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Diff for /loncom/homework/bridgetask.pm between versions 1.24 and 1.271

version 1.24, 2005/05/13 15:34:50 version 1.271, 2020/09/01 16:36:38
Line 36  use Apache::File(); Line 36  use Apache::File();
 use Apache::lonmenu;  use Apache::lonmenu;
 use Apache::lonlocal;  use Apache::lonlocal;
 use Apache::lonxml;  use Apache::lonxml;
   use Apache::slotrequest();
   use Apache::structuretags();
 use Time::HiRes qw( gettimeofday tv_interval );  use Time::HiRes qw( gettimeofday tv_interval );
   use LONCAPA;
    
   
 BEGIN {  BEGIN {
     &Apache::lonxml::register('Apache::bridgetask',('Task','IntroParagraph','Dimension','Instance','InstanceText','Criteria','ClosingParagraph'));      &Apache::lonxml::register('Apache::bridgetask',('Task','IntroParagraph','Dimension','Question','QuestionText','Setup','Instance','InstanceText','Criteria','CriteriaText','GraderNote','ClosingParagraph'));
 }  }
   
   my %dimension;
   my $top = 'top';
   
 sub initialize_bridgetask {  sub initialize_bridgetask {
     # id of current Dimension, 0 means that no dimension is current       # id of current Dimension, 0 means that no dimension is current 
     # (inside <Task> only)      # (inside <Task> only)
     $Apache::bridgetask::dimension='';      @Apache::bridgetask::dimension=();
     # list of all Dimension ids seen  
     @Apache::bridgetask::dimensionlist=();  
     # mandatory attribute of all Dimensions seen  
     %Apache::bridgetask::dimensionmandatory=();  
     # list of all current Instance ids      # list of all current Instance ids
     @Apache::bridgetask::instance=();      %Apache::bridgetask::instance=();
     # list of all Instance ids seen in this problem      # list of all Instance ids seen in this problem
     @Apache::bridgetask::instancelist=();      @Apache::bridgetask::instancelist=();
     # key of queud user data that we are currently grading      # key of queud user data that we are currently grading
     $Apache::bridgetask::queue_key='';      $Apache::bridgetask::queue_key='';
       undef(%dimension);
 }  }
   
 sub proctor_check_auth {  sub proctor_check_auth {
     my ($slot_name,$slot)=@_;      my ($slot_name,$slot,$type)=@_;
     my $user=$env{'form.proctorname'};      my $user=$env{'form.proctorname'};
       $user =~ s/^\s+|\s+$//g;
     my $domain=$env{'form.proctordomain'};      my $domain=$env{'form.proctordomain'};
           
     my @allowed=split(",",$slot->{'proctor'});      my @allowed=split(",",$slot->{'proctor'});
     foreach my $possible (@allowed) {      foreach my $possible (@allowed) {
  my ($puser,$pdom)=(split('@',$possible));   my ($puser,$pdom)=(split(':',$possible));
  if ($puser eq $user && $pdom eq $domain) {   if ($puser eq $user && $pdom eq $domain) {
     my $authhost=&Apache::lonnet::authenticate($puser,$env{'form.proctorpassword'},$pdom);      my $authenticated=0;
     if ($authhost ne 'no_host') {      if ( $slot->{'secret'} =~ /\S/ &&
  my $version=   $env{'form.proctorpassword'} eq $slot->{'secret'} ) {
     $Apache::lonhomework::results{'resource.version'}=   $authenticated=1;
     $Apache::lonhomework::history{'resource.version'}++;      } else {
  $Apache::lonhomework::results{"resource.$version.checkedin"}=  
     $user.'@'.$domain;   my $authhost=&Apache::lonnet::authenticate($puser,$env{'form.proctorpassword'},$pdom);
  $Apache::lonhomework::results{"resource.$version.checkedin.slot"}=   if ($authhost ne 'no_host') {
     $slot_name;      $authenticated=1;
    }
       }
       if ($authenticated) {
    my $check = &check_in($type,$user,$domain,$slot_name,$slot->{'iptied'});
                   if ($check =~ /^error:/) {
                       return 0;
                   }
  return 1;   return 1;
     }      }
  }   }
Line 83  sub proctor_check_auth { Line 95  sub proctor_check_auth {
     return 0;      return 0;
 }  }
   
   sub check_in {
       my ($type,$user,$domain,$slot_name,$needsiptied) = @_;
       my $useslots = &Apache::lonnet::EXT("resource.0.useslots");
       my $ip=$ENV{'REMOTE_ADDR'} || $env{'request.host'};
       if ( $useslots eq 'map_map') {
    my $result = &check_in_sequence($user,$domain,$slot_name,$ip,$needsiptied);
           if ($result =~ /^error: /) {
               return $result;
           }
       } else {
           my ($symb) = &Apache::lonnet::whichuser();
    my $result = &create_new_version($type,$user,$domain,$slot_name,$symb,$ip,$needsiptied);
           if ($result eq 'ok') {
       &Apache::structuretags::finalize_storage();
           }
           return $result; 
       }
       return 1;
   }
   
   sub check_in_sequence {
       my ($user,$domain,$slot_name,$ip,$needsiptied) = @_;
       my $navmap = Apache::lonnavmaps::navmap->new();
       if (!defined($navmap)) {
           return 'error: No navmap';
       }
       my ($symb) = &Apache::lonnet::whichuser();
       my ($map)  = &Apache::lonnet::decode_symb($symb);
       my @resources = 
    $navmap->retrieveResources($map, sub { $_[0]->is_problem() || $_[0]->is_tool() },0,0);
       my %old_history = %Apache::lonhomework::history;
       my %old_results = %Apache::lonhomework::results;
   
       my $errorcount;
       foreach my $res (@resources) {
    &Apache::lonxml::debug("doing ".$res->src);
    &Apache::structuretags::initialize_storage($res->symb);
    my $type;
           if ($res->is_task()) {
               $type = 'Task';
           } elsif ($res->is_tool) {
               $type = 'tool';
           } else {
               $type = 'problem';
           }
    my $result = &create_new_version($type,$user,$domain,$slot_name,$res->symb,$ip,$needsiptied);
           if ($result eq 'ok') {
       &Apache::structuretags::finalize_storage($res->symb);
           } else {
               $errorcount ++;
           }
       }
       
       %Apache::lonhomework::history = %old_history;
       %Apache::lonhomework::results = %old_results;
       if ($errorcount) {
           return 'error: IP taken';
       }
   }
   
   sub create_new_version {
       my ($type,$user,$domain,$slot_name,$symb,$ip,$needsiptied) = @_;
   
       if ($needsiptied) {
           my $uniqkey = "$slot_name\0$symb\0$ip";
           my ($cdom,$cnum);
           if ($env{'request.course.id'}) {
               my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
               my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
               my %hash = (
                             "$slot_name\0$symb\0$ip" => $env{'user.name'}.':'.$env{'user.domain'}, 
                          );
               unless (&Apache::lonnet::newput('slot_uniqueips',\%hash,$cdom,$cnum) eq 'ok') {
                   return 'error: IP taken';
               }
           }
       }
       
       my $id = '0';
       if ($type eq 'Task') {
    # increment version
    my $version=
       $Apache::lonhomework::history{'resource.0.version'};
    $version++;
    &Apache::lonxml::debug("Making version $version");
    #clean out all current results
    foreach my $key (keys(%Apache::lonhomework::history)) {
       if ($key=~/^resource\.0\./) {
    $Apache::lonhomework::results{$key}='';
       }
    }
   
    #setup new version and who did it
           $Apache::lonhomework::results{'resource.0.version'}=$version;
    $id = "$version.0";
    if (!defined($user) || !defined($domain)) {
       $user = $env{'user.name'};
       $domain = $env{'user.domain'};
    }
   
       } elsif (($type eq 'problem') || ($type eq 'tool')) {
    &Apache::lonxml::debug("authed $slot_name");
       }
       if (!defined($user) || !defined($domain)) {
    $user = $env{'user.name'};
    $domain = $env{'user.domain'};
       }
   
       $Apache::lonhomework::results{"resource.$id.checkedin"}=
    $user.':'.$domain;
       $Apache::lonhomework::results{"resource.$id.checkedin.ip"}=$ip;
   
       if (defined($slot_name)) {
    $Apache::lonhomework::results{"resource.$id.checkedin.slot"}=
       $slot_name;
       }
       return 'ok'; 
   }
   
   sub get_version {
       my ($version,$previous);
       if ($env{'form.previousversion'} && 
    $env{'form.previousversion'} ne 'current' &&
    defined($Apache::lonhomework::history{'resource.'.$env{'form.previousversion'}.'.0.status'})) {
    $version=$env{'form.previousversion'};
    $previous=1;
       } else {
    if (defined($Apache::lonhomework::results{'resource.0.version'})) {
       $version=$Apache::lonhomework::results{'resource.0.version'};
    } elsif (defined($Apache::lonhomework::history{'resource.0.version'})) {
       $version=$Apache::lonhomework::history{'resource.0.version'};
    }
    $previous=0;
       }
       if (wantarray) {
    return ($version,$previous);
       }
       return $version;
   }
   
 sub add_previous_version_button {  sub add_previous_version_button {
       my ($status)=@_;
       my (undef,undef,$udom,$uname)=&Apache::lonnet::whichuser();
       if (($uname ne $env{'user.name'}) || ($udom ne $env{'user.domain'})) {
           return;
       }
     my $result;      my $result;
     $result.=&mt(' Show a previously done version: [_1]','<select name="previousversion">      if ($Apache::lonhomework::history{'resource.0.version'} eq '') {
 <option>Pick one</option>   return '';
 </select>');      }
       if ($Apache::lonhomework::history{'resource.0.version'} < 2 &&
    $status ne 'NEEDS_CHECKIN') {
    return '';
       }
       my $version=&get_version();
       if ($env{'form.previousversion'} ne '' &&
    $env{'form.previousversion'} eq $version) {
    $result.="<h3>".&mt("Showing previous version [_1]",$version).
       "</h3>\n";
       }
       my @to_show;
       foreach my $test_version (1..$Apache::lonhomework::history{'resource.0.version'}) {
    if (defined($Apache::lonhomework::history{'resource.'.$test_version.'.0.status'})) {
       push(@to_show,$test_version);
    }
       }
       my $list='<option>'.
    join("</option>\n<option>",@to_show).
        "</option>\n";
       $list.='<option value="current">'.&mt('Current').'</option>';
       $result.='<form name="getprevious" method="post" action="';
       my $uri=$env{'request.uri'};
       if ($env{'request.enc'}) { $uri=&Apache::lonenc::encrypted($uri); }
       $result.=$uri.'">'.
    &mt(' Show a previously done version: [_1]','<select onchange="this.form.submit()" name="previousversion">
   <option>'.&mt('Pick one').'</option>
   '.$list.'
   </select>')."</form>";
     return $result;      return $result;
 }  }
   
 sub add_grading_button {  sub add_grading_button {
       my (undef,$cid,$udom,$uname)=&Apache::lonnet::whichuser();
       if (($uname ne $env{'user.name'}) || ($udom ne $env{'user.domain'})) {
           return;
       }
       my $cnum=$env{'course.'.$cid.'.num'};
       my $cdom=$env{'course.'.$cid.'.domain'};
       my %sections = &Apache::loncommon::get_sections($cdom,$cnum);
   
       my $size=5;
       if (scalar(keys(%sections)) < 3) {
    $size=scalar(keys(%sections))+2;
       }
       my $sec_select = "\n".'<select multiple="multiple" name="chosensections" size="'.$size.'">'."\n";
       $sec_select .= "\t".'<option value="all" selected="selected">'.&mt('all')."</option>\n";
       foreach my $sec (sort {lc($a) cmp lc($b)} (keys(%sections))) {
    $sec_select .= "\t<option value=\"$sec\">$sec</option>\n";
       }
       $sec_select .= "\t".'<option value="none">'.&mt('none')."</option>\n</select>\n";
   
       my $uri=$env{'request.uri'};
       if ($env{'request.enc'}) { $uri=&Apache::lonenc::encrypted($uri); }
       my $result = 
           '<form name="gradesubmission" method="post" action="'.$uri.'">'.
           "\n\t".'<input type="submit" name="gradeasubmission" value="'.
    &mt("Get a submission to grade").'" />'.
           "\n\t".'<input type="hidden" name="grade_target" value="webgrade" />';
       my $see_all = &Apache::lonnet::allowed('mgq',$env{'request.course.id'});
       my $see_sec = &Apache::lonnet::allowed('mgq',$env{'request.course.id'}.
      '/'.$env{'request.course.sec'});
   
       if ($see_all || $see_sec) {
    my ($entries,$ready,$locks)=&get_queue_counts('gradingqueue');
    $result.="\n\t".'<table>'."\n\t\t".'<tr>';
    if ($see_all || (!&section_restricted())) {
       $result.="\n\t\t\t".'<td rowspan="4">'.&mt('Specify a section:').' </td>'.
    "\n\t\t\t".'<td rowspan="4">'.$sec_select."\n\t\t\t".'</td>';
    } else {
       $result.="\n\t\t\t".'<td rowspan="4">'.&mt('Grading section:').' </td>'.
    "\n\t\t\t".'<td rowspan="4">'.$env{'request.course.sec'}."\n\t\t\t".'</td>';
    }
    $result.="\n\t\t\t".'<td>'.'<input type="submit" name="reviewagrading" value="'.
       &mt("Select an entry from the grading queue:").'" /> ';
   
    $result.= "\n\t\t\t\t".&mt("[_1] entries, [_2] ready, [_3] being graded",$entries,$ready,$locks).'</td>'."\n\t\t".'</tr>'."\n";
   
    ($entries,$ready,$locks)=&get_queue_counts('reviewqueue');
    $result.="\n\t\t".'<tr>'.
       "\n\t\t\t".'<td>'.
       "\n\t\t\t\t".'<input type="submit" name="reviewasubmission" value="'.
       &mt("Select an entry from the review queue:").'" /> ';
    $result.=&mt("[_1] entries, [_2] ready, [_3] being graded",
        $entries,$ready,$locks).'</td>'."\n\t\t".'</tr>'."\n";
    $result.="\n\t\t".'<tr>'.
       "\n\t\t\t".'<td>'.
       "\n\t\t\t\t".'<input type="submit" name="regradeasubmission" value="'.
       &mt("List of user's grade status").'" /> </td>'
       ."\n\t\t".'</tr>'
       ."\n\t".'</table>'."\n";
    $result.="\n\t".'<p>'.
       "\n\t\t".'<input type="submit" name="regradeaspecificsubmission" value="'.
       &mt("Regrade specific user:").'" />';
    $result.= "\n\t\t".'<input type="text" size="12" name="gradinguser" />';
    $result.=&Apache::loncommon::select_dom_form($env{'user.domain'},
        'gradingdomain');
    $result.=' '.
       &Apache::loncommon::selectstudent_link('gradesubmission',
      'gradinguser',
      'gradingdomain');
    $result.=&Apache::loncommon::studentbrowser_javascript();
    $result.= '</p>'."\n";
       }
       $result .= '</form>'."\n";
       return $result;
   }
   
   sub add_slotlist_button {
       my (undef,$cid,$udom,$uname)=&Apache::lonnet::whichuser();
       if (($uname ne $env{'user.name'}) || ($udom ne $env{'user.domain'})) {
           return;
       }
       my $symb=&Apache::lonnet::symbread();
     my $result;      my $result;
     $result.=' <input type="submit" name="gradeasubmission" value="'.      if (&Apache::lonnet::allowed('mgq',$env{'request.course.id'}) ||
  &mt("Get a submission to grade").'" />';          &Apache::lonnet::allowed('mgq',$env{'request.course.id'}.'/'.$env{'request.course.sec'})) {
     $result.='<input type="hidden" name="grade_target" value="webgrade" />';          $result = '<form method="post" name="slotrequest" action="/adm/slotrequest">'.
                     '<input type="hidden" name="symb" value="'.$symb.'" />'.
                     '<input type="hidden" name="command" value="showslots" />'.
                     '<input type="submit" name="requestattempt" value="'.
                     &mt('Show Slot list').'" />'.
                     '</form>';
           my $target_id =
                  &Apache::lonstathelpers::make_target_id({symb => $symb,
                                                                part => '0'});
           if (!&section_restricted()) {
               $result.='<form method="post" name="gradingstatus" action="/adm/statistics">'.
                        '<input type="hidden" name="problemchoice" value="'.$target_id.'" />'.
                        '<input type="hidden" name="reportSelected" value="grading_analysis" />'.
                        '<input type="submit" name="grading" value="'.
                        &mt('Show Grading Status').'" />'.
                        '</form>';
           }
       }
     return $result;      return $result;
 }  }
   
 sub add_request_another_attempt_button {  sub add_request_another_attempt_button {
       my ($text)=@_;
       my (undef,$cid,$udom,$uname)=&Apache::lonnet::whichuser();
       if (($uname ne $env{'user.name'}) || ($udom ne $env{'user.domain'})) {
           return;
       }
       if (!$text) { $text=&mt('Request another attempt'); }
       my $result;
       my $symb=&Apache::lonnet::symbread();
       # not a slot access based resource
       my $useslots = &Apache::lonnet::EXT("resource.0.useslots",$symb);
       if ($useslots =~ /^\s*no\s*$/i) {
    return '';
       }
   
       my ($slot_name,$slot)=&Apache::slotrequest::check_for_reservation($symb);
       my $action='get_reservation';
       if ($slot_name) {
    $text=&mt('Change reservation');
    $action='change_reservation';
    my $description=&Apache::slotrequest::get_description($slot_name,
         $slot);
    $result.='<p>'
                   .&mt('Will be next available:')
                   .' '.$description
                   .'</p>';
       }
           
       if ($env{'request.enc'}) { $symb=&Apache::lonenc::encrypted($symb); }
       $symb=&escape($symb);
       $result.=
           "\n\t".'<form method="post" action="/adm/slotrequest">'."\n\t\t".
    '<input type="hidden" name="symb" value="'.$symb.'" />'."\n\t\t".
    '<input type="hidden" name="command" value="'.$action.'" />'."\n\t\t".
    '<input type="submit" name="requestattempt" value="'.
    $text.'" />'."\n\t".
    '</form>'."\n";
       return $result;
   }
   
   sub preserve_grade_info {
       my $result;
       # if we are viewing someone else preserve that info
       if (defined $env{'form.grade_symb'}) {
    foreach my $field ('symb','courseid','domain','username') {
       $result .= '<input type="hidden" name="grade_'.$field.
    '" value="'.$env{"form.grade_$field"}.'" />'."\n";
    }
       }
       return $result;
   }
   
   sub style {
       my ($target) = @_;
       if ($target eq 'web'
    || $target eq 'webgrade') {
    my $style = (<<STYLE);
   <link rel="stylesheet" type="text/css" href="/res/adm/includes/task.css" />
   STYLE
           if ($env{'browser.type'} eq 'explorer'
       && $env{'browser.os'} eq 'win' ) {
       if ($env{'browser.version'} < 7) {
    $style .= (<<STYLE);
   <link rel="stylesheet" type="text/css" href="/res/adm/includes/task_ie.css" />
   STYLE
               } else {
    $style .= (<<STYLE);
   <link rel="stylesheet" type="text/css" href="/res/adm/includes/task_ie7.css" />
   STYLE
       }
    }
    return $style;
       }
       return;
   }
   
   sub show_task {
       my ($status,$previous)=@_;
       if (!$previous && (
          ( $status eq 'CLOSED' ) ||
          ( $status eq 'BANNED') ||
          ( $status eq 'UNAVAILABLE') ||
          ( $status eq 'NOT_IN_A_SLOT') ||
                          ( $status eq 'NOT_YET_VIEWED') ||
          ( $status eq 'NEEDS_CHECKIN') ||
          ( $status eq 'WAITING_FOR_GRADE') ||
          ( $status eq 'INVALID_ACCESS') ||
          ( &get_version() eq ''))) {
    return 0;
       }
       if ($env{'form.donescreen'}) { return 0; }
       return 1;
   }
   
