Annotation of loncom/interface/statistics/lonstudentassessment.pm, revision 1.137

1.1       stredwic    1: # The LearningOnline Network with CAPA
                      2: #
1.137   ! albertel    3: # $Id: lonstudentassessment.pm,v 1.136 2006/04/08 06:59:44 albertel 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;
1.136     albertel   53: use Apache::lonstatistics();
                     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;
1.136     albertel   59: use Apache::grades();
                     60: use Apache::lonmsgdisplay();
1.112     matthew    61: use Time::HiRes;
1.31      matthew    62: use Spreadsheet::WriteExcel;
1.76      matthew    63: use Spreadsheet::WriteExcel::Utility();
1.31      matthew    64: 
                     65: #######################################################
                     66: #######################################################
                     67: =pod
                     68: 
                     69: =item Package Variables
                     70: 
                     71: =over 4
                     72: 
                     73: =item $Statistics Hash ref to store student data.  Indexed by symb,
                     74:       contains hashes with keys 'score' and 'max'.
                     75: 
                     76: =cut
                     77: 
                     78: #######################################################
                     79: #######################################################
1.1       stredwic   80: 
1.30      matthew    81: my $Statistics;
                     82: 
1.28      matthew    83: #######################################################
                     84: #######################################################
                     85: 
                     86: =pod
                     87: 
1.31      matthew    88: =item $show_links 'yes' or 'no' for linking to student performance data
                     89: 
                     90: =item $output_mode 'html', 'excel', or 'csv' for output mode
                     91: 
1.32      matthew    92: =item $show 'all', 'totals', or 'scores' determines how much data is output
1.31      matthew    93: 
1.49      matthew    94: =item $single_student_mode evaluates to true if we are showing only one
                     95: student.
                     96: 
1.31      matthew    97: =cut
                     98: 
                     99: #######################################################
                    100: #######################################################
                    101: my $show_links;
                    102: my $output_mode;
1.87      matthew   103: my $chosen_output;
1.49      matthew   104: my $single_student_mode;
1.28      matthew   105: 
1.31      matthew   106: #######################################################
                    107: #######################################################
                    108: # End of package variable declarations
1.28      matthew   109: 
1.31      matthew   110: =pod
1.28      matthew   111: 
1.31      matthew   112: =back
1.28      matthew   113: 
1.31      matthew   114: =cut
1.28      matthew   115: 
1.31      matthew   116: #######################################################
                    117: #######################################################
1.28      matthew   118: 
1.31      matthew   119: =pod
1.28      matthew   120: 
1.31      matthew   121: =item &BuildStudentAssessmentPage()
1.28      matthew   122: 
1.31      matthew   123: Inputs: 
1.4       stredwic  124: 
1.31      matthew   125: =over 4
1.28      matthew   126: 
                    127: =item $r Apache Request
                    128: 
                    129: =item $c Apache Connection 
                    130: 
                    131: =back
                    132: 
                    133: =cut
                    134: 
                    135: #######################################################
                    136: #######################################################
1.1       stredwic  137: sub BuildStudentAssessmentPage {
1.30      matthew   138:     my ($r,$c)=@_;
1.74      matthew   139:     #
1.30      matthew   140:     undef($Statistics);
1.66      matthew   141:     undef($show_links);
                    142:     undef($output_mode);
1.87      matthew   143:     undef($chosen_output);
1.66      matthew   144:     undef($single_student_mode);
1.74      matthew   145:     #
                    146:     my %Saveable_Parameters = ('Status' => 'scalar',
                    147:                                'chartoutputmode' => 'scalar',
                    148:                                'chartoutputdata' => 'scalar',
                    149:                                'Section' => 'array',
                    150:                                'StudentData' => 'array',
                    151:                                'Maps' => 'array');
                    152:     &Apache::loncommon::store_course_settings('chart',\%Saveable_Parameters);
                    153:     &Apache::loncommon::restore_course_settings('chart',\%Saveable_Parameters);
                    154:     #
                    155:     &Apache::lonstatistics::PrepareClasslist();
                    156:     #
1.65      matthew   157:     $single_student_mode = 0;
1.121     albertel  158:     $single_student_mode = 1 if ($env{'form.SelectedStudent'});
1.100     matthew   159:     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
                    160:                                             ['selectstudent']);
1.121     albertel  161:     if ($env{'form.selectstudent'}) {
1.59      matthew   162:         &Apache::lonstatistics::DisplayClasslist($r);
                    163:         return;
                    164:     }
1.30      matthew   165:     #
1.31      matthew   166:     # Print out the HTML headers for the interface
                    167:     #    This also parses the output mode selector
1.54      matthew   168:     #    This step must *always* be done.
1.30      matthew   169:     $r->print(&CreateInterface());
1.31      matthew   170:     $r->print('<input type="hidden" name="notfirstrun" value="true" />');
1.49      matthew   171:     $r->print('<input type="hidden" name="sort" value="'.
1.121     albertel  172:               $env{'form.sort'}.'" />');
1.7       stredwic  173:     $r->rflush();
1.58      matthew   174:     #
1.121     albertel  175:     if (! exists($env{'form.notfirstrun'}) && ! $single_student_mode) {
1.31      matthew   176:         return;
                    177:     }
1.119     matthew   178:     $r->print('<h4>'.
                    179:               &Apache::lonstatistics::section_and_enrollment_description().
                    180:               '</h4>');
1.31      matthew   181:     #
                    182:     my $initialize     = \&html_initialize;
                    183:     my $output_student = \&html_outputstudent;
                    184:     my $finish         = \&html_finish;
                    185:     #
                    186:     if ($output_mode eq 'excel') {
                    187:         $initialize     = \&excel_initialize;
                    188:         $output_student = \&excel_outputstudent;
                    189:         $finish         = \&excel_finish;
                    190:     } elsif ($output_mode eq 'csv') {
                    191:         $initialize     = \&csv_initialize;
                    192:         $output_student = \&csv_outputstudent;
                    193:         $finish         = \&csv_finish;
                    194:     }
1.30      matthew   195:     #
                    196:     if($c->aborted()) {  return ; }
1.31      matthew   197:     #
1.49      matthew   198:     # Determine which students we want to look at
                    199:     my @Students;
                    200:     if ($single_student_mode) {
                    201:         @Students = (&Apache::lonstatistics::current_student());
                    202:         $r->print(&next_and_previous_buttons());
                    203:         $r->rflush();
                    204:     } else {
                    205:         @Students = @Apache::lonstatistics::Students;
                    206:     }
1.56      matthew   207:     #
                    208:     # Perform generic initialization tasks
                    209:     #       Since we use lonnet::EXT to retrieve problem weights,
                    210:     #       to ensure current data we must clear the caches out.
                    211:     #       This makes sure that parameter changes at the student level
                    212:     #       are immediately reflected in the chart.
                    213:     &Apache::lonnet::clear_EXT_cache_status();
1.69      matthew   214:     #
                    215:     # Clean out loncoursedata's package data, just to be safe.
                    216:     &Apache::loncoursedata::clear_internal_caches();
1.49      matthew   217:     #
1.31      matthew   218:     # Call the initialize routine selected above
                    219:     $initialize->($r);
1.49      matthew   220:     foreach my $student (@Students) {
1.31      matthew   221:         if($c->aborted()) { 
                    222:             $finish->($r);
                    223:             return ; 
1.1       stredwic  224:         }
1.31      matthew   225:         # Call the output_student routine selected above
                    226:         $output_student->($r,$student);
                    227:     }
                    228:     # Call the "finish" routine selected above
                    229:     $finish->($r);
                    230:     #
                    231:     return;
                    232: }
                    233: 
                    234: #######################################################
                    235: #######################################################
1.49      matthew   236: sub next_and_previous_buttons {
                    237:     my $Str = '';
                    238:     $Str .= '<input type="hidden" name="SelectedStudent" value="'.
1.121     albertel  239:         $env{'form.SelectedStudent'}.'" />';
1.49      matthew   240:     #
                    241:     # Build the previous student link
                    242:     my $previous = &Apache::lonstatistics::previous_student();
                    243:     my $previousbutton = '';
                    244:     if (defined($previous)) {
                    245:         my $sname = $previous->{'username'}.':'.$previous->{'domain'};
                    246:         $previousbutton .= '<input type="button" value="'.
                    247:             'Previous Student ('.
                    248:             $previous->{'username'}.'@'.$previous->{'domain'}.')'.
                    249:             '" onclick="document.Statistics.SelectedStudent.value='.
                    250:             "'".$sname."'".';'.
                    251:             'document.Statistics.submit();" />';
                    252:     } else {
                    253:         $previousbutton .= '<input type="button" value="'.
                    254:             'Previous student (none)'.'" />';
                    255:     }
                    256:     #
                    257:     # Build the next student link
                    258:     my $next = &Apache::lonstatistics::next_student();
                    259:     my $nextbutton = '';
                    260:     if (defined($next)) {
                    261:         my $sname = $next->{'username'}.':'.$next->{'domain'};
                    262:         $nextbutton .= '<input type="button" value="'.
                    263:             'Next Student ('.
                    264:             $next->{'username'}.'@'.$next->{'domain'}.')'.
                    265:             '" onclick="document.Statistics.SelectedStudent.value='.
                    266:             "'".$sname."'".';'.
                    267:             'document.Statistics.submit();" />';
                    268:     } else {
                    269:         $nextbutton .= '<input type="button" value="'.
                    270:             'Next student (none)'.'" />';
                    271:     }
                    272:     #
                    273:     # Build the 'all students' button
                    274:     my $all = '';
                    275:     $all .= '<input type="button" value="All Students" '.
                    276:             '" onclick="document.Statistics.SelectedStudent.value='.
                    277:             "''".';'.'document.Statistics.submit();" />';
                    278:     $Str .= $previousbutton.('&nbsp;'x5).$all.('&nbsp;'x5).$nextbutton;
                    279:     return $Str;
                    280: }
                    281: 
                    282: #######################################################
                    283: #######################################################
1.30      matthew   284: 
1.31      matthew   285: sub get_student_fields_to_show {
                    286:     my @to_show = @Apache::lonstatistics::SelectedStudentData;
                    287:     foreach (@to_show) {
                    288:         if ($_ eq 'all') {
                    289:             @to_show = @Apache::lonstatistics::StudentDataOrder;
                    290:             last;
                    291:         }
                    292:     }
                    293:     return @to_show;
                    294: }
                    295: 
1.28      matthew   296: #######################################################
                    297: #######################################################
                    298: 
                    299: =pod
1.2       stredwic  300: 
1.28      matthew   301: =item &CreateInterface()
1.21      minaeibi  302: 
1.28      matthew   303: Called by &BuildStudentAssessmentPage to create the top part of the
                    304: page which displays the chart.
                    305: 
1.30      matthew   306: Inputs: None
1.28      matthew   307: 
                    308: Returns:  A string containing the HTML for the headers and top table for 
                    309: the chart page.
                    310: 
                    311: =cut
                    312: 
                    313: #######################################################
                    314: #######################################################
1.2       stredwic  315: sub CreateInterface {
1.4       stredwic  316:     my $Str = '';
1.95      matthew   317:     $Str .= &Apache::lonhtmlcommon::breadcrumbs(undef,'Chart');
1.30      matthew   318: #    $Str .= &CreateLegend();
                    319:     $Str .= '<table cellspacing="5">'."\n";
                    320:     $Str .= '<tr>';
1.75      matthew   321:     $Str .= '<td align="center"><b>'.&mt('Sections').'</b></td>';
                    322:     $Str .= '<td align="center"><b>'.&mt('Student Data</b>').'</td>';
                    323:     $Str .= '<td align="center"><b>'.&mt('Enrollment Status').'</b></td>';
                    324:     $Str .= '<td align="center"><b>'.&mt('Sequences and Folders').'</b></td>';
                    325:     $Str .= '<td align="center"><b>'.&mt('Output Format').'</b>'.
1.58      matthew   326:         &Apache::loncommon::help_open_topic("Chart_Output_Formats").
                    327:         '</td>';
1.75      matthew   328:     $Str .= '<td align="center"><b>'.&mt('Output Data').'</b>'.
1.58      matthew   329:         &Apache::loncommon::help_open_topic("Chart_Output_Data").
                    330:         '</td>';
1.30      matthew   331:     $Str .= '</tr>'."\n";
                    332:     #
1.4       stredwic  333:     $Str .= '<tr><td align="center">'."\n";
1.29      matthew   334:     $Str .= &Apache::lonstatistics::SectionSelect('Section','multiple',5);
1.4       stredwic  335:     $Str .= '</td><td align="center">';
1.30      matthew   336:     $Str .= &Apache::lonstatistics::StudentDataSelect('StudentData','multiple',
                    337:                                                       5,undef);
1.46      matthew   338:     $Str .= '</td><td>'."\n";
                    339:     $Str .= &Apache::lonhtmlcommon::StatusOptions(undef,undef,5);
1.4       stredwic  340:     $Str .= '</td><td>'."\n";
1.112     matthew   341:     $Str .= &Apache::lonstatistics::map_select('Maps','multiple,all',5);
1.31      matthew   342:     $Str .= '</td><td>'."\n";
                    343:     $Str .= &CreateAndParseOutputSelector();
1.54      matthew   344:     $Str .= '</td><td>'."\n";
                    345:     $Str .= &CreateAndParseOutputDataSelector();
1.30      matthew   346:     $Str .= '</td></tr>'."\n";
                    347:     $Str .= '</table>'."\n";
1.75      matthew   348:     $Str .= '<input type="submit" name="Generate Chart" value="'.
