Annotation of loncom/interface/statistics/lonstudentassessment.pm, revision 1.26
1.1 stredwic 1: # The LearningOnline Network with CAPA
2: # (Publication Handler
3: #
1.26 ! minaeibi 4: # $Id: lonstudentassessment.pm,v 1.25 2003/01/09 15:59:17 matthew Exp $
1.1 stredwic 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
1.23 minaeibi 33: # 5/12,5/14,5/15,5/19,5/26,7/16,12/24 Behrouz Minaei
1.1 stredwic 34: #
35: ###
36:
1.21 minaeibi 37: package Apache::lonstudentassessment;
1.1 stredwic 38:
39: use strict;
40: use Apache::lonhtmlcommon;
41: use Apache::loncoursedata;
42: use GDBM_File;
43:
1.4 stredwic 44: #my $jr;
45:
1.1 stredwic 46: sub BuildStudentAssessmentPage {
1.2 stredwic 47: my ($cacheDB,$students,$courseID,$formName,$headings,$spacing,
48: $studentInformation,$r,$c)=@_;
1.4 stredwic 49: # $jr = $r;
1.1 stredwic 50: my %cache;
1.6 stredwic 51: unless(tie(%cache,'GDBM_File',$cacheDB,&GDBM_READER(),0640)) {
1.11 stredwic 52: $r->print('<html><body>Unable to tie database.</body></html>');
1.2 stredwic 53: return;
1.1 stredwic 54: }
1.3 stredwic 55:
56: # Remove students who don't have the proper section.
57: my @sectionsSelected = split(':',$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, $studentIndex, 1);
77: }
78: }
1.4 stredwic 79: my ($infoHeadings, $infoKeys, $sequenceHeadings, $sequenceKeys,
1.21 minaeibi 80: $doNotShow) =
1.4 stredwic 81: &ShouldShowColumns(\%cache, $headings, $studentInformation);
1.3 stredwic 82:
1.21 minaeibi 83: my $selectedName = &FindSelectedStudent(\%cache,
1.2 stredwic 84: $cache{'StudentAssessmentStudent'},
85: $students);
1.4 stredwic 86: $r->print(&CreateInterface(\%cache, $selectedName, $students, $formName,
87: $doNotShow));
1.7 stredwic 88: $r->rflush();
1.1 stredwic 89:
1.4 stredwic 90: my $Str = '';
1.1 stredwic 91: if($selectedName eq 'No Student Selected') {
1.4 stredwic 92: $Str .= '<h3><font color=blue>WARNING: ';
93: $Str .= 'Please select a student</font></h3>';
94: $r->print($Str);
1.2 stredwic 95: return;
1.1 stredwic 96: }
97:
1.2 stredwic 98: $r->print(&CreateTableHeadings(\%cache, $spacing, $infoKeys, $infoHeadings,
99: $sequenceKeys, $sequenceHeadings));
100: untie(%cache);
1.6 stredwic 101: if($c->aborted()) { return $Str; }
1.2 stredwic 102:
1.1 stredwic 103: my $selected=0;
1.24 minaeibi 104: my $Count = 0;
1.2 stredwic 105: $r->print('<pre>'."\n");
1.1 stredwic 106: foreach (@$students) {
1.8 stredwic 107: if($c->aborted()) { return $Str; }
1.17 minaeibi 108: next if ($_ ne $selectedName &&
1.1 stredwic 109: $selectedName ne 'All Students');
110: $selected = 1;
1.2 stredwic 111:
1.8 stredwic 112: my @who = ($_);
1.17 minaeibi 113: next if(&Apache::loncoursedata::DownloadStudentCourseData(\@who, 'true',
114: $cacheDB, 'true',
1.8 stredwic 115: 'false', $courseID,
116: $r, $c) ne 'OK');
1.6 stredwic 117: next if($c->aborted());
1.2 stredwic 118:
1.6 stredwic 119: if(tie(%cache,'GDBM_File',$cacheDB,&GDBM_READER(),0640)) {
1.8 stredwic 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: }
1.24 minaeibi 136: $Count++;
137: my $out = '';
138: # $out .= sprintf("%3d", $Count);
139: if($Count % 2) {
140: $out .= '<bgcolor="#FFFFFF">';
