1: # The LearningOnline Network with CAPA
2: # (Publication Handler
3: #
4: # $Id: lonstudentassessment.pm,v 1.12 2002/09/22 18:24:45 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: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
28: # (Navigate problems for statistical reports
29: # YEAR=2001
30: # 5/5,7/9,7/25/1,8/11,9/13,9/26,10/5,10/9,10/22,10/26 Behrouz Minaei
31: # 11/1,11/4,11/16,12/14,12/16,12/18,12/20,12/31 Behrouz Minaei
32: # YEAR=2002
33: # 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
34: # 5/12,5/14,5/15,5/19,5/26,7/16 Behrouz Minaei
35: #
36: ###
37:
38: package Apache::lonstudentassessment;
39:
40: use strict;
41: use Apache::lonhtmlcommon;
42: use Apache::loncoursedata;
43: use GDBM_File;
44:
45: #my $jr;
46:
47: sub BuildStudentAssessmentPage {
48: my ($cacheDB,$students,$courseID,$formName,$headings,$spacing,
49: $studentInformation,$r,$c)=@_;
50: # $jr = $r;
51: my %cache;
52: unless(tie(%cache,'GDBM_File',$cacheDB,&GDBM_READER(),0640)) {
53: $r->print('<html><body>Unable to tie database.</body></html>');
54: return;
55: }
56:
57: # Remove students who don't have the proper section.
58: my @sectionsSelected = split(':',$cache{'sectionsSelected'});
59: for(my $studentIndex=((scalar @$students)-1); $studentIndex>=0;
60: $studentIndex--) {
61: my $value = $cache{$students->[$studentIndex].':section'};
62: my $found = 0;
63: foreach (@sectionsSelected) {
64: if($_ eq 'none') {
65: if($value eq '' || !defined($value) || $value eq ' ') {
66: $found = 1;
67: last;
68: }
69: } else {
70: if($value eq $_) {
71: $found = 1;
72: last;
73: }
74: }
75: }
76: if($found == 0) {
77: splice(@$students, $studentIndex, 1);
78: }
79: }
80: my ($infoHeadings, $infoKeys, $sequenceHeadings, $sequenceKeys,
81: $doNotShow) =
82: &ShouldShowColumns(\%cache, $headings, $studentInformation);
83:
84: my $selectedName = &FindSelectedStudent(\%cache,
85: $cache{'StudentAssessmentStudent'},
86: $students);
87: $r->print(&CreateInterface(\%cache, $selectedName, $students, $formName,
88: $doNotShow));
89: $r->rflush();
90:
91: my $Str = '';
92: if($selectedName eq 'No Student Selected') {
93: $Str .= '<h3><font color=blue>WARNING: ';
94: $Str .= 'Please select a student</font></h3>';
95: $r->print($Str);
96: return;
97: }
98:
99: $r->print(&CreateTableHeadings(\%cache, $spacing, $infoKeys, $infoHeadings,
100: $sequenceKeys, $sequenceHeadings));
101: untie(%cache);
102: if($c->aborted()) { return $Str; }
103:
104: my $selected=0;
105: $r->print('<pre>'."\n");
106: foreach (@$students) {
107: if($c->aborted()) { return $Str; }
108: next if ($_ ne $selectedName &&
109: $selectedName ne 'All Students');
110: $selected = 1;
111:
112: my @who = ($_);
113: next if(&Apache::loncoursedata::DownloadStudentCourseData(\@who, 'true',
114: $cacheDB, 'true',
115: 'false', $courseID,
116: $r, $c) ne 'OK');
117: next if($c->aborted());
118:
119: if(tie(%cache,'GDBM_File',$cacheDB,&GDBM_READER(),0640)) {
120: my @before=();
121: my @after=();
122: my @updateColumn=();
123: my $foundUpdate = 0;
124: foreach(@$infoKeys) {
125: if(/updateTime/) {
126: $foundUpdate=1;
127: push(@updateColumn, $_);
128: next;
129: }
130: if($foundUpdate) {
131: push(@after, $_);
132: } else {
133: push(@before, $_);
134: }
135: }
136: my $displayString = 'DISPLAYDATA'.$spacing;
137: $r->print(&Apache::lonhtmlcommon::FormatStudentInformation(
138: \%cache, $_,
139: \@before,
140: $displayString,
141: 'preformatted'));
142:
143: if($foundUpdate) {
144: $displayString = '';
145: $displayString .= '<a href="/adm/statistics?reportSelected=';
146: $displayString .= &Apache::lonnet::escape('Student Assessment');
