Annotation of loncom/interface/statistics/lonstudentassessment.pm, revision 1.76

1.1       stredwic    1: # The LearningOnline Network with CAPA
                      2: #
1.76    ! matthew     3: # $Id: lonstudentassessment.pm,v 1.75 2003/11/20 20:21:17 matthew Exp $
1.1       stredwic    4: #
                      5: # Copyright Michigan State University Board of Trustees
                      6: #
                      7: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
                      8: # LON-CAPA is free software; you can redistribute it and/or modify
                      9: # it under the terms of the GNU General Public License as published by
                     10: # the Free Software Foundation; either version 2 of the License, or
                     11: # (at your option) any later version.
                     12: #
                     13: # LON-CAPA is distributed in the hope that it will be useful,
                     14: # but WITHOUT ANY WARRANTY; without even the implied warranty of
                     15: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
                     16: # GNU General Public License for more details.
                     17: #
                     18: # You should have received a copy of the GNU General Public License
                     19: # along with LON-CAPA; if not, write to the Free Software
                     20: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
                     21: #
                     22: # /home/httpd/html/adm/gpl.txt
                     23: #
                     24: # http://www.lon-capa.org/
                     25: #
                     26: # (Navigate problems for statistical reports
1.28      matthew    27: #
                     28: #######################################################
                     29: #######################################################
                     30: 
                     31: =pod
                     32: 
                     33: =head1 NAME
                     34: 
                     35: lonstudentassessment
                     36: 
                     37: =head1 SYNOPSIS
                     38: 
                     39: Presents assessment data about a student or a group of students.
                     40: 
                     41: =head1 Subroutines
                     42: 
                     43: =over 4 
                     44: 
                     45: =cut
                     46: 
                     47: #######################################################
                     48: #######################################################
1.1       stredwic   49: 
1.21      minaeibi   50: package Apache::lonstudentassessment;
1.1       stredwic   51: 
                     52: use strict;
1.28      matthew    53: use Apache::lonstatistics;
1.1       stredwic   54: use Apache::lonhtmlcommon;
                     55: use Apache::loncoursedata;
1.28      matthew    56: use Apache::lonnet; # for logging porpoises
1.75      matthew    57: use Apache::lonlocal;
1.31      matthew    58: use Spreadsheet::WriteExcel;
1.76    ! matthew    59: use Spreadsheet::WriteExcel::Utility();
1.31      matthew    60: 
                     61: #######################################################
                     62: #######################################################
                     63: =pod
                     64: 
                     65: =item Package Variables
                     66: 
                     67: =over 4
                     68: 
                     69: =item $Statistics Hash ref to store student data.  Indexed by symb,
                     70:       contains hashes with keys 'score' and 'max'.
                     71: 
                     72: =cut
                     73: 
                     74: #######################################################
                     75: #######################################################
1.1       stredwic   76: 
1.30      matthew    77: my $Statistics;
                     78: 
1.28      matthew    79: #######################################################
                     80: #######################################################
                     81: 
                     82: =pod
                     83: 
1.31      matthew    84: =item $show_links 'yes' or 'no' for linking to student performance data
                     85: 
                     86: =item $output_mode 'html', 'excel', or 'csv' for output mode
                     87: 
1.32      matthew    88: =item $show 'all', 'totals', or 'scores' determines how much data is output
1.31      matthew    89: 
1.54      matthew    90: =item $data  determines what performance data is shown
                     91: 
                     92: =item $datadescription A short description of the output data selected.
                     93: 
                     94: =item $base 'tries' or 'scores' determines the base of the performance shown
                     95: 
1.49      matthew    96: =item $single_student_mode evaluates to true if we are showing only one
                     97: student.
                     98: 
1.31      matthew    99: =cut
                    100: 
                    101: #######################################################
                    102: #######################################################
                    103: my $show_links;
                    104: my $output_mode;
1.54      matthew   105: my $data;
                    106: my $base;
                    107: my $datadescription;
1.49      matthew   108: my $single_student_mode;
1.28      matthew   109: 
1.31      matthew   110: #######################################################
                    111: #######################################################
                    112: # End of package variable declarations
1.28      matthew   113: 
1.31      matthew   114: =pod
1.28      matthew   115: 
1.31      matthew   116: =back
1.28      matthew   117: 
1.31      matthew   118: =cut
1.28      matthew   119: 
1.31      matthew   120: #######################################################
                    121: #######################################################
1.28      matthew   122: 
1.31      matthew   123: =pod
1.28      matthew   124: 
1.31      matthew   125: =item &BuildStudentAssessmentPage()
1.28      matthew   126: 
1.31      matthew   127: Inputs: 
1.4       stredwic  128: 
1.31      matthew   129: =over 4
1.28      matthew   130: 
                    131: =item $r Apache Request
                    132: 
                    133: =item $c Apache Connection 
                    134: 
                    135: =back
                    136: 
                    137: =cut
                    138: 
                    139: #######################################################
                    140: #######################################################
1.1       stredwic  141: sub BuildStudentAssessmentPage {
1.30      matthew   142:     my ($r,$c)=@_;
1.74      matthew   143:     #
1.30      matthew   144:     undef($Statistics);
1.66      matthew   145:     undef($show_links);
                    146:     undef($output_mode);
                    147:     undef($data);
                    148:     undef($base);
                    149:     undef($datadescription);
                    150:     undef($single_student_mode);
1.74      matthew   151:     #
                    152:     my %Saveable_Parameters = ('Status' => 'scalar',
                    153:                                'chartoutputmode' => 'scalar',
                    154:                                'chartoutputdata' => 'scalar',
                    155:                                'Section' => 'array',
                    156:                                'StudentData' => 'array',
                    157:                                'Maps' => 'array');
                    158:     &Apache::loncommon::store_course_settings('chart',\%Saveable_Parameters);
                    159:     &Apache::loncommon::restore_course_settings('chart',\%Saveable_Parameters);
                    160:     #
                    161:     &Apache::lonstatistics::PrepareClasslist();
                    162:     #
1.65      matthew   163:     $single_student_mode = 0;
1.49      matthew   164:     $single_student_mode = 1 if ($ENV{'form.SelectedStudent'});
1.59      matthew   165:     if ($ENV{'form.selectstudent'}) {
                    166:         &Apache::lonstatistics::DisplayClasslist($r);
                    167:         return;
                    168:     }
1.30      matthew   169:     #
1.31      matthew   170:     # Print out the HTML headers for the interface
                    171:     #    This also parses the output mode selector
1.54      matthew   172:     #    This step must *always* be done.
1.30      matthew   173:     $r->print(&CreateInterface());
1.31      matthew   174:     $r->print('<input type="hidden" name="notfirstrun" value="true" />');
1.49      matthew   175:     $r->print('<input type="hidden" name="sort" value="'.
                    176:               $ENV{'form.sort'}.'" />');
1.7       stredwic  177:     $r->rflush();
1.58      matthew   178:     #
1.49      matthew   179:     if (! exists($ENV{'form.notfirstrun'}) && ! $single_student_mode) {
1.31      matthew   180:         return;
                    181:     }
                    182:     #
                    183:     my $initialize     = \&html_initialize;
                    184:     my $output_student = \&html_outputstudent;
                    185:     my $finish         = \&html_finish;
                    186:     #
                    187:     if ($output_mode eq 'excel') {
                    188:         $initialize     = \&excel_initialize;
                    189:         $output_student = \&excel_outputstudent;
                    190:         $finish         = \&excel_finish;
                    191:     } elsif ($output_mode eq 'csv') {
                    192:         $initialize     = \&csv_initialize;
                    193:         $output_student = \&csv_outputstudent;
                    194:         $finish         = \&csv_finish;
                    195:     }
1.30      matthew   196:     #
                    197:     if($c->aborted()) {  return ; }
1.31      matthew   198:     #
1.49      matthew   199:     # Determine which students we want to look at
                    200:     my @Students;
                    201:     if ($single_student_mode) {
                    202:         @Students = (&Apache::lonstatistics::current_student());
                    203:         $r->print(&next_and_previous_buttons());
                    204:         $r->rflush();
                    205:     } else {
                    206:         @Students = @Apache::lonstatistics::Students;
                    207:     }
1.56      matthew   208:     #
                    209:     # Perform generic initialization tasks
                    210:     #       Since we use lonnet::EXT to retrieve problem weights,
                    211:     #       to ensure current data we must clear the caches out.
                    212:     #       This makes sure that parameter changes at the student level
                    213:     #       are immediately reflected in the chart.
                    214:     &Apache::lonnet::clear_EXT_cache_status();
1.69      matthew   215:     #
                    216:     # Clean out loncoursedata's package data, just to be safe.
                    217:     &Apache::loncoursedata::clear_internal_caches();
1.49      matthew   218:     #
1.31      matthew   219:     # Call the initialize routine selected above
                    220:     $initialize->($r);
1.49      matthew   221:     foreach my $student (@Students) {
1.31      matthew   222:         if($c->aborted()) { 
                    223:             $finish->($r);
                    224:             return ; 
1.1       stredwic  225:         }
1.31      matthew   226:         # Call the output_student routine selected above
                    227:         $output_student->($r,$student);
                    228:     }
                    229:     # Call the "finish" routine selected above
                    230:     $finish->($r);
                    231:     #
                    232:     return;
                    233: }
                    234: 
                    235: #######################################################
                    236: #######################################################
1.49      matthew   237: sub next_and_previous_buttons {
                    238:     my $Str = '';
                    239:     $Str .= '<input type="hidden" name="SelectedStudent" value="'.
                    240:         $ENV{'form.SelectedStudent'}.'" />';
                    241:     #
                    242:     # Build the previous student link
                    243:     my $previous = &Apache::lonstatistics::previous_student();
                    244:     my $previousbutton = '';
                    245:     if (defined($previous)) {
                    246:         my $sname = $previous->{'username'}.':'.$previous->{'domain'};
                    247:         $previousbutton .= '<input type="button" value="'.