141: } else {
1.26 ! minaeibi 142: $out .= '<bgcolor="#F0F0F0">';
1.24 minaeibi 143: }
144: my $displayString = $out.'DISPLAYDATA'.$spacing;
145: $r->print(&Apache::lonhtmlcommon::FormatStudentInformation(
1.2 stredwic 146: \%cache, $_,
1.8 stredwic 147: \@before,
148: $displayString,
149: 'preformatted'));
150:
151: if($foundUpdate) {
152: $displayString = '';
153: $displayString .= '<a href="/adm/statistics?reportSelected=';
154: $displayString .= &Apache::lonnet::escape('Student Assessment');
155: $displayString .= '&download='.$_.'">';
156: $displayString .= 'DISPLAYDATA</a>'.$spacing;
157: $r->print(&Apache::lonhtmlcommon::FormatStudentInformation(
158: \%cache, $_,
159: \@updateColumn,
160: $displayString,
161: 'preformatted'));
162: }
163:
164: $displayString = 'DISPLAYDATA'.$spacing;
165: $r->print(&Apache::lonhtmlcommon::FormatStudentInformation(
166: \%cache, $_,
167: \@after,
1.2 stredwic 168: $displayString,
169: 'preformatted'));
170: $r->print(&StudentReport(\%cache, $_, $spacing, $sequenceKeys));
171: $r->print("\n");
1.7 stredwic 172: $r->rflush();
1.1 stredwic 173: untie(%cache);
174: }
175: }
1.26 ! minaeibi 176: $r->print('</pre>'."\n");
1.1 stredwic 177: if($selected == 0) {
1.4 stredwic 178: $Str .= '<h3><font color=blue>WARNING: ';
1.26 ! minaeibi 179: $Str .= 'No Students enrolled OR Please select a student</font></h3>';
1.4 stredwic 180: $r->print($Str);
1.26 ! minaeibi 181: } else {
! 182: if(tie(%cache,'GDBM_File',$cacheDB,&GDBM_READER(),0640)) {
! 183: $r->print(&StudentAverageTotal(\%cache, $students, $sequenceKeys));
! 184: untie(%cache);
! 185: }
1.1 stredwic 186: }
1.2 stredwic 187: return;
188: }
189:
1.21 minaeibi 190:
191:
192:
1.2 stredwic 193: #---- Student Assessment Web Page --------------------------------------------
194:
195: sub CreateInterface {
1.4 stredwic 196: my($cache,$selectedName,$students,$formName,$doNotShow)=@_;
197:
198: my $Str = '';
199: $Str .= &CreateLegend();
200: $Str .= '<table><tr><td>'."\n";
201: $Str .= '<input type="submit" name="PreviousStudent" ';
202: $Str .= 'value="Previous Student" />'."\n";
203: $Str .= '   '."\n";
1.17 minaeibi 204: $Str .= &Apache::lonhtmlcommon::StudentOptions($cache, $students,
1.21 minaeibi 205: $selectedName,
206: 'StudentAssessment',
1.2 stredwic 207: $formName);
1.4 stredwic 208: $Str .= "\n".'   '."\n";
209: $Str .= '<input type="submit" name="NextStudent" ';
210: $Str .= 'value="Next Student" />'."\n";
211: $Str .= '</td></tr></table>'."\n";
212: $Str .= '<table cellspacing="5"><tr>'."\n";
213: $Str .= '<td align="center"><b>Select Sections</b>'."\n";
214: $Str .= '</td>'."\n";
215: $Str .= '<td align="center"><b>Select column to view:</b></td>'."\n";
216: $Str .= '<td></td></tr>'."\n";
1.3 stredwic 217:
1.4 stredwic 218: $Str .= '<tr><td align="center">'."\n";
1.3 stredwic 219: my @sections = split(':',$cache->{'sectionList'});
220: my @selectedSections = split(':',$cache->{'sectionsSelected'});
1.4 stredwic 221: $Str .= &Apache::lonhtmlcommon::MultipleSectionSelect(\@sections,
1.3 stredwic 222: \@selectedSections,
223: 'Statistics');
1.4 stredwic 224: $Str .= '</td><td align="center">';
