1: # The LearningOnline Network with CAPA
2: #
3: # $Id: lonstatistics.pm,v 1.148.2.7 2010/12/05 17:27:30 raeburn Exp $
4: #
5: # Copyright Michigan State University Board of Trustees
6: #
7: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
8: #
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: #
29: ###
30:
31:
32:
33: package Apache::lonstatistics;
34:
35: use strict;
36: use Apache::Constants qw(:common :http);
37: use vars qw(
38: @FullClasslist
39: @Students
40: @Sections
41: @Groups
42: %StudentData
43: @StudentDataOrder
44: @SelectedStudentData
45: $enrollment_status);
46:
47: use Apache::lonnet;
48: use Apache::lonhomework;
49: use Apache::loncommon;
50: use Apache::loncoursedata;
51: use Apache::lonhtmlcommon;
52: use Apache::lonmysql;
53: use Apache::lonlocal;
54: use Apache::longroup;
55: use Time::HiRes;
56: #
57: # Statistics Packages
58: use Apache::lonproblemanalysis();
59: use Apache::lonsubmissiontimeanalysis();
60: use Apache::loncorrectproblemplot();
61: use Apache::lonproblemstatistics();
62: use Apache::lonstudentassessment();
63: use Apache::lonpercentage;
64: use Apache::lonstudentsubmissions();
65: use Apache::lonsurveyreports();
66: use Apache::longradinganalysis();
67: use LONCAPA;
68:
69: #
70: # Classlist variables
71: #
72: my $curr_student;
73: my $prev_student;
74: my $next_student;
75:
76:
77: sub clear_classlist_variables {
78: undef(@FullClasslist);
79: undef(@Students);
80: undef(@Sections);
81: undef(@Groups);
82: undef(%StudentData);
83: undef(@SelectedStudentData);
84: undef($curr_student);
85: undef($prev_student);
86: undef($next_student);
87: }
88:
89:
90: sub PrepareClasslist {
91: my %Sections;
92: &clear_classlist_variables();
93: #
94: # Retrieve the classlist
95: my $cid = $env{'request.course.id'};
96: my $cdom = $env{'course.'.$cid.'.domain'};
97: my $cnum = $env{'course.'.$cid.'.num'};
98: my ($classlist,$field_names) = &Apache::loncoursedata::get_classlist($cdom,
99: $cnum);
100: my @selected_sections = &get_selected_sections();
101: my @selected_groups = &get_selected_groups();
102: #
103: # Deal with instructors with restricted section access
104: if ($env{'request.course.sec'} !~ /^\s*$/) {
105: @selected_sections = ($env{'request.course.sec'});
106: }
107: #
108: # Set up %StudentData
109: @StudentDataOrder = qw/fullname username domain id section status groups comments/;
110: foreach my $field (@StudentDataOrder) {
111: $StudentData{$field}->{'title'} = &mt($field);
112: $StudentData{$field}->{'base_width'} = length(&mt($field));
113: $StudentData{$field}->{'width'} =
114: $StudentData{$field}->{'base_width'};
115: }
116: #
117: # get the status requested
118: $enrollment_status = 'Active';
119: $enrollment_status = $env{'form.Status'} if (exists($env{'form.Status'}));
120: #
121: # Get groupmembership
122: my ($classgroups,$studentgroups);
123: my %curr_groups = &Apache::longroup::coursegroups($cdom,$cnum);
124: if (%curr_groups) {
125: ($classgroups,$studentgroups) =
126: &Apache::loncoursedata::get_group_memberships($classlist,
127: $field_names,
128: $cdom,$cnum);
129: }
130: my $now = time;
131:
132: # Process the classlist
133: while (my ($student,$student_data) = each (%$classlist)) {
134: my $studenthash = ();
135: for (my $i=0; $i< scalar(@$field_names);$i++) {
136: my $field = $field_names->[$i];
137: # Store the data
138: $studenthash->{$field}=$student_data->[$i];
139: # Keep track of the width of the fields
140: next if (! exists($StudentData{$field}));
141: my $length = length($student_data->[$i]);
142: if ($StudentData{$field}->{'width'} < $length) {
143: $StudentData{$field}->{'width'} = $length;
144: }
145: }
146: my @studentsgroups = &Apache::loncoursedata::get_students_groups
147: ($student,$enrollment_status,
148: $classgroups);
149: if (@studentsgroups) {
150: $studenthash->{'groups'} = join(', ',@studentsgroups);
151: $studenthash->{'groupref'} = \@studentsgroups;
152: } else {
153: $studenthash->{'groups'} = 'none';
154: $studenthash->{'groupref'} = [];
155: }
156: push (@FullClasslist,$studenthash);
157: #
158: # Build up a list of sections
159: my $section = $studenthash->{'section'};
160: if (! defined($section) || $section =~/^\s*$/ || $section == -1) {
161: $studenthash->{'section'} = 'none';
162: $section = $studenthash->{'section'};
163: }
164: $Sections{$section}++;
165: #
