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Diff for /loncom/interface/lonquickgrades.pm between versions 1.4 and 1.66

version 1.4, 2002/11/19 21:11:25 version 1.66, 2011/02/07 19:16:34
Line 1 Line 1
 # The LearningOnline Network with CAPA  # The LearningOnline Network with CAPA
 # Quick Student Grades Display  # Quick Student Grades Display
 #  #
 #   # $Id$
 #  #
 # Copyright Michigan State University Board of Trustees  # Copyright Michigan State University Board of Trustees
 #  #
Line 25 Line 25
 #  #
 # http://www.lon-capa.org/  # http://www.lon-capa.org/
 #  #
 # Created Nov. 14, 2002 by Jeremy Bowers  
   
 package Apache::lonquickgrades;  package Apache::lonquickgrades;
   
 use strict;  use strict;
 use Apache::Constants qw(:common :http);  use Apache::Constants qw(:common :http);
   use POSIX;
   use Apache::loncommon;
   use Apache::lonlocal;
   use Apache::lonnet;
   use Apache::grades;
   
 sub handler {  sub handler {
     my $r = shift;      my $r = shift;
       return real_handler($r);
   }
   
   sub real_handler {
       my $r = shift;
   
     &Apache::loncommon::get_unprocessed_cgi($ENV{QUERY_STRING});      &Apache::loncommon::get_unprocessed_cgi($ENV{QUERY_STRING});
   
     # Handle header-only request      # Handle header-only request
       if ($env{'browser.mathml'}) {
    &Apache::loncommon::content_type($r,'text/xml');
       } else {
    &Apache::loncommon::content_type($r,'text/html');
       }
     if ($r->header_only) {      if ($r->header_only) {
         if ($ENV{'browser.mathml'}) {   $r->send_http_header;
             $r->content_type('text/xml');  
         } else {  
             $r->content_type('text/html');  
         }  
         $r->send_http_header;  
         return OK;          return OK;
     }      }
   
     # Send header, don't cache this page      # Send header, don't cache this page
     if ($ENV{'browser.mathml'}) {  
         $r->content_type('text/xml');  
     } else {  
         $r->content_type('text/html');  
     }  
     &Apache::loncommon::no_cache($r);      &Apache::loncommon::no_cache($r);
     $r->send_http_header;      $r->send_http_header;
   
     # Create the nav map      my $showPoints =
     my $navmap = Apache::lonnavmaps::navmap->new(          $env{'course.'.$env{'request.course.id'}.'.grading'} eq 'standard';
                         $ENV{"request.course.fn"}.".db",      my $notshowSPRSlink =
                         $ENV{"request.course.fn"}."_parms.db", 1, 0);          (($env{'course.'.$env{'request.course.id'}.'.grading'} eq 'external')
         || ($env{'course.'.$env{'request.course.id'}.'.grading'} eq 'externalnototals'));
       my $notshowTotals=
           $env{'course.'.$env{'request.course.id'}.'.grading'} eq 'externalnototals';
       my $showCategories=
           $env{'course.'.$env{'request.course.id'}.'.grading'} eq 'categories';
   
   
       my $title = "Grading and Statistics";#$showPoints ? "Points Display" : "Completed Problems Display";
       my $brcrum = [{href=>"/adm/quickgrades",text => "Points Display"}];
       $r->print(&Apache::loncommon::start_page($title,undef,
                                               {'bread_crumbs' => $brcrum})
                );
   
       &startGradeScreen($r,'quick');
   
       $r->rflush();
   
   #    my $uname='korte';
   #    my $udom='gerd';
   
       my $uname;
       my $udom;
   
       my ($navmap,$totalParts,$totalPossible,$totalRight,$totalAttempted,$topLevelParts,$topLevelRight,$topLevelAttempted)=
          &getData($showPoints,$uname,$udom);
   
       if ($showCategories) {
          &outputCategories($r,$showPoints,$notshowTotals,
                    $navmap,$totalParts,$totalPossible,$totalRight,$totalAttempted,$topLevelParts,$topLevelRight,$topLevelAttempted);
       } else {
          &outputTable($r,$showPoints,$notshowTotals,
                    $navmap,$totalParts,$totalPossible,$totalRight,$totalAttempted,$topLevelParts,$topLevelRight,$topLevelAttempted);
       }
       &endGradeScreen($r);
       return OK;
   
