Annotation of loncom/interface/statistics/lonstudentassessment.pm, revision 1.129

1.1       stredwic    1: # The LearningOnline Network with CAPA
                      2: #
1.128     bowersj2    3: # $Id: lonstudentassessment.pm,v 1.127 2006/01/22 21:11:59 bowersj2 Exp $
1.1       stredwic    4: #
                      5: # Copyright Michigan State University Board of Trustees
                      6: #
                      7: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
                      8: # LON-CAPA is free software; you can redistribute it and/or modify
                      9: # it under the terms of the GNU General Public License as published by
                     10: # the Free Software Foundation; either version 2 of the License, or
                     11: # (at your option) any later version.
                     12: #
                     13: # LON-CAPA is distributed in the hope that it will be useful,
                     14: # but WITHOUT ANY WARRANTY; without even the implied warranty of
                     15: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
                     16: # GNU General Public License for more details.
                     17: #
                     18: # You should have received a copy of the GNU General Public License
                     19: # along with LON-CAPA; if not, write to the Free Software
                     20: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
                     21: #
                     22: # /home/httpd/html/adm/gpl.txt
                     23: #
                     24: # http://www.lon-capa.org/
                     25: #
                     26: # (Navigate problems for statistical reports
1.28      matthew    27: #
                     28: #######################################################
                     29: #######################################################
                     30: 
                     31: =pod
                     32: 
                     33: =head1 NAME
                     34: 
                     35: lonstudentassessment
                     36: 
                     37: =head1 SYNOPSIS
                     38: 
                     39: Presents assessment data about a student or a group of students.
                     40: 
                     41: =head1 Subroutines
                     42: 
                     43: =over 4 
                     44: 
                     45: =cut
                     46: 
                     47: #######################################################
                     48: #######################################################
1.1       stredwic   49: 
1.21      minaeibi   50: package Apache::lonstudentassessment;
1.1       stredwic   51: 
                     52: use strict;
1.28      matthew    53: use Apache::lonstatistics;
1.1       stredwic   54: use Apache::lonhtmlcommon;
1.77      matthew    55: use Apache::loncommon();
1.1       stredwic   56: use Apache::loncoursedata;
1.28      matthew    57: use Apache::lonnet; # for logging porpoises
1.75      matthew    58: use Apache::lonlocal;
1.112     matthew    59: use Time::HiRes;
1.31      matthew    60: use Spreadsheet::WriteExcel;
1.76      matthew    61: use Spreadsheet::WriteExcel::Utility();
1.31      matthew    62: 
                     63: #######################################################
                     64: #######################################################
                     65: =pod
                     66: 
                     67: =item Package Variables
                     68: 
                     69: =over 4
                     70: 
                     71: =item $Statistics Hash ref to store student data.  Indexed by symb,
                     72:       contains hashes with keys 'score' and 'max'.
                     73: 
                     74: =cut
                     75: 
                     76: #######################################################
                     77: #######################################################
1.1       stredwic   78: 
1.30      matthew    79: my $Statistics;
                     80: 
1.28      matthew    81: #######################################################
                     82: #######################################################
                     83: 
                     84: =pod
                     85: 
1.31      matthew    86: =item $show_links 'yes' or 'no' for linking to student performance data
                     87: 
                     88: =item $output_mode 'html', 'excel', or 'csv' for output mode
                     89: 
1.32      matthew    90: =item $show 'all', 'totals', or 'scores' determines how much data is output
1.31      matthew    91: 
1.49      matthew    92: =item $single_student_mode evaluates to true if we are showing only one
                     93: student.
                     94: 
1.31      matthew    95: =cut
                     96: 
                     97: #######################################################
                     98: #######################################################
                     99: my $show_links;
                    100: my $output_mode;
1.87      matthew   101: my $chosen_output;
1.49      matthew   102: my $single_student_mode;
1.28      matthew   103: 
1.31      matthew   104: #######################################################
                    105: #######################################################
                    106: # End of package variable declarations
1.28      matthew   107: 
1.31      matthew   108: =pod
1.28      matthew   109: 
1.31      matthew   110: =back
1.28      matthew   111: 
1.31      matthew   112: =cut
1.28      matthew   113: 
1.31      matthew   114: #######################################################
                    115: #######################################################
1.28      matthew   116: 
1.31      matthew   117: =pod
1.28      matthew   118: 
1.31      matthew   119: =item &BuildStudentAssessmentPage()
1.28      matthew   120: 
1.31      matthew   121: Inputs: 
1.4       stredwic  122: 
1.31      matthew   123: =over 4
1.28      matthew   124: 
                    125: =item $r Apache Request
                    126: 
                    127: =item $c Apache Connection 
                    128: 
                    129: =back
                    130: 
                    131: =cut
                    132: 
                    133: #######################################################
                    134: #######################################################
1.1       stredwic  135: sub BuildStudentAssessmentPage {
1.30      matthew   136:     my ($r,$c)=@_;
1.74      matthew   137:     #
1.30      matthew   138:     undef($Statistics);
1.66      matthew   139:     undef($show_links);
                    140:     undef($output_mode);
1.87      matthew   141:     undef($chosen_output);
1.66      matthew   142:     undef($single_student_mode);
1.74      matthew   143:     #
                    144:     my %Saveable_Parameters = ('Status' => 'scalar',
                    145:                                'chartoutputmode' => 'scalar',
                    146:                                'chartoutputdata' => 'scalar',
                    147:                                'Section' => 'array',
                    148:                                'StudentData' => 'array',
                    149:                                'Maps' => 'array');
                    150:     &Apache::loncommon::store_course_settings('chart',\%Saveable_Parameters);
                    151:     &Apache::loncommon::restore_course_settings('chart',\%Saveable_Parameters);
                    152:     #
                    153:     &Apache::lonstatistics::PrepareClasslist();
                    154:     #
1.65      matthew   155:     $single_student_mode = 0;
1.121     albertel  156:     $single_student_mode = 1 if ($env{'form.SelectedStudent'});
1.100     matthew   157:     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
                    158:                                             ['selectstudent']);
1.121     albertel  159:     if ($env{'form.selectstudent'}) {
1.59      matthew   160:         &Apache::lonstatistics::DisplayClasslist($r);
                    161:         return;
                    162:     }
1.30      matthew   163:     #
1.31      matthew   164:     # Print out the HTML headers for the interface
                    165:     #    This also parses the output mode selector
1.54      matthew   166:     #    This step must *always* be done.
1.30      matthew   167:     $r->print(&CreateInterface());
1.31      matthew   168:     $r->print('<input type="hidden" name="notfirstrun" value="true" />');
1.49      matthew   169:     $r->print('<input type="hidden" name="sort" value="'.
1.121     albertel  170:               $env{'form.sort'}.'" />');
1.7       stredwic  171:     $r->rflush();
1.58      matthew   172:     #
1.121     albertel  173:     if (! exists($env{'form.notfirstrun'}) && ! $single_student_mode) {
1.31      matthew   174:         return;
                    175:     }
1.119     matthew   176:     $r->print('<h4>'.
                    177:               &Apache::lonstatistics::section_and_enrollment_description().
                    178:               '</h4>');
1.31      matthew   179:     #
                    180:     my $initialize     = \&html_initialize;
                    181:     my $output_student = \&html_outputstudent;
                    182:     my $finish         = \&html_finish;
                    183:     #
                    184:     if ($output_mode eq 'excel') {
                    185:         $initialize     = \&excel_initialize;
                    186:         $output_student = \&excel_outputstudent;
                    187:         $finish         = \&excel_finish;
                    188:     } elsif ($output_mode eq 'csv') {
                    189:         $initialize     = \&csv_initialize;
                    190:         $output_student = \&csv_outputstudent;
                    191:         $finish         = \&csv_finish;
                    192:     }
1.30      matthew   193:     #
                    194:     if($c->aborted()) {  return ; }
1.31      matthew   195:     #
1.49      matthew   196:     # Determine which students we want to look at
                    197:     my @Students;
                    198:     if ($single_student_mode) {
                    199:         @Students = (&Apache::lonstatistics::current_student());
                    200:         $r->print(&next_and_previous_buttons());
                    201:         $r->rflush();
                    202:     } else {
                    203:         @Students = @Apache::lonstatistics::Students;
                    204:     }
1.56      matthew   205:     #
                    206:     # Perform generic initialization tasks
                    207:     #       Since we use lonnet::EXT to retrieve problem weights,
                    208:     #       to ensure current data we must clear the caches out.
                    209:     #       This makes sure that parameter changes at the student level
                    210:     #       are immediately reflected in the chart.
                    211:     &Apache::lonnet::clear_EXT_cache_status();
1.69      matthew   212:     #
                    213:     # Clean out loncoursedata's package data, just to be safe.
                    214:     &Apache::loncoursedata::clear_internal_caches();
1.49      matthew   215:     #
1.31      matthew   216:     # Call the initialize routine selected above
                    217:     $initialize->($r);
1.49      matthew   218:     foreach my $student (@Students) {
1.31      matthew   219:         if($c->aborted()) { 
                    220:             $finish->($r);
                    221:             return ; 
1.1       stredwic  222:         }
1.31      matthew   223:         # Call the output_student routine selected above
                    224:         $output_student->($r,$student);
                    225:     }
                    226:     # Call the "finish" routine selected above
                    227:     $finish->($r);
                    228:     #
                    229:     return;
                    230: }
                    231: 
                    232: #######################################################
                    233: #######################################################
1.49      matthew   234: sub next_and_previous_buttons {
                    235:     my $Str = '';
                    236:     $Str .= '<input type="hidden" name="SelectedStudent" value="'.
1.121     albertel  237:         $env{'form.SelectedStudent'}.'" />';
1.49      matthew   238:     #
                    239:     # Build the previous student link
                    240:     my $previous = &Apache::lonstatistics::previous_student();
                    241:     my $previousbutton = '';
                    242:     if (defined($previous)) {
                    243:         my $sname = $previous->{'username'}.':'.$previous->{'domain'};
                    244:         $previousbutton .= '<input type="button" value="'.
                    245:             'Previous Student ('.
                    246:             $previous->{'username'}.'@'.$previous->{'domain'}.')'.
                    247:             '" onclick="document.Statistics.SelectedStudent.value='.
                    248:             "'".$sname."'".';'.
                    249:             'document.Statistics.submit();" />';
                    250:     } else {
                    251:         $previousbutton .= '<input type="button" value="'.
                    252:             'Previous student (none)'.'" />';
                    253:     }
                    254:     #
                    255:     # Build the next student link
                    256:     my $next = &Apache::lonstatistics::next_student();
                    257:     my $nextbutton = '';
                    258:     if (defined($next)) {
                    259:         my $sname = $next->{'username'}.':'.$next->{'domain'};
                    260:         $nextbutton .= '<input type="button" value="'.
                    261:             'Next Student ('.
                    262:             $next->{'username'}.'@'.$next->{'domain'}.')'.
                    263:             '" onclick="document.Statistics.SelectedStudent.value='.
                    264:             "'".$sname."'".';'.
                    265:             'document.Statistics.submit();" />';
                    266:     } else {
                    267:         $nextbutton .= '<input type="button" value="'.
                    268:             'Next student (none)'.'" />';
                    269:     }
                    270:     #
                    271:     # Build the 'all students' button
                    272:     my $all = '';
                    273:     $all .= '<input type="button" value="All Students" '.
                    274:             '" onclick="document.Statistics.SelectedStudent.value='.
                    275:             "''".';'.'document.Statistics.submit();" />';
                    276:     $Str .= $previousbutton.('&nbsp;'x5).$all.('&nbsp;'x5).$nextbutton;
                    277:     return $Str;
                    278: }
                    279: 
                    280: #######################################################
                    281: #######################################################
1.30      matthew   282: 
1.31      matthew   283: sub get_student_fields_to_show {
                    284:     my @to_show = @Apache::lonstatistics::SelectedStudentData;
                    285:     foreach (@to_show) {
                    286:         if ($_ eq 'all') {
                    287:             @to_show = @Apache::lonstatistics::StudentDataOrder;
                    288:             last;
                    289:         }
                    290:     }
                    291:     return @to_show;
                    292: }
                    293: 
1.28      matthew   294: #######################################################
                    295: #######################################################
                    296: 
                    297: =pod
1.2       stredwic  298: 
1.28      matthew   299: =item &CreateInterface()
1.21      minaeibi  300: 
1.28      matthew   301: Called by &BuildStudentAssessmentPage to create the top part of the
                    302: page which displays the chart.
                    303: 
1.30      matthew   304: Inputs: None
1.28      matthew   305: 
                    306: Returns:  A string containing the HTML for the headers and top table for 
                    307: the chart page.
