1: # The LearningOnline Network with CAPA
2: # (Publication Handler
3: #
4: # $Id: lonstudentassessment.pm,v 1.14 2002/10/21 00:15:13 minaeibi Exp $
5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: # LON-CAPA is free software; you can redistribute it and/or modify
10: # it under the terms of the GNU General Public License as published by
11: # the Free Software Foundation; either version 2 of the License, or
12: # (at your option) any later version.
13: #
14: # LON-CAPA is distributed in the hope that it will be useful,
15: # but WITHOUT ANY WARRANTY; without even the implied warranty of
16: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17: # GNU General Public License for more details.
18: #
19: # You should have received a copy of the GNU General Public License
20: # along with LON-CAPA; if not, write to the Free Software
21: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22: #
23: # /home/httpd/html/adm/gpl.txt
24: #
25: # http://www.lon-capa.org/
26: #
27: # (Navigate problems for statistical reports
28: # YEAR=2001
29: # 5/5,7/9,7/25/1,8/11,9/13,9/26,10/5,10/9,10/22,10/26 Behrouz Minaei
30: # 11/1,11/4,11/16,12/14,12/16,12/18,12/20,12/31 Behrouz Minaei
31: # YEAR=2002
32: # 1/22,2/1,2/6,2/25,3/2,3/6,3/17,3/21,3/22,3/26,4/7,5/6 Behrouz Minaei
33: # 5/12,5/14,5/15,5/19,5/26,7/16 Behrouz Minaei
34: #
35: ###
36:
37: package Apache::lonstudentassessment;
38:
39: use strict;
40: use Apache::lonhtmlcommon;
41: use Apache::loncoursedata;
42: use GDBM_File;
43:
44: #my $jr;
45:
46: sub BuildStudentAssessmentPage {
47: my ($cacheDB,$students,$courseID,$formName,$headings,$spacing,
48: $studentInformation,$r,$c)=@_;
49: # $jr = $r;
50: my %cache;
51: unless(tie(%cache,'GDBM_File',$cacheDB,&GDBM_READER(),0640)) {
52: $r->print('<html><body>Unable to tie database.</body></html>');
53: return;
54: }
55:
56: # Remove students who don't have the proper section.
57: my @sectionsSelected = split(':',$cache{'sectionsSelected'});
58: for(my $studentIndex=((scalar @$students)-1); $studentIndex>=0;
59: $studentIndex--) {
60: my $value = $cache{$students->[$studentIndex].':section'};
61: my $found = 0;
62: foreach (@sectionsSelected) {
63: if($_ eq 'none') {
64: if($value eq '' || !defined($value) || $value eq ' ') {
65: $found = 1;
66: last;
67: }
68: } else {
69: if($value eq $_) {
70: $found = 1;
71: last;
72: }
73: }
74: }
75: if($found == 0) {
76: splice(@$students, $studentIndex, 1);
77: }
78: }
79: my ($infoHeadings, $infoKeys, $sequenceHeadings, $sequenceKeys,
80: $doNotShow) =
81: &ShouldShowColumns(\%cache, $headings, $studentInformation);
82:
83: my $selectedName = &FindSelectedStudent(\%cache,
84: $cache{'StudentAssessmentStudent'},
85: $students);
86: $r->print(&CreateInterface(\%cache, $selectedName, $students, $formName,
87: $doNotShow));
88: $r->rflush();
89:
90: my $Str = '';
91: if($selectedName eq 'No Student Selected') {
92: $Str .= '<h3><font color=blue>WARNING: ';
93: $Str .= 'Please select a student</font></h3>';
94: $r->print($Str);
95: return;
96: }
97:
98: $r->print(&CreateTableHeadings(\%cache, $spacing, $infoKeys, $infoHeadings,
99: $sequenceKeys, $sequenceHeadings));
100: untie(%cache);
101: if($c->aborted()) { return $Str; }
102:
103: my $selected=0;
104: $r->print('<pre>'."\n");
105: foreach (@$students) {
106: if($c->aborted()) { return $Str; }
107: next if ($_ ne $selectedName &&
108: $selectedName ne 'All Students');
109: $selected = 1;
110:
111: my @who = ($_);
112: next if(&Apache::loncoursedata::DownloadStudentCourseData(\@who, 'true',
113: $cacheDB, 'true',
114: 'false', $courseID,
115: $r, $c) ne 'OK');
116: next if($c->aborted());
117:
118: if(tie(%cache,'GDBM_File',$cacheDB,&GDBM_READER(),0640)) {
119: my @before=();
120: my @after=();
121: my @updateColumn=();
122: my $foundUpdate = 0;
123: foreach(@$infoKeys) {
124: if(/updateTime/) {
125: $foundUpdate=1;
126: push(@updateColumn, $_);
127: next;
128: }
129: if($foundUpdate) {
130: push(@after, $_);
131: } else {
132: push(@before, $_);
133: }
134: }
