Annotation of loncom/interface/statistics/lonstudentassessment.pm, revision 1.169.2.7
1.1 stredwic 1: # The LearningOnline Network with CAPA
2: #
1.169.2.7! raeburn 3: # $Id: lonstudentassessment.pm,v 1.169.2.6 2014/04/05 13:03:06 raeburn Exp $
1.1 stredwic 4: #
5: # Copyright Michigan State University Board of Trustees
6: #
7: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
8: # LON-CAPA is free software; you can redistribute it and/or modify
9: # it under the terms of the GNU General Public License as published by
10: # the Free Software Foundation; either version 2 of the License, or
11: # (at your option) any later version.
12: #
13: # LON-CAPA is distributed in the hope that it will be useful,
14: # but WITHOUT ANY WARRANTY; without even the implied warranty of
15: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16: # GNU General Public License for more details.
17: #
18: # You should have received a copy of the GNU General Public License
19: # along with LON-CAPA; if not, write to the Free Software
20: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21: #
22: # /home/httpd/html/adm/gpl.txt
23: #
24: # http://www.lon-capa.org/
25: #
26: # (Navigate problems for statistical reports
1.28 matthew 27: #
28: #######################################################
29: #######################################################
30:
31: =pod
32:
33: =head1 NAME
34:
35: lonstudentassessment
36:
37: =head1 SYNOPSIS
38:
39: Presents assessment data about a student or a group of students.
40:
41: =head1 Subroutines
42:
43: =over 4
44:
45: =cut
46:
47: #######################################################
48: #######################################################
1.1 stredwic 49:
1.21 minaeibi 50: package Apache::lonstudentassessment;
1.1 stredwic 51:
52: use strict;
1.136 albertel 53: use Apache::lonstatistics();
54: use Apache::lonhtmlcommon();
1.77 matthew 55: use Apache::loncommon();
1.1 stredwic 56: use Apache::loncoursedata;
1.28 matthew 57: use Apache::lonnet; # for logging porpoises
1.75 matthew 58: use Apache::lonlocal;
1.136 albertel 59: use Apache::grades();
60: use Apache::lonmsgdisplay();
1.112 matthew 61: use Time::HiRes;
1.31 matthew 62: use Spreadsheet::WriteExcel;
1.76 matthew 63: use Spreadsheet::WriteExcel::Utility();
1.140 www 64: use lib '/home/httpd/lib/perl/';
65: use LONCAPA;
66:
1.31 matthew 67:
68: #######################################################
69: #######################################################
70: =pod
71:
72: =item Package Variables
73:
74: =over 4
75:
76: =item $Statistics Hash ref to store student data. Indexed by symb,
77: contains hashes with keys 'score' and 'max'.
78:
79: =cut
80:
81: #######################################################
82: #######################################################
1.1 stredwic 83:
1.30 matthew 84: my $Statistics;
85:
1.28 matthew 86: #######################################################
87: #######################################################
88:
89: =pod
90:
1.31 matthew 91: =item $show_links 'yes' or 'no' for linking to student performance data
92:
93: =item $output_mode 'html', 'excel', or 'csv' for output mode
94:
1.32 matthew 95: =item $show 'all', 'totals', or 'scores' determines how much data is output
1.31 matthew 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;
1.87 matthew 106: my $chosen_output;
1.49 matthew 107: my $single_student_mode;
1.28 matthew 108:
1.31 matthew 109: #######################################################
110: #######################################################
111: # End of package variable declarations
1.28 matthew 112:
1.31 matthew 113: =pod
1.28 matthew 114:
1.31 matthew 115: =back
1.28 matthew 116:
1.31 matthew 117: =cut
1.28 matthew 118:
1.31 matthew 119: #######################################################
120: #######################################################
1.28 matthew 121:
1.31 matthew 122: =pod
1.28 matthew 123:
1.31 matthew 124: =item &BuildStudentAssessmentPage()
1.28 matthew 125:
1.31 matthew 126: Inputs:
1.4 stredwic 127:
1.31 matthew 128: =over 4
1.28 matthew 129:
130: =item $r Apache Request
131:
132: =item $c Apache Connection
133:
134: =back
135:
136: =cut
137:
138: #######################################################
139: #######################################################
1.1 stredwic 140: sub BuildStudentAssessmentPage {
1.30 matthew 141: my ($r,$c)=@_;
1.74 matthew 142: #
1.30 matthew 143: undef($Statistics);
1.66 matthew 144: undef($show_links);
145: undef($output_mode);
1.87 matthew 146: undef($chosen_output);
1.66 matthew 147: undef($single_student_mode);
1.74 matthew 148: #
149: my %Saveable_Parameters = ('Status' => 'scalar',
150: 'chartoutputmode' => 'scalar',
151: 'chartoutputdata' => 'scalar',
152: 'Section' => 'array',
1.139 raeburn 153: 'Groups' => 'array',
1.74 matthew 154: 'StudentData' => 'array',
155: 'Maps' => 'array');
156: &Apache::loncommon::store_course_settings('chart',\%Saveable_Parameters);
157: &Apache::loncommon::restore_course_settings('chart',\%Saveable_Parameters);
158: #
159: &Apache::lonstatistics::PrepareClasslist();
160: #
1.65 matthew 161: $single_student_mode = 0;
1.121 albertel 162: $single_student_mode = 1 if ($env{'form.SelectedStudent'});
1.100 matthew 163: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
164: ['selectstudent']);
1.121 albertel 165: if ($env{'form.selectstudent'}) {
1.59 matthew 166: &Apache::lonstatistics::DisplayClasslist($r);
167: return;
168: }
1.163 www 169: $r->print(&Apache::lonhtmlcommon::breadcrumbs('Chart','Chart_Description:Chart_Sections:Chart_Student_Data:Chart_Enrollment_Status:Chart_Sequences:Chart_Output_Formats:Chart_Output_Data'));
170:
1.30 matthew 171: #
1.31 matthew 172: # Print out the HTML headers for the interface
173: # This also parses the output mode selector
1.54 matthew 174: # This step must *always* be done.
1.30 matthew 175: $r->print(&CreateInterface());
1.31 matthew 176: $r->print('<input type="hidden" name="notfirstrun" value="true" />');
1.49 matthew 177: $r->print('<input type="hidden" name="sort" value="'.
1.121 albertel 178: $env{'form.sort'}.'" />');
1.7 stredwic 179: $r->rflush();
1.58 matthew 180: #
1.121 albertel 181: if (! exists($env{'form.notfirstrun'}) && ! $single_student_mode) {
1.31 matthew 182: return;
183: }
1.119 matthew 184: $r->print('<h4>'.
185: &Apache::lonstatistics::section_and_enrollment_description().
186: '</h4>');
1.31 matthew 187: #
188: my $initialize = \&html_initialize;
189: my $output_student = \&html_outputstudent;
190: my $finish = \&html_finish;
191: #
192: if ($output_mode eq 'excel') {
193: $initialize = \&excel_initialize;
194: $output_student = \&excel_outputstudent;
195: $finish = \&excel_finish;
196: } elsif ($output_mode eq 'csv') {
197: $initialize = \&csv_initialize;
198: $output_student = \&csv_outputstudent;
199: $finish = \&csv_finish;
200: }
1.30 matthew 201: #
202: if($c->aborted()) { return ; }
1.31 matthew 203: #
1.49 matthew 204: # Determine which students we want to look at
205: my @Students;
206: if ($single_student_mode) {
207: @Students = (&Apache::lonstatistics::current_student());
208: $r->print(&next_and_previous_buttons());
209: $r->rflush();
210: } else {
211: @Students = @Apache::lonstatistics::Students;
212: }
1.56 matthew 213: #
214: # Perform generic initialization tasks
215: # Since we use lonnet::EXT to retrieve problem weights,
216: # to ensure current data we must clear the caches out.
217: # This makes sure that parameter changes at the student level
218: # are immediately reflected in the chart.
219: &Apache::lonnet::clear_EXT_cache_status();
1.69 matthew 220: #
221: # Clean out loncoursedata's package data, just to be safe.
222: &Apache::loncoursedata::clear_internal_caches();
1.49 matthew 223: #
1.31 matthew 224: # Call the initialize routine selected above
225: $initialize->($r);
1.49 matthew 226: foreach my $student (@Students) {
1.31 matthew 227: if($c->aborted()) {
228: $finish->($r);
229: return ;
1.1 stredwic 230: }
1.31 matthew 231: # Call the output_student routine selected above
232: $output_student->($r,$student);
233: }
234: # Call the "finish" routine selected above
235: $finish->($r);
236: #
237: return;
238: }
239:
240: #######################################################
241: #######################################################
1.49 matthew 242: sub next_and_previous_buttons {
243: my $Str = '';
244: $Str .= '<input type="hidden" name="SelectedStudent" value="'.
1.121 albertel 245: $env{'form.SelectedStudent'}.'" />';
1.49 matthew 246: #
247: # Build the previous student link
248: my $previous = &Apache::lonstatistics::previous_student();
249: my $previousbutton = '';
250: if (defined($previous)) {
251: my $sname = $previous->{'username'}.':'.$previous->{'domain'};
252: $previousbutton .= '<input type="button" value="'.
1.155 bisitz 253: &mt('Previous Student ([_1])',
254: $previous->{'username'}.':'.$previous->{'domain'}).
1.49 matthew 255: '" onclick="document.Statistics.SelectedStudent.value='.
256: "'".$sname."'".';'.
257: 'document.Statistics.submit();" />';
258: } else {
259: $previousbutton .= '<input type="button" value="'.
1.155 bisitz 260: &mt('Previous Student').'" disabled="disabled" />';
1.49 matthew 261: }
262: #
263: # Build the next student link
264: my $next = &Apache::lonstatistics::next_student();
265: my $nextbutton = '';
266: if (defined($next)) {
267: my $sname = $next->{'username'}.':'.$next->{'domain'};
268: $nextbutton .= '<input type="button" value="'.
1.155 bisitz 269: &mt('Next Student ([_1])',
270: $next->{'username'}.':'.$next->{'domain'}).
1.49 matthew 271: '" onclick="document.Statistics.SelectedStudent.value='.
272: "'".$sname."'".';'.
273: 'document.Statistics.submit();" />';
274: } else {
275: $nextbutton .= '<input type="button" value="'.
1.155 bisitz 276: &mt('Next Student').'" disabled="disabled" />';
1.49 matthew 277: }
278: #
279: # Build the 'all students' button
280: my $all = '';
1.155 bisitz 281: $all .= '<input type="button" value="'.&mt('All Students').'" '.
1.169.2.4 raeburn 282: ' onclick="document.Statistics.SelectedStudent.value='.
1.49 matthew 283: "''".';'.'document.Statistics.submit();" />';
284: $Str .= $previousbutton.(' 'x5).$all.(' 'x5).$nextbutton;
285: return $Str;
286: }
287:
288: #######################################################
289: #######################################################
1.30 matthew 290:
1.31 matthew 291: sub get_student_fields_to_show {
292: my @to_show = @Apache::lonstatistics::SelectedStudentData;
293: foreach (@to_show) {
294: if ($_ eq 'all') {
295: @to_show = @Apache::lonstatistics::StudentDataOrder;
296: last;
297: }
298: }
299: return @to_show;
300: }
301:
1.28 matthew 302: #######################################################
303: #######################################################
304:
305: =pod
1.2 stredwic 306:
1.28 matthew 307: =item &CreateInterface()
1.21 minaeibi 308:
1.28 matthew 309: Called by &BuildStudentAssessmentPage to create the top part of the
310: page which displays the chart.
311:
1.30 matthew 312: Inputs: None
1.28 matthew 313:
314: Returns: A string containing the HTML for the headers and top table for
315: the chart page.
316:
317: =cut
318:
319: #######################################################
320: #######################################################
1.2 stredwic 321: sub CreateInterface {
1.4 stredwic 322: my $Str = '';
1.30 matthew 323: $Str .= '<table cellspacing="5">'."\n";
324: $Str .= '<tr>';
1.141 albertel 325: $Str .= '<td align="center"><b>'.&mt('Sections').'</b>'.
326: &Apache::loncommon::help_open_topic("Chart_Sections").
327: '</td>';
328: $Str .= '<td align="center"><b>'.&mt('Groups').'</b>'.
329: '</td>';
1.157 bisitz 330: $Str .= '<td align="center"><b>'.&mt('Student Data').'</b>'.