                    308: 
                    309: =cut
                    310: 
                    311: #######################################################
                    312: #######################################################
1.2       stredwic  313: sub CreateInterface {
1.4       stredwic  314:     my $Str = '';
1.95      matthew   315:     $Str .= &Apache::lonhtmlcommon::breadcrumbs(undef,'Chart');
1.30      matthew   316: #    $Str .= &CreateLegend();
                    317:     $Str .= '<table cellspacing="5">'."\n";
                    318:     $Str .= '<tr>';
1.75      matthew   319:     $Str .= '<td align="center"><b>'.&mt('Sections').'</b></td>';
                    320:     $Str .= '<td align="center"><b>'.&mt('Student Data</b>').'</td>';
                    321:     $Str .= '<td align="center"><b>'.&mt('Enrollment Status').'</b></td>';
                    322:     $Str .= '<td align="center"><b>'.&mt('Sequences and Folders').'</b></td>';
                    323:     $Str .= '<td align="center"><b>'.&mt('Output Format').'</b>'.
1.58      matthew   324:         &Apache::loncommon::help_open_topic("Chart_Output_Formats").
                    325:         '</td>';
1.75      matthew   326:     $Str .= '<td align="center"><b>'.&mt('Output Data').'</b>'.
1.58      matthew   327:         &Apache::loncommon::help_open_topic("Chart_Output_Data").
                    328:         '</td>';
1.30      matthew   329:     $Str .= '</tr>'."\n";
                    330:     #
1.4       stredwic  331:     $Str .= '<tr><td align="center">'."\n";
1.29      matthew   332:     $Str .= &Apache::lonstatistics::SectionSelect('Section','multiple',5);
1.4       stredwic  333:     $Str .= '</td><td align="center">';
1.30      matthew   334:     $Str .= &Apache::lonstatistics::StudentDataSelect('StudentData','multiple',
                    335:                                                       5,undef);
1.46      matthew   336:     $Str .= '</td><td>'."\n";
                    337:     $Str .= &Apache::lonhtmlcommon::StatusOptions(undef,undef,5);
1.4       stredwic  338:     $Str .= '</td><td>'."\n";
1.112     matthew   339:     $Str .= &Apache::lonstatistics::map_select('Maps','multiple,all',5);
1.31      matthew   340:     $Str .= '</td><td>'."\n";
                    341:     $Str .= &CreateAndParseOutputSelector();
1.54      matthew   342:     $Str .= '</td><td>'."\n";
                    343:     $Str .= &CreateAndParseOutputDataSelector();
1.30      matthew   344:     $Str .= '</td></tr>'."\n";
                    345:     $Str .= '</table>'."\n";
1.75      matthew   346:     $Str .= '<input type="submit" name="Generate Chart" value="'.
                    347:         &mt('Generate Chart').'" />';
1.59      matthew   348:     $Str .= '&nbsp;'x5;
1.75      matthew   349:     $Str .= '<input type="submit" name="selectstudent" value="'.
                    350:         &mt('Select One Student').'" />';
1.59      matthew   351:     $Str .= '&nbsp;'x5;
1.75      matthew   352:     $Str .= '<input type="submit" name="ClearCache" value="'.
                    353:         &mt('Clear Caches').'" />';
1.61      www       354:     $Str .= '&nbsp;'x5;
1.108     matthew   355:     $Str .= 
1.120     matthew   356:         &mt('Status [_1]',
1.108     matthew   357:             '<input type="text" name="stats_status" size="60" value="" />');
1.61      www       358:     $Str .= '<br />';
1.4       stredwic  359:     return $Str;
1.1       stredwic  360: }
1.30      matthew   361: 
                    362: #######################################################
                    363: #######################################################
                    364: 
                    365: =pod
                    366: 
1.31      matthew   367: =item &CreateAndParseOutputSelector()
1.30      matthew   368: 
                    369: =cut
                    370: 
                    371: #######################################################
                    372: #######################################################
1.32      matthew   373: my @OutputOptions = 
                    374:     ({ name  => 'HTML, with links',
                    375:        value => 'html, with links',
1.33      matthew   376:        description => 'Output HTML with each symbol linked to the problem '.
1.35      matthew   377: 	   'which generated it.',
                    378:        mode => 'html',
                    379:        show_links => 'yes',
                    380:        },
1.47      matthew   381:      { name  => 'HTML, with all links',
                    382:        value => 'html, with all links',
                    383:        description => 'Output HTML with each symbol linked to the problem '.
                    384: 	   'which generated it.  '.
                    385:            'This includes links for unattempted problems.',
                    386:        mode => 'html',
                    387:        show_links => 'all',
                    388:        },
1.32      matthew   389:      { name  => 'HTML, without links',
                    390:        value => 'html, without links',
1.33      matthew   391:        description => 'Output HTML.  By not including links, the size of the'.
                    392: 	   ' web page is greatly reduced.  If your browser crashes on the '.
1.35      matthew   393: 	   'full display, try this.',
                    394:        mode => 'html',
                    395:        show_links => 'no',
                    396:            },
1.54      matthew   397:      { name  => 'Excel',
                    398:        value => 'excel',
                    399:        description => 'Output an Excel file (compatable with Excel 95).',
1.35      matthew   400:        mode => 'excel',
                    401:        show_links => 'no',
1.54      matthew   402:    },
                    403:      { name  => 'CSV',
                    404:        value => 'csv',
1.96      www       405:        description => 'Output a comma separated values file suitable for '.
1.57      matthew   406:            'import into a spreadsheet program.  Using this method as opposed '.
                    407:            'to Excel output allows you to organize your data before importing'.
                    408:            ' it into a spreadsheet program.',
1.35      matthew   409:        mode => 'csv',
                    410:        show_links => 'no',
                    411:            },
1.32      matthew   412:      );
                    413: 
1.33      matthew   414: sub OutputDescriptions {
                    415:     my $Str = '';
1.58      matthew   416:     $Str .= "<h2>Output Formats</h2>\n";
1.33      matthew   417:     $Str .= "<dl>\n";
                    418:     foreach my $outputmode (@OutputOptions) {
                    419: 	$Str .="    <dt>".$outputmode->{'name'}."</dt>\n";
                    420: 	$Str .="        <dd>".$outputmode->{'description'}."</dd>\n";
                    421:     }
                    422:     $Str .= "</dl>\n";
                    423:     return $Str;
                    424: }
                    425: 
1.31      matthew   426: sub CreateAndParseOutputSelector {
                    427:     my $Str = '';
1.44      matthew   428:     my $elementname = 'chartoutputmode';
1.73      matthew   429:     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
                    430:                                             [$elementname]);
1.31      matthew   431:     #
                    432:     # Format for output options is 'mode, restrictions';
1.122     albertel  433:     my $selected = (&Apache::loncommon::get_env_multiple('form.'.$elementname))[0];
                    434:     $selected = 'html, without links' if (!$selected);
                    435: 
1.31      matthew   436:     #
                    437:     # Set package variables describing output mode
                    438:     $show_links  = 'no';
                    439:     $output_mode = 'html';
1.35      matthew   440:     foreach my $option (@OutputOptions) {
                    441:         next if ($option->{'value'} ne $selected);
                    442:         $output_mode = $option->{'mode'};
                    443:         $show_links  = $option->{'show_links'};
1.31      matthew   444:     }
1.35      matthew   445: 
1.31      matthew   446:     #
                    447:     # Build the form element
                    448:     $Str = qq/<select size="5" name="$elementname">/;
1.32      matthew   449:     foreach my $option (@OutputOptions) {
                    450:         $Str .= "\n".'    <option value="'.$option->{'value'}.'"';
                    451:         $Str .= " selected " if ($option->{'value'} eq $selected);
1.75      matthew   452:         $Str .= ">".&mt($option->{'name'})."<\/option>";
1.31      matthew   453:     }
                    454:     $Str .= "\n</select>";
                    455:     return $Str;
                    456: }
1.30      matthew   457: 
1.54      matthew   458: ##
                    459: ## Data selector stuff
                    460: ##
                    461: my @OutputDataOptions =
1.57      matthew   462:     (
1.72      matthew   463:      { name  => 'Scores Summary',
1.57      matthew   464:        base  => 'scores',
                    465:        value => 'sum and total',
1.87      matthew   466:        scores => 1,
                    467:        tries  => 0,
                    468:        every_problem => 0,
                    469:        sequence_sum => 1,
                    470:        sequence_max => 1,
                    471:        grand_total => 1,
1.101     matthew   472:        grand_maximum => 1,
1.89      matthew   473:        summary_table => 1,
1.90      matthew   474:        maximum_row => 1,
1.129   ! bowersj2  475:        ignore_weight => 0,
1.57      matthew   476:        shortdesc => 'Total Score and Maximum Possible for each '.
                    477:            'Sequence or Folder',
                    478:        longdesc => 'The score of each student as well as the '.
                    479:            ' maximum possible on each Sequence or Folder.',
                    480:        },
1.71      matthew   481:      { name  => 'Scores Per Problem',
1.57      matthew   482:        base  => 'scores',
1.71      matthew   483:        value => 'scores',
1.87      matthew   484:        scores => 1,
                    485:        tries  => 0,
                    486:        correct => 0,
                    487:        every_problem => 1,
                    488:        sequence_sum => 1,
                    489:        sequence_max => 1,
                    490:        grand_total => 1,
1.101     matthew   491:        grand_maximum => 1,
1.89      matthew   492:        summary_table => 1,
1.90      matthew   493:        maximum_row => 1,
1.129   ! bowersj2  494:        ignore_weight => 0,
1.71      matthew   495:        shortdesc => 'Score on each Problem Part',
                    496:        longdesc =>'The students score on each problem part, computed as'.
                    497:            'the part weight * part awarded',
1.57      matthew   498:        },
                    499:      { name  =>'Tries',
                    500:        base  =>'tries',
                    501:        value => 'tries',
1.87      matthew   502:        scores => 0,
                    503:        tries  => 1,
                    504:        correct => 0,
                    505:        every_problem => 1,
                    506:        sequence_sum => 0,
                    507:        sequence_max => 0,
                    508:        grand_total => 0,
1.101     matthew   509:        grand_maximum => 0,
1.90      matthew   510:        summary_table => 0,
                    511:        maximum_row => 0,
1.129   ! bowersj2  512:        ignore_weight => 0,
1.57      matthew   513:        shortdesc => 'Number of Tries before success on each Problem Part',
                    514:        longdesc =>'The number of tries before success on each problem part.',
1.109     matthew   515:        non_html_notes => 'negative values indicate an incorrect problem',
1.57      matthew   516:        },
                    517:      { name  =>'Parts Correct',
                    518:        base  =>'tries',
                    519:        value => 'parts correct total',
1.87      matthew   520:        scores => 0,
                    521:        tries  => 0,
                    522:        correct => 1,
                    523:        every_problem => 1,
                    524:        sequence_sum => 1,
                    525:        sequence_max => 1,
                    526:        grand_total => 1,
1.101     matthew   527:        grand_maximum => 1,
1.89      matthew   528:        summary_table => 1,
1.90      matthew   529:        maximum_row => 0,
1.129   ! bowersj2  530:        ignore_weight => 1,
1.57      matthew   531:        shortdesc => 'Number of Problem Parts completed successfully.',
                    532:        longdesc => 'The Number of Problem Parts completed successfully and '.
