1: # The LearningOnline Network with CAPA
2: #
3: # $Id: lonstatistics.pm,v 1.156.2.7 2016/08/14 16:38:05 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 Apache::lonquickgrades();
68: use LONCAPA;
69:
70: #
71: # Classlist variables
72: #
73: my $curr_student;
74: my $prev_student;
75: my $next_student;
76:
77:
78: sub clear_classlist_variables {
79: undef(@FullClasslist);
80: undef(@Students);
81: undef(@Sections);
82: undef(@Groups);
83: undef(%StudentData);
84: undef(@SelectedStudentData);
85: undef($curr_student);
86: undef($prev_student);
87: undef($next_student);
88: }
89:
90:
91: sub PrepareClasslist {
92: my %Sections;
93: &clear_classlist_variables();
94: #
95: # Retrieve the classlist
96: my $cid = $env{'request.course.id'};
97: my $cdom = $env{'course.'.$cid.'.domain'};
98: my $cnum = $env{'course.'.$cid.'.num'};
99: my ($classlist,$field_names) = &Apache::loncoursedata::get_classlist($cdom,
100: $cnum);
101: my @selected_sections = &get_selected_sections();
102: my @selected_groups = &get_selected_groups();
103: #
104: # Deal with instructors with restricted section access
105: if ($env{'request.course.sec'} !~ /^\s*$/) {
106: @selected_sections = ($env{'request.course.sec'});
107: }
108: #
109: # Set up %StudentData
110: @StudentDataOrder = qw/fullname username domain id section status groups comments/;
111: foreach my $field (@StudentDataOrder) {
112: $StudentData{$field}->{'title'} = &mt($field);
113: $StudentData{$field}->{'base_width'} = length(&mt($field));
114: $StudentData{$field}->{'width'} =
115: $StudentData{$field}->{'base_width'};
116: }
117: #
118: # get the status requested
119: $enrollment_status = 'Active';
120: $enrollment_status = $env{'form.Status'} if (exists($env{'form.Status'}));
121: #
122: # Get groupmembership
123: my ($classgroups,$studentgroups);
124: my %curr_groups = &Apache::longroup::coursegroups($cdom,$cnum);
125: if (%curr_groups) {
126: ($classgroups,$studentgroups) =
127: &Apache::loncoursedata::get_group_memberships($classlist,
128: $field_names,
129: $cdom,$cnum);
130: }
131: my $now = time;
132:
133: # Process the classlist
134: while (my ($student,$student_data) = each (%$classlist)) {
135: my $studenthash = ();
136: for (my $i=0; $i< scalar(@$field_names);$i++) {
137: my $field = $field_names->[$i];
138: # Store the data
139: $studenthash->{$field}=$student_data->[$i];
140: # Keep track of the width of the fields
141: next if (! exists($StudentData{$field}));
142: my $length = length($student_data->[$i]);
143: if ($StudentData{$field}->{'width'} < $length) {
144: $StudentData{$field}->{'width'} = $length;
145: }
146: }
147: my @studentsgroups = &Apache::loncoursedata::get_students_groups
148: ($student,$enrollment_status,
149: $classgroups);
150: if (@studentsgroups) {
151: $studenthash->{'groups'} = join(', ',@studentsgroups);
152: $studenthash->{'groupref'} = \@studentsgroups;
153: } else {
154: $studenthash->{'groups'} = 'none';
155: $studenthash->{'groupref'} = [];
156: }
157: push (@FullClasslist,$studenthash);
158: #
159: # Build up a list of sections
160: my $section = $studenthash->{'section'};
161: if (! defined($section) || $section =~/^\s*$/ || $section == -1) {
162: $studenthash->{'section'} = 'none';
163: $section = $studenthash->{'section'};
164: }
165: $Sections{$section}++;
166: #
167: # Only put in the list those students we are interested in
168: foreach my $sect (@selected_sections) {
169: if ( (($sect eq 'all') ||
170: ($section eq $sect)) &&
171: (($studenthash->{'status'} eq $enrollment_status) ||
172: ($enrollment_status eq 'Any'))
173: ){
174: my $groupcheck = 0;
175: if (grep(/^all$/,@selected_groups)) {
176: push(@Students,$studenthash);
177: last;
178: } elsif (grep(/^none$/,@selected_groups)) {
179: if ($studenthash->{'groups'} eq 'none') {
180: push(@Students,$studenthash);
181: last;
182: }
183: } else {