                    248:             'Previous Student ('.
                    249:             $previous->{'username'}.'@'.$previous->{'domain'}.')'.
                    250:             '" onclick="document.Statistics.SelectedStudent.value='.
                    251:             "'".$sname."'".';'.
                    252:             'document.Statistics.submit();" />';
                    253:     } else {
                    254:         $previousbutton .= '<input type="button" value="'.
                    255:             'Previous student (none)'.'" />';
                    256:     }
                    257:     #
                    258:     # Build the next student link
                    259:     my $next = &Apache::lonstatistics::next_student();
                    260:     my $nextbutton = '';
                    261:     if (defined($next)) {
                    262:         my $sname = $next->{'username'}.':'.$next->{'domain'};
                    263:         $nextbutton .= '<input type="button" value="'.
                    264:             'Next Student ('.
                    265:             $next->{'username'}.'@'.$next->{'domain'}.')'.
                    266:             '" onclick="document.Statistics.SelectedStudent.value='.
                    267:             "'".$sname."'".';'.
                    268:             'document.Statistics.submit();" />';
                    269:     } else {
                    270:         $nextbutton .= '<input type="button" value="'.
                    271:             'Next student (none)'.'" />';
                    272:     }
                    273:     #
                    274:     # Build the 'all students' button
                    275:     my $all = '';
                    276:     $all .= '<input type="button" value="All Students" '.
                    277:             '" onclick="document.Statistics.SelectedStudent.value='.
                    278:             "''".';'.'document.Statistics.submit();" />';
                    279:     $Str .= $previousbutton.('&nbsp;'x5).$all.('&nbsp;'x5).$nextbutton;
                    280:     return $Str;
                    281: }
                    282: 
                    283: #######################################################
                    284: #######################################################
1.30      matthew   285: 
1.31      matthew   286: sub get_student_fields_to_show {
                    287:     my @to_show = @Apache::lonstatistics::SelectedStudentData;
                    288:     foreach (@to_show) {
                    289:         if ($_ eq 'all') {
                    290:             @to_show = @Apache::lonstatistics::StudentDataOrder;
                    291:             last;
                    292:         }
                    293:     }
                    294:     return @to_show;
                    295: }
                    296: 
1.28      matthew   297: #######################################################
                    298: #######################################################
                    299: 
                    300: =pod
1.2       stredwic  301: 
1.28      matthew   302: =item &CreateInterface()
1.21      minaeibi  303: 
1.28      matthew   304: Called by &BuildStudentAssessmentPage to create the top part of the
                    305: page which displays the chart.
                    306: 
1.30      matthew   307: Inputs: None
1.28      matthew   308: 
                    309: Returns:  A string containing the HTML for the headers and top table for 
                    310: the chart page.
                    311: 
                    312: =cut
                    313: 
                    314: #######################################################
                    315: #######################################################
1.2       stredwic  316: sub CreateInterface {
1.4       stredwic  317:     my $Str = '';
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:     my $only_seq_with_assessments = sub { 
                    337:         my $s=shift;
                    338:         if ($s->{'num_assess'} < 1) { 
                    339:             return 0;
                    340:         } else { 
                    341:             return 1;
                    342:         }
                    343:     };
                    344:     $Str .= &Apache::lonstatistics::StudentDataSelect('StudentData','multiple',
                    345:                                                       5,undef);
1.46      matthew   346:     $Str .= '</td><td>'."\n";
                    347:     $Str .= &Apache::lonhtmlcommon::StatusOptions(undef,undef,5);
1.4       stredwic  348:     $Str .= '</td><td>'."\n";
1.30      matthew   349:     $Str .= &Apache::lonstatistics::MapSelect('Maps','multiple,all',5,
                    350:                                               $only_seq_with_assessments);
1.31      matthew   351:     $Str .= '</td><td>'."\n";
                    352:     $Str .= &CreateAndParseOutputSelector();
1.54      matthew   353:     $Str .= '</td><td>'."\n";
                    354:     $Str .= &CreateAndParseOutputDataSelector();
1.30      matthew   355:     $Str .= '</td></tr>'."\n";
                    356:     $Str .= '</table>'."\n";
1.75      matthew   357:     $Str .= '<input type="submit" name="Generate Chart" value="'.
                    358:         &mt('Generate Chart').'" />';
1.59      matthew   359:     $Str .= '&nbsp;'x5;
1.75      matthew   360:     $Str .= '<input type="submit" name="selectstudent" value="'.
                    361:         &mt('Select One Student').'" />';
1.59      matthew   362:     $Str .= '&nbsp;'x5;
1.75      matthew   363:     $Str .= '<input type="submit" name="ClearCache" value="'.
                    364:         &mt('Clear Caches').'" />';
1.61      www       365:     $Str .= '&nbsp;'x5;
                    366:     $Str .= '<br />';
1.4       stredwic  367:     return $Str;
1.1       stredwic  368: }
1.30      matthew   369: 
                    370: #######################################################
                    371: #######################################################
                    372: 
                    373: =pod
                    374: 
1.31      matthew   375: =item &CreateAndParseOutputSelector()
1.30      matthew   376: 
                    377: =cut
                    378: 
                    379: #######################################################
                    380: #######################################################
1.32      matthew   381: my @OutputOptions = 
                    382:     ({ name  => 'HTML, with links',
                    383:        value => 'html, with links',
1.33      matthew   384:        description => 'Output HTML with each symbol linked to the problem '.
1.35      matthew   385: 	   'which generated it.',
                    386:        mode => 'html',
                    387:        show_links => 'yes',
                    388:        },
1.47      matthew   389:      { name  => 'HTML, with all links',
                    390:        value => 'html, with all links',
                    391:        description => 'Output HTML with each symbol linked to the problem '.
                    392: 	   'which generated it.  '.
                    393:            'This includes links for unattempted problems.',
                    394:        mode => 'html',
                    395:        show_links => 'all',
                    396:        },
1.32      matthew   397:      { name  => 'HTML, without links',
                    398:        value => 'html, without links',
1.33      matthew   399:        description => 'Output HTML.  By not including links, the size of the'.
                    400: 	   ' web page is greatly reduced.  If your browser crashes on the '.
1.35      matthew   401: 	   'full display, try this.',
                    402:        mode => 'html',
                    403:        show_links => 'no',
                    404:            },
1.54      matthew   405:      { name  => 'Excel',
                    406:        value => 'excel',
                    407:        description => 'Output an Excel file (compatable with Excel 95).',
1.35      matthew   408:        mode => 'excel',
                    409:        show_links => 'no',
1.54      matthew   410:    },
                    411:      { name  => 'CSV',
                    412:        value => 'csv',
                    413:        description => 'Output a comma seperated values file suitable for '.
1.57      matthew   414:            'import into a spreadsheet program.  Using this method as opposed '.
                    415:            'to Excel output allows you to organize your data before importing'.
                    416:            ' it into a spreadsheet program.',
1.35      matthew   417:        mode => 'csv',
                    418:        show_links => 'no',
                    419:            },
1.32      matthew   420:      );
                    421: 
1.33      matthew   422: sub OutputDescriptions {
                    423:     my $Str = '';
1.58      matthew   424:     $Str .= "<h2>Output Formats</h2>\n";
1.33      matthew   425:     $Str .= "<dl>\n";
                    426:     foreach my $outputmode (@OutputOptions) {
                    427: 	$Str .="    <dt>".$outputmode->{'name'}."</dt>\n";
                    428: 	$Str .="        <dd>".$outputmode->{'description'}."</dd>\n";
                    429:     }
                    430:     $Str .= "</dl>\n";
                    431:     return $Str;
                    432: }
                    433: 
1.31      matthew   434: sub CreateAndParseOutputSelector {
                    435:     my $Str = '';
1.44      matthew   436:     my $elementname = 'chartoutputmode';
1.73      matthew   437:     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
                    438:                                             [$elementname]);
1.31      matthew   439:     #
                    440:     # Format for output options is 'mode, restrictions';
1.50      matthew   441:     my $selected = 'html, without links';
1.31      matthew   442:     if (exists($ENV{'form.'.$elementname})) {
                    443:         if (ref($ENV{'form.'.$elementname} eq 'ARRAY')) {
                    444:             $selected = $ENV{'form.'.$elementname}->[0];
                    445:         } else {
                    446:             $selected = $ENV{'form.'.$elementname};
                    447:         }
                    448:     }
                    449:     #
                    450:     # Set package variables describing output mode
                    451:     $show_links  = 'no';
                    452:     $output_mode = 'html';
1.35      matthew   453:     foreach my $option (@OutputOptions) {
                    454:         next if ($option->{'value'} ne $selected);
                    455:         $output_mode = $option->{'mode'};
                    456:         $show_links  = $option->{'show_links'};
1.31      matthew   457:     }
1.35      matthew   458: 
1.31      matthew   459:     #
                    460:     # Build the form element
                    461:     $Str = qq/<select size="5" name="$elementname">/;
1.32      matthew   462:     foreach my $option (@OutputOptions) {
                    463:         $Str .= "\n".'    <option value="'.$option->{'value'}.'"';
                    464:         $Str .= " selected " if ($option->{'value'} eq $selected);
1.75      matthew   465:         $Str .= ">".&mt($option->{'name'})."<\/option>";
1.31      matthew   466:     }
                    467:     $Str .= "\n</select>";
                    468:     return $Str;
                    469: }
1.30      matthew   470: 
1.54      matthew   471: ##
                    472: ## Data selector stuff
                    473: ##
                    474: my @OutputDataOptions =
1.57      matthew   475:     (
1.72      matthew   476:      { name  => 'Scores Summary',
1.57      matthew   477:        base  => 'scores',
                    478:        value => 'sum and total',
                    479:        shortdesc => 'Total Score and Maximum Possible for each '.
                    480:            'Sequence or Folder',
                    481:        longdesc => 'The score of each student as well as the '.