   my @delay;
   sub nest { 
       if (@delay) {
    return $delay[-1];
       } else {
    return;
       }
   }
   
   sub start_delay {
       push(@delay,1);
   }
   sub end_delay {
       pop(@delay);
   }
   
   sub nested_parse {
       my ($str,$env,$args) = @_;
       my @old_env = @Apache::scripttag::parser_env;
       @Apache::scripttag::parser_env = @$env;
       if (exists($args->{'set_dim_id'})) {
    &enable_dimension_parsing($args->{'set_dim_id'});
       }
       push(@delay,(($args->{'delayed_dim_results'})? 1 : 0));
       my $result = &Apache::scripttag::xmlparse($$str);
       pop(@delay);
       if (exists($args->{'set_dim_id'})) {
    &disable_dimension_parsing();
       }
       @Apache::scripttag::parser_env = @old_env;
       if ($args->{'delayed_dim_results'}) {
    my $dim = &get_dim_id();
    &Apache::lonxml::debug(" tossing out $result ");
    &Apache::lonxml::debug(" usining out $dim 's  ". $dimension{$dim}{'result'});
    return $dimension{$dim}{'result'};
       }
       return $result;
   }
   
   sub internal_location {
       my ($id)=@_;
       return '<!-- LONCAPA_INTERNAL_ADD_TASK_STATUS'.$id.' -->';
   }
   
   sub submission_time_stamp {
       my ($symb,$courseid,$udom,$uname)=&Apache::lonnet::whichuser();
       my $submissiontime;
       my $version=$Apache::lonhomework::history{'resource.0.version'};
       for (my $v=$Apache::lonhomework::history{'version'};$v>0;$v--) {
    if (defined($Apache::lonhomework::history{$v.':resource.'.$version.'.0.bridgetask.portfiles'})
       && defined($Apache::lonhomework::history{$v.':resource.'.$version.'.0.tries'})) {
       $submissiontime=$Apache::lonhomework::history{$v.':timestamp'};
       last;
    }
       }
       my $result;
       if ($submissiontime) {
    my $slot_name=$Apache::lonhomework::history{'resource.'.$version.'.0.checkedin.slot'};
    my %slot=&Apache::lonnet::get_slot($slot_name);
    my $diff = $slot{'endtime'} - $submissiontime;
    my ($color,$when)=('#FF6666','after');
    if ($diff > 0) { ($color,$when)=('#336600','before'); }
    my $info;
    $diff = abs($diff);
    if ($diff%60) { $info=($diff%60).' seconds'; }
    $diff=int($diff/60);
    if ($diff%60) { $info=($diff%60).' minutes '.$info; }
    $diff=int($diff/60);
    if ($diff) {    $info=$diff.' hours '.$info; }
    $result='<p><font color="'.$color.'">'.
       &mt('Student submitted [_1] [_2] the deadline. '.
    '(Submission was at [_3], end of period was [_4].)',
    $info,$when,
    &Apache::lonlocal::locallocaltime($submissiontime),
    &Apache::lonlocal::locallocaltime($slot{'endtime'})).
    '</font></p>';
       }
       return $result;
   }
   
   sub file_list {
       my ($files,$uname,$udom) = @_;
       if (!defined($uname) || !defined($udom)) {
    (undef,undef,$udom,$uname) = &Apache::lonnet::whichuser();
       }
       my $file_url = '/uploaded/'.$udom.'/'.$uname.'/portfolio/';
   
       my $file_list="<ul class=\"LC_GRADING_handininfo\">\n";
       foreach my $partial_file (split(',',$files)) {
    my $file=$file_url.$partial_file;
    $file=~s|/+|/|g;
    &Apache::lonnet::allowuploaded('/adm/bridgetask',$file);
    $file_list.='<li><span class="LC_nobreak"><a href="'.$file.'?rawmode=1" target="lonGRDs"><img src="'.
       &Apache::loncommon::icon($file).'" alt="file icon" border="0" /> '.$file.
       '</a></span></li>'."\n";
       }
       $file_list.="</ul>\n";
       return $file_list;
   }
   
   sub grade_mode {
       if ($env{'form.regrade'} || $env{'form.regradeaspecificsubmission'}) {
    return 'regrade';
       }
       return 'queue_grade';
   }
   
   sub webgrade_standard_info {
       my ($version)=&get_version();
   
       my $file_list = &file_list($Apache::lonhomework::history{"resource.$version.0.bridgetask.portfiles"});
   
       my %lt = &Apache::lonlocal::texthash(
           'done'   => 'Next Item',
           'stop'   => 'Quit Grading',
           'fail'   => 'Fail Rest',
           'cancel' => 'Cancel',
           'submit' => 'Submit Grades',
       );
   
       my $result=<<INFO;
     <div class="LC_GRADING_maincontrols">
   INFO
   
       if ($env{'request.state'} eq 'construct') {
    $result.=<<INFO;
       <input type="submit" name="next" value="$lt{'submit'}" />
   INFO
       } else {
    if (&grade_mode() eq 'regrade' && $env{'request.state'} ne 'construct') {
       $result.=<<INFO;
       <input type="submit" name="cancel" value="$lt{'cancel'}" />
   INFO
           }
   
    $result.=<<INFO;
       <input type="submit" name="next" value="$lt{'done'}" />
       <input type="submit" name="stop" value="$lt{'stop'}" />
   INFO
       }
       $result.=<<INFO;
       <input type="button" name="fail" value="$lt{'fail'}" 
              onclick="javascript:onFailRest()" />
     </div>
     $file_list
   INFO
       return $result;
   
   }
   
   sub done_screen {
       my ($version) = @_;
       my $title=&Apache::lonnet::gettitle($env{'request.uri'});
       my @files=split(',',$Apache::lonhomework::history{'resource.'.$version.'.0.bridgetask.portfiles'});
       my (undef,undef,$domain,$user)= &Apache::lonnet::whichuser();
       my ($msg,$files,$shown);
       if (@files > 0) {
           $files = '<ul>';
           foreach my $file (@files) {
       my $url="/uploaded/$domain/$user/portfolio$file";
       if (! &Apache::lonnet::stat_file($url)) {
           $file = '<span class="LC_error">'
                          .&mt('[_1]Nonexistent file:[_2]'
                              ,'<span class="LC_error"> '
                              ,'</span> <span class="LC_filename">'.$file.'</span>');
           $msg .= "<p>".&mt('Submitted non-existent file [_1]',$file)."</p>\n";
       } else {
           $file = '<span class="LC_filename">'.$file.'</span>';
           $msg .= "<p>".&mt('Submitted file [_1]',$file)."</p>\n";
       }
       $files .= '<li>'.$file.'</li>';
           }
           $files.='</ul>';
           $shown = '<p>'.&mt('Files submitted: [_1]',$files).'</p>'
                   .'<p>'.&mt('You are now done with this Bridge Task').'</p>'
                   .'<hr />'
                   .'<p><a href="/adm/logout">'.&mt('Logout').'</a></p>'
                   .'<p><a href="/adm/roles">'.&mt('Change to a different course').'</a></p>';
       } else {
           $msg = &mt("Submission status: no files currently submitted, when 'Done' was indicated.");
           $shown = '<p class="LC_error">'.
                    &mt('You did not submit any files.  Please try again.').'</span>'.
                    '</p><p><a href="javascript:history.go(-1);">'.&mt('Back to Bridge Task').'</a></p><hr />';
       }
       my $subject = &mt('Submission message for [_1]',$title);
       my ($message_status,$comment_status);
       my $setting = $env{'course.'.$env{'request.course.id'}.'.task_messages'};
       $setting =~ s/^\s*(\S*)\s*$/$1/;
       $setting = lc($setting);
       if ($setting eq 'only_student'
    || $setting eq 'student_and_user_notes_screen') {
    $message_status =
       &Apache::lonmsg::user_normal_msg($user,$domain,$subject,$msg);
    $message_status = '<p>'.&mt('Message sent to user: [_1]',
       $message_status).' </p>';
       }
       if ($setting eq 'student_and_user_notes_screen') {
    $comment_status = 
       &Apache::lonmsg::store_instructor_comment($subject.'<br />'.
         $msg,$user,$domain);
    $comment_status = '<p>'.&mt('Message sent to instructor: [_1]',
       $comment_status).' </p>';
       }
    
       return "<h2>$title</h2>"
             .$shown
             .$message_status
             .$comment_status;
 }  }
   
 sub start_Task {  sub start_Task {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
   
     my ($status,$accessmsg,$slot);      my ($status,$accessmsg,$slot);
       &Apache::structuretags::init_problem_globals('Task');
     if ($target ne 'webgrade') {      if ($target ne 'webgrade') {
  &Apache::structuretags::initialize_storage();   &Apache::structuretags::initialize_storage();
  &Apache::lonhomework::showhash(%Apache::lonhomework::history);   &Apache::lonhomework::showhash(%Apache::lonhomework::history);
    if ($env{'request.state'} eq 'construct') {
       &Apache::structuretags::setup_rndseed($safeeval);
    }
     }       } 
   
     $Apache::lonhomework::parsing_a_task=1;      $Apache::lonhomework::parsing_a_task=1;
     #should get back a <html> or the neccesary stuff to start XML/MathML  
     my ($result,$head_tag_start,$body_tag_start,$form_tag_start)=      my $name;
  &Apache::structuretags::page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);      if ($target eq 'web' || $target eq 'webgrade') {
        $name = &Apache::structuretags::get_resource_name($parstack,$safeeval);
     if ($target eq 'web') {      }
  $body_tag_start.=&add_previous_version_button();  
  if ($Apache::lonhomework::modifygrades) {      my ($result,$form_tag_start);
     $body_tag_start.='<form name="gradesubmission" method="POST" action="';      if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
     my $uri=$env{'request.uri'};   || $target eq 'edit') {
     if ($env{'request.enc'}) { $uri=&Apache::lonenc::encrypted($uri); }   ($result,$form_tag_start) =
     $body_tag_start.=$uri.'">'.&add_grading_button()."</form>";      &Apache::structuretags::page_start($target,$token,$tagstack,
          $parstack,$parser,$safeeval,
          $name,&style($target));
   
       }
       if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
           $target eq 'tex') {
           if ($env{'form.markaccess'}) {
               my @interval=&Apache::lonnet::EXT("resource.0.interval");
               my ($timelimit) = ($interval[0] =~ /^(\d+)/);
               &Apache::lonnet::set_first_access($interval[1],$timelimit);
           }
       }
   
       if ($target eq 'web' && $env{'request.state'} ne 'construct') {
    if ($Apache::lonhomework::queuegrade
       || $Apache::lonhomework::modifygrades) {
       $result .= &add_grading_button();
       my $symb=&Apache::lonnet::symbread();
       if (&Apache::lonnet::allowed('mgq',$env{'request.course.id'})
    || &Apache::lonnet::allowed('mgq',$env{'request.course.id'}.'/'.$env{'request.course.sec'})) {
                   $result .= &add_slotlist_button(); 
       }
  }   }
     }      }
     if ($target eq 'web' || ($target eq 'grade' && !$env{'form.webgrade'}) || $target eq 'answer' ||      if ($target =~/(web|webgrade)/ && $env{'request.state'} eq 'construct') {
  $target eq 'tex') {   $form_tag_start.=&Apache::structuretags::problem_web_to_edit_header($env{'form.rndseed'});
  my $version=$Apache::lonhomework::history{'resource.version'};      }
       if ($target eq 'web' 
    || ($target eq 'grade' && !$env{'form.webgrade'}) 
    || $target eq 'answer' 
    || $target eq 'tex') {
    my ($version,$previous)=&get_version();
  ($status,$accessmsg,my $slot_name,$slot) =    ($status,$accessmsg,my $slot_name,$slot) = 
     &Apache::lonhomework::check_task_access('0');      &Apache::lonhomework::check_slot_access('0','Task');
    if ((($status eq 'CAN_ANSWER') || ($status eq 'NOT_YET_VIEWED')) && ($version eq '')) {
       # CAN_ANSWER or NOT_YET_VIEWED mode, and no current version, unproctored access
       # thus self-checkedin
               my $needsiptied;
               if (ref($slot)) {
                   $needsiptied = $slot->{'iptied'};
               }
       my $check = &check_in('Task',undef,undef,$slot_name,$needsiptied);
               if ($check =~ /^error:\s+(.*)$/) {
                   my $symb=&Apache::lonnet::symbread();
                   &Apache::lonnet::logthis("Error: $1 during self-checkin of version $version of Task (symb: $symb) using slot: $slot_name");   
               }
       &add_to_queue('gradingqueue',{'type' => 'Task',
     'time' => time,
     'slot' => $slot_name});
       ($version,$previous)=&get_version();
    }
           if (($target eq 'web') && ($version ne '') && ($slot_name ne '')) {
               if (ref($slot) eq 'HASH') {
                   if ($slot->{'endtime'} > time()) {
                       $result .=
                           &Apache::lonhtmlcommon::set_due_date($slot->{'endtime'});
                   }
               }
    }
   
    my $status_id = 'LC_task_take';
           if ($previous && $target eq 'answer') {
               $status_id = 'LC_task_answer';
           } elsif ($previous || $status eq 'SHOW_ANSWER') {
       $status_id = 'LC_task_feedback';
           }
    $result .= '<div class="LC_task" id="'.$status_id.'">'."\n";
   
  push(@Apache::inputtags::status,$status);   push(@Apache::inputtags::status,$status);
  $Apache::inputtags::slot_name=$slot_name;   $Apache::inputtags::slot_name=$slot_name;
  my $expression='$external::datestatus="'.$status.'";';   my $expression='$external::datestatus="'.$status.'";';
  $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$version.solved"}.'";';   $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$version.0.solved"}.'";';
  &Apache::run::run($expression,$safeeval);   &Apache::run::run($expression,$safeeval);
  &Apache::lonxml::debug("Got $status");   &Apache::lonxml::debug("Got $status");
  if (( $status eq 'CLOSED' ) ||   $result.=&add_previous_version_button($status);
     ( $status eq 'BANNED') ||   if (!&show_task($status,$previous)) {
     ( $status eq 'UNAVAILABLE') ||      my $bodytext=&Apache::lonxml::get_all_text("/task",$parser,$style);
     ( $status eq 'NOT_IN_A_SLOT') ||  
     ( $status eq 'NEEDS_CHECKIN') ||  
     ( $status eq 'WAITING_FOR_GRADE') ||  
     ( $status eq 'INVALID_ACCESS')) {  
     my $bodytext=&Apache::lonxml::get_all_text("/task",$parser);  
     if ( $target eq "web" ) {      if ( $target eq "web" ) {
  $result.= $head_tag_start.'</head>'.$body_tag_start;   if ($env{'request.state'} eq 'construct') {
       $result.=$form_tag_start;
    }
  my $msg;   my $msg;
  if ($status eq 'UNAVAILABLE') {   if ($status eq 'UNAVAILABLE') {
     $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';      $msg.='<p class="LC_error">'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</p>';
  } elsif ($status eq 'NOT_IN_A_SLOT') {   } elsif ($status eq 'NOT_IN_A_SLOT') {
     $msg.='<h1>'.&mt('You are not currently signed up to work at this time and/or place.').'</h1>';      $msg.='<p class="LC_warning">'.&mt('You are not currently signed up to work at this time and/or place.').'</p>';
       $msg.=&add_request_another_attempt_button("Sign up for time to work");
  } elsif ($status eq 'NEEDS_CHECKIN') {   } elsif ($status eq 'NEEDS_CHECKIN') {
     $msg.='<h1>'.&mt('You need the Proctor to validate you.').      $msg.='<p class="LC_warning">'.&mt('You need the Proctor to validate you.').
  '</h1>'.&proctor_validation_screen($slot);   '</p>'.&proctor_validation_screen($slot);
  } elsif ($status eq 'WAITING_FOR_GRADE') {   } elsif ($status eq 'WAITING_FOR_GRADE') {
     $msg.='<h1>'.&mt('Your submission is in the grading queue.').'</h1>';      $msg.='<p class="LC_info">'.&mt('Your submission is in the grading queue.').'</p>';
  } elsif ($status ne 'NOT_YET_VIEWED') {   } elsif ($env{'form.donescreen'}) {
     $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';      $result .= &done_screen($version);
    } elsif ($status eq 'NOT_YET_VIEWED') {
                       my $symb=&Apache::lonnet::symbread();
                       $msg.=&Apache::structuretags::firstaccess_msg($accessmsg,$symb);
                   } elsif ($status eq 'NEED_DIFFERENT_IP') {
   #FIXME
    } else {
       $msg.='<p class="LC_warning">'.&mt('Not open to be viewed').'</p>';
  }   }
  if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {   if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
     $msg.='The problem '.$accessmsg;      $msg.='The problem '.$accessmsg;
  }   }
  $result.=$msg.'<br />';   $result.=$msg.'<br />';
     } elsif ($target eq 'tex') {      } elsif ($target eq 'tex') {
  $result.='\begin{document}\noindent \vskip 1 mm  \begin{minipage}{\textwidth}\vskip 0 mm';   $result.='\noindent \vskip 1 mm  \begin{minipage}{\textwidth}\vskip 0 mm';
  if ($status eq 'UNAVAILABLE') {   if ($status eq 'UNAVAILABLE') {
     $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';      $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
  } else {   } else {
Line 173  sub start_Task { Line 826  sub start_Task {
  }   }
     } elsif ($target eq 'grade' && !$env{'form.webgrade'}) {      } elsif ($target eq 'grade' && !$env{'form.webgrade'}) {
  if ($status eq 'NEEDS_CHECKIN') {   if ($status eq 'NEEDS_CHECKIN') {
     if (&proctor_check_auth($slot_name,$slot)) {      if(&proctor_check_auth($slot_name,$slot,'Task')
  #FIXME immeadiatly add this to the grading queue         && defined($Apache::inputtags::slot_name)) {
                         #      with slot->{'endtime'} for when grading can    my $result=
                         #      begin on this resource      &add_to_queue('gradingqueue',
  # FIXME I think the above is done by default,    {'type' => 'Task',
                         #        need to check that     'time' => time,
                         #        failure doesn't do this.     'slot' => 
      }         $Apache::inputtags::slot_name});
    &Apache::lonxml::debug("add_to_queue said $result");
       }
  }   }
     }      }
  } elsif ($target eq 'web') {   } elsif ($target eq 'web') {
     my $name= &Apache::structuretags::get_resource_name($parstack,$safeeval);  
     $result.="$head_tag_start<title>$name</title></head>      $result.=&preserve_grade_info();
               $body_tag_start \n $form_tag_start".      $result.=&internal_location(); 
       '<input type="hidden" name="submitted" value="yes" />';      $result.=$form_tag_start."\t".
     # if we are viewing someone else preserve that info   '<input type="hidden" name="submitted" value="yes" />';
     if (defined $env{'form.grade_symb'}) {      &Apache::lonxml::startredirection();
  foreach my $field ('symb','courseid','domain','username') {  
     $result .= '<input type="hidden" name="grade_'.$field.  
  '" value="'.$env{"form.grade_$field"}.'" />'."\n";  
  }  
     }  
     if ($Apache::lonhomework::history{'resource.status'} eq 'fail') {  
  $result.='<h1><font color="red">'.&mt('Did not pass').'</font></h1>';  
  $result.=&request_another_attempt_button();  
     }  
     if ($Apache::lonhomework::history{'resource.status'} eq 'pass') {  
  $result.='<h1><font color="green">'.&mt('Passed').'</font></h1>';  
     }  
  }   }
     } elsif ( ($target eq 'grade' && $env{'form.webgrade'}) ||      } elsif ( ($target eq 'grade' && $env{'form.webgrade'}) ||
       $target eq 'webgrade') {        $target eq 'webgrade') {
    my $webgrade='yes';
  if ($target eq 'webgrade') {   if ($target eq 'webgrade') {
     $result.=$head_tag_start.$body_tag_start.$form_tag_start;      $result .= '<div class="LC_task">'."\n";
     $result.='<input type="hidden" name="webgrade" value="yes" />';      $result.= "\n".'<div class="LC_GRADING_task">'."\n".
     $result.=&show_queue();   '<script type="text/javascript" 
                            src="/res/adm/includes/task_grading.js"></script>';
       #$result.='<br />Review'.&show_queue('reviewqueue');
       #$result.='<br />Grade'.&show_queue('gradingqueue');
  }   }
  my $todo=&get_from_queue();  
    my ($todo,$status_code,$msg)=&get_key_todo($target);
   
