Annotation of loncom/interface/statistics/lonstudentassessment.pm, revision 1.79

1.1       stredwic    1: # The LearningOnline Network with CAPA
                      2: #
1.79    ! matthew     3: # $Id: lonstudentassessment.pm,v 1.78 2003/12/09 17:00:07 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;
1.77      matthew    55: use Apache::loncommon();
1.1       stredwic   56: use Apache::loncoursedata;
1.28      matthew    57: use Apache::lonnet; # for logging porpoises
1.75      matthew    58: use Apache::lonlocal;
1.31      matthew    59: use Spreadsheet::WriteExcel;
1.76      matthew    60: use Spreadsheet::WriteExcel::Utility();
1.31      matthew    61: 
                     62: #######################################################
                     63: #######################################################
                     64: =pod
                     65: 
                     66: =item Package Variables
                     67: 
                     68: =over 4
                     69: 
                     70: =item $Statistics Hash ref to store student data.  Indexed by symb,
                     71:       contains hashes with keys 'score' and 'max'.
                     72: 
                     73: =cut
                     74: 
                     75: #######################################################
                     76: #######################################################
1.1       stredwic   77: 
1.30      matthew    78: my $Statistics;
                     79: 
1.28      matthew    80: #######################################################
                     81: #######################################################
                     82: 
                     83: =pod
                     84: 
1.31      matthew    85: =item $show_links 'yes' or 'no' for linking to student performance data
                     86: 
                     87: =item $output_mode 'html', 'excel', or 'csv' for output mode
                     88: 
1.32      matthew    89: =item $show 'all', 'totals', or 'scores' determines how much data is output
1.31      matthew    90: 
1.54      matthew    91: =item $data  determines what performance data is shown
                     92: 
                     93: =item $datadescription A short description of the output data selected.
                     94: 
                     95: =item $base 'tries' or 'scores' determines the base of the performance shown
                     96: 
1.49      matthew    97: =item $single_student_mode evaluates to true if we are showing only one
                     98: student.
                     99: 
1.31      matthew   100: =cut
                    101: 
                    102: #######################################################
                    103: #######################################################
                    104: my $show_links;
                    105: my $output_mode;
1.54      matthew   106: my $data;
                    107: my $base;
                    108: my $datadescription;
1.49      matthew   109: my $single_student_mode;
1.28      matthew   110: 
1.31      matthew   111: #######################################################
                    112: #######################################################
                    113: # End of package variable declarations
1.28      matthew   114: 
1.31      matthew   115: =pod
1.28      matthew   116: 
1.31      matthew   117: =back
1.28      matthew   118: 
1.31      matthew   119: =cut
1.28      matthew   120: 
1.31      matthew   121: #######################################################
                    122: #######################################################
1.28      matthew   123: 
1.31      matthew   124: =pod
1.28      matthew   125: 
1.31      matthew   126: =item &BuildStudentAssessmentPage()
1.28      matthew   127: 
1.31      matthew   128: Inputs: 
1.4       stredwic  129: 
1.31      matthew   130: =over 4
1.28      matthew   131: 
                    132: =item $r Apache Request
                    133: 
                    134: =item $c Apache Connection 
                    135: 
                    136: =back
                    137: 
                    138: =cut
                    139: 
                    140: #######################################################
                    141: #######################################################
1.1       stredwic  142: sub BuildStudentAssessmentPage {
1.30      matthew   143:     my ($r,$c)=@_;
1.74      matthew   144:     #
1.30      matthew   145:     undef($Statistics);
1.66      matthew   146:     undef($show_links);
                    147:     undef($output_mode);
                    148:     undef($data);
                    149:     undef($base);
                    150:     undef($datadescription);
                    151:     undef($single_student_mode);
1.74      matthew   152:     #
                    153:     my %Saveable_Parameters = ('Status' => 'scalar',
                    154:                                'chartoutputmode' => 'scalar',
                    155:                                'chartoutputdata' => 'scalar',
                    156:                                'Section' => 'array',
                    157:                                'StudentData' => 'array',
                    158:                                'Maps' => 'array');
                    159:     &Apache::loncommon::store_course_settings('chart',\%Saveable_Parameters);
                    160:     &Apache::loncommon::restore_course_settings('chart',\%Saveable_Parameters);
                    161:     #
                    162:     &Apache::lonstatistics::PrepareClasslist();
                    163:     #
1.65      matthew   164:     $single_student_mode = 0;
1.49      matthew   165:     $single_student_mode = 1 if ($ENV{'form.SelectedStudent'});
1.59      matthew   166:     if ($ENV{'form.selectstudent'}) {
                    167:         &Apache::lonstatistics::DisplayClasslist($r);
                    168:         return;
                    169:     }
1.30      matthew   170:     #
1.31      matthew   171:     # Print out the HTML headers for the interface
                    172:     #    This also parses the output mode selector
1.54      matthew   173:     #    This step must *always* be done.
1.30      matthew   174:     $r->print(&CreateInterface());
1.31      matthew   175:     $r->print('<input type="hidden" name="notfirstrun" value="true" />');
1.49      matthew   176:     $r->print('<input type="hidden" name="sort" value="'.
                    177:               $ENV{'form.sort'}.'" />');
1.7       stredwic  178:     $r->rflush();
1.58      matthew   179:     #
1.49      matthew   180:     if (! exists($ENV{'form.notfirstrun'}) && ! $single_student_mode) {
1.31      matthew   181:         return;
                    182:     }
                    183:     #
                    184:     my $initialize     = \&html_initialize;
                    185:     my $output_student = \&html_outputstudent;
                    186:     my $finish         = \&html_finish;
                    187:     #
                    188:     if ($output_mode eq 'excel') {
                    189:         $initialize     = \&excel_initialize;
                    190:         $output_student = \&excel_outputstudent;
                    191:         $finish         = \&excel_finish;
                    192:     } elsif ($output_mode eq 'csv') {
                    193:         $initialize     = \&csv_initialize;
                    194:         $output_student = \&csv_outputstudent;
                    195:         $finish         = \&csv_finish;
                    196:     }
1.30      matthew   197:     #
                    198:     if($c->aborted()) {  return ; }
1.31      matthew   199:     #
1.49      matthew   200:     # Determine which students we want to look at
                    201:     my @Students;
                    202:     if ($single_student_mode) {
                    203:         @Students = (&Apache::lonstatistics::current_student());
                    204:         $r->print(&next_and_previous_buttons());
                    205:         $r->rflush();
                    206:     } else {
                    207:         @Students = @Apache::lonstatistics::Students;
                    208:     }
1.56      matthew   209:     #
                    210:     # Perform generic initialization tasks
                    211:     #       Since we use lonnet::EXT to retrieve problem weights,
                    212:     #       to ensure current data we must clear the caches out.
                    213:     #       This makes sure that parameter changes at the student level
                    214:     #       are immediately reflected in the chart.
                    215:     &Apache::lonnet::clear_EXT_cache_status();
1.69      matthew   216:     #
                    217:     # Clean out loncoursedata's package data, just to be safe.
                    218:     &Apache::loncoursedata::clear_internal_caches();
1.49      matthew   219:     #
1.31      matthew   220:     # Call the initialize routine selected above
                    221:     $initialize->($r);
1.49      matthew   222:     foreach my $student (@Students) {
1.31      matthew   223:         if($c->aborted()) { 
                    224:             $finish->($r);
                    225:             return ; 
1.1       stredwic  226:         }
1.31      matthew   227:         # Call the output_student routine selected above
                    228:         $output_student->($r,$student);
                    229:     }
                    230:     # Call the "finish" routine selected above
                    231:     $finish->($r);
                    232:     #
                    233:     return;
                    234: }
                    235: 
                    236: #######################################################
                    237: #######################################################
1.49      matthew   238: sub next_and_previous_buttons {
                    239:     my $Str = '';
                    240:     $Str .= '<input type="hidden" name="SelectedStudent" value="'.
                    241:         $ENV{'form.SelectedStudent'}.'" />';
                    242:     #
                    243:     # Build the previous student link
                    244:     my $previous = &Apache::lonstatistics::previous_student();
                    245:     my $previousbutton = '';
                    246:     if (defined($previous)) {
                    247:         my $sname = $previous->{'username'}.':'.$previous->{'domain'};
                    248:         $previousbutton .= '<input type="button" value="'.
                    249:             'Previous Student ('.
                    250:             $previous->{'username'}.'@'.$previous->{'domain'}.')'.
                    251:             '" onclick="document.Statistics.SelectedStudent.value='.
                    252:             "'".$sname."'".';'.
                    253:             'document.Statistics.submit();" />';
                    254:     } else {
                    255:         $previousbutton .= '<input type="button" value="'.
                    256:             'Previous student (none)'.'" />';
                    257:     }
                    258:     #
                    259:     # Build the next student link
                    260:     my $next = &Apache::lonstatistics::next_student();
                    261:     my $nextbutton = '';
                    262:     if (defined($next)) {
                    263:         my $sname = $next->{'username'}.':'.$next->{'domain'};
                    264:         $nextbutton .= '<input type="button" value="'.
                    265:             'Next Student ('.
                    266:             $next->{'username'}.'@'.$next->{'domain'}.')'.
                    267:             '" onclick="document.Statistics.SelectedStudent.value='.
                    268:             "'".$sname."'".';'.
                    269:             'document.Statistics.submit();" />';
                    270:     } else {
                    271:         $nextbutton .= '<input type="button" value="'.
                    272:             'Next student (none)'.'" />';
                    273:     }
                    274:     #
                    275:     # Build the 'all students' button
                    276:     my $all = '';
                    277:     $all .= '<input type="button" value="All Students" '.
                    278:             '" onclick="document.Statistics.SelectedStudent.value='.