                    482:            ' maximum possible on each Sequence or Folder.',
                    483:        },
1.71      matthew   484:      { name  => 'Scores Per Problem',
1.57      matthew   485:        base  => 'scores',
1.71      matthew   486:        value => 'scores',
                    487:        shortdesc => 'Score on each Problem Part',
                    488:        longdesc =>'The students score on each problem part, computed as'.
                    489:            'the part weight * part awarded',
1.57      matthew   490:        },
1.71      matthew   491: #     { name  => 'Scores Sum',
                    492: #       base  => 'scores',
                    493: #       value => 'sum only',
                    494: #       shortdesc => 'Sum of Scores on each Problem Part',
                    495: #       longdesc =>'The total of the scores of the student on each problem'.
                    496: #           ' part in the sequences or folders selected.',
                    497: #       },
                    498: #     { name  => 'Scores Summary Table Only',
                    499: #       base  => 'scores',
                    500: #       value => 'final table scores',
                    501: #       shortdesc => 'Summary of Scores',
                    502: #       longdesc  => 'The average score on each sequence or folder for the '.
                    503: #           'selected students.',
                    504: #       },
1.57      matthew   505:      { name  =>'Tries',
                    506:        base  =>'tries',
                    507:        value => 'tries',
                    508:        shortdesc => 'Number of Tries before success on each Problem Part',
                    509:        longdesc =>'The number of tries before success on each problem part.',
                    510:        },
                    511:      { name  =>'Parts Correct',
                    512:        base  =>'tries',
                    513:        value => 'parts correct total',
                    514:        shortdesc => 'Number of Problem Parts completed successfully.',
                    515:        longdesc => 'The Number of Problem Parts completed successfully and '.
                    516:            'the maximum possible for each student',
                    517:        },
1.71      matthew   518: #     { name  =>'Parts Correct',
                    519: #       base  =>'tries',
                    520: #       value => 'parts correct',
                    521: #       shortdesc => 'Number of Problem Parts completed successfully.',
                    522: #       longdesc => 'The Number of Problem Parts completed successfully'.
                    523: #           ' on each sequence or folder.',
                    524: #       },
                    525: #     { name  => 'Parts Summary Table Only',
                    526: #       base  => 'tries',
                    527: #       value => 'final table parts',
                    528: #       shortdesc => 'Summary of Parts Correct',
                    529: #       longdesc  => 'A summary table of the average number of problem parts '.
                    530: #           'students were able to get correct on each sequence.',
                    531: #       },
1.57      matthew   532:      );
                    533: 
                    534: sub HTMLifyOutputDataDescriptions {
                    535:     my $Str = '';
1.58      matthew   536:     $Str .= "<h2>Output Data</h2>\n";
1.57      matthew   537:     $Str .= "<dl>\n";
                    538:     foreach my $option (@OutputDataOptions) {
                    539:         $Str .= '    <dt>'.$option->{'name'}.'</dt>';
                    540:         $Str .= '<dd>'.$option->{'longdesc'}.'</dd>'."\n";
                    541:     }
                    542:     $Str .= "</dl>\n";
                    543:     return $Str;
                    544: }
1.54      matthew   545: 
                    546: sub CreateAndParseOutputDataSelector {
                    547:     my $Str = '';
                    548:     my $elementname = 'chartoutputdata';
                    549:     #
                    550:     my $selected = 'scores';
                    551:     if (exists($ENV{'form.'.$elementname})) {
                    552:         if (ref($ENV{'form.'.$elementname} eq 'ARRAY')) {
                    553:             $selected = $ENV{'form.'.$elementname}->[0];
                    554:         } else {
                    555:             $selected = $ENV{'form.'.$elementname};
                    556:         }
                    557:     }
                    558:     #
                    559:     $data = 'scores';
                    560:     foreach my $option (@OutputDataOptions) {
                    561:         if ($option->{'value'} eq $selected) {
                    562:             $data = $option->{'value'};
                    563:             $base = $option->{'base'};
                    564:             $datadescription = $option->{'shortdesc'};
                    565:         }
                    566:     }
                    567:     #
                    568:     # Build the form element
                    569:     $Str = qq/<select size="5" name="$elementname">/;
                    570:     foreach my $option (@OutputDataOptions) {
                    571:         $Str .= "\n".'    <option value="'.$option->{'value'}.'"';
                    572:         $Str .= " selected " if ($option->{'value'} eq $data);
1.75      matthew   573:         $Str .= ">".&mt($option->{'name'})."<\/option>";
1.54      matthew   574:     }
                    575:     $Str .= "\n</select>";
                    576:     return $Str;
                    577: 
                    578: }
                    579: 
1.28      matthew   580: #######################################################
                    581: #######################################################
1.1       stredwic  582: 
1.28      matthew   583: =pod
                    584: 
1.31      matthew   585: =head2 HTML output routines
1.28      matthew   586: 
1.31      matthew   587: =item &html_initialize($r)
1.28      matthew   588: 
1.31      matthew   589: Create labels for the columns of student data to show.
1.28      matthew   590: 
1.31      matthew   591: =item &html_outputstudent($r,$student)
1.28      matthew   592: 
1.31      matthew   593: Return a line of the chart for a student.
1.28      matthew   594: 
1.31      matthew   595: =item &html_finish($r)
1.28      matthew   596: 
                    597: =cut
                    598: 
                    599: #######################################################
                    600: #######################################################
1.31      matthew   601: {
                    602:     my $padding;
                    603:     my $count;
                    604: 
1.39      matthew   605:     my $nodata_count; # The number of students for which there is no data
                    606:     my %prog_state;   # progress state used by loncommon PrgWin routines
                    607: 
1.31      matthew   608: sub html_initialize {
                    609:     my ($r) = @_;
1.30      matthew   610:     #
                    611:     $padding = ' 'x3;
1.35      matthew   612:     $count = 0;
1.39      matthew   613:     $nodata_count = 0;
1.66      matthew   614:     undef(%prog_state);
1.30      matthew   615:     #
1.38      matthew   616:     $r->print("<h3>".$ENV{'course.'.$ENV{'request.course.id'}.'.description'}.
                    617:               "&nbsp;&nbsp;".localtime(time)."</h3>");
1.39      matthew   618: 
1.55      matthew   619:     if ($data !~ /^final table/) {
                    620:         $r->print("<h3>".$datadescription."</h3>");        
                    621:     }
1.39      matthew   622:     #
                    623:     # Set up progress window for 'final table' display only
1.54      matthew   624:     if ($data =~ /^final table/) {
1.39      matthew   625:         my $studentcount = scalar(@Apache::lonstatistics::Students); 
                    626:         %prog_state=&Apache::lonhtmlcommon::Create_PrgWin
                    627:             ($r,'Summary Table Status',
                    628:              'Summary Table Compilation Progress', $studentcount);
                    629:     }
1.31      matthew   630:     my $Str = "<pre>\n";
1.30      matthew   631:     # First, the @StudentData fields need to be listed
1.31      matthew   632:     my @to_show = &get_student_fields_to_show();
1.30      matthew   633:     foreach my $field (@to_show) {
                    634:         my $title=$Apache::lonstatistics::StudentData{$field}->{'title'};
                    635:         my $base =$Apache::lonstatistics::StudentData{$field}->{'base_width'};
                    636:         my $width=$Apache::lonstatistics::StudentData{$field}->{'width'};
                    637:         $Str .= $title.' 'x($width-$base).$padding;
                    638:     }
                    639:     # Now the selected sequences need to be listed
1.40      matthew   640:     foreach my $sequence (&Apache::lonstatistics::Sequences_with_Assess()){
1.31      matthew   641:         my $title = $sequence->{'title'};
                    642:         my $base  = $sequence->{'base_width'};
                    643:         my $width = $sequence->{'width'};
                    644:         $Str .= $title.' 'x($width-$base).$padding;
1.30      matthew   645:     }
1.54      matthew   646:     $Str .= "total</pre>\n";
1.31      matthew   647:     $Str .= "<pre>";
1.39      matthew   648:     #
                    649:     # Check for suppression of output
1.54      matthew   650:     if ($data =~ /^final table/) {
1.39      matthew   651:         $Str = '';
                    652:     }
1.31      matthew   653:     $r->print($Str);
                    654:     $r->rflush();
                    655:     return;
1.30      matthew   656: }
                    657: 
1.31      matthew   658: sub html_outputstudent {
                    659:     my ($r,$student) = @_;
1.2       stredwic  660:     my $Str = '';
1.35      matthew   661:     #
1.55      matthew   662:     if($count++ % 5 == 0 && $count > 0 && $data !~ /^final table/) {
1.35      matthew   663:         $r->print("</pre><pre>");
                    664:     }
1.30      matthew   665:     # First, the @StudentData fields need to be listed
1.31      matthew   666:     my @to_show = &get_student_fields_to_show();
1.30      matthew   667:     foreach my $field (@to_show) {
                    668:         my $title=$student->{$field};
1.31      matthew   669:         my $base = length($title);
1.30      matthew   670:         my $width=$Apache::lonstatistics::StudentData{$field}->{'width'};
                    671:         $Str .= $title.' 'x($width-$base).$padding;
                    672:     }
                    673:     # Get ALL the students data
                    674:     my %StudentsData;
                    675:     my @tmp = &Apache::loncoursedata::get_current_state
                    676:         ($student->{'username'},$student->{'domain'},undef,
                    677:          $ENV{'request.course.id'});
                    678:     if ((scalar @tmp > 0) && ($tmp[0] !~ /^error:/)) {
                    679:         %StudentsData = @tmp;
                    680:     }
                    681:     if (scalar(@tmp) < 1) {
1.39      matthew   682:         $nodata_count++;
1.54      matthew   683:         return if ($data =~ /^final table/);
1.30      matthew   684:         $Str .= '<font color="blue">No Course Data</font>'."\n";
1.31      matthew   685:         $r->print($Str);
                    686:         $r->rflush();
                    687:         return;
1.30      matthew   688:     }
                    689:     #
                    690:     # By sequence build up the data
                    691:     my $studentstats;
1.31      matthew   692:     my $PerformanceStr = '';
1.40      matthew   693:     foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
1.54      matthew   694:         my ($performance,$performance_length,$score,$seq_max,$rawdata);
                    695:         if ($base eq 'tries') {
                    696:             ($performance,$performance_length,$score,$seq_max,$rawdata) =
                    697:                 &StudentTriesOnSequence($student,\%StudentsData,
                    698:                                         $seq,$show_links);
                    699:         } else {
                    700:             ($performance,$performance_length,$score,$seq_max,$rawdata) =
                    701:                 &StudentPerformanceOnSequence($student,\%StudentsData,
                    702:                                               $seq,$show_links);
                    703:         }
                    704:         my $ratio = sprintf("%3d",$score).'/'.sprintf("%3d",$seq_max);
1.31      matthew   705:         #
1.54      matthew   706:         if ($data eq 'sum and total' || $data eq 'parts correct total') {
                    707:             $performance  = $ratio;
                    708:             $performance .= ' 'x($seq->{'width'}-length($ratio));
                    709:         } elsif ($data eq 'sum only' || $data eq 'parts correct') {
                    710:             $performance  = $score;
                    711:             $performance .= ' 'x($seq->{'width'}-length($score));
1.31      matthew   712:         } else {
                    713:             # Pad with extra spaces
1.51      matthew   714:             $performance .= ' 'x($seq->{'width'}-$performance_length-
1.31      matthew   715:                                  length($ratio)
                    716:                                  ).$ratio;
1.30      matthew   717:         }
1.31      matthew   718:         #
                    719:         $Str .= $performance.$padding;
                    720:         #
                    721:         $studentstats->{$seq->{'symb'}}->{'score'}= $score;
                    722:         $studentstats->{$seq->{'symb'}}->{'max'}  = $seq_max;
1.30      matthew   723:     }
                    724:     #
                    725:     # Total it up and store the statistics info.
