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Diff for /loncom/homework/grades.pm between versions 1.42 and 1.273

version 1.42, 2002/07/26 20:28:42 version 1.273, 2005/06/04 19:05:31
Line 25 Line 25
 #  #
 # http://www.lon-capa.org/  # http://www.lon-capa.org/
 #  #
 # 2/9,2/13 Guy Albertelli  
 # 6/8 Gerd Kortemeyer  
 # 7/26 H.K. Ng  
 # 8/20 Gerd Kortemeyer  
 # Year 2002  
 # June, July 2002 H.K. Ng  
 #  
   
 package Apache::grades;  package Apache::grades;
 use strict;  use strict;
Line 39  use Apache::style; Line 32  use Apache::style;
 use Apache::lonxml;  use Apache::lonxml;
 use Apache::lonnet;  use Apache::lonnet;
 use Apache::loncommon;  use Apache::loncommon;
   use Apache::lonhtmlcommon;
   use Apache::lonnavmaps;
 use Apache::lonhomework;  use Apache::lonhomework;
   use Apache::loncoursedata;
 use Apache::lonmsg qw(:user_normal_msg);  use Apache::lonmsg qw(:user_normal_msg);
 use Apache::Constants qw(:common);  use Apache::Constants qw(:common);
 #use Time::HiRes qw( gettimeofday tv_interval );  use Apache::lonlocal;
   use String::Similarity;
   
 sub moreinfo {  my %oldessays=();
     my ($request,$reason) = @_;  my %perm=();
     $request->print("Unable to process request: $reason");  
     if ( $Apache::grades::viewgrades eq 'F' ) {  
  $request->print('<form action="/adm/grades" method="post">'."\n");  
  if ($ENV{'form.url'}) {  
     $request->print('<input type="hidden" name="url" value="'.$ENV{'form.url'}.'" />'."\n");  
  }  
  if ($ENV{'form.symb'}) {  
     $request->print('<input type="hidden" name="symb" value="'.$ENV{'form.symb'}.'" />'."\n");  
  }  
 #    $request->print('<input type="hidden" name="command" value="submission" />'."\n");  
  $request->print('<input type="hidden" name="command" value="'.$ENV{'form.command'}.'" />'."\n");  
  $request->print("Student:".'<input type="text" name="student" value="'.$ENV{'form.student'}.'" />'."<br />\n");  
  $request->print("Domain:".'<input type="text" name="domain" value="'.$ENV{'user.domain'}.'" />'."<br />\n");  
  $request->print('<input type="submit" name="submit" value="ReSubmit" />'."<br />\n");  
  $request->print('</form>');  
     }  
     return '';  
 }  
   
 sub verifyreceipt {  # ----- These first few routines are general use routines.----
     my $request=shift;  #
     my $courseid=$ENV{'request.course.id'};  # --- Retrieve the parts from the metadata file.---
 #    my $cdom=$ENV{"course.$courseid.domain"};  sub getpartlist {
 #    my $cnum=$ENV{"course.$courseid.num"};      my ($url,$symb) = @_;
     my $receipt=unpack("%32C*",$Apache::lonnet::perlvar{'lonHostID'}).'-'.      my $partorder = &Apache::lonnet::metadata($url, 'partorder');
  $ENV{'form.receipt'};      my @parts;
     $receipt=~s/[^\-\d]//g;      if ($partorder) {
     my $symb=$ENV{'form.symb'};   for my $part (split (/,/,$partorder)) {
     unless ($symb) {      if (!&Apache::loncommon::check_if_partid_hidden($part,$symb)) {
  $symb=&Apache::lonnet::symbread($ENV{'form.url'});   push(@parts, $part);
       }
    }    
       } else {
    my $metadata = &Apache::lonnet::metadata($url, 'packages');
    foreach (split(/\,/,$metadata)) {
       if ($_ =~ /^part_(.*)$/) {
    if (!&Apache::loncommon::check_if_partid_hidden($1,$symb)) {
       push(@parts, $1);
    }
       }
    }
     }      }
     if ((&Apache::lonnet::allowed('mgr',$courseid)) && ($symb)) {      my @stores;
         $request->print('<h1>Verifying Submission Receipt '.$receipt.'</h1>');      foreach my $part (@parts) {
         my $matches=0;   my (@metakeys) = split(/,/,&Apache::lonnet::metadata($url,'keys'));
         my ($classlist) = &getclasslist('all','0');   foreach my $key (@metakeys) {
         foreach my $student ( sort(@{ $$classlist{'all'} }) ) {      if ($key =~ m/^stores_\Q$part\E_/) { push(@stores,$key); }
             my ($uname,$udom)=split(/\:/,$student);   }
             if ($receipt eq   
  &Apache::lonnet::ireceipt($uname,$udom,$courseid,$symb)) {  
  $request->print('Matching '.$student.'<br>');  
  $matches++;  
    }  
         }  
         $request->printf('<p>'.$matches." match%s</p>",$matches <= 1 ? '' : 'es');  
 # needs to print who is matched  
     }      }
     return '';      return @stores;
 }  }
   
 sub student_gradeStatus {  # --- Get the symbolic name of a problem and the url
     my ($url,$udom,$uname,$partlist) = @_;  sub get_symb_and_url {
     my $symb=($ENV{'form.symb'} ne '' ? $ENV{'form.symb'} : (&Apache::lonnet::symbread($url)));      my ($request,$silent) = @_;
     my %record= &Apache::lonnet::restore($symb,$ENV{'request.course.id'},$udom,$uname);      (my $url=$env{'form.url'}) =~ s-^http://($ENV{'SERVER_NAME'}|$ENV{'HTTP_HOST'})--;
     my %partstatus = ();      my $symb=($env{'form.symb'} ne '' ? $env{'form.symb'} : (&Apache::lonnet::symbread($url)));
     foreach (@$partlist) {      if ($symb eq '') { 
  my ($status,$foo)=split(/_/,$record{"resource.$_.solved"},2);   if (!$silent) {
  $status = 'nothing' if ($status eq '');      $request->print("Unable to handle ambiguous references:$url:.");
  $partstatus{$_} = $status;      return ();
  $partstatus{"resource.$_.submitted_by"} = $record{"resource.$_.submitted_by"}    }
  if ($record{"resource.$_.submitted_by"} ne '');  
     }      }
     return %partstatus;      return ($symb,$url);
 }  }
   
 sub get_fullname {  #--- Format fullname, username:domain if different for display
     my ($uname,$udom) = @_;  #--- Use anywhere where the student names are listed
     my %name=&Apache::lonnet::get('environment', ['lastname','generation',  sub nameUserString {
   'firstname','middlename'],$udom,$uname);      my ($type,$fullname,$uname,$udom) = @_;
     my $fullname;      if ($type eq 'header') {
     my ($tmp) = keys(%name);   return '<b>&nbsp;Fullname&nbsp;</b><font color="#999999">(Username)</font>';
     if ($tmp !~ /^(con_lost|error|no_such_host)/i) {      } else {
  $fullname=$name{'lastname'}.$name{'generation'};   return '&nbsp;'.$fullname.'<font color="#999999">&nbsp;('.$uname.
  if ($fullname =~ /[^\s]+/) { $fullname.=', '; }      ($env{'user.domain'} eq $udom ? '' : ' ('.$udom.')').')</font>';
  $fullname.=$name{'firstname'}.' '.$name{'middlename'};  
     }      }
     return $fullname;  
 }  }
   
   #--- Get the partlist and the response type for a given problem. ---
   #--- Indicate if a response type is coded handgraded or not. ---
 sub response_type {  sub response_type {
     my ($url) = shift;      my ($url,$symb) = shift;
       $symb=($env{'form.symb'} ne '' ? $env{'form.symb'} : (&Apache::lonnet::symbread($url))) if ($symb eq '');
     my $allkeys = &Apache::lonnet::metadata($url,'keys');      my $allkeys = &Apache::lonnet::metadata($url,'keys');
 #    print "allkeys=>$allkeys<br>";      my %vPart;
       foreach my $partid (&Apache::loncommon::get_env_multiple('form.vPart')) {
    $vPart{$partid}=1;
       }
     my %seen = ();      my %seen = ();
     my (@partlist,%handgrade);      my (@partlist,%handgrade,%responseType);
     foreach (split(/,/,&Apache::lonnet::metadata($url,'packages'))) {      foreach (split(/,/,&Apache::lonnet::metadata($url,'packages'))) {
  if (/^\w+response_\d{1,2}.*/) {   if (/^\w+response_.*/) {
     my ($responsetype,$part) = split(/_/,$_,2);      my ($responsetype,$part) = split(/_/,$_,2);
     my ($partid,$respid) = split(/_/,$part);      my ($partid,$respid) = split(/_/,$part);
     $handgrade{$part} = $responsetype.':'.($allkeys =~ /parameter_$part\_handgrade/ ? 'yes' : 'no');      if (&Apache::loncommon::check_if_partid_hidden($partid,$symb)) {
    next;
       }
       if (%vPart && !exists($vPart{$partid})) {
    next;
       }
       $responsetype =~ s/response$//; # make it compatible w/ navmaps - should move to that!!
       my ($value) = &Apache::lonnet::EXT('resource.'.$part.'.handgrade',$symb);
       $handgrade{$part} = ($value eq 'yes' ? 'yes' : 'no'); 
       if (!exists($responseType{$partid})) { $responseType{$partid}={}; }
       $responseType{$partid}->{$respid}=$responsetype;
     next if ($seen{$partid} > 0);      next if ($seen{$partid} > 0);
     $seen{$partid}++;      $seen{$partid}++;
     push @partlist,$partid;      push @partlist,$partid;
  }   }
     }      }
     return \@partlist,\%handgrade;      return \@partlist,\%handgrade,\%responseType;
   }
   
   sub get_display_part {
       my ($partID,$url,$symb)=@_;
       if (!defined($symb) || $symb eq '') {
    $symb=$env{'form.symb'};
    if ($symb eq '') { $symb=&Apache::lonnet::symbread($url) }
       }
       my $display=&Apache::lonnet::EXT('resource.'.$partID.'.display',$symb);
       if (defined($display) and $display ne '') {
    $display.= " (<font color=\"#999900\">id $partID</font>)";
       } else {
    $display=$partID;
       }
       return $display;
   }
   
   #--- Show resource title
   #--- and parts and response type
   sub showResourceInfo {
       my ($url,$probTitle,$checkboxes) = @_;
       my $col=3;
       if ($checkboxes) { $col=4; }
       my $result ='<table border="0">'.
    '<tr><td colspan="'.$col.'"><font size="+1"><b>'.&mt('Current Resource').': </b>'.
    $probTitle.'</font></td></tr>'."\n";
       my ($partlist,$handgrade,$responseType) = &response_type($url);
       my %resptype = ();
       my $hdgrade='no';
       my %partsseen;
       for my $part_resID (sort keys(%$handgrade)) {
    my $handgrade=$$handgrade{$part_resID};
    my ($partID,$resID) = split(/_/,$part_resID);
    my $responsetype = $responseType->{$partID}->{$resID};
    $hdgrade = $handgrade if ($handgrade eq 'yes');
    $result.='<tr>';
    if ($checkboxes) {
       if (exists($partsseen{$partID})) {
    $result.="<td>&nbsp;</td>";
       } else {
    $result.="<td><input type='checkbox' name='vPart' value='$partID' checked='on' /></td>";
       }
       $partsseen{$partID}=1;
    }
    my $display_part=&get_display_part($partID,$url);
    $result.='<td><b>Part: </b>'.$display_part.' <font color="#999999">'.
       $resID.'</font></td>'.
       '<td><b>Type: </b>'.$responsetype.'</td></tr>';
   #    '<td><b>Handgrade: </b>'.$handgrade.'</td></tr>';
       }
       $result.='</table>'."\n";
       return $result,$responseType,$hdgrade,$partlist,$handgrade;
   }
   
   
   sub get_order {
       my ($partid,$respid,$symb,$uname,$udom)=@_;
       my (undef,undef,$url)=&Apache::lonnet::decode_symb($symb);
       $url=&Apache::lonnet::clutter($url);
       my $subresult=&Apache::lonnet::ssi($url,
          ('grade_target' => 'analyze'),
          ('grade_domain' => $udom),
          ('grade_symb' => $symb),
          ('grade_courseid' => 
           $env{'request.course.id'}),
          ('grade_username' => $uname));
       (undef,$subresult)=split(/_HASH_REF__/,$subresult,2);
       my %analyze=&Apache::lonnet::str2hash($subresult);
       return ($analyze{"$partid.$respid.shown"});
   }
   #--- Clean response type for display
   #--- Currently filters option/rank/radiobutton/match/essay response types only.
   sub cleanRecord {
       my ($answer,$response,$symb,$partid,$respid,$record,$order,$version) = @_;
       my $grayFont = '<font color="#999999">';
       if ($response =~ /^(option|rank)$/) {
    my %answer=&Apache::lonnet::str2hash($answer);
    my %grading=&Apache::lonnet::str2hash($record->{$version."resource.$partid.$respid.submissiongrading"});
    my ($toprow,$bottomrow);
    foreach my $foil (@$order) {
       if ($grading{$foil} == 1) {
    $toprow.='<td><b>'.$answer{$foil}.'&nbsp;</b></td>';
       } else {
    $toprow.='<td><i>'.$answer{$foil}.'&nbsp;</i></td>';
       }
       $bottomrow.='<td>'.$grayFont.$foil.'</font>&nbsp;</td>';
    }
    return '<blockquote><table border="1">'.
       '<tr valign="top"><td>Answer</td>'.$toprow.'</tr>'.
       '<tr valign="top"><td>'.$grayFont.'Option ID</font></td>'.
       $grayFont.$bottomrow.'</tr>'.'</table></blockquote>';
       } elsif ($response eq 'match') {
    my %answer=&Apache::lonnet::str2hash($answer);
    my %grading=&Apache::lonnet::str2hash($record->{$version."resource.$partid.$respid.submissiongrading"});
    my @items=&Apache::lonnet::str2array($record->{$version."resource.$partid.$respid.submissionitems"});
    my ($toprow,$middlerow,$bottomrow);
    foreach my $foil (@$order) {
       my $item=shift(@items);
       if ($grading{$foil} == 1) {
    $toprow.='<td><b>'.$item.'&nbsp;</b></td>';
    $middlerow.='<td><b>'.$grayFont.$answer{$foil}.'&nbsp;</font></b></td>';
       } else {
    $toprow.='<td><i>'.$item.'&nbsp;</i></td>';
    $middlerow.='<td><i>'.$grayFont.$answer{$foil}.'&nbsp;</font></i></td>';
       }
       $bottomrow.='<td>'.$grayFont.$foil.'</font>&nbsp;</td>';
    }
    return '<blockquote><table border="1">'.
       '<tr valign="top"><td>Answer</td>'.$toprow.'</tr>'.
       '<tr valign="top"><td>'.$grayFont.'Item ID</font></td>'.
       $middlerow.'</tr>'.
       '<tr valign="top"><td>'.$grayFont.'Option ID</font></td>'.
       $bottomrow.'</tr>'.'</table></blockquote>';
       } elsif ($response eq 'radiobutton') {
    my %answer=&Apache::lonnet::str2hash($answer);
    my ($toprow,$bottomrow);
    my $correct=($order->[0])+1;
    for (my $i=1;$i<=$#$order;$i++) {
       my $foil=$order->[$i];
       if (exists($answer{$foil})) {
    if ($i == $correct) {
       $toprow.='<td><b>true</b></td>';
    } else {
       $toprow.='<td><i>true</i></td>';
    }
       } else {
    $toprow.='<td>false</td>';
       }
       $bottomrow.='<td>'.$grayFont.$foil.'</font>&nbsp;</td>';
    }
    return '<blockquote><table border="1">'.
       '<tr valign="top"><td>Answer</td>'.$toprow.'</tr>'.
       '<tr valign="top"><td>'.$grayFont.'Option ID</font></td>'.
       $grayFont.$bottomrow.'</tr>'.'</table></blockquote>';
       } elsif ($response eq 'essay') {
    if (! exists ($env{'form.'.$symb})) {
       my (%keyhash) = &Apache::lonnet::dump('nohist_handgrade',
     $env{'course.'.$env{'request.course.id'}.'.domain'},
     $env{'course.'.$env{'request.course.id'}.'.num'});
   
       my $loginuser = $env{'user.name'}.':'.$env{'user.domain'};
       $env{'form.keywords'} = $keyhash{$symb.'_keywords'} ne '' ? $keyhash{$symb.'_keywords'} : '';
       $env{'form.kwclr'}    = $keyhash{$loginuser.'_kwclr'} ne '' ? $keyhash{$loginuser.'_kwclr'} : 'red';
       $env{'form.kwsize'}   = $keyhash{$loginuser.'_kwsize'} ne '' ? $keyhash{$loginuser.'_kwsize'} : '0';
       $env{'form.kwstyle'}  = $keyhash{$loginuser.'_kwstyle'} ne '' ? $keyhash{$loginuser.'_kwstyle'} : '';
       $env{'form.'.$symb} = 1; # so that we don't have to read it from disk for multiple sub of the same prob.
    }
    $answer =~ s-\n-<br />-g;
    return '<br /><br /><blockquote><tt>'.&keywords_highlight($answer).'</tt></blockquote>';
       } elsif ( $response eq 'organic') {
    my $result='Smile representation: "<tt>'.$answer.'</tt>"';
    my $jme=$record->{$version."resource.$partid.$respid.molecule"};
    $result.=&Apache::chemresponse::jme_img($jme,$answer,400);
    return $result;
       }
       return $answer;
   }
   
   #-- A couple of common js functions
   sub commonJSfunctions {
       my $request = shift;
       $request->print(<<COMMONJSFUNCTIONS);
   <script type="text/javascript" language="javascript">
       function radioSelection(radioButton) {
    var selection=null;
    if (radioButton.length > 1) {
       for (var i=0; i<radioButton.length; i++) {
    if (radioButton[i].checked) {
       return radioButton[i].value;
    }
       }
    } else {
       if (radioButton.checked) return radioButton.value;
    }
    return selection;
       }
   
       function pullDownSelection(selectOne) {
    var selection="";
    if (selectOne.length > 1) {
       for (var i=0; i<selectOne.length; i++) {
    if (selectOne[i].selected) {
       return selectOne[i].value;
    }
       }
    } else {
               // only one value it must be the selected one
       return selectOne.value;
    }
       }
   </script>
   COMMONJSFUNCTIONS
   }
   
   #--- Dumps the class list with usernames,list of sections,
   #--- section, ids and fullnames for each user.
   sub getclasslist {
       my ($getsec,$filterlist) = @_;
       $getsec = $getsec eq '' ? 'all' : $getsec;
       my $classlist=&Apache::loncoursedata::get_classlist();
       # Bail out if we were unable to get the classlist
       return if (! defined($classlist));
       #
       my %sections;
       my %fullnames;
       foreach my $student (keys(%$classlist)) {
           my $end      = 
               $classlist->{$student}->[&Apache::loncoursedata::CL_END()];
           my $start    = 
               $classlist->{$student}->[&Apache::loncoursedata::CL_START()];
           my $id       = 
               $classlist->{$student}->[&Apache::loncoursedata::CL_ID()];
           my $section  = 
               $classlist->{$student}->[&Apache::loncoursedata::CL_SECTION()];
           my $fullname = 
               $classlist->{$student}->[&Apache::loncoursedata::CL_FULLNAME()];
           my $status   = 
               $classlist->{$student}->[&Apache::loncoursedata::CL_STATUS()];
    # filter students according to status selected
    if ($filterlist && $env{'form.Status'} ne 'Any') {
       if ($env{'form.Status'} ne $status) {
    delete ($classlist->{$student});
    next;
       }
    }
    $section = ($section ne '' ? $section : 'none');
    if (&canview($section)) {
       if ($getsec eq 'all' || $getsec eq $section) {
    $sections{$section}++;
    $fullnames{$student}=$fullname;
       } else {
    delete($classlist->{$student});
       }
    } else {
       delete($classlist->{$student});
    }
       }
       my %seen = ();
       my @sections = sort(keys(%sections));
       return ($classlist,\@sections,\%fullnames);
   }
   
   sub canmodify {
       my ($sec)=@_;
       if ($perm{'mgr'}) {
    if (!defined($perm{'mgr_section'})) {
       # can modify whole class
       return 1;
    } else {
       if ($sec eq $perm{'mgr_section'}) {
    #can modify the requested section
    return 1;
       } else {
    # can't modify the request section
    return 0;
       }
    }
       }
       #can't modify
       return 0;
   }
   
   sub canview {
       my ($sec)=@_;
       if ($perm{'vgr'}) {
    if (!defined($perm{'vgr_section'})) {
       # can modify whole class
       return 1;
    } else {
       if ($sec eq $perm{'vgr_section'}) {
    #can modify the requested section
    return 1;
       } else {
    # can't modify the request section
    return 0;
       }
    }
       }
       #can't modify
       return 0;
   }
   
   #--- Retrieve the grade status of a student for all the parts
   sub student_gradeStatus {
       my ($url,$symb,$udom,$uname,$partlist) = @_;
       my %record     = &Apache::lonnet::restore($symb,$env{'request.course.id'},$udom,$uname);
       my %partstatus = ();
       foreach (@$partlist) {
    my ($status,undef)   = split(/_/,$record{"resource.$_.solved"},2);
    $status              = 'nothing' if ($status eq '');
    $partstatus{$_}      = $status;
    my $subkey           = "resource.$_.submitted_by";
    $partstatus{$subkey} = $record{$subkey} if ($record{$subkey} ne '');
       }
       return %partstatus;
   }
   
   # hidden form and javascript that calls the form
   # Use by verifyscript and viewgrades
   # Shows a student's view of problem and submission
   sub jscriptNform {
       my ($url,$symb) = @_;
       my $jscript='<script type="text/javascript" language="javascript">'."\n".
    '    function viewOneStudent(user,domain) {'."\n".
    ' document.onestudent.student.value = user;'."\n".
    ' document.onestudent.userdom.value = domain;'."\n".
    ' document.onestudent.submit();'."\n".
    '    }'."\n".
    '</script>'."\n";
       $jscript.= '<form action="/adm/grades" method="post" name="onestudent">'."\n".
    '<input type="hidden" name="symb"    value="'.$symb.'" />'."\n".
    '<input type="hidden" name="url"     value="'.$url.'" />'."\n".
    '<input type="hidden" name="saveState" value="'.$env{'form.saveState'}.'" />'."\n".
    '<input type="hidden" name="probTitle" value="'.$env{'form.probTitle'}.'" />'."\n".
    '<input type="hidden" name="Status"  value="'.$env{'form.Status'}.'" />'."\n".
    '<input type="hidden" name="command" value="submission" />'."\n".
    '<input type="hidden" name="student" value="" />'."\n".
    '<input type="hidden" name="userdom" value="" />'."\n".
    '</form>'."\n";
       return $jscript;
   }
   
   #------------------ End of general use routines --------------------
   
   #
   # Find most similar essay
   #
   
   sub most_similar {
       my ($uname,$udom,$uessay)=@_;
   
   # ignore spaces and punctuation
   
       $uessay=~s/\W+/ /gs;
   
   # these will be returned. Do not care if not at least 50 percent similar
       my $limit=0.6;
       my $sname='';
       my $sdom='';
       my $scrsid='';
       my $sessay='';
   # go through all essays ...
       foreach my $tkey (keys %oldessays) {
    my ($tname,$tdom,$tcrsid)=split(/\./,$tkey);
   # ... except the same student
           if (($tname ne $uname) || ($tdom ne $udom)) {
       my $tessay=$oldessays{$tkey};
               $tessay=~s/\W+/ /gs;
   # String similarity gives up if not even limit
               my $tsimilar=&String::Similarity::similarity($uessay,$tessay,$limit);
   # Found one
               if ($tsimilar>$limit) {
    $limit=$tsimilar;
                   $sname=$tname;
                   $sdom=$tdom;
                   $scrsid=$tcrsid;
                   $sessay=$oldessays{$tkey};
               }
           } 
       }
       if ($limit>0.6) {
          return ($sname,$sdom,$scrsid,$sessay,$limit);
       } else {
          return ('','','','',0);
       }
 }  }
   
   #-------------------------------------------------------------------
   
   #------------------------------------ Receipt Verification Routines
   #
   #--- Check whether a receipt number is valid.---
   sub verifyreceipt {
       my $request  = shift;
   
       my $courseid = $env{'request.course.id'};
       my $receipt  = &Apache::lonnet::recprefix($courseid).'-'.
    $env{'form.receipt'};
       $receipt     =~ s/[^\-\d]//g;
       my $url      = $env{'form.url'};
       my $symb     = $env{'form.symb'};
       unless ($symb) {
    $symb    = &Apache::lonnet::symbread($url);
       }
   
       my $title.='<h3><font color="#339933">Verifying Submission Receipt '.
    $receipt.'</h3></font>'."\n".
    '<font size=+1><b>Resource: </b>'.$env{'form.probTitle'}.'</font><br><br>'."\n";
   
       my ($string,$contents,$matches) = ('','',0);
       my (undef,undef,$fullname) = &getclasslist('all','0');
       
       my $receiptparts=0;
       if ($env{"course.$courseid.receiptalg"} eq 'receipt2') { $receiptparts=1; }
       my $parts=['0'];
       if ($receiptparts) { ($parts)=&response_type($url,$symb); }
       foreach (sort {lc($$fullname{$a}) cmp lc($$fullname{$b}) } keys %$fullname) {
    my ($uname,$udom)=split(/\:/);
    foreach my $part (@$parts) {
       if ($receipt eq &Apache::lonnet::ireceipt($uname,$udom,$courseid,$symb,$part)) {
    $contents.='<tr bgcolor="#ffffe6"><td>&nbsp;'."\n".
       '<a href="javascript:viewOneStudent(\''.$uname.'\',\''.$udom.
       '\')"; TARGET=_self>'.$$fullname{$_}.'</a>&nbsp;</td>'."\n".
       '<td>&nbsp;'.$uname.'&nbsp;</td>'.
       '<td>&nbsp;'.$udom.'&nbsp;</td>';
    if ($receiptparts) {
       $contents.='<td>&nbsp;'.$part.'&nbsp;</td>';
    }
    $contents.='</tr>'."\n";
   
    $matches++;
       }
    }
       }
       if ($matches == 0) {
    $string = $title.'No match found for the above receipt.';
       } else {
    $string = &jscriptNform($url,$symb).$title.
       'The above receipt matches the following student'.
       ($matches <= 1 ? '.' : 's.')."\n".
       '<table border="0"><tr><td bgcolor="#777777">'."\n".
       '<table border="0"><tr bgcolor="#e6ffff">'."\n".
       '<td><b>&nbsp;Fullname&nbsp;</b></td>'."\n".
       '<td><b>&nbsp;Username&nbsp;</b></td>'."\n".
       '<td><b>&nbsp;Domain&nbsp;</b></td>';
    if ($receiptparts) {
       $string.='<td>&nbsp;Problem Part&nbsp;</td>';
    }
    $string.='</tr>'."\n".$contents.
       '</table></td></tr></table>'."\n";
       }
       return $string.&show_grading_menu_form($symb,$url);
   }
   
   #--- This is called by a number of programs.
   #--- Called from the Grading Menu - View/Grade an individual student
   #--- Also called directly when one clicks on the subm button 
   #    on the problem page.
 sub listStudents {  sub listStudents {
     my ($request) = shift;      my ($request) = shift;
     my $cdom      =$ENV{"course.$ENV{'request.course.id'}.domain"};  
     my $cnum      =$ENV{"course.$ENV{'request.course.id'}.num"};  
     my $getsec    =$ENV{'form.section'} eq '' ? 'all' : $ENV{'form.section'};  
     my $submitonly=$ENV{'form.submitonly'} eq '' ? 'all' : $ENV{'form.submitonly'};  
   
     my $result='<h2><font color="#339933">&nbsp;View Submissions for a Student or a Group of Students</font></h2>';      my ($symb,$url) = &get_symb_and_url($request);
     $result.='<table border="0">';      my $cdom      = $env{"course.$env{'request.course.id'}.domain"};
     $result.='<tr><td colspan=3><font size=+1><b>Resource: </b>'.$ENV{'form.url'}.'</font></td></tr>';      my $cnum      = $env{"course.$env{'request.course.id'}.num"};
     my ($partlist,$handgrade) = &response_type($ENV{'form.url'});      my $getsec    = $env{'form.section'} eq '' ? 'all' : $env{'form.section'};
     for (sort keys(%$handgrade)) {      my $submitonly= $env{'form.submitonly'} eq '' ? 'all' : $env{'form.submitonly'};
  my ($responsetype,$handgrade)=split(/:/,$$handgrade{$_});  
  $ENV{'form.handgrade'} = 'yes' if ($handgrade eq 'yes');      my $viewgrade = $env{'form.showgrading'} eq 'yes' ? 'View/Grade/Regrade' : 'View';
  $result.='<tr><td><b>Part id: </b>'.$_.'</td>'.      $env{'form.probTitle'} = $env{'form.probTitle'} eq '' ? 
     '<td><b>Type: </b>'.$responsetype.'</td>'.   &Apache::lonnet::gettitle($symb) : $env{'form.probTitle'};
     '<td><b>Handgrade: </b>'.$handgrade.'</font></td></tr>';  
       my $result='<h3><font color="#339933">&nbsp;'.$viewgrade.
    ' Submissions for a Student or a Group of Students</font></h3>';
   
       my ($table,undef,$hdgrade,$partlist,$handgrade) = &showResourceInfo($url,$env{'form.probTitle'},($env{'form.showgrading'} eq 'yes'));
   
       $request->print(<<LISTJAVASCRIPT);
   <script type="text/javascript" language="javascript">
       function checkSelect(checkBox) {
    var ctr=0;
    var sense="";
    if (checkBox.length > 1) {
       for (var i=0; i<checkBox.length; i++) {
    if (checkBox[i].checked) {
       ctr++;
    }
       }
       sense = "a student or group of students";
    } else {
       if (checkBox.checked) {
    ctr = 1;
       }
       sense = "the student";
    }
    if (ctr == 0) {
       alert("Please select "+sense+" before clicking on the Next button.");
       return false;
    }
    document.gradesub.submit();
     }      }
     $result.='</table>';  
     $request->print($result);  
   
     $request->print(<<ENDTABLEST);      function reLoadList(formname) {
 <form action="/adm/grades" method="post">   if (formname.saveStatusOld.value == pullDownSelection(formname.Status)) {return;}
 &nbsp;<b>View Problem: </b><input type="radio" name="vProb" value="no" checked> no    formname.command.value = 'submission';
 <input type="radio" name="vProb" value="yes"> yes <br />   formname.submit();
 &nbsp;<b>Submissions: </b>  
 <input type="radio" name="lastSub" value="hdgrade" checked /> handgrade only  
 <input type="radio" name="lastSub" value="lastonly" /> last sub only  
 <input type="radio" name="lastSub" value="last" /> last sub & parts info  
 <input type="radio" name="lastSub" value="all" /> all details  
 <input type="hidden" name="section" value="$getsec" />  
 <input type="hidden" name="submitonly" value="$submitonly" />  
 <input type="hidden" name="response" value="$ENV{'form.response'}" />  
 <input type="hidden" name="handgrade" value="$ENV{'form.handgrade'}" /><br />  
 <input type="hidden" name="showgrading" value="$ENV{'form.showgrading'}" /><br />  
 <input type="submit" name="submit" value="View/Grade" />  
 ENDTABLEST  
     if ($ENV{'form.url'}) {  
  $request->print('<input type="hidden" name="url" value="'.$ENV{'form.url'}.'" />'."\n");  
     }      }
     if ($ENV{'form.symb'}) {  </script>
  $request->print('<input type="hidden" name="symb" value="'.$ENV{'form.symb'}.'" />'."\n");  LISTJAVASCRIPT
   
       &commonJSfunctions($request);
       $request->print($result);
   
       my $checkhdgrade = ($env{'form.handgrade'} eq 'yes' && scalar(@$partlist) > 1 ) ? 'checked' : '';
       my $checklastsub = $checkhdgrade eq '' ? 'checked' : '';
       my $gradeTable='<form action="/adm/grades" method="post" name="gradesub">'.
    "\n".$table.
    '&nbsp;<b>View Problem Text: </b><label><input type="radio" name="vProb" value="no" checked="on" /> no </label>'."\n".
    '<label><input type="radio" name="vProb" value="yes" /> one student </label>'."\n".
    '<label><input type="radio" name="vProb" value="all" /> all students </label><br />'."\n".
    '&nbsp;<b>View Answer: </b><label><input type="radio" name="vAns" value="no"  /> no </label>'."\n".
    '<label><input type="radio" name="vAns" value="yes" /> one student </label>'."\n".
    '<label><input type="radio" name="vAns" value="all" checked="on" /> all students </label><br />'."\n".
    '&nbsp;<b>Submissions: </b>'."\n";
       if ($env{'form.handgrade'} eq 'yes' && scalar(@$partlist) > 1) {
    $gradeTable.='<label><input type="radio" name="lastSub" value="hdgrade" '.$checkhdgrade.' /> essay part only </label>'."\n";
       }
   
       my $saveStatus = $env{'form.Status'} eq '' ? 'Active' : $env{'form.Status'};
       $env{'form.Status'} = $saveStatus;
   
       $gradeTable.='<label><input type="radio" name="lastSub" value="lastonly" '.$checklastsub.' /> last submission only </label>'."\n".
    '<label><input type="radio" name="lastSub" value="last" /> last submission & parts info </label>'."\n".
    '<label><input type="radio" name="lastSub" value="datesub" /> by dates and submissions </label>'."\n".
    '<label><input type="radio" name="lastSub" value="all" /> all details</label>'."\n".
    '<input type="hidden" name="section"     value="'.$getsec.'" />'."\n".
    '<input type="hidden" name="submitonly"  value="'.$submitonly.'" />'."\n".
    '<input type="hidden" name="handgrade"   value="'.$env{'form.handgrade'}.'" /><br />'."\n".
    '<input type="hidden" name="showgrading" value="'.$env{'form.showgrading'}.'" /><br />'."\n".
    '<input type="hidden" name="saveState"   value="'.$env{'form.saveState'}.'" />'."\n".
    '<input type="hidden" name="probTitle"   value="'.$env{'form.probTitle'}.'" />'."\n".
    '<input type="hidden" name="url"  value="'.$url.'" />'."\n".
    '<input type="hidden" name="symb" value="'.$symb.'" />'."\n".
    '<input type="hidden" name="saveStatusOld" value="'.$saveStatus.'" />'."\n";
   
       if (exists($env{'form.gradingMenu'}) && exists($env{'form.Status'})) {
    $gradeTable.='<input type="hidden" name="Status"   value="'.$env{'form.Status'}.'" />'."\n";
       } else {
    $gradeTable.='<b>Student Status:</b> '.
       &Apache::lonhtmlcommon::StatusOptions($saveStatus,undef,1,'javascript:reLoadList(this.form);').'<br />';
     }      }
     $request->print('<input type="hidden" name="command" value="processGroup" />'."\n");  
           $gradeTable.='To '.lc($viewgrade).' a submission or a group of submissions, click on the check box(es) '.
     my ($classlist,$seclist,$ids,$stusec,$fullname) = &getclasslist($getsec,'0');   'next to the student\'s name(s). Then click on the Next button.<br />'."\n".
        '<input type="hidden" name="command" value="processGroup" />'."\n";
     $result='<table border="0"><tr><td bgcolor="#777777">'.  
  '<table border="0"><tr bgcolor="#e6ffff">'.  # checkall buttons
  '<td><b>&nbsp;Select&nbsp;</b></td><td><b>&nbsp;Username&nbsp;</b></td>'.      $gradeTable.=&check_script('gradesub', 'stuinfo');
  '<td><b>&nbsp;Fullname&nbsp;</b></td><td><b>&nbsp;Domain&nbsp;</b></td>';      $gradeTable.='<input type="button" '."\n".
     foreach (sort(@$partlist)) {   'onClick="javascript:checkSelect(this.form.stuinfo);" '."\n".
  $result.='<td><b>&nbsp;Part ID '.$_.' Status&nbsp;</b></td>';   'value="Next->" /> <br />'."\n";
       $gradeTable.=&check_buttons();
       $gradeTable.='<label><input type="checkbox" name="checkPlag" checked="on" />Check For Plagiarism</label>';
       my ($classlist, undef, $fullname) = &getclasslist($getsec,'1');
       $gradeTable.='<table border="0"><tr><td bgcolor="#777777">'.
    '<table border="0"><tr bgcolor="#e6ffff">';
       my $loop = 0;
       while ($loop < 2) {
    $gradeTable.='<td><b>&nbsp;No.</b>&nbsp;</td><td><b>&nbsp;Select&nbsp;</b></td>'.
       '<td>'.&nameUserString('header').'&nbsp;Section/Group</td>';
    if ($env{'form.showgrading'} eq 'yes' && $submitonly ne 'all') {
       foreach (sort(@$partlist)) {
    my $display_part=&get_display_part((split(/_/))[0],$url,$symb);
    $gradeTable.='<td><b>&nbsp;Part: '.$display_part.
       ' Status&nbsp;</b></td>';
       }
    }
    $loop++;
   # $gradeTable.='<td></td>' if ($loop%2 ==1);
     }      }
     $request->print($result.'</tr>'."\n");      $gradeTable.='</tr>'."\n";
   
     foreach my $student (sort(@{ $$classlist{$getsec} }) ) {      my $ctr = 0;
       foreach my $student (sort {lc($$fullname{$a}) cmp lc($$fullname{$b}) } keys %$fullname) {
  my ($uname,$udom) = split(/:/,$student);   my ($uname,$udom) = split(/:/,$student);
  my (%status) = &student_gradeStatus($ENV{'form.url'},$udom,$uname,$partlist);   my %status = ();
  my $statusflg = '';   if ($env{'form.showgrading'} eq 'yes' && $submitonly ne 'all') {
  foreach (keys(%status)) {      (%status) =&student_gradeStatus($url,$symb,$udom,$uname,$partlist);
     $statusflg = 1 if ($status{$_} ne 'nothing');      my $submitted = 0;
     my ($foo,$partid,$foo) = split(/\./,$_);      my $graded = 0;
     if ($status{'resource.'.$partid.'.submitted_by'} ne '') {      my $incorrect = 0;
  $statusflg = '';      foreach (keys(%status)) {
  $request->print('<input type="hidden" name="'.   $submitted = 1 if ($status{$_} ne 'nothing');
  $student.':submitted_by" value="'.   $graded = 1 if ($status{$_} =~ /^ungraded/);
  $status{'resource.'.$partid.'.submitted_by'}.'" />');   $incorrect = 1 if ($status{$_} =~ /^incorrect/);
     }  
  }   my ($foo,$partid,$foo1) = split(/\./,$_);
  next if ($statusflg eq '' && $submitonly eq 'yes');   if ($status{'resource.'.$partid.'.submitted_by'} ne '') {
       $submitted = 0;
  if ( $Apache::grades::viewgrades eq 'F' ) {      my ($part)=split(/\./,$partid);
     $result='<tr bgcolor="#ffffe6">'.      $gradeTable.='<input type="hidden" name="'.
  '<td align="center"><input type=checkbox name="stuinfo" value="'.   $student.':'.$part.':submitted_by" value="'.
  $student.':'.$$fullname{$student}.'"></td>'."\n".   $status{'resource.'.$partid.'.submitted_by'}.'" />';
  '<td>&nbsp;'.$uname.'&nbsp;</td>'."\n".   }
  '<td>&nbsp;'.$$fullname{$student}.'&nbsp;</td>'."\n".      }
  '<td align="middle">&nbsp;'.$udom.'&nbsp;</td>'."\n";  
           
     foreach (sort keys(%status)) {      next if (!$submitted && ($submitonly eq 'yes' ||
  next if (/^resource.*?submitted_by$/);       $submitonly eq 'incorrect' ||
  $result.='<td align="middle">&nbsp;'.$status{$_}.'&nbsp;</td>'."\n";       $submitonly eq 'graded'));
       next if (!$graded && ($submitonly eq 'graded'));
       next if (!$incorrect && $submitonly eq 'incorrect');
    }
   
    $ctr++;
    my $section = $classlist->{$student}->[&Apache::loncoursedata::CL_SECTION()];
   
    if ( $perm{'vgr'} eq 'F' ) {
       $gradeTable.='<tr bgcolor="#ffffe6">' if ($ctr%2 ==1);
       $gradeTable.='<td align="right">'.$ctr.'&nbsp;</td>'.
                  '<td align="center"><label><input type=checkbox name="stuinfo" value="'.
                  $student.':'.$$fullname{$student}.':::SECTION'.$section.
          ')&nbsp;" />&nbsp;&nbsp;</label></td>'."\n".'<td>'.
          &nameUserString(undef,$$fullname{$student},$uname,$udom).
          '&nbsp;'.$section.'</td>'."\n";
   
       if ($env{'form.showgrading'} eq 'yes' && $submitonly ne 'all') {
    foreach (sort keys(%status)) {
       next if (/^resource.*?submitted_by$/);
       $gradeTable.='<td align="middle">&nbsp;'.$status{$_}.'&nbsp;</td>'."\n";
    }
     }      }
     $request->print($result.'</tr>'."\n");  #    $gradeTable.='<td></td>' if ($ctr%2 ==1);
       $gradeTable.='</tr>'."\n" if ($ctr%2 ==0);
  }   }
     }      }
     $request->print('</table></td></tr></table>');      if ($ctr%2 ==1) {
     $request->print('<input type="submit" name="submit" value="View/Grade" /><form />');   $gradeTable.='<td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td>';
       if ($env{'form.showgrading'} eq 'yes' && $submitonly ne 'all') {
    foreach (@$partlist) {
       $gradeTable.='<td>&nbsp;</td>';
    }
       }
    $gradeTable.='</tr>';
       }
   
