1: # The LearningOnline Network with CAPA
2: #
3: # $Id: lonstatistics.pm,v 1.148 2009/12/16 13:00:45 bisitz 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 @sequences = $navmap->retrieveResources(undef,
460: sub { shift->is_map(); },1,0,1);
461: my $toplevelseq = $navmap->getById('0.0');
462: if (!grep(/^\Q$toplevelseq\E$/,@sequences)) {
463: unshift(@sequences,$toplevelseq);
464: }
465:
466: my @sequences_with_assessments;
467: foreach my $sequence (@sequences) {
468: if ($navmap->hasResource($sequence,sub { shift->is_problem(); },0,1)){
469: push(@sequences_with_assessments,$sequence);
470: }
471: }
472: #
473: my @sequences_to_show;
474: foreach my $sequence (@sequences_with_assessments) {
475: if ($mode eq 'all') {
476: push (@sequences_to_show,$sequence);
477: } elsif ($mode eq 'selected') {
478: foreach my $map_symb (&get_selected_maps('Maps')) {
479: if ($sequence->symb eq $map_symb || $map_symb eq 'all'){
480: push (@sequences_to_show,$sequence);
481: last; # Only put it in once
482: }
483: }
484: }
485:
486: }
487: return $navmap,@sequences_to_show;
488: }
489:
490:
491: sub map_select {
492: my ($elementname,$status,$numvisible)=@_;
493: if ($numvisible < 1) {
494: return;
495: }
496: #
497: # Set up array of selected items
498: my @selected_maps = &get_selected_maps($elementname);
499: #
500: # Build the form element
501: my $form = "\n";
502: $form .= '<select name="'.$elementname.'" ';
503: if ($status ne 'single') {
504: $form .= 'multiple="multiple" ';
505: }
506: $form .= 'size="'.$numvisible.'" >'."\n";
507: #
508: # Put in option for 'all'
509: $form .= ' <option value="all" ';
510: if ($selected_maps[0] eq 'all') {
511: $form .= 'selected ';
512: }
513: $form .= ">all</option>\n";
514: #
515: # Loop through the sequences
516: my @sequences = &selected_sequences_with_assessments('all');
517: my $navmap;
518: if (!ref($sequences[0])) {
519: return $sequences[0];
520: } else {
521: $navmap = shift(@sequences);
522: }
523: foreach my $seq (@sequences){
524: $form .= ' <option value="'.$seq->symb.'" ';
525: foreach (@selected_maps) {
526: if ($seq->symb eq $_) {
527: $form .= 'selected ';
528: last;
529: }
530: }
531: $form .= '>'.$seq->compTitle."</option>\n";
532: }
533: $form .= "</select>\n";
534: return $form;
535: }
536:
537:
538: sub SectionSelect {
539: my ($elementname,$status,$numvisible)=@_;
540: if ($numvisible < 1) {
541: return;
542: }
543: #
544: # Make sure we have the data we need to continue
545: if (! @Sections) {
546: &PrepareClasslist()
547: }
548: #
549: # Build the form element
550: my $Str = "\n";
551: $Str .= '<select name="'.$elementname.'" ';
552: if ($status ne 'single') {
553: $Str .= 'multiple="multiple" ';
554: }
555: $Str .= 'size="'.$numvisible.'" >'."\n";
556: #
557: # Loop through the sequences
558: foreach my $s (@Sections) {
559: $Str .= ' <option value="'.$s.'" ';
560: foreach (&get_selected_sections()) {
561: if ($s eq $_) {
562: $Str .= 'selected ';
563: last;
564: }
565: }
566: $Str .= '>'.$s."</option>\n";
567: }
568: $Str .= "</select>\n";
569: return $Str;
570: }
571:
572:
573: sub GroupSelect {
574: my ($elementname,$status,$numvisible)=@_;
575: if ($numvisible < 1) {
576: return;
577: }
578: #
579: # Make sure we have the data we need to continue