147: $displayString .= '&download='.$_.'">';
148: $displayString .= 'DISPLAYDATA</a>'.$spacing;
149: $r->print(&Apache::lonhtmlcommon::FormatStudentInformation(
150: \%cache, $_,
151: \@updateColumn,
152: $displayString,
153: 'preformatted'));
154: }
155:
156: $displayString = 'DISPLAYDATA'.$spacing;
157: $r->print(&Apache::lonhtmlcommon::FormatStudentInformation(
158: \%cache, $_,
159: \@after,
160: $displayString,
161: 'preformatted'));
162: $r->print(&StudentReport(\%cache, $_, $spacing, $sequenceKeys));
163: $r->print("\n");
164: $r->rflush();
165: untie(%cache);
166: }
167: }
168: $r->print('</pre>'."\n");
169: if($selected == 0) {
170: $Str .= '<h3><font color=blue>WARNING: ';
171: $Str .= 'Please select a student</font></h3>';
172: $r->print($Str);
173: }
174:
175: return;
176: }
177:
178: #---- Student Assessment Web Page --------------------------------------------
179:
180: sub CreateInterface {
181: my($cache,$selectedName,$students,$formName,$doNotShow)=@_;
182:
183: my $Str = '';
184: $Str .= &CreateLegend();
185: $Str .= '<table><tr><td>'."\n";
186: $Str .= '<input type="submit" name="PreviousStudent" ';
187: $Str .= 'value="Previous Student" />'."\n";
188: $Str .= '   '."\n";
189: $Str .= &Apache::lonhtmlcommon::StudentOptions($cache, $students,
190: $selectedName,
191: 'StudentAssessment',
192: $formName);
193: $Str .= "\n".'   '."\n";
194: $Str .= '<input type="submit" name="NextStudent" ';
195: $Str .= 'value="Next Student" />'."\n";
196: $Str .= '</td></tr></table>'."\n";
197: $Str .= '<table cellspacing="5"><tr>'."\n";
198: $Str .= '<td align="center"><b>Select Sections</b>'."\n";
199: $Str .= '</td>'."\n";
200: $Str .= '<td align="center"><b>Select column to view:</b></td>'."\n";
201: $Str .= '<td></td></tr>'."\n";
202:
203: $Str .= '<tr><td align="center">'."\n";
204: my @sections = split(':',$cache->{'sectionList'});
205: my @selectedSections = split(':',$cache->{'sectionsSelected'});
206: $Str .= &Apache::lonhtmlcommon::MultipleSectionSelect(\@sections,
207: \@selectedSections,
208: 'Statistics');
209: $Str .= '</td><td align="center">';
210: $Str .= &CreateColumnSelectionBox($doNotShow);
211: $Str .= '</td><td>'."\n";
212: $Str .= '<input type="submit" name="DefaultColumns" ';
213: $Str .= 'value="Default Column Display" />'."\n";
214: $Str .= '</td></tr></table>'."\n";
215:
216: return $Str;
217: }
218:
219: sub CreateTableHeadings {
220: my($cache,$spacing,$infoKeys,$infoHeadings,$sequenceKeys,
221: $sequenceHeadings)=@_;
222:
223: my $Str = '';
224: $Str .= '<table border="0" cellpadding="0" cellspacing="0">'."\n";
225:
226: $Str .= '<tr>'."\n";
227: $Str .= &CreateColumnSelectors($infoHeadings, $sequenceHeadings,
228: $sequenceKeys);
229: $Str .= '<td></td></tr>'."\n";
230:
231: $Str .= '<tr>'."\n";
232: my $displayString = '<td align="left"><pre><a href="/adm/statistics?';
233: $displayString .= 'sort=LINKDATA">DISPLAYDATA</a>FORMATTING';
234: $displayString .= $spacing.'</pre></td>'."\n";
235: $Str .= &Apache::lonhtmlcommon::CreateHeadings($cache,
236: $infoKeys,
237: $infoHeadings,
238: $displayString,
239: 'preformatted');
240:
241: $displayString = '<td align="left"><pre>DISPLAYDATAFORMATTING'.$spacing;
242: $displayString .= '</pre></td>'."\n";
243: $Str .= &Apache::lonhtmlcommon::CreateHeadings($cache,
244: $sequenceKeys,
245: $sequenceHeadings,
246: $displayString,
247: 'preformatted');
248:
249: $Str .= '<td><pre>Total Solved/Total Problems</pre></td>';
250: $Str .= '</tr></table>'."\n";
251:
252: return $Str;
253: }
254:
255: =pod
256:
257: =item &FormatStudentData()
258:
259: First, FormatStudentInformation is called and prefixes the course information.