       $gradeTable.='</table></td></tr></table>'."\n".
    '<input type="button" '.
    'onClick="javascript:checkSelect(this.form.stuinfo);" '.
    'value="Next->" /></form>'."\n";
       if ($ctr == 0) {
    my $num_students=(scalar(keys(%$fullname)));
    if ($num_students eq 0) {
       $gradeTable='<br />&nbsp;<font color="red">There are no students currently enrolled.</font>';
    } else {
       my $submissions='submissions';
       if ($submitonly eq 'incorrect') { $submissions = 'incorrect submissions'; }
       if ($submitonly eq 'graded'   ) { $submissions = 'ungraded submissions'; }
       $gradeTable='<br />&nbsp;<font color="red">'.
    'No '.$submissions.' found for this resource for any students. ('.$num_students.
    ' students checked for '.$submissions.')</font><br />';
    }
       } elsif ($ctr == 1) {
    $gradeTable =~ s/type=checkbox/type=checkbox checked/;
       }
       $gradeTable.=&show_grading_menu_form($symb,$url);
       $request->print($gradeTable);
       return '';
 }  }
   
   #---- Called from the listStudents routine
   
   sub check_script {
       my ($form, $type)=@_;
       my $chkallscript='<script type="text/javascript">
       function checkall() {
           for (i=0; i<document.forms.'.$form.'.elements.length; i++) {
               ele = document.forms.'.$form.'.elements[i];
               if (ele.name == "'.$type.'") {
               document.forms.'.$form.'.elements[i].checked=true;
                                          }
           }
       }
   
       function checksec() {
           for (i=0; i<document.forms.'.$form.'.elements.length; i++) {
               ele = document.forms.'.$form.'.elements[i];
              string = document.forms.'.$form.'.chksec.value;
              if
             (ele.value.indexOf(":::SECTION"+string)>0) {
                 document.forms.'.$form.'.elements[i].checked=true;
               }
           }
       }
   
   
       function uncheckall() {
           for (i=0; i<document.forms.'.$form.'.elements.length; i++) {
               ele = document.forms.'.$form.'.elements[i];
               if (ele.name == "'.$type.'") {
               document.forms.'.$form.'.elements[i].checked=false;
                                          }
           }
       }
   
   </script>'."\n";
       return $chkallscript;
   }
   
   sub check_buttons {
       my $buttons.='<input type="button" onclick="checkall()" value="Check All" />';
       $buttons.='<input type="button" onclick="uncheckall()" value="Uncheck All" />&nbsp;';
       $buttons.='<input type="button" onclick="checksec()" value="Check Section/Group" />';
       $buttons.='<input type="text" size="5" name="chksec" />&nbsp;';
       return $buttons;
   }
   
   #     Displays the submissions for one student or a group of students
 sub processGroup {  sub processGroup {
     my ($request)  = shift;      my ($request)  = shift;
     my $ctr        = 0;      my $ctr        = 0;
     my @stuchecked = (ref($ENV{'form.stuinfo'}) ? @{$ENV{'form.stuinfo'}}      my @stuchecked = &Apache::loncommon::get_env_multiple('form.stuinfo');
       : ($ENV{'form.stuinfo'}));  
     my $total      = scalar(@stuchecked)-1;      my $total      = scalar(@stuchecked)-1;
     if ($stuchecked[0] eq '') {  
  &userError($request,'No student was selected for viewing/grading.');  
  return;  
     }  
     foreach (@stuchecked) {      foreach (@stuchecked) {
  my ($uname,$udom,$fullname) = split(/:/);   my ($uname,$udom,$fullname) = split(/:/);
  $ENV{'form.student'} = $uname;   $env{'form.student'}        = $uname;
  $ENV{'form.fullname'} = $fullname;   $env{'form.userdom'}        = $udom;
    $env{'form.fullname'}       = $fullname;
  &submission($request,$ctr,$total);   &submission($request,$ctr,$total);
  $ctr++;   $ctr++;
     }      }
     return '';      return '';
 }  }
   
 sub userError {  #------------------------------------------------------------------------------------
     my ($request, $reason, $step) = @_;  #
     $request->print('<h3><font color="red">LON-CAPA User Error</font></h3><br />'."\n");  #-------------------------- Next few routines handles grading by student, essentially
     $request->print('<b>Reason: </b>'.$reason.'<br /><br />'."\n");  #                           handles essay response type problem/part
     $request->print('<b>Step: </b>'.($step ne '' ? $step : 'Use your browser back button to correct')  #
     .'<br /><br />'."\n");  #--- Javascript to handle the submission page functionality ---
     return '';  sub sub_page_js {
 }      my $request = shift;
       $request->print(<<SUBJAVASCRIPT);
   <script type="text/javascript" language="javascript">
       function updateRadio(formname,id,weight) {
    var gradeBox = formname["GD_BOX"+id];
    var radioButton = formname["RADVAL"+id];
    var oldpts = formname["oldpts"+id].value;
    var pts = checkSolved(formname,id) == 'update' ? gradeBox.value : oldpts;
    gradeBox.value = pts;
    var resetbox = false;
    if (isNaN(pts) || pts < 0) {
       alert("A number equal or greater than 0 is expected. Entered value = "+pts);
       for (var i=0; i<radioButton.length; i++) {
    if (radioButton[i].checked) {
       gradeBox.value = i;
       resetbox = true;
    }
       }
       if (!resetbox) {
    formtextbox.value = "";
       }
       return;
    }
   
 #FIXME - needs to handle multiple matches   if (pts > weight) {
 sub finduser {      var resp = confirm("You entered a value ("+pts+
     my ($name) = @_;         ") greater than the weight for the part. Accept?");
     my $domain = '';      if (resp == false) {
     if ( $Apache::grades::viewgrades eq 'F' ) {   gradeBox.value = oldpts;
  my ($classlist) = &getclasslist('all','0');   return;
  foreach ( sort(@{ $$classlist{'all'} }) ) {      }
     my ($posname,$posdomain) = split(/:/);  
     if ($posname =~ $name) { $name=$posname; $domain=$posdomain; last; }  
  }   }
  return ($name,$domain);  
     } else {   for (var i=0; i<radioButton.length; i++) {
  return ($ENV{'user.name'},$ENV{'user.domain'});      radioButton[i].checked=false;
       if (pts == i && pts != "") {
    radioButton[i].checked=true;
       }
    }
    updateSelect(formname,id);
    formname["stores"+id].value = "0";
     }      }
 }  
   
 sub getclasslist {      function writeBox(formname,id,pts) {
     my ($getsec,$hideexpired) = @_;   var gradeBox = formname["GD_BOX"+id];
     my $now = time;   if (checkSolved(formname,id) == 'update') {
     my %classlist=&Apache::lonnet::dump('classlist',      gradeBox.value = pts;
  $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},   } else {
  $ENV{'course.'.$ENV{'request.course.id'}.'.num'});      var oldpts = formname["oldpts"+id].value;
     my (@holdsec,@sections,%allids,%stusec,%fullname);      gradeBox.value = oldpts;
     foreach (keys(%classlist)) {      var radioButton = formname["RADVAL"+id];
  my ($end,$start,$id,$section,$fullname)=split(/:/,$classlist{$_});      for (var i=0; i<radioButton.length; i++) {
        # still a student?   radioButton[i].checked=false;
  if (($hideexpired) && ($end) && ($end < $now)) {   if (i == oldpts) {
     next;      radioButton[i].checked=true;
    }
       }
  }   }
  $section = ($section ne '' ? $section : 'no');   formname["stores"+id].value = "0";
  push @holdsec,$section;   updateSelect(formname,id);
  if ($getsec eq 'all' || $getsec eq $section) {   return;
     push (@{ $classlist{$getsec} }, $_);      }
     $allids{$_}=$id;  
     $stusec{$_}=$section;      function clearRadBox(formname,id) {
     $fullname{$_}=$fullname;   if (checkSolved(formname,id) == 'noupdate') {
       updateSelect(formname,id);
       return;
    }
    gradeSelect = formname["GD_SEL"+id];
    for (var i=0; i<gradeSelect.length; i++) {
       if (gradeSelect[i].selected) {
    var selectx=i;
       }
  }   }
    var stores = formname["stores"+id];
    if (selectx == stores.value) { return };
    var gradeBox = formname["GD_BOX"+id];
    gradeBox.value = "";
    var radioButton = formname["RADVAL"+id];
    for (var i=0; i<radioButton.length; i++) {
       radioButton[i].checked=false;
    }
    stores.value = selectx;
     }      }
     my %seen = ();  
     foreach my $item (@holdsec) {      function checkSolved(formname,id) {
  push (@sections, $item) unless $seen{$item}++;   if (formname["solved"+id].value == "correct_by_student" && formname.overRideScore.value == 'no') {
       var reply = confirm("This problem has been graded correct by the computer. Do you want to change the score?");
       if (!reply) {return "noupdate";}
       formname.overRideScore.value = 'yes';
    }
    return "update";
     }      }
     return (\%classlist,\@sections,\%allids,\%stusec,\%fullname);  
 }  
   
 sub getpartlist {      function updateSelect(formname,id) {
     my ($url) = @_;   formname["GD_SEL"+id][0].selected = true;
     my @parts =();   return;
     my (@metakeys) = split(/,/,&Apache::lonnet::metadata($url,'keys'));      }
     foreach my $key (@metakeys) {  
  if ( $key =~ m/stores_([0-9]+)_.*/) {  //=========== Check that a point is assigned for all the parts  ============
     push(@parts,$key);      function checksubmit(formname,val,total,parttot) {
    formname.gradeOpt.value = val;
    if (val == "Save & Next") {
       for (i=0;i<=total;i++) {
    for (j=0;j<parttot;j++) {
       var partid = formname["partid"+i+"_"+j].value;
       if (formname["GD_SEL"+i+"_"+partid][0].selected) {
    var points = formname["GD_BOX"+i+"_"+partid].value;
    if (points == "") {
       var name = formname["name"+i].value;
       var studentID = (name != '' ? name : formname["unamedom"+i].value);
       var resp = confirm("You did not assign a score for "+studentID+
          ", part "+partid+". Continue?");
       if (resp == false) {
    formname["GD_BOX"+i+"_"+partid].focus();
    return false;
       }
    }
       }
       
    }
       }
       
  }   }
    if (val == "Grade Student") {
       formname.showgrading.value = "yes";
       if (formname.Status.value == "") {
    formname.Status.value = "Active";
       }
       formname.studentNo.value = total;
    }
    formname.submit();
     }      }
     return @parts;  
   //======= Check that a score is assigned for all the problems (page/sequence grading only) =========
       function checkSubmitPage(formname,total) {
    noscore = new Array(100);
    var ptr = 0;
    for (i=1;i<total;i++) {
       var partid = formname["q_"+i].value;
       if (formname["GD_SEL"+i+"_"+partid][0].selected) {
    var points = formname["GD_BOX"+i+"_"+partid].value;
    var status = formname["solved"+i+"_"+partid].value;
    if (points == "" && status != "correct_by_student") {
       noscore[ptr] = i;
       ptr++;
    }
       }
    }
    if (ptr != 0) {
       var sense = ptr == 1 ? ": " : "s: ";
       var prolist = "";
       if (ptr == 1) {
    prolist = noscore[0];
       } else {
    var i = 0;
    while (i < ptr-1) {
       prolist += noscore[i]+", ";
       i++;
    }
    prolist += "and "+noscore[i];
       }
       var resp = confirm("You did not assign any score for the following problem"+sense+prolist+". Continue?");
       if (resp == false) {
    return false;
       }
    }
   
    formname.submit();
       }
   </script>
   SUBJAVASCRIPT
 }  }
   
 sub print_hash {  #--- javascript for essay type problem --
     my ($request, $hash) = @_;  sub sub_page_kw_js {
     $request->print('<table border=1><tr><td>Key</td><td>Value</td></tr>');      my $request = shift;
     for (sort keys (%$hash)) {      my $iconpath = $request->dir_config('lonIconsURL');
  $request->print('<tr><td>'.$_.'</td><td>'.$$hash{$_}.'&nbsp;</td></tr>');      &commonJSfunctions($request);
       my $docopen=&Apache::lonhtmlcommon::javascript_docopen();
       $docopen=~s/^document\.//;
       $request->print(<<SUBJAVASCRIPT);
   <script type="text/javascript" language="javascript">
   
   //===================== Show list of keywords ====================
     function keywords(formname) {
       var nret = prompt("Keywords list, separated by a space. Add/delete to list if desired.",formname.keywords.value);
       if (nret==null) return;
       formname.keywords.value = nret;
   
       if (formname.keywords.value != "") {
    formname.refresh.value = "on";
    formname.submit();
     }      }
     $request->print('</table>');      return;
     return '';    }
   
   //===================== Script to view submitted by ==================
     function viewSubmitter(submitter) {
       document.SCORE.refresh.value = "on";
       document.SCORE.NCT.value = "1";
       document.SCORE.unamedom0.value = submitter;
       document.SCORE.submit();
       return;
     }
   
   //===================== Script to add keyword(s) ==================
     function getSel() {
       if (document.getSelection) txt = document.getSelection();
       else if (document.selection) txt = document.selection.createRange().text;
       else return;
       var cleantxt = txt.replace(new RegExp('([\\f\\n\\r\\t\\v ])+', 'g')," ");
       if (cleantxt=="") {
    alert("Please select a word or group of words from document and then click this link.");
    return;
       }
       var nret = prompt("Add selection to keyword list? Edit if desired.",cleantxt);
       if (nret==null) return;
       document.SCORE.keywords.value = document.SCORE.keywords.value+" "+nret;
       if (document.SCORE.keywords.value != "") {
    document.SCORE.refresh.value = "on";
    document.SCORE.submit();
       }
       return;
     }
   
   //====================== Script for composing message ==============
      // preload images
      img1 = new Image();
      img1.src = "$iconpath/mailbkgrd.gif";
      img2 = new Image();
      img2.src = "$iconpath/mailto.gif";
   
     function msgCenter(msgform,usrctr,fullname) {
       var Nmsg  = msgform.savemsgN.value;
       savedMsgHeader(Nmsg,usrctr,fullname);
       var subject = msgform.msgsub.value;
       var msgchk = document.SCORE["includemsg"+usrctr].value;
       re = /msgsub/;
       var shwsel = "";
       if (re.test(msgchk)) { shwsel = "checked" }
       subject = (document.SCORE.shownSub.value == 0 ? checkEntities(subject) : subject);
       displaySubject(checkEntities(subject),shwsel);
       for (var i=1; i<=Nmsg; i++) {
    var testmsg = "savemsg"+i+",";
    re = new RegExp(testmsg,"g");
    shwsel = "";
    if (re.test(msgchk)) { shwsel = "checked" }
    var message = document.SCORE["savemsg"+i].value;
    message = (document.SCORE["shownOnce"+i].value == 0 ? checkEntities(message) : message);
    displaySavedMsg(i,message,shwsel); //I do not get it. w/o checkEntities on saved messages,
                                      //any &lt; is already converted to <, etc. However, only once!!
       }
       newmsg = document.SCORE["newmsg"+usrctr].value;
       shwsel = "";
       re = /newmsg/;
       if (re.test(msgchk)) { shwsel = "checked" }
       newMsg(newmsg,shwsel);
       msgTail(); 
       return;
     }
   
     function checkEntities(strx) {
       if (strx.length == 0) return strx;
       var orgStr = ["&", "<", ">", '"']; 
       var newStr = ["&amp;", "&lt;", "&gt;", "&quot;"];
       var counter = 0;
       while (counter < 4) {
    strx = strReplace(strx,orgStr[counter],newStr[counter]);
    counter++;
       }
       return strx;
     }
   
     function strReplace(strx, orgStr, newStr) {
       return strx.split(orgStr).join(newStr);
     }
   
     function savedMsgHeader(Nmsg,usrctr,fullname) {
       var height = 70*Nmsg+250;
       var scrollbar = "no";
       if (height > 600) {
    height = 600;
    scrollbar = "yes";
       }
       var xpos = (screen.width-600)/2;
       xpos = (xpos < 0) ? '0' : xpos;
       var ypos = (screen.height-height)/2-30;
       ypos = (ypos < 0) ? '0' : ypos;
   
       pWin = window.open('', 'MessageCenter', 'resizable=yes,toolbar=no,location=no,scrollbars='+scrollbar+',screenx='+xpos+',screeny='+ypos+',width=600,height='+height);
       pWin.focus();
       pDoc = pWin.document;
       pDoc.$docopen;
       pDoc.write("<html><head>");
       pDoc.write("<title>Message Central</title>");
   
       pDoc.write("<script language=javascript>");
       pDoc.write("function checkInput() {");
       pDoc.write("  opener.document.SCORE.msgsub.value = opener.checkEntities(document.msgcenter.msgsub.value);");
       pDoc.write("  var nmsg   = opener.document.SCORE.savemsgN.value;");
       pDoc.write("  var usrctr = document.msgcenter.usrctr.value;");
       pDoc.write("  var newval = opener.document.SCORE[\\"newmsg\\"+usrctr];");
       pDoc.write("  newval.value = opener.checkEntities(document.msgcenter.newmsg.value);");
   
       pDoc.write("  var msgchk = \\"\\";");
       pDoc.write("  if (document.msgcenter.subchk.checked) {");
       pDoc.write("     msgchk = \\"msgsub,\\";");
       pDoc.write("  }");
       pDoc.write("  var includemsg = 0;");
       pDoc.write("  for (var i=1; i<=nmsg; i++) {");
       pDoc.write("      var opnmsg = opener.document.SCORE[\\"savemsg\\"+i];");
       pDoc.write("      var frmmsg = document.msgcenter[\\"msg\\"+i];");
       pDoc.write("      opnmsg.value = opener.checkEntities(frmmsg.value);");
       pDoc.write("      var showflg = opener.document.SCORE[\\"shownOnce\\"+i];");
       pDoc.write("      showflg.value = \\"1\\";");
       pDoc.write("      var chkbox = document.msgcenter[\\"msgn\\"+i];");
       pDoc.write("      if (chkbox.checked) {");
       pDoc.write("         msgchk += \\"savemsg\\"+i+\\",\\";");
       pDoc.write("         includemsg = 1;");
       pDoc.write("      }");
       pDoc.write("  }");
       pDoc.write("  if (document.msgcenter.newmsgchk.checked) {");
       pDoc.write("     msgchk += \\"newmsg\\"+usrctr;");
       pDoc.write("     includemsg = 1;");
       pDoc.write("  }");
       pDoc.write("  imgformname = opener.document.SCORE[\\"mailicon\\"+usrctr];");
       pDoc.write("  imgformname.src = \\"$iconpath/\\"+((includemsg) ? \\"mailto.gif\\" : \\"mailbkgrd.gif\\");");
       pDoc.write("  var includemsg = opener.document.SCORE[\\"includemsg\\"+usrctr];");
       pDoc.write("  includemsg.value = msgchk;");
   
       pDoc.write("  self.close()");
   
       pDoc.write("}");
   
       pDoc.write("<");
       pDoc.write("/script>");
   
       pDoc.write("</head><body bgcolor=white>");
   
       pDoc.write("<form action=\\"inactive\\" name=\\"msgcenter\\">");
       pDoc.write("<input value=\\""+usrctr+"\\" name=\\"usrctr\\" type=\\"hidden\\">");
       pDoc.write("<font color=\\"green\\" size=+1>&nbsp;Compose Message for \"+fullname+\"</font><br><br>");
   
       pDoc.write("<table border=0 width=100%><tr><td bgcolor=\\"#777777\\">");
       pDoc.write("<table border=0 width=100%><tr bgcolor=\\"#ddffff\\">");
       pDoc.write("<td><b>Type</b></td><td><b>Include</b></td><td><b>Message</td></tr>");
 }  }
 #      function displaySubject(msg,shwsel) {
 # --------------------------- show submissions of a student, option to grade --------      pDoc = pWin.document;
       pDoc.write("<tr bgcolor=\\"#ffffdd\\">");
       pDoc.write("<td>Subject</td>");
       pDoc.write("<td align=\\"center\\"><input name=\\"subchk\\" type=\\"checkbox\\"" +shwsel+"></td>");
       pDoc.write("<td><input name=\\"msgsub\\" type=\\"text\\" value=\\""+msg+"\\"size=\\"60\\" maxlength=\\"80\\"></td></tr>");
   }
   
     function displaySavedMsg(ctr,msg,shwsel) {
       pDoc = pWin.document;
       pDoc.write("<tr bgcolor=\\"#ffffdd\\">");
       pDoc.write("<td align=\\"center\\">"+ctr+"</td>");
       pDoc.write("<td align=\\"center\\"><input name=\\"msgn"+ctr+"\\" type=\\"checkbox\\"" +shwsel+"></td>");
       pDoc.write("<td><textarea name=\\"msg"+ctr+"\\" cols=\\"60\\" rows=\\"3\\">"+msg+"</textarea></td></tr>");
   }
   
     function newMsg(newmsg,shwsel) {
       pDoc = pWin.document;
       pDoc.write("<tr bgcolor=\\"#ffffdd\\">");
       pDoc.write("<td align=\\"center\\">New</td>");
       pDoc.write("<td align=\\"center\\"><input name=\\"newmsgchk\\" type=\\"checkbox\\"" +shwsel+"></td>");
       pDoc.write("<td><textarea name=\\"newmsg\\" cols=\\"60\\" rows=\\"3\\" onchange=\\"javascript:this.form.newmsgchk.checked=true\\" >"+newmsg+"</textarea></td></tr>");
   }
   
     function msgTail() {
       pDoc = pWin.document;
       pDoc.write("</table>");
       pDoc.write("</td></tr></table>&nbsp;");
       pDoc.write("<input type=\\"button\\" value=\\"Save\\" onClick=\\"javascript:checkInput()\\">&nbsp;&nbsp;");
       pDoc.write("<input type=\\"button\\" value=\\"Cancel\\" onClick=\\"self.close()\\"><br><br>");
       pDoc.write("</form>");
       pDoc.write("</body></html>");
       pDoc.close();
   }
   
   //====================== Script for keyword highlight options ==============
     function kwhighlight() {
       var kwclr    = document.SCORE.kwclr.value;
       var kwsize   = document.SCORE.kwsize.value;
       var kwstyle  = document.SCORE.kwstyle.value;
       var redsel = "";
       var grnsel = "";
       var blusel = "";
       if (kwclr=="red")   {var redsel="checked"};
       if (kwclr=="green") {var grnsel="checked"};
       if (kwclr=="blue")  {var blusel="checked"};
       var sznsel = "";
       var sz1sel = "";
       var sz2sel = "";
       if (kwsize=="0")  {var sznsel="checked"};
       if (kwsize=="+1") {var sz1sel="checked"};
       if (kwsize=="+2") {var sz2sel="checked"};
       var synsel = "";
       var syisel = "";
       var sybsel = "";
       if (kwstyle=="")    {var synsel="checked"};
       if (kwstyle=="<i>") {var syisel="checked"};
       if (kwstyle=="<b>") {var sybsel="checked"};
       highlightCentral();
       highlightbody('red','red',redsel,'0','normal',sznsel,'','normal',synsel);
       highlightbody('green','green',grnsel,'+1','+1',sz1sel,'<i>','italic',syisel);
       highlightbody('blue','blue',blusel,'+2','+2',sz2sel,'<b>','bold',sybsel);
       highlightend();
       return;
     }
   
     function highlightCentral() {
   //    if (window.hwdWin) window.hwdWin.close();
       var xpos = (screen.width-400)/2;
       xpos = (xpos < 0) ? '0' : xpos;
       var ypos = (screen.height-330)/2-30;
       ypos = (ypos < 0) ? '0' : ypos;
   
       hwdWin = window.open('', 'KeywordHighlightCentral', 'resizeable=yes,toolbar=no,location=no,scrollbars=no,width=400,height=300,screenx='+xpos+',screeny='+ypos);
       hwdWin.focus();
       var hDoc = hwdWin.document;
       hDoc.$docopen;
       hDoc.write("<html><head>");
       hDoc.write("<title>Highlight Central</title>");
   
       hDoc.write("<script language=javascript>");
       hDoc.write("function updateChoice(flag) {");
       hDoc.write("  opener.document.SCORE.kwclr.value = opener.radioSelection(document.hlCenter.kwdclr);");
       hDoc.write("  opener.document.SCORE.kwsize.value = opener.radioSelection(document.hlCenter.kwdsize);");
       hDoc.write("  opener.document.SCORE.kwstyle.value = opener.radioSelection(document.hlCenter.kwdstyle);");
       hDoc.write("  opener.document.SCORE.refresh.value = \\"on\\";");
       hDoc.write("  if (opener.document.SCORE.keywords.value!=\\"\\"){");
       hDoc.write("     opener.document.SCORE.submit();");
       hDoc.write("  }");
       hDoc.write("  self.close()");
       hDoc.write("}");
   
       hDoc.write("<");
       hDoc.write("/script>");
   
       hDoc.write("</head><body bgcolor=white>");
   
       hDoc.write("<form action=\\"inactive\\" name=\\"hlCenter\\">");
       hDoc.write("<font color=\\"green\\" size=+1>&nbsp;Keyword Highlight Options</font><br><br>");
   
       hDoc.write("<table border=0 width=100%><tr><td bgcolor=\\"#777777\\">");
       hDoc.write("<table border=0 width=100%><tr bgcolor=\\"#ddffff\\">");
       hDoc.write("<td><b>Text Color</b></td><td><b>Font Size</b></td><td><b>Font Style</td></tr>");
     }
   
     function highlightbody(clrval,clrtxt,clrsel,szval,sztxt,szsel,syval,sytxt,sysel) { 
       var hDoc = hwdWin.document;
       hDoc.write("<tr bgcolor=\\"#ffffdd\\">");
       hDoc.write("<td align=\\"left\\">");
       hDoc.write("<input name=\\"kwdclr\\" type=\\"radio\\" value=\\""+clrval+"\\" "+clrsel+">&nbsp;"+clrtxt+"</td>");
       hDoc.write("<td align=\\"left\\">");
       hDoc.write("<input name=\\"kwdsize\\" type=\\"radio\\" value=\\""+szval+"\\" "+szsel+">&nbsp;"+sztxt+"</td>");
       hDoc.write("<td align=\\"left\\">");
       hDoc.write("<input name=\\"kwdstyle\\" type=\\"radio\\" value=\\""+syval+"\\" "+sysel+">&nbsp;"+sytxt+"</td>");
       hDoc.write("</tr>");
     }
   
     function highlightend() { 
       var hDoc = hwdWin.document;
       hDoc.write("</table>");
       hDoc.write("</td></tr></table>&nbsp;");
       hDoc.write("<input type=\\"button\\" value=\\"Save\\" onClick=\\"javascript:updateChoice(1)\\">&nbsp;&nbsp;");
       hDoc.write("<input type=\\"button\\" value=\\"Cancel\\" onClick=\\"self.close()\\"><br><br>");
       hDoc.write("</form>");
       hDoc.write("</body></html>");
       hDoc.close();
     }
   
   </script>
   SUBJAVASCRIPT
   }
   
   #--- displays the grading box, used in essay type problem and grading by page/sequence
   sub gradeBox {
       my ($request,$symb,$uname,$udom,$counter,$partid,$record) = @_;
   
       my $checkIcon = '<img src="'.$request->dir_config('lonIconsURL').
    '/check.gif" height="16" border="0" />';
   
       my $wgt    = &Apache::lonnet::EXT('resource.'.$partid.'.weight',$symb,$udom,$uname);
       my $wgtmsg = ($wgt > 0 ? '(problem weight)' : 
     '<font color="red">problem weight assigned by computer</font>');
       $wgt       = ($wgt > 0 ? $wgt : '1');
       my $score  = ($$record{'resource.'.$partid.'.awarded'} eq '' ?
     '' : $$record{'resource.'.$partid.'.awarded'}*$wgt);
       my $result='<input type="hidden" name="WGT'.$counter.'_'.$partid.'" value="'.$wgt.'" />'."\n";
   
       my $display_part=&get_display_part($partid,undef,$symb);
   
       my %last_resets = &get_last_resets($symb,$env{'request.course.id'},
          [$partid]);
       my $aggtries = $$record{'resource.'.$partid.'.tries'};
       if ($last_resets{$partid}) {
           $aggtries = &get_num_tries($record,$last_resets{$partid},$partid);
       }
   
       $result.='<table border="0"><tr><td>'.
    '<b>Part: </b>'.$display_part.' <b>Points: </b></td><td>'."\n";
   
       my $ctr = 0;
       $result.='<table border="0"><tr>'."\n";  # display radio buttons in a nice table 10 across
       while ($ctr<=$wgt) {
    $result.= '<td><nobr><input type="radio" name="RADVAL'.$counter.'_'.$partid.'" '.
       'onclick="javascript:writeBox(this.form,\''.$counter.'_'.$partid.'\','.
       $ctr.')" value="'.$ctr.'" '.
       ($score eq $ctr ? 'checked':'').' /> '.$ctr."</nobr></td>\n";
    $result.=(($ctr+1)%10 == 0 ? '</tr><tr>' : '');
    $ctr++;
       }
       $result.='</tr></table>';
   
       $result.='</td><td>&nbsp;<b>or</b>&nbsp;</td>'."\n";
       $result.='<td><input type="text" name="GD_BOX'.$counter.'_'.$partid.'"'.
    ($score ne ''? ' value = "'.$score.'"':'').' size="4" '.
    'onChange="javascript:updateRadio(this.form,\''.$counter.'_'.$partid.'\','.
    $wgt.')" /></td>'."\n";
       $result.='<td>/'.$wgt.' '.$wgtmsg.
    ($$record{'resource.'.$partid.'.solved'} eq 'correct_by_student' ? '&nbsp;'.$checkIcon : '').
    ' </td><td>'."\n";
   
       $result.='<select name="GD_SEL'.$counter.'_'.$partid.'" '.
    'onChange="javascript:clearRadBox(this.form,\''.$counter.'_'.$partid.'\')" >'."\n";
       if ($$record{'resource.'.$partid.'.solved'} eq 'excused') {
    $result.='<option> </option>'.
       '<option selected="on">excused</option>';
       } else {
    $result.='<option selected="on"> </option>'.
       '<option>excused</option>';
       }
       $result.='<option>reset status</option></select>'."\n";
       $result.="&nbsp&nbsp\n";
       $result.='<input type="hidden" name="stores'.$counter.'_'.$partid.'" value="" />'."\n".
    '<input type="hidden" name="oldpts'.$counter.'_'.$partid.'" value="'.$score.'" />'."\n".
    '<input type="hidden" name="solved'.$counter.'_'.$partid.'" value="'.
    $$record{'resource.'.$partid.'.solved'}.'" />'."\n".
           '<input type="hidden" name="totaltries'.$counter.'_'.$partid.'" value="'.
           $$record{'resource.'.$partid.'.tries'}.'" />'."\n".
           '<input type="hidden" name="aggtries'.$counter.'_'.$partid.'" value="'.
           $aggtries.'" />'."\n";
       $result.='</td></tr></table>'."\n";
       return $result;
   }
   
   sub show_problem {
       my ($request,$symb,$uname,$udom,$removeform,$viewon,$mode) = @_;
       my $rendered;
       if ($mode eq 'both' or $mode eq 'text') {
    $rendered=&Apache::loncommon::get_student_view($symb,$uname,$udom,
        $env{'request.course.id'});
       }
       if ($removeform) {
    $rendered=~s|<form(.*?)>||g;
    $rendered=~s|</form>||g;
    $rendered=~s|name="submit"|name="would_have_been_submit"|g;
       }
       my $companswer;
       if ($mode eq 'both' or $mode eq 'answer') {
    $companswer=&Apache::loncommon::get_student_answers($symb,$uname,$udom,
       $env{'request.course.id'});
       }
       if ($removeform) {
    $companswer=~s|<form(.*?)>||g;
    $companswer=~s|</form>||g;
    $companswer=~s|name="submit"|name="would_have_been_submit"|g;
       }
       my $result.='<table border="0" width="100%"><tr><td bgcolor="#777777">';
       $result.='<table border="0" width="100%">';
       if ($viewon) {
    $result.='<tr><td bgcolor="#e6ffff"><b> ';
    if ($mode eq 'both' or $mode eq 'text') {
       $result.='View of the problem - ';
    } else {
       $result.='Correct answer: ';
    }
    $result.=$env{'form.fullname'}.'</b></td></tr>';
       }
       if ($mode eq 'both') {
    $result.='<tr><td bgcolor="#ffffff">'.$rendered.'<br />';
    $result.='<b>Correct answer:</b><br />'.$companswer;
       } elsif ($mode eq 'text') {
    $result.='<tr><td bgcolor="#ffffff">'.$rendered;
       } elsif ($mode eq 'answer') {
    $result.='<tr><td bgcolor="#ffffff">'.$companswer;
       }
       $result.='</td></tr></table>';
       $result.='</td></tr></table><br />';
       return $result;
   }
   
   # --------------------------- show submissions of a student, option to grade 
 sub submission {  sub submission {
     my ($request,$counter,$total) = @_;      my ($request,$counter,$total) = @_;
   
     (my $url=$ENV{'form.url'})=~s-^http://($ENV{'SERVER_NAME'}|$ENV{'HTTP_HOST'})--;      (my $url=$env{'form.url'})=~s-^http://($ENV{'SERVER_NAME'}|$ENV{'HTTP_HOST'})--;
     if ($ENV{'form.student'} eq '') { &moreinfo($request,'Need student login id'); return ''; }      my ($uname,$udom)     = ($env{'form.student'},$env{'form.userdom'});
     my ($uname,$udom) = &finduser($ENV{'form.student'});      $udom = ($udom eq '' ? $env{'user.domain'} : $udom); #has form.userdom changed for a student?
     if ($uname eq '') { &moreinfo($request,'Unable to find student'); return ''; }      my $usec = &Apache::lonnet::getsection($udom,$uname,$env{'request.course.id'});
       $env{'form.fullname'} = &Apache::loncommon::plainname($uname,$udom,'lastname') if $env{'form.fullname'} eq '';
   
     my $symb=($ENV{'form.symb'} ne '' ? $ENV{'form.symb'} : (&Apache::lonnet::symbread($url)));      my $symb=($env{'form.symb'} ne '' ? $env{'form.symb'} : (&Apache::lonnet::symbread($url)));
     if ($symb eq '') { $request->print("Unable to handle ambiguous references:$url:."); return ''; }      if ($symb eq '') { $request->print("Unable to handle ambiguous references:$url:."); return ''; }
     my $last = ($ENV{'form.lastSub'} eq 'last' ? 'last' : '');  
     $ENV{'form.vProb'} = $ENV{'form.vProb'} ne '' ? $ENV{'form.vProb'} : 'yes';      if (!&canview($usec)) {
     my ($classlist,$seclist,$ids,$stusec,$fullname);   $request->print('<font color="red">Unable to view requested student.('.
    $uname.'@'.$udom.' in section '.$usec.' in course id '.
    $env{'request.course.id'}.')</font>');
    $request->print(&show_grading_menu_form($symb,$url));
    return;
       }
   
       if (!$env{'form.lastSub'}) { $env{'form.lastSub'} = 'datesub'; }
       if (!$env{'form.vProb'}) { $env{'form.vProb'} = 'yes'; }
       if (!$env{'form.vAns'}) { $env{'form.vAns'} = 'yes'; }
       my $last = ($env{'form.lastSub'} eq 'last' ? 'last' : '');
       my $checkIcon = '<img src="'.$request->dir_config('lonIconsURL').
    '/check.gif" height="16" border="0" />';
   
     # header info      # header info
     if ($counter == 0) {      if ($counter == 0) {
  &sub_page_js($request);   &sub_page_js($request);
  $request->print('<h2>&nbsp;<font color="#339933">Submission Record</font></h2>'.   &sub_page_kw_js($request) if ($env{'form.handgrade'} eq 'yes');
  '<font size=+1>&nbsp;<b>Resource: </b>'.$url.'</font>');   $env{'form.probTitle'} = $env{'form.probTitle'} eq '' ? 
       &Apache::lonnet::gettitle($symb) : $env{'form.probTitle'};
  # option to display problem, only once else it cause problems with the form later   
  # since the problem has a form.   $request->print('<h3>&nbsp;<font color="#339933">Submission Record</font></h3>'."\n".
  if ($ENV{'form.vProb'} eq 'yes') {   '<font size=+1>&nbsp;<b>Resource: </b>'.$env{'form.probTitle'}.'</font>'."\n");
     my $rendered=&Apache::loncommon::get_student_view($symb,$uname,$udom,  
       $ENV{'request.course.id'});   if ($env{'form.handgrade'} eq 'no') {
     my $companswer=&Apache::loncommon::get_student_answers($symb,$uname,$udom,      my $checkMark='<br /><br />&nbsp;<b>Note:</b> Part(s) graded correct by the computer is marked with a '.
    $ENV{'request.course.id'});   $checkIcon.' symbol.'."\n";
     my $result.='<table border="0" width="100%"><tr><td bgcolor="#777777">';      $request->print($checkMark);
     $result.='<table border="0" width="100%"><tr><td bgcolor="#e6ffff">';   }
     $result.='<b>Student\'s view of the problem</b></td></tr><tr><td bgcolor="#ffffff">'.$rendered.'<br />';  
     $result.='<b>Correct answer:</b><br />'.$companswer;   # option to display problem, only once else it cause problems 
     $result.='</td></tr></table>';          # with the form later since the problem has a form.
     $result.='</td></tr></table><br />';   if ($env{'form.vProb'} eq 'yes' or $env{'form.vAns'} eq 'yes') {
     $request->print($result);      my $mode;
       if ($env{'form.vProb'} eq 'yes' && $env{'form.vAns'} eq 'yes') {
    $mode='both';
       } elsif ($env{'form.vProb'} eq 'yes') {
    $mode='text';
       } elsif ($env{'form.vAns'} eq 'yes') {
    $mode='answer';
       }
       $request->print(&show_problem($request,$symb,$uname,$udom,0,1,$mode));
  }   }
   
  # kwclr is the only variable that is guaranteed to be non blank if this subroutine has been called once.   # kwclr is the only variable that is guaranteed to be non blank 
           # if this subroutine has been called once.
  my %keyhash = ();   my %keyhash = ();
  if ($ENV{'form.kwclr'} eq '') {   if ($env{'form.kwclr'} eq '' && $env{'form.handgrade'} eq 'yes') {
     %keyhash = &Apache::lonnet::dump('nohist_handgrade',      %keyhash = &Apache::lonnet::dump('nohist_handgrade',
      $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},       $env{'course.'.$env{'request.course.id'}.'.domain'},
      $ENV{'course.'.$ENV{'request.course.id'}.'.num'});       $env{'course.'.$env{'request.course.id'}.'.num'});
   
     my $loginuser = $ENV{'user.name'}.':'.$ENV{'user.domain'};  
     $ENV{'form.keywords'} = $keyhash{$symb.'_keywords'} ne '' ? $keyhash{$symb.'_keywords'} : '';  
     $ENV{'form.kwclr'}    = $keyhash{$loginuser.'_kwclr'} ne '' ? $keyhash{$loginuser.'_kwclr'} : 'red';  
     $ENV{'form.kwsize'}   = $keyhash{$loginuser.'_kwsize'} ne '' ? $keyhash{$loginuser.'_kwsize'} : '0';  
     $ENV{'form.kwstyle'}  = $keyhash{$loginuser.'_kwstyle'} ne '' ? $keyhash{$loginuser.'_kwstyle'} : '';  
     $ENV{'form.msgsub'}   = $keyhash{$symb.'_subject'} ne '' ?   
  $keyhash{$symb.'_subject'} : &Apache::lonnet::metadata($url,'title');  
     $ENV{'form.savemsgN'} = $keyhash{$symb.'_savemsgN'} ne '' ? $keyhash{$symb.'_savemsgN'} : '0';  
   
       my $loginuser = $env{'user.name'}.':'.$env{'user.domain'};
       $env{'form.keywords'} = $keyhash{$symb.'_keywords'} ne '' ? $keyhash{$symb.'_keywords'} : '';
       $env{'form.kwclr'}    = $keyhash{$loginuser.'_kwclr'} ne '' ? $keyhash{$loginuser.'_kwclr'} : 'red';
       $env{'form.kwsize'}   = $keyhash{$loginuser.'_kwsize'} ne '' ? $keyhash{$loginuser.'_kwsize'} : '0';
       $env{'form.kwstyle'}  = $keyhash{$loginuser.'_kwstyle'} ne '' ? $keyhash{$loginuser.'_kwstyle'} : '';
       $env{'form.msgsub'}   = $keyhash{$symb.'_subject'} ne '' ? 
    $keyhash{$symb.'_subject'} : $env{'form.probTitle'};
       $env{'form.savemsgN'} = $keyhash{$symb.'_savemsgN'} ne '' ? $keyhash{$symb.'_savemsgN'} : '0';
  }   }
    my $overRideScore = $env{'form.overRideScore'} eq '' ? 'no' : $env{'form.overRideScore'};
   
