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Diff for /loncom/homework/grades.pm between versions 1.37 and 1.57

version 1.37, 2002/07/08 21:18:54 version 1.57, 2002/10/17 14:35:34
Line 30 Line 30
 # 7/26 H.K. Ng  # 7/26 H.K. Ng
 # 8/20 Gerd Kortemeyer  # 8/20 Gerd Kortemeyer
 # Year 2002  # Year 2002
 # June, July 2002 H.K. Ng  # June-August H.K. Ng
 #  #
   
 package Apache::grades;  package Apache::grades;
Line 40  use Apache::lonxml; Line 40  use Apache::lonxml;
 use Apache::lonnet;  use Apache::lonnet;
 use Apache::loncommon;  use Apache::loncommon;
 use Apache::lonhomework;  use Apache::lonhomework;
   use Apache::loncoursedata;
   use Apache::lonmsg qw(:user_normal_msg);
 use Apache::Constants qw(:common);  use Apache::Constants qw(:common);
   
 sub moreinfo {  # ----- These first few routines are general use routines.-----
   my ($request,$reason) = @_;  #
   $request->print("Unable to process request: $reason");  # --- Retrieve the parts that matches stores_\d+ from the metadata file.---
   if ( $Apache::grades::viewgrades eq 'F' ) {  sub getpartlist {
     $request->print('<form action="/adm/grades" method="post">'."\n");      my ($url) = @_;
     if ($ENV{'form.url'}) {      my @parts =();
       $request->print('<input type="hidden" name="url" value="'.$ENV{'form.url'}.'" />'."\n");      my (@metakeys) = split(/,/,&Apache::lonnet::metadata($url,'keys'));
     }      foreach my $key (@metakeys) {
     if ($ENV{'form.symb'}) {   if ( $key =~ m/stores_(\w+)_.*/) {
       $request->print('<input type="hidden" name="symb" value="'.$ENV{'form.symb'}.'" />'."\n");      push(@parts,$key);
     }   }
 #    $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 {  
     my $request=shift;  
     my $courseid=$ENV{'request.course.id'};  
 #    my $cdom=$ENV{"course.$courseid.domain"};  
 #    my $cnum=$ENV{"course.$courseid.num"};  
     my $receipt=unpack("%32C*",$Apache::lonnet::perlvar{'lonHostID'}).'-'.  
                 $ENV{'form.receipt'};  
     $receipt=~s/[^\-\d]//g;  
     my $symb=$ENV{'form.symb'};  
     unless ($symb) {  
  $symb=&Apache::lonnet::symbread($ENV{'form.url'});  
     }  
     if ((&Apache::lonnet::allowed('mgr',$courseid)) && ($symb)) {  
         $request->print('<h1>Verifying Submission Receipt '.$receipt.'</h1>');  
         my $matches=0;  
         my ($classlist) = &getclasslist('all','0');  
         foreach my $student ( sort(@{ $$classlist{'all'} }) ) {  
             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 @parts;
 }  }
   
 sub student_gradeStatus {  # --- Get the symbolic name of a problem and the url
   my ($url,$udom,$uname) = @_;  sub get_symb_and_url {
   my $symb=($ENV{'form.symb'} ne '' ? $ENV{'form.symb'} : (&Apache::lonnet::symbread($url)));      my ($request) = @_;
   my %record= &Apache::lonnet::restore($symb,$ENV{'request.course.id'},$udom,$uname);      (my $url=$ENV{'form.url'}) =~ s-^http://($ENV{'SERVER_NAME'}|$ENV{'HTTP_HOST'})--;
   foreach my $part (&getpartlist($url)) {      my $symb=($ENV{'form.symb'} ne '' ? $ENV{'form.symb'} : (&Apache::lonnet::symbread($url)));
     my ($temp,$part,$type)=split(/_/,$part);      if ($symb eq '') { $request->print("Unable to handle ambiguous references:$url:."); return ''; }
     if ($type eq 'solved') {      return ($symb,$url);
       my ($status,$foo)=split(/_/,$record{"resource.$part.$type"},2);  
       $status = 'partial' if ($foo =~ /^partially/);  
       $status = 'nothing' if ($status eq '');  
       return $type,$status;  
     }  
   }  
   return '';  
 }  }
   
   # --- Retrieve the fullname for a user. Return lastname, first middle ---
   # --- Generation is attached next to the lastname if it exists. ---
 sub get_fullname {  sub get_fullname {
     my ($sname,$sdom) = @_;      my ($uname,$udom) = @_;
     my %name=&Apache::lonnet::get('environment', ['lastname','generation',      my %name=&Apache::lonnet::get('environment', ['lastname','generation',
   'firstname','middlename'],    'firstname','middlename'],
   $sdom,$sname);                                    $udom,$uname);
     my $fullname;      my $fullname;
     my ($tmp) = keys(%name);      my ($tmp) = keys(%name);
     if ($tmp !~ /^(con_lost|error|no_such_host)/i) {      if ($tmp !~ /^(con_lost|error|no_such_host)/i) {
  $fullname=$name{'lastname'}.$name{'generation'};          $fullname = &Apache::loncoursedata::ProcessFullName
  if ($fullname =~ /[^\s]+/) { $fullname.=', '; }              (@name{qw/lastname generation firstname middlename/});
  $fullname.=$name{'firstname'}.' '.$name{'middlename'};      } else {
           &Apache::lonnet::logthis('grades.pm: no name data for '.$uname.
                                    '@'.$udom.':'.$tmp);
     }      }
     return $fullname;      return $fullname;
 }  }
   
 sub listStudents {  #--- Get the partlist and the response type for a given problem. ---
   my ($request) = shift;  #--- Indicate if a response type is coded handgraded or not. ---
   my $cdom      =$ENV{"course.$ENV{'request.course.id'}.domain"};  sub response_type {
   my $cnum      =$ENV{"course.$ENV{'request.course.id'}.num"};      my ($url) = shift;
   my $getsec    =$ENV{'form.section'};      my $allkeys = &Apache::lonnet::metadata($url,'keys');
   my $submitonly=$ENV{'form.submitonly'};      my %seen = ();
       my (@partlist,%handgrade);
   $request->print(<<ENDTABLEST);      foreach (split(/,/,&Apache::lonnet::metadata($url,'packages'))) {
 <h2><font color="#339933">&nbsp;View Submissions for a Student or a Group of Students</font></h2>   if (/^\w+response_\w+.*/) {
 &nbsp;<font size=+1><b>Resource:</b> $ENV{'form.url'}<br /><br />      my ($responsetype,$part) = split(/_/,$_,2);
 <form action="/adm/grades" method="post">&nbsp;<b>View Options</b></font><br />      my ($partid,$respid) = split(/_/,$part);
 &nbsp;<b>View Problem: </b><input type="radio" name="vProb" value="no" checked> no       $handgrade{$part} = $responsetype.':'.($allkeys =~ /parameter_$part\_handgrade/ ? 'yes' : 'no');
 <input type="radio" name="vProb" value="yes"> yes <br />      next if ($seen{$partid} > 0);
 &nbsp;<b>Submissions: </b>      $seen{$partid}++;
 <input type="radio" name="lastSub" value="lastonly" checked> last sub only      push @partlist,$partid;
 <input type="radio" name="lastSub" value="last"> last sub & parts info   }
 <input type="radio" name="lastSub" value="all"> all details      }
 <input type="hidden" name="section" value="$getsec">      return \@partlist,\%handgrade;
 <input type="hidden" name="submitonly" value="$submitonly">  }
 <input type="hidden" name="response" value="$ENV{'form.response'}">  
 <input type="hidden" name="handgrade" value="$ENV{'form.handgrade'}">  
 <table border="0"><tr><td bgcolor="#777777">  
 <table border="0"><tr bgcolor="#e6ffff">  
 <td><b>&nbsp;Select&nbsp;</b></td><td><b>&nbsp;Username&nbsp;</b></td>  
 <td><b>&nbsp;Fullname&nbsp;</b></td><td><b>&nbsp;Domain&nbsp;</b></td>  
 <td><b>&nbsp;Grade Status&nbsp;</b></td></tr>  
 ENDTABLEST  
   if ($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="processGroup" />'."\n");  
   
   my ($classlist) = &getclasslist($getsec,'0');  
   foreach my $student ( sort(@{ $$classlist{$getsec} }) ) {  
       my ($sname,$sdom) = split(/:/,$student);  
       my ($type,$status) = &student_gradeStatus($ENV{'form.url'},$cdom,$sname);  
       next if ($status eq 'nothing' && $submitonly eq 'yes');  
   
       my $fullname = &get_fullname($sname,$sdom);  
       if ( $Apache::grades::viewgrades eq 'F' ) {  
   $request->print("\n".'<tr bgcolor="#ffffe6">'.  
   '<td align="center"><input type=checkbox name="stuinfo" value="'.  
   $student.':'.$fullname.'"></td>'."\n".  
   '<td>&nbsp;'.$sname.'&nbsp;</td>'."\n".  
   '<td>&nbsp;'.$fullname.'&nbsp;</td>'."\n".  
   '<td align="middle">&nbsp;'.$sdom.'&nbsp;</td>'."\n");  
   $request->print('<td align="middle">&nbsp;'.$status.'&nbsp;</td>'."\n");  
   
   $request->print('</tr>');  #--- Dumps the class list with usernames,list of sections,
       }  #--- section, ids and fullnames for each user.
   }  sub getclasslist {
   $request->print('</table></td></tr></table>');      my ($getsec,$hideexpired) = @_;
   $request->print('<input type="submit" name="submit" value="View/Grade" /><form />');      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 (keys(%$classlist)) {
           # the following undefs are for 'domain', and 'username' respectively.
    my (undef,undef,$end,$start,$id,$section,$fullname,$status)=
               @{$classlist->{$_}};
    # still a student?
    if (($hideexpired) && ($status ne 'Active')) {
               delete ($classlist->{$_});
               next;
           }
    $section = ($section ne '' ? $section : 'no');
    if ($getsec eq 'all' || $getsec eq $section) {
               $sections{$section}++;
               $fullnames{$_}=$fullname;
           } else {
               delete($classlist->{$_});
           }
       }
       my %seen = ();
       my @sections = sort(keys(%sections));
       return ($classlist,\@sections,\%fullnames);
 }  }
   
 sub processGroup {  #find user domain
   my ($request)  = shift;  sub finduser {
   my $ctr        = 0;      my ($name) = @_;
   my @stuchecked = (ref($ENV{'form.stuinfo'}) ? @{$ENV{'form.stuinfo'}}      my $domain = '';
                            : ($ENV{'form.stuinfo'}));      if ( $Apache::grades::viewgrades eq 'F' ) {
   my $total      = scalar(@stuchecked)-1;   my %classlist=&Apache::lonnet::dump('classlist',
   if ($stuchecked[0] eq '') {      $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
       &userError($request,'No student was selected for viewing/grading.');      $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
       return;   my (@fields) = grep /^$name:/, keys %classlist;
   }   ($name, $domain) = split(/:/,$fields[0]);
   foreach (@stuchecked) {   return ($name,$domain);
       my ($sname,$sdom,$fullname) = split(/:/);      } else {
       $ENV{'form.student'} = $sname;   return ($ENV{'user.name'},$ENV{'user.domain'});
       $ENV{'form.fullname'} = $fullname;      }
       &submission($request,$ctr,$total);  
       $ctr++;  
   }  
   return 'The End';  
 }  }
   
 sub userError {  #--- Prompts a user to enter a username.
     my ($request, $reason, $step) = @_;  sub moreinfo {
     $request->print('<h3><font color="red">LON-CAPA User Error</font></h3><br />'."\n");      my ($request,$reason) = @_;
     $request->print('<b>Reason: </b>'.$reason.'<br /><br />'."\n");      $request->print("Unable to process request: $reason");
     $request->print('<b>Step: </b>'.($step ne '' ? $step : 'Use your browser back button to correct')      if ( $Apache::grades::viewgrades eq 'F' ) {
     .'<br /><br />'."\n");   $request->print('<form action="/adm/grades" method="post">'."\n");
    if ($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");
    }
    $request->print('<input type="hidden" name="command" value="'.$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 '';      return '';
 }  }
   
 #FIXME - needs to handle multiple matches  #--- Retrieve the grade status of a student for all the parts
 sub finduser {  sub student_gradeStatus {
   my ($name) = @_;      my ($url,$symb,$udom,$uname,$partlist) = @_;
   my $domain = '';      my %record     = &Apache::lonnet::restore($symb,$ENV{'request.course.id'},$udom,$uname);
   if ( $Apache::grades::viewgrades eq 'F' ) {      my %partstatus = ();
     my ($classlist) = &getclasslist('all','0');      foreach (@$partlist) {
     foreach ( sort(@{ $$classlist{'all'} }) ) {   my ($status,$foo)    = split(/_/,$record{"resource.$_.solved"},2);
       my ($posname,$posdomain) = split(/:/);   $status              = 'nothing' if ($status eq '');
       if ($posname =~ $name) { $name=$posname; $domain=$posdomain; last; }   $partstatus{$_}      = $status;
     }   my $subkey           = "resource.$_.submitted_by";
     return ($name,$domain);   $partstatus{$subkey} = $record{$subkey} if ($record{$subkey} ne '');
   } else {      }
     return ($ENV{'user.name'},$ENV{'user.domain'});      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="command" value="submission" />'."\n".
    '<input type="hidden" name="student" value="" />'."\n".
    '<input type="hidden" name="userdom" value="" />'."\n".
    '</form>'."\n";
       return $jscript;
 }  }
   
 sub getclasslist {  #------------------ End of general use routines --------------------
   my ($getsec,$hideexpired) = @_;  #-------------------------------------------------------------------
   my ($coursedomain,$coursenum) = split(/_/,$ENV{'request.course.id'});  
   my %classlist=&Apache::lonnet::dump('classlist',$coursedomain,$coursenum);  
   my $now = time;  
   my (@holdsec,@sections);  
   foreach my $student (keys(%classlist)) {  
     my ($end,$start)=split(/:/,$classlist{$student});  
     # still a student?  
     if (($hideexpired) && ($end) && ($end < $now)) {  
       next;  
     }  
     my ($unam,$udom) = split(/:/,$student,2);  
     my $section = &Apache::lonnet::usection($udom,$unam,$ENV{'request.course.id'});  
     $section = ($section ne '-1' ? $section : 'no');  
     push @holdsec,$section;  
     push (@{ $classlist{$getsec} }, $student) if ($getsec eq 'all' || $getsec eq $section);  
   }  
   my %seen = ();  
   foreach my $item (@holdsec) {  
       push (@sections, $item) unless $seen{$item}++;  
   }  
   return (\%classlist,\@sections);  
 }  
   
 sub getpartlist {  #------------------------------------ Receipt Verification Routines
   my ($url) = @_;  #
   my @parts =();  #--- Check whether a receipt number is valid.---
   my (@metakeys) = split(/,/,&Apache::lonnet::metadata($url,'keys'));  sub verifyreceipt {
   foreach my $key (@metakeys) {      my $request  = shift;
     if ( $key =~ m/stores_([0-9]+)_.*/) {  
       push(@parts,$key);      my $courseid = $ENV{'request.course.id'};
       my $receipt  = unpack("%32C*",$Apache::lonnet::perlvar{'lonHostID'}).'-'.
    $ENV{'form.receipt'};
       $receipt     =~ s/[^\-\d]//g;
       my $url      = $ENV{'form.url'};
       my $symb     = $ENV{'form.symb'};
       unless ($symb) {
    $symb    = &Apache::lonnet::symbread($url);
     }      }
   }  
   return @parts;  
 }  
   
 sub viewstudentgrade {      my $title.='<h3><font color="#339933">Verifying Submission Receipt '.
   my ($url,$symb,$courseid,$student,@parts) = @_;   $receipt.'</h3></font>'."\n".
   my $result ='';   '<font size=+1><b>Resource: </b>'.$ENV{'form.url'}.'</font><br><br>'."\n";
   my $cellclr = '"#ffffdd"';  
   my ($username,$domain) = split(/:/,$student);      my ($string,$contents,$matches) = ('','',0);
       my (undef,undef,$fullname) = &getclasslist('all','0');
   my $fullname = &get_fullname($username,$domain);  
   my %record=&Apache::lonnet::restore($symb,$courseid,$domain,$username);      foreach (sort {lc($$fullname{$a}) cmp lc($$fullname{$b}) } keys %$fullname) {
    my ($uname,$udom)=split(/\:/);
   $result.="<tr bgcolor=$cellclr><td>$username</td><td>$fullname</td><td align=\"middle\">$domain</td>\n";   if ($receipt eq 
   foreach my $part (@parts) {      &Apache::lonnet::ireceipt($uname,$udom,$courseid,$symb)) {
     my ($temp,$part,$type)=split(/_/,$part);      $contents.='<tr bgcolor="#ffffe6"><td>&nbsp;'."\n".
     my $score=$record{"resource.$part.$type"};   '<a href="javascript:viewOneStudent(\''.$uname.'\',\''.$udom.
     if ($type eq 'awarded' || $type eq 'tries') {   '\')"; TARGET=_self>'.$$fullname{$_}.'</a>&nbsp;</td>'."\n".
       $result.='<td align="middle"><input type="text" name="GRADE.'.$student.'.'.$part.'.'.$type.   '<td>&nbsp;'.$uname.'&nbsp;</td>'.
   '" value="'.$score.'" size="4" /></td>'."\n";   '<td>&nbsp;'.$udom.'&nbsp;</td></tr>'."\n";
     } elsif ($type eq 'solved') {      
       my ($status,$foo)=split(/_/,$score,2);      $matches++;
       $result.="<td align=\"middle\"><select name=\"GRADE.$student.$part.$type\">\n";   }
       my $optsel = '<option>correct</option><option>incorrect</option><option>excused</option>'.  
   '<option>ungraded</option><option>partial</option><option>nothing</option>'."\n";  
       $status = 'nothing' if ($status eq '');  
       $optsel =~ s/<option>$status/<option selected="on">$status/;  
       $result.=$optsel;  
       $result.="</select></td>\n";  
     }      }
   }      if ($matches == 0) {
   $result.='<td></td></tr>';   $string = $title.'No match found for the above receipt.';
   return $result;      } 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></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 {
       my ($request) = shift;
   