1.141 albertel 331: &Apache::loncommon::help_open_topic("Chart_Student_Data").
332: '</td>';
1.143 raeburn 333: $Str .= '<td align="center"><b>'.&mt('Access Status').'</b>'.
1.141 albertel 334: &Apache::loncommon::help_open_topic("Chart_Enrollment_Status").
335: '</td>';
336: $Str .= '<td align="center"><b>'.&mt('Sequences and Folders').'</b>'.
337: &Apache::loncommon::help_open_topic("Chart_Sequences").
338: '</td>';
1.75 matthew 339: $Str .= '<td align="center"><b>'.&mt('Output Format').'</b>'.
1.58 matthew 340: &Apache::loncommon::help_open_topic("Chart_Output_Formats").
341: '</td>';
1.75 matthew 342: $Str .= '<td align="center"><b>'.&mt('Output Data').'</b>'.
1.58 matthew 343: &Apache::loncommon::help_open_topic("Chart_Output_Data").
344: '</td>';
1.30 matthew 345: $Str .= '</tr>'."\n";
346: #
1.4 stredwic 347: $Str .= '<tr><td align="center">'."\n";
1.29 matthew 348: $Str .= &Apache::lonstatistics::SectionSelect('Section','multiple',5);
1.4 stredwic 349: $Str .= '</td><td align="center">';
1.139 raeburn 350: $Str .= &Apache::lonstatistics::GroupSelect('Group','multiple',5);
351: $Str .= '</td><td align="center">';
1.30 matthew 352: $Str .= &Apache::lonstatistics::StudentDataSelect('StudentData','multiple',
353: 5,undef);
1.46 matthew 354: $Str .= '</td><td>'."\n";
355: $Str .= &Apache::lonhtmlcommon::StatusOptions(undef,undef,5);
1.4 stredwic 356: $Str .= '</td><td>'."\n";
1.112 matthew 357: $Str .= &Apache::lonstatistics::map_select('Maps','multiple,all',5);
1.31 matthew 358: $Str .= '</td><td>'."\n";
359: $Str .= &CreateAndParseOutputSelector();
1.54 matthew 360: $Str .= '</td><td>'."\n";
361: $Str .= &CreateAndParseOutputDataSelector();
1.30 matthew 362: $Str .= '</td></tr>'."\n";
363: $Str .= '</table>'."\n";
1.75 matthew 364: $Str .= '<input type="submit" name="selectstudent" value="'.
365: &mt('Select One Student').'" />';
1.59 matthew 366: $Str .= ' 'x5;
1.75 matthew 367: $Str .= '<input type="submit" name="ClearCache" value="'.
368: &mt('Clear Caches').'" />';
1.156 bisitz 369: $Str .= '<p>'
370: .'<input type="submit" name="Generate Chart"'
371: .' value="'.&mt('Generate Chart').'" />'
372: .'</p>';
1.4 stredwic 373: return $Str;
1.1 stredwic 374: }
1.30 matthew 375:
376: #######################################################
377: #######################################################
378:
379: =pod
380:
1.31 matthew 381: =item &CreateAndParseOutputSelector()
1.30 matthew 382:
383: =cut
384:
385: #######################################################
386: #######################################################
1.32 matthew 387: my @OutputOptions =
388: ({ name => 'HTML, with links',
389: value => 'html, with links',
1.33 matthew 390: description => 'Output HTML with each symbol linked to the problem '.
1.35 matthew 391: 'which generated it.',
392: mode => 'html',
393: show_links => 'yes',
394: },
1.47 matthew 395: { name => 'HTML, with all links',
396: value => 'html, with all links',
397: description => 'Output HTML with each symbol linked to the problem '.
398: 'which generated it. '.
399: 'This includes links for unattempted problems.',
400: mode => 'html',
401: show_links => 'all',
402: },
1.32 matthew 403: { name => 'HTML, without links',
404: value => 'html, without links',
1.33 matthew 405: description => 'Output HTML. By not including links, the size of the'.
406: ' web page is greatly reduced. If your browser crashes on the '.
1.35 matthew 407: 'full display, try this.',
408: mode => 'html',
409: show_links => 'no',
410: },
1.54 matthew 411: { name => 'Excel',
412: value => 'excel',
413: description => 'Output an Excel file (compatable with Excel 95).',
1.35 matthew 414: mode => 'excel',
415: show_links => 'no',
1.54 matthew 416: },
417: { name => 'CSV',
418: value => 'csv',
1.96 www 419: description => 'Output a comma separated values file suitable for '.
1.57 matthew 420: 'import into a spreadsheet program. Using this method as opposed '.
421: 'to Excel output allows you to organize your data before importing'.
422: ' it into a spreadsheet program.',
1.35 matthew 423: mode => 'csv',
424: show_links => 'no',
425: },
1.32 matthew 426: );
427:
1.33 matthew 428: sub OutputDescriptions {
429: my $Str = '';
1.169.2.6 raeburn 430: $Str .= '<h2>'.&mt('Output Formats')."</h2>\n";
1.33 matthew 431: $Str .= "<dl>\n";
432: foreach my $outputmode (@OutputOptions) {
433: $Str .=" <dt>".$outputmode->{'name'}."</dt>\n";
434: $Str .=" <dd>".$outputmode->{'description'}."</dd>\n";
435: }
436: $Str .= "</dl>\n";
437: return $Str;
438: }
439:
1.31 matthew 440: sub CreateAndParseOutputSelector {
441: my $Str = '';
1.44 matthew 442: my $elementname = 'chartoutputmode';
1.73 matthew 443: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
444: [$elementname]);
1.31 matthew 445: #
446: # Format for output options is 'mode, restrictions';
1.122 albertel 447: my $selected = (&Apache::loncommon::get_env_multiple('form.'.$elementname))[0];
448: $selected = 'html, without links' if (!$selected);
449:
1.31 matthew 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'}.'"';
1.169.2.4 raeburn 465: $Str .= ' selected="selected"' if ($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',
1.87 matthew 480: scores => 1,
481: tries => 0,
482: every_problem => 0,
483: sequence_sum => 1,
484: sequence_max => 1,
485: grand_total => 1,
1.101 matthew 486: grand_maximum => 1,
1.89 matthew 487: summary_table => 1,
1.90 matthew 488: maximum_row => 1,
1.129 bowersj2 489: ignore_weight => 0,
1.57 matthew 490: shortdesc => 'Total Score and Maximum Possible for each '.
491: 'Sequence or Folder',
492: longdesc => 'The score of each student as well as the '.
493: ' maximum possible on each Sequence or Folder.',
494: },
1.71 matthew 495: { name => 'Scores Per Problem',
1.57 matthew 496: base => 'scores',
1.71 matthew 497: value => 'scores',
1.87 matthew 498: scores => 1,
499: tries => 0,
500: correct => 0,
501: every_problem => 1,
502: sequence_sum => 1,
503: sequence_max => 1,
504: grand_total => 1,
1.101 matthew 505: grand_maximum => 1,
1.89 matthew 506: summary_table => 1,
1.90 matthew 507: maximum_row => 1,
1.129 bowersj2 508: ignore_weight => 0,
1.71 matthew 509: shortdesc => 'Score on each Problem Part',
510: longdesc =>'The students score on each problem part, computed as'.
511: 'the part weight * part awarded',
1.57 matthew 512: },
513: { name =>'Tries',
514: base =>'tries',
515: value => 'tries',
1.87 matthew 516: scores => 0,
517: tries => 1,
518: correct => 0,
519: every_problem => 1,
520: sequence_sum => 0,
521: sequence_max => 0,
522: grand_total => 0,
1.101 matthew 523: grand_maximum => 0,
1.90 matthew 524: summary_table => 0,
525: maximum_row => 0,
1.129 bowersj2 526: ignore_weight => 0,
1.57 matthew 527: shortdesc => 'Number of Tries before success on each Problem Part',
528: longdesc =>'The number of tries before success on each problem part.',
1.109 matthew 529: non_html_notes => 'negative values indicate an incorrect problem',
1.57 matthew 530: },
531: { name =>'Parts Correct',
532: base =>'tries',
533: value => 'parts correct total',
1.87 matthew 534: scores => 0,
535: tries => 0,
536: correct => 1,
537: every_problem => 1,
538: sequence_sum => 1,
539: sequence_max => 1,
540: grand_total => 1,
1.101 matthew 541: grand_maximum => 1,
1.89 matthew 542: summary_table => 1,
1.90 matthew 543: maximum_row => 0,
1.129 bowersj2 544: ignore_weight => 1,
1.157 bisitz 545: shortdesc => 'Number of Problem Parts completed successfully',
1.57 matthew 546: longdesc => 'The Number of Problem Parts completed successfully and '.
547: 'the maximum possible for each student',
548: },
549: );
550:
551: sub HTMLifyOutputDataDescriptions {
552: my $Str = '';
1.160 raeburn 553: $Str .= '<h2>'.&mt('Output Data').'</h2>'."\n";
1.57 matthew 554: $Str .= "<dl>\n";
555: foreach my $option (@OutputDataOptions) {
556: $Str .= ' <dt>'.$option->{'name'}.'</dt>';
557: $Str .= '<dd>'.$option->{'longdesc'}.'</dd>'."\n";
558: }
559: $Str .= "</dl>\n";
560: return $Str;
561: }
1.54 matthew 562:
563: sub CreateAndParseOutputDataSelector {
564: my $Str = '';
565: my $elementname = 'chartoutputdata';
566: #
1.122 albertel 567: my $selected = (&Apache::loncommon::get_env_multiple('form.'.$elementname))[0];
568: $selected = 'scores' if (!$selected);
569:
1.54 matthew 570: #
1.87 matthew 571: $chosen_output = $OutputDataOptions[0];
1.54 matthew 572: foreach my $option (@OutputDataOptions) {
573: if ($option->{'value'} eq $selected) {
1.87 matthew 574: $chosen_output = $option;
1.54 matthew 575: }
576: }
577: #
578: # Build the form element
579: $Str = qq/<select size="5" name="$elementname">/;
580: foreach my $option (@OutputDataOptions) {
581: $Str .= "\n".' <option value="'.$option->{'value'}.'"';
1.169.2.4 raeburn 582: $Str .= ' selected="selected"' if ($option->{'value'} eq $chosen_output->{'value'});
1.75 matthew 583: $Str .= ">".&mt($option->{'name'})."<\/option>";
1.54 matthew 584: }
585: $Str .= "\n</select>";
586: return $Str;
587:
588: }
589:
1.28 matthew 590: #######################################################
591: #######################################################
1.115 matthew 592: sub count_parts {
593: my ($navmap,$sequence) = @_;
594: my @resources = &get_resources($navmap,$sequence);
595: my $count = 0;
596: foreach my $res (@resources) {
597: $count += scalar(@{$res->parts});
598: }
599: return $count;
600: }
601:
602: sub get_resources {
603: my ($navmap,$sequence) = @_;
604: my @resources = $navmap->retrieveResources($sequence,
605: sub { shift->is_problem(); },
606: 0,0,0);
607: return @resources;
608: }
609:
610: #######################################################
611: #######################################################
1.1 stredwic 612:
1.28 matthew 613: =pod
614:
1.31 matthew 615: =head2 HTML output routines
1.28 matthew 616:
1.31 matthew 617: =item &html_initialize($r)
1.28 matthew 618:
1.31 matthew 619: Create labels for the columns of student data to show.
1.28 matthew 620:
1.31 matthew 621: =item &html_outputstudent($r,$student)
1.28 matthew 622:
1.31 matthew 623: Return a line of the chart for a student.
1.28 matthew 624:
1.31 matthew 625: =item &html_finish($r)
1.28 matthew 626:
627: =cut
628:
629: #######################################################
630: #######################################################
1.31 matthew 631: {
632: my $padding;
633: my $count;
634:
1.39 matthew 635: my $nodata_count; # The number of students for which there is no data
636: my %prog_state; # progress state used by loncommon PrgWin routines
1.102 matthew 637: my $total_sum_width;
1.39 matthew 638:
1.112 matthew 639: my %width; # Holds sequence width information
640: my @sequences;
641: my $navmap; # Have to keep this around since weakref is a bit zealous
642:
1.125 albertel 643: sub html_cleanup {
644: undef(%prog_state);
645: undef(%width);
646: #
647: undef($navmap);
648: undef(@sequences);
649: }
650:
1.31 matthew 651: sub html_initialize {
652: my ($r) = @_;
1.30 matthew 653: #
654: $padding = ' 'x3;
1.35 matthew 655: $count = 0;
1.39 matthew 656: $nodata_count = 0;
1.125 albertel 657: &html_cleanup();
1.115 matthew 658: ($navmap,@sequences) =
659: &Apache::lonstatistics::selected_sequences_with_assessments();
660: if (! ref($navmap)) {
661: # Unable to get data, so bail out
1.156 bisitz 662: $r->print('<p class="LC_error">'
663: .&mt('Unable to retrieve course information.')