     # Keep this hash in sync with %statusIconMap in lonnavmaps; they  }
     # should match color/icon  
     my $res = $navmap->firstResource(); # temp resource to access constants  
   
     my $green = "#AAFFAA";  sub startGradeScreen {
     my $red = "#FFAAAA";      my ($r,$mode)=@_;
     my $yellow = "#FFFFAA";  
     my $orange = "#FFBB88";      my $showPoints =
     my $neutral = "";          $env{'course.'.$env{'request.course.id'}.'.grading'} eq 'standard';
     my %statusColorMap =       my $notshowSPRSlink =
         ( $res->NETWORK_FAILURE    => $neutral,          (($env{'course.'.$env{'request.course.id'}.'.grading'} eq 'external')
           $res->NOTHING_SET        => $neutral,        || ($env{'course.'.$env{'request.course.id'}.'.grading'} eq 'externalnototals')
           $res->CORRECT            => $green,        || ($env{'course.'.$env{'request.course.id'}.'.grading'} eq 'categories'));
           $res->EXCUSED            => $green,      my $notshowTotals=
           $res->PAST_DUE_NO_ANSWER => $orange,          $env{'course.'.$env{'request.course.id'}.'.grading'} eq 'externalnototals';
           $res->PAST_DUE_ANSWER_LATER => $orange,      my $showCategories=
           $res->ANSWER_OPEN        => $orange,          $env{'course.'.$env{'request.course.id'}.'.grading'} eq 'categories';
           $res->OPEN_LATER         => $neutral,  
           $res->TRIES_LEFT         => $neutral,      my $allowed_to_view =  &Apache::lonnet::allowed('vgr',$env{'request.course.id'});
           $res->INCORRECT          => $orange,      my $allowed_to_edit =  &Apache::lonnet::allowed('mgr',$env{'request.course.id'});
           $res->OPEN               => $yellow,  
           $res->ATTEMPTED          => $yellow );      if ($allowed_to_view) {
              my @notes;
     if (!defined($navmap)) {         push(@notes,&mt('Students do not see total points.')) if ($notshowTotals);
         my $requrl = $r->uri;         push(@notes,&mt('Students do not see link to spreadsheet.')) if ($notshowSPRSlink);
         $ENV{'user.error.msg'} = "$requrl:bre:0:0:Course not initialized";         push(@notes,&mt('Students will see points based on problem weights.')) if ($showPoints);
         return HTTP_NOT_ACCEPTABLE;         push(@notes,&mt('Students will see points based on categories.')) if ($showCategories);
     }         push(@notes, &Apache::lonhtmlcommon::coursepreflink(&mt('Grade display settings'),'grading'));
           $r->print(&Apache::loncommon::head_subbox(join('  ',@notes)));
     # Header      }
     $r->print(&Apache::loncommon::bodytag('Quick Score Display','',  
                                           ''));  
   
     $navmap->init();  
   
     # End navmap using boilerplate      $r->print("\n".'<ul class="LC_TabContentBigger" id="main">');
       $r->print("\n".'<li'.($mode eq 'quick'?' class="active"':'').'><a href="/adm/quickgrades"><b>&nbsp;&nbsp;&nbsp;&nbsp;'.
                                             ($showPoints?&mt('Individual Points Overview'):($showCategories?&mt('Grades Overview'):&mt('Completion Overview'))).
                                             '&nbsp;&nbsp;&nbsp;&nbsp;</b></a></li>');
   
       if (!($showPoints || $notshowSPRSlink) || ($allowed_to_view)) {
          $r->print("\n".'<li'.($mode eq 'spreadsheet'?' class="active"':'').'><a href="/adm/'.($allowed_to_view?'classcalc':'studentcalc').'"><b>'.
                                                                    &mt('Spreadsheet (Detailed)').'</b></a></li>');
       }
       if ($allowed_to_view) {
          $r->print("\n".'<li'.($mode eq 'statistics'?' class="active"':'').'><a href="/adm/statistics"><b>'.
                                                                    &mt('Statistics and Reports').'</b></a></li>');
   
          $r->print("\n".'<li'.($mode eq 'chart'?' class="active"':'').'><a href="/adm/statistics?reportSelected=student_assessment"><b>'.
                                                                    &mt('Assessment Overview Chart').'</b></a></li>');
   