                    533:            'the maximum possible for each student',
                    534:        },
                    535:      );
                    536: 
                    537: sub HTMLifyOutputDataDescriptions {
                    538:     my $Str = '';
1.58      matthew   539:     $Str .= "<h2>Output Data</h2>\n";
1.57      matthew   540:     $Str .= "<dl>\n";
                    541:     foreach my $option (@OutputDataOptions) {
                    542:         $Str .= '    <dt>'.$option->{'name'}.'</dt>';
                    543:         $Str .= '<dd>'.$option->{'longdesc'}.'</dd>'."\n";
                    544:     }
                    545:     $Str .= "</dl>\n";
                    546:     return $Str;
                    547: }
1.54      matthew   548: 
                    549: sub CreateAndParseOutputDataSelector {
                    550:     my $Str = '';
                    551:     my $elementname = 'chartoutputdata';
                    552:     #
1.122     albertel  553:     my $selected = (&Apache::loncommon::get_env_multiple('form.'.$elementname))[0];
                    554:     $selected = 'scores' if (!$selected);
                    555: 
1.54      matthew   556:     #
1.87      matthew   557:     $chosen_output = $OutputDataOptions[0];
1.54      matthew   558:     foreach my $option (@OutputDataOptions) {
                    559:         if ($option->{'value'} eq $selected) {
1.87      matthew   560:             $chosen_output = $option;
1.54      matthew   561:         }
                    562:     }
                    563:     #
                    564:     # Build the form element
                    565:     $Str = qq/<select size="5" name="$elementname">/;
                    566:     foreach my $option (@OutputDataOptions) {
                    567:         $Str .= "\n".'    <option value="'.$option->{'value'}.'"';
1.87      matthew   568:         $Str .= " selected " if ($option->{'value'} eq $chosen_output->{'value'});
1.75      matthew   569:         $Str .= ">".&mt($option->{'name'})."<\/option>";
1.54      matthew   570:     }
                    571:     $Str .= "\n</select>";
                    572:     return $Str;
                    573: 
                    574: }
                    575: 
1.28      matthew   576: #######################################################
                    577: #######################################################
1.115     matthew   578: sub count_parts {
                    579:     my ($navmap,$sequence) = @_;
                    580:     my @resources = &get_resources($navmap,$sequence);
                    581:     my $count = 0;
                    582:     foreach my $res (@resources) {
                    583:         $count += scalar(@{$res->parts});
                    584:     }
                    585:     return $count;
                    586: }
                    587: 
                    588: sub get_resources {
                    589:     my ($navmap,$sequence) = @_;
                    590:     my @resources = $navmap->retrieveResources($sequence,
                    591:                                                sub { shift->is_problem(); },
                    592:                                                0,0,0);
                    593:     return @resources;
                    594: }
                    595: 
                    596: #######################################################
                    597: #######################################################
1.1       stredwic  598: 
1.28      matthew   599: =pod
                    600: 
1.31      matthew   601: =head2 HTML output routines
1.28      matthew   602: 
1.31      matthew   603: =item &html_initialize($r)
1.28      matthew   604: 
1.31      matthew   605: Create labels for the columns of student data to show.
1.28      matthew   606: 
1.31      matthew   607: =item &html_outputstudent($r,$student)
1.28      matthew   608: 
1.31      matthew   609: Return a line of the chart for a student.
1.28      matthew   610: 
1.31      matthew   611: =item &html_finish($r)
1.28      matthew   612: 
                    613: =cut
                    614: 
                    615: #######################################################
                    616: #######################################################
1.31      matthew   617: {
                    618:     my $padding;
                    619:     my $count;
                    620: 
1.39      matthew   621:     my $nodata_count; # The number of students for which there is no data
                    622:     my %prog_state;   # progress state used by loncommon PrgWin routines
1.102     matthew   623:     my $total_sum_width;
1.39      matthew   624: 
1.112     matthew   625:     my %width; # Holds sequence width information
                    626:     my @sequences;
                    627:     my $navmap; # Have to keep this around since weakref is a bit zealous
                    628: 
1.125     albertel  629: sub html_cleanup {
                    630:     undef(%prog_state);
                    631:     undef(%width);
                    632:     #
                    633:     undef($navmap);
                    634:     undef(@sequences);
                    635: }
                    636: 
1.31      matthew   637: sub html_initialize {
                    638:     my ($r) = @_;
1.30      matthew   639:     #
                    640:     $padding = ' 'x3;
1.35      matthew   641:     $count = 0;
1.39      matthew   642:     $nodata_count = 0;
1.125     albertel  643:     &html_cleanup();
1.115     matthew   644:     ($navmap,@sequences) = 
                    645:         &Apache::lonstatistics::selected_sequences_with_assessments();
                    646:     if (! ref($navmap)) {
                    647:         # Unable to get data, so bail out
                    648:         $r->print("<h3>".
                    649:                   &mt('Unable to retrieve course information.').
                    650:                   '</h3>');
                    651:     }
1.30      matthew   652:     #
1.121     albertel  653:     $r->print("<h3>".$env{'course.'.$env{'request.course.id'}.'.description'}.
1.38      matthew   654:               "&nbsp;&nbsp;".localtime(time)."</h3>");
1.112     matthew   655:     #
1.87      matthew   656:     if ($chosen_output->{'base'} !~ /^final table/) {
                    657:         $r->print("<h3>".$chosen_output->{'shortdesc'}."</h3>");        
1.39      matthew   658:     }
1.31      matthew   659:     my $Str = "<pre>\n";
1.30      matthew   660:     # First, the @StudentData fields need to be listed
1.31      matthew   661:     my @to_show = &get_student_fields_to_show();
1.30      matthew   662:     foreach my $field (@to_show) {
                    663:         my $title=$Apache::lonstatistics::StudentData{$field}->{'title'};
                    664:         my $base =$Apache::lonstatistics::StudentData{$field}->{'base_width'};
                    665:         my $width=$Apache::lonstatistics::StudentData{$field}->{'width'};
                    666:         $Str .= $title.' 'x($width-$base).$padding;
                    667:     }
1.89      matthew   668:     #
                    669:     # Compute the column widths and output the sequence titles
1.102     matthew   670:     my $total_count;
1.112     matthew   671:     #
                    672:     # Compute sequence widths
                    673:     my $starttime = Time::HiRes::time;
                    674:     foreach my $seq (@sequences) {
                    675:         my $symb = $seq->symb;
                    676:         my $title = $seq->compTitle;
                    677:         $width{$symb}->{'width_sum'} = 0;
                    678:         # Compute width of sum
1.89      matthew   679:         if ($chosen_output->{'sequence_sum'}) {
1.99      matthew   680:             if ($chosen_output->{'every_problem'}) {
                    681:                 # Use 1 digit for a space
1.112     matthew   682:                 $width{$symb}->{'width_sum'} += 1;            
1.99      matthew   683:             }
1.118     matthew   684: 	    $total_count += &count_parts($navmap,$seq);
1.89      matthew   685:             # Use 3 digits for the sum
1.112     matthew   686:             $width{$symb}->{'width_sum'} += 3;
1.89      matthew   687:         }
1.112     matthew   688:         # Compute width of maximum
1.89      matthew   689:         if ($chosen_output->{'sequence_max'}) {
1.112     matthew   690:             if ($width{$symb}->{'width_sum'}>0) {
1.89      matthew   691:                 # One digit for the '/'
1.112     matthew   692:                 $width{$symb}->{'width_sum'} +=1;
1.89      matthew   693:             }
                    694:             # Use 3 digits for the total
1.112     matthew   695:             $width{$symb}->{'width_sum'}+=3;
1.89      matthew   696:         }
1.94      matthew   697: 	#
1.89      matthew   698:         if ($chosen_output->{'every_problem'}) {
                    699:             # one problem per digit
1.115     matthew   700:             $width{$symb}->{'width_parts'}= &count_parts($navmap,$seq);
                    701:             $width{$symb}->{'width_problem'} += $width{$symb}->{'width_parts'};
1.89      matthew   702:         } else {
1.112     matthew   703:             $width{$symb}->{'width_problem'} = 0;
1.89      matthew   704:         }
1.112     matthew   705:         $width{$symb}->{'width_total'} = $width{$symb}->{'width_problem'} + 
                    706:                                      $width{$symb}->{'width_sum'};
                    707:         if ($width{$symb}->{'width_total'} < length(&HTML::Entities::decode($title))) {
                    708:             $width{$symb}->{'width_total'} = length(&HTML::Entities::decode($title));
1.89      matthew   709:         }
                    710:         #
                    711:         # Output the sequence titles
1.112     matthew   712:         $Str .= $title.(' 'x($width{$symb}->{'width_total'}-
                    713:                             length($title)
                    714:                             )).$padding;
1.30      matthew   715:     }
1.102     matthew   716:     $total_sum_width = length($total_count)+1;
                    717:     $Str .= "    total</pre>\n";
1.31      matthew   718:     $Str .= "<pre>";
                    719:     $r->print($Str);
                    720:     $r->rflush();
1.123     albertel  721:     #
                    722:     # Let the user know what we are doing
                    723:     my $studentcount = scalar(@Apache::lonstatistics::Students); 
                    724:     if ($env{'form.SelectedStudent'}) {
                    725:         $studentcount = '1';
                    726:     }
                    727:     #
                    728:     # Initialize progress window
                    729:     %prog_state=&Apache::lonhtmlcommon::Create_PrgWin
                    730:         ($r,'HTML Chart Status',
                    731:          'HTML Chart Progress', $studentcount,
                    732:          'inline',undef,'Statistics','stats_status');
                    733:     #
                    734:     &Apache::lonhtmlcommon::Update_PrgWin($r,\%prog_state,
                    735:                                           'Processing first student');
1.31      matthew   736:     return;
1.30      matthew   737: }
                    738: 
1.31      matthew   739: sub html_outputstudent {
                    740:     my ($r,$student) = @_;
1.2       stredwic  741:     my $Str = '';
1.112     matthew   742:     return if (! defined($navmap));
1.35      matthew   743:     #
1.87      matthew   744:     if($count++ % 5 == 0 && $count > 0) {
1.35      matthew   745:         $r->print("</pre><pre>");
                    746:     }
1.30      matthew   747:     # First, the @StudentData fields need to be listed
1.31      matthew   748:     my @to_show = &get_student_fields_to_show();
1.30      matthew   749:     foreach my $field (@to_show) {
                    750:         my $title=$student->{$field};
1.103     matthew   751:         # Deal with 'comments' - how I love special cases
                    752:         if ($field eq 'comments') {
                    753:             $title = '<a href="/adm/'.$student->{'domain'}.'/'.$student->{'username'}.'/'.'aboutme#coursecomment">'.&mt('Comments').'</a>';
                    754:         }
1.31      matthew   755:         my $base = length($title);
1.30      matthew   756:         my $width=$Apache::lonstatistics::StudentData{$field}->{'width'};
                    757:         $Str .= $title.' 'x($width-$base).$padding;
                    758:     }
                    759:     # Get ALL the students data
                    760:     my %StudentsData;
                    761:     my @tmp = &Apache::loncoursedata::get_current_state
                    762:         ($student->{'username'},$student->{'domain'},undef,
1.121     albertel  763:          $env{'request.course.id'});
1.30      matthew   764:     if ((scalar @tmp > 0) && ($tmp[0] !~ /^error:/)) {
                    765:         %StudentsData = @tmp;
                    766:     }
                    767:     if (scalar(@tmp) < 1) {
1.39      matthew   768:         $nodata_count++;
1.30      matthew   769:         $Str .= '<font color="blue">No Course Data</font>'."\n";
1.31      matthew   770:         $r->print($Str);
                    771:         $r->rflush();
                    772:         return;
1.30      matthew   773:     }
                    774:     #
                    775:     # By sequence build up the data
                    776:     my $studentstats;
1.31      matthew   777:     my $PerformanceStr = '';
1.112     matthew   778:     foreach my $seq (@sequences) {
1.118     matthew   779:         my $symb = $seq->symb;
1.54      matthew   780:         my ($performance,$performance_length,$score,$seq_max,$rawdata);
1.87      matthew   781:         if ($chosen_output->{'tries'}) {
1.54      matthew   782:             ($performance,$performance_length,$score,$seq_max,$rawdata) =
1.112     matthew   783:                 &student_tries_on_sequence($student,\%StudentsData,
                    784:                                            $navmap,$seq,$show_links);
1.54      matthew   785:         } else {
                    786:             ($performance,$performance_length,$score,$seq_max,$rawdata) =
1.112     matthew   787:                 &student_performance_on_sequence($student,\%StudentsData,
1.129   ! bowersj2  788:                                                  $navmap,$seq,$show_links,
        !           789:                                                  $chosen_output->{ignore_weight});
1.54      matthew   790:         }
1.89      matthew   791:         my $ratio='';
1.118     matthew   792:         if ($chosen_output->{'every_problem'} && 
                    793:             $chosen_output->{'sequence_sum'}) {
1.99      matthew   794:             $ratio .= ' ';
                    795:         }
1.97      matthew   796:         if ($chosen_output->{'sequence_sum'} && $score ne ' ') {
1.115     matthew   797:             my $score .= sprintf("%3.0f",$score);
                    798:             $ratio .= (' 'x(3-length($score))).$score;
1.98      matthew   799:         } elsif($chosen_output->{'sequence_sum'}) {
1.97      matthew   800:             $ratio .= ' 'x3;
1.89      matthew   801:         }
                    802:         if ($chosen_output->{'sequence_max'}) {
                    803:             if ($chosen_output->{'sequence_sum'}) {
                    804:                 $ratio .= '/';
                    805:             }
1.99      matthew   806:             $ratio .= sprintf("%3.0f",$seq_max);
1.89      matthew   807:         }
1.31      matthew   808:         #
1.89      matthew   809:         if (! $chosen_output->{'every_problem'}) {
                    810:             $performance = '';
1.94      matthew   811: 	    $performance_length=0;
1.30      matthew   812:         }
1.118     matthew   813:         $performance .= ' 'x($width{$symb}->{'width_total'} -
1.112     matthew   814:                              $performance_length -
1.118     matthew   815:                              $width{$symb}->{'width_sum'}).