  $request->print('<form action="/adm/grades" method="post" name="SCORE">'."\n".   $request->print('<form action="/adm/grades" method="post" name="SCORE">'."\n".
  '<input type="hidden" name="command"    value="handgrade" />'."\n".   '<input type="hidden" name="command"    value="handgrade" />'."\n".
    '<input type="hidden" name="saveState"  value="'.$env{'form.saveState'}.'" />'."\n".
    '<input type="hidden" name="Status"     value="'.$env{'form.Status'}.'" />'."\n".
    '<input type="hidden" name="overRideScore" value="'.$overRideScore.'" />'."\n".
    '<input type="hidden" name="probTitle"  value="'.$env{'form.probTitle'}.'" />'."\n".
  '<input type="hidden" name="refresh"    value="off" />'."\n".   '<input type="hidden" name="refresh"    value="off" />'."\n".
    '<input type="hidden" name="studentNo"  value="" />'."\n".
    '<input type="hidden" name="gradeOpt"   value="" />'."\n".
  '<input type="hidden" name="symb"       value="'.$symb.'" />'."\n".   '<input type="hidden" name="symb"       value="'.$symb.'" />'."\n".
  '<input type="hidden" name="url"        value="'.$url.'" />'."\n".   '<input type="hidden" name="url"        value="'.$url.'" />'."\n".
  '<input type="hidden" name="showgrading" value="'.$ENV{'form.showgrading'}.'" />'."\n".   '<input type="hidden" name="showgrading" value="'.$env{'form.showgrading'}.'" />'."\n".
  '<input type="hidden" name="vProb"      value="'.$ENV{'form.vProb'}.'" />'."\n".   '<input type="hidden" name="vProb"      value="'.$env{'form.vProb'}.'" />'."\n".
  '<input type="hidden" name="lastSub"    value="'.$ENV{'form.lastSub'}.'" />'."\n".   '<input type="hidden" name="vAns"       value="'.$env{'form.vAns'}.'" />'."\n".
  '<input type="hidden" name="section"    value="'.$ENV{'form.section'}.'">'."\n".   '<input type="hidden" name="lastSub"    value="'.$env{'form.lastSub'}.'" />'."\n".
  '<input type="hidden" name="submitonly" value="'.$ENV{'form.submitonly'}.'">'."\n".   '<input type="hidden" name="section"    value="'.$env{'form.section'}.'">'."\n".
  '<input type="hidden" name="response"   value="'.$ENV{'form.response'}.'">'."\n".   '<input type="hidden" name="submitonly" value="'.$env{'form.submitonly'}.'">'."\n".
  '<input type="hidden" name="handgrade"  value="'.$ENV{'form.handgrade'}.'">'."\n".   '<input type="hidden" name="handgrade"  value="'.$env{'form.handgrade'}.'">'."\n".
  '<input type="hidden" name="keywords"   value="'.$ENV{'form.keywords'}.'" />'."\n".  
  '<input type="hidden" name="kwclr"      value="'.$ENV{'form.kwclr'}.'" />'."\n".  
  '<input type="hidden" name="kwsize"     value="'.$ENV{'form.kwsize'}.'" />'."\n".  
  '<input type="hidden" name="kwstyle"    value="'.$ENV{'form.kwstyle'}.'" />'."\n".  
  '<input type="hidden" name="msgsub"     value="'.$ENV{'form.msgsub'}.'" />'."\n".  
  '<input type="hidden" name="savemsgN"   value="'.$ENV{'form.savemsgN'}.'" />'."\n".  
  '<input type="hidden" name="NCT"'.   '<input type="hidden" name="NCT"'.
  ' value="'.($ENV{'form.NTSTU'} ne '' ? $ENV{'form.NTSTU'} : $total+1).'" />'."\n");   ' value="'.($env{'form.NTSTU'} ne '' ? $env{'form.NTSTU'} : $total+1).'" />'."\n");
    if ($env{'form.handgrade'} eq 'yes') {
       $request->print('<input type="hidden" name="keywords" value="'.$env{'form.keywords'}.'" />'."\n".
       '<input type="hidden" name="kwclr"    value="'.$env{'form.kwclr'}.'" />'."\n".
       '<input type="hidden" name="kwsize"   value="'.$env{'form.kwsize'}.'" />'."\n".
       '<input type="hidden" name="kwstyle"  value="'.$env{'form.kwstyle'}.'" />'."\n".
       '<input type="hidden" name="msgsub"   value="'.$env{'form.msgsub'}.'" />'."\n".
       '<input type="hidden" name="shownSub" value="0" />'."\n".
       '<input type="hidden" name="savemsgN" value="'.$env{'form.savemsgN'}.'" />'."\n");
       foreach my $partid (&Apache::loncommon::get_env_multiple('form.vPart')) {
    $request->print('<input type="hidden" name="vPart" value="'.$partid.'" />'."\n");
       }
    }
   
  my ($cts,$prnmsg) = (1,'');   my ($cts,$prnmsg) = (1,'');
  while ($cts <= $ENV{'form.savemsgN'}) {   while ($cts <= $env{'form.savemsgN'}) {
     $prnmsg.='<input type="hidden" name="savemsg'.$cts.'" value="'.      $prnmsg.='<input type="hidden" name="savemsg'.$cts.'" value="'.
  ($keyhash{$symb.'_savemsg'.$cts} eq '' ? $ENV{'form.savemsg'.$cts} : $keyhash{$symb.'_savemsg'.$cts}).   (!exists($keyhash{$symb.'_savemsg'.$cts}) ? 
  '" />'."\n";   &Apache::lonfeedback::clear_out_html($env{'form.savemsg'.$cts}) :
    &Apache::lonfeedback::clear_out_html($keyhash{$symb.'_savemsg'.$cts})).
    '" />'."\n".
    '<input type="hidden" name="shownOnce'.$cts.'" value="0" />'."\n";
     $cts++;      $cts++;
  }   }
  $request->print($prnmsg);   $request->print($prnmsg);
   
  if ($ENV{'form.handgrade'} eq 'yes' && $ENV{'form.showgrading'} eq 'yes') {   if ($env{'form.handgrade'} eq 'yes' && $env{'form.showgrading'} eq 'yes') {
   #
   # Print out the keyword options line
   #
     $request->print(<<KEYWORDS);      $request->print(<<KEYWORDS);
 &nbsp;<b>Keyword Options:</b>&nbsp;  &nbsp;<b>Keyword Options:</b>&nbsp;
 <a href="javascript:keywords(document.SCORE.keywords)"; TARGET=_self>List</a>&nbsp; &nbsp;  <a href="javascript:keywords(document.SCORE)"; TARGET=_self>List</a>&nbsp; &nbsp;
 <a href="#" onMouseDown="javascript:getSel(); return false"  <a href="#" onMouseDown="javascript:getSel(); return false"
  CLASS="page">Paste Selection to List</a>&nbsp; &nbsp;   CLASS="page">Paste Selection to List</a>&nbsp; &nbsp;
 <a href="javascript:kwhighlight()"; TARGET=_self>Highlight Attribute</a><br /><br />  <a href="javascript:kwhighlight()"; TARGET=_self>Highlight Attribute</a><br /><br />
 KEYWORDS  KEYWORDS
   #
   # Load the other essays for similarity check
   #
               my $essayurl=&Apache::lonnet::declutter($url);
       my ($adom,$aname,$apath)=($essayurl=~/^(\w+)\/(\w+)\/(.*)$/);
       $apath=&Apache::lonnet::escape($apath);
       $apath=~s/\W/\_/gs;
       %oldessays=&Apache::lonnet::dump('nohist_essay_'.$apath,$adom,$aname);
         }          }
     }      }
     my %record = &Apache::lonnet::restore($symb,$ENV{'request.course.id'},$udom,$uname);  
     my ($partlist,$handgrade) = &response_type($url);  
 #    &print_hash($request,\%record);  
   
     # Student info      if ($env{'form.vProb'} eq 'all' or $env{'form.vAns'} eq 'all') {
    $request->print('<br /><br /><br />') if ($counter > 0);
    my $mode;
    if ($env{'form.vProb'} eq 'all' && $env{'form.vAns'} eq 'all') {
       $mode='both';
    } elsif ($env{'form.vProb'} eq 'all' ) {
       $mode='text';
    } elsif ($env{'form.vAns'} eq 'all') {
       $mode='answer';
    }
    $request->print(&show_problem($request,$symb,$uname,$udom,1,1,$mode));
       }
   
       my %record = &Apache::lonnet::restore($symb,$env{'request.course.id'},$udom,$uname);
       my ($partlist,$handgrade,$responseType) = &response_type($url,$symb);
   
       # Display student info
     $request->print(($counter == 0 ? '' : '<br />'));      $request->print(($counter == 0 ? '' : '<br />'));
     my $fullname = ($ENV{'form.fullname'} ne '' ? $ENV{'form.fullname'} : &get_fullname($uname,$udom));      my $result='<table border="0" width=100%><tr><td bgcolor="#777777">'."\n".
     my $result='<table border="0" width=100%><tr><td bgcolor="#777777">'.   '<table border="0" width=100%><tr bgcolor="#edffff"><td>'."\n";
  '<table border="0" width=100%><tr bgcolor="#ffffff"><td>';  
       $result.='<b>Fullname: </b>'.&nameUserString(undef,$env{'form.fullname'},$uname,$udom).'<br />'."\n";
     $result.='<table border="0"><tr bgcolor="#ffffff"><td><b>Fullname: </b>'.$fullname.      $result.='<input type="hidden" name="name'.$counter.
  '</td><td>&nbsp; &nbsp;<b>Username: </b>'.$uname.   '" value="'.$env{'form.fullname'}.'" />'."\n";
  '</td><td>&nbsp; &nbsp;<b>Domain: </b>'.$udom.'</td></tr>';  
     if ($ENV{'form.handgrade'} eq 'yes') {      # If any part of the problem is an essay-response (handgraded), then check for collaborators
  my @col_list;      my @col_fullnames;
  ($classlist,$seclist,$ids,$stusec,$fullname) = &getclasslist('all','0');      my ($classlist,$fullname);
       if ($env{'form.handgrade'} eq 'yes') {
    ($classlist,undef,$fullname) = &getclasslist('all','0');
  for (keys (%$handgrade)) {   for (keys (%$handgrade)) {
     my $ncol = &Apache::lonnet::EXT('resource.'.$_.'.maxcollaborators',$symb,$udom,$uname);      my $ncol = &Apache::lonnet::EXT('resource.'.$_.
     if ($ncol > 0) {      '.maxcollaborators',
  s/\_/\./g;                                              $symb,$udom,$uname);
  if ($record{'resource.'.$_.'.collaborators'} ne '') {      next if ($ncol <= 0);
     my (@collaborators) = split(/,?\s+/,$record{'resource.'.$_.'.collaborators'});              s/\_/\./g;
     my (@badcollaborators);              next if ($record{'resource.'.$_.'.collaborators'} eq '');
     if (scalar(@collaborators) != 0) {              my @goodcollaborators = ();
  $result.='<tr bgcolor="#ffffff"><td colspan=3><b>Collaborators: </b>';              my @badcollaborators  = ();
  foreach my $collaborator (@collaborators) {      foreach (split(/,?\s+/,$record{'resource.'.$_.'.collaborators'})) { 
     $collaborator = $collaborator =~ /\@|:/ ?    $_ =~ s/[\$\^\(\)]//g;
  (split(/@|:/,$collaborator))[0] : $collaborator;   next if ($_ eq '');
     next if ($collaborator eq $uname);   my ($co_name,$co_dom) = split /\@|:/,$_;
     if (!grep /^$collaborator:/i,keys %$classlist) {   $co_dom = $udom if (! defined($co_dom) || $co_dom =~ /^domain$/i);
  push @badcollaborators,$collaborator;   next if ($co_name eq $uname && $co_dom eq $udom);
  next;   # Doing this grep allows 'fuzzy' specification
     }   my @Matches = grep /^$co_name:$co_dom$/i,keys %$classlist;
     push @col_list, $collaborator;   if (! scalar(@Matches)) {
     $result.=$$fullname{$collaborator.':'.$udom}.' ('.$collaborator.') &nbsp; &nbsp;';      push @badcollaborators,$_;
  }   } else {
  $result.='</td></tr>'."\n";      push @goodcollaborators, @Matches;
  $result.='<tr bgcolor="#ffbbbb"><td colspan=2>'.   }
     'This student has submitted '.(scalar (@badcollaborators) > 1 ? '' : 'an').      }
     ' invalid collaborator'.(scalar (@badcollaborators) > 1 ? 's. ' : '. ').              if (scalar(@goodcollaborators) != 0) {
     (join ', ',@badcollaborators).'</td></tr>'                   $result.='<b>Collaborators: </b>';
     if (scalar(@badcollaborators) > 0);                  foreach (@goodcollaborators) {
       my ($lastname,$givenn) = split(/,/,$$fullname{$_});
  $result.='<tr bgcolor="#ffbbbb"><td colspan=2>'.      push @col_fullnames, $givenn.' '.$lastname;
     'This student has submitted too many collaborators. Maximum is '.      $result.=$$fullname{$_}.'&nbsp; &nbsp; &nbsp;';
     $ncol.'.</td></tr>' if (scalar(@collaborators) > $ncol);  
  $result.='<input type="hidden" name="collaborator'.$counter.  
     '" value="'.(join ':',@col_list).'" />'."\n";  
     }  
  }   }
                   $result.='<br />'."\n";
    my ($part)=split(/\./,$_);
    $result.='<input type="hidden" name="collaborator'.$counter.
       '" value="'.$part.':'.(join ':',@goodcollaborators).'" />'.
       "\n";
       }
       if (scalar(@badcollaborators) > 0) {
    $result.='<table border="0"><tr bgcolor="#ffbbbb"><td>';
    $result.='This student has submitted ';
    $result.=(scalar(@badcollaborators) == 1) ? 'an invalid collaborator' : 'invalid collaborators';
    $result .= ': '.join(', ',@badcollaborators);
    $result .= '</td></tr></table>';
       }         
       if (scalar(@badcollaborators > $ncol)) {
    $result .= '<table border="0"><tr bgcolor="#ffbbbb"><td>';
    $result .= 'This student has submitted too many '.
       'collaborators.  Maximum is '.$ncol.'.';
    $result .= '</td></tr></table>';
     }      }
  }   }
     }      }
     $request->print($result.'</table>'."\n");      $request->print($result."\n");
   
     # print student answer      # print student answer/submission
     if ($ENV{'form.lastSub'} =~ /^(lastonly|hdgrade)$/) {      # Options are (1) Handgaded submission only
  if ($ENV{'form.'.$uname.':'.$udom.':submitted_by'}) {      #             (2) Last submission, includes submission that is not handgraded 
     my $submitby='</td></tr><tr><td bgcolor="#e6ffff">'.      #                  (for multi-response type part)
  '<b>Collaborative submission by: </b>'.      #             (3) Last submission plus the parts info
  '<a href="javascript:viewSubmitter(\''.$ENV{'form.'.$uname.':'.$udom.':submitted_by'}.      #             (4) The whole record for this student
  '\')"; TARGET=_self>'.      if ($env{'form.lastSub'} =~ /^(lastonly|hdgrade)$/) {
  $$fullname{$ENV{'form.'.$uname.':'.$udom.':submitted_by'}}.'</a>';   my ($string,$timestamp)= &get_last_submission(\%record);
     $submitby.='</td></tr><tr><td bgcolor="#ffffff">'."\n";   my $lastsubonly=''.
     $request->print($submitby);      ($$timestamp eq '' ? '' : '<b>Date Submitted:</b> '.
  } else {       $$timestamp)."</td></tr>\n";
     my ($string,$timestamp)=&get_last_submission ($symb,$uname,$udom,$ENV{'request.course.id'});   if ($$timestamp eq '') {
     my $lastsubonly.='</td></tr><tr><td bgcolor="#e6ffff"><b>Last Submission Only</b>'.      $lastsubonly.='<tr><td bgcolor="#ffffe6">'.$$string[0]; 
  ($$timestamp eq '' ? '' : '&nbsp; &nbsp; <b>Date Submitted:</b> '.$$timestamp).'</td></tr>';   } else {
     if ($$timestamp eq '') {      my %seenparts;
  $lastsubonly.='<tr><td bgcolor="#ffffe6">'.$$string[0].'</td></tr>';      for my $part (sort keys(%$handgrade)) {
     } else {   my ($partid,$respid) = split(/_/,$part);
  for my $part (sort keys(%$handgrade)) {   my $display_part=&get_display_part($partid,$url,$symb);
     foreach (@$string) {   if ($env{"form.$uname:$udom:$partid:submitted_by"}) {
  my ($partid,$respid) = /^resource\.(\d+)\.(\d+)\.submission/;      if (exists($seenparts{$partid})) { next; }
  if ($part eq ($partid.'_'.$respid)) {      $seenparts{$partid}=1;
     my ($ressub,$subval) = split(/:/,$_,2);      my $submitby='<b>Part:</b> '.$display_part.
     $lastsubonly.='<tr><td bgcolor="#ffffe6"><b>Part ID</b> '.   ' <b>Collaborative submission by:</b> '.
  $partid.' <b>Response ID</b> '.$respid.   '<a href="javascript:viewSubmitter(\''.
  ' <b>Submission</b> '.&keywords_highlight($subval).'</td></tr>'   $env{"form.$uname:$udom:$partid:submitted_by"}.
  if ($ENV{'form.lastSub'} eq 'lastonly' ||    '\')"; TARGET=_self>'.
     ($ENV{'form.lastSub'} eq 'hdgrade' && $$handgrade{$part} =~ /:yes$/));   $$fullname{$env{"form.$uname:$udom:$partid:submitted_by"}}.'</a><br />';
       $request->print($submitby);
       next;
    }
    my $responsetype = $responseType->{$partid}->{$respid};
    if (!exists($record{"resource.$partid.$respid.submission"})) {
       $lastsubonly.='<tr><td bgcolor="#ffffe6"><b>Part:</b> '.
    $display_part.' <font color="#999999">( ID '.$respid.
    ' )</font>&nbsp; &nbsp;'.
    '<font color="red">Nothing submitted - no attempts</font><br /><br />';
       next;
    }
    foreach (@$string) {
       my ($partid,$respid) = /^resource\.([^\.]*)\.([^\.]*)\.submission/;
       if ($part ne ($partid.'_'.$respid)) { next; }
       my ($ressub,$subval) = split(/:/,$_,2);
       # Similarity check
       my $similar='';
       if($env{'form.checkPlag'}){
    my ($oname,$odom,$ocrsid,$oessay,$osim)=
       &most_similar($uname,$udom,$subval);
    if ($osim) {
       $osim=int($osim*100.0);
       $similar="<hr /><h3><font color=\"#FF0000\">Essay".
    " is $osim% similar to an essay by ".
    &Apache::loncommon::plainname($oname,$odom).
    '</font></h3><blockquote><i>'.
    &keywords_highlight($oessay).
    '</i></blockquote><hr />';
    }
       }
       my $order=&get_order($partid,$respid,$symb,$uname,$udom);
       if ($env{'form.lastSub'} eq 'lastonly' || 
    ($env{'form.lastSub'} eq 'hdgrade' && 
    $$handgrade{$part} eq 'yes')) {
    my $display_part=&get_display_part($partid,$url,$symb);
    $lastsubonly.='<tr><td bgcolor="#ffffe6"><b>Part:</b> '.
       $display_part.' <font color="#999999">( ID '.$respid.
       ' )</font>&nbsp; &nbsp;';
    my @files;
    if ($record{"resource.$partid.$respid.portfiles"}) {
       my $file_url = '/uploaded/'.$udom.'/'.$uname.'/portfolio';
       foreach my $file (split(',',$record{"resource.$partid.$respid.portfiles"})) {
    push(@files,$file_url.$file);
       
    &Apache::lonnet::logthis("found a portfolio file".$record{"resource.$partid.$respid.portfiles"});
    &Apache::lonnet::logthis("uploaded URL file".$record{"resource.$partid.$respid.uploadedurl"});
       }
    }
    if ($record{"resource.$partid.$respid.uploadedurl"}) {
       push(@files,$record{"resource.$partid.$respid.uploadedurl"});
    }
    if (@files) {
       $lastsubonly.='<br /><font color="red" size="1">Like all files provided by users, this file may contain virusses</font><br />';
       foreach my $file (@files) {
    &Apache::lonnet::allowuploaded('/adm/grades',$file);
    $lastsubonly.='<br /><a href="'.$file.'" target="lonGRDs"><img src="'.&Apache::loncommon::icon($file).'" border=0"> '.$file.'</a>';
       }
       $lastsubonly.='<br />';
  }   }
    $lastsubonly.='<b>Submitted Answer: </b>'.
       &cleanRecord($subval,$responsetype,$symb,$partid,
    $respid,\%record,$order);
    if ($similar) {$lastsubonly.="<br /><br />$similar\n";}
     }      }
  }   }
     }      }
     $lastsubonly.='</td></tr><tr><td bgcolor="#ffffff">'."\n";  
     $request->print($lastsubonly);  
  }   }
     } else {   $lastsubonly.='</td></tr><tr bgcolor="#ffffff"><td>'."\n";
    $request->print($lastsubonly);
       } elsif ($env{'form.lastSub'} eq 'datesub') {
    my (undef,$responseType,undef,$parts) = &showResourceInfo($url);
    $request->print(&displaySubByDates($symb,\%record,$parts,$responseType,$checkIcon,$uname,$udom));
       } elsif ($env{'form.lastSub'} =~ /^(last|all)$/) {
  $request->print(&Apache::loncommon::get_previous_attempt($symb,$uname,$udom,   $request->print(&Apache::loncommon::get_previous_attempt($symb,$uname,$udom,
  $ENV{'request.course.id'},$last,   $env{'request.course.id'},
  '.submission','Apache::grades::keywords_highlight'));   $last,'.submission',
    'Apache::grades::keywords_highlight'));
     }      }
   
       $request->print('<input type="hidden" name="unamedom'.$counter.'" value="'.$uname.':'
    .$udom.'" />'."\n");
           
     # view submission with no grading option      # return if view submission with no grading option
     if ($ENV{'form.showgrading'} eq '') {      if ($env{'form.showgrading'} eq '' || (!&canmodify($usec))) {
  $request->print('</td></tr></table></td></tr></table></form>');   my $toGrade.='<input type="button" value="Grade Student" '.
       'onClick="javascript:checksubmit(this.form,\'Grade Student\',\''
       .$counter.'\');" TARGET=_self> &nbsp;'."\n" if (&canmodify($usec));
    $toGrade.='</td></tr></table></td></tr></table>'."\n";
    if (($env{'form.command'} eq 'submission') || 
       ($env{'form.command'} eq 'processGroup' && $counter == $total)) {
       $toGrade.='</form>'.&show_grading_menu_form($symb,$url) 
    }
    $request->print($toGrade);
  return;   return;
       } else {
    $request->print('</td></tr></table></td></tr></table>'."\n");
     }      }
   
     $result='<input type="hidden" name="newmsg'.$counter.'" value="" />'."\n".      # essay grading message center
  '<input type="hidden" name="includemsg'.$counter.'" value="" />'."\n".      if ($env{'form.handgrade'} eq 'yes') {
  '<input type="hidden" name="unamedom'.$counter.'" value="'.$uname.':'.$udom.'" />'."\n";   my ($lastname,$givenn) = split(/,/,$env{'form.fullname'});
     $result.='&nbsp;<a href="javascript:msgCenter(document.SCORE,'.$counter.   my $msgfor = $givenn.' '.$lastname;
  ',\''.$fullname.'\')"; TARGET=_self>Compose Message</a><br />'."\n" if ($ENV{'form.handgrade'} eq 'yes');   if (scalar(@col_fullnames) > 0) {
     $request->print($result);      my $lastone = pop @col_fullnames;
       $msgfor .= ', '.(join ', ',@col_fullnames).' and '.$lastone.'.';
    }
    $msgfor =~ s/\'/\\'/g; #' stupid emacs - no! javascript
    $result='<input type="hidden" name="includemsg'.$counter.'" value="" />'."\n".
       '<input type="hidden" name="newmsg'.$counter.'" value="" />'."\n";
    $result.='&nbsp;<a href="javascript:msgCenter(document.SCORE,'.$counter.
       ',\''.$msgfor.'\')"; TARGET=_self>'.
       'Compose Message to student'.(scalar(@col_fullnames) >= 1 ? 's' : '').'</a> &nbsp;'.
       '<img src="'.$request->dir_config('lonIconsURL').
       '/mailbkgrd.gif" width="14" height="10" name="mailicon'.$counter.'" />'."\n".
       '<br />&nbsp;(Message will be sent when you click on Save & Next below.)'."\n" 
       if ($env{'form.handgrade'} eq 'yes');
    $request->print($result);
       }
   
     my %seen = ();      my %seen = ();
     my @partlist;      my @partlist;
       my @gradePartRespid;
     for (sort keys(%$handgrade)) {      for (sort keys(%$handgrade)) {
  my ($partid,$respid) = split(/_/);   my ($partid,$respid) = split(/_/);
  next if ($seen{$partid} > 0);   next if ($seen{$partid} > 0);
  $seen{$partid}++;   $seen{$partid}++;
  next if ($$handgrade{$_} =~ /:no$/);   next if ($$handgrade{$_} =~ /:no$/ && $env{'form.lastSub'} =~ /^(hdgrade)$/);
  push @partlist,$partid;   push @partlist,$partid;
  my $wgt    = &Apache::lonnet::EXT('resource.'.$partid.'.weight',$symb,$udom,$uname);   push @gradePartRespid,$partid.'.'.$respid;
  my $wgtmsg = ($wgt > 0 ? '(problem weight)' : '<font color="red">problem weight assigned by computer</font>');  
  $wgt       = ($wgt > 0 ? $wgt : '1');  
  my $score  = ($record{'resource.'.$partid.'.awarded'} eq '' ?  
       '' : $record{'resource.'.$partid.'.awarded'}*$wgt);  
   
  # display grading options  
  $result='<input type="hidden" name="WGT'.$counter.'_'.$partid.'" value="'.$wgt.'" />';  
  $result.='<table border="0"><tr><td><b>Part </b>'.$partid.' <b>Points</b></td><td>';  
   
  my $ctr = 0;   $request->print(&gradeBox($request,$symb,$uname,$udom,$counter,$partid,\%record));
  $result.='<table border="0"><tr>';  # display radio buttons in a nice table 10 across  
  while ($ctr<=$wgt) {  
     $result.= '<td><input type="radio" name="RADVAL'.$counter.'_'.$partid.'" '.  
  'onclick="javascript:writeBox(this.form.GRADE_BOX'.$counter.'_'.$partid.  
  ',this.form.GRADE_SEL'.$counter.'_'.$partid.','.$ctr.  
  ',this.form.stores'.$counter.'_'.$partid.')" '.  
  ($score eq $ctr ? 'checked':'').' /> '.$ctr."</td>\n";  
     $result.=(($ctr+1)%10 == 0 ? '</tr><tr>' : '');  
     $ctr++;  
  }  
  $result.='</tr></table>';  
   
  $result.='</td><td>&nbsp;<b>or</b>&nbsp;</td>';  
  $result.='<td><input type="text" name="GRADE_BOX'.$counter.'_'.$partid.'"'.  
     ($score ne ''? ' value = "'.$score.'"':'').' size="4" '.  
     'onChange="javascript:updateRadio(this.form.RADVAL'.$counter.'_'.$partid.  
     ',this.form.GRADE_BOX'.$counter.'_'.$partid.  
     ',this.form.GRADE_SEL'.$counter.'_'.$partid.  
     ',this.form.stores'.$counter.'_'.$partid.')" /></td>'."\n";  
  $result.='<td>/'.$wgt.' '.$wgtmsg.' </td><td>';  
   
  $result.='<select name="GRADE_SEL'.$counter.'_'.$partid.'" '.  
     'onChange="javascript:clearRadBox(this.form.RADVAL'.$counter.'_'.$partid.  
     ',this.form.GRADE_BOX'.$counter.'_'.$partid.  
     ',this.form.GRADE_SEL'.$counter.'_'.$partid.  
     ',this.form.stores'.$counter.'_'.$partid.')" />'."\n".  
     '<option selected="on"> </option>'.  
     '<option>excused</option></select>'."&nbsp&nbsp\n";  
  $result.='<input type="hidden" name="stores'.$counter.'_'.$partid.'" value="0" />';  
  $result.='</td></tr></table>';  
  $request->print($result);  
     }      }
     $request->print('<input type="hidden" name="partlist'.$counter.'" value="'.(join ":",@partlist).'" />'."\n");      $result='<input type="hidden" name="partlist'.$counter.
     $request->print('</td></tr></table></td></tr></table>'."\n");   '" value="'.(join ":",@partlist).'" />'."\n";
       $result.='<input type="hidden" name="gradePartRespid'.
    '" value="'.(join ":",@gradePartRespid).'" />'."\n" if ($counter == 0);
       my $ctr = 0;
       while ($ctr < scalar(@partlist)) {
    $result.='<input type="hidden" name="partid'.$counter.'_'.$ctr.'" value="'.
       $partlist[$ctr].'" />'."\n";
    $ctr++;
       }
       $request->print($result.'</td></tr></table></td></tr></table>'."\n");
   
     # print end of form      # print end of form
     if ($counter == $total) {      if ($counter == $total) {
  my $endform.='<table border="0"><tr><td><input type="submit" name="gradeOpt" value="Save & Next" />';   my $endform='<table border="0"><tr><td>'."\n";
    $endform.='<input type="button" value="Save & Next" '.
       'onClick="javascript:checksubmit(this.form,\'Save & Next\','.
       $total.','.scalar(@partlist).');" TARGET=_self> &nbsp;'."\n";
  my $ntstu ='<select name="NTSTU">'.   my $ntstu ='<select name="NTSTU">'.
     '<option>1</option><option>2</option>'.      '<option>1</option><option>2</option>'.
     '<option>3</option><option>5</option>'.      '<option>3</option><option>5</option>'.
     '<option>7</option><option>10</option></select>'."\n";      '<option>7</option><option>10</option></select>'."\n";
  my $nsel = ($ENV{'form.NTSTU'} ne '' ? $ENV{'form.NTSTU'} : '1');   my $nsel = ($env{'form.NTSTU'} ne '' ? $env{'form.NTSTU'} : '1');
  $ntstu =~ s/<option>$nsel</<option selected="on">$nsel</;   $ntstu =~ s/<option>$nsel</<option selected="on">$nsel</;
  $endform.=$ntstu.'student(s) &nbsp;&nbsp;'.   $endform.=$ntstu.'student(s) &nbsp;&nbsp;';
     '<input type="submit" name="gradeOpt" value="Next" />&nbsp'.   $endform.='<input type="button" value="Previous" '.
     '<input type="submit" name="gradeOpt" value="Previous" />&nbsp'.      'onClick="javascript:checksubmit(this.form,\'Previous\');" TARGET=_self> &nbsp;'."\n".
     '(Next and Previous do not save the scores.)'.      '<input type="button" value="Next" '.
     '</td><tr></table></form>';      'onClick="javascript:checksubmit(this.form,\'Next\');" TARGET=_self> &nbsp;';
    $endform.='(Next and Previous (student) do not save the scores.)'."\n" ;
    $endform.='</td><tr></table></form>';
    $endform.=&show_grading_menu_form($symb,$url);
  $request->print($endform);   $request->print($endform);
     }      }
     return '';      return '';
 }  }
   
   #--- Retrieve the last submission for all the parts
 sub get_last_submission {  sub get_last_submission {
     my ($symb,$username,$domain,$course)=@_;      my ($returnhash)=@_;
     if ($symb) {      my (@string,$timestamp);
  my (@string,$timestamp);      if ($$returnhash{'version'}) {
  my (%returnhash)=&Apache::lonnet::restore($symb,$course,$domain,$username);   my %lasthash=();
  if ($returnhash{'version'}) {   my ($version);
     my %lasthash=();   for ($version=1;$version<=$$returnhash{'version'};$version++) {
     my ($version);      foreach (sort(split(/\:/,$$returnhash{$version.':keys'}))) {
     for ($version=1;$version<=$returnhash{'version'};$version++) {   $lasthash{$_}=$$returnhash{$version.':'.$_};
  foreach (sort(split(/\:/,$returnhash{$version.':keys'}))) {     $timestamp = scalar(localtime($$returnhash{$version.':timestamp'}));
     $lasthash{$_}=$returnhash{$version.':'.$_};      }
  }   }
     }   foreach ((keys %lasthash)) {
     foreach ((keys %lasthash)) {      if ($_ =~ /\.submission$/) {
  if ($_ =~ /\.submission$/) {push @string, (join(':',$_,$lasthash{$_}))}   my ($partid,$foo) = split(/submission$/,$_);
  if ($_ =~ /timestamp/) {$timestamp = scalar(localtime($lasthash{$_}))};   my $draft  = $lasthash{$partid.'awarddetail'} eq 'DRAFT' ?
       '<font color="red">Draft Copy</font> ' : '';
    push @string, (join(':',$_,$draft.$lasthash{$_}));
     }      }
  }   }
  @string = $string[0] eq '' ? 'Nothing submitted - no attempts.' : @string;  
  return \@string,\$timestamp;  
     }      }
       @string = $string[0] eq '' ? '<font color="red">Nothing submitted - no attempts.</font>' : @string;
       return \@string,\$timestamp;
 }  }
   
   #--- High light keywords, with style choosen by user.
 sub keywords_highlight {  sub keywords_highlight {
     my $string  = shift;      my $string    = shift;
     my $size    = $ENV{'form.kwsize'} eq '0' ? '' : 'size='.$ENV{'form.kwsize'};      my $size      = $env{'form.kwsize'} eq '0' ? '' : 'size='.$env{'form.kwsize'};
     my $styleon = $ENV{'form.kwstyle'} eq ''  ? '' : $ENV{'form.kwstyle'};      my $styleon   = $env{'form.kwstyle'} eq ''  ? '' : $env{'form.kwstyle'};
     (my $styleoff = $styleon) =~ s/\</\<\//;      (my $styleoff = $styleon) =~ s/\</\<\//;
     my @keylist = split(/[,\s+]/,$ENV{'form.keywords'});      my @keylist   = split(/[,\s+]/,$env{'form.keywords'});
     foreach (@keylist) {      foreach (@keylist) {
  $string =~ s/\b$_(\b|\.)/\<font color\=$ENV{'form.kwclr'} $size\>$styleon$_$styleoff\<\/font\>/gi;   $string =~ s/\b\Q$_\E(\b|\.)/<font color\=$env{'form.kwclr'} $size\>$styleon$_$styleoff<\/font>/gi;
     }      }
     return $string;      return $string;
 }  }
   
   #--- Called from submission routine
 sub processHandGrade {  sub processHandGrade {
     my ($request) = shift;      my ($request) = shift;
     my $url    = $ENV{'form.url'};      my $url    = $env{'form.url'};
     my $symb   = $ENV{'form.symb'};      my $symb   = $env{'form.symb'};
     my $button = $ENV{'form.gradeOpt'};      my $button = $env{'form.gradeOpt'};
     my $ngrade = $ENV{'form.NCT'};      my $ngrade = $env{'form.NCT'};
     my $ntstu  = $ENV{'form.NTSTU'};      my $ntstu  = $env{'form.NTSTU'};
   
     my $loginuser = $ENV{'user.name'}.':'.$ENV{'user.domain'};  
     my %keyhash = ();  
     $ENV{'form.keywords'}           =~ s/,\s{0,}|\s+/ /g;  
     $ENV{'form.keywords'}           =~ s/^\s+|\s+$//;  
     $keyhash{$symb.'_keywords'}     = $ENV{'form.keywords'};  
     $keyhash{$symb.'_subject'}      = $ENV{'form.msgsub'};  
     $keyhash{$loginuser.'_kwclr'}   = $ENV{'form.kwclr'};  
     $keyhash{$loginuser.'_kwsize'}  = $ENV{'form.kwsize'};  
     $keyhash{$loginuser.'_kwstyle'} = $ENV{'form.kwstyle'};  
   
     my ($ctr,$idx) = (1,1);  
     while ($ctr <= $ENV{'form.savemsgN'}) {  
  if ($ENV{'form.savemsg'.$ctr} ne '') {  
     $keyhash{$symb.'_savemsg'.$idx} = $ENV{'form.savemsg'.$ctr};  
     $idx++;  
  }  
  $ctr++;  
     }  
     $ctr = 0;  
     while ($ctr < $ngrade) {  
  if ($ENV{'form.newmsg'.$ctr} ne '') {  
     $keyhash{$symb.'_savemsg'.$idx} = $ENV{'form.newmsg'.$ctr};  
     $ENV{'form.savemsg'.$idx} = $ENV{'form.newmsg'.$ctr};  
     $idx++;  
  }  
  $ctr++;  
     }  
     $ENV{'form.savemsgN'} = --$idx;  
     $keyhash{$symb.'_savemsgN'} = $ENV{'form.savemsgN'};  
     my $putresult = &Apache::lonnet::put  
  ('nohist_handgrade',\%keyhash,  
  $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},  
  $ENV{'course.'.$ENV{'request.course.id'}.'.num'});  
   
     if ($ENV{'form.refresh'} eq 'on') {  
  my $ctr = 0;  
  $ENV{'form.NTSTU'}=$ngrade;  
  while ($ctr < $ngrade) {  
     ($ENV{'form.student'},my $udom) = split(/:/,$ENV{'form.unamedom'.$ctr});  
     &submission($request,$ctr,$ngrade-1);  
     $ctr++;  
  }  
  return '';  
     }  
   
     if ($button eq 'Save & Next') {      if ($button eq 'Save & Next') {
  my $ctr = 0;   my $ctr = 0;
  while ($ctr < $ngrade) {   while ($ctr < $ngrade) {
     my ($uname,$udom) = split(/:/,$ENV{'form.unamedom'.$ctr});      my ($uname,$udom) = split(/:/,$env{'form.unamedom'.$ctr});
     my ($errorflg) = &saveHandGrade($request,$url,$symb,$uname,$udom,$ctr);      my ($errorflag,$pts,$wgt) = &saveHandGrade($request,$url,$symb,$uname,$udom,$ctr);
     return '' if ($errorflg eq 'error');      if ($errorflag eq 'no_score') {
    $ctr++;
     my $includemsg = $ENV{'form.includemsg'.$ctr};   next;
       }
       if ($errorflag eq 'not_allowed') {
    $request->print("<font color=\"red\">Not allowed to modify grades for $uname:$udom</font>");
    $ctr++;
    next;
       }
       my $includemsg = $env{'form.includemsg'.$ctr};
     my ($subject,$message,$msgstatus) = ('','','');      my ($subject,$message,$msgstatus) = ('','','');
     if ($includemsg =~ /savemsg|new$ctr/) {      if ($includemsg =~ /savemsg|newmsg\Q$ctr\E/) {
  $subject = $ENV{'form.msgsub'} if ($includemsg =~ /^msgsub/);   $subject = $env{'form.msgsub'} if ($includemsg =~ /^msgsub/);
  my (@msgnum) = split(/,/,$includemsg);   my (@msgnum) = split(/,/,$includemsg);
  foreach (@msgnum) {   foreach (@msgnum) {
     $message.=$ENV{'form.'.$_} if ($_ =~ /savemsg|newmsg/ && $_ ne '');      $message.=$env{'form.'.$_} if ($_ =~ /savemsg|newmsg/ && $_ ne '');
  }   }
  $message =~ s/\s+/ /g;   $message =&Apache::lonfeedback::clear_out_html($message);
    $message.="\n\nPoint".($pts > 1 ? 's':'').' awarded = '.$pts.' out of '.$wgt;
    $message.=" for <a href=\"".
       &Apache::lonnet::clutter($url).
       "?symb=$symb\">$env{'form.probTitle'}</a>";
  $msgstatus = &Apache::lonmsg::user_normal_msg ($uname,$udom,   $msgstatus = &Apache::lonmsg::user_normal_msg ($uname,$udom,
        $ENV{'form.msgsub'},$message);         $env{'form.msgsub'},$message);
     }      }
     if ($ENV{'form.collaborator'.$ctr}) {      if ($env{'form.collaborator'.$ctr}) {
  my (@collaborators) = split(/:/,$ENV{'form.collaborator'.$ctr});   my @collabstrs=&Apache::loncommon::get_env_multiple("form.collaborator$ctr");
  foreach (@collaborators) {   foreach my $collabstr (@collabstrs) {
     &saveHandGrade($request,$url,$symb,$_,$udom,$ctr,      my ($part,@collaborators) = split(/:/,$collabstr);
    $ENV{'form.unamedom'.$ctr});      foreach (@collaborators) {
     if ($message ne '') {   my ($errorflag,$pts,$wgt) = 
  $msgstatus = &Apache::lonmsg::user_normal_msg ($_,$udom,      &saveHandGrade($request,$url,$symb,$_,$udom,$ctr,
        $ENV{'form.msgsub'},     $env{'form.unamedom'.$ctr},$part);
        $message);   if ($errorflag eq 'not_allowed') {
       $request->print("<font color=\"red\">Not allowed to modify grades for $_:$udom</font>");
       next;
    } else {
       if ($message ne '') {
    $msgstatus = &Apache::lonmsg::user_normal_msg($_,$udom,$env{'form.msgsub'},$message);
       }
       
    }
     }      }
  }   }
     }      }
     $ctr++;      $ctr++;
  }   }
     }      }
     my $firststu = $ENV{'form.unamedom0'};  
     my $laststu = $ENV{'form.unamedom'.($ngrade-1)};      if ($env{'form.handgrade'} eq 'yes') {
     $ctr = 2;   # Keywords sorted in alphabatical order
    my $loginuser = $env{'user.name'}.':'.$env{'user.domain'};
    my %keyhash = ();
    $env{'form.keywords'}           =~ s/,\s{0,}|\s+/ /g;
    $env{'form.keywords'}           =~ s/^\s+|\s+$//;
    my (@keywords) = sort(split(/\s+/,$env{'form.keywords'}));
    $env{'form.keywords'} = join(' ',@keywords);
    $keyhash{$symb.'_keywords'}     = $env{'form.keywords'};
    $keyhash{$symb.'_subject'}      = $env{'form.msgsub'};
    $keyhash{$loginuser.'_kwclr'}   = $env{'form.kwclr'};
    $keyhash{$loginuser.'_kwsize'}  = $env{'form.kwsize'};
    $keyhash{$loginuser.'_kwstyle'} = $env{'form.kwstyle'};
   