       }
       if ($allowed_to_edit) {
          $r->print("\n".'<li'.($mode eq 'grading'?' class="active"':'').'><a href="/adm/grades"><b>&nbsp;&nbsp;&nbsp;&nbsp;'.
                                                                    &mt('Content Grading').'&nbsp;&nbsp;&nbsp;&nbsp;</b></a></li>');
          if ($env{'form.symb'}) {
             $r->print("\n".'<li'.($mode eq 'probgrading'?' class="active"':'').'><a href="/adm/grades?symb='.
                                                 &Apache::lonhtmlcommon::entity_encode($env{'form.symb'}).
                                                 '&command=gradingmenu"><b>&nbsp;&nbsp;&nbsp;&nbsp;'.
                                                 &mt('Problem Grading').'&nbsp;&nbsp;&nbsp;&nbsp;</b></a></li>');
   
          }
       }
       $r->print("\n".'</ul>'."\n");
       $r->print('<div class="LC_Box" style="clear:both;margin:0;"><div id="maincoursedoc" style="margin:0 0;padding:0 0;"><div class="LC_ContentBox" id="mainCourseDocuments" style="display: block;">');
   }
   
   sub endGradeScreen {
      my ($r)=@_;
      $r->print('</div></div></div>');
   }
   
   
   sub getData {
   
       my ($showPoints,$uname,$udom)=@_;
   
       &Apache::lonnet::logthis("About to call with $uname $udom");
   
       # Create the nav map
       my $navmap = Apache::lonnavmaps::navmap->new($uname,$udom);
   
       my $res = $navmap->firstResource(); # temp resource to access constants
   
     my $iterator = $navmap->getIterator(undef, undef, undef, 1);      my $iterator = $navmap->getIterator(undef, undef, undef, 1);
     my $depth = 1;      my $depth = 1;
     $iterator->next(); # ignore first BEGIN_MAP      $iterator->next(); # ignore first BEGIN_MAP
     my $curRes = $iterator->next();      my $curRes = $iterator->next();
     my $totalParts = 0;  
     my $totalRight = 0;  
     my $totalCurrentlyPossible = 0;  
           
     $r->print("<div width=\"50%\">\n"); # use this to format the col      # General overview of the following: Walk along the course resources.
          # For every problem in the resource, tell its parent maps how many
       # parts and how many parts correct it has. After that, each map will
       # have a count of the total parts underneath it, correct and otherwise.
       # After that, we will walk through the course again and read off
       # maps in order, with their data. 
       # (If in the future people decide not to be cumulative, only add
       #  the counts to the parent map.)
       # For convenience, "totalParts" is also "totalPoints" when we're looking
       #  at points; I can't come up with a variable name that makes sense
       #  equally for both cases.
   
       my $totalParts = 0; my $totalPossible = 0; my $totalRight = 0;
       my $totalAttempted = 0;
       my $now = time();
       my $topLevelParts = 0; my $topLevelRight = 0; my $topLevelAttempted = 0;
   
       # Pre-run: Count parts correct
     while ( $depth > 0 ) {      while ( $depth > 0 ) {
         if ($curRes == $iterator->BEGIN_MAP()) {$depth++;}          if ($curRes == $iterator->BEGIN_MAP()) {$depth++;}
         if ($curRes == $iterator->END_MAP()) { $depth--; }          if ($curRes == $iterator->END_MAP()) { $depth--; }
   
         if (ref($curRes) && $curRes->is_problem()) {          if (ref($curRes) && $curRes->is_problem() && !$curRes->randomout)
             my $title = $curRes->compTitle();          {
             my $stack = $iterator->getStack();              # Get number of correct, incorrect parts
             my $src = Apache::lonnavmaps::getLinkForResource($stack);  
             my $srcHasQuestion = $src =~ /\?/;  
             my $link = $src.  
                 ($srcHasQuestion?'&':'?') .  
                 'symb='.&Apache::lonnet::escape($curRes->symb()).  
                 '"';  
             my $parts = $curRes->parts();              my $parts = $curRes->parts();
             my $multipart = scalar(@{$parts}) > 1;              my $partsRight = 0;
       my $partsCount = 0;
       my $partsAttempted = 0;
               my $stack = $iterator->getStack();
               