 #FIXME need to look at the metadata <stores> spec on what type of data to accept and provide an      my ($symb,$url) = &get_symb_and_url();
 #interface based on that, also do that to above function.      my $cdom      = $ENV{"course.$ENV{'request.course.id'}.domain"};
 sub setstudentgrade {      my $cnum      = $ENV{"course.$ENV{'request.course.id'}.num"};
   my ($url,$symb,$courseid,$student,@parts) = @_;      my $getsec    = $ENV{'form.section'} eq '' ? 'all' : $ENV{'form.section'};
   print "set student grade parts=@parts<br>";      my $submitonly= $ENV{'form.submitonly'} eq '' ? 'all' : $ENV{'form.submitonly'};
   my $result ='';  
   my ($stuname,$domain) = split(/:/,$student);      my $result;
   my %record=&Apache::lonnet::restore($symb,$courseid,$domain,$stuname);      my ($partlist,$handgrade) = &response_type($url);
   my %newrecord;      for (sort keys(%$handgrade)) {
    my ($responsetype,$handgrade)=split(/:/,$$handgrade{$_});
   foreach my $part (@parts) {   $ENV{'form.handgrade'} = 'yes' if ($handgrade eq 'yes');
     my ($temp,$part,$type)=split(/_/,$part);   $result.='<tr><td><b>Part </b>'.(split(/_/))[0].'</td>'.
     my $oldscore=$record{"resource.$part.$type"};      '<td><b>Type: </b>'.$responsetype.'</td>'.
     my $newscore=$ENV{"form.GRADE.$student.$part.$type"};      '<td><b>Handgrade: </b>'.$handgrade.'</font></td></tr>';
     print "old=$oldscore:new=$newscore:<br>";      }
     if ($type eq 'solved') {      $result.='</table>';
       my $update=0;  
       if ($newscore eq 'nothing' ) {      my $viewgrade;
  if ($oldscore ne '') {      if ($ENV{'form.handgrade'} eq 'yes') {
   $update=1;   $viewgrade = 'View/Grade';
   $newscore = '';  
  }  
       } elsif ($oldscore !~ m/^$newscore/) {  
  $update=1;  
  $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')  { $newscore = 'ungraded_attempted'; }  
  if ($newscore eq 'partial')   { $newscore = 'correct_partially_by_override'; }  
       } else {  
  #$result.="$stuname:$part:$type:unchanged  $oldscore to $newscore:<br />\n";  
       }  
       if ($update) { $newrecord{"resource.$part.$type"}=$newscore; }  
     } else {      } else {
       if ($oldscore ne $newscore) {   $viewgrade = 'View';
  $newrecord{"resource.$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";  
       }  
     }      }
   }  
   if ( scalar(keys(%newrecord)) > 0 ) {  
     $newrecord{'resource.regrader'}="$ENV{'user.name'}:$ENV{'user.domain'}";  
 #    &Apache::lonnet::cstore(\%newrecord,$symb,$courseid,$domain,$stuname);  
   
     $result.="Stored away ".scalar(keys(%newrecord))." elements.<br />\n";      $result='<h3><font color="#339933">&nbsp;'.
    $viewgrade.
       ' Submissions for a Student or a Group of Students</font></h3>'.
    '<table border="0"><tr><td colspan=3><font size=+1>'.
       '<b>Resource: </b>'.$url.'</font></td></tr>'.$result;
   
       $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 $viewgrade button.");
          return false;
       }
       document.gradesub.submit();
   }    }
   return $result;  </script>
   LISTJAVASCRIPT
   
       $request->print($result);
   
       my $checkhdgrade = $ENV{'form.handgrade'} eq 'yes' ? 'checked' : '';
       my $checklastsub = $ENV{'form.handgrade'} eq 'yes' ? '' : 'checked';
   
       my $gradeTable='<form action="/adm/grades" method="post" name="gradesub">'."\n".
    '&nbsp;<b>View Problem: </b><input type="radio" name="vProb" value="no" > no '."\n".
    '<input type="radio" name="vProb" value="yes" checked > yes <br />'."\n".
    '&nbsp;<b>Submissions: </b>'."\n";
       if ($ENV{'form.handgrade'} eq 'yes') {
    $gradeTable.='<input type="radio" name="lastSub" value="hdgrade" '.$checkhdgrade.' /> handgrade only'."\n";
       }
       $gradeTable.='<input type="radio" name="lastSub" value="lastonly" '.$checklastsub.' /> last sub only'."\n".
    '<input type="radio" name="lastSub" value="last" /> last sub & parts info'."\n".
    '<input type="radio" name="lastSub" value="all" /> all details'."\n".
    '<input type="hidden" name="section"     value="'.$getsec.'" />'."\n".
    '<input type="hidden" name="submitonly"  value="'.$submitonly.'" />'."\n".
    '<input type="hidden" name="response"    value="'.$ENV{'form.response'}.'" />'."\n".
    '<input type="hidden" name="handgrade"   value="'.$ENV{'form.handgrade'}.'" /><br />'."\n".
    '<input type="hidden" name="showgrading" value="'.$ENV{'form.showgrading'}.'" /><br />'."\n".
    '<input type="hidden" name="url"  value="'.$url.'" />'."\n".
    '<input type="hidden" name="symb" value="'.$symb.'" />'."\n".
    'To '.lc($viewgrade).' a submission, click on the check box next to the student\'s name. Then '."\n".
    'click on the '.$viewgrade.' button. To view the submissions for a group of students, click'."\n".
    ' on the check boxes for the group of students.<br />'."\n".
    '<input type="hidden" name="command" value="processGroup" />'."\n".
    '<input type="button" '."\n".
    'onClick="javascript:checkSelect(this.form.stuinfo);" '."\n".
    'value="'.$viewgrade.'" />'."\n";
    
       my (undef,undef,$fullname) = &getclasslist($getsec,'0');
       
       $gradeTable.='<table border="0"><tr><td bgcolor="#777777">'.
    '<table border="0"><tr bgcolor="#e6ffff">'.
    '<td><b>&nbsp;Select&nbsp;</b></td><td><b>&nbsp;Fullname&nbsp;</b></td>'.
    '<td><b>&nbsp;Username&nbsp;</b></td><td><b>&nbsp;Domain&nbsp;</b></td>';
       foreach (sort(@$partlist)) {
    $gradeTable.='<td><b>&nbsp;Part '.(split(/_/))[0].' Status&nbsp;</b></td>';
       }
       $gradeTable.='</tr>'."\n";
   
       my $ctr = 0;
       foreach my $student (sort {lc($$fullname{$a}) cmp lc($$fullname{$b}) } keys %$fullname) {
    my ($uname,$udom) = split(/:/,$student);
    my (%status) =&student_gradeStatus($url,$symb,$udom,$uname,$partlist);
    my $statusflg = '';
    foreach (keys(%status)) {
       $statusflg = 1 if ($status{$_} ne 'nothing');
       my ($foo,$partid,$foo1) = split(/\./,$_);
       if ($status{'resource.'.$partid.'.submitted_by'} ne '') {
    $statusflg = '';
    $gradeTable.='<input type="hidden" name="'.
       $student.':submitted_by" value="'.
       $status{'resource.'.$partid.'.submitted_by'}.'" />';
       }
    }
    next if ($statusflg eq '' && $submitonly eq 'yes');
   
    $ctr++;
    if ( $Apache::grades::viewgrades eq 'F' ) {
       $gradeTable.='<tr bgcolor="#ffffe6">'.
    '<td align="center"><input type=checkbox name="stuinfo" value="'.
    $student.':'.$$fullname{$student}.'"></td>'."\n".
    '<td>&nbsp;'.$$fullname{$student}.'&nbsp;</td>'."\n".
    '<td>&nbsp;'.$uname.'&nbsp;</td>'."\n".
    '<td align="middle">&nbsp;'.$udom.'&nbsp;</td>'."\n";
       
       foreach (sort keys(%status)) {
    next if (/^resource.*?submitted_by$/);
    $gradeTable.='<td align="middle">&nbsp;'.$status{$_}.'&nbsp;</td>'."\n";
       }
       $gradeTable.='</tr>'."\n";
    }
       }
       $gradeTable.='</table></td></tr></table>'.
    '<input type="button" '.
    'onClick="javascript:checkSelect(this.form.stuinfo);" '.
    'value="'.$viewgrade.'" /></form>'."\n";
       if ($ctr == 0) {
    $gradeTable='<br />&nbsp;<font color="red">'.
       'No submission found for this resource.</font><br />';
       } elsif ($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
 # --------------------------- show submissions of a student, option to grade --------  #     Displays the submissions for one student or a group of students
 sub submission {  sub processGroup {
   my ($request,$counter,$total) = @_;      my ($request)  = shift;
       my $ctr        = 0;
       my @stuchecked = (ref($ENV{'form.stuinfo'}) ? @{$ENV{'form.stuinfo'}}
         : ($ENV{'form.stuinfo'}));
       my $total      = scalar(@stuchecked)-1;
   
       foreach (@stuchecked) {
    my ($uname,$udom,$fullname) = split(/:/);
    $ENV{'form.student'}        = $uname;
    $ENV{'form.userdom'}        = $udom;
    $ENV{'form.fullname'}       = $fullname;
    &submission($request,$ctr,$total);
    $ctr++;
       }
       return '';
   }
   
   if ($counter == 0) {  #------------------------------------------------------------------------------------
       $request->print(<<SUBJAVASCRIPT);  #
   #-------------------------- Next few routines handles grading by student, essentially
   #                           handles essay response type problem/part
   #
   #--- Javascript to handle the submission page functionality ---
   sub sub_page_js {
       my $request = shift;
       $request->print(<<SUBJAVASCRIPT);
 <script type="text/javascript" language="javascript">  <script type="text/javascript" language="javascript">
   function updateRadio(radioButton,formtextbox,formsel,wgt) {    function updateRadio(radioButton,formtextbox,formsel,scores,weight) {
      var pts = formtextbox.value;       var pts = formtextbox.value;
      var resetbox =false;       var resetbox =false;
      if (isNaN(pts) || pts < 0) {       if (isNaN(pts) || pts < 0) {
  alert("A number equal or greater than 0 is expected. Entered value = "+pts);          alert("A number equal or greater than 0 is expected. Entered value = "+pts);
  for (var i=0; i<radioButton.length; i++) {          for (var i=0; i<radioButton.length; i++) {
    if (radioButton[i].checked) {             if (radioButton[i].checked) {
       formtextbox.value = i;        formtextbox.value = i;
       resetbox = true;        resetbox = true;
    }     }
Line 370  sub submission { Line 467  sub submission {
    formtextbox.value = "";     formtextbox.value = "";
  }   }
  return;   return;
        }
   
        if (pts > weight) {
           var resp = confirm("You entered a value ("+pts+
             ") greater than the weight for the part. Accept?");
           if (resp == false) {
              formtextbox.value = "";
              return;
          }
     }      }
   
     for (var i=0; i<radioButton.length; i++) {      for (var i=0; i<radioButton.length; i++) {
Line 378  sub submission { Line 484  sub submission {
    radioButton[i].checked=true;     radioButton[i].checked=true;
  }   }
     }      }
     updateSelect(formsel,pts,wgt);      updateSelect(formsel);
       scores.value = "0";
   }    }
   
   function writeBox(formrad,formsel,pts,wgt) {    function writeBox(formrad,formsel,pts,scores) {
     formrad.value = pts;      formrad.value = pts;
     updateSelect(formsel,pts,wgt);      scores.value = "0";
       updateSelect(formsel,pts);
     return;      return;
   }    }
   
   function updateSelect(formsel,pts,wgt) {    function clearRadBox(radioButton,formbox,formsel,scores) {
     if (pts == 0) {      for (var i=0; i<formsel.length; i++) {
       formsel[1].selected = true;   if (formsel[i].selected) {
     }      var selectx=i;
     if (pts > 0 && pts < wgt) {   }
       formsel[4].selected = true;  
     }      }
     if (pts == wgt) {      if (selectx == scores.value) { return };
       formsel[0].selected = true;      formbox.value = "";
       for (var i=0; i<radioButton.length; i++) {
    radioButton[i].checked=false;
     }      }
       scores.value = selectx;
     }
   
     function updateSelect(formsel) {
       formsel[0].selected = true;
     return;      return;
   }    }
   
   //=================== Check that a point is assigned for all the parts  ==============
     function checksubmit(val,total,parttot) {
        document.SCORE.gradeOpt.value = val;
        if (val == "Save & Next") {
    for (i=0;i<=total;i++) {
      for (j=0;j<parttot;j++) {
         var partid = eval("document.SCORE.partid"+i+"_"+j+".value");
         var selopt = eval("document.SCORE.GD_SEL"+i+"_"+partid);
         if (selopt[0].selected) {
    var points = eval("document.SCORE.GD_BOX"+i+"_"+partid+".value");
    if (points == "") {
        var name = eval("document.SCORE.name"+i+".value");
        alert("Please assign a score for "+name+", part "+partid+".");
        return false;
    }
         }
   
     }
          }
   
        }
        document.SCORE.submit();
    }
   
   //===================== Show list of keywords ====================
   function keywords(keyform) {    function keywords(keyform) {
     var keywds = keyform.value;      var keywds = keyform.value;
     var nret = prompt("Keywords list, separated by a space. Add/delete to list if desired.",keywds);      var nret = prompt("Keywords list, separated by a space. Add/delete to list if desired.",keywds);
     if (nret==null) return;      if (nret==null) return;
     keyform.value = nret;      keyform.value = nret;
   
       document.SCORE.refresh.value = "on";
       if (document.SCORE.keywords.value != "") {
    document.SCORE.submit();
       }
       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;      return;
   }    }
   
Line 415  sub submission { Line 568  sub submission {
     else return;      else return;
     var cleantxt = txt.replace(new RegExp('([\\f\\n\\r\\t\\v ])+', 'g')," ");      var cleantxt = txt.replace(new RegExp('([\\f\\n\\r\\t\\v ])+', 'g')," ");
     if (cleantxt=="") {      if (cleantxt=="") {
  alert("Select a word or group of words from document and then click this link.");   alert("Please select a word or group of words from document and then click this link.");
  return;   return;
     }      }
     var nret = prompt("Add selection to keyword list?",cleantxt);      var nret = prompt("Add selection to keyword list? Edit if desired.",cleantxt);
     if (nret==null) return;      if (nret==null) return;
     var curlist = document.SCORE.keywords.value;      var curlist = document.SCORE.keywords.value;
     document.SCORE.keywords.value = curlist+" "+nret;      document.SCORE.keywords.value = curlist+" "+nret;
       document.SCORE.refresh.value = "on";
       if (document.SCORE.keywords.value != "") {
    document.SCORE.submit();
       }
     return;      return;
   }    }
   
Line 432  sub submission { Line 589  sub submission {
     var subject = msgform.msgsub.value;      var subject = msgform.msgsub.value;
     var rtrchk  = eval("document.SCORE.includemsg"+usrctr);      var rtrchk  = eval("document.SCORE.includemsg"+usrctr);
     var msgchk = rtrchk.value;      var msgchk = rtrchk.value;
 //    alert("checked=>"+msgchk);  
     re = /msgsub/;      re = /msgsub/;
     var shwsel = "";      var shwsel = "";
     if (re.test(msgchk)) { shwsel = "checked" }      if (re.test(msgchk)) { shwsel = "checked" }
Line 454  sub submission { Line 610  sub submission {
     return;      return;
   }    }
   
 function savedMsgHeader(Nmsg,usrctr,fullname) {    function savedMsgHeader(Nmsg,usrctr,fullname) {
     var height = 30*Nmsg+250;      var height = 30*Nmsg+250;
     var scrollbar = "no";      var scrollbar = "no";
     if (height > 600) {      if (height > 600) {
Line 463  function savedMsgHeader(Nmsg,usrctr,full Line 619  function savedMsgHeader(Nmsg,usrctr,full
     }      }
 /*    if (window.pWin)  /*    if (window.pWin)
  window.pWin.close(); */   window.pWin.close(); */
     pWin = window.open('', 'MessageCenter', 'toolbar=no,location=no,scrollbars='+scrollbar+',width=600,height='+height);      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("<html><head>");
     pWin.document.write("<title>Message Central</title>");      pWin.document.write("<title>Message Central</title>");
   