    # message center - Order of message gets changed. Blank line is eliminated.
    # New messages are saved in env for the next student.
    # All messages are saved in nohist_handgrade.db
    my ($ctr,$idx) = (1,1);
    while ($ctr <= $env{'form.savemsgN'}) {
       if ($env{'form.savemsg'.$ctr} ne '') {
    $keyhash{$symb.'_savemsg'.$idx} = $env{'form.savemsg'.$ctr};
    $idx++;
       }
       $ctr++;
    }
    $ctr = 0;
    while ($ctr < $ngrade) {
       if ($env{'form.newmsg'.$ctr} ne '') {
    $keyhash{$symb.'_savemsg'.$idx} = $env{'form.newmsg'.$ctr};
    $env{'form.savemsg'.$idx} = $env{'form.newmsg'.$ctr};
    $idx++;
       }
       $ctr++;
    }
    $env{'form.savemsgN'} = --$idx;
    $keyhash{$symb.'_savemsgN'} = $env{'form.savemsgN'};
    my $putresult = &Apache::lonnet::put
       ('nohist_handgrade',\%keyhash,
        $env{'course.'.$env{'request.course.id'}.'.domain'},
        $env{'course.'.$env{'request.course.id'}.'.num'});
       }
       # Called by Save & Refresh from Highlight Attribute Window
       my (undef,undef,$fullname) = &getclasslist($env{'form.section'},'1');
       if ($env{'form.refresh'} eq 'on') {
    my ($ctr,$total) = (0,0);
    while ($ctr < $ngrade) {
       $total++ if  $env{'form.unamedom'.$ctr} ne '';
       $ctr++;
    }
    $env{'form.NTSTU'}=$ngrade;
    $ctr = 0;
    while ($ctr < $total) {
       my $processUser = $env{'form.unamedom'.$ctr};
       ($env{'form.student'},$env{'form.userdom'}) = split(/:/,$processUser);
       $env{'form.fullname'} = $$fullname{$processUser};
       &submission($request,$ctr,$total-1);
       $ctr++;
    }
    return '';
       }
   
   # Go directly to grade student - from submission or link from chart page
       if ($button eq 'Grade Student') {
    (undef,undef,$env{'form.handgrade'},undef,undef) = &showResourceInfo($url);
    my $processUser = $env{'form.unamedom'.$env{'form.studentNo'}};
    ($env{'form.student'},$env{'form.userdom'}) = split(/:/,$processUser);
    $env{'form.fullname'} = $$fullname{$processUser};
    &submission($request,0,0);
    return '';
       }
   
       # Get the next/previous one or group of students
       my $firststu = $env{'form.unamedom0'};
       my $laststu = $env{'form.unamedom'.($ngrade-1)};
       my $ctr = 2;
     while ($laststu eq '') {      while ($laststu eq '') {
  $laststu  = $ENV{'form.unamedom'.($ngrade-$ctr)};   $laststu  = $env{'form.unamedom'.($ngrade-$ctr)};
  $ctr++;   $ctr++;
  $laststu = $firststu if ($ctr > $ngrade);   $laststu = $firststu if ($ctr > $ngrade);
     }      }
     my ($classlist,$seclist,$ids,$stusec,$fullname) = &getclasslist($ENV{'form.section'},'0');  
   
     my (@parsedlist,@nextlist);      my (@parsedlist,@nextlist);
     my ($nextflg) = 0;      my ($nextflg) = 0;
     foreach ( sort(@{ $$classlist{$ENV{'form.section'}} }) ) {      foreach (sort {lc($$fullname{$a}) cmp lc($$fullname{$b}) } keys %$fullname) {
  if ($nextflg == 1 && $button =~ /Next$/) {   if ($nextflg == 1 && $button =~ /Next$/) {
     push @parsedlist,$_;      push @parsedlist,$_;
  }   }
Line 751  sub processHandGrade { Line 2071  sub processHandGrade {
  }   }
     }      }
     $ctr = 0;      $ctr = 0;
     my ($partlist,$handgrade) = &response_type($ENV{'form.url'});  
     @parsedlist = reverse @parsedlist if ($button eq 'Previous');      @parsedlist = reverse @parsedlist if ($button eq 'Previous');
       my ($partlist) = &response_type($url);
     foreach my $student (@parsedlist) {      foreach my $student (@parsedlist) {
    my $submitonly=$env{'form.submitonly'};
  my ($uname,$udom) = split(/:/,$student);   my ($uname,$udom) = split(/:/,$student);
  if ($ENV{'form.submitonly'} eq 'yes') {   if ($submitonly =~ /^(yes|graded|incorrect)$/) {
     my (%status) = &student_gradeStatus($ENV{'form.url'},$udom,$uname,$partlist) ;  #    my %record = &Apache::lonnet::restore($symb,$env{'request.course.id'},$udom,$uname);
     my $statusflg = '';      my %status=&student_gradeStatus($url,$symb,$udom,$uname,$partlist);
       my $submitted = 0;
       my $ungraded = 0;
       my $incorrect = 0;
     foreach (keys(%status)) {      foreach (keys(%status)) {
  $statusflg = 1 if ($status{$_} ne 'nothing');   $submitted = 1 if ($status{$_} ne 'nothing');
  my ($foo,$partid,$foo) = split(/\./,$_);   $ungraded = 1 if ($status{$_} =~ /^ungraded/);
  $statusflg = '' if ($status{'resource.'.$partid.'.submitted_by'} ne '');   $incorrect = 1 if ($status{$_} =~ /^incorrect/);
    my ($foo,$partid,$foo1) = split(/\./,$_);
    if ($status{'resource.'.$partid.'.submitted_by'} ne '') {
       $submitted = 0;
    }
     }      }
     next if ($statusflg eq '');      next if (!$submitted && ($submitonly eq 'yes' ||
        $submitonly eq 'incorrect' ||
        $submitonly eq 'graded'));
       next if (!$ungraded && ($submitonly eq 'graded'));
       next if (!$incorrect && $submitonly eq 'incorrect');
  }   }
  push @nextlist,$student if ($ctr < $ntstu);   push @nextlist,$student if ($ctr < $ntstu);
    last if ($ctr == $ntstu);
  $ctr++;   $ctr++;
     }      }
   
Line 774  sub processHandGrade { Line 2107  sub processHandGrade {
   
     foreach (sort @nextlist) {      foreach (sort @nextlist) {
  my ($uname,$udom,$submitter) = split(/:/);   my ($uname,$udom,$submitter) = split(/:/);
  $ENV{'form.student'} = $uname;   $env{'form.student'}  = $uname;
  $ENV{'form.fullname'} = $$fullname{$_};   $env{'form.userdom'}  = $udom;
 # $ENV{'form.'.$_.':submitted_by'} = $submitter;   $env{'form.fullname'} = $$fullname{$_};
 # print "submitter=$ENV{'form.'.$_.':submitted_by'}= $submitter:<br>";  
  &submission($request,$ctr,$total);   &submission($request,$ctr,$total);
  $ctr++;   $ctr++;
     }      }
Line 791  sub processHandGrade { Line 2123  sub processHandGrade {
     return '';      return '';
 }  }
   
   #---- Save the score and award for each student, if changed
 sub saveHandGrade {  sub saveHandGrade {
     my ($request,$url,$symb,$stuname,$domain,$newflg,$submitter) = @_;      my ($request,$url,$symb,$stuname,$domain,$newflg,$submitter,$part) = @_;
 #   my %record=&Apache::lonnet::restore($symb,$ENV{'request.course.id'},$domain,$stuname);      my @v_flag;
     my %newrecord;      my $usec = &Apache::lonnet::getsection($domain,$stuname,
     foreach (split(/:/,$ENV{'form.partlist'.$newflg})) {     $env{'request.course.id'});
  if ($ENV{'form.GRADE_SEL'.$newflg.'_'.$_} eq 'excused') {      if (!&canmodify($usec)) { return('not_allowed'); }
     $newrecord{'resource.'.$_.'.solved'} = 'excused';      my %record     = &Apache::lonnet::restore($symb,$env{'request.course.id'},$domain,$stuname);
  } else {      my @parts_graded;
     my $pts    = ($ENV{'form.GRADE_BOX'.$newflg.'_'.$_} ne '' ?       my %newrecord  = ();
   $ENV{'form.GRADE_BOX'.$newflg.'_'.$_} : $ENV{'form.RADVAL'.$newflg.'_'.$_});      my ($pts,$wgt) = ('','');
     if ($pts eq '') {      my %aggregate = ();
  &userError($request,'No point was assigned for part id '.$_.' and for username '.$stuname.'.');      my $aggregateflag = 0;
  return 'error';      foreach my $new_part (split(/:/,$env{'form.partlist'.$newflg})) {
    #collaborator may vary for different parts
    if ($submitter && $new_part ne $part) { next; }
    my $dropMenu = $env{'form.GD_SEL'.$newflg.'_'.$new_part};
    if ($dropMenu eq 'excused') {
       if ($record{'resource.'.$new_part.'.solved'} ne 'excused') {
    $newrecord{'resource.'.$new_part.'.solved'} = 'excused';
    if (exists($record{'resource.'.$new_part.'.awarded'})) {
       $newrecord{'resource.'.$new_part.'.awarded'} = '';
    }
       $newrecord{'resource.'.$new_part.'.regrader'}="$env{'user.name'}:$env{'user.domain'}";
       }
    } elsif ($dropMenu eq 'reset status'
    && exists($record{'resource.'.$new_part.'.solved'})) { #don't bother if no old records -> no attempts
       foreach my $key (keys (%record)) {
    if ($key=~/^resource\.\Q$new_part\E\./) { $newrecord{$key} = ''; }
     }      }
     my $wgt    = $ENV{'form.WGT'.$newflg.'_'.$_} eq '' ? 1 : $ENV{'form.WGT'.$newflg.'_'.$_};      $newrecord{'resource.'.$new_part.'.regrader'}=
    "$env{'user.name'}:$env{'user.domain'}";
               my $totaltries = $record{'resource.'.$part.'.tries'};
   
               my %last_resets = &get_last_resets($symb,$env{'request.course.id'},
          [$new_part]);
               my $aggtries =$totaltries;
               if ($last_resets{$new_part}) {
                   $aggtries = &get_num_tries(\%record,$last_resets{$new_part},
      $new_part);
               }
   
               my $solvedstatus = $record{'resource.'.$new_part.'.solved'};
               if ($aggtries > 0) {
                   &decrement($symb,$new_part,\%aggregate,$aggtries,$totaltries,$solvedstatus);
                   $aggregateflag = 1;
               }
    } elsif ($dropMenu eq '') {
       $pts = ($env{'form.GD_BOX'.$newflg.'_'.$new_part} ne '' ? 
       $env{'form.GD_BOX'.$newflg.'_'.$new_part} : 
       $env{'form.RADVAL'.$newflg.'_'.$new_part});
       if ($pts eq '' && $env{'form.GD_SEL'.$newflg.'_'.$new_part} eq '') {
    next;
       }
       $wgt = $env{'form.WGT'.$newflg.'_'.$new_part} eq '' ? 1 : 
    $env{'form.WGT'.$newflg.'_'.$new_part};
     my $partial= $pts/$wgt;      my $partial= $pts/$wgt;
     $newrecord{'resource.'.$_.'.awarded'}  = $partial;      if ($partial eq $record{'resource.'.$new_part.'.awarded'}) {
    #do not update score for part if not changed.
    next;
       } else {
           push @parts_graded, $new_part;
       }
       if ($record{'resource.'.$new_part.'.awarded'} ne $partial) {
    $newrecord{'resource.'.$new_part.'.awarded'}  = $partial;
       }
       my $reckey = 'resource.'.$new_part.'.solved';
     if ($partial == 0) {      if ($partial == 0) {
  $newrecord{'resource.'.$_.'.solved'} = 'incorrect_by_override';   if ($record{$reckey} ne 'incorrect_by_override') {
       $newrecord{$reckey} = 'incorrect_by_override';
    }
     } else {      } else {
  $newrecord{'resource.'.$_.'.solved'} = 'correct_by_override';   if ($record{$reckey} ne 'correct_by_override') {
       $newrecord{$reckey} = 'correct_by_override';
    }
       }    
       if ($submitter && 
    ($record{'resource.'.$new_part.'.submitted_by'} ne $submitter)) {
    $newrecord{'resource.'.$new_part.'.submitted_by'} = $submitter;
     }      }
     $newrecord{'resource.'.$_.'.submitted_by'} = $submitter if ($submitter);      $newrecord{'resource.'.$new_part.'.regrader'}=
    "$env{'user.name'}:$env{'user.domain'}";
    }
    # unless problem has been graded, set flag to version the submitted files
    unless ($record{'resource.'.$new_part.'.solved'} =~ /^correct_/  || $record{'resource.'.$new_part.'.solved'} eq 'incorrect_by_override') {
       push (@v_flag,$new_part);
  }   }
     }      }
           if (scalar(keys(%newrecord)) > 0) {
     if ( scalar(keys(%newrecord)) > 0 ) {          if (scalar(@v_flag)) {
  $newrecord{'resource.regrader'}="$ENV{'user.name'}:$ENV{'user.domain'}";              &version_portfiles(\%record, \@parts_graded, $env{'request.course.id'}, $symb, $domain, $stuname, \@v_flag);
 # &print_hash($request,\%newrecord);          }
  &Apache::lonnet::cstore(\%newrecord,$symb,$ENV{'request.course.id'},$domain,$stuname);   &Apache::lonnet::cstore(\%newrecord,$symb,
    $env{'request.course.id'},$domain,$stuname);
     }      }
     return '';      if ($aggregateflag) {
 }          &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
                     $env{'course.'.$env{'request.course.id'}.'.domain'},
 sub get_symb_and_url {                    $env{'course.'.$env{'request.course.id'}.'.num'});
     my ($request) = @_;      }
     (my $url=$ENV{'form.url'}) =~ s-^http://($ENV{'SERVER_NAME'}|$ENV{'HTTP_HOST'})--;      return '',$pts,$wgt;
     my $symb=($ENV{'form.symb'} ne '' ? $ENV{'form.symb'} : (&Apache::lonnet::symbread($url)));  }
     if ($symb eq '') { $request->print("Unable to handle ambiguous references:$url:."); return ''; }  
     return ($symb,$url);  # ----------- Provides number of tries since last reset.
 }  sub get_num_tries {
       my ($record,$last_reset,$part) = @_;
 sub show_grading_menu_form {      my $timestamp = '';
     my ($symb,$url)=@_;      my $num_tries = 0;
     my $result.='<form action="/adm/grades" method="post">'."\n".      if ($$record{'version'}) {
  '<input type="hidden" name="symb" value="'.$symb.'" />'."\n".          for (my $version=$$record{'version'};$version>=1;$version--) {
  '<input type="hidden" name="url" value="'.$url.'" />'."\n".              if (exists($$record{$version.':resource.'.$part.'.solved'})) {
  '<input type="hidden" name="command" value="gradingmenu" />'."\n".                  $timestamp = $$record{$version.':timestamp'};
  '<input type="submit" name="submit" value="Grading Menu" />'."\n".                  if ($timestamp > $last_reset) {
  '</form>'."\n";                      $num_tries ++;
     return $result;                  } else {
 }                      last;
                   }
 sub gradingmenu {              }
     my ($request) = @_;          }
     my ($symb,$url)=&get_symb_and_url($request);      }
     if (!$symb) {return '';}      return $num_tries;
     my $result='<h2>&nbsp;<font color="#339933">Select a Grading Method</font></h2>';  
     $result.='<table border="0">';  
     $result.='<tr><td colspan=3><font size=+1><b>Resource: </b>'.$url.'</font></td></tr>';  
     my ($partlist,$handgrade) = &response_type($url);  
     my ($resptype,$hdgrade)=('','no');  
     for (sort keys(%$handgrade)) {  
  my ($responsetype,$handgrade)=split(/:/,$$handgrade{$_});  
  $resptype = $responsetype;  
  $hdgrade = $handgrade if ($handgrade eq 'yes');  
  $result.='<tr><td><b>Part id: </b>'.$_.'</td>'.  
     '<td><b>Type: </b>'.$responsetype.'</td>'.  
     '<td><b>Handgrade: </b>'.$handgrade.'</font></td></tr>';  
     }  
     $result.='</table>';  
     $result.=&view_edit_entire_class_form($symb,$url).'<br />';  
     $result.=&upcsvScores_form($symb,$url).'<br />';  
     $result.=&viewGradeaStu_form($symb,$url,$resptype,$hdgrade).'<br />';  
     $result.=&verifyReceipt_form($symb,$url).'<br />';  
     $result.=&view_classlist_form($symb,$url);  
   
     return $result;  
 }  
   
 sub view_classlist_form {  
     my ($symb,$url)=@_;  
     my $result.='<table width=100% border=0><tr><td bgcolor=#777777>'."\n";  
     $result.='<table width=100% border=0><tr bgcolor="#e6ffff"><td>'."\n";  
     $result.='&nbsp;<b>View Class List</b></td></tr>'."\n";  
     $result.='<tr bgcolor=#ffffe6><td>'."\n";  
     $result.='<form action="/adm/grades" method="post">'."\n".  
  '<input type="hidden" name="symb" value="'.$symb.'" />'."\n".  
  '<input type="hidden" name="url" value="'.$url.'" />'."\n".  
  '<input type="hidden" name="command" value="viewclasslist" />'."\n";  
     $result.='&nbsp;<input type="submit" name="submit" value="View Class" /></form>'."\n";  
     $result.='</td></tr></table>'."\n";  
     $result.='</td></tr></table>'."\n";  
     return $result;  
 }  
   
 sub viewclasslist {  
     my ($request) = shift;  
     my ($coursedomain,$coursenum) = split(/_/,$ENV{'request.course.id'});  
     my %classlist=&Apache::lonnet::dump('classlist',$coursedomain,$coursenum);  
     $request->print('<table border=1>');  
     foreach (sort keys(%classlist)) {  
 #    my ($unam,$udom) = split(/:/,$_,2);  
 #    my $section = &Apache::lonnet::usection($udom,$unam,$ENV{'request.course.id'});  
 #    my $fullname = &get_fullname ($unam,$udom);  
 #    my @uname;  
 #    $uname[0]=$unam;  
 #    my %userid=&Apache::lonnet::idrget($udom,@uname);  
 #    my $value=$classlist{$_}.':'.$userid{$unam}.':'.$section.':'.$fullname;  
 #    $classlist{$_}=$value;  
  $request->print('<tr><td>'.$_.' </td><td><pre> '.$classlist{$_}.'</pre></td></tr>');  
     }  
     $request->print('</table>');  
 #  my $putresult = &Apache::lonnet::put  
 #      ('classlist',\%classlist,  
 #       $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},  
 #       $ENV{'course.'.$ENV{'request.course.id'}.'.num'});  
   
     return '';  
 }  
   
 sub view_edit_entire_class_form {  
     my ($symb,$url)=@_;  
     my ($classlist,$sections) = &getclasslist('all','0');  
     my $result.='<table width=100% border=0><tr><td bgcolor=#777777>'."\n";  
     $result.='<table width=100% border=0><tr bgcolor="#e6ffff"><td>'."\n";  
     $result.='&nbsp;<b>View/Grade Entire Section/Class</b></td></tr>'."\n";  
     $result.='<tr bgcolor=#ffffe6><td>'."\n";  
     $result.='<form action="/adm/grades" method="post">'."\n".  
  '<input type="hidden" name="symb" value="'.$symb.'" />'."\n".  
  '<input type="hidden" name="url" value="'.$url.'" />'."\n".  
  '<input type="hidden" name="command" value="viewgrades" />'."\n";  
     $result.='&nbsp;<b>Select section:</b> <select name="section">'."\n";  
     foreach (sort (@$sections)) {  
  $result.= '<option>'.$_.'</option>'."\n";  
     }  
     $result.= '<option selected="on">all</select>'."<br />\n";  
 #    $result.='&nbsp;<b>Display students who has: </b>'.  
 # '<input type="radio" name="submitonly" value="yes" checked> submitted'.  
 # '<input type="radio" name="submitonly" value="all"> everybody <br /><br />';  
     $result.='&nbsp;<input type="submit" name="submit" value="View/Grade" /></form>'."\n";  
     $result.='</td></tr></table>'."\n";  
     $result.='</td></tr></table>'."\n";  
     return $result;  
 }  }
   
 sub upcsvScores_form {  # ----------- Determine decrements required in aggregate totals 
     my ($symb,$url) = @_;  sub decrement_aggs {
     if (!$symb) {return '';}      my ($symb,$part,$aggregate,$aggtries,$totaltries,$solvedstatus) = @_;
     my $result.='<table width=100% border=0><tr><td bgcolor=#777777>'."\n";      my %decrement = (
     $result.='<table width=100% border=0><tr bgcolor="#e6ffff"><td>'."\n";                          attempts => 0,
     $result.='&nbsp;<b>Specify a file containing the class scores for above resource</b></td></tr>'."\n";                          users => 0,
     $result.='<tr bgcolor=#ffffe6><td>'."\n";                          correct => 0
     my $upfile_select=&Apache::loncommon::upfile_select_html();                      );
   $result.=<<ENDUPFORM;      $decrement{'attempts'} = $aggtries;
 <form method="post" enctype="multipart/form-data" action="/adm/grades" name="gradesupload">      if ($solvedstatus =~ /^correct/) {
 <input type="hidden" name="symb" value="$symb" />          $decrement{'correct'} = 1;
 <input type="hidden" name="url" value="$url" />      }
 <input type="hidden" name="command" value="csvuploadmap" />      if ($aggtries == $totaltries) {
 $upfile_select          $decrement{'users'} = 1;
 <br />&nbsp;<input type="submit" name="submit" value="Upload Grades" />      }
 </form>      foreach my $type (keys (%decrement)) {
 ENDUPFORM          $$aggregate{$symb."\0".$part."\0".$type} = -$decrement{$type};
     $result.='</td></tr></table>'."\n";      }
     $result.='</td></tr></table>'."\n";      return;
     return $result;  
 }  }
   
 sub viewGradeaStu_form {  # ----------- Determine timestamps for last reset of aggregate totals for parts  
     my ($symb,$url,$response,$handgrade) = @_;  sub get_last_resets {
     my ($classlist,$sections) = &getclasslist('all','0');      my ($symb,$courseid,$partids) =@_;
     my $result.='<table width=100% border=0><tr><td bgcolor=#777777>'."\n";      my %last_resets;
     $result.='<table width=100% border=0><tr bgcolor="#e6ffff"><td>'."\n";      my $cdom = $env{'course.'.$courseid.'.domain'};
     $result.='&nbsp;<b>View/Grade an Individual Student\'s Submission</b></td></tr>'."\n";      my $cname = $env{'course.'.$courseid.'.num'};
     $result.='<tr bgcolor=#ffffe6><td>'."\n";      my @keys;
     $result.='<form action="/adm/grades" method="post">'."\n".      foreach my $part (@{$partids}) {
  '<input type="hidden" name="symb" value="'.$symb.'" />'."\n".   push(@keys,"$symb\0$part\0resettime");
  '<input type="hidden" name="url" value="'.$url.'" />'."\n".      }
  '<input type="hidden" name="response" value="'.$response.'" />'."\n".      my %results=&Apache::lonnet::get('nohist_resourcetracker',\@keys,
  '<input type="hidden" name="handgrade" value="'.$handgrade.'" />'."\n".       $cdom,$cname);
  '<input type="hidden" name="showgrading" value="yes" />'."\n".      foreach my $part (@{$partids}) {
  '<input type="hidden" name="command" value="submission" />'."\n";   $last_resets{$part}=$results{"$symb\0$part\0resettime"};
       }
     $result.='&nbsp;<b>Select section:</b> <select name="section">'."\n";      return %last_resets;
     foreach (sort (@$sections)) {  }
  $result.= '<option>'.$_.'</option>'."\n";  
     }  # ----------- Handles creating versions for portfolio files as answers
     $result.= '<option selected="on">all</select>'."\n";  sub version_portfiles {
     $result.='&nbsp;&nbsp;<b>Display students who has: </b>'.      my ($record, $parts_graded, $courseid, $symb, $domain, $stuname, $v_flag) = @_;
  '<input type="radio" name="submitonly" value="yes" checked> submitted'.      my $version_parts = join('|',@$v_flag);
  '<input type="radio" name="submitonly" value="all"> everybody <br />';      my $parts = join('|', @$parts_graded);
     $result.='&nbsp;(Section "no" implies the students were not assigned a section.)<br />'       my $portfolio_root = &Apache::loncommon::propath($domain,
  if (grep /no/,@$sections);   $stuname).
    '/userfiles/portfolio';
       foreach my $key(keys %$record) {
           my $new_portfiles;
           if ($key =~ /^resource\.($version_parts)\./ && $key =~ /\.portfiles$/ ) {
               my @v_portfiles;
               my @portfiles = split(/,/,$$record{$key});
               # &Apache::lonnet::logthis("should be unmarking and remarking");
               foreach my $file (@portfiles) {
                   &Apache::lonnet::unmark_as_readonly($domain,$stuname,[$symb,$env{'request.course.id'}],$file);
                   my ($directory,$answer_file) =($file =~ /^(.*?)([^\/]*$)/);
                   my $version = 0;
                   my @answer_file_parts = split(/\./, $answer_file);
                   my @dir_list = &Apache::lonnet::dirlist($directory,$domain,$stuname,$portfolio_root);
                   my @file_names;
                   my @file_name_parts;
                   foreach my $row (@dir_list) {
                       @file_names = split(/\&/,$row,2);
                       @file_name_parts = split(/\./, $file_names[0]);
                       # ($file_name_parts[scalar @file_name_parts] eq $answer_file_parts[scalar @answer_file_parts])
                       if (($file_name_parts[0] eq $answer_file_parts[0]) && 
                           ($file_name_parts[-1] eq $answer_file_parts[-1])) {
                           # gets here if filename and extension match, regardless of version
                           if (scalar @file_name_parts == 3) { # a versioned file is found
                               # so save it for later
                               if ($file_name_parts[1] > $version) {$version = $file_name_parts[1]};
                           }
                       }
                   }
                   $version++;
                   my $home_server = &Apache::lonnet::homeserver($stuname,$domain,undef);
                   $env{'form.copy'} = &Apache::lonnet::getfile("/uploaded/$domain/$stuname/portfolio$directory$answer_file");
                   if($env{'form.copy'} eq '-1') {
                       &Apache::lonnet::logthis('problem getting file '.$directory.$answer_file);
                   } else {
                      my $copy_result = &Apache::lonnet::finishuserfileupload($stuname,$domain,$home_server,'copy',
                                       '/portfolio'.$directory.$answer_file_parts[0].'.'.$version.'.'.$answer_file_parts[-1]);
                       push(@v_portfiles, $answer_file_parts[0].'.'.$version.'.'.$answer_file_parts[-1]);
                       &Apache::lonnet::mark_as_readonly($domain,$stuname,
                                   ['/portfolio'.$directory.$answer_file_parts[0].'.'.$version.'.'.$answer_file_parts[-1]],
                                   [$symb,$env{'request.course.id'},'graded']);
                   }
               }
               $$record{$key} = join(',',@v_portfiles);
           }
       } 
       return 'ok';   
           
     $result.='<br />&nbsp;<input type="submit" name="submit" value="View/Grade" />'."\n".  
  '</form>'."\n";  
     $result.='</td></tr></table>'."\n";  
     $result.='</td></tr></table>'."\n";  
     return $result;  
 }  
   
 sub verifyReceipt_form {  
     my ($symb,$url) = @_;  
     my $cdom=$ENV{"course.$ENV{'request.course.id'}.domain"};  
     my $cnum=$ENV{"course.$ENV{'request.course.id'}.num"};  
     my $hostver=unpack("%32C*",$Apache::lonnet::perlvar{'lonHostID'});  
   
     my $result.='<table width=100% border=0><tr><td bgcolor=#777777>'."\n";  
     $result.='<table width=100% border=0><tr><td bgcolor=#e6ffff>'."\n";  
     $result.='&nbsp;<b>Verify a Submission Receipt Issued by this Server</td></tr>'."\n";  
     $result.='<tr bgcolor=#ffffe6><td>'."\n";  
     $result.='<form action="/adm/grades" method="post">'."\n";  
     $result.='&nbsp;<tt>'.$hostver.'-<input type="text" name="receipt" size="4"></tt><br />'."\n";  
     $result.='&nbsp;<input type="submit" name="submit" value="Verify Receipt">'."\n";  
     $result.='<input type="hidden" name="command" value="verify">'."\n";  
     if ($ENV{'form.url'}) {  
  $result.='<input type="hidden" name="url" value="'.$ENV{'form.url'}.'" />';  
     }  
     if ($ENV{'form.symb'}) {  
  $result.='<input type="hidden" name="symb" value="'.$ENV{'form.symb'}.'" />';  
     }  
     $result.='</form>';  
     $result.='</td></tr></table>'."\n";  
     $result.='</td></tr></table>'."\n";  
     return $result;  
 }  }
   
   #--------------------------------------------------------------------------------------
   #
   #-------------------------- Next few routines handles grading by section or whole class
   #
   #--- Javascript to handle grading by section or whole class
 sub viewgrades_js {  sub viewgrades_js {
     my ($request) = shift;      my ($request) = shift;
   
     $request->print(<<VIEWJAVASCRIPT);      $request->print(<<VIEWJAVASCRIPT);
 <script type="text/javascript" language="javascript">  <script type="text/javascript" language="javascript">
     function viewOneStudent(user) {     function writePoint(partid,weight,point) {
  document.onestudent.student.value = user;   var radioButton = document.classgrade["RADVAL_"+partid];
  document.onestudent.submit();   var textbox = document.classgrade["TEXTVAL_"+partid];
     }  
   
     function writePoint(partid,weight,point) {  
  var radioButton = eval("document.classgrade.RADVAL_"+partid);  
  var textbox = eval("document.classgrade.TEXTVAL_"+partid);  
  if (point == "textval") {   if (point == "textval") {
     var point = eval("document.classgrade.TEXTVAL_"+partid+".value");      point = document.classgrade["TEXTVAL_"+partid].value;
     if (isNaN(point) || point < 0) {      if (isNaN(point) || parseFloat(point) < 0) {
  alert("A number equal or greater than 0 is expected. Entered value = "+point);   alert("A number equal or greater than 0 is expected. Entered value = "+parseFloat(point));
  var resetbox = false;   var resetbox = false;
  for (var i=0; i<radioButton.length; i++) {   for (var i=0; i<radioButton.length; i++) {
     if (radioButton[i].checked) {      if (radioButton[i].checked) {
Line 1047  sub viewgrades_js { Line 2370  sub viewgrades_js {
  }   }
  return;   return;
     }      }
       if (parseFloat(point) > parseFloat(weight)) {
    var resp = confirm("You entered a value ("+parseFloat(point)+
      ") greater than the weight for the part. Accept?");
    if (resp == false) {
       textbox.value = "";
       return;
    }
       }
     for (var i=0; i<radioButton.length; i++) {      for (var i=0; i<radioButton.length; i++) {
  radioButton[i].checked=false;   radioButton[i].checked=false;
  if (point == i) {   if (parseFloat(point) == i) {
     radioButton[i].checked=true;      radioButton[i].checked=true;
  }   }
     }      }
   
  } else {   } else {
     textbox.value = point;      textbox.value = parseFloat(point);
  }   }
  for (i=0;i<document.classgrade.total.value;i++) {   for (i=0;i<document.classgrade.total.value;i++) {
     var user = eval("document.classgrade.counter"+i+".value");      var user = document.classgrade["ctr"+i].value;
     var scorename = eval("document.classgrade.GRADE_"+user+      var scorename = document.classgrade["GD_"+user+"_"+partid+"_awarded"];
  "_"+partid+"_awarded");      var saveval   = document.classgrade["GD_"+user+"_"+partid+"_solved_s"].value;
     var saveval   = eval("document.classgrade.GRADE_"+user+      var selname   = document.classgrade["GD_"+user+"_"+partid+"_solved"];
  "_"+partid+"_solved_save.value");  
     var selname   = eval("document.classgrade.GRADE_"+user+"_"+partid+"_solved");  
     if (saveval != "correct") {      if (saveval != "correct") {
  scorename.value = point;   scorename.value = point;
  selname[0].selected = true;   if (selname[0].selected != true) {
       selname[0].selected = true;
    }
     }      }
  }   }
  var selval   = eval("document.classgrade.SELVAL_"+partid);   document.classgrade["SELVAL_"+partid][0].selected = true;
  selval[0].selected = true;  
     }      }
   
     function writeRadText(partid,weight) {      function writeRadText(partid,weight) {
  var selval   = eval("document.classgrade.SELVAL_"+partid);   var selval   = document.classgrade["SELVAL_"+partid];
  if (selval[1].selected) {   var radioButton = document.classgrade["RADVAL_"+partid];
     var radioButton = eval("document.classgrade.RADVAL_"+partid);          var override = document.classgrade["FORCE_"+partid].checked;
    var textbox = document.classgrade["TEXTVAL_"+partid];
    if (selval[1].selected || selval[2].selected) {
     for (var i=0; i<radioButton.length; i++) {      for (var i=0; i<radioButton.length; i++) {
  radioButton[i].checked=false;   radioButton[i].checked=false;
   
     }      }
     var textbox = eval("document.classgrade.TEXTVAL_"+partid);  
     textbox.value = "";      textbox.value = "";
   
     for (i=0;i<document.classgrade.total.value;i++) {      for (i=0;i<document.classgrade.total.value;i++) {
  var user = eval("document.classgrade.counter"+i+".value");   var user = document.classgrade["ctr"+i].value;
  var scorename = eval("document.classgrade.GRADE_"+user+   var scorename = document.classgrade["GD_"+user+"_"+partid+"_awarded"];
      "_"+partid+"_awarded");   var saveval   = document.classgrade["GD_"+user+"_"+partid+"_solved_s"].value;
  var saveval   = eval("document.classgrade.GRADE_"+user+   var selname   = document.classgrade["GD_"+user+"_"+partid+"_solved"];
      "_"+partid+"_solved_save.value");   if ((saveval != "correct") || override) {
  var selname   = eval("document.classgrade.GRADE_"+user+  
      "_"+partid+"_solved");  
  if (saveval != "correct") {  
     scorename.value = "";      scorename.value = "";
     selname[1].selected = true;      if (selval[1].selected) {
    selname[1].selected = true;
       } else {
    selname[2].selected = true;
    if (Number(document.classgrade["GD_"+user+"_"+partid+"_tries"].value)) 
    {document.classgrade["GD_"+user+"_"+partid+"_tries"].value = '0';}
       }
  }   }
     }      }
  }   } else {
       for (i=0;i<document.classgrade.total.value;i++) {
    var user = document.classgrade["ctr"+i].value;
    var scorename = document.classgrade["GD_"+user+"_"+partid+"_awarded"];
    var saveval   = document.classgrade["GD_"+user+"_"+partid+"_solved_s"].value;
    var selname   = document.classgrade["GD_"+user+"_"+partid+"_solved"];
    if ((saveval != "correct") || override) {
       scorename.value = document.classgrade["GD_"+user+"_"+partid+"_awarded_s"].value;
       selname[0].selected = true;
    }
       }
    }    
     }      }
   
     function changeSelect(partid,user) {      function changeSelect(partid,user) {
  var selval = eval("document.classgrade.GRADE_"+user+'_'+partid+"_solved");   var selval = document.classgrade["GD_"+user+'_'+partid+"_solved"];
    var textbox = document.classgrade["GD_"+user+'_'+partid+"_awarded"];
    var point  = textbox.value;
    var weight = document.classgrade["weight_"+partid].value;
   
    if (isNaN(point) || parseFloat(point) < 0) {
       alert("A number equal or greater than 0 is expected. Entered value = "+parseFloat(point));
       textbox.value = "";
       return;
    }
    if (parseFloat(point) > parseFloat(weight)) {
       var resp = confirm("You entered a value ("+parseFloat(point)+
          ") greater than the weight of the part. Accept?");
       if (resp == false) {
    textbox.value = "";
    return;
       }
    }
  selval[0].selected = true;   selval[0].selected = true;
     }      }
   
     function changeOneScore(partid,user) {      function changeOneScore(partid,user) {
  var selval = eval("document.classgrade.GRADE_"+user+'_'+partid+"_solved");   var selval = document.classgrade["GD_"+user+'_'+partid+"_solved"];
  if (selval[1].selected) {   if (selval[1].selected || selval[2].selected) {
     var boxval = eval("document.classgrade.GRADE_"+user+'_'+partid+"_awarded");      document.classgrade["GD_"+user+'_'+partid+"_awarded"].value = "";
     boxval.value = "";      if (selval[2].selected) {
  }   document.classgrade["GD_"+user+'_'+partid+"_tries"].value = "0";
       }
           }
     }      }
   
     function resetEntry(numpart) {      function resetEntry(numpart) {
  for (ctpart=0;ctpart<numpart;ctpart++) {   for (ctpart=0;ctpart<numpart;ctpart++) {
     var partid = eval("document.classgrade.partid_"+ctpart+".value");      var partid = document.classgrade["partid_"+ctpart].value;
     var radioButton = eval("document.classgrade.RADVAL_"+partid);      var radioButton = document.classgrade["RADVAL_"+partid];
     var textbox = eval("document.classgrade.TEXTVAL_"+partid);      var textbox = document.classgrade["TEXTVAL_"+partid];
     var selval  = eval("document.classgrade.SELVAL_"+partid);      var selval  = document.classgrade["SELVAL_"+partid];
     for (var i=0; i<radioButton.length; i++) {      for (var i=0; i<radioButton.length; i++) {
  radioButton[i].checked=false;   radioButton[i].checked=false;
   
Line 1127  sub viewgrades_js { Line 2491  sub viewgrades_js {
     selval[0].selected = true;      selval[0].selected = true;
   
     for (i=0;i<document.classgrade.total.value;i++) {      for (i=0;i<document.classgrade.total.value;i++) {
  var user = eval("document.classgrade.counter"+i+".value");   var user = document.classgrade["ctr"+i].value;
  var resetscore = eval("document.classgrade.GRADE_"+user+   var resetscore = document.classgrade["GD_"+user+"_"+partid+"_awarded"];
       "_"+partid+"_awarded");   resetscore.value = document.classgrade["GD_"+user+"_"+partid+"_awarded_s"].value;
  resetscore.value = eval("document.classgrade.GRADE_"+user+   var resettries = document.classgrade["GD_"+user+"_"+partid+"_tries"];
  "_"+partid+"_awarded_save.value");   resettries.value = document.classgrade["GD_"+user+"_"+partid+"_tries_s"].value;
    var saveselval   = document.classgrade["GD_"+user+"_"+partid+"_solved_s"].value;
  var saveselval   = eval("document.classgrade.GRADE_"+user+   var selname   = document.classgrade["GD_"+user+"_"+partid+"_solved"];
      "_"+partid+"_solved_save.value");  
   
  var selname   = eval("document.classgrade.GRADE_"+user+"_"+partid+"_solved");  
  if (saveselval == "excused") {   if (saveselval == "excused") {
     selname[1].selected = true;      if (selname[1].selected == false) { selname[1].selected = true;}
  } else {   } else {
     selname[0].selected = true;      if (selname[0].selected == false) {selname[0].selected = true};
  }   }
     }      }
  }   }
     }      }
   
   
 </script>  </script>
 VIEWJAVASCRIPT  VIEWJAVASCRIPT
 }  }
   
   #--- show scores for a section or whole class w/ option to change/update a score
 sub viewgrades {  sub viewgrades {
     my ($request) = shift;      my ($request) = shift;
     &viewgrades_js($request);      &viewgrades_js($request);
   
     my ($symb,$url) = ($ENV{'form.symb'},$ENV{'form.url'});       my ($symb,$url) = ($env{'form.symb'},$env{'form.url'}); 
     $request->print ('<h2><font color="#339933">Manual Grading</font></h2>');      #need to make sure we have the correct data for later EXT calls, 
       #thus invalidate the cache
       &Apache::lonnet::devalidatecourseresdata(
                    $env{'course.'.$env{'request.course.id'}.'.num'},
                    $env{'course.'.$env{'request.course.id'}.'.domain'});
       &Apache::lonnet::clear_EXT_cache_status();
   
     my $result='<font size=+1><b>Resource: </b>'.$ENV{'form.url'}.'</font>'."\n";      my $result='<h3><font color="#339933">'.&mt('Manual Grading').'</font></h3>';
       $result.='<font size=+1><b>Current Resource: </b>'.$env{'form.probTitle'}.'</font>'."\n";
   
     #view individual student submission form - called using Javascript viewOneStudent      #view individual student submission form - called using Javascript viewOneStudent
     $result.= '<form action="/adm/grades" method="post" name="onestudent">'."\n".      $result.=&jscriptNform($url,$symb);
  '<input type="hidden" name="symb"    value="'.$symb.'" />'."\n".  
  '<input type="hidden" name="url"     value="'.$url.'" />'."\n".  
  '<input type="hidden" name="command" value="submission" />'."\n".  
  '<input type="hidden" name="student" value="" />'."\n".  
  '</form>'."\n";  
   