                    279:             "''".';'.'document.Statistics.submit();" />';
                    280:     $Str .= $previousbutton.('&nbsp;'x5).$all.('&nbsp;'x5).$nextbutton;
                    281:     return $Str;
                    282: }
                    283: 
                    284: #######################################################
                    285: #######################################################
1.30      matthew   286: 
1.31      matthew   287: sub get_student_fields_to_show {
                    288:     my @to_show = @Apache::lonstatistics::SelectedStudentData;
                    289:     foreach (@to_show) {
                    290:         if ($_ eq 'all') {
                    291:             @to_show = @Apache::lonstatistics::StudentDataOrder;
                    292:             last;
                    293:         }
                    294:     }
                    295:     return @to_show;
                    296: }
                    297: 
1.28      matthew   298: #######################################################
                    299: #######################################################
                    300: 
                    301: =pod
1.2       stredwic  302: 
1.28      matthew   303: =item &CreateInterface()
1.21      minaeibi  304: 
1.28      matthew   305: Called by &BuildStudentAssessmentPage to create the top part of the
                    306: page which displays the chart.
                    307: 
1.30      matthew   308: Inputs: None
1.28      matthew   309: 
                    310: Returns:  A string containing the HTML for the headers and top table for 
                    311: the chart page.
                    312: 
                    313: =cut
                    314: 
                    315: #######################################################
                    316: #######################################################
1.2       stredwic  317: sub CreateInterface {
1.4       stredwic  318:     my $Str = '';
1.30      matthew   319: #    $Str .= &CreateLegend();
                    320:     $Str .= '<table cellspacing="5">'."\n";
                    321:     $Str .= '<tr>';
1.75      matthew   322:     $Str .= '<td align="center"><b>'.&mt('Sections').'</b></td>';
                    323:     $Str .= '<td align="center"><b>'.&mt('Student Data</b>').'</td>';
                    324:     $Str .= '<td align="center"><b>'.&mt('Enrollment Status').'</b></td>';
                    325:     $Str .= '<td align="center"><b>'.&mt('Sequences and Folders').'</b></td>';
                    326:     $Str .= '<td align="center"><b>'.&mt('Output Format').'</b>'.
1.58      matthew   327:         &Apache::loncommon::help_open_topic("Chart_Output_Formats").
                    328:         '</td>';
1.75      matthew   329:     $Str .= '<td align="center"><b>'.&mt('Output Data').'</b>'.
1.58      matthew   330:         &Apache::loncommon::help_open_topic("Chart_Output_Data").
                    331:         '</td>';
1.30      matthew   332:     $Str .= '</tr>'."\n";
                    333:     #
1.4       stredwic  334:     $Str .= '<tr><td align="center">'."\n";
1.29      matthew   335:     $Str .= &Apache::lonstatistics::SectionSelect('Section','multiple',5);
1.4       stredwic  336:     $Str .= '</td><td align="center">';
1.30      matthew   337:     my $only_seq_with_assessments = sub { 
                    338:         my $s=shift;
                    339:         if ($s->{'num_assess'} < 1) { 
                    340:             return 0;
                    341:         } else { 
                    342:             return 1;
                    343:         }
                    344:     };
                    345:     $Str .= &Apache::lonstatistics::StudentDataSelect('StudentData','multiple',
                    346:                                                       5,undef);
1.46      matthew   347:     $Str .= '</td><td>'."\n";
                    348:     $Str .= &Apache::lonhtmlcommon::StatusOptions(undef,undef,5);
1.4       stredwic  349:     $Str .= '</td><td>'."\n";
1.30      matthew   350:     $Str .= &Apache::lonstatistics::MapSelect('Maps','multiple,all',5,
                    351:                                               $only_seq_with_assessments);
1.31      matthew   352:     $Str .= '</td><td>'."\n";
                    353:     $Str .= &CreateAndParseOutputSelector();
1.54      matthew   354:     $Str .= '</td><td>'."\n";
                    355:     $Str .= &CreateAndParseOutputDataSelector();
1.30      matthew   356:     $Str .= '</td></tr>'."\n";
                    357:     $Str .= '</table>'."\n";
1.75      matthew   358:     $Str .= '<input type="submit" name="Generate Chart" value="'.
                    359:         &mt('Generate Chart').'" />';
1.59      matthew   360:     $Str .= '&nbsp;'x5;
1.75      matthew   361:     $Str .= '<input type="submit" name="selectstudent" value="'.
                    362:         &mt('Select One Student').'" />';
1.59      matthew   363:     $Str .= '&nbsp;'x5;
1.75      matthew   364:     $Str .= '<input type="submit" name="ClearCache" value="'.
                    365:         &mt('Clear Caches').'" />';
1.61      www       366:     $Str .= '&nbsp;'x5;
                    367:     $Str .= '<br />';
1.4       stredwic  368:     return $Str;
1.1       stredwic  369: }
1.30      matthew   370: 
                    371: #######################################################
                    372: #######################################################
                    373: 
                    374: =pod
                    375: 
1.31      matthew   376: =item &CreateAndParseOutputSelector()
1.30      matthew   377: 
                    378: =cut
                    379: 
                    380: #######################################################
                    381: #######################################################
1.32      matthew   382: my @OutputOptions = 
                    383:     ({ name  => 'HTML, with links',
                    384:        value => 'html, with links',
1.33      matthew   385:        description => 'Output HTML with each symbol linked to the problem '.
1.35      matthew   386: 	   'which generated it.',
                    387:        mode => 'html',
                    388:        show_links => 'yes',
                    389:        },
1.47      matthew   390:      { name  => 'HTML, with all links',
                    391:        value => 'html, with all links',
                    392:        description => 'Output HTML with each symbol linked to the problem '.
                    393: 	   'which generated it.  '.
                    394:            'This includes links for unattempted problems.',
                    395:        mode => 'html',
                    396:        show_links => 'all',
                    397:        },
1.32      matthew   398:      { name  => 'HTML, without links',
                    399:        value => 'html, without links',
1.33      matthew   400:        description => 'Output HTML.  By not including links, the size of the'.
                    401: 	   ' web page is greatly reduced.  If your browser crashes on the '.
1.35      matthew   402: 	   'full display, try this.',
                    403:        mode => 'html',
                    404:        show_links => 'no',
                    405:            },
1.54      matthew   406:      { name  => 'Excel',
                    407:        value => 'excel',
                    408:        description => 'Output an Excel file (compatable with Excel 95).',
1.35      matthew   409:        mode => 'excel',
                    410:        show_links => 'no',
1.54      matthew   411:    },
                    412:      { name  => 'CSV',
                    413:        value => 'csv',
                    414:        description => 'Output a comma seperated values file suitable for '.
1.57      matthew   415:            'import into a spreadsheet program.  Using this method as opposed '.
                    416:            'to Excel output allows you to organize your data before importing'.
                    417:            ' it into a spreadsheet program.',
1.35      matthew   418:        mode => 'csv',
                    419:        show_links => 'no',
                    420:            },
1.32      matthew   421:      );
                    422: 
1.33      matthew   423: sub OutputDescriptions {
                    424:     my $Str = '';
1.58      matthew   425:     $Str .= "<h2>Output Formats</h2>\n";
1.33      matthew   426:     $Str .= "<dl>\n";
                    427:     foreach my $outputmode (@OutputOptions) {
                    428: 	$Str .="    <dt>".$outputmode->{'name'}."</dt>\n";
                    429: 	$Str .="        <dd>".$outputmode->{'description'}."</dd>\n";
                    430:     }
                    431:     $Str .= "</dl>\n";
                    432:     return $Str;
                    433: }
                    434: 
1.31      matthew   435: sub CreateAndParseOutputSelector {
                    436:     my $Str = '';
1.44      matthew   437:     my $elementname = 'chartoutputmode';
1.73      matthew   438:     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
                    439:                                             [$elementname]);
1.31      matthew   440:     #
                    441:     # Format for output options is 'mode, restrictions';
1.50      matthew   442:     my $selected = 'html, without links';
1.31      matthew   443:     if (exists($ENV{'form.'.$elementname})) {
                    444:         if (ref($ENV{'form.'.$elementname} eq 'ARRAY')) {
                    445:             $selected = $ENV{'form.'.$elementname}->[0];
                    446:         } else {
                    447:             $selected = $ENV{'form.'.$elementname};
                    448:         }
                    449:     }
                    450:     #
                    451:     # Set package variables describing output mode
                    452:     $show_links  = 'no';
                    453:     $output_mode = 'html';
1.35      matthew   454:     foreach my $option (@OutputOptions) {
                    455:         next if ($option->{'value'} ne $selected);
                    456:         $output_mode = $option->{'mode'};
                    457:         $show_links  = $option->{'show_links'};
1.31      matthew   458:     }
1.35      matthew   459: 
1.31      matthew   460:     #
                    461:     # Build the form element
                    462:     $Str = qq/<select size="5" name="$elementname">/;
1.32      matthew   463:     foreach my $option (@OutputOptions) {
                    464:         $Str .= "\n".'    <option value="'.$option->{'value'}.'"';
                    465:         $Str .= " selected " if ($option->{'value'} eq $selected);
1.75      matthew   466:         $Str .= ">".&mt($option->{'name'})."<\/option>";
1.31      matthew   467:     }
                    468:     $Str .= "\n</select>";
                    469:     return $Str;
                    470: }
1.30      matthew   471: 
1.54      matthew   472: ##
                    473: ## Data selector stuff
                    474: ##
                    475: my @OutputDataOptions =
1.57      matthew   476:     (
1.72      matthew   477:      { name  => 'Scores Summary',
1.57      matthew   478:        base  => 'scores',
                    479:        value => 'sum and total',
                    480:        shortdesc => 'Total Score and Maximum Possible for each '.
                    481:            'Sequence or Folder',
                    482:        longdesc => 'The score of each student as well as the '.
                    483:            ' maximum possible on each Sequence or Folder.',
                    484:        },
1.71      matthew   485:      { name  => 'Scores Per Problem',
1.57      matthew   486:        base  => 'scores',
1.71      matthew   487:        value => 'scores',
                    488:        shortdesc => 'Score on each Problem Part',
                    489:        longdesc =>'The students score on each problem part, computed as'.