  if ($todo) {   if ($todo) {
     &setup_env_for_other_user($todo,$safeeval);      &setup_env_for_other_user($todo,$safeeval);
     my ($symb,$uname,$udom)=&decode_queue_key($todo);      my ($symb,$uname,$udom)=&decode_queue_key($todo);
     $result.="\n".'<table><tr><td>Found '.      if ($env{'request.state'} eq 'construct') {
  &Apache::lonnet::gettitle($symb).' for '.$uname.' at '.$udom.'</td></tr></table>';   $symb = $env{'request.uri'};
     $result.='<input type="hidden" name="gradingkey" value="'.      }
  &Apache::lonnet::escape($todo).'" />';      $result.="\n".'<p>'.
    &mt('Grading [_1] for [_2] at [_3]',
       &Apache::lonnet::gettitle($symb),$uname,$udom).'</p>';
       $form_tag_start.=
    '<input type="hidden" name="gradingkey" value="'.
    &escape($todo).'" />';
     $Apache::bridgetask::queue_key=$todo;      $Apache::bridgetask::queue_key=$todo;
     &Apache::structuretags::initialize_storage();      &Apache::structuretags::initialize_storage();
     &Apache::lonhomework::showhash(%Apache::lonhomework::history);      &Apache::lonhomework::showhash(%Apache::lonhomework::history);
     $result.="\n".'<table width="100%" style="width:100%" border="1">';      if ($target eq 'webgrade' && $status_code eq 'selected') {
    $form_tag_start.=
       '<input type="hidden" name="queuemode" value="selected" />';
       }
  } else {   } else {
     if ($target eq 'webgrade') {      if ($target eq 'webgrade') {
  $result.="\n".   $result.="\n";
     '<table><tr><td>No user to be graded.</td></tr></table>';   my $back='<p><a href="/adm/flip?postdata=return:">'.
       &mt('Return to resource').'</a></p>';
    if      ($status_code eq 'stop') {
       $result.='<b>'.&mt("Stopped grading.").'</b>'.$back;
    } elsif ($status_code eq 'cancel') {
       $result.='<b>'.&mt("Cancelled grading.").'</b>'.$back;
                   } elsif ($status_code eq 'terminated') {
                       $result.= '<b>'.&mt('Terminated grading').'</b><br />'.
                                 '<span class="LC_error">'.
                                 &mt('Grading for [_1] has not been saved because of a grading key mismatch.',
                                 '<tt>'.$env{'form.terminated'}.'</tt>').'</span><br />'.$back;
    } elsif ($status_code eq 'never_versioned') {
       $result.='<b>'.
    &mt("Requested user has never accessed the task.").
    '</b>'.$back;
    } elsif ($status_code =~ /still_open:(.*)/) {
       my $date = &Apache::lonlocal::locallocaltime($1);
       $result.='<b>'.
    &mt("Task is still open, will close at [_1].",$date).
    '</b>'.$back;
    } elsif ($status_code eq 'lock_failed') {
       $result.='<b>'.&mt("Failed to lock the requested record.")
    .'</b>'.$back;
    } elsif ($status_code eq 'unlock') {
       $result.='<b>'.&mt("Unlocked the requested record.")
    .'</b>'.$back;
       $result.=&show_queue($env{'form.queue'},1);
    } elsif ($status_code eq 'show_list') {
       $result.=&show_queue($env{'form.queue'},1);
    } elsif ($status_code eq 'select_user') {
       $result.=&select_user();
    } elsif ($status_code eq 'unable') {
       $result.='<b>'.&mt("Unable to aqcuire a user to grade.").'</b>'.$back;
    } elsif ($status_code eq 'not_allowed') {
       $result.='<b>'.&mt('Not allowed to grade the requested user.').' '.$msg.'</b>'.$back;
    } else {
       $result.='<b>'.&mt("No user to be graded.").'</b>'.$back;
    }
       }
       $webgrade='no';
    }
    if (!$todo || $env{'form.cancel'}) {
       my $bodytext=&Apache::lonxml::get_all_text("/task",$parser,$style);
    }
    if ($target eq 'webgrade' && defined($env{'form.queue'})) {
       if ($webgrade eq 'yes') {
    $result.=&submission_time_stamp();
       }
       $result.=$form_tag_start;
       $result.='<input type="hidden" name="webgrade" value="'.
    $webgrade.'" />';
       $result.='<input type="hidden" name="queue" value="'.
    $env{'form.queue'}.'" />';
       if ($env{'form.regrade'}) {
    $result.='<input type="hidden" name="regrade" value="'.
       $env{'form.regrade'}.'" />';
     }      }
     my $bodytext=&Apache::lonxml::get_all_text("/task",$parser);      if ($env{'form.chosensections'} || &section_restricted()) {
    my @chosen_sections = &get_allowed_sections();
    foreach my $sec (@chosen_sections) {
       $result.='<input type="hidden" name="chosensections" 
                                  value="'.$sec.'" />';
    }
       }
       if ($webgrade eq 'yes') { $result.=&webgrade_standard_info(); }
    } elsif ($target eq 'webgrade' 
    && $env{'request.state'} eq 'construct') {
       $result.=$form_tag_start;
       $result.='<input type="hidden" name="webgrade" value="'.
    $webgrade.'" />';
       $result.=&webgrade_standard_info();
    }
    if ($target eq 'webgrade') {
       $result.="\n".'<div id="LC_GRADING_criterialist">';
       &Apache::lonxml::startredirection();
       &start_delay();
       $dimension{$top}{'result'}=$result;
       undef($result);
    }
       } elsif ($target eq 'edit') {
    $result.=$form_tag_start.
       &Apache::structuretags::problem_edit_header();
    $Apache::lonxml::warnings_error_header=
       &mt("Editor Errors - these errors might not effect the running of the problem, but they will likely cause problems with further use of the Edit mode. Please use the EditXML mode to fix these errors.")."<br />";
    $result.= &Apache::edit::text_arg('Required number of passed optional elements to pass the Task:','OptionalRequired',$token,10)." <br />\n";
    $result.= &Apache::edit::insertlist($target,$token);
       } elsif ($target eq 'modified') {
    my $constructtag=
       &Apache::edit::get_new_args($token,$parstack,$safeeval,
    'OptionalRequired');
    if ($constructtag) {
       $result = &Apache::edit::rebuild_tag($token);
  }   }
     } else {      } else {
  # page_start returned a starting result, delete it if we don't need it   # page_start returned a starting result, delete it if we don't need it
Line 236  sub start_Task { Line 982  sub start_Task {
     return $result;      return $result;
 }  }
   
   sub get_task_end_time {
       my ($queue_entry,$symb,$udom,$uname) = @_;
   
       my $end_time;
       if (my $slot = &slotted_access($queue_entry)) {
    my %slot_data=&Apache::lonnet::get_slot($slot);
    $end_time = $slot_data{'endtime'};
       } else {
    $end_time = &Apache::lonhomework::due_date('0',$symb,
      $udom,$uname);
       }
       return $end_time;
   }
   
   sub get_key_todo {
       my ($target)=@_;
       my $todo;
   
       if ($env{'request.state'} eq 'construct') {
    my ($symb,$cid,$udom,$uname) = &Apache::lonnet::whichuser();
    my $gradingkey=&encode_queue_key($symb,$udom,$uname);
    return ($gradingkey);
       }
   
       if (defined($env{'form.reviewasubmission'})) {
    &Apache::lonxml::debug("review a submission....");
    $env{'form.queue'}='reviewqueue';
    return (undef,'show_list');
       }
   
       if (defined($env{'form.reviewagrading'})) {
    &Apache::lonxml::debug("review a grading....");
    $env{'form.queue'}='gradingqueue';
    return (undef,'show_list');
       }
   
       if (defined($env{'form.regradeasubmission'})) {
    &Apache::lonxml::debug("regrade a grading....");
    $env{'form.queue'}='none';
    return (undef,'select_user');
       }
   
   
       my $me=$env{'user.name'}.':'.$env{'user.domain'};
   
       #need to try both queues..
       if (defined($env{'form.regradeaspecificsubmission'}) &&
    defined($env{'form.gradinguser'})               &&
    defined($env{'form.gradingdomain'})               ) {
    my ($symb,$cid)=&Apache::lonnet::whichuser();
    my $cnum  = $env{'course.'.$cid.'.num'};
    my $cdom  = $env{'course.'.$cid.'.domain'};
    my $uname = &LONCAPA::clean_username($env{'form.gradinguser'});
    my $udom  = &LONCAPA::clean_domain($env{'form.gradingdomain'});
   
    if (&section_restricted()) {
       my $classlist=&get_limited_classlist();
       if (!&allow_grade_user($classlist->{$uname.':'.$udom})) {
    return (undef,'not_allowed',
    &mt("Requested student ([_1]) is in a section you aren't allowed to grade.",$uname.':'.$udom));
       }
    }
    my $gradingkey=&encode_queue_key($symb,$udom,$uname);
   
    my $queue;
   
    if      (&in_queue('gradingqueue',$symb,$cdom,$cnum,$udom,$uname)) {
       $env{'form.queue'} = $queue = 'gradingqueue';
    } elsif (&in_queue('reviewqueue' ,$symb,$cdom,$cnum,$udom,$uname)) {
       $env{'form.queue'} = $queue = 'reviewqueue';
    }
   
    if (!$queue) {
       $env{'form.queue'} = $queue = 'none';
       #not queued so doing either a re or pre grade
       my %status = &Apache::lonnet::restore($symb,$cid,$udom,$uname);
       if ($status{'resource.0.version'} < 1) {
    return (undef,'never_versioned');
       }
       return ($gradingkey);
    }
   
    if ($queue) {
       my $queue_entry = &get_queue_data($queue,$udom,$uname);
   
       my $end_time = &get_task_end_time($queue_entry,$symb,
         $udom,$uname);
       if ($end_time > time) {
    return (undef,"still_open:$end_time");
       }
    }
   
    my $who=&queue_key_locked($queue,$gradingkey);
    if ($who eq $me) {
       #already have the lock
       $env{'form.gradingkey'}=&escape($gradingkey);
       &Apache::lonxml::debug("already locked");
       return ($gradingkey);
    }
   
    if (!defined($who)) {
       if (&lock_key($queue,$gradingkey)) {
    &Apache::lonxml::debug("newly locked");
    return ($gradingkey);
       } else {
    return (undef,'lock_failed');
       }
    }
   
    #otherwise (defined($who) && $who ne $me) some else has it...
    return (undef,'not_allowed',
    &mt('Another user ([_1]) currently has the record for [_2] locked.',
       $who,$env{'form.gradinguser'}.':'.$env{'form.gradingdomain'}));
       }
   
   
       my $queue=$env{'form.queue'};
   
       if (!defined($queue)) {
    $env{'form.queue'}=$queue='gradingqueue';
       }
   
       my $gradingkey=&unescape($env{'form.gradingkey'});
   
       if ($env{'form.queue'} eq 'none') {
    if (defined($env{'form.gradingkey'})) {
       if ($target eq 'webgrade') {
    if ($env{'form.stop'}) {
       return (undef,'stop');
    } elsif ($env{'form.cancel'}) {
       return (undef,'cancel');
                   } elsif ($env{'form.terminated'}) {
                       return (undef, 'terminated');
    } elsif ($env{'form.next'}) {
       return (undef,'select_user');
    }
       }
       return ($gradingkey,'selected');
    } else {
       return (undef,'select_user');
    }
       }
       if (defined($env{'form.queue'}) && defined($env{'form.gradingkey'})
    && !defined($env{'form.gradingaction'}) 
    && $env{'form.queuemode'} eq 'selected') {
   
    my $who=&queue_key_locked($queue,$gradingkey);
    if ($who eq $me) {
       &Apache::lonxml::debug("Found a key was given to me");
       return ($gradingkey,'selected');
    } else {
       return (undef,'show_list');
    }
   
       }
   
       if ($target eq 'webgrade' && $env{'form.queuemode'} eq 'selected') {
    if ($env{'form.gradingaction'} eq 'resume') {
       delete($env{'form.gradingaction'});
       &Apache::lonxml::debug("Resuming a key");
       return ($gradingkey);
    } elsif ($env{'form.gradingaction'} eq 'unlock') {
       &Apache::lonxml::debug("Unlocking a key ".
        &check_queue_unlock($queue,$gradingkey,1));
       return (undef,'unlock');
    } elsif ($env{'form.gradingaction'} eq 'select') {
       &Apache::lonxml::debug("Locking a key");
       if (&lock_key($queue,$gradingkey)) {
    &Apache::lonxml::debug("Success $queue");
    return ($gradingkey);
       }
       &Apache::lonxml::debug("Failed $queue");
       return (undef,'lock_failed');
    }
       }
   
       if ($env{'form.queuemode'} ne 'selected') {
    # don't get something new from the queue if they hit the stop button
       if (!(($env{'form.cancel'} || $env{'form.stop'} || $env{'form.terminated'}) 
         && $target eq 'webgrade') 
       && !$env{'form.gradingaction'}) {
       &Apache::lonxml::debug("Getting anew $queue");
       return (&get_from_queue($queue));
    } else {
               if ($env{'form.terminated'}) {
                   return (undef,'terminated');
               } else {
                   return (undef,'stop');
               }
    }
       }
       return (undef,undef)
   }
   
   sub minimize_storage {
       foreach my $key (keys(%Apache::lonhomework::results)) {
    if ($key =~ /regrader$/) { next; }
    if ($Apache::lonhomework::results{$key} eq
       $Apache::lonhomework::history{$key}) {
       delete($Apache::lonhomework::results{$key});
    }
       }
   }
   
 sub end_Task {  sub end_Task {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
     my $result='';      my $result='';
     my $status=$Apache::inputtags::status['-1'];      my $status=$Apache::inputtags::status['-1'];
     my $version=$Apache::lonhomework::history{'resource.version'};      my ($version,$previous)=&get_version();
     if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||      if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
  $target eq 'tex') {   $target eq 'tex') {
  if (   if ($target eq 'web' || $target eq 'answer' || $target eq 'tex') {
     (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||  
     ($target eq 'answer') || ($target eq 'tex')  
    ) {  
     if ($target eq 'web') {      if ($target eq 'web') {
  if ($status eq 'CAN_ANSWER') {   if (&show_task($status,$previous)) {
     $result.="\n".'<table border="1">'.      $result.=&Apache::lonxml::endredirection();
  &Apache::inputtags::file_selector($version,   }
    if ($status eq 'CAN_ANSWER' && !$previous && 
       !$env{'form.donescreen'}) {
                       my ($portheader,$porttext);
                       if ($Apache::lonhomework::history{"resource.$version.0.bridgetask.portfiles"}) {
                           $portheader = &mt('Submit Additional Portfolio Files for Grading');
                           $porttext = &mt('Indicate which additional files from your portfolio are to be evaluated in grading this task.');
                       } else {
                           $portheader = &mt('Submit Portfolio Files for Grading');
                           $porttext = &mt('Indicate the files from your portfolio to be evaluated in grading this task.');
                       }
       $result.="\n".'<div>'.&Apache::lonhtmlcommon::start_pick_box().
    &Apache::inputtags::file_selector("$version.0",
   "bridgetask","*",    "bridgetask","*",
   'portfolioonly').    'portfolioonly',
   "</table>";                                                            '<h3>'.$portheader.'</h3><br />'.
     $result.=&Apache::inputtags::gradestatus('0');                                                            $porttext.'<br />').
    &Apache::lonhtmlcommon::end_pick_box().'</div>';
  }   }
     }    if (!$previous && $status ne 'SHOW_ANSWER' &&
     if ($target eq 'web' || $target eq 'webgrade') {      &show_task($status,$previous)) {
  $result.=&Apache::lonxml::xmlend().'</html>';      $result.=&Apache::inputtags::gradestatus('0',$target,1);
     }   }
   
    $result.='</form>';
   
    if (!$previous && $status ne 'SHOW_ANSWER' &&
       &show_task($status,$previous)) {
       my $action = &Apache::lonenc::check_encrypt($env{'request.uri'});
                       my $donetext = &mt('Done');
       $result.=<<DONEBUTTON;
   <form name="done" method="post" action="$action">
      <input type="hidden" name="donescreen" value="1" />
      <input type="submit" value="$donetext" />
   </form>
   DONEBUTTON
                   }
    if (&show_task($status,$previous) &&
       $Apache::lonhomework::history{"resource.$version.0.status"} =~ /^(pass|fail)$/) {
       my $bt_status=$Apache::lonhomework::history{"resource.$version.0.status"};
       my $title=&Apache::lonnet::gettitle($env{'request.uri'});
       my $start_time;
   
       my $slot_name=
    $Apache::lonhomework::history{"resource.$version.0.checkedin.slot"};
       if ($slot_name) {
    my %slot=&Apache::lonnet::get_slot($slot_name);
   
    $start_time=$slot{'starttime'}
       } else {
    $start_time= 
       &Apache::lonnet::EXT('resource.0.opendate');
       }
       $start_time=&Apache::lonlocal::locallocaltime($start_time);
   
       my $status = 
    "\n<div class='LC_$bt_status LC_criteria LC_task_overall_status'>\n\t";
       
       my $dim = $top;
       my %counts = &get_counts($dim,undef,$parstack,
        $safeeval);
       my $question_status ="\n\t<p>".
    &question_status_message(\%counts,-1).
    "</p>\n";
   
       if ($bt_status eq 'pass')  {
    $status.='<h2>'
                                   .&mt('You passed the [_1] given on [_2].',$title,$start_time)
                                   .'</h2>';
    $status.=$question_status;
       }
       if ($bt_status eq 'fail')  {
    $status.='<h2>'
                                   .&mt('You did not pass the [_1] given on [_2].',$title,$start_time)
                                   .'</h2>';
    $status.=$question_status;
    if (!$previous) {
       $status.=&add_request_another_attempt_button();
    }
       }
       
       $status.="\n".'</div>'."\n";
   
       foreach my $id (@{$dimension{$dim}{'criterias'}}) {
    my $type = $dimension{$dim}{'criteria.'.$id.'.type'};
    if ($type eq 'dimension') {
       $result.=$dimension{$id}{'result'};
       next;
    }
    my $criteria = 
       &nested_parse(\$dimension{$dim}{'criteria.'.$id},
     [@_]);
    $status .= &layout_web_Criteria($dim,$id,$criteria);
       }
   
       my $internal_location=&internal_location();
       $result=~s/\Q$internal_location\E/$status/;
    }
    $result.="\n</div>\n".
       &Apache::loncommon::end_page({'discussion' => 1});
       } elsif ($target eq 'answer') {
                   $result.="\n</div>\n";
               }
    }
   
    my $useslots = &Apache::lonnet::EXT("resource.0.useslots");
    my %queue_data = ('type' => 'Task',
     'time' => time,);
    if (defined($Apache::inputtags::slot_name)) {
       $queue_data{'slot'} = $Apache::inputtags::slot_name;
    } elsif (defined($Apache::lonhomework::history{"resource.$version.0.checkedin.slot"})) {
       $queue_data{'slot'} = $Apache::lonhomework::history{"resource.$version.0.checkedin.slot"};
  }   }
  if ($target eq 'grade' && !$env{'form.webgrade'}) {  
   
    if ($target eq 'grade' && !$env{'form.webgrade'} && !$previous
       && $status eq 'CAN_ANSWER') {
     my $award='SUBMITTED';      my $award='SUBMITTED';
     &Apache::essayresponse::file_submission('0','bridgetask',              my $uploadedflag=0;
     'portfiles',\$award);              my $totalsize=0;
               my @deletions = &Apache::loncommon::get_env_multiple('form.HWFILE'.$version.'_0_bridgetask_delete');
       &Apache::essayresponse::file_submission("$version.0",'bridgetask',
       \$award,\$uploadedflag,\$totalsize,\@deletions);
     if ($award eq 'SUBMITTED' &&      if ($award eq 'SUBMITTED' &&
  $Apache::lonhomework::results{"resource.$version.bridgetask.portfiles"}) {   $Apache::lonhomework::results{"resource.$version.0.bridgetask.portfiles"}) {
  $Apache::lonhomework::results{"resource.$version.tries"}=   $Apache::lonhomework::results{"resource.0.tries"}=
     1+$Apache::lonhomework::history{"resource.$version.tries"};      $Apache::lonhomework::results{"resource.$version.0.tries"}=
       1+$Apache::lonhomework::history{"resource.$version.0.tries"};
   