                    349:         &mt('Generate Chart').'" />';
1.59      matthew   350:     $Str .= '&nbsp;'x5;
1.75      matthew   351:     $Str .= '<input type="submit" name="selectstudent" value="'.
                    352:         &mt('Select One Student').'" />';
1.59      matthew   353:     $Str .= '&nbsp;'x5;
1.75      matthew   354:     $Str .= '<input type="submit" name="ClearCache" value="'.
                    355:         &mt('Clear Caches').'" />';
1.61      www       356:     $Str .= '&nbsp;'x5;
1.108     matthew   357:     $Str .= 
1.120     matthew   358:         &mt('Status [_1]',
1.108     matthew   359:             '<input type="text" name="stats_status" size="60" value="" />');
1.61      www       360:     $Str .= '<br />';
1.4       stredwic  361:     return $Str;
1.1       stredwic  362: }
1.30      matthew   363: 
                    364: #######################################################
                    365: #######################################################
                    366: 
                    367: =pod
                    368: 
1.31      matthew   369: =item &CreateAndParseOutputSelector()
1.30      matthew   370: 
                    371: =cut
                    372: 
                    373: #######################################################
                    374: #######################################################
1.32      matthew   375: my @OutputOptions = 
                    376:     ({ name  => 'HTML, with links',
                    377:        value => 'html, with links',
1.33      matthew   378:        description => 'Output HTML with each symbol linked to the problem '.
1.35      matthew   379: 	   'which generated it.',
                    380:        mode => 'html',
                    381:        show_links => 'yes',
                    382:        },
1.47      matthew   383:      { name  => 'HTML, with all links',
                    384:        value => 'html, with all links',
                    385:        description => 'Output HTML with each symbol linked to the problem '.
                    386: 	   'which generated it.  '.
                    387:            'This includes links for unattempted problems.',
                    388:        mode => 'html',
                    389:        show_links => 'all',
                    390:        },
1.32      matthew   391:      { name  => 'HTML, without links',
                    392:        value => 'html, without links',
1.33      matthew   393:        description => 'Output HTML.  By not including links, the size of the'.
                    394: 	   ' web page is greatly reduced.  If your browser crashes on the '.
1.35      matthew   395: 	   'full display, try this.',
                    396:        mode => 'html',
                    397:        show_links => 'no',
                    398:            },
1.54      matthew   399:      { name  => 'Excel',
                    400:        value => 'excel',
                    401:        description => 'Output an Excel file (compatable with Excel 95).',
1.35      matthew   402:        mode => 'excel',
                    403:        show_links => 'no',
1.54      matthew   404:    },
                    405:      { name  => 'CSV',
                    406:        value => 'csv',
1.96      www       407:        description => 'Output a comma separated values file suitable for '.
1.57      matthew   408:            'import into a spreadsheet program.  Using this method as opposed '.
                    409:            'to Excel output allows you to organize your data before importing'.
                    410:            ' it into a spreadsheet program.',
1.35      matthew   411:        mode => 'csv',
                    412:        show_links => 'no',
                    413:            },
1.32      matthew   414:      );
                    415: 
1.33      matthew   416: sub OutputDescriptions {
                    417:     my $Str = '';
1.58      matthew   418:     $Str .= "<h2>Output Formats</h2>\n";
1.33      matthew   419:     $Str .= "<dl>\n";
                    420:     foreach my $outputmode (@OutputOptions) {
                    421: 	$Str .="    <dt>".$outputmode->{'name'}."</dt>\n";
                    422: 	$Str .="        <dd>".$outputmode->{'description'}."</dd>\n";
                    423:     }
                    424:     $Str .= "</dl>\n";
                    425:     return $Str;
                    426: }
                    427: 
1.31      matthew   428: sub CreateAndParseOutputSelector {
                    429:     my $Str = '';
1.44      matthew   430:     my $elementname = 'chartoutputmode';
1.73      matthew   431:     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
                    432:                                             [$elementname]);
1.31      matthew   433:     #
                    434:     # Format for output options is 'mode, restrictions';
1.122     albertel  435:     my $selected = (&Apache::loncommon::get_env_multiple('form.'.$elementname))[0];
                    436:     $selected = 'html, without links' if (!$selected);
                    437: 
1.31      matthew   438:     #
                    439:     # Set package variables describing output mode
                    440:     $show_links  = 'no';
                    441:     $output_mode = 'html';
1.35      matthew   442:     foreach my $option (@OutputOptions) {
                    443:         next if ($option->{'value'} ne $selected);
                    444:         $output_mode = $option->{'mode'};
                    445:         $show_links  = $option->{'show_links'};
1.31      matthew   446:     }
1.35      matthew   447: 
1.31      matthew   448:     #
                    449:     # Build the form element
                    450:     $Str = qq/<select size="5" name="$elementname">/;
1.32      matthew   451:     foreach my $option (@OutputOptions) {
                    452:         $Str .= "\n".'    <option value="'.$option->{'value'}.'"';
                    453:         $Str .= " selected " if ($option->{'value'} eq $selected);
1.75      matthew   454:         $Str .= ">".&mt($option->{'name'})."<\/option>";
1.31      matthew   455:     }
                    456:     $Str .= "\n</select>";
                    457:     return $Str;
                    458: }
1.30      matthew   459: 
1.54      matthew   460: ##
                    461: ## Data selector stuff
                    462: ##
                    463: my @OutputDataOptions =
1.57      matthew   464:     (
1.72      matthew   465:      { name  => 'Scores Summary',
1.57      matthew   466:        base  => 'scores',
                    467:        value => 'sum and total',
1.87      matthew   468:        scores => 1,
                    469:        tries  => 0,
                    470:        every_problem => 0,
                    471:        sequence_sum => 1,
                    472:        sequence_max => 1,
                    473:        grand_total => 1,
1.101     matthew   474:        grand_maximum => 1,
1.89      matthew   475:        summary_table => 1,
1.90      matthew   476:        maximum_row => 1,
1.129     bowersj2  477:        ignore_weight => 0,
1.57      matthew   478:        shortdesc => 'Total Score and Maximum Possible for each '.
                    479:            'Sequence or Folder',
                    480:        longdesc => 'The score of each student as well as the '.
                    481:            ' maximum possible on each Sequence or Folder.',
                    482:        },
1.71      matthew   483:      { name  => 'Scores Per Problem',
1.57      matthew   484:        base  => 'scores',
1.71      matthew   485:        value => 'scores',
1.87      matthew   486:        scores => 1,
                    487:        tries  => 0,
                    488:        correct => 0,
                    489:        every_problem => 1,
                    490:        sequence_sum => 1,
                    491:        sequence_max => 1,
                    492:        grand_total => 1,
1.101     matthew   493:        grand_maximum => 1,
1.89      matthew   494:        summary_table => 1,
1.90      matthew   495:        maximum_row => 1,
1.129     bowersj2  496:        ignore_weight => 0,
1.71      matthew   497:        shortdesc => 'Score on each Problem Part',
                    498:        longdesc =>'The students score on each problem part, computed as'.
                    499:            'the part weight * part awarded',
1.57      matthew   500:        },
                    501:      { name  =>'Tries',
                    502:        base  =>'tries',
                    503:        value => 'tries',
1.87      matthew   504:        scores => 0,
                    505:        tries  => 1,
                    506:        correct => 0,
                    507:        every_problem => 1,
                    508:        sequence_sum => 0,
                    509:        sequence_max => 0,
                    510:        grand_total => 0,
1.101     matthew   511:        grand_maximum => 0,
1.90      matthew   512:        summary_table => 0,
                    513:        maximum_row => 0,
1.129     bowersj2  514:        ignore_weight => 0,
1.57      matthew   515:        shortdesc => 'Number of Tries before success on each Problem Part',
                    516:        longdesc =>'The number of tries before success on each problem part.',
1.109     matthew   517:        non_html_notes => 'negative values indicate an incorrect problem',
1.57      matthew   518:        },
                    519:      { name  =>'Parts Correct',
                    520:        base  =>'tries',
                    521:        value => 'parts correct total',
1.87      matthew   522:        scores => 0,
                    523:        tries  => 0,
                    524:        correct => 1,
                    525:        every_problem => 1,
                    526:        sequence_sum => 1,
                    527:        sequence_max => 1,
                    528:        grand_total => 1,
1.101     matthew   529:        grand_maximum => 1,
1.89      matthew   530:        summary_table => 1,
1.90      matthew   531:        maximum_row => 0,
1.129     bowersj2  532:        ignore_weight => 1,
1.57      matthew   533:        shortdesc => 'Number of Problem Parts completed successfully.',
                    534:        longdesc => 'The Number of Problem Parts completed successfully and '.
                    535:            'the maximum possible for each student',
                    536:        },
                    537:      );
                    538: 
                    539: sub HTMLifyOutputDataDescriptions {
                    540:     my $Str = '';
1.58      matthew   541:     $Str .= "<h2>Output Data</h2>\n";
1.57      matthew   542:     $Str .= "<dl>\n";
                    543:     foreach my $option (@OutputDataOptions) {
                    544:         $Str .= '    <dt>'.$option->{'name'}.'</dt>';
                    545:         $Str .= '<dd>'.$option->{'longdesc'}.'</dd>'."\n";
                    546:     }
                    547:     $Str .= "</dl>\n";
                    548:     return $Str;
                    549: }
1.54      matthew   550: 
                    551: sub CreateAndParseOutputDataSelector {
                    552:     my $Str = '';
                    553:     my $elementname = 'chartoutputdata';
                    554:     #
1.122     albertel  555:     my $selected = (&Apache::loncommon::get_env_multiple('form.'.$elementname))[0];
                    556:     $selected = 'scores' if (!$selected);
                    557: 
1.54      matthew   558:     #
1.87      matthew   559:     $chosen_output = $OutputDataOptions[0];
1.54      matthew   560:     foreach my $option (@OutputDataOptions) {
                    561:         if ($option->{'value'} eq $selected) {
1.87      matthew   562:             $chosen_output = $option;
1.54      matthew   563:         }
                    564:     }
                    565:     #
                    566:     # Build the form element
                    567:     $Str = qq/<select size="5" name="$elementname">/;
                    568:     foreach my $option (@OutputDataOptions) {
                    569:         $Str .= "\n".'    <option value="'.$option->{'value'}.'"';
1.87      matthew   570:         $Str .= " selected " if ($option->{'value'} eq $chosen_output->{'value'});
1.75      matthew   571:         $Str .= ">".&mt($option->{'name'})."<\/option>";
1.54      matthew   572:     }
                    573:     $Str .= "\n</select>";
                    574:     return $Str;
                    575: 
                    576: }
                    577: 
1.28      matthew   578: #######################################################
                    579: #######################################################
1.115     matthew   580: sub count_parts {
                    581:     my ($navmap,$sequence) = @_;
                    582:     my @resources = &get_resources($navmap,$sequence);
                    583:     my $count = 0;
                    584:     foreach my $res (@resources) {
                    585:         $count += scalar(@{$res->parts});
                    586:     }
                    587:     return $count;
                    588: }
                    589: 
                    590: sub get_resources {
                    591:     my ($navmap,$sequence) = @_;
                    592:     my @resources = $navmap->retrieveResources($sequence,
                    593:                                                sub { shift->is_problem(); },
                    594:                                                0,0,0);
                    595:     return @resources;
                    596: }
                    597: 
                    598: #######################################################
                    599: #######################################################
1.1       stredwic  600: 
1.28      matthew   601: =pod
                    602: 
1.31      matthew   603: =head2 HTML output routines
1.28      matthew   604: 
1.31      matthew   605: =item &html_initialize($r)
1.28      matthew   606: 
1.31      matthew   607: Create labels for the columns of student data to show.
1.28      matthew   608: 
1.31      matthew   609: =item &html_outputstudent($r,$student)
1.28      matthew   610: 
1.31      matthew   611: Return a line of the chart for a student.
1.28      matthew   612: 
1.31      matthew   613: =item &html_finish($r)
1.28      matthew   614: 
                    615: =cut
                    616: 
                    617: #######################################################
                    618: #######################################################
1.31      matthew   619: {
                    620:     my $padding;
                    621:     my $count;
                    622: 
1.39      matthew   623:     my $nodata_count; # The number of students for which there is no data
                    624:     my %prog_state;   # progress state used by loncommon PrgWin routines
1.102     matthew   625:     my $total_sum_width;
1.39      matthew   626: 
1.112     matthew   627:     my %width; # Holds sequence width information
                    628:     my @sequences;
                    629:     my $navmap; # Have to keep this around since weakref is a bit zealous
                    630: 
1.125     albertel  631: sub html_cleanup {
                    632:     undef(%prog_state);
                    633:     undef(%width);
                    634:     #
                    635:     undef($navmap);
                    636:     undef(@sequences);
                    637: }
                    638: 
1.31      matthew   639: sub html_initialize {
                    640:     my ($r) = @_;
1.30      matthew   641:     #
                    642:     $padding = ' 'x3;
1.35      matthew   643:     $count = 0;
1.39      matthew   644:     $nodata_count = 0;
1.125     albertel  645:     &html_cleanup();
1.115     matthew   646:     ($navmap,@sequences) = 
                    647:         &Apache::lonstatistics::selected_sequences_with_assessments();
                    648:     if (! ref($navmap)) {
                    649:         # Unable to get data, so bail out
                    650:         $r->print("<h3>".