                    490:            'the part weight * part awarded',
1.57      matthew   491:        },
1.71      matthew   492: #     { name  => 'Scores Sum',
                    493: #       base  => 'scores',
                    494: #       value => 'sum only',
                    495: #       shortdesc => 'Sum of Scores on each Problem Part',
                    496: #       longdesc =>'The total of the scores of the student on each problem'.
                    497: #           ' part in the sequences or folders selected.',
                    498: #       },
                    499: #     { name  => 'Scores Summary Table Only',
                    500: #       base  => 'scores',
                    501: #       value => 'final table scores',
                    502: #       shortdesc => 'Summary of Scores',
                    503: #       longdesc  => 'The average score on each sequence or folder for the '.
                    504: #           'selected students.',
                    505: #       },
1.57      matthew   506:      { name  =>'Tries',
                    507:        base  =>'tries',
                    508:        value => 'tries',
                    509:        shortdesc => 'Number of Tries before success on each Problem Part',
                    510:        longdesc =>'The number of tries before success on each problem part.',
                    511:        },
                    512:      { name  =>'Parts Correct',
                    513:        base  =>'tries',
                    514:        value => 'parts correct total',
                    515:        shortdesc => 'Number of Problem Parts completed successfully.',
                    516:        longdesc => 'The Number of Problem Parts completed successfully and '.
                    517:            'the maximum possible for each student',
                    518:        },
1.71      matthew   519: #     { name  =>'Parts Correct',
                    520: #       base  =>'tries',
                    521: #       value => 'parts correct',
                    522: #       shortdesc => 'Number of Problem Parts completed successfully.',
                    523: #       longdesc => 'The Number of Problem Parts completed successfully'.
                    524: #           ' on each sequence or folder.',
                    525: #       },
                    526: #     { name  => 'Parts Summary Table Only',
                    527: #       base  => 'tries',
                    528: #       value => 'final table parts',
                    529: #       shortdesc => 'Summary of Parts Correct',
                    530: #       longdesc  => 'A summary table of the average number of problem parts '.
                    531: #           'students were able to get correct on each sequence.',
                    532: #       },
1.57      matthew   533:      );
                    534: 
                    535: sub HTMLifyOutputDataDescriptions {
                    536:     my $Str = '';
1.58      matthew   537:     $Str .= "<h2>Output Data</h2>\n";
1.57      matthew   538:     $Str .= "<dl>\n";
                    539:     foreach my $option (@OutputDataOptions) {
                    540:         $Str .= '    <dt>'.$option->{'name'}.'</dt>';
                    541:         $Str .= '<dd>'.$option->{'longdesc'}.'</dd>'."\n";
                    542:     }
                    543:     $Str .= "</dl>\n";
                    544:     return $Str;
                    545: }
1.54      matthew   546: 
                    547: sub CreateAndParseOutputDataSelector {
                    548:     my $Str = '';
                    549:     my $elementname = 'chartoutputdata';
                    550:     #
                    551:     my $selected = 'scores';
                    552:     if (exists($ENV{'form.'.$elementname})) {
                    553:         if (ref($ENV{'form.'.$elementname} eq 'ARRAY')) {
                    554:             $selected = $ENV{'form.'.$elementname}->[0];
                    555:         } else {
                    556:             $selected = $ENV{'form.'.$elementname};
                    557:         }
                    558:     }
                    559:     #
                    560:     $data = 'scores';
                    561:     foreach my $option (@OutputDataOptions) {
                    562:         if ($option->{'value'} eq $selected) {
                    563:             $data = $option->{'value'};
                    564:             $base = $option->{'base'};
                    565:             $datadescription = $option->{'shortdesc'};
                    566:         }
                    567:     }
                    568:     #
                    569:     # Build the form element
                    570:     $Str = qq/<select size="5" name="$elementname">/;
                    571:     foreach my $option (@OutputDataOptions) {
                    572:         $Str .= "\n".'    <option value="'.$option->{'value'}.'"';
                    573:         $Str .= " selected " if ($option->{'value'} eq $data);
1.75      matthew   574:         $Str .= ">".&mt($option->{'name'})."<\/option>";
1.54      matthew   575:     }
                    576:     $Str .= "\n</select>";
                    577:     return $Str;
                    578: 
                    579: }
                    580: 
1.28      matthew   581: #######################################################
                    582: #######################################################
1.1       stredwic  583: 
1.28      matthew   584: =pod
                    585: 
1.31      matthew   586: =head2 HTML output routines
1.28      matthew   587: 
1.31      matthew   588: =item &html_initialize($r)
1.28      matthew   589: 
1.31      matthew   590: Create labels for the columns of student data to show.
1.28      matthew   591: 
1.31      matthew   592: =item &html_outputstudent($r,$student)
1.28      matthew   593: 
1.31      matthew   594: Return a line of the chart for a student.
1.28      matthew   595: 
1.31      matthew   596: =item &html_finish($r)
1.28      matthew   597: 
                    598: =cut
                    599: 
                    600: #######################################################
                    601: #######################################################
1.31      matthew   602: {
                    603:     my $padding;
                    604:     my $count;
                    605: 
1.39      matthew   606:     my $nodata_count; # The number of students for which there is no data
                    607:     my %prog_state;   # progress state used by loncommon PrgWin routines
                    608: 
1.31      matthew   609: sub html_initialize {
                    610:     my ($r) = @_;
1.30      matthew   611:     #
                    612:     $padding = ' 'x3;
1.35      matthew   613:     $count = 0;
1.39      matthew   614:     $nodata_count = 0;
1.66      matthew   615:     undef(%prog_state);
1.30      matthew   616:     #
1.38      matthew   617:     $r->print("<h3>".$ENV{'course.'.$ENV{'request.course.id'}.'.description'}.
                    618:               "&nbsp;&nbsp;".localtime(time)."</h3>");
1.39      matthew   619: 
1.55      matthew   620:     if ($data !~ /^final table/) {
                    621:         $r->print("<h3>".$datadescription."</h3>");        
                    622:     }
1.39      matthew   623:     #
                    624:     # Set up progress window for 'final table' display only
1.54      matthew   625:     if ($data =~ /^final table/) {
1.39      matthew   626:         my $studentcount = scalar(@Apache::lonstatistics::Students); 
                    627:         %prog_state=&Apache::lonhtmlcommon::Create_PrgWin
                    628:             ($r,'Summary Table Status',
                    629:              'Summary Table Compilation Progress', $studentcount);
                    630:     }
1.31      matthew   631:     my $Str = "<pre>\n";
1.30      matthew   632:     # First, the @StudentData fields need to be listed
1.31      matthew   633:     my @to_show = &get_student_fields_to_show();
1.30      matthew   634:     foreach my $field (@to_show) {
                    635:         my $title=$Apache::lonstatistics::StudentData{$field}->{'title'};
                    636:         my $base =$Apache::lonstatistics::StudentData{$field}->{'base_width'};
                    637:         my $width=$Apache::lonstatistics::StudentData{$field}->{'width'};
                    638:         $Str .= $title.' 'x($width-$base).$padding;
                    639:     }
                    640:     # Now the selected sequences need to be listed
1.40      matthew   641:     foreach my $sequence (&Apache::lonstatistics::Sequences_with_Assess()){
1.31      matthew   642:         my $title = $sequence->{'title'};
                    643:         my $base  = $sequence->{'base_width'};
                    644:         my $width = $sequence->{'width'};
                    645:         $Str .= $title.' 'x($width-$base).$padding;
1.30      matthew   646:     }
1.54      matthew   647:     $Str .= "total</pre>\n";
1.31      matthew   648:     $Str .= "<pre>";
1.39      matthew   649:     #
                    650:     # Check for suppression of output
1.54      matthew   651:     if ($data =~ /^final table/) {
1.39      matthew   652:         $Str = '';
                    653:     }
1.31      matthew   654:     $r->print($Str);
                    655:     $r->rflush();
                    656:     return;
1.30      matthew   657: }
                    658: 
1.31      matthew   659: sub html_outputstudent {
                    660:     my ($r,$student) = @_;
1.2       stredwic  661:     my $Str = '';
1.35      matthew   662:     #
1.55      matthew   663:     if($count++ % 5 == 0 && $count > 0 && $data !~ /^final table/) {
1.35      matthew   664:         $r->print("</pre><pre>");
                    665:     }
1.30      matthew   666:     # First, the @StudentData fields need to be listed
1.31      matthew   667:     my @to_show = &get_student_fields_to_show();
1.30      matthew   668:     foreach my $field (@to_show) {
                    669:         my $title=$student->{$field};
1.31      matthew   670:         my $base = length($title);
1.30      matthew   671:         my $width=$Apache::lonstatistics::StudentData{$field}->{'width'};
                    672:         $Str .= $title.' 'x($width-$base).$padding;
                    673:     }
                    674:     # Get ALL the students data
                    675:     my %StudentsData;
                    676:     my @tmp = &Apache::loncoursedata::get_current_state
                    677:         ($student->{'username'},$student->{'domain'},undef,
                    678:          $ENV{'request.course.id'});
                    679:     if ((scalar @tmp > 0) && ($tmp[0] !~ /^error:/)) {
                    680:         %StudentsData = @tmp;
                    681:     }
                    682:     if (scalar(@tmp) < 1) {
1.39      matthew   683:         $nodata_count++;
1.54      matthew   684:         return if ($data =~ /^final table/);
1.30      matthew   685:         $Str .= '<font color="blue">No Course Data</font>'."\n";
1.31      matthew   686:         $r->print($Str);
                    687:         $r->rflush();
                    688:         return;
1.30      matthew   689:     }
                    690:     #
                    691:     # By sequence build up the data
                    692:     my $studentstats;
1.31      matthew   693:     my $PerformanceStr = '';
1.40      matthew   694:     foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
1.54      matthew   695:         my ($performance,$performance_length,$score,$seq_max,$rawdata);
                    696:         if ($base eq 'tries') {
                    697:             ($performance,$performance_length,$score,$seq_max,$rawdata) =
                    698:                 &StudentTriesOnSequence($student,\%StudentsData,
                    699:                                         $seq,$show_links);
                    700:         } else {
                    701:             ($performance,$performance_length,$score,$seq_max,$rawdata) =
                    702:                 &StudentPerformanceOnSequence($student,\%StudentsData,
                    703:                                               $seq,$show_links);
                    704:         }
                    705:         my $ratio = sprintf("%3d",$score).'/'.sprintf("%3d",$seq_max);
1.31      matthew   706:         #
1.54      matthew   707:         if ($data eq 'sum and total' || $data eq 'parts correct total') {
                    708:             $performance  = $ratio;
                    709:             $performance .= ' 'x($seq->{'width'}-length($ratio));
                    710:         } elsif ($data eq 'sum only' || $data eq 'parts correct') {
                    711:             $performance  = $score;
                    712:             $performance .= ' 'x($seq->{'width'}-length($score));
1.31      matthew   713:         } else {
                    714:             # Pad with extra spaces
1.51      matthew   715:             $performance .= ' 'x($seq->{'width'}-$performance_length-
1.31      matthew   716:                                  length($ratio)
                    717:                                  ).$ratio;
1.30      matthew   718:         }
1.31      matthew   719:         #
                    720:         $Str .= $performance.$padding;
                    721:         #
                    722:         $studentstats->{$seq->{'symb'}}->{'score'}= $score;
                    723:         $studentstats->{$seq->{'symb'}}->{'max'}  = $seq_max;
1.30      matthew   724:     }
                    725:     #
                    726:     # Total it up and store the statistics info.