    $Apache::lonhomework::results{"resource.0.award"}=
       $Apache::lonhomework::results{"resource.$version.0.award"}=
       $award;
    $Apache::lonhomework::results{"resource.0.submission"}=
       $Apache::lonhomework::results{"resource.$version.0.submission"}='';
       } else {
                   unless($uploadedflag) {
                       delete($Apache::lonhomework::results{"resource.$version.0.bridgetask.portfiles"});
                   }
    $award = '';
     }      }
     $Apache::lonhomework::results{"resource.$version.award"}=$award;  
     &Apache::lonhomework::showhash(%Apache::lonhomework::results);      &Apache::lonhomework::showhash(%Apache::lonhomework::results);
     &Apache::structuretags::finalize_storage();      &Apache::structuretags::finalize_storage();
     if ($award eq 'SUBMITTED') {      if ($award eq 'SUBMITTED') {
  &add_to_queue();   &add_to_queue('gradingqueue',\%queue_data);
     }      }
  }   }
  if ($target eq 'grade' && $env{'form.webgrade'}) {   if ($target eq 'grade' && $env{'form.webgrade'} eq 'yes' 
       && exists($env{'form.cancel'})) {
       &check_queue_unlock($env{'form.queue'});
       &Apache::lonxml::debug(" cancelled grading .".$env{'form.queue'});
    } elsif ($target eq 'grade' && $env{'form.webgrade'} eq 'yes' 
    && !exists($env{'form.cancel'})) {
     my $optional_required=      my $optional_required=
  &Apache::lonxml::get_param('OptionalRequired',$parstack,   &Apache::lonxml::get_param('OptionalRequired',$parstack,
    $safeeval);     $safeeval);
Line 286  sub end_Task { Line 1357  sub end_Task {
     my $ungraded=0;      my $ungraded=0;
     my $review=0;         my $review=0;   
     &Apache::lonhomework::showhash(%Apache::lonhomework::results);      &Apache::lonhomework::showhash(%Apache::lonhomework::results);
     foreach my $dim_id (@Apache::bridgetask::dimensionlist) {      my $dim = $top;
       foreach my $id (@{$dimension{$dim}{'criterias'}}) {
    my $link=&link($id);
   
    my $type = $dimension{$dim}{'criteria.'.$id.'.type'};
   
    if ($type eq 'criteria') {
       # dimensional 'criteria' don't get assigned grades
       $Apache::lonhomework::results{"resource.$version.0.$id.status"}=$env{'form.HWVAL_'.$link};
       $Apache::lonhomework::results{"resource.$version.0.$id.comment"}=$env{'form.HWVAL_comment_'.$link};
    } 
  my $status=   my $status=
     $Apache::lonhomework::results{"resource.$dim_id.status"};      $Apache::lonhomework::results{"resource.$version.0.$id.status"};
  my $mandatory=   my $mandatory=($dimension{$dim}{'criteria.'.$id.'.mandatory'} ne 'N');
     ($Apache::bridgetask::dimensionmandatory{$dim_id} ne 'N');  
  if ($status eq 'pass') {   if ($status eq 'pass') {
     if (!$mandatory) { $optional_passed++; }      if (!$mandatory) { $optional_passed++; }
  } elsif ($status eq 'fail') {   } elsif ($status eq 'fail') {
     if ($mandatory) { $mandatory_failed++; }      if ($mandatory) { $mandatory_failed++; }
  } elsif ($status eq 'ungraded') {  
     $ungraded++;  
  } elsif ($status eq 'review') {   } elsif ($status eq 'review') {
     $review++;      $review++;
  }   } elsif ($status eq 'ungraded') {
       $ungraded++;
    } else {
       $ungraded++;
    }
     }      }
     if ($optional_passed < $optional_required) {      if ($optional_passed < $optional_required) {
  $mandatory_failed++;   $mandatory_failed++;
     }      }
     &Apache::lonxml::debug("all dim ".join(':',@Apache::bridgetask::dimensionlist)."results -> m_f $mandatory_failed o_p $optional_passed u $ungraded r $review");      &Apache::lonxml::debug(" task results -> m_f $mandatory_failed o_p $optional_passed u $ungraded r $review");
     $Apache::lonhomework::results{'resource.grader'}=      $Apache::lonhomework::results{'resource.0.regrader'}=
  $env{'user.name'}.'@'.$env{'user.domain'};   $env{'user.name'}.':'.$env{'user.domain'};
     if ($review) {      if ($review) {
  $Apache::lonhomework::results{'resource.status'}='review';   $Apache::lonhomework::results{"resource.$version.0.status"}='review';
  &move_to_review_queue();  
     } elsif ($ungraded) {      } elsif ($ungraded) {
  $Apache::lonhomework::results{'resource.status'}='ungraded';   $Apache::lonhomework::results{"resource.$version.0.status"}='ungraded';
  &check_queue_unlock();  
     } elsif ($mandatory_failed) {      } elsif ($mandatory_failed) {
  $Apache::lonhomework::results{'resource.status'}='fail';   $Apache::lonhomework::results{"resource.$version.0.status"}='fail';
  $Apache::lonhomework::results{"resource.$version.award"}='EXACT_ANS';   $Apache::lonhomework::results{"resource.$version.0.solved"}='incorrect_by_override';
  &remove_from_queue();   $Apache::lonhomework::results{"resource.$version.0.award"}='INCORRECT';
     } else {   $Apache::lonhomework::results{"resource.$version.0.awarded"}='0';
  $Apache::lonhomework::results{'resource.status'}='pass';   my ($symb,$courseid,$udom,$uname)=&Apache::lonnet::whichuser();
  $Apache::lonhomework::results{"resource.$version.award"}='INCORRECT';  
  &remove_from_queue();   if ($env{'form.regrade'} ne 'yes') {
       $Apache::lonhomework::results{"resource.$version.0.bridgetask.portfiles"}=
    $Apache::lonhomework::history{"resource.$version.0.bridgetask.portfiles"};
       &Apache::grades::version_portfiles(
          \%Apache::lonhomework::results,
          ["$version.0.bridgetask"],$courseid,
          $symb,$udom,$uname,
          ["$version.0.bridgetask"]);
    }
       } else {
    $Apache::lonhomework::results{"resource.$version.0.status"}='pass';
    $Apache::lonhomework::results{"resource.$version.0.solved"}='correct_by_override';
    $Apache::lonhomework::results{"resource.$version.0.award"}='EXACT_ANS';
    $Apache::lonhomework::results{"resource.$version.0.awarded"}='1';
    my ($symb,$courseid,$udom,$uname)=&Apache::lonnet::whichuser();
    if ($env{'form.regrade'} ne 'yes') {
       $Apache::lonhomework::results{"resource.$version.0.bridgetask.portfiles"}=
    $Apache::lonhomework::history{"resource.$version.0.bridgetask.portfiles"};
       &Apache::grades::version_portfiles(
          \%Apache::lonhomework::results,
          ["$version.0.bridgetask"],$courseid,
          $symb,$udom,$uname,
          ["$version.0.bridgetask"]);
    }
       }
       $Apache::lonhomework::results{"resource.0.status"}=
    $Apache::lonhomework::results{"resource.$version.0.status"};
       if (defined($Apache::lonhomework::results{"resource.$version.0.awarded"})) {
    $Apache::lonhomework::results{"resource.0.award"}=
       $Apache::lonhomework::results{"resource.$version.0.award"};
    $Apache::lonhomework::results{"resource.0.awarded"}=
       $Apache::lonhomework::results{"resource.$version.0.awarded"};
    $Apache::lonhomework::results{"resource.0.solved"}=
       $Apache::lonhomework::results{"resource.$version.0.solved"};
     }      }
       &minimize_storage();
               my ($canstore,$domain,$name,$symb,$courseid);
               ($symb,$courseid,$domain,$name) = &Apache::lonnet::whichuser();
   
               if ($env{'form.gradingkey'}) {
                   my $todo=&unescape($env{'form.gradingkey'});
                   my ($keysymb,$uname,$udom)=&decode_queue_key($todo);
                   if ($symb eq $keysymb) {
                       if (($domain eq $udom) && ($name eq $uname)) {
                           $canstore = 1;           
                       }
                   }
               }
               if ($canstore) {
           &Apache::structuretags::finalize_storage();
                   my @interval = &Apache::lonnet::EXT("resource.0.interval");
                   if ($interval[0] =~ /^\d+/ && $interval[1] eq 'resource') {
                       my $key=$courseid."\0".$symb;
                       my %times=&Apache::lonnet::get('firstaccesstimes',
                                                      [$key],$domain,$name);
                       if ($times{$key}) {
                           my $delresult.=&Apache::lonnet::del('firstaccesstimes',
                                                               [$key],$domain,$name);
                       }
                   }
           # data stored, now handle queue
           if ($review) {
       if ($env{'form.queue'} eq 'reviewqueue') {
           &check_queue_unlock($env{'form.queue'});
           &Apache::lonxml::debug(" still needs review not changing status.");
       } else {
           if ($env{'form.queue'} ne 'none') {
       &move_between_queues($env{'form.queue'},'reviewqueue');
           } else {
       &add_to_queue('reviewqueue',\%queue_data);
           }
       }
           } elsif ($ungraded) {
       if ($env{'form.queue'} eq 'reviewqueue') {
           &Apache::lonxml::debug("moving back.");
           &move_between_queues($env{'form.queue'},
        'gradingqueue');
       } elsif ($env{'form.queue'} eq 'none' ) {
           &add_to_queue('gradingqueue',\%queue_data);
       } else {
           &check_queue_unlock($env{'form.queue'});
       }
           } elsif ($mandatory_failed) {
       &remove_from_queue($env{'form.queue'}); 
           } else {
       &remove_from_queue($env{'form.queue'});
           }
               } else {
                   &check_queue_unlock($env{'form.queue'});
                   $env{'form.terminated'} = $name.':'.$domain;
               }
           }
    if (exists($Apache::lonhomework::results{'INTERNAL_store'})) {
       # instance generation occurred and hasn't yet been stored
     &Apache::structuretags::finalize_storage();      &Apache::structuretags::finalize_storage();
  }   }
     } elsif ($target eq 'webgrade') {      } elsif ($target eq 'webgrade') {
  $result.="</table>\n<hr />";   if (&nest()) {
       &Apache::lonxml::endredirection();
       &end_delay();
       $result.=$dimension{$top}{'result'};
    } else {
       $result.=&Apache::lonxml::endredirection();
    }
    my $dim = $top;
    foreach my $id (@{$dimension{$dim}{'criterias'}} ) {
       my $type = $dimension{$dim}{'criteria.'.$id.'.type'};
       if ($type eq 'dimension') {
    # dimensional 'criteria' don't get assigned grades
    next;
       } else {
    my $criteria =&nested_parse(\$dimension{$dim}{'criteria.'.$id},
        [@_]);
    $criteria = &layout_webgrade_Criteria($dim,$id,$criteria);
    my $internal_location=&internal_location($id);
    if ($result =~ m/\Q$internal_location\E/) {
       $result=~s/\Q$internal_location\E/$criteria/;
    } else {
       $result.=$criteria;
    }
   
       }
    }
           $result.="</div>";
  #$result.='<input type="submit" name="next" value="'.   #$result.='<input type="submit" name="next" value="'.
  #    &mt('Save &amp; Next').'" /> ';   #    &mt('Save &amp; Next').'" /> ';
  #$result.='<input type="submit" name="end" value="'.   #$result.='<input type="submit" name="end" value="'.
Line 334  sub end_Task { Line 1533  sub end_Task {
  #    &mt('Throw Away &amp; Stop Grading').'" /> ';   #    &mt('Throw Away &amp; Stop Grading').'" /> ';
  #$result.='<input type="submit" name="save" value="'.   #$result.='<input type="submit" name="save" value="'.
  #    &mt('Save Partial Grade and Continue Grading').'" /> ';   #    &mt('Save Partial Grade and Continue Grading').'" /> ';
  $result.='</form>'.&Apache::loncommon::endbodytag().'</html>';   $result.='</form>'."\n</div>\n</div>\n".
       &Apache::loncommon::end_page();
     } elsif ($target eq 'meta') {      } elsif ($target eq 'meta') {
  $result.='<parameter part="0" package="Task"></parameter>'."\n";   $result.=&Apache::response::meta_package_write('Task');
  #$result.=&Apache::response::meta_part_order();          $result.=&Apache::response::meta_stores_write('solved','string',
  #$result.=&Apache::response::meta_response_order();        'Problem Status');
    $result.=&Apache::response::meta_stores_write('tries','int_zeropos',
         'Number of Attempts');
    $result.=&Apache::response::meta_stores_write('awarded','float',
         'Partial Credit Factor');
    $result.=&Apache::response::meta_stores_write('status','string',
         'Bridge Task Status');
       } elsif ($target eq 'edit') {
    $result.= &Apache::structuretags::problem_edit_footer();
     }      }
       &Apache::structuretags::reset_problem_globals('Task');
     undef($Apache::lonhomework::parsing_a_task);      undef($Apache::lonhomework::parsing_a_task);
       if ( ($target eq 'grade' && $env{'form.webgrade'}) ||
             $target eq 'webgrade') {
           delete($env{'form.grade_symb'});
           delete($env{'form.grade_domain'});
           delete($env{'form.grade_username'});
           delete($env{'form.grade_courseid'});
       }
     return $result;      return $result;
 }  }
   
 sub move_to_review_queue {  sub move_between_queues {
     &Apache::lonxml::debug("Want to move");      my ($src_queue,$dest_queue)=@_;
       my $cur_data;
       if ($src_queue ne 'none') {
    $cur_data=&get_queue_data($src_queue);
    if (!$cur_data) { return 'not_exist'; }
       } else {
    $cur_data = ['none'];
       }
       my $result=&add_to_queue($dest_queue,$cur_data);
       if ($result ne 'ok') {
    return $result;
       }
       &check_queue_unlock($src_queue);
       return &remove_from_queue($src_queue);
 }  }
   
 sub check_queue_unlock {  sub check_queue_unlock {
     &Apache::lonxml::debug("Want to unlock?");      my ($queue,$key,$allow_not_me)=@_;
       if ($queue eq 'none') { return 'ok'; }
       my ($symb,$cid,$udom,$uname)=&Apache::lonnet::whichuser();
       if (!defined($key)) {
    $key="$symb\0queue\0$uname:$udom";
       }
       my $cnum=$env{'course.'.$cid.'.num'};
       my $cdom=$env{'course.'.$cid.'.domain'};
       my $me=$env{'user.name'}.':'.$env{'user.domain'};
       my $who=&queue_key_locked($queue,$key,$cdom,$cnum);
       if  ($who eq $me) {
    &Apache::lonxml::debug("unlocking my own $who");
    return &Apache::lonnet::del($queue,["$key\0locked"],$cdom,$cnum);
       } elsif ($allow_not_me) {
    &Apache::lonxml::debug("unlocking $who by $me");
    return &Apache::lonnet::del($queue,["$key\0locked"],$cdom,$cnum);
       }
       return 'not_owner';
   }
   
   sub in_queue {
       my ($queue,$symb,$cdom,$cnum,$udom,$uname)=@_;
       if ($queue eq 'none') { return 0; }
       if (!defined($symb) || !defined($cdom) || !defined($cnum)
    || !defined($udom) || !defined($uname)) {
    ($symb,my $cid,$udom,$uname)=&Apache::lonnet::whichuser();
    $cnum=$env{'course.'.$cid.'.num'};
    $cdom=$env{'course.'.$cid.'.domain'};
       }
   
       my $key=&encode_queue_key($symb,$udom,$uname);
       my %results = &Apache::lonnet::get($queue,[$key],$cdom,$cnum);
   
       if (defined($results{$key})) {
    return 1;
       }
       return 0;
 }  }
   
 sub remove_from_queue {  sub remove_from_queue {
     &Apache::lonxml::debug("Want to remove. Done?");      my ($queue,$symb,$cdom,$cnum,$udom,$uname)=@_;
       if ($queue eq 'none') { return 'ok'; }
       if (!defined($symb) || !defined($cdom) || !defined($cnum)
    || !defined($udom) || !defined($uname)) {
    ($symb,my $cid,$udom,$uname)=&Apache::lonnet::whichuser();
    $cnum=$env{'course.'.$cid.'.num'};
    $cdom=$env{'course.'.$cid.'.domain'};
       }
       if (!&in_queue($queue,$symb,$cdom,$cnum,$udom,$uname)) {
    return 'ok';
       }
       my $key=&encode_queue_key($symb,$udom,$uname);
       my @keys=($key,"$key\0locked");
       return &Apache::lonnet::del($queue,\@keys,$cdom,$cnum);
 }  }
   
 sub setup_env_for_other_user {  sub setup_env_for_other_user {
     my ($queue_key,$safeeval)=@_;      my ($queue_key,$safeeval)=@_;
     my ($symb,$uname,$udom)=&decode_queue_key($queue_key);      my ($symb,$uname,$udom)=&decode_queue_key($queue_key);
       &Apache::lonxml::debug("setup_env for $queue_key");
     $env{'form.grade_symb'}=$symb;      $env{'form.grade_symb'}=$symb;
     $env{'form.grade_domain'}=$udom;      $env{'form.grade_domain'}=$udom;
     $env{'form.grade_username'}=$uname;      $env{'form.grade_username'}=$uname;
Line 366  sub setup_env_for_other_user { Line 1645  sub setup_env_for_other_user {
     &Apache::lonxml::initialize_rndseed($safeeval);      &Apache::lonxml::initialize_rndseed($safeeval);
 }  }
   
   sub get_queue_data {
       my ($queue,$udom,$uname)=@_;
       my ($symb,$cid,$other_udom,$other_uname)=&Apache::lonnet::whichuser();
       if (!$uname || !$udom) {
    $uname=$other_uname;
    $udom =$other_udom;
       }
       my $cnum=$env{'course.'.$cid.'.num'};
       my $cdom=$env{'course.'.$cid.'.domain'};
       my $todo="$symb\0queue\0$uname:$udom";
       my ($key,$value)=&Apache::lonnet::get($queue,[$todo],$cdom,$cnum);
       if ($key eq $todo && ref($value)) {
    return $value;
       }
       return undef;
   }
   
   
   sub check_queue_for_key {
       my ($cdom,$cnum,$queue,$todo)=@_;
   
       my %results=
    &Apache::lonnet::get($queue,[$todo,"$todo\0locked"],$cdom,$cnum);
       
       if (exists($results{$todo}) && ref($results{$todo})) {
    if (defined($results{"$todo\0locked"})) {
       return 'locked';
    }
    if (my $slot=&slotted_access($results{$todo})) {
       my %slot_data=&Apache::lonnet::get_slot($slot);
       if ($slot_data{'endtime'} > time) { 
    return 'in_progress';
       }
    } else {
       my ($symb) = &decode_queue_key($todo);
       my $due_date = &Apache::lonhomework::due_date('0',$symb);
       if ($due_date > time) {
    return 'in_progress';
       }
    }
    return 'enqueued';
       }
       return undef;
   }
   