1.89      matthew   816:             $ratio;
1.31      matthew   817:         #
                    818:         $Str .= $performance.$padding;
                    819:         #
1.118     matthew   820:         $studentstats->{$symb}->{'score'}= $score;
                    821:         $studentstats->{$symb}->{'max'}  = $seq_max;
1.30      matthew   822:     }
                    823:     #
                    824:     # Total it up and store the statistics info.
1.97      matthew   825:     my ($score,$max);
1.30      matthew   826:     while (my ($symb,$seq_stats) = each (%{$studentstats})) {
                    827:         $Statistics->{$symb}->{'score'} += $seq_stats->{'score'};
1.54      matthew   828:         if ($Statistics->{$symb}->{'max'} < $seq_stats->{'max'}) {
                    829:             $Statistics->{$symb}->{'max'} = $seq_stats->{'max'};
                    830:         }
1.97      matthew   831:         if ($seq_stats->{'score'} ne ' ') {
                    832:             $score += $seq_stats->{'score'};
                    833:             $Statistics->{$symb}->{'num_students'}++;
                    834:         }
1.30      matthew   835:         $max   += $seq_stats->{'max'};
                    836:     }
1.97      matthew   837:     if (! defined($score)) {
1.102     matthew   838:         $score = ' ' x $total_sum_width;
1.105     matthew   839:     } else {
                    840:         $score = sprintf("%.0f",$score);
1.115     matthew   841:         $score = (' 'x(3-length($score))).$score;
1.97      matthew   842:     }
1.102     matthew   843:     $Str .= ' '.' 'x($total_sum_width-length($score)).$score.' / '.$max;
1.30      matthew   844:     $Str .= " \n";
1.39      matthew   845:     #
1.31      matthew   846:     $r->print($Str);
                    847:     #
                    848:     $r->rflush();
1.123     albertel  849:     &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,'last student');
1.31      matthew   850:     return;
1.30      matthew   851: }    
1.2       stredwic  852: 
1.31      matthew   853: sub html_finish {
                    854:     my ($r) = @_;
1.112     matthew   855:     return if (! defined($navmap));
1.39      matthew   856:     #
                    857:     # Check for suppressed output and close the progress window if so
1.87      matthew   858:     $r->print("</pre>\n"); 
1.90      matthew   859:     if ($chosen_output->{'summary_table'}) {
                    860:         if ($single_student_mode) {
                    861:             $r->print(&SingleStudentTotal());
                    862:         } else {
                    863:             $r->print(&StudentAverageTotal());
                    864:         }
1.49      matthew   865:     }
1.31      matthew   866:     $r->rflush();
1.123     albertel  867:     &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
1.125     albertel  868:     &html_cleanup();
1.31      matthew   869:     return;
                    870: }
                    871: 
1.39      matthew   872: sub StudentAverageTotal {
1.105     matthew   873:     my $Str = '<h3>'.&mt('Summary Tables').'</h3>'.$/;
1.39      matthew   874:     $Str .= '<table border=2 cellspacing="1">'."\n";
1.105     matthew   875:     $Str .= '<tr>'.
                    876:         '<th>'.&mt('Title').'</th>'.
                    877:         '<th>'.&mt('Average').'</th>'.
                    878:         '<th>'.&mt('Maximum').'</th>'.
                    879:         '</tr>'.$/;
1.112     matthew   880:     foreach my $seq (@sequences) {
                    881:         my $symb = $seq->symb;
1.42      matthew   882:         my $ave;
1.112     matthew   883:         my $num_students = $Statistics->{$symb}->{'num_students'};
1.97      matthew   884:         if ($num_students > 0) {
                    885:             $ave = int(100*
1.112     matthew   886:                        ($Statistics->{$symb}->{'score'}/$num_students)
1.97      matthew   887:                        )/100;
1.42      matthew   888:         } else {
                    889:             $ave = 0;
                    890:         }
1.112     matthew   891:         my $max = $Statistics->{$symb}->{'max'};
1.82      matthew   892:         $ave = sprintf("%.2f",$ave);
1.112     matthew   893:         $Str .= '<tr><td>'.$seq->compTitle.'</td>'.
1.82      matthew   894:             '<td align="right">'.$ave.'&nbsp;</td>'.
                    895:             '<td align="right">'.$max.'&nbsp;'.'</td></tr>'."\n";
1.39      matthew   896:     }
                    897:     $Str .= "</table>\n";
                    898:     return $Str;
                    899: }
                    900: 
1.49      matthew   901: sub SingleStudentTotal {
1.115     matthew   902:     return if (! defined($navmap));
1.49      matthew   903:     my $student = &Apache::lonstatistics::current_student();
1.105     matthew   904:     my $Str = '<h3>'.&mt('Summary table for [_1] ([_2]@[_3])',
                    905:                          $student->{'fullname'},
                    906:                          $student->{'username'},$student->{'domain'}).'</h3>';
                    907:     $Str .= $/;
1.49      matthew   908:     $Str .= '<table border=2 cellspacing="1">'."\n";
                    909:     $Str .= 
1.105     matthew   910:         '<tr>'.
                    911:         '<th>'.&mt('Sequence or Folder').'</th>';
                    912:     if ($chosen_output->{'base'} eq 'tries') {
                    913:         $Str .= '<th>'.&mt('Parts Correct').'</th>';
                    914:     } else {
                    915:         $Str .= '<th>'.&mt('Score').'</th>';
                    916:     }
                    917:     $Str .= '<th>'.&mt('Maximum').'</th>'."</tr>\n";
1.49      matthew   918:     my $total = 0;
                    919:     my $total_max = 0;
1.115     matthew   920:     foreach my $seq (@sequences) {
1.112     matthew   921:         my $value = $Statistics->{$seq->symb}->{'score'};
                    922:         my $max = $Statistics->{$seq->symb}->{'max'};
                    923:         $Str .= '<tr><td>'.&HTML::Entities::encode($seq->compTitle).'</td>'.
1.49      matthew   924:             '<td align="right">'.$value.'</td>'.
                    925:                 '<td align="right">'.$max.'</td></tr>'."\n";
                    926:         $total += $value;
                    927:         $total_max +=$max;
                    928:     }
1.105     matthew   929:     $Str .= '<tr><td><b>'.&mt('Total').'</b></td>'.
1.49      matthew   930:         '<td align="right">'.$total.'</td>'.
                    931:         '<td align="right">'.$total_max."</td></tr>\n";
                    932:     $Str .= "</table>\n";
                    933:     return $Str;
                    934: }
                    935: 
1.31      matthew   936: }
                    937: 
                    938: #######################################################
                    939: #######################################################
                    940: 
                    941: =pod
                    942: 
                    943: =head2 EXCEL subroutines
                    944: 
                    945: =item &excel_initialize($r)
                    946: 
                    947: =item &excel_outputstudent($r,$student)
                    948: 
                    949: =item &excel_finish($r)
                    950: 
                    951: =cut
                    952: 
                    953: #######################################################
                    954: #######################################################
                    955: {
                    956: 
                    957: my $excel_sheet;
1.32      matthew   958: my $excel_workbook;
1.117     matthew   959: my $format;
1.32      matthew   960: 
                    961: my $filename;
                    962: my $rows_output;
                    963: my $cols_output;
                    964: 
1.36      matthew   965: my %prog_state; # progress window state
1.54      matthew   966: my $request_aborted;
1.31      matthew   967: 
1.76      matthew   968: my $total_formula;
1.101     matthew   969: my $maximum_formula;
1.115     matthew   970: my %formula_data;
                    971: 
                    972: my $navmap;
                    973: my @sequences;
1.76      matthew   974: 
1.125     albertel  975: sub excel_cleanup {
1.31      matthew   976:     #
1.66      matthew   977:     undef ($excel_sheet);
                    978:     undef ($excel_workbook);
                    979:     undef ($filename);
                    980:     undef ($rows_output);
                    981:     undef ($cols_output);
                    982:     undef (%prog_state);
                    983:     undef ($request_aborted);
1.76      matthew   984:     undef ($total_formula);
1.101     matthew   985:     undef ($maximum_formula);
1.66      matthew   986:     #
1.115     matthew   987:     undef(%formula_data);
                    988:     #
                    989:     undef($navmap);
                    990:     undef(@sequences);
1.125     albertel  991: }
                    992: 
                    993: sub excel_initialize {
                    994:     my ($r) = @_;
                    995: 
                    996:     &excel_cleanup();
1.115     matthew   997:     ($navmap,@sequences) = 
                    998:         &Apache::lonstatistics::selected_sequences_with_assessments();
                    999:     if (! ref($navmap)) {
                   1000:         # Unable to get data, so bail out
                   1001:         $r->print("<h3>".
                   1002:                   &mt('Unable to retrieve course information.').
                   1003:                   '</h3>');
                   1004:     }
                   1005:     #
1.54      matthew  1006:     my $total_columns = scalar(&get_student_fields_to_show());
1.90      matthew  1007:     my $num_students = scalar(@Apache::lonstatistics::Students);
                   1008:     #
1.115     matthew  1009:     foreach my $seq (@sequences) {
1.88      matthew  1010:         if ($chosen_output->{'every_problem'}) {
1.115     matthew  1011:             $total_columns+=&count_parts($navmap,$seq);
1.88      matthew  1012:         }
1.87      matthew  1013:         # Add 2 because we need a 'sequence_sum' and 'total' column for each
1.88      matthew  1014:         $total_columns += 2;
1.54      matthew  1015:     }
1.105     matthew  1016:     my $too_many_cols_error_message = 
                   1017:         '<h2>'.&mt('Unable to Complete Request').'</h2>'.$/.
                   1018:         '<p>'.&mt('LON-CAPA is unable to produce your Excel spreadsheet because your selections will result in more than 255 columns.  Excel allows only 255 columns in a spreadsheet.').'</p>'.$/.
                   1019:         '<p>'.&mt('You may consider reducing the number of <b>Sequences or Folders</b> you have selected.').'</p>'.$/.