                    727:     my ($score,$max) = (0,0);
                    728:     while (my ($symb,$seq_stats) = each (%{$studentstats})) {
                    729:         $Statistics->{$symb}->{'score'} += $seq_stats->{'score'};
1.54      matthew   730:         if ($Statistics->{$symb}->{'max'} < $seq_stats->{'max'}) {
                    731:             $Statistics->{$symb}->{'max'} = $seq_stats->{'max'};
                    732:         }
1.30      matthew   733:         $score += $seq_stats->{'score'};
                    734:         $max   += $seq_stats->{'max'};
                    735:     }
1.31      matthew   736:     $Str .= ' '.' 'x(length($max)-length($score)).$score.'/'.$max;
1.30      matthew   737:     $Str .= " \n";
1.39      matthew   738:     #
                    739:     # Check for suppressed output and update the progress window if so...
1.54      matthew   740:     if ($data =~ /^final table/) {
1.39      matthew   741:         $Str = '';
                    742:         &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,
                    743:                                                  'last student');
                    744:     }
                    745:     #
1.31      matthew   746:     $r->print($Str);
                    747:     #
                    748:     $r->rflush();
                    749:     return;
1.30      matthew   750: }    
1.2       stredwic  751: 
1.31      matthew   752: sub html_finish {
                    753:     my ($r) = @_;
1.39      matthew   754:     #
                    755:     # Check for suppressed output and close the progress window if so
1.54      matthew   756:     if ($data =~ /^final table/) {
1.39      matthew   757:         &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
                    758:     } else {
                    759:         $r->print("</pre>\n"); 
                    760:     }
1.49      matthew   761:     if ($single_student_mode) {
                    762:         $r->print(&SingleStudentTotal());
                    763:     } else {
                    764:         $r->print(&StudentAverageTotal());
                    765:     }
1.31      matthew   766:     $r->rflush();
                    767:     return;
                    768: }
                    769: 
1.39      matthew   770: sub StudentAverageTotal {
                    771:     my $Str = "<h3>Summary Tables</h3>\n";
                    772:     my $num_students = scalar(@Apache::lonstatistics::Students);
                    773:     my $total_ave = 0;
                    774:     my $total_max = 0;
                    775:     $Str .= '<table border=2 cellspacing="1">'."\n";
                    776:     $Str .= "<tr><th>Title</th><th>Average</th><th>Maximum</th></tr>\n";
1.40      matthew   777:     foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
1.42      matthew   778:         my $ave;
                    779:         if ($num_students > $nodata_count) {
                    780:             $ave = int(100*($Statistics->{$seq->{'symb'}}->{'score'}/
                    781:                             ($num_students-$nodata_count)))/100;
                    782:         } else {
                    783:             $ave = 0;
                    784:         }
1.39      matthew   785:         $total_ave += $ave;
1.54      matthew   786:         my $max = $Statistics->{$seq->{'symb'}}->{'max'};
1.39      matthew   787:         $total_max += $max;
                    788:         if ($ave == 0) {
                    789:             $ave = "0.00";
                    790:         }
                    791:         $ave .= '&nbsp;';
                    792:         $max .= '&nbsp;&nbsp;&nbsp;';
                    793:         $Str .= '<tr><td>'.$seq->{'title'}.'</td>'.
                    794:             '<td align="right">'.$ave.'</td>'.
                    795:                 '<td align="right">'.$max.'</td></tr>'."\n";
                    796:     }
                    797:     $total_ave = int(100*$total_ave)/100; # only two digit
                    798:     $Str .= "</table>\n";
                    799:     $Str .= '<table border=2 cellspacing="1">'."\n";
                    800:     $Str .= '<tr><th>Number of Students</th><th>Average</th>'.
                    801:         "<th>Maximum</th></tr>\n";
                    802:     $Str .= '<tr><td>'.($num_students-$nodata_count).'</td>'.
                    803:         '<td>'.$total_ave.'</td><td>'.$total_max.'</td>';
                    804:     $Str .= "</table>\n";
                    805:     return $Str;
                    806: }
                    807: 
1.49      matthew   808: sub SingleStudentTotal {
                    809:     my $student = &Apache::lonstatistics::current_student();
1.52      matthew   810:     my $Str = "<h3>Summary table for ".$student->{'fullname'}." ".
                    811:         $student->{'username'}.'@'.$student->{'domain'}."</h3>\n";
1.49      matthew   812:     $Str .= '<table border=2 cellspacing="1">'."\n";
                    813:     $Str .= 
                    814:         "<tr><th>Sequence or Folder</th><th>Score</th><th>Maximum</th></tr>\n";
                    815:     my $total = 0;
                    816:     my $total_max = 0;
                    817:     foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
                    818:         my $value = $Statistics->{$seq->{'symb'}}->{'score'};
                    819:         my $max = $Statistics->{$seq->{'symb'}}->{'max'};
                    820:         $Str .= '<tr><td>'.$seq->{'title'}.'</td>'.
                    821:             '<td align="right">'.$value.'</td>'.
                    822:                 '<td align="right">'.$max.'</td></tr>'."\n";
                    823:         $total += $value;
                    824:         $total_max +=$max;
                    825:     }
                    826:     $Str .= '<tr><td><b>Total</b></td>'.
                    827:         '<td align="right">'.$total.'</td>'.
                    828:         '<td align="right">'.$total_max."</td></tr>\n";
                    829:     $Str .= "</table>\n";
                    830:     return $Str;
                    831: }
                    832: 
1.31      matthew   833: }
                    834: 
                    835: #######################################################
                    836: #######################################################
                    837: 
                    838: =pod
                    839: 
                    840: =head2 EXCEL subroutines
                    841: 
                    842: =item &excel_initialize($r)
                    843: 
                    844: =item &excel_outputstudent($r,$student)
                    845: 
                    846: =item &excel_finish($r)
                    847: 
                    848: =cut
                    849: 
                    850: #######################################################
                    851: #######################################################
                    852: {
                    853: 
                    854: my $excel_sheet;
1.32      matthew   855: my $excel_workbook;
                    856: 
                    857: my $filename;
                    858: my $rows_output;
                    859: my $cols_output;
                    860: 
1.36      matthew   861: my %prog_state; # progress window state
1.54      matthew   862: my $request_aborted;
1.31      matthew   863: 
1.76      matthew   864: my $total_formula;
                    865: 
1.31      matthew   866: sub excel_initialize {
                    867:     my ($r) = @_;
                    868:     #
1.66      matthew   869:     undef ($excel_sheet);
                    870:     undef ($excel_workbook);
                    871:     undef ($filename);
                    872:     undef ($rows_output);
                    873:     undef ($cols_output);
                    874:     undef (%prog_state);
                    875:     undef ($request_aborted);
1.76      matthew   876:     undef ($total_formula);
1.66      matthew   877:     #
1.54      matthew   878:     my $total_columns = scalar(&get_student_fields_to_show());
                    879:     foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
                    880:         # Add 2 because we need a 'sum' and 'total' column for each
                    881:         $total_columns += $seq->{'num_assess_parts'}+2;
                    882:     }
                    883:     if ($data eq 'tries' && $total_columns > 255) {
                    884:         $r->print(<<END);
                    885: <h2>Unable to Complete Request</h2>
                    886: <p>
                    887: LON-CAPA is unable to produce your Excel spreadsheet because your selections
                    888: will result in more than 255 columns.  Excel allows only 255 columns in a
                    889: spreadsheet.
                    890: </p><p>
                    891: You may consider reducing the number of <b>Sequences or Folders</b> you
                    892: have selected.  
                    893: </p><p>
                    894: LON-CAPA can produce <b>CSV</b> files of this data or Excel files of the
                    895: summary data (<b>Parts Correct</b> or <b>Parts Correct & Totals</b>).
                    896: </p>
                    897: END
                    898:        $request_aborted = 1;
                    899:     }
                    900:     if ($data eq 'scores' && $total_columns > 255) {
                    901:         $r->print(<<END);
                    902: <h2>Unable to Complete Request</h2>
                    903: <p>
                    904: LON-CAPA is unable to produce your Excel spreadsheet because your selections
                    905: will result in more than 255 columns.  Excel allows only 255 columns in a
                    906: spreadsheet.