225: $Str .= &CreateColumnSelectionBox($doNotShow);
226: $Str .= '</td><td>'."\n";
227: $Str .= '<input type="submit" name="DefaultColumns" ';
228: $Str .= 'value="Default Column Display" />'."\n";
1.18 matthew 229: $Str .= '</td><td>'."\n";
230: $Str .= '<input type="submit" name="displaymode" ';
231: if (! exists($ENV{'form.displaymode'}) ||
232: lc($ENV{'form.displaymode'}) eq 'display with links') {
233: $Str .= 'value="Display without links" />';
234: # Set the current value, in case it is undefined
1.21 minaeibi 235: $ENV{'form.displaymode'} = 'Display with links';
1.18 matthew 236: } else {
237: $Str .= 'value="Display with links" />';
238: }
239: $Str .= "\n";
1.4 stredwic 240: $Str .= '</td></tr></table>'."\n";
1.2 stredwic 241:
1.4 stredwic 242: return $Str;
1.1 stredwic 243: }
244:
1.2 stredwic 245: sub CreateTableHeadings {
246: my($cache,$spacing,$infoKeys,$infoHeadings,$sequenceKeys,
247: $sequenceHeadings)=@_;
248:
1.24 minaeibi 249: # my $Str = '     ';
1.2 stredwic 250: my $Str = '';
1.4 stredwic 251: $Str .= '<table border="0" cellpadding="0" cellspacing="0">'."\n";
252:
253: $Str .= '<tr>'."\n";
254: $Str .= &CreateColumnSelectors($infoHeadings, $sequenceHeadings,
255: $sequenceKeys);
256: $Str .= '<td></td></tr>'."\n";
1.2 stredwic 257:
1.4 stredwic 258: $Str .= '<tr>'."\n";
1.2 stredwic 259: my $displayString = '<td align="left"><pre><a href="/adm/statistics?';
260: $displayString .= 'sort=LINKDATA">DISPLAYDATA</a>FORMATTING';
261: $displayString .= $spacing.'</pre></td>'."\n";
1.17 minaeibi 262: $Str .= &Apache::lonhtmlcommon::CreateHeadings($cache,
1.2 stredwic 263: $infoKeys,
264: $infoHeadings,
265: $displayString,
266: 'preformatted');
267:
1.8 stredwic 268: $displayString = '<td align="left"><pre>DISPLAYDATAFORMATTING'.$spacing;
1.2 stredwic 269: $displayString .= '</pre></td>'."\n";
270: $Str .= &Apache::lonhtmlcommon::CreateHeadings($cache,
271: $sequenceKeys,
272: $sequenceHeadings,
273: $displayString,
274: 'preformatted');
275:
276: $Str .= '<td><pre>Total Solved/Total Problems</pre></td>';
277: $Str .= '</tr></table>'."\n";
278:
279: return $Str;
280: }
281:
282: =pod
283:
284: =item &FormatStudentData()
285:
286: First, FormatStudentInformation is called and prefixes the course information.
1.18 matthew 287: This function produces a formatted string of the student\'s course information.
1.2 stredwic 288: Each column of data represents all the problems for a given sequence. For
289: valid grade data, a link is created for that problem to a submission record
290: for that problem.
291:
292: =over 4
293:
294: Input: $name, $studentInformation, $ChartDB
295:
296: $name: The name and domain of the current student in name:domain format
297:
298: $studentInformation: A pointer to an array holding the names used to
299: remove data from the hash. They represent
300: the name of the data to be removed.
301:
302: $ChartDB: The name of the cached data database which will be tied to that
303: database.
304:
305: Output: $Str
306:
1.21 minaeibi 307: $Str: Formatted string that is an entire row of the chart. It is a
1.2 stredwic 308: concatenation of student information and student course information.