260: This function produces a formatted string of the student's course information.
261: Each column of data represents all the problems for a given sequence. For
262: valid grade data, a link is created for that problem to a submission record
263: for that problem.
264:
265: =over 4
266:
267: Input: $name, $studentInformation, $ChartDB
268:
269: $name: The name and domain of the current student in name:domain format
270:
271: $studentInformation: A pointer to an array holding the names used to
272: remove data from the hash. They represent
273: the name of the data to be removed.
274:
275: $ChartDB: The name of the cached data database which will be tied to that
276: database.
277:
278: Output: $Str
279:
280: $Str: Formatted string that is an entire row of the chart. It is a
281: concatenation of student information and student course information.
282:
283: =back
284:
285: =cut
286:
287: sub StudentReport {
288: my ($cache,$name,$spacing,$showSequences)=@_;
289: my ($username,$domain)=split(':',$name);
290:
291: my $Str = '';
292: if(defined($cache->{$name.':error'})) {
293: return $Str;
294: }
295: if($cache->{$name.':error'} =~ /course/) {
296: $Str .= '<b><font color="blue">No course data for student </font>';
297: $Str .= '<font color="red">'.$username.'.</font></b><br>';
298: return $Str;
299: }
300:
301: my $hasVersion = 'false';
302: my $hasFinalData = 'false';
303: foreach my $sequence (@$showSequences) {
304: my $hasData = 'false';
305: my $characterCount=0;
306: foreach my $problemID (split(':', $cache->{$sequence.':problems'})) {
307: my $problem = $cache->{$problemID.':problem'};
308: # All grades (except for versionless parts) are displayed as links
309: # to their submission record. Loop through all the parts for the
310: # current problem in the correct order and prepare the output links
311: foreach(split(/\:/,$cache->{$sequence.':'.$problemID.
312: ':parts'})) {
313: if($cache->{$name.':'.$problemID.':NoVersion'} eq 'true' ||
314: $cache->{$name.':'.$problemID.':'.$_.':code'} eq ' ' ||
315: $cache->{$name.':'.$problemID.':'.$_.':code'} eq '') {
316: $Str .= ' ';
317: $characterCount++;
318: next;
319: }
320: $hasVersion = 'true';
321: $hasData = 'true';
322: $Str .= '<a href="/adm/grades?symb=';
323: $Str .= &Apache::lonnet::escape($problem);
324: $Str .= '&student='.$username.'&domain='.$domain;
325: $Str .= '&command=submission">';
326: my $code = $cache->{$name.':'.$problemID.':'.$_.':code'};
327: my $tries = $cache->{$name.':'.$problemID.':'.$_.':tries'};
328: if($code eq '*' && $tries < 10 && $tries ne '') {
329: $code = $tries;
330: }
331: $Str .= $code;
332: $Str .= '</a>';
333: $characterCount++;
334: }
335: }
336:
337: # Output the number of correct answers for the current sequence.
338: # This part takes up 6 character slots, but is formated right
339: # justified.
340: my $spacesNeeded=$cache->{$sequence.':columnWidth'}-$characterCount;
341: $spacesNeeded -= 3;
342: $Str .= (' 'x$spacesNeeded);
343:
344: my $outputProblemsCorrect = sprintf("%3d", $cache->{$name.':'.$sequence.