Line 494  function savedMsgHeader(Nmsg,usrctr,full Line 650  function savedMsgHeader(Nmsg,usrctr,full
     pWin.document.write("  var includemsg = eval(\\"opener.document.SCORE.includemsg\\"+usrctr);");      pWin.document.write("  var includemsg = eval(\\"opener.document.SCORE.includemsg\\"+usrctr);");
     pWin.document.write("  includemsg.value = msgchk;");      pWin.document.write("  includemsg.value = msgchk;");
   
 //    pWin.document.write("  alert(\\"slected=\\"+msgchk)");  
     pWin.document.write("  self.close()");      pWin.document.write("  self.close()");
   
     pWin.document.write("}");      pWin.document.write("}");
Line 526  function displaySavedMsg(ctr,msg,shwsel) Line 681  function displaySavedMsg(ctr,msg,shwsel)
     pWin.document.write("<td><input name=\\"msg"+ctr+"\\" type=\\"text\\" value=\\""+msg+" \\" size=\\"60\\" maxlength=\\"80\\"></td></tr>");      pWin.document.write("<td><input name=\\"msg"+ctr+"\\" type=\\"text\\" value=\\""+msg+" \\" size=\\"60\\" maxlength=\\"80\\"></td></tr>");
 }  }
   
 function newMsg(newmsg,shwsel) {    function newMsg(newmsg,shwsel) {
     pWin.document.write("<tr bgcolor=\\"#ffffdd\\">");      pWin.document.write("<tr bgcolor=\\"#ffffdd\\">");
     pWin.document.write("<td align=\\"center\\">New</td>");      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 align=\\"center\\"><input name=\\"newmsgchk\\" type=\\"checkbox\\"" +shwsel+"></td>");
     pWin.document.write("<td><input name=\\"newmsg\\" type=\\"text\\" value=\\""+newmsg+" \\" size=\\"60\\" maxlength=\\"80\\"></td></tr>");      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() {    function msgTail() {
     pWin.document.write("</table>");      pWin.document.write("</table>");
     pWin.document.write("</td></tr></table>&nbsp;");      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=\\"Save\\" onClick=\\"javascript:checkInput()\\">&nbsp;&nbsp;");
Line 574  function msgTail() { Line 729  function msgTail() {
   }    }
   
   
 function highlightCentral() {    function highlightCentral() {
     hwdWin = window.open('', 'KeywordHighlightCentral', 'toolbar=no,location=no,scrollbars=no,width=400,height=300');      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("<html><head>");
     hwdWin.document.write("<title>Highlight Central</title>");      hwdWin.document.write("<title>Highlight Central</title>");
   
     hwdWin.document.write("<script language=javascript>");      hwdWin.document.write("<script language=javascript>");
     hwdWin.document.write("function updateChoice() {");      hwdWin.document.write("function updateChoice(flag) {");
     hwdWin.document.write("  opener.document.SCORE.kwclr.value = radioSelection(document.hlCenter.kwdclr);");      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.kwsize.value = radioSelection(document.hlCenter.kwdsize);");
     hwdWin.document.write("  opener.document.SCORE.kwstyle.value = radioSelection(document.hlCenter.kwdstyle);");      hwdWin.document.write("  opener.document.SCORE.kwstyle.value = radioSelection(document.hlCenter.kwdstyle);");
       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("  self.close()");      hwdWin.document.write("  self.close()");
     hwdWin.document.write("}");      hwdWin.document.write("}");
   
Line 608  function highlightCentral() { Line 767  function highlightCentral() {
     hwdWin.document.write("<table border=0 width=100%><tr><td bgcolor=\\"#777777\\">");      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("<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>");      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) {     function highlightbody(clrval,clrtxt,clrsel,szval,sztxt,szsel,syval,sytxt,sysel) { 
     hwdWin.document.write("<tr bgcolor=\\"#ffffdd\\">");      hwdWin.document.write("<tr bgcolor=\\"#ffffdd\\">");
     hwdWin.document.write("<td align=\\"left\\">");      hwdWin.document.write("<td align=\\"left\\">");
     hwdWin.document.write("<input name=\\"kwdclr\\" type=\\"radio\\" value=\\""+clrval+"\\" "+clrsel+">&nbsp;"+clrtxt+"</td>");      hwdWin.document.write("<input name=\\"kwdclr\\" type=\\"radio\\" value=\\""+clrval+"\\" "+clrsel+">&nbsp;"+clrtxt+"</td>");
Line 619  function highlightbody(clrval,clrtxt,clr Line 778  function highlightbody(clrval,clrtxt,clr
     hwdWin.document.write("<td align=\\"left\\">");      hwdWin.document.write("<td align=\\"left\\">");
     hwdWin.document.write("<input name=\\"kwdstyle\\" type=\\"radio\\" value=\\""+syval+"\\" "+sysel+">&nbsp;"+sytxt+"</td>");      hwdWin.document.write("<input name=\\"kwdstyle\\" type=\\"radio\\" value=\\""+syval+"\\" "+sysel+">&nbsp;"+sytxt+"</td>");
     hwdWin.document.write("</tr>");      hwdWin.document.write("</tr>");
  }    }
   
 function highlightend() {     function highlightend() { 
     hwdWin.document.write("</table>");      hwdWin.document.write("</table>");
     hwdWin.document.write("</td></tr></table>&nbsp;");      hwdWin.document.write("</td></tr></table>&nbsp;");
     hwdWin.document.write("<input type=\\"button\\" value=\\"Set Options\\" onClick=\\"javascript:updateChoice()\\">&nbsp;&nbsp;");  //    hwdWin.document.write("<input type=\\"button\\" value=\\"Save\\" onClick=\\"javascript:updateChoice(0)\\">&nbsp;&nbsp;");
       hwdWin.document.write("<input type=\\"button\\" value=\\"Save\\" onClick=\\"javascript:updateChoice(1)\\">&nbsp;&nbsp;");
     hwdWin.document.write("<input type=\\"button\\" value=\\"Cancel\\" onClick=\\"self.close()\\"><br><br>");      hwdWin.document.write("<input type=\\"button\\" value=\\"Cancel\\" onClick=\\"self.close()\\"><br><br>");
     hwdWin.document.write("</form>");      hwdWin.document.write("</form>");
     hwdWin.document.write("</body></html>");      hwdWin.document.write("</body></html>");
 }    }
   
 </script>  </script>
 SUBJAVASCRIPT  SUBJAVASCRIPT
 }  }
   (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) = &finduser($ENV{'form.student'});  
   if ($uname eq '') { &moreinfo($request,'Unable to find student'); return ''; }  
   
   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 ''; }  
   my $last = ($ENV{'form.lastSub'} eq 'last' ? 'last' : '');  
   
   # header info  
   if ($counter == 0) {  
       $request->print('<h2>&nbsp;<font color="#339933">Submission Record</font></h2>'.  
       '<font size=+1>&nbsp;<b>Resource: </b>'.$url.'</font>');  
   }  
   
   # option to display problem, only once else it cause problems with the form later since the problem has a form.  
   if ($ENV{'form.vProb'} eq 'yes' && $counter == 0) {  
       my $rendered=&Apache::loncommon::get_student_view($symb,$uname,$udom,  
    $ENV{'request.course.id'});  
       my $companswer=&Apache::loncommon::get_student_answers($symb,$uname,$udom,  
  $ENV{'request.course.id'});  
       my $result.='<table border="0" width="100%"><tr><td bgcolor="#777777">';  
       $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;  
       $result.='</td></tr></table>';  
       $result.='</td></tr></table><br />';  
       $request->print($result);  
   }  
   
   # beginning of form  # --------------------------- show submissions of a student, option to grade 
   if ($counter == 0) {  sub submission {
       my %keyhash = &Apache::lonnet::dump('nohist_handgrade',      my ($request,$counter,$total) = @_;
                  $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},  
  $ENV{'course.'.$ENV{'request.course.id'}.'.num'});      (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 $loginuser = $ENV{'user.name'}.':'.$ENV{'user.domain'};      my ($uname,$udom)     = ($ENV{'form.student'},$ENV{'form.userdom'});
       # if the handgrade db has never being initialized then set some default values      ($uname,$udom)        = &finduser($uname) if $udom eq '';
       if ($keyhash{$symb.'_handgrade'} eq '') {      $ENV{'form.fullname'} = &get_fullname ($uname,$udom) if $ENV{'form.fullname'} eq '';
   $keyhash{$symb.'_keywords'}     = '';  #    if ($uname eq '') { &moreinfo($request,'Unable to find student'); return ''; }
   $keyhash{$symb.'_subject'}      = &Apache::lonnet::metadata($url,'title');  
   $keyhash{$loginuser.'_kwclr'}   = $keyhash{$loginuser.'_kwclr'}   eq '' ? 'red' : $keyhash{$loginuser.'_kwclr'};      my $symb=($ENV{'form.symb'} ne '' ? $ENV{'form.symb'} : (&Apache::lonnet::symbread($url)));
   $keyhash{$loginuser.'_kwsize'}  = $keyhash{$loginuser.'_kwsize'}  eq '' ? '0' : $keyhash{$loginuser.'_kwsize'};      if ($symb eq '') { $request->print("Unable to handle ambiguous references:$url:."); return ''; }
   $keyhash{$loginuser.'_kwstyle'} = $keyhash{$loginuser.'_kwstyle'} eq '' ? ''  : $keyhash{$loginuser.'_kwstyle'};      my $last = ($ENV{'form.lastSub'} eq 'last' ? 'last' : '');
    $keyhash{$symb.'_savemsgN'}     = '0';      $ENV{'form.vProb'} = $ENV{'form.vProb'} ne '' ? $ENV{'form.vProb'} : 'yes';
       }  
       $request->print('<form action="/adm/grades" method="post" name="SCORE">'."\n".      # header info
       '<input type="hidden" name="symb"       value="'.$symb.'" />'."\n".      if ($counter == 0) {
       '<input type="hidden" name="url"        value="'.$url.'" />'."\n".   &sub_page_js($request);
       '<input type="hidden" name="vProb"      value="'.$ENV{'form.vProb'}.'" />'."\n".   $request->print('<h3>&nbsp;<font color="#339933">Submission Record</font></h3>'."\n".
       '<input type="hidden" name="lastSub"    value="'.$ENV{'form.lastSub'}.'" />'."\n".   '<font size=+1>&nbsp;<b>Resource: </b>'.$url.'</font>'."\n");
       '<input type="hidden" name="section"    value="'.$ENV{'form.section'}.'">'."\n".  
       '<input type="hidden" name="submitonly" value="'.$ENV{'form.submitonly'}.'">'."\n".   # option to display problem, only once else it cause problems 
       '<input type="hidden" name="response"   value="'.$ENV{'form.response'}.'">'."\n".          # with the form later since the problem has a form.
       '<input type="hidden" name="handgrade"  value="'.$ENV{'form.handgrade'}.'">'."\n".   if ($ENV{'form.vProb'} eq 'yes') {
       '<input type="hidden" name="command"    value="handgrade" />'."\n".      my $rendered=&Apache::loncommon::get_student_view($symb,$uname,$udom,
       '<input type="hidden" name="keywords"   value="'.$keyhash{$symb.'_keywords'}.'" />'."\n".        $ENV{'request.course.id'});
       '<input type="hidden" name="kwclr"      value="'.$keyhash{$loginuser.'_kwclr'}.'" />'."\n".      my $companswer=&Apache::loncommon::get_student_answers($symb,$uname,$udom,
       '<input type="hidden" name="kwsize"     value="'.$keyhash{$loginuser.'_kwsize'}.'" />'."\n".     $ENV{'request.course.id'});
       '<input type="hidden" name="kwstyle"    value="'.$keyhash{$loginuser.'_kwstyle'}.'" />'."\n".      my $result.='<table border="0" width="100%"><tr><td bgcolor="#777777">';
       '<input type="hidden" name="msgsub"     value="'.$keyhash{$symb.'_subject'}.'" />'."\n".      $result.='<table border="0" width="100%"><tr><td bgcolor="#e6ffff">';
       '<input type="hidden" name="savemsgN"   value="'.$keyhash{$symb.'_savemsgN'}.'" />'."\n".      $result.='<b> View of the problem - '.$ENV{'form.fullname'}.
       '<input type="hidden" name="NCT"'.   '</b></td></tr><tr><td bgcolor="#ffffff">'.$rendered.'<br />';
       ' value="'.($ENV{'form.NTSTU'} ne '' ? $ENV{'form.NTSTU'} : $total+1).'" />'."\n");      $result.='<b>Correct answer:</b><br />'.$companswer;
       $result.='</td></tr></table>';
       my ($cts,$prnmsg) = (1,'');      $result.='</td></tr></table><br />';
       while ($cts <= $keyhash{$symb.'_savemsgN'}) {      $request->print($result);
   $prnmsg.='<input type="hidden" name="savemsg'.$cts.'" value="'.$keyhash{$symb.'_savemsg'.$cts}.'" />'."\n";   }
   $cts++;  
       }   # kwclr is the only variable that is guaranteed to be non blank 
       $request->print($prnmsg);          # if this subroutine has been called once.
    my %keyhash = ();
    if ($ENV{'form.kwclr'} eq '') {
       %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.msgsub'}   = $keyhash{$symb.'_subject'} ne '' ? 
    $keyhash{$symb.'_subject'} : &Apache::lonnet::metadata($url,'title');
       $ENV{'form.savemsgN'} = $keyhash{$symb.'_savemsgN'} ne '' ? $keyhash{$symb.'_savemsgN'} : '0';
   
    }
   
       if ($ENV{'form.handgrade'} eq 'yes') {   $request->print('<form action="/adm/grades" method="post" name="SCORE">'."\n".
   $request->print(<<KEYWORDS);   '<input type="hidden" name="command"    value="handgrade" />'."\n".
 &nbsp;<b>Keyword Options</b>&nbsp;   '<input type="hidden" name="refresh"    value="off" />'."\n".
 <a href="javascript:keywords(document.SCORE.keywords)"; TARGET=_self>Keyword List</a>&nbsp; &nbsp;   '<input type="hidden" name="symb"       value="'.$symb.'" />'."\n".
    '<input type="hidden" name="url"        value="'.$url.'" />'."\n".
    '<input type="hidden" name="showgrading" value="'.$ENV{'form.showgrading'}.'" />'."\n".
    '<input type="hidden" name="vProb"      value="'.$ENV{'form.vProb'}.'" />'."\n".
    '<input type="hidden" name="lastSub"    value="'.$ENV{'form.lastSub'}.'" />'."\n".
    '<input type="hidden" name="section"    value="'.$ENV{'form.section'}.'">'."\n".
    '<input type="hidden" name="submitonly" value="'.$ENV{'form.submitonly'}.'">'."\n".
    '<input type="hidden" name="response"   value="'.$ENV{'form.response'}.'">'."\n".
    '<input type="hidden" name="handgrade"  value="'.$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"'.
    ' value="'.($ENV{'form.NTSTU'} ne '' ? $ENV{'form.NTSTU'} : $total+1).'" />'."\n");
   
    my ($cts,$prnmsg) = (1,'');
    while ($cts <= $ENV{'form.savemsgN'}) {
       $prnmsg.='<input type="hidden" name="savemsg'.$cts.'" value="'.
    ($keyhash{$symb.'_savemsg'.$cts} eq '' ? $ENV{'form.savemsg'.$cts} : $keyhash{$symb.'_savemsg'.$cts}).
    '" />'."\n";
       $cts++;
    }
    $request->print($prnmsg);
   
    if ($ENV{'form.handgrade'} eq 'yes' && $ENV{'form.showgrading'} eq 'yes') {
       $request->print(<<KEYWORDS);
   &nbsp;<b>Keyword Options:</b>&nbsp;
   <a href="javascript:keywords(document.SCORE.keywords)"; 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 Keyword list</a>&nbsp; &nbsp;   CLASS="page">Paste Selection to List</a>&nbsp; &nbsp;
 <a href="javascript:kwhighlight()"; TARGET=_self>Keyword Highlight Attribute</a><br /><br />  <a href="javascript:kwhighlight()"; TARGET=_self>Highlight Attribute</a><br /><br />
 KEYWORDS  KEYWORDS
       }          }
   }      }
   
   # Student info      my %record = &Apache::lonnet::restore($symb,$ENV{'request.course.id'},$udom,$uname);
   $request->print(($counter == 0 ? '' : '<br /><hr><br />'));      my ($partlist,$handgrade) = &response_type($url);
   my $fullname = ($ENV{'form.fullname'} ne '' ? $ENV{'form.fullname'} : &get_fullname($uname,$udom));  
   my $result.='<table border="0"><tr><td><b>Username: </b>'.$uname.  
       '</td><td><b>Fullname: </b>'.$fullname.  
       '</td><td><b>Domain: </b>'.$udom.'</td></tr>';  
   if ($ENV{'form.handgrade'} eq 'yes') {  
 #      my $subonly = &get_last_submission($symb,$uname,$udom,$ENV{'request.course.id'});  
       my ($classlist) = &getclasslist('all','0');  
       my @collaborators;  
 #      foreach ( sort(@{ $$classlist{'all'} }) ) {  
 #  my ($sname,$sdom) = split(/:/);  
 #  push @collaborators,$sname if (grep /\b$sname(\b|\.)/i,$subonly);  
 #      }  
 #      push @collaborators,'leede','carlandmm','freyniks'; # as a test to display collaborators.  
       if (scalar(@collaborators) != 0) {  
   $result.='<tr><td colspan=3><b>Collaborators: </b>';  
   foreach (@collaborators) {  
       $result.=$_.' ('.&get_fullname($_,$udom).') &nbsp; &nbsp;';  
   }  
   $result.='</td></tr>'."\n";  
   $result.='<input type="hidden" name="collaborator'.$counter.  
       '" value="'.(join ':',@collaborators).'" />'."\n";  
       }  
   }  
   $result.='</table>'."\n";  
   $request->print($result);  
   