184: foreach my $group (@selected_groups) {
185: if (grep(/^$group$/,@studentsgroups)) {
186: push(@Students,$studenthash);
187: $groupcheck = 1;
188: last;
189: }
190: }
191: if ($groupcheck) {
192: last;
193: }
194: }
195: }
196: }
197: }
198: #
199: # Put the consolidated section data in the right place
200: if ($env{'request.course.sec'} !~ /^\s*$/) {
201: @Sections = ($env{'request.course.sec'});
202: } else {
203: @Sections = sort {
204: if ($a == $a && $b == $b ) { return $a <=> $b; }
205: return $a cmp $b;
206: } keys(%Sections);
207:
208: unshift(@Sections,'all'); # Put 'all' at the front of the list
209: }
210: # Sort the groups
211: @Groups = sort {$a cmp $b} keys(%{$studentgroups});
212: unshift(@Groups,'all'); # Put 'all' at the front of the list
213:
214: #
215: # Sort the Students
216: my $sortby = 'fullname';
217: $sortby = $env{'form.sort'} if (exists($env{'form.sort'}));
218: my @TmpStudents = sort { lc($a->{$sortby}) cmp lc($b->{$sortby}) ||
219: lc($a->{'fullname'}) cmp lc($b->{'fullname'}) ||
220: lc($a->{'username'}) cmp lc($b->{'username'}) } @Students;
221: @Students = @TmpStudents;
222: #
223: # Now deal with that current student thing....
224: $curr_student = undef;
225: if (exists($env{'form.SelectedStudent'})) {
226: my ($current_uname,$current_dom) =
227: split(':',$env{'form.SelectedStudent'});
228: my $i;
229: for ($i = 0; $i<=$#Students; $i++) {
230: next if (($Students[$i]->{'username'} ne $current_uname) ||
231: ($Students[$i]->{'domain'} ne $current_dom));
232: $curr_student = $Students[$i];
233: last; # If we get here, we have our student.
234: }
235: if (defined($curr_student)) {
236: if ($i == 0) {
237: $prev_student = undef;
238: } else {
239: $prev_student = $Students[$i-1];
240: }
241: if ($i == $#Students) {
242: $next_student = undef;
243: } else {
244: $next_student = $Students[$i+1];
245: }
246: }
247: }
248: #
249: if (exists($env{'form.StudentData'})) {
250: @SelectedStudentData =
251: &Apache::loncommon::get_env_multiple('form.StudentData');
252: } else {
253: @SelectedStudentData = ('username');
254: }
255: foreach (@SelectedStudentData) {
256: if ($_ eq 'all') {
257: @SelectedStudentData = ('all');
258: last;
259: }
260: }
261: #
262: return;
263: }
264:
265:
266: sub get_selected_sections {
267: my @selected_sections =
268: &Apache::loncommon::get_env_multiple('form.Section');
269: @selected_sections = ('all') if (! @selected_sections);
270: foreach (@selected_sections) {
271: if ($_ eq 'all') {
272: @selected_sections = ('all');
273: }
274: }
275: #
276: # Deal with instructors with restricted section access
277: if ($env{'request.course.sec'} !~ /^\s*$/) {
278: @selected_sections = ($env{'request.course.sec'});
279: }
280: return @selected_sections;
281: }
282:
283:
284: sub get_selected_groups {
285: my @selected_groups =
286: &Apache::loncommon::get_env_multiple('form.Group');
287: @selected_groups = ('all') if (! @selected_groups);
288: foreach my $grp (@selected_groups) {
289: if ($grp eq 'all') {
290: @selected_groups = ('all');
291: last;
292: }
293: }
294: return @selected_groups;
295: }
296:
297:
298:
299: sub section_and_enrollment_description {
300: my ($mode) = @_;
301: if (! defined($mode)) { $mode = 'localized'; }
302: my @sections = &Apache::lonstatistics::get_selected_sections();
303: my @groups = &Apache::lonstatistics::get_selected_groups();
304: my $description;
305: if ($mode eq 'localized') {
306: $description = &mt('Unable to determine section, groups and access status');
307: } elsif ($mode eq 'plaintext') {
308: $description = 'Unable to determine section, groups and access status';
309: } else {
310: $description = 'Bad parameter passed to lonstatistics::section_and_enrollment_description';
311: &Apache::lonnet::logthis($description);
312: }
313: $description = §ion_or_group_text($mode,'section',@sections).