580: if (! @Groups) {
581: &PrepareClasslist();
582: }
583: #
584: # Build the form element
585: my $Str = "\n";
586: $Str .= '<select name="'.$elementname.'" ';
587: if ($status ne 'single') {
588: $Str .= 'multiple="multiple" ';
589: }
590: $Str .= 'size="'.$numvisible.'" >'."\n";
591: #
592: # Loop through the groups
593: foreach my $s (@Groups) {
594: $Str .= ' <option value="'.$s.'" ';
595: foreach my $group (&get_selected_groups()) {
596: if ($s eq $group) {
597: $Str .= 'selected ';
598: last;
599: }
600: }
601: $Str .= '>'.$s."</option>\n";
602: }
603: $Str .= "</select>\n";
604: }
605:
606:
607:
608:
609: sub DisplayClasslist {
610: my ($r)=@_;
611: &Apache::lonhtmlcommon::add_breadcrumb
612: ({text=>'Select One Student'});
613: #
614: # Output some of the standard interface components
615: my $Str;
616: $Str .= &Apache::lonhtmlcommon::breadcrumbs('Select One Student');
617: $Str .= '<p><table cellspacing="5">'."\n";
618: $Str .= '<tr>';
619: $Str .= '<th align="center"><b>'.&mt('Sections').'</b></th>';
620: $Str .= '<th align="center"><b>'.&mt('Groups').'</b></th>';
621: $Str .= '<th align="center"><b>'.&mt('Access Status').'</b></th>';
622: $Str .= '</tr>'.$/;
623: $Str .= '<tr>';
624: $Str .= '<td>'.
625: &Apache::lonstatistics::SectionSelect('Section','multiple',5).
626: '</td>';
627: $Str .= '<td>'.
628: &Apache::lonstatistics::GroupSelect('Group','multiple',5).
629: '</td>';
630: $Str .= '<td>'.
631: &Apache::lonhtmlcommon::StatusOptions(undef,undef,5).
632: '</td>';
633:
634: $Str .= '</tr>'.$/;
635: $Str .= '</table></p>';
636: $Str .= '<input type="submit" name="selectstudent" value="'.
637: &mt('Update Display').'" />';
638: $r->print($Str);
639: $r->rflush();
640: #
641: my @Fields = ('fullname','username','domain','id','section','status','groups');
642: #
643: $Str = '';
644: my @selected_sections = &get_selected_sections();
645: if (! @Students) {
646: if ($selected_sections[0] eq 'all') {
647: if (lc($env{'form.Status'}) eq 'active') {
648: $Str .= '<p class="LC_info">'.
649: &mt('There are no currently enrolled students in the course.').
650: '</p>';
651: } elsif (lc($env{'form.Status'}) eq 'expired') {
652: $Str .= '<p class="LC_info">'.
653: &mt('There are no previously enrolled students in the course.').
654: '</p>';
655: } elsif (lc($env{'form.Status'}) eq 'future') {
656: $Str .= '<p class="LC_info">'.
657: &mt('There are no students with future access in the course.').
658: '</p>';
659: } else { # 'any' and any others
660: $Str .= '<p class="LC_info">'.
661: &mt('There are no students in the course.').
662: '</p>';
663: }
664: } else {
665: if (lc($env{'form.Status'}) eq 'active') {
666: $Str .= '<p class="LC_info">'.
667: &mt('There are no currently enrolled students in the selected sections.').
668: '</p>';
669: } elsif (lc($env{'form.Status'}) eq 'expired') {
670: $Str .= '<p class="LC_info">'.
671: &mt('There are no previously enrolled students in the selected sections.').
672: '</p>';
673: } elsif (lc($env{'form.Status'}) eq 'future') {
674: $Str .= '<p class="LC_info">'.
675: &mt('There are no students with future access in the selected sections.').
676: '</p>';
677: } else { # 'any' and any others
678: $Str .= '<p class="LC_info">'.
679: &mt('There are no students in the selected sections.').