   # print student answer      # Display student info
   if ($ENV{'form.lastSub'} eq 'lastonly') {      $request->print(($counter == 0 ? '' : '<br />'));
       my ($string,$timestamp)=&get_last_submission ($symb,$uname,$udom,$ENV{'request.course.id'});      my $result='<table border="0" width=100%><tr><td bgcolor="#777777">'."\n".
       $string=&keywords_highlight($string);   '<table border="0" width=100%><tr bgcolor="#edffff"><td>'."\n";
       my $lastsubonly='<table border="0" width=100%><tr><td bgcolor="#777777">';  
       $lastsubonly.='<table border="0" width=100%><tr bgcolor="#e6ffff">';      $result.='<b>Fullname: </b>'.$ENV{'form.fullname'}.
       $lastsubonly.='<td><b>Last Submission Only</b>'.   '<font color="#999999">&nbsp; &nbsp;Username: '.$uname.'</font>'.
   ($timestamp eq '' ? '' : '&nbsp; &nbsp; <b>Date Submitted:</b> '.$timestamp).'</td></tr>';   '<font color="#999999">&nbsp; &nbsp;Domain: '.$udom.'</font><br />'."\n";
       $lastsubonly.='<tr><td bgcolor="#ffffe6">';      $result.='<input type="hidden" name="name'.$counter.
       $lastsubonly.=$string;   '" value="'.$ENV{'form.fullname'}.'" />'."\n";
       $lastsubonly.='</td></tr></table></td></tr></table>'."\n";  
       $request->print($lastsubonly);      # If this is handgraded, then check for collaborators
   } else {      my @col_fullnames;
       $request->print(&Apache::loncommon::get_previous_attempt($symb,$uname,$udom,      my ($classlist,$fullname);
        $ENV{'request.course.id'},$last,      if ($ENV{'form.handgrade'} eq 'yes') {
        '.submission','Apache::grades::keywords_highlight'));   my @col_list;
   }   ($classlist,undef,$fullname) = &getclasslist('all','0');
    for (keys (%$handgrade)) {
       my $ncol = &Apache::lonnet::EXT('resource.'.$_.
       '.maxcollaborators',
                                               $symb,$udom,$uname);
       next if ($ncol <= 0);
               s/\_/\./g;
               next if ($record{'resource.'.$_.'.collaborators'} eq '');
               my (@collaborators) = split(/,?\s+/,
                                      $record{'resource.'.$_.'.collaborators'});
               my (@badcollaborators);
               if (scalar(@collaborators) != 0) {
                   $result.='<b>Collaborators: </b>';
                   foreach my $collaborator (@collaborators) {
                       my ($co_name,$co_dom) = split /\@|:/,$collaborator;
                       $co_dom = $udom if (! defined($co_dom));
                       next if ($co_name eq $uname && $co_dom eq $udom);
                       # Doing this grep allows 'fuzzy' specification
                       my @Matches = grep /^$co_name:$co_dom/i,
                       keys %$classlist;
                       if (! scalar(@Matches)) {
                           push @badcollaborators,$collaborator;
                           next;
                       }
                       push @col_list, @Matches;
                       foreach (@Matches) {
                           my ($lastname,$givenn) = split(/,/,$$fullname{$_});
                           push @col_fullnames, $givenn.' '.$lastname;
                           $result.=$$fullname{$_}.'&nbsp; &nbsp; &nbsp;';
                       }
                   }
                   $result.='<br />'."\n";
                   if (scalar(@badcollaborators) > 0) {
                       $result.='<table border="0"><tr bgcolor="#ffbbbb"><td>';
                       $result.='This student has submitted ';
                       if (scalar(@badcollaborators) == 1) {
                           $result .= 'an invalid collaborator';
                       } else {
                           $result .= 'invalid collaborators';
                       }
                       $result .= ': '.join(', ',@badcollaborators);
                       
                   }
                   if (scalar(@collaborators > $ncol)) {
                       $result .= '<table border="0"><tr bgcolor="#ffbbbb"><td>';
                       $result .= 'This student has sumbitted too many '.
                           'collaborators.  Maximum is '.$ncol;
                       $result .= '</td></tr></table>';
                   }
                   $result.='<input type="hidden" name="collaborator'.$counter.
                       '" value="'.(join ':',@col_list).'" />'."\n";
               }
    }
       }
       $request->print($result."\n");
   
       # print student answer/submission
       # Options are (1) Handgaded submission only
       #             (2) Last submission, includes submission that is not handgraded 
       #                  (for multi-response type part)
       #             (3) Last submission plus the parts info
       #             (4) The whole record for this student
       if ($ENV{'form.lastSub'} =~ /^(lastonly|hdgrade)$/) {
    if ($ENV{'form.'.$uname.':'.$udom.':submitted_by'}) {
       my $submitby=''.
    '<b>Collaborative submission by: </b>'.
    '<a href="javascript:viewSubmitter(\''.
    $ENV{'form.'.$uname.':'.$udom.':submitted_by'}.
    '\')"; TARGET=_self>'.
    $$fullname{$ENV{'form.'.$uname.':'.$udom.':submitted_by'}}.'</a>';
       $request->print($submitby);
    } else {
       my ($string,$timestamp)=
    &get_last_submission (%record);
       my $lastsubonly.=''.
    ($$timestamp eq '' ? '' : '<b>Date Submitted:</b> '.
    $$timestamp).'';
       if ($$timestamp eq '') {
    $lastsubonly.='<tr><td bgcolor="#ffffe6">'.$$string[0].'</td></tr>'."\n";
       } else {
    for my $part (sort keys(%$handgrade)) {
       foreach (@$string) {
    my ($partid,$respid) = /^resource\.(\d+)\.(\d+)\.submission/;
    if ($part eq ($partid.'_'.$respid)) {
       my ($ressub,$subval) = split(/:/,$_,2);
       $lastsubonly.='<tr><td bgcolor="#ffffe6"><b>Part '.
    $partid.'</b> <font color="#999999">( ID '.$respid.
    ' )</font>&nbsp; &nbsp;<b>Answer: </b>'.
    &keywords_highlight($subval).'</td></tr>'."\n"
    if ($ENV{'form.lastSub'} eq 'lastonly' || 
       ($ENV{'form.lastSub'} eq 'hdgrade' && 
        $$handgrade{$part} =~ /:yes$/));
    }
       }
    }
       }
       $lastsubonly.='</td></tr>'."\n";
       $request->print($lastsubonly);
    }
       } else {
    $request->print(&Apache::loncommon::get_previous_attempt($symb,$uname,$udom,
    $ENV{'request.course.id'},
    $last,'.submission',
    'Apache::grades::keywords_highlight'));
       }
       
       # return if view submission with no grading option
       if ($ENV{'form.showgrading'} eq '') {
    $request->print('</td></tr></table></td></tr></table></form>'."\n");
    return;
       }
   
   my $wgt    = &Apache::lonnet::EXT('resource.partid.weight',$symb,$udom,$uname);      # Grading options
   my $wgtmsg = ($wgt > 0 ? '(problem weight)' : '<font color="red">problem weight assigned by computer</font>');      $result='<input type="hidden" name="newmsg'.$counter.'" value="" />'."\n".
   $wgt       = ($wgt > 0 ? $wgt : '1');   '<input type="hidden" name="includemsg'.$counter.'" value="" />'."\n".
   my %record = &Apache::lonnet::restore($symb,$ENV{'request.course.id'},$udom,$uname);   '<input type="hidden" name="unamedom'.$counter.'" value="'.$uname.':'
   my $score  = ($record{'resource.0.awarded'} eq '' ? '' : $record{'resource.0.awarded'}*$wgt);   .$udom.'" />'."\n";
       my ($lastname,$givenn) = split(/,/,$ENV{'form.fullname'});
   # display grading options      my $msgfor = $givenn.' '.$lastname;
   $result='<input type="hidden" name="WGT'.$counter.'" value="'.$wgt.'" />'.      if (scalar(@col_fullnames) > 0) {
       '<input type="hidden" name="unamedom'.$counter.'" value="'.$uname.':'.$udom.'" />'."\n";   my $lastone = pop @col_fullnames;
   $result.='<input type="hidden" name="newmsg'.$counter.'" value="" />'."\n";   $msgfor .= ', '.(join ', ',@col_fullnames).' and '.$lastone.'.';
   $result.='<input type="hidden" name="includemsg'.$counter.'" value="" />'."\n";      }
   $result.='<table border="0"><tr><td><b>Points</b></td><td>';      $result.='<tr><td bgcolor="#ffffff">'."\n".
    '&nbsp;<a href="javascript:msgCenter(document.SCORE,'.$counter.
   my $ctr = 0;   ',\''.$msgfor.'\')"; TARGET=_self>'.
   $result.='<table border="0"><tr>';  # display radio buttons in a nice table with 10 across   'Compose Message to student'.(scalar(@col_fullnames) >= 1 ? 's' : '').'</a>'.
   while ($ctr<=$wgt) {   '<br />&nbsp;(Message will be sent when you click on Save & Next below.)'."\n" 
       $result.= '<td><input type="radio" name="RADVAL'.$counter.'" '.   if ($ENV{'form.handgrade'} eq 'yes');
   'onclick="javascript:writeBox(this.form.GRADE_BOX'.$counter.      $request->print($result);
     ',this.form.GRADE_SEL'.$counter.','.$ctr.','.$wgt.')" '.  
       my %seen = ();
       my @partlist;
       for (sort keys(%$handgrade)) {
    my ($partid,$respid) = split(/_/);
    next if ($seen{$partid} > 0);
    $seen{$partid}++;
    next if ($$handgrade{$_} =~ /:no$/);
    push @partlist,$partid;
    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);
    $result='<input type="hidden" name="WGT'.$counter.'_'.$partid.'" value="'.$wgt.'" />';
    $result.='<table border="0"><tr><td><b>Part </b>'.$partid.' <b>Points: </b></td><td>';
   
    my $ctr = 0;
    $result.='<table border="0"><tr>';  # display radio buttons in a nice table 10 across
    while ($ctr<=$wgt) {
       $result.= '<td><input type="radio" name="RADVAL'.$counter.'_'.$partid.'" '.
    'onclick="javascript:writeBox(this.form.GD_BOX'.$counter.'_'.$partid.
    ',this.form.GD_SEL'.$counter.'_'.$partid.','.$ctr.
    ',this.form.stores'.$counter.'_'.$partid.')" '.
  ($score eq $ctr ? 'checked':'').' /> '.$ctr."</td>\n";   ($score eq $ctr ? 'checked':'').' /> '.$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>&nbsp;<b>or</b>&nbsp;</td>';   $result.='</td><td>&nbsp;<b>or</b>&nbsp;</td>';
   $result.='<td><input type="text" name="GRADE_BOX'.$counter.'"'.   $result.='<td><input type="text" name="GD_BOX'.$counter.'_'.$partid.'"'.
       ($score ne ''? ' value = "'.$score.'"':'').' size="4" '.      ($score ne ''? ' value = "'.$score.'"':'').' size="4" '.
        'onChange="javascript:updateRadio(this.form.RADVAL'.$counter.      'onChange="javascript:updateRadio(this.form.RADVAL'.$counter.'_'.$partid.
         ',this.form.GRADE_BOX'.$counter.      ',this.form.GD_BOX'.$counter.'_'.$partid.
    ',this.form.GRADE_SEL'.$counter.',\''.$wgt.'\')" /></td>'."\n";      ',this.form.GD_SEL'.$counter.'_'.$partid.
   $result.='<td>/'.$wgt.' '.$wgtmsg.' </td><td>';      ',this.form.stores'.$counter.'_'.$partid.
       ','.$wgt.')" /></td>'."\n";
   foreach my $part (&getpartlist($url)) {   $result.='<td>/'.$wgt.' '.$wgtmsg.' </td><td>';
     my ($temp,$part,$type)=split(/_/,$part);  
     if ($type eq 'solved') {   $result.='<select name="GD_SEL'.$counter.'_'.$partid.'" '.
       my ($status,$foo)=split(/_/,$record{"resource.$part.$type"},2);      'onChange="javascript:clearRadBox(this.form.RADVAL'.$counter.'_'.$partid.
       $status = 'partial' if ($foo =~ /partially/);      ',this.form.GD_BOX'.$counter.'_'.$partid.
       $status = 'nothing' if ($status eq '');      ',this.form.GD_SEL'.$counter.'_'.$partid.
       $result.='<select name="GRADE_SEL'.$counter.'">'."\n";      ',this.form.stores'.$counter.'_'.$partid.')" />'."\n".
       my $optsel = '<option>correct</option><option>incorrect</option>'.      '<option selected="on"> </option>'.
   '<option>excused</option><option>ungraded</option>'.      '<option>excused</option></select>'."&nbsp&nbsp\n";
       '<option>partial</option><option>nothing</option>'."\n";   $result.='<input type="hidden" name="stores'.$counter.'_'.$partid.'" value="0" />';
       $optsel =~ s/<option>$status/<option selected="on">$status/;   $result.='</td></tr></table>'."\n";
       $result.=$optsel;   $request->print($result);
       $result.="</select>&nbsp&nbsp\n";      }
       $result.='<a href="javascript:msgCenter(document.SCORE,'.$counter.      $result='<input type="hidden" name="partlist'.$counter.
   ',\''.$fullname.'\')"; TARGET=_self>Compose Message</a></td></tr>'."\n";   '" value="'.(join ":",@partlist).'" />'."\n";
       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
       if ($counter == $total) {
    my $endform='<table border="0"><tr><td>'.
       '<input type="hidden" name="gradeOpt" value="" />'."\n";
    if ($ENV{'form.handgrade'} eq 'yes') {
       $endform.='<input type="button" value="Save & Next" '.
    'onClick="javascript:checksubmit(\'Save & Next\','.
    $total.','.scalar(@partlist).');" TARGET=_self> &nbsp;'."\n";
       my $ntstu ='<select name="NTSTU">'.
    '<option>1</option><option>2</option>'.
    '<option>3</option><option>5</option>'.
    '<option>7</option><option>10</option></select>'."\n";
       my $nsel = ($ENV{'form.NTSTU'} ne '' ? $ENV{'form.NTSTU'} : '1');
       $ntstu =~ s/<option>$nsel</<option selected="on">$nsel</;
       $endform.=$ntstu.'student(s) &nbsp;&nbsp;';
    } else {
       $endform.='<input type="hidden" name="NTSTU" value="1" />'."\n";
    }
    $endform.='<input type="button" value="Next" '.
       'onClick="javascript:checksubmit(\'Next\');" TARGET=_self> &nbsp;'."\n".
       '<input type="button" value="Previous" '.
       'onClick="javascript:checksubmit(\'Previous\');" TARGET=_self> &nbsp;';
    $endform.='(Next and Previous do not save the scores.)'."\n" 
       if ($ENV{'form.handgrade'} eq 'yes');
    $endform.='</td><tr></table></form>';
    $endform.=&show_grading_menu_form($symb,$url);
    $request->print($endform);
     }      }
   }      return '';
   $result.='</table>';  
   $request->print($result);  
   
   # print end of form  
   if ($counter == $total) {  
       my $endform.='<table border="0"><tr><td><input type="submit" name="gradeOpt" value="Save & Next" />';  
       my $ntstu ='<select name="NTSTU">'.  
   '<option>1</option><option>2</option>'.  
       '<option>3</option><option>5</option>'.  
   '<option>7</option><option>10</option></select>'."\n";  
       my $nsel = ($ENV{'form.NTSTU'} ne '' ? $ENV{'form.NTSTU'} : '1');  
       $ntstu =~ s/<option>$nsel/<option selected="on">$nsel/;  
       $endform.=$ntstu.'student(s) &nbsp;&nbsp;';  
       $endform.='<input type="submit" name="gradeOpt" value="Next" />&nbsp';  
       $endform.='<input type="submit" name="gradeOpt" value="Previous" />&nbsp';  
       $endform.='(Next and Previous do not save the scores.)';  
       $endform.='</td><tr></table></form>';  
       $request->print($endform);  
   }  
   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,$username);  
      if ($returnhash{'version'}) {  
  my %lasthash=();   my %lasthash=();
  my ($version);   my ($version);
  for ($version=1;$version<=$returnhash{'version'};$version++) {   for ($version=1;$version<=$returnhash{'version'};$version++) {
   foreach (sort(split(/\:/,$returnhash{$version.':keys'}))) {      foreach (sort(split(/\:/,$returnhash{$version.':keys'}))) {
       $lasthash{$_}=$returnhash{$version.':'.$_};   $lasthash{$_}=$returnhash{$version.':'.$_};
   }   if ($returnhash{$version.':'.$_} =~ /(SUBMITTED|DRAFT)$/) {
         }     $timestamp = scalar(localtime($returnhash{$version.':timestamp'}));
          } 
       }
    }
  foreach ((keys %lasthash)) {   foreach ((keys %lasthash)) {
     if ($_ =~ /\.submission$/) {$string = $lasthash{$_}}      if ($_ =~ /\.submission$/) {
     if ($_ =~ /timestamp/) {$timestamp=scalar(localtime($lasthash{$_}))};   my ($partid,$foo) = split(/submission$/,$_);
    my $draft  = $lasthash{$partid.'awarddetail'} eq 'DRAFT' ?
       '<font color="red">Draft Copy</font> ' : '';
    push @string, (join(':',$_,$draft.$lasthash{$_}));
       }
  }   }
     }      }
      $string = $string eq '' ? 'Nothing submitted - no attempts.' : $string;      @string = $string[0] eq '' ? 'Nothing submitted - no attempts.' : @string;
      return $string,$timestamp;      return \@string,\$timestamp;
   }  
 }  }
   