     #start the form      #beginning of class grading form
     $result.= '<form action="/adm/grades" method="post" name="classgrade">'."\n".      $result.= '<form action="/adm/grades" method="post" name="classgrade">'."\n".
  '<input type="hidden" name="symb"    value="'.$symb.'" />'."\n".   '<input type="hidden" name="symb"    value="'.$symb.'" />'."\n".
  '<input type="hidden" name="url"     value="'.$url.'" />'."\n".   '<input type="hidden" name="url"     value="'.$url.'" />'."\n".
  '<input type="hidden" name="command" value="editgrades" />'."\n".   '<input type="hidden" name="command" value="editgrades" />'."\n".
  '<input type="hidden" name="section" value="'.$ENV{'form.section'}.'" />'."\n";   '<input type="hidden" name="section" value="'.$env{'form.section'}.'" />'."\n".
    '<input type="hidden" name="saveState" value="'.$env{'form.saveState'}.'" />'."\n".
     $result.='To assign the same score for all the students use the radio buttons or '.   '<input type="hidden" name="Status" value="'.$env{'form.Status'}.'" />'."\n".
  'text box below. To assign scores individually fill in the score boxes for '.   '<input type="hidden" name="probTitle" value="'.$env{'form.probTitle'}.'" />'."\n";
  'each student in the table below. <font color="red">A score that has already '.  
  'been graded does not get changed using the radio buttons or text box. '.      my $sectionClass;
  'If needed, it has to be changed individually.</font>';      if ($env{'form.section'} eq 'all') {
    $sectionClass='Class </h3>';
     my ($partlist,$handgrade) = &response_type($ENV{'form.url'});      } elsif ($env{'form.section'} eq 'none') {
    $sectionClass='Students in no Section </h3>';
       } else {
    $sectionClass='Students in Section '.$env{'form.section'}.'</h3>';
       }
       $result.='<h3>Assign Common Grade To '.$sectionClass;
       $result.= '<table border=0><tr><td bgcolor="#777777">'."\n".
    '<table border=0><tr bgcolor="#ffffdd"><td>';
       #radio buttons/text box for assigning points for a section or class.
       #handles different parts of a problem
       my ($partlist,$handgrade) = &response_type($url,$symb);
     my %weight = ();      my %weight = ();
     my $ctsparts = 0;      my $ctsparts = 0;
     $result.='<table border="0">';      $result.='<table border="0">';
       my %seen = ();
     for (sort keys(%$handgrade)) {      for (sort keys(%$handgrade)) {
  my ($responsetype,$handgrade)=split(/:/,$$handgrade{$_});   my ($partid,$respid) = split (/_/,$_,2);
  my ($partid,$respid) = split (/_/);   next if $seen{$partid};
    $seen{$partid}++;
    my $handgrade=$$handgrade{$_};
  my $wgt = &Apache::lonnet::EXT('resource.'.$partid.'.weight',$symb);   my $wgt = &Apache::lonnet::EXT('resource.'.$partid.'.weight',$symb);
  $weight{$partid} = $wgt eq '' ? '1' : $wgt;   $weight{$partid} = $wgt eq '' ? '1' : $wgt;
   
  $result.='<input type="hidden" name="partid_'.$ctsparts.'" value="'.$partid.'" />'."\n";   $result.='<input type="hidden" name="partid_'.
  $result.='<tr><td><b>Part ID:</b> '.$partid.'&nbsp; &nbsp;</td><td>';      $ctsparts.'" value="'.$partid.'" />'."\n";
    $result.='<input type="hidden" name="weight_'.
       $partid.'" value="'.$weight{$partid}.'" />'."\n";
    my $display_part=&get_display_part($partid,$url,$symb);
    $result.='<tr><td><b>Part:</b> '.$display_part.'&nbsp; &nbsp;<b>Point:</b> </td><td>';
  $result.='<table border="0"><tr>';     $result.='<table border="0"><tr>';  
  my $ctr = 0;   my $ctr = 0;
  while ($ctr<=$weight{$partid}) { # display radio buttons in a nice table 10 across   while ($ctr<=$weight{$partid}) { # display radio buttons in a nice table 10 across
     $result.= '<td><input type="radio" name="RADVAL_'.$partid.'" '.      $result.= '<td><input type="radio" name="RADVAL_'.$partid.'" '.
  'onclick="javascript:writePoint('.$partid.','.$weight{$partid}.   'onclick="javascript:writePoint(\''.$partid.'\','.$weight{$partid}.
  ','.$ctr.')" />'.$ctr."</td>\n";   ','.$ctr.')" />'.$ctr."</td>\n";
     $result.=(($ctr+1)%10 == 0 ? '</tr><tr>' : '');      $result.=(($ctr+1)%10 == 0 ? '</tr><tr>' : '');
     $ctr++;      $ctr++;
  }   }
  $result.='</tr></table>';   $result.='</tr></table>';
  $result.= '</td><td><b> or </b><input type="text" name="TEXTVAL_'.$partid.'" size="4" '.   $result.= '</td><td><b> or </b><input type="text" name="TEXTVAL_'.
     'onChange="javascript:writePoint('.$partid.','.$weight{$partid}.',\'textval\')" /> /'.      $partid.'" size="4" '.'onChange="javascript:writePoint(\''.
    $partid.'\','.$weight{$partid}.',\'textval\')" /> /'.
     $weight{$partid}.' (problem weight)</td>'."\n";      $weight{$partid}.' (problem weight)</td>'."\n";
  $result.= '</td><td><select name="SELVAL_'.$partid.'"'.   $result.= '</td><td><select name="SELVAL_'.$partid.'"'.
     'onChange="javascript:writeRadText('.$partid.','.$weight{$partid}.')" /> '.      'onChange="javascript:writeRadText(\''.$partid.'\','.
    $weight{$partid}.')"> '.
     '<option selected="on"> </option>'.      '<option selected="on"> </option>'.
     '<option>excused</option></select></td></tr>'."\n";      '<option>excused</option>'.
       '<option>reset status</option></select></td>'.
               '<td><label><input type="checkbox" name="FORCE_'.$partid.'" /> Override "Correct"</label></td></tr>'."\n";
  $ctsparts++;   $ctsparts++;
     }      }
     $result.='</table><input type="hidden" name="totalparts" value="'.$ctsparts.'" />';      $result.='</table>'.'</td></tr></table>'.'</td></tr></table>'."\n".
    '<input type="hidden" name="totalparts" value="'.$ctsparts.'" />';
     $result.='<input type="button" value="Reset" '.      $result.='<input type="button" value="Reset" '.
  'onClick="javascript:resetEntry('.$ctsparts.');" TARGET=_self> &nbsp &nbsp;';   'onClick="javascript:resetEntry('.$ctsparts.');" TARGET=_self>';
     $result.= '<input type="submit" name="submit"  value="Submit Changes" />'."\n";  
   
       #table listing all the students in a section/class
       #header of table
       $result.= '<h3>Assign Grade to Specific Students in '.$sectionClass;
     $result.= '<table border=0><tr><td bgcolor="#777777">'."\n".      $result.= '<table border=0><tr><td bgcolor="#777777">'."\n".
  '<table border=0><tr bgcolor="#deffff">'.   '<table border=0><tr bgcolor="#deffff"><td>&nbsp;<b>No.</b>&nbsp;</td>'.
  '<td><b>Username</b></td><td><b>Fullname</b></td><td><b>Domain</b></td>'."\n";   '<td>'.&nameUserString('header')."</td>\n";
     #get list of parts for this problem      my (@parts) = sort(&getpartlist($url,$symb));
     my (@parts) = sort(&getpartlist($url));      my @partids = ();
     foreach my $part (@parts) {      foreach my $part (@parts) {
  my $display=&Apache::lonnet::metadata($url,$part.'.display');   my $display=&Apache::lonnet::metadata($url,$part.'.display');
  next if ($display =~ /^Number of Attempts/);   $display =~ s|^Number of Attempts|Tries<br />|; # makes the column narrower
  if  (!$display) { $display = &Apache::lonnet::metadata($url,$part.'.name'); }   if  (!$display) { $display = &Apache::lonnet::metadata($url,$part.'.name'); }
    my ($partid) = &split_part_type($part);
           push(@partids, $partid);
    my $display_part=&get_display_part($partid,$url,$symb);
  if ($display =~ /^Partial Credit Factor/) {   if ($display =~ /^Partial Credit Factor/) {
     $_ = $display;      $result.='<td><b>Score Part:</b> '.$display_part.
     my ($partid) = /.*?(\d+).*/;   ' <br /><b>(weight = '.$weight{$partid}.')</b></td>'."\n";
     $result.='<td><b>Score Part '.$partid.'<br>(weight = '.  
  $weight{$partid}.')</b></td>'."\n";  
     next;      next;
    } else {
       $display =~s/\[Part: \Q$partid\E\]/Part:<\/b> $display_part/;
  }   }
  $display =~ s/Problem Status/Grade Status<br>/;   $display =~ s|Problem Status|Grade Status<br />|;
  $result.='<td><b>'.$display.'</b></td>'."\n";   $result.='<td><b>'.$display.'</td>'."\n";
     }      }
     $result.='</tr>';      $result.='</tr>';
   
       my %last_resets = 
    &get_last_resets($symb,$env{'request.course.id'},\@partids);
   
     #get info for each student      #get info for each student
     my ($classlist,$seclist,$ids,$stusec,$fullname) = &getclasslist($ENV{'form.section'},'0');      #list all the students - with points and grade status
       my (undef,undef,$fullname) = &getclasslist($env{'form.section'},'1');
     my $ctr = 0;      my $ctr = 0;
     foreach ( sort(@{ $$classlist{$ENV{'form.section'}} }) ) {      foreach (sort {lc($$fullname{$a}) cmp lc($$fullname{$b}) } keys %$fullname) {
  (my $username = $_) = split(/:/);  
  $result.='<input type="hidden" name="counter'.$ctr.'" value="'.$username.'" />'."\n";  
  $result.=&viewstudentgrade($url,$symb,$ENV{'request.course.id'},  
    $_,$$fullname{$_},\@parts,\%weight);  
  $ctr++;   $ctr++;
    $result.=&viewstudentgrade($url,$symb,$env{'request.course.id'},
      $_,$$fullname{$_},\@parts,\%weight,$ctr,\%last_resets);
     }      }
     $result.='</table></td></tr></table>';      $result.='</table></td></tr></table>';
     $result.='<input type="hidden" name="total" value="'.$ctr.'" />'."\n";      $result.='<input type="hidden" name="total" value="'.$ctr.'" />'."\n";
     $result.='<input type="submit" name="submit" value="Submit Changes" /></form>';      $result.='<input type="button" value="Save" '.
    'onClick="javascript:submit();" TARGET=_self /></form>'."\n";
       if (scalar(%$fullname) eq 0) {
    my $colspan=3+scalar(@parts);
    $result='<font color="red">There are no students in section "'.$env{'form.section'}.
       '" with enrollment status "'.$env{'form.Status'}.'" to modify or grade.</font>';
       }
     $result.=&show_grading_menu_form($symb,$url);      $result.=&show_grading_menu_form($symb,$url);
     return $result;      return $result;
 }  }
   
   #--- call by previous routine to display each student
 sub viewstudentgrade {  sub viewstudentgrade {
     my ($url,$symb,$courseid,$student,$fullname,$parts,$weight) = @_;      my ($url,$symb,$courseid,$student,$fullname,$parts,$weight,$ctr,$last_resets) = @_;
     my ($username,$domain) = split(/:/,$student);      my ($uname,$udom) = split(/:/,$student);
     my %record=&Apache::lonnet::restore($symb,$courseid,$domain,$username);      $student=~s/:/_/;
     my $result='<tr bgcolor="#ffffdd"><td>'.      my %record=&Apache::lonnet::restore($symb,$courseid,$udom,$uname);
  '<a href="javascript:viewOneStudent(\''.$username.'\')"; TARGET=_self>'.$username.'</a>'.      my %aggregates = (); 
  '</td><td>'.$fullname.'</td><td align="middle">'.$domain.'</td>'."\n";      my $result='<tr bgcolor="#ffffdd"><td align="right">'.
     foreach my $part (@$parts) {   '<input type="hidden" name="ctr'.($ctr-1).'" value="'.$student.'" />'.
  my ($temp,$part,$type)=split(/_/,$part);   "\n".$ctr.'&nbsp;</td><td>&nbsp;'.
    '<a href="javascript:viewOneStudent(\''.$uname.'\',\''.$udom.
    '\')"; TARGET=_self>'.$fullname.'</a> '.
    '<font color="#999999">('.$uname.($env{'user.domain'} eq $udom ? '' : ':'.$udom).')</font></td>'."\n";
       foreach my $apart (@$parts) {
    my ($part,$type) = &split_part_type($apart);
  my $score=$record{"resource.$part.$type"};   my $score=$record{"resource.$part.$type"};
  next if $type eq 'tries';          $result.='<td align="middle">';
           my ($aggtries,$totaltries);
           unless (exists($aggregates{$part})) {
       $totaltries = $record{'resource.'.$part.'.tries'};
   
       $aggtries = $totaltries;
               if ($$last_resets{$part}) {  
                   $aggtries = &get_num_tries(\%record,$$last_resets{$part},
      $part);
               }
               $result.='<input type="hidden" name="'.
                   'GD_'.$student.'_'.$part.'_aggtries" value="'.$aggtries.'" />'."\n";
               $result.='<input type="hidden" name="'.
                   'GD_'.$student.'_'.$part.'_totaltries" value="'.$totaltries.'" />'."\n";
               $aggregates{$part} = 1;
           }
  if ($type eq 'awarded') {   if ($type eq 'awarded') {
     my $pts = $score eq '' ? '' : $score*$$weight{$part};      my $pts = $score eq '' ? '' : $score*$$weight{$part};
     $result.='<input type="hidden" name="'.      $result.='<input type="hidden" name="'.
  'GRADE_'.$username.'_'.$part.'_awarded_save" value="'.$pts.'" />'."\n";   'GD_'.$student.'_'.$part.'_awarded_s" value="'.$pts.'" />'."\n";
     $result.='<td align="middle"><input type="text" name="'.      $result.='<input type="text" name="'.
  'GRADE_'.$username.'_'.$part.'_awarded"'.   'GD_'.$student.'_'.$part.'_awarded" '.
  'onChange="javascript:changeSelect('.$part.',\''.$username.'\')" value="'.   'onChange="javascript:changeSelect(\''.$part.'\',\''.$student.
  $pts.'" size="4" /></td>'."\n";   '\')" value="'.$pts.'" size="4" /></td>'."\n";
  } elsif ($type eq 'solved') {   } elsif ($type eq 'solved') {
     my ($status,$foo)=split(/_/,$score,2);      my ($status,$foo)=split(/_/,$score,2);
     $status = 'nothing' if ($status eq '');      $status = 'nothing' if ($status eq '');
       $result.='<input type="hidden" name="'.'GD_'.$student.'_'.
    $part.'_solved_s" value="'.$status.'" />'."\n";
       $result.='&nbsp;<select name="'.
    'GD_'.$student.'_'.$part.'_solved" '.
    'onChange="javascript:changeOneScore(\''.$part.'\',\''.$student.'\')" >'."\n";
       $result.= (($status eq 'excused') ? '<option> </option><option selected="on">excused</option>' 
    : '<option selected="on"> </option><option>excused</option>')."\n";
       $result.='<option>reset status</option>';
       $result.="</select>&nbsp;</td>\n";
    } else {
     $result.='<input type="hidden" name="'.      $result.='<input type="hidden" name="'.
  'GRADE_'.$username.'_'.$part.'_solved_save" value="'.$status.'" />'."\n";   'GD_'.$student.'_'.$part.'_'.$type.'_s" value="'.$score.'" />'.
     $result.='<td align="middle"><select name="'.      "\n";
  'GRADE_'.$username.'_'.$part.'_solved" '.      $result.='<input type="text" name="'.
  'onChange="javascript:changeOneScore('.$part.',\''.$username.'\')" >'."\n";   'GD_'.$student.'_'.$part.'_'.$type.'" '.
     my $optsel = '<option selected="on"> </option><option>excused</option>'."\n";   'value="'.$score.'" size="4" /></td>'."\n";
     $optsel = '<option> </option><option selected="on">excused</option>'."\n"  
  if ($status eq 'excused');  
     $result.=$optsel;  
     $result.="</select></td>\n";  
  }   }
     }      }
     $result.='</tr>';      $result.='</tr>';
     return $result;      return $result;
 }  }
   
   #--- change scores for all the students in a section/class
   #    record does not get update if unchanged
 sub editgrades {  sub editgrades {
     my ($request) = @_;      my ($request) = @_;
   
     my $symb=$ENV{'form.symb'};      my $symb=$env{'form.symb'};
     if ($symb eq '') { $request->print("Unable to handle ambiguous references:$symb:$ENV{'form.url'}"); return ''; }      my $url =$env{'form.url'};
     my $url=$ENV{'form.url'};      my $title='<h3><font color="#339933">Current Grade Status</font></h3>';
       $title.='<font size=+1><b>Current Resource: </b>'.$env{'form.probTitle'}.'</font><br />'."\n";
       $title.='<font size=+1><b>Section: </b>'.$env{'form.section'}.'</font>'."\n";
   
       my $result= '<table border="0"><tr><td bgcolor="#777777">'."\n";
       $result.= '<table border="0"><tr bgcolor="#deffff">'.
    '<td rowspan=2 valign="center">&nbsp;<b>No.</b>&nbsp;</td>'.
    '<td rowspan=2 valign="center">'.&nameUserString('header')."</td>\n";
   
       my %scoreptr = (
       'correct'  =>'correct_by_override',
       'incorrect'=>'incorrect_by_override',
       'excused'  =>'excused',
       'ungraded' =>'ungraded_attempted',
       'nothing'  => '',
       );
       my ($classlist,undef,$fullname) = &getclasslist($env{'form.section'},'0');
   
     my $result.='<form action="/adm/grades" method="post">'."\n".      my (@partid);
  '<input type="hidden" name="symb" value="'.$symb.'" />'."\n".      my %weight = ();
  '<input type="hidden" name="url" value="'.$url.'" />'."\n".      my %columns = ();
  '<input type="hidden" name="command" value="viewgrades" />'."\n".      my ($i,$ctr,$count,$rec_update) = (0,0,0,0);
  '<input type="submit" name="submit" value="See Grades" /> <br />'."\n";  
       
     my (@parts) = &getpartlist($url);  
     my ($classlist) = &getclasslist($ENV{'form.section'},'0');  
     foreach my $student ( sort(@{ $$classlist{$ENV{'form.section'}} }) ) {  
  $result.=&setstudentgrade($url,$symb,$ENV{'request.course.id'},$student,@parts);  
     }  
   
     $result.='<input type="submit" name="submit" value="See Grades" /></table></form>';  
     return $result;  
 }  
   
       my (@parts) = sort(&getpartlist($url,$symb));
       my $header;
       while ($ctr < $env{'form.totalparts'}) {
    my $partid = $env{'form.partid_'.$ctr};
    push @partid,$partid;
    $weight{$partid} = $env{'form.weight_'.$partid};
    $ctr++;
       }
       foreach my $partid (@partid) {
    $header .= '<td align="center">&nbsp;<b>Old Score</b>&nbsp;</td>'.
       '<td align="center">&nbsp;<b>New Score</b>&nbsp;</td>';
    $columns{$partid}=2;
    foreach my $stores (@parts) {
       my ($part,$type) = &split_part_type($stores);
       if ($part !~ m/^\Q$partid\E/) { next;}
       if ($type eq 'awarded' || $type eq 'solved') { next; }
       my $display=&Apache::lonnet::metadata($url,$stores.'.display');
       $display =~ s/\[Part: (\w)+\]//;
       $display =~ s/Number of Attempts/Tries/;
       $header .= '<td align="center">&nbsp;<b>Old '.$display.'</b>&nbsp;</td>'.
    '<td align="center">&nbsp;<b>New '.$display.'</b>&nbsp;</td>';
       $columns{$partid}+=2;
    }
       }
       foreach my $partid (@partid) {
    my $display_part=&get_display_part($partid,$url,$symb);
    $result .= '<td colspan="'.$columns{$partid}.
       '" align="center"><b>Part:</b> '.$display_part.
       ' (Weight = '.$weight{$partid}.')</td>';
   
       }
       $result .= '</tr><tr bgcolor="#deffff">';
       $result .= $header;
       $result .= '</tr>'."\n";
       my $noupdate;
       my ($updateCtr,$noupdateCtr) = (1,1);
       for ($i=0; $i<$env{'form.total'}; $i++) {
    my $line;
    my $user = $env{'form.ctr'.$i};
    my $usercolon = $user;
    $usercolon =~s/_/:/;
    my ($uname,$udom)=split(/_/,$user);
    my %newrecord;
    my $updateflag = 0;
    $line .= '<td>'.&nameUserString(undef,$$fullname{$usercolon},$uname,$udom).'</td>';
    my $usec=$classlist->{"$uname:$udom"}[5];
    if (!&canmodify($usec)) {
       my $numcols=scalar(@partid)*4+2;
       $noupdate.=$line."<td colspan=\"$numcols\"><font color=\"red\">Not allowed to modify student</font></td></tr>";
       next;
    }
           my %aggregate = ();
           my $aggregateflag = 0;
    foreach (@partid) {
       my $old_aw    = $env{'form.GD_'.$user.'_'.$_.'_awarded_s'};
       my $old_part_pcr = $old_aw/($weight{$_} ne '0' ? $weight{$_}:1);
       my $old_part  = $old_aw eq '' ? '' : $old_part_pcr;
       my $old_score = $scoreptr{$env{'form.GD_'.$user.'_'.$_.'_solved_s'}};
       my $awarded   = $env{'form.GD_'.$user.'_'.$_.'_awarded'};
       my $pcr       = $awarded/($weight{$_} ne '0' ? $weight{$_} : 1);
       my $partial   = $awarded eq '' ? '' : $pcr;
       my $score;
       if ($partial eq '') {
    $score = $scoreptr{$env{'form.GD_'.$user.'_'.$_.'_solved_s'}};
       } elsif ($partial > 0) {
    $score = 'correct_by_override';
       } elsif ($partial == 0) {
    $score = 'incorrect_by_override';
       }
       my $dropMenu = $env{'form.GD_'.$user.'_'.$_.'_solved'};
       $score = 'excused' if (($dropMenu eq 'excused') && ($score ne 'excused'));
   
 #FIXME need to look at the metadata <stores> spec on what type of data to accept and provide an      if ($dropMenu eq 'reset status' &&
 #interface based on that, also do that to above function.   $old_score ne '') { # ignore if no previous attempts => nothing to reset
 sub setstudentgrade {   $newrecord{'resource.'.$_.'.tries'} = 0;
     my ($url,$symb,$courseid,$student,@parts) = @_;   $newrecord{'resource.'.$_.'.solved'} = '';
     my $result ='';   $newrecord{'resource.'.$_.'.award'} = '';
     my ($stuname,$domain) = split(/:/,$student);   $newrecord{'resource.'.$_.'.awarded'} = 0;
     my %record=&Apache::lonnet::restore($symb,$courseid,$domain,$stuname);   $newrecord{'resource.'.$_.'.regrader'}="$env{'user.name'}:$env{'user.domain'}";
     my %newrecord;   $updateflag = 1;
                   if ($env{'form.GD_'.$user.'_'.$_.'_aggtries'} > 0) {
                       my $aggtries = $env{'form.GD_'.$user.'_'.$_.'_aggtries'};
                       my $totaltries = $env{'form.GD_'.$user.'_'.$_.'_totaltries'};
                       my $solvedstatus = $env{'form.GD_'.$user.'_'.$_.'_solved_s'};
                       &decrement_aggs($symb,$_,\%aggregate,$aggtries,$totaltries,$solvedstatus);
                       $aggregateflag = 1;
                   }
       } elsif (!($old_part eq $partial && $old_score eq $score)) {
    $updateflag = 1;
    $newrecord{'resource.'.$_.'.awarded'}  = $partial if $partial ne '';
    $newrecord{'resource.'.$_.'.solved'}   = $score;
    $rec_update++;
       }
   
     foreach my $part (@parts) {      $line .= '<td align="center">'.$old_aw.'&nbsp;</td>'.
  my ($temp,$part,$type)=split(/_/,$part);   '<td align="center">'.$awarded.
  my $oldscore=$record{"resource.$part.$type"};   ($score eq 'excused' ? $score : '').'&nbsp;</td>';
  my $newscore=$ENV{"form.GRADE.$student.$part.$type"};  
  if ($type eq 'solved') {  
     my $update=0;      my $partid=$_;
     if ($newscore eq 'nothing' ) {      foreach my $stores (@parts) {
  if ($oldscore ne '') {   my ($part,$type) = &split_part_type($stores);
     $update=1;   if ($part !~ m/^\Q$partid\E/) { next;}
     $newscore = '';   if ($type eq 'awarded' || $type eq 'solved') { next; }
    my $old_aw    = $env{'form.GD_'.$user.'_'.$part.'_'.$type.'_s'};
    my $awarded   = $env{'form.GD_'.$user.'_'.$part.'_'.$type};
    if ($awarded ne '' && $awarded ne $old_aw) {
       $newrecord{'resource.'.$part.'.'.$type}= $awarded;
       $newrecord{'resource.'.$part.'.regrader'}="$env{'user.name'}:$env{'user.domain'}";
       $updateflag=1;
  }   }
     } elsif ($oldscore !~ m/^$newscore/) {   $line .= '<td align="center">'.$old_aw.'&nbsp;</td>'.
  $update=1;      '<td align="center">'.$awarded.'&nbsp;</td>';
  $result.="Updating $stuname to $newscore<br />\n";  
  if ($newscore eq 'correct')   { $newscore = 'correct_by_override'; }  
  if ($newscore eq 'incorrect') { $newscore = 'incorrect_by_override'; }  
  if ($newscore eq 'excused')   { $newscore = 'excused'; }  
  if ($newscore eq 'ungraded')  { $newscore = 'ungraded_attempted'; }  
     } else {  
  #$result.="$stuname:$part:$type:unchanged  $oldscore to $newscore:<br />\n";  
     }  
     if ($update) { $newrecord{"resource.$part.$type"}=$newscore; }  
  } else {  
     if ($oldscore ne $newscore) {  
  $newrecord{"resource.$part.$type"}=$newscore;  
  $result.="Updating $student"."'s status for $part.$type to $newscore<br />\n";  
     } else {  
  #$result.="$stuname:$part:$type:unchanged  $oldscore to $newscore:<br />\n";  
     }      }
  }   }
     }   $line.='</tr>'."\n";
     if ( scalar(keys(%newrecord)) > 0 ) {   if ($updateflag) {
  $newrecord{'resource.regrader'}="$ENV{'user.name'}:$ENV{'user.domain'}";      $count++;
 #       &Apache::lonnet::cstore(\%newrecord,$symb,$courseid,$domain,$stuname);      &Apache::lonnet::cstore(\%newrecord,$symb,$env{'request.course.id'},
       $udom,$uname);
  $result.="Stored away ".scalar(keys(%newrecord))." elements.<br />\n";      $result.='<tr bgcolor="#ffffde"><td align="right">&nbsp;'.$updateCtr.'&nbsp;</td>'.$line;
     }      $updateCtr++;
     return $result;   } else {
 }      $noupdate.='<tr bgcolor="#ffffde"><td align="right">&nbsp;'.$noupdateCtr.'&nbsp;</td>'.$line;
       $noupdateCtr++;
   
 sub sub_page_js {  
     my $request = shift;  
     $request->print(<<SUBJAVASCRIPT);  
 <script type="text/javascript" language="javascript">  
   function updateRadio(radioButton,formtextbox,formsel,scores) {  
      var pts = formtextbox.value;  
      var resetbox =false;  
      if (isNaN(pts) || pts < 0) {  
  alert("A number equal or greater than 0 is expected. Entered value = "+pts);  
  for (var i=0; i<radioButton.length; i++) {  
    if (radioButton[i].checked) {  
       formtextbox.value = i;  
       resetbox = true;  
    }  
  }  
  if (!resetbox) {  
    formtextbox.value = "";  
  }  
  return;  
     }  
   
     for (var i=0; i<radioButton.length; i++) {  
  radioButton[i].checked=false;  
  if (pts == i) {  
    radioButton[i].checked=true;  
  }  
     }  
     updateSelect(formsel);  
     scores.value = "0";  
   }  
   
   function writeBox(formrad,formsel,pts,scores) {  
     formrad.value = pts;  
     scores.value = "0";  
     updateSelect(formsel,pts);  
     return;  
   }  
   
   function clearRadBox(radioButton,formbox,formsel,scores) {  
     for (var i=0; i<formsel.length; i++) {  
  if (formsel[i].selected) {  
     var selectx=i;  
  }   }
           if ($aggregateflag) {
               &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
                         $env{'course.'.$env{'request.course.id'}.'.domain'},
                         $env{'course.'.$env{'request.course.id'}.'.num'});
           }
     }      }
     if (selectx == scores.value) { return };      if ($noupdate) {
     formbox.value = "";  # my $numcols=(scalar(@partid)*(scalar(@parts)-1)*2)+3;
     for (var i=0; i<radioButton.length; i++) {   my $numcols=scalar(@partid)*4+2;
  radioButton[i].checked=false;   $result .= '<tr bgcolor="#ffffff"><td align="center" colspan="'.$numcols.'">No Changes Occurred For the Students Below</td></tr><tr bgcolor="#ffffde">'.$noupdate;
     }      }
     scores.value = selectx;      $result .= '</table></td></tr></table>'."\n".
   }   &show_grading_menu_form ($symb,$url);
       my $msg = '<br /><b>Number of records updated = '.$rec_update.
   function updateSelect(formsel) {   ' for '.$count.' student'.($count <= 1 ? '' : 's').'.</b><br />'.
     formsel[0].selected = true;   '<b>Total number of students = '.$env{'form.total'}.'</b><br />';
     return;      return $title.$msg.$result;
   }  }
   
 //===================== Show list of keywords ====================  sub split_part_type {
   function keywords(keyform) {      my ($partstr) = @_;
     var keywds = keyform.value;      my ($temp,@allparts)=split(/_/,$partstr);
     var nret = prompt("Keywords list, separated by a space. Add/delete to list if desired.",keywds);      my $type=pop(@allparts);
     if (nret==null) return;      my $part=join('.',@allparts);
     keyform.value = nret;      return ($part,$type);
     return;  
   }  
   
 //===================== Script to view submitted by ==================  
   function viewSubmitter(submitter) {  
     document.SCORE.refresh.value = "on";  
     document.SCORE.NCT.value = "1";  
     document.SCORE.unamedom0.value = submitter;  
     document.SCORE.submit();  
     return;  
   }  
   
 //===================== Script to add keyword(s) ==================  
   function getSel() {  
     if (document.getSelection) txt = document.getSelection();  
     else if (document.selection) txt = document.selection.createRange().text;  
     else return;  
     var cleantxt = txt.replace(new RegExp('([\\f\\n\\r\\t\\v ])+', 'g')," ");  
     if (cleantxt=="") {  
  alert("Select a word or group of words from document and then click this link.");  
  return;  
     }  
     var nret = prompt("Add selection to keyword list? Edit if desired.",cleantxt);  
     if (nret==null) return;  
     var curlist = document.SCORE.keywords.value;  
     document.SCORE.keywords.value = curlist+" "+nret;  
     return;  
   }  
   
 //====================== Script for composing message ==============  
   function msgCenter(msgform,usrctr,fullname) {  
     var Nmsg  = msgform.savemsgN.value;  
     savedMsgHeader(Nmsg,usrctr,fullname);  
     var subject = msgform.msgsub.value;  
     var rtrchk  = eval("document.SCORE.includemsg"+usrctr);  
     var msgchk = rtrchk.value;  
 //    alert("checked=>"+msgchk);  
     re = /msgsub/;  
     var shwsel = "";  
     if (re.test(msgchk)) { shwsel = "checked" }  
     displaySubject(subject,shwsel);  
     for (var i=1; i<=Nmsg; i++) {  
  var testpt = "savemsg"+i+",";  
  re = /testpt/;  
  shwsel = "";  
  if (re.test(msgchk)) { shwsel = "checked" }  
  var message = eval("document.SCORE.savemsg"+i+".value");  
  displaySavedMsg(i,message,shwsel);  
     }  
     newmsg = eval("document.SCORE.newmsg"+usrctr+".value");  
     shwsel = "";  
     re = /newmsg/;  
     if (re.test(msgchk)) { shwsel = "checked" }  
     newMsg(newmsg,shwsel);  
     msgTail();   
     return;  
   }  
   
   function savedMsgHeader(Nmsg,usrctr,fullname) {  
     var height = 30*Nmsg+250;  
     var scrollbar = "no";  
     if (height > 600) {  
  height = 600;  
  scrollbar = "yes";  
     }  
 /*    if (window.pWin)  
  window.pWin.close(); */  
     pWin = window.open('', 'MessageCenter', 'toolbar=no,location=no,scrollbars='+scrollbar+',screenx=70,screeny=75,width=600,height='+height);  
     pWin.document.write("<html><head>");  
     pWin.document.write("<title>Message Central</title>");  
   
     pWin.document.write("<script language=javascript>");  
     pWin.document.write("function checkInput() {");  
     pWin.document.write("  opener.document.SCORE.msgsub.value = document.msgcenter.msgsub.value;");  
     pWin.document.write("  var nmsg   = opener.document.SCORE.savemsgN.value;");  
     pWin.document.write("  var usrctr = document.msgcenter.usrctr.value;");  
     pWin.document.write("  var newval = eval(\\"opener.document.SCORE.newmsg\\"+usrctr);");  
     pWin.document.write("  newval.value = document.msgcenter.newmsg.value;");  
   
     pWin.document.write("  var msgchk = \\"\\";");  
     pWin.document.write("  if (document.msgcenter.subchk.checked) {");  
     pWin.document.write("     msgchk = \\"msgsub,\\";");  
     pWin.document.write("  }");  
     pWin.document.write(   "for (var i=1; i<=nmsg; i++) {");  
     pWin.document.write("      var opnmsg = eval(\\"opener.document.SCORE.savemsg\\"+i);");  
     pWin.document.write("      var frmmsg = eval(\\"document.msgcenter.msg\\"+i);");  
     pWin.document.write("      opnmsg.value = frmmsg.value;");  
     pWin.document.write("      var chkbox = eval(\\"document.msgcenter.msgn\\"+i);");  
     pWin.document.write("      if (chkbox.checked) {");  
     pWin.document.write("         msgchk += \\"savemsg\\"+i+\\",\\";");  
     pWin.document.write("      }");  
     pWin.document.write("  }");  
     pWin.document.write("  if (document.msgcenter.newmsgchk.checked) {");  
     pWin.document.write("     msgchk += \\"newmsg\\"+usrctr;");  
     pWin.document.write("  }");  
     pWin.document.write("  var includemsg = eval(\\"opener.document.SCORE.includemsg\\"+usrctr);");  
     pWin.document.write("  includemsg.value = msgchk;");  
   
 //    pWin.document.write("  alert(\\"slected=\\"+msgchk)");  
     pWin.document.write("  self.close()");  
   
     pWin.document.write("}");  
   
     pWin.document.write("<");  
     pWin.document.write("/script>");  
   
     pWin.document.write("</head><body bgcolor=white>");  
   
     pWin.document.write("<form action=\\"inactive\\" name=\\"msgcenter\\">");  
     pWin.document.write("<input value=\\""+usrctr+"\\" name=\\"usrctr\\" type=\\"hidden\\">");  
     pWin.document.write("<font color=\\"green\\" size=+1>&nbsp;Compose Message for \"+fullname+\"</font><br><br>");  
   
     pWin.document.write("<table border=0 width=100%><tr><td bgcolor=\\"#777777\\">");  
     pWin.document.write("<table border=0 width=100%><tr bgcolor=\\"#ddffff\\">");  
     pWin.document.write("<td><b>Type</b></td><td><b>Include</b></td><td><b>Message</td></tr>");  
 }  }
     function displaySubject(msg,shwsel) {  
     pWin.document.write("<tr bgcolor=\\"#ffffdd\\">");  
     pWin.document.write("<td>Subject</td>");  
     pWin.document.write("<td align=\\"center\\"><input name=\\"subchk\\" type=\\"checkbox\\"" +shwsel+"></td>");  
     pWin.document.write("<td><input name=\\"msgsub\\" type=\\"text\\" value=\\""+msg+" \\"size=\\"60\\" maxlength=\\"80\\"></td></tr>");  
 }  
   
 function displaySavedMsg(ctr,msg,shwsel) {  
     pWin.document.write("<tr bgcolor=\\"#ffffdd\\">");  
     pWin.document.write("<td align=\\"center\\">"+ctr+"</td>");  
     pWin.document.write("<td align=\\"center\\"><input name=\\"msgn"+ctr+"\\" type=\\"checkbox\\"" +shwsel+"></td>");  
     pWin.document.write("<td><input name=\\"msg"+ctr+"\\" type=\\"text\\" value=\\""+msg+" \\" size=\\"60\\" maxlength=\\"80\\"></td></tr>");  
 }  
   
   function newMsg(newmsg,shwsel) {  
     pWin.document.write("<tr bgcolor=\\"#ffffdd\\">");  
     pWin.document.write("<td align=\\"center\\">New</td>");  
     pWin.document.write("<td align=\\"center\\"><input name=\\"newmsgchk\\" type=\\"checkbox\\"" +shwsel+"></td>");  
     pWin.document.write("<td><input name=\\"newmsg\\" type=\\"text\\" onchange=\\"javascript:this.form.newmsgchk.checked=true\\" value=\\""+newmsg+" \\" size=\\"60\\" maxlength=\\"80\\"></td></tr>");  
 }  
   
   function msgTail() {  
     pWin.document.write("</table>");  
     pWin.document.write("</td></tr></table>&nbsp;");  
     pWin.document.write("<input type=\\"button\\" value=\\"Save\\" onClick=\\"javascript:checkInput()\\">&nbsp;&nbsp;");  
     pWin.document.write("<input type=\\"button\\" value=\\"Cancel\\" onClick=\\"self.close()\\"><br><br>");  
     pWin.document.write("</form>");  
     pWin.document.write("</body></html>");  
 }  
   
 //====================== Script for keyword highlight options ==============  
   function kwhighlight() {  
     var kwclr    = document.SCORE.kwclr.value;  
     var kwsize   = document.SCORE.kwsize.value;  
     var kwstyle  = document.SCORE.kwstyle.value;  
     var redsel = "";  
     var grnsel = "";  
     var blusel = "";  
     if (kwclr=="red")   {var redsel="checked"};  
     if (kwclr=="green") {var grnsel="checked"};  
     if (kwclr=="blue")  {var blusel="checked"};  
     var sznsel = "";  
     var sz1sel = "";  
     var sz2sel = "";  
     if (kwsize=="0")  {var sznsel="checked"};  
     if (kwsize=="+1") {var sz1sel="checked"};  
     if (kwsize=="+2") {var sz2sel="checked"};  
     var synsel = "";  
     var syisel = "";  
     var sybsel = "";  
     if (kwstyle=="")    {var synsel="checked"};  
     if (kwstyle=="<i>") {var syisel="checked"};  
     if (kwstyle=="<b>") {var sybsel="checked"};  
     highlightCentral();  
     highlightbody('red','red',redsel,'0','normal',sznsel,'','normal',synsel);  
     highlightbody('green','green',grnsel,'+1','+1',sz1sel,'<i>','italic',syisel);  
     highlightbody('blue','blue',blusel,'+2','+2',sz2sel,'<b>','bold',sybsel);  
     highlightend();  
     return;  
   }  
   
   
   function highlightCentral() {  #------------- end of section for handling grading by section/class ---------
     hwdWin = window.open('', 'KeywordHighlightCentral', 'toolbar=no,location=no,scrollbars=no,width=400,height=300,screenx=100,screeny=75');  #
     hwdWin.document.write("<html><head>");  #----------------------------------------------------------------------------
     hwdWin.document.write("<title>Highlight Central</title>");  
   
     hwdWin.document.write("<script language=javascript>");  
     hwdWin.document.write("function updateChoice(flag) {");  
     hwdWin.document.write("  opener.document.SCORE.kwclr.value = radioSelection(document.hlCenter.kwdclr);");  
     hwdWin.document.write("  opener.document.SCORE.kwsize.value = radioSelection(document.hlCenter.kwdsize);");  
     hwdWin.document.write("  opener.document.SCORE.kwstyle.value = radioSelection(document.hlCenter.kwdstyle);");  
 //    hwdWin.document.write("     var kwords=opener.document.SCORE.keywords.value;");  
 //    hwdWin.document.write("     alert(\\"keywords=\\"+opener.document.SCORE.keywords.value);");  
 //    hwdWin.document.write("     return;");  
   
     hwdWin.document.write("  if (flag==1){");  
     hwdWin.document.write("     opener.document.SCORE.refresh.value = \\"on\\";");  
     hwdWin.document.write("     if (opener.document.SCORE.keywords.value!=\\"\\"){");  
     hwdWin.document.write("        opener.document.SCORE.submit();");  
     hwdWin.document.write("     }");  
     hwdWin.document.write("   }");  
     hwdWin.document.write("  self.close()");  
     hwdWin.document.write("}");  
   
     hwdWin.document.write("function radioSelection(radioButton) {");  
     hwdWin.document.write("    var selection=null;");  
     hwdWin.document.write("    for (var i=0; i<radioButton.length; i++) {");  
     hwdWin.document.write("        if (radioButton[i].checked) {");  
     hwdWin.document.write("            selection=radioButton[i].value;");  
     hwdWin.document.write("            return selection;");  
     hwdWin.document.write("        }");  
     hwdWin.document.write("    }");  
     hwdWin.document.write("}");  
   
     hwdWin.document.write("<");  
     hwdWin.document.write("/script>");  
   
     hwdWin.document.write("</head><body bgcolor=white>");  
   
     hwdWin.document.write("<form action=\\"inactive\\" name=\\"hlCenter\\">");  
     hwdWin.document.write("<font color=\\"green\\" size=+1>&nbsp;Keyword Highlight Options</font><br><br>");  
   
     hwdWin.document.write("<table border=0 width=100%><tr><td bgcolor=\\"#777777\\">");  
     hwdWin.document.write("<table border=0 width=100%><tr bgcolor=\\"#ddffff\\">");  
     hwdWin.document.write("<td><b>Text Color</b></td><td><b>Font Size</b></td><td><b>Font Style</td></tr>");  
   }  
   
   function highlightbody(clrval,clrtxt,clrsel,szval,sztxt,szsel,syval,sytxt,sysel) {   
     hwdWin.document.write("<tr bgcolor=\\"#ffffdd\\">");  
     hwdWin.document.write("<td align=\\"left\\">");  
     hwdWin.document.write("<input name=\\"kwdclr\\" type=\\"radio\\" value=\\""+clrval+"\\" "+clrsel+">&nbsp;"+clrtxt+"</td>");  
     hwdWin.document.write("<td align=\\"left\\">");  
     hwdWin.document.write("<input name=\\"kwdsize\\" type=\\"radio\\" value=\\""+szval+"\\" "+szsel+">&nbsp;"+sztxt+"</td>");  
     hwdWin.document.write("<td align=\\"left\\">");  
     hwdWin.document.write("<input name=\\"kwdstyle\\" type=\\"radio\\" value=\\""+syval+"\\" "+sysel+">&nbsp;"+sytxt+"</td>");  
     hwdWin.document.write("</tr>");  
   }  
   
   function highlightend() {   
     hwdWin.document.write("</table>");  
     hwdWin.document.write("</td></tr></table>&nbsp;");  
     hwdWin.document.write("<input type=\\"button\\" value=\\"Save\\" onClick=\\"javascript:updateChoice(0)\\">&nbsp;&nbsp;");  
     hwdWin.document.write("<input type=\\"button\\" value=\\"Save & Refresh\\" onClick=\\"javascript:updateChoice(1)\\">&nbsp;&nbsp;");  
     hwdWin.document.write("<input type=\\"button\\" value=\\"Cancel\\" onClick=\\"self.close()\\"><br><br>");  
     hwdWin.document.write("</form>");  
     hwdWin.document.write("</body></html>");  
   }  
   