314: ' '.§ion_or_group_text($mode,'group',@groups);
315: if ($mode eq 'localized') {
316: $description .= ' '.&mt($env{'form.Status'}.' access status.');
317: } elsif ($mode eq 'plaintext') {
318: $description .= ' '.$env{'form.Status'}.' access status.';
319: }
320: return $description;
321: }
322:
323:
324:
325:
326: sub section_or_group_text {
327: my ($mode,$type,@items) = @_;
328: my $text;
329: my %phrases = ();
330: %{$phrases{'section'}} = (
331: single => 'Section',
332: all => 'All sections',
333: plural => 'Sections',
334: );
335: %{$phrases{'group'}} = (
336: single => 'Group',
337: all => 'All groups',
338: plural => 'Groups',
339: );
340: if (scalar(@items) == 1 && $items[0] ne 'all') {
341: if ($mode eq 'localized') {
342: $text = &mt($phrases{$type}{single}.' [_1].',$items[0]);
343: } elsif ($mode eq 'plaintext') {
344: $text = $phrases{$type}{single}.' '.$items[0].'.';
345:
346: }
347: } elsif (scalar(@items) && $items[0] eq 'all') {
348: if ($mode eq 'localized') {
349: $text = &mt($phrases{$type}{all}.'.');
350: } elsif ($mode eq 'plaintext') {
351: $text = $phrases{$type}{all}.'.';
352: }
353: } elsif (scalar(@items)) {
354: my $lastitem = pop(@items);
355: if ($mode eq 'localized') {
356: $text = &mt($phrases{$type}{plural}.' [_1] and [_2].',
357: join(', ',@items),$lastitem);
358: } elsif ($mode eq 'plaintext') {
359: $text = $phrases{$type}{plural}.' '.join(', ',@items).' and '.
360: $lastitem.'.';
361: }
362: }
363: return $text;
364: }
365:
366:
367: sub get_students {
368: if (! @Students) {
369: &PrepareClasslist();
370: }
371: return @Students;
372: }
373:
374:
375:
376: sub current_student {
377: return $curr_student;
378: }
379:
380:
381:
382: sub previous_student {
383: return $prev_student;
384: }
385:
386:
387:
388: sub next_student {
389: return $next_student;
390: }
391:
392:
393:
394: sub StudentDataSelect {
395: my ($elementname,$status,$numvisible)=@_;
396: if ($numvisible < 1) {
397: return;
398: }
399: #
400: # Build the form element
401: my $Str = "\n";
402: $Str .= '<select name="'.$elementname.'" ';
403: if ($status ne 'single') {
404: $Str .= 'multiple="multiple" ';
405: }
406: $Str .= 'size="'.$numvisible.'" >'."\n";
407: #
408: # Deal with 'all'
409: $Str .= ' <option value="all"';
410: foreach (@SelectedStudentData) {
411: if ($_ eq 'all') {
412: $Str .= ' selected="selected"';
413: last;
414: }
415: }
416: $Str .= '>'.&mt('all')."</option>\n";
417: #
418: # Loop through the student data fields
419: foreach my $item (@StudentDataOrder) {
420: $Str .= ' <option value="'.$item.'"';
421: foreach (@SelectedStudentData) {
422: if ($item eq $_ ) {
423: $Str .= ' selected="selected"';
424: last;
425: }
426: }
427: $Str .= '>'.&mt($item)."</option>\n";
428: }
429: $Str .= "</select>\n";
430: return $Str;
431: }
432:
433:
434:
435: sub get_selected_maps {
436: my ($elementname) = @_;
437: my @selected_maps =
438: &Apache::loncommon::get_env_multiple('form.'.$elementname);
439: @selected_maps = ('all') if (! @selected_maps);
440: foreach my $map (@selected_maps) {
441: if ($map eq 'all') {
442: @selected_maps = ('all');
443: last;
444: }
445: }
446: return @selected_maps;
447: }
448:
449:
450:
451:
452: sub selected_sequences_with_assessments {
453: my ($mode) = @_;
454: $mode = 'selected' if (! defined($mode));
455: my $navmap = Apache::lonnavmaps::navmap->new();
456: if (!defined($navmap)) {
457: return ('Can not open Coursemap');
458: }
459: #