664: .'</p>');
1.115 matthew 665: }
1.134 bowersj2 666:
667: # If we're showing links, show a checkbox to open in new
668: # windows.
669: if ($show_links ne 'no') {
1.159 bisitz 670: my $labeltext = &mt('Show links in new window');
1.134 bowersj2 671: $r->print(<<NEW_WINDOW_CHECKBOX);
1.135 albertel 672: <script type="text/javascript">new_window = true;</script>
1.159 bisitz 673: <p><label>
1.152 bisitz 674: <input type="checkbox" checked="checked" onclick="new_window=this.checked" />
1.159 bisitz 675: $labeltext
1.135 albertel 676: </label></p>
1.134 bowersj2 677: NEW_WINDOW_CHECKBOX
678: }
679:
1.30 matthew 680: #
1.121 albertel 681: $r->print("<h3>".$env{'course.'.$env{'request.course.id'}.'.description'}.
1.156 bisitz 682: " ".&Apache::lonlocal::locallocaltime(time)."</h3>");
1.112 matthew 683: #
1.87 matthew 684: if ($chosen_output->{'base'} !~ /^final table/) {
1.146 bisitz 685: $r->print("<h3>".&mt($chosen_output->{'shortdesc'})."</h3>");
1.39 matthew 686: }
1.31 matthew 687: my $Str = "<pre>\n";
1.30 matthew 688: # First, the @StudentData fields need to be listed
1.31 matthew 689: my @to_show = &get_student_fields_to_show();
1.30 matthew 690: foreach my $field (@to_show) {
691: my $title=$Apache::lonstatistics::StudentData{$field}->{'title'};
692: my $base =$Apache::lonstatistics::StudentData{$field}->{'base_width'};
693: my $width=$Apache::lonstatistics::StudentData{$field}->{'width'};
694: $Str .= $title.' 'x($width-$base).$padding;
695: }
1.89 matthew 696: #
697: # Compute the column widths and output the sequence titles
1.102 matthew 698: my $total_count;
1.112 matthew 699: #
700: # Compute sequence widths
701: my $starttime = Time::HiRes::time;
702: foreach my $seq (@sequences) {
703: my $symb = $seq->symb;
704: my $title = $seq->compTitle;
705: $width{$symb}->{'width_sum'} = 0;
706: # Compute width of sum
1.89 matthew 707: if ($chosen_output->{'sequence_sum'}) {
1.99 matthew 708: if ($chosen_output->{'every_problem'}) {
709: # Use 1 digit for a space
1.112 matthew 710: $width{$symb}->{'width_sum'} += 1;
1.99 matthew 711: }
1.118 matthew 712: $total_count += &count_parts($navmap,$seq);
1.151 www 713: # Use 6 digits for the sum
714: $width{$symb}->{'width_sum'} += 6;
1.89 matthew 715: }
1.112 matthew 716: # Compute width of maximum
1.89 matthew 717: if ($chosen_output->{'sequence_max'}) {
1.112 matthew 718: if ($width{$symb}->{'width_sum'}>0) {
1.89 matthew 719: # One digit for the '/'
1.112 matthew 720: $width{$symb}->{'width_sum'} +=1;
1.89 matthew 721: }
1.151 www 722: # Use 6 digits for the total
723: $width{$symb}->{'width_sum'}+=6;
1.89 matthew 724: }
1.94 matthew 725: #
1.89 matthew 726: if ($chosen_output->{'every_problem'}) {
727: # one problem per digit
1.115 matthew 728: $width{$symb}->{'width_parts'}= &count_parts($navmap,$seq);
729: $width{$symb}->{'width_problem'} += $width{$symb}->{'width_parts'};
1.89 matthew 730: } else {
1.112 matthew 731: $width{$symb}->{'width_problem'} = 0;
1.89 matthew 732: }
1.112 matthew 733: $width{$symb}->{'width_total'} = $width{$symb}->{'width_problem'} +
734: $width{$symb}->{'width_sum'};
735: if ($width{$symb}->{'width_total'} < length(&HTML::Entities::decode($title))) {
736: $width{$symb}->{'width_total'} = length(&HTML::Entities::decode($title));
1.89 matthew 737: }
738: #
739: # Output the sequence titles
1.112 matthew 740: $Str .= $title.(' 'x($width{$symb}->{'width_total'}-
741: length($title)
742: )).$padding;
1.30 matthew 743: }
1.102 matthew 744: $total_sum_width = length($total_count)+1;
745: $Str .= " total</pre>\n";
1.31 matthew 746: $Str .= "<pre>";
1.132 bowersj2 747:
748: $r->print(<<JS);
1.142 albertel 749: <script type="text/javascript">
1.132 bowersj2 750: // get the left offset of a given widget as an absolute position
751: function getLeftOffset (element) {
752: return collect(element, "offsetLeft");
753: }
754:
755: // get the top offset of a given widget as an absolute position
756: function getTopOffset (element) {
757: return collect(element, "offsetTop");
758: }
759:
760: function collect(element, att) {
761: var val = 0;
762: while(element) {
763: val += element[att];
764: element = element.offsetParent;
765: }
766: return val;
767: }
768:
769: var currentDiv;
770: var currentElement;
771: function popup_score(element, score) {
772: popdown_score();
773: var left = getLeftOffset(element);
774: var top = getTopOffset(element);
775: var div = document.createElement("div");
1.142 albertel 776: div.className = "LC_chrt_popup";
1.132 bowersj2 777: div.appendChild(document.createTextNode(score));
778: div.style.position = "absolute";
779: div.style.top = (top - 25) + "px";
780: div.style.left = (left - 10) + "px";
781: currentDiv = div;
1.133 bowersj2 782: document.body.insertBefore(div, document.body.childNodes[0]);
1.142 albertel 783: element.className = "LC_chrt_popup_up";
1.132 bowersj2 784: currentElement = element;
785: }
786:
787: function popdown_score() {
788: if (currentDiv) {
789: document.body.removeChild(currentDiv);
790: }
791: if (currentElement) {
1.142 albertel 792: currentElement.className = 'LC_chrt_popup_exists';
1.132 bowersj2 793: }
794: currentDiv = undefined;
795: }
796: </script>
797: JS
798:
1.123 albertel 799: #
800: # Let the user know what we are doing
801: my $studentcount = scalar(@Apache::lonstatistics::Students);
802: if ($env{'form.SelectedStudent'}) {
803: $studentcount = '1';
804: }
805: #
806: # Initialize progress window
1.166 www 807: #
1.165 www 808: %prog_state=&Apache::lonhtmlcommon::Create_PrgWin($r,$studentcount);
1.123 albertel 809: &Apache::lonhtmlcommon::Update_PrgWin($r,\%prog_state,
810: 'Processing first student');
1.166 www 811: $r->print($Str);
812: $r->rflush();
813:
1.31 matthew 814: return;
1.30 matthew 815: }
816:
1.31 matthew 817: sub html_outputstudent {
818: my ($r,$student) = @_;
1.2 stredwic 819: my $Str = '';
1.112 matthew 820: return if (! defined($navmap));
1.35 matthew 821: #
1.87 matthew 822: if($count++ % 5 == 0 && $count > 0) {
1.158 bisitz 823: # $r->print("</pre><pre>");
824: $r->print('</pre>');
825: &Apache::lonhtmlcommon::Increment_PrgWin(
1.162 bisitz 826: $r,\%prog_state,'last five students',5);
1.158 bisitz 827: $r->rflush();
828: $r->print('<pre>');
1.35 matthew 829: }
1.30 matthew 830: # First, the @StudentData fields need to be listed
1.31 matthew 831: my @to_show = &get_student_fields_to_show();
1.30 matthew 832: foreach my $field (@to_show) {
833: my $title=$student->{$field};
1.103 matthew 834: # Deal with 'comments' - how I love special cases
835: if ($field eq 'comments') {
836: $title = '<a href="/adm/'.$student->{'domain'}.'/'.$student->{'username'}.'/'.'aboutme#coursecomment">'.&mt('Comments').'</a>';
837: }
1.168 raeburn 838: utf8::decode($title);
1.31 matthew 839: my $base = length($title);
1.30 matthew 840: my $width=$Apache::lonstatistics::StudentData{$field}->{'width'};
841: $Str .= $title.' 'x($width-$base).$padding;
842: }
843: # Get ALL the students data
844: my %StudentsData;
845: my @tmp = &Apache::loncoursedata::get_current_state
846: ($student->{'username'},$student->{'domain'},undef,
1.121 albertel 847: $env{'request.course.id'});
1.144 albertel 848: if ((scalar @tmp > 0) && ($tmp[0] !~ /^error:(.*)/)) {
1.30 matthew 849: %StudentsData = @tmp;
1.144 albertel 850: } else {
851: my $error = $1;
852: if (scalar(@tmp) < 1) {
1.149 bisitz 853: $Str .= '<span class="LC_warning">'
854: .&mt('No Course Data')
855: .'</span>'."\n";
1.144 albertel 856: } else {
1.149 bisitz 857: $Str .= '<span class="LC_error">'
858: .&mt('Error getting student data ([_1])',$error)
859: .'</span>'."\n";
1.144 albertel 860: }
1.39 matthew 861: $nodata_count++;
1.31 matthew 862: $r->print($Str);
863: $r->rflush();
864: return;
1.30 matthew 865: }
866: #
867: # By sequence build up the data
868: my $studentstats;
1.31 matthew 869: my $PerformanceStr = '';
1.112 matthew 870: foreach my $seq (@sequences) {
1.118 matthew 871: my $symb = $seq->symb;
1.164 raeburn 872: my $randompick = $seq->randompick();
1.54 matthew 873: my ($performance,$performance_length,$score,$seq_max,$rawdata);
1.87 matthew 874: if ($chosen_output->{'tries'}) {
1.54 matthew 875: ($performance,$performance_length,$score,$seq_max,$rawdata) =
1.112 matthew 876: &student_tries_on_sequence($student,\%StudentsData,
1.164 raeburn 877: $navmap,$seq,$show_links,$randompick);
1.54 matthew 878: } else {
879: ($performance,$performance_length,$score,$seq_max,$rawdata) =
1.112 matthew 880: &student_performance_on_sequence($student,\%StudentsData,
1.129 bowersj2 881: $navmap,$seq,$show_links,
1.164 raeburn 882: $chosen_output->{ignore_weight},
883: $randompick);
1.54 matthew 884: }
1.89 matthew 885: my $ratio='';
1.118 matthew 886: if ($chosen_output->{'every_problem'} &&
887: $chosen_output->{'sequence_sum'}) {
1.99 matthew 888: $ratio .= ' ';
889: }
1.97 matthew 890: if ($chosen_output->{'sequence_sum'} && $score ne ' ') {
1.151 www 891: my $score .= sprintf("%3.2f",$score);
892: $ratio .= (' 'x(6-length($score))).$score;
1.98 matthew 893: } elsif($chosen_output->{'sequence_sum'}) {
1.151 www 894: $ratio .= ' 'x6;
1.89 matthew 895: }
896: if ($chosen_output->{'sequence_max'}) {
897: if ($chosen_output->{'sequence_sum'}) {
898: $ratio .= '/';
899: }
1.151 www 900: my $sequence_total=sprintf("%3.2f",$seq_max);
901: $ratio .= $sequence_total.(' 'x(6-length($sequence_total)));
1.89 matthew 902: }
1.31 matthew 903: #
1.89 matthew 904: if (! $chosen_output->{'every_problem'}) {
905: $performance = '';
1.94 matthew 906: $performance_length=0;
1.30 matthew 907: }
1.118 matthew 908: $performance .= ' 'x($width{$symb}->{'width_total'} -
1.112 matthew 909: $performance_length -
1.118 matthew 910: $width{$symb}->{'width_sum'}).