                    651:                   &mt('Unable to retrieve course information.').
                    652:                   '</h3>');
                    653:     }
1.134     bowersj2  654: 
                    655:     # If we're showing links, show a checkbox to open in new
                    656:     # windows.
                    657:     if ($show_links ne 'no') {
                    658:         $r->print(<<NEW_WINDOW_CHECKBOX);
1.135     albertel  659: <script type="text/javascript">new_window = true;</script>
                    660: <p><label>Show links in new window: 
                    661: <input type="checkbox" checked="1" onclick="new_window=this.checked" />
                    662: </label></p>
1.134     bowersj2  663: NEW_WINDOW_CHECKBOX
                    664:     }
                    665: 
1.30      matthew   666:     #
1.121     albertel  667:     $r->print("<h3>".$env{'course.'.$env{'request.course.id'}.'.description'}.
1.38      matthew   668:               "&nbsp;&nbsp;".localtime(time)."</h3>");
1.112     matthew   669:     #
1.87      matthew   670:     if ($chosen_output->{'base'} !~ /^final table/) {
                    671:         $r->print("<h3>".$chosen_output->{'shortdesc'}."</h3>");        
1.39      matthew   672:     }
1.31      matthew   673:     my $Str = "<pre>\n";
1.30      matthew   674:     # First, the @StudentData fields need to be listed
1.31      matthew   675:     my @to_show = &get_student_fields_to_show();
1.30      matthew   676:     foreach my $field (@to_show) {
                    677:         my $title=$Apache::lonstatistics::StudentData{$field}->{'title'};
                    678:         my $base =$Apache::lonstatistics::StudentData{$field}->{'base_width'};
                    679:         my $width=$Apache::lonstatistics::StudentData{$field}->{'width'};
                    680:         $Str .= $title.' 'x($width-$base).$padding;
                    681:     }
1.89      matthew   682:     #
                    683:     # Compute the column widths and output the sequence titles
1.102     matthew   684:     my $total_count;
1.112     matthew   685:     #
                    686:     # Compute sequence widths
                    687:     my $starttime = Time::HiRes::time;
                    688:     foreach my $seq (@sequences) {
                    689:         my $symb = $seq->symb;
                    690:         my $title = $seq->compTitle;
                    691:         $width{$symb}->{'width_sum'} = 0;
                    692:         # Compute width of sum
1.89      matthew   693:         if ($chosen_output->{'sequence_sum'}) {
1.99      matthew   694:             if ($chosen_output->{'every_problem'}) {
                    695:                 # Use 1 digit for a space
1.112     matthew   696:                 $width{$symb}->{'width_sum'} += 1;            
1.99      matthew   697:             }
1.118     matthew   698: 	    $total_count += &count_parts($navmap,$seq);
1.89      matthew   699:             # Use 3 digits for the sum
1.112     matthew   700:             $width{$symb}->{'width_sum'} += 3;
1.89      matthew   701:         }
1.112     matthew   702:         # Compute width of maximum
1.89      matthew   703:         if ($chosen_output->{'sequence_max'}) {
1.112     matthew   704:             if ($width{$symb}->{'width_sum'}>0) {
1.89      matthew   705:                 # One digit for the '/'
1.112     matthew   706:                 $width{$symb}->{'width_sum'} +=1;
1.89      matthew   707:             }
                    708:             # Use 3 digits for the total
1.112     matthew   709:             $width{$symb}->{'width_sum'}+=3;
1.89      matthew   710:         }
1.94      matthew   711: 	#
1.89      matthew   712:         if ($chosen_output->{'every_problem'}) {
                    713:             # one problem per digit
1.115     matthew   714:             $width{$symb}->{'width_parts'}= &count_parts($navmap,$seq);
                    715:             $width{$symb}->{'width_problem'} += $width{$symb}->{'width_parts'};
1.89      matthew   716:         } else {
1.112     matthew   717:             $width{$symb}->{'width_problem'} = 0;
1.89      matthew   718:         }
1.112     matthew   719:         $width{$symb}->{'width_total'} = $width{$symb}->{'width_problem'} + 
                    720:                                      $width{$symb}->{'width_sum'};
                    721:         if ($width{$symb}->{'width_total'} < length(&HTML::Entities::decode($title))) {
                    722:             $width{$symb}->{'width_total'} = length(&HTML::Entities::decode($title));
1.89      matthew   723:         }
                    724:         #
                    725:         # Output the sequence titles
1.112     matthew   726:         $Str .= $title.(' 'x($width{$symb}->{'width_total'}-
                    727:                             length($title)
                    728:                             )).$padding;
1.30      matthew   729:     }
1.102     matthew   730:     $total_sum_width = length($total_count)+1;
                    731:     $Str .= "    total</pre>\n";
1.31      matthew   732:     $Str .= "<pre>";
                    733:     $r->print($Str);
                    734:     $r->rflush();
1.132     bowersj2  735: 
                    736:     $r->print(<<JS);
                    737: <script>
                    738: // get the left offset of a given widget as an absolute position
                    739: function getLeftOffset (element) {
                    740:     return collect(element, "offsetLeft");
                    741: }
                    742: 
                    743: // get the top offset of a given widget as an absolute position
                    744: function getTopOffset (element) {
                    745:     return collect(element, "offsetTop");
                    746: }
                    747: 
                    748: function collect(element, att) {
                    749:     var val = 0;
                    750:     while(element) {
                    751:         val += element[att];
                    752:         element = element.offsetParent;
                    753:     }
                    754:     return val;
                    755: }
                    756: 
                    757: var currentDiv;
                    758: var oldBorder;
                    759: var currentElement;
                    760: function popup_score(element, score) {
                    761:     popdown_score();
                    762:     var left = getLeftOffset(element);
                    763:     var top = getTopOffset(element);
                    764:     var div = document.createElement("div");
                    765:     div.style.border = "1px solid #8888FF";
                    766:     div.style.backgroundColor = "#CCCCFF";
                    767:     div.appendChild(document.createTextNode(score));
                    768:     div.style.position = "absolute";
                    769:     div.style.top = (top - 25) + "px";
                    770:     div.style.left = (left - 10) + "px";
                    771:     currentDiv = div;
1.133     bowersj2  772:     document.body.insertBefore(div, document.body.childNodes[0]);
1.132     bowersj2  773:     oldBorder = element.style.border;
                    774:     element.style.border = "1px solid yellow";
                    775:     currentElement = element;
                    776: }
                    777: 
                    778: function popdown_score() {
                    779:     if (currentDiv) {
                    780:         document.body.removeChild(currentDiv);
                    781:     }
                    782:     if (currentElement) {
                    783:         currentElement.style.border = oldBorder;
                    784:     }
                    785:     currentDiv = undefined;
                    786: }
                    787: </script>
                    788: JS
                    789: 
1.123     albertel  790:     #
                    791:     # Let the user know what we are doing
                    792:     my $studentcount = scalar(@Apache::lonstatistics::Students); 
                    793:     if ($env{'form.SelectedStudent'}) {
                    794:         $studentcount = '1';
                    795:     }
                    796:     #
                    797:     # Initialize progress window
                    798:     %prog_state=&Apache::lonhtmlcommon::Create_PrgWin
                    799:         ($r,'HTML Chart Status',
                    800:          'HTML Chart Progress', $studentcount,
                    801:          'inline',undef,'Statistics','stats_status');
                    802:     #
                    803:     &Apache::lonhtmlcommon::Update_PrgWin($r,\%prog_state,
                    804:                                           'Processing first student');
1.31      matthew   805:     return;
1.30      matthew   806: }
                    807: 
1.31      matthew   808: sub html_outputstudent {
                    809:     my ($r,$student) = @_;
1.2       stredwic  810:     my $Str = '';
1.112     matthew   811:     return if (! defined($navmap));
1.35      matthew   812:     #
1.87      matthew   813:     if($count++ % 5 == 0 && $count > 0) {
1.35      matthew   814:         $r->print("</pre><pre>");
                    815:     }
1.30      matthew   816:     # First, the @StudentData fields need to be listed
1.31      matthew   817:     my @to_show = &get_student_fields_to_show();
1.30      matthew   818:     foreach my $field (@to_show) {
                    819:         my $title=$student->{$field};
1.103     matthew   820:         # Deal with 'comments' - how I love special cases
                    821:         if ($field eq 'comments') {
                    822:             $title = '<a href="/adm/'.$student->{'domain'}.'/'.$student->{'username'}.'/'.'aboutme#coursecomment">'.&mt('Comments').'</a>';
                    823:         }
1.31      matthew   824:         my $base = length($title);
1.30      matthew   825:         my $width=$Apache::lonstatistics::StudentData{$field}->{'width'};
                    826:         $Str .= $title.' 'x($width-$base).$padding;
                    827:     }
                    828:     # Get ALL the students data
                    829:     my %StudentsData;
                    830:     my @tmp = &Apache::loncoursedata::get_current_state
                    831:         ($student->{'username'},$student->{'domain'},undef,
1.121     albertel  832:          $env{'request.course.id'});
1.30      matthew   833:     if ((scalar @tmp > 0) && ($tmp[0] !~ /^error:/)) {
                    834:         %StudentsData = @tmp;
                    835:     }
                    836:     if (scalar(@tmp) < 1) {
1.39      matthew   837:         $nodata_count++;
1.30      matthew   838:         $Str .= '<font color="blue">No Course Data</font>'."\n";
1.31      matthew   839:         $r->print($Str);
                    840:         $r->rflush();
                    841:         return;
1.30      matthew   842:     }
                    843:     #
                    844:     # By sequence build up the data
                    845:     my $studentstats;
1.31      matthew   846:     my $PerformanceStr = '';
1.112     matthew   847:     foreach my $seq (@sequences) {
1.118     matthew   848:         my $symb = $seq->symb;
1.54      matthew   849:         my ($performance,$performance_length,$score,$seq_max,$rawdata);
1.87      matthew   850:         if ($chosen_output->{'tries'}) {
1.54      matthew   851:             ($performance,$performance_length,$score,$seq_max,$rawdata) =
1.112     matthew   852:                 &student_tries_on_sequence($student,\%StudentsData,
                    853:                                            $navmap,$seq,$show_links);
1.54      matthew   854:         } else {
                    855:             ($performance,$performance_length,$score,$seq_max,$rawdata) =
1.112     matthew   856:                 &student_performance_on_sequence($student,\%StudentsData,
1.129     bowersj2  857:                                                  $navmap,$seq,$show_links,
                    858:                                                  $chosen_output->{ignore_weight});
1.54      matthew   859:         }
1.89      matthew   860:         my $ratio='';
1.118     matthew   861:         if ($chosen_output->{'every_problem'} && 
                    862:             $chosen_output->{'sequence_sum'}) {
1.99      matthew   863:             $ratio .= ' ';
                    864:         }
1.97      matthew   865:         if ($chosen_output->{'sequence_sum'} && $score ne ' ') {
1.115     matthew   866:             my $score .= sprintf("%3.0f",$score);
                    867:             $ratio .= (' 'x(3-length($score))).$score;
1.98      matthew   868:         } elsif($chosen_output->{'sequence_sum'}) {
1.97      matthew   869:             $ratio .= ' 'x3;
1.89      matthew   870:         }
                    871:         if ($chosen_output->{'sequence_max'}) {
                    872:             if ($chosen_output->{'sequence_sum'}) {
                    873:                 $ratio .= '/';
                    874:             }
1.99      matthew   875:             $ratio .= sprintf("%3.0f",$seq_max);
1.89      matthew   876:         }
1.31      matthew   877:         #
1.89      matthew   878:         if (! $chosen_output->{'every_problem'}) {
                    879:             $performance = '';
1.94      matthew   880: 	    $performance_length=0;
1.30      matthew   881:         }
1.118     matthew   882:         $performance .= ' 'x($width{$symb}->{'width_total'} -
1.112     matthew   883:                              $performance_length -
1.118     matthew   884:                              $width{$symb}->{'width_sum'}).
1.89      matthew   885:             $ratio;
1.31      matthew   886:         #
                    887:         $Str .= $performance.$padding;
                    888:         #
1.118     matthew   889:         $studentstats->{$symb}->{'score'}= $score;
                    890:         $studentstats->{$symb}->{'max'}  = $seq_max;
1.30      matthew   891:     }
                    892:     #
                    893:     # Total it up and store the statistics info.