135: my $displayString = 'DISPLAYDATA'.$spacing;
136: $r->print(&Apache::lonhtmlcommon::FormatStudentInformation(
137: \%cache, $_,
138: \@before,
139: $displayString,
140: 'preformatted'));
141:
142: if($foundUpdate) {
143: $displayString = '';
144: $displayString .= '<a href="/adm/statistics?reportSelected=';
145: $displayString .= &Apache::lonnet::escape('Student Assessment');
146: $displayString .= '&download='.$_.'">';
147: $displayString .= 'DISPLAYDATA</a>'.$spacing;
148: $r->print(&Apache::lonhtmlcommon::FormatStudentInformation(
149: \%cache, $_,
150: \@updateColumn,
151: $displayString,
152: 'preformatted'));
153: }
154:
155: $displayString = 'DISPLAYDATA'.$spacing;
156: $r->print(&Apache::lonhtmlcommon::FormatStudentInformation(
157: \%cache, $_,
158: \@after,
159: $displayString,
160: 'preformatted'));
161: $r->print(&StudentReport(\%cache, $_, $spacing, $sequenceKeys));
162: $r->print("\n");
163: $r->rflush();
164: untie(%cache);
165: }
166: }
167: $r->print('</pre>'."\n");
168: if($selected == 0) {
169: $Str .= '<h3><font color=blue>WARNING: ';
170: $Str .= 'Please select a student</font></h3>';
171: $r->print($Str);
172: }
173:
174: return;
175: }
176:
177: #---- Student Assessment Web Page --------------------------------------------
178:
179: sub CreateInterface {
180: my($cache,$selectedName,$students,$formName,$doNotShow)=@_;
181:
182: my $Str = '';
183: $Str .= &CreateLegend();
184: $Str .= '<table><tr><td>'."\n";
185: $Str .= '<input type="submit" name="PreviousStudent" ';
186: $Str .= 'value="Previous Student" />'."\n";
187: $Str .= '   '."\n";
188: $Str .= &Apache::lonhtmlcommon::StudentOptions($cache, $students,
189: $selectedName,
190: 'StudentAssessment',
191: $formName);
192: $Str .= "\n".'   '."\n";
193: $Str .= '<input type="submit" name="NextStudent" ';
194: $Str .= 'value="Next Student" />'."\n";
195: $Str .= '</td></tr></table>'."\n";
196: $Str .= '<table cellspacing="5"><tr>'."\n";
197: $Str .= '<td align="center"><b>Select Sections</b>'."\n";
198: $Str .= '</td>'."\n";
199: $Str .= '<td align="center"><b>Select column to view:</b></td>'."\n";
200: $Str .= '<td></td></tr>'."\n";
201:
202: $Str .= '<tr><td align="center">'."\n";
203: my @sections = split(':',$cache->{'sectionList'});
204: my @selectedSections = split(':',$cache->{'sectionsSelected'});
205: $Str .= &Apache::lonhtmlcommon::MultipleSectionSelect(\@sections,
206: \@selectedSections,
207: 'Statistics');
208: $Str .= '</td><td align="center">';
209: $Str .= &CreateColumnSelectionBox($doNotShow);
210: $Str .= '</td><td>'."\n";
211: $Str .= '<input type="submit" name="DefaultColumns" ';
212: $Str .= 'value="Default Column Display" />'."\n";
213: $Str .= '</td></tr></table>'."\n";
214:
215: return $Str;
216: }
217:
218: sub CreateTableHeadings {
219: my($cache,$spacing,$infoKeys,$infoHeadings,$sequenceKeys,
220: $sequenceHeadings)=@_;
221:
222: my $Str = '';
223: $Str .= '<table border="0" cellpadding="0" cellspacing="0">'."\n";
224:
225: $Str .= '<tr>'."\n";
226: $Str .= &CreateColumnSelectors($infoHeadings, $sequenceHeadings,
227: $sequenceKeys);
228: $Str .= '<td></td></tr>'."\n";
229:
230: $Str .= '<tr>'."\n";
231: my $displayString = '<td align="left"><pre><a href="/adm/statistics?';
232: $displayString .= 'sort=LINKDATA">DISPLAYDATA</a>FORMATTING';
233: $displayString .= $spacing.'</pre></td>'."\n";
234: $Str .= &Apache::lonhtmlcommon::CreateHeadings($cache,
235: $infoKeys,
236: $infoHeadings,
237: $displayString,
238: 'preformatted');
239:
240: $displayString = '<td align="left"><pre>DISPLAYDATAFORMATTING'.$spacing;
241: $displayString .= '</pre></td>'."\n";
242: $Str .= &Apache::lonhtmlcommon::CreateHeadings($cache,
243: $sequenceKeys,
244: $sequenceHeadings,
245: $displayString,
246: 'preformatted');
247:
248: $Str .= '<td><pre>Total Solved/Total Problems</pre></td>';
249: $Str .= '</tr></table>'."\n";
250:
251: return $Str;
252: }
253:
254: =pod
255:
256: =item &FormatStudentData()
257:
258: First, FormatStudentInformation is called and prefixes the course information.