                    726:     my ($score,$max) = (0,0);
                    727:     while (my ($symb,$seq_stats) = each (%{$studentstats})) {
                    728:         $Statistics->{$symb}->{'score'} += $seq_stats->{'score'};
1.54      matthew   729:         if ($Statistics->{$symb}->{'max'} < $seq_stats->{'max'}) {
                    730:             $Statistics->{$symb}->{'max'} = $seq_stats->{'max'};
                    731:         }
1.30      matthew   732:         $score += $seq_stats->{'score'};
                    733:         $max   += $seq_stats->{'max'};
                    734:     }
1.31      matthew   735:     $Str .= ' '.' 'x(length($max)-length($score)).$score.'/'.$max;
1.30      matthew   736:     $Str .= " \n";
1.39      matthew   737:     #
                    738:     # Check for suppressed output and update the progress window if so...
1.54      matthew   739:     if ($data =~ /^final table/) {
1.39      matthew   740:         $Str = '';
                    741:         &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,
                    742:                                                  'last student');
                    743:     }
                    744:     #
1.31      matthew   745:     $r->print($Str);
                    746:     #
                    747:     $r->rflush();
                    748:     return;
1.30      matthew   749: }    
1.2       stredwic  750: 
1.31      matthew   751: sub html_finish {
                    752:     my ($r) = @_;
1.39      matthew   753:     #
                    754:     # Check for suppressed output and close the progress window if so
1.54      matthew   755:     if ($data =~ /^final table/) {
1.39      matthew   756:         &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
                    757:     } else {
                    758:         $r->print("</pre>\n"); 
                    759:     }
1.49      matthew   760:     if ($single_student_mode) {
                    761:         $r->print(&SingleStudentTotal());
                    762:     } else {
                    763:         $r->print(&StudentAverageTotal());
                    764:     }
1.31      matthew   765:     $r->rflush();
                    766:     return;
                    767: }
                    768: 
1.39      matthew   769: sub StudentAverageTotal {
                    770:     my $Str = "<h3>Summary Tables</h3>\n";
                    771:     my $num_students = scalar(@Apache::lonstatistics::Students);
                    772:     my $total_ave = 0;
                    773:     my $total_max = 0;
                    774:     $Str .= '<table border=2 cellspacing="1">'."\n";
                    775:     $Str .= "<tr><th>Title</th><th>Average</th><th>Maximum</th></tr>\n";
1.40      matthew   776:     foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
1.42      matthew   777:         my $ave;
                    778:         if ($num_students > $nodata_count) {
                    779:             $ave = int(100*($Statistics->{$seq->{'symb'}}->{'score'}/
                    780:                             ($num_students-$nodata_count)))/100;
                    781:         } else {
                    782:             $ave = 0;
                    783:         }
1.39      matthew   784:         $total_ave += $ave;
1.54      matthew   785:         my $max = $Statistics->{$seq->{'symb'}}->{'max'};
1.39      matthew   786:         $total_max += $max;
                    787:         if ($ave == 0) {
                    788:             $ave = "0.00";
                    789:         }
                    790:         $ave .= '&nbsp;';
                    791:         $max .= '&nbsp;&nbsp;&nbsp;';
                    792:         $Str .= '<tr><td>'.$seq->{'title'}.'</td>'.
                    793:             '<td align="right">'.$ave.'</td>'.
                    794:                 '<td align="right">'.$max.'</td></tr>'."\n";
                    795:     }
                    796:     $total_ave = int(100*$total_ave)/100; # only two digit
                    797:     $Str .= "</table>\n";
                    798:     $Str .= '<table border=2 cellspacing="1">'."\n";
                    799:     $Str .= '<tr><th>Number of Students</th><th>Average</th>'.
                    800:         "<th>Maximum</th></tr>\n";
                    801:     $Str .= '<tr><td>'.($num_students-$nodata_count).'</td>'.
                    802:         '<td>'.$total_ave.'</td><td>'.$total_max.'</td>';
                    803:     $Str .= "</table>\n";
                    804:     return $Str;
                    805: }
                    806: 
1.49      matthew   807: sub SingleStudentTotal {
                    808:     my $student = &Apache::lonstatistics::current_student();
1.52      matthew   809:     my $Str = "<h3>Summary table for ".$student->{'fullname'}." ".
                    810:         $student->{'username'}.'@'.$student->{'domain'}."</h3>\n";
1.49      matthew   811:     $Str .= '<table border=2 cellspacing="1">'."\n";
                    812:     $Str .= 
                    813:         "<tr><th>Sequence or Folder</th><th>Score</th><th>Maximum</th></tr>\n";
                    814:     my $total = 0;
                    815:     my $total_max = 0;
                    816:     foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
                    817:         my $value = $Statistics->{$seq->{'symb'}}->{'score'};
                    818:         my $max = $Statistics->{$seq->{'symb'}}->{'max'};
                    819:         $Str .= '<tr><td>'.$seq->{'title'}.'</td>'.
                    820:             '<td align="right">'.$value.'</td>'.
                    821:                 '<td align="right">'.$max.'</td></tr>'."\n";
                    822:         $total += $value;
                    823:         $total_max +=$max;
                    824:     }
                    825:     $Str .= '<tr><td><b>Total</b></td>'.
                    826:         '<td align="right">'.$total.'</td>'.
                    827:         '<td align="right">'.$total_max."</td></tr>\n";
                    828:     $Str .= "</table>\n";
                    829:     return $Str;
                    830: }
                    831: 
1.31      matthew   832: }
                    833: 
                    834: #######################################################
                    835: #######################################################
                    836: 
                    837: =pod
                    838: 
                    839: =head2 EXCEL subroutines
                    840: 
                    841: =item &excel_initialize($r)
                    842: 
                    843: =item &excel_outputstudent($r,$student)
                    844: 
                    845: =item &excel_finish($r)
                    846: 
                    847: =cut
                    848: 
                    849: #######################################################
                    850: #######################################################
                    851: {
                    852: 
                    853: my $excel_sheet;
1.32      matthew   854: my $excel_workbook;
                    855: 
                    856: my $filename;
                    857: my $rows_output;
                    858: my $cols_output;
                    859: 
1.36      matthew   860: my %prog_state; # progress window state
1.54      matthew   861: my $request_aborted;
1.31      matthew   862: 
1.76    ! matthew   863: my $total_formula;
        !           864: 
1.31      matthew   865: sub excel_initialize {
                    866:     my ($r) = @_;
                    867:     #
1.66      matthew   868:     undef ($excel_sheet);
                    869:     undef ($excel_workbook);
                    870:     undef ($filename);
                    871:     undef ($rows_output);
                    872:     undef ($cols_output);
                    873:     undef (%prog_state);
                    874:     undef ($request_aborted);
1.76    ! matthew   875:     undef ($total_formula);
1.66      matthew   876:     #
1.54      matthew   877:     my $total_columns = scalar(&get_student_fields_to_show());
                    878:     foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
                    879:         # Add 2 because we need a 'sum' and 'total' column for each
                    880:         $total_columns += $seq->{'num_assess_parts'}+2;
                    881:     }
                    882:     if ($data eq 'tries' && $total_columns > 255) {
                    883:         $r->print(<<END);
                    884: <h2>Unable to Complete Request</h2>
                    885: <p>
                    886: LON-CAPA is unable to produce your Excel spreadsheet because your selections
                    887: will result in more than 255 columns.  Excel allows only 255 columns in a
                    888: spreadsheet.
                    889: </p><p>
                    890: You may consider reducing the number of <b>Sequences or Folders</b> you
                    891: have selected.  
                    892: </p><p>
                    893: LON-CAPA can produce <b>CSV</b> files of this data or Excel files of the
                    894: summary data (<b>Parts Correct</b> or <b>Parts Correct & Totals</b>).