460: my @sequences = $navmap->retrieveResources(undef,
461: sub { shift->is_map(); },1,0,1);
462: my $toplevelseq = $navmap->getById('0.0');
463: if (!grep(/^\Q$toplevelseq\E$/,@sequences)) {
464: unshift(@sequences,$toplevelseq);
465: }
466:
467: my @sequences_with_assessments;
468: foreach my $sequence (@sequences) {
469: if ($navmap->hasResource($sequence,sub { shift->is_problem(); },0,1)){
470: push(@sequences_with_assessments,$sequence);
471: }
472: }
473: #
474: my @sequences_to_show;
475: foreach my $sequence (@sequences_with_assessments) {
476: if ($mode eq 'all') {
477: push (@sequences_to_show,$sequence);
478: } elsif ($mode eq 'selected') {
479: foreach my $map_symb (&get_selected_maps('Maps')) {
480: if ($sequence->symb eq $map_symb || $map_symb eq 'all'){
481: push (@sequences_to_show,$sequence);
482: last; # Only put it in once
483: }
484: }
485: }
486:
487: }
488: return $navmap,@sequences_to_show;
489: }
490:
491:
492: sub map_select {
493: my ($elementname,$status,$numvisible)=@_;
494: if ($numvisible < 1) {
495: return;
496: }
497: #
498: # Set up array of selected items
499: my @selected_maps = &get_selected_maps($elementname);
500: #
501: # Build the form element
502: my $form = "\n";
503: $form .= '<select name="'.$elementname.'" ';
504: if ($status ne 'single') {
505: $form .= 'multiple="multiple" ';
506: }
507: $form .= 'size="'.$numvisible.'" >'."\n";
508: #
509: # Put in option for 'all'
510: $form .= ' <option value="all"';
511: if ($selected_maps[0] eq 'all') {
512: $form .= ' selected="selected"';
513: }
514: $form .= '>'.&mt('all').'</option>'."\n";
515: #
516: # Loop through the sequences
517: my @sequences = &selected_sequences_with_assessments('all');
518: my $navmap;
519: if (!ref($sequences[0])) {
520: return $sequences[0];
521: } else {
522: $navmap = shift(@sequences);
523: }
524: foreach my $seq (@sequences){
525: $form .= ' <option value="'.$seq->symb.'"';
526: foreach (@selected_maps) {
527: if ($seq->symb eq $_) {
528: $form .= ' selected="selected"';
529: last;
530: }
531: }
532: $form .= '>'.$seq->compTitle."</option>\n";
533: }
534: $form .= "</select>\n";
535: return $form;
536: }
537:
538:
539: sub SectionSelect {
540: my ($elementname,$status,$numvisible)=@_;
541: if ($numvisible < 1) {
542: return;
543: }
544: #
545: # Make sure we have the data we need to continue
546: if (! @Sections) {
547: &PrepareClasslist()
548: }
549: #
550: # Make sure course's student table is up to date
551: if (@Sections) {
552: &Apache::loncoursedata::ensure_current_sections();
553: }
554: #
555: # Build the form element
556: my $Str = "\n";
557: $Str .= '<select name="'.$elementname.'" ';
558: if ($status ne 'single') {
559: $Str .= 'multiple="multiple" ';
560: }
561: $Str .= 'size="'.$numvisible.'" >'."\n";
562: #
563: # Loop through the sequences
564: foreach my $s (@Sections) {
565: $Str .= ' <option value="'.$s.'"';
566: foreach (&get_selected_sections()) {
567: if ($s eq $_) {
568: $Str .= ' selected="selected"';
569: last;
570: }
571: }
572: $Str .= '>'.$s."</option>\n";
573: }
574: $Str .= "</select>\n";
575: return $Str;
576: }
577:
578:
579: sub GroupSelect {
580: my ($elementname,$status,$numvisible)=@_;
581: if ($numvisible < 1) {
582: return;
583: }
584: #
585: # Make sure we have the data we need to continue
586: if (! @Groups) {
587: &PrepareClasslist();
588: }
589: #
590: # Make sure course's groupnames and studentgroups tables
591: # are up to date.