             for my $part (@{$parts}) {              for my $part (@{$parts}) {
                 if ($multipart && $part eq '0') { next; }   my $completionStatus = $curRes->getCompletionStatus($part);
                 $totalParts++;   my $dateStatus = $curRes->getDateStatus($part);
   
                 my $status = $curRes->status($part);                  if ($completionStatus == $curRes->EXCUSED()) {
                 my $color = $statusColorMap{$status};                      next;
                 if ($color eq $green) { # I'm being bad here... ;-)  
                     $totalRight++; $totalCurrentlyPossible++;  
                 }                  }
                 if ($color eq $yellow || $color eq $orange) {   if ($showPoints) {
                     $totalCurrentlyPossible++;      my $score = 0;
       # If we're not telling status and the answer date isn't passed yet, 
       # it's an "attempted" point
       if ((($curRes->problemstatus($part) eq 'no') ||
                           ($curRes->problemstatus($part) eq 'no_feedback_ever')) &&
    ($dateStatus != $curRes->ANSWER_OPEN)) {
    my $status = $curRes->simpleStatus($part);
    if ($status == $curRes->ATTEMPTED) {
       $partsAttempted += $curRes->weight($part);
       $totalAttempted += $partsAttempted;
    }
       } else {
    $score = &Apache::grades::compute_points($curRes->weight($part), $curRes->awarded($part));
       }
       $partsRight += $score;
       $totalRight += $score;
       $partsCount += $curRes->weight($part);
   
       if ($curRes->opendate($part) < $now) {
    $totalPossible += $curRes->weight($part);
       }
       $totalParts += $curRes->weight($part);
    } else {
       my $status = $curRes->simpleStatus($part);
       my $thisright = 0;
       $partsCount++;
       if ($status == $curRes->CORRECT ||
    $status == $curRes->PARTIALLY_CORRECT ) {
    $partsRight++;
    $totalRight++;
    $thisright = 1;
       }
   
       if ($status == $curRes->ATTEMPTED) {
    $partsAttempted++;
    $totalAttempted++;
       }
       
       my $dateStatus = $curRes->getDateStatus($part);
       $totalParts++;
       if ($curRes->opendate($part) < $now) {
    $totalPossible++;
       }
    }
               }
   
               if ($depth == 1) { # in top-level only
    $topLevelParts += $partsCount;
    $topLevelRight += $partsRight;
    $topLevelAttempted += $partsAttempted;
       }
   
               # Crawl down stack and record parts correct and total
               for my $res (@{$stack}) {
                   if (ref($res) && $res->is_map()) {
                       if (!defined($res->{DATA}->{CHILD_PARTS})) {
                           $res->{DATA}->{CHILD_PARTS} = 0;
                           $res->{DATA}->{CHILD_CORRECT} = 0;
    $res->{DATA}->{CHILD_ATTEMPTED} = 0;
                       }
                       
                       $res->{DATA}->{CHILD_PARTS} += $partsCount;
                       $res->{DATA}->{CHILD_CORRECT} += $partsRight;
       $res->{DATA}->{CHILD_ATTEMPTED} += $partsAttempted;
                 }                  }
               }
           }
           $curRes = $iterator->next();
       }
       return ($navmap,$totalParts,$totalPossible,$totalRight,$totalAttempted,$topLevelParts,$topLevelRight,$topLevelAttempted);
   }
   
   #
   # Outputting everything.
   #
   
   sub outputTable {
   
       my ($r,$showPoints,$notshowTotals,
              $navmap,$totalParts,$totalPossible,$totalRight,$totalAttempted,$topLevelParts,$topLevelRight,$topLevelAttempted)=@_;
   
       my @start = (255, 255, 192);
       my @end   = (0, 192, 0);
   
       my $indentString = '&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;';
   
       # Second pass: Print the maps.
       $r->print(&Apache::loncommon::start_data_table()
                .&Apache::loncommon::start_data_table_header_row()
                .'<th>'.&mt('Folder').'</th>');
       my $title = &mt($showPoints ? "Points Scored" : "Done");
       if ($totalAttempted) {
           $title .= " / " . &mt("Attempted");
       }
       $r->print("<th>$title".($notshowTotals?'':" / ".&mt('Total')).'</th>'
                .&Apache::loncommon::end_data_table_header_row());
   #
   # Output of folder scores
   #
   
       my $iterator = $navmap->getIterator(undef, undef, undef, 1);
       my $depth = 1;
       $iterator->next(); # ignore first BEGIN_MAP
       my $curRes = $iterator->next();
   