1.97      matthew   894:     my ($score,$max);
1.30      matthew   895:     while (my ($symb,$seq_stats) = each (%{$studentstats})) {
                    896:         $Statistics->{$symb}->{'score'} += $seq_stats->{'score'};
1.54      matthew   897:         if ($Statistics->{$symb}->{'max'} < $seq_stats->{'max'}) {
                    898:             $Statistics->{$symb}->{'max'} = $seq_stats->{'max'};
                    899:         }
1.97      matthew   900:         if ($seq_stats->{'score'} ne ' ') {
                    901:             $score += $seq_stats->{'score'};
                    902:             $Statistics->{$symb}->{'num_students'}++;
                    903:         }
1.30      matthew   904:         $max   += $seq_stats->{'max'};
                    905:     }
1.97      matthew   906:     if (! defined($score)) {
1.102     matthew   907:         $score = ' ' x $total_sum_width;
1.105     matthew   908:     } else {
                    909:         $score = sprintf("%.0f",$score);
1.115     matthew   910:         $score = (' 'x(3-length($score))).$score;
1.97      matthew   911:     }
1.102     matthew   912:     $Str .= ' '.' 'x($total_sum_width-length($score)).$score.' / '.$max;
1.30      matthew   913:     $Str .= " \n";
1.39      matthew   914:     #
1.31      matthew   915:     $r->print($Str);
                    916:     #
                    917:     $r->rflush();
1.123     albertel  918:     &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,'last student');
1.31      matthew   919:     return;
1.30      matthew   920: }    
1.2       stredwic  921: 
1.31      matthew   922: sub html_finish {
                    923:     my ($r) = @_;
1.112     matthew   924:     return if (! defined($navmap));
1.39      matthew   925:     #
                    926:     # Check for suppressed output and close the progress window if so
1.87      matthew   927:     $r->print("</pre>\n"); 
1.90      matthew   928:     if ($chosen_output->{'summary_table'}) {
                    929:         if ($single_student_mode) {
                    930:             $r->print(&SingleStudentTotal());
                    931:         } else {
                    932:             $r->print(&StudentAverageTotal());
                    933:         }
1.49      matthew   934:     }
1.31      matthew   935:     $r->rflush();
1.123     albertel  936:     &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
1.125     albertel  937:     &html_cleanup();
1.31      matthew   938:     return;
                    939: }
                    940: 
1.39      matthew   941: sub StudentAverageTotal {
1.105     matthew   942:     my $Str = '<h3>'.&mt('Summary Tables').'</h3>'.$/;
1.39      matthew   943:     $Str .= '<table border=2 cellspacing="1">'."\n";
1.105     matthew   944:     $Str .= '<tr>'.
                    945:         '<th>'.&mt('Title').'</th>'.
                    946:         '<th>'.&mt('Average').'</th>'.
                    947:         '<th>'.&mt('Maximum').'</th>'.
                    948:         '</tr>'.$/;
1.112     matthew   949:     foreach my $seq (@sequences) {
                    950:         my $symb = $seq->symb;
1.42      matthew   951:         my $ave;
1.112     matthew   952:         my $num_students = $Statistics->{$symb}->{'num_students'};
1.97      matthew   953:         if ($num_students > 0) {
                    954:             $ave = int(100*
1.112     matthew   955:                        ($Statistics->{$symb}->{'score'}/$num_students)
1.97      matthew   956:                        )/100;
1.42      matthew   957:         } else {
                    958:             $ave = 0;
                    959:         }
1.112     matthew   960:         my $max = $Statistics->{$symb}->{'max'};
1.82      matthew   961:         $ave = sprintf("%.2f",$ave);
1.112     matthew   962:         $Str .= '<tr><td>'.$seq->compTitle.'</td>'.
1.82      matthew   963:             '<td align="right">'.$ave.'&nbsp;</td>'.
                    964:             '<td align="right">'.$max.'&nbsp;'.'</td></tr>'."\n";
1.39      matthew   965:     }
                    966:     $Str .= "</table>\n";
                    967:     return $Str;
                    968: }
                    969: 
1.49      matthew   970: sub SingleStudentTotal {
1.115     matthew   971:     return if (! defined($navmap));
1.49      matthew   972:     my $student = &Apache::lonstatistics::current_student();
1.105     matthew   973:     my $Str = '<h3>'.&mt('Summary table for [_1] ([_2]@[_3])',
                    974:                          $student->{'fullname'},
                    975:                          $student->{'username'},$student->{'domain'}).'</h3>';
                    976:     $Str .= $/;
1.49      matthew   977:     $Str .= '<table border=2 cellspacing="1">'."\n";
                    978:     $Str .= 
1.105     matthew   979:         '<tr>'.
                    980:         '<th>'.&mt('Sequence or Folder').'</th>';
                    981:     if ($chosen_output->{'base'} eq 'tries') {
                    982:         $Str .= '<th>'.&mt('Parts Correct').'</th>';
                    983:     } else {
                    984:         $Str .= '<th>'.&mt('Score').'</th>';
                    985:     }
                    986:     $Str .= '<th>'.&mt('Maximum').'</th>'."</tr>\n";
1.49      matthew   987:     my $total = 0;
                    988:     my $total_max = 0;
1.115     matthew   989:     foreach my $seq (@sequences) {
1.112     matthew   990:         my $value = $Statistics->{$seq->symb}->{'score'};
                    991:         my $max = $Statistics->{$seq->symb}->{'max'};
                    992:         $Str .= '<tr><td>'.&HTML::Entities::encode($seq->compTitle).'</td>'.
1.49      matthew   993:             '<td align="right">'.$value.'</td>'.
                    994:                 '<td align="right">'.$max.'</td></tr>'."\n";
                    995:         $total += $value;
                    996:         $total_max +=$max;
                    997:     }
1.105     matthew   998:     $Str .= '<tr><td><b>'.&mt('Total').'</b></td>'.
1.49      matthew   999:         '<td align="right">'.$total.'</td>'.
                   1000:         '<td align="right">'.$total_max."</td></tr>\n";
                   1001:     $Str .= "</table>\n";
                   1002:     return $Str;
                   1003: }
                   1004: 
1.31      matthew  1005: }
                   1006: 
                   1007: #######################################################
                   1008: #######################################################
                   1009: 
                   1010: =pod
                   1011: 
                   1012: =head2 EXCEL subroutines
                   1013: 
                   1014: =item &excel_initialize($r)
                   1015: 
                   1016: =item &excel_outputstudent($r,$student)
                   1017: 
                   1018: =item &excel_finish($r)
                   1019: 
                   1020: =cut
                   1021: 
                   1022: #######################################################
                   1023: #######################################################
                   1024: {
                   1025: 
                   1026: my $excel_sheet;
1.32      matthew  1027: my $excel_workbook;
1.117     matthew  1028: my $format;
1.32      matthew  1029: 
                   1030: my $filename;
                   1031: my $rows_output;
                   1032: my $cols_output;
                   1033: 
1.36      matthew  1034: my %prog_state; # progress window state
1.54      matthew  1035: my $request_aborted;
1.31      matthew  1036: 
1.76      matthew  1037: my $total_formula;
1.101     matthew  1038: my $maximum_formula;
1.115     matthew  1039: my %formula_data;
                   1040: 
                   1041: my $navmap;
                   1042: my @sequences;
1.76      matthew  1043: 
1.125     albertel 1044: sub excel_cleanup {
1.31      matthew  1045:     #
1.66      matthew  1046:     undef ($excel_sheet);
                   1047:     undef ($excel_workbook);
                   1048:     undef ($filename);
                   1049:     undef ($rows_output);
                   1050:     undef ($cols_output);
                   1051:     undef (%prog_state);
                   1052:     undef ($request_aborted);
1.76      matthew  1053:     undef ($total_formula);
1.101     matthew  1054:     undef ($maximum_formula);
1.66      matthew  1055:     #
1.115     matthew  1056:     undef(%formula_data);
                   1057:     #
                   1058:     undef($navmap);
                   1059:     undef(@sequences);
1.125     albertel 1060: }
                   1061: 
                   1062: sub excel_initialize {
                   1063:     my ($r) = @_;
                   1064: 
                   1065:     &excel_cleanup();
1.115     matthew  1066:     ($navmap,@sequences) = 
                   1067:         &Apache::lonstatistics::selected_sequences_with_assessments();
                   1068:     if (! ref($navmap)) {
                   1069:         # Unable to get data, so bail out
                   1070:         $r->print("<h3>".
                   1071:                   &mt('Unable to retrieve course information.').
                   1072:                   '</h3>');
                   1073:     }
                   1074:     #
1.54      matthew  1075:     my $total_columns = scalar(&get_student_fields_to_show());
1.90      matthew  1076:     my $num_students = scalar(@Apache::lonstatistics::Students);
                   1077:     #
1.115     matthew  1078:     foreach my $seq (@sequences) {
1.88      matthew  1079:         if ($chosen_output->{'every_problem'}) {
1.115     matthew  1080:             $total_columns+=&count_parts($navmap,$seq);
1.88      matthew  1081:         }
1.87      matthew  1082:         # Add 2 because we need a 'sequence_sum' and 'total' column for each
1.88      matthew  1083:         $total_columns += 2;
1.54      matthew  1084:     }
1.105     matthew  1085:     my $too_many_cols_error_message = 
                   1086:         '<h2>'.&mt('Unable to Complete Request').'</h2>'.$/.
                   1087:         '<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>'.$/.
                   1088:         '<p>'.&mt('You may consider reducing the number of <b>Sequences or Folders</b> you have selected.').'</p>'.$/.