309:
310: =back
311:
312: =cut
1.1 stredwic 313:
314: sub StudentReport {
1.2 stredwic 315: my ($cache,$name,$spacing,$showSequences)=@_;
316: my ($username,$domain)=split(':',$name);
1.1 stredwic 317:
318: my $Str = '';
1.8 stredwic 319: if(defined($cache->{$name.':error'})) {
1.10 stredwic 320: return $Str;
1.8 stredwic 321: }
1.1 stredwic 322: if($cache->{$name.':error'} =~ /course/) {
323: $Str .= '<b><font color="blue">No course data for student </font>';
324: $Str .= '<font color="red">'.$username.'.</font></b><br>';
325: return $Str;
326: }
327:
1.10 stredwic 328: my $hasVersion = 'false';
329: my $hasFinalData = 'false';
1.2 stredwic 330: foreach my $sequence (@$showSequences) {
1.10 stredwic 331: my $hasData = 'false';
1.2 stredwic 332: my $characterCount=0;
1.1 stredwic 333: foreach my $problemID (split(':', $cache->{$sequence.':problems'})) {
334: my $problem = $cache->{$problemID.':problem'};
1.2 stredwic 335: # All grades (except for versionless parts) are displayed as links
336: # to their submission record. Loop through all the parts for the
337: # current problem in the correct order and prepare the output links
338: foreach(split(/\:/,$cache->{$sequence.':'.$problemID.
339: ':parts'})) {
1.9 stredwic 340: if($cache->{$name.':'.$problemID.':NoVersion'} eq 'true' ||
1.10 stredwic 341: $cache->{$name.':'.$problemID.':'.$_.':code'} eq ' ' ||
342: $cache->{$name.':'.$problemID.':'.$_.':code'} eq '') {
1.8 stredwic 343: $Str .= ' ';
1.10 stredwic 344: $characterCount++;
1.8 stredwic 345: next;
1.2 stredwic 346: }
1.10 stredwic 347: $hasVersion = 'true';
348: $hasData = 'true';
1.18 matthew 349: if (lc($ENV{'form.displaymode'}) ne 'display without links') {
350: $Str .= '<a href="/adm/grades?symb=';
351: $Str .= &Apache::lonnet::escape($problem);
352: $Str .= '&student='.$username.'&domain='.$domain;
1.21 minaeibi 353: $Str .= '&command=submission">';
1.18 matthew 354: }
1.8 stredwic 355: my $code = $cache->{$name.':'.$problemID.':'.$_.':code'};
356: my $tries = $cache->{$name.':'.$problemID.':'.$_.':tries'};
357: if($code eq '*' && $tries < 10 && $tries ne '') {
358: $code = $tries;
1.2 stredwic 359: }
1.8 stredwic 360: $Str .= $code;
1.18 matthew 361: if (lc($ENV{'form.displaymode'}) ne 'display without links') {
362: $Str .= '</a>';
363: }
1.10 stredwic 364: $characterCount++;
1.2 stredwic 365: }
366: }
367:
368: # Output the number of correct answers for the current sequence.
1.17 minaeibi 369: # This part takes up 6 character slots, but is formated right
370: # justified.
371: my $spacesNeeded=$cache->{$sequence.':columnWidth'}-$characterCount;
372: $spacesNeeded -= 3;
373: $Str .= (' 'x$spacesNeeded);
374:
375: # my $outputProblemsCorrect = sprintf("%3d", $cache->{$name.':'.$sequence.
376: # ':problemsCorrect'});
377:
378: my $outputProblemsCorrect = sprintf("%2d/%2d", $cache->{$name.':'.$sequence.
379: ':problemsCorrect'},
380: $characterCount);
381: if($hasData eq 'true') {
382: $Str .= '<font color="#007700">'.$outputProblemsCorrect.'</font>';
383: $hasFinalData = 'true';
384: } else {
385: $Str .= '<font color="#007700"> </font>';
386: }
387: $Str .= $spacing;
388: }
389:
390: # Output the total correct problems over the total number of problems.
391: # I don't like this type of formatting, but it is a solution. Need
392: # a way to dynamically determine the space requirements.
393: my $outputProblemsSolved = sprintf("%4d", $cache->{$name.':problemsSolved'});
394: my $outputTotalProblems = sprintf("%4d", $cache->{$name.':totalProblems'});
395: if($hasFinalData eq 'true') {
396: $Str .= '<font color="#000088">'.$outputProblemsSolved.