166: # Only put in the list those students we are interested in
167: foreach my $sect (@selected_sections) {
168: if ( (($sect eq 'all') ||
169: ($section eq $sect)) &&
170: (($studenthash->{'status'} eq $enrollment_status) ||
171: ($enrollment_status eq 'Any'))
172: ){
173: my $groupcheck = 0;
174: if (grep(/^all$/,@selected_groups)) {
175: push(@Students,$studenthash);
176: last;
177: } elsif (grep(/^none$/,@selected_groups)) {
178: if ($studenthash->{'groups'} eq 'none') {
179: push(@Students,$studenthash);
180: last;
181: }
182: } else {
183: foreach my $group (@selected_groups) {
184: if (grep(/^$group$/,@studentsgroups)) {
185: push(@Students,$studenthash);
186: $groupcheck = 1;
187: last;
188: }
189: }
190: if ($groupcheck) {
191: last;
192: }
193: }
194: }
195: }
196: }
197: #
198: # Put the consolidated section data in the right place
199: if ($env{'request.course.sec'} !~ /^\s*$/) {
200: @Sections = ($env{'request.course.sec'});
201: } else {
202: @Sections = sort {
203: if ($a == $a && $b == $b ) { return $a <=> $b; }
204: return $a cmp $b;
205: } keys(%Sections);
206:
207: unshift(@Sections,'all'); # Put 'all' at the front of the list
208: }
209: # Sort the groups
210: @Groups = sort {$a cmp $b} keys(%{$studentgroups});
211: unshift(@Groups,'all'); # Put 'all' at the front of the list
212:
213: #
214: # Sort the Students
215: my $sortby = 'fullname';
216: $sortby = $env{'form.sort'} if (exists($env{'form.sort'}));
217: my @TmpStudents = sort { lc($a->{$sortby}) cmp lc($b->{$sortby}) ||
218: lc($a->{'fullname'}) cmp lc($b->{'fullname'}) ||
219: lc($a->{'username'}) cmp lc($b->{'username'}) } @Students;
220: @Students = @TmpStudents;
221: #
222: # Now deal with that current student thing....
223: $curr_student = undef;
224: if (exists($env{'form.SelectedStudent'})) {
225: my ($current_uname,$current_dom) =
226: split(':',$env{'form.SelectedStudent'});
227: my $i;
228: for ($i = 0; $i<=$#Students; $i++) {
229: next if (($Students[$i]->{'username'} ne $current_uname) ||
230: ($Students[$i]->{'domain'} ne $current_dom));
231: $curr_student = $Students[$i];
232: last; # If we get here, we have our student.
233: }
234: if (defined($curr_student)) {
235: if ($i == 0) {
236: $prev_student = undef;
237: } else {
238: $prev_student = $Students[$i-1];
239: }
240: if ($i == $#Students) {
241: $next_student = undef;
242: } else {
243: $next_student = $Students[$i+1];
244: }
245: }
246: }
247: #
248: if (exists($env{'form.StudentData'})) {
249: @SelectedStudentData =
250: &Apache::loncommon::get_env_multiple('form.StudentData');
251: } else {
252: @SelectedStudentData = ('username');
253: }
254: foreach (@SelectedStudentData) {
255: if ($_ eq 'all') {
256: @SelectedStudentData = ('all');
257: last;
258: }
259: }
260: #
261: return;
262: }
263:
264:
265: sub get_selected_sections {
266: my @selected_sections =
267: &Apache::loncommon::get_env_multiple('form.Section');
268: @selected_sections = ('all') if (! @selected_sections);
269: foreach (@selected_sections) {
270: if ($_ eq 'all') {
271: @selected_sections = ('all');
272: }
273: }
274: #
275: # Deal with instructors with restricted section access
276: if ($env{'request.course.sec'} !~ /^\s*$/) {
277: @selected_sections = ($env{'request.course.sec'});
278: }
279: return @selected_sections;
280: }
281:
282:
283: sub get_selected_groups {
284: my @selected_groups =
285: &Apache::loncommon::get_env_multiple('form.Group');
286: @selected_groups = ('all') if (! @selected_groups);
287: foreach my $grp (@selected_groups) {
288: if ($grp eq 'all') {
289: @selected_groups = ('all');
290: last;
291: }
292: }
293: return @selected_groups;
294: }
295:
296:
297:
298: sub section_and_enrollment_description {
299: my ($mode) = @_;
300: if (! defined($mode)) { $mode = 'localized'; }
301: my @sections = &Apache::lonstatistics::get_selected_sections();
302: my @groups = &Apache::lonstatistics::get_selected_groups();
303: my $description;
304: if ($mode eq 'localized') {
305: $description = &mt('Unable to determine section, groups and access status');
306: } elsif ($mode eq 'plaintext') {
307: $description = 'Unable to determine section, groups and access status';
308: } else {
309: $description = 'Bad parameter passed to lonstatistics::section_and_enrollment_description';
310: &Apache::lonnet::logthis($description);
311: }
312: $description = §ion_or_group_text($mode,'section',@sections).