                   1089:         '<p>'.&mt('LON-CAPA can produce <b>CSV</b> files of this data or Excel files of the <b>Scores Summary</b> data.').'</p>'.$/;
1.87      matthew  1090:     if ($chosen_output->{'base'} eq 'tries' && $total_columns > 255) {
1.105     matthew  1091:         $r->print($too_many_cols_error_message);
                   1092:         $request_aborted = 1;
1.54      matthew  1093:     }
1.87      matthew  1094:     if ($chosen_output->{'base'} eq 'scores' && $total_columns > 255) {
1.105     matthew  1095:         $r->print($too_many_cols_error_message);
                   1096:         $request_aborted = 1;
1.54      matthew  1097:     }
                   1098:     return if ($request_aborted);
                   1099:     #
1.32      matthew  1100:     #
                   1101:     $excel_workbook = undef;
                   1102:     $excel_sheet = undef;
                   1103:     #
                   1104:     $rows_output = 0;
                   1105:     $cols_output = 0;
                   1106:     #
1.90      matthew  1107:     # Determine rows 
                   1108:     my $header_row = $rows_output++;
                   1109:     my $description_row = $rows_output++;
1.109     matthew  1110:     my $notes_row = $rows_output++;
1.90      matthew  1111:     $rows_output++;        # blank row
                   1112:     my $summary_header_row;
                   1113:     if ($chosen_output->{'summary_table'}) {
                   1114:         $summary_header_row = $rows_output++;
1.115     matthew  1115:         $rows_output+= scalar(@sequences);
1.90      matthew  1116:         $rows_output++;
                   1117:     }
                   1118:     my $sequence_name_row = $rows_output++;
                   1119:     my $resource_name_row = $rows_output++;
                   1120:     my $maximum_data_row = $rows_output++;
                   1121:     if (! $chosen_output->{'maximum_row'}) {
                   1122:         $rows_output--;
                   1123:     }
                   1124:     my $first_data_row = $rows_output++;
                   1125:     #
1.32      matthew  1126:     # Create sheet
1.117     matthew  1127:     ($excel_workbook,$filename,$format)=
                   1128:         &Apache::loncommon::create_workbook($r);
                   1129:     return if (! defined($excel_workbook));
1.91      matthew  1130:     #
1.32      matthew  1131:     # Add a worksheet
1.121     albertel 1132:     my $sheetname = $env{'course.'.$env{'request.course.id'}.'.description'};
1.67      matthew  1133:     $sheetname = &Apache::loncommon::clean_excel_name($sheetname);
1.33      matthew  1134:     $excel_sheet = $excel_workbook->addworksheet($sheetname);
1.85      matthew  1135:     #
1.34      matthew  1136:     # Put the course description in the header
1.90      matthew  1137:     $excel_sheet->write($header_row,$cols_output++,
1.121     albertel 1138:                    $env{'course.'.$env{'request.course.id'}.'.description'},
1.85      matthew  1139:                         $format->{'h1'});
1.34      matthew  1140:     $cols_output += 3;
                   1141:     #
                   1142:     # Put a description of the sections listed
                   1143:     my $sectionstring = '';
1.119     matthew  1144:     my @Sections = &Apache::lonstatistics::get_selected_sections();
1.120     matthew  1145:     $excel_sheet->write($header_row,$cols_output++,
1.124     matthew  1146:                         &Apache::lonstatistics::section_and_enrollment_description('plaintext'),
1.85      matthew  1147:                         $format->{'h3'});
1.34      matthew  1148:     #
                   1149:     # Put the date in there too
1.90      matthew  1150:     $excel_sheet->write($header_row,$cols_output++,
1.85      matthew  1151:                         'Compiled on '.localtime(time),$format->{'h3'});
1.34      matthew  1152:     #
1.54      matthew  1153:     $cols_output = 0;
1.90      matthew  1154:     $excel_sheet->write($description_row,$cols_output++,
1.87      matthew  1155:                         $chosen_output->{'shortdesc'},
1.109     matthew  1156:                         $format->{'b'});
                   1157:     #
                   1158:     $cols_output = 0;
                   1159:     $excel_sheet->write($notes_row,$cols_output++,
                   1160:                         $chosen_output->{'non_html_notes'},
                   1161:                         $format->{'i'});
                   1162:     
1.90      matthew  1163:     ##############################################
                   1164:     # Output headings for the raw data
                   1165:     ##############################################
1.86      matthew  1166:     #
1.32      matthew  1167:     # Add the student headers
1.34      matthew  1168:     $cols_output = 0;
1.32      matthew  1169:     foreach my $field (&get_student_fields_to_show()) {
1.86      matthew  1170:         $excel_sheet->write($resource_name_row,$cols_output++,$field,
1.85      matthew  1171:                             $format->{'bold'});
1.32      matthew  1172:     }
                   1173:     #
1.54      matthew  1174:     # Add the remaining column headers
1.76      matthew  1175:     my $total_formula_string = '=0';
1.101     matthew  1176:     my $maximum_formula_string = '=0';
1.115     matthew  1177:     foreach my $seq (@sequences) {
                   1178:         my $symb = $seq->symb;
1.86      matthew  1179:         $excel_sheet->write($sequence_name_row,,
1.115     matthew  1180:                             $cols_output,$seq->compTitle,$format->{'bold'});
1.86      matthew  1181:         # Determine starting cell
1.115     matthew  1182:         $formula_data{$symb}->{'Excel:startcell'}=
1.86      matthew  1183:             &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1.90      matthew  1184:             ($first_data_row,$cols_output);
1.115     matthew  1185:         $formula_data{$symb}->{'Excel:startcol'}=$cols_output;
1.87      matthew  1186:         my $count = 0;
                   1187:         if ($chosen_output->{'every_problem'}) {
1.76      matthew  1188:             # Put the names of the problems and parts into the sheet
1.115     matthew  1189:             foreach my $res (&get_resources($navmap,$seq)) {
                   1190:                 if (scalar(@{$res->parts}) > 1) {
                   1191:                     foreach my $part (@{$res->parts}) {
1.86      matthew  1192:                         $excel_sheet->write($resource_name_row,
1.54      matthew  1193:                                             $cols_output++,
1.115     matthew  1194:                                             $res->compTitle.' part '.$res->part_display($part),
1.85      matthew  1195:                                             $format->{'bold'});
1.106     matthew  1196:                         $count++;
1.54      matthew  1197:                     }
                   1198:                 } else {
1.86      matthew  1199:                     $excel_sheet->write($resource_name_row,
1.54      matthew  1200:                                         $cols_output++,
1.115     matthew  1201:                                         $res->compTitle,$format->{'bold'});
1.106     matthew  1202:                     $count++;
1.54      matthew  1203:                 }
                   1204:             }
1.79      matthew  1205:         }
1.87      matthew  1206:         # Determine ending cell
                   1207:         if ($count <= 1) {
1.115     matthew  1208:             $formula_data{$symb}->{'Excel:endcell'} = $formula_data{$symb}->{'Excel:startcell'};
                   1209:             $formula_data{$symb}->{'Excel:endcol'}  = $formula_data{$symb}->{'Excel:startcol'};
1.87      matthew  1210:         } else {
1.115     matthew  1211:             $formula_data{$symb}->{'Excel:endcell'} = 
1.87      matthew  1212:                 &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1.90      matthew  1213:                 ($first_data_row,$cols_output-1);
1.115     matthew  1214:             $formula_data{$symb}->{'Excel:endcol'} = $cols_output-1;
1.87      matthew  1215:         }
                   1216:         # Create the formula for summing up this sequence
1.115     matthew  1217:         if (! exists($formula_data{$symb}->{'Excel:endcell'}) ||
                   1218:             ! defined($formula_data{$symb}->{'Excel:endcell'})) {
                   1219:             $formula_data{$symb}->{'Excel:endcell'} = $formula_data{$symb}->{'Excel:startcell'};
                   1220:         }
1.128     bowersj2 1221: 
1.127     bowersj2 1222:         my $start = $formula_data{$symb}->{'Excel:startcell'};
                   1223:         my $end = $formula_data{$symb}->{'Excel:endcell'};
1.115     matthew  1224:         $formula_data{$symb}->{'Excel:sum'}= $excel_sheet->store_formula
1.127     bowersj2 1225:             ("=IF(COUNT($start\:$end),SUM($start\:$end),\"\")");
1.79      matthew  1226:         # Determine cell the score is held in
1.115     matthew  1227:         $formula_data{$symb}->{'Excel:scorecell'} = 
1.79      matthew  1228:             &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1.90      matthew  1229:             ($first_data_row,$cols_output);
1.115     matthew  1230:         $formula_data{$symb}->{'Excel:scorecol'}=$cols_output;
1.87      matthew  1231:         if ($chosen_output->{'base'} eq 'parts correct total') {
1.86      matthew  1232:             $excel_sheet->write($resource_name_row,$cols_output++,
                   1233:                                 'parts correct',
1.85      matthew  1234:                                 $format->{'bold'});
1.87      matthew  1235:         } elsif ($chosen_output->{'sequence_sum'}) {
                   1236:             if ($chosen_output->{'correct'}) {
                   1237:                 # Only reporting the number correct, so do not call it score
                   1238:                 $excel_sheet->write($resource_name_row,$cols_output++,
                   1239:                                     'sum',
                   1240:                                     $format->{'bold'});
                   1241:             } else {
                   1242:                 $excel_sheet->write($resource_name_row,$cols_output++,
                   1243:                                     'score',
                   1244:                                     $format->{'bold'});
                   1245:             }
1.32      matthew  1246:         }
1.79      matthew  1247:         #
                   1248:         $total_formula_string.='+'.
                   1249:             &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1.90      matthew  1250:             ($first_data_row,$cols_output-1);
1.87      matthew  1251:         if ($chosen_output->{'sequence_max'}) {
1.101     matthew  1252:             $excel_sheet->write($resource_name_row,$cols_output,
1.87      matthew  1253:                                 'maximum',
                   1254:                                 $format->{'bold'});
1.115     matthew  1255:             $formula_data{$symb}->{'Excel:maxcell'} = 
1.101     matthew  1256:                 &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
                   1257:                 ($first_data_row,$cols_output);
1.115     matthew  1258:             $formula_data{$symb}->{'Excel:maxcol'}=$cols_output;
1.101     matthew  1259:             $maximum_formula_string.='+'.
                   1260:                 &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
                   1261:                 ($first_data_row,$cols_output);
                   1262:             $cols_output++;
                   1263: 
1.87      matthew  1264:         }
                   1265:     }
                   1266:     if ($chosen_output->{'grand_total'}) {
                   1267:         $excel_sheet->write($resource_name_row,$cols_output++,'Total',
1.85      matthew  1268:                             $format->{'bold'});
1.32      matthew  1269:     }
1.101     matthew  1270:     if ($chosen_output->{'grand_maximum'}) {
                   1271:         $excel_sheet->write($resource_name_row,$cols_output++,'Max. Total',
                   1272:                             $format->{'bold'});
                   1273:     }
1.76      matthew  1274:     $total_formula = $excel_sheet->store_formula($total_formula_string);
1.101     matthew  1275:     $maximum_formula = $excel_sheet->store_formula($maximum_formula_string);
1.90      matthew  1276:     ##############################################
1.87      matthew  1277:     # Output a row for MAX, if appropriate
1.90      matthew  1278:     ##############################################
                   1279:     if ($chosen_output->{'maximum_row'}) {
1.87      matthew  1280:         $cols_output = 0;
                   1281:         foreach my $field (&get_student_fields_to_show()) {
                   1282:             if ($field eq 'username' || $field eq 'fullname' || 
                   1283:                 $field eq 'id') {
                   1284:                 $excel_sheet->write($maximum_data_row,$cols_output++,'Maximum',
                   1285:                                     $format->{'bold'});
                   1286:             } else {
                   1287:                 $excel_sheet->write($maximum_data_row,$cols_output++,'');
                   1288:             }
1.54      matthew  1289:         }
1.87      matthew  1290:         #
                   1291:         # Add the maximums for each sequence or assessment
                   1292:         my %total_cell_translation;
1.101     matthew  1293:         my %maximum_cell_translation;
1.115     matthew  1294:         foreach my $seq (@sequences) {
                   1295:             my $symb = $seq->symb;
                   1296:             $cols_output=$formula_data{$symb}->{'Excel:startcol'};
                   1297:             $total_cell_translation{$formula_data{$symb}->{'Excel:scorecell'}}=
1.87      matthew  1298:                 &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1.115     matthew  1299:                 ($maximum_data_row,$formula_data{$symb}->{'Excel:scorecol'});
                   1300:             $maximum_cell_translation{$formula_data{$symb}->{'Excel:maxcell'}}=
1.101     matthew  1301:                 &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1.115     matthew  1302:                 ($maximum_data_row,$formula_data{$symb}->{'Excel:maxcol'});
1.87      matthew  1303:             my $weight;
                   1304:             my $max = 0;
1.115     matthew  1305:             foreach my $resource (&get_resources($navmap,$seq)) {
                   1306:                 foreach my $part (@{$resource->parts}){
1.87      matthew  1307:                     $weight = 1;
                   1308:                     if ($chosen_output->{'scores'}) {
                   1309:                         $weight = &Apache::lonnet::EXT
1.128     bowersj2 1310:                             ('resource.'.$part.'.weight',$resource->symb,
1.87      matthew  1311:                              undef,undef,undef);
                   1312:                         if (!defined($weight) || ($weight eq '')) { 
                   1313:                             $weight=1;
                   1314:                         }
                   1315:                     }
                   1316:                     if ($chosen_output->{'scores'} &&
                   1317:                         $chosen_output->{'every_problem'}) {
                   1318:                         $excel_sheet->write($maximum_data_row,$cols_output++,
                   1319:                                             $weight);
1.54      matthew  1320:                     }
1.87      matthew  1321:                     $max += $weight;
1.54      matthew  1322:                 }
1.87      matthew  1323:             } 
                   1324:             #
                   1325:             if ($chosen_output->{'sequence_sum'} && 
                   1326:                 $chosen_output->{'every_problem'}) {
1.110     albertel 1327: 		my %replaceCells=
1.115     matthew  1328: 		    ('^'.$formula_data{$symb}->{'Excel:startcell'}.':'.
                   1329: 		         $formula_data{$symb}->{'Excel:endcell'}.'$' =>
                   1330: 		     &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell($maximum_data_row,$formula_data{$symb}->{'Excel:startcol'}).':'.
                   1331: 		     &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell($maximum_data_row,$formula_data{$symb}->{'Excel:endcol'}));
1.87      matthew  1332:                 $excel_sheet->repeat_formula($maximum_data_row,$cols_output++,
1.115     matthew  1333:                                              $formula_data{$symb}->{'Excel:sum'},undef,
1.127     bowersj2 1334: 					     %replaceCells, %replaceCells);
1.110     albertel 1335: 			
1.87      matthew  1336:             } elsif ($chosen_output->{'sequence_sum'}) {
                   1337:                 $excel_sheet->write($maximum_data_row,$cols_output++,$max);
                   1338:             }
                   1339:             if ($chosen_output->{'sequence_max'}) {
                   1340:                 $excel_sheet->write($maximum_data_row,$cols_output++,$max);
1.45      matthew  1341:             }
1.87      matthew  1342:             #
1.45      matthew  1343:         }
1.87      matthew  1344:         if ($chosen_output->{'grand_total'}) {
1.86      matthew  1345:             $excel_sheet->repeat_formula($maximum_data_row,$cols_output++,
1.87      matthew  1346:                                          $total_formula,undef,
                   1347:                                          %total_cell_translation);
1.79      matthew  1348:         }
1.101     matthew  1349:         if ($chosen_output->{'grand_maximum'}) {
                   1350:             $excel_sheet->repeat_formula($maximum_data_row,$cols_output++,
                   1351:                                          $maximum_formula,undef,
1.107     matthew  1352:                                          %maximum_cell_translation);
1.101     matthew  1353:         }
1.90      matthew  1354:     } # End of MAXIMUM row output  if ($chosen_output->{'maximum_row'}) {
1.86      matthew  1355:     $rows_output = $first_data_row;
1.90      matthew  1356:     ##############################################
                   1357:     # Output summary table, which actually is above the sequence name row.