259: This function produces a formatted string of the student's course information.
260: Each column of data represents all the problems for a given sequence. For
261: valid grade data, a link is created for that problem to a submission record
262: for that problem.
263:
264: =over 4
265:
266: Input: $name, $studentInformation, $ChartDB
267:
268: $name: The name and domain of the current student in name:domain format
269:
270: $studentInformation: A pointer to an array holding the names used to
271: remove data from the hash. They represent
272: the name of the data to be removed.
273:
274: $ChartDB: The name of the cached data database which will be tied to that
275: database.
276:
277: Output: $Str
278:
279: $Str: Formatted string that is an entire row of the chart. It is a
280: concatenation of student information and student course information.
281:
282: =back
283:
284: =cut
285:
286: sub StudentReport {
287: my ($cache,$name,$spacing,$showSequences)=@_;
288: my ($username,$domain)=split(':',$name);
289:
290: my $Str = '';
291: if(defined($cache->{$name.':error'})) {
292: return $Str;
293: }
294: if($cache->{$name.':error'} =~ /course/) {
295: $Str .= '<b><font color="blue">No course data for student </font>';
296: $Str .= '<font color="red">'.$username.'.</font></b><br>';
297: return $Str;
298: }
299:
300: my $hasVersion = 'false';
301: my $hasFinalData = 'false';
302: foreach my $sequence (@$showSequences) {
303: my $hasData = 'false';
304: my $characterCount=0;
305: foreach my $problemID (split(':', $cache->{$sequence.':problems'})) {
306: my $problem = $cache->{$problemID.':problem'};
307: # All grades (except for versionless parts) are displayed as links
308: # to their submission record. Loop through all the parts for the
309: # current problem in the correct order and prepare the output links
310: foreach(split(/\:/,$cache->{$sequence.':'.$problemID.
311: ':parts'})) {
312: if($cache->{$name.':'.$problemID.':NoVersion'} eq 'true' ||
313: $cache->{$name.':'.$problemID.':'.$_.':code'} eq ' ' ||
314: $cache->{$name.':'.$problemID.':'.$_.':code'} eq '') {
315: $Str .= ' ';
316: $characterCount++;
317: next;
318: }
319: $hasVersion = 'true';
320: $hasData = 'true';
321: $Str .= '<a href="/adm/grades?symb=';
322: $Str .= &Apache::lonnet::escape($problem);
323: $Str .= '&student='.$username.'&domain='.$domain;
324: $Str .= '&command=submission">';
325: my $code = $cache->{$name.':'.$problemID.':'.$_.':code'};
326: my $tries = $cache->{$name.':'.$problemID.':'.$_.':tries'};
327: if($code eq '*' && $tries < 10 && $tries ne '') {
328: $code = $tries;
329: }
330: $Str .= $code;
331: $Str .= '</a>';
332: $characterCount++;
333: }
334: }
335:
336: # Output the number of correct answers for the current sequence.
337: # This part takes up 6 character slots, but is formated right
338: # justified.