397: ' / '.$outputTotalProblems.'</font>';
398: } else {
399: $Str .= '<font color="#000088"> </font>';
400: }
401:
402: if($hasVersion eq 'false') {
403: $Str = '<b><font color="blue">No course data.</font></b>';
404: }
405:
406: return $Str;
407: }
408:
409:
410: sub StudentAverageTotal {
1.21 minaeibi 411: my ($cache, $students, $sequenceKeys)=@_;
1.23 minaeibi 412: my $Str = "\n<b>Summary Tables:</b>\n";
1.21 minaeibi 413: my %Correct = ();
414: my $ProblemsSolved = 0;
415: my $TotalProblems = 0;
416: my $StudentCount = 0;
417:
418: foreach my $name (@$students) {
419: $StudentCount++;
420: foreach my $sequence (@$sequenceKeys) {
1.23 minaeibi 421: $Correct{$sequence} +=
422: $cache->{$name.':'.$sequence.':problemsCorrect'};
1.17 minaeibi 423: }
1.21 minaeibi 424: $ProblemsSolved += $cache->{$name.':problemsSolved'};
425: $TotalProblems += $cache->{$name.':totalProblems'};
1.1 stredwic 426: }
1.25 matthew 427: if ($StudentCount) {
428: $ProblemsSolved /= $StudentCount;
429: $TotalProblems /= $StudentCount;
430: } else {
431: $ProblemsSolved = 0;
432: $TotalProblems = 0;
433: }
1.24 minaeibi 434: $Str .= '<table border=2 cellspacing="1">'."\n";
1.23 minaeibi 435: $Str .= '<tr><td><b>Students Count</b></td><td><b>'.
436: $StudentCount.'</b></td></tr>'."\n";
437: $Str .= '<tr><td><b>Total Problems</b></td><td><b>'.
438: $TotalProblems.'</b></td></tr>'."\n";
439: $Str .= '<tr><td><b>Average Correct</b></td><td><b>'.
440: $ProblemsSolved.'</b></td></tr>'."\n";
441: $Str .= '</table>'."\n";
442:
1.24 minaeibi 443: $Str .= '<table border=2 cellspacing="1">'."\n";
1.23 minaeibi 444: $Str .= '<tr><th>Title</th><th>Total Problems</th>'.
445: '<th>Average Correct</th></tr>'."\n";
446: foreach my $S(@$sequenceKeys) {
447: my $title=$cache->{$S.':title'};
448: #$Str .= $cache->{$S.':problems'};
1.24 minaeibi 449: #my @problems=split(':', $cache->{$S.':problems'});
1.23 minaeibi 450: #my $pCount=scalar @problems;
451: my $pCount=MaxSeqPr($cache,@$students[0],$S);
1.25 matthew 452: my $crr;
453: if ($StudentCount) {
454: $crr=sprintf( "%.2f", $Correct{$S}/$StudentCount );
455: } else {
456: $crr="0.00";
457: }
1.23 minaeibi 458: $Str .= '<tr><td>'.$title.
459: '</td><td align=center>'.$pCount.
460: '</td><td align=center>'.$crr.
461: '</td></tr>'."\n";
1.10 stredwic 462: }
1.1 stredwic 463:
1.23 minaeibi 464: $Str .= '</table>'."\n";
465:
1.1 stredwic 466: return $Str;
467: }
1.23 minaeibi 468:
469:
470:
471: sub MaxSeqPr {
472: my ($cache, $name, $sequence)=@_;
473: my $prCount=0;
474: foreach my $problemID (split(':', $cache->{$sequence.':problems'})) {
475: my $problem = $cache->{$problemID.':problem'};
476: foreach(split(/\:/,$cache->{$sequence.':'.$problemID.':parts'})) {
477: if($cache->{$name.':'.$problemID.':NoVersion'} eq 'true' ||
478: $cache->{$name.':'.$problemID.':'.$_.':code'} eq ' ' ||
479: $cache->{$name.':'.$problemID.':'.$_.':code'} eq '') {
480: $prCount++;
481: next;
482: }
483: $prCount++;
484: }
485: }
486: return $prCount;
487: }
488:
489:
1.1 stredwic 490:
1.17 minaeibi 491:
492:
1.2 stredwic 493: =pod
494:
495: =item &CreateLegend()
496:
497: This function returns a formatted string containing the legend for the
498: chart. The legend describes the symbols used to represent grades for
499: problems.
500:
501: =cut
502:
503: sub CreateLegend {
504: my $Str = "<p><pre>".
1.13 minaeibi 505: " 1 correct by student in 1 try\n".
506: " 7 correct by student in 7 tries\n".
1.12 minaeibi 507: " * correct by student in more than 9 tries\n".