                   1358:     ##############################################
                   1359:     if ($chosen_output->{'summary_table'}) {
                   1360:         $cols_output = 0;
                   1361:         $excel_sheet->write($summary_header_row,$cols_output++,
                   1362:                             'Summary Table',$format->{'bold'});
                   1363:         if ($chosen_output->{'maximum_row'}) {
                   1364:             $excel_sheet->write($summary_header_row,$cols_output++,
                   1365:                                 'Maximum',$format->{'bold'});
                   1366:         }
                   1367:         $excel_sheet->write($summary_header_row,$cols_output++,
                   1368:                             'Average',$format->{'bold'});
                   1369:         $excel_sheet->write($summary_header_row,$cols_output++,
                   1370:                             'Median',$format->{'bold'});
                   1371:         $excel_sheet->write($summary_header_row,$cols_output++,
                   1372:                             'Std Dev',$format->{'bold'});
                   1373:         my $row = $summary_header_row+1;
1.115     matthew  1374:         foreach my $seq (@sequences) {
                   1375:             my $symb = $seq->symb;
1.90      matthew  1376:             $cols_output = 0;
                   1377:             $excel_sheet->write($row,$cols_output++,
1.115     matthew  1378:                                 $seq->compTitle,
1.90      matthew  1379:                                 $format->{'bold'});
                   1380:             if ($chosen_output->{'maximum_row'}) {
                   1381:                 $excel_sheet->write
                   1382:                     ($row,$cols_output++,
                   1383:                      '='.
                   1384:                      &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1.115     matthew  1385:                      ($maximum_data_row,$formula_data{$symb}->{'Excel:scorecol'})
1.90      matthew  1386:                      );
                   1387:             }
                   1388:             my $range = 
                   1389:                 &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1.115     matthew  1390:                 ($first_data_row,$formula_data{$symb}->{'Excel:scorecol'}).
1.90      matthew  1391:                 ':'.
                   1392:                 &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1.115     matthew  1393:                 ($first_data_row+$num_students-1,$formula_data{$symb}->{'Excel:scorecol'});
1.90      matthew  1394:             $excel_sheet->write($row,$cols_output++,
                   1395:                                 '=AVERAGE('.$range.')');
                   1396:             $excel_sheet->write($row,$cols_output++,
                   1397:                                 '=MEDIAN('.$range.')');
                   1398:             $excel_sheet->write($row,$cols_output++,
                   1399:                                 '=STDEV('.$range.')');
                   1400:             $row++;
                   1401:         }
                   1402:     }
                   1403:     ##############################################
                   1404:     #   Take care of non-excel initialization
                   1405:     ##############################################
1.32      matthew  1406:     #
                   1407:     # Let the user know what we are doing
                   1408:     my $studentcount = scalar(@Apache::lonstatistics::Students); 
1.121     albertel 1409:     if ($env{'form.SelectedStudent'}) {
1.85      matthew  1410:         $studentcount = '1';
                   1411:     }
                   1412:     if ($studentcount > 1) {
                   1413:         $r->print('<h1>'.&mt('Compiling Excel spreadsheet for [_1] students',
                   1414:                              $studentcount)."</h1>\n");
                   1415:     } else {
                   1416:         $r->print('<h1>'.
                   1417:                   &mt('Compiling Excel spreadsheet for 1 student').
                   1418:                   "</h1>\n");
                   1419:     }
1.32      matthew  1420:     $r->rflush();
1.31      matthew  1421:     #
1.36      matthew  1422:     # Initialize progress window
                   1423:     %prog_state=&Apache::lonhtmlcommon::Create_PrgWin
                   1424:         ($r,'Excel File Compilation Status',
1.108     matthew  1425:          'Excel File Compilation Progress', $studentcount,
                   1426:          'inline',undef,'Statistics','stats_status');
1.36      matthew  1427:     #
1.62      matthew  1428:     &Apache::lonhtmlcommon::Update_PrgWin($r,\%prog_state,
                   1429:                                           'Processing first student');
1.31      matthew  1430:     return;
                   1431: }
                   1432: 
                   1433: sub excel_outputstudent {
                   1434:     my ($r,$student) = @_;
1.115     matthew  1435:     if ($request_aborted || ! defined($navmap) || ! defined($excel_sheet)) {
                   1436:         return;
                   1437:     }
1.32      matthew  1438:     $cols_output=0;
                   1439:     #
                   1440:     # Write out student data
                   1441:     my @to_show = &get_student_fields_to_show();
                   1442:     foreach my $field (@to_show) {
1.103     matthew  1443:         my $value = $student->{$field};
                   1444:         if ($field eq 'comments') {
1.136     albertel 1445:             $value = &Apache::lonmsgdisplay::retrieve_instructor_comments
1.103     matthew  1446:                 ($student->{'username'},$student->{'domain'});
                   1447:         }
                   1448:         $excel_sheet->write($rows_output,$cols_output++,$value);
1.32      matthew  1449:     }
                   1450:     #
                   1451:     # Get student assessment data
                   1452:     my %StudentsData;
                   1453:     my @tmp = &Apache::loncoursedata::get_current_state($student->{'username'},
                   1454:                                                         $student->{'domain'},
                   1455:                                                         undef,
1.121     albertel 1456:                                                    $env{'request.course.id'});
1.32      matthew  1457:     if ((scalar @tmp > 0) && ($tmp[0] !~ /^error:/)) {
                   1458:         %StudentsData = @tmp;
                   1459:     }
                   1460:     #
                   1461:     # Write out sequence scores and totals data
1.76      matthew  1462:     my %total_cell_translation;
1.101     matthew  1463:     my %maximum_cell_translation;
1.115     matthew  1464:     foreach my $seq (@sequences) {
                   1465:         my $symb = $seq->symb;
                   1466:         $cols_output = $formula_data{$symb}->{'Excel:startcol'};
1.76      matthew  1467:         # Keep track of cells to translate in total cell
1.115     matthew  1468:         $total_cell_translation{$formula_data{$symb}->{'Excel:scorecell'}} = 
1.76      matthew  1469:             &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1.115     matthew  1470:                         ($rows_output,$formula_data{$symb}->{'Excel:scorecol'});
1.107     matthew  1471:         # and maximum cell
1.115     matthew  1472:         $maximum_cell_translation{$formula_data{$symb}->{'Excel:maxcell'}} = 
1.107     matthew  1473:             &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1.115     matthew  1474:             ($rows_output,$formula_data{$symb}->{'Excel:maxcol'});
1.76      matthew  1475:         #
1.54      matthew  1476:         my ($performance,$performance_length,$score,$seq_max,$rawdata);
1.87      matthew  1477:         if ($chosen_output->{'tries'} || $chosen_output->{'correct'}){
1.54      matthew  1478:             ($performance,$performance_length,$score,$seq_max,$rawdata) =
1.115     matthew  1479:                 &student_tries_on_sequence($student,\%StudentsData,
                   1480:                                            $navmap,$seq,'no');
1.54      matthew  1481:         } else {
                   1482:             ($performance,$performance_length,$score,$seq_max,$rawdata) =
1.115     matthew  1483:                 &student_performance_on_sequence($student,\%StudentsData,
1.129     bowersj2 1484:                                                  $navmap,$seq,'no',
                   1485:                                                  $chosen_output->{ignore_weight});
1.87      matthew  1486:         } 
                   1487:         if ($chosen_output->{'every_problem'}) {
                   1488:             if ($chosen_output->{'correct'}) {
                   1489:                 # only indiciate if each item is correct or not
                   1490:                 foreach my $value (@$rawdata) {
1.126     bowersj2 1491:                     # positive means correct, 0 or negative means
                   1492:                     # incorrect
                   1493:                     $value = $value > 0 ? 1 : 0;
1.87      matthew  1494:                     $excel_sheet->write($rows_output,$cols_output++,$value);
                   1495:                 }
                   1496:             } else {
                   1497:                 foreach my $value (@$rawdata) {
1.97      matthew  1498:                     if ($score eq ' ' || !defined($value)) {
                   1499:                         $cols_output++;
                   1500:                     } else {                        
                   1501:                         $excel_sheet->write($rows_output,$cols_output++,
                   1502:                                             $value);
                   1503:                     }
1.87      matthew  1504:                 }
                   1505:             }
1.54      matthew  1506:         }
1.87      matthew  1507:         if ($chosen_output->{'sequence_sum'} && 
                   1508:             $chosen_output->{'every_problem'}) {
1.76      matthew  1509:             # Write a formula for the sum of this sequence
1.110     albertel 1510:             my %replaceCells=
1.115     matthew  1511: 		('^'.$formula_data{$symb}->{'Excel:startcell'}.':'.$formula_data{$symb}->{'Excel:endcell'}.'$'
1.110     albertel 1512: 		 => 
1.115     matthew  1513: 		 &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell($rows_output,$formula_data{$symb}->{'Excel:startcol'}).':'.
                   1514: 		 &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell($rows_output,$formula_data{$symb}->{'Excel:endcol'})
1.110     albertel 1515: 		 );
                   1516:             # The undef is for the format	    
                   1517: 	    $excel_sheet->repeat_formula($rows_output,$cols_output++,
1.115     matthew  1518: 					 $formula_data{$symb}->{'Excel:sum'},undef,
1.127     bowersj2 1519: 					 %replaceCells, %replaceCells);
1.87      matthew  1520:         } elsif ($chosen_output->{'sequence_sum'}) {
1.97      matthew  1521:             if ($score eq ' ') {
                   1522:                 $cols_output++;
                   1523:             } else {
                   1524:                 $excel_sheet->write($rows_output,$cols_output++,$score);
                   1525:             }
1.32      matthew  1526:         }
1.87      matthew  1527:         if ($chosen_output->{'sequence_max'}) {
1.32      matthew  1528:             $excel_sheet->write($rows_output,$cols_output++,$seq_max);
                   1529:         }
                   1530:     }
1.76      matthew  1531:     #
1.87      matthew  1532:     if ($chosen_output->{'grand_total'}) {
                   1533:         $excel_sheet->repeat_formula($rows_output,$cols_output++,
                   1534:                                      $total_formula,undef,
                   1535:                                      %total_cell_translation);
                   1536:     }
1.101     matthew  1537:     if ($chosen_output->{'grand_maximum'}) {
                   1538:         $excel_sheet->repeat_formula($rows_output,$cols_output++,
                   1539:                                      $maximum_formula,undef,
1.107     matthew  1540:                                      %maximum_cell_translation);
1.101     matthew  1541:     }
1.32      matthew  1542:     #
                   1543:     # Bookkeeping
                   1544:     $rows_output++; 
                   1545:     $cols_output=0;
                   1546:     #
1.36      matthew  1547:     # Update the progress window
                   1548:     &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,'last student');
1.32      matthew  1549:     return;
1.31      matthew  1550: }
                   1551: 
                   1552: sub excel_finish {
                   1553:     my ($r) = @_;
1.115     matthew  1554:     if ($request_aborted || ! defined($navmap) || ! defined($excel_sheet)) {
1.125     albertel 1555: 	&excel_cleanup();
1.115     matthew  1556:         return;
                   1557:     }
1.32      matthew  1558:     #
                   1559:     # Write the excel file
                   1560:     $excel_workbook->close();
                   1561:     #
1.36      matthew  1562:     # Close the progress window
                   1563:     &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
                   1564:     #
1.32      matthew  1565:     # Tell the user where to get their excel file
1.36      matthew  1566:     $r->print('<br />'.
1.32      matthew  1567:               '<a href="'.$filename.'">Your Excel spreadsheet.</a>'."\n");
                   1568:     $r->rflush();
1.125     albertel 1569:     &excel_cleanup();
1.32      matthew  1570:     return;
1.31      matthew  1571: }
                   1572: 
                   1573: }
1.30      matthew  1574: #######################################################
                   1575: #######################################################
                   1576: 
                   1577: =pod
                   1578: 
1.31      matthew  1579: =head2 CSV output routines
                   1580: 
                   1581: =item &csv_initialize($r)
                   1582: 
                   1583: =item &csv_outputstudent($r,$student)
                   1584: 
                   1585: =item &csv_finish($r)
1.30      matthew  1586: 
                   1587: =cut
                   1588: 
                   1589: #######################################################
                   1590: #######################################################
1.31      matthew  1591: {
                   1592: 
1.37      matthew  1593: my $outputfile;
                   1594: my $filename;
1.54      matthew  1595: my $request_aborted;
1.37      matthew  1596: my %prog_state; # progress window state
1.115     matthew  1597: my $navmap;
                   1598: my @sequences;
1.37      matthew  1599: 
1.125     albertel 1600: sub csv_cleanup {
1.66      matthew  1601:     undef($outputfile);
                   1602:     undef($filename);
                   1603:     undef($request_aborted);
1.37      matthew  1604:     undef(%prog_state);
                   1605:     #
1.115     matthew  1606:     undef($navmap);
                   1607:     undef(@sequences);
1.125     albertel 1608: }
                   1609: 
                   1610: sub csv_initialize{
                   1611:     my ($r) = @_;
                   1612: 
                   1613:     &csv_cleanup();
1.115     matthew  1614:     ($navmap,@sequences) = 
                   1615:         &Apache::lonstatistics::selected_sequences_with_assessments();
                   1616:     if (! ref($navmap)) {
                   1617:         # Unable to get data, so bail out
                   1618:         $r->print("<h3>".
                   1619:                   &mt('Unable to retrieve course information.').