 </script>  
 SUBJAVASCRIPT  
 }  
   
   #----------------------------------------------------------------------------
   #
   #-------------------------- Next few routines handles grading by csv upload
   #
   #--- Javascript to handle csv upload
 sub csvupload_javascript_reverse_associate {  sub csvupload_javascript_reverse_associate {
       my $error1=&mt('You need to specify the username or ID');
       my $error2=&mt('You need to specify at least one grading field');
   return(<<ENDPICK);    return(<<ENDPICK);
   function verify(vf) {    function verify(vf) {
     var foundsomething=0;      var foundsomething=0;
     var founduname=0;      var founduname=0;
     var founddomain=0;      var foundID=0;
     for (i=0;i<=vf.nfields.value;i++) {      for (i=0;i<=vf.nfields.value;i++) {
       tw=eval('vf.f'+i+'.selectedIndex');        tw=eval('vf.f'+i+'.selectedIndex');
       if (i==0 && tw!=0) { founduname=1; }        if (i==0 && tw!=0) { foundID=1; }
       if (i==1 && tw!=0) { founddomain=1; }        if (i==1 && tw!=0) { founduname=1; }
       if (i!=0 && i!=1 && tw!=0) { foundsomething=1; }        if (i!=0 && i!=1 && i!=2 && tw!=0) { foundsomething=1; }
     }      }
     if (founduname==0 || founddomain==0) {      if (founduname==0 && foundID==0) {
       alert('You need to specify at both the username and domain');   alert('$error1');
       return;   return;
     }      }
     if (foundsomething==0) {      if (foundsomething==0) {
       alert('You need to specify at least one grading field');   alert('$error2');
       return;   return;
     }      }
     vf.submit();      vf.submit();
   }    }
Line 1718  ENDPICK Line 2951  ENDPICK
 }  }
   
 sub csvupload_javascript_forward_associate {  sub csvupload_javascript_forward_associate {
       my $error1=&mt('You need to specify the username or ID');
       my $error2=&mt('You need to specify at least one grading field');
   return(<<ENDPICK);    return(<<ENDPICK);
   function verify(vf) {    function verify(vf) {
     var foundsomething=0;      var foundsomething=0;
     var founduname=0;      var founduname=0;
     var founddomain=0;      var foundID=0;
     for (i=0;i<=vf.nfields.value;i++) {      for (i=0;i<=vf.nfields.value;i++) {
       tw=eval('vf.f'+i+'.selectedIndex');        tw=eval('vf.f'+i+'.selectedIndex');
       if (tw==1) { founduname=1; }        if (tw==1) { foundID=1; }
       if (tw==2) { founddomain=1; }        if (tw==2) { founduname=1; }
       if (tw>2) { foundsomething=1; }        if (tw>3) { foundsomething=1; }
     }      }
     if (founduname==0 || founddomain==0) {      if (founduname==0 && foundID==0) {
       alert('You need to specify at both the username and domain');   alert('$error1');
       return;   return;
     }      }
     if (foundsomething==0) {      if (foundsomething==0) {
       alert('You need to specify at least one grading field');   alert('$error2');
       return;   return;
     }      }
     vf.submit();      vf.submit();
   }    }
Line 1754  ENDPICK Line 2989  ENDPICK
   
 sub csvuploadmap_header {  sub csvuploadmap_header {
     my ($request,$symb,$url,$datatoken,$distotal)= @_;      my ($request,$symb,$url,$datatoken,$distotal)= @_;
     my $result;  
     my $javascript;      my $javascript;
     if ($ENV{'form.upfile_associate'} eq 'reverse') {      if ($env{'form.upfile_associate'} eq 'reverse') {
  $javascript=&csvupload_javascript_reverse_associate();   $javascript=&csvupload_javascript_reverse_associate();
     } else {      } else {
  $javascript=&csvupload_javascript_forward_associate();   $javascript=&csvupload_javascript_forward_associate();
     }      }
   
       my ($result) = &showResourceInfo($url,$env{'form.probTitle'});
       my $checked=(($env{'form.noFirstLine'})?' checked="checked"':'');
       my $ignore=&mt('Ignore First Line');
     $request->print(<<ENDPICK);      $request->print(<<ENDPICK);
 <form method="post" enctype="multipart/form-data" action="/adm/grades" name="gradesupload">  <form method="post" enctype="multipart/form-data" action="/adm/grades" name="gradesupload">
 <h3>Uploading Class Grades for resource $url</h3>  <h3><font color="#339933">Uploading Class Grades</font></h3>
   $result
 <hr>  <hr>
 <h3>Identify fields</h3>  <h3>Identify fields</h3>
 Total number of records found in file: $distotal <hr />  Total number of records found in file: $distotal <hr />
 Enter as many fields as you can. The system will inform you and bring you back  Enter as many fields as you can. The system will inform you and bring you back
 to this page if the data selected is insufficient to run your class.<hr />  to this page if the data selected is insufficient to run your class.<hr />
 <input type="button" value="Reverse Association" onClick="javascript:this.form.associate.value='Reverse Association';submit(this.form);" />  <input type="button" value="Reverse Association" onClick="javascript:this.form.associate.value='Reverse Association';submit(this.form);" />
   <label><input type="checkbox" name="noFirstLine" $checked />$ignore</label>
 <input type="hidden" name="associate"  value="" />  <input type="hidden" name="associate"  value="" />
 <input type="hidden" name="phase"      value="three" />  <input type="hidden" name="phase"      value="three" />
 <input type="hidden" name="datatoken"  value="$datatoken" />  <input type="hidden" name="datatoken"  value="$datatoken" />
 <input type="hidden" name="fileupload" value="$ENV{'form.fileupload'}" />  <input type="hidden" name="fileupload" value="$env{'form.fileupload'}" />
 <input type="hidden" name="upfiletype" value="$ENV{'form.upfiletype'}" />  <input type="hidden" name="upfiletype" value="$env{'form.upfiletype'}" />
 <input type="hidden" name="upfile_associate"   <input type="hidden" name="upfile_associate" 
                                        value="$ENV{'form.upfile_associate'}" />                                         value="$env{'form.upfile_associate'}" />
 <input type="hidden" name="symb"       value="$symb" />  <input type="hidden" name="symb"       value="$symb" />
 <input type="hidden" name="url"        value="$url" />  <input type="hidden" name="url"        value="$url" />
 <input type="hidden" name="command"    value="csvuploadassign" />  <input type="hidden" name="saveState"  value="$env{'form.saveState'}" />
   <input type="hidden" name="probTitle"  value="$env{'form.probTitle'}" />
   <input type="hidden" name="command"    value="csvuploadoptions" />
 <hr />  <hr />
 <script type="text/javascript" language="Javascript">  <script type="text/javascript" language="Javascript">
 $javascript  $javascript
 </script>  </script>
 ENDPICK  ENDPICK
 return '';      return '';
   
 }  }
   
 sub csvupload_fields {  sub csvupload_fields {
     my ($url) = @_;      my ($url,$symb) = @_;
     my (@parts) = &getpartlist($url);      my (@parts) = &getpartlist($url,$symb);
     my @fields=(['username','Student Username'],['domain','Student Domain']);      my @fields=(['ID','Student ID'],
    ['username','Student Username'],
    ['domain','Student Domain']);
     foreach my $part (sort(@parts)) {      foreach my $part (sort(@parts)) {
  my @datum;   my @datum;
  my $display=&Apache::lonnet::metadata($url,$part.'.display');   my $display=&Apache::lonnet::metadata($url,$part.'.display');
  my $name=$part;   my $name=$part;
  if  (!$display) { $display = $name; }   if  (!$display) { $display = $name; }
  @datum=($name,$display);   @datum=($name,$display);
    if ($name=~/^stores_(.*)_awarded/) {
       push(@fields,['stores_'.$1.'_points',"Points [Part: $1]"]);
    }
  push(@fields,\@datum);   push(@fields,\@datum);
     }      }
     return (@fields);      return (@fields);
Line 1815  sub csvuploadmap_footer { Line 3062  sub csvuploadmap_footer {
 ENDPICK  ENDPICK
 }  }
   
   sub upcsvScores_form {
       my ($request) = shift;
       my ($symb,$url)=&get_symb_and_url($request);
       if (!$symb) {return '';}
       my $result =<<CSVFORMJS;
   <script type="text/javascript" language="javascript">
       function checkUpload(formname) {
    if (formname.upfile.value == "") {
       alert("Please use the browse button to select a file from your local directory.");
       return false;
    }
    formname.submit();
       }
       </script>
   CSVFORMJS
       $env{'form.probTitle'} = &Apache::lonnet::gettitle($symb);
       my ($table) = &showResourceInfo($url,$env{'form.probTitle'});
       $result.=$table;
       $result.='<br /><table width=100% border=0><tr><td bgcolor="#777777">'."\n";
       $result.='<table width=100% border=0><tr bgcolor="#e6ffff"><td>'."\n";
       $result.='&nbsp;<b>Specify a file containing the class scores for current resource'.
    '.</b></td></tr>'."\n";
       $result.='<tr bgcolor=#ffffe6><td>'."\n";
       my $upfile_select=&Apache::loncommon::upfile_select_html();
       my $ignore=&mt('Ignore First Line');
       $result.=<<ENDUPFORM;
   <form method="post" enctype="multipart/form-data" action="/adm/grades" name="gradesupload">
   <input type="hidden" name="symb" value="$symb" />
   <input type="hidden" name="url" value="$url" />
   <input type="hidden" name="command" value="csvuploadmap" />
   <input type="hidden" name="probTitle" value="$env{'form.probTitle'}" />
   <input type="hidden" name="saveState"  value="$env{'form.saveState'}" />
   $upfile_select
   <br /><input type="button" onClick="javascript:checkUpload(this.form);" value="Upload Scores" />
   <label><input type="checkbox" name="noFirstLine" />$ignore</lable>
   </form>
   ENDUPFORM
       $result.='</td></tr></table>'."\n";
       $result.='</td></tr></table><br /><br />'."\n";
       $result.=&show_grading_menu_form($symb,$url);
       return $result;
   }
   
   
 sub csvuploadmap {  sub csvuploadmap {
     my ($request)= @_;      my ($request)= @_;
     my ($symb,$url)=&get_symb_and_url($request);      my ($symb,$url)=&get_symb_and_url($request);
     if (!$symb) {return '';}      if (!$symb) {return '';}
   
     my $datatoken;      my $datatoken;
     if (!$ENV{'form.datatoken'}) {      if (!$env{'form.datatoken'}) {
  $datatoken=&Apache::loncommon::upfile_store($request);   $datatoken=&Apache::loncommon::upfile_store($request);
     } else {      } else {
  $datatoken=$ENV{'form.datatoken'};   $datatoken=$env{'form.datatoken'};
  &Apache::loncommon::load_tmp_file($request);   &Apache::loncommon::load_tmp_file($request);
     }      }
     my @records=&Apache::loncommon::upfile_record_sep();      my @records=&Apache::loncommon::upfile_record_sep();
       if ($env{'form.noFirstLine'}) { shift(@records); }
     &csvuploadmap_header($request,$symb,$url,$datatoken,$#records+1);      &csvuploadmap_header($request,$symb,$url,$datatoken,$#records+1);
     my ($i,$keyfields);      my ($i,$keyfields);
     if (@records) {      if (@records) {
  my @fields=&csvupload_fields($url);   my @fields=&csvupload_fields($url,$symb);
  if ($ENV{'form.upfile_associate'} eq 'reverse') {  
    if ($env{'form.upfile_associate'} eq 'reverse') {
     &Apache::loncommon::csv_print_samples($request,\@records);      &Apache::loncommon::csv_print_samples($request,\@records);
     $i=&Apache::loncommon::csv_print_select_table($request,\@records,      $i=&Apache::loncommon::csv_print_select_table($request,\@records,
   \@fields);    \@fields);
Line 1846  sub csvuploadmap { Line 3140  sub csvuploadmap {
  }   }
     }      }
     &csvuploadmap_footer($request,$i,$keyfields);      &csvuploadmap_footer($request,$i,$keyfields);
       $request->print(&show_grading_menu_form($symb,$url));
   
     return '';      return '';
 }  }
   
 sub csvuploadassign {  sub csvuploadoptions {
     my ($request)= @_;      my ($request)= @_;
     my ($symb,$url)=&get_symb_and_url($request);      my ($symb,$url)=&get_symb_and_url($request);
     if (!$symb) {return '';}      my $checked=(($env{'form.noFirstLine'})?'1':'0');
     &Apache::loncommon::load_tmp_file($request);      my $ignore=&mt('Ignore First Line');
     my @gradedata=&Apache::loncommon::upfile_record_sep();      $request->print(<<ENDPICK);
     my @keyfields = split(/\,/,$ENV{'form.keyfields'});  <form method="post" enctype="multipart/form-data" action="/adm/grades" name="gradesupload">
     my %fields=();  <h3><font color="#339933">Uploading Class Grade Options</font></h3>
     for (my $i=0; $i<=$ENV{'form.nfields'}; $i++) {  <input type="hidden" name="command"    value="csvuploadassign" />
  if ($ENV{'form.upfile_associate'} eq 'reverse') {  <input type="submit" value="Assign Grades" /><br />
     if ($ENV{'form.f'.$i} ne 'none') {  <p>
  $fields{$keyfields[$i]}=$ENV{'form.f'.$i};  <label>
      <input type="checkbox" name="show_full_results" />
      Show a table of all changes
   </label>
   </p>
   <p>
   <label>
      <input type="checkbox" name="overwite_scores" checked="checked" />
      Overwrite any existing score
   </label>
   </p>
   ENDPICK
       my %fields=&get_fields();
       if (!defined($fields{'domain'})) {
    my $domform = &Apache::loncommon::select_dom_form($env{'request.role.domain'},'default_domain');
    $request->print("\n<p> Users are in domain: ".$domform."</p>\n");
       }
       foreach my $key (sort(keys(%env))) {
    if ($key !~ /^form\.(.*)$/) { next; }
    my $cleankey=$1;
    if ($cleankey eq 'command') { next; }
    $request->print('<input type="hidden" name="'.$cleankey.
    '"  value="'.$env{$key}.'" />'."\n");
       }
       # FIXME do a check for any duplicated user ids...
       # FIXME do a check for any invalid user ids?...
       $request->print("<hr /></form>\n");
       $request->print(&show_grading_menu_form($symb,$url));
       return '';
   }
   
   sub get_fields {
       my %fields;
       my @keyfields = split(/\,/,$env{'form.keyfields'});
       for (my $i=0; $i<=$env{'form.nfields'}; $i++) {
    if ($env{'form.upfile_associate'} eq 'reverse') {
       if ($env{'form.f'.$i} ne 'none') {
    $fields{$keyfields[$i]}=$env{'form.f'.$i};
     }      }
  } else {   } else {
     if ($ENV{'form.f'.$i} ne 'none') {      if ($env{'form.f'.$i} ne 'none') {
  $fields{$ENV{'form.f'.$i}}=$keyfields[$i];   $fields{$env{'form.f'.$i}}=$keyfields[$i];
     }      }
  }   }
     }      }
       return %fields;
   }
   
   sub csvuploadassign {
       my ($request)= @_;
       my ($symb,$url)=&get_symb_and_url($request);
       if (!$symb) {return '';}
       &Apache::loncommon::load_tmp_file($request);
       my @gradedata = &Apache::loncommon::upfile_record_sep();
       if ($env{'form.noFirstLine'}) { shift(@gradedata); }
       my %fields=&get_fields();
     $request->print('<h3>Assigning Grades</h3>');      $request->print('<h3>Assigning Grades</h3>');
     my $courseid=$ENV{'request.course.id'};      my $courseid=$env{'request.course.id'};
 #  my $cdom=$ENV{"course.$courseid.domain"};      my ($classlist) = &getclasslist('all',0);
 #  my $cnum=$ENV{"course.$courseid.num"};      my @notallowed;
     my ($classlist) = &getclasslist('all','1');  
     my @skipped;      my @skipped;
     my $countdone=0;      my $countdone=0;
     foreach my $grade (@gradedata) {      foreach my $grade (@gradedata) {
  my %entries=&Apache::loncommon::record_sep($grade);   my %entries=&Apache::loncommon::record_sep($grade);
    my $domain;
    if ($entries{$fields{'domain'}}) {
       $domain=$entries{$fields{'domain'}};
    } else {
       $domain=$env{'form.default_domain'};
    }
    $domain=~s/\s//g;
  my $username=$entries{$fields{'username'}};   my $username=$entries{$fields{'username'}};
  my $domain=$entries{$fields{'domain'}};   $username=~s/\s//g;
    if (!$username) {
       my $id=$entries{$fields{'ID'}};
       $id=~s/\s//g;
       my %ids=&Apache::lonnet::idget($domain,$id);
       $username=$ids{$id};
    }
  if (!exists($$classlist{"$username:$domain"})) {   if (!exists($$classlist{"$username:$domain"})) {
     push(@skipped,"$username:$domain");      my $id=$entries{$fields{'ID'}};
       $id=~s/\s//g;
       if ($id) {
    push(@skipped,"$id:$domain");
       } else {
    push(@skipped,"$username:$domain");
       }
     next;      next;
  }   }
    my $usec=$classlist->{"$username:$domain"}[5];
    if (!&canmodify($usec)) {
       push(@notallowed,"$username:$domain");
       next;
    }
    my %points;
  my %grades;   my %grades;
  foreach my $dest (keys(%fields)) {   foreach my $dest (keys(%fields)) {
     if ($dest eq 'username' || $dest eq 'domain') { next; }      if ($dest eq 'ID' || $dest eq 'username' ||
     if ($entries{$fields{$dest}} eq '') { next; }   $dest eq 'domain') { next; }
     my $store_key=$dest;      if ($entries{$fields{$dest}} =~ /^\s*$/) { next; }
     $store_key=~s/^stores/resource/;      if ($dest=~/stores_(.*)_points/) {
     $store_key=~s/_/\./g;   my $part=$1;
     $grades{$store_key}=$entries{$fields{$dest}};   my $wgt =&Apache::lonnet::EXT('resource.'.$part.'.weight',
         $symb,$domain,$username);
    $entries{$fields{$dest}}=~s/\s//g;
    my $pcr=$entries{$fields{$dest}} / $wgt;
    my $award='correct_by_override';
    $grades{"resource.$part.awarded"}=$pcr;
    $grades{"resource.$part.solved"}=$award;
    $points{$part}=1;
       } else {
    if ($dest=~/stores_(.*)_awarded/) { if ($points{$1}) {next;} }
    if ($dest=~/stores_(.*)_solved/)  { if ($points{$1}) {next;} }
    my $store_key=$dest;
    $store_key=~s/^stores/resource/;
    $store_key=~s/_/\./g;
    $grades{$store_key}=$entries{$fields{$dest}};
       }
  }   }
  $grades{"resource.regrader"}="$ENV{'user.name'}:$ENV{'user.domain'}";   if (! %grades) { push(@skipped,"$username:$domain no data to store"); }
  &Apache::lonnet::cstore(\%grades,$symb,$ENV{'request.course.id'},   $grades{"resource.regrader"}="$env{'user.name'}:$env{'user.domain'}";
   # &Apache::lonnet::logthis(" storing ".(join('-',%grades)));
    &Apache::lonnet::cstore(\%grades,$symb,$env{'request.course.id'},
  $domain,$username);   $domain,$username);
  $request->print('.');   $request->print('.');
  $request->rflush();   $request->rflush();
Line 1901  sub csvuploadassign { Line 3286  sub csvuploadassign {
     }      }
     $request->print("<br />Stored $countdone students\n");      $request->print("<br />Stored $countdone students\n");
     if (@skipped) {      if (@skipped) {
  $request->print('<br /><font size="+1"><b>Skipped Students</b></font><br />');   $request->print('<p<font size="+1"><b>Skipped Students</b></font></p>');
  foreach my $student (@skipped) { $request->print("<br />$student"); }   foreach my $student (@skipped) { $request->print("$student<br />\n"); }
       }
       if (@notallowed) {
    $request->print('<p><font size="+1" color="red"><b>Students Not Allowed to Modify</b></font></p>');
    foreach my $student (@notallowed) { $request->print("$student<br />\n"); }
     }      }
     $request->print(&view_edit_entire_class_form($symb,$url));      $request->print("<br />\n");
     $request->print(&show_grading_menu_form($symb,$url));      $request->print(&show_grading_menu_form($symb,$url));
     return '';      return '';
 }  }
   #------------- end of section for handling csv file upload ---------
   #
   #-------------------------------------------------------------------
   #
   #-------------- Next few routines handle grading by page/sequence
   #
   #--- Select a page/sequence and a student to grade
   sub pickStudentPage {
       my ($request) = shift;
   
 sub send_header {      $request->print(<<LISTJAVASCRIPT);
     my ($request)= @_;  <script type="text/javascript" language="javascript">
     $request->print(&Apache::lontexconvert::header());  
 #  $request->print("  function checkPickOne(formname) {
 #<script>      if (radioSelection(formname.student) == null) {
 #remotewindow=open('','homeworkremote');   alert("Please select the student you wish to grade.");
 #remotewindow.close();   return;
 #</script>");       }
     $request->print('<body bgcolor="#FFFFFF">');      ptr = pullDownSelection(formname.selectpage);
       formname.page.value = formname["page"+ptr].value;
       formname.title.value = formname["title"+ptr].value;
       formname.submit();
 }  }
   
 sub send_footer {  </script>
     my ($request)= @_;  LISTJAVASCRIPT
     $request->print('</body>');      &commonJSfunctions($request);
     $request->print(&Apache::lontexconvert::footer());      my ($symb,$url) = &get_symb_and_url($request);
       my $cdom      = $env{"course.$env{'request.course.id'}.domain"};
       my $cnum      = $env{"course.$env{'request.course.id'}.num"};
       my $getsec    = $env{'form.section'} eq '' ? 'all' : $env{'form.section'};
   
       my $result='<h3><font color="#339933">&nbsp;'.
    'Manual Grading by Page or Sequence</font></h3>';
   
       $result.='<form action="/adm/grades" method="post" name="displayPage">'."\n";
       $result.='&nbsp;<b>Problems from:</b> <select name="selectpage">'."\n";
       my ($titles,$symbx) = &getSymbMap($request);
       my ($curpage) =&Apache::lonnet::decode_symb($symb); 
   #    my ($curpage,$mapId) =&Apache::lonnet::decode_symb($symb); 
   #    my $type=($curpage =~ /\.(page|sequence)/);
       my $ctr=0;
       foreach (@$titles) {
    my ($minder,$showtitle) = ($_ =~ /(\d+)\.(.*)/);
    $result.='<option value="'.$ctr.'" '.
       ($$symbx{$_} =~ /$curpage$/ ? 'selected="on"' : '').
       '>'.$showtitle.'</option>'."\n";
    $ctr++;
       }
       $result.= '</select>'."<br>\n";
       $ctr=0;
       foreach (@$titles) {
    my ($minder,$showtitle) = ($_ =~ /(\d+)\.(.*)/);
    $result.='<input type="hidden" name="page'.$ctr.'" value="'.$$symbx{$_}.'" />'."\n";
    $result.='<input type="hidden" name="title'.$ctr.'" value="'.$showtitle.'" />'."\n";
    $ctr++;
       }
       $result.='<input type="hidden" name="page" />'."\n".
    '<input type="hidden" name="title" />'."\n";
   
       $result.='&nbsp;<b>View Problems Text: </b><input type="radio" name="vProb" value="no" checked="on" /> no '."\n".
    '<input type="radio" name="vProb" value="yes" /> yes '."<br>\n";
   
       $result.='&nbsp;<b>Submission Details: </b>'.
    '<input type="radio" name="lastSub" value="none" /> none'."\n".
    '<input type="radio" name="lastSub" value="datesub" checked /> by dates and submissions'."\n".
    '<input type="radio" name="lastSub" value="all" /> all details'."\n";
   
       $result.='<input type="hidden" name="section"     value="'.$getsec.'" />'."\n".
    '<input type="hidden" name="Status"  value="'.$env{'form.Status'}.'" />'."\n".
    '<input type="hidden" name="command" value="displayPage" />'."\n".
    '<input type="hidden" name="url"     value="'.$url.'" />'."\n".
    '<input type="hidden" name="symb"    value="'.$symb.'" />'."\n".
    '<input type="hidden" name="saveState" value="'.$env{'form.saveState'}.'" />'."<br />\n";
   
       $result.='&nbsp;<input type="button" '.
    'onClick="javascript:checkPickOne(this.form);"value="Next->" /><br />'."\n";
   
       $request->print($result);
   
       my $studentTable.='&nbsp;<b>Select a student you wish to grade and then click on the Next button.</b><br>'.
    '<table border="0"><tr><td bgcolor="#777777">'.
    '<table border="0"><tr bgcolor="#e6ffff">'.
    '<td align="right">&nbsp;<b>No.</b></td>'.
    '<td>'.&nameUserString('header').'</td>'.
    '<td align="right">&nbsp;<b>No.</b></td>'.
    '<td>'.&nameUserString('header').'</td></tr>';
    
       my (undef,undef,$fullname) = &getclasslist($getsec,'1');
       my $ptr = 1;
       foreach my $student (sort {lc($$fullname{$a}) cmp lc($$fullname{$b}) } keys %$fullname) {
    my ($uname,$udom) = split(/:/,$student);
    $studentTable.=($ptr%2 == 1 ? '<tr bgcolor="#ffffe6">' : '</td>');
    $studentTable.='<td align="right">'.$ptr.'&nbsp;</td>';
    $studentTable.='<td>&nbsp;<input type="radio" name="student" value="'.$student.'" /> '
       .&nameUserString(undef,$$fullname{$student},$uname,$udom)."\n";
    $studentTable.=($ptr%2 == 0 ? '</td></tr>' : '');
    $ptr++;
       }
       $studentTable.='</td><td>&nbsp;</td><td>&nbsp;' if ($ptr%2 == 0);
       $studentTable.='</td></tr></table></td></tr></table>'."\n";
       $studentTable.='<input type="button" '.
    'onClick="javascript:checkPickOne(this.form);"value="Next->" /></form>'."\n";
   
       $studentTable.=&show_grading_menu_form($symb,$url);
       $request->print($studentTable);
   
       return '';
   }
   
   sub getSymbMap {
       my ($request) = @_;
       my $navmap = Apache::lonnavmaps::navmap->new();
   
       my %symbx = ();
       my @titles = ();
       my $minder = 0;
   
       # Gather every sequence that has problems.
       my @sequences = $navmap->retrieveResources(undef, sub { shift->is_map(); },
          1,0,1);
       for my $sequence ($navmap->getById('0.0'), @sequences) {
    if ($navmap->hasResource($sequence, sub { shift->is_problem(); }, 0) ) {
       my $title = $minder.'.'.$sequence->compTitle();
       push @titles, $title; # minder in case two titles are identical
       $symbx{$title} = $sequence->symb();
       $minder++;
    }
       }
       return \@titles,\%symbx;
   }
   
   #
   #--- Displays a page/sequence w/wo problems, w/wo submissions
   sub displayPage {
       my ($request) = shift;
   
       my ($symb,$url) = &get_symb_and_url($request);
       my $cdom      = $env{"course.$env{'request.course.id'}.domain"};
       my $cnum      = $env{"course.$env{'request.course.id'}.num"};
       my $getsec    = $env{'form.section'} eq '' ? 'all' : $env{'form.section'};
       my $pageTitle = $env{'form.page'};
       my ($classlist,undef,$fullname) = &getclasslist($getsec,'1');
       my ($uname,$udom) = split(/:/,$env{'form.student'});
       my $usec=$classlist->{$env{'form.student'}}[5];
   
       #need to make sure we have the correct data for later EXT calls, 
       #thus invalidate the cache
       &Apache::lonnet::devalidatecourseresdata(
                    $env{'course.'.$env{'request.course.id'}.'.num'},
                    $env{'course.'.$env{'request.course.id'}.'.domain'});
       &Apache::lonnet::clear_EXT_cache_status();
   
       if (!&canview($usec)) {
    $request->print('<font color="red">Unable to view requested student.('.$env{'form.student'}.')</font>');
    $request->print(&show_grading_menu_form($symb,$url));
    return;
       }
       my $result='<h3><font color="#339933">&nbsp;'.$env{'form.title'}.'</font></h3>';
       $result.='<h3>&nbsp;Student: '.&nameUserString(undef,$$fullname{$env{'form.student'}},$uname,$udom).
    '</h3>'."\n";
       &sub_page_js($request);
       $request->print($result);
   
       my $navmap = Apache::lonnavmaps::navmap->new();
       my ($mapUrl, $id, $resUrl)=&Apache::lonnet::decode_symb($env{'form.page'});
       my $map = $navmap->getResourceByUrl($resUrl); # add to navmaps
   
       my $iterator = $navmap->getIterator($map->map_start(),
    $map->map_finish());
   
       my $studentTable='<form action="/adm/grades" method="post" name="gradePage">'."\n".
    '<input type="hidden" name="command" value="gradeByPage" />'."\n".
    '<input type="hidden" name="fullname" value="'.$$fullname{$env{'form.student'}}.'" />'."\n".
    '<input type="hidden" name="student" value="'.$env{'form.student'}.'" />'."\n".
    '<input type="hidden" name="page"    value="'.$pageTitle.'" />'."\n".
    '<input type="hidden" name="title"   value="'.$env{'form.title'}.'" />'."\n".
    '<input type="hidden" name="url"     value="'.$url.'" />'."\n".
    '<input type="hidden" name="symb"    value="'.$symb.'" />'."\n".
    '<input type="hidden" name="overRideScore" value="no" />'."\n".
    '<input type="hidden" name="saveState" value="'.$env{'form.saveState'}.'" />'."\n";
   
       my $checkIcon = '<img src="'.$request->dir_config('lonIconsURL').
    '/check.gif" height="16" border="0" />';
   
       $studentTable.='&nbsp;<b>Note:</b> Problems graded correct by the computer are marked with a '.$checkIcon.
    ' symbol.'."\n".
    '<table border="0"><tr><td bgcolor="#777777">'.
    '<table border="0"><tr bgcolor="#e6ffff">'.
    '<td align="center"><b>&nbsp;Prob.&nbsp;</b></td>'.
    '<td><b>&nbsp;'.($env{'form.vProb'} eq 'no' ? 'Title' : 'Problem Text').'/Grade</b></td></tr>';
   
       my ($depth,$question,$prob) = (1,1,1);
       $iterator->next(); # skip the first BEGIN_MAP
       my $curRes = $iterator->next(); # for "current resource"
       while ($depth > 0) {
           if($curRes == $iterator->BEGIN_MAP) { $depth++; }
           if($curRes == $iterator->END_MAP) { $depth--; }
   
           if (ref($curRes) && $curRes->is_problem() && !$curRes->randomout) {
       my $parts = $curRes->parts();
               my $title = $curRes->compTitle();
       my $symbx = $curRes->symb();
       $studentTable.='<tr bgcolor="#ffffe6"><td align="center" valign="top" >'.$prob.
    (scalar(@{$parts}) == 1 ? '' : '<br>('.scalar(@{$parts}).'&nbsp;parts)').'</td>';
       $studentTable.='<td valign="top">';
       if ($env{'form.vProb'} eq 'yes' ) {
    $studentTable.=&show_problem($request,$symbx,$uname,$udom,1,
        undef,'both');
       } else {
    my $companswer = &Apache::loncommon::get_student_answers($symbx,$uname,$udom,$env{'request.course.id'});
    $companswer =~ s|<form(.*?)>||g;
    $companswer =~ s|</form>||g;
   # while ($companswer =~ /(<a href\=\"javascript:newWindow.*?Script Vars<\/a>)/s) { #<a href="javascript:newWindow</a>
   #    $companswer =~ s/$1/ /ms;
   #    $request->print('match='.$1."<br>\n");
   # }
   # $companswer =~ s|<table border=\"1\">|<table border=\"0\">|g;
    $studentTable.='&nbsp;<b>'.$title.'</b>&nbsp;<br>&nbsp;<b>Correct answer:</b><br>'.$companswer;
       }
   
       my %record = &Apache::lonnet::restore($symbx,$env{'request.course.id'},$udom,$uname);
   
       if ($env{'form.lastSub'} eq 'datesub') {
    if ($record{'version'} eq '') {
       $studentTable.='<br />&nbsp;<font color="red">No recorded submission for this problem</font><br />';
    } else {
       my %responseType = ();
       foreach my $partid (@{$parts}) {
    my @responseIds =$curRes->responseIds($partid);
    my @responseType =$curRes->responseType($partid);
    my %responseIds;
    for (my $i=0;$i<=$#responseIds;$i++) {
       $responseIds{$responseIds[$i]}=$responseType[$i];
    }
    $responseType{$partid} = \%responseIds;
       }
       $studentTable.= &displaySubByDates($symbx,\%record,$parts,\%responseType,$checkIcon,$uname,$udom);
   
    }
       } elsif ($env{'form.lastSub'} eq 'all') {
    my $last = ($env{'form.lastSub'} eq 'last' ? 'last' : '');
    $studentTable.=&Apache::loncommon::get_previous_attempt($symbx,$uname,$udom,
    $env{'request.course.id'},
    '','.submission');
    
       }
       if (&canmodify($usec)) {
    foreach my $partid (@{$parts}) {
       $studentTable.=&gradeBox($request,$symbx,$uname,$udom,$question,$partid,\%record);
       $studentTable.='<input type="hidden" name="q_'.$question.'" value="'.$partid.'" />'."\n";
       $question++;
    }
    $prob++;
       }
       $studentTable.='</td></tr>';
   
    }
           $curRes = $iterator->next();
       }
   
       $studentTable.='</td></tr></table></td></tr></table>'."\n".
    '<input type="button" value="Save" '.
    'onClick="javascript:checkSubmitPage(this.form,'.$question.');" TARGET=_self />'.
    '</form>'."\n";
       $studentTable.=&show_grading_menu_form($symb,$url);
       $request->print($studentTable);
   
       return '';
   }
   
   sub displaySubByDates {
       my ($symb,$record,$parts,$responseType,$checkIcon,$uname,$udom) = @_;
       my $isCODE=0;
       if (exists($record->{'resource.CODE'})) { $isCODE=1; }
       my $studentTable='<table border="0" width="100%"><tr><td bgcolor="#777777">'.
    '<table border="0" width="100%"><tr bgcolor="#e6ffff">'.
    '<td><b>Date/Time</b></td>'.
    ($isCODE?'<td><b>CODE</b></td>':'').
    '<td><b>Submission</b></td>'.
    '<td><b>Status&nbsp;</b></td></tr>';
       my ($version);
       my %mark;
       my %orders;
       $mark{'correct_by_student'} = $checkIcon;
       if (!exists($$record{'1:timestamp'})) {
    return '<br />&nbsp;<font color="red">Nothing submitted - no attempts</font><br />';
       }
       for ($version=1;$version<=$$record{'version'};$version++) {
    my $timestamp = scalar(localtime($$record{$version.':timestamp'}));
    $studentTable.='<tr bgcolor="#ffffff" valign="top"><td>'.$timestamp.'</td>';
    if ($isCODE) {
       $studentTable.='<td>'.$record->{$version.':resource.CODE'}.'</td>';
    }
    my @versionKeys = split(/\:/,$$record{$version.':keys'});
    my @displaySub = ();
    foreach my $partid (@{$parts}) {
       my @matchKey = sort(grep /^resource\.\Q$partid\E\..*?\.submission$/,@versionKeys);
   #    next if ($$record{"$version:resource.$partid.solved"} eq '');
       my $display_part=&get_display_part($partid,undef,$symb);
       foreach my $matchKey (@matchKey) {
    if (exists($$record{$version.':'.$matchKey}) &&
       $$record{$version.':'.$matchKey} ne '') {
       my ($responseId)=($matchKey=~ /^resource\.\Q$partid\E\.(.*?)\.submission$/);
       $displaySub[0].='<b>Part:</b>&nbsp;'.$display_part.'&nbsp;';
       $displaySub[0].='<font color="#999999">(ID&nbsp;'.
    $responseId.')</font>&nbsp;<b>';
       if ($$record{"$version:resource.$partid.tries"} eq '') {
    $displaySub[0].='Trial&nbsp;not&nbsp;counted';
       } else {
    $displaySub[0].='Trial&nbsp;'.
       $$record{"$version:resource.$partid.tries"};
       }
       my $responseType=$responseType->{$partid}->{$responseId};
       if (!exists($orders{$partid})) { $orders{$partid}={}; }
       if (!exists($orders{$partid}->{$responseId})) {
    $orders{$partid}->{$responseId}=
       &get_order($partid,$responseId,$symb,$uname,$udom);
       }
       $displaySub[0].='</b>&nbsp; '.
    &cleanRecord($$record{$version.':'.$matchKey},$responseType,$symb,$partid,$responseId,$record,$orders{$partid}->{$responseId},"$version:").'<br />';
    }
       }
       if (exists $$record{"$version:resource.$partid.award"}) {
    $displaySub[1].='<b>Part:</b>&nbsp;'.$display_part.' &nbsp;'.
       lc($$record{"$version:resource.$partid.award"}).' '.
       $mark{$$record{"$version:resource.$partid.solved"}}.
       '<br />';
       }
       if (exists $$record{"$version:resource.$partid.regrader"}) {
    $displaySub[2].=$$record{"$version:resource.$partid.regrader"}.
       ' (<b>'.&mt('Part').':</b> '.$display_part.')';
       }
    }
    # needed because old essay regrader has not parts info
    if (exists $$record{"$version:resource.regrader"}) {
       $displaySub[2].=$$record{"$version:resource.regrader"};
    }
    $studentTable.='<td>'.$displaySub[0].'&nbsp;</td><td>'.$displaySub[1];
    if ($displaySub[2]) {
       $studentTable.='Manually graded by '.$displaySub[2];
    }
    $studentTable.='&nbsp;</td></tr>';
       
       }
       $studentTable.='</table></td></tr></table>';
       return $studentTable;
   }
   
   sub updateGradeByPage {
       my ($request) = shift;
   
       my $cdom      = $env{"course.$env{'request.course.id'}.domain"};
       my $cnum      = $env{"course.$env{'request.course.id'}.num"};
       my $getsec    = $env{'form.section'} eq '' ? 'all' : $env{'form.section'};
       my $pageTitle = $env{'form.page'};
       my ($classlist,undef,$fullname) = &getclasslist($getsec,'1');
       my ($uname,$udom) = split(/:/,$env{'form.student'});
       my $usec=$classlist->{$env{'form.student'}}[5];
       if (!&canmodify($usec)) {
    $request->print('<font color="red">Unable to modify requested student.('.$env{'form.student'}.'</font>');
    $request->print(&show_grading_menu_form($env{'form.symb'},$env{'form.url'}));
    return;
       }
       my $result='<h3><font color="#339933">&nbsp;'.$env{'form.title'}.'</font></h3>';
       $result.='<h3>&nbsp;Student: '.&nameUserString(undef,$env{'form.fullname'},$uname,$udom).
    '</h3>'."\n";
   