                 $r->print("<div style=\"background-color: $color\" width=\"100%\">" .      while ($depth > 0) {
                           "<nobr><a href=\"$link\">$title" .           if ($curRes == $iterator->BEGIN_MAP()) {$depth++;}
                           ($multipart ? ', ' . $part : '') . '</a></nobr></div>'          if ($curRes == $iterator->END_MAP()) { $depth--; }
                           ."\n");  
   
                 if (!($totalParts % 20)) { $r->rflush(); }          if (ref($curRes) && $curRes->is_map()) {
               my $title = $curRes->compTitle();
               
               my $correct = $curRes->{DATA}->{CHILD_CORRECT};
               my $total = $curRes->{DATA}->{CHILD_PARTS};
       my $attempted = $curRes->{DATA}->{CHILD_ATTEMPTED};
   
               if ($total > 0) {
                   my $ratio;
                   $ratio = $correct / $total;
                   my $color = &mixColors(\@start, \@end, $ratio);
                   $r->print(&Apache::loncommon::start_data_table_row()
                            .'<td style="background-color:'.$color.';">');
                   
    my $thisIndent = '';
                   for (my $i = 1; $i < $depth; $i++) { $thisIndent .= $indentString; }
                   
                   $r->print("$thisIndent$title</td>");
    if ($totalAttempted) {
       $r->print('<td valign="top">'
                                .$thisIndent
                                .'<span class="LC_nobreak">'
                                .$correct.' / '.$attempted.($notshowTotals?'':' / '.$total)
                                .'</span></td>'
                                .&Apache::loncommon::end_data_table_row()
                       );
    } else {
       $r->print('<td valign="top">'
                                .$thisIndent
                                .'<span class="LC_nobreak">'
                                .$correct.($notshowTotals?'':' / '.$total)
                                .'</span></td>'
                                .&Apache::loncommon::end_data_table_row());
    }
             }              }
         }          }
   
         $curRes = $iterator->next();          $curRes = $iterator->next();
     }      }
   
     $r->print("<br><hr>\n");      # If there were any problems at the top level, print an extra "catchall"
     $r->print("<div width=\"100%\" align=\"right\">");      if ($topLevelParts > 0) {
     $r->print("Total Parts Correct: <b>$totalRight</b><br>");          my $ratio = $topLevelRight / $topLevelParts;
     $r->print("Number Of Parts Possibly Correct: <b>$totalCurrentlyPossible</b><br>");          my $color = mixColors(\@start, \@end, $ratio);
     $r->print("Total Parts In Course: <b>$totalParts</b></div></div>\n\n");          $r->print(&Apache::loncommon::start_data_table_row()
                    .'<td style="background-color:'.$color.';">');
           $r->print(&mt("Problems Not Contained In A Folder")."</td><td>");
           $r->print("$topLevelRight / $topLevelParts</td>"
                    .&Apache::loncommon::end_data_table_row());
       }
   
     $r->print("</body></html>");  #
   # show totals (if applicable), close table
   #
       if ($showPoints) {
           my $maxHelpLink = Apache::loncommon::help_open_topic("Quick_Grades_Possibly_Correct");
   
     $navmap->untieHashes();          $title = $showPoints ? "Points" : "Parts Done";
           my $totaltitle = $showPoints ? &mt("Awarded Total Points") : &mt("Total Parts Done");
           $r->print(&Apache::loncommon::start_data_table_row()
                    .'<td colspan="2" align="right">'.$totaltitle.': <b>'.$totalRight.'</b><br />');
           $r->print(&mt('Max Possible To Date')." $maxHelpLink: <b>$totalPossible</b><br />");
           $title = $showPoints ? "Points" : "Parts";
           $r->print(&mt("Total $title In Course").': <b>'.$totalParts.'</b></td>'
                    .&Apache::loncommon::end_data_table_row());
       }
   
     return OK;      $r->print(&Apache::loncommon::end_data_table()
                .&Apache::loncommon::end_page());
   