313: ' '.§ion_or_group_text($mode,'group',@groups);
314: if ($mode eq 'localized') {
315: $description .= ' '.&mt($env{'form.Status'}.' access status.');
316: } elsif ($mode eq 'plaintext') {
317: $description .= ' '.$env{'form.Status'}.' access status.';
318: }
319: return $description;
320: }
321:
322:
323:
324:
325: sub section_or_group_text {
326: my ($mode,$type,@items) = @_;
327: my $text;
328: my %phrases = ();
329: %{$phrases{'section'}} = (
330: single => 'Section',
331: all => 'All sections',
332: plural => 'Sections',
333: );
334: %{$phrases{'group'}} = (
335: single => 'Group',
336: all => 'All groups',
337: plural => 'Groups',
338: );
339: if (scalar(@items) == 1 && $items[0] ne 'all') {
340: if ($mode eq 'localized') {
341: $text = &mt($phrases{$type}{single}.' [_1].',$items[0]);
342: } elsif ($mode eq 'plaintext') {
343: $text = $phrases{$type}{single}.' '.$items[0].'.';
344:
345: }
346: } elsif (scalar(@items) && $items[0] eq 'all') {
347: if ($mode eq 'localized') {
348: $text = &mt($phrases{$type}{all}.'.');
349: } elsif ($mode eq 'plaintext') {
350: $text = $phrases{$type}{all}.'.';
351: }
352: } elsif (scalar(@items)) {
353: my $lastitem = pop(@items);
354: if ($mode eq 'localized') {
355: $text = &mt($phrases{$type}{plural}.' [_1] and [_2].',
356: join(', ',@items),$lastitem);
357: } elsif ($mode eq 'plaintext') {
358: $text = $phrases{$type}{plural}.' '.join(', ',@items).' and '.
359: $lastitem.'.';
360: }
361: }
362: return $text;
363: }
364:
365:
366: sub get_students {
367: if (! @Students) {
368: &PrepareClasslist()
369: }
370: return @Students;
371: }
372:
373:
374:
375: sub current_student {
376: return $curr_student;
377: }
378:
379:
380:
381: sub previous_student {
382: return $prev_student;
383: }
384:
385:
386:
387: sub next_student {
388: return $next_student;
389: }
390:
391:
392:
393: sub StudentDataSelect {
394: my ($elementname,$status,$numvisible)=@_;
395: if ($numvisible < 1) {
396: return;
397: }
398: #
399: # Build the form element
400: my $Str = "\n";
401: $Str .= '<select name="'.$elementname.'" ';
402: if ($status ne 'single') {
403: $Str .= 'multiple="multiple" ';
404: }
405: $Str .= 'size="'.$numvisible.'" >'."\n";
406: #
407: # Deal with 'all'
408: $Str .= ' <option value="all" ';
409: foreach (@SelectedStudentData) {
410: if ($_ eq 'all') {
411: $Str .= 'selected ';
412: last;
413: }
414: }
415: $Str .= ">all</option>\n";
416: #
417: # Loop through the student data fields
418: foreach my $item (@StudentDataOrder) {
419: $Str .= ' <option value="'.$item.'" ';
420: foreach (@SelectedStudentData) {
421: if ($item eq $_ ) {
422: $Str .= 'selected ';
423: last;
424: }
425: }
426: $Str .= '>'.$item."</option>\n";
427: }
428: $Str .= "</select>\n";
429: return $Str;
430: }
431:
432:
433:
434: sub get_selected_maps {
435: my ($elementname) = @_;
436: my @selected_maps =
437: &Apache::loncommon::get_env_multiple('form.'.$elementname);
438: @selected_maps = ('all') if (! @selected_maps);
439: foreach my $map (@selected_maps) {
440: if ($map eq 'all') {
441: @selected_maps = ('all');
442: last;
443: }
444: }
445: return @selected_maps;
446: }
447:
448:
449:
450:
451: sub selected_sequences_with_assessments {
452: my ($mode) = @_;
453: $mode = 'selected' if (! defined($mode));
454: my $navmap = Apache::lonnavmaps::navmap->new();
455: if (!defined($navmap)) {
456: return ('Can not open Coursemap');
457: }
458: #
459: my $mapurl;
460: if (&Apache::loncommon::needs_gci_custom()) {
461: my $cid = $env{'request.course.id'};
462: if ($cid) {
463: my $cdom = $env{'course.'.$cid.'.domain'};
464: if ($cdom =~ /^\w+citest$/) {
465: my $sequence = &Apache::loncommon::get_citest_map($cdom);
466: my $cnum = $env{'course.'.$cid.'.num'};
467: if ($sequence) {
468: $mapurl = '/uploaded/'.$cdom.'/'.$cnum.'/'.$sequence;
469: }
470: }
471: }
472: }
473: my @sequences = $navmap->retrieveResources($mapurl,
474: sub { shift->is_map(); },1,0,1);
475: unless (&Apache::loncommon::needs_gci_custom()) {
476: my $toplevelseq = $navmap->getById('0.0');
477: if (!grep(/^\Q$toplevelseq\E$/,@sequences)) {
478: unshift(@sequences,$toplevelseq);
479: }
480: }
481:
482: my @sequences_with_assessments;
483: foreach my $sequence (@sequences) {
484: if ($navmap->hasResource($sequence,sub { shift->is_problem(); },0,1)){