1.89 matthew 911: $ratio;
1.31 matthew 912: #
913: $Str .= $performance.$padding;
914: #
1.118 matthew 915: $studentstats->{$symb}->{'score'}= $score;
916: $studentstats->{$symb}->{'max'} = $seq_max;
1.30 matthew 917: }
918: #
919: # Total it up and store the statistics info.
1.97 matthew 920: my ($score,$max);
1.30 matthew 921: while (my ($symb,$seq_stats) = each (%{$studentstats})) {
922: $Statistics->{$symb}->{'score'} += $seq_stats->{'score'};
1.54 matthew 923: if ($Statistics->{$symb}->{'max'} < $seq_stats->{'max'}) {
924: $Statistics->{$symb}->{'max'} = $seq_stats->{'max'};
925: }
1.97 matthew 926: if ($seq_stats->{'score'} ne ' ') {
927: $score += $seq_stats->{'score'};
928: $Statistics->{$symb}->{'num_students'}++;
929: }
1.30 matthew 930: $max += $seq_stats->{'max'};
931: }
1.97 matthew 932: if (! defined($score)) {
1.102 matthew 933: $score = ' ' x $total_sum_width;
1.105 matthew 934: } else {
1.151 www 935: $score = sprintf("%.2f",$score);
936: $score = (' 'x(6-length($score))).$score;
1.97 matthew 937: }
1.102 matthew 938: $Str .= ' '.' 'x($total_sum_width-length($score)).$score.' / '.$max;
1.30 matthew 939: $Str .= " \n";
1.39 matthew 940: #
1.31 matthew 941: $r->print($Str);
942: #
1.158 bisitz 943: # $r->rflush();
944: # &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,'last student');
1.31 matthew 945: return;
1.30 matthew 946: }
1.2 stredwic 947:
1.31 matthew 948: sub html_finish {
949: my ($r) = @_;
1.112 matthew 950: return if (! defined($navmap));
1.39 matthew 951: #
952: # Check for suppressed output and close the progress window if so
1.87 matthew 953: $r->print("</pre>\n");
1.90 matthew 954: if ($chosen_output->{'summary_table'}) {
955: if ($single_student_mode) {
956: $r->print(&SingleStudentTotal());
957: } else {
958: $r->print(&StudentAverageTotal());
959: }
1.49 matthew 960: }
1.31 matthew 961: $r->rflush();
1.123 albertel 962: &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
1.125 albertel 963: &html_cleanup();
1.31 matthew 964: return;
965: }
966:
1.39 matthew 967: sub StudentAverageTotal {
1.105 matthew 968: my $Str = '<h3>'.&mt('Summary Tables').'</h3>'.$/;
1.150 bisitz 969: $Str .= &Apache::loncommon::start_data_table();
970: $Str .= &Apache::loncommon::start_data_table_header_row().
1.105 matthew 971: '<th>'.&mt('Title').'</th>'.
972: '<th>'.&mt('Average').'</th>'.
973: '<th>'.&mt('Maximum').'</th>'.
1.150 bisitz 974: &Apache::loncommon::end_data_table_header_row().$/;
1.112 matthew 975: foreach my $seq (@sequences) {
976: my $symb = $seq->symb;
1.42 matthew 977: my $ave;
1.112 matthew 978: my $num_students = $Statistics->{$symb}->{'num_students'};
1.97 matthew 979: if ($num_students > 0) {
980: $ave = int(100*
1.112 matthew 981: ($Statistics->{$symb}->{'score'}/$num_students)
1.97 matthew 982: )/100;
1.42 matthew 983: } else {
984: $ave = 0;
985: }
1.112 matthew 986: my $max = $Statistics->{$symb}->{'max'};
1.82 matthew 987: $ave = sprintf("%.2f",$ave);
1.150 bisitz 988: $Str .= &Apache::loncommon::start_data_table_row().
989: '<td>'.$seq->compTitle.'</td>'.
1.82 matthew 990: '<td align="right">'.$ave.' </td>'.
1.150 bisitz 991: '<td align="right">'.$max.' '.'</td>'.
992: &Apache::loncommon::end_data_table_row()."\n";
1.39 matthew 993: }
1.150 bisitz 994: $Str .= &Apache::loncommon::end_data_table()."\n";
1.39 matthew 995: return $Str;
996: }
997:
1.49 matthew 998: sub SingleStudentTotal {
1.115 matthew 999: return if (! defined($navmap));
1.49 matthew 1000: my $student = &Apache::lonstatistics::current_student();
1.157 bisitz 1001: my $Str = '<h3>'.&mt('Summary table for [_1] ([_2])',
1.105 matthew 1002: $student->{'fullname'},
1.157 bisitz 1003: $student->{'username'}.':'.$student->{'domain'}).'</h3>';
1.105 matthew 1004: $Str .= $/;
1.150 bisitz 1005: $Str .= &Apache::loncommon::start_data_table()."\n";
1.49 matthew 1006: $Str .=
1.150 bisitz 1007: &Apache::loncommon::start_data_table_header_row().
1.105 matthew 1008: '<th>'.&mt('Sequence or Folder').'</th>';
1009: if ($chosen_output->{'base'} eq 'tries') {
1010: $Str .= '<th>'.&mt('Parts Correct').'</th>';
1011: } else {
1012: $Str .= '<th>'.&mt('Score').'</th>';
1013: }
1.150 bisitz 1014: $Str .= '<th>'.&mt('Maximum').'</th>'.
1015: &Apache::loncommon::end_data_table_header_row()."\n";
1.49 matthew 1016: my $total = 0;
1017: my $total_max = 0;
1.115 matthew 1018: foreach my $seq (@sequences) {
1.112 matthew 1019: my $value = $Statistics->{$seq->symb}->{'score'};
1020: my $max = $Statistics->{$seq->symb}->{'max'};
1.150 bisitz 1021: $Str .= &Apache::loncommon::start_data_table_row().
1022: '<td>'.&HTML::Entities::encode($seq->compTitle).'</td>'.
1.49 matthew 1023: '<td align="right">'.$value.'</td>'.
1.150 bisitz 1024: '<td align="right">'.$max.'</td>'.
1025: &Apache::loncommon::end_data_table_row()."\n";
1.49 matthew 1026: $total += $value;
1027: $total_max +=$max;
1028: }
1.150 bisitz 1029: $Str .= &Apache::loncommon::start_data_table_row().
1030: '<td><b>'.&mt('Total').'</b></td>'.
1.49 matthew 1031: '<td align="right">'.$total.'</td>'.
1.150 bisitz 1032: '<td align="right">'.$total_max.'</td>'.
1033: &Apache::loncommon::end_data_table_row()."\n";
1034: $Str .= &Apache::loncommon::end_data_table()."\n";
1.49 matthew 1035: return $Str;
1036: }
1037:
1.31 matthew 1038: }
1039:
1040: #######################################################
1041: #######################################################
1042:
1043: =pod
1044:
1045: =head2 EXCEL subroutines
1046:
1047: =item &excel_initialize($r)
1048:
1049: =item &excel_outputstudent($r,$student)
1050:
1051: =item &excel_finish($r)
1052:
1053: =cut
1054:
1055: #######################################################
1056: #######################################################
1057: {
1058:
1059: my $excel_sheet;
1.32 matthew 1060: my $excel_workbook;
1.117 matthew 1061: my $format;
1.32 matthew 1062:
1063: my $filename;
1064: my $rows_output;
1065: my $cols_output;
1066:
1.36 matthew 1067: my %prog_state; # progress window state
1.54 matthew 1068: my $request_aborted;
1.31 matthew 1069:
1.76 matthew 1070: my $total_formula;
1.101 matthew 1071: my $maximum_formula;
1.115 matthew 1072: my %formula_data;
1073:
1074: my $navmap;
1075: my @sequences;
1.76 matthew 1076:
1.125 albertel 1077: sub excel_cleanup {
1.31 matthew 1078: #
1.66 matthew 1079: undef ($excel_sheet);
1080: undef ($excel_workbook);
1081: undef ($filename);
1082: undef ($rows_output);
1083: undef ($cols_output);
1084: undef (%prog_state);
1085: undef ($request_aborted);
1.76 matthew 1086: undef ($total_formula);
1.101 matthew 1087: undef ($maximum_formula);
1.66 matthew 1088: #
1.115 matthew 1089: undef(%formula_data);
1090: #
1091: undef($navmap);
1092: undef(@sequences);
1.125 albertel 1093: }
1094:
1095: sub excel_initialize {
1096: my ($r) = @_;
1097:
1098: &excel_cleanup();
1.115 matthew 1099: ($navmap,@sequences) =
1100: &Apache::lonstatistics::selected_sequences_with_assessments();
1101: if (! ref($navmap)) {
1102: # Unable to get data, so bail out
1.169.2.6 raeburn 1103: $r->print('<p class="LC_error">'.
1.115 matthew 1104: &mt('Unable to retrieve course information.').
1.169.2.6 raeburn 1105: '</p>');
1.115 matthew 1106: }
1107: #
1.54 matthew 1108: my $total_columns = scalar(&get_student_fields_to_show());
1.90 matthew 1109: my $num_students = scalar(@Apache::lonstatistics::Students);
1110: #
1.115 matthew 1111: foreach my $seq (@sequences) {
1.88 matthew 1112: if ($chosen_output->{'every_problem'}) {
1.115 matthew 1113: $total_columns+=&count_parts($navmap,$seq);
1.88 matthew 1114: }
1.87 matthew 1115: # Add 2 because we need a 'sequence_sum' and 'total' column for each
1.88 matthew 1116: $total_columns += 2;
1.54 matthew 1117: }
1.105 matthew 1118: my $too_many_cols_error_message =
1119: '<h2>'.&mt('Unable to Complete Request').'</h2>'.$/.
1.169.2.2 raeburn 1120: '<p class="LC_warning">'.&mt('LON-CAPA is unable to produce your Excel spreadsheet because your selections will result in more than 255 columns. Excel allows only 255 columns in a spreadsheet.').'</p>'.$/.
1.169.2.5 raeburn 1121: '<p>'.&mt('You may consider reducing the number of [_1]Sequences or Folders[_2] you have selected.','<b>','</b>').'</p>'.$/.