592: #
593: if (@Groups) {
594: &Apache::loncoursedata::ensure_current_groups();
595: &Apache::loncoursedata::ensure_current_students_groups();
596: }
597: #
598: # Build the form element
599: my $Str = "\n";
600: $Str .= '<select name="'.$elementname.'" ';
601: if ($status ne 'single') {
602: $Str .= 'multiple="multiple" ';
603: }
604: $Str .= 'size="'.$numvisible.'" >'."\n";
605: #
606: # Loop through the groups
607: foreach my $s (@Groups) {
608: $Str .= ' <option value="'.$s.'"';
609: foreach my $group (&get_selected_groups()) {
610: if ($s eq $group) {
611: $Str .= ' selected="selected"';
612: last;
613: }
614: }
615: $Str .= '>'.$s."</option>\n";
616: }
617: $Str .= "</select>\n";
618: }
619:
620:
621:
622:
623: sub DisplayClasslist {
624: my ($r)=@_;
625: &Apache::lonhtmlcommon::add_breadcrumb
626: ({text=>'Select One Student'});
627: #
628: # Output some of the standard interface components
629: my $Str;
630: $Str .= &Apache::lonhtmlcommon::breadcrumbs('Select One Student');
631: $Str .= '<table cellspacing="5">'."\n";
632: $Str .= '<tr>';
633: $Str .= '<th align="center"><b>'.&mt('Sections').'</b></th>';
634: $Str .= '<th align="center"><b>'.&mt('Groups').'</b></th>';
635: $Str .= '<th align="center"><b>'.&mt('Access Status').'</b></th>';
636: $Str .= '</tr>'.$/;
637: $Str .= '<tr>';
638: $Str .= '<td>'.
639: &Apache::lonstatistics::SectionSelect('Section','multiple',5).
640: '</td>';
641: $Str .= '<td>'.
642: &Apache::lonstatistics::GroupSelect('Group','multiple',5).
643: '</td>';
644: $Str .= '<td>'.
645: &Apache::lonhtmlcommon::StatusOptions(undef,undef,5).
646: '</td>';
647:
648: $Str .= '</tr>'.$/;
649: $Str .= '</table>';
650: $Str .= '<input type="submit" name="selectstudent" value="'.
651: &mt('Update Display').'" />';
652: $r->print($Str);
653: $r->rflush();
654: #
655: my @Fields = ('fullname','username','domain','id','section','status','groups');
656: #
657: $Str = '';
658: my @selected_sections = &get_selected_sections();
659: if (! @Students) {
660: if ($selected_sections[0] eq 'all') {
661: if (lc($env{'form.Status'}) eq 'active') {
662: $Str .= '<p class="LC_info">'.
663: &mt('There are no currently enrolled students in the course.').
664: '</p>';
665: } elsif (lc($env{'form.Status'}) eq 'expired') {
666: $Str .= '<p class="LC_info">'.
667: &mt('There are no previously enrolled students in the course.').
668: '</p>';
669: } elsif (lc($env{'form.Status'}) eq 'future') {
670: $Str .= '<p class="LC_info">'.
671: &mt('There are no students with future access in the course.').
672: '</p>';
673: } else { # 'any' and any others
674: $Str .= '<p class="LC_info">'.
675: &mt('There are no students in the course.').