485: push(@sequences_with_assessments,$sequence);
486: }
487: }
488: #
489: my @sequences_to_show;
490: foreach my $sequence (@sequences_with_assessments) {
491: if ($mode eq 'all') {
492: push (@sequences_to_show,$sequence);
493: } elsif ($mode eq 'selected') {
494: foreach my $map_symb (&get_selected_maps('Maps')) {
495: if ($sequence->symb eq $map_symb || $map_symb eq 'all'){
496: push (@sequences_to_show,$sequence);
497: last; # Only put it in once
498: }
499: }
500: }
501:
502: }
503: return $navmap,@sequences_to_show;
504: }
505:
506:
507: sub map_select {
508: my ($elementname,$status,$numvisible)=@_;
509: if ($numvisible < 1) {
510: return;
511: }
512: #
513: # Set up array of selected items
514: my @selected_maps = &get_selected_maps($elementname);
515: #
516: # Build the form element
517: my $form = "\n";
518: $form .= '<select name="'.$elementname.'" ';
519: if ($status ne 'single') {
520: $form .= 'multiple="multiple" ';
521: }
522: $form .= 'size="'.$numvisible.'" >'."\n";
523: unless (&Apache::loncommon::needs_gci_custom()) {
524: #
525: # Put in option for 'all'
526: $form .= ' <option value="all" ';
527: if ($selected_maps[0] eq 'all') {
528: $form .= 'selected ';
529: }
530: $form .= ">all</option>\n";
531: }
532: #
533: # Loop through the sequences
534: my @sequences = &selected_sequences_with_assessments('all');
535: my $navmap;
536: if (!ref($sequences[0])) {
537: return $sequences[0];
538: } else {
539: $navmap = shift(@sequences);
540: }
541: foreach my $seq (@sequences){
542: $form .= ' <option value="'.$seq->symb.'" ';
543: if ((&Apache::loncommon::needs_gci_custom()) && (@selected_maps == 1)) {
544: $form .= 'selected ';
545: } else {
546: foreach (@selected_maps) {
547: if ($seq->symb eq $_) {
548: $form .= 'selected ';
549: last;
550: }
551: }
552: }
553: $form .= '>'.$seq->compTitle."</option>\n";
554: }
555: $form .= "</select>\n";
556: return $form;
557: }
558:
559:
560: sub SectionSelect {
561: my ($elementname,$status,$numvisible)=@_;
562: if ($numvisible < 1) {
563: return;
564: }
565: #
566: # Make sure we have the data we need to continue
567: if (! @Sections) {
568: &PrepareClasslist()
569: }
570: #
571: # Build the form element
572: my $Str = "\n";
573: $Str .= '<select name="'.$elementname.'" ';
574: if ($status ne 'single') {
575: $Str .= 'multiple="multiple" ';
576: }
577: $Str .= 'size="'.$numvisible.'" >'."\n";
578: #
579: # Loop through the sequences
580: foreach my $s (@Sections) {
581: $Str .= ' <option value="'.$s.'" ';
582: foreach (&get_selected_sections()) {
583: if ($s eq $_) {
584: $Str .= 'selected ';
585: last;
586: }
587: }
588: $Str .= '>'.$s."</option>\n";
589: }
590: $Str .= "</select>\n";
591: return $Str;
592: }
593:
594:
595: sub GroupSelect {
596: my ($elementname,$status,$numvisible)=@_;
597: if ($numvisible < 1) {
598: return;
599: }
600: #
601: # Make sure we have the data we need to continue
602: if (! @Groups) {
603: &PrepareClasslist();
604: }
605: #
606: # Build the form element
607: my $Str = "\n";
608: $Str .= '<select name="'.$elementname.'" ';
609: if ($status ne 'single') {
610: $Str .= 'multiple="multiple" ';
611: }
612: $Str .= 'size="'.$numvisible.'" >'."\n";
613: #
614: # Loop through the groups
615: foreach my $s (@Groups) {
616: $Str .= ' <option value="'.$s.'" ';
617: foreach my $group (&get_selected_groups()) {
618: if ($s eq $group) {
619: $Str .= 'selected ';
620: last;
621: }
622: }
623: $Str .= '>'.$s."</option>\n";
624: }
625: $Str .= "</select>\n";
626: }
627:
628:
629:
630:
631: sub DisplayClasslist {
632: my ($r)=@_;
633: &Apache::lonhtmlcommon::add_breadcrumb
634: ({text=>'Select One Student'});
635: #
636: # Output some of the standard interface components
637: my $Str;
638: $Str .= &Apache::lonhtmlcommon::breadcrumbs('Select One Student');
639: $Str .= '<p><table cellspacing="5">'."\n";
640: $Str .= '<tr>';
641: $Str .= '<th align="center"><b>'.&mt('Sections').'</b></th>';
642: $Str .= '<th align="center"><b>'.&mt('Groups').'</b></th>';
643: $Str .= '<th align="center"><b>'.&mt('Access Status').'</b></th>';
644: $Str .= '</tr>'.$/;
645: $Str .= '<tr>';
646: $Str .= '<td>'.
647: &Apache::lonstatistics::SectionSelect('Section','multiple',5).
648: '</td>';
649: $Str .= '<td>'.
650: &Apache::lonstatistics::GroupSelect('Group','multiple',5).
651: '</td>';
652: $Str .= '<td>'.