                   1620:                   '</h3>');
                   1621:     }
                   1622:     #
1.54      matthew  1623:     # Deal with unimplemented requests
                   1624:     $request_aborted = undef;
1.87      matthew  1625:     if ($chosen_output->{'base'} =~ /final table/) {
1.54      matthew  1626:         $r->print(<<END);
                   1627: <h2>Unable to Complete Request</h2>
                   1628: <p>
                   1629: The <b>Summary Table (Scores)</b> option is not available for non-HTML output.
                   1630: </p>
                   1631: END
                   1632:        $request_aborted = 1;
                   1633:     }
                   1634:     return if ($request_aborted);
1.87      matthew  1635:     #
                   1636:     # Initialize progress window
                   1637:     my $studentcount = scalar(@Apache::lonstatistics::Students);
                   1638:     %prog_state=&Apache::lonhtmlcommon::Create_PrgWin
                   1639:         ($r,'CSV File Compilation Status',
1.108     matthew  1640:          'CSV File Compilation Progress', $studentcount,
                   1641:          'inline',undef,'Statistics','stats_status');
1.54      matthew  1642:     #
1.37      matthew  1643:     # Open a file
1.120     matthew  1644:     ($outputfile,$filename) = &Apache::loncommon::create_text_file($r,'csv');
                   1645:     if (! defined($outputfile)) { return ''; }
1.38      matthew  1646:     #
                   1647:     # Datestamp
1.121     albertel 1648:     my $description = $env{'course.'.$env{'request.course.id'}.'.description'};
1.38      matthew  1649:     print $outputfile '"'.&Apache::loncommon::csv_translate($description).'",'.
                   1650:         '"'.&Apache::loncommon::csv_translate(scalar(localtime(time))).'"'.
                   1651:             "\n";
1.120     matthew  1652:     print $outputfile '"'.
                   1653:         &Apache::loncommon::csv_translate
                   1654:         (&Apache::lonstatistics::section_and_enrollment_description()).
                   1655:         '"'."\n";
1.109     matthew  1656:     foreach my $item ('shortdesc','non_html_notes') {
                   1657:         next if (! exists($chosen_output->{$item}));
                   1658:         print $outputfile 
                   1659:             '"'.&Apache::loncommon::csv_translate($chosen_output->{$item}).'"'.
                   1660:             "\n";
                   1661:     }
1.37      matthew  1662:     #
                   1663:     # Print out the headings
1.87      matthew  1664:     my $sequence_row = '';
                   1665:     my $resource_row = undef;
1.37      matthew  1666:     foreach my $field (&get_student_fields_to_show()) {
1.87      matthew  1667:         $sequence_row .='"",';
                   1668:         $resource_row .= '"'.&Apache::loncommon::csv_translate($field).'",';
1.37      matthew  1669:     }
1.115     matthew  1670:     foreach my $seq (@sequences) {
1.87      matthew  1671:         $sequence_row .= '"'.
1.115     matthew  1672:             &Apache::loncommon::csv_translate($seq->compTitle).'",';
1.87      matthew  1673:         my $count = 0;
                   1674:         if ($chosen_output->{'every_problem'}) {
1.116     matthew  1675:             foreach my $res (&get_resources($navmap,$seq)) {
1.115     matthew  1676:                 if (scalar(@{$res->parts}) < 1) {
1.87      matthew  1677:                     next;
                   1678:                 }
1.115     matthew  1679:                 foreach my $part (@{$res->parts}) {
1.87      matthew  1680:                     $resource_row .= '"'.
1.115     matthew  1681:                         &Apache::loncommon::csv_translate
                   1682:                         ($res->compTitle.', Part '.$res->part_display($part)).'",';
1.87      matthew  1683:                     $count++;
1.53      matthew  1684:                 }
                   1685:             }
1.37      matthew  1686:         }
1.87      matthew  1687:         $sequence_row.='"",'x$count;
                   1688:         if ($chosen_output->{'sequence_sum'}) {
                   1689:             if($chosen_output->{'correct'}) {
                   1690:                 $resource_row .= '"sum",';
                   1691:             } else {
                   1692:                 $resource_row .= '"score",';
                   1693:             }
                   1694:         }
                   1695:         if ($chosen_output->{'sequence_max'}) {
                   1696:             $sequence_row.= '"",';
                   1697:             $resource_row .= '"maximum possible",';
                   1698:         }
1.37      matthew  1699:     }
1.87      matthew  1700:     if ($chosen_output->{'grand_total'}) {
                   1701:         $sequence_row.= '"",';
                   1702:         $resource_row.= '"Total",';
                   1703:     } 
1.101     matthew  1704:     if ($chosen_output->{'grand_maximum'}) {
                   1705:         $sequence_row.= '"",';
                   1706:         $resource_row.= '"Maximum",';
                   1707:     } 
1.87      matthew  1708:     chomp($sequence_row);
                   1709:     chomp($resource_row);
                   1710:     print $outputfile $sequence_row."\n";
                   1711:     print $outputfile $resource_row."\n";
1.31      matthew  1712:     return;
                   1713: }
                   1714: 
                   1715: sub csv_outputstudent {
                   1716:     my ($r,$student) = @_;
1.115     matthew  1717:     if ($request_aborted || ! defined($navmap) || ! defined($outputfile)) {
                   1718:         return;
                   1719:     }
1.37      matthew  1720:     my $Str = '';
                   1721:     #
                   1722:     # Output student fields
                   1723:     my @to_show = &get_student_fields_to_show();
                   1724:     foreach my $field (@to_show) {
1.103     matthew  1725:         my $value = $student->{$field};
                   1726:         if ($field eq 'comments') {
1.136     albertel 1727:             $value = &Apache::lonmsgdisplay::retrieve_instructor_comments
1.103     matthew  1728:                 ($student->{'username'},$student->{'domain'});
                   1729:         }        
                   1730:         $Str .= '"'.&Apache::loncommon::csv_translate($value).'",';
1.37      matthew  1731:     }
                   1732:     #
                   1733:     # Get student assessment data
                   1734:     my %StudentsData;
                   1735:     my @tmp = &Apache::loncoursedata::get_current_state($student->{'username'},
                   1736:                                                         $student->{'domain'},
                   1737:                                                         undef,
1.121     albertel 1738:                                                    $env{'request.course.id'});
1.37      matthew  1739:     if ((scalar @tmp > 0) && ($tmp[0] !~ /^error:/)) {
                   1740:         %StudentsData = @tmp;
                   1741:     }
                   1742:     #
                   1743:     # Output performance data
1.87      matthew  1744:     my $total = 0;
1.101     matthew  1745:     my $maximum = 0;
1.115     matthew  1746:     foreach my $seq (@sequences) {
1.54      matthew  1747:         my ($performance,$performance_length,$score,$seq_max,$rawdata);
1.87      matthew  1748:         if ($chosen_output->{'tries'}){
1.54      matthew  1749:             ($performance,$performance_length,$score,$seq_max,$rawdata) =
1.115     matthew  1750:                 &student_tries_on_sequence($student,\%StudentsData,
                   1751:                                            $navmap,$seq,'no');
1.54      matthew  1752:         } else {
                   1753:             ($performance,$performance_length,$score,$seq_max,$rawdata) =
1.115     matthew  1754:                 &student_performance_on_sequence($student,\%StudentsData,
1.129     bowersj2 1755:                                                  $navmap,$seq,'no',
                   1756:                                                  $chosen_output->{ignore_weight});
1.54      matthew  1757:         }
1.87      matthew  1758:         if ($chosen_output->{'every_problem'}) {
                   1759:             if ($chosen_output->{'correct'}) {
                   1760:                 $score = 0;
                   1761:                 # Deal with number of parts correct data
                   1762:                 $Str .= '"'.join('","',( map { if ($_>0) { 
                   1763:                                                    $score += 1;
                   1764:                                                    1; 
                   1765:                                                } else { 
                   1766:                                                    0; 
                   1767:                                                }
                   1768:                                              } @$rawdata)).'",';
                   1769:             } else {
                   1770:                 $Str .= '"'.join('","',(@$rawdata)).'",';
                   1771:             }
                   1772:         }
                   1773:         if ($chosen_output->{'sequence_sum'}) {
1.37      matthew  1774:             $Str .= '"'.$score.'",';
1.87      matthew  1775:         } 
                   1776:         if ($chosen_output->{'sequence_max'}) {
                   1777:             $Str .= '"'.$seq_max.'",';
1.37      matthew  1778:         }
1.87      matthew  1779:         $total+=$score;
1.101     matthew  1780:         $maximum += $seq_max;
1.87      matthew  1781:     }
                   1782:     if ($chosen_output->{'grand_total'}) {
                   1783:         $Str .= '"'.$total.'",';
1.101     matthew  1784:     }
                   1785:     if ($chosen_output->{'grand_maximum'}) {
                   1786:         $Str .= '"'.$maximum.'",';
1.37      matthew  1787:     }
                   1788:     chop($Str);
                   1789:     $Str .= "\n";
                   1790:     print $outputfile $Str;
                   1791:     #
                   1792:     # Update the progress window
                   1793:     &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,'last student');
                   1794:     return;
1.31      matthew  1795: }
                   1796: 
                   1797: sub csv_finish {
                   1798:     my ($r) = @_;
1.115     matthew  1799:     if ($request_aborted || ! defined($navmap) || ! defined($outputfile)) {
1.125     albertel 1800: 	&csv_cleanup();
1.115     matthew  1801:         return;
                   1802:     }
1.37      matthew  1803:     close($outputfile);
                   1804:     #
                   1805:     # Close the progress window
                   1806:     &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
                   1807:     #
                   1808:     # Tell the user where to get their csv file
                   1809:     $r->print('<br />'.
1.95      matthew  1810:               '<a href="'.$filename.'">'.&mt('Your csv file.').'</a>'."\n");
1.37      matthew  1811:     $r->rflush();
1.125     albertel 1812:     &csv_cleanup();
1.37      matthew  1813:     return;
                   1814:     
1.31      matthew  1815: }
1.2       stredwic 1816: 
                   1817: }
                   1818: 
1.132     bowersj2 1819: # This function will return an HTML string including a star, with
                   1820: # a mouseover popup showing the "real" value. An optional second
                   1821: # argument lets you show something other than a star.
                   1822: sub show_star {
                   1823:     my $popup = shift;
                   1824:     my $symbol = shift || '*';
                   1825:     # Escape the popup for JS.
                   1826:     $popup =~ s/([^-a-zA-Z0-9:;,._ ()|!\/?=&*])/'\\' . sprintf("%lo", ord($1))/ge;
                   1827:     
                   1828:     return "<span onmouseover='popup_score(this, \"$popup\");return false;' onmouseout='popdown_score();return false;' style='border: 1px solid #339933; margin: -1px;'>$symbol</span>";
                   1829: }
                   1830: 
1.28      matthew  1831: #######################################################
                   1832: #######################################################
                   1833: 
1.2       stredwic 1834: =pod
                   1835: 
1.54      matthew  1836: =item &StudentTriesOnSequence()
1.2       stredwic 1837: 
1.30      matthew  1838: Inputs:
1.2       stredwic 1839: 
                   1840: =over 4
                   1841: 
1.30      matthew  1842: =item $student
1.28      matthew  1843: 
1.30      matthew  1844: =item $studentdata Hash ref to all student data
1.2       stredwic 1845: 
1.30      matthew  1846: =item $seq Hash ref, the sequence we are working on
1.2       stredwic 1847: 
1.30      matthew  1848: =item $links if defined we will output links to each resource.