                   1020:         '<p>'.&mt('LON-CAPA can produce <b>CSV</b> files of this data or Excel files of the <b>Scores Summary</b> data.').'</p>'.$/;
1.87      matthew  1021:     if ($chosen_output->{'base'} eq 'tries' && $total_columns > 255) {
1.105     matthew  1022:         $r->print($too_many_cols_error_message);
                   1023:         $request_aborted = 1;
1.54      matthew  1024:     }
1.87      matthew  1025:     if ($chosen_output->{'base'} eq 'scores' && $total_columns > 255) {
1.105     matthew  1026:         $r->print($too_many_cols_error_message);
                   1027:         $request_aborted = 1;
1.54      matthew  1028:     }
                   1029:     return if ($request_aborted);
                   1030:     #
1.32      matthew  1031:     #
                   1032:     $excel_workbook = undef;
                   1033:     $excel_sheet = undef;
                   1034:     #
                   1035:     $rows_output = 0;
                   1036:     $cols_output = 0;
                   1037:     #
1.90      matthew  1038:     # Determine rows 
                   1039:     my $header_row = $rows_output++;
                   1040:     my $description_row = $rows_output++;
1.109     matthew  1041:     my $notes_row = $rows_output++;
1.90      matthew  1042:     $rows_output++;        # blank row
                   1043:     my $summary_header_row;
                   1044:     if ($chosen_output->{'summary_table'}) {
                   1045:         $summary_header_row = $rows_output++;
1.115     matthew  1046:         $rows_output+= scalar(@sequences);
1.90      matthew  1047:         $rows_output++;
                   1048:     }
                   1049:     my $sequence_name_row = $rows_output++;
                   1050:     my $resource_name_row = $rows_output++;
                   1051:     my $maximum_data_row = $rows_output++;
                   1052:     if (! $chosen_output->{'maximum_row'}) {
                   1053:         $rows_output--;
                   1054:     }
                   1055:     my $first_data_row = $rows_output++;
                   1056:     #
1.32      matthew  1057:     # Create sheet
1.117     matthew  1058:     ($excel_workbook,$filename,$format)=
                   1059:         &Apache::loncommon::create_workbook($r);
                   1060:     return if (! defined($excel_workbook));
1.91      matthew  1061:     #
1.32      matthew  1062:     # Add a worksheet
1.121     albertel 1063:     my $sheetname = $env{'course.'.$env{'request.course.id'}.'.description'};
1.67      matthew  1064:     $sheetname = &Apache::loncommon::clean_excel_name($sheetname);
1.33      matthew  1065:     $excel_sheet = $excel_workbook->addworksheet($sheetname);
1.85      matthew  1066:     #
1.34      matthew  1067:     # Put the course description in the header
1.90      matthew  1068:     $excel_sheet->write($header_row,$cols_output++,
1.121     albertel 1069:                    $env{'course.'.$env{'request.course.id'}.'.description'},
1.85      matthew  1070:                         $format->{'h1'});
1.34      matthew  1071:     $cols_output += 3;
                   1072:     #
                   1073:     # Put a description of the sections listed
                   1074:     my $sectionstring = '';
1.119     matthew  1075:     my @Sections = &Apache::lonstatistics::get_selected_sections();
1.120     matthew  1076:     $excel_sheet->write($header_row,$cols_output++,
1.124     matthew  1077:                         &Apache::lonstatistics::section_and_enrollment_description('plaintext'),
1.85      matthew  1078:                         $format->{'h3'});
1.34      matthew  1079:     #
                   1080:     # Put the date in there too
1.90      matthew  1081:     $excel_sheet->write($header_row,$cols_output++,
1.85      matthew  1082:                         'Compiled on '.localtime(time),$format->{'h3'});
1.34      matthew  1083:     #
1.54      matthew  1084:     $cols_output = 0;
1.90      matthew  1085:     $excel_sheet->write($description_row,$cols_output++,
1.87      matthew  1086:                         $chosen_output->{'shortdesc'},
1.109     matthew  1087:                         $format->{'b'});
                   1088:     #
                   1089:     $cols_output = 0;
                   1090:     $excel_sheet->write($notes_row,$cols_output++,
                   1091:                         $chosen_output->{'non_html_notes'},
                   1092:                         $format->{'i'});
                   1093:     
1.90      matthew  1094:     ##############################################
                   1095:     # Output headings for the raw data
                   1096:     ##############################################
1.86      matthew  1097:     #
1.32      matthew  1098:     # Add the student headers
1.34      matthew  1099:     $cols_output = 0;
1.32      matthew  1100:     foreach my $field (&get_student_fields_to_show()) {
1.86      matthew  1101:         $excel_sheet->write($resource_name_row,$cols_output++,$field,
1.85      matthew  1102:                             $format->{'bold'});
1.32      matthew  1103:     }
                   1104:     #
1.54      matthew  1105:     # Add the remaining column headers
1.76      matthew  1106:     my $total_formula_string = '=0';
1.101     matthew  1107:     my $maximum_formula_string = '=0';
1.115     matthew  1108:     foreach my $seq (@sequences) {
                   1109:         my $symb = $seq->symb;
1.86      matthew  1110:         $excel_sheet->write($sequence_name_row,,
1.115     matthew  1111:                             $cols_output,$seq->compTitle,$format->{'bold'});
1.86      matthew  1112:         # Determine starting cell
1.115     matthew  1113:         $formula_data{$symb}->{'Excel:startcell'}=
1.86      matthew  1114:             &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1.90      matthew  1115:             ($first_data_row,$cols_output);
1.115     matthew  1116:         $formula_data{$symb}->{'Excel:startcol'}=$cols_output;
1.87      matthew  1117:         my $count = 0;
                   1118:         if ($chosen_output->{'every_problem'}) {
1.76      matthew  1119:             # Put the names of the problems and parts into the sheet
1.115     matthew  1120:             foreach my $res (&get_resources($navmap,$seq)) {
                   1121:                 if (scalar(@{$res->parts}) > 1) {
                   1122:                     foreach my $part (@{$res->parts}) {
1.86      matthew  1123:                         $excel_sheet->write($resource_name_row,
1.54      matthew  1124:                                             $cols_output++,
1.115     matthew  1125:                                             $res->compTitle.' part '.$res->part_display($part),
1.85      matthew  1126:                                             $format->{'bold'});
1.106     matthew  1127:                         $count++;
1.54      matthew  1128:                     }
                   1129:                 } else {
1.86      matthew  1130:                     $excel_sheet->write($resource_name_row,
1.54      matthew  1131:                                         $cols_output++,
1.115     matthew  1132:                                         $res->compTitle,$format->{'bold'});
1.106     matthew  1133:                     $count++;
1.54      matthew  1134:                 }
                   1135:             }
1.79      matthew  1136:         }
1.87      matthew  1137:         # Determine ending cell
                   1138:         if ($count <= 1) {
1.115     matthew  1139:             $formula_data{$symb}->{'Excel:endcell'} = $formula_data{$symb}->{'Excel:startcell'};
                   1140:             $formula_data{$symb}->{'Excel:endcol'}  = $formula_data{$symb}->{'Excel:startcol'};
1.87      matthew  1141:         } else {
1.115     matthew  1142:             $formula_data{$symb}->{'Excel:endcell'} = 
1.87      matthew  1143:                 &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1.90      matthew  1144:                 ($first_data_row,$cols_output-1);
1.115     matthew  1145:             $formula_data{$symb}->{'Excel:endcol'} = $cols_output-1;
1.87      matthew  1146:         }
                   1147:         # Create the formula for summing up this sequence
1.115     matthew  1148:         if (! exists($formula_data{$symb}->{'Excel:endcell'}) ||
                   1149:             ! defined($formula_data{$symb}->{'Excel:endcell'})) {
                   1150:             $formula_data{$symb}->{'Excel:endcell'} = $formula_data{$symb}->{'Excel:startcell'};
                   1151:         }
1.128     bowersj2 1152: 
1.127     bowersj2 1153:         my $start = $formula_data{$symb}->{'Excel:startcell'};
                   1154:         my $end = $formula_data{$symb}->{'Excel:endcell'};
1.115     matthew  1155:         $formula_data{$symb}->{'Excel:sum'}= $excel_sheet->store_formula
1.127     bowersj2 1156:             ("=IF(COUNT($start\:$end),SUM($start\:$end),\"\")");
1.79      matthew  1157:         # Determine cell the score is held in
1.115     matthew  1158:         $formula_data{$symb}->{'Excel:scorecell'} = 
1.79      matthew  1159:             &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1.90      matthew  1160:             ($first_data_row,$cols_output);
1.115     matthew  1161:         $formula_data{$symb}->{'Excel:scorecol'}=$cols_output;
1.87      matthew  1162:         if ($chosen_output->{'base'} eq 'parts correct total') {
1.86      matthew  1163:             $excel_sheet->write($resource_name_row,$cols_output++,
                   1164:                                 'parts correct',
1.85      matthew  1165:                                 $format->{'bold'});
1.87      matthew  1166:         } elsif ($chosen_output->{'sequence_sum'}) {
                   1167:             if ($chosen_output->{'correct'}) {
                   1168:                 # Only reporting the number correct, so do not call it score
                   1169:                 $excel_sheet->write($resource_name_row,$cols_output++,
                   1170:                                     'sum',
                   1171:                                     $format->{'bold'});
                   1172:             } else {
                   1173:                 $excel_sheet->write($resource_name_row,$cols_output++,
                   1174:                                     'score',
                   1175:                                     $format->{'bold'});
                   1176:             }
1.32      matthew  1177:         }
1.79      matthew  1178:         #
                   1179:         $total_formula_string.='+'.
                   1180:             &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1.90      matthew  1181:             ($first_data_row,$cols_output-1);
1.87      matthew  1182:         if ($chosen_output->{'sequence_max'}) {
1.101     matthew  1183:             $excel_sheet->write($resource_name_row,$cols_output,
1.87      matthew  1184:                                 'maximum',
                   1185:                                 $format->{'bold'});
1.115     matthew  1186:             $formula_data{$symb}->{'Excel:maxcell'} = 
1.101     matthew  1187:                 &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
                   1188:                 ($first_data_row,$cols_output);
1.115     matthew  1189:             $formula_data{$symb}->{'Excel:maxcol'}=$cols_output;
1.101     matthew  1190:             $maximum_formula_string.='+'.
                   1191:                 &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
                   1192:                 ($first_data_row,$cols_output);
                   1193:             $cols_output++;
                   1194: 
1.87      matthew  1195:         }
                   1196:     }
                   1197:     if ($chosen_output->{'grand_total'}) {
                   1198:         $excel_sheet->write($resource_name_row,$cols_output++,'Total',
1.85      matthew  1199:                             $format->{'bold'});
1.32      matthew  1200:     }
1.101     matthew  1201:     if ($chosen_output->{'grand_maximum'}) {
                   1202:         $excel_sheet->write($resource_name_row,$cols_output++,'Max. Total',
                   1203:                             $format->{'bold'});
                   1204:     }
1.76      matthew  1205:     $total_formula = $excel_sheet->store_formula($total_formula_string);
1.101     matthew  1206:     $maximum_formula = $excel_sheet->store_formula($maximum_formula_string);
1.90      matthew  1207:     ##############################################
1.87      matthew  1208:     # Output a row for MAX, if appropriate
1.90      matthew  1209:     ##############################################
                   1210:     if ($chosen_output->{'maximum_row'}) {
1.87      matthew  1211:         $cols_output = 0;
                   1212:         foreach my $field (&get_student_fields_to_show()) {
                   1213:             if ($field eq 'username' || $field eq 'fullname' || 
                   1214:                 $field eq 'id') {
                   1215:                 $excel_sheet->write($maximum_data_row,$cols_output++,'Maximum',
                   1216:                                     $format->{'bold'});
                   1217:             } else {
                   1218:                 $excel_sheet->write($maximum_data_row,$cols_output++,'');
                   1219:             }
1.54      matthew  1220:         }
1.87      matthew  1221:         #
                   1222:         # Add the maximums for each sequence or assessment
                   1223:         my %total_cell_translation;
1.101     matthew  1224:         my %maximum_cell_translation;
1.115     matthew  1225:         foreach my $seq (@sequences) {
                   1226:             my $symb = $seq->symb;
                   1227:             $cols_output=$formula_data{$symb}->{'Excel:startcol'};
                   1228:             $total_cell_translation{$formula_data{$symb}->{'Excel:scorecell'}}=
1.87      matthew  1229:                 &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1.115     matthew  1230:                 ($maximum_data_row,$formula_data{$symb}->{'Excel:scorecol'});
                   1231:             $maximum_cell_translation{$formula_data{$symb}->{'Excel:maxcell'}}=
1.101     matthew  1232:                 &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1.115     matthew  1233:                 ($maximum_data_row,$formula_data{$symb}->{'Excel:maxcol'});
1.87      matthew  1234:             my $weight;
                   1235:             my $max = 0;
1.115     matthew  1236:             foreach my $resource (&get_resources($navmap,$seq)) {
                   1237:                 foreach my $part (@{$resource->parts}){
1.87      matthew  1238:                     $weight = 1;
                   1239:                     if ($chosen_output->{'scores'}) {
                   1240:                         $weight = &Apache::lonnet::EXT
1.128     bowersj2 1241:                             ('resource.'.$part.'.weight',$resource->symb,
1.87      matthew  1242:                              undef,undef,undef);
                   1243:                         if (!defined($weight) || ($weight eq '')) { 
                   1244:                             $weight=1;
                   1245:                         }
                   1246:                     }
                   1247:                     if ($chosen_output->{'scores'} &&
                   1248:                         $chosen_output->{'every_problem'}) {
                   1249:                         $excel_sheet->write($maximum_data_row,$cols_output++,
                   1250:                                             $weight);
1.54      matthew  1251:                     }
1.87      matthew  1252:                     $max += $weight;
1.54      matthew  1253:                 }
1.87      matthew  1254:             } 
                   1255:             #
                   1256:             if ($chosen_output->{'sequence_sum'} && 
                   1257:                 $chosen_output->{'every_problem'}) {
1.110     albertel 1258: 		my %replaceCells=
1.115     matthew  1259: 		    ('^'.$formula_data{$symb}->{'Excel:startcell'}.':'.
                   1260: 		         $formula_data{$symb}->{'Excel:endcell'}.'$' =>
                   1261: 		     &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell($maximum_data_row,$formula_data{$symb}->{'Excel:startcol'}).':'.
                   1262: 		     &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell($maximum_data_row,$formula_data{$symb}->{'Excel:endcol'}));
1.87      matthew  1263:                 $excel_sheet->repeat_formula($maximum_data_row,$cols_output++,
1.115     matthew  1264:                                              $formula_data{$symb}->{'Excel:sum'},undef,
1.127     bowersj2 1265: 					     %replaceCells, %replaceCells);
1.110     albertel 1266: 			
1.87      matthew  1267:             } elsif ($chosen_output->{'sequence_sum'}) {
                   1268:                 $excel_sheet->write($maximum_data_row,$cols_output++,$max);
                   1269:             }
                   1270:             if ($chosen_output->{'sequence_max'}) {
                   1271:                 $excel_sheet->write($maximum_data_row,$cols_output++,$max);
1.45      matthew  1272:             }
1.87      matthew  1273:             #
1.45      matthew  1274:         }
1.87      matthew  1275:         if ($chosen_output->{'grand_total'}) {
1.86      matthew  1276:             $excel_sheet->repeat_formula($maximum_data_row,$cols_output++,
1.87      matthew  1277:                                          $total_formula,undef,
                   1278:                                          %total_cell_translation);
1.79      matthew  1279:         }
1.101     matthew  1280:         if ($chosen_output->{'grand_maximum'}) {
                   1281:             $excel_sheet->repeat_formula($maximum_data_row,$cols_output++,
                   1282:                                          $maximum_formula,undef,
1.107     matthew  1283:                                          %maximum_cell_translation);
1.101     matthew  1284:         }
1.90      matthew  1285:     } # End of MAXIMUM row output  if ($chosen_output->{'maximum_row'}) {
1.86      matthew  1286:     $rows_output = $first_data_row;
1.90      matthew  1287:     ##############################################
                   1288:     # Output summary table, which actually is above the sequence name row.