653: &Apache::lonhtmlcommon::StatusOptions(undef,undef,5).
654: '</td>';
655:
656: $Str .= '</tr>'.$/;
657: $Str .= '</table></p>';
658: $Str .= '<input type="submit" name="selectstudent" value="'.
659: &mt('Update Display').'" />';
660: $r->print($Str);
661: $r->rflush();
662: #
663: my @Fields = ('fullname','username','domain','id','section','status','groups');
664: #
665: $Str = '';
666: my @selected_sections = &get_selected_sections();
667: if (! @Students) {
668: if ($selected_sections[0] eq 'all') {
669: if (lc($env{'form.Status'}) eq 'active') {
670: $Str .= '<p class="LC_info">'.
671: &mt('There are no currently enrolled students in the course.').
672: '</p>';
673: } elsif (lc($env{'form.Status'}) eq 'expired') {
674: $Str .= '<p class="LC_info">'.
675: &mt('There are no previously enrolled students in the course.').
676: '</p>';
677: } elsif (lc($env{'form.Status'}) eq 'future') {
678: $Str .= '<p class="LC_info">'.
679: &mt('There are no students with future access in the course.').
680: '</p>';
681: } else { # 'any' and any others
682: $Str .= '<p class="LC_info">'.
683: &mt('There are no students in the course.').
684: '</p>';
685: }
686: } else {
687: if (lc($env{'form.Status'}) eq 'active') {
688: $Str .= '<p class="LC_info">'.
689: &mt('There are no currently enrolled students in the selected sections.').
690: '</p>';
691: } elsif (lc($env{'form.Status'}) eq 'expired') {
692: $Str .= '<p class="LC_info">'.
693: &mt('There are no previously enrolled students in the selected sections.').
694: '</p>';
695: } elsif (lc($env{'form.Status'}) eq 'future') {
696: $Str .= '<p class="LC_info">'.
697: &mt('There are no students with future access in the selected sections.').
698: '</p>';
699: } else { # 'any' and any others
700: $Str .= '<p class="LC_info">'.
701: &mt('There are no students in the selected sections.').
702: '</p>';
703: }
704: }
705: $Str.= '<p>'
706: .'<a href="/adm/statistics?reportSelected=student_assessment">'
707: .&mt('Return to the chart').'</a>'
708: .'</p>';
709: $r->print($Str);
710: $r->rflush();
711: return;
712: }
713:
714: $Str .= '<h2>'.&mt('Select One Student').'</h2>'
715: .'<p>'.&mt("Click on a student's name or username to view their chart").'</p>'
716: .&Apache::loncommon::start_data_table()
717: .&Apache::loncommon::start_data_table_header_row();
718: foreach my $field (@Fields) {
719: $Str .= '<th><a href="/adm/statistics?'.
720: 'reportSelected=student_assessment&'.
721: 'selectstudent=1&'.
722: 'sort='.$field.'">'.&mt($field).
723: '</a></th>';
724: }
725: $Str .= &Apache::loncommon::end_data_table_header_row();
726: #
727: foreach my $student (@Students) { # @Students is a package variable
728: my $sname = $student->{'username'}.':'.$student->{'domain'};
729: $Str .= &Apache::loncommon::start_data_table_row();
730: #
731: foreach my $field (@Fields) {
732: $Str .= '<td>';
733: if ($field eq 'fullname' || $field eq 'username') {
734: $Str .= '<a href="/adm/statistics?reportSelected=';
735: $Str .= &escape('student_assessment');
736: $Str .= '&sort='.&escape($env{'form.sort'});
737: $Str .= '&SelectedStudent=';
738: $Str .= &escape($sname).'">';
739: $Str .= $student->{$field}.' ';
740: $Str .= '</a>';
741: } elsif ($field eq 'status') {
742: $Str .= &mt($student->{$field});
743: } else {
744: $Str .= $student->{$field};
745: }
746: $Str .= '</td>';
747: }
748: $Str .= &Apache::loncommon::end_data_table_row();
749: }
750: $Str .= &Apache::loncommon::end_data_table();
751: #
752: $r->print($Str);
753: $r->rflush();
754: #
755: return;
756: }
757:
758:
759:
760: sub CreateMainMenu {
761: #
762: # Define menu data
763: my @reports = (
764: {categorytitle => 'Statistics and Analyses',
765: items => [
766: {url => '/adm/statistics?reportSelected=problem_statistics',
767: permission => 'F',
768: icon => 'document-open.png',
769: linktext => ('Overall Problem Statistics'),
770: linktitle => ('Student performance statistics on all problems.')},
771:
772: {url => '/adm/statistics?reportSelected=problem_analysis',
773: permission => 'F',
774: icon => 'edit-find.png',
775: linktext => ('Detailed Problem Analysis'),
776: linktitle => ('Detailed statistics and graphs of student performance on problems.')},
777: ]},
778: {categorytitle => 'Plots',
779: items => [
780: {url => '/adm/statistics?reportSelected=submissiontime_analysis',
781: permission => 'F',
782: icon => 'subtimpl.png',
783: linktext => ('Submission Time Plots'),
784: linktitle => ('Display and analysis of submission times on assessments.')},
785:
786: {url => '/adm/statistics?reportSelected=correct_problems_plot',
787: permission => 'F',