                    895: </p>
                    896: END
                    897:        $request_aborted = 1;
                    898:     }
                    899:     if ($data eq 'scores' && $total_columns > 255) {
                    900:         $r->print(<<END);
                    901: <h2>Unable to Complete Request</h2>
                    902: <p>
                    903: LON-CAPA is unable to produce your Excel spreadsheet because your selections
                    904: will result in more than 255 columns.  Excel allows only 255 columns in a
                    905: spreadsheet.
                    906: </p><p>
                    907: You may consider reducing the number of <b>Sequences or Folders</b> you
                    908: have selected.  
                    909: </p><p>
                    910: LON-CAPA can produce <b>CSV</b> files of this data or Excel files of the
                    911: summary data (<b>Scores Sum</b> or <b>Scores Sum & Totals</b>).
                    912: </p>
                    913: END
                    914:        $request_aborted = 1;
                    915:     }
                    916:     if ($data =~ /^final table/) {
                    917:         $r->print(<<END);
                    918: <h2>Unable to Complete Request</h2>
                    919: <p>
                    920: The <b>Summary Table (Scores)</b> option is not available for non-HTML output.
                    921: </p>
                    922: END
                    923:        $request_aborted = 1;
                    924:     }
                    925:     return if ($request_aborted);
                    926:     #
1.32      matthew   927:     $filename = '/prtspool/'.
1.31      matthew   928:         $ENV{'user.name'}.'_'.$ENV{'user.domain'}.'_'.
                    929:             time.'_'.rand(1000000000).'.xls';
1.32      matthew   930:     #
                    931:     $excel_workbook = undef;
                    932:     $excel_sheet = undef;
                    933:     #
                    934:     $rows_output = 0;
                    935:     $cols_output = 0;
                    936:     #
                    937:     # Create sheet
                    938:     $excel_workbook = Spreadsheet::WriteExcel->new('/home/httpd'.$filename);
                    939:     #
                    940:     # Check for errors
                    941:     if (! defined($excel_workbook)) {
1.31      matthew   942:         $r->log_error("Error creating excel spreadsheet $filename: $!");
                    943:         $r->print("Problems creating new Excel file.  ".
                    944:                   "This error has been logged.  ".
                    945:                   "Please alert your LON-CAPA administrator");
1.32      matthew   946:         return ;
1.31      matthew   947:     }
                    948:     #
                    949:     # The excel spreadsheet stores temporary data in files, then put them
                    950:     # together.  If needed we should be able to disable this (memory only).
                    951:     # The temporary directory must be specified before calling 'addworksheet'.
                    952:     # File::Temp is used to determine the temporary directory.
1.32      matthew   953:     $excel_workbook->set_tempdir($Apache::lonnet::tmpdir);
                    954:     #
                    955:     # Add a worksheet
1.33      matthew   956:     my $sheetname = $ENV{'course.'.$ENV{'request.course.id'}.'.description'};
1.67      matthew   957:     $sheetname = &Apache::loncommon::clean_excel_name($sheetname);
1.33      matthew   958:     $excel_sheet = $excel_workbook->addworksheet($sheetname);
1.32      matthew   959:     #
1.34      matthew   960:     # Put the course description in the header
                    961:     $excel_sheet->write($rows_output,$cols_output++,
                    962:                    $ENV{'course.'.$ENV{'request.course.id'}.'.description'});
                    963:     $cols_output += 3;
                    964:     #
                    965:     # Put a description of the sections listed
                    966:     my $sectionstring = '';
                    967:     my @Sections = @Apache::lonstatistics::SelectedSections;
                    968:     if (scalar(@Sections) > 1) {
                    969:         if (scalar(@Sections) > 2) {
                    970:             my $last = pop(@Sections);
                    971:             $sectionstring = "Sections ".join(', ',@Sections).', and '.$last;
                    972:         } else {
                    973:             $sectionstring = "Sections ".join(' and ',@Sections);
                    974:         }
                    975:     } else {
                    976:         if ($Sections[0] eq 'all') {
                    977:             $sectionstring = "All sections";
                    978:         } else {
                    979:             $sectionstring = "Section ".$Sections[0];
                    980:         }
                    981:     }
                    982:     $excel_sheet->write($rows_output,$cols_output++,$sectionstring);
                    983:     $cols_output += scalar(@Sections);
                    984:     #
                    985:     # Put the date in there too
1.54      matthew   986:     $excel_sheet->write($rows_output++,$cols_output++,
1.34      matthew   987:                         'Compiled on '.localtime(time));
                    988:     #
1.54      matthew   989:     $cols_output = 0;
                    990:     $excel_sheet->write($rows_output++,$cols_output++,$datadescription);
                    991:     #
                    992:     if ($data eq 'tries' || $data eq 'scores') {
                    993:         $rows_output++;
                    994:     }
1.34      matthew   995:     #
1.32      matthew   996:     # Add the student headers
1.34      matthew   997:     $cols_output = 0;
1.32      matthew   998:     foreach my $field (&get_student_fields_to_show()) {
1.34      matthew   999:         $excel_sheet->write($rows_output,$cols_output++,$field);
1.32      matthew  1000:     }
1.54      matthew  1001:     my $row_offset = 0;
                   1002:     if ($data eq 'tries' || $data eq 'scores') {
                   1003:         $row_offset = -1;
                   1004:     }
1.32      matthew  1005:     #
1.54      matthew  1006:     # Add the remaining column headers
1.76    ! matthew  1007:     my $total_formula_string = '=0';
1.40      matthew  1008:     foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
1.54      matthew  1009:         $excel_sheet->write($rows_output+$row_offset,
                   1010:                             $cols_output,$seq->{'title'});
                   1011:         if ($data eq 'tries' || $data eq 'scores') {
1.76    ! matthew  1012:             # Determine starting cell
        !          1013:             $seq->{'Excel:startcell'}=
        !          1014:                 &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
        !          1015:                 ($rows_output,$cols_output);
        !          1016:             $seq->{'Excel:startcol'}=$cols_output;
        !          1017:             # Put the names of the problems and parts into the sheet
1.54      matthew  1018:             foreach my $res (@{$seq->{'contents'}}) {
                   1019:                 next if ($res->{'type'} ne 'assessment');
                   1020:                 if (scalar(@{$res->{'parts'}}) > 1) {
                   1021:                     foreach my $part (@{$res->{'parts'}}) {
                   1022:                         $excel_sheet->write($rows_output,
                   1023:                                             $cols_output++,
                   1024:                                             $res->{'title'}.' part '.$part);
                   1025:                     }
                   1026:                 } else {
                   1027:                     $excel_sheet->write($rows_output,
                   1028:                                         $cols_output++,
                   1029:                                         $res->{'title'});
                   1030:                 }
                   1031:             }
1.76    ! matthew  1032:             # Determine ending cell
        !          1033:             $seq->{'Excel:endcell'} = 
        !          1034:                 &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
        !          1035:                                              ($rows_output,$cols_output-1);
        !          1036:             $seq->{'Excel:endcol'}=$cols_output-1;
        !          1037:             # Determine cell the score is held in
        !          1038:             $seq->{'Excel:scorecell'} = 
        !          1039:                 &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
        !          1040:                                              ($rows_output,$cols_output);
        !          1041:             $seq->{'Excel:scorecol'}=$cols_output;
1.54      matthew  1042:             $excel_sheet->write($rows_output,$cols_output++,'score');
1.76    ! matthew  1043:             # Create the formula for summing up this sequence
        !          1044:             $seq->{'Excel:sum'}= $excel_sheet->store_formula
        !          1045:                                         ('=SUM('.$seq->{'Excel:startcell'}.
        !          1046:                                              ':'.$seq->{'Excel:endcell'}.')');
        !          1047:             #
        !          1048:             $total_formula_string.='+'.
        !          1049:                 &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
        !          1050:                                         ($rows_output,$cols_output-1);
1.54      matthew  1051:             $excel_sheet->write($rows_output,$cols_output++,'maximum');
1.76    ! matthew  1052:         } elsif ($data eq 'sum and total') {
1.34      matthew  1053:             $excel_sheet->write($rows_output+1,$cols_output,'score');
1.76    ! matthew  1054:             $total_formula_string.='+'.
        !          1055:                 &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
        !          1056:                                         ($rows_output+1,$cols_output);
        !          1057:             $excel_sheet->write($rows_output+1,$cols_output+1,'maximum');
        !          1058:             $cols_output += 2;
        !          1059:         } elsif ($data eq 'parts correct total') {
        !          1060:             $excel_sheet->write($rows_output+1,$cols_output,'parts correct');
        !          1061:             $total_formula_string.='+'.