   }
   
   #
   # === Outputting category-based grades.
   #
   # $category{'order'}: output order of categories by id
   # $category{'all'}: complete list of all categories 
   # $category{$id.'_name'}: display-name of category
   #
   
   sub outputCategories {
   
       my ($r,$showPoints,$notshowTotals,
              $navmap,$totalParts,$totalPossible,$totalRight,$totalAttempted,$topLevelParts,$topLevelRight,$topLevelAttempted)=@_;
   # Take care of storing and retrieving categories
   
       my $cangrade=&Apache::lonnet::allowed('mgr');
   
       my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
       my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
       my %categories=();
   # Loading old categories
       %categories=&Apache::lonnet::dump('grading_categories',$cdom,$cnum);
   # Storing
       if (($cangrade) && (($env{'form.storechanges'}) || ($env{'form.storemove'} ne ''))) {
   # Process the changes
           %categories=&process_category_edits($r,$cangrade,%categories);
   # Actually store
           &Apache::lonnet::put('grading_categories',\%categories,$cdom,$cnum);
       }
   # new categories loaded now
   # Form only generated if user can change the grading categories
       if ($cangrade) {
           $r->print('<form method="post">');
       }
   #
       &output_category_table($r,$cangrade,$navmap,%categories);
   #
       if ($cangrade) {
           $r->print('<input type="hidden" name="storemove" value="" />'.
                     '<input type="submit" name="storechanges" value="'.&mt("Save changes to grading categories").'" /></form>');
       }
   }
   
   #
   # Process editing commands, update category hash
   #
   
   sub process_category_edits {
       my ($r,$cangrade,%categories)=@_;
       unless ($cangrade) { return %categories; }
   #
   # Business logic here
   #
       return %categories;
   }
   
   #
   # Output the table
   #
   
   sub output_category_table {
       my ($r,$cangrade,$navmaps,%categories)=@_;
       my $sum=0;
       $r->print(&Apache::loncommon::start_data_table());
   #
       &output_category_table_header($r,$cangrade);
   #
       my @order=split(/\,/,$categories{'order'});
   #
   # FIXME: Debug only
       @order=('3131_4123_42124','4124_34231_3412');
   #
       my $maxpos=$#order;
       for (my $i=0;$i<=$maxpos;$i++) {
           my ($value,$weight)=&output_and_calc_category($r,$cangrade,$navmaps,$order[$i],$i,$maxpos,%categories);
       }
   #
       &bottom_line_category($r,$cangrade);
   #
       $r->print(&Apache::loncommon::end_data_table());
       return $sum;
   }
   
   sub output_category_table_header {
       my ($r,$cangrade)=@_;
       $r->print(&Apache::loncommon::start_data_table_header_row());
       if ($cangrade) {
           $r->print('<th colspan="2">'.&mt("Move").'</th><th>'.&mt('Action').'</th>');
       }
       $r->print('<th>'.&mt('Category').'</th>'.
                 '<th>'.&mt('Contents').'</th>'.
                 '<th>'.&mt('Calculation').'</th>'.
                 '<th>'.&mt('Weight').'</th>'.
                 '<th>'.&mt('Percent Overall').'</th>');
       $r->print(&Apache::loncommon::end_data_table_header_row());
   }
   
   
   #
   # Output one category to table
   #
   
   sub output_and_calc_category {
       my ($r,$cangrade,$navmaps,$id,$currentpos,$maxpos,%categories)=@_;
       my $value=0;
       my $weight=0;
       my $iconpath = &Apache::loncommon::lonhttpdurl($r->dir_config('lonIconsURL') . "/");
       my %lt=&Apache::lonlocal::texthash(
              'up' => 'Move Up',
              'dw' => 'Move Down');
       $r->print("\n".&Apache::loncommon::start_data_table_row());
   