 sub add_to_queue {  sub add_to_queue {
     my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();      my ($queue,$user_data)=@_;
       if ($queue eq 'none') { return 'ok'; }
       my ($symb,$cid,$udom,$uname)=&Apache::lonnet::whichuser();
       if (!$cid || $env{'request.state'} eq 'construct') {
    return 'no_queue';
       }
     my $cnum=$env{'course.'.$cid.'.num'};      my $cnum=$env{'course.'.$cid.'.num'};
     my $cdom=$env{'course.'.$cid.'.domain'};      my $cdom=$env{'course.'.$cid.'.domain'};
     my %data;      my %data;
     $data{"$symb\0queue\0$uname\@$udom"}=[$Apache::inputtags::slot_name];      $data{"$symb\0queue\0$uname:$udom"}=$user_data;
     &Apache::lonnet::put('gradingqueue',\%data,$cdom,$cnum);      return &Apache::lonnet::cput($queue,\%data,$cdom,$cnum);
 }  }
   
   sub get_limited_classlist {
       my ($sections) = @_;
   
       my $classlist = &Apache::loncoursedata::get_classlist();
       foreach my $student (keys(%$classlist)) {
    if ( $classlist->{$student}[&Apache::loncoursedata::CL_STATUS()]
        ne 'Active') {
       delete($classlist->{$student});
           }
       }
   
       if (ref($sections) && !grep {$_ eq 'all'} (@{ $sections })) {
    foreach my $student (keys(%$classlist)) {
       my $section  = 
    $classlist->{$student}[&Apache::loncoursedata::CL_SECTION()];
       if (! grep {$_ eq $section} (@{ $sections })) {
    delete($classlist->{$student});
       }
    }
       }
       return $classlist;
   }
   
   
 sub show_queue {  sub show_queue {
       my ($queue,$with_selects)=@_;
     my $result;      my $result;
     my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();      my ($symb,$cid,$udom,$uname)=&Apache::lonnet::whichuser();
     my $cnum=$env{'course.'.$cid.'.num'};      my $cnum=$env{'course.'.$cid.'.num'};
     my $cdom=$env{'course.'.$cid.'.domain'};      my $cdom=$env{'course.'.$cid.'.domain'};
   
       my @chosen_sections = &get_allowed_sections();
   
       my $classlist = &get_limited_classlist(\@chosen_sections);
   
       if (!(grep(/^all$/,@chosen_sections))) {
    $result.='<p>'
                   .&mt('Showing only sections [_1].'
                       ,'<tt>'.join(', ',@chosen_sections).'</tt>')
                   ."</p>\n";
       }
   
       my ($view,$view_section);
       my $scope = $env{'request.course.id'};
       if (!($view=&Apache::lonnet::allowed('vgr',$scope))) {
    $scope .= '/'.$env{'request.course.sec'};
    if ( $view = &Apache::lonnet::allowed('vgr',$scope)) {
       $view_section=$env{'request.course.sec'};
    } else {
       undef($view);
    }
       }
   
       $result .= 
    '<p><a href="/adm/flip?postdata=return:">'.
    &mt('Return to resource').'</a></p><hr />'.
    "\n<h3>".&mt('Current Queue - [_1]',$queue)."</h3>";
     my $regexp="^$symb\0";      my $regexp="^$symb\0";
     my %queue=&Apache::lonnet::dump('gradingqueue',$cdom,$cnum,$regexp);      my %queue=&Apache::lonnet::dump($queue,$cdom,$cnum,$regexp);
     $result.="\n<h3>Current Queue</h3><table><tr><th>resource</th>".      my ($tmp)=%queue;
  "<th>user</th><th>type</th><th>data</th></tr>";      if ($tmp=~/^error: 2 /) {
    $result.=
       &Apache::loncommon::start_data_table().
       &Apache::loncommon::start_data_table_row().
       '<td>'.&mt('Empty').'</td>'.
       &Apache::loncommon::end_data_table_row().
       &Apache::loncommon::end_data_table();
    return $result;
       }
       my $title=&Apache::lonnet::gettitle($symb);
       $result.=
    &Apache::loncommon::start_data_table().
    &Apache::loncommon::start_data_table_header_row();
       if ($with_selects) { $result.='<th>'.&mt('Status').'</th><th></th>'; }
       $result.='<th>'.&mt('User').'</th><th>'.&mt('Data').'</th>'.
    &Apache::loncommon::end_data_table_header_row();
     foreach my $key (sort(keys(%queue))) {      foreach my $key (sort(keys(%queue))) {
  if ($key=~/locked$/) {   my ($symb,$uname,$udom) = &decode_queue_key($key);
     my ($symb,$uname,$udom) = &decode_queue_key($key);   next if (!defined($classlist->{$uname.':'.$udom}));
     my $title=&Apache::lonnet::gettitle($symb);   next if (!&allow_grade_user($classlist->{$uname.':'.$udom}));
     $result.="<tr><td>$title</td><td>$uname</td><td>";  
     $result.='<td>lock</td><td>'.$queue{$key}.'</td></tr>';   my $section = $classlist->{$uname.':'.$udom}[&Apache::loncoursedata::CL_SECTION()];
  } elsif ($key=~/timestamp$/) {  
     my ($symb,undef) = split("\0",$key);   my $can_view=1;
     my $title=&Apache::lonnet::gettitle($symb);   if (!$view
     $result.="<tr><td>$title</td><td></td><td>";      || ($view_section && !$section)
     $result.='<td>last queue modification time</td><td>'.      || ($view_section && $section && ($view_section ne $section))) {
       $can_view=0;
    }
   
    if ($key=~/locked$/ && !$with_selects) {
       $result.= &Apache::loncommon::start_data_table_row().
    "<td>$uname</td>";
       $result.='<td>'.$queue{$key}.'</td></tr>';
    } elsif ($key=~/timestamp$/ && !$with_selects) {
       $result.=&Apache::loncommon::start_data_table_row()."<td></td>";
       $result.='<td>'.
  &Apache::lonlocal::locallocaltime($queue{$key})."</td></tr>";   &Apache::lonlocal::locallocaltime($queue{$key})."</td></tr>";
  } else {   } elsif ($key!~/(timestamp|locked)$/) {
     my ($symb,$uname,$udom) = &decode_queue_key($key);      $result.= &Apache::loncommon::start_data_table_row();
     my $title=&Apache::lonnet::gettitle($symb);      my ($end_time,$slot_text);
     $result.="<tr><td>$title</td><td>$uname</td><td>";      if (my $slot=&slotted_access($queue{$key})) {
     my $slot=$queue{$key}->[0];   my %slot_data=&Apache::lonnet::get_slot($slot);
     my %slot_data=&Apache::lonnet::get_slot($slot);   $end_time = $slot_data{'endtime'};
     $result.='<td>queue entry</td><td>End time: '.   $slot_text = &mt('Slot: [_1]',$slot);
  &Apache::lonlocal::locallocaltime($slot_data{'endtime'}).      } else {
  "</td></tr>";   $end_time = &Apache::lonhomework::due_date('0',$symb);
    $slot_text = '';
       }
       if ($with_selects) {
    my $ekey=&escape($key);
    my ($action,$description,$status)=('select',&mt('Select'));
    if (exists($queue{"$key\0locked"})) {
       my ($locker,$time) = 
    &get_lock_info($queue{"$key\0locked"});
       if ($time) {
    $time = 
       &Apache::lonnavmaps::timeToHumanString($time,
      'start');
       }
       my $me=$env{'user.name'}.':'.$env{'user.domain'};
       $status=&mt('Locked by [_1] [_2]','<tt>'.$locker.'</tt>',$time);
       if ($me eq $locker) {
    ($action,$description)=('resume',&mt('Resume'));
       } else {
    ($action,$description)=('unlock',&mt('Unlock'));
       }
    }
    my $seclist;
    foreach my $sec (@chosen_sections) {
       $seclist.='<input type="hidden" name="chosensections" 
                                  value="'.$sec.'" />';
    }
    if ($can_view && ($end_time ne '' && time > $end_time)) {
       $result.=(<<FORM);
   <td>$status</td>
   <td>
   <form style="display: inline" method="post" action="">
    <input type="hidden" name="gradingkey" value="$ekey" />
    <input type="hidden" name="queue" value="$queue" />
    <input type="hidden" name="gradingaction" value="$action" />
    <input type="hidden" name="webgrade" value="no" />
    <input type="hidden" name="queuemode" value="selected" />
    <input type="submit" name="submit" value="$description" />
    $seclist
   </form>
   </td>
   FORM
                   } elsif (!$can_view && ($end_time ne '' && time > $end_time)) {
       $result.='<td>'.&mt("Not gradable").'</td><td>&nbsp;</td>'
                   } else {
       $result.='<td>'.&mt("In Progress").'</td><td>&nbsp;</td>'
    }
       }
       $result.= "<td>".$classlist->{$uname.':'.$udom}[&Apache::loncoursedata::CL_FULLNAME()].
    " <tt>($uname:$udom)</tt> </td>";
               $result.='<td>'.$slot_text.' '
                       .&mt('End time: [_1]'
                           ,&Apache::lonlocal::locallocaltime($end_time))
                       .'</td>'
                       .&Apache::loncommon::end_data_table_row();
  }   }
     }      }
     $result.="</table><hr />\n";      $result.= &Apache::loncommon::end_data_table()."<hr />\n";
     return $result;      return $result;
 }  }
   
   sub get_allowed_sections {
       my @chosen_sections;
       if (&section_restricted()) {
    @chosen_sections = ($env{'request.course.sec'});
       } else {
    @chosen_sections =
       &Apache::loncommon::get_env_multiple('form.chosensections');
       }
   
       return @chosen_sections;
   }
   
   sub section_restricted {
       my $cid =(&Apache::lonnet::whichuser())[1];
       return (lc($env{'course.'.$cid.'.task_grading'}) eq 'section'
       && $env{'request.course.sec'} ne '' );
   }
   
   sub allow_grade_user {
       my ($classlist_entry) = @_;
   
       if (&section_restricted()
    && $env{'request.course.sec'} ne
         $classlist_entry->[&Apache::loncoursedata::CL_SECTION()]) {
    return 0;
       }
       return 1;
   }
   
   sub get_queue_counts {
       my ($queue)=@_;
       my $result;
       my ($symb,$cid,$udom,$uname)=&Apache::lonnet::whichuser();
       my $cnum=$env{'course.'.$cid.'.num'};
       my $cdom=$env{'course.'.$cid.'.domain'};
   
       my $classlist=&get_limited_classlist();
   
       my $regexp="^$symb\0";
       my %queue=&Apache::lonnet::dump($queue,$cdom,$cnum,$regexp);
       my ($tmp)=%queue;
       if ($tmp=~/^error: 2 /) {
    return (0,0,0);
       }
   
       my ($entries,$ready_to_grade,$locks)=(0,0,0);
       my %slot_cache;
       foreach my $key (sort(keys(%queue))) {
    my ($symb,$uname,$udom) = &decode_queue_key($key);
    next if (!defined($classlist->{$uname.':'.$udom}));
    next if (!&allow_grade_user($classlist->{$uname.':'.$udom}));
   
    if ($key=~/locked$/) {
       $locks++;
    } elsif ($key=~/timestamp$/) {
       #ignore
    } elsif ($key!~/(timestamp|locked)$/) {
       $entries++;
       if (my $slot=&slotted_access($queue{$key})) {
    if (!exists($slot_cache{$slot})) {
       my %slot_data=&Apache::lonnet::get_slot($slot);
       $slot_cache{$slot} = \%slot_data;
    }
    if (time > $slot_cache{$slot}{'endtime'}) {
       $ready_to_grade++;
    }
       } else {
    my $due_date = &Apache::lonhomework::due_date('0',$symb);
    if ($due_date ne '' && time > $due_date) {
       $ready_to_grade++;
    }
       }
    }
       }
       return ($entries,$ready_to_grade,$locks);
   }
   
   sub encode_queue_key {
       my ($symb,$udom,$uname)=@_;
       return "$symb\0queue\0$uname:$udom";
   }
   
 sub decode_queue_key {  sub decode_queue_key {
     my ($key)=@_;      my ($key)=@_;
     my ($symb,undef,$user) = split("\0",$key);      my ($symb,undef,$user) = split("\0",$key);
     my ($uname,$udom) = split('@',$user);      my ($uname,$udom) = split(':',$user);
     return ($symb,$uname,$udom);      return ($symb,$uname,$udom);
 }  }
   
 sub queue_key_locked {  sub queue_key_locked {
     my ($key,$cdom,$cnum)=@_;      my ($queue,$key,$cdom,$cnum)=@_;
       if (!defined($cdom) || !defined($cnum)) {
    my (undef,$cid)=&Apache::lonnet::whichuser();
    $cnum=$env{'course.'.$cid.'.num'};
    $cdom=$env{'course.'.$cid.'.domain'};
       }
     my ($key_locked,$value)=      my ($key_locked,$value)=
  &Apache::lonnet::get('gradingqueue',["$key\0locked"],$cdom,$cnum);   &Apache::lonnet::get($queue,["$key\0locked"],$cdom,$cnum);
     if ($key_locked eq "$key\0locked") {      if ($key_locked eq "$key\0locked") {
  return $value;   return &get_lock_info($value);
       }
       return undef;
   }
   
   sub slotted_access {
       my ($queue_entry) = @_;
       if (ref($queue_entry) eq 'ARRAY') {
    if (defined($queue_entry->[0])) {
       return $queue_entry->[0];
    }
    return undef;
       } elsif (ref($queue_entry) eq 'HASH') {
    if (defined($queue_entry->{'slot'})) {
       return $queue_entry->{'slot'};
    }
    return undef;
     }      }
     return undef;      return undef;
 }  }
   
 sub pick_from_queue_data {  sub pick_from_queue_data {
     my ($check_section,$queue,$cdom,$cnum)=@_;      my ($queue,$check_section,$queuedata,$cdom,$cnum,$classlist)=@_;
     foreach my $key (keys(%$queue)) {      my @possible; # will hold queue entries that are valid to be selected
       foreach my $key (keys(%$queuedata)) {
    if ($key =~ /\0locked$/) { next; }
    if ($key =~ /\0timestamp$/) { next; }
   
  my ($symb,$uname,$udom)=&decode_queue_key($key);   my ($symb,$uname,$udom)=&decode_queue_key($key);
    next if (!defined($classlist->{$uname.':'.$udom}));
    next if (!&allow_grade_user($classlist->{$uname.':'.$udom}));
   
  if ($check_section) {   if ($check_section) {
     my $section=&Apache::lonnet::getsection($uname,$udom);      my $section =
    $classlist->{$uname.':'.$udom}[&Apache::loncoursedata::CL_SECTION()];
     if ($section eq $check_section) {      if ($section eq $check_section) {
  &Apache::lonnet::logthis("my sec");   &Apache::lonxml::debug("my sec");
  next;   next;
     }      }
  }   }
  my $slot=$queue->{$key}[0];   my $end_time;
  my %slot_data=&Apache::lonnet::get_slot($slot);   if (my $slot=&slotted_access($queuedata->{$key})) {
  if ($slot_data{'endtime'} > time) {       &Apache::lonxml::debug("looking at slot $slot");
     &Apache::lonnet::logthis("not time");      my %slot_data=&Apache::lonnet::get_slot($slot);
     next;      if ($slot_data{'endtime'} < time) { 
    $end_time = $slot_data{'endtime'};
       } else {
    &Apache::lonxml::debug("not time ".$slot_data{'endtime'});
    next;
       }
    } else {
       my $due_date = &Apache::lonhomework::due_date('0',$symb);
       if ($due_date < time) {
    $end_time = $due_date;
       } else {
    &Apache::lonxml::debug("not time $due_date");
    next;
       }
  }   }
  if (&queue_key_locked($key,$cdom,$cnum)) {  
     &Apache::lonnet::logthis("someone already has um.");   if (exists($queuedata->{"$key\0locked"})) {
       &Apache::lonxml::debug("someone already has um.");
     next;      next;
  }   }
  return $key;   push(@possible,[$key,$end_time]);
       }
       if (@possible) {
           # sort entries in order by slot end time
    @possible = sort { $a->[1] <=> $b->[1] } @possible;
    # pick one of the entries in the top 10% in small queues and one
    # of the first ten entries in large queues
    #my $ten_percent = int($#possible * 0.1);
    #if ($ten_percent < 1 ) { $ten_percent = 1;  }
    #if ($ten_percent > 10) { $ten_percent = 10; }
    #my $max=($#possible < $ten_percent) ? $#possible : $ten_percent;
   
    #return $possible[int(rand($max))][0];
    return $possible[0][0];
     }      }
     return undef;      return undef;
 }  }
   
   sub get_lock_info {
       my ($lock_info) = @_;
       if (wantarray) {
    if (ref($lock_info) eq 'ARRAY') {
       return @{$lock_info};
    } else {
       return ($lock_info);
    }
       } else {
    if (ref($lock_info) eq 'ARRAY') {
       return $lock_info->[0];
    } else {
       return $lock_info;
    }
       }
       return;
   }
   
 sub find_mid_grade {  sub find_mid_grade {
     my ($symb,$cdom,$cnum)=@_;      my ($queue,$symb,$cdom,$cnum)=@_;
     my $todo=&Apache::lonnet::unescape($env{'form.gradingkey'});      my $todo=&unescape($env{'form.gradingkey'});
     my $me=$env{'user.name'}.'@'.$env{'user.domain'};      my $me=$env{'user.name'}.':'.$env{'user.domain'};
     if ($todo) {      if ($todo) {
  my $who=&queue_key_locked($todo,$cdom,$cnum);   my $who=&queue_key_locked($queue,$todo,$cdom,$cnum);
  if ($who eq $me) { return $todo; }   if ($who eq $me) { return $todo; }
     }      }
     my $regexp="^$symb\0.*\0locked\$";      my $regexp="^$symb\0.*\0locked\$";
     my %locks=&Apache::lonnet::dump('gradingqueue',$cdom,$cnum,$regexp);      my %locks=&Apache::lonnet::dump($queue,$cdom,$cnum,$regexp);
     foreach my $key (keys(%locks)) {      foreach my $key (keys(%locks)) {
  my $who=$locks{$key};   my $who= &get_lock_info($locks{$key});
  if ($who eq $me) {   if ($who eq $me) {
     $todo=$key;      $todo=$key;
     $todo=~s/\0locked$//;      $todo=~s/\0locked$//;
Line 475  sub find_mid_grade { Line 2091  sub find_mid_grade {
     return undef;      return undef;
 }  }
   
   sub lock_key {
       my ($queue,$todo)=@_;
       my $me=$env{'user.name'}.':'.$env{'user.domain'};
       my (undef,$cid)=&Apache::lonnet::whichuser();
       my $cnum=$env{'course.'.$cid.'.num'};
       my $cdom=$env{'course.'.$cid.'.domain'};
       my $success=&Apache::lonnet::newput($queue,{"$todo\0locked"=> [$me,time]},
    $cdom,$cnum);
       &Apache::lonxml::debug("success $success $todo");
       if ($success eq 'ok') {
    return 1;
       }
       return 0;
   }
   
   sub get_queue_symb_status {
       my ($queue,$symb,$cdom,$cnum) = @_;
       if (!defined($cdom) || !defined($cnum)) {
    my (undef,$cid) =&Apache::lonnet::whichuser();
    $cnum=$env{'course.'.$cid.'.num'};
    $cdom=$env{'course.'.$cid.'.domain'};
       }
       my $classlist=&get_limited_classlist();
   