        !          1062:                 &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
        !          1063:                                         ($rows_output+1,$cols_output);
1.34      matthew  1064:             $excel_sheet->write($rows_output+1,$cols_output+1,'maximum');
1.32      matthew  1065:             $cols_output += 2;
                   1066:         } else {
                   1067:             $cols_output++;
                   1068:         }
                   1069:     }
1.76    ! matthew  1070:     $excel_sheet->write($rows_output,$cols_output,'Grand Total');
        !          1071:     $total_formula = $excel_sheet->store_formula($total_formula_string);
1.32      matthew  1072:     #
                   1073:     # Bookkeeping
1.54      matthew  1074:     if ($data eq 'sum and total' || $data eq 'parts correct total') {
1.34      matthew  1075:         $rows_output += 2;
1.32      matthew  1076:     } else {
1.34      matthew  1077:         $rows_output += 1;
1.45      matthew  1078:     }
                   1079:     #
                   1080:     # Output a row for MAX
1.54      matthew  1081:     $cols_output = 0;
                   1082:     foreach my $field (&get_student_fields_to_show()) {
                   1083:         if ($field eq 'username' || $field eq 'fullname' || 
                   1084:             $field eq 'id') {
                   1085:             $excel_sheet->write($rows_output,$cols_output++,'Maximum');
                   1086:         } else {
                   1087:             $excel_sheet->write($rows_output,$cols_output++,'');
                   1088:         }
                   1089:     }
                   1090:     #
                   1091:     # Add the maximums for each sequence or assessment
1.76    ! matthew  1092:     my %total_cell_translation;
1.54      matthew  1093:     foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
1.76    ! matthew  1094:         $total_cell_translation{$seq->{'Excel:scorecell'}} = 
        !          1095:             &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
        !          1096:                         ($rows_output,$seq->{'Excel:scorecol'});
1.54      matthew  1097:         my $weight;
                   1098:         my $max = 0;
                   1099:         foreach my $resource (@{$seq->{'contents'}}) {
                   1100:             next if ($resource->{'type'} ne 'assessment');
                   1101:             foreach my $part (@{$resource->{'parts'}}) {
                   1102:                 $weight = 1;
                   1103:                 if ($base eq 'scores') {
                   1104:                     $weight = &Apache::lonnet::EXT
                   1105:                         ('resource.'.$part.'.weight',$resource->{'symb'},
                   1106:                          undef,undef,undef);
                   1107:                     if (!defined($weight) || ($weight eq '')) { 
                   1108:                         $weight=1;
                   1109:                     }
                   1110:                 }
                   1111:                 if ($data eq 'scores') {
                   1112:                     $excel_sheet->write($rows_output,$cols_output++,$weight);
                   1113:                 } elsif ($data eq 'tries') {
                   1114:                     $excel_sheet->write($rows_output,$cols_output++,'');
                   1115:                 }
                   1116:                 $max += $weight;
1.45      matthew  1117:             }
1.54      matthew  1118:         } 
                   1119:         if (! ($data eq 'sum only' || $data eq 'parts correct')) {
                   1120:             $excel_sheet->write($rows_output,$cols_output++,'');
1.45      matthew  1121:         }
1.76    ! matthew  1122:         my %replaceCells;
        !          1123:         $replaceCells{$seq->{'Excel:startcell'}} = 
        !          1124:             &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
        !          1125:                                    ($rows_output,$seq->{'Excel:startcol'});
        !          1126:         $replaceCells{$seq->{'Excel:endcell'}} = 
        !          1127:             &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
        !          1128:                                    ($rows_output,$seq->{'Excel:endcol'});
        !          1129:         $excel_sheet->repeat_formula($rows_output,$cols_output++,
        !          1130:                                      $seq->{'Excel:sum'},undef,
        !          1131:                                      %replaceCells);
        !          1132:     }
        !          1133:     $excel_sheet->repeat_formula($rows_output,$cols_output++,
        !          1134:                                  $total_formula,undef,
        !          1135:                                  %total_cell_translation);
1.54      matthew  1136:     $rows_output++;
1.32      matthew  1137:     #
                   1138:     # Let the user know what we are doing
                   1139:     my $studentcount = scalar(@Apache::lonstatistics::Students); 
                   1140:     $r->print("<h1>Compiling Excel spreadsheet for ".
                   1141:               $studentcount.' student');
                   1142:     $r->print('s') if ($studentcount > 1);
                   1143:     $r->print("</h1>\n");
                   1144:     $r->rflush();
1.31      matthew  1145:     #
1.36      matthew  1146:     # Initialize progress window
                   1147:     %prog_state=&Apache::lonhtmlcommon::Create_PrgWin
                   1148:         ($r,'Excel File Compilation Status',
                   1149:          'Excel File Compilation Progress', $studentcount);
                   1150:     #
1.62      matthew  1151:     &Apache::lonhtmlcommon::Update_PrgWin($r,\%prog_state,
                   1152:                                           'Processing first student');
1.31      matthew  1153:     return;
                   1154: }
                   1155: 
                   1156: sub excel_outputstudent {
                   1157:     my ($r,$student) = @_;
1.54      matthew  1158:     return if ($request_aborted);
1.32      matthew  1159:     return if (! defined($excel_sheet));
                   1160:     $cols_output=0;
                   1161:     #
                   1162:     # Write out student data
                   1163:     my @to_show = &get_student_fields_to_show();
                   1164:     foreach my $field (@to_show) {
                   1165:         $excel_sheet->write($rows_output,$cols_output++,$student->{$field});
                   1166:     }
                   1167:     #
                   1168:     # Get student assessment data
                   1169:     my %StudentsData;
                   1170:     my @tmp = &Apache::loncoursedata::get_current_state($student->{'username'},
                   1171:                                                         $student->{'domain'},
                   1172:                                                         undef,
                   1173:                                                    $ENV{'request.course.id'});
                   1174:     if ((scalar @tmp > 0) && ($tmp[0] !~ /^error:/)) {
                   1175:         %StudentsData = @tmp;
                   1176:     }
                   1177:     #
                   1178:     # Write out sequence scores and totals data
1.76    ! matthew  1179:     my %total_cell_translation;
1.40      matthew  1180:     foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
1.76    ! matthew  1181:         # Keep track of cells to translate in total cell
        !          1182:         $total_cell_translation{$seq->{'Excel:scorecell'}} = 
        !          1183:             &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
        !          1184:                         ($rows_output,$seq->{'Excel:scorecol'});
        !          1185:         #
1.54      matthew  1186:         my ($performance,$performance_length,$score,$seq_max,$rawdata);
                   1187:         if ($base eq 'tries') {
                   1188:             ($performance,$performance_length,$score,$seq_max,$rawdata) =
                   1189:                 &StudentTriesOnSequence($student,\%StudentsData,
                   1190:                                         $seq,'no');
                   1191:         } else {
                   1192:             ($performance,$performance_length,$score,$seq_max,$rawdata) =
                   1193:                 &StudentPerformanceOnSequence($student,\%StudentsData,
                   1194:                                               $seq,'no');
                   1195:         }
                   1196:         if ($data eq 'tries' || $data eq 'scores') {
                   1197:             foreach my $value (@$rawdata) {
                   1198:                 $excel_sheet->write($rows_output,$cols_output++,$value);
                   1199:             }
1.76    ! matthew  1200:             # Write a formula for the sum of this sequence
        !          1201:             my %replaceCells;
        !          1202:             $replaceCells{$seq->{'Excel:startcell'}} = 
        !          1203:                 &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
        !          1204:                             ($rows_output,$seq->{'Excel:startcol'});
        !          1205:             $replaceCells{$seq->{'Excel:endcell'}} = 
        !          1206:                 &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
        !          1207:                             ($rows_output,$seq->{'Excel:endcol'});
        !          1208:             # The undef is for the format
        !          1209:             $excel_sheet->repeat_formula($rows_output,$cols_output++,
        !          1210:                                          $seq->{'Excel:sum'},undef,
        !          1211:                                          %replaceCells);
        !          1212:             #
1.54      matthew  1213:             $excel_sheet->write($rows_output,$cols_output++,$seq_max);
                   1214:         } elsif ($data eq 'sum and total' || $data eq 'sum only' || 
                   1215:             $data eq 'parts correct' || $data eq 'parts correct total') {
1.32      matthew  1216:             $excel_sheet->write($rows_output,$cols_output++,$score);
                   1217:         }
1.54      matthew  1218:         if ($data eq 'sum and total' || $data eq 'parts correct total') {
1.32      matthew  1219:             $excel_sheet->write($rows_output,$cols_output++,$seq_max);
                   1220:         }
                   1221:     }
1.76    ! matthew  1222:     #
        !          1223:     $excel_sheet->repeat_formula($rows_output,$cols_output++,
        !          1224:                                  $total_formula,undef,
        !          1225:                                  %total_cell_translation);
        !          1226: 
1.32      matthew  1227:     #
                   1228:     # Bookkeeping
                   1229:     $rows_output++; 
                   1230:     $cols_output=0;
                   1231:     #
1.36      matthew  1232:     # Update the progress window
                   1233:     &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,'last student');
1.32      matthew  1234:     return;
1.31      matthew  1235: }
                   1236: 
                   1237: sub excel_finish {
                   1238:     my ($r) = @_;
1.54      matthew  1239:     return if ($request_aborted);
1.32      matthew  1240:     return if (! defined($excel_sheet));
                   1241:     #
                   1242:     # Write the excel file
                   1243:     $excel_workbook->close();
                   1244:     my $c = $r->connection();
                   1245:     #
                   1246:     return if($c->aborted());
                   1247:     #
1.36      matthew  1248:     # Close the progress window
                   1249:     &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
                   1250:     #
1.32      matthew  1251:     # Tell the user where to get their excel file
1.36      matthew  1252:     $r->print('<br />'.
1.32      matthew  1253:               '<a href="'.$filename.'">Your Excel spreadsheet.</a>'."\n");
                   1254:     $r->rflush();
                   1255:     return;
1.31      matthew  1256: }
                   1257: 
                   1258: }
1.30      matthew  1259: #######################################################
                   1260: #######################################################
                   1261: 
                   1262: =pod
                   1263: 
1.31      matthew  1264: =head2 CSV output routines
                   1265: 
                   1266: =item &csv_initialize($r)
                   1267: 
                   1268: =item &csv_outputstudent($r,$student)
                   1269: 
                   1270: =item &csv_finish($r)
1.30      matthew  1271: 
                   1272: =cut
                   1273: 
                   1274: #######################################################
                   1275: #######################################################
1.31      matthew  1276: {
                   1277: 
1.37      matthew  1278: my $outputfile;
                   1279: my $filename;
1.54      matthew  1280: my $request_aborted;
1.37      matthew  1281: my %prog_state; # progress window state
                   1282: 
1.31      matthew  1283: sub csv_initialize{
                   1284:     my ($r) = @_;
1.37      matthew  1285:     # 
                   1286:     # Clean up
1.66      matthew  1287:     undef($outputfile);
                   1288:     undef($filename);
                   1289:     undef($request_aborted);
1.37      matthew  1290:     undef(%prog_state);
                   1291:     #
1.54      matthew  1292:     # Deal with unimplemented requests
                   1293:     $request_aborted = undef;
                   1294:     if ($data =~ /final table/) {
                   1295:         $r->print(<<END);
                   1296: <h2>Unable to Complete Request</h2>
                   1297: <p>
                   1298: The <b>Summary Table (Scores)</b> option is not available for non-HTML output.