                    907: </p><p>
                    908: You may consider reducing the number of <b>Sequences or Folders</b> you
                    909: have selected.  
                    910: </p><p>
                    911: LON-CAPA can produce <b>CSV</b> files of this data or Excel files of the
                    912: summary data (<b>Scores Sum</b> or <b>Scores Sum & Totals</b>).
                    913: </p>
                    914: END
                    915:        $request_aborted = 1;
                    916:     }
                    917:     if ($data =~ /^final table/) {
                    918:         $r->print(<<END);
                    919: <h2>Unable to Complete Request</h2>
                    920: <p>
                    921: The <b>Summary Table (Scores)</b> option is not available for non-HTML output.
                    922: </p>
                    923: END
                    924:        $request_aborted = 1;
                    925:     }
                    926:     return if ($request_aborted);
                    927:     #
1.32      matthew   928:     $filename = '/prtspool/'.
1.31      matthew   929:         $ENV{'user.name'}.'_'.$ENV{'user.domain'}.'_'.
                    930:             time.'_'.rand(1000000000).'.xls';
1.32      matthew   931:     #
                    932:     $excel_workbook = undef;
                    933:     $excel_sheet = undef;
                    934:     #
                    935:     $rows_output = 0;
                    936:     $cols_output = 0;
                    937:     #
                    938:     # Create sheet
                    939:     $excel_workbook = Spreadsheet::WriteExcel->new('/home/httpd'.$filename);
                    940:     #
                    941:     # Check for errors
                    942:     if (! defined($excel_workbook)) {
1.31      matthew   943:         $r->log_error("Error creating excel spreadsheet $filename: $!");
                    944:         $r->print("Problems creating new Excel file.  ".
                    945:                   "This error has been logged.  ".
                    946:                   "Please alert your LON-CAPA administrator");
1.32      matthew   947:         return ;
1.31      matthew   948:     }
                    949:     #
                    950:     # The excel spreadsheet stores temporary data in files, then put them
                    951:     # together.  If needed we should be able to disable this (memory only).
                    952:     # The temporary directory must be specified before calling 'addworksheet'.
                    953:     # File::Temp is used to determine the temporary directory.
1.32      matthew   954:     $excel_workbook->set_tempdir($Apache::lonnet::tmpdir);
                    955:     #
                    956:     # Add a worksheet
1.33      matthew   957:     my $sheetname = $ENV{'course.'.$ENV{'request.course.id'}.'.description'};
1.67      matthew   958:     $sheetname = &Apache::loncommon::clean_excel_name($sheetname);
1.33      matthew   959:     $excel_sheet = $excel_workbook->addworksheet($sheetname);
1.32      matthew   960:     #
1.34      matthew   961:     # Put the course description in the header
                    962:     $excel_sheet->write($rows_output,$cols_output++,
                    963:                    $ENV{'course.'.$ENV{'request.course.id'}.'.description'});
                    964:     $cols_output += 3;
                    965:     #
                    966:     # Put a description of the sections listed
                    967:     my $sectionstring = '';
                    968:     my @Sections = @Apache::lonstatistics::SelectedSections;
                    969:     if (scalar(@Sections) > 1) {
                    970:         if (scalar(@Sections) > 2) {
                    971:             my $last = pop(@Sections);
                    972:             $sectionstring = "Sections ".join(', ',@Sections).', and '.$last;
                    973:         } else {
                    974:             $sectionstring = "Sections ".join(' and ',@Sections);
                    975:         }
                    976:     } else {
                    977:         if ($Sections[0] eq 'all') {
                    978:             $sectionstring = "All sections";
                    979:         } else {
                    980:             $sectionstring = "Section ".$Sections[0];
                    981:         }
                    982:     }
                    983:     $excel_sheet->write($rows_output,$cols_output++,$sectionstring);
                    984:     $cols_output += scalar(@Sections);
                    985:     #
                    986:     # Put the date in there too
1.54      matthew   987:     $excel_sheet->write($rows_output++,$cols_output++,
1.34      matthew   988:                         'Compiled on '.localtime(time));
                    989:     #
1.54      matthew   990:     $cols_output = 0;
                    991:     $excel_sheet->write($rows_output++,$cols_output++,$datadescription);
                    992:     #
                    993:     if ($data eq 'tries' || $data eq 'scores') {
                    994:         $rows_output++;
                    995:     }
1.34      matthew   996:     #
1.32      matthew   997:     # Add the student headers
1.34      matthew   998:     $cols_output = 0;
1.32      matthew   999:     foreach my $field (&get_student_fields_to_show()) {
1.34      matthew  1000:         $excel_sheet->write($rows_output,$cols_output++,$field);
1.32      matthew  1001:     }
1.54      matthew  1002:     my $row_offset = 0;
                   1003:     if ($data eq 'tries' || $data eq 'scores') {
                   1004:         $row_offset = -1;
                   1005:     }
1.32      matthew  1006:     #
1.54      matthew  1007:     # Add the remaining column headers
1.76      matthew  1008:     my $total_formula_string = '=0';
1.40      matthew  1009:     foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
1.54      matthew  1010:         $excel_sheet->write($rows_output+$row_offset,
                   1011:                             $cols_output,$seq->{'title'});
                   1012:         if ($data eq 'tries' || $data eq 'scores') {
1.76      matthew  1013:             # Determine starting cell
                   1014:             $seq->{'Excel:startcell'}=
                   1015:                 &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
                   1016:                 ($rows_output,$cols_output);
                   1017:             $seq->{'Excel:startcol'}=$cols_output;
                   1018:             # Put the names of the problems and parts into the sheet
1.54      matthew  1019:             foreach my $res (@{$seq->{'contents'}}) {
                   1020:                 next if ($res->{'type'} ne 'assessment');
                   1021:                 if (scalar(@{$res->{'parts'}}) > 1) {
                   1022:                     foreach my $part (@{$res->{'parts'}}) {
                   1023:                         $excel_sheet->write($rows_output,
                   1024:                                             $cols_output++,
                   1025:                                             $res->{'title'}.' part '.$part);
                   1026:                     }
                   1027:                 } else {
                   1028:                     $excel_sheet->write($rows_output,
                   1029:                                         $cols_output++,
                   1030:                                         $res->{'title'});
                   1031:                 }
                   1032:             }
1.76      matthew  1033:             # Determine ending cell
                   1034:             $seq->{'Excel:endcell'} = 
                   1035:                 &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
                   1036:                                              ($rows_output,$cols_output-1);
                   1037:             $seq->{'Excel:endcol'}=$cols_output-1;
                   1038:             # Create the formula for summing up this sequence
                   1039:             $seq->{'Excel:sum'}= $excel_sheet->store_formula
                   1040:                                         ('=SUM('.$seq->{'Excel:startcell'}.
                   1041:                                              ':'.$seq->{'Excel:endcell'}.')');
1.79    ! matthew  1042:         }
        !          1043:         # Determine cell the score is held in
        !          1044:         $seq->{'Excel:scorecell'} = 
        !          1045:             &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
        !          1046:             ($rows_output,$cols_output);
        !          1047:         $seq->{'Excel:scorecol'}=$cols_output;
        !          1048:         if ($data eq 'parts correct total') {
        !          1049:             $excel_sheet->write($rows_output,$cols_output++,'parts correct');
1.32      matthew  1050:         } else {
1.79    ! matthew  1051:             $excel_sheet->write($rows_output,$cols_output++,'score');
1.32      matthew  1052:         }
1.79    ! matthew  1053:         #
        !          1054:         $total_formula_string.='+'.