788: icon => 'coprplot.png',
789: linktext => ('Correct Problems Plot'),
790: linktitle => ('Display a histogram of student performance in the course.')},
791: ]});
792: if (&Apache::loncommon::needs_gci_custom()) {
793: push(@reports,
794: {categorytitle => 'Reports',
795: items => [
796: {url => '/adm/statistics?reportSelected=student_submission_reports',
797: permission => 'F',
798: icon => 'edit-copy.png',
799: linktext => ('Student Submission Reports'),
800: linktitle => ('Prepare reports of student submissions.')},
801: ]});
802: } else {
803: push(@reports,
804: {categorytitle => 'Reports',
805: items => [
806: {url => '/adm/statistics?reportSelected=student_submission_reports',
807: permission => 'F',
808: icon => 'edit-copy.png',
809: linktext => ('Student Submission Reports'),
810: linktitle => ('Prepare reports of student submissions.')},
811:
812: {url => '/adm/statistics?reportSelected=survey_reports',
813: permission => 'F',
814: icon => 'docs.png',
815: linktext => ('Survey Reports'),
816: linktitle => ('Prepare reports on survey results.')},
817: ]});
818: }
819:
820: return &Apache::lonhtmlcommon::generate_menu(@reports);
821:
822: }
823:
824: sub handler {
825: my $r=shift;
826: my $c = $r->connection();
827: #
828: # Check for overloading
829: my $loaderror=&Apache::lonnet::overloaderror($r);
830: if ($loaderror) { return $loaderror; }
831: $loaderror=
832: &Apache::lonnet::overloaderror($r,
833: $env{'course.'.$env{'request.course.id'}.'.home'});
834: if ($loaderror) { return $loaderror; }
835: #
836: # Check for access
837: if (! &Apache::lonnet::allowed('vgr',$env{'request.course.id'})) {
838: $env{'user.error.msg'}=
839: $r->uri.":vgr:0:0:Cannot view grades for complete course";
840: if (! &Apache::lonnet::allowed('vgr',
841: $env{'request.course.id'}.'/'.$env{'request.course.sec'})) {
842: $env{'user.error.msg'}=
843: $r->uri.":vgr:0:0:Cannot view grades with given role";
844: return HTTP_NOT_ACCEPTABLE;
845: }
846: }
847: #
848: # Send the header
849: &Apache::loncommon::no_cache($r);
850: &Apache::loncommon::content_type($r,'text/html');
851: $r->send_http_header;
852: if ($r->header_only) { return OK; }
853: my $gcicustom = &Apache::loncommon::needs_gci_custom();
854: if ($gcicustom) {
855: my $now = time;
856: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
857: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
858: my $courseopt=&Apache::lonnet::get_courseresdata($cnum,$cdom);
859: my $duedate = $courseopt->{$env{'request.course.id'}.'.0.duedate'};
860: if ((!$duedate) || ($duedate > $now)) {
861: my $brcrum = [{href=> '/adm/statistics',
862: text=> 'Statistics',}];
863: my $args = {bread_crumbs => $brcrum,
864: bread_crumbs_component => 'Statistics Main Page'};
865: $r->print(&Apache::loncommon::start_page('Course Statistics',undef,$args));
866: $r->print('<h3>'.&mt('Display of statistics').'</h3>');
867: if ($duedate > $now) {
868: $r->print('<p>'.&mt('Aggregate test performance data will be available after the Concept Test end date: [_1].',
869: &Apache::lonlocal::locallocaltime($duedate)).'</p>');
870: } else {
871: $r->print('<p>'.
872: &mt('Aggregate test performance data unavailable without definition of an end date for the Concept Test.').'</p>');
873: }
874: $r->print(&Apache::loncommon::end_page());
875: return OK;
876: }
877: }
878:
879: #
880: # Extract form elements from query string
881: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
882: ['sort','reportSelected',
883: 'SelectedStudent']);
884: #
885: # Give the LON-CAPA page header
886: my $style = <<ENDSTYLE;
887: <style type="text/css">
888: ul.sub_studentans { list-style-type: none }
889: ul.sub_correctans { list-style-type: none }
890: tr.even { background-color: \#CCCCCC }
891: td.essay { border: 1px solid gray; }
892: </style>
893: ENDSTYLE
894:
895: $r->print(&Apache::loncommon::start_page('Course Statistics and Charts',
896: $style));
897: $r->rflush();
898: #
899: # Either print out a menu for them or send them to a report
900: &Apache::lonhtmlcommon::clear_breadcrumbs();
901: &Apache::lonhtmlcommon::add_breadcrumb({href=>'/adm/statistics',
902: title=>'Statistics',
903: text =>'Statistics',
904: faq=>139,
905: bug=>'Statistics and Charts'});
906: if (! exists($env{'form.reportSelected'}) ||
907: $env{'form.reportSelected'} eq '') {
908: $r->print(&Apache::lonhtmlcommon::breadcrumbs('Statistics Main Page').
909: &CreateMainMenu());
910: } else {
911: #
912: if (! &Apache::lonmysql::verify_sql_connection()) {
913: my $serveradmin = $r->dir_config('lonAdmEMail');
914: $r->print('<h2 class="LC_error">'.