   #--- High light keywords, with style choosen by user.
 sub keywords_highlight {  sub keywords_highlight {
   my $string  = shift;      my $string    = shift;
   (my $url=$ENV{'form.url'})=~s-^http://($ENV{'SERVER_NAME'}|$ENV{'HTTP_HOST'})--;      my $size      = $ENV{'form.kwsize'} eq '0' ? '' : 'size='.$ENV{'form.kwsize'};
   my $symb=($ENV{'form.symb'} ne '' ? $ENV{'form.symb'} : (&Apache::lonnet::symbread($url)));      my $styleon   = $ENV{'form.kwstyle'} eq ''  ? '' : $ENV{'form.kwstyle'};
   my $loginuser = $ENV{'user.name'}.':'.$ENV{'user.domain'};      (my $styleoff = $styleon) =~ s/\</\<\//;
       my @keylist   = split(/[,\s+]/,$ENV{'form.keywords'});
   my @kwkeys = ($symb.'_keywords',      foreach (@keylist) {
  $loginuser.'_kwclr',   $string =~ s/\b$_(\b|\.)/\<font color\=$ENV{'form.kwclr'} $size\>$styleon$_$styleoff\<\/font\>/gi;
  $loginuser.'_kwsize',      }
  $loginuser.'_kwstyle'      # This is not really the right place to do this, but I cannot find a
  );      # better one at this time.  So here we go - the m in the s:::mg causes
       # ^ to match the beginning of a new line.  So we replace(???) the beginning
   my %keyhash = &Apache::lonnet::get      # of the line with <br /> to make things formatted a little better.
       ('nohist_handgrade',\@kwkeys,      $string =~ s:^:<br />:mg;
        $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},      return $string;
        $ENV{'course.'.$ENV{'request.course.id'}.'.num'});  
   my @keylist = split(/[,\s+]/,$keyhash{$symb.'_keywords'});  
   my $size    = $keyhash{$kwkeys[2]} eq '0' ? '' : 'size='.$keyhash{$kwkeys[2]};  
   my $styleon = $keyhash{$kwkeys[3]} eq ''  ? '' : $keyhash{$kwkeys[3]};  
   (my $styleoff = $styleon) =~ s/\</\<\//;  
   foreach my $word (@keylist) {  
       next if ($word eq '');  
       $string =~ s/\b$word(\b|\.)/\<font color\=$keyhash{$kwkeys[1]} $size\>$styleon$word$styleoff\<\/font\>/gi;  
   }  
   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'};      if ($button eq 'Save & Next') {
   my %keyhash = ();   my $ctr = 0;
   $keyhash{$symb.'_handgrade'} = 'activated';   while ($ctr < $ngrade) {
   $keyhash{$symb.'_keywords'} = $ENV{'form.keywords'};      my ($uname,$udom) = split(/:/,$ENV{'form.unamedom'.$ctr});
   $keyhash{$symb.'_subject'} = $ENV{'form.msgsub'};      my ($errorflag) = &saveHandGrade($request,$url,$symb,$uname,$udom,$ctr);
   $keyhash{$loginuser.'_kwclr'} = $ENV{'form.kwclr'};  
   $keyhash{$loginuser.'_kwsize'} = $ENV{'form.kwsize'};      my $includemsg = $ENV{'form.includemsg'.$ctr};
   $keyhash{$loginuser.'_kwstyle'} = $ENV{'form.kwstyle'};      my ($subject,$message,$msgstatus) = ('','','');
       if ($includemsg =~ /savemsg|new$ctr/) {
   my ($ctr,$idx) = (1,1);   $subject = $ENV{'form.msgsub'} if ($includemsg =~ /^msgsub/);
   while ($ctr <= $ENV{'form.savemsgN'}) {   my (@msgnum) = split(/,/,$includemsg);
       if ($ENV{'form.savemsg'.$ctr} ne '') {   foreach (@msgnum) {
   $keyhash{$symb.'_savemsg'.$idx} = $ENV{'form.savemsg'.$ctr};      $message.=$ENV{'form.'.$_} if ($_ =~ /savemsg|newmsg/ && $_ ne '');
   $idx++;   }
       }   $message =~ s/\s+/ /g;
       $ctr++;   $msgstatus = &Apache::lonmsg::user_normal_msg ($uname,$udom,
   }         $ENV{'form.msgsub'},$message);
   $ctr = 0;      }
   while ($ctr < $ngrade) {      if ($ENV{'form.collaborator'.$ctr}) {
       if ($ENV{'form.newmsg'.$ctr} ne '') {   my (@collaborators) = split(/:/,$ENV{'form.collaborator'.$ctr});
   $keyhash{$symb.'_savemsg'.$idx} = $ENV{'form.newmsg'.$ctr};   foreach (@collaborators) {
   $idx++;      &saveHandGrade($request,$url,$symb,$_,$udom,$ctr,
       }     $ENV{'form.unamedom'.$ctr});
       $ctr++;      if ($message ne '') {
   }   $msgstatus = &Apache::lonmsg::user_normal_msg ($_,$udom,
          $ENV{'form.msgsub'},
          $message);
       }
    }
       }
       $ctr++;
    }
       }
   
   $keyhash{$symb.'_savemsgN'} = --$idx;      # Keywords sorted in alphabatical order
   my $putresult = &Apache::lonnet::put      my $loginuser = $ENV{'user.name'}.':'.$ENV{'user.domain'};
       ('nohist_handgrade',\%keyhash,      my %keyhash = ();
        $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},      $ENV{'form.keywords'}           =~ s/,\s{0,}|\s+/ /g;
        $ENV{'course.'.$ENV{'request.course.id'}.'.num'});      $ENV{'form.keywords'}           =~ s/^\s+|\s+$//;
       my (@keywords) = sort(split(/\s+/,$ENV{'form.keywords'}));
   my (@parts) = sort(&getpartlist($url));      $ENV{'form.keywords'} = join(' ',@keywords);
       $keyhash{$symb.'_keywords'}     = $ENV{'form.keywords'};
   if ($button eq 'Save & Next') {      $keyhash{$symb.'_subject'}      = $ENV{'form.msgsub'};
       my $ctr = 0;      $keyhash{$loginuser.'_kwclr'}   = $ENV{'form.kwclr'};
       while ($ctr < $ngrade) {      $keyhash{$loginuser.'_kwsize'}  = $ENV{'form.kwsize'};
   my ($uname,$udom) = split(/:/,$ENV{'form.unamedom'.$ctr});      $keyhash{$loginuser.'_kwstyle'} = $ENV{'form.kwstyle'};
   &saveHandGrade($url,$symb,$uname,$udom,$ctr,@parts);  
   if ($ENV{'form.collaborator'.$ctr}) {      # message center - Order of message gets changed. Blank line is eliminated.
       my (@collaborators) = split(/:/,$ENV{'form.collaborator'.$ctr});      # New messages are saved in ENV for the next student.
       foreach (@collaborators) {      # All messages are saved in nohist_handgrade.db
   &saveHandGrade($url,$symb,$_,$udom,$ctr,@parts);      my ($ctr,$idx) = (1,1);
       }      while ($ctr <= $ENV{'form.savemsgN'}) {
   }   if ($ENV{'form.savemsg'.$ctr} ne '') {
   $ctr++;      $keyhash{$symb.'_savemsg'.$idx} = $ENV{'form.savemsg'.$ctr};
       }      $idx++;
   }   }
   my $firststu = $ENV{'form.unamedom0'};   $ctr++;
   my $laststu  = $ENV{'form.unamedom'.($ngrade-1)};      }
       $ctr = 0;
       while ($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
       if ($ENV{'form.refresh'} eq 'on') {
    my $ctr = 0;
    $ENV{'form.NTSTU'}=$ngrade;
    while ($ctr < $ngrade) {
       ($ENV{'form.student'},$ENV{'form.userdom'}) = split(/:/,$ENV{'form.unamedom'.$ctr});
       &submission($request,$ctr,$ngrade-1);
       $ctr++;
    }
    return '';
       }
   
   my ($classlist) = &getclasslist($ENV{'form.section'},'0');      # Get the next/previous one or group of students
 #  print "first=$firststu,last=$laststu<br>";      my $firststu = $ENV{'form.unamedom0'};
   my (@nextlist,@prevlist);      my $laststu = $ENV{'form.unamedom'.($ngrade-1)};
   my ($nextflg,$prevflg,$ctr,$ctprev) = (0,0,0,0);      $ctr = 2;
   foreach my $student ( sort(@{ $$classlist{$ENV{'form.section'}} }) ) {      while ($laststu eq '') {
       my ($uname,$udom) = split(/:/,$student);   $laststu  = $ENV{'form.unamedom'.($ngrade-$ctr)};
       my ($type,$status) = &student_gradeStatus($ENV{'form.url'},$udom,$uname);   $ctr++;
       next if ($status eq 'nothing' && $ENV{'form.submitonly'} eq 'yes');   $laststu = $firststu if ($ctr > $ngrade);
       }
       if ($nextflg == 1 && $button =~ /Next$/) {  
   push @nextlist,$uname if ($ctr < $ntstu);      my (undef,undef,$fullname) = &getclasslist($ENV{'form.section'},'0');
   $ctr++;      my (@parsedlist,@nextlist);
       }      my ($nextflg) = 0;
       $nextflg = 1 if ($student eq $laststu);      foreach (sort {lc($$fullname{$a}) cmp lc($$fullname{$b}) } keys %$fullname) {
       $prevflg = 1 if ($student eq $firststu);   if ($nextflg == 1 && $button =~ /Next$/) {
       if ($prevflg == 0 && $button eq 'Previous') {      push @parsedlist,$_;
   push @prevlist,$uname;   }
   $ctprev++;   $nextflg = 1 if ($_ eq $laststu);
       }   if ($button eq 'Previous') {
   }      last if ($_ eq $firststu);
 #  print "next student=@nextlist<br>";      push @parsedlist,$_;
   if ($button eq 'Previous') {   }
       if ($ctprev <= $ntstu) {      }
   @nextlist = @prevlist;      $ctr = 0;
       } else {      my ($partlist,$handgrade) = &response_type($ENV{'form.url'});
   my $idx = 0;      @parsedlist = reverse @parsedlist if ($button eq 'Previous');
   my $start = $ctprev - $ntstu;      foreach my $student (@parsedlist) {
   while ($idx < $ntstu) {   my ($uname,$udom) = split(/:/,$student);
       $nextlist[$idx] = $prevlist[$start+$idx];   if ($ENV{'form.submitonly'} eq 'yes') {
       $idx++;      my (%status) = &student_gradeStatus($ENV{'form.url'},$symb,$udom,$uname,$partlist) ;
   }      my $statusflg = '';
       }      foreach (keys(%status)) {
   }   $statusflg = 1 if ($status{$_} ne 'nothing');
   $ctr = 0;   my ($foo,$partid,$foo1) = split(/\./);
   my $total = scalar(@nextlist)-1;   $statusflg = '' if ($status{'resource.'.$partid.'.submitted_by'} ne '');
   foreach my $student (@nextlist) {      }
       $ENV{'form.student'} = $student;      next if ($statusflg eq '');
       &submission($request,$ctr,$total);   }
       $ctr++;   push @nextlist,$student if ($ctr < $ntstu);
   }   $ctr++;
       }
   
   return 'The End';      $ctr = 0;
       my $total = scalar(@nextlist)-1;
   
       foreach (sort @nextlist) {
    my ($uname,$udom,$submitter) = split(/:/);
    $ENV{'form.student'}  = $uname;
    $ENV{'form.userdom'}  = $udom;
    $ENV{'form.fullname'} = $$fullname{$_};
   # $ENV{'form.'.$_.':submitted_by'} = $submitter;
   # print "submitter=$ENV{'form.'.$_.':submitted_by'}= $submitter:<br>";
    &submission($request,$ctr,$total);
    $ctr++;
       }
       if ($total < 0) {
    my $the_end = '<h3><font color="red">LON-CAPA User Message</font></h3><br />'."\n";
    $the_end.='<b>Message: </b> No more students for this section or class.<br /><br />'."\n";
    $the_end.='Click on the button below to return to the grading menu.<br /><br />'."\n";
    $the_end.=&show_grading_menu_form ($symb,$url);
    $request->print($the_end);
       }
       return '';
 }  }
   
   #---- Save the score and award for each student, if changed
 sub saveHandGrade {  sub saveHandGrade {
   my ($url,$symb,$stuname,$domain,$newflg,@parts) = @_;      my ($request,$url,$symb,$stuname,$domain,$newflg,$submitter) = @_;
   my %record=&Apache::lonnet::restore($symb,$ENV{'request.course.id'},$domain,$stuname);      my %record=&Apache::lonnet::restore($symb,$ENV{'request.course.id'},$domain,$stuname);
   my %newrecord;      my %newrecord;
       foreach (split(/:/,$ENV{'form.partlist'.$newflg})) {
   foreach my $part (@parts) {   if ($ENV{'form.GD_SEL'.$newflg.'_'.$_} eq 'excused') {
     my ($temp,$part,$type)=split(/_/,$part);      $newrecord{'resource.'.$_.'.solved'} = 'excused' 
     my $oldscore=$record{"resource.$part.$type"};   if ($record{'resource.'.$_.'.solved'} ne 'excused');
     my $newscore;   } else {
     if ($type eq 'awarded' && $newflg >= 0) {      my $pts = ($ENV{'form.GD_BOX'.$newflg.'_'.$_} ne '' ? 
  my $pts    = ($ENV{'form.GRADE_BOX'.$newflg} ne '' ?          $ENV{'form.GD_BOX'.$newflg.'_'.$_} : 
       $ENV{'form.GRADE_BOX'.$newflg} : $ENV{'form.RADVAL'.$newflg});         $ENV{'form.RADVAL'.$newflg.'_'.$_});
  my $wgt    = $ENV{'form.WGT'.$newflg};      my $wgt = $ENV{'form.WGT'.$newflg.'_'.$_} eq '' ? 1 : 
 # my $sel    = $ENV{'form.GRADE_SEL'.$newflg};   $ENV{'form.WGT'.$newflg.'_'.$_};
  $newscore  = $pts/$wgt if ($wgt != 0);      my $partial= $pts/$wgt;
     }      $newrecord{'resource.'.$_.'.awarded'}  = $partial 
     if ($type eq 'solved') {   if ($record{'resource.'.$_.'.awarded'} ne $partial);
       $newscore = $ENV{'form.GRADE_SEL'.$newflg} if ($newflg >= 0);      my $reckey = 'resource.'.$_.'.solved';
       my $update=0;      if ($partial == 0) {
       if ($newscore eq 'nothing' ) {   $newrecord{$reckey} = 'incorrect_by_override' 
  if ($oldscore ne '') {      if ($record{$reckey} ne 'incorrect_by_override');
   $update=1;      } else {
   $newscore = '';   $newrecord{$reckey} = 'correct_by_override' 
  }      if ($record{$reckey} ne 'correct_by_override');
       } elsif ($oldscore !~ m/^$newscore/) {      }
  $update=1;      $newrecord{'resource.'.$_.'.submitted_by'} = $submitter 
  if ($newscore eq 'correct')   { $newscore = 'correct_by_override'; }   if ($submitter && ($record{'resource.'.$_.'.submitted_by'} ne $submitter));
  if ($newscore eq 'incorrect') { $newscore = 'incorrect_by_override'; }   }
  if ($newscore eq 'excused')   { $newscore = 'excused'; }  
  if ($newscore eq 'ungraded')  { $newscore = 'ungraded_attempted'; }  
  if ($newscore eq 'partial')   { $newscore = 'correct_partially_by_override'; }  
       }  
       if ($update) { $newrecord{"resource.$part.$type"}=$newscore; }  
     } else {  
       if ($oldscore ne $newscore) {  
  $newrecord{"resource.$part.$type"}=$newscore;  
       }  
     }      }
   }  
   if ( scalar(keys(%newrecord)) > 0 ) {  
       $newrecord{'resource.regrader'}="$ENV{'user.name'}:$ENV{'user.domain'}";  
 #      while (my ($k,$v) = each %newrecord) {  
 # print "k=$k:v=$v:<br>\n";  
 #      }  
 #      print "symb=$symb,courseid=$ENV{'request.course.id'},dom=$domain,name=$stuname<br>";  
 #     &Apache::lonnet::cstore(\%newrecord,$symb,$ENV{'request.course.id'},$domain,$stuname);  
   }  
   return '';  
 }  
   