       $request->print($result);
   
       my $navmap = Apache::lonnavmaps::navmap->new();
       my ($mapUrl, $id, $resUrl) = &Apache::lonnet::decode_symb( $env{'form.page'});
       my $map = $navmap->getResourceByUrl($resUrl); # add to navmaps
   
       my $iterator = $navmap->getIterator($map->map_start(),
    $map->map_finish());
   
       my $studentTable='<table border="0"><tr><td bgcolor="#777777">'.
    '<table border="0"><tr bgcolor="#e6ffff">'.
    '<td align="center"><b>&nbsp;Prob.&nbsp;</b></td>'.
    '<td><b>&nbsp;Title&nbsp;</b></td>'.
    '<td><b>&nbsp;Previous Score&nbsp;</b></td>'.
    '<td><b>&nbsp;New Score&nbsp;</b></td></tr>';
   
       $iterator->next(); # skip the first BEGIN_MAP
       my $curRes = $iterator->next(); # for "current resource"
       my ($depth,$question,$prob,$changeflag)= (1,1,1,0);
       while ($depth > 0) {
           if($curRes == $iterator->BEGIN_MAP) { $depth++; }
           if($curRes == $iterator->END_MAP) { $depth--; }
   
           if (ref($curRes) && $curRes->is_problem() && !$curRes->randomout) {
       my $parts = $curRes->parts();
               my $title = $curRes->compTitle();
       my $symbx = $curRes->symb();
       $studentTable.='<tr bgcolor="#ffffe6"><td align="center" valign="top" >'.$prob.
    (scalar(@{$parts}) == 1 ? '' : '<br>('.scalar(@{$parts}).'&nbsp;parts)').'</td>';
       $studentTable.='<td valign="top">&nbsp;<b>'.$title.'</b>&nbsp;</td>';
   
       my %newrecord=();
       my @displayPts=();
               my %aggregate = ();
               my $aggregateflag = 0;
       foreach my $partid (@{$parts}) {
    my $newpts = $env{'form.GD_BOX'.$question.'_'.$partid};
    my $oldpts = $env{'form.oldpts'.$question.'_'.$partid};
   
    my $wgt = $env{'form.WGT'.$question.'_'.$partid} != 0 ? 
       $env{'form.WGT'.$question.'_'.$partid} : 1;
    my $partial = $newpts/$wgt;
    my $score;
    if ($partial > 0) {
       $score = 'correct_by_override';
    } elsif ($newpts ne '') { #empty is taken as 0
       $score = 'incorrect_by_override';
    }
    my $dropMenu = $env{'form.GD_SEL'.$question.'_'.$partid};
    if ($dropMenu eq 'excused') {
       $partial = '';
       $score = 'excused';
    } elsif ($dropMenu eq 'reset status'
    && $env{'form.solved'.$question.'_'.$partid} ne '') { #update only if previous record exists
       $newrecord{'resource.'.$partid.'.tries'} = 0;
       $newrecord{'resource.'.$partid.'.solved'} = '';
       $newrecord{'resource.'.$partid.'.award'} = '';
       $newrecord{'resource.'.$partid.'.awarded'} = 0;
       $newrecord{'resource.'.$partid.'.regrader'} = "$env{'user.name'}:$env{'user.domain'}";
       $changeflag++;
       $newpts = '';
                       
                       my $aggtries =  $env{'form.aggtries'.$question.'_'.$partid};
                       my $totaltries = $env{'form.totaltries'.$question.'_'.$partid};
                       my $solvedstatus = $env{'form.solved'.$question.'_'.$partid};
                       if ($aggtries > 0) {
                           &decrement_aggs($symbx,$partid,\%aggregate,$aggtries,$totaltries,$solvedstatus);
                           $aggregateflag = 1;
                       }
    }
    my $display_part=&get_display_part($partid,undef,
      $curRes->symb());
    my $oldstatus = $env{'form.solved'.$question.'_'.$partid};
    $displayPts[0].='&nbsp;<b>Part:</b> '.$display_part.' = '.
       (($oldstatus eq 'excused') ? 'excused' : $oldpts).
       '&nbsp;<br>';
    $displayPts[1].='&nbsp;<b>Part:</b> '.$display_part.' = '.
        (($score eq 'excused') ? 'excused' : $newpts).
       '&nbsp;<br>';
   
    $question++;
    next if ($dropMenu eq 'reset status' || ($newpts == $oldpts && $score ne 'excused'));
   
    $newrecord{'resource.'.$partid.'.awarded'}  = $partial if $partial ne '';
    $newrecord{'resource.'.$partid.'.solved'}   = $score if $score ne '';
    $newrecord{'resource.'.$partid.'.regrader'} = "$env{'user.name'}:$env{'user.domain'}"
       if (scalar(keys(%newrecord)) > 0);
   
    $changeflag++;
       }
       if (scalar(keys(%newrecord)) > 0) {
    &Apache::lonnet::cstore(\%newrecord,$symbx,$env{'request.course.id'},
    $udom,$uname);
       }
               if ($aggregateflag) {
                   &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
                         $env{'course.'.$env{'request.course.id'}.'.domain'},
                         $env{'course.'.$env{'request.course.id'}.'.num'});
               }
   
       $studentTable.='<td valign="top">'.$displayPts[0].'</td>'.
    '<td valign="top">'.$displayPts[1].'</td>'.
    '</tr>';
   
       $prob++;
    }
           $curRes = $iterator->next();
       }
   
       $studentTable.='</td></tr></table></td></tr></table>';
       $studentTable.=&show_grading_menu_form($env{'form.symb'},$env{'form.url'});
       my $grademsg=($changeflag == 0 ? 'No score was changed or updated.' :
     'The scores were changed for '.
     $changeflag.' problem'.($changeflag == 1 ? '.' : 's.'));
       $request->print($grademsg.$studentTable);
   
       return '';
   }
   
   #-------- end of section for handling grading by page/sequence ---------
   #
   #-------------------------------------------------------------------
   
   #--------------------Scantron Grading-----------------------------------
   #
   #------ start of section for handling grading by page/sequence ---------
   
   sub defaultFormData {
       my ($symb,$url)=@_;
       return '
         <input type="hidden" name="symb"    value="'.$symb.'" />'."\n".
        '<input type="hidden" name="url"     value="'.$url.'" />'."\n".
        '<input type="hidden" name="saveState" value="'.$env{'form.saveState'}.'" />'."\n".
        '<input type="hidden" name="probTitle" value="'.$env{'form.probTitle'}.'" />'."\n";
   }
   
   sub getSequenceDropDown {
       my ($request,$symb)=@_;
       my $result='<select name="selectpage">'."\n";
       my ($titles,$symbx) = &getSymbMap($request);
       my ($curpage)=&Apache::lonnet::decode_symb($symb); 
       my $ctr=0;
       foreach (@$titles) {
    my ($minder,$showtitle) = ($_ =~ /(\d+)\.(.*)/);
    $result.='<option value="'.$$symbx{$_}.'" '.
       ($$symbx{$_} =~ /$curpage$/ ? 'selected="on"' : '').
       '>'.$showtitle.'</option>'."\n";
    $ctr++;
       }
       $result.= '</select>';
       return $result;
   }
   
   sub scantron_filenames {
       my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
       my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
       my @files=&Apache::lonnet::dirlist('userfiles',$cdom,$cname,
       &Apache::loncommon::propath($cdom,$cname));
       my @possiblenames;
       foreach my $filename (sort(@files)) {
    ($filename)=split(/&/,$filename);
    if ($filename!~/^scantron_orig_/) { next ; }
    $filename=~s/^scantron_orig_//;
    push(@possiblenames,$filename);
       }
       return @possiblenames;
   }
   
   sub scantron_uploads {
       my ($file2grade) = @_;
       my $result= '<select name="scantron_selectfile">';
       $result.="<option></option>";
       foreach my $filename (sort(&scantron_filenames())) {
    $result.="<option".($filename eq $file2grade ? ' selected="on"':'').">$filename</option>\n";
       }
       $result.="</select>";
       return $result;
   }
   
   sub scantron_scantab {
       my $fh=Apache::File->new($Apache::lonnet::perlvar{'lonTabDir'}.'/scantronformat.tab');
       my $result='<select name="scantron_format">'."\n";
       $result.='<option></option>'."\n";
       foreach my $line (<$fh>) {
    my ($name,$descrip)=split(/:/,$line);
    if ($name =~ /^\#/) { next; }
    $result.='<option value="'.$name.'">'.$descrip.'</option>'."\n";
       }
       $result.='</select>'."\n";
   
       return $result;
   }
   
   sub scantron_CODElist {
       my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
       my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
       my @names=&Apache::lonnet::getkeys('CODEs',$cdom,$cnum);
       my $namechoice='<option></option>';
       foreach my $name (sort {uc($a) cmp uc($b)} @names) {
    if ($name =~ /^error: 2 /) { next; }
    $namechoice.='<option value="'.$name.'">'.$name.'</option>';
       }
       $namechoice='<select name="scantron_CODElist">'.$namechoice.'</select>';
       return $namechoice;
   }
   
   sub scantron_CODEunique {
       my $result='<nobr>
                    <label><input type="radio" name="scantron_CODEunique"
                           value="Yes" checked="on" /> Yes </label>
                   </nobr>
                   <nobr>
                    <label><input type="radio" name="scantron_CODEunique"
                           value="No" /> No </label>
                   </nobr>';
       return $result;
   }
   
   sub scantron_selectphase {
       my ($r,$file2grade) = @_;
       my ($symb,$url)=&get_symb_and_url($r);
       if (!$symb) {return '';}
       my $sequence_selector=&getSequenceDropDown($r,$symb);
       my $default_form_data=&defaultFormData($symb,$url);
       my $grading_menu_button=&show_grading_menu_form($symb,$url);
       my $file_selector=&scantron_uploads($file2grade);
       my $format_selector=&scantron_scantab();
       my $CODE_selector=&scantron_CODElist();
       my $CODE_unique=&scantron_CODEunique();
       my $result;
       #FIXME allow instructor to be able to download the scantron file
       # and to upload it,
       $result.= <<SCANTRONFORM;
       <table width="100%" border="0">
       <tr>
        <form method="post" enctype="multipart/form-data" action="/adm/grades" name="scantron_process">
         <td bgcolor="#777777">
          <input type="hidden" name="command" value="scantron_warning" />
           $default_form_data
           <table width="100%" border="0">
             <tr bgcolor="#e6ffff">
               <td colspan="2">
                 &nbsp;<b>Specify file and which Folder/Sequence to grade</b>
               </td>
             </tr>
             <tr bgcolor="#ffffe6">
               <td> Sequence to grade: </td><td> $sequence_selector </td>
             </tr>
             <tr bgcolor="#ffffe6">
               <td> Filename of scoring office file: </td><td> $file_selector </td>
             </tr>
             <tr bgcolor="#ffffe6">
               <td> Format of data file: </td><td> $format_selector </td>
             </tr>
             <tr bgcolor="#ffffe6">
               <td> Saved CODEs to validate against: </td><td> $CODE_selector</td>
             </tr>
             <tr bgcolor="#ffffe6">
               <td> Each CODE is only to be used once:</td><td> $CODE_unique </td>
             </tr>
             <tr bgcolor="#ffffe6">
       <td> Options: </td>
               <td>
          <label><input type="checkbox" name="scantron_options_redo" value="redo_skipped"/> Do only previously skipped records</label> <br />
                  <label><input type="checkbox" name="scantron_options_ignore" value="ignore_corrections"/> Remove all exisiting corrections</label>
       </td>
             </tr>
             <tr bgcolor="#ffffe6">
               <td colspan="2">
                 <input type="submit" value="Grading: Validate Scantron Records" />
               </td>
             </tr>
           </table>
          </td>
        </form>
       </tr>
   SCANTRONFORM
      
       $r->print($result);
   
       if (&Apache::lonnet::allowed('usc',$env{'request.role.domain'}) ||
           &Apache::lonnet::allowed('usc',$env{'request.course.id'})) {
   
           $r->print(<<SCANTRONFORM);
       <tr>
         <td bgcolor="#777777">
           <table width="100%" border="0">
             <tr bgcolor="#e6ffff">
               <td>
                 &nbsp;<b>Specify a Scantron data file to upload.</b>
               </td>
             </tr>
             <tr bgcolor="#ffffe6">
               <td>
   SCANTRONFORM
       my $default_form_data=&defaultFormData(&get_symb_and_url($r,1));
       my $cdom= $env{'course.'.$env{'request.course.id'}.'.domain'};
       my $cnum= $env{'course.'.$env{'request.course.id'}.'.num'};
       $r->print(<<UPLOAD);
                 <script type="text/javascript" language="javascript">
       function checkUpload(formname) {
    if (formname.upfile.value == "") {
       alert("Please use the browse button to select a file from your local directory.");
       return false;
    }
    formname.submit();
       }
                 </script>
   
                 <form enctype='multipart/form-data' action='/adm/grades' name='rules' method='post'>
                   $default_form_data
                   <input name='courseid' type='hidden' value='$cnum' />
                   <input name='domainid' type='hidden' value='$cdom' />
                   <input name='command' value='scantronupload_save' type='hidden' />
                   File to upload:<input type="file" name="upfile" size="50" />
                   <br />
                   <input type="button" onClick="javascript:checkUpload(this.form);" value="Upload Scantron Data" />
                 </form>
   UPLOAD
   
           $r->print(<<SCANTRONFORM);
               </td>
             </tr>
           </table>
         </td>
       </tr>
   SCANTRONFORM
       }
       $r->print(<<SCANTRONFORM);
       <tr>
         <form action='/adm/grades' name='scantron_download'>
           <td bgcolor="#777777">
             <input type="hidden" name="command" value="scantron_download" />
             <table width="100%" border="0">
               <tr bgcolor="#e6ffff">
                 <td colspan="2">
                   &nbsp;<b>Download a scoring office file</b>
                 </td>
               </tr>
               <tr bgcolor="#ffffe6">
                 <td> Filename of scoring office file: </td><td> $file_selector </td>
               </tr>
               <tr bgcolor="#ffffe6">
                 <td colspan="2">
                   <input type="submit" value="Show List of Files" />
                 </td>
               </tr>
             </table>
           </td>
         </form>
       </tr>
   SCANTRONFORM
   
       $r->print(<<SCANTRONFORM);
     </table>
   $grading_menu_button
   SCANTRONFORM
   
       return
   }
   
   sub get_scantron_config {
       my ($which) = @_;
       my $fh=Apache::File->new($Apache::lonnet::perlvar{'lonTabDir'}.'/scantronformat.tab');
       my %config;
       #FIXME probably should move to XML it has already gotten a bit much now
       foreach my $line (<$fh>) {
    my ($name,$descrip)=split(/:/,$line);
    if ($name ne $which ) { next; }
    chomp($line);
    my @config=split(/:/,$line);
    $config{'name'}=$config[0];
    $config{'description'}=$config[1];
    $config{'CODElocation'}=$config[2];
    $config{'CODEstart'}=$config[3];
    $config{'CODElength'}=$config[4];
    $config{'IDstart'}=$config[5];
    $config{'IDlength'}=$config[6];
    $config{'Qstart'}=$config[7];
    $config{'Qlength'}=$config[8];
    $config{'Qoff'}=$config[9];
    $config{'Qon'}=$config[10];
    $config{'PaperID'}=$config[11];
    $config{'PaperIDlength'}=$config[12];
    $config{'FirstName'}=$config[13];
    $config{'FirstNamelength'}=$config[14];
    $config{'LastName'}=$config[15];
    $config{'LastNamelength'}=$config[16];
    last;
       }
       return %config;
   }
   
   sub username_to_idmap {
       my ($classlist)= @_;
       my %idmap;
       foreach my $student (keys(%$classlist)) {
    $idmap{$classlist->{$student}->[&Apache::loncoursedata::CL_ID]}=
       $student;
       }
       return %idmap;
   }
   
   sub scantron_fixup_scanline {
       my ($scantron_config,$scan_data,$line,$whichline,$field,$args)=@_;
       if ($field eq 'ID') {
    if (length($args->{'newid'}) > $$scantron_config{'IDlength'}) {
       return ($line,1,'New value too large');
    }
    if (length($args->{'newid'}) < $$scantron_config{'IDlength'}) {
       $args->{'newid'}=sprintf('%-'.$$scantron_config{'IDlength'}.'s',
        $args->{'newid'});
    }
    substr($line,$$scantron_config{'IDstart'}-1,
          $$scantron_config{'IDlength'})=$args->{'newid'};
    if ($args->{'newid'}=~/^\s*$/) {
       &scan_data($scan_data,"$whichline.user",
          $args->{'username'}.':'.$args->{'domain'});
    }
       } elsif ($field eq 'CODE') {
    if ($args->{'CODE_ignore_dup'}) {
       &scan_data($scan_data,"$whichline.CODE_ignore_dup",'1');
    }
    &scan_data($scan_data,"$whichline.useCODE",'1');
    if ($args->{'CODE'} ne 'use_unfound') {
       if (length($args->{'CODE'}) > $$scantron_config{'CODElength'}) {
    return ($line,1,'New CODE value too large');
       }
       if (length($args->{'CODE'}) < $$scantron_config{'CODElength'}) {
    $args->{'CODE'}=sprintf('%-'.$$scantron_config{'CODElength'}.'s',$args->{'CODE'});
       }
       substr($line,$$scantron_config{'CODEstart'}-1,
      $$scantron_config{'CODElength'})=$args->{'CODE'};
    }
       } elsif ($field eq 'answer') {
    my $length=$scantron_config->{'Qlength'};
    my $off=$scantron_config->{'Qoff'};
    my $on=$scantron_config->{'Qon'};
    my $answer=${off}x$length;
    if ($args->{'response'} eq 'none') {
       &scan_data($scan_data,
          "$whichline.no_bubble.".$args->{'question'},'1');
    } else {
       substr($answer,$args->{'response'},1)=$on;
       &scan_data($scan_data,
          "$whichline.no_bubble.".$args->{'question'},undef,'1');
    }
    my $where=$length*($args->{'question'}-1)+$scantron_config->{'Qstart'};
    substr($line,$where-1,$length)=$answer;
       }
       return $line;
   }
   
   sub scan_data {
       my ($scan_data,$key,$value,$delete)=@_;
       my $filename=$env{'form.scantron_selectfile'};
       if (defined($value)) {
    $scan_data->{$filename.'_'.$key} = $value;
       }
       if ($delete) { delete($scan_data->{$filename.'_'.$key}); }
       return $scan_data->{$filename.'_'.$key};
   }
   
   sub scantron_parse_scanline {
       my ($line,$whichline,$scantron_config,$scan_data,$justHeader)=@_;
       my %record;
       my $questions=substr($line,$$scantron_config{'Qstart'}-1);
       my $data=substr($line,0,$$scantron_config{'Qstart'}-1);
       if ($$scantron_config{'CODElocation'} ne 0) {
    if ($$scantron_config{'CODElocation'} < 0) {
       $record{'scantron.CODE'}=substr($data,
       $$scantron_config{'CODEstart'}-1,
       $$scantron_config{'CODElength'});
       if (&scan_data($scan_data,"$whichline.useCODE")) {
    $record{'scantron.useCODE'}=1;
       }
       if (&scan_data($scan_data,"$whichline.CODE_ignore_dup")) {
    $record{'scantron.CODE_ignore_dup'}=1;
       }
    } else {
       #FIXME interpret first N questions
    }
       }
       $record{'scantron.ID'}=substr($data,$$scantron_config{'IDstart'}-1,
     $$scantron_config{'IDlength'});
       $record{'scantron.PaperID'}=
    substr($data,$$scantron_config{'PaperID'}-1,
          $$scantron_config{'PaperIDlength'});
       $record{'scantron.FirstName'}=
    substr($data,$$scantron_config{'FirstName'}-1,
          $$scantron_config{'FirstNamelength'});
       $record{'scantron.LastName'}=
    substr($data,$$scantron_config{'LastName'}-1,
          $$scantron_config{'LastNamelength'});
       if ($justHeader) { return \%record; }
   
       my @alphabet=('A'..'Z');
       my $questnum=0;
       while ($questions) {
    $questnum++;
    my $currentquest=substr($questions,0,$$scantron_config{'Qlength'});
    substr($questions,0,$$scantron_config{'Qlength'})='';
    if (length($currentquest) < $$scantron_config{'Qlength'}) { next; }
    if ($$scantron_config{'Qon'} eq 'letter') {
       if (!$currentquest || $currentquest eq $$scantron_config{'Qoff'} ||
    $currentquest !~ /^[A-Z]$/) {
    $record{"scantron.$questnum.answer"}='';
    if (!&scan_data($scan_data,"$whichline.no_bubble.$questnum")) {
       push(@{$record{"scantron.missingerror"}},$questnum);
    }
       } else {
    $record{"scantron.$questnum.answer"}=$currentquest;
       }
    } elsif ($$scantron_config{'Qon'} eq 'number') {
       if (!$currentquest || $currentquest eq $$scantron_config{'Qoff'} ||
    $currentquest !~ /^\d$/) {
    $record{"scantron.$questnum.answer"}='';
    if (!&scan_data($scan_data,"$whichline.no_bubble.$questnum")) {
       push(@{$record{"scantron.missingerror"}},$questnum);
    }
       } else {
    $record{"scantron.$questnum.answer"}=
       $alphabet[$currentquest-1];
       }
    } else {
       my @array=split($$scantron_config{'Qon'},$currentquest,-1);
       if (length($array[0]) eq $$scantron_config{'Qlength'}) {
    $record{"scantron.$questnum.answer"}='';
    if (!&scan_data($scan_data,"$whichline.no_bubble.$questnum")) {
       push(@{$record{"scantron.missingerror"}},$questnum);
    }
       } else {
    $record{"scantron.$questnum.answer"}=
       $alphabet[length($array[0])];
       }
       if (scalar(@array) gt 2) {
    push(@{$record{'scantron.doubleerror'}},$questnum);
    my @ans=@array;
    my $i=length($ans[0]);shift(@ans);
    while ($#ans) {
       $i+=length($ans[0])+1;
       $record{"scantron.$questnum.answer"}.=$alphabet[$i];
       shift(@ans);
    }
       }
    }
       }
       $record{'scantron.maxquest'}=$questnum;
       return \%record;
   }
   
   sub scantron_add_delay {
       my ($delayqueue,$scanline,$errormessage,$errorcode)=@_;
       push(@$delayqueue,
    {'line' => $scanline, 'emsg' => $errormessage,
     'ecode' => $errorcode }
    );
   }
   
   sub scantron_find_student {
       my ($scantron_record,$scan_data,$idmap,$line)=@_;
       my $scanID=$$scantron_record{'scantron.ID'};
       if ($scanID =~ /^\s*$/) {
     return &scan_data($scan_data,"$line.user");
       }
       foreach my $id (keys(%$idmap)) {
     if (lc($id) eq lc($scanID)) {
        return $$idmap{$id};
     }
       }
       return undef;
   }
   
   sub scantron_filter {
       my ($curres)=@_;
                           # randomout is dysfunctional at best for this purpose
       if (ref($curres) && $curres->is_problem()) { #&& !$curres->randomout) {
    return 1;
       }
       return 0;
   }
   
   sub scantron_process_corrections {
       my ($r) = @_;
       my %scantron_config=&get_scantron_config($env{'form.scantron_format'});
       my ($scanlines,$scan_data)=&scantron_getfile();
       my $classlist=&Apache::loncoursedata::get_classlist();
       my $which=$env{'form.scantron_line'};
       my $line=&scantron_get_line($scanlines,$scan_data,$which);
       my ($skip,$err,$errmsg);
       if ($env{'form.scantron_skip_record'}) {
    $skip=1;
       } elsif ($env{'form.scantron_corrections'} =~ /^(duplicate|incorrect)ID$/) {
    my $newstudent=$env{'form.scantron_username'}.':'.
       $env{'form.scantron_domain'};
    my $newid=$classlist->{$newstudent}->[&Apache::loncoursedata::CL_ID];
    ($line,$err,$errmsg)=
       &scantron_fixup_scanline(\%scantron_config,$scan_data,$line,$which,
        'ID',{'newid'=>$newid,
       'username'=>$env{'form.scantron_username'},
       'domain'=>$env{'form.scantron_domain'}});
       } elsif ($env{'form.scantron_corrections'} =~ /^(duplicate|incorrect)CODE$/) {
    my $resolution=$env{'form.scantron_CODE_resolution'};
    my $newCODE;
    my %args;
    if      ($resolution eq 'use_unfound') {
       $newCODE='use_unfound';
    } elsif ($resolution eq 'use_found') {
       $newCODE=$env{'form.scantron_CODE_selectedvalue'};
    } elsif ($resolution eq 'use_typed') {
       $newCODE=$env{'form.scantron_CODE_newvalue'};
    } elsif ($resolution =~ /^use_closest_(\d+)/) {
       $newCODE=$env{"form.scantron_CODE_closest_$1"};
    }
    if ($env{'form.scantron_corrections'} eq 'duplicateCODE') {
       $args{'CODE_ignore_dup'}=1;
    }
    $args{'CODE'}=$newCODE;
    ($line,$err,$errmsg)=
       &scantron_fixup_scanline(\%scantron_config,$scan_data,$line,$which,
        'CODE',\%args);
       } elsif ($env{'form.scantron_corrections'} =~ /^(missing|double)bubble$/) {
    foreach my $question (split(',',$env{'form.scantron_questions'})) {
       ($line,$err,$errmsg)=
    &scantron_fixup_scanline(\%scantron_config,$scan_data,$line,
    $which,'answer',
    { 'question'=>$question,
          'response'=>$env{"form.scantron_correct_Q_$question"}});
       if ($err) { last; }
    }
       }
       if ($err) {
    $r->print("Unable to accept last correction, an error occurred :$errmsg:");
       } else {
    &scantron_put_line($scanlines,$scan_data,$which,$line,$skip);
    &scantron_putfile($scanlines,$scan_data);
       }
   }
   
   sub reset_skipping_status {
       my ($scanlines,$scan_data)=&scantron_getfile();
       &scan_data($scan_data,'remember_skipping',undef,1);
       &scantron_putfile(undef,$scan_data);
   }
   
   sub allow_skipping {
       my ($scan_data,$i)=@_;
       my %remembered=split(':',&scan_data($scan_data,'remember_skipping'));
       delete($remembered{$i});
       &scan_data($scan_data,'remember_skipping',join(':',%remembered));
   }
   
   sub should_be_skipped {
       my ($scan_data,$i)=@_;
       if ($env{'form.scantron_options_redo'} !~ /^redo_/) {
    # not redoing old skips
    return 0;
       }
       my %remembered=split(':',&scan_data($scan_data,'remember_skipping'));
       if (exists($remembered{$i})) { return 0; }
       return 1;
   }
   
   sub remember_current_skipped {
       my ($scanlines,$scan_data)=&scantron_getfile();
       my %to_remember;
       for (my $i=0;$i<=$scanlines->{'count'};$i++) {
    if ($scanlines->{'skipped'}[$i]) {
       $to_remember{$i}=1;
    }
       }
       &Apache::lonnet::logthis('remembering '.join(':',%to_remember));
       &scan_data($scan_data,'remember_skipping',join(':',%to_remember));
       &scantron_putfile(undef,$scan_data);
   }
   
   sub check_for_error {
       my ($r,$result)=@_;
       if ($result ne 'ok' && $result ne 'not_found' ) {
    $r->print("An error occured ($result) when trying to Remove the existing corrections.");
       }
   }
   
   sub scantron_warning_screen {
       my ($button_text)=@_;
       my $title=&Apache::lonnet::gettitle($env{'form.selectpage'});
       return (<<STUFF);
   <p>
   <font color="red">Please double check the information
                    below before clicking on '$button_text'</font>
   </p>
   <table>
   <tr><td><b>Sequence To be Graded:</b></td><td>$title</td></tr>
   <tr><td><b>Data File that will be used:</b></td><td><tt>$env{'form.scantron_selectfile'}</tt></td></tr>
   </table>
   </font>
   <br />
   <p> If this information is correct, please click on '$button_text'.</p>
   <p> If something is incorrect, please click the 'Grading Menu' button to start over.</p>
   
   <br />
   STUFF
   }
   
   sub scantron_do_warning {
       my ($r)=@_;
       my ($symb,$url)=&get_symb_and_url($r);
       if (!$symb) {return '';}
       my $default_form_data=&defaultFormData($symb,$url);
       $r->print(&scantron_form_start().$default_form_data);
       if ( $env{'form.selectpage'} eq '' ||
    $env{'form.scantron_selectfile'} eq '' ||
    $env{'form.scantron_format'} eq '' ) {
    $r->print("<p>You have forgetten to specify some information. Please go Back and try again.</p>");
    if ( $env{'form.selectpage'} eq '') {
       $r->print('<p><font color="red">You have not selected a Sequence to grade</font></p>');
    } 
    if ( $env{'form.scantron_selectfile'} eq '') {
       $r->print('<p><font color="red">You have not selected a file that contains the student\'s response data.</font></p>');
    } 
    if ( $env{'form.scantron_format'} eq '') {
       $r->print('<p><font color="red">You have not selected a the format of the student\'s response data.</font></p>');
    } 
       } else {
    my $warning=&scantron_warning_screen('Grading: Validate Records');
    $r->print(<<STUFF);
   $warning
   <input type="submit" name="submit" value="Grading: Validate Records" />
   <input type="hidden" name="command" value="scantron_validate" />
   STUFF
       }
       $r->print("</form><br />".&show_grading_menu_form($symb,$url)."</body></html>");
       return '';
   }
   
   sub scantron_form_start {
       my ($max_bubble)=@_;
       my $result= <<SCANTRONFORM;
   <form method="post" enctype="multipart/form-data" action="/adm/grades" name="scantronupload">
     <input type="hidden" name="selectpage" value="$env{'form.selectpage'}" />
     <input type="hidden" name="scantron_format" value="$env{'form.scantron_format'}" />
     <input type="hidden" name="scantron_selectfile" value="$env{'form.scantron_selectfile'}" />
     <input type="hidden" name="scantron_maxbubble" value="$max_bubble" />
     <input type="hidden" name="scantron_CODElist" value="$env{'form.scantron_CODElist'}" />
     <input type="hidden" name="scantron_CODEunique" value="$env{'form.scantron_CODEunique'}" />
     <input type="hidden" name="scantron_options_redo" value="$env{'form.scantron_options_redo'}" />
     <input type="hidden" name="scantron_options_ignore" value="$env{'form.scantron_options_ignore'}" />
   SCANTRONFORM
       return $result;
   }
   
   sub scantron_validate_file {
       my ($r) = @_;
       my ($symb,$url)=&get_symb_and_url($r);
       if (!$symb) {return '';}
       my $default_form_data=&defaultFormData($symb,$url);
       
       # do the detection of only doing skipped records first befroe we delete
       # them  when doing the corrections reset
       if ($env{'form.scantron_options_redo'} ne 'redo_skipped_ready') {
    &reset_skipping_status();
       }
       if ($env{'form.scantron_options_redo'} eq 'redo_skipped') {
    &remember_current_skipped();
    &scantron_remove_file('skipped');
    $env{'form.scantron_options_redo'}='redo_skipped_ready';
       }
   
       if ($env{'form.scantron_options_ignore'} eq 'ignore_corrections') {
    &check_for_error($r,&scantron_remove_file('corrected'));
    &check_for_error($r,&scantron_remove_file('skipped'));
    &check_for_error($r,&scantron_remove_scan_data());
    $env{'form.scantron_options_ignore'}='done';
       }
   
       if ($env{'form.scantron_corrections'}) {
    &scantron_process_corrections($r);
       }
       $r->print("<p>Gathering neccessary info.</p>");$r->rflush();
       #get the student pick code ready
       $r->print(&Apache::loncommon::studentbrowser_javascript());
       my $max_bubble=&scantron_get_maxbubble($r);
       my $result=&scantron_form_start($max_bubble).$default_form_data;
       $r->print($result);
       
       my @validate_phases=( 'ID',
     'CODE',
     'doublebubble',
     'missingbubbles');
       if (!$env{'form.validatepass'}) {
    $env{'form.validatepass'} = 0;
       }
       my $currentphase=$env{'form.validatepass'};
   
       my $stop=0;
       while (!$stop && $currentphase < scalar(@validate_phases)) {
    $r->print("<p> Validating ".$validate_phases[$currentphase]."</p>");
    $r->rflush();
    my $which="scantron_validate_".$validate_phases[$currentphase];
    {
       no strict 'refs';
       ($stop,$currentphase)=&$which($r,$currentphase);
    }
       }
       if (!$stop) {
    my $warning=&scantron_warning_screen('Start Grading');
    $r->print(<<STUFF);
   Validation process complete.<br />
   $warning
   <input type="submit" name="submit" value="Start Grading" />
   <input type="hidden" name="command" value="scantron_process" />
   STUFF
   
       } else {
    $r->print('<input type="hidden" name="command" value="scantron_validate" />');
    $r->print("<input type='hidden' name='validatepass' value='".$currentphase."' />");
       }
       if ($stop) {
    $r->print('<input type="submit" name="submit" value="Continue ->" />');
    $r->print(' using corrected info <br />');
    $r->print("<input type='submit' value='Skip' name='scantron_skip_record' />");
    $r->print(" this scanline saving it for later.");
       }
       $r->print(" </form><br />".&show_grading_menu_form($symb,$url).
         "</body></html>");
       return '';
   }
   
   sub scantron_remove_file {
       my ($which)=@_;
       my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
       my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
       my $file='scantron_';
       if ($which eq 'corrected' || $which eq 'skipped') {
    $file.=$which.'_';
       } else {
    return 'refused';
       }
       $file.=$env{'form.scantron_selectfile'};
       return &Apache::lonnet::removeuserfile($cname,$cdom,$file);
   }
   
   sub scantron_remove_scan_data {
       my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
       my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
       my @keys=&Apache::lonnet::getkeys('nohist_scantrondata',$cdom,$cname);
       my @todelete;
       my $filename=$env{'form.scantron_selectfile'};
       foreach my $key (@keys) {
    if ($key=~/^\Q$filename\E_/) {
       if ($env{'form.scantron_options_redo'} eq 'redo_skipped_ready' &&
    $key=~/remember_skipping/) {
    next;
       }
       push(@todelete,$key);
    }
       }
       my $result;
       if (@todelete) {
    $result=&Apache::lonnet::del('nohist_scantrondata',\@todelete,$cdom,$cname);
       }
       return $result;
   }
   
   sub scantron_getfile {
       #FIXME really would prefer a scantron directory
       my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
       my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
       my $lines;
       $lines=&Apache::lonnet::getfile('/uploaded/'.$cdom.'/'.$cname.'/'.
          'scantron_orig_'.$env{'form.scantron_selectfile'});
       my %scanlines;
       $scanlines{'orig'}=[(split("\n",$lines,-1))];
       my $temp=$scanlines{'orig'};
       $scanlines{'count'}=$#$temp;
   
       $lines=&Apache::lonnet::getfile('/uploaded/'.$cdom.'/'.$cname.'/'.
          'scantron_corrected_'.$env{'form.scantron_selectfile'});
       if ($lines eq '-1') {
    $scanlines{'corrected'}=[];
       } else {
    $scanlines{'corrected'}=[(split("\n",$lines,-1))];
       }
       $lines=&Apache::lonnet::getfile('/uploaded/'.$cdom.'/'.$cname.'/'.
          'scantron_skipped_'.$env{'form.scantron_selectfile'});
       if ($lines eq '-1') {
    $scanlines{'skipped'}=[];
       } else {
    $scanlines{'skipped'}=[(split("\n",$lines,-1))];
       }
       my @tmp=&Apache::lonnet::dump('nohist_scantrondata',$cdom,$cname);
       if ($tmp[0] =~ /^(error:|no_such_host)/) { @tmp=(); }
       my %scan_data = @tmp;
       return (\%scanlines,\%scan_data);
   }
   
   sub lonnet_putfile {
       my ($contents,$filename)=@_;
       my $docuname=$env{'course.'.$env{'request.course.id'}.'.num'};
       my $docudom=$env{'course.'.$env{'request.course.id'}.'.domain'};
       my $docuhome=$env{'course.'.$env{'request.course.id'}.'.home'};
       $env{'form.sillywaytopassafilearound'}=$contents;
       &Apache::lonnet::finishuserfileupload($docuname,$docudom,$docuhome,'sillywaytopassafilearound',$filename);
   
   }
   
   sub scantron_putfile {
       my ($scanlines,$scan_data) = @_;
       #FIXME really would prefer a scantron directory
       my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
       my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
       if ($scanlines) {
    my $prefix='scantron_';
   # no need to update orig, shouldn't change
   #   &lonnet_putfile(join("\n",@{$scanlines->{'orig'}}),$prefix.'orig_'.
   #    $env{'form.scantron_selectfile'});
    &lonnet_putfile(join("\n",@{$scanlines->{'corrected'}}),
    $prefix.'corrected_'.
    $env{'form.scantron_selectfile'});
    &lonnet_putfile(join("\n",@{$scanlines->{'skipped'}}),
    $prefix.'skipped_'.
    $env{'form.scantron_selectfile'});
       }
       &Apache::lonnet::put('nohist_scantrondata',$scan_data,$cdom,$cname);
   }
   
   sub scantron_get_line {
       my ($scanlines,$scan_data,$i)=@_;
       if (&should_be_skipped($scan_data,$i)) { return undef; }
       if ($scanlines->{'skipped'}[$i]) { return undef; }
       if ($scanlines->{'corrected'}[$i]) {return $scanlines->{'corrected'}[$i];}
       return $scanlines->{'orig'}[$i]; 
   }
   
   sub get_todo_count {
       my ($scanlines,$scan_data)=@_;
       my $count=0;
       for (my $i=0;$i<=$scanlines->{'count'};$i++) {
    my $line=&scantron_get_line($scanlines,$scan_data,$i);
    if ($line=~/^[\s\cz]*$/) { next; }
    $count++;
       }
       return $count;
   }
   
   sub scantron_put_line {
       my ($scanlines,$scan_data,$i,$newline,$skip)=@_;
       if ($skip) {
    $scanlines->{'skipped'}[$i]=$newline;
    &allow_skipping($scan_data,$i);
    return;
       }
       $scanlines->{'corrected'}[$i]=$newline;
   }
   
   sub scantron_validate_ID {
       my ($r,$currentphase) = @_;
       
       #get student info
       my $classlist=&Apache::loncoursedata::get_classlist();
       my %idmap=&username_to_idmap($classlist);
   
       #get scantron line setup
       my %scantron_config=&get_scantron_config($env{'form.scantron_format'});
       my ($scanlines,$scan_data)=&scantron_getfile();
   
       my %found=('ids'=>{},'usernames'=>{});
       for (my $i=0;$i<=$scanlines->{'count'};$i++) {
    my $line=&scantron_get_line($scanlines,$scan_data,$i);
    if ($line=~/^[\s\cz]*$/) { next; }
    my $scan_record=&scantron_parse_scanline($line,$i,\%scantron_config,
    $scan_data);
    my $id=$$scan_record{'scantron.ID'};
    my $found;
    foreach my $checkid (keys(%idmap)) {
       if (lc($checkid) eq lc($id)) { $found=$checkid;last; }
    }
    if ($found) {
       my $username=$idmap{$found};
       if ($found{'ids'}{$found}) {
    &scantron_get_correction($r,$i,$scan_record,\%scantron_config,
    $line,'duplicateID',$found);
    return(1,$currentphase);
       } elsif ($found{'usernames'}{$username}) {
    &scantron_get_correction($r,$i,$scan_record,\%scantron_config,
    $line,'duplicateID',$username);
    return(1,$currentphase);
       }
       #FIXME store away line we previously saw the ID on to use above
       $found{'ids'}{$found}++;
       $found{'usernames'}{$username}++;
    } else {
       if ($id =~ /^\s*$/) {
    my $username=&scan_data($scan_data,"$i.user");
    if (defined($username) && $found{'usernames'}{$username}) {
       &scantron_get_correction($r,$i,$scan_record,
        \%scantron_config,
        $line,'duplicateID',$username);
       return(1,$currentphase);
    } elsif (!defined($username)) {
       &scantron_get_correction($r,$i,$scan_record,
        \%scantron_config,
        $line,'incorrectID');
       return(1,$currentphase);
    }
    $found{'usernames'}{$username}++;
       } else {
    &scantron_get_correction($r,$i,$scan_record,\%scantron_config,
    $line,'incorrectID');
    return(1,$currentphase);
       }
    }
       }
   
       return (0,$currentphase+1);
   }
   
   sub scantron_get_correction {
       my ($r,$i,$scan_record,$scan_config,$line,$error,$arg)=@_;
   
   #FIXME in the case of a duplicated ID the previous line, probaly need
   #to show both the current line and the previous one and allow skipping
   #the previous one or the current one
   
       $r->print("<p><b>An error was detected ($error)</b>");
       if ( defined($$scan_record{'scantron.PaperID'}) ) {
    $r->print(" for PaperID <tt>".
     $$scan_record{'scantron.PaperID'}."</tt> \n");
       } else {
    $r->print(" in scanline $i <pre>".
     $line."</pre> \n");
       }
       my $message="<p>The ID on the form is  <tt>".
    $$scan_record{'scantron.ID'}."</tt><br />\n".
    "The name on the paper is ".
    $$scan_record{'scantron.LastName'}.",".
    $$scan_record{'scantron.FirstName'}."</p>";
   