        !          1055:             &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
        !          1056:             ($rows_output,$cols_output-1);
        !          1057:         $excel_sheet->write($rows_output,$cols_output++,'maximum');
1.32      matthew  1058:     }
1.79    ! matthew  1059:     $excel_sheet->write($rows_output,$cols_output++,'Grand Total');
1.76      matthew  1060:     $total_formula = $excel_sheet->store_formula($total_formula_string);
1.32      matthew  1061:     #
                   1062:     # Bookkeeping
1.54      matthew  1063:     if ($data eq 'sum and total' || $data eq 'parts correct total') {
1.34      matthew  1064:         $rows_output += 2;
1.32      matthew  1065:     } else {
1.34      matthew  1066:         $rows_output += 1;
1.45      matthew  1067:     }
                   1068:     #
                   1069:     # Output a row for MAX
1.54      matthew  1070:     $cols_output = 0;
                   1071:     foreach my $field (&get_student_fields_to_show()) {
                   1072:         if ($field eq 'username' || $field eq 'fullname' || 
                   1073:             $field eq 'id') {
                   1074:             $excel_sheet->write($rows_output,$cols_output++,'Maximum');
                   1075:         } else {
                   1076:             $excel_sheet->write($rows_output,$cols_output++,'');
                   1077:         }
                   1078:     }
                   1079:     #
                   1080:     # Add the maximums for each sequence or assessment
1.76      matthew  1081:     my %total_cell_translation;
1.79    ! matthew  1082:     my $grand_total = 0;
1.54      matthew  1083:     foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
1.76      matthew  1084:         $total_cell_translation{$seq->{'Excel:scorecell'}} = 
                   1085:             &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
                   1086:                         ($rows_output,$seq->{'Excel:scorecol'});
1.54      matthew  1087:         my $weight;
                   1088:         my $max = 0;
                   1089:         foreach my $resource (@{$seq->{'contents'}}) {
                   1090:             next if ($resource->{'type'} ne 'assessment');
                   1091:             foreach my $part (@{$resource->{'parts'}}) {
                   1092:                 $weight = 1;
                   1093:                 if ($base eq 'scores') {
                   1094:                     $weight = &Apache::lonnet::EXT
                   1095:                         ('resource.'.$part.'.weight',$resource->{'symb'},
                   1096:                          undef,undef,undef);
                   1097:                     if (!defined($weight) || ($weight eq '')) { 
                   1098:                         $weight=1;
                   1099:                     }
                   1100:                 }
                   1101:                 if ($data eq 'scores') {
                   1102:                     $excel_sheet->write($rows_output,$cols_output++,$weight);
                   1103:                 } elsif ($data eq 'tries') {
                   1104:                     $excel_sheet->write($rows_output,$cols_output++,'');
                   1105:                 }
                   1106:                 $max += $weight;
1.45      matthew  1107:             }
1.54      matthew  1108:         } 
                   1109:         if (! ($data eq 'sum only' || $data eq 'parts correct')) {
                   1110:             $excel_sheet->write($rows_output,$cols_output++,'');
1.45      matthew  1111:         }
1.79    ! matthew  1112:         #
        !          1113:         if ($data eq 'tries' || $data eq 'scores') {
        !          1114:             my %replaceCells;
        !          1115:             $replaceCells{$seq->{'Excel:startcell'}} = 
        !          1116:                 &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
        !          1117:                 ($rows_output,$seq->{'Excel:startcol'});
        !          1118:             $replaceCells{$seq->{'Excel:endcell'}} = 
        !          1119:                 &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
        !          1120:                 ($rows_output,$seq->{'Excel:endcol'});
        !          1121:             $excel_sheet->repeat_formula($rows_output,$cols_output++,
        !          1122:                                          $seq->{'Excel:sum'},undef,
        !          1123:                                          %replaceCells);
        !          1124:         } else {
        !          1125:             $excel_sheet->write($rows_output,$cols_output++,
        !          1126:                                 $max);
        !          1127:         }
        !          1128:         $grand_total+=$max;
        !          1129:     }
        !          1130:     if ($data eq 'tries' || $data eq 'scores') {
1.76      matthew  1131:         $excel_sheet->repeat_formula($rows_output,$cols_output++,
1.79    ! matthew  1132:                                      $total_formula,undef,
        !          1133:                                      %total_cell_translation);
        !          1134:     } else {
        !          1135:         $excel_sheet->write($rows_output,$cols_output++,$grand_total);
1.76      matthew  1136:     }
1.54      matthew  1137:     $rows_output++;
1.32      matthew  1138:     #
                   1139:     # Let the user know what we are doing
                   1140:     my $studentcount = scalar(@Apache::lonstatistics::Students); 
                   1141:     $r->print("<h1>Compiling Excel spreadsheet for ".
                   1142:               $studentcount.' student');
                   1143:     $r->print('s') if ($studentcount > 1);
                   1144:     $r->print("</h1>\n");
                   1145:     $r->rflush();
1.31      matthew  1146:     #
1.36      matthew  1147:     # Initialize progress window
                   1148:     %prog_state=&Apache::lonhtmlcommon::Create_PrgWin
                   1149:         ($r,'Excel File Compilation Status',
                   1150:          'Excel File Compilation Progress', $studentcount);
                   1151:     #
1.62      matthew  1152:     &Apache::lonhtmlcommon::Update_PrgWin($r,\%prog_state,
                   1153:                                           'Processing first student');
1.31      matthew  1154:     return;
                   1155: }
                   1156: 
                   1157: sub excel_outputstudent {
                   1158:     my ($r,$student) = @_;
1.54      matthew  1159:     return if ($request_aborted);
1.32      matthew  1160:     return if (! defined($excel_sheet));
                   1161:     $cols_output=0;
                   1162:     #
                   1163:     # Write out student data
                   1164:     my @to_show = &get_student_fields_to_show();
                   1165:     foreach my $field (@to_show) {
                   1166:         $excel_sheet->write($rows_output,$cols_output++,$student->{$field});
                   1167:     }
                   1168:     #
                   1169:     # Get student assessment data
                   1170:     my %StudentsData;
                   1171:     my @tmp = &Apache::loncoursedata::get_current_state($student->{'username'},
                   1172:                                                         $student->{'domain'},
                   1173:                                                         undef,
                   1174:                                                    $ENV{'request.course.id'});
                   1175:     if ((scalar @tmp > 0) && ($tmp[0] !~ /^error:/)) {
                   1176:         %StudentsData = @tmp;
                   1177:     }
                   1178:     #
                   1179:     # Write out sequence scores and totals data
1.76      matthew  1180:     my %total_cell_translation;
1.40      matthew  1181:     foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
1.76      matthew  1182:         # Keep track of cells to translate in total cell
                   1183:         $total_cell_translation{$seq->{'Excel:scorecell'}} = 
                   1184:             &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
                   1185:                         ($rows_output,$seq->{'Excel:scorecol'});
                   1186:         #
1.54      matthew  1187:         my ($performance,$performance_length,$score,$seq_max,$rawdata);
                   1188:         if ($base eq 'tries') {
                   1189:             ($performance,$performance_length,$score,$seq_max,$rawdata) =
                   1190:                 &StudentTriesOnSequence($student,\%StudentsData,
                   1191:                                         $seq,'no');
                   1192:         } else {
                   1193:             ($performance,$performance_length,$score,$seq_max,$rawdata) =
                   1194:                 &StudentPerformanceOnSequence($student,\%StudentsData,
                   1195:                                               $seq,'no');
                   1196:         }
                   1197:         if ($data eq 'tries' || $data eq 'scores') {
                   1198:             foreach my $value (@$rawdata) {
                   1199:                 $excel_sheet->write($rows_output,$cols_output++,$value);
                   1200:             }
1.76      matthew  1201:             # Write a formula for the sum of this sequence
                   1202:             my %replaceCells;
                   1203:             $replaceCells{$seq->{'Excel:startcell'}} = 
                   1204:                 &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
                   1205:                             ($rows_output,$seq->{'Excel:startcol'});
                   1206:             $replaceCells{$seq->{'Excel:endcell'}} = 
                   1207:                 &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
                   1208:                             ($rows_output,$seq->{'Excel:endcol'});
                   1209:             # The undef is for the format
                   1210:             $excel_sheet->repeat_formula($rows_output,$cols_output++,
                   1211:                                          $seq->{'Excel:sum'},undef,
                   1212:                                          %replaceCells);
                   1213:             #
1.54      matthew  1214:             $excel_sheet->write($rows_output,$cols_output++,$seq_max);
                   1215:         } elsif ($data eq 'sum and total' || $data eq 'sum only' || 
                   1216:             $data eq 'parts correct' || $data eq 'parts correct total') {
1.32      matthew  1217:             $excel_sheet->write($rows_output,$cols_output++,$score);
                   1218:         }
1.54      matthew  1219:         if ($data eq 'sum and total' || $data eq 'parts correct total') {
1.32      matthew  1220:             $excel_sheet->write($rows_output,$cols_output++,$seq_max);
                   1221:         }
                   1222:     }
1.76      matthew  1223:     #
                   1224:     $excel_sheet->repeat_formula($rows_output,$cols_output++,
                   1225:                                  $total_formula,undef,
                   1226:                                  %total_cell_translation);
                   1227: 
1.32      matthew  1228:     #
                   1229:     # Bookkeeping
                   1230:     $rows_output++; 
                   1231:     $cols_output=0;
                   1232:     #
1.36      matthew  1233:     # Update the progress window
                   1234:     &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,'last student');
1.32      matthew  1235:     return;
1.31      matthew  1236: }
                   1237: 
                   1238: sub excel_finish {
                   1239:     my ($r) = @_;
1.54      matthew  1240:     return if ($request_aborted);
1.32      matthew  1241:     return if (! defined($excel_sheet));
                   1242:     #
                   1243:     # Write the excel file
                   1244:     $excel_workbook->close();
                   1245:     my $c = $r->connection();
                   1246:     #
                   1247:     return if($c->aborted());
                   1248:     #
1.36      matthew  1249:     # Close the progress window
                   1250:     &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
                   1251:     #
1.32      matthew  1252:     # Tell the user where to get their excel file
1.36      matthew  1253:     $r->print('<br />'.
1.32      matthew  1254:               '<a href="'.$filename.'">Your Excel spreadsheet.</a>'."\n");
                   1255:     $r->rflush();
                   1256:     return;
1.31      matthew  1257: }
                   1258: 
                   1259: }
1.30      matthew  1260: #######################################################
                   1261: #######################################################
                   1262: 
                   1263: =pod
                   1264: 
1.31      matthew  1265: =head2 CSV output routines
                   1266: 
                   1267: =item &csv_initialize($r)
                   1268: 
                   1269: =item &csv_outputstudent($r,$student)
                   1270: 
                   1271: =item &csv_finish($r)
1.30      matthew  1272: 
                   1273: =cut
                   1274: 
                   1275: #######################################################
                   1276: #######################################################
1.31      matthew  1277: {
                   1278: 
1.37      matthew  1279: my $outputfile;
                   1280: my $filename;
1.54      matthew  1281: my $request_aborted;
1.37      matthew  1282: my %prog_state; # progress window state
                   1283: 
1.31      matthew  1284: sub csv_initialize{
                   1285:     my ($r) = @_;
1.37      matthew  1286:     # 
                   1287:     # Clean up
1.66      matthew  1288:     undef($outputfile);
                   1289:     undef($filename);
                   1290:     undef($request_aborted);
1.37      matthew  1291:     undef(%prog_state);
                   1292:     #
1.54      matthew  1293:     # Deal with unimplemented requests
                   1294:     $request_aborted = undef;
                   1295:     if ($data =~ /final table/) {
                   1296:         $r->print(<<END);
                   1297: <h2>Unable to Complete Request</h2>
                   1298: <p>
                   1299: The <b>Summary Table (Scores)</b> option is not available for non-HTML output.
                   1300: </p>
                   1301: END
                   1302:        $request_aborted = 1;
                   1303:     }
                   1304:     return if ($request_aborted);
                   1305: 
                   1306:     #
1.37      matthew  1307:     # Open a file
                   1308:     $filename = '/prtspool/'.