339: my $spacesNeeded=$cache->{$sequence.':columnWidth'}-$characterCount;
340: $spacesNeeded -= 3;
341: $Str .= (' 'x$spacesNeeded);
342:
343: my $outputProblemsCorrect = sprintf("%3d", $cache->{$name.':'.$sequence.
344: ':problemsCorrect'});
345:
346: # my $outputProblemsCorrect = sprintf("%2d/%2d ", $cache->{$name.':'.$sequence.
347: # ':problemsCorrect'},
348: # $characterCount);
349: if($hasData eq 'true') {
350: $Str .= '<font color="#007700">'.$outputProblemsCorrect.'</font>';
351: $hasFinalData = 'true';
352: } else {
353: $Str .= '<font color="#007700"> </font>';
354: }
355: $Str .= $spacing;
356: }
357:
358: # Output the total correct problems over the total number of problems.
359: # I don't like this type of formatting, but it is a solution. Need
360: # a way to dynamically determine the space requirements.
361: my $outputProblemsSolved = sprintf("%4d", $cache->{$name.':problemsSolved'});
362: my $outputTotalProblems = sprintf("%4d", $cache->{$name.':totalProblems'});
363: if($hasFinalData eq 'true') {
364: $Str .= '<font color="#000088">'.$outputProblemsSolved.
365: ' / '.$outputTotalProblems.'</font>';
366: } else {
367: $Str .= '<font color="#000088"> </font>';
368: }
369:
370: if($hasVersion eq 'false') {
371: $Str = '<b><font color="blue">No course data.</font></b>';
372: }
373:
374: return $Str;
375: }
376:
377: =pod
378:
379: =item &CreateLegend()
380:
381: This function returns a formatted string containing the legend for the
382: chart. The legend describes the symbols used to represent grades for
383: problems.
384:
385: =cut
386:
387: sub CreateLegend {
388: my $Str = "<p><pre>".
389: " 1 correct by student in 1 try\n".
390: " 7 correct by student in 7 tries\n".
391: " * correct by student in more than 9 tries\n".
392: " + correct by override\n".
393: " - incorrect by override\n".
394: " . incorrect attempted\n".
395: " # ungraded attempted\n".
396: " not attempted (blank field)\n".
397: " x excused".
398: "</pre><p>";
399: return $Str;
400: }
401:
402: =pod
403:
404: =item &CreateColumnSelectionBox()
405:
406: If there are columns not being displayed then this selection box is created
407: with a list of those columns. When selections are made and the page
408: refreshed, the columns will be removed from this box and the column is
409: put back in the chart. If there is no columns to select, no row is added
410: to the interface table.
411:
412: =over 4
413: Input: $CacheData, $headings
414:
415:
416: $CacheData: A pointer to a hash tied to the cached data
417:
418: $headings: An array of the names of the columns for the student information.
419: They are used for displaying which columns are missing.
420:
421: Output: $notThere
422:
423: $notThere: The string contains one row of a table. The first column has the
424: name of the selection box. The second contains the selection box
425: which has a size of four.
426:
427: =back
428:
429: =cut
430:
431: sub CreateColumnSelectionBox {
432: my ($doNotShow)=@_;
433:
434: my $notThere = '';
435: $notThere .= '<select name="ReselectColumns" size="4" ';
436: $notThere .= 'multiple="true">'."\n";
437:
438: for(my $index=0; $index<$doNotShow->{'count'}; $index++) {
439: my $name = $doNotShow->{$index.':name'};
440: $notThere .= '<option value="';
441: $notThere .= $doNotShow->{$index.':id'}.'">';
442: $notThere .= $name.'</option>'."\n";
443: }
444:
445: $notThere .= '</select>';
446:
447: return $notThere;
448: }
449:
450: =pod
451:
452: =item &CreateColumnSelectors()
453:
454: This function generates the checkboxes above the column headings. The
455: column will be removed if the checkbox is unchecked.
456:
457: =over 4
458:
459: Input: $CacheData, $headings
460:
461: $CacheData: A pointer to a hash tied to the cached data
462:
463: $headings: An array of the names of the columns for the student
464: information. They are used to know what are the student information columns
465:
466: Output: $present
467:
468: $present: The string contains the first row of a table. Each column contains
469: a checkbox which is left justified. Currently left justification is used
470: for consistency of location over the column in which it presides.