                   1289:     ##############################################
                   1290:     if ($chosen_output->{'summary_table'}) {
                   1291:         $cols_output = 0;
                   1292:         $excel_sheet->write($summary_header_row,$cols_output++,
                   1293:                             'Summary Table',$format->{'bold'});
                   1294:         if ($chosen_output->{'maximum_row'}) {
                   1295:             $excel_sheet->write($summary_header_row,$cols_output++,
                   1296:                                 'Maximum',$format->{'bold'});
                   1297:         }
                   1298:         $excel_sheet->write($summary_header_row,$cols_output++,
                   1299:                             'Average',$format->{'bold'});
                   1300:         $excel_sheet->write($summary_header_row,$cols_output++,
                   1301:                             'Median',$format->{'bold'});
                   1302:         $excel_sheet->write($summary_header_row,$cols_output++,
                   1303:                             'Std Dev',$format->{'bold'});
                   1304:         my $row = $summary_header_row+1;
1.115     matthew  1305:         foreach my $seq (@sequences) {
                   1306:             my $symb = $seq->symb;
1.90      matthew  1307:             $cols_output = 0;
                   1308:             $excel_sheet->write($row,$cols_output++,
1.115     matthew  1309:                                 $seq->compTitle,
1.90      matthew  1310:                                 $format->{'bold'});
                   1311:             if ($chosen_output->{'maximum_row'}) {
                   1312:                 $excel_sheet->write
                   1313:                     ($row,$cols_output++,
                   1314:                      '='.
                   1315:                      &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1.115     matthew  1316:                      ($maximum_data_row,$formula_data{$symb}->{'Excel:scorecol'})
1.90      matthew  1317:                      );
                   1318:             }
                   1319:             my $range = 
                   1320:                 &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1.115     matthew  1321:                 ($first_data_row,$formula_data{$symb}->{'Excel:scorecol'}).
1.90      matthew  1322:                 ':'.
                   1323:                 &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1.115     matthew  1324:                 ($first_data_row+$num_students-1,$formula_data{$symb}->{'Excel:scorecol'});
1.90      matthew  1325:             $excel_sheet->write($row,$cols_output++,
                   1326:                                 '=AVERAGE('.$range.')');
                   1327:             $excel_sheet->write($row,$cols_output++,
                   1328:                                 '=MEDIAN('.$range.')');
                   1329:             $excel_sheet->write($row,$cols_output++,
                   1330:                                 '=STDEV('.$range.')');
                   1331:             $row++;
                   1332:         }
                   1333:     }
                   1334:     ##############################################
                   1335:     #   Take care of non-excel initialization
                   1336:     ##############################################
1.32      matthew  1337:     #
                   1338:     # Let the user know what we are doing
                   1339:     my $studentcount = scalar(@Apache::lonstatistics::Students); 
1.121     albertel 1340:     if ($env{'form.SelectedStudent'}) {
1.85      matthew  1341:         $studentcount = '1';
                   1342:     }
                   1343:     if ($studentcount > 1) {
                   1344:         $r->print('<h1>'.&mt('Compiling Excel spreadsheet for [_1] students',
                   1345:                              $studentcount)."</h1>\n");
                   1346:     } else {
                   1347:         $r->print('<h1>'.
                   1348:                   &mt('Compiling Excel spreadsheet for 1 student').
                   1349:                   "</h1>\n");
                   1350:     }
1.32      matthew  1351:     $r->rflush();
1.31      matthew  1352:     #
1.36      matthew  1353:     # Initialize progress window
                   1354:     %prog_state=&Apache::lonhtmlcommon::Create_PrgWin
                   1355:         ($r,'Excel File Compilation Status',
1.108     matthew  1356:          'Excel File Compilation Progress', $studentcount,
                   1357:          'inline',undef,'Statistics','stats_status');
1.36      matthew  1358:     #
1.62      matthew  1359:     &Apache::lonhtmlcommon::Update_PrgWin($r,\%prog_state,
                   1360:                                           'Processing first student');
1.31      matthew  1361:     return;
                   1362: }
                   1363: 
                   1364: sub excel_outputstudent {
                   1365:     my ($r,$student) = @_;
1.115     matthew  1366:     if ($request_aborted || ! defined($navmap) || ! defined($excel_sheet)) {
                   1367:         return;
                   1368:     }
1.32      matthew  1369:     $cols_output=0;
                   1370:     #
                   1371:     # Write out student data
                   1372:     my @to_show = &get_student_fields_to_show();
                   1373:     foreach my $field (@to_show) {
1.103     matthew  1374:         my $value = $student->{$field};
                   1375:         if ($field eq 'comments') {
                   1376:             $value = &Apache::lonmsg::retrieve_instructor_comments
                   1377:                 ($student->{'username'},$student->{'domain'});
                   1378:         }
                   1379:         $excel_sheet->write($rows_output,$cols_output++,$value);
1.32      matthew  1380:     }
                   1381:     #
                   1382:     # Get student assessment data
                   1383:     my %StudentsData;
                   1384:     my @tmp = &Apache::loncoursedata::get_current_state($student->{'username'},
                   1385:                                                         $student->{'domain'},
                   1386:                                                         undef,
1.121     albertel 1387:                                                    $env{'request.course.id'});
1.32      matthew  1388:     if ((scalar @tmp > 0) && ($tmp[0] !~ /^error:/)) {
                   1389:         %StudentsData = @tmp;
                   1390:     }
                   1391:     #
                   1392:     # Write out sequence scores and totals data
1.76      matthew  1393:     my %total_cell_translation;
1.101     matthew  1394:     my %maximum_cell_translation;
1.115     matthew  1395:     foreach my $seq (@sequences) {
                   1396:         my $symb = $seq->symb;
                   1397:         $cols_output = $formula_data{$symb}->{'Excel:startcol'};
1.76      matthew  1398:         # Keep track of cells to translate in total cell
1.115     matthew  1399:         $total_cell_translation{$formula_data{$symb}->{'Excel:scorecell'}} = 
1.76      matthew  1400:             &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1.115     matthew  1401:                         ($rows_output,$formula_data{$symb}->{'Excel:scorecol'});
1.107     matthew  1402:         # and maximum cell
1.115     matthew  1403:         $maximum_cell_translation{$formula_data{$symb}->{'Excel:maxcell'}} = 
1.107     matthew  1404:             &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1.115     matthew  1405:             ($rows_output,$formula_data{$symb}->{'Excel:maxcol'});
1.76      matthew  1406:         #
1.54      matthew  1407:         my ($performance,$performance_length,$score,$seq_max,$rawdata);
1.87      matthew  1408:         if ($chosen_output->{'tries'} || $chosen_output->{'correct'}){
1.54      matthew  1409:             ($performance,$performance_length,$score,$seq_max,$rawdata) =
1.115     matthew  1410:                 &student_tries_on_sequence($student,\%StudentsData,
                   1411:                                            $navmap,$seq,'no');
1.54      matthew  1412:         } else {
                   1413:             ($performance,$performance_length,$score,$seq_max,$rawdata) =
1.115     matthew  1414:                 &student_performance_on_sequence($student,\%StudentsData,
1.129   ! bowersj2 1415:                                                  $navmap,$seq,'no',
        !          1416:                                                  $chosen_output->{ignore_weight});
1.87      matthew  1417:         } 
                   1418:         if ($chosen_output->{'every_problem'}) {
                   1419:             if ($chosen_output->{'correct'}) {
                   1420:                 # only indiciate if each item is correct or not
                   1421:                 foreach my $value (@$rawdata) {
1.126     bowersj2 1422:                     # positive means correct, 0 or negative means
                   1423:                     # incorrect
                   1424:                     $value = $value > 0 ? 1 : 0;
1.87      matthew  1425:                     $excel_sheet->write($rows_output,$cols_output++,$value);
                   1426:                 }
                   1427:             } else {
                   1428:                 foreach my $value (@$rawdata) {
1.97      matthew  1429:                     if ($score eq ' ' || !defined($value)) {
                   1430:                         $cols_output++;
                   1431:                     } else {                        
                   1432:                         $excel_sheet->write($rows_output,$cols_output++,
                   1433:                                             $value);
                   1434:                     }
1.87      matthew  1435:                 }
                   1436:             }
1.54      matthew  1437:         }
1.87      matthew  1438:         if ($chosen_output->{'sequence_sum'} && 
                   1439:             $chosen_output->{'every_problem'}) {
1.76      matthew  1440:             # Write a formula for the sum of this sequence
1.110     albertel 1441:             my %replaceCells=
1.115     matthew  1442: 		('^'.$formula_data{$symb}->{'Excel:startcell'}.':'.$formula_data{$symb}->{'Excel:endcell'}.'$'
1.110     albertel 1443: 		 => 
1.115     matthew  1444: 		 &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell($rows_output,$formula_data{$symb}->{'Excel:startcol'}).':'.
                   1445: 		 &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell($rows_output,$formula_data{$symb}->{'Excel:endcol'})
1.110     albertel 1446: 		 );
                   1447:             # The undef is for the format	    
                   1448: 	    $excel_sheet->repeat_formula($rows_output,$cols_output++,
1.115     matthew  1449: 					 $formula_data{$symb}->{'Excel:sum'},undef,
1.127     bowersj2 1450: 					 %replaceCells, %replaceCells);
1.87      matthew  1451:         } elsif ($chosen_output->{'sequence_sum'}) {
1.97      matthew  1452:             if ($score eq ' ') {
                   1453:                 $cols_output++;
                   1454:             } else {
                   1455:                 $excel_sheet->write($rows_output,$cols_output++,$score);
                   1456:             }
1.32      matthew  1457:         }
1.87      matthew  1458:         if ($chosen_output->{'sequence_max'}) {
1.32      matthew  1459:             $excel_sheet->write($rows_output,$cols_output++,$seq_max);
                   1460:         }
                   1461:     }
1.76      matthew  1462:     #
1.87      matthew  1463:     if ($chosen_output->{'grand_total'}) {
                   1464:         $excel_sheet->repeat_formula($rows_output,$cols_output++,
                   1465:                                      $total_formula,undef,
                   1466:                                      %total_cell_translation);
                   1467:     }
1.101     matthew  1468:     if ($chosen_output->{'grand_maximum'}) {
                   1469:         $excel_sheet->repeat_formula($rows_output,$cols_output++,
                   1470:                                      $maximum_formula,undef,
1.107     matthew  1471:                                      %maximum_cell_translation);
1.101     matthew  1472:     }
1.32      matthew  1473:     #
                   1474:     # Bookkeeping
                   1475:     $rows_output++; 
                   1476:     $cols_output=0;
                   1477:     #
1.36      matthew  1478:     # Update the progress window
                   1479:     &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,'last student');
1.32      matthew  1480:     return;
1.31      matthew  1481: }
                   1482: 
                   1483: sub excel_finish {
                   1484:     my ($r) = @_;
1.115     matthew  1485:     if ($request_aborted || ! defined($navmap) || ! defined($excel_sheet)) {
1.125     albertel 1486: 	&excel_cleanup();
1.115     matthew  1487:         return;
                   1488:     }
1.32      matthew  1489:     #
                   1490:     # Write the excel file
                   1491:     $excel_workbook->close();
                   1492:     #
1.36      matthew  1493:     # Close the progress window
                   1494:     &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
                   1495:     #
1.32      matthew  1496:     # Tell the user where to get their excel file
1.36      matthew  1497:     $r->print('<br />'.