1.20 minaeibi 508: " + correct by hand grading or override\n".
1.12 minaeibi 509: " - incorrect by override\n".
510: " . incorrect attempted\n".
511: " # ungraded attempted\n".
1.13 minaeibi 512: " not attempted (blank field)\n".
1.12 minaeibi 513: " x excused".
1.17 minaeibi 514: "</pre><p>";
1.2 stredwic 515: return $Str;
516: }
517:
518: =pod
519:
520: =item &CreateColumnSelectionBox()
521:
522: If there are columns not being displayed then this selection box is created
1.17 minaeibi 523: with a list of those columns. When selections are made and the page
1.2 stredwic 524: refreshed, the columns will be removed from this box and the column is
525: put back in the chart. If there is no columns to select, no row is added
526: to the interface table.
527:
528: =over 4
529: Input: $CacheData, $headings
530:
531:
532: $CacheData: A pointer to a hash tied to the cached data
533:
1.17 minaeibi 534: $headings: An array of the names of the columns for the student information.
1.2 stredwic 535: They are used for displaying which columns are missing.
536:
537: Output: $notThere
538:
1.17 minaeibi 539: $notThere: The string contains one row of a table. The first column has the
540: name of the selection box. The second contains the selection box
1.2 stredwic 541: which has a size of four.
542:
543: =back
544:
545: =cut
546:
547: sub CreateColumnSelectionBox {
1.4 stredwic 548: my ($doNotShow)=@_;
1.2 stredwic 549:
1.4 stredwic 550: my $notThere = '';
551: $notThere .= '<select name="ReselectColumns" size="4" ';
552: $notThere .= 'multiple="true">'."\n";
553:
554: for(my $index=0; $index<$doNotShow->{'count'}; $index++) {
555: my $name = $doNotShow->{$index.':name'};
556: $notThere .= '<option value="';
557: $notThere .= $doNotShow->{$index.':id'}.'">';
1.2 stredwic 558: $notThere .= $name.'</option>'."\n";
559: }
560:
1.4 stredwic 561: $notThere .= '</select>';
1.2 stredwic 562:
1.4 stredwic 563: return $notThere;
1.2 stredwic 564: }
565:
566: =pod
567:
568: =item &CreateColumnSelectors()
569:
1.17 minaeibi 570: This function generates the checkboxes above the column headings. The
1.2 stredwic 571: column will be removed if the checkbox is unchecked.
572:
573: =over 4
574:
575: Input: $CacheData, $headings
576:
577: $CacheData: A pointer to a hash tied to the cached data
578:
579: $headings: An array of the names of the columns for the student
580: information. They are used to know what are the student information columns
581:
582: Output: $present
583:
584: $present: The string contains the first row of a table. Each column contains
585: a checkbox which is left justified. Currently left justification is used
586: for consistency of location over the column in which it presides.
587:
588: =back
589:
590: =cut
591:
592: sub CreateColumnSelectors {
1.4 stredwic 593: my ($infoHeadings, $sequenceHeadings, $sequenceKeys)=@_;
1.2 stredwic 594:
1.4 stredwic 595: my $present = '';
596: for(my $index=0; $index<(scalar @$infoHeadings); $index++) {
1.2 stredwic 597: $present .= '<td align="left">';
598: $present .= '<input type="checkbox" checked="on" ';
1.4 stredwic 599: $present .= 'name="HeadingColumn'.$infoHeadings->[$index].'" />';
600: $present .= '</td>'."\n";
1.2 stredwic 601: }
602:
1.4 stredwic 603: for(my $index=0; $index<(scalar @$sequenceHeadings); $index++) {
1.2 stredwic 604: $present .= '<td align="left">';
605: $present .= '<input type="checkbox" checked="on" ';
1.4 stredwic 606: $present .= 'name="SequenceColumn'.$sequenceKeys->[$index].'" />';
607: $present .= '</td>'."\n";
1.2 stredwic 608: }
609:
1.4 stredwic 610: return $present;
1.2 stredwic 611: }
612:
1.1 stredwic 613: #---- END Student Assessment Web Page ----------------------------------------