       my $regexp="^$symb\0";
       my %queue=&Apache::lonnet::dump($queue,$cdom,$cnum,$regexp);
       my ($tmp)=%queue;
       if ($tmp=~/^error: 2 /) { return; }
       my @users;
       foreach my $key (sort(keys(%queue))) {
    next if ($key=~/locked$/);
    next if ($key=~/timestamp$/);
    my ($symb,$uname,$udom) = &decode_queue_key($key);
    next if (!defined($classlist->{$uname.':'.$udom}));
    next if (!&allow_grade_user($classlist->{$uname.':'.$udom}));
    push(@users,"$uname:$udom");
       }
       return @users;
   }
   
 sub get_from_queue {  sub get_from_queue {
       my ($queue)=@_;
     my $result;      my $result;
     my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();      my ($symb,$cid,$udom,$uname)=&Apache::lonnet::whichuser();
     my $cnum=$env{'course.'.$cid.'.num'};      my $cnum=$env{'course.'.$cid.'.num'};
     my $cdom=$env{'course.'.$cid.'.domain'};      my $cdom=$env{'course.'.$cid.'.domain'};
     my $todo;      my $todo=&find_mid_grade($queue,$symb,$cdom,$cnum);
     # FIXME need to find if I am 'mid grading'      &Apache::lonxml::debug("found ".join(':',&decode_queue_key($todo)));
     $todo=&find_mid_grade($symb,$cdom,$cnum);  
     &Apache::lonnet::logthis("found ".join(':',&decode_queue_key($todo)));  
     if ($todo) { return $todo; }      if ($todo) { return $todo; }
       my $attempts=0;
   
       my $classlist=&get_limited_classlist();
   
     while (1) {      while (1) {
    if ($attempts > 2) {
       # tried twice to get a queue entry, giving up
       return (undef,'unable');
    }
  my $starttime=time;   my $starttime=time;
  &Apache::lonnet::put('gradingqueue',{"$symb\0timestamp"=>$starttime},   &Apache::lonnet::cput($queue,{"$symb\0timestamp"=>$starttime},
      $cdom,$cnum);        $cdom,$cnum);
  &Apache::lonnet::logthis("$starttime");   &Apache::lonxml::debug("$starttime");
  my $regexp="^$symb\0queue\0";   my $regexp="^$symb\0queue\0";
  my %queue=&Apache::lonnet::dump('gradingqueue',$cdom,$cnum,$regexp);   #my $range= ($attempts < 1 ) ? '0-100' : '0-400';
  #make a pass looking for a user in my section  
    my %queue=&Apache::lonnet::dump($queue,$cdom,$cnum,$regexp);
    #make a pass looking for a user _not_ in my section
  if ($env{'request.course.sec'}) {   if ($env{'request.course.sec'}) {
     &Apache::lonnet::logthis("sce");      &Apache::lonxml::debug("sce");
     $todo=&pick_from_queue_data($env{'request.course.sec'},\%queue,      $todo=&pick_from_queue_data($queue,$env{'request.course.sec'},
  $cdom,$cnum);   \%queue,$cdom,$cnum,$classlist);
     &Apache::lonnet::logthis("sce $todo");      &Apache::lonxml::debug("sce $todo");
  }   }
  # no one in our section so look for any user that is ready for grading   # no one _not_ in our section so look for any user that is
    # ready for grading
  if (!$todo) {   if (!$todo) {
     &Apache::lonnet::logthis("no sce");      &Apache::lonxml::debug("no sce");
     $todo=&pick_from_queue_data($env{'request.course.sec'},\%queue,      $todo=&pick_from_queue_data($queue,undef,\%queue,$cdom,$cnum,
  $cdom,$cnum);   $classlist);
     &Apache::lonnet::logthis("no sce $todo");      &Apache::lonxml::debug("no sce $todo");
  }   }
  # no user to grade    # no user to grade 
  if (!$todo) { last; }   if (!$todo) { last; }
  &Apache::lonnet::logthis("got $todo");   &Apache::lonxml::debug("got $todo");
  # otherwise found someone so lets try to lock them   # otherwise found someone so lets try to lock them
  my $success=&Apache::lonnet::newput('gradingqueue',   # unless someone else already picked them
     {"$todo\0locked"=>   if (!&lock_key($queue,$todo)) {
  $env{'user.name'}.'@'.$env{'user.domain'}},      $attempts++;
    $cdom,$cnum);      next;
  # someone else already picked them   }
  &Apache::lonnet::logthis("success $todo");  
  if ($success ne 'ok') { next; }  
  my (undef,$endtime)=   my (undef,$endtime)=
     &Apache::lonnet::get('gradingqueue',["$symb\0timestamp"],      &Apache::lonnet::get($queue,["$symb\0timestamp"],
  $cdom,$cnum);   $cdom,$cnum);
  &Apache::lonnet::logthis("emd  $endtime");   &Apache::lonxml::debug("emd  $endtime");
  # someone else already modified the queue,    # someone else already modified the queue, 
  # perhaps our picked user wass already fully graded between   # perhaps our picked user wass already fully graded between
  # when we picked him and when we locked his record? so lets   # when we picked him and when we locked his record? so lets
  # double check.   # double check.
  if ($endtime != $starttime) {   if ($endtime != $starttime) {
     my ($key,$value)=      my ($key,$value)=
  &Apache::lonnet::get('gradingqueue',["$todo"],   &Apache::lonnet::get($queue,["$todo"],
      $cdom,$cnum);       $cdom,$cnum);
     &Apache::lonnet::logthis("check  $key .. $value");      &Apache::lonxml::debug("check  $key .. $value");
     if ($key eq $todo && ref($value)) {      if ($key eq $todo && ref($value)) {
     } else {      } else {
  &Apache::lonnet::del('gradingqueue',["$todo\0locked"],   &Apache::lonnet::del($queue,["$todo\0locked"],
      $cdom,$cnum);       $cdom,$cnum);
  &Apache::lonnet::logthis("del");   &Apache::lonxml::debug("del");
    $attempts++;
  next;   next;
     }      }
  }   }
  &Apache::lonnet::logthis("last $todo");   &Apache::lonxml::debug("last $todo");
  last;   last;
     }      }
     return $todo;      return $todo;
 }  }
   
   sub select_user {
       my ($symb,$cid)=&Apache::lonnet::whichuser();
   
       my @chosen_sections = &get_allowed_sections();
       my $classlist = &get_limited_classlist(\@chosen_sections);
       
       my $result;
       if (!(grep(/^all$/,@chosen_sections))) {
           $result.='<p>'
                   .&mt('Showing only sections [_1].'
                       ,'<tt>'.join(', ',@chosen_sections).'</tt>')
                   .'</p> '."\n";
       }
       $result.=&Apache::loncommon::start_data_table();
   
       foreach my $student (sort {lc($classlist->{$a}[&Apache::loncoursedata::CL_FULLNAME()]) cmp lc($classlist->{$b}[&Apache::loncoursedata::CL_FULLNAME()]) } (keys(%$classlist))) {
    my ($uname,$udom) = split(/:/,$student);
   
    my $cnum=$env{'course.'.$cid.'.num'};
    my $cdom=$env{'course.'.$cid.'.domain'};
    my %status = &get_student_status($symb,$cdom,$cnum,$udom,$uname,
    'Task');
    my $queue = 'none';
    my $cannot_grade;
    if ($status{'reviewqueue'} =~ /^(in_progress|enqueue)$/) {
       $queue = 'reviewqueue';
       if ($status{'reviewqueue'} eq 'in_progress') {
    $cannot_grade=1;
       }
    } elsif ($status{'gradingqueue'} =~ /^(in_progress|enqueue)$/) {
       $queue = 'gradingqueue';
       if ($status{'gradingqueue'} eq 'in_progress') {
    $cannot_grade=1;
       }
    }
    my $todo = 
       &escape(&encode_queue_key($symb,$udom,$uname));
    if ($cannot_grade) {
       $result.=&Apache::loncommon::start_data_table_row().
    '<td>&nbsp;</td><td>'.$classlist->{$student}[&Apache::loncoursedata::CL_FULLNAME()].
    '</td><td>';
    } else {
       my $seclist;
       foreach my $sec (@chosen_sections) {
    $seclist.='<input type="hidden" name="chosensections" 
                                  value="'.$sec.'" />';
       }
               my $buttontext=&mt('Regrade');
       $result.=&Apache::loncommon::start_data_table_row();
       $result.=<<RESULT;
     <td>
       <form style="display: inline" method="post" action="">
         <input type="hidden" name="gradingkey" value="$todo" />
         <input type="hidden" name="queue" value="$queue" />
         <input type="hidden" name="webgrade" value="no" />
         <input type="hidden" name="regrade" value="yes" />
         <input type="submit" name="submit" value="$buttontext" />
         $seclist
       </form>
     <td>$classlist->{$student}[&Apache::loncoursedata::CL_FULLNAME()] <tt>($student)</tt> Sec: $classlist->{$student}[&Apache::loncoursedata::CL_SECTION()]</td>
     <td>
   RESULT
           }
           if ($status{'status'} eq 'pass') {
       $result .= '<font color="green">'.&mt('Passed').'</font>';
    } elsif ($status{'status'} eq 'fail') {
       $result .= '<font color="red">'.&mt('Failed').'</font>';
    } elsif ($status{'status'} eq 'review') {
       $result .= '<font color="blue">'.&mt('Under Review').'</font>';
    } elsif ($status{'status'} eq 'ungraded') {
       $result .= &mt('Ungraded');
    } elsif ($status{'status'} ne '') {
       $result .= '<font color="orange">'.&mt('Unknown Status').'</font>';
    } else {
       $result.="&nbsp;";
    }
    if ($status{'version'}) {
       $result .= ' '.&mt('Version').' '.$status{'version'};
    }
    if ($status{'grader'}) {
       $result .= ' '.&mt('(Graded by [_1])',$status{'grader'}).' ';
    }
    $result.= '</td><td>';
    if ($status{'reviewqueue'} eq 'enqueued') {
       $result .= &mt('Awaiting Review');
    } elsif ($status{'reviewqueue'} eq 'locked') {
       $result .= &mt('Under Review');
    } elsif ($status{'reviewqueue'} eq 'in_progress') {
       $result .= &mt('Still being worked on.');
    } elsif ($status{'gradingqueue'} eq 'enqueued') {
       $result .= &mt('Awaiting Grading');
    } elsif ($status{'gradingqueue'} eq 'locked') {
       $result .= &mt('Being Graded');
    } elsif ($status{'gradingqueue'} eq 'in_progress') {
       $result .= &mt('Still being worked on.');
    } else {
       $result.="&nbsp;";
    }
    $result.= '</td>'.&Apache::loncommon::end_data_table_row();
       }
       $result.=&Apache::loncommon::end_data_table();
       return $result;
   }
   
   sub get_student_status {
       my ($symb,$cdom,$cnum,$udom,$uname,$type)=@_;
   
       my %status;
   
       if ($type eq 'Task') {
    my %record = &Apache::lonnet::restore($symb,$env{'request.course.id'},
     $udom,$uname);
    $status{'status'}=$record{'resource.0.status'};
    $status{'version'}=$record{'resource.0.version'};
    $status{'grader'}=$record{'resource.0.regrader'};
       }
       $status{'reviewqueue'}=
    &check_queue_for_key($cdom,$cnum,'reviewqueue',
        &encode_queue_key($symb,$udom,$uname));
       $status{'gradingqueue'}=
    &check_queue_for_key($cdom,$cnum,'gradingqueue',
        &encode_queue_key($symb,$udom,$uname));
       return %status;
   }
   
 sub start_ClosingParagraph {  sub start_ClosingParagraph {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
     my $result;      my $result;
     if ($target eq 'web') {      if ($target eq 'web') {
     } elsif ($target eq 'webgrade') {      } elsif ($target eq 'webgrade') {
  &Apache::lonxml::startredirection();   &Apache::lonxml::startredirection();
       } elsif ($target eq 'edit') {
    $result = &Apache::edit::tag_start($target,$token);
       } elsif ($target eq 'modified') {
     }      }
     return $result;      return $result;
 }  }
Line 564  sub end_ClosingParagraph { Line 2357  sub end_ClosingParagraph {
     return $result;      return $result;
 }  }
   
   sub insert_ClosingParagraph {
       return '
   <ClosingParagraph>
       <startouttext />
       <endouttext />
   </ClosingParagraph>';
   }
   
   sub get_dim_id {
       if (@Apache::bridgetask::dimension) {
    return $Apache::bridgetask::dimension[-1];
       } else {
    return $top;
       }
   }
   
 sub get_id {  sub get_id {
     my ($parstack,$safeeval)=@_;      my ($parstack,$safeeval)=@_;
     my $id=&Apache::lonxml::get_param('id',$parstack,$safeeval);      return &Apache::lonxml::get_id($parstack,$safeeval);
     if (!$id) { $id=$Apache::lonxml::curdepth; }  
     return $id;  
 }  }
   
 my %dimension;  sub start_Setup {
 sub start_Dimension {  
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
     undef(%dimension);      my $result;
     my $dim_id=&get_id($parstack,$safeeval);      my $dim = &get_id($parstack,$safeeval);
     $Apache::bridgetask::dimension=$dim_id;      push(@Apache::bridgetask::dimension,$dim);
     push(@Apache::bridgetask::dimensionlist,$dim_id);      if ($target eq 'web' || $target eq 'webgrade' || $target eq 'grade') {
     undef(@Apache::bridgetask::instance);   &Apache::lonxml::startredirection();
     $Apache::bridgetask::dimensionmandatory{$dim_id}=      } elsif ($target eq 'edit') {
  &Apache::lonxml::get_param('Mandatory',$parstack,$safeeval);   $result = &Apache::edit::tag_start($target,$token);
    $result.= &Apache::edit::text_arg('Id:','id',$token,10).
       &Apache::edit::end_row().
       &Apache::edit::start_spanning_row();
       } elsif ($target eq 'modified') {
    my $constructtag=
       &Apache::edit::get_new_args($token,$parstack,$safeeval,'id');
    if ($constructtag) {
       $result = &Apache::edit::rebuild_tag($token);
    }
       }
       return $result;
   }
   
   {
       my @allowed;
       sub enable_dimension_parsing {
    my ($id) = @_;
    push(@allowed,$id);
       }
       sub disable_dimension_parsing {
    pop(@allowed);
       }
       sub skip_dimension_parsing {
    my ($check) = @_;
    if (!@allowed) { return 0;}
    # if unspecified allow any id
    if ($allowed[-1] eq undef) { return 0;}
   
    return ($check ne $allowed[-1]);
       }
   }
   
   sub start_Question { return &start_Dimension(@_); }
   sub start_Dimension {
       my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
       my $dim = &get_id($parstack,$safeeval);
       my $previous_dim;
       my $result;
       if ($target eq 'grade' || $target eq 'web' || $target eq 'webgrade') {
    if (@Apache::bridgetask::dimension) {
       $previous_dim = $Apache::bridgetask::dimension[-1];
       push(@{$Apache::bridgetask::dimension{$previous_dim}{'contains'}},
    $dim);
       if(&skip_dimension_parsing($dim)) {
    $dimension{$previous_dim}{'criteria.'.$dim} =
       $token->[4]
       .&Apache::lonxml::get_all_text('/'.$tagstack->[-1],$parser,
      $style)
       .'</'.$tagstack->[-1].'>';
       }
       $dimension{$previous_dim}{'criteria.'.$dim.'.type'}='dimension';
       $dimension{$previous_dim}{'criteria.'.$dim.'.mandatory'}=
    &Apache::lonxml::get_param('Mandatory',$parstack,$safeeval);
       push(@{$dimension{$previous_dim}{'criterias'}},$dim);
       $dimension{$dim}{'nested'}=$previous_dim;
       $dimension{$dim}{'depth'} = 1 + $dimension{$previous_dim}{'depth'};
       
       &Apache::lonxml::debug("adding $dim as criteria to $previous_dim");
    } else {
       $dimension{$top}{'depth'}=0;
       $dimension{$top}{'criteria.'.$dim.'.type'}='dimension';
       $dimension{$top}{'criteria.'.$dim.'.mandatory'}=
    &Apache::lonxml::get_param('Mandatory',$parstack,$safeeval);
       push(@{$dimension{$top}{'criterias'}},$dim);
       $dimension{$dim}{'nested'}=$top;
    }
           push(@Apache::bridgetask::dimension,$dim);
    &Apache::lonxml::startredirection();
    if (!&skip_dimension_parsing($dim)) {
       &enable_dimension_parsing($dim);
    }
       } elsif ($target eq 'edit') {
     $result = &Apache::edit::tag_start($target,$token);
    $result.=  
       &Apache::edit::text_arg('Id:','id',$token,10).' '.
       &Apache::edit::select_arg('Passing is Mandatory:','Mandatory',
         [['Y', 'Yes'],
          ['N','No'],],
         $token).' <br /> '.
       &Apache::edit::text_arg('Required number of passed optional elements to pass the '.$token->[1].':',
       'OptionalRequired',$token,4).
       &Apache::edit::end_row().
       &Apache::edit::start_spanning_row();
       } elsif ($target eq 'modified') {
    my $constructtag=
       &Apache::edit::get_new_args($token,$parstack,$safeeval,
    'id','Mandatory','OptionalRequired');
    if ($constructtag) {
       $result = &Apache::edit::rebuild_tag($token);
    }
       }
       return $result;# &internal_location($dim);
   }
   
   sub start_QuestionText {
       my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
       my $result;
       if ($target eq 'grade' || $target eq 'web' || $target eq 'webgrade') {
    my $text=&Apache::lonxml::get_all_text('/questiontext',$parser,$style);
       my $dim = &get_dim_id();
    $dimension{$dim}{'questiontext'}=$text;
       } elsif ($target eq 'edit') {
    $result = &Apache::edit::tag_start($target,$token);
       } elsif ($target eq 'modified') {
       }
       return $result;
   }
   
   sub end_QuestionText {
     return '';      return '';
 }  }
   
   sub insert_QuestionText {
       return '
   <QuestionText>
       <startouttext />
       <endouttext />
   </QuestionText>';
   }
   
 sub get_instance {  sub get_instance {
     #FIXME just grabbing the first one for now, need      my ($dim)=@_;
     #to randomly pick one until all have been seen      my $rand_alg=&Apache::lonnet::get_rand_alg();
     #then start repicking      if (!$rand_alg || $rand_alg eq '32bit' || $rand_alg eq '64bit' ||
     &Apache::response::pushrandomnumber();   $rand_alg eq '64bit2' || $rand_alg eq '64bit3' ||
     my @order=&Math::Random::random_permutation(@{$dimension{'instances'}});   $rand_alg eq '64bit4' ) {
     return $order[0];   &Apache::response::pushrandomnumber();
    my @order=&Math::Random::random_permutation(@{$dimension{$dim}{'instances'}});
    my $num=@order;
    my $version=&get_version();
    my $which=($version-1)%$num;
    return $order[$which];
       } else {
    my ($version,$previous) = &get_version();
    my $instance = 
       $Apache::lonhomework::history{"resource.$version.0.$dim.instance"};
    if (defined($instance)) { return $instance; }
   
    &Apache::response::pushrandomnumber();
    if (ref($dimension{$dim}{'instances'}) eq 'ARRAY') {
       my @instances = @{$dimension{$dim}{'instances'}};
       # remove disabled instances
       for (my $i=0; $i < $#instances; $i++) {
    if ($dimension{$dim}{$instances[$i].'.disabled'}) {
       splice(@instances,$i,1);
       $i--;
    }
       }
       @instances = &Math::Random::random_permutation(@instances);
       $instance  = $instances[($version-1)%scalar(@instances)];
       if ($version =~ /^\d$/) {
    $Apache::lonhomework::results{"resource.$version.0.$dim.instance"} = 
       $instance;
    $Apache::lonhomework::results{'INTERNAL_store'} = 1; 
       }
    }
    &Apache::response::poprandomnumber();
    return $instance;
       }
 }  }
   