       if ($cangrade) {
           $r->print(<<ENDMOVE);
   <td>
   <div class="LC_docs_entry_move">
     <a href='/adm/quickgrades?cmd=up_$id&storechanges=1'>
       <img src="${iconpath}move_up.gif" alt='$lt{'up'}' class="LC_icon" />
     </a>
   </div>
   <div class="LC_docs_entry_move">
     <a href='/adm/quickgrades?cmd=down_$id&storechanges=1'>
       <img src="${iconpath}move_down.gif" alt='$lt{'dw'}' class="LC_icon" />
     </a>
   </div>
   </td>
   ENDMOVE
           $r->print("\n<td>\n<select name='newpos_$id' onchange='this.form.storemove.value=\"$id\";this.form.submit()'>");
           for (my $i=0;$i<=$maxpos;$i++) {
               if ($i==$currentpos) {
                   $r->print('<option value="" selected="selected">('.$i.')</option>');
               } else {
                   $r->print('<option value="'.$i.'">'.$i.'</option>');
               }
           }
           $r->print("\n</select>\n</td>\n");
   
       }
       $r->print(&Apache::loncommon::end_data_table_row()."\n");
       return ($value,$weight);
   }
   
   #
   # Bottom line with grades
   #
   
   sub bottom_line_category {
       my ($r,$cangrade)=@_;
   }
   
   #
   # Make one new category
   #
   
   sub make_new_category {
       my ($r,$cangrade,$ordernum,%categories)=@_;
       unless ($cangrade) { return %categories; }
   # Generate new ID
       my $id=time.'_'.$$.'_'.rand(10000);
   # Add new ID to list of all IDs ever created in this course
       $categories{'all'}.=','.$id;
       $categories{'all'}=~s/^\,//;
   # Add new ID to ordered list of displayed and evaluated categories
       $categories{'order'}.=','.$id;
       $categories{'order'}=~s/^\,//;
   # Move it into desired space
       if (defined($ordernum)) {
           %categories=&move_category($id,$cangrade,$ordernum,%categories);
       }
       return %categories;
   }
   
   #
   # Move a category to a desired position n the display order
   #
   
   sub move_category {
       my ($id,$cangrade,$ordernum,%categories)=@_;
       unless ($cangrade) { return %categories; }
       my @order=split(/\,/,$categories{'order'});
   # Where is the index currently?
       my $currentpos=&current_pos_category($id,%categories);
       if (defined($currentpos)) {
           if ($currentpos<$ordernum) {
   # This is moving to a higher index
   # ....X1234....
   # ....1234X....
               for (my $i=$currentpos;$i<$ordernum;$i++) {
                   $order[$i]=$order[$i+1];
               }
               $order[$ordernum]=$id;
           }
           if ($currentpos>$ordernum) {
   # This is moving to a lower index
   # ....1234X....
   # ....X1234....
               for (my $i=$currentpos;$i>$ordernum;$i--) {
                   $order[$i]=$order[$i-1];
               }
               $order[$ordernum]=$id;
           }
       }
       $categories{'order'}=join(',',@order);
       return %categories;
   }
   
   #
   #  Find current postion of a category in the order
   #
   
   sub current_pos_category {
       my ($id,%categories)=@_;
       my @order=split(/\,/,$categories{'order'});
       for (my $i=0;$i<=$#order;$i++) {
           if ($order[$i] eq $id) { return $i; }
       }
   # not found
       return undef;
   }
   
   #
   # Set name of a category
   #
   sub set_category_name {
       my ($canedit,$id,$name,%categories)=@_;
       unless ($canedit) { return %categories; }
       $categories{$id.'_name'}=$name;
       return %categories;
   }
   
   #
   # === end category-related
   #
   #
   # Pass this two refs to arrays for the start and end color, and a number
   # from 0 to 1 for how much of the latter you want to mix in. It will
   # return a string ready to show ("#FFC309");
   
   sub mixColors {
       my $start = shift;
       my $end = shift;
       my $ratio = shift;
       
       my ($a,$b);
       my $final = "";
       $a = $start->[0]; $b = $end->[0];
       my $mix1 = POSIX::floor((1-$ratio)*$a + $ratio*$b);
       $a = $start->[1]; $b = $end->[1];
       my $mix2 = POSIX::floor((1-$ratio)*$a + $ratio*$b);
       $a = $start->[2]; $b = $end->[2];
       my $mix3 = POSIX::floor((1-$ratio)*$a + $ratio*$b);
   
       $final = sprintf "%02x%02x%02x", $mix1, $mix2, $mix3;
       return "#" . $final;
 }  }
   
 1;  1;
Removed from v.1.4  
changed lines
  Added in v.1.66

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