345: ':problemsCorrect'});
346: if($hasData eq 'true') {
347: $Str .= '<font color="#007700">'.$outputProblemsCorrect.'</font>';
348: $hasFinalData = 'true';
349: } else {
350: $Str .= '<font color="#007700"> </font>';
351: }
352: $Str .= $spacing;
353: }
354:
355: # Output the total correct problems over the total number of problems.
356: # I don't like this type of formatting, but it is a solution. Need
357: # a way to dynamically determine the space requirements.
358: my $outputProblemsSolved = sprintf("%4d", $cache->{$name.':problemsSolved'});
359: my $outputTotalProblems = sprintf("%4d", $cache->{$name.':totalProblems'});
360: if($hasFinalData eq 'true') {
361: $Str .= '<font color="#000088">'.$outputProblemsSolved.
362: ' / '.$outputTotalProblems.'</font>';
363: } else {
364: $Str .= '<font color="#000088"> </font>';
365: }
366:
367: if($hasVersion eq 'false') {
368: $Str = '<b><font color="blue">No course data.</font></b>';
369: }
370:
371: return $Str;
372: }
373:
374: =pod
375:
376: =item &CreateLegend()
377:
378: This function returns a formatted string containing the legend for the
379: chart. The legend describes the symbols used to represent grades for
380: problems.
381:
382: =cut
383:
384: sub CreateLegend {
385: my $Str = "<p><pre>".
386: "1..9 correct by student in 1..9 tries\n".
387: " * correct by student in more than 9 tries\n".
388: " + correct by override\n".
389: " - incorrect by override\n".
390: " . incorrect attempted\n".
391: " # ungraded attempted\n".
392: " not attempted\n".
393: " x excused".
394: "</pre><p>";
395: return $Str;
396: }
397:
398: =pod
399:
400: =item &CreateColumnSelectionBox()
401:
402: If there are columns not being displayed then this selection box is created
403: with a list of those columns. When selections are made and the page
404: refreshed, the columns will be removed from this box and the column is
405: put back in the chart. If there is no columns to select, no row is added
406: to the interface table.
407:
408: =over 4
409: Input: $CacheData, $headings
410:
411:
412: $CacheData: A pointer to a hash tied to the cached data
413:
414: $headings: An array of the names of the columns for the student information.
415: They are used for displaying which columns are missing.
416:
417: Output: $notThere
418:
419: $notThere: The string contains one row of a table. The first column has the
420: name of the selection box. The second contains the selection box
421: which has a size of four.
422:
423: =back
424:
425: =cut
426:
427: sub CreateColumnSelectionBox {
428: my ($doNotShow)=@_;
429:
430: my $notThere = '';
431: $notThere .= '<select name="ReselectColumns" size="4" ';
432: $notThere .= 'multiple="true">'."\n";
433:
434: for(my $index=0; $index<$doNotShow->{'count'}; $index++) {
435: my $name = $doNotShow->{$index.':name'};
436: $notThere .= '<option value="';
437: $notThere .= $doNotShow->{$index.':id'}.'">';
438: $notThere .= $name.'</option>'."\n";
439: }
440:
441: $notThere .= '</select>';
442:
443: return $notThere;
444: }
445:
446: =pod
447:
448: =item &CreateColumnSelectors()
449:
450: This function generates the checkboxes above the column headings. The
451: column will be removed if the checkbox is unchecked.
452:
453: =over 4
454:
455: Input: $CacheData, $headings
456:
457: $CacheData: A pointer to a hash tied to the cached data
458:
459: $headings: An array of the names of the columns for the student
460: information. They are used to know what are the student information columns
461:
462: Output: $present
463:
464: $present: The string contains the first row of a table. Each column contains
465: a checkbox which is left justified. Currently left justification is used
466: for consistency of location over the column in which it presides.