1122: '<p>'.&mt('LON-CAPA can produce [_1]CSV[_2] files of this data or Excel files of the [_1]Scores Summary[_2] data.','<b>','</b>').'</p>'.$/;
1.87 matthew 1123: if ($chosen_output->{'base'} eq 'tries' && $total_columns > 255) {
1.105 matthew 1124: $r->print($too_many_cols_error_message);
1125: $request_aborted = 1;
1.54 matthew 1126: }
1.87 matthew 1127: if ($chosen_output->{'base'} eq 'scores' && $total_columns > 255) {
1.105 matthew 1128: $r->print($too_many_cols_error_message);
1129: $request_aborted = 1;
1.54 matthew 1130: }
1131: return if ($request_aborted);
1132: #
1.32 matthew 1133: #
1134: $excel_workbook = undef;
1135: $excel_sheet = undef;
1136: #
1137: $rows_output = 0;
1138: $cols_output = 0;
1139: #
1.90 matthew 1140: # Determine rows
1141: my $header_row = $rows_output++;
1142: my $description_row = $rows_output++;
1.109 matthew 1143: my $notes_row = $rows_output++;
1.90 matthew 1144: $rows_output++; # blank row
1145: my $summary_header_row;
1146: if ($chosen_output->{'summary_table'}) {
1147: $summary_header_row = $rows_output++;
1.115 matthew 1148: $rows_output+= scalar(@sequences);
1.90 matthew 1149: $rows_output++;
1150: }
1151: my $sequence_name_row = $rows_output++;
1152: my $resource_name_row = $rows_output++;
1153: my $maximum_data_row = $rows_output++;
1154: if (! $chosen_output->{'maximum_row'}) {
1155: $rows_output--;
1156: }
1157: my $first_data_row = $rows_output++;
1158: #
1.32 matthew 1159: # Create sheet
1.117 matthew 1160: ($excel_workbook,$filename,$format)=
1161: &Apache::loncommon::create_workbook($r);
1162: return if (! defined($excel_workbook));
1.91 matthew 1163: #
1.32 matthew 1164: # Add a worksheet
1.121 albertel 1165: my $sheetname = $env{'course.'.$env{'request.course.id'}.'.description'};
1.67 matthew 1166: $sheetname = &Apache::loncommon::clean_excel_name($sheetname);
1.33 matthew 1167: $excel_sheet = $excel_workbook->addworksheet($sheetname);
1.85 matthew 1168: #
1.34 matthew 1169: # Put the course description in the header
1.90 matthew 1170: $excel_sheet->write($header_row,$cols_output++,
1.121 albertel 1171: $env{'course.'.$env{'request.course.id'}.'.description'},
1.85 matthew 1172: $format->{'h1'});
1.34 matthew 1173: $cols_output += 3;
1174: #
1175: # Put a description of the sections listed
1176: my $sectionstring = '';
1.119 matthew 1177: my @Sections = &Apache::lonstatistics::get_selected_sections();
1.120 matthew 1178: $excel_sheet->write($header_row,$cols_output++,
1.169 bisitz 1179: &Apache::lonstatistics::section_and_enrollment_description('localized'),
1.85 matthew 1180: $format->{'h3'});
1.34 matthew 1181: #
1182: # Put the date in there too
1.90 matthew 1183: $excel_sheet->write($header_row,$cols_output++,
1.157 bisitz 1184: &mt('Compiled on [_1]',&Apache::lonlocal::locallocaltime(time)),$format->{'h3'});
1.34 matthew 1185: #
1.54 matthew 1186: $cols_output = 0;
1.90 matthew 1187: $excel_sheet->write($description_row,$cols_output++,
1.157 bisitz 1188: &mt($chosen_output->{'shortdesc'}),
1.109 matthew 1189: $format->{'b'});
1190: #
1191: $cols_output = 0;
1192: $excel_sheet->write($notes_row,$cols_output++,
1193: $chosen_output->{'non_html_notes'},
1194: $format->{'i'});
1195:
1.90 matthew 1196: ##############################################
1197: # Output headings for the raw data
1198: ##############################################
1.86 matthew 1199: #
1.32 matthew 1200: # Add the student headers
1.34 matthew 1201: $cols_output = 0;
1.32 matthew 1202: foreach my $field (&get_student_fields_to_show()) {
1.169 bisitz 1203: $excel_sheet->write($resource_name_row,$cols_output++,&mt($field),
1.85 matthew 1204: $format->{'bold'});
1.32 matthew 1205: }
1206: #
1.54 matthew 1207: # Add the remaining column headers
1.76 matthew 1208: my $total_formula_string = '=0';
1.101 matthew 1209: my $maximum_formula_string = '=0';
1.115 matthew 1210: foreach my $seq (@sequences) {
1211: my $symb = $seq->symb;
1.86 matthew 1212: $excel_sheet->write($sequence_name_row,,
1.115 matthew 1213: $cols_output,$seq->compTitle,$format->{'bold'});
1.86 matthew 1214: # Determine starting cell
1.115 matthew 1215: $formula_data{$symb}->{'Excel:startcell'}=
1.86 matthew 1216: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1.90 matthew 1217: ($first_data_row,$cols_output);
1.115 matthew 1218: $formula_data{$symb}->{'Excel:startcol'}=$cols_output;
1.87 matthew 1219: my $count = 0;
1220: if ($chosen_output->{'every_problem'}) {
1.76 matthew 1221: # Put the names of the problems and parts into the sheet
1.115 matthew 1222: foreach my $res (&get_resources($navmap,$seq)) {
1223: if (scalar(@{$res->parts}) > 1) {
1224: foreach my $part (@{$res->parts}) {
1.86 matthew 1225: $excel_sheet->write($resource_name_row,
1.54 matthew 1226: $cols_output++,
1.115 matthew 1227: $res->compTitle.' part '.$res->part_display($part),
1.85 matthew 1228: $format->{'bold'});
1.106 matthew 1229: $count++;
1.54 matthew 1230: }
1231: } else {
1.86 matthew 1232: $excel_sheet->write($resource_name_row,
1.54 matthew 1233: $cols_output++,
1.115 matthew 1234: $res->compTitle,$format->{'bold'});
1.106 matthew 1235: $count++;
1.54 matthew 1236: }
1237: }
1.79 matthew 1238: }
1.87 matthew 1239: # Determine ending cell
1240: if ($count <= 1) {
1.115 matthew 1241: $formula_data{$symb}->{'Excel:endcell'} = $formula_data{$symb}->{'Excel:startcell'};
1242: $formula_data{$symb}->{'Excel:endcol'} = $formula_data{$symb}->{'Excel:startcol'};
1.87 matthew 1243: } else {
1.115 matthew 1244: $formula_data{$symb}->{'Excel:endcell'} =
1.87 matthew 1245: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1.90 matthew 1246: ($first_data_row,$cols_output-1);
1.115 matthew 1247: $formula_data{$symb}->{'Excel:endcol'} = $cols_output-1;
1.87 matthew 1248: }
1249: # Create the formula for summing up this sequence
1.115 matthew 1250: if (! exists($formula_data{$symb}->{'Excel:endcell'}) ||
1251: ! defined($formula_data{$symb}->{'Excel:endcell'})) {
1252: $formula_data{$symb}->{'Excel:endcell'} = $formula_data{$symb}->{'Excel:startcell'};
1253: }
1.128 bowersj2 1254:
1.127 bowersj2 1255: my $start = $formula_data{$symb}->{'Excel:startcell'};
1256: my $end = $formula_data{$symb}->{'Excel:endcell'};
1.115 matthew 1257: $formula_data{$symb}->{'Excel:sum'}= $excel_sheet->store_formula
1.127 bowersj2 1258: ("=IF(COUNT($start\:$end),SUM($start\:$end),\"\")");
1.79 matthew 1259: # Determine cell the score is held in
1.115 matthew 1260: $formula_data{$symb}->{'Excel:scorecell'} =
1.79 matthew 1261: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1.90 matthew 1262: ($first_data_row,$cols_output);
1.115 matthew 1263: $formula_data{$symb}->{'Excel:scorecol'}=$cols_output;
1.87 matthew 1264: if ($chosen_output->{'base'} eq 'parts correct total') {
1.86 matthew 1265: $excel_sheet->write($resource_name_row,$cols_output++,
1.157 bisitz 1266: &mt('parts correct'),
1.85 matthew 1267: $format->{'bold'});
1.87 matthew 1268: } elsif ($chosen_output->{'sequence_sum'}) {
1269: if ($chosen_output->{'correct'}) {
1270: # Only reporting the number correct, so do not call it score
1271: $excel_sheet->write($resource_name_row,$cols_output++,
1.157 bisitz 1272: &mt('sum'),
1.87 matthew 1273: $format->{'bold'});
1274: } else {
1275: $excel_sheet->write($resource_name_row,$cols_output++,
1.157 bisitz 1276: &mt('score'),
1.87 matthew 1277: $format->{'bold'});
1278: }
1.32 matthew 1279: }
1.79 matthew 1280: #
1281: $total_formula_string.='+'.
1282: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1.90 matthew 1283: ($first_data_row,$cols_output-1);
1.87 matthew 1284: if ($chosen_output->{'sequence_max'}) {
1.101 matthew 1285: $excel_sheet->write($resource_name_row,$cols_output,
1.157 bisitz 1286: &mt('maximum'),
1.87 matthew 1287: $format->{'bold'});
1.115 matthew 1288: $formula_data{$symb}->{'Excel:maxcell'} =
1.101 matthew 1289: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1290: ($first_data_row,$cols_output);
1.115 matthew 1291: $formula_data{$symb}->{'Excel:maxcol'}=$cols_output;
1.101 matthew 1292: $maximum_formula_string.='+'.
1293: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1294: ($first_data_row,$cols_output);
1295: $cols_output++;
1296:
1.87 matthew 1297: }
1298: }
1299: if ($chosen_output->{'grand_total'}) {
1.157 bisitz 1300: $excel_sheet->write($resource_name_row,$cols_output++,&mt('Total'),
1.85 matthew 1301: $format->{'bold'});
1.32 matthew 1302: }
1.101 matthew 1303: if ($chosen_output->{'grand_maximum'}) {
1.157 bisitz 1304: $excel_sheet->write($resource_name_row,$cols_output++,&mt('Max. Total'),
1.101 matthew 1305: $format->{'bold'});
1306: }
1.76 matthew 1307: $total_formula = $excel_sheet->store_formula($total_formula_string);
1.101 matthew 1308: $maximum_formula = $excel_sheet->store_formula($maximum_formula_string);
1.90 matthew 1309: ##############################################
1.87 matthew 1310: # Output a row for MAX, if appropriate
1.90 matthew 1311: ##############################################
1312: if ($chosen_output->{'maximum_row'}) {
1.87 matthew 1313: $cols_output = 0;
1314: foreach my $field (&get_student_fields_to_show()) {
1315: if ($field eq 'username' || $field eq 'fullname' ||
1316: $field eq 'id') {
1317: $excel_sheet->write($maximum_data_row,$cols_output++,'Maximum',
1318: $format->{'bold'});
1319: } else {
1320: $excel_sheet->write($maximum_data_row,$cols_output++,'');
1321: }
1.54 matthew 1322: }
1.87 matthew 1323: #
1324: # Add the maximums for each sequence or assessment
1325: my %total_cell_translation;
1.101 matthew 1326: my %maximum_cell_translation;
1.115 matthew 1327: foreach my $seq (@sequences) {
1328: my $symb = $seq->symb;
1329: $cols_output=$formula_data{$symb}->{'Excel:startcol'};
1330: $total_cell_translation{$formula_data{$symb}->{'Excel:scorecell'}}=
1.87 matthew 1331: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1.115 matthew 1332: ($maximum_data_row,$formula_data{$symb}->{'Excel:scorecol'});
1333: $maximum_cell_translation{$formula_data{$symb}->{'Excel:maxcell'}}=
1.101 matthew 1334: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1.115 matthew 1335: ($maximum_data_row,$formula_data{$symb}->{'Excel:maxcol'});
1.87 matthew 1336: my $weight;
1337: my $max = 0;
1.115 matthew 1338: foreach my $resource (&get_resources($navmap,$seq)) {
1339: foreach my $part (@{$resource->parts}){
1.87 matthew 1340: $weight = 1;
1341: if ($chosen_output->{'scores'}) {
1342: $weight = &Apache::lonnet::EXT
1.128 bowersj2 1343: ('resource.'.$part.'.weight',$resource->symb,
1.87 matthew 1344: undef,undef,undef);
1345: if (!defined($weight) || ($weight eq '')) {
1346: $weight=1;
1347: }
1348: }
1349: if ($chosen_output->{'scores'} &&
1350: $chosen_output->{'every_problem'}) {
1351: $excel_sheet->write($maximum_data_row,$cols_output++,
1352: $weight);
1.54 matthew 1353: }
1.87 matthew 1354: $max += $weight;
1.54 matthew 1355: }
1.87 matthew 1356: }
1357: #
1358: if ($chosen_output->{'sequence_sum'} &&
1359: $chosen_output->{'every_problem'}) {
1.110 albertel 1360: my %replaceCells=
1.115 matthew 1361: ('^'.$formula_data{$symb}->{'Excel:startcell'}.':'.
1362: $formula_data{$symb}->{'Excel:endcell'}.'$' =>
1363: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell($maximum_data_row,$formula_data{$symb}->{'Excel:startcol'}).':'.
1364: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell($maximum_data_row,$formula_data{$symb}->{'Excel:endcol'}));
1.87 matthew 1365: $excel_sheet->repeat_formula($maximum_data_row,$cols_output++,
1.115 matthew 1366: $formula_data{$symb}->{'Excel:sum'},undef,
1.127 bowersj2 1367: %replaceCells, %replaceCells);
1.110 albertel 1368:
1.87 matthew 1369: } elsif ($chosen_output->{'sequence_sum'}) {
1370: $excel_sheet->write($maximum_data_row,$cols_output++,$max);
1371: }
1372: if ($chosen_output->{'sequence_max'}) {
1373: $excel_sheet->write($maximum_data_row,$cols_output++,$max);
1.45 matthew 1374: }
1.87 matthew 1375: #
1.45 matthew 1376: }
1.87 matthew 1377: if ($chosen_output->{'grand_total'}) {
1.86 matthew 1378: $excel_sheet->repeat_formula($maximum_data_row,$cols_output++,
1.87 matthew 1379: $total_formula,undef,
1380: %total_cell_translation);
1.79 matthew 1381: }
1.101 matthew 1382: if ($chosen_output->{'grand_maximum'}) {
1383: $excel_sheet->repeat_formula($maximum_data_row,$cols_output++,
1384: $maximum_formula,undef,
1.107 matthew 1385: %maximum_cell_translation);
1.101 matthew 1386: }
1.90 matthew 1387: } # End of MAXIMUM row output if ($chosen_output->{'maximum_row'}) {
1.86 matthew 1388: $rows_output = $first_data_row;
1.90 matthew 1389: ##############################################
1390: # Output summary table, which actually is above the sequence name row.