1.2 stredwic 614:
615: #---- Student Assessment Worker Functions ------------------------------------
616:
617: sub FindSelectedStudent {
618: my($cache, $selectedName, $students)=@_;
1.3 stredwic 619:
1.17 minaeibi 620: if($selectedName eq 'All Students' ||
1.3 stredwic 621: $selectedName eq 'No Student Selected') {
622: return $selectedName;
623: }
624:
625: for(my $index=0; $index<(scalar @$students); $index++) {
1.2 stredwic 626: my $fullname = $cache->{$students->[$index].':fullname'};
627: if($fullname eq $selectedName) {
628: if($cache->{'StudentAssessmentMove'} eq 'next') {
629: if($index == ((scalar @$students) - 1)) {
630: $selectedName = $students->[0];
1.3 stredwic 631: return $selectedName;
1.2 stredwic 632: } else {
633: $selectedName = $students->[$index+1];
1.3 stredwic 634: return $selectedName;
1.2 stredwic 635: }
636: } elsif($cache->{'StudentAssessmentMove'} eq 'previous') {
637: if($index == 0) {
638: $selectedName = $students->[-1];
1.3 stredwic 639: return $selectedName;
1.2 stredwic 640: } else {
641: $selectedName = $students->[$index-1];
1.3 stredwic 642: return $selectedName;
1.2 stredwic 643: }
644: } else {
645: $selectedName = $students->[$index];
1.3 stredwic 646: return $selectedName;
1.2 stredwic 647: }
648: last;
649: }
650: }
651:
1.3 stredwic 652: return 'No Student Selected';
1.2 stredwic 653: }
654:
655: =pod
656:
657: =item &ShouldShowColumn()
658:
659: Determine if a specified column should be shown on the chart.
660:
661: =over 4
662:
663: Input: $cache, $test
664:
665: $cache: A pointer to the hash tied to the cached data
666:
667: $test: The form name of the column (heading.$headingIndex) or
668: (sequence.$sequenceIndex)
669:
670: Output: 0 (false), 1 (true)
671:
672: =back
673:
674: =cut
675:
676: sub ShouldShowColumns {
677: my ($cache,$headings,$cacheKey)=@_;
678:
679: my @infoKeys=();
680: my @infoHeadings=();
681:
682: my @sequenceKeys=();
683: my @sequenceHeadings=();
684:
1.4 stredwic 685: my %doNotShow;
686:
1.2 stredwic 687: my $index;
1.4 stredwic 688: my $count = 0;
689: my $check = '';
1.2 stredwic 690: for($index=0; $index < scalar @$headings; $index++) {
1.4 stredwic 691: $check = 'HeadingColumn'.$headings->[$index];
692: if($cache->{'HeadingsFound'} =~ /$check/) {
693: push(@infoHeadings, $headings->[$index]);
694: push(@infoKeys, $cacheKey->[$index]);
695: } else {
696: $doNotShow{$count.':name'} = $headings->[$index];
697: $doNotShow{$count.':id'} = 'HeadingColumn'.$headings->[$index];
698: $count++;
699: }
1.2 stredwic 700: }
701:
702: foreach my $sequence (split(/\:/,$cache->{'orderedSequences'})) {
1.4 stredwic 703: $check = 'SequenceColumn'.$sequence;
1.21 minaeibi 704: if($cache->{'SequencesFound'} eq 'All Sequences' ||
1.4 stredwic 705: $cache->{'SequencesFound'} =~ /$check/) {
706: push(@sequenceHeadings, $cache->{$sequence.':title'});
707: push(@sequenceKeys, $sequence);
708: } else {
709: $doNotShow{$count.':name'} = $cache->{$sequence.':title'};
710: $doNotShow{$count.':id'} = 'SequenceColumn'.$sequence;
711: $count++;
712: }
1.2 stredwic 713: }
714:
1.4 stredwic 715: $doNotShow{'count'} = $count;
1.2 stredwic 716:
1.21 minaeibi 717: return (\@infoHeadings, \@infoKeys, \@sequenceHeadings,
1.4 stredwic 718: \@sequenceKeys, \%doNotShow);
1.2 stredwic 719: }
720:
721: #---- END Student Assessment Worker Functions --------------------------------
722:
1.1 stredwic 723: 1;
724: __END__
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>
![[BACK]](/icons/back.gif){kind=icon}
Return to lonstudentassessment.pm CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [LON-CAPA] / loncom / interface / statistics