       $r->print('<input type="hidden" name="scantron_corrections" value="'.$error.'" />'."\n");
       $r->print('<input type="hidden" name="scantron_line" value="'.$i.'" />'."\n");
       if ($error =~ /ID$/) {
    if ($error eq 'incorrectID') {
       $r->print("The encoded ID is not in the classlist</p>\n");
    } elsif ($error eq 'duplicateID') {
       $r->print("The encoded ID has also been used by a previous paper $arg</p>\n");
    }
    $r->print($message);
    $r->print("<p>How should I handle this? <br /> \n");
    $r->print("\n<ul><li> ");
    #FIXME it would be nice if this sent back the user ID and
    #could do partial userID matches
    $r->print(&Apache::loncommon::selectstudent_link('scantronupload',
          'scantron_username','scantron_domain'));
    $r->print(": <input type='text' name='scantron_username' value='' />");
    $r->print("\n@".
    &Apache::loncommon::select_dom_form($env{'request.role.domain'},'scantron_domain'));
   
    $r->print('</li>');
       } elsif ($error =~ /CODE$/) {
    if ($error eq 'incorrectCODE') {
       $r->print("</p><p>The encoded CODE is not in the list of possible CODEs</p>\n");
    } elsif ($error eq 'duplicateCODE') {
       $r->print("</p><p>The encoded CODE has also been used by a previous paper ".join(', ',@{$arg}).", and CODEs are supposed to be unique</p>\n");
    }
    $r->print("<p>The CODE on the form is  <tt>'".
     $$scan_record{'scantron.CODE'}."'</tt><br />\n");
    $r->print($message);
    $r->print("<p>How should I handle this? <br /> \n");
    $r->print("\n<br /> ");
    my $i=0;
    if ($error eq 'incorrectCODE' 
       && $$scan_record{'scantron.CODE'}=~/\S/ ) {
       my ($max,$closest)=&scantron_get_closely_matching_CODEs($arg,$$scan_record{'scantron.CODE'});
       foreach my $testcode (@{$closest}) {
    my $checked='';
    if (!$i) { $checked=' checked="on" '; }
    $r->print("<label><input type='radio' name='scantron_CODE_resolution' value='use_closest_$i' $checked /> Use the similar CODE <b><tt>".$testcode."</tt></b> instead.</label><input type='hidden' name='scantron_CODE_closest_$i' value='$testcode' />");
    $r->print("\n<br />");
    $i++;
       }
    }
    if ($$scan_record{'scantron.CODE'}=~/\S/ ) {
       my $checked; if (!$i) { $checked=' checked="on" '; }
       $r->print("<label><input type='radio' name='scantron_CODE_resolution' value='use_unfound' $checked /> Use the CODE <b><tt>".$$scan_record{'scantron.CODE'}."</tt></b> that is was on the paper, ignoring the error.</label>");
       $r->print("\n<br />");
    }
   
    $r->print(<<ENDSCRIPT);
   <script type="text/javascript">
   function change_radio(field) {
       var slct=document.scantronupload.scantron_CODE_resolution;
       var i;
       for (i=0;i<slct.length;i++) {
           if (slct[i].value==field) { slct[i].checked=true; }
       }
   }
   </script>
   ENDSCRIPT
    my $href="/adm/pickcode?".
      "form=".&Apache::lonnet::escape("scantronupload").
      "&scantron_format=".&Apache::lonnet::escape($env{'form.scantron_format'}).
      "&scantron_CODElist=".&Apache::lonnet::escape($env{'form.scantron_CODElist'}).
      "&curCODE=".&Apache::lonnet::escape($$scan_record{'scantron.CODE'}).
      "&scantron_selectfile=".&Apache::lonnet::escape($env{'form.scantron_selectfile'});
    $r->print("<label><input type='radio' name='scantron_CODE_resolution' value='use_found' /> <a target='_blank' href='$href'>Select</a> a CODE from the list of all CODEs and use it.</label> Selected CODE is <input readonly='true' type='text' size='8' name='scantron_CODE_selectedvalue' onfocus=\"javascript:change_radio('use_found')\" onchange=\"javascript:change_radio('use_found')\" />");
    $r->print("\n<br />");
    $r->print("<label><input type='radio' name='scantron_CODE_resolution' value='use_typed' /> Use </label><input type='text' size='8' name='scantron_CODE_newvalue' onfocus=\"javascript:change_radio('use_typed')\" onkeypress=\"javascript:change_radio('use_typed')\" /> as the CODE.");
    $r->print("\n<br /><br />");
       } elsif ($error eq 'doublebubble') {
    $r->print("<p>There have been multiple bubbles scanned for a some question(s)</p>\n");
    $r->print('<input type="hidden" name="scantron_questions" value="'.
     join(',',@{$arg}).'" />');
    $r->print($message);
    $r->print("<p>Please indicate which bubble should be used for grading</p>");
    foreach my $question (@{$arg}) {
       my $selected=$$scan_record{"scantron.$question.answer"};
       &scantron_bubble_selector($r,$scan_config,$question,split('',$selected));
    }
       } elsif ($error eq 'missingbubble') {
    $r->print("<p>There have been <b>no</b> bubbles scanned for some question(s)</p>\n");
    $r->print($message);
    $r->print("<p>Please indicate which bubble should be used for grading</p>");
    $r->print("Some questions have no scanned bubbles\n");
    $r->print('<input type="hidden" name="scantron_questions" value="'.
     join(',',@{$arg}).'" />');
    foreach my $question (@{$arg}) {
       my $selected=$$scan_record{"scantron.$question.answer"};
       &scantron_bubble_selector($r,$scan_config,$question);
    }
       } else {
    $r->print("\n<ul>");
       }
       $r->print("\n</li></ul>");
   
   }
   
   sub scantron_bubble_selector {
       my ($r,$scan_config,$quest,@selected)=@_;
       my $max=$$scan_config{'Qlength'};
       my @alphabet=('A'..'Z');
       $r->print("<table border='1'><tr><td rowspan='2'>$quest</td>");
       for (my $i=0;$i<$max+1;$i++) {
    $r->print('<td align="center">');
    if ($selected[0] eq $alphabet[$i]) { $r->print('X'); shift(@selected) }
    else { $r->print('&nbsp;'); }
    $r->print('</td>');
       }
       $r->print('<td></td></tr><tr>');
       for (my $i=0;$i<$max;$i++) {
    $r->print('<td><label><input type="radio" name="scantron_correct_Q_'.
     $quest.'" value="'.$i.'" />'.$alphabet[$i]."</label></td>");
       }
       $r->print('<td><label><input type="radio" name="scantron_correct_Q_'.
         $quest.'" value="none" /> No bubble </label></td>');
       $r->print('</tr></table>');
   }
   
   sub num_matches {
       my ($orig,$code) = @_;
       my @code=split(//,$code);
       my @orig=split(//,$orig);
       my $same=0;
       for (my $i=0;$i<scalar(@code);$i++) {
    if ($code[$i] eq $orig[$i]) { $same++; }
       }
       return $same;
   }
   
   sub scantron_get_closely_matching_CODEs {
       my ($allcodes,$CODE)=@_;
       my @CODEs;
       foreach my $testcode (sort(keys(%{$allcodes}))) {
    push(@{$CODEs[&num_matches($CODE,$testcode)]},$testcode);
       }
   
       return ($#CODEs,$CODEs[-1]);
   }
   
   sub get_codes {
       my $old_name=$env{'form.scantron_CODElist'};
       my $cdom =$env{'course.'.$env{'request.course.id'}.'.domain'};
       my $cnum =$env{'course.'.$env{'request.course.id'}.'.num'};
       my %result=&Apache::lonnet::get('CODEs',[$old_name],$cdom,$cnum);
       my %allcodes=map {(&Apache::lonprintout::num_to_letters($_),1)} split(',',$result{$old_name});
       return %allcodes;
   }
   
   sub scantron_validate_CODE {
       my ($r,$currentphase) = @_;
       my %scantron_config=&get_scantron_config($env{'form.scantron_format'});
       if ($scantron_config{'CODElocation'} &&
    $scantron_config{'CODEstart'} &&
    $scantron_config{'CODElength'}) {
    if (!defined($env{'form.scantron_CODElist'})) {
       &FIXME_blow_up()
    }
       } else {
    return (0,$currentphase+1);
       }
       
       my %usedCODEs;
   
       my %allcodes=&get_codes();
   
       my ($scanlines,$scan_data)=&scantron_getfile();
       for (my $i=0;$i<=$scanlines->{'count'};$i++) {
    my $line=&scantron_get_line($scanlines,$scan_data,$i);
    if ($line=~/^[\s\cz]*$/) { next; }
    my $scan_record=&scantron_parse_scanline($line,$i,\%scantron_config,
    $scan_data);
    my $CODE=$$scan_record{'scantron.CODE'};
    my $error=0;
    if (!&Apache::lonnet::validCODE($CODE)) {
       &scantron_get_correction($r,$i,$scan_record,
        \%scantron_config,
        $line,'incorrectCODE',\%allcodes);
       return(1,$currentphase);
    }
    if (%allcodes && !exists($allcodes{$CODE}) 
       && !$$scan_record{'scantron.useCODE'}) {
       &scantron_get_correction($r,$i,$scan_record,
        \%scantron_config,
        $line,'incorrectCODE',\%allcodes);
       return(1,$currentphase);
    }
    if (exists($usedCODEs{$CODE}) 
       && $env{'form.scantron_CODEunique'} eq 'yes'
       && !$$scan_record{'scantron.CODE_ignore_dup'}) {
       &scantron_get_correction($r,$i,$scan_record,
        \%scantron_config,
        $line,'duplicateCODE',$usedCODEs{$CODE});
       return(1,$currentphase);
    }
    push (@{$usedCODEs{$CODE}},$$scan_record{'scantron.PaperID'});
       }
       return (0,$currentphase+1);
   }
   
   sub scantron_validate_doublebubble {
       my ($r,$currentphase) = @_;
       #get student info
       my $classlist=&Apache::loncoursedata::get_classlist();
       my %idmap=&username_to_idmap($classlist);
   
       #get scantron line setup
       my %scantron_config=&get_scantron_config($env{'form.scantron_format'});
       my ($scanlines,$scan_data)=&scantron_getfile();
       for (my $i=0;$i<=$scanlines->{'count'};$i++) {
    my $line=&scantron_get_line($scanlines,$scan_data,$i);
    if ($line=~/^[\s\cz]*$/) { next; }
    my $scan_record=&scantron_parse_scanline($line,$i,\%scantron_config,
    $scan_data);
    if (!defined($$scan_record{'scantron.doubleerror'})) { next; }
    &scantron_get_correction($r,$i,$scan_record,\%scantron_config,$line,
    'doublebubble',
    $$scan_record{'scantron.doubleerror'});
       return (1,$currentphase);
       }
       return (0,$currentphase+1);
   }
   
   sub scantron_get_maxbubble {
       my ($r)=@_;
       if (defined($env{'form.scantron_maxbubble'}) &&
    $env{'form.scantron_maxbubble'}) {
    return $env{'form.scantron_maxbubble'};
       }
       my $navmap=Apache::lonnavmaps::navmap->new();
       my (undef,undef,$sequence)=
    &Apache::lonnet::decode_symb($env{'form.selectpage'});
       my $map=$navmap->getResourceByUrl($sequence);
       my @resources=$navmap->retrieveResources($map,\&scantron_filter,1,0);
       &Apache::lonnet::delenv('form.counter');
       foreach my $resource (@resources) {
    my $result=&Apache::lonnet::ssi($resource->src().'?symb='.&Apache::lonnet::escape($resource->symb()));
       }
       &Apache::lonnet::delenv('scantron\.');
       my $envfile=$env{'user.environment'};
       $envfile=~/\/([^\/]+)\.id$/;
       $envfile=$1;
       &Apache::lonnet::transfer_profile_to_env($r->dir_config('lonIDsDir'),
        $envfile);
       $env{'form.scantron_maxbubble'}=$env{'form.counter'}-1;
       return $env{'form.scantron_maxbubble'};
   }
   
   sub scantron_validate_missingbubbles {
       my ($r,$currentphase) = @_;
       #get student info
       my $classlist=&Apache::loncoursedata::get_classlist();
       my %idmap=&username_to_idmap($classlist);
   
       #get scantron line setup
       my %scantron_config=&get_scantron_config($env{'form.scantron_format'});
       my ($scanlines,$scan_data)=&scantron_getfile();
       my $max_bubble=&scantron_get_maxbubble();
       if (!$max_bubble) { $max_bubble=2**31; }
       for (my $i=0;$i<=$scanlines->{'count'};$i++) {
    my $line=&scantron_get_line($scanlines,$scan_data,$i);
    if ($line=~/^[\s\cz]*$/) { next; }
    my $scan_record=&scantron_parse_scanline($line,$i,\%scantron_config,
    $scan_data);
    if (!defined($$scan_record{'scantron.missingerror'})) { next; }
    my @to_correct;
    foreach my $missing (@{$$scan_record{'scantron.missingerror'}}) {
       if ($missing > $max_bubble) { next; }
       push(@to_correct,$missing);
    }
    if (@to_correct) {
       &scantron_get_correction($r,$i,$scan_record,\%scantron_config,
        $line,'missingbubble',\@to_correct);
       return (1,$currentphase);
    }
   
       }
       return (0,$currentphase+1);
   }
   
   sub scantron_process_students {
       my ($r) = @_;
       my (undef,undef,$sequence)=&Apache::lonnet::decode_symb($env{'form.selectpage'});
       my ($symb,$url)=&get_symb_and_url($r);
       if (!$symb) {return '';}
       my $default_form_data=&defaultFormData($symb,$url);
   
       my %scantron_config=&get_scantron_config($env{'form.scantron_format'});
       my ($scanlines,$scan_data)=&scantron_getfile();
       my $classlist=&Apache::loncoursedata::get_classlist();
       my %idmap=&username_to_idmap($classlist);
       my $navmap=Apache::lonnavmaps::navmap->new();
       my $map=$navmap->getResourceByUrl($sequence);
       my @resources=$navmap->retrieveResources($map,\&scantron_filter,1,0);
   #    $r->print("geto ".scalar(@resources)."<br />");
       my $result= <<SCANTRONFORM;
   <form method="post" enctype="multipart/form-data" action="/adm/grades" name="scantronupload">
     <input type="hidden" name="command" value="scantron_configphase" />
     $default_form_data
   SCANTRONFORM
       $r->print($result);
   
       my @delayqueue;
       my %completedstudents;
       
       my $count=&get_todo_count($scanlines,$scan_data);
       my %prog_state=&Apache::lonhtmlcommon::Create_PrgWin($r,'Scantron Status',
        'Scantron Progress',$count,
       'inline',undef,'scantronupload');
       &Apache::lonhtmlcommon::Update_PrgWin($r,\%prog_state,
     'Processing first student');
       my $start=&Time::HiRes::time();
       my $i=-1;
       my ($uname,$udom,$started);
       while ($i<$scanlines->{'count'}) {
     ($uname,$udom)=('','');
     $i++;
     my $line=&scantron_get_line($scanlines,$scan_data,$i);
     if ($line=~/^[\s\cz]*$/) { next; }
    if ($started) {
       &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,
        'last student');
    }
    $started=1;
     my $scan_record=&scantron_parse_scanline($line,$i,\%scantron_config,
     $scan_data);
     unless ($uname=&scantron_find_student($scan_record,$scan_data,
          \%idmap,$i)) {
        &scantron_add_delay(\@delayqueue,$line,
     'Unable to find a student that matches',1);
        next;
     }
     if (exists $completedstudents{$uname}) {
        &scantron_add_delay(\@delayqueue,$line,
     'Student '.$uname.' has multiple sheets',2);
        next;
     }
     ($uname,$udom)=split(/:/,$uname);
     &Apache::lonnet::delenv('form.counter');
     &Apache::lonnet::appenv(%$scan_record);
   
    my $i=0;
    foreach my $resource (@resources) {
       $i++;
       my %form=('submitted'     =>'scantron',
         'grade_target'  =>'grade',
         'grade_username'=>$uname,
         'grade_domain'  =>$udom,
         'grade_courseid'=>$env{'request.course.id'},
         'grade_symb'    =>$resource->symb());
       if (exists($scan_record->{'scantron.CODE'}) &&
    $scan_record->{'scantron.CODE'}) {
    $form{'CODE'}=$scan_record->{'scantron.CODE'};
       } else {
    $form{'CODE'}='';
       }
       my $result=&Apache::lonnet::ssi($resource->src(),%form);
       if ($result ne '') {
    &Apache::lonnet::logthis("scantron grading error -> $result");
    &Apache::lonnet::logthis("scantron grading error info name $uname domain $udom course $env{'request.course.id'} url ".$resource->src());
       }
       if (&Apache::loncommon::connection_aborted($r)) { last; }
    }
    $completedstudents{$uname}={'line'=>$line};
    if (&Apache::loncommon::connection_aborted($r)) { last; }
       } continue {
    &Apache::lonnet::delenv('form.counter');
    &Apache::lonnet::delenv('scantron\.');
       }
       &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
   #    my $lasttime = &Time::HiRes::time()-$start;
   #    $r->print("<p>took $lasttime</p>");
   
       $r->print("</form>");
       $r->print(&show_grading_menu_form($symb,$url));
       return '';
   }
   
   sub scantron_upload_scantron_data {
       my ($r)=@_;
       $r->print(&Apache::loncommon::coursebrowser_javascript($env{'request.role.domain'}));
       my $select_link=&Apache::loncommon::selectcourse_link('rules','courseid',
     'domainid',
     'coursename');
       my $domsel=&Apache::loncommon::select_dom_form($env{'request.role.domain'},
      'domainid');
       my $default_form_data=&defaultFormData(&get_symb_and_url($r,1));
       $r->print(<<UPLOAD);
   <script type="text/javascript" language="javascript">
       function checkUpload(formname) {
    if (formname.upfile.value == "") {
       alert("Please use the browse button to select a file from your local directory.");
       return false;
    }
    formname.submit();
       }
   </script>
   
   <form enctype='multipart/form-data' action='/adm/grades' name='rules' method='post'>
   $default_form_data
   <table>
   <tr><td>$select_link </td></tr>
   <tr><td>Course ID:   </td><td><input name='courseid' type='text' />  </td></tr>
   <tr><td>Course Name: </td><td><input name='coursename' type='text' /></td></tr>
   <tr><td>Domain:      </td><td>$domsel                                </td></tr>
   <tr><td>File to upload:</td><td><input type="file" name="upfile" size="50" /></td></tr>
   </table>
   <input name='command' value='scantronupload_save' type='hidden' />
   <input type="button" onClick="javascript:checkUpload(this.form);" value="Upload Scantron Data" />
   </form>
   UPLOAD
       return '';
   }
   
   sub scantron_upload_scantron_data_save {
       my($r)=@_;
       my ($symb,$url)=&get_symb_and_url($r,1);
       my $doanotherupload=
    '<br /><form action="/adm/grades" method="post">'."\n".
    '<input type="hidden" name="command" value="scantronupload" />'."\n".
    '<input type="submit" name="submit" value="Do Another Upload" />'."\n".
    '</form>'."\n";
       if (!&Apache::lonnet::allowed('usc',$env{'form.domainid'}) &&
    !&Apache::lonnet::allowed('usc',
       $env{'form.domainid'}.'_'.$env{'form.courseid'})) {
    $r->print("You are not allowed to upload Scantron data to the requested course.<br />");
    if ($symb) {
       $r->print(&show_grading_menu_form($symb,$url));
    } else {
       $r->print($doanotherupload);
    }
    return '';
       }
       my %coursedata=&Apache::lonnet::coursedescription($env{'form.domainid'}.'_'.$env{'form.courseid'});
       $r->print("Doing upload to ".$coursedata{'description'}." <br />");
       my $home=&Apache::lonnet::homeserver($env{'form.courseid'},
    $env{'form.domainid'});
       my $fname=$env{'form.upfile.filename'};
       #FIXME
       #copied from lonnet::userfileupload()
       #make that function able to target a specified course
       # Replace Windows backslashes by forward slashes
       $fname=~s/\\/\//g;
       # Get rid of everything but the actual filename
       $fname=~s/^.*\/([^\/]+)$/$1/;
       # Replace spaces by underscores
       $fname=~s/\s+/\_/g;
       # Replace all other weird characters by nothing
       $fname=~s/[^\w\.\-]//g;
       # See if there is anything left
       unless ($fname) { return 'error: no uploaded file'; }
       my $uploadedfile=$fname;
       $fname='scantron_orig_'.$fname;
       if (length($env{'form.upfile'}) < 2) {
    $r->print("<font color='red'>Error:</font> The file you attempted to upload, <tt>".&HTML::Entities::encode($env{'form.upfile.filename'},'<>&"')."</tt>, contained no information. Please check that you entered the correct filename.");
       } else {
    my $result=&Apache::lonnet::finishuserfileupload($env{'form.courseid'},$env{'form.domainid'},$home,'upfile',$fname);
    if ($result =~ m|^/uploaded/|) {
       $r->print("<font color='green'>Success:</font> Successfully uploaded ".(length($env{'form.upfile'})-1)." bytes of data into location <tt>".$result."</tt>");
    } else {
       $r->print("<font color='red'>Error:</font> An error (".$result.") occurred when attempting to upload the file, <tt>".&HTML::Entities::encode($env{'form.upfile.filename'},'<>&"')."</tt>");
    }
       }
       if ($symb) {
    $r->print(&scantron_selectphase($r,$uploadedfile));
       } else {
    $r->print($doanotherupload);
       }
       return '';
   }
   
   sub valid_file {
       my ($requested_file)=@_;
       foreach my $filename (sort(&scantron_filenames())) {
    &Apache::lonnet::logthis("$requested_file  $filename");
    if ($requested_file eq $filename) { return 1; }
       }
       return 0;
   }
   
   sub scantron_download_scantron_data {
       my ($r)=@_;
       my $default_form_data=&defaultFormData(&get_symb_and_url($r,1));
       my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
       my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
       my $file=$env{'form.scantron_selectfile'};
       if (! &valid_file($file)) {
    $r->print(<<ERROR);
    <p>
       The requested file name was invalid.
           </p>
   ERROR
    $r->print(&show_grading_menu_form(&get_symb_and_url($r,1)));
    return;
       }
       my $orig='/uploaded/'.$cdom.'/'.$cname.'/scantron_orig_'.$file;
       my $corrected='/uploaded/'.$cdom.'/'.$cname.'/scantron_corrected_'.$file;
       my $skipped='/uploaded/'.$cdom.'/'.$cname.'/scantron_skipped_'.$file;
       &Apache::lonnet::allowuploaded('/adm/grades',$orig);
       &Apache::lonnet::allowuploaded('/adm/grades',$corrected);
       &Apache::lonnet::allowuploaded('/adm/grades',$skipped);
       $r->print(<<DOWNLOAD);
       <p>
    <a href="$orig">Original</a> file as uploaded by the scantron office.
       </p>
       <p>
    <a href="$corrected">Corrections</a>, a file of corrected records that were used in grading.
       </p>
       <p>
    <a href="$skipped">Skipped</a>, a file of records that were skipped.
       </p>
   DOWNLOAD
       $r->print(&show_grading_menu_form(&get_symb_and_url($r,1)));
       return '';
   }
   
   #-------- end of section for handling grading scantron forms -------
   #
   #-------------------------------------------------------------------
   
   #-------------------------- Menu interface -------------------------
   #
   #--- Show a Grading Menu button - Calls the next routine ---
   sub show_grading_menu_form {
       my ($symb,$url)=@_;
       my $result.='<br /><form action="/adm/grades" method="post">'."\n".
    '<input type="hidden" name="symb" value="'.$symb.'" />'."\n".
    '<input type="hidden" name="url" value="'.$url.'" />'."\n".
    '<input type="hidden" name="saveState"  value="'.$env{'form.saveState'}.'" />'."\n".
    '<input type="hidden" name="command" value="gradingmenu" />'."\n".
    '<input type="submit" name="submit" value="Grading Menu" />'."\n".
    '</form>'."\n";
       return $result;
   }
   
   # -- Retrieve choices for grading form
   sub savedState {
       my %savedState = ();
       if ($env{'form.saveState'}) {
    foreach (split(/:/,$env{'form.saveState'})) {
       my ($key,$value) = split(/=/,$_,2);
       $savedState{$key} = $value;
    }
       }
       return \%savedState;
   }
   
   #--- Displays the main menu page -------
   sub gradingmenu {
       my ($request) = @_;
       my ($symb,$url)=&get_symb_and_url($request);
       if (!$symb) {return '';}
       my $probTitle = &Apache::lonnet::gettitle($symb);
   
       $request->print(<<GRADINGMENUJS);
   <script type="text/javascript" language="javascript">
       function checkChoice(formname,val,cmdx) {
    if (val <= 2) {
       var cmd = radioSelection(formname.radioChoice);
       var cmdsave = cmd;
    } else {
       cmd = cmdx;
       cmdsave = 'submission';
    }
    formname.command.value = cmd;
    formname.saveState.value = "saveCmd="+cmdsave+":saveSec="+pullDownSelection(formname.section)+
       ":saveSub="+pullDownSelection(formname.submitonly)+":saveStatus="+pullDownSelection(formname.Status);
    if (val < 5) formname.submit();
    if (val == 5) {
       if (!checkReceiptNo(formname,'notOK')) { return false;}
       formname.submit();
    }
    if (val < 7) formname.submit();
       }
   
       function checkReceiptNo(formname,nospace) {
    var receiptNo = formname.receipt.value;
    var checkOpt = false;
    if (nospace == "OK" && isNaN(receiptNo)) {checkOpt = true;}
    if (nospace == "notOK" && (isNaN(receiptNo) || receiptNo == "")) {checkOpt = true;}
    if (checkOpt) {
       alert("Please enter a receipt number given by a student in the receipt box.");
       formname.receipt.value = "";
       formname.receipt.focus();
       return false;
    }
    return true;
       }
   </script>
   GRADINGMENUJS
       &commonJSfunctions($request);
       my $result='<h3>&nbsp;<font color="#339933">Manual Grading/View Submission</font></h3>';
       my ($table,undef,$hdgrade) = &showResourceInfo($url,$probTitle);
       $result.=$table;
       my (undef,$sections) = &getclasslist('all','0');
       my $savedState = &savedState();
       my $saveCmd = ($$savedState{'saveCmd'} eq '' ? 'submission' : $$savedState{'saveCmd'});
       my $saveSec = ($$savedState{'saveSec'} eq '' ? 'all' : $$savedState{'saveSec'});
       my $saveSub = ($$savedState{'saveSub'} eq '' ? 'all' : $$savedState{'saveSub'});
       my $saveStatus = ($$savedState{'saveStatus'} eq '' ? 'Active' : $$savedState{'saveStatus'});
   
       $result.='<form action="/adm/grades" method="post" name="gradingMenu">'."\n".
    '<input type="hidden" name="symb"        value="'.$symb.'" />'."\n".
    '<input type="hidden" name="url"         value="'.$url.'" />'."\n".
    '<input type="hidden" name="handgrade"   value="'.$hdgrade.'" />'."\n".
    '<input type="hidden" name="probTitle"   value="'.$probTitle.'" />'."\n".
    '<input type="hidden" name="command"     value="" />'."\n".
    '<input type="hidden" name="saveState"   value="" />'."\n".
    '<input type="hidden" name="gradingMenu" value="1" />'."\n".
    '<input type="hidden" name="showgrading" value="yes" />'."\n";
   
       $result.='<table width="100%" border=0><tr><td bgcolor=#777777>'."\n".
    '<table width=100% border=0><tr bgcolor="#e6ffff"><td colspan="2">'."\n".
    '&nbsp;<b>Select a Grading/Viewing Option</b></td></tr>'."\n".
    '<tr bgcolor="#ffffe6" valign="top"><td>'."\n";
   
       $result.='<table width="100%" border=0>';
       $result.='<tr bgcolor="#ffffe6" valign="top"><td>'."\n".
    '&nbsp;'.&mt('Select Section').': <select name="section">'."\n";
       if (ref($sections)) {
    foreach (sort (@$sections)) {
       $result.='<option value="'.$_.'" '.
    ($saveSec eq $_ ? 'selected="on"':'').'>'.$_.'</option>'."\n";
    }
       }
       $result.= '<option value="all" '.($saveSec eq 'all' ? 'selected="on"' : ''). '>all</option></select> &nbsp; ';
   
       $result.=&mt('Student Status').':</b>'.&Apache::lonhtmlcommon::StatusOptions($saveStatus,undef,1,undef);
   
       $result.='</td></tr>';
   
       $result.='<tr bgcolor="#ffffe6"valign="top"><td>'.
    '<input type="radio" name="radioChoice" value="submission" '.
    ($saveCmd eq 'submission' ? 'checked' : '').'> '.'<b>'.&mt('Current Resource').':</b> '.&mt('For one or more students').
    ' <select name="submitonly">'.
    '<option value="yes" '.
    ($saveSub eq 'yes' ? 'selected="on"' : '').'>with submissions</option>'.
    '<option value="graded" '.
    ($saveSub eq 'graded' ? 'selected="on"' : '').'>with ungraded submissions</option>'.
    '<option value="incorrect" '.
    ($saveSub eq 'incorrect' ? 'selected="on"' : '').'>with incorrect submissions</option>'.
    '<option value="all" '.
    ($saveSub eq 'all' ? 'selected="on"' : '').'>with any status</option></select></td></tr>'."\n";
   
       $result.='<tr bgcolor="#ffffe6"valign="top"><td>'.
    '<input type="radio" name="radioChoice" value="viewgrades" '.
    ($saveCmd eq 'viewgrades' ? 'checked' : '').'> '.
    '<b>Current Resource:</b> For all students in selected section or course</td></tr>'."\n";
   
       $result.='<tr bgcolor="#ffffe6" valign="top"><td>'.
    '<input type="radio" name="radioChoice" value="pickStudentPage" '.
    ($saveCmd eq 'pickStudentPage' ? 'checked' : '').'> '.
    'The <b>complete</b> set/page/sequence: For one student</td></tr>'."\n";
   
       $result.='<tr bgcolor="#ffffe6"><td><br />'.
    '<input type="button" onClick="javascript:checkChoice(this.form,\'2\');" value="Next->" />'.
    '</td></tr></table>'."\n";
   
       $result.='</td><td valign="top">';
   
       $result.='<table width="100%" border=0>';
       $result.='<tr bgcolor="#ffffe6"><td>'.
    '<input type="button" onClick="javascript:checkChoice(this.form,\'3\',\'csvform\');" value="'.&mt('Upload').'" />'.
    ' '.&mt('scores from file').' </td></tr>'."\n";
   
       $result.='<tr bgcolor="#ffffe6"valign="top"><td colspan="2">'.
    '<input type="button" onClick="javascript:checkChoice(this.form,\'4\',\'scantron_selectphase\');'.
    '" value="'.&mt('Grade').'" /> scantron forms</td></tr>'."\n";
   
       if ((&Apache::lonnet::allowed('mgr',$env{'request.course.id'})) && ($symb)) {
    $result.='<tr bgcolor="#ffffe6"valign="top"><td>'.
       '<input type="button" onClick="javascript:checkChoice(this.form,\'5\',\'verify\');" value="'.&mt('Verify').'" />'.
       ' '.&mt('receipt').': '.
       &Apache::lonnet::recprefix($env{'request.course.id'}).
       '-<input type="text" name="receipt" size="4" onChange="javascript:checkReceiptNo(this.form,\'OK\')">'.
       '</td></tr>'."\n";
       } 
       $result.='<tr bgcolor="#ffffe6"valign="top"><td colspan="2">'.
    '<input type="button" onClick="javascript:this.form.action=\'/adm/helper/resettimes.helper\';this.form.submit();'.
    '" value="'.&mt('Manage').'" /> access times.</td></tr>'."\n";
   
       $result.='</form></td></tr></table>'."\n".
    '</td></tr></table>'."\n".
    '</td></tr></table>'."\n";
       return $result;
 }  }
   
 sub handler {  sub handler {
     my $request=$_[0];      my $request=$_[0];
       
     if ($ENV{'browser.mathml'}) {      undef(%perm);
  $request->content_type('text/xml');      if ($env{'browser.mathml'}) {
    &Apache::loncommon::content_type($request,'text/xml');
     } else {      } else {
  $request->content_type('text/html');   &Apache::loncommon::content_type($request,'text/html');
     }      }
     $request->send_http_header;      $request->send_http_header;
     return OK if $request->header_only;      return '' if $request->header_only;
     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'});      &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'});
     my $url=$ENV{'form.url'};      my $url=$env{'form.url'};
     my $symb=$ENV{'form.symb'};      my $symb=$env{'form.symb'};
     my $command=$ENV{'form.command'};      my @commands=&Apache::loncommon::get_env_multiple('form.command');
       my $command=$commands[0];
       if ($#commands > 0) {
    &Apache::lonnet::logthis("grades got multiple commands ".join(':',@commands));
       }
     if (!$url) {      if (!$url) {
  my ($temp1,$temp2);   my ($temp1,$temp2);
  ($temp1,$temp2,$ENV{'form.url'})=split(/___/,$symb);   ($temp1,$temp2,$env{'form.url'})=&Apache::lonnet::decode_symb($symb);
  $url = $ENV{'form.url'};   $url = $env{'form.url'};
     }      }
     &send_header($request);      &send_header($request);
     if ($url eq '' && $symb eq '') {      if ($url eq '' && $symb eq '' && $command eq '') {
  if ($ENV{'user.adv'}) {   if ($env{'user.adv'}) {
     if (($ENV{'form.codeone'}) && ($ENV{'form.codetwo'}) &&      if (($env{'form.codeone'}) && ($env{'form.codetwo'}) &&
  ($ENV{'form.codethree'})) {   ($env{'form.codethree'})) {
  my $token=$ENV{'form.codeone'}.'*'.$ENV{'form.codetwo'}.'*'.   my $token=$env{'form.codeone'}.'*'.$env{'form.codetwo'}.'*'.
     $ENV{'form.codethree'};      $env{'form.codethree'};
  my ($tsymb,$tuname,$tudom,$tcrsid)=   my ($tsymb,$tuname,$tudom,$tcrsid)=
     &Apache::lonnet::checkin($token);      &Apache::lonnet::checkin($token);
  if ($tsymb) {   if ($tsymb) {
     my ($map,$id,$url)=split(/\_\_\_/,$tsymb);      my ($map,$id,$url)=&Apache::lonnet::decode_symb($tsymb);
     if (&Apache::lonnet::allowed('mgr',$tcrsid)) {      if (&Apache::lonnet::allowed('mgr',$tcrsid)) {
  $request->print(   $request->print(&Apache::lonnet::ssi_body('/res/'.$url,
  &Apache::lonnet::ssi('/res/'.$url,    ('grade_username' => $tuname,
      ('grade_username' => $tuname,     'grade_domain' => $tudom,
       'grade_domain' => $tudom,     'grade_courseid' => $tcrsid,
       'grade_courseid' => $tcrsid,     'grade_symb' => $tsymb)));
       'grade_symb' => $tsymb)));  
     } else {      } else {
  $request->print('<h1>Not authorized: '.$token.'</h1>');   $request->print('<h3>Not authorized: '.$token.'</h3>');
     }                 }
  } else {   } else {
     $request->print('<h1>Not a valid DocID: '.$token.'</h1>');      $request->print('<h3>Not a valid DocID: '.$token.'</h3>');
  }   }
     } else {      } else {
  $request->print(&Apache::lonxml::tokeninputfield());   $request->print(&Apache::lonxml::tokeninputfield());
     }      }
  }   }
     } else {      } else {
  #&Apache::lonhomework::showhashsubset(\%ENV,'^form');   if (!($perm{'vgr'}=&Apache::lonnet::allowed('vgr',$env{'request.course.id'}))) {
  $Apache::grades::viewgrades=&Apache::lonnet::allowed('vgr',$ENV{'request.course.id'});      if ($perm{'vgr'}=&Apache::lonnet::allowed('vgr',$env{'request.course.id'}.'/'.$env{'request.course.sec'})) {
  if ($command eq 'submission') {   $perm{'vgr_section'}=$env{'request.course.sec'};
     &listStudents($request) if ($ENV{'form.student'} eq '');      } else {
     &submission($request,0,0) if ($ENV{'form.student'} ne '');   delete($perm{'vgr'});
  } elsif ($command eq 'processGroup') {      }
    }
    if (!($perm{'mgr'}=&Apache::lonnet::allowed('mgr',$env{'request.course.id'}))) {
       if ($perm{'mgr'}=&Apache::lonnet::allowed('mgr',$env{'request.course.id'}.'/'.$env{'request.course.sec'})) {
    $perm{'mgr_section'}=$env{'request.course.sec'};
       } else {
    delete($perm{'mgr'});
       }
    }
    if ($command eq 'submission' && $perm{'vgr'}) {
       ($env{'form.student'} eq '' ? &listStudents($request) : &submission($request,0,0));
    } elsif ($command eq 'pickStudentPage' && $perm{'vgr'}) {
       &pickStudentPage($request);
    } elsif ($command eq 'displayPage' && $perm{'vgr'}) {
       &displayPage($request);
    } elsif ($command eq 'gradeByPage' && $perm{'mgr'}) {
       &updateGradeByPage($request);
    } elsif ($command eq 'processGroup' && $perm{'vgr'}) {
     &processGroup($request);      &processGroup($request);
  } elsif ($command eq 'gradingmenu') {   } elsif ($command eq 'gradingmenu' && $perm{'vgr'}) {
     $request->print(&gradingmenu($request));      $request->print(&gradingmenu($request));
  } elsif ($command eq 'viewgrades') {   } elsif ($command eq 'viewgrades' && $perm{'vgr'}) {
     $request->print(&viewgrades($request));      $request->print(&viewgrades($request));
  } elsif ($command eq 'handgrade') {   } elsif ($command eq 'handgrade' && $perm{'mgr'}) {
     $request->print(&processHandGrade($request));      $request->print(&processHandGrade($request));
  } elsif ($command eq 'editgrades') {   } elsif ($command eq 'editgrades' && $perm{'mgr'}) {
     $request->print(&editgrades($request));      $request->print(&editgrades($request));
  } elsif ($command eq 'verify') {   } elsif ($command eq 'verify' && $perm{'vgr'}) {
     $request->print(&verifyreceipt($request));      $request->print(&verifyreceipt($request));
  } elsif ($command eq 'csvupload') {   } elsif ($command eq 'csvform' && $perm{'mgr'}) {
       $request->print(&upcsvScores_form($request));
    } elsif ($command eq 'csvupload' && $perm{'mgr'}) {
     $request->print(&csvupload($request));      $request->print(&csvupload($request));
  } elsif ($command eq 'viewclasslist') {   } elsif ($command eq 'csvuploadmap' && $perm{'mgr'} ) {
     $request->print(&viewclasslist($request));  
  } elsif ($command eq 'csvuploadmap') {  
     $request->print(&csvuploadmap($request));      $request->print(&csvuploadmap($request));
 #    } elsif ($command eq 'receiptInput') {   } elsif ($command eq 'csvuploadoptions' && $perm{'mgr'}) {
 #      &receiptInput($request);      if ($env{'form.associate'} ne 'Reverse Association') {
  } elsif ($command eq 'csvuploadassign') {   $request->print(&csvuploadoptions($request));
     if ($ENV{'form.associate'} ne 'Reverse Association') {  
  $request->print(&csvuploadassign($request));  
     } else {      } else {
  if ( $ENV{'form.upfile_associate'} ne 'reverse' ) {   if ( $env{'form.upfile_associate'} ne 'reverse' ) {
     $ENV{'form.upfile_associate'} = 'reverse';      $env{'form.upfile_associate'} = 'reverse';
  } else {   } else {
     $ENV{'form.upfile_associate'} = 'forward';      $env{'form.upfile_associate'} = 'forward';
  }   }
  $request->print(&csvuploadmap($request));   $request->print(&csvuploadmap($request));
     }      }
  } else {   } elsif ($command eq 'csvuploadassign' && $perm{'mgr'} ) {
     $request->print("Unknown action: $command:");      $request->print(&csvuploadassign($request));
    } elsif ($command eq 'scantron_selectphase' && $perm{'mgr'}) {
       $request->print(&scantron_selectphase($request));
     } elsif ($command eq 'scantron_warning' && $perm{'mgr'}) {
        $request->print(&scantron_do_warning($request));
    } elsif ($command eq 'scantron_validate' && $perm{'mgr'}) {
       $request->print(&scantron_validate_file($request));
    } elsif ($command eq 'scantron_process' && $perm{'mgr'}) {
       $request->print(&scantron_process_students($request));
     } elsif ($command eq 'scantronupload' && 
     (&Apache::lonnet::allowed('usc',$env{'request.role.domain'})||
     &Apache::lonnet::allowed('usc',$env{'request.course.id'}))) {
        $request->print(&scantron_upload_scantron_data($request)); 
     } elsif ($command eq 'scantronupload_save' &&
     (&Apache::lonnet::allowed('usc',$env{'request.role.domain'})||
     &Apache::lonnet::allowed('usc',$env{'request.course.id'}))) {
        $request->print(&scantron_upload_scantron_data_save($request));
     } elsif ($command eq 'scantron_download' &&
    &Apache::lonnet::allowed('usc',$env{'request.course.id'})) {
        $request->print(&scantron_download_scantron_data($request));
    } elsif ($command) {
       $request->print("Access Denied ($command)");
  }   }
     }      }
     &send_footer($request);      &send_footer($request);
     return OK;      return '';
   }
   
   sub send_header {
       my ($request)= @_;
       $request->print(&Apache::lontexconvert::header());
   #  $request->print("
   #<script>
   #remotewindow=open('','homeworkremote');
   #remotewindow.close();
   #</script>"); 
       $request->print(&Apache::loncommon::bodytag('Grading'));
       $request->rflush();
   }
   
   sub send_footer {
       my ($request)= @_;
       $request->print('</body></html>');
 }  }
   
 1;  1;
Removed from v.1.42  
changed lines
  Added in v.1.273

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