1391: ##############################################
1392: if ($chosen_output->{'summary_table'}) {
1393: $cols_output = 0;
1394: $excel_sheet->write($summary_header_row,$cols_output++,
1.157 bisitz 1395: &mt('Summary Table'),$format->{'bold'});
1.90 matthew 1396: if ($chosen_output->{'maximum_row'}) {
1397: $excel_sheet->write($summary_header_row,$cols_output++,
1.157 bisitz 1398: &mt('Maximum'),$format->{'bold'});
1.90 matthew 1399: }
1400: $excel_sheet->write($summary_header_row,$cols_output++,
1.157 bisitz 1401: &mt('Average'),$format->{'bold'});
1.90 matthew 1402: $excel_sheet->write($summary_header_row,$cols_output++,
1.157 bisitz 1403: &mt('Median'),$format->{'bold'});
1.90 matthew 1404: $excel_sheet->write($summary_header_row,$cols_output++,
1.157 bisitz 1405: &mt('Std Dev'),$format->{'bold'});
1.90 matthew 1406: my $row = $summary_header_row+1;
1.115 matthew 1407: foreach my $seq (@sequences) {
1408: my $symb = $seq->symb;
1.90 matthew 1409: $cols_output = 0;
1410: $excel_sheet->write($row,$cols_output++,
1.115 matthew 1411: $seq->compTitle,
1.90 matthew 1412: $format->{'bold'});
1413: if ($chosen_output->{'maximum_row'}) {
1414: $excel_sheet->write
1415: ($row,$cols_output++,
1416: '='.
1417: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1.115 matthew 1418: ($maximum_data_row,$formula_data{$symb}->{'Excel:scorecol'})
1.90 matthew 1419: );
1420: }
1421: my $range =
1422: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1.115 matthew 1423: ($first_data_row,$formula_data{$symb}->{'Excel:scorecol'}).
1.90 matthew 1424: ':'.
1425: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1.115 matthew 1426: ($first_data_row+$num_students-1,$formula_data{$symb}->{'Excel:scorecol'});
1.90 matthew 1427: $excel_sheet->write($row,$cols_output++,
1428: '=AVERAGE('.$range.')');
1429: $excel_sheet->write($row,$cols_output++,
1430: '=MEDIAN('.$range.')');
1431: $excel_sheet->write($row,$cols_output++,
1432: '=STDEV('.$range.')');
1433: $row++;
1434: }
1435: }
1436: ##############################################
1437: # Take care of non-excel initialization
1438: ##############################################
1.32 matthew 1439: #
1440: # Let the user know what we are doing
1441: my $studentcount = scalar(@Apache::lonstatistics::Students);
1.121 albertel 1442: if ($env{'form.SelectedStudent'}) {
1.85 matthew 1443: $studentcount = '1';
1444: }
1.153 bisitz 1445: $r->print('<p>'
1446: .&mt('Compiling Excel spreadsheet for [quant,_1,student]...',$studentcount)
1447: ."</p>\n"
1448: );
1.32 matthew 1449: $r->rflush();
1.31 matthew 1450: #
1.36 matthew 1451: # Initialize progress window
1.165 www 1452: %prog_state=&Apache::lonhtmlcommon::Create_PrgWin($r,$studentcount);
1.36 matthew 1453: #
1.62 matthew 1454: &Apache::lonhtmlcommon::Update_PrgWin($r,\%prog_state,
1455: 'Processing first student');
1.31 matthew 1456: return;
1457: }
1458:
1459: sub excel_outputstudent {
1460: my ($r,$student) = @_;
1.115 matthew 1461: if ($request_aborted || ! defined($navmap) || ! defined($excel_sheet)) {
1462: return;
1463: }
1.32 matthew 1464: $cols_output=0;
1465: #
1466: # Write out student data
1467: my @to_show = &get_student_fields_to_show();
1468: foreach my $field (@to_show) {
1.103 matthew 1469: my $value = $student->{$field};
1470: if ($field eq 'comments') {
1.136 albertel 1471: $value = &Apache::lonmsgdisplay::retrieve_instructor_comments
1.103 matthew 1472: ($student->{'username'},$student->{'domain'});
1473: }
1474: $excel_sheet->write($rows_output,$cols_output++,$value);
1.32 matthew 1475: }
1476: #
1477: # Get student assessment data
1478: my %StudentsData;
1479: my @tmp = &Apache::loncoursedata::get_current_state($student->{'username'},
1480: $student->{'domain'},
1481: undef,
1.121 albertel 1482: $env{'request.course.id'});
1.32 matthew 1483: if ((scalar @tmp > 0) && ($tmp[0] !~ /^error:/)) {
1484: %StudentsData = @tmp;
1485: }
1486: #
1487: # Write out sequence scores and totals data
1.76 matthew 1488: my %total_cell_translation;
1.101 matthew 1489: my %maximum_cell_translation;
1.115 matthew 1490: foreach my $seq (@sequences) {
1491: my $symb = $seq->symb;
1.164 raeburn 1492: my $randompick = $seq->randompick();
1.115 matthew 1493: $cols_output = $formula_data{$symb}->{'Excel:startcol'};
1.76 matthew 1494: # Keep track of cells to translate in total cell
1.115 matthew 1495: $total_cell_translation{$formula_data{$symb}->{'Excel:scorecell'}} =
1.76 matthew 1496: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1.115 matthew 1497: ($rows_output,$formula_data{$symb}->{'Excel:scorecol'});
1.107 matthew 1498: # and maximum cell
1.115 matthew 1499: $maximum_cell_translation{$formula_data{$symb}->{'Excel:maxcell'}} =
1.107 matthew 1500: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1.115 matthew 1501: ($rows_output,$formula_data{$symb}->{'Excel:maxcol'});
1.76 matthew 1502: #
1.54 matthew 1503: my ($performance,$performance_length,$score,$seq_max,$rawdata);
1.87 matthew 1504: if ($chosen_output->{'tries'} || $chosen_output->{'correct'}){
1.54 matthew 1505: ($performance,$performance_length,$score,$seq_max,$rawdata) =
1.115 matthew 1506: &student_tries_on_sequence($student,\%StudentsData,
1.164 raeburn 1507: $navmap,$seq,'no',$randompick);
1.54 matthew 1508: } else {
1509: ($performance,$performance_length,$score,$seq_max,$rawdata) =
1.115 matthew 1510: &student_performance_on_sequence($student,\%StudentsData,
1.129 bowersj2 1511: $navmap,$seq,'no',
1.164 raeburn 1512: $chosen_output->{ignore_weight},
1513: $randompick);
1.87 matthew 1514: }
1515: if ($chosen_output->{'every_problem'}) {
1516: if ($chosen_output->{'correct'}) {
1517: # only indiciate if each item is correct or not
1518: foreach my $value (@$rawdata) {
1.126 bowersj2 1519: # positive means correct, 0 or negative means
1520: # incorrect
1521: $value = $value > 0 ? 1 : 0;
1.87 matthew 1522: $excel_sheet->write($rows_output,$cols_output++,$value);
1523: }
1524: } else {
1525: foreach my $value (@$rawdata) {
1.97 matthew 1526: if ($score eq ' ' || !defined($value)) {
1527: $cols_output++;
1528: } else {
1529: $excel_sheet->write($rows_output,$cols_output++,
1530: $value);
1531: }
1.87 matthew 1532: }
1533: }
1.54 matthew 1534: }
1.87 matthew 1535: if ($chosen_output->{'sequence_sum'} &&
1536: $chosen_output->{'every_problem'}) {
1.76 matthew 1537: # Write a formula for the sum of this sequence
1.110 albertel 1538: my %replaceCells=
1.115 matthew 1539: ('^'.$formula_data{$symb}->{'Excel:startcell'}.':'.$formula_data{$symb}->{'Excel:endcell'}.'$'
1.110 albertel 1540: =>
1.115 matthew 1541: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell($rows_output,$formula_data{$symb}->{'Excel:startcol'}).':'.
1542: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell($rows_output,$formula_data{$symb}->{'Excel:endcol'})
1.110 albertel 1543: );
1544: # The undef is for the format
1545: $excel_sheet->repeat_formula($rows_output,$cols_output++,
1.115 matthew 1546: $formula_data{$symb}->{'Excel:sum'},undef,
1.127 bowersj2 1547: %replaceCells, %replaceCells);
1.87 matthew 1548: } elsif ($chosen_output->{'sequence_sum'}) {
1.97 matthew 1549: if ($score eq ' ') {
1550: $cols_output++;
1551: } else {
1552: $excel_sheet->write($rows_output,$cols_output++,$score);
1553: }
1.32 matthew 1554: }
1.87 matthew 1555: if ($chosen_output->{'sequence_max'}) {
1.32 matthew 1556: $excel_sheet->write($rows_output,$cols_output++,$seq_max);
1557: }
1558: }
1.76 matthew 1559: #
1.87 matthew 1560: if ($chosen_output->{'grand_total'}) {
1561: $excel_sheet->repeat_formula($rows_output,$cols_output++,
1562: $total_formula,undef,
1563: %total_cell_translation);
1564: }
1.101 matthew 1565: if ($chosen_output->{'grand_maximum'}) {
1566: $excel_sheet->repeat_formula($rows_output,$cols_output++,
1567: $maximum_formula,undef,
1.107 matthew 1568: %maximum_cell_translation);
1.101 matthew 1569: }
1.32 matthew 1570: #
1571: # Bookkeeping
1572: $rows_output++;
1573: $cols_output=0;
1574: #
1.36 matthew 1575: # Update the progress window
1576: &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,'last student');
1.32 matthew 1577: return;
1.31 matthew 1578: }
1579:
1580: sub excel_finish {
1581: my ($r) = @_;
1.115 matthew 1582: if ($request_aborted || ! defined($navmap) || ! defined($excel_sheet)) {
1.125 albertel 1583: &excel_cleanup();
1.115 matthew 1584: return;
1585: }
1.32 matthew 1586: #
1587: # Write the excel file
1588: $excel_workbook->close();
1589: #
1.36 matthew 1590: # Close the progress window
1591: &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
1592: #
1.32 matthew 1593: # Tell the user where to get their excel file
1.36 matthew 1594: $r->print('<br />'.
1.153 bisitz 1595: '<a href="'.$filename.'">'.&mt('Your Excel spreadsheet').'</a>'."\n");
1.32 matthew 1596: $r->rflush();
1.125 albertel 1597: &excel_cleanup();
1.32 matthew 1598: return;
1.31 matthew 1599: }
1600:
1601: }
1.30 matthew 1602: #######################################################
1603: #######################################################
1604:
1605: =pod
1606:
1.31 matthew 1607: =head2 CSV output routines
1608:
1609: =item &csv_initialize($r)
1610:
1611: =item &csv_outputstudent($r,$student)
1612:
1613: =item &csv_finish($r)
1.30 matthew 1614:
1615: =cut
1616:
1617: #######################################################
1618: #######################################################
1.31 matthew 1619: {
1620:
1.37 matthew 1621: my $outputfile;
1622: my $filename;
1.54 matthew 1623: my $request_aborted;
1.37 matthew 1624: my %prog_state; # progress window state
1.115 matthew 1625: my $navmap;
1626: my @sequences;
1.37 matthew 1627:
1.125 albertel 1628: sub csv_cleanup {
1.66 matthew 1629: undef($outputfile);
1630: undef($filename);
1631: undef($request_aborted);
1.37 matthew 1632: undef(%prog_state);
1633: #
1.115 matthew 1634: undef($navmap);
1635: undef(@sequences);
1.125 albertel 1636: }
1637:
1638: sub csv_initialize{
1639: my ($r) = @_;
1640:
1641: &csv_cleanup();
1.115 matthew 1642: ($navmap,@sequences) =
1643: &Apache::lonstatistics::selected_sequences_with_assessments();
1644: if (! ref($navmap)) {
1645: # Unable to get data, so bail out
1.169.2.6 raeburn 1646: $r->print('<p class="LC_error">'.