                   1309:         $ENV{'user.name'}.'_'.$ENV{'user.domain'}.'_'.
                   1310:             time.'_'.rand(1000000000).'.csv';
                   1311:     unless ($outputfile = Apache::File->new('>/home/httpd'.$filename)) {
                   1312:         $r->log_error("Couldn't open $filename for output $!");
                   1313:         $r->print("Problems occured in writing the csv file.  ".
                   1314:                   "This error has been logged.  ".
                   1315:                   "Please alert your LON-CAPA administrator.");
                   1316:         $outputfile = undef;
                   1317:     }
1.38      matthew  1318:     #
                   1319:     # Datestamp
                   1320:     my $description = $ENV{'course.'.$ENV{'request.course.id'}.'.description'};
                   1321:     print $outputfile '"'.&Apache::loncommon::csv_translate($description).'",'.
                   1322:         '"'.&Apache::loncommon::csv_translate(scalar(localtime(time))).'"'.
                   1323:             "\n";
1.37      matthew  1324:     #
                   1325:     # Print out the headings
                   1326:     my $Str = '';
                   1327:     my $Str2 = undef;
                   1328:     foreach my $field (&get_student_fields_to_show()) {
1.54      matthew  1329:         if ($data eq 'sum only') {
1.37      matthew  1330:             $Str .= '"'.&Apache::loncommon::csv_translate($field).'",';
1.54      matthew  1331:         } elsif ($data eq 'sum and total' || $data eq 'parts correct total') {
1.37      matthew  1332:             $Str .= '"",'; # first row empty on the student fields
                   1333:             $Str2 .= '"'.&Apache::loncommon::csv_translate($field).'",';
1.54      matthew  1334:         } elsif ($data eq 'scores' || $data eq 'tries' || 
                   1335:                  $data eq 'parts correct') {
1.53      matthew  1336:             $Str  .= '"",';
                   1337:             $Str2 .= '"'.&Apache::loncommon::csv_translate($field).'",';
1.37      matthew  1338:         }
                   1339:     }
1.40      matthew  1340:     foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
1.54      matthew  1341:         if ($data eq 'sum only' || $data eq 'parts correct') {
1.37      matthew  1342:             $Str .= '"'.&Apache::loncommon::csv_translate($seq->{'title'}).
                   1343:                 '",';
1.54      matthew  1344:         } elsif ($data eq 'sum and total' || $data eq 'parts correct total') {
1.37      matthew  1345:             $Str  .= '"'.&Apache::loncommon::csv_translate($seq->{'title'}).
                   1346:                 '","",';
                   1347:             $Str2 .= '"score","total possible",';
1.54      matthew  1348:         } elsif ($data eq 'scores' || $data eq 'tries') {
1.37      matthew  1349:             $Str  .= '"'.&Apache::loncommon::csv_translate($seq->{'title'}).
                   1350:                 '",';
1.53      matthew  1351:             $Str .= '"",'x($seq->{'num_assess_parts'}-1+2);
                   1352:             foreach my $res (@{$seq->{'contents'}}) {
1.54      matthew  1353:                 next if ($res->{'type'} ne 'assessment');
1.53      matthew  1354:                 foreach my $part (@{$res->{'parts'}}) {
                   1355:                     $Str2 .= '"'.&Apache::loncommon::csv_translate($res->{'title'}.', Part '.$part).'",';
                   1356:                 }
                   1357:             }
                   1358:             $Str2 .= '"score","total possible",';
1.37      matthew  1359:         }
                   1360:     }
                   1361:     chop($Str);
                   1362:     $Str .= "\n";
                   1363:     print $outputfile $Str;
                   1364:     if (defined($Str2)) {
                   1365:         chop($Str2);
                   1366:         $Str2 .= "\n";
                   1367:         print $outputfile $Str2;
                   1368:     }
                   1369:     #
                   1370:     # Initialize progress window
                   1371:     my $studentcount = scalar(@Apache::lonstatistics::Students);
                   1372:     %prog_state=&Apache::lonhtmlcommon::Create_PrgWin
                   1373:         ($r,'CSV File Compilation Status',
                   1374:          'CSV File Compilation Progress', $studentcount);
1.31      matthew  1375:     return;
                   1376: }
                   1377: 
                   1378: sub csv_outputstudent {
                   1379:     my ($r,$student) = @_;
1.54      matthew  1380:     return if ($request_aborted);
1.37      matthew  1381:     return if (! defined($outputfile));
                   1382:     my $Str = '';
                   1383:     #
                   1384:     # Output student fields
                   1385:     my @to_show = &get_student_fields_to_show();
                   1386:     foreach my $field (@to_show) {
                   1387:         $Str .= '"'.&Apache::loncommon::csv_translate($student->{$field}).'",';
                   1388:     }
                   1389:     #
                   1390:     # Get student assessment data
                   1391:     my %StudentsData;
                   1392:     my @tmp = &Apache::loncoursedata::get_current_state($student->{'username'},
                   1393:                                                         $student->{'domain'},
                   1394:                                                         undef,
                   1395:                                                    $ENV{'request.course.id'});
                   1396:     if ((scalar @tmp > 0) && ($tmp[0] !~ /^error:/)) {
                   1397:         %StudentsData = @tmp;
                   1398:     }
                   1399:     #
                   1400:     # Output performance data
1.40      matthew  1401:     foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
1.54      matthew  1402:         my ($performance,$performance_length,$score,$seq_max,$rawdata);
                   1403:         if ($base eq 'tries') {
                   1404:             ($performance,$performance_length,$score,$seq_max,$rawdata) =
                   1405:                 &StudentTriesOnSequence($student,\%StudentsData,
                   1406:                                         $seq,'no');
                   1407:         } else {
                   1408:             ($performance,$performance_length,$score,$seq_max,$rawdata) =
                   1409:                 &StudentPerformanceOnSequence($student,\%StudentsData,
                   1410:                                               $seq,'no');
                   1411:         }
                   1412:         if ($data eq 'sum only' || $data eq 'parts correct') {
1.37      matthew  1413:             $Str .= '"'.$score.'",';
1.54      matthew  1414:         } elsif ($data eq 'sum and total' || $data eq 'parts correct total') {
1.37      matthew  1415:             $Str  .= '"'.$score.'","'.$seq_max.'",';
1.54      matthew  1416:         } elsif ($data eq 'scores' || $data eq 'tries') {
                   1417:             $Str .= '"'.join('","',(@$rawdata,$score,$seq_max)).'",';
1.37      matthew  1418:         }
                   1419:     }
                   1420:     chop($Str);
                   1421:     $Str .= "\n";
                   1422:     print $outputfile $Str;
                   1423:     #
                   1424:     # Update the progress window
                   1425:     &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,'last student');
                   1426:     return;
1.31      matthew  1427: }
                   1428: 
                   1429: sub csv_finish {
                   1430:     my ($r) = @_;
1.54      matthew  1431:     return if ($request_aborted);
1.37      matthew  1432:     return if (! defined($outputfile));
                   1433:     close($outputfile);
                   1434:     #
                   1435:     my $c = $r->connection();
                   1436:     return if ($c->aborted());
                   1437:     #
                   1438:     # Close the progress window
                   1439:     &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
                   1440:     #
                   1441:     # Tell the user where to get their csv file
                   1442:     $r->print('<br />'.
                   1443:               '<a href="'.$filename.'">Your csv file.</a>'."\n");
                   1444:     $r->rflush();
                   1445:     return;
                   1446:     
1.31      matthew  1447: }
1.2       stredwic 1448: 
                   1449: }
                   1450: 
1.28      matthew  1451: #######################################################
                   1452: #######################################################
                   1453: 
1.2       stredwic 1454: =pod
                   1455: 
1.54      matthew  1456: =item &StudentTriesOnSequence()
1.2       stredwic 1457: 
1.30      matthew  1458: Inputs:
1.2       stredwic 1459: 
                   1460: =over 4
                   1461: 
1.30      matthew  1462: =item $student
1.28      matthew  1463: 
1.30      matthew  1464: =item $studentdata Hash ref to all student data
1.2       stredwic 1465: 
1.30      matthew  1466: =item $seq Hash ref, the sequence we are working on
1.2       stredwic 1467: 
1.30      matthew  1468: =item $links if defined we will output links to each resource.