                   1299: </p>
                   1300: END
                   1301:        $request_aborted = 1;
                   1302:     }
                   1303:     return if ($request_aborted);
                   1304: 
                   1305:     #
1.37      matthew  1306:     # Open a file
                   1307:     $filename = '/prtspool/'.
                   1308:         $ENV{'user.name'}.'_'.$ENV{'user.domain'}.'_'.
                   1309:             time.'_'.rand(1000000000).'.csv';
                   1310:     unless ($outputfile = Apache::File->new('>/home/httpd'.$filename)) {
                   1311:         $r->log_error("Couldn't open $filename for output $!");
                   1312:         $r->print("Problems occured in writing the csv file.  ".
                   1313:                   "This error has been logged.  ".
                   1314:                   "Please alert your LON-CAPA administrator.");
                   1315:         $outputfile = undef;
                   1316:     }
1.38      matthew  1317:     #
                   1318:     # Datestamp
                   1319:     my $description = $ENV{'course.'.$ENV{'request.course.id'}.'.description'};
                   1320:     print $outputfile '"'.&Apache::loncommon::csv_translate($description).'",'.
                   1321:         '"'.&Apache::loncommon::csv_translate(scalar(localtime(time))).'"'.
                   1322:             "\n";
1.37      matthew  1323:     #
                   1324:     # Print out the headings
                   1325:     my $Str = '';
                   1326:     my $Str2 = undef;
                   1327:     foreach my $field (&get_student_fields_to_show()) {
1.54      matthew  1328:         if ($data eq 'sum only') {
1.37      matthew  1329:             $Str .= '"'.&Apache::loncommon::csv_translate($field).'",';
1.54      matthew  1330:         } elsif ($data eq 'sum and total' || $data eq 'parts correct total') {
1.37      matthew  1331:             $Str .= '"",'; # first row empty on the student fields
                   1332:             $Str2 .= '"'.&Apache::loncommon::csv_translate($field).'",';
1.54      matthew  1333:         } elsif ($data eq 'scores' || $data eq 'tries' || 
                   1334:                  $data eq 'parts correct') {
1.53      matthew  1335:             $Str  .= '"",';
                   1336:             $Str2 .= '"'.&Apache::loncommon::csv_translate($field).'",';
1.37      matthew  1337:         }
                   1338:     }
1.40      matthew  1339:     foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
1.54      matthew  1340:         if ($data eq 'sum only' || $data eq 'parts correct') {
1.37      matthew  1341:             $Str .= '"'.&Apache::loncommon::csv_translate($seq->{'title'}).
                   1342:                 '",';
1.54      matthew  1343:         } elsif ($data eq 'sum and total' || $data eq 'parts correct total') {
1.37      matthew  1344:             $Str  .= '"'.&Apache::loncommon::csv_translate($seq->{'title'}).
                   1345:                 '","",';
                   1346:             $Str2 .= '"score","total possible",';
1.54      matthew  1347:         } elsif ($data eq 'scores' || $data eq 'tries') {
1.37      matthew  1348:             $Str  .= '"'.&Apache::loncommon::csv_translate($seq->{'title'}).
                   1349:                 '",';
1.53      matthew  1350:             $Str .= '"",'x($seq->{'num_assess_parts'}-1+2);
                   1351:             foreach my $res (@{$seq->{'contents'}}) {
1.54      matthew  1352:                 next if ($res->{'type'} ne 'assessment');
1.53      matthew  1353:                 foreach my $part (@{$res->{'parts'}}) {
                   1354:                     $Str2 .= '"'.&Apache::loncommon::csv_translate($res->{'title'}.', Part '.$part).'",';
                   1355:                 }
                   1356:             }
                   1357:             $Str2 .= '"score","total possible",';
1.37      matthew  1358:         }
                   1359:     }
                   1360:     chop($Str);
                   1361:     $Str .= "\n";
                   1362:     print $outputfile $Str;
                   1363:     if (defined($Str2)) {
                   1364:         chop($Str2);
                   1365:         $Str2 .= "\n";
                   1366:         print $outputfile $Str2;
                   1367:     }
                   1368:     #
                   1369:     # Initialize progress window
                   1370:     my $studentcount = scalar(@Apache::lonstatistics::Students);
                   1371:     %prog_state=&Apache::lonhtmlcommon::Create_PrgWin
                   1372:         ($r,'CSV File Compilation Status',
                   1373:          'CSV File Compilation Progress', $studentcount);
1.31      matthew  1374:     return;
                   1375: }
                   1376: 
                   1377: sub csv_outputstudent {
                   1378:     my ($r,$student) = @_;
1.54      matthew  1379:     return if ($request_aborted);
1.37      matthew  1380:     return if (! defined($outputfile));
                   1381:     my $Str = '';
                   1382:     #
                   1383:     # Output student fields
                   1384:     my @to_show = &get_student_fields_to_show();
                   1385:     foreach my $field (@to_show) {
                   1386:         $Str .= '"'.&Apache::loncommon::csv_translate($student->{$field}).'",';
                   1387:     }
                   1388:     #
                   1389:     # Get student assessment data
                   1390:     my %StudentsData;
                   1391:     my @tmp = &Apache::loncoursedata::get_current_state($student->{'username'},
                   1392:                                                         $student->{'domain'},
                   1393:                                                         undef,
                   1394:                                                    $ENV{'request.course.id'});
                   1395:     if ((scalar @tmp > 0) && ($tmp[0] !~ /^error:/)) {
                   1396:         %StudentsData = @tmp;
                   1397:     }
                   1398:     #
                   1399:     # Output performance data
1.40      matthew  1400:     foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
1.54      matthew  1401:         my ($performance,$performance_length,$score,$seq_max,$rawdata);
                   1402:         if ($base eq 'tries') {
                   1403:             ($performance,$performance_length,$score,$seq_max,$rawdata) =
                   1404:                 &StudentTriesOnSequence($student,\%StudentsData,
                   1405:                                         $seq,'no');
                   1406:         } else {
                   1407:             ($performance,$performance_length,$score,$seq_max,$rawdata) =
                   1408:                 &StudentPerformanceOnSequence($student,\%StudentsData,
                   1409:                                               $seq,'no');
                   1410:         }
                   1411:         if ($data eq 'sum only' || $data eq 'parts correct') {
1.37      matthew  1412:             $Str .= '"'.$score.'",';
1.54      matthew  1413:         } elsif ($data eq 'sum and total' || $data eq 'parts correct total') {
1.37      matthew  1414:             $Str  .= '"'.$score.'","'.$seq_max.'",';
1.54      matthew  1415:         } elsif ($data eq 'scores' || $data eq 'tries') {
                   1416:             $Str .= '"'.join('","',(@$rawdata,$score,$seq_max)).'",';
1.37      matthew  1417:         }
                   1418:     }
                   1419:     chop($Str);
                   1420:     $Str .= "\n";
                   1421:     print $outputfile $Str;
                   1422:     #
                   1423:     # Update the progress window
                   1424:     &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,'last student');
                   1425:     return;
1.31      matthew  1426: }
                   1427: 
                   1428: sub csv_finish {
                   1429:     my ($r) = @_;
1.54      matthew  1430:     return if ($request_aborted);
1.37      matthew  1431:     return if (! defined($outputfile));
                   1432:     close($outputfile);
                   1433:     #
                   1434:     my $c = $r->connection();
                   1435:     return if ($c->aborted());
                   1436:     #
                   1437:     # Close the progress window
                   1438:     &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
                   1439:     #
                   1440:     # Tell the user where to get their csv file
                   1441:     $r->print('<br />'.
                   1442:               '<a href="'.$filename.'">Your csv file.</a>'."\n");
                   1443:     $r->rflush();
                   1444:     return;
                   1445:     
1.31      matthew  1446: }
1.2       stredwic 1447: 
                   1448: }
                   1449: 
1.28      matthew  1450: #######################################################
                   1451: #######################################################
                   1452: 
1.2       stredwic 1453: =pod
                   1454: 
1.54      matthew  1455: =item &StudentTriesOnSequence()
1.2       stredwic 1456: 
1.30      matthew  1457: Inputs:
1.2       stredwic 1458: 
                   1459: =over 4
                   1460: 
1.30      matthew  1461: =item $student
1.28      matthew  1462: 
1.30      matthew  1463: =item $studentdata Hash ref to all student data
1.2       stredwic 1464: 
1.30      matthew  1465: =item $seq Hash ref, the sequence we are working on
1.2       stredwic 1466: 
1.30      matthew  1467: =item $links if defined we will output links to each resource.