680: '</p>';
681: }
682: }
683: $Str.= '<p>'
684: .'<a href="/adm/statistics?reportSelected=student_assessment">'
685: .&mt('Return to the chart').'</a>'
686: .'</p>';
687: $r->print($Str);
688: $r->rflush();
689: return;
690: }
691:
692: $Str .= '<h2>'.&mt('Select One Student').'</h2>'
693: .'<p>'.&mt("Click on a student's name or username to view their chart").'</p>'
694: .&Apache::loncommon::start_data_table()
695: .&Apache::loncommon::start_data_table_header_row();
696: foreach my $field (@Fields) {
697: $Str .= '<th><a href="/adm/statistics?'.
698: 'reportSelected=student_assessment&'.
699: 'selectstudent=1&'.
700: 'sort='.$field.'">'.&mt($field).
701: '</a></th>';
702: }
703: $Str .= &Apache::loncommon::end_data_table_header_row();
704: #
705: foreach my $student (@Students) { # @Students is a package variable
706: my $sname = $student->{'username'}.':'.$student->{'domain'};
707: $Str .= &Apache::loncommon::start_data_table_row();
708: #
709: foreach my $field (@Fields) {
710: $Str .= '<td>';
711: if ($field eq 'fullname' || $field eq 'username') {
712: $Str .= '<a href="/adm/statistics?reportSelected=';
713: $Str .= &escape('student_assessment');
714: $Str .= '&sort='.&escape($env{'form.sort'});
715: $Str .= '&SelectedStudent=';
716: $Str .= &escape($sname).'">';
717: $Str .= $student->{$field}.' ';
718: $Str .= '</a>';
719: } elsif ($field eq 'status') {
720: $Str .= &mt($student->{$field});
721: } else {
722: $Str .= $student->{$field};
723: }
724: $Str .= '</td>';
725: }
726: $Str .= &Apache::loncommon::end_data_table_row();
727: }
728: $Str .= &Apache::loncommon::end_data_table();
729: #
730: $r->print($Str);
731: $r->rflush();
732: #
733: return;
734: }
735:
736:
737:
738: sub CreateMainMenu {
739: #
740: # Define menu data
741: my @reports = (
742: {categorytitle => 'Statistics and Analyses',
743: items => [
744: {url => '/adm/statistics?reportSelected=problem_statistics',
745: permission => 'F',
746: icon => 'document-open.png',
747: linktext => ('Overall Problem Statistics'),
748: linktitle => ('Student performance statistics on all problems.')},
749:
750: {url => '/adm/statistics?reportSelected=problem_analysis',
751: permission => 'F',
752: icon => 'edit-find.png',
753: linktext => ('Detailed Problem Analysis'),
754: linktitle => ('Detailed statistics and graphs of student performance on problems.')},
755: ]},
756: {categorytitle => 'Plots',
757: items => [
758: {url => '/adm/statistics?reportSelected=submissiontime_analysis',
759: permission => 'F',
760: icon => 'subtimpl.png',
761: linktext => ('Submission Time Plots'),
762: linktitle => ('Display and analysis of submission times on assessments.')},
763:
764: {url => '/adm/statistics?reportSelected=correct_problems_plot',
765: permission => 'F',
766: icon => 'coprplot.png',
767: linktext => ('Correct Problems Plot'),
768: linktitle => ('Display a histogram of student performance in the course.')},
769: ]},
770: {categorytitle => 'Reports',
771: items => [
772: {url => '/adm/statistics?reportSelected=student_submission_reports',
773: permission => 'F',
774: icon => 'edit-copy.png',
775: linktext => ('Student Submission Reports'),
776: linktitle => ('Prepare reports of student submissions.')},
777:
778: {url => '/adm/statistics?reportSelected=survey_reports',
779: permission => 'F',
780: icon => 'docs.png',