 sub get_symb_and_url {      if (scalar(keys(%newrecord)) > 0) {
   my ($request) = @_;   $newrecord{'resource.regrader'}="$ENV{'user.name'}:$ENV{'user.domain'}";
   (my $url=$ENV{'form.url'}) =~ s-^http://($ENV{'SERVER_NAME'}|$ENV{'HTTP_HOST'})--;   &Apache::lonnet::cstore(\%newrecord,$symb,
   my $symb=($ENV{'form.symb'} ne '' ? $ENV{'form.symb'} : (&Apache::lonnet::symbread($url)));   $ENV{'request.course.id'},$domain,$stuname);
   if ($symb eq '') { $request->print("Unable to handle ambiguous references:$url:."); return ''; }      }
   return ($symb,$url);      return '';
 }  }
   
 sub show_grading_menu_form {  #--------------------------------------------------------------------------------------
   my ($symb,$url)=@_;  #
   my $result.='<form action="/adm/grades" method="post">'."\n".  #-------------------------- Next few routines handles grading by section or whole class
     '<input type="hidden" name="symb" value="'.$symb.'" />'."\n".  #
       '<input type="hidden" name="url" value="'.$url.'" />'."\n".  #--- Javascript to handle grading by section or whole class
  '<input type="hidden" name="command" value="gradingmenu" />'."\n".  sub viewgrades_js {
   '<input type="submit" name="submit" value="Grading Menu" />'."\n".      my ($request) = shift;
     '</form>'."\n";  
   return $result;  
 }  
   
 sub gradingmenu {      $request->print(<<VIEWJAVASCRIPT);
   my ($request) = @_;  <script type="text/javascript" language="javascript">
   my ($symb,$url)=&get_symb_and_url($request);     function writePoint(partid,weight,point) {
   if (!$symb) {return '';}   var radioButton = eval("document.classgrade.RADVAL_"+partid);
   my $allkeys = &Apache::lonnet::metadata($url,'keys');   var textbox = eval("document.classgrade.TEXTVAL_"+partid);
   my $handgrade = ($allkeys =~ /parameter_.*?_handgrade/ ? 'yes' : 'no');   if (point == "textval") {
   my ($responsetype,$foo) = split(/_/,&Apache::lonnet::metadata($url,'packages'));      var point = eval("document.classgrade.TEXTVAL_"+partid+".value");
       if (isNaN(point) || point < 0) {
   my $result='<h2>&nbsp;<font color="#339933">Select a Grading Method</font></h2>';   alert("A number equal or greater than 0 is expected. Entered value = "+point);
   $result.='<table border="0">';   var resetbox = false;
   $result.='<tr><td><font size=+1><b>Resource: </b></font></td>'.   for (var i=0; i<radioButton.length; i++) {
       '<td><font size=+1>'.$url.'</font></td></tr>';      if (radioButton[i].checked) {
   $result.='<tr><td><font size=+1><b>Type: </b></font></td>'.   textbox.value = i;
       '<td><font size=+1>'.$responsetype.'&nbsp;&nbsp;<b>Handgrade: </b>'.$handgrade.'</font></td></tr>';   resetbox = true;
   $result.='</table>';      }
    }
   $result.=&view_edit_entire_class_form($symb,$url).'<br />';   if (!resetbox) {
   $result.=&upcsvScores_form($symb,$url).'<br />';      textbox.value = "";
   $result.=&viewGradeaStu_form($symb,$url,$responsetype,$handgrade).'<br />';   }
   $result.=&verifyReceipt_form($symb,$url);   return;
   return $result;      }
 }      if (point > weight) {
    var resp = confirm("You entered a value ("+point+
      ") greater than the weight for the part. Accept?");
    if (resp == false) {
       textbox.value = "";
       return;
    }
       }
       for (var i=0; i<radioButton.length; i++) {
    radioButton[i].checked=false;
    if (point == i) {
       radioButton[i].checked=true;
    }
       }
   
 sub view_edit_entire_class_form {   } else {
   my ($symb,$url)=@_;      textbox.value = point;
   my $result.='<table width=100% border=0><tr><td bgcolor=#777777>'."\n";   }
   $result.='<table width=100% border=0><tr bgcolor="#e6ffff"><td>'."\n";   for (i=0;i<document.classgrade.total.value;i++) {
   $result.='&nbsp;<b>View/Grade Entire Class</b></td></tr>'."\n";      var user = eval("document.classgrade.ctr"+i+".value");
   $result.='<tr bgcolor=#ffffe6><td>'."\n";      var scorename = eval("document.classgrade.GD_"+user+
   $result.='<form action="/adm/grades" method="post">'."\n".   "_"+partid+"_awarded");
     '<input type="hidden" name="symb" value="'.$symb.'" />'."\n".      var saveval   = eval("document.classgrade.GD_"+user+
       '<input type="hidden" name="url" value="'.$url.'" />'."\n".   "_"+partid+"_solved_s.value");
   '<input type="hidden" name="command" value="viewgrades" />'."\n";      var selname   = eval("document.classgrade.GD_"+user+"_"+partid+"_solved");
   $result.='&nbsp;<b>Display students who has: </b>'.      if (saveval != "correct") {
       '<input type="radio" name="submitonly" value="yes" checked> submitted'.   scorename.value = point;
   '<input type="radio" name="submitonly" value="all"> everybody <br /><br />';   if (selname[0].selected != true) {
   $result.='&nbsp;<input type="submit" name="submit" value="View/Grade" /></form>'."\n";      selname[0].selected = true;
   $result.='</td></tr></table>'."\n";   }
   $result.='</td></tr></table>'."\n";      }
   return $result;   }
 }   var selval   = eval("document.classgrade.SELVAL_"+partid);
    selval[0].selected = true;
       }
   
 sub upcsvScores_form {      function writeRadText(partid,weight) {
   my ($symb,$url) = @_;   var selval   = eval("document.classgrade.SELVAL_"+partid);
   if (!$symb) {return '';}   var radioButton = eval("document.classgrade.RADVAL_"+partid);
   my $result.='<table width=100% border=0><tr><td bgcolor=#777777>'."\n";   var textbox = eval("document.classgrade.TEXTVAL_"+partid);
   $result.='<table width=100% border=0><tr bgcolor="#e6ffff"><td>'."\n";   if (selval[1].selected) {
   $result.='&nbsp;<b>Specify a file containing the class scores for above resource</b></td></tr>'."\n";      for (var i=0; i<radioButton.length; i++) {
   $result.='<tr bgcolor=#ffffe6><td>'."\n";   radioButton[i].checked=false;
   my $upfile_select=&Apache::loncommon::upfile_select_html();  
   $result.=<<ENDUPFORM;      }
 <form method="post" enctype="multipart/form-data" action="/adm/grades" name="gradesupload">      textbox.value = "";
 <input type="hidden" name="symb" value="$symb" />  
 <input type="hidden" name="url" value="$url" />      for (i=0;i<document.classgrade.total.value;i++) {
 <input type="hidden" name="command" value="csvuploadmap" />   var user = eval("document.classgrade.ctr"+i+".value");
 $upfile_select   var scorename = eval("document.classgrade.GD_"+user+
 <br />&nbsp;<input type="submit" name="submit" value="Upload Grades" />       "_"+partid+"_awarded");
 </form>   var saveval   = eval("document.classgrade.GD_"+user+
 ENDUPFORM       "_"+partid+"_solved_s.value");
   $result.='</td></tr></table>'."\n";   var selname   = eval("document.classgrade.GD_"+user+
   $result.='</td></tr></table>'."\n";       "_"+partid+"_solved");
   return $result;   if (saveval != "correct") {
 }      scorename.value = "";
       selname[1].selected = true;
    }
       }
    } else {
       for (i=0;i<document.classgrade.total.value;i++) {
    var user = eval("document.classgrade.ctr"+i+".value");
    var scorename = eval("document.classgrade.GD_"+user+
        "_"+partid+"_awarded");
    var saveval   = eval("document.classgrade.GD_"+user+
        "_"+partid+"_solved_s.value");
    var selname   = eval("document.classgrade.GD_"+user+
        "_"+partid+"_solved");
    if (saveval != "correct") {
       scorename.value = eval("document.classgrade.GD_"+user+
        "_"+partid+"_awarded_s.value");;
       selname[0].selected = true;
    }
       }
    }    
       }
   
       function changeSelect(partid,user) {
    var selval = eval("document.classgrade.GD_"+user+'_'+partid+"_solved");
    var textbox = eval("document.classgrade.GD_"+user+'_'+partid+"_awarded");
    var point  = textbox.value;
    var weight = eval("document.classgrade.weight_"+partid+".value");
   
    if (isNaN(point) || point < 0) {
       alert("A number equal or greater than 0 is expected. Entered value = "+point);
       textbox.value = "";
       return;
    }
    if (point > weight) {
       var resp = confirm("You entered a value ("+point+
          ") greater than the weight of the part. Accept?");
       if (resp == false) {
    textbox.value = "";
    return;
       }
    }
    selval[0].selected = true;
       }
   
 sub viewGradeaStu_form {      function changeOneScore(partid,user) {
   my ($symb,$url,$response,$handgrade) = @_;   var selval = eval("document.classgrade.GD_"+user+'_'+partid+"_solved");
   my ($classlist,$sections) = &getclasslist('all','0');   if (selval[1].selected) {
   my $result.='<table width=100% border=0><tr><td bgcolor=#777777>'."\n";      var boxval = eval("document.classgrade.GD_"+user+'_'+partid+"_awarded");
   $result.='<table width=100% border=0><tr bgcolor="#e6ffff"><td>'."\n";      boxval.value = "";
   $result.='&nbsp;<b>View/Grade an Individual Student\'s Submission</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="'.$url.'" />'."\n".  
        '<input type="hidden" name="response" value="'.$response.'" />'."\n".  
         '<input type="hidden" name="handgrade" value="'.$handgrade.'" />'."\n".  
  '<input type="hidden" name="command" value="submission" />'."\n";  
   
   $result.='&nbsp;<b>Select section:</b> <select name="section">'."\n";  
   foreach my $section (sort (@$sections)) {  
       $result.= '<option>'.$section.'</option>'."\n";  
   }  
   $result.= '<option selected="on">all</select>'."\n";  
   $result.='&nbsp;&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 />';  
   $result.='&nbsp;(Section "no" implies the students were not assigned a section.)<br />'   
       if (grep /no/,@$sections);  
   
   $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 {      function resetEntry(numpart) {
   my ($symb,$url) = @_;   for (ctpart=0;ctpart<numpart;ctpart++) {
   my $cdom=$ENV{"course.$ENV{'request.course.id'}.domain"};      var partid = eval("document.classgrade.partid_"+ctpart+".value");
   my $cnum=$ENV{"course.$ENV{'request.course.id'}.num"};      var radioButton = eval("document.classgrade.RADVAL_"+partid);
   my $hostver=unpack("%32C*",$Apache::lonnet::perlvar{'lonHostID'});      var textbox = eval("document.classgrade.TEXTVAL_"+partid);
       var selval  = eval("document.classgrade.SELVAL_"+partid);
   my $result.='<table width=100% border=0><tr><td bgcolor=#777777>'."\n";      for (var i=0; i<radioButton.length; i++) {
   $result.='<table width=100% border=0><tr><td bgcolor=#e6ffff>'."\n";   radioButton[i].checked=false;
   $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";      textbox.value = "";
   $result.='&nbsp;<tt>'.$hostver.'-<input type="text" name="receipt" size="4"></tt><br />'."\n";      selval[0].selected = true;
   $result.='&nbsp;<input type="submit" name="submit" value="Verify Receipt">'."\n";  
   $result.='<input type="hidden" name="command" value="verify">'."\n";      for (i=0;i<document.classgrade.total.value;i++) {
   if ($ENV{'form.url'}) {   var user = eval("document.classgrade.ctr"+i+".value");
       $result.='<input type="hidden" name="url" value="'.$ENV{'form.url'}.'" />';   var resetscore = eval("document.classgrade.GD_"+user+
   }        "_"+partid+"_awarded");
   if ($ENV{'form.symb'}) {   resetscore.value = eval("document.classgrade.GD_"+user+
       $result.='<input type="hidden" name="symb" value="'.$ENV{'form.symb'}.'" />';   "_"+partid+"_awarded_s.value");
   }  
   $result.='</form>';   var saveselval   = eval("document.classgrade.GD_"+user+
   $result.='</td></tr></table>'."\n";       "_"+partid+"_solved_s.value");
   $result.='</td></tr></table>'."\n";  
   return $result;   var selname   = eval("document.classgrade.GD_"+user+"_"+partid+"_solved");
    if (saveselval == "excused") {
       if (selname[1].selected == false) { selname[1].selected = true;}
    } else {
       if (selname[0].selected == false) {selname[0].selected = true};
    }
       }
    }
       }
   
   </script>
   VIEWJAVASCRIPT
 }  }
   
   #--- show scores for a section or whole class w/ option to change/update a score
 sub viewgrades {  sub viewgrades {
   my ($request) = @_;      my ($request) = shift;
   my $result='';      &viewgrades_js($request);
   
       my ($symb,$url) = ($ENV{'form.symb'},$ENV{'form.url'}); 
       my $result='<h3><font color="#339933">Manual Grading</font></h3>';
   
   #get resource reference      $result.='<font size=+1><b>Resource: </b>'.$ENV{'form.url'}.'</font>'."\n";
   my ($symb,$url)=&get_symb_and_url($request);  
   if (!$symb) {return '';}      #view individual student submission form - called using Javascript viewOneStudent
   #get classlist      $result.=&jscriptNform($url,$symb);
   my ($cdom,$cnum) = split(/_/,$ENV{'request.course.id'});  
   #print "Found $cdom:$cnum<br />";      #beginning of class grading form
   my ($classlist) = &getclasslist('all','0');      $result.= '<form action="/adm/grades" method="post" name="classgrade">'."\n".
   my $headerclr = '"#ccffff"';   '<input type="hidden" name="symb"    value="'.$symb.'" />'."\n".
   my $cellclr = '"#ffffcc"';   '<input type="hidden" name="url"     value="'.$url.'" />'."\n".
   
   #get list of parts for this problem  
   my (@parts) = sort(&getpartlist($url));  
   
   $request->print ("<h2><font color=\"#339933\">Manual Grading</font></h2>");  
   
   #start the form  
   $result = '<form action="/adm/grades" method="post">'."\n".  
     '<input type="hidden" name="symb" value="'.$symb.'" />'."\n".  
       '<input type="hidden" name="url" value="'.$url.'" />'."\n".  
  '<input type="hidden" name="command" value="editgrades" />'."\n".   '<input type="hidden" name="command" value="editgrades" />'."\n".
   '<input type="submit" name="submit" value="Submit Changes" />'."\n".   '<input type="hidden" name="section" value="'.$ENV{'form.section'}.'" />'."\n";
     '<table border=0><tr><td bgcolor="#777777">'."\n".      $result.='<h3>Assign Common Grade To ';
      '<table border=0>'."\n".      if ($ENV{'form.section'} eq 'all') {
       '<tr bgcolor='.$headerclr.'><td><b>Username</b></td><td><b>Name</b></td><td><b>Domain</b></td>'."\n";   $result.='Class </h3>';
   foreach my $part (@parts) {      } elsif ($ENV{'form.section'} eq 'no') {
      my $display=&Apache::lonnet::metadata($url,$part.'.display');   $result.='Students in no Section </h3>';
      if  (!$display) { $display = &Apache::lonnet::metadata($url,$part.'.name'); }      } else {
      $result.='<td><b>'.$display.'</b></td>'."\n";   $result.='Students in Section '.$ENV{'form.section'}.'</h3>';
   }      }
   $result.='</tr>';      $result.= '<table border=0><tr><td bgcolor="#777777">'."\n".
   #get info for each student   '<table border=0><tr bgcolor="#ffffdd"><td>';
   foreach my $student ( sort(@{ $$classlist{'all'} }) ) {  #    $result.='To assign the same score for all the students use the radio buttons or '.
     my $display=&viewstudentgrade($url,$symb,$ENV{'request.course.id'},$student,@parts);  # 'text box below. To assign scores individually fill in the score boxes for '.
 #      print "ID=$ENV{'request.course.id'}:STU=$student:DIS=$display:<br>\n";  # 'each student in the table below. <font color="red">A part that has already '.
     $result.=&viewstudentgrade($url,$symb,$ENV{'request.course.id'},$student,@parts);  # 'been graded does not get changed using the radio buttons or text box. '.
   }  # 'If needed, it has to be changed individually.</font>';
   $result.='</table></td></tr></table>';  #    $result.='</td></tr><tr><td>';
   $result.='<input type="submit" name="submit" value="Submit Changes" /></form>';      #radio buttons/text box for assigning points for a section or class.
   $result.=&show_grading_menu_form($symb,$url);      #handles different parts of a problem
   return $result;      my ($partlist,$handgrade) = &response_type($ENV{'form.url'});
       my %weight = ();
       my $ctsparts = 0;
       $result.='<table border="0">';
       my %seen = ();
       for (sort keys(%$handgrade)) {
    my ($partid,$respid) = split (/_/,$_,2);
    next if $seen{$partid};
    $seen{$partid}++;
    my ($responsetype,$handgrade)=split(/:/,$$handgrade{$_});
    my $wgt = &Apache::lonnet::EXT('resource.'.$partid.'.weight',$symb);
    $weight{$partid} = $wgt eq '' ? '1' : $wgt;
   