1.32      matthew  1498:               '<a href="'.$filename.'">Your Excel spreadsheet.</a>'."\n");
                   1499:     $r->rflush();
1.125     albertel 1500:     &excel_cleanup();
1.32      matthew  1501:     return;
1.31      matthew  1502: }
                   1503: 
                   1504: }
1.30      matthew  1505: #######################################################
                   1506: #######################################################
                   1507: 
                   1508: =pod
                   1509: 
1.31      matthew  1510: =head2 CSV output routines
                   1511: 
                   1512: =item &csv_initialize($r)
                   1513: 
                   1514: =item &csv_outputstudent($r,$student)
                   1515: 
                   1516: =item &csv_finish($r)
1.30      matthew  1517: 
                   1518: =cut
                   1519: 
                   1520: #######################################################
                   1521: #######################################################
1.31      matthew  1522: {
                   1523: 
1.37      matthew  1524: my $outputfile;
                   1525: my $filename;
1.54      matthew  1526: my $request_aborted;
1.37      matthew  1527: my %prog_state; # progress window state
1.115     matthew  1528: my $navmap;
                   1529: my @sequences;
1.37      matthew  1530: 
1.125     albertel 1531: sub csv_cleanup {
1.66      matthew  1532:     undef($outputfile);
                   1533:     undef($filename);
                   1534:     undef($request_aborted);
1.37      matthew  1535:     undef(%prog_state);
                   1536:     #
1.115     matthew  1537:     undef($navmap);
                   1538:     undef(@sequences);
1.125     albertel 1539: }
                   1540: 
                   1541: sub csv_initialize{
                   1542:     my ($r) = @_;
                   1543: 
                   1544:     &csv_cleanup();
1.115     matthew  1545:     ($navmap,@sequences) = 
                   1546:         &Apache::lonstatistics::selected_sequences_with_assessments();
                   1547:     if (! ref($navmap)) {
                   1548:         # Unable to get data, so bail out
                   1549:         $r->print("<h3>".
                   1550:                   &mt('Unable to retrieve course information.').
                   1551:                   '</h3>');
                   1552:     }
                   1553:     #
1.54      matthew  1554:     # Deal with unimplemented requests
                   1555:     $request_aborted = undef;
1.87      matthew  1556:     if ($chosen_output->{'base'} =~ /final table/) {
1.54      matthew  1557:         $r->print(<<END);
                   1558: <h2>Unable to Complete Request</h2>
                   1559: <p>
                   1560: The <b>Summary Table (Scores)</b> option is not available for non-HTML output.
                   1561: </p>
                   1562: END
                   1563:        $request_aborted = 1;
                   1564:     }
                   1565:     return if ($request_aborted);
1.87      matthew  1566:     #
                   1567:     # Initialize progress window
                   1568:     my $studentcount = scalar(@Apache::lonstatistics::Students);
                   1569:     %prog_state=&Apache::lonhtmlcommon::Create_PrgWin
                   1570:         ($r,'CSV File Compilation Status',
1.108     matthew  1571:          'CSV File Compilation Progress', $studentcount,
                   1572:          'inline',undef,'Statistics','stats_status');
1.54      matthew  1573:     #
1.37      matthew  1574:     # Open a file
1.120     matthew  1575:     ($outputfile,$filename) = &Apache::loncommon::create_text_file($r,'csv');
                   1576:     if (! defined($outputfile)) { return ''; }
1.38      matthew  1577:     #
                   1578:     # Datestamp
1.121     albertel 1579:     my $description = $env{'course.'.$env{'request.course.id'}.'.description'};
1.38      matthew  1580:     print $outputfile '"'.&Apache::loncommon::csv_translate($description).'",'.
                   1581:         '"'.&Apache::loncommon::csv_translate(scalar(localtime(time))).'"'.
                   1582:             "\n";
1.120     matthew  1583:     print $outputfile '"'.
                   1584:         &Apache::loncommon::csv_translate
                   1585:         (&Apache::lonstatistics::section_and_enrollment_description()).
                   1586:         '"'."\n";
1.109     matthew  1587:     foreach my $item ('shortdesc','non_html_notes') {
                   1588:         next if (! exists($chosen_output->{$item}));
                   1589:         print $outputfile 
                   1590:             '"'.&Apache::loncommon::csv_translate($chosen_output->{$item}).'"'.
                   1591:             "\n";
                   1592:     }
1.37      matthew  1593:     #
                   1594:     # Print out the headings
1.87      matthew  1595:     my $sequence_row = '';
                   1596:     my $resource_row = undef;
1.37      matthew  1597:     foreach my $field (&get_student_fields_to_show()) {
1.87      matthew  1598:         $sequence_row .='"",';
                   1599:         $resource_row .= '"'.&Apache::loncommon::csv_translate($field).'",';
1.37      matthew  1600:     }
1.115     matthew  1601:     foreach my $seq (@sequences) {
1.87      matthew  1602:         $sequence_row .= '"'.
1.115     matthew  1603:             &Apache::loncommon::csv_translate($seq->compTitle).'",';
1.87      matthew  1604:         my $count = 0;
                   1605:         if ($chosen_output->{'every_problem'}) {
1.116     matthew  1606:             foreach my $res (&get_resources($navmap,$seq)) {
1.115     matthew  1607:                 if (scalar(@{$res->parts}) < 1) {
1.87      matthew  1608:                     next;
                   1609:                 }
1.115     matthew  1610:                 foreach my $part (@{$res->parts}) {
1.87      matthew  1611:                     $resource_row .= '"'.
1.115     matthew  1612:                         &Apache::loncommon::csv_translate
                   1613:                         ($res->compTitle.', Part '.$res->part_display($part)).'",';
1.87      matthew  1614:                     $count++;
1.53      matthew  1615:                 }
                   1616:             }
1.37      matthew  1617:         }
1.87      matthew  1618:         $sequence_row.='"",'x$count;
                   1619:         if ($chosen_output->{'sequence_sum'}) {
                   1620:             if($chosen_output->{'correct'}) {
                   1621:                 $resource_row .= '"sum",';
                   1622:             } else {
                   1623:                 $resource_row .= '"score",';
                   1624:             }
                   1625:         }
                   1626:         if ($chosen_output->{'sequence_max'}) {
                   1627:             $sequence_row.= '"",';
                   1628:             $resource_row .= '"maximum possible",';
                   1629:         }
1.37      matthew  1630:     }
1.87      matthew  1631:     if ($chosen_output->{'grand_total'}) {
                   1632:         $sequence_row.= '"",';
                   1633:         $resource_row.= '"Total",';
                   1634:     } 
1.101     matthew  1635:     if ($chosen_output->{'grand_maximum'}) {
                   1636:         $sequence_row.= '"",';
                   1637:         $resource_row.= '"Maximum",';
                   1638:     } 
1.87      matthew  1639:     chomp($sequence_row);
                   1640:     chomp($resource_row);
                   1641:     print $outputfile $sequence_row."\n";
                   1642:     print $outputfile $resource_row."\n";
1.31      matthew  1643:     return;
                   1644: }
                   1645: 
                   1646: sub csv_outputstudent {
                   1647:     my ($r,$student) = @_;
1.115     matthew  1648:     if ($request_aborted || ! defined($navmap) || ! defined($outputfile)) {
                   1649:         return;
                   1650:     }
1.37      matthew  1651:     my $Str = '';
                   1652:     #
                   1653:     # Output student fields
                   1654:     my @to_show = &get_student_fields_to_show();
                   1655:     foreach my $field (@to_show) {
1.103     matthew  1656:         my $value = $student->{$field};
                   1657:         if ($field eq 'comments') {
                   1658:             $value = &Apache::lonmsg::retrieve_instructor_comments
                   1659:                 ($student->{'username'},$student->{'domain'});
                   1660:         }        
                   1661:         $Str .= '"'.&Apache::loncommon::csv_translate($value).'",';
1.37      matthew  1662:     }
                   1663:     #
                   1664:     # Get student assessment data
                   1665:     my %StudentsData;
                   1666:     my @tmp = &Apache::loncoursedata::get_current_state($student->{'username'},
                   1667:                                                         $student->{'domain'},
                   1668:                                                         undef,
1.121     albertel 1669:                                                    $env{'request.course.id'});
1.37      matthew  1670:     if ((scalar @tmp > 0) && ($tmp[0] !~ /^error:/)) {
                   1671:         %StudentsData = @tmp;
                   1672:     }
                   1673:     #
                   1674:     # Output performance data
1.87      matthew  1675:     my $total = 0;
1.101     matthew  1676:     my $maximum = 0;
1.115     matthew  1677:     foreach my $seq (@sequences) {
1.54      matthew  1678:         my ($performance,$performance_length,$score,$seq_max,$rawdata);
1.87      matthew  1679:         if ($chosen_output->{'tries'}){
1.54      matthew  1680:             ($performance,$performance_length,$score,$seq_max,$rawdata) =
1.115     matthew  1681:                 &student_tries_on_sequence($student,\%StudentsData,
                   1682:                                            $navmap,$seq,'no');
1.54      matthew  1683:         } else {
                   1684:             ($performance,$performance_length,$score,$seq_max,$rawdata) =
1.115     matthew  1685:                 &student_performance_on_sequence($student,\%StudentsData,
1.129   ! bowersj2 1686:                                                  $navmap,$seq,'no',
        !          1687:                                                  $chosen_output->{ignore_weight});
1.54      matthew  1688:         }
1.87      matthew  1689:         if ($chosen_output->{'every_problem'}) {
                   1690:             if ($chosen_output->{'correct'}) {
                   1691:                 $score = 0;
                   1692:                 # Deal with number of parts correct data
                   1693:                 $Str .= '"'.join('","',( map { if ($_>0) { 
                   1694:                                                    $score += 1;
                   1695:                                                    1; 
                   1696:                                                } else { 
                   1697:                                                    0; 
                   1698:                                                }
                   1699:                                              } @$rawdata)).'",';
                   1700:             } else {
                   1701:                 $Str .= '"'.join('","',(@$rawdata)).'",';
                   1702:             }
                   1703:         }
                   1704:         if ($chosen_output->{'sequence_sum'}) {
1.37      matthew  1705:             $Str .= '"'.$score.'",';
1.87      matthew  1706:         } 
                   1707:         if ($chosen_output->{'sequence_max'}) {
                   1708:             $Str .= '"'.$seq_max.'",';
1.37      matthew  1709:         }
1.87      matthew  1710:         $total+=$score;
1.101     matthew  1711:         $maximum += $seq_max;
1.87      matthew  1712:     }
                   1713:     if ($chosen_output->{'grand_total'}) {
                   1714:         $Str .= '"'.$total.'",';
1.101     matthew  1715:     }
                   1716:     if ($chosen_output->{'grand_maximum'}) {
                   1717:         $Str .= '"'.$maximum.'",';
1.37      matthew  1718:     }
                   1719:     chop($Str);
                   1720:     $Str .= "\n";
                   1721:     print $outputfile $Str;
                   1722:     #
                   1723:     # Update the progress window
                   1724:     &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,'last student');
                   1725:     return;
1.31      matthew  1726: }
                   1727: 
                   1728: sub csv_finish {
                   1729:     my ($r) = @_;
1.115     matthew  1730:     if ($request_aborted || ! defined($navmap) || ! defined($outputfile)) {
1.125     albertel 1731: 	&csv_cleanup();
1.115     matthew  1732:         return;
                   1733:     }
1.37      matthew  1734:     close($outputfile);
                   1735:     #
                   1736:     # Close the progress window
                   1737:     &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
                   1738:     #
                   1739:     # Tell the user where to get their csv file
                   1740:     $r->print('<br />'.
1.95      matthew  1741:               '<a href="'.$filename.'">'.&mt('Your csv file.').'</a>'."\n");
1.37      matthew  1742:     $r->rflush();
1.125     albertel 1743:     &csv_cleanup();
1.37      matthew  1744:     return;
                   1745:     
1.31      matthew  1746: }
1.2       stredwic 1747: 
                   1748: }
                   1749: 
1.28      matthew  1750: #######################################################
                   1751: #######################################################
                   1752: 
1.2       stredwic 1753: =pod
                   1754: 
1.54      matthew  1755: =item &StudentTriesOnSequence()
1.2       stredwic 1756: 
1.30      matthew  1757: Inputs:
1.2       stredwic 1758: 
                   1759: =over 4
                   1760: 
1.30      matthew  1761: =item $student
1.28      matthew  1762: 
1.30      matthew  1763: =item $studentdata Hash ref to all student data
1.2       stredwic 1764: 
1.30      matthew  1765: =item $seq Hash ref, the sequence we are working on
1.2       stredwic 1766: 
1.30      matthew  1767: =item $links if defined we will output links to each resource.