 {  sub get_criteria {
     my $last_link;      my ($what,$version,$dim,$id) = @_;
     sub end_Dimension {      my $type = $dimension{$dim}{'criteria.'.$id.'.type'};
  my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;      my $prefix = ($type eq 'criteria' && $dim ne $top) ? "$dim.$id"
  my $result;                                                 : "$id";
  my $dim_id=&get_id($parstack,$safeeval);      my $entry = "resource.$version.0.$prefix.$what";
  my $instance=&get_instance();      if (exists($Apache::lonhomework::results{$entry})) {
  if ($target eq 'web') {   return $Apache::lonhomework::results{$entry};
     $result=$dimension{'intro'}.$dimension{$instance.'.text'};      }
     if ($Apache::lonhomework::history{'resource.status'} eq 'pass' ||      return $Apache::lonhomework::history{$entry};
  $Apache::lonhomework::history{'resource.status'} eq 'fail') {  }
  foreach my $id (@{$dimension{$instance.'.criterias'}}) {  
     my $status=$Apache::lonhomework::history{"resource.$dim_id.$instance.$id.status"};  sub link {
     my $comment=$Apache::lonhomework::history{"resource.$dim_id.$instance.$id.comment"};      my ($id) = @_;
     $result.='<table border="1"><tr><td>';      $id =~ s/\./_/g;
     if ($status eq 'fail') {      return 'LC_GRADING_criteria_'.$id;
  $result.='<font color="red">'.&mt('Did not pass').'</font>';  }
     } elsif ($status eq 'pass') {  sub end_Question { return &end_Dimension(@_); }
  $result.='<font color="green">'.&mt('Passed').'</font>';  sub end_Dimension {
       my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
       my $result;
       my $dim=&get_id($parstack,$safeeval);
       if ($target eq 'grade' || $target eq 'web' || $target eq 'webgrade') {
    $result=&Apache::lonxml::endredirection();
    if (&skip_dimension_parsing($dim)) {
       pop(@Apache::bridgetask::dimension);
       return;
    }
       }
       my $instance=&get_instance($dim);
       my $version=&get_version();
       if ($target eq 'web') {
    $result .= &nested_parse(\$dimension{$dim}{'intro'},[@_]);
    my @instances = $instance;
    if (&Apache::response::showallfoils()) {
       @instances = @{$dimension{$dim}{'instances'}};
    }
    my $shown_question_text;
    foreach my $instance (@instances) {
       $result .= &nested_parse(\$dimension{$dim}{$instance.'.text'},
        [@_]);
       $result .= &nested_parse(\$dimension{$dim}{'questiontext'},
        [@_],{'set_dim_id' => undef});
       my $task_status = 
    $Apache::lonhomework::history{"resource.$version.0.status"};
       if ($task_status ne 'pass' && $task_status ne 'fail') {
   
    foreach my $id (@{$dimension{$dim}{$instance.'.criterias'}},
    @{$dimension{$dim}{'criterias'}}) {
       my $type = $dimension{$dim}{'criteria.'.$id.'.type'};
       &Apache::lonxml::debug("$id is $type");
       if ($type eq 'dimension') {
    $result.=
       &nested_parse(\$dimension{$dim}{'criteria.'.$id},
     [@_],{'set_dim_id' => $id});
       }
    }
       } else {
    my $dim_status=$Apache::lonhomework::history{"resource.$version.0.$dim.status"};
    my $mandatory='Mandatory';
    if (&Apache::lonxml::get_param('Mandatory',$parstack,$safeeval) eq 'N') {
       $mandatory='Optional';
    }
    my $dim_info=
       "\n<div class='LC_$dim_status LC_question_grade'>\n\t";
    my $ucquestion = 
       my $question = 
       ('sub' x $dimension{$dim}{'depth'}).'question';
    $ucquestion =~ s/^(.)/uc($1)/e;
    if ($dim_status eq 'pass') {
                       $dim_info.='<h3>'.$ucquestion.' : '
                                 .&mt('you passed this [_1] [_2]',$mandatory,$question)
                                 .'</h3>';
    }
    if ($dim_status eq 'fail') {
                       $dim_info.='<h3>'.$ucquestion.' : '
                                 .&mt('you did not pass this [_1] [_2]',$mandatory,$question)
                                 .'</h3>';
    }
    my %counts = &get_counts($dim,$instance,$parstack,
    $safeeval);
   
    $dim_info.="\n\t<p>"
       .&question_status_message(\%counts,
         $dimension{$dim}{'depth'})
       ."</p>\n</div>\n";
   
    foreach my $id (@{$dimension{$dim}{$instance.'.criterias'}},
    @{$dimension{$dim}{'criterias'}}) {
       my $type = $dimension{$dim}{'criteria.'.$id.'.type'};
       if ($type eq 'dimension') {
    if (defined($dimension{$id}{'result'})) {
       $result.=$dimension{$id}{'result'};
       next;
    } else {
       $dim_info .=
    &nested_parse(\$dimension{$dim}{'criteria.'.$id},
         [@_],{'set_dim_id' => $id});
    }
     } else {      } else {
  &Apache::lonxml::error("Student viewing a graded bridgetask was show a status of $status");   my $criteria =
       &nested_parse(\$dimension{$dim}{'criteria.'.$id},
     [@_]);
    $dim_info .= &layout_web_Criteria($dim,$id,$criteria);
     }      }
     $result.='</td></tr><tr><td>';  
     if ($Apache::lonhomework::history{"resource.$dim_id.$instance.$id.comment"}) {  
  $result.=&mt('Comment from grader: ').$Apache::lonhomework::history{"resource.$dim_id.$instance.$id.comment"}.'</td></tr><tr><td>';  
     }  
     $result.=$dimension{$instance.'.criteria.'.$id}.  
  '</td></tr></table>';  
  }  
     }  
  } elsif ($target eq 'webgrade') {  
     my $version=$Apache::lonhomework::history{'resource.version'};  
     foreach my $id (@{$dimension{$instance.'.criterias'}}) {  
  my $link='criteria_'.$instance.'_'.$id;  
  my $status=$Apache::lonhomework::history{"resource.$dim_id.$instance.$id.status"};  
  $result.='<tr><td width="100%" valign="top">'.  
     '<a name="'.$link.'" />'.  
     '<a name="next_'.$last_link.'" />'.  
     '<br /><textarea enabled="false" style="width:100%" rows="8" width="25" wrap="hard">'.$dimension{$instance.'.criteria.'.$id}.'</textarea>'.  
     #$dimension{$instance.'.criteria.'.$id}.  
     '</td>'.  
     '<td><nobr>Additional Comment for Student</nobr> <br />'.  
     '<textarea style="width:100%" rows="8" width="25" wrap="hard" name="HWVAL_comment_'.$link.'">'.&HTML::Entities::encode($Apache::lonhomework::history{"resource.$dim_id.$instance.$id.comment"}).'</textarea>'.  
     '</td>'.  
     '<td>'.  
     '<nobr><label><input type="radio" name="HWVAL_'.$link.'" value="ungraded" '.($status eq 'ungraded' || !$status ? 'checked="checked"':'').'/>Ungraded</label></nobr><br />'.  
     '<label><input type="radio" name="HWVAL_'.$link.'" value="pass" '.($status eq 'pass' ? 'checked="checked"':'').' />Pass</label><br />'.  
     '<label><input type="radio" name="HWVAL_'.$link.'" value="fail" '.($status eq 'fail' ? 'checked="checked"':'').' />Fail</label><br />'.  
     '<label><input type="radio" name="HWVAL_'.$link.'" value="review" '.($status eq 'review' ? 'checked="checked"':'').' />Review</label><br />'.  
     '</td>'.  
     '<td>'.  
     '<a href="#'.$last_link.'">Prev</a><br />'.  
     '<a href="#next_'.$link.'">Next</a><br /><br /><br />'.  
     '<input type="submit" name="next" value="'.  
     &mt('Done').'" /> '.  
     '</td></tr>';  
  $result.='<tr><td colspan="4">';  
  my (undef,undef,$udom,$uname) = &Apache::lonxml::whichuser();  
  my $file_url = '/uploaded/'.$udom.'/'.$uname.'/portfolio';  
  foreach my $partial_file (split(',',$Apache::lonhomework::history{"resource.$version.bridgetask.portfiles"})) {  
     my $file=$file_url.$partial_file;  
     &Apache::lonnet::allowuploaded('/adm/bridgetask',$file);  
     $result.='<a href="'.$file.'" target="lonGRDs"><img src="'.  
  &Apache::loncommon::icon($file).'" border=0"> '.$file.  
  '</a>';  
  }   }
  $result.='</td></tr>';   # puts the results at the end of the dimension
  $last_link=$link;   if ($result =~m{<QuestionGradeInfo\s*/>}) {
       $result=~s{<QuestionGradeInfo\s*/>}{$dim_info};
    } else {
       $result .= $dim_info;
    }
    # puts the results at the beginning of the dimension
    # my $internal_location=&internal_location($dim);
    # $result=~s/\Q$internal_location\E/$dim_info/;
     }      }
  } elsif ($target eq 'grade' && $env{'form.webgrade'}) {   }
     my $optional_passed=0;   if ($result !~ /^\s*$/s) {
     my $mandatory_failed=0;      # FIXME? this maybe unneccssary in the future, (CSE101 BT
     my $ungraded=0;      # from Fall 2006 geenrate a div that attempts to hide some
     my $review=0;      # of the output in an odd way, this is a workaround so
     foreach my $id (@{$dimension{$instance.'.criterias'}}) {      # those old ones will continue to work.  # It puts the
  my $status=$Apache::lonhomework::results{"resource.$dim_id.$instance.$id.status"}=$env{'form.HWVAL_criteria_'.$instance.'_'.$id};      # LC_question div to come after any starting closie div
  $Apache::lonhomework::results{"resource.$dim_id.$instance.$id.comment"}=$env{'form.HWVAL_comment_criteria_'.$instance.'_'.$id};      # that the dimension produces
  my $mandatory=($dimension{$instance.'.criteria.'.$id.'.mandatory'} ne 'N');      if ($result =~ m{^\s*</div>}) {
  if ($status eq 'pass') {   $result =~ s{^(\s*</div>)}
     if (!$mandatory) { $optional_passed++; }              {$1\n<div id="$dim" class="LC_question">};
  } elsif ($status eq 'fail') {      } else {
     if ($mandatory) { $mandatory_failed++; }   $result = "\n".'<div id="'.$dim.'" class="LC_question">'.
  } elsif ($status eq 'review') {      "\n".$result;
     $review++;      }
  } elsif ($status eq 'ungraded') {      $result .= "\n</div>\n";
     $ungraded++;   }
       } elsif ($target eq 'webgrade') {
    # in case of any side effects that we need
    &nested_parse(\$dimension{$dim}{'intro'},[@_]);
    &nested_parse(\$dimension{$dim}{$instance.'.text'},[@_]);
    $result.=
       &nested_parse(\$dimension{$dim}{'questiontext'},[@_],
     {'set_dim_id'          => undef,
      'delayed_dim_results' => 1});
    foreach my $id (@{$dimension{$dim}{$instance.'.criterias'}},
    @{$dimension{$dim}{'criterias'}} ) {
       my $type = $dimension{$dim}{'criteria.'.$id.'.type'};
       if ($type eq 'dimension') {
    # dimensional 'criteria' don't get assigned grades
    $result.=
       &nested_parse(\$dimension{$dim}{'criteria.'.$id},
     [@_],{'set_dim_id' => $id});
    next;
       } else {
    my $criteria =&nested_parse(\$dimension{$dim}{'criteria.'.$id},
        [@_]);
    $criteria = &layout_webgrade_Criteria($dim,$id,$criteria);
    my $internal_location=&internal_location($id);
    if ($result =~ m/\Q$internal_location\E/) {
       $result =~ s/\Q$internal_location\E/$criteria/;
  } else {   } else {
     &Apache::lonxml::error("got weird status --$status--");      $result.=$criteria ;
  }   }
     }      }
     if ($optional_passed < $dimension{$instance.'.optionalrequired'}) {   }
  $mandatory_failed++;   if (&nest()) {
       &Apache::lonxml::debug(" for $dim stashing results into ".$dimension{$dim}{'nested'});
       $dimension{$dimension{$dim}{'nested'}}{'result'}.=$result;
       undef($result);
    }
       } elsif ($target eq 'grade' && $env{'form.webgrade'}) {
    my $optional_passed=0;
    my $mandatory_failed=0;
    my $ungraded=0;
    my $review=0;
   
    $result .= &nested_parse(\$dimension{$dim}{'intro'},[@_]);
    $result .= &nested_parse(\$dimension{$dim}{$instance.'.text'},
    [@_]);
    $result .= &nested_parse(\$dimension{$dim}{'questiontext'},
    [@_],{'set_dim_id' => undef});
   
    foreach my $id (@{$dimension{$dim}{$instance.'.criterias'}},
    @{$dimension{$dim}{'criterias'}}) {
       my $link=&link($id);
       
       my $type = $dimension{$dim}{'criteria.'.$id.'.type'};
       if ($type eq 'criteria') {
    # dimensional 'criteria' don't get assigned grades
    $Apache::lonhomework::results{"resource.$version.0.$dim.$id.status"}=$env{'form.HWVAL_'.$link};
    $Apache::lonhomework::results{"resource.$version.0.$dim.$id.comment"}=$env{'form.HWVAL_comment_'.$link};
       } else {
    $result .=
       &nested_parse(\$dimension{$dim}{'criteria.'.$id},
     [@_],{'set_dim_id' => $id});
     }      }
     &Apache::lonxml::debug("all instance ".join(':',@{$dimension{$instance.'.criterias'}})." results -> m_f $mandatory_failed o_p $optional_passed u $ungraded r $review");      my $status= &get_criteria('status',$version,$dim,$id);
     if ($review) {      
  $Apache::lonhomework::results{"resource.$dim_id.status"}=      my $mandatory=($dimension{$dim}{'criteria.'.$id.'.mandatory'} ne 'N');
     'review';      if ($status eq 'pass') {
     } elsif ($ungraded) {   if (!$mandatory) { $optional_passed++; }
  $Apache::lonhomework::results{"resource.$dim_id.status"}=      } elsif ($status eq 'fail') {
     'ungraded';   if ($mandatory) { $mandatory_failed++; }
     } elsif ($mandatory_failed) {      } elsif ($status eq 'review') {
  $Apache::lonhomework::results{"resource.$dim_id.status"}=   $review++;
     'fail';      } elsif ($status eq 'ungraded') {
    $ungraded++;
     } else {      } else {
  $Apache::lonhomework::results{"resource.$dim_id.status"}=   $ungraded++;
     'pass';  
     }      }
  }   }
  return $result;  
    my $opt_req=$dimension{$dim}{$instance.'.optionalrequired'};
    if ($opt_req !~ /\S/) {
       $opt_req=
    &Apache::lonxml::get_param('OptionalRequired',
      $parstack,$safeeval);
       if ($opt_req !~ /\S/) { $opt_req = 0; }
    }
    if ($optional_passed < $opt_req) {
       $mandatory_failed++;
    }
    &Apache::lonxml::debug("all instance ".join(':',@{$dimension{$dim}{$instance.'.criterias'}})." results -> m_f $mandatory_failed o_p $optional_passed u $ungraded r $review");
    if ($review) {
       $Apache::lonhomework::results{"resource.$version.0.$dim.status"}=
    'review';
    } elsif ($ungraded) {
       $Apache::lonhomework::results{"resource.$version.0.$dim.status"}=
    'ungraded';
    } elsif ($mandatory_failed) {
       $Apache::lonhomework::results{"resource.$version.0.$dim.status"}=
    'fail';
    } else {
       $Apache::lonhomework::results{"resource.$version.0.$dim.status"}=
    'pass';
    }
       } elsif ($target eq 'edit') {
       } elsif ($target eq 'modified') {
       } else {
    # any other targets no output
    undef($result);
       }
       if ($target eq 'grade' || $target eq 'web' || $target eq 'webgrade') {
    &disable_dimension_parsing();
    pop(@Apache::bridgetask::dimension);
     }      }
       return $result;
 }  }
   
 sub start_IntroParagraph {  sub question_status_message {
       my ($counts,$depth) = @_;
       my %req  = ('man' => 'mandatory',
    'opt' => 'optional',);
       my %type = ('cri' => 'criteria',
    'dim' => ('sub'x($depth+1)).'questions',);
       my @sections;
       foreach my $req ('man','opt') {
    foreach my $type ('cri','dim') {
       if ($counts->{$req.'_'.$type}) {
    push(@sections,
        $counts->{$req.'_'.$type.'_passed'}.' of the '.
        $counts->{$req.'_'.$type}.' '.
        $req{$req}.' '.$type{$type});
       }
    }
       }
   
       my $status = 'You passed ';
       if (@sections == -1) {
       } elsif (@sections == 1) {
    $status .= $sections[0];
       } elsif (@sections == 2) {
    $status .= $sections[0].' and '.$sections[1];
       } else {
    my $last = pop(@sections);
    $status .= join(', ',@sections).', and '.$last;
       }
       $status .= '.';
       if ($counts->{'opt'}) {
           if ($counts->{'opt_dim'} + $counts->{'man_dim'} < 1) {
               $status .= ' '.&mt('You were required to pass [quant,_1,optional criterion,optional criteria].',$counts->{'opt_req'});
           } else { 
               $status .= ' '.&mt('You were required to pass [quant,_1,optional component].',$counts->{'opt_req'});
           }
       }
       return $status;
   }
   
   sub get_counts {
       my ($dim,$instance,$parstack,$safeeval) = @_;
       my %counts;
       my @possible = ('man_cri','man_dim',
       'opt_cri','opt_dim',
       'man_cri_passed', 'man_dim_passed',
       'opt_cri_passed', 'opt_dim_passed',
       'man_passed',
       'opt_passed',
       'opt_req');
       foreach my $which (@possible) { $counts{$which} = 0; }
   
       my $version = &get_version();
   
       foreach my $id ( @{$dimension{$dim}{$instance.'.criterias'}},
        @{$dimension{$dim}{'criterias'}} ) {
    my $status = &get_criteria('status',$version,$dim,$id);
    my $which;
    if ($dimension{$dim}{'criteria.'.$id.'.mandatory'} 
       eq 'N') {
       $which = 'opt';
    } else {
       $which = 'man';
    }
    $counts{$which}++;
    if ($status eq 'pass') { $counts{$which.'_passed'}++; }
    if ($dimension{$dim}{'criteria.'.$id.'.type'}
       eq 'dimension') {
       $which .= '_dim';
    } else {
       $which .= '_cri';
    }
    $counts{$which}++;
    if ($status eq 'pass') { $counts{$which.'_passed'}++; }
   
   
       }
       if ($counts{'man_dim_passed'} eq $counts{'man_dim'}) {
    $counts{'man_dim_passed'}='all';
       }
       if ($counts{'man_cri_passed'} eq $counts{'man_cri'}) {
    $counts{'man_cri_passed'}='all';
       }
       