    $result.='<input type="hidden" name="partid_'.
       $ctsparts.'" value="'.$partid.'" />'."\n";
    $result.='<input type="hidden" name="weight_'.
       $partid.'" value="'.$weight{$partid}.'" />'."\n";
    $result.='<tr><td><b>Part  '.$partid.'&nbsp; &nbsp;Point:</b> </td><td>';
    $result.='<table border="0"><tr>';  
    my $ctr = 0;
    while ($ctr<=$weight{$partid}) { # display radio buttons in a nice table 10 across
       $result.= '<td><input type="radio" name="RADVAL_'.$partid.'" '.
    'onclick="javascript:writePoint(\''.$partid.'\','.$weight{$partid}.
    ','.$ctr.')" />'.$ctr."</td>\n";
       $result.=(($ctr+1)%10 == 0 ? '</tr><tr>' : '');
       $ctr++;
    }
    $result.='</tr></table>';
    $result.= '</td><td><b> or </b><input type="text" name="TEXTVAL_'.
       $partid.'" size="4" '.'onChange="javascript:writePoint(\''.
    $partid.'\','.$weight{$partid}.',\'textval\')" /> /'.
       $weight{$partid}.' (problem weight)</td>'."\n";
    $result.= '</td><td><select name="SELVAL_'.$partid.'"'.
       'onChange="javascript:writeRadText(\''.$partid.'\','.
    $weight{$partid}.')" /> '.
       '<option selected="on"> </option>'.
       '<option>excused</option></select></td></tr>'."\n";
    $ctsparts++;
       }
       $result.='</table>'.'</td></tr></table>'.'</td></tr></table>'."\n".
    '<input type="hidden" name="totalparts" value="'.$ctsparts.'" />';
       $result.='<input type="button" value="Reset" '.
    'onClick="javascript:resetEntry('.$ctsparts.');" TARGET=_self> &nbsp; &nbsp;';
       $result.='<input type="button" value="Submit Changes" '.
    'onClick="javascript:submit();" TARGET=_self />'."\n";
   
       #table listing all the students in a section/class
       #header of table
       $result.= '<h3>Assign Grade to Specific Students in ';
       if ($ENV{'form.section'} eq 'all') {
    $result.='the Class </h3>';
       } elsif ($ENV{'form.section'} eq 'no') {
    $result.='no Section </h3>';
       } else {
    $result.='Section '.$ENV{'form.section'}.'</h3>';
       }
       $result.= '<table border=0><tr><td bgcolor="#777777">'."\n".
    '<table border=0><tr bgcolor="#deffff">'.
    '<td><b>Fullname</b></td><td><b>Username</b></td><td><b>Domain</b></td>'."\n";
       my (@parts) = sort(&getpartlist($url));
       foreach my $part (@parts) {
    my $display=&Apache::lonnet::metadata($url,$part.'.display');
    if  (!$display) { $display = &Apache::lonnet::metadata($url,$part.'.name'); }
    if ($display =~ /^Partial Credit Factor/) {
       my ($partid) = &split_part_type($part);
       $result.='<td><b>Score Part '.$partid.'<br />(weight = '.
    $weight{$partid}.')</b></td>'."\n";
       next;
    }
    $display =~ s|Problem Status|Grade Status<br />|;
    $result.='<td><b>'.$display.'</b></td>'."\n";
       }
       $result.='</tr>';
   
       #get info for each student
       #list all the students - with points and grade status
       my (undef,undef,$fullname) = &getclasslist($ENV{'form.section'},'0');
       my $ctr = 0;
       foreach (sort {lc($$fullname{$a}) cmp lc($$fullname{$b}) } keys %$fullname) {
    my ($uname,$udom) = split(/:/);
    $result.='<input type="hidden" name="ctr'.$ctr.'" value="'.$uname.'" />'."\n";
    $result.=&viewstudentgrade($url,$symb,$ENV{'request.course.id'},
      $_,$$fullname{$_},\@parts,\%weight);
    $ctr++;
       }
       $result.='</table></td></tr></table>';
       $result.='<input type="hidden" name="total" value="'.$ctr.'" />'."\n";
       $result.='<input type="button" value="Submit Changes" '.
    'onClick="javascript:submit();" TARGET=_self /></form>'."\n";
       $result.=&show_grading_menu_form($symb,$url);
       return $result;
 }  }
   
   #--- call by previous routine to display each student
   sub viewstudentgrade {
       my ($url,$symb,$courseid,$student,$fullname,$parts,$weight) = @_;
       my ($uname,$udom) = split(/:/,$student);
       my %record=&Apache::lonnet::restore($symb,$courseid,$udom,$uname);
       my $result='<tr bgcolor="#ffffdd"><td>'.
    '<a href="javascript:viewOneStudent(\''.$uname.'\',\''.$udom.
    '\')"; TARGET=_self>'.$fullname.'</a>'.
    '</td><td>'.$uname.'</td><td align="middle">'.$udom.'</td>'."\n";
       foreach my $part (@$parts) {
    my ($part,$type) = &split_part_type($part);
    my $score=$record{"resource.$part.$type"};
    if ($type eq 'awarded') {
       my $pts = $score eq '' ? '' : $score*$$weight{$part};
       $result.='<input type="hidden" name="'.
    'GD_'.$uname.'_'.$part.'_awarded_s" value="'.$pts.'" />'."\n";
       $result.='<td align="middle"><input type="text" name="'.
    'GD_'.$uname.'_'.$part.'_awarded" '.
    'onChange="javascript:changeSelect(\''.$part.'\',\''.$uname.
    '\')" value="'.$pts.'" size="4" /></td>'."\n";
    } elsif ($type eq 'solved') {
       my ($status,$foo)=split(/_/,$score,2);
       $status = 'nothing' if ($status eq '');
       $result.='<input type="hidden" name="'.'GD_'.$uname.'_'.
    $part.'_solved_s" value="'.$status.'" />'."\n";
       $result.='<td align="middle"><select name="'.
    'GD_'.$uname.'_'.$part.'_solved" '.
    'onChange="javascript:changeOneScore(\''.$part.'\',\''.$uname.'\')" >'."\n";
       my $optsel = '<option selected="on"> </option><option>excused</option>'."\n";
       $optsel = '<option> </option><option selected="on">excused</option>'."\n"
    if ($status eq 'excused');
       $result.=$optsel;
       $result.="</select></td>\n";
    } else {
       $result.='<input type="hidden" name="'.
    'GD_'.$uname.'_'.$part.'_'.$type.'_s" value="'.$score.'" />'.
       "\n";
       $result.='<td align="middle"><input type="text" name="'.
    'GD_'.$uname.'_'.$part.'_'.$type.'" '.
    'value="'.$score.'" size="4" /></td>'."\n";
    }
       }
       $result.='</tr>';
       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 $result='';  
   
   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>';
   #get classlist      $title.='<font size=+1><b>Resource: </b>'.$ENV{'form.url'}.'</font><br />'."\n";
 #  my ($cdom,$cnum) = split(/_/,$ENV{'request.course.id'});      $title.='<font size=+1><b>Section: </b>'.$ENV{'form.section'}.'</font>'."\n";
   #print "Found $cdom:$cnum<br />";      $title.= &show_grading_menu_form ($symb,$url);
   my ($classlist) = &getclasslist('all','0');      my $result= '<table border="0"><tr><td bgcolor="#777777">'."\n";
       $result.= '<table border="0"><tr bgcolor="#deffff">'.
   #get list of parts for this problem   '<td rowspan=2><b>Username</b></td><td rowspan=2><b>Fullname</b></td>'."\n";
   my (@parts) = &getpartlist($url);  
       my %scoreptr = (
   $result.='<form action="/adm/grades" method="post">'."\n".      'correct'  =>'correct_by_override',
     '<input type="hidden" name="symb" value="'.$symb.'" />'."\n".      'incorrect'=>'incorrect_by_override',
       '<input type="hidden" name="url" value="'.$url.'" />'."\n".      'excused'  =>'excused',
  '<input type="hidden" name="command" value="viewgrades" />'."\n".      'ungraded' =>'ungraded_attempted',
   '<input type="submit" name="submit" value="See Grades" /> <br />'."\n";      'nothing'  => '',
       );
       my ($classlist,undef,$fullname) = &getclasslist($ENV{'form.section'},'0');
   
       my (@partid);
       my %weight = ();
       my %columns = ();
       my ($i,$ctr,$count,$rec_update) = (0,0,0,0);
   
       my (@parts) = sort(&getpartlist($url));
       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/\[Part: (\w)+\]//;
       $header .= '<td align="center">&nbsp;<b>Old</b> '.$display.'&nbsp;</td>'.
    '<td align="center">&nbsp;<b>New</b> '.$display.'&nbsp;</td>';
       $columns{$partid}+=2;
    }
       }
       foreach my $partid (@partid) {
    $result .= '<td colspan="'.$columns{$partid}.
       '" align="center"><b>Part '.$partid.
       '</b> (Weight = '.$weight{$partid}.')</td>';
   
       }
       $result .= '</tr><tr bgcolor="#deffff">';
       $result .= $header;
       $result .= '</tr>'."\n";
   
       for ($i=0; $i<$ENV{'form.total'}; $i++) {
    my $user = $ENV{'form.ctr'.$i};
    my %newrecord;
    my $updateflag = 0;
    my @userdom = grep /^$user:/,keys %$classlist;
    my (undef,$udom) = split(/:/,$userdom[0]);
   
    $result .= '<tr bgcolor="#ffffde"><td>'.$user.'&nbsp;</td><td>'.
       $$fullname{$userdom[0]}.'&nbsp;</td>';
    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';
       }
       $score = 'excused' if (($ENV{'form.GD_'.$user.'_'.$_.'_solved'} eq 'excused') &&
      ($score ne 'excused'));
       $result .= '<td align="center">'.$old_aw.'&nbsp;</td>'.
    '<td align="center">'.$awarded.
    ($score eq 'excused' ? $score : '').'&nbsp;</td>';
   
       if (!($old_part eq $partial && $old_score eq $score)) {
    $updateflag = 1;
    $newrecord{'resource.'.$_.'.awarded'}  = $partial if $partial ne '';
    $newrecord{'resource.'.$_.'.solved'}   = $score;
    $rec_update++;
       }
   
       my $partid=$_;
       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 $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;
       $updateflag=1;
    }
    $result .= '<td align="center">'.$old_aw.'&nbsp;</td>'.
       '<td align="center">'.$awarded.'&nbsp;</td>';
       }
    }
    $result .= '</tr>'."\n";
    if ($updateflag) {
       $count++;
       $newrecord{'resource.regrader'}="$ENV{'user.name'}:$ENV{'user.domain'}";
       &Apache::lonnet::cstore(\%newrecord,$symb,$ENV{'request.course.id'},
       $udom,$user);
    }
       }
       $result .= '</table></td></tr></table>'."\n";
       my $msg = '<b>Number of records updated = '.$rec_update.
    ' for '.$count.' student'.($count <= 1 ? '' : 's').'.</b><br />'.
    '<b>Total number of students = '.$ENV{'form.total'}.'</b><br />';
       return $title.$msg.$result;
   }
   
   sub split_part_type {
       my ($partstr) = @_;
       my ($temp,@allparts)=split(/_/,$partstr);
       my $type=pop(@allparts);
       my $part=join('.',@allparts);
       return ($part,$type);
   }
   
   foreach my $student ( sort(@{ $$classlist{'all'} }) ) {  #------------- end of section for handling grading by section/class ---------
     $result.=&setstudentgrade($url,$symb,$ENV{'request.course.id'},$student,@parts);  #
   }  #----------------------------------------------------------------------------
   
   $result.='<input type="submit" name="submit" value="See Grades" /></table></form>';  
   return $result;  
 }  
   
   #----------------------------------------------------------------------------
   #
   #-------------------------- Next few routines handles grading by csv upload
   #
   #--- Javascript to handle csv upload
 sub csvupload_javascript_reverse_associate {  sub csvupload_javascript_reverse_associate {
   return(<<ENDPICK);    return(<<ENDPICK);
   function verify(vf) {    function verify(vf) {
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 }  }
   
 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();      }
   }  
   $request->print(<<ENDPICK);      my $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');
    $result.='<tr><td><b>Part </b>'.(split(/_/))[0].'</td>'.
       '<td><b>Type: </b>'.$responsetype.'</td>'.
       '<td><b>Handgrade: </b>'.$handgrade.'</font></td></tr>';
       }
       $result.='</table>';
       $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 />
Line 1359  to this page if the data selected is ins Line 2000  to this page if the data selected is ins
 $javascript  $javascript
 </script>  </script>
 ENDPICK  ENDPICK
   return '';  return '';
   
 }  }
   
 sub csvupload_fields {  sub csvupload_fields {
   my ($url) = @_;      my ($url) = @_;
   my (@parts) = &getpartlist($url);      my (@parts) = &getpartlist($url);
   my @fields=(['username','Student Username'],['domain','Student Domain']);      my @fields=(['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);
     push(@fields,\@datum);   push(@fields,\@datum);
   }      }
   return (@fields);      return (@fields);
 }  }
   
 sub csvuploadmap_footer {  sub csvuploadmap_footer {
   my ($request,$i,$keyfields) =@_;      my ($request,$i,$keyfields) =@_;
   $request->print(<<ENDPICK);      $request->print(<<ENDPICK);
 </table>  </table>
 <input type="hidden" name="nfields" value="$i" />  <input type="hidden" name="nfields" value="$i" />
 <input type="hidden" name="keyfields" value="$keyfields" />  <input type="hidden" name="keyfields" value="$keyfields" />
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 }  }
   
 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 {  
     $datatoken=$ENV{'form.datatoken'};  
     &Apache::loncommon::load_tmp_file($request);  
   }  
   my @records=&Apache::loncommon::upfile_record_sep();  
   &csvuploadmap_header($request,$symb,$url,$datatoken,$#records+1);  
   my $i;  
   my $keyfields;  
   if (@records) {  
     my @fields=&csvupload_fields($url);  
     if ($ENV{'form.upfile_associate'} eq 'reverse') {  
       &Apache::loncommon::csv_print_samples($request,\@records);  
       $i=&Apache::loncommon::csv_print_select_table($request,\@records,  
     \@fields);  
       foreach (@fields) { $keyfields.=$_->[0].','; }  
       chop($keyfields);  
     } else {      } else {
       unshift(@fields,['none','']);   $datatoken=$ENV{'form.datatoken'};
       $i=&Apache::loncommon::csv_samples_select_table($request,\@records,   &Apache::loncommon::load_tmp_file($request);
       \@fields);  
       my %sone=&Apache::loncommon::record_sep($records[0]);  
       $keyfields=join(',',sort(keys(%sone)));  
     }      }
   }      my @records=&Apache::loncommon::upfile_record_sep();
   &csvuploadmap_footer($request,$i,$keyfields);      &csvuploadmap_header($request,$symb,$url,$datatoken,$#records+1);
   return '';      my ($i,$keyfields);
       if (@records) {
    my @fields=&csvupload_fields($url);
   
    if ($ENV{'form.upfile_associate'} eq 'reverse') {
       &Apache::loncommon::csv_print_samples($request,\@records);
       $i=&Apache::loncommon::csv_print_select_table($request,\@records,
     \@fields);
       foreach (@fields) { $keyfields.=$_->[0].','; }
       chop($keyfields);
    } else {
       unshift(@fields,['none','']);
       $i=&Apache::loncommon::csv_samples_select_table($request,\@records,
       \@fields);
       my %sone=&Apache::loncommon::record_sep($records[0]);
       $keyfields=join(',',sort(keys(%sone)));
    }
       }
       &csvuploadmap_footer($request,$i,$keyfields);
       return '';
 }  }
   
 sub csvuploadassign {  sub csvuploadassign {
   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 '';}
   &Apache::loncommon::load_tmp_file($request);      &Apache::loncommon::load_tmp_file($request);
   my @gradedata=&Apache::loncommon::upfile_record_sep();      my @gradedata = &Apache::loncommon::upfile_record_sep();
   my @keyfields = split(/\,/,$ENV{'form.keyfields'});      my @keyfields = split(/\,/,$ENV{'form.keyfields'});
   my %fields=();      my %fields=();
   for (my $i=0; $i<=$ENV{'form.nfields'}; $i++) {      for (my $i=0; $i<=$ENV{'form.nfields'}; $i++) {
     if ($ENV{'form.upfile_associate'} eq 'reverse') {   if ($ENV{'form.upfile_associate'} eq 'reverse') {
       if ($ENV{'form.f'.$i} ne 'none') {      if ($ENV{'form.f'.$i} ne 'none') {
  $fields{$keyfields[$i]}=$ENV{'form.f'.$i};   $fields{$keyfields[$i]}=$ENV{'form.f'.$i};
       }      }
    } else {
       if ($ENV{'form.f'.$i} ne 'none') {
    $fields{$ENV{'form.f'.$i}}=$keyfields[$i];
       }
    }
       }
       $request->print('<h3>Assigning Grades</h3>');
       my $courseid=$ENV{'request.course.id'};
       my ($classlist) = &getclasslist('all','1');
       my @skipped;
       my $countdone=0;
       foreach my $grade (@gradedata) {
    my %entries=&Apache::loncommon::record_sep($grade);
    my $username=$entries{$fields{'username'}};
    my $domain=$entries{$fields{'domain'}};
    if (!exists($$classlist{"$username:$domain"})) {
       push(@skipped,"$username:$domain");
       next;
    }
    my %grades;
    foreach my $dest (keys(%fields)) {
       if ($dest eq 'username' || $dest eq 'domain') { next; }
       if ($entries{$fields{$dest}} eq '') { 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'}:$ENV{'user.domain'}";
    &Apache::lonnet::cstore(\%grades,$symb,$ENV{'request.course.id'},
    $domain,$username);
    $request->print('.');
    $request->rflush();
    $countdone++;
       }
       $request->print("<br />Stored $countdone students\n");
       if (@skipped) {
    $request->print('<br /><font size="+1"><b>Skipped Students</b></font><br />');
    foreach my $student (@skipped) { $request->print("<br />$student"); }
       }
       $request->print(&view_edit_entire_class_form($symb,$url));
       $request->print(&show_grading_menu_form($symb,$url));
       return '';
   }
   #------------- end of section for handling csv file upload ---------
   #
   #-------------------------------------------------------------------
   