1.2       stredwic 1468: 
1.28      matthew  1469: =back
1.2       stredwic 1470: 
                   1471: =cut
1.1       stredwic 1472: 
1.28      matthew  1473: #######################################################
                   1474: #######################################################
1.54      matthew  1475: sub StudentTriesOnSequence {
1.32      matthew  1476:     my ($student,$studentdata,$seq,$links) = @_;
1.31      matthew  1477:     $links = 'no' if (! defined($links));
1.1       stredwic 1478:     my $Str = '';
1.30      matthew  1479:     my ($sum,$max) = (0,0);
1.51      matthew  1480:     my $performance_length = 0;
1.54      matthew  1481:     my @TriesData = ();
                   1482:     my $tries;
1.30      matthew  1483:     foreach my $resource (@{$seq->{'contents'}}) {
                   1484:         next if ($resource->{'type'} ne 'assessment');
                   1485:         my $resource_data = $studentdata->{$resource->{'symb'}};
                   1486:         my $value = '';
                   1487:         foreach my $partnum (@{$resource->{'parts'}}) {
1.54      matthew  1488:             $tries = undef;
1.30      matthew  1489:             $max++;
1.51      matthew  1490:             $performance_length++;
1.30      matthew  1491:             my $symbol = ' '; # default to space
                   1492:             #
                   1493:             if (exists($resource_data->{'resource.'.$partnum.'.solved'})) {
                   1494:                 my $status = $resource_data->{'resource.'.$partnum.'.solved'};
                   1495:                 if ($status eq 'correct_by_override') {
                   1496:                     $symbol = '+';
                   1497:                     $sum++;
                   1498:                 } elsif ($status eq 'incorrect_by_override') {
                   1499:                     $symbol = '-';
                   1500:                 } elsif ($status eq 'ungraded_attempted') {
                   1501:                     $symbol = '#';
                   1502:                 } elsif ($status eq 'incorrect_attempted')  {
                   1503:                     $symbol = '.';
                   1504:                 } elsif ($status eq 'excused') {
                   1505:                     $symbol = 'x';
                   1506:                     $max--;
1.68      matthew  1507:                 } elsif (($status eq 'correct_by_scantron' ||
                   1508:                           $status eq 'correct_by_student') &&
1.30      matthew  1509:                     exists($resource_data->{'resource.'.$partnum.'.tries'})){
1.54      matthew  1510:                     $tries = $resource_data->{'resource.'.$partnum.'.tries'};
                   1511:                     if ($tries > 9) {
1.30      matthew  1512:                         $symbol = '*';
1.54      matthew  1513:                     } elsif ($tries > 0) {
                   1514:                         $symbol = $tries;
1.30      matthew  1515:                     } else {
                   1516:                         $symbol = ' ';
                   1517:                     }
                   1518:                     $sum++;
1.43      matthew  1519:                 } elsif (exists($resource_data->{'resource.'.
                   1520:                                                      $partnum.'.tries'})){
                   1521:                     $symbol = '.';
1.30      matthew  1522:                 } else {
                   1523:                     $symbol = ' ';
1.2       stredwic 1524:                 }
1.30      matthew  1525:             } else {
                   1526:                 # Unsolved.  Did they try?
                   1527:                 if (exists($resource_data->{'resource.'.$partnum.'.tries'})){
                   1528:                     $symbol = '.';
                   1529:                 } else {
                   1530:                     $symbol = ' ';
1.18      matthew  1531:                 }
1.2       stredwic 1532:             }
1.54      matthew  1533:             #
                   1534:             if (! defined($tries)) {
                   1535:                 $tries = $symbol;
                   1536:             }
                   1537:             push (@TriesData,$tries);
1.30      matthew  1538:             #
1.47      matthew  1539:             if ( ($links eq 'yes' && $symbol ne ' ') ||
                   1540:                  ($links eq 'all')) {
1.49      matthew  1541:                 if (length($symbol) > 1) {
                   1542:                     &Apache::lonnet::logthis('length of symbol "'.$symbol.'" > 1');
                   1543:                 }
1.30      matthew  1544:                 $symbol = '<a href="/adm/grades'.
                   1545:                     '?symb='.&Apache::lonnet::escape($resource->{'symb'}).
                   1546:                         '&student='.$student->{'username'}.
1.64      albertel 1547:                             '&userdom='.$student->{'domain'}.
1.30      matthew  1548:                                 '&command=submission">'.$symbol.'</a>';
                   1549:             }
                   1550:             $value .= $symbol;
1.2       stredwic 1551:         }
1.30      matthew  1552:         $Str .= $value;
1.17      minaeibi 1553:     }
1.51      matthew  1554:     if ($seq->{'randompick'}) {
                   1555:         $max = $seq->{'randompick'};
                   1556:     }
1.54      matthew  1557:     return ($Str,$performance_length,$sum,$max,\@TriesData);
                   1558: }
                   1559: 
                   1560: #######################################################
                   1561: #######################################################
                   1562: 
                   1563: =pod
                   1564: 
                   1565: =item &StudentPerformanceOnSequence()
                   1566: 
                   1567: Inputs:
                   1568: 
                   1569: =over 4
                   1570: 
                   1571: =item $student
                   1572: 
                   1573: =item $studentdata Hash ref to all student data
                   1574: 
                   1575: =item $seq Hash ref, the sequence we are working on
                   1576: 
                   1577: =item $links if defined we will output links to each resource.
                   1578: 
                   1579: =back
                   1580: 
                   1581: =cut
                   1582: 
                   1583: #######################################################
                   1584: #######################################################
                   1585: sub StudentPerformanceOnSequence {
                   1586:     my ($student,$studentdata,$seq,$links) = @_;
                   1587:     $links = 'no' if (! defined($links));
                   1588:     my $Str = ''; # final result string
                   1589:     my ($score,$max) = (0,0);
                   1590:     my $performance_length = 0;
                   1591:     my $symbol;
                   1592:     my @ScoreData = ();
                   1593:     my $partscore;
                   1594:     foreach my $resource (@{$seq->{'contents'}}) {
                   1595:         next if ($resource->{'type'} ne 'assessment');
                   1596:         my $resource_data = $studentdata->{$resource->{'symb'}};
                   1597:         foreach my $part (@{$resource->{'parts'}}) {
                   1598:             $partscore = undef;
                   1599:             my $weight = &Apache::lonnet::EXT('resource.'.$part.'.weight',
                   1600:                                               $resource->{'symb'},
                   1601:                                               $student->{'domain'},
                   1602:                                               $student->{'username'},
                   1603:                                               $student->{'section'});
                   1604:             if (!defined($weight) || ($weight eq '')) { 
                   1605:                 $weight=1;
                   1606:             }
                   1607:             #
                   1608:             $max += $weight; # see the 'excused' branch below...
                   1609:             $performance_length++; # one character per part
                   1610:             $symbol = ' '; # default to space
                   1611:             #
                   1612:             my $awarded = 0;
                   1613:             if (exists($resource_data->{'resource.'.$part.'.awarded'})) {
                   1614:                 $awarded = $resource_data->{'resource.'.$part.'.awarded'};
1.67      matthew  1615:                 $awarded = 0 if (! $awarded);
1.54      matthew  1616:             }
                   1617:             #
                   1618:             $partscore = $weight*$awarded;
                   1619:             $score += $partscore;
1.63      matthew  1620:             $symbol = $partscore; 
1.70      matthew  1621:             if (abs($symbol - sprintf("%.0f",$symbol)) < 0.001) {
                   1622:                 $symbol = sprintf("%.0f",$symbol);
                   1623:             }
1.54      matthew  1624:             if (length($symbol) > 1) {
                   1625:                 $symbol = '*';
                   1626:             }
                   1627:             if (exists($resource_data->{'resource.'.$part.'.solved'})) {
                   1628:                 my $status = $resource_data->{'resource.'.$part.'.solved'};
                   1629:                 if ($status eq 'excused') {
                   1630:                     $symbol = 'x';
                   1631:                     $max -= $weight; # Do not count 'excused' problems.
                   1632:                 }
                   1633:             } else {
                   1634:                 # Unsolved.  Did they try?
                   1635:                 if (exists($resource_data->{'resource.'.$part.'.tries'})){
                   1636:                     $symbol = '.';
                   1637:                 } else {
                   1638:                     $symbol = ' ';
                   1639:                 }
                   1640:             }
                   1641:             #
1.60      matthew  1642:             if (! defined($partscore)) {
                   1643:                 $partscore = $symbol;
                   1644:             }
                   1645:             push (@ScoreData,$partscore);
                   1646:             #
1.54      matthew  1647:             if ( ($links eq 'yes' && $symbol ne ' ') || ($links eq 'all')) {
                   1648:                 $symbol = '<a href="/adm/grades'.
                   1649:                     '?symb='.&Apache::lonnet::escape($resource->{'symb'}).
                   1650:                     '&student='.$student->{'username'}.
1.64      albertel 1651:                     '&userdom='.$student->{'domain'}.
1.54      matthew  1652:                     '&command=submission">'.$symbol.'</a>';
                   1653:             }
1.60      matthew  1654:             $Str .= $symbol;
1.54      matthew  1655:         }
                   1656:     }
                   1657:     return ($Str,$performance_length,$score,$max,\@ScoreData);
1.1       stredwic 1658: }
1.23      minaeibi 1659: 
1.28      matthew  1660: #######################################################
                   1661: #######################################################
1.23      minaeibi 1662: 
1.2       stredwic 1663: =pod
                   1664: 
                   1665: =item &CreateLegend()
                   1666: 
                   1667: This function returns a formatted string containing the legend for the
                   1668: chart.  The legend describes the symbols used to represent grades for
                   1669: problems.
                   1670: 
                   1671: =cut
                   1672: 
1.28      matthew  1673: #######################################################
                   1674: #######################################################
1.2       stredwic 1675: sub CreateLegend {
                   1676:     my $Str = "<p><pre>".
1.13      minaeibi 1677:               "   1  correct by student in 1 try\n".
                   1678:               "   7  correct by student in 7 tries\n".
1.12      minaeibi 1679:               "   *  correct by student in more than 9 tries\n".
1.20      minaeibi 1680: 	      "   +  correct by hand grading or override\n".
1.12      minaeibi 1681:               "   -  incorrect by override\n".
                   1682: 	      "   .  incorrect attempted\n".
                   1683: 	      "   #  ungraded attempted\n".
1.13      minaeibi 1684:               "      not attempted (blank field)\n".
1.12      minaeibi 1685: 	      "   x  excused".
1.17      minaeibi 1686:               "</pre><p>";
1.2       stredwic 1687:     return $Str;
                   1688: }
                   1689: 
1.28      matthew  1690: #######################################################
                   1691: #######################################################
                   1692: 
1.30      matthew  1693: =pod 
1.2       stredwic 1694: 
                   1695: =back
                   1696: 
                   1697: =cut
                   1698: 
1.28      matthew  1699: #######################################################
                   1700: #######################################################
1.2       stredwic 1701: 
1.28      matthew  1702: 1;
1.2       stredwic 1703: 
1.1       stredwic 1704: __END__

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