1.2       stredwic 1849: 
1.28      matthew  1850: =back
1.2       stredwic 1851: 
                   1852: =cut
1.1       stredwic 1853: 
1.28      matthew  1854: #######################################################
                   1855: #######################################################
1.112     matthew  1856: sub student_tries_on_sequence {
                   1857:     my ($student,$studentdata,$navmap,$seq,$links) = @_;
1.31      matthew  1858:     $links = 'no' if (! defined($links));
1.1       stredwic 1859:     my $Str = '';
1.30      matthew  1860:     my ($sum,$max) = (0,0);
1.51      matthew  1861:     my $performance_length = 0;
1.54      matthew  1862:     my @TriesData = ();
                   1863:     my $tries;
1.97      matthew  1864:     my $hasdata = 0; # flag - true if the student has any data on the sequence
1.115     matthew  1865:     foreach my $resource (&get_resources($navmap,$seq)) {
1.112     matthew  1866:         my $resource_data = $studentdata->{$resource->symb};
1.30      matthew  1867:         my $value = '';
1.112     matthew  1868:         foreach my $partnum (@{$resource->parts()}) {
1.54      matthew  1869:             $tries = undef;
1.30      matthew  1870:             $max++;
1.51      matthew  1871:             $performance_length++;
1.30      matthew  1872:             my $symbol = ' '; # default to space
                   1873:             #
1.78      matthew  1874:             my $awarded = 0;
                   1875:             if (exists($resource_data->{'resource.'.$partnum.'.awarded'})) {
                   1876:                 $awarded = $resource_data->{'resource.'.$partnum.'.awarded'};
                   1877:                 $awarded = 0 if (! $awarded);
                   1878:             }
                   1879:             #
                   1880:             my $status = '';
1.30      matthew  1881:             if (exists($resource_data->{'resource.'.$partnum.'.solved'})) {
1.78      matthew  1882:                 $status = $resource_data->{'resource.'.$partnum.'.solved'};
                   1883:             }
                   1884:             #
                   1885:             my $tries = 0;
                   1886:             if(exists($resource_data->{'resource.'.$partnum.'.tries'})) {
                   1887:                 $tries = $resource_data->{'resource.'.$partnum.'.tries'};
1.97      matthew  1888:                 $hasdata =1;
1.78      matthew  1889:             }
                   1890:             #
                   1891:             if ($awarded > 0) {
                   1892:                 # The student has gotten the problem correct to some degree
                   1893:                 if ($status eq 'excused') {
                   1894:                     $symbol = 'x';
                   1895:                     $max--;
1.137   ! albertel 1896:                 } elsif ($status eq 'correct_by_override' && !$resource->is_task()) {
1.30      matthew  1897:                     $symbol = '+';
                   1898:                     $sum++;
1.78      matthew  1899:                 } elsif ($tries > 0) {
1.54      matthew  1900:                     if ($tries > 9) {
1.132     bowersj2 1901:                         $symbol = show_star($tries);
1.78      matthew  1902:                     } else {
1.54      matthew  1903:                         $symbol = $tries;
1.30      matthew  1904:                     }
                   1905:                     $sum++;
                   1906:                 } else {
1.78      matthew  1907:                     $symbol = '+';
                   1908:                     $sum++;
1.2       stredwic 1909:                 }
1.30      matthew  1910:             } else {
1.78      matthew  1911:                 # The student has the problem incorrect or it is ungraded
                   1912:                 if ($status eq 'excused') {
                   1913:                     $symbol = 'x';
                   1914:                     $max--;
                   1915:                 } elsif ($status eq 'incorrect_by_override') {
                   1916:                     $symbol = '-';
                   1917:                 } elsif ($status eq 'ungraded_attempted') {
1.124     matthew  1918:                     $symbol = 'u';
1.78      matthew  1919:                 } elsif ($status eq 'incorrect_attempted' ||
                   1920:                          $tries > 0)  {
1.30      matthew  1921:                     $symbol = '.';
                   1922:                 } else {
1.78      matthew  1923:                     # Problem is wrong and has not been attempted.
                   1924:                     $symbol=' ';
1.18      matthew  1925:                 }
1.2       stredwic 1926:             }
1.54      matthew  1927:             #
1.109     matthew  1928:             if (! defined($tries)) {
                   1929:                 $tries = 0;
                   1930:             }
                   1931:             if ($status =~ /^(incorrect|ungraded)/) {
                   1932:                 # Bug 3390: show '-' for tries on incorrect problems 
                   1933:                 # (csv & excel only)
                   1934:                 push(@TriesData,-$tries);
                   1935:             } else {
                   1936:                 push (@TriesData,$tries);
1.54      matthew  1937:             }
1.30      matthew  1938:             #
1.47      matthew  1939:             if ( ($links eq 'yes' && $symbol ne ' ') ||
                   1940:                  ($links eq 'all')) {
1.49      matthew  1941:                 if (length($symbol) > 1) {
                   1942:                     &Apache::lonnet::logthis('length of symbol "'.$symbol.'" > 1');
                   1943:                 }
1.134     bowersj2 1944:                 my $link = '/adm/grades'.
1.112     matthew  1945:                     '?symb='.&Apache::lonnet::escape($resource->symb).
1.30      matthew  1946:                         '&student='.$student->{'username'}.
1.64      albertel 1947:                             '&userdom='.$student->{'domain'}.
1.134     bowersj2 1948:                                 '&command=submission';
                   1949:                 $symbol = &link($symbol, $link);
1.30      matthew  1950:             }
                   1951:             $value .= $symbol;
1.2       stredwic 1952:         }
1.30      matthew  1953:         $Str .= $value;
1.17      minaeibi 1954:     }
1.112     matthew  1955:     if ($seq->randompick()) {
                   1956:         $max = $seq->randompick();
1.51      matthew  1957:     }
1.97      matthew  1958:     if (! $hasdata && $sum == 0) {
                   1959:         $sum = ' ';
                   1960:     }
1.54      matthew  1961:     return ($Str,$performance_length,$sum,$max,\@TriesData);
                   1962: }
                   1963: 
1.134     bowersj2 1964: =pod
                   1965: 
                   1966: =item &link
                   1967: 
                   1968: Inputs:
                   1969: 
                   1970: =over 4
                   1971: 
                   1972: =item $text
                   1973: 
                   1974: =item $target
                   1975: 
                   1976: =back
                   1977: 
                   1978: Takes the text and creates a link to the $text that honors
                   1979: the value of 'new window' if clicked on, but uses a real 
                   1980: 'href' so middle and right clicks still work.
                   1981: 
                   1982: $target and $text are assumed to be already correctly escaped; i.e., it
                   1983: can be dumped out directly into the output stream as-is.
                   1984: 
                   1985: =cut
                   1986: 
                   1987: sub link {
                   1988:     my ($text,$target) = @_;
                   1989:     return 
                   1990:         "<a href='$target' onclick=\"t=this.href;if(new_window)"
                   1991:         ."{window.open(t)}else{return void(window."
                   1992:         ."location=t)};return false;\">$text</a>";
                   1993: }
                   1994: 
1.54      matthew  1995: #######################################################
                   1996: #######################################################
                   1997: 
                   1998: =pod
                   1999: 
1.115     matthew  2000: =item &student_performance_on_sequence
1.54      matthew  2001: 
                   2002: Inputs:
                   2003: 
                   2004: =over 4
                   2005: 
                   2006: =item $student
                   2007: 
                   2008: =item $studentdata Hash ref to all student data
                   2009: 
                   2010: =item $seq Hash ref, the sequence we are working on
                   2011: 
                   2012: =item $links if defined we will output links to each resource.
                   2013: 
                   2014: =back
                   2015: 
                   2016: =cut
                   2017: 
                   2018: #######################################################
                   2019: #######################################################
1.112     matthew  2020: sub student_performance_on_sequence {
1.129     bowersj2 2021:     my ($student,$studentdata,$navmap,$seq,$links,$awarded_only) = @_;
1.54      matthew  2022:     $links = 'no' if (! defined($links));
                   2023:     my $Str = ''; # final result string
                   2024:     my ($score,$max) = (0,0);
                   2025:     my $performance_length = 0;
                   2026:     my $symbol;
                   2027:     my @ScoreData = ();
                   2028:     my $partscore;
1.97      matthew  2029:     my $hasdata = 0; # flag, 0 if there were no submissions on the sequence
1.115     matthew  2030:     foreach my $resource (&get_resources($navmap,$seq)) {
1.112     matthew  2031:         my $symb = $resource->symb;
                   2032:         my $resource_data = $studentdata->{$symb};
                   2033:         foreach my $part (@{$resource->parts()}) {
1.54      matthew  2034:             $partscore = undef;
1.129     bowersj2 2035:             my $weight;
                   2036:             if (!$awarded_only){
                   2037:                 $weight = &Apache::lonnet::EXT('resource.'.$part.'.weight',
                   2038:                                                $symb,
                   2039:                                                $student->{'domain'},
                   2040:                                                $student->{'username'},
                   2041:                                                $student->{'section'});
                   2042:             }
1.54      matthew  2043:             if (!defined($weight) || ($weight eq '')) { 
                   2044:                 $weight=1;
                   2045:             }
                   2046:             #
                   2047:             $max += $weight; # see the 'excused' branch below...
                   2048:             $performance_length++; # one character per part
                   2049:             $symbol = ' '; # default to space
                   2050:             #
1.97      matthew  2051:             my $awarded;
1.54      matthew  2052:             if (exists($resource_data->{'resource.'.$part.'.awarded'})) {
                   2053:                 $awarded = $resource_data->{'resource.'.$part.'.awarded'};
1.67      matthew  2054:                 $awarded = 0 if (! $awarded);
1.97      matthew  2055:                 $hasdata = 1;
1.54      matthew  2056:             }
                   2057:             #
1.131     albertel 2058:             $partscore = &Apache::grades::compute_points($weight,$awarded);
1.97      matthew  2059:             if (! defined($awarded)) {
                   2060:                 $partscore = undef;
                   2061:             }
1.54      matthew  2062:             $score += $partscore;
1.63      matthew  2063:             $symbol = $partscore; 
1.70      matthew  2064:             if (abs($symbol - sprintf("%.0f",$symbol)) < 0.001) {
                   2065:                 $symbol = sprintf("%.0f",$symbol);
                   2066:             }
1.54      matthew  2067:             if (length($symbol) > 1) {
1.132     bowersj2 2068:                 $symbol = show_star($symbol);
1.54      matthew  2069:             }
1.124     matthew  2070:             if (exists($resource_data->{'resource.'.$part.'.solved'}) &&
                   2071:                 $resource_data->{'resource.'.$part.'.solved'} ne '') {
1.54      matthew  2072:                 my $status = $resource_data->{'resource.'.$part.'.solved'};
                   2073:                 if ($status eq 'excused') {
                   2074:                     $symbol = 'x';
                   2075:                     $max -= $weight; # Do not count 'excused' problems.
1.124     matthew  2076:                 } elsif ($status eq 'ungraded_attempted') {
                   2077:                     $symbol = 'u';
1.54      matthew  2078:                 }
1.97      matthew  2079:                 $hasdata = 1;
1.124     matthew  2080:             } elsif ($resource_data->{'resource.'.$part.'.award'} eq 'DRAFT') {
                   2081:                 $symbol = 'd';
                   2082:                 $hasdata = 1;
1.111     matthew  2083:             } elsif (!exists($resource_data->{'resource.'.$part.'.awarded'})){
1.54      matthew  2084:                 # Unsolved.  Did they try?
                   2085:                 if (exists($resource_data->{'resource.'.$part.'.tries'})){
                   2086:                     $symbol = '.';
1.97      matthew  2087:                     $hasdata = 1;
1.54      matthew  2088:                 } else {
                   2089:                     $symbol = ' ';
                   2090:                 }
                   2091:             }
                   2092:             #
1.60      matthew  2093:             if (! defined($partscore)) {
                   2094:                 $partscore = $symbol;
                   2095:             }
                   2096:             push (@ScoreData,$partscore);
                   2097:             #
1.54      matthew  2098:             if ( ($links eq 'yes' && $symbol ne ' ') || ($links eq 'all')) {
1.134     bowersj2 2099:                 my $link = '/adm/grades' .
1.112     matthew  2100:                     '?symb='.&Apache::lonnet::escape($symb).
1.54      matthew  2101:                     '&student='.$student->{'username'}.
1.64      albertel 2102:                     '&userdom='.$student->{'domain'}.
1.134     bowersj2 2103:                     '&command=submission';
                   2104:                 $symbol = &link($symbol, $link);
1.54      matthew  2105:             }
1.60      matthew  2106:             $Str .= $symbol;
1.54      matthew  2107:         }
1.97      matthew  2108:     }
                   2109:     if (! $hasdata && $score == 0) {
                   2110:         $score = ' ';
1.54      matthew  2111:     }
                   2112:     return ($Str,$performance_length,$score,$max,\@ScoreData);
1.1       stredwic 2113: }
1.23      minaeibi 2114: 
1.28      matthew  2115: #######################################################
                   2116: #######################################################
1.23      minaeibi 2117: 
1.2       stredwic 2118: =pod
                   2119: 
                   2120: =item &CreateLegend()
                   2121: 
                   2122: This function returns a formatted string containing the legend for the
                   2123: chart.  The legend describes the symbols used to represent grades for
                   2124: problems.
                   2125: 
                   2126: =cut
                   2127: 
1.28      matthew  2128: #######################################################
                   2129: #######################################################
1.2       stredwic 2130: sub CreateLegend {
                   2131:     my $Str = "<p><pre>".
1.124     matthew  2132:               " digit score or number of tries to get correct ".
1.12      minaeibi 2133:               "   *  correct by student in more than 9 tries\n".
1.20      minaeibi 2134: 	      "   +  correct by hand grading or override\n".
1.12      minaeibi 2135:               "   -  incorrect by override\n".
                   2136: 	      "   .  incorrect attempted\n".
1.124     matthew  2137: 	      "   u  ungraded attempted\n".
                   2138:               "   d  draft answer saved but not submitted\n".
1.13      minaeibi 2139:               "      not attempted (blank field)\n".
1.12      minaeibi 2140: 	      "   x  excused".
1.17      minaeibi 2141:               "</pre><p>";
1.2       stredwic 2142:     return $Str;
                   2143: }
                   2144: 
1.28      matthew  2145: #######################################################
                   2146: #######################################################
                   2147: 
1.30      matthew  2148: =pod 
1.2       stredwic 2149: 
                   2150: =back
                   2151: 
                   2152: =cut
                   2153: 
1.28      matthew  2154: #######################################################
                   2155: #######################################################
1.2       stredwic 2156: 
1.28      matthew  2157: 1;
1.2       stredwic 2158: 
1.1       stredwic 2159: __END__

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