       $counts{'opt_req'}=$dimension{$dim}{$instance.'.optionalrequired'};
       if ($counts{'opt_req'} !~ /\S/) {
    $counts{'opt_req'}= &Apache::lonxml::get_param('OptionalRequired',
          $parstack,$safeeval);
    if ($counts{'opt_req'} !~ /\S/) { $counts{'opt_req'} = 0; }
       }
       return %counts;
   }
   
   sub end_Setup {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
     my $result;      my $result;
     if ($target eq 'web' || $target eq 'webgrade') {      my $dim=&get_id($parstack,$safeeval);
  if ($tagstack->[-2] eq 'Dimension' || $target eq 'webgrade') {      my $instance=&get_instance($dim);
     &Apache::lonxml::startredirection();      my $version=&get_version();
       if ($target eq 'web' || $target eq 'webgrade' || $target eq 'grade') {
    $result=&Apache::lonxml::endredirection();
       }
       if ($target eq 'web') {
    @Apache::scripttag::parser_env = @_;
    $result.=&Apache::scripttag::xmlparse($dimension{$dim}{'intro'});
    my @instances = $instance;
    if (&Apache::response::showallfoils()) {
       @instances = @{$dimension{$dim}{'instances'}};
    }
    foreach my $instance (@instances) {
       @Apache::scripttag::parser_env = @_;
       $result.=&Apache::scripttag::xmlparse($dimension{$dim}{$instance.'.text'});
       @Apache::scripttag::parser_env = @_;
       $result.=&Apache::scripttag::xmlparse($dimension{$dim}{'questiontext'});
  }   }
       } elsif ($target eq 'webgrade' 
        || $target eq 'grade' && $env{'form.webgrade'}) {
    # in case of any side effects that we need
    @Apache::scripttag::parser_env = @_;
    &Apache::scripttag::xmlparse($dimension{$dim}{'intro'});
    @Apache::scripttag::parser_env = @_;
    &Apache::scripttag::xmlparse($dimension{$dim}{$instance.'.text'});
    @Apache::scripttag::parser_env = @_;
    &Apache::scripttag::xmlparse($dimension{$dim}{'questiontext'});
       } else {
    # any other targets no output
    undef($result);
     }      }
       pop(@Apache::bridgetask::dimension);
     return $result;      return $result;
 }  }
   
 sub end_IntroParagraph {  sub grading_history {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;      my ($version,$dim,$id) = @_;
       if (!&Apache::lonnet::allowed('mgq',$env{'request.course.id'})
    && !&Apache::lonnet::allowed('mgq',$env{'request.course.id'}.'/'.$env{'request.course.sec'})) {
    return '';
       }
       my ($result,$grader);
       my $scope="resource.$version.0.";
       $scope .= ($dim ne $top) ? "$dim.$id"
                        : "$id";
       foreach my $t (1..$Apache::lonhomework::history{'version'}) {
    if (exists($Apache::lonhomework::history{$t.':resource.0.regrader'})) {
       my ($gname,$gdom) = 
    split(':',$Apache::lonhomework::history{$t.':resource.0.regrader'});
       my $fullname = &Apache::loncommon::plainname($gname,$gdom);
       $grader = &Apache::loncommon::aboutmewrapper($fullname,
    $gname,$gdom);
    }
    my $entry;
    if (exists($Apache::lonhomework::history{"$t:$scope.status"})) {
       $entry.="<tt>".$Apache::lonhomework::history{"$t:$scope.status"}.'</tt>';
    }
    if (exists($Apache::lonhomework::history{"$t:$scope.comment"})) {
       $entry.=' comment: "'.$Apache::lonhomework::history{"$t:$scope.comment"}.'"';
    }
    if ($entry) {
       $result.= "\n\t\t<li>\n\t\t\t$grader :\n\t\t\t $entry \n\t\t</li>";
    }
       }
       if ($result) {
    return "\n\t".'<ul class="LC_GRADING_pastgrading">'.$result.
       "\n\t".'</ul>'."\n";
       }
       return '';
   }
   
   sub start_IntroParagraph {
       my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
     my $result;      my $result;
     if ($target eq 'web' || $target eq 'webgrade') {      my $dim = &get_dim_id();
  if ($tagstack->[-2] eq 'Dimension' || $target eq 'webgrade') {      if ($target eq 'grade' || $target eq 'web' || $target eq 'webgrade') {
     $dimension{'intro'}=&Apache::lonxml::endredirection();   if ($tagstack->[-2] eq 'Dimension' || $tagstack->[-2] eq 'Question' ) {
       $dimension{$dim}{'intro'}=
    &Apache::lonxml::get_all_text('/introparagraph',
         $parser,$style);
           } elsif ($tagstack->[-2] eq 'Task' && $target eq 'webgrade') {
       &Apache::lonxml::startredirection();
  }   }
   
       } elsif ($target eq 'edit') {
    $result = &Apache::edit::tag_start($target,$token);
       } elsif ($target eq 'modified') {
     }      }
     return $result;      return $result;
 }  }
   
   sub end_IntroParagraph {
       my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
       if ($tagstack->[-2] eq 'Task' && $target eq 'webgrade') {
    my $result = &Apache::lonxml::endredirection();
       }
   }
   
   sub insert_IntroParagraph {
       return '
   <IntroParagraph>
       <startouttext />
       <endouttext />
   </IntroParagraph>';
   }
   
 sub start_Instance {  sub start_Instance {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
     my $id=&get_id($parstack,$safeeval);      my $dim = &get_dim_id();
     push(@{$dimension{'instances'}},$id);      my $id  = &get_id($parstack,$safeeval);
     push(@Apache::bridgetask::instance,$id);      push(@{$dimension{$dim}{'instances'}},$id);
       push(@{$Apache::bridgetask::instance{$dim}},$id);
     push(@Apache::bridgetask::instancelist,$id);      push(@Apache::bridgetask::instancelist,$id);
     $dimension{$id.'.optionalrequired'}=      $dimension{$dim}{$id.'.optionalrequired'}=
  &Apache::lonxml::get_param('OptionalRequired',$parstack,$safeeval);   &Apache::lonxml::get_param('OptionalRequired',$parstack,$safeeval);
     return '';      my $disabled = &Apache::lonxml::get_param('Disabled',$parstack,$safeeval);
       if (lc($disabled) eq 'yes') {
    $dimension{$dim}{$id.'.disabled'}='1';
       }
       my $result;
       if ($target eq 'edit') {
    $result = &Apache::edit::tag_start($target,$token);
    $result.=  
       &Apache::edit::text_arg('Id:','id',$token,10).' '.
       &Apache::edit::select_arg('Instance is Disabled:','Disabled',
         [['no', 'No'],
          ['yes','Yes'],],
         $token)
       .' <br /> '.
       &Apache::edit::text_arg('Required number of passed optional elements to pass the Instance:',
       'OptionalRequired',$token,4)
       .&Apache::edit::end_row().
       &Apache::edit::start_spanning_row();
       } elsif ($target eq 'modified') {
    my $constructtag=
       &Apache::edit::get_new_args($token,$parstack,$safeeval,
    'id','OptionalRequired','Disabled');
    if ($constructtag) {
       $result = &Apache::edit::rebuild_tag($token);
    }
       }
       return $result;
 }  }
   
 sub end_Instance {  sub end_Instance {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
     return '';      my $result;
       if ($target eq 'edit') {
    $result = &Apache::edit::tag_end($target,$token);
       }
       return $result;
 }  }
   
 sub start_InstanceText {  sub start_InstanceText {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
     if ($target eq 'web' || $target eq 'webgrade') {      my $result;
  &Apache::lonxml::startredirection();      if ($target eq 'grade' || $target eq 'web' || $target eq 'webgrade') {
    my $text=&Apache::lonxml::get_all_text('/instancetext',$parser,$style);
    my $dim = &get_dim_id();
    my $instance_id=$Apache::bridgetask::instance{$dim}[-1];
    $dimension{$dim}{$instance_id.'.text'}=$text;
       } elsif ($target eq 'edit') {
    $result = &Apache::edit::tag_start($target,$token);
       } elsif ($target eq 'modified') {
     }      }
     return '';      return $result;
 }  }
   
 sub end_InstanceText {  sub end_InstanceText {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;  
     my $instance_id=$Apache::bridgetask::instance[-1];  
     if ($target eq 'web' || $target eq 'webgrade') {  
  $dimension{$instance_id.'.text'}=&Apache::lonxml::endredirection();  
     }  
     return '';      return '';
 }  }
   
   sub insert_InstanceText {
       return '
   <InstanceText>
       <startouttext />
       <endouttext />
   </InstanceText>';
   }
   
 sub start_Criteria {  sub start_Criteria {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
       my $result = '';
     if ($target eq 'web' || $target eq 'webgrade' || $target eq 'grade') {      if ($target eq 'web' || $target eq 'webgrade' || $target eq 'grade') {
  &Apache::lonxml::startredirection();   my $criteria=&Apache::lonxml::get_all_text('/criteria',$parser,$style);
    my $dim = &get_dim_id();
    my $id=&get_id($parstack,$safeeval);
    if ($target eq 'web' || $target eq 'webgrade') {
       if ($target eq 'webgrade') {
    &Apache::lonxml::debug(" for $dim $id stashing results into $dim ");
    $dimension{$dim}{'result'} .= &internal_location($id);
       } else {
    &Apache::lonxml::debug(" not stashing $dim $id");
    #$result .= &internal_location($id);
       }
    }
    &Apache::lonxml::debug("Criteria $id with $dim");
    if (&Apache::londefdef::is_inside_of($tagstack,'Instance')) {
       my $instance_id=$Apache::bridgetask::instance{$dim}[-1];
       $dimension{$dim}{"criteria.$instance_id.$id"}=$criteria;
       $dimension{$dim}{"criteria.$instance_id.$id.type"}='criteria';
       $dimension{$dim}{"criteria.$instance_id.$id.mandatory"}=
    &Apache::lonxml::get_param('Mandatory',$parstack,$safeeval);
       push(@{$dimension{$dim}{$instance_id.'.criterias'}},"$instance_id.$id");
    } else {
       $dimension{$dim}{'criteria.'.$id}=$criteria;
       $dimension{$dim}{'criteria.'.$id.'.type'}='criteria';
       $dimension{$dim}{'criteria.'.$id.'.mandatory'}=
    &Apache::lonxml::get_param('Mandatory',$parstack,$safeeval);
       push(@{$dimension{$dim}{'criterias'}},$id);
    }
       } elsif ($target eq 'edit') {
    $result .=&Apache::edit::tag_start($target,$token);
    $result.=  
       &Apache::edit::text_arg('Id:','id',$token,10).' '.
       &Apache::edit::select_arg('Passing is Mandatory:','Mandatory',
         [['Y', 'Yes'],
          ['N','No'],],
         $token)
       .' <br /> '.&Apache::edit::end_row().
       &Apache::edit::start_spanning_row();
       } elsif ($target eq 'modified') {
    my $constructtag=
       &Apache::edit::get_new_args($token,$parstack,$safeeval,
    'id','Mandatory');
    if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
     }      }
     return '';      return $result;
   }
   
   sub layout_web_Criteria {
       my ($dim,$id,$criteria) = @_;
   
       my $version = &get_version();
       my $status= &get_criteria('status', $version,$dim,$id);
       my $comment=&get_criteria('comment',$version,$dim,$id);
       my $mandatory=($dimension{$dim}{'criteria.'.$id.'.mandatory'} ne 'N');
       if ($mandatory) {
    $mandatory='Mandatory';
       } else {
    $mandatory='Optional';
       }
       my $status_display=$status;
       $status_display=~s/^([a-z])/uc($1)/e;
       my $criteria_info.=
    '<div class="LC_'.$status.' LC_criteria">'."\n\t".'<h4>'
    .$mandatory.' Criteria</h4>'."\n\t".'<p class="LC_criteria_text">'
    ."\n";
       $criteria =~ s/^\s*//s;
       $criteria =~ s/\s*$//s;
       $criteria_info.= $criteria;
       $criteria_info.="\n\t".'</p>'.
    "\n\t".'<p class="LC_grade">'.$status_display.'</p>';
       if ($comment =~ /\w/) {
    $criteria_info.=
       "\n\t".
       '<p class="LC_comment">'.&mt('Comment: [_1]',$comment).'</p>';
       }
       $criteria_info.="\n".'</div>'."\n";
       
       return $criteria_info;
   }
   
   sub layout_webgrade_Criteria {
       my ($dim,$id,$criteria) = @_;
       my $link=&link($id);
       my $version = &get_version();
       my $status  = &get_criteria('status',$version,$dim,$id);
       my %lt = &Apache::lonlocal::texthash(
           'ungraded' => 'Ungraded',
           'fail'     => 'Fail',
           'pass'     => 'Pass',
           'review'   => 'Review',
           'comment'  => 'Additional Comment for Student',
       );
       my $comment = &get_criteria('comment',$version,$dim,$id);
       $comment = &HTML::Entities::encode($comment,'<>"&');
       my %checked;
       foreach my $which ('ungraded','fail','pass','review') {
    if ($status eq $which) { $checked{$which} = ' checked="checked"'; }
       }
       if (!%checked) { $checked{'ungraded'} = ' checked="checked"'; }
       my $buttons;
       foreach my $which  ('ungraded','fail','pass','review') {
    $buttons .= <<END_BUTTON;
    <label class="LC_GRADING_$which">
    <input type="radio" name="HWVAL_$link" value="$which"$checked{$which} />
    $lt{$which}
    </label>
   END_BUTTON
       }
       $criteria =~ s/^\s*//s;
       $criteria =~ s/\s*$//s;
       my $result = <<END_CRITERIA;
   <div class="LC_GRADING_criteria">
    <div class="LC_GRADING_criteriatext">
    $criteria
    </div>
    <div class="LC_GRADING_grade">
   $buttons
    </div>
    <label class="LC_GRADING_comment">
    $lt{'comment'}
    <textarea class="LC_GRADING_comment_area" name="HWVAL_comment_$link">$comment</textarea>
    </label>
   </div>
   END_CRITERIA
       $result .= &grading_history($version,$dim,$id);
       return $result;
 }  }
   
 sub end_Criteria {  sub end_Criteria {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
     my $instance_id=$Apache::bridgetask::instance[-1];      if ($target eq 'edit') {
     if ($target eq 'web' || $target eq 'webgrade' || $target eq 'grade') {      } elsif ($target eq 'modified') {
  my $criteria=&Apache::lonxml::endredirection();      }
  my $id=&get_id($parstack,$safeeval);  }
  $dimension{$instance_id.'.criteria.'.$id}=$criteria;  sub insert_Criteria {
  $dimension{$instance_id.'.criteria.'.$id.'.mandatory'}=      return '
     &Apache::lonxml::get_param('Mandatory',$parstack,$safeeval);  <Criteria>
  push(@{$dimension{$instance_id.'.criterias'}},$id);      <CriteriaText>
           <startouttext />
           <endouttext />
       </CriteriaText>
   </Criteria>';
   }
   
   sub start_CriteriaText {
       my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
       my $result;
       if ($target eq 'grade' || $target eq 'web' || $target eq 'webgrade') {
   
       } elsif ($target eq 'edit') {
    $result = &Apache::edit::tag_start($target,$token);
       } elsif ($target eq 'modified') {
     }      }
       return $result;
   }
   
   sub end_CriteriaText {
     return '';      return '';
 }  }
   
   sub insert_CriteriaText {
       return '
   <CriteriaText>
       <startouttext />
       <endouttext />
   </CriteriaText>';
   }
   
   sub start_GraderNote {
       my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
       my $result;
       if ($target eq 'webgrade') {
    $result = '<div class="LC_GRADING_gradernote"><b>'.
       &mt('Note to graders:').'</b>';
       } elsif ($target eq 'edit') {
    $result = &Apache::edit::tag_start($target,$token);
       } elsif ($target eq 'modified') {
       } elsif ($target eq 'web' || $target eq 'grade') {
    my $note=&Apache::lonxml::get_all_text('/gradernote',$parser,$style); 
       }
       return $result;
   }
   
   sub end_GraderNote {
       my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
   
       if ($target eq 'webgrade') {
    return '</div>';
       }
       return;
   }
   
   sub insert_GraderNote {
       return '
   <GraderNote>
       <startouttext />
       <endouttext />
   </GraderNote>';
   }
   
   
 sub proctor_validation_screen {  sub proctor_validation_screen {
     my ($slot) = @_;      my ($slot) = @_;
     my (undef,undef,$domain,$user) = &Apache::lonxml::whichuser();      my (undef,undef,$domain,$user) = &Apache::lonnet::whichuser();
     my $url=&Apache::lonnet::studentphoto($domain,$user,'jpg');      my $url=&Apache::lonnet::studentphoto($domain,$user,'jpg');
     $user=$env{'form.proctorname'};      if ($url ne '/adm/lonKaputt/lonlogo_broken.gif') {
     if ($env{'form.proctordomain'}) { $domain=$env{'form.proctordomain'}; }   $url = "<tr><td colspan=\"2\"><img src=\"$url\" /></td></tr>";
       } else {
    undef($url);
       }
   
       my $name=&Apache::loncommon::plainname($user,$domain);
       
     my $msg;      my $msg;
     if ($env{'form.proctorpassword'}) {      if ($env{'form.proctorpassword'}) {
  $msg='<p><font color="red">'.&mt("Failed to authenticate the proctor.")   $msg.='<p><span class="LC_warning">'
     .'</font></p>';      .&mt("Failed to authenticate the proctor.")
       .'</span></p>';
       }
   
       my $valid;
       my @possible_proctors=split(",",$slot->{'proctor'});
       foreach my $proctor (@possible_proctors) {
    if ($proctor =~ /$LONCAPA::username_re:$LONCAPA::domain_re/) {
       $valid = 1;
       last;
    }
       }
       if (!$valid) {
    $msg.='<p><span class="LC_error">'
       .&mt("No valid proctors are defined.")
       .'</span></p>';
     }      }
       
       if (!$env{'form.proctordomain'}) { $env{'form.proctordomain'}=$domain; }
       my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
       $uri = &HTML::Entities::encode($uri,'<>&"');
       my %lt = &Apache::lonlocal::texthash(
                               'prva' => "Proctor Validation",
                               'yoro' => "Your room's proctor needs to validate your access to this resource.",
                               'prus'  => "Proctor's Username:",
                               'pasw'  => "Password:",
                               'prdo'  => "Proctor's Domain:",
                               'vali'  => 'Validate',
                               'stui'  => "Student who should be logged in is:",
                               'name'  => "Name:",
                               'sid'   => "Student/Employee ID",
                               'unam'  => "Username:",
                              );
     my $result= (<<ENDCHECKOUT);      my $result= (<<ENDCHECKOUT);
 <h2>Proctor Validation</h2>  <h2>$lt{'prva'}</h2>
     <p>Your room's proctor needs to validate your access to this resource.</p>      <p>$lt{'yoro'}</p>
     $msg      $msg
 <form name="checkout" method="POST" action="$env{'request.uri'}">  <form name="checkout" method="post" action="$uri">
 <input type="hidden" name="validate" value="yes" />  <input type="hidden" name="validate" value="yes" />
 <input type="hidden" name="submitted" value="yes" />  <input type="hidden" name="submitted" value="yes" />
 <table>  <table>
   <tr><td>Proctor's Username:</td><td><input type="string" name="proctorname" value="$user" /></td></tr>    <tr><td>$lt{'prus'}</td><td><input type="string" name="proctorname" value="$env{'form.proctorname'}" autocomplete="off" /></td></tr>
   <tr><td>Password:</td><td><input type="password" name="proctorpassword" value="" /></td></tr>    <tr><td>$lt{'pasw'}</td><td><input type="password" name="proctorpassword" value="" autocomplete="off" /></td></tr>
   <tr><td>Proctor's Domain:</td><td><input type="string" name="proctordomain" value="$domain" /></td></tr>    <tr><td>$lt{'prdo'}</td><td><input type="string" name="proctordomain" value="$env{'form.proctordomain'}" autocomplete="off" /></td></tr>
   </table>
   <input type="submit" name="checkoutbutton" value="$lt{'vali'}"  /><br />
   <table border="1">
     <tr><td>
       <table>
         <tr><td colspan="2">$lt{'stui'}</td></tr>
         <tr><td>$lt{'name'}</td><td>$name</td></tr>
         <tr><td>$lt{'sid'}</td><td>$env{'environment.id'}</td></tr>
         <tr><td>$lt{'unam'}</td><td>$user:$domain</td></tr>
         $url
       </table>
     </tr></td>
 </table>  </table>
 <input type="submit" name="checkoutbutton" value="Validate"  /><br />  
 Student who should be logged in is:<br />  
 <img src="$url" /><br />  
 </form>  </form>
 ENDCHECKOUT  ENDCHECKOUT
   
     return $result;      return $result;
 }  }
   
Removed from v.1.24  
changed lines
  Added in v.1.271

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