781: linktext => ('Survey Reports'),
782: linktitle => ('Prepare reports on survey results.')},
783: ]});
784:
785: return &Apache::lonhtmlcommon::generate_menu(@reports);
786:
787: }
788:
789:
790:
791: sub handler {
792: my $r=shift;
793: my $c = $r->connection();
794: #
795: # Check for overloading
796: my $loaderror=&Apache::lonnet::overloaderror($r);
797: if ($loaderror) { return $loaderror; }
798: $loaderror=
799: &Apache::lonnet::overloaderror($r,
800: $env{'course.'.$env{'request.course.id'}.'.home'});
801: if ($loaderror) { return $loaderror; }
802: #
803: # Check for access
804: if (! &Apache::lonnet::allowed('vgr',$env{'request.course.id'})) {
805: $env{'user.error.msg'}=
806: $r->uri.":vgr:0:0:Cannot view grades for complete course";
807: if (! &Apache::lonnet::allowed('vgr',
808: $env{'request.course.id'}.'/'.$env{'request.course.sec'})) {
809: $env{'user.error.msg'}=
810: $r->uri.":vgr:0:0:Cannot view grades with given role";
811: return HTTP_NOT_ACCEPTABLE;
812: }
813: }
814: #
815: # Send the header
816: &Apache::loncommon::no_cache($r);
817: &Apache::loncommon::content_type($r,'text/html');
818: $r->send_http_header;
819: if ($r->header_only) { return OK; }
820: #
821: # Extract form elements from query string
822: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
823: ['sort','reportSelected',
824: 'SelectedStudent']);
825: #
826: # Give the LON-CAPA page header
827: my $style = <<ENDSTYLE;
828: <style type="text/css">
829: ul.sub_studentans { list-style-type: none }
830: ul.sub_correctans { list-style-type: none }
831: tr.even { background-color: \#CCCCCC }
832: td.essay { border: 1px solid gray; }
833: </style>
834: ENDSTYLE
835:
836: $r->print(&Apache::loncommon::start_page('Course Statistics and Charts',
837: $style));
838: $r->rflush();
839: #
840: # Either print out a menu for them or send them to a report
841: &Apache::lonhtmlcommon::clear_breadcrumbs();
842: &Apache::lonhtmlcommon::add_breadcrumb({href=>'/adm/statistics',
843: title=>'Statistics',
844: text =>'Statistics',
845: faq=>139,
846: bug=>'Statistics and Charts'});
847: if (! exists($env{'form.reportSelected'}) ||
848: $env{'form.reportSelected'} eq '') {
849: $r->print(&Apache::lonhtmlcommon::breadcrumbs('Statistics Main Page').
850: &CreateMainMenu());
851: } else {
852: #
853: if (! &Apache::lonmysql::verify_sql_connection()) {
854: my $serveradmin = $r->dir_config('lonAdmEMail');
855: $r->print('<h2 class="LC_error">'.
856: &mt('Unable to connect to database!').
857: '</h2>');
858: $r->print('<p>'
859: .&mt('Please notify the server administrator [_1]',
860: ,'<b>'.$serveradmin.'</b>')
861: .'</p>');
862: $r->print('<p>'.
863: &mt('Course Statistics and Charts cannot be '.
864: 'retrieved until the database is restarted. '.
865: 'Your data is intact but cannot be displayed '.
866: 'at this time.').'</p>');
867: $r->print(&Apache::loncommon::end_page());
868: return;
869: }
870: #
871: # Clean out the caches
872: if (exists($env{'form.ClearCache'})) {
873: &Apache::loncoursedata::delete_caches($env{'requres.course.id'});
874: }
875: #
876: # Begin form output
877: $r->print('<form name="Statistics" ');
878: $r->print('method="post" action="/adm/statistics">');
879: $r->rflush();
880: #
881: my $GoToPage = $env{'form.reportSelected'};
882: #
883: $r->print('<input type="hidden" name="reportSelected" value="'.