1.115 matthew 1647: &mt('Unable to retrieve course information.').
1.169.2.6 raeburn 1648: '</p>');
1.115 matthew 1649: }
1650: #
1.54 matthew 1651: # Deal with unimplemented requests
1652: $request_aborted = undef;
1.87 matthew 1653: if ($chosen_output->{'base'} =~ /final table/) {
1.169.2.2 raeburn 1654: $r->print(
1655: '<h2>'.&mt('Unable to Complete Request').'</h2>'
1656: .'<p class="LC_warning">'
1657: .&mt('The [_1]Summary Table (Scores)[_2] option'
1658: .' is not available for non-HTML output.','<b>','</b>')
1659: .'</p>'
1660: );
1661: $request_aborted = 1;
1.54 matthew 1662: }
1663: return if ($request_aborted);
1.87 matthew 1664: #
1665: # Initialize progress window
1666: my $studentcount = scalar(@Apache::lonstatistics::Students);
1.165 www 1667: %prog_state=&Apache::lonhtmlcommon::Create_PrgWin($r,$studentcount);
1.54 matthew 1668: #
1.37 matthew 1669: # Open a file
1.120 matthew 1670: ($outputfile,$filename) = &Apache::loncommon::create_text_file($r,'csv');
1671: if (! defined($outputfile)) { return ''; }
1.38 matthew 1672: #
1673: # Datestamp
1.121 albertel 1674: my $description = $env{'course.'.$env{'request.course.id'}.'.description'};
1.38 matthew 1675: print $outputfile '"'.&Apache::loncommon::csv_translate($description).'",'.
1.161 raeburn 1676: '"'.&Apache::loncommon::csv_translate(scalar(&Apache::lonlocal::locallocaltime(time))).'"'.
1.38 matthew 1677: "\n";
1.120 matthew 1678: print $outputfile '"'.
1679: &Apache::loncommon::csv_translate
1680: (&Apache::lonstatistics::section_and_enrollment_description()).
1681: '"'."\n";
1.109 matthew 1682: foreach my $item ('shortdesc','non_html_notes') {
1683: next if (! exists($chosen_output->{$item}));
1684: print $outputfile
1685: '"'.&Apache::loncommon::csv_translate($chosen_output->{$item}).'"'.
1686: "\n";
1687: }
1.37 matthew 1688: #
1689: # Print out the headings
1.87 matthew 1690: my $sequence_row = '';
1691: my $resource_row = undef;
1.37 matthew 1692: foreach my $field (&get_student_fields_to_show()) {
1.87 matthew 1693: $sequence_row .='"",';
1694: $resource_row .= '"'.&Apache::loncommon::csv_translate($field).'",';
1.37 matthew 1695: }
1.115 matthew 1696: foreach my $seq (@sequences) {
1.87 matthew 1697: $sequence_row .= '"'.
1.115 matthew 1698: &Apache::loncommon::csv_translate($seq->compTitle).'",';
1.87 matthew 1699: my $count = 0;
1700: if ($chosen_output->{'every_problem'}) {
1.116 matthew 1701: foreach my $res (&get_resources($navmap,$seq)) {
1.115 matthew 1702: if (scalar(@{$res->parts}) < 1) {
1.87 matthew 1703: next;
1704: }
1.115 matthew 1705: foreach my $part (@{$res->parts}) {
1.87 matthew 1706: $resource_row .= '"'.
1.115 matthew 1707: &Apache::loncommon::csv_translate
1708: ($res->compTitle.', Part '.$res->part_display($part)).'",';
1.87 matthew 1709: $count++;
1.53 matthew 1710: }
1711: }
1.37 matthew 1712: }
1.87 matthew 1713: $sequence_row.='"",'x$count;
1714: if ($chosen_output->{'sequence_sum'}) {
1715: if($chosen_output->{'correct'}) {
1.157 bisitz 1716: $resource_row .= '"'.&mt('sum').'",';
1.87 matthew 1717: } else {
1.157 bisitz 1718: $resource_row .= '"'.&mt('score').'",';
1.87 matthew 1719: }
1720: }
1721: if ($chosen_output->{'sequence_max'}) {
1722: $sequence_row.= '"",';
1.157 bisitz 1723: $resource_row .= '"'.&mt('maximum possible').'",';
1.87 matthew 1724: }
1.37 matthew 1725: }
1.87 matthew 1726: if ($chosen_output->{'grand_total'}) {
1727: $sequence_row.= '"",';
1.157 bisitz 1728: $resource_row.= '"'.&mt('Total').'",';
1.87 matthew 1729: }
1.101 matthew 1730: if ($chosen_output->{'grand_maximum'}) {
1731: $sequence_row.= '"",';
1.157 bisitz 1732: $resource_row.= '"'.&mt('Maximum').'",';
1.101 matthew 1733: }
1.87 matthew 1734: chomp($sequence_row);
1735: chomp($resource_row);
1736: print $outputfile $sequence_row."\n";
1737: print $outputfile $resource_row."\n";
1.31 matthew 1738: return;
1739: }
1740:
1741: sub csv_outputstudent {
1742: my ($r,$student) = @_;
1.115 matthew 1743: if ($request_aborted || ! defined($navmap) || ! defined($outputfile)) {
1744: return;
1745: }
1.37 matthew 1746: my $Str = '';
1747: #
1748: # Output student fields
1749: my @to_show = &get_student_fields_to_show();
1750: foreach my $field (@to_show) {
1.103 matthew 1751: my $value = $student->{$field};
1752: if ($field eq 'comments') {
1.136 albertel 1753: $value = &Apache::lonmsgdisplay::retrieve_instructor_comments
1.103 matthew 1754: ($student->{'username'},$student->{'domain'});
1755: }
1756: $Str .= '"'.&Apache::loncommon::csv_translate($value).'",';
1.37 matthew 1757: }
1758: #
1759: # Get student assessment data
1760: my %StudentsData;
1761: my @tmp = &Apache::loncoursedata::get_current_state($student->{'username'},
1762: $student->{'domain'},
1763: undef,
1.121 albertel 1764: $env{'request.course.id'});
1.37 matthew 1765: if ((scalar @tmp > 0) && ($tmp[0] !~ /^error:/)) {
1766: %StudentsData = @tmp;
1767: }
1768: #
1769: # Output performance data
1.87 matthew 1770: my $total = 0;
1.101 matthew 1771: my $maximum = 0;
1.115 matthew 1772: foreach my $seq (@sequences) {
1.164 raeburn 1773: my $randompick = $seq->randompick();
1.54 matthew 1774: my ($performance,$performance_length,$score,$seq_max,$rawdata);
1.87 matthew 1775: if ($chosen_output->{'tries'}){
1.54 matthew 1776: ($performance,$performance_length,$score,$seq_max,$rawdata) =
1.115 matthew 1777: &student_tries_on_sequence($student,\%StudentsData,
1.164 raeburn 1778: $navmap,$seq,'no',$randompick);
1.54 matthew 1779: } else {
1780: ($performance,$performance_length,$score,$seq_max,$rawdata) =
1.115 matthew 1781: &student_performance_on_sequence($student,\%StudentsData,
1.129 bowersj2 1782: $navmap,$seq,'no',
1.164 raeburn 1783: $chosen_output->{ignore_weight},
1784: $randompick);
1.54 matthew 1785: }
1.87 matthew 1786: if ($chosen_output->{'every_problem'}) {
1787: if ($chosen_output->{'correct'}) {
1788: $score = 0;
1789: # Deal with number of parts correct data
1790: $Str .= '"'.join('","',( map { if ($_>0) {
1791: $score += 1;
1792: 1;
1793: } else {
1794: 0;
1795: }
1796: } @$rawdata)).'",';
1797: } else {
1798: $Str .= '"'.join('","',(@$rawdata)).'",';
1799: }
1800: }
1801: if ($chosen_output->{'sequence_sum'}) {
1.37 matthew 1802: $Str .= '"'.$score.'",';
1.87 matthew 1803: }
1804: if ($chosen_output->{'sequence_max'}) {
1805: $Str .= '"'.$seq_max.'",';
1.37 matthew 1806: }
1.87 matthew 1807: $total+=$score;
1.101 matthew 1808: $maximum += $seq_max;
1.87 matthew 1809: }
1810: if ($chosen_output->{'grand_total'}) {
1811: $Str .= '"'.$total.'",';
1.101 matthew 1812: }
1813: if ($chosen_output->{'grand_maximum'}) {
1814: $Str .= '"'.$maximum.'",';
1.37 matthew 1815: }
1816: chop($Str);
1817: $Str .= "\n";
1818: print $outputfile $Str;
1819: #
1820: # Update the progress window
1821: &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,'last student');
1822: return;
1.31 matthew 1823: }
1824:
1825: sub csv_finish {
1826: my ($r) = @_;
1.115 matthew 1827: if ($request_aborted || ! defined($navmap) || ! defined($outputfile)) {
1.125 albertel 1828: &csv_cleanup();
1.115 matthew 1829: return;
1830: }
1.37 matthew 1831: close($outputfile);
1832: #
1833: # Close the progress window
1834: &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
1835: #
1836: # Tell the user where to get their csv file
1837: $r->print('<br />'.
1.147 bisitz 1838: '<a href="'.$filename.'">'.&mt('Your CSV file.').'</a>'."\n");
1.37 matthew 1839: $r->rflush();
1.125 albertel 1840: &csv_cleanup();
1.37 matthew 1841: return;
1842:
1.31 matthew 1843: }
1.2 stredwic 1844:
1845: }
1846:
1.132 bowersj2 1847: # This function will return an HTML string including a star, with
1848: # a mouseover popup showing the "real" value. An optional second
1849: # argument lets you show something other than a star.
1850: sub show_star {
1851: my $popup = shift;
1852: my $symbol = shift || '*';
1853: # Escape the popup for JS.
1854: $popup =~ s/([^-a-zA-Z0-9:;,._ ()|!\/?=&*])/'\\' . sprintf("%lo", ord($1))/ge;
1855:
1.142 albertel 1856: return "<span class=\"LC_chrt_popup_exists\" onmouseover='popup_score(this, \"$popup\");return false;' onmouseout='popdown_score();return false;'>$symbol</span>";
1.132 bowersj2 1857: }
1858:
1.28 matthew 1859: #######################################################
1860: #######################################################
1861:
1.2 stredwic 1862: =pod
1863:
1.54 matthew 1864: =item &StudentTriesOnSequence()
1.2 stredwic 1865:
1.30 matthew 1866: Inputs:
1.2 stredwic 1867:
1868: =over 4
1869:
1.30 matthew 1870: =item $student
1.28 matthew 1871:
1.30 matthew 1872: =item $studentdata Hash ref to all student data
1.2 stredwic 1873:
1.30 matthew 1874: =item $seq Hash ref, the sequence we are working on
1.2 stredwic 1875:
1.30 matthew 1876: =item $links if defined we will output links to each resource.