471:
472: =back
473:
474: =cut
475:
476: sub CreateColumnSelectors {
477: my ($infoHeadings, $sequenceHeadings, $sequenceKeys)=@_;
478:
479: my $present = '';
480: for(my $index=0; $index<(scalar @$infoHeadings); $index++) {
481: $present .= '<td align="left">';
482: $present .= '<input type="checkbox" checked="on" ';
483: $present .= 'name="HeadingColumn'.$infoHeadings->[$index].'" />';
484: $present .= '</td>'."\n";
485: }
486:
487: for(my $index=0; $index<(scalar @$sequenceHeadings); $index++) {
488: $present .= '<td align="left">';
489: $present .= '<input type="checkbox" checked="on" ';
490: $present .= 'name="SequenceColumn'.$sequenceKeys->[$index].'" />';
491: $present .= '</td>'."\n";
492: }
493:
494: return $present;
495: }
496:
497: #---- END Student Assessment Web Page ----------------------------------------
498:
499: #---- Student Assessment Worker Functions ------------------------------------
500:
501: sub FindSelectedStudent {
502: my($cache, $selectedName, $students)=@_;
503:
504: if($selectedName eq 'All Students' ||
505: $selectedName eq 'No Student Selected') {
506: return $selectedName;
507: }
508:
509: for(my $index=0; $index<(scalar @$students); $index++) {
510: my $fullname = $cache->{$students->[$index].':fullname'};
511: if($fullname eq $selectedName) {
512: if($cache->{'StudentAssessmentMove'} eq 'next') {
513: if($index == ((scalar @$students) - 1)) {
514: $selectedName = $students->[0];
515: return $selectedName;
516: } else {
517: $selectedName = $students->[$index+1];
518: return $selectedName;
519: }
520: } elsif($cache->{'StudentAssessmentMove'} eq 'previous') {
521: if($index == 0) {
522: $selectedName = $students->[-1];
523: return $selectedName;
524: } else {
525: $selectedName = $students->[$index-1];
526: return $selectedName;
527: }
528: } else {
529: $selectedName = $students->[$index];
530: return $selectedName;
531: }
532: last;
533: }
534: }
535:
536: return 'No Student Selected';
537: }
538:
539: =pod
540:
541: =item &ShouldShowColumn()
542:
543: Determine if a specified column should be shown on the chart.
544:
545: =over 4
546:
547: Input: $cache, $test
548:
549: $cache: A pointer to the hash tied to the cached data
550:
551: $test: The form name of the column (heading.$headingIndex) or
552: (sequence.$sequenceIndex)
553:
554: Output: 0 (false), 1 (true)
555:
556: =back
557:
558: =cut
559:
560: sub ShouldShowColumns {
561: my ($cache,$headings,$cacheKey)=@_;
562:
563: my @infoKeys=();
564: my @infoHeadings=();
565:
566: my @sequenceKeys=();
567: my @sequenceHeadings=();
568:
569: my %doNotShow;
570:
571: my $index;
572: my $count = 0;
573: my $check = '';
574: for($index=0; $index < scalar @$headings; $index++) {
575: $check = 'HeadingColumn'.$headings->[$index];
576: if($cache->{'HeadingsFound'} =~ /$check/) {
577: push(@infoHeadings, $headings->[$index]);
578: push(@infoKeys, $cacheKey->[$index]);
579: } else {
580: $doNotShow{$count.':name'} = $headings->[$index];
581: $doNotShow{$count.':id'} = 'HeadingColumn'.$headings->[$index];
582: $count++;
583: }
584: }
585:
586: foreach my $sequence (split(/\:/,$cache->{'orderedSequences'})) {
587: $check = 'SequenceColumn'.$sequence;
588: if($cache->{'SequencesFound'} eq 'All Sequences' ||
589: $cache->{'SequencesFound'} =~ /$check/) {
590: push(@sequenceHeadings, $cache->{$sequence.':title'});
591: push(@sequenceKeys, $sequence);
592: } else {
593: $doNotShow{$count.':name'} = $cache->{$sequence.':title'};
594: $doNotShow{$count.':id'} = 'SequenceColumn'.$sequence;
595: $count++;
596: }
597: }
598:
599: $doNotShow{'count'} = $count;
600:
601: return (\@infoHeadings, \@infoKeys, \@sequenceHeadings,
602: \@sequenceKeys, \%doNotShow);
603: }
604:
605: #---- END Student Assessment Worker Functions --------------------------------
606:
607: 1;
608: __END__
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