1.2       stredwic 1469: 
1.28      matthew  1470: =back
1.2       stredwic 1471: 
                   1472: =cut
1.1       stredwic 1473: 
1.28      matthew  1474: #######################################################
                   1475: #######################################################
1.54      matthew  1476: sub StudentTriesOnSequence {
1.32      matthew  1477:     my ($student,$studentdata,$seq,$links) = @_;
1.31      matthew  1478:     $links = 'no' if (! defined($links));
1.1       stredwic 1479:     my $Str = '';
1.30      matthew  1480:     my ($sum,$max) = (0,0);
1.51      matthew  1481:     my $performance_length = 0;
1.54      matthew  1482:     my @TriesData = ();
                   1483:     my $tries;
1.30      matthew  1484:     foreach my $resource (@{$seq->{'contents'}}) {
                   1485:         next if ($resource->{'type'} ne 'assessment');
                   1486:         my $resource_data = $studentdata->{$resource->{'symb'}};
                   1487:         my $value = '';
                   1488:         foreach my $partnum (@{$resource->{'parts'}}) {
1.54      matthew  1489:             $tries = undef;
1.30      matthew  1490:             $max++;
1.51      matthew  1491:             $performance_length++;
1.30      matthew  1492:             my $symbol = ' '; # default to space
                   1493:             #
1.78      matthew  1494:             my $awarded = 0;
                   1495:             if (exists($resource_data->{'resource.'.$partnum.'.awarded'})) {
                   1496:                 $awarded = $resource_data->{'resource.'.$partnum.'.awarded'};
                   1497:                 $awarded = 0 if (! $awarded);
                   1498:             }
                   1499:             #
                   1500:             my $status = '';
1.30      matthew  1501:             if (exists($resource_data->{'resource.'.$partnum.'.solved'})) {
1.78      matthew  1502:                 $status = $resource_data->{'resource.'.$partnum.'.solved'};
                   1503:             }
                   1504:             #
                   1505:             my $tries = 0;
                   1506:             if(exists($resource_data->{'resource.'.$partnum.'.tries'})) {
                   1507:                 $tries = $resource_data->{'resource.'.$partnum.'.tries'};
                   1508:             }
                   1509:             #
                   1510:             if ($awarded > 0) {
                   1511:                 # The student has gotten the problem correct to some degree
                   1512:                 if ($status eq 'excused') {
                   1513:                     $symbol = 'x';
                   1514:                     $max--;
                   1515:                 } elsif ($status eq 'correct_by_override') {
1.30      matthew  1516:                     $symbol = '+';
                   1517:                     $sum++;
1.78      matthew  1518:                 } elsif ($tries > 0) {
1.54      matthew  1519:                     if ($tries > 9) {
1.30      matthew  1520:                         $symbol = '*';
1.78      matthew  1521:                     } else {
1.54      matthew  1522:                         $symbol = $tries;
1.30      matthew  1523:                     }
                   1524:                     $sum++;
                   1525:                 } else {
1.78      matthew  1526:                     $symbol = '+';
                   1527:                     $sum++;
1.2       stredwic 1528:                 }
1.30      matthew  1529:             } else {
1.78      matthew  1530:                 # The student has the problem incorrect or it is ungraded
                   1531:                 if ($status eq 'excused') {
                   1532:                     $symbol = 'x';
                   1533:                     $max--;
                   1534:                 } elsif ($status eq 'incorrect_by_override') {
                   1535:                     $symbol = '-';
                   1536:                 } elsif ($status eq 'ungraded_attempted') {
                   1537:                     $symbol = '#';
                   1538:                 } elsif ($status eq 'incorrect_attempted' ||
                   1539:                          $tries > 0)  {
1.30      matthew  1540:                     $symbol = '.';
                   1541:                 } else {
1.78      matthew  1542:                     # Problem is wrong and has not been attempted.
                   1543:                     $symbol=' ';
1.18      matthew  1544:                 }
1.2       stredwic 1545:             }
1.54      matthew  1546:             #
                   1547:             if (! defined($tries)) {
                   1548:                 $tries = $symbol;
                   1549:             }
                   1550:             push (@TriesData,$tries);
1.30      matthew  1551:             #
1.47      matthew  1552:             if ( ($links eq 'yes' && $symbol ne ' ') ||
                   1553:                  ($links eq 'all')) {
1.49      matthew  1554:                 if (length($symbol) > 1) {
                   1555:                     &Apache::lonnet::logthis('length of symbol "'.$symbol.'" > 1');
                   1556:                 }
1.30      matthew  1557:                 $symbol = '<a href="/adm/grades'.
                   1558:                     '?symb='.&Apache::lonnet::escape($resource->{'symb'}).
                   1559:                         '&student='.$student->{'username'}.
1.64      albertel 1560:                             '&userdom='.$student->{'domain'}.
1.30      matthew  1561:                                 '&command=submission">'.$symbol.'</a>';
                   1562:             }
                   1563:             $value .= $symbol;
1.2       stredwic 1564:         }
1.30      matthew  1565:         $Str .= $value;
1.17      minaeibi 1566:     }
1.51      matthew  1567:     if ($seq->{'randompick'}) {
                   1568:         $max = $seq->{'randompick'};
                   1569:     }
1.54      matthew  1570:     return ($Str,$performance_length,$sum,$max,\@TriesData);
                   1571: }
                   1572: 
                   1573: #######################################################
                   1574: #######################################################
                   1575: 
                   1576: =pod
                   1577: 
                   1578: =item &StudentPerformanceOnSequence()
                   1579: 
                   1580: Inputs:
                   1581: 
                   1582: =over 4
                   1583: 
                   1584: =item $student
                   1585: 
                   1586: =item $studentdata Hash ref to all student data
                   1587: 
                   1588: =item $seq Hash ref, the sequence we are working on
                   1589: 
                   1590: =item $links if defined we will output links to each resource.
                   1591: 
                   1592: =back
                   1593: 
                   1594: =cut
                   1595: 
                   1596: #######################################################
                   1597: #######################################################
                   1598: sub StudentPerformanceOnSequence {
                   1599:     my ($student,$studentdata,$seq,$links) = @_;
                   1600:     $links = 'no' if (! defined($links));
                   1601:     my $Str = ''; # final result string
                   1602:     my ($score,$max) = (0,0);
                   1603:     my $performance_length = 0;
                   1604:     my $symbol;
                   1605:     my @ScoreData = ();
                   1606:     my $partscore;
                   1607:     foreach my $resource (@{$seq->{'contents'}}) {
                   1608:         next if ($resource->{'type'} ne 'assessment');
                   1609:         my $resource_data = $studentdata->{$resource->{'symb'}};
                   1610:         foreach my $part (@{$resource->{'parts'}}) {
                   1611:             $partscore = undef;
                   1612:             my $weight = &Apache::lonnet::EXT('resource.'.$part.'.weight',
                   1613:                                               $resource->{'symb'},
                   1614:                                               $student->{'domain'},
                   1615:                                               $student->{'username'},
                   1616:                                               $student->{'section'});
                   1617:             if (!defined($weight) || ($weight eq '')) { 
                   1618:                 $weight=1;
                   1619:             }
                   1620:             #
                   1621:             $max += $weight; # see the 'excused' branch below...
                   1622:             $performance_length++; # one character per part
                   1623:             $symbol = ' '; # default to space
                   1624:             #
                   1625:             my $awarded = 0;
                   1626:             if (exists($resource_data->{'resource.'.$part.'.awarded'})) {
                   1627:                 $awarded = $resource_data->{'resource.'.$part.'.awarded'};
1.67      matthew  1628:                 $awarded = 0 if (! $awarded);
1.54      matthew  1629:             }
                   1630:             #
                   1631:             $partscore = $weight*$awarded;
                   1632:             $score += $partscore;
1.63      matthew  1633:             $symbol = $partscore; 
1.70      matthew  1634:             if (abs($symbol - sprintf("%.0f",$symbol)) < 0.001) {
                   1635:                 $symbol = sprintf("%.0f",$symbol);
                   1636:             }
1.54      matthew  1637:             if (length($symbol) > 1) {
                   1638:                 $symbol = '*';
                   1639:             }
                   1640:             if (exists($resource_data->{'resource.'.$part.'.solved'})) {
                   1641:                 my $status = $resource_data->{'resource.'.$part.'.solved'};
                   1642:                 if ($status eq 'excused') {
                   1643:                     $symbol = 'x';
                   1644:                     $max -= $weight; # Do not count 'excused' problems.
                   1645:                 }
                   1646:             } else {
                   1647:                 # Unsolved.  Did they try?
                   1648:                 if (exists($resource_data->{'resource.'.$part.'.tries'})){
                   1649:                     $symbol = '.';
                   1650:                 } else {
                   1651:                     $symbol = ' ';
                   1652:                 }
                   1653:             }
                   1654:             #
1.60      matthew  1655:             if (! defined($partscore)) {
                   1656:                 $partscore = $symbol;
                   1657:             }
                   1658:             push (@ScoreData,$partscore);
                   1659:             #
1.54      matthew  1660:             if ( ($links eq 'yes' && $symbol ne ' ') || ($links eq 'all')) {
                   1661:                 $symbol = '<a href="/adm/grades'.
                   1662:                     '?symb='.&Apache::lonnet::escape($resource->{'symb'}).
                   1663:                     '&student='.$student->{'username'}.
1.64      albertel 1664:                     '&userdom='.$student->{'domain'}.
1.54      matthew  1665:                     '&command=submission">'.$symbol.'</a>';
                   1666:             }
1.60      matthew  1667:             $Str .= $symbol;
1.54      matthew  1668:         }
                   1669:     }
                   1670:     return ($Str,$performance_length,$score,$max,\@ScoreData);
1.1       stredwic 1671: }
1.23      minaeibi 1672: 
1.28      matthew  1673: #######################################################
                   1674: #######################################################
1.23      minaeibi 1675: 
1.2       stredwic 1676: =pod
                   1677: 
                   1678: =item &CreateLegend()
                   1679: 
                   1680: This function returns a formatted string containing the legend for the
                   1681: chart.  The legend describes the symbols used to represent grades for
                   1682: problems.
                   1683: 
                   1684: =cut
                   1685: 
1.28      matthew  1686: #######################################################
                   1687: #######################################################
1.2       stredwic 1688: sub CreateLegend {
                   1689:     my $Str = "<p><pre>".
1.13      minaeibi 1690:               "   1  correct by student in 1 try\n".
                   1691:               "   7  correct by student in 7 tries\n".
1.12      minaeibi 1692:               "   *  correct by student in more than 9 tries\n".
1.20      minaeibi 1693: 	      "   +  correct by hand grading or override\n".
1.12      minaeibi 1694:               "   -  incorrect by override\n".
                   1695: 	      "   .  incorrect attempted\n".
                   1696: 	      "   #  ungraded attempted\n".
1.13      minaeibi 1697:               "      not attempted (blank field)\n".
1.12      minaeibi 1698: 	      "   x  excused".
1.17      minaeibi 1699:               "</pre><p>";
1.2       stredwic 1700:     return $Str;
                   1701: }
                   1702: 
1.28      matthew  1703: #######################################################
                   1704: #######################################################
                   1705: 
1.30      matthew  1706: =pod 
1.2       stredwic 1707: 
                   1708: =back
                   1709: 
                   1710: =cut
                   1711: 
1.28      matthew  1712: #######################################################
                   1713: #######################################################
1.2       stredwic 1714: 
1.28      matthew  1715: 1;
1.2       stredwic 1716: 
1.1       stredwic 1717: __END__

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