1.2 stredwic 1877:
1.28 matthew 1878: =back
1.2 stredwic 1879:
1880: =cut
1.1 stredwic 1881:
1.28 matthew 1882: #######################################################
1883: #######################################################
1.112 matthew 1884: sub student_tries_on_sequence {
1.164 raeburn 1885: my ($student,$studentdata,$navmap,$seq,$links,$randompick) = @_;
1.31 matthew 1886: $links = 'no' if (! defined($links));
1.1 stredwic 1887: my $Str = '';
1.30 matthew 1888: my ($sum,$max) = (0,0);
1.51 matthew 1889: my $performance_length = 0;
1.54 matthew 1890: my @TriesData = ();
1891: my $tries;
1.97 matthew 1892: my $hasdata = 0; # flag - true if the student has any data on the sequence
1.115 matthew 1893: foreach my $resource (&get_resources($navmap,$seq)) {
1.112 matthew 1894: my $resource_data = $studentdata->{$resource->symb};
1.30 matthew 1895: my $value = '';
1.112 matthew 1896: foreach my $partnum (@{$resource->parts()}) {
1.54 matthew 1897: $tries = undef;
1.30 matthew 1898: $max++;
1.51 matthew 1899: $performance_length++;
1.30 matthew 1900: my $symbol = ' '; # default to space
1901: #
1.78 matthew 1902: my $awarded = 0;
1903: if (exists($resource_data->{'resource.'.$partnum.'.awarded'})) {
1904: $awarded = $resource_data->{'resource.'.$partnum.'.awarded'};
1905: $awarded = 0 if (! $awarded);
1906: }
1907: #
1908: my $status = '';
1.30 matthew 1909: if (exists($resource_data->{'resource.'.$partnum.'.solved'})) {
1.78 matthew 1910: $status = $resource_data->{'resource.'.$partnum.'.solved'};
1911: }
1912: #
1913: my $tries = 0;
1914: if(exists($resource_data->{'resource.'.$partnum.'.tries'})) {
1915: $tries = $resource_data->{'resource.'.$partnum.'.tries'};
1.97 matthew 1916: $hasdata =1;
1.78 matthew 1917: }
1918: #
1919: if ($awarded > 0) {
1920: # The student has gotten the problem correct to some degree
1921: if ($status eq 'excused') {
1922: $symbol = 'x';
1923: $max--;
1.137 albertel 1924: } elsif ($status eq 'correct_by_override' && !$resource->is_task()) {
1.30 matthew 1925: $symbol = '+';
1926: $sum++;
1.78 matthew 1927: } elsif ($tries > 0) {
1.54 matthew 1928: if ($tries > 9) {
1.132 bowersj2 1929: $symbol = show_star($tries);
1.78 matthew 1930: } else {
1.54 matthew 1931: $symbol = $tries;
1.30 matthew 1932: }
1933: $sum++;
1934: } else {
1.78 matthew 1935: $symbol = '+';
1936: $sum++;
1.2 stredwic 1937: }
1.30 matthew 1938: } else {
1.78 matthew 1939: # The student has the problem incorrect or it is ungraded
1940: if ($status eq 'excused') {
1941: $symbol = 'x';
1942: $max--;
1943: } elsif ($status eq 'incorrect_by_override') {
1944: $symbol = '-';
1945: } elsif ($status eq 'ungraded_attempted') {
1.124 matthew 1946: $symbol = 'u';
1.78 matthew 1947: } elsif ($status eq 'incorrect_attempted' ||
1948: $tries > 0) {
1.30 matthew 1949: $symbol = '.';
1950: } else {
1.78 matthew 1951: # Problem is wrong and has not been attempted.
1952: $symbol=' ';
1.18 matthew 1953: }
1.2 stredwic 1954: }
1.54 matthew 1955: #
1.109 matthew 1956: if (! defined($tries)) {
1957: $tries = 0;
1958: }
1959: if ($status =~ /^(incorrect|ungraded)/) {
1960: # Bug 3390: show '-' for tries on incorrect problems
1961: # (csv & excel only)
1962: push(@TriesData,-$tries);
1963: } else {
1964: push (@TriesData,$tries);
1.54 matthew 1965: }
1.30 matthew 1966: #
1.47 matthew 1967: if ( ($links eq 'yes' && $symbol ne ' ') ||
1968: ($links eq 'all')) {
1.134 bowersj2 1969: my $link = '/adm/grades'.
1.148 raeburn 1970: '?symb='.&escape($resource->shown_symb).
1.169.2.4 raeburn 1971: '&student='.$student->{'username'}.
1972: '&userdom='.$student->{'domain'}.
1973: '&command=submission';
1.134 bowersj2 1974: $symbol = &link($symbol, $link);
1.30 matthew 1975: }
1976: $value .= $symbol;
1.2 stredwic 1977: }
1.30 matthew 1978: $Str .= $value;
1.17 minaeibi 1979: }
1.164 raeburn 1980: if ($randompick) {
1981: $max = $randompick;
1.51 matthew 1982: }
1.97 matthew 1983: if (! $hasdata && $sum == 0) {
1984: $sum = ' ';
1985: }
1.54 matthew 1986: return ($Str,$performance_length,$sum,$max,\@TriesData);
1987: }
1988:
1.134 bowersj2 1989: =pod
1990:
1991: =item &link
1992:
1993: Inputs:
1994:
1995: =over 4
1996:
1997: =item $text
1998:
1999: =item $target
2000:
2001: =back
2002:
2003: Takes the text and creates a link to the $text that honors
2004: the value of 'new window' if clicked on, but uses a real
2005: 'href' so middle and right clicks still work.
2006:
2007: $target and $text are assumed to be already correctly escaped; i.e., it
2008: can be dumped out directly into the output stream as-is.
2009:
2010: =cut
2011:
2012: sub link {
2013: my ($text,$target) = @_;
2014: return
2015: "<a href='$target' onclick=\"t=this.href;if(new_window)"
2016: ."{window.open(t)}else{return void(window."
2017: ."location=t)};return false;\">$text</a>";
2018: }
2019:
1.54 matthew 2020: #######################################################
2021: #######################################################
2022:
2023: =pod
2024:
1.115 matthew 2025: =item &student_performance_on_sequence
1.54 matthew 2026:
2027: Inputs:
2028:
2029: =over 4
2030:
2031: =item $student
2032:
2033: =item $studentdata Hash ref to all student data
2034:
2035: =item $seq Hash ref, the sequence we are working on
2036:
2037: =item $links if defined we will output links to each resource.
2038:
2039: =back
2040:
2041: =cut
2042:
2043: #######################################################
2044: #######################################################
1.112 matthew 2045: sub student_performance_on_sequence {
1.164 raeburn 2046: my ($student,$studentdata,$navmap,$seq,$links,$awarded_only,$randompick) = @_;
1.54 matthew 2047: $links = 'no' if (! defined($links));
2048: my $Str = ''; # final result string
2049: my ($score,$max) = (0,0);
2050: my $performance_length = 0;
2051: my $symbol;
2052: my @ScoreData = ();
2053: my $partscore;
1.97 matthew 2054: my $hasdata = 0; # flag, 0 if there were no submissions on the sequence
1.164 raeburn 2055: my %ptsfreq;
1.115 matthew 2056: foreach my $resource (&get_resources($navmap,$seq)) {
1.112 matthew 2057: my $symb = $resource->symb;
2058: my $resource_data = $studentdata->{$symb};
1.164 raeburn 2059: my $resmax = 0;
1.112 matthew 2060: foreach my $part (@{$resource->parts()}) {
1.54 matthew 2061: $partscore = undef;
1.129 bowersj2 2062: my $weight;
2063: if (!$awarded_only){
2064: $weight = &Apache::lonnet::EXT('resource.'.$part.'.weight',
2065: $symb,
2066: $student->{'domain'},
2067: $student->{'username'},
2068: $student->{'section'});
2069: }
1.54 matthew 2070: if (!defined($weight) || ($weight eq '')) {
2071: $weight=1;
2072: }
2073: #
2074: $max += $weight; # see the 'excused' branch below...
1.164 raeburn 2075: $resmax += $weight;
1.54 matthew 2076: $performance_length++; # one character per part
2077: $symbol = ' '; # default to space
2078: #
1.97 matthew 2079: my $awarded;
1.54 matthew 2080: if (exists($resource_data->{'resource.'.$part.'.awarded'})) {
2081: $awarded = $resource_data->{'resource.'.$part.'.awarded'};
1.67 matthew 2082: $awarded = 0 if (! $awarded);
1.97 matthew 2083: $hasdata = 1;
1.54 matthew 2084: }
2085: #
1.131 albertel 2086: $partscore = &Apache::grades::compute_points($weight,$awarded);
1.97 matthew 2087: if (! defined($awarded)) {
2088: $partscore = undef;
2089: }
1.54 matthew 2090: $score += $partscore;
1.63 matthew 2091: $symbol = $partscore;
1.70 matthew 2092: if (abs($symbol - sprintf("%.0f",$symbol)) < 0.001) {
2093: $symbol = sprintf("%.0f",$symbol);
2094: }
1.54 matthew 2095: if (length($symbol) > 1) {
1.132 bowersj2 2096: $symbol = show_star($symbol);
1.54 matthew 2097: }
1.124 matthew 2098: if (exists($resource_data->{'resource.'.$part.'.solved'}) &&
2099: $resource_data->{'resource.'.$part.'.solved'} ne '') {
1.54 matthew 2100: my $status = $resource_data->{'resource.'.$part.'.solved'};
2101: if ($status eq 'excused') {
2102: $symbol = 'x';
2103: $max -= $weight; # Do not count 'excused' problems.
1.124 matthew 2104: } elsif ($status eq 'ungraded_attempted') {
2105: $symbol = 'u';
1.54 matthew 2106: }
1.97 matthew 2107: $hasdata = 1;
1.124 matthew 2108: } elsif ($resource_data->{'resource.'.$part.'.award'} eq 'DRAFT') {
2109: $symbol = 'd';
2110: $hasdata = 1;
1.111 matthew 2111: } elsif (!exists($resource_data->{'resource.'.$part.'.awarded'})){
1.54 matthew 2112: # Unsolved. Did they try?
2113: if (exists($resource_data->{'resource.'.$part.'.tries'})){
2114: $symbol = '.';
1.97 matthew 2115: $hasdata = 1;
1.54 matthew 2116: } else {
2117: $symbol = ' ';
2118: }
2119: }
2120: #
1.60 matthew 2121: if (! defined($partscore)) {
2122: $partscore = $symbol;
2123: }
2124: push (@ScoreData,$partscore);
2125: #
1.54 matthew 2126: if ( ($links eq 'yes' && $symbol ne ' ') || ($links eq 'all')) {
1.134 bowersj2 2127: my $link = '/adm/grades' .
1.148 raeburn 2128: '?symb='.&escape($resource->shown_symb).
1.169.2.4 raeburn 2129: '&student='.$student->{'username'}.
2130: '&userdom='.$student->{'domain'}.
2131: '&command=submission';
1.134 bowersj2 2132: $symbol = &link($symbol, $link);
1.54 matthew 2133: }
1.60 matthew 2134: $Str .= $symbol;
1.54 matthew 2135: }
1.164 raeburn 2136: if ($ptsfreq{$resmax}) {
2137: $ptsfreq{$resmax} ++;
2138: } else {
2139: $ptsfreq{$resmax} = 1;
2140: }
2141: }
2142: if ($randompick) {
2143: my @uniquetotals = keys(%ptsfreq);
1.169.2.7! raeburn 2144: if ((@uniquetotals == 1) && ($ptsfreq{$uniquetotals[0]} > 0)) {
1.164 raeburn 2145: $max = $max * $randompick/$ptsfreq{$uniquetotals[0]};
2146: }
1.97 matthew 2147: }
2148: if (! $hasdata && $score == 0) {
2149: $score = ' ';
1.54 matthew 2150: }
2151: return ($Str,$performance_length,$score,$max,\@ScoreData);
1.1 stredwic 2152: }
1.23 minaeibi 2153:
1.28 matthew 2154: #######################################################
2155: #######################################################
1.23 minaeibi 2156:
1.2 stredwic 2157: =pod
2158:
2159: =item &CreateLegend()
2160:
2161: This function returns a formatted string containing the legend for the
2162: chart. The legend describes the symbols used to represent grades for
2163: problems.
2164:
2165: =cut
2166:
1.28 matthew 2167: #######################################################
2168: #######################################################
1.2 stredwic 2169: sub CreateLegend {
2170: my $Str = "<p><pre>".
1.124 matthew 2171: " digit score or number of tries to get correct ".
1.12 minaeibi 2172: " * correct by student in more than 9 tries\n".
1.20 minaeibi 2173: " + correct by hand grading or override\n".
1.12 minaeibi 2174: " - incorrect by override\n".
2175: " . incorrect attempted\n".
1.124 matthew 2176: " u ungraded attempted\n".
2177: " d draft answer saved but not submitted\n".
1.13 minaeibi 2178: " not attempted (blank field)\n".
1.12 minaeibi 2179: " x excused".
1.17 minaeibi 2180: "</pre><p>";
1.2 stredwic 2181: return $Str;
2182: }
2183:
1.28 matthew 2184: #######################################################
2185: #######################################################
2186:
1.30 matthew 2187: =pod
1.2 stredwic 2188:
2189: =back
2190:
2191: =cut
2192:
1.28 matthew 2193: #######################################################
2194: #######################################################
1.2 stredwic 2195:
1.28 matthew 2196: 1;
1.2 stredwic 2197:
1.1 stredwic 2198: __END__
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