884: $GoToPage.'">');
885: if($GoToPage eq 'activitylog') {
886: # &Apache::lonproblemstatistics::Activity();
887: } elsif($GoToPage eq 'problem_statistics') {
888: &Apache::lonhtmlcommon::add_breadcrumb
889: ({href=>'/adm/statistics?reportselected=problem_statistics',
890: text=>'Overall Problem Statistics'});
891: &Apache::lonproblemstatistics::BuildProblemStatisticsPage($r,$c);
892: } elsif($GoToPage eq 'problem_analysis') {
893: &Apache::lonhtmlcommon::add_breadcrumb
894: ({href=>'/adm/statistics?reportselected=problem_analysis',
895: text=>'Detailed Problem Analysis'});
896: &Apache::lonproblemanalysis::BuildProblemAnalysisPage($r,$c);
897: } elsif($GoToPage eq 'submissiontime_analysis') {
898: &Apache::lonhtmlcommon::add_breadcrumb
899: ({href=>
900: '/adm/statistics?reportselected=submissiontime_analysis',
901: text=>'Submission Time Plots'});
902: &Apache::lonsubmissiontimeanalysis::BuildSubmissionTimePage($r,$c);
903: } elsif($GoToPage eq 'student_submission_reports') {
904: &Apache::lonhtmlcommon::add_breadcrumb
905: ({href=>
906: '/adm/statistics?reportselected=student_submission_reports',
907: text=>'Student Submission Reports'});
908: &Apache::lonstudentsubmissions::BuildStudentSubmissionsPage($r,$c);
909: } elsif($GoToPage eq 'survey_reports') {
910: &Apache::lonhtmlcommon::add_breadcrumb
911: ({href=>
912: '/adm/statistics?reportselected=survey_reports',
913: text=>'Survey Reports'});
914: &Apache::lonsurveyreports::BuildSurveyReportsPage($r,$c);
915: } elsif($GoToPage eq 'correct_problems_plot') {
916: &Apache::lonhtmlcommon::add_breadcrumb
917: ({href=>'/adm/statistics?reportselected=correct_problems_plot',
918: text=>'Correct Problems Plot'});
919: &Apache::loncorrectproblemplot::BuildCorrectProblemsPage($r,$c);
920: } elsif($GoToPage eq 'student_assessment') {
921: &Apache::lonhtmlcommon::clear_breadcrumbs();
922: &Apache::lonhtmlcommon::add_breadcrumb
923: ({href=>'/adm/statistics?reportselected=student_assessment',
924: text=>'Chart'});
925: &Apache::lonstudentassessment::BuildStudentAssessmentPage($r,$c);
926: } elsif($GoToPage eq 'grading_analysis') {
927: &Apache::lonhtmlcommon::add_breadcrumb
928: ({href=>'/adm/statistics?reportselected=grading_anaylsis',
929: text=>'Grading Analysis'});
930: &Apache::longradinganalysis::build_grading_analysis_page($r,$c);
931: }
932: #
933: $r->print("</form>\n");
934: }
935: $r->print(&Apache::loncommon::end_page());
936: $r->rflush();
937: #
938: return OK;
939: }
940:
941: 1;
942:
943: __END__
944:
945: =pod
946:
947: =head1 NAME
948:
949: lonstatistics
950:
951: =head1 SYNOPSIS
952:
953: Main handler for statistics and chart.
954:
955: This is part of the LearningOnline Network with CAPA project
956: described at http://www.lon-capa.org.
957:
958:
959: =head1 PACKAGE VARIABLES
960:
961: =over
962:
963: =item @FullClasslist The full classlist
964:
965: =item @Students The students we are concerned with for this invocation
966:
967: =item @Sections The sections available in this class
968:
969: =item @Groups The groups available in the class
970:
971: =item $curr_student The student currently being examined
972:
973: =item $prev_student The student previous in the classlist
974:
975: =item $next_student The student next in the classlist
976:
977: =back
978:
979: =head1 SUBROUTINES
980:
981: =over
982:
983: =item &clear_classlist_variables()
984:
985: undef the following package variables:
986:
987: =over 4
988:
989: =item * @FullClasslist
990:
991: =item * @Students
992:
993: =item * @Sections
994:
995: =item * @Groups
996:
997: =item * %StudentData
998:
999: =item * @StudentDataOrder
1000:
1001: =item * @SelectedStudentData
1002:
1003: =item * $curr_student
1004:
1005: =item * $prev_student
1006:
1007: =item * $next_student
1008:
1009: =back
1010:
1011: =item &PrepareClasslist()
1012:
1013: Build up the classlist information. The classlist information is kept in
1014: the following package variables:
1015:
1016: =over 4
1017:
1018: =item * @FullClasslist
1019:
1020: =item * @Students
1021:
1022: =item * @Sections
1023:
1024: =item * @Groups
1025:
1026: =item * %StudentData
1027:
1028: =item * @SelectedStudentData
1029:
1030: =item * $curr_student
1031:
1032: =item * $prev_student
1033:
1034: =item * $next_student
1035:
1036: =back
1037:
1038: $curr_student, $prev_student, and $next_student may not be defined, depending
1039: upon the calling context.