915: &mt('Unable to connect to database!').
916: '</h2>');
917: $r->print('<p>'
918: .&mt('Please notify the server administrator [_1]',
919: ,'<b>'.$serveradmin.'</b>')
920: .'</p>');
921: $r->print('<p>'.
922: &mt('Course Statistics and Charts cannot be '.
923: 'retrieved until the database is restarted. '.
924: 'Your data is intact but cannot be displayed '.
925: 'at this time.').'</p>');
926: $r->print(&Apache::loncommon::end_page());
927: return;
928: }
929: #
930: # Clean out the caches
931: if (exists($env{'form.ClearCache'})) {
932: &Apache::loncoursedata::delete_caches($env{'requres.course.id'});
933: }
934: #
935: # Begin form output
936: $r->print('<form name="Statistics" ');
937: $r->print('method="post" action="/adm/statistics">');
938: $r->rflush();
939: #
940: my $GoToPage = $env{'form.reportSelected'};
941: #
942: $r->print('<input type="hidden" name="reportSelected" value="'.
943: $GoToPage.'">');
944: if($GoToPage eq 'activitylog') {
945: # &Apache::lonproblemstatistics::Activity();
946: } elsif($GoToPage eq 'problem_statistics') {
947: &Apache::lonhtmlcommon::add_breadcrumb
948: ({href=>'/adm/statistics?reportselected=problem_statistics',
949: text=>'Overall Problem Statistics'});
950: &Apache::lonproblemstatistics::BuildProblemStatisticsPage($r,$c);
951: } elsif($GoToPage eq 'problem_analysis') {
952: &Apache::lonhtmlcommon::add_breadcrumb
953: ({href=>'/adm/statistics?reportselected=problem_analysis',
954: text=>'Detailed Problem Analysis'});
955: &Apache::lonproblemanalysis::BuildProblemAnalysisPage($r,$c);
956: } elsif($GoToPage eq 'submissiontime_analysis') {
957: &Apache::lonhtmlcommon::add_breadcrumb
958: ({href=>
959: '/adm/statistics?reportselected=submissiontime_analysis',
960: text=>'Submission Time Plots'});
961: &Apache::lonsubmissiontimeanalysis::BuildSubmissionTimePage($r,$c);
962: } elsif($GoToPage eq 'student_submission_reports') {
963: &Apache::lonhtmlcommon::add_breadcrumb
964: ({href=>
965: '/adm/statistics?reportselected=student_submission_reports',
966: text=>'Student Submission Reports'});
967: &Apache::lonstudentsubmissions::BuildStudentSubmissionsPage($r,$c);
968: } elsif($GoToPage eq 'survey_reports') {
969: &Apache::lonhtmlcommon::add_breadcrumb
970: ({href=>
971: '/adm/statistics?reportselected=survey_reports',
972: text=>'Survey Reports'});
973: &Apache::lonsurveyreports::BuildSurveyReportsPage($r,$c);
974: } elsif($GoToPage eq 'correct_problems_plot') {
975: &Apache::lonhtmlcommon::add_breadcrumb
976: ({href=>'/adm/statistics?reportselected=correct_problems_plot',
977: text=>'Correct Problems Plot'});
978: &Apache::loncorrectproblemplot::BuildCorrectProblemsPage($r,$c);
979: } elsif($GoToPage eq 'student_assessment') {
980: &Apache::lonhtmlcommon::clear_breadcrumbs();
981: &Apache::lonhtmlcommon::add_breadcrumb
982: ({href=>'/adm/statistics?reportselected=student_assessment',
983: text=>'Chart'});
984: if ($gcicustom) {
985: $r->print(&mt('Only aggregate performance data are available for Concept Tests.'));
986: } else {
987: &Apache::lonstudentassessment::BuildStudentAssessmentPage($r,$c);
988: }
989: } elsif($GoToPage eq 'grading_analysis') {
990: &Apache::lonhtmlcommon::add_breadcrumb
991: ({href=>'/adm/statistics?reportselected=grading_anaylsis',
992: text=>'Grading Analysis'});
993: &Apache::longradinganalysis::build_grading_analysis_page($r,$c);
994: }
995: #
996: $r->print("</form>\n");
997: }
998: $r->print(&Apache::loncommon::end_page());
999: $r->rflush();
1000: #
1001: return OK;
1002: }
1003:
1004: 1;
1005:
1006: __END__
1007:
1008: =pod
1009:
1010: =head1 NAME
1011:
1012: lonstatistics
1013:
1014: =head1 SYNOPSIS
1015:
1016: Main handler for statistics and chart.
1017:
1018: This is part of the LearningOnline Network with CAPA project
1019: described at http://www.lon-capa.org.