   #-------------------------- Menu interface -------------------------
   #
   #--- Show a Grading Menu button - Calls the next routine ---
   sub show_grading_menu_form {
       my ($symb,$url)=@_;
       my $result.='<form action="/adm/grades" method="post">'."\n".
    '<input type="hidden" name="symb" value="'.$symb.'" />'."\n".
    '<input type="hidden" name="url" value="'.$url.'" />'."\n".
    '<input type="hidden" name="command" value="gradingmenu" />'."\n".
    '<input type="submit" name="submit" value="Grading Menu" />'."\n".
    '</form>'."\n";
       return $result;
   }
   
   #--- Displays the main menu page -------
   sub gradingmenu {
       my ($request) = @_;
       my ($symb,$url)=&get_symb_and_url($request);
       if (!$symb) {return '';}
       my $result='<h3>&nbsp;<font color="#339933">Select a Grading Method</font></h3>';
       $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');
    $result.='<tr><td><b>Part </b>'.(split(/_/))[0].'</td>'.
       '<td><b>Type: </b>'.$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,$url) 
    if ((&Apache::lonnet::allowed('mgr',$ENV{'request.course.id'})) && ($symb));
    
       return $result;
   }
   
   #--- Menu for grading a section or the whole class ---
   sub view_edit_entire_class_form {
       my ($symb,$url)=@_;
       my ($classlist,$sections,undef) = &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>Grade Entire Section or 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";
       $result.='&nbsp;<b>Select section:</b> <select name="section">'."\n";
       if (ref($sections)) {
    foreach (sort (@$sections)) {
       $result.= '<option>'.$_.'</option>'."\n";
    }
       }
       $result.='<option selected="on">all</select>'."<br />\n";
       $result.='&nbsp;<input type="button" onClick="submit();" value="Grade" /></form>'."\n";
       $result.='</td></tr></table>'."\n";
       $result.='</td></tr></table>'."\n";
       return $result;
   }
   
   #--- Menu to upload a csv scores ---
   sub upcsvScores_form {
       my ($symb,$url) = @_;
       if (!$symb) {return '';}
       my $result = '<script type="text/javascript" language="javascript">'."\n".
    '  function checkUpload(formname) {'."\n".
    '    if (formname.upfile.value == "") {'."\n".
    '       alert("Please use the browse button to select a file from your local directory.");'."\n".
    '       return false;'."\n".
    '    }'."\n".
    '    formname.submit();'."\n".
    '  }'."\n".
    '</script>'."\n";
   
       $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>Specify a file containing the class scores for above resource</b></td></tr>'."\n";
       $result.='<tr bgcolor=#ffffe6><td>'."\n";
       my $upfile_select=&Apache::loncommon::upfile_select_html();
     $result.=<<ENDUPFORM;
   <form method="post" enctype="multipart/form-data" action="/adm/grades" name="gradesupload">
   <input type="hidden" name="symb" value="$symb" />
   <input type="hidden" name="url" value="$url" />
   <input type="hidden" name="command" value="csvuploadmap" />
   $upfile_select
   <br />&nbsp;<input type="button" onClick="javascript:checkUpload(this.form);" value="Upload Grades" />
   </form>
   ENDUPFORM
       $result.='</td></tr></table>'."\n";
       $result.='</td></tr></table>'."\n";
       return $result;
   }
   
   #--- Handgrading problems ---
   sub viewGradeaStu_form {
       my ($symb,$url,$response,$handgrade) = @_;
       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";
       $result.='&nbsp;<b>';
       if ($handgrade eq 'yes') {
    $result.="View/Grade ";
     } else {      } else {
       if ($ENV{'form.f'.$i} ne 'none') {   $result.="View ";
  $fields{$ENV{'form.f'.$i}}=$keyfields[$i];  
       }  
     }      }
   }      $result.='an Individual Student\'s Submission</b></td></tr>'."\n";
   $request->print('<h3>Assigning Grades</h3>');      $result.='<tr bgcolor=#ffffe6><td>'."\n";
   my $courseid=$ENV{'request.course.id'};      $result.='<form action="/adm/grades" method="post">'."\n".
 #  my $cdom=$ENV{"course.$courseid.domain"};   '<input type="hidden" name="symb" value="'.$symb.'" />'."\n".
 #  my $cnum=$ENV{"course.$courseid.num"};   '<input type="hidden" name="url" value="'.$url.'" />'."\n".
   my ($classlist) = &getclasslist('all','1');   '<input type="hidden" name="response" value="'.$response.'" />'."\n".
   my @skipped;   '<input type="hidden" name="handgrade" value="'.$handgrade.'" />'."\n".
   my $countdone=0;   '<input type="hidden" name="showgrading" value="yes" />'."\n".
   foreach my $grade (@gradedata) {   '<input type="hidden" name="command" value="submission" />'."\n";
     my %entries=&Apache::loncommon::record_sep($grade);  
     my $username=$entries{$fields{'username'}};      $result.='&nbsp;<b>Select section:</b> <select name="section">'."\n";
     my $domain=$entries{$fields{'domain'}};      if (ref($sections)) {
     if (!exists($$classlist{"$username:$domain"})) {   foreach (sort (@$sections)) {$result.='<option>'.$_.'</option>'."\n";}
       push(@skipped,"$username:$domain");      }
       next;      $result.= '<option selected="on">all</select>'."\n";
     }      $result.='&nbsp;&nbsp;<b>Display students who has: </b>'.
     my %grades;   '<input type="radio" name="submitonly" value="yes" checked> submitted'.
     foreach my $dest (keys(%fields)) {   '<input type="radio" name="submitonly" value="all"> everybody <br />';
       if ($dest eq 'username' || $dest eq 'domain') { next; }      if (ref($sections)) {
       if ($entries{$fields{$dest}} eq '') { next; }   $result.='&nbsp;(Section "no" implies the students were not assigned a section.)<br />' 
       my $store_key=$dest;      if (grep /no/,@$sections);
       $store_key=~s/^stores/resource/;      }
       $store_key=~s/_/\./g;  
       $grades{$store_key}=$entries{$fields{$dest}};  
     }      $result.='<br />&nbsp;<input type="button" onClick="submit();" value="';
     $grades{"resource.regrader"}="$ENV{'user.name'}:$ENV{'user.domain'}";      if ($handgrade eq 'yes') {
     &Apache::lonnet::cstore(\%grades,$symb,$ENV{'request.course.id'},   $result.="View/Grade";
     $domain,$username);      } else {
     $request->print('.');   $result.="View";
     $request->rflush();      }
     $countdone++;      $result.='" />'."\n".'</form>'."\n";
   }      $result.='</td></tr></table>'."\n";
   $request->print("<br />Stored $countdone students\n");      $result.='</td></tr></table>'."\n";
   if (@skipped) {      return $result;
     $request->print('<br /><font size="+1"><b>Skipped Students</b></font><br />');  }
     foreach my $student (@skipped) { $request->print("<br />$student"); }  
   }  #--- Form to input a receipt number ---
   $request->print(&view_edit_entire_class_form($symb,$url));  sub verifyReceipt_form {
   $request->print(&show_grading_menu_form($symb,$url));      my ($symb,$url) = @_;
   return '';      my $result = '<script type="text/javascript" language="javascript">'."\n".
    '  function checkEntry(formname) {'."\n".
    '    var receipt = formname.receipt.value;'."\n".
    '    if (isNaN(receipt) || receipt == "") {'."\n".
    '       alert("Please enter a receipt number given by a student in the box.");'."\n".
    '       return false;'."\n".
    '    }'."\n".
    '    formname.submit();'."\n".
    '  }'."\n".
    '</script>'."\n";
   
       my $hostver=unpack("%32C*",$Apache::lonnet::perlvar{'lonHostID'});
   
       $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" name="verifyform">'."\n";
       $result.='&nbsp;<tt>'.$hostver.'-<input type="text" name="receipt" size="4"></tt><br />'."\n";
       $result.='&nbsp;<input type="button" onClick="javascript:checkEntry(this.form);"'.
    ' 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;
   }
   
   sub handler {
       my $request=$_[0];
       
       if ($ENV{'browser.mathml'}) {
    $request->content_type('text/xml');
       } else {
    $request->content_type('text/html');
       }
       $request->send_http_header;
       return '' if $request->header_only;
       &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'});
       my $url=$ENV{'form.url'};
       my $symb=$ENV{'form.symb'};
       my $command=$ENV{'form.command'};
       if (!$url) {
    my ($temp1,$temp2);
    ($temp1,$temp2,$ENV{'form.url'})=split(/___/,$symb);
    $url = $ENV{'form.url'};
       }
       &send_header($request);
       if ($url eq '' && $symb eq '') {
    if ($ENV{'user.adv'}) {
       if (($ENV{'form.codeone'}) && ($ENV{'form.codetwo'}) &&
    ($ENV{'form.codethree'})) {
    my $token=$ENV{'form.codeone'}.'*'.$ENV{'form.codetwo'}.'*'.
       $ENV{'form.codethree'};
    my ($tsymb,$tuname,$tudom,$tcrsid)=
       &Apache::lonnet::checkin($token);
    if ($tsymb) {
       my ($map,$id,$url)=split(/\_\_\_/,$tsymb);
       if (&Apache::lonnet::allowed('mgr',$tcrsid)) {
    $request->print(
    &Apache::lonnet::ssi('/res/'.$url,
        ('grade_username' => $tuname,
         'grade_domain' => $tudom,
         'grade_courseid' => $tcrsid,
         'grade_symb' => $tsymb)));
       } else {
    $request->print('<h3>Not authorized: '.$token.'</h3>');
       }           
    } else {
       $request->print('<h3>Not a valid DocID: '.$token.'</h3>');
    }
       } else {
    $request->print(&Apache::lonxml::tokeninputfield());
       }
    }
       } else {
    $Apache::grades::viewgrades=&Apache::lonnet::allowed('vgr',$ENV{'request.course.id'});
    if ($command eq 'submission') {
       &listStudents($request) if ($ENV{'form.student'} eq '');
       &submission($request,0,0) if ($ENV{'form.student'} ne '');
    } elsif ($command eq 'processGroup') {
       &processGroup($request);
    } elsif ($command eq 'gradingmenu') {
       $request->print(&gradingmenu($request));
    } elsif ($command eq 'viewgrades') {
       $request->print(&viewgrades($request));
    } elsif ($command eq 'handgrade') {
       $request->print(&processHandGrade($request));
    } elsif ($command eq 'editgrades') {
       $request->print(&editgrades($request));
    } elsif ($command eq 'verify') {
       $request->print(&verifyreceipt($request));
    } elsif ($command eq 'csvupload') {
       $request->print(&csvupload($request));
    } elsif ($command eq 'viewclasslist') {
       $request->print(&viewclasslist($request));
    } elsif ($command eq 'csvuploadmap') {
       $request->print(&csvuploadmap($request));
    } elsif ($command eq 'csvuploadassign') {
       if ($ENV{'form.associate'} ne 'Reverse Association') {
    $request->print(&csvuploadassign($request));
       } else {
    if ( $ENV{'form.upfile_associate'} ne 'reverse' ) {
       $ENV{'form.upfile_associate'} = 'reverse';
    } else {
       $ENV{'form.upfile_associate'} = 'forward';
    }
    $request->print(&csvuploadmap($request));
       }
    } else {
       $request->print("Unknown action: $command:");
    }
       }
       &send_footer($request);
       return '';
 }  }
   
 sub send_header {  sub send_header {
   my ($request)= @_;      my ($request)= @_;
   $request->print(&Apache::lontexconvert::header());      $request->print(&Apache::lontexconvert::header());
 #  $request->print("  #  $request->print("
 #<script>  #<script>
 #remotewindow=open('','homeworkremote');  #remotewindow=open('','homeworkremote');
 #remotewindow.close();  #remotewindow.close();
 #</script>");   #</script>"); 
   $request->print('<body bgcolor="#FFFFFF">');      $request->print(&Apache::loncommon::bodytag('Grading'));
 }  }
   
 sub send_footer {  sub send_footer {
   my ($request)= @_;      my ($request)= @_;
   $request->print('</body>');      $request->print('</body>');
   $request->print(&Apache::lontexconvert::footer());      $request->print(&Apache::lontexconvert::footer());
 }  
   
 sub handler {  
   my $request=$_[0];  
   
   if ($ENV{'browser.mathml'}) {  
     $request->content_type('text/xml');  
   } else {  
     $request->content_type('text/html');  
   }  
   $request->send_http_header;  
   return OK if $request->header_only;  
   &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'});  
   my $url=$ENV{'form.url'};  
   my $symb=$ENV{'form.symb'};  
   my $command=$ENV{'form.command'};  
   if (!$url) {  
     my ($temp1,$temp2);  
     ($temp1,$temp2,$ENV{'form.url'})=split(/___/,$symb);  
     $url = $ENV{'form.url'};  
   }  
   &send_header($request);  
   if ($url eq '' && $symb eq '') {  
      if ($ENV{'user.adv'}) {  
          if (($ENV{'form.codeone'}) && ($ENV{'form.codetwo'}) &&  
              ($ENV{'form.codethree'})) {  
              my $token=$ENV{'form.codeone'}.'*'.$ENV{'form.codetwo'}.'*'.  
         $ENV{'form.codethree'};  
              my ($tsymb,$tuname,$tudom,$tcrsid)=  
  &Apache::lonnet::checkin($token);  
              if ($tsymb) {  
                 my ($map,$id,$url)=split(/\_\_\_/,$tsymb);  
                 if (&Apache::lonnet::allowed('mgr',$tcrsid)) {  
                    $request->print(  
                      &Apache::lonnet::ssi('/res/'.$url,  
                         ('grade_username' => $tuname,  
                          'grade_domain' => $tudom,  
                          'grade_courseid' => $tcrsid,  
                          'grade_symb' => $tsymb)));  
                 } else {  
                    $request->print('<h1>Not authorized: '.$token.'</h1>');  
                 }             
     } else {  
                 $request->print('<h1>Not a valid DocID: '.$token.'</h1>');  
             }  
  } else {  
              $request->print(&Apache::lonxml::tokeninputfield());  
          }  
      }  
   } else {  
     #&Apache::lonhomework::showhashsubset(\%ENV,'^form');  
     $Apache::grades::viewgrades=&Apache::lonnet::allowed('vgr',$ENV{'request.course.id'});  
     if ($command eq 'submission') {  
       &listStudents($request) if ($ENV{'form.student'} eq '');  
       &submission($request,0,0) if ($ENV{'form.student'} ne '');  
     } elsif ($command eq 'processGroup') {  
       &processGroup($request);  
     } elsif ($command eq 'gradingmenu') {  
       $request->print(&gradingmenu($request));  
     } elsif ($command eq 'viewgrades') {  
       $request->print(&viewgrades($request));  
     } elsif ($command eq 'handgrade') {  
       $request->print(&processHandGrade($request));  
     } elsif ($command eq 'editgrades') {  
       $request->print(&editgrades($request));  
     } elsif ($command eq 'verify') {  
       $request->print(&verifyreceipt($request));  
     } elsif ($command eq 'csvupload') {  
       $request->print(&csvupload($request));  
     } elsif ($command eq 'csvuploadmap') {  
       $request->print(&csvuploadmap($request));  
 #    } elsif ($command eq 'receiptInput') {  
 #      &receiptInput($request);  
     } elsif ($command eq 'csvuploadassign') {  
       if ($ENV{'form.associate'} ne 'Reverse Association') {  
  $request->print(&csvuploadassign($request));  
       } else {  
  if ( $ENV{'form.upfile_associate'} ne 'reverse' ) {  
   $ENV{'form.upfile_associate'} = 'reverse';  
  } else {  
   $ENV{'form.upfile_associate'} = 'forward';  
  }  
  $request->print(&csvuploadmap($request));  
       }  
     } else {  
       $request->print("Unknown action: $command:");  
     }  
   }  
   &send_footer($request);  
   return OK;  
 }  }
   
 1;  1;
Removed from v.1.37  
changed lines
  Added in v.1.57

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