1040:
1041: =item get_selected_sections()
1042:
1043: Returns an array of the selected sections
1044:
1045: =item get_selected_groups()
1046:
1047: Returns an array of the selected groups
1048:
1049: =item §ion_and_enrollment_description()
1050:
1051: Returns a string describing the currently selected section(s), group(s) and
1052: access status.
1053:
1054: Inputs: mode = 'plaintext' or 'localized' (defaults to 'localized')
1055: 'plaintext' is used for example in Excel spreadsheets.
1056: Returns: scalar description string.
1057:
1058: =item section_or_group_text()
1059:
1060: =item get_students()
1061:
1062: Returns a list of the selected students
1063:
1064: =item ¤t_student()
1065:
1066: Returns a pointer to a hash containing data about the currently
1067: selected student.
1068:
1069: =item &previous_student()
1070:
1071: Returns a pointer to a hash containing data about the student prior
1072: in the list of students. Or something.
1073:
1074: =item &next_student()
1075:
1076: Returns a pointer to a hash containing data about the next student
1077: to be viewed.
1078:
1079: =item &StudentDataSelect($elementname,$status,$numvisible,$selected)
1080:
1081: Returns html for a selection box allowing the user to choose one (or more)
1082: of the fields of student data available (fullname, username, id, section, etc)
1083:
1084: =over 4
1085:
1086: =item * $elementname The name of the HTML form element
1087:
1088: =item * $status 'multiple' or 'single' selection box
1089:
1090: =item * $numvisible The number of options to be visible
1091:
1092: =back
1093:
1094: =item &get_selected_maps($elementname)
1095:
1096: Input: Name of the <select> form element used to specify the maps.
1097:
1098: Returns: Array of symbs of selected maps or the description 'all'.
1099: If form.$elementname does not exist, 'all' is returned.
1100:
1101: =item &selected_sequences_with_assessments()
1102:
1103: Retrieve the sequences which were selected by the user to show.
1104:
1105: Input: $mode: scalar. Either 'selected' or 'all'. If not specified,
1106: 'selected' is used.
1107:
1108: Returns: an array containing a navmap object and navmap resources,
1109: or an array containing a scalar with an error message.
1110:
1111: =item &map_select($elementname,$status,$numvisible,$restriction)
1112:
1113: Returns html for a selection box allowing the user to choose one (or more)
1114: of the sequences in the course. The values of the sequences are the symbs.
1115: If the top sequence is selected, the value 'top' will result.
1116:
1117: =over 4
1118:
1119: =item * $elementname The name of the HTML form element
1120:
1121: =item * $status 'multiple' or 'single' selection box
1122:
1123: =item * $numvisible The number of options to be visible
1124:
1125: =back
1126:
1127: =item &SectionSelect($elementname,$status,$numvisible)
1128:
1129: Returns html for a selection box allowing the user to choose one (or more)
1130: of the sections in the course.
1131:
1132: Uses the package variables @Sections
1133:
1134: =over 4
1135:
1136: =item * $elementname The name of the HTML form element
1137:
1138: =item * $status 'multiple' or 'single' selection box
1139:
1140: =item * $numvisible The number of options to be visible
1141:
1142: =back
1143:
1144: =item &GroupSelect($elementname,$status,$numvisible)
1145:
1146: Returns html for a selection box allowing the user to choose one (or more)
1147: of the groups in the course.
1148:
1149: Uses the package variables @Groups
1150:
1151: =over 4
1152:
1153: =item * $elementname The name of the HTML form element
1154:
1155: =item * $status 'multiple' or 'single' selection box
1156:
1157: =item * $numvisible The number of options to be visible
1158:
1159: =back
1160:
1161: =item CreateMainMenu()
1162:
1163: =back
1164:
1165: =cut
1166:
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