1020:
1021:
1022: =head1 PACKAGE VARIABLES
1023:
1024: =over
1025:
1026: =item @FullClasslist The full classlist
1027:
1028: =item @Students The students we are concerned with for this invocation
1029:
1030: =item @Sections The sections available in this class
1031:
1032: =item @Groups The groups available in the class
1033:
1034: =item $curr_student The student currently being examined
1035:
1036: =item $prev_student The student previous in the classlist
1037:
1038: =item $next_student The student next in the classlist
1039:
1040: =back
1041:
1042: =head1 SUBROUTINES
1043:
1044: =over
1045:
1046: =item &clear_classlist_variables()
1047:
1048: undef the following package variables:
1049:
1050: =over 4
1051:
1052: =item * @FullClasslist
1053:
1054: =item * @Students
1055:
1056: =item * @Sections
1057:
1058: =item * @Groups
1059:
1060: =item * %StudentData
1061:
1062: =item * @StudentDataOrder
1063:
1064: =item * @SelectedStudentData
1065:
1066: =item * $curr_student
1067:
1068: =item * $prev_student
1069:
1070: =item * $next_student
1071:
1072: =back
1073:
1074: =item &PrepareClasslist()
1075:
1076: Build up the classlist information. The classlist information is kept in
1077: the following package variables:
1078:
1079: =over 4
1080:
1081: =item * @FullClasslist
1082:
1083: =item * @Students
1084:
1085: =item * @Sections
1086:
1087: =item * @Groups
1088:
1089: =item * %StudentData
1090:
1091: =item * @SelectedStudentData
1092:
1093: =item * $curr_student
1094:
1095: =item * $prev_student
1096:
1097: =item * $next_student
1098:
1099: =back
1100:
1101: $curr_student, $prev_student, and $next_student may not be defined, depending
1102: upon the calling context.
1103:
1104: =item get_selected_sections()
1105:
1106: Returns an array of the selected sections
1107:
1108: =item get_selected_groups()
1109:
1110: Returns an array of the selected groups
1111:
1112: =item §ion_and_enrollment_description()
1113:
1114: Returns a string describing the currently selected section(s), group(s) and
1115: access status.
1116:
1117: Inputs: mode = 'plaintext' or 'localized' (defaults to 'localized')
1118: 'plaintext' is used for example in Excel spreadsheets.
1119: Returns: scalar description string.
1120:
1121: =item section_or_group_text()
1122:
1123: =item get_students()
1124:
1125: Returns a list of the selected students
1126:
1127: =item ¤t_student()
1128:
1129: Returns a pointer to a hash containing data about the currently
1130: selected student.
1131:
1132: =item &previous_student()
1133:
1134: Returns a pointer to a hash containing data about the student prior
1135: in the list of students. Or something.
1136:
1137: =item &next_student()
1138:
1139: Returns a pointer to a hash containing data about the next student
1140: to be viewed.
1141:
1142: =item &StudentDataSelect($elementname,$status,$numvisible,$selected)
1143:
1144: Returns html for a selection box allowing the user to choose one (or more)
1145: of the fields of student data available (fullname, username, id, section, etc)
1146:
1147: =over 4
1148:
1149: =item * $elementname The name of the HTML form element
1150:
1151: =item * $status 'multiple' or 'single' selection box
1152:
1153: =item * $numvisible The number of options to be visible
1154:
1155: =back
1156:
1157: =item &get_selected_maps($elementname)
1158:
1159: Input: Name of the <select> form element used to specify the maps.
1160:
1161: Returns: Array of symbs of selected maps or the description 'all'.
1162: If form.$elementname does not exist, 'all' is returned.
1163:
1164: =item &selected_sequences_with_assessments()
1165:
1166: Retrieve the sequences which were selected by the user to show.
1167:
1168: Input: $mode: scalar. Either 'selected' or 'all'. If not specified,
1169: 'selected' is used.
1170:
1171: Returns: an array containing a navmap object and navmap resources,
1172: or an array containing a scalar with an error message.
1173:
1174: =item &map_select($elementname,$status,$numvisible,$restriction)
1175:
1176: Returns html for a selection box allowing the user to choose one (or more)
1177: of the sequences in the course. The values of the sequences are the symbs.
1178: If the top sequence is selected, the value 'top' will result.
1179:
1180: =over 4
1181:
1182: =item * $elementname The name of the HTML form element
1183:
1184: =item * $status 'multiple' or 'single' selection box
1185:
1186: =item * $numvisible The number of options to be visible
1187:
1188: =back
1189:
1190: =item &SectionSelect($elementname,$status,$numvisible)
1191:
1192: Returns html for a selection box allowing the user to choose one (or more)
1193: of the sections in the course.
1194:
1195: Uses the package variables @Sections
1196:
1197: =over 4
1198:
1199: =item * $elementname The name of the HTML form element
1200:
1201: =item * $status 'multiple' or 'single' selection box
1202:
1203: =item * $numvisible The number of options to be visible
1204:
1205: =back
1206:
1207: =item &GroupSelect($elementname,$status,$numvisible)
1208:
1209: Returns html for a selection box allowing the user to choose one (or more)
1210: of the groups in the course.
1211:
1212: Uses the package variables @Groups
1213:
1214: =over 4
1215:
1216: =item * $elementname The name of the HTML form element
1217:
1218: =item * $status 'multiple' or 'single' selection box
1219:
1220: =item * $numvisible The number of options to be visible
1221:
1222: =back
1223:
1224: =item CreateMainMenu()
1225:
1226: =back
1227:
1228: =cut
1229:
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