467:
468: =back
469:
470: =cut
471:
472: sub CreateColumnSelectors {
473: my ($infoHeadings, $sequenceHeadings, $sequenceKeys)=@_;
474:
475: my $present = '';
476: for(my $index=0; $index<(scalar @$infoHeadings); $index++) {
477: $present .= '<td align="left">';
478: $present .= '<input type="checkbox" checked="on" ';
479: $present .= 'name="HeadingColumn'.$infoHeadings->[$index].'" />';
480: $present .= '</td>'."\n";
481: }
482:
483: for(my $index=0; $index<(scalar @$sequenceHeadings); $index++) {
484: $present .= '<td align="left">';
485: $present .= '<input type="checkbox" checked="on" ';
486: $present .= 'name="SequenceColumn'.$sequenceKeys->[$index].'" />';
487: $present .= '</td>'."\n";
488: }
489:
490: return $present;
491: }
492:
493: #---- END Student Assessment Web Page ----------------------------------------
494:
495: #---- Student Assessment Worker Functions ------------------------------------
496:
497: sub FindSelectedStudent {
498: my($cache, $selectedName, $students)=@_;
499:
500: if($selectedName eq 'All Students' ||
501: $selectedName eq 'No Student Selected') {
502: return $selectedName;
503: }
504:
505: for(my $index=0; $index<(scalar @$students); $index++) {
506: my $fullname = $cache->{$students->[$index].':fullname'};
507: if($fullname eq $selectedName) {
508: if($cache->{'StudentAssessmentMove'} eq 'next') {
509: if($index == ((scalar @$students) - 1)) {
510: $selectedName = $students->[0];
511: return $selectedName;
512: } else {
513: $selectedName = $students->[$index+1];
514: return $selectedName;
515: }
516: } elsif($cache->{'StudentAssessmentMove'} eq 'previous') {
517: if($index == 0) {
518: $selectedName = $students->[-1];
519: return $selectedName;
520: } else {
521: $selectedName = $students->[$index-1];
522: return $selectedName;
523: }
524: } else {
525: $selectedName = $students->[$index];
526: return $selectedName;
527: }
528: last;
529: }
530: }
531:
532: return 'No Student Selected';
533: }
534:
535: =pod
536:
537: =item &ShouldShowColumn()
538:
539: Determine if a specified column should be shown on the chart.
540:
541: =over 4
542:
543: Input: $cache, $test
544:
545: $cache: A pointer to the hash tied to the cached data
546:
547: $test: The form name of the column (heading.$headingIndex) or
548: (sequence.$sequenceIndex)
549:
550: Output: 0 (false), 1 (true)
551:
552: =back
553:
554: =cut
555:
556: sub ShouldShowColumns {
557: my ($cache,$headings,$cacheKey)=@_;
558:
559: my @infoKeys=();
560: my @infoHeadings=();
561:
562: my @sequenceKeys=();
563: my @sequenceHeadings=();
564:
565: my %doNotShow;
566:
567: my $index;
568: my $count = 0;
569: my $check = '';
570: for($index=0; $index < scalar @$headings; $index++) {
571: $check = 'HeadingColumn'.$headings->[$index];
572: if($cache->{'HeadingsFound'} =~ /$check/) {
573: push(@infoHeadings, $headings->[$index]);
574: push(@infoKeys, $cacheKey->[$index]);
575: } else {
576: $doNotShow{$count.':name'} = $headings->[$index];
577: $doNotShow{$count.':id'} = 'HeadingColumn'.$headings->[$index];
578: $count++;
579: }
580: }
581:
582: foreach my $sequence (split(/\:/,$cache->{'orderedSequences'})) {
583: $check = 'SequenceColumn'.$sequence;
584: if($cache->{'SequencesFound'} eq 'All Sequences' ||
585: $cache->{'SequencesFound'} =~ /$check/) {
586: push(@sequenceHeadings, $cache->{$sequence.':title'});
587: push(@sequenceKeys, $sequence);
588: } else {
589: $doNotShow{$count.':name'} = $cache->{$sequence.':title'};
590: $doNotShow{$count.':id'} = 'SequenceColumn'.$sequence;
591: $count++;
592: }
593: }
594:
595: $doNotShow{'count'} = $count;
596:
597: return (\@infoHeadings, \@infoKeys, \@sequenceHeadings,
598: \@sequenceKeys, \%doNotShow);
599: }
600:
601: #---- END Student Assessment Worker Functions --------------------------------
602:
603: 1;
604: __END__
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