1.2       stredwic 1768: 
1.28      matthew  1769: =back
1.2       stredwic 1770: 
                   1771: =cut
1.1       stredwic 1772: 
1.28      matthew  1773: #######################################################
                   1774: #######################################################
1.112     matthew  1775: sub student_tries_on_sequence {
                   1776:     my ($student,$studentdata,$navmap,$seq,$links) = @_;
1.31      matthew  1777:     $links = 'no' if (! defined($links));
1.1       stredwic 1778:     my $Str = '';
1.30      matthew  1779:     my ($sum,$max) = (0,0);
1.51      matthew  1780:     my $performance_length = 0;
1.54      matthew  1781:     my @TriesData = ();
                   1782:     my $tries;
1.97      matthew  1783:     my $hasdata = 0; # flag - true if the student has any data on the sequence
1.115     matthew  1784:     foreach my $resource (&get_resources($navmap,$seq)) {
1.112     matthew  1785:         my $resource_data = $studentdata->{$resource->symb};
1.30      matthew  1786:         my $value = '';
1.112     matthew  1787:         foreach my $partnum (@{$resource->parts()}) {
1.54      matthew  1788:             $tries = undef;
1.30      matthew  1789:             $max++;
1.51      matthew  1790:             $performance_length++;
1.30      matthew  1791:             my $symbol = ' '; # default to space
                   1792:             #
1.78      matthew  1793:             my $awarded = 0;
                   1794:             if (exists($resource_data->{'resource.'.$partnum.'.awarded'})) {
                   1795:                 $awarded = $resource_data->{'resource.'.$partnum.'.awarded'};
                   1796:                 $awarded = 0 if (! $awarded);
                   1797:             }
                   1798:             #
                   1799:             my $status = '';
1.30      matthew  1800:             if (exists($resource_data->{'resource.'.$partnum.'.solved'})) {
1.78      matthew  1801:                 $status = $resource_data->{'resource.'.$partnum.'.solved'};
                   1802:             }
                   1803:             #
                   1804:             my $tries = 0;
                   1805:             if(exists($resource_data->{'resource.'.$partnum.'.tries'})) {
                   1806:                 $tries = $resource_data->{'resource.'.$partnum.'.tries'};
1.97      matthew  1807:                 $hasdata =1;
1.78      matthew  1808:             }
                   1809:             #
                   1810:             if ($awarded > 0) {
                   1811:                 # The student has gotten the problem correct to some degree
                   1812:                 if ($status eq 'excused') {
                   1813:                     $symbol = 'x';
                   1814:                     $max--;
                   1815:                 } elsif ($status eq 'correct_by_override') {
1.30      matthew  1816:                     $symbol = '+';
                   1817:                     $sum++;
1.78      matthew  1818:                 } elsif ($tries > 0) {
1.54      matthew  1819:                     if ($tries > 9) {
1.30      matthew  1820:                         $symbol = '*';
1.78      matthew  1821:                     } else {
1.54      matthew  1822:                         $symbol = $tries;
1.30      matthew  1823:                     }
                   1824:                     $sum++;
                   1825:                 } else {
1.78      matthew  1826:                     $symbol = '+';
                   1827:                     $sum++;
1.2       stredwic 1828:                 }
1.30      matthew  1829:             } else {
1.78      matthew  1830:                 # The student has the problem incorrect or it is ungraded
                   1831:                 if ($status eq 'excused') {
                   1832:                     $symbol = 'x';
                   1833:                     $max--;
                   1834:                 } elsif ($status eq 'incorrect_by_override') {
                   1835:                     $symbol = '-';
                   1836:                 } elsif ($status eq 'ungraded_attempted') {
1.124     matthew  1837:                     $symbol = 'u';
1.78      matthew  1838:                 } elsif ($status eq 'incorrect_attempted' ||
                   1839:                          $tries > 0)  {
1.30      matthew  1840:                     $symbol = '.';
                   1841:                 } else {
1.78      matthew  1842:                     # Problem is wrong and has not been attempted.
                   1843:                     $symbol=' ';
1.18      matthew  1844:                 }
1.2       stredwic 1845:             }
1.54      matthew  1846:             #
1.109     matthew  1847:             if (! defined($tries)) {
                   1848:                 $tries = 0;
                   1849:             }
                   1850:             if ($status =~ /^(incorrect|ungraded)/) {
                   1851:                 # Bug 3390: show '-' for tries on incorrect problems 
                   1852:                 # (csv & excel only)
                   1853:                 push(@TriesData,-$tries);
                   1854:             } else {
                   1855:                 push (@TriesData,$tries);
1.54      matthew  1856:             }
1.30      matthew  1857:             #
1.47      matthew  1858:             if ( ($links eq 'yes' && $symbol ne ' ') ||
                   1859:                  ($links eq 'all')) {
1.49      matthew  1860:                 if (length($symbol) > 1) {
                   1861:                     &Apache::lonnet::logthis('length of symbol "'.$symbol.'" > 1');
                   1862:                 }
1.30      matthew  1863:                 $symbol = '<a href="/adm/grades'.
1.112     matthew  1864:                     '?symb='.&Apache::lonnet::escape($resource->symb).
1.30      matthew  1865:                         '&student='.$student->{'username'}.
1.64      albertel 1866:                             '&userdom='.$student->{'domain'}.
1.30      matthew  1867:                                 '&command=submission">'.$symbol.'</a>';
                   1868:             }
                   1869:             $value .= $symbol;
1.2       stredwic 1870:         }
1.30      matthew  1871:         $Str .= $value;
1.17      minaeibi 1872:     }
1.112     matthew  1873:     if ($seq->randompick()) {
                   1874:         $max = $seq->randompick();
1.51      matthew  1875:     }
1.97      matthew  1876:     if (! $hasdata && $sum == 0) {
                   1877:         $sum = ' ';
                   1878:     }
1.54      matthew  1879:     return ($Str,$performance_length,$sum,$max,\@TriesData);
                   1880: }
                   1881: 
                   1882: #######################################################
                   1883: #######################################################
                   1884: 
                   1885: =pod
                   1886: 
1.115     matthew  1887: =item &student_performance_on_sequence
1.54      matthew  1888: 
                   1889: Inputs:
                   1890: 
                   1891: =over 4
                   1892: 
                   1893: =item $student
                   1894: 
                   1895: =item $studentdata Hash ref to all student data
                   1896: 
                   1897: =item $seq Hash ref, the sequence we are working on
                   1898: 
                   1899: =item $links if defined we will output links to each resource.
                   1900: 
                   1901: =back
                   1902: 
                   1903: =cut
                   1904: 
                   1905: #######################################################
                   1906: #######################################################
1.112     matthew  1907: sub student_performance_on_sequence {
1.129   ! bowersj2 1908:     my ($student,$studentdata,$navmap,$seq,$links,$awarded_only) = @_;
1.54      matthew  1909:     $links = 'no' if (! defined($links));
                   1910:     my $Str = ''; # final result string
                   1911:     my ($score,$max) = (0,0);
                   1912:     my $performance_length = 0;
                   1913:     my $symbol;
                   1914:     my @ScoreData = ();
                   1915:     my $partscore;
1.97      matthew  1916:     my $hasdata = 0; # flag, 0 if there were no submissions on the sequence
1.115     matthew  1917:     foreach my $resource (&get_resources($navmap,$seq)) {
1.112     matthew  1918:         my $symb = $resource->symb;
                   1919:         my $resource_data = $studentdata->{$symb};
                   1920:         foreach my $part (@{$resource->parts()}) {
1.54      matthew  1921:             $partscore = undef;
1.129   ! bowersj2 1922:             my $weight;
        !          1923:             if (!$awarded_only){
        !          1924:                 $weight = &Apache::lonnet::EXT('resource.'.$part.'.weight',
        !          1925:                                                $symb,
        !          1926:                                                $student->{'domain'},
        !          1927:                                                $student->{'username'},
        !          1928:                                                $student->{'section'});
        !          1929:             }
1.54      matthew  1930:             if (!defined($weight) || ($weight eq '')) { 
                   1931:                 $weight=1;
                   1932:             }
                   1933:             #
                   1934:             $max += $weight; # see the 'excused' branch below...
                   1935:             $performance_length++; # one character per part
                   1936:             $symbol = ' '; # default to space
                   1937:             #
1.97      matthew  1938:             my $awarded;
1.54      matthew  1939:             if (exists($resource_data->{'resource.'.$part.'.awarded'})) {
                   1940:                 $awarded = $resource_data->{'resource.'.$part.'.awarded'};
1.67      matthew  1941:                 $awarded = 0 if (! $awarded);
1.97      matthew  1942:                 $hasdata = 1;
1.54      matthew  1943:             }
                   1944:             #
                   1945:             $partscore = $weight*$awarded;
1.97      matthew  1946:             if (! defined($awarded)) {
                   1947:                 $partscore = undef;
                   1948:             }
1.54      matthew  1949:             $score += $partscore;
1.63      matthew  1950:             $symbol = $partscore; 
1.70      matthew  1951:             if (abs($symbol - sprintf("%.0f",$symbol)) < 0.001) {
                   1952:                 $symbol = sprintf("%.0f",$symbol);
                   1953:             }
1.54      matthew  1954:             if (length($symbol) > 1) {
                   1955:                 $symbol = '*';
                   1956:             }
1.124     matthew  1957:             if (exists($resource_data->{'resource.'.$part.'.solved'}) &&
                   1958:                 $resource_data->{'resource.'.$part.'.solved'} ne '') {
1.54      matthew  1959:                 my $status = $resource_data->{'resource.'.$part.'.solved'};
                   1960:                 if ($status eq 'excused') {
                   1961:                     $symbol = 'x';
                   1962:                     $max -= $weight; # Do not count 'excused' problems.
1.124     matthew  1963:                 } elsif ($status eq 'ungraded_attempted') {
                   1964:                     $symbol = 'u';
1.54      matthew  1965:                 }
1.97      matthew  1966:                 $hasdata = 1;
1.124     matthew  1967:             } elsif ($resource_data->{'resource.'.$part.'.award'} eq 'DRAFT') {
                   1968:                 $symbol = 'd';
                   1969:                 $hasdata = 1;
1.111     matthew  1970:             } elsif (!exists($resource_data->{'resource.'.$part.'.awarded'})){
1.54      matthew  1971:                 # Unsolved.  Did they try?
                   1972:                 if (exists($resource_data->{'resource.'.$part.'.tries'})){
                   1973:                     $symbol = '.';
1.97      matthew  1974:                     $hasdata = 1;
1.54      matthew  1975:                 } else {
                   1976:                     $symbol = ' ';
                   1977:                 }
                   1978:             }
                   1979:             #
1.60      matthew  1980:             if (! defined($partscore)) {
                   1981:                 $partscore = $symbol;
                   1982:             }
                   1983:             push (@ScoreData,$partscore);
                   1984:             #
1.54      matthew  1985:             if ( ($links eq 'yes' && $symbol ne ' ') || ($links eq 'all')) {
                   1986:                 $symbol = '<a href="/adm/grades'.
1.112     matthew  1987:                     '?symb='.&Apache::lonnet::escape($symb).
1.54      matthew  1988:                     '&student='.$student->{'username'}.
1.64      albertel 1989:                     '&userdom='.$student->{'domain'}.
1.54      matthew  1990:                     '&command=submission">'.$symbol.'</a>';
                   1991:             }
1.60      matthew  1992:             $Str .= $symbol;
1.54      matthew  1993:         }
1.97      matthew  1994:     }
                   1995:     if (! $hasdata && $score == 0) {
                   1996:         $score = ' ';
1.54      matthew  1997:     }
                   1998:     return ($Str,$performance_length,$score,$max,\@ScoreData);
1.1       stredwic 1999: }
1.23      minaeibi 2000: 
1.28      matthew  2001: #######################################################
                   2002: #######################################################
1.23      minaeibi 2003: 
1.2       stredwic 2004: =pod
                   2005: 
                   2006: =item &CreateLegend()
                   2007: 
                   2008: This function returns a formatted string containing the legend for the
                   2009: chart.  The legend describes the symbols used to represent grades for
                   2010: problems.
                   2011: 
                   2012: =cut
                   2013: 
1.28      matthew  2014: #######################################################
                   2015: #######################################################
1.2       stredwic 2016: sub CreateLegend {
                   2017:     my $Str = "<p><pre>".
1.124     matthew  2018:               " digit score or number of tries to get correct ".
1.12      minaeibi 2019:               "   *  correct by student in more than 9 tries\n".
1.20      minaeibi 2020: 	      "   +  correct by hand grading or override\n".
1.12      minaeibi 2021:               "   -  incorrect by override\n".
                   2022: 	      "   .  incorrect attempted\n".
1.124     matthew  2023: 	      "   u  ungraded attempted\n".
                   2024:               "   d  draft answer saved but not submitted\n".
1.13      minaeibi 2025:               "      not attempted (blank field)\n".
1.12      minaeibi 2026: 	      "   x  excused".
1.17      minaeibi 2027:               "</pre><p>";
1.2       stredwic 2028:     return $Str;
                   2029: }
                   2030: 
1.28      matthew  2031: #######################################################
                   2032: #######################################################
                   2033: 
1.30      matthew  2034: =pod 
1.2       stredwic 2035: 
                   2036: =back
                   2037: 
                   2038: =cut
                   2039: 
1.28      matthew  2040: #######################################################
                   2041: #######################################################
1.2       stredwic 2042: 
1.28      matthew  2043: 1;
1.2       stredwic 2044: 
1.1       stredwic 2045: __END__

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