676: '</p>';
677: }
678: } else {
679: if (lc($env{'form.Status'}) eq 'active') {
680: $Str .= '<p class="LC_info">'.
681: &mt('There are no currently enrolled students in the selected sections.').
682: '</p>';
683: } elsif (lc($env{'form.Status'}) eq 'expired') {
684: $Str .= '<p class="LC_info">'.
685: &mt('There are no previously enrolled students in the selected sections.').
686: '</p>';
687: } elsif (lc($env{'form.Status'}) eq 'future') {
688: $Str .= '<p class="LC_info">'.
689: &mt('There are no students with future access in the selected sections.').
690: '</p>';
691: } else { # 'any' and any others
692: $Str .= '<p class="LC_info">'.
693: &mt('There are no students in the selected sections.').
694: '</p>';
695: }
696: }
697: $Str.= '<p>'
698: .'<a href="/adm/statistics?reportSelected=student_assessment">'
699: .&mt('Return to the chart').'</a>'
700: .'</p>';
701: $r->print($Str);
702: $r->rflush();
703: return;
704: }
705:
706: $Str .= '<h2>'.&mt('Select One Student').'</h2>'
707: .'<p>'.&mt("Click on a student's name or username to view their chart.").'</p>'
708: .&Apache::loncommon::start_data_table()
709: .&Apache::loncommon::start_data_table_header_row();
710: foreach my $field (@Fields) {
711: $Str .= '<th><a href="/adm/statistics?'.
712: 'reportSelected=student_assessment&'.
713: 'selectstudent=1&'.
714: 'sort='.$field.'">'.&mt($field).
715: '</a></th>';
716: }
717: $Str .= &Apache::loncommon::end_data_table_header_row();
718: #
719: foreach my $student (@Students) { # @Students is a package variable
720: my $sname = $student->{'username'}.':'.$student->{'domain'};
721: $Str .= &Apache::loncommon::start_data_table_row();
722: #
723: foreach my $field (@Fields) {
724: $Str .= '<td>';
725: if ($field eq 'fullname' || $field eq 'username') {
726: $Str .= '<a href="/adm/statistics?reportSelected=';
727: $Str .= &escape('student_assessment');
728: $Str .= '&sort='.&escape($env{'form.sort'});
729: $Str .= '&SelectedStudent=';
730: $Str .= &escape($sname).'">';
731: $Str .= $student->{$field};
732: $Str .= '</a>';
733: } elsif ($field eq 'status') {
734: $Str .= &mt($student->{$field});
735: } else {
736: if ($student->{$field} eq 'none') {
737: $Str .= &mt('none')
738: } else {
739: $Str .= $student->{$field};
740: }
741: }
742: $Str .= '</td>';
743: }
744: $Str .= &Apache::loncommon::end_data_table_row();
745: }
746: $Str .= &Apache::loncommon::end_data_table();
747: #
748: $r->print($Str);
749: $r->rflush();
750: #
751: return;
752: }
753:
754:
755:
756: sub CreateMainMenu {
757: #
758: # Define menu data
759: my @reports = (
760: {categorytitle => 'Statistics and Analyses',
761: items => [
762: {url => '/adm/statistics?reportSelected=problem_statistics',
763: permission => 'F',
764: icon => 'document-open.png',
765: linktext => ('Overall Problem Statistics'),
766: linktitle => ('Student performance statistics on all problems.')},
767:
768: {url => '/adm/statistics?reportSelected=problem_analysis',
769: permission => 'F',
770: icon => 'prob_ana.png',
771: linktext => ('Detailed Problem Analysis'),
772: linktitle => ('Detailed statistics and graphs of student performance on problems.')},
773: ]},
774: {categorytitle => 'Plots',
775: items => [
776: {url => '/adm/statistics?reportSelected=submissiontime_analysis',
777: permission => 'F',
778: icon => 'subtimpl.png',
779: linktext => ('Submission Time Plots'),
780: linktitle => ('Display and analysis of submission times on assessments.')},
781:
782: {url => '/adm/statistics?reportSelected=correct_problems_plot',
783: permission => 'F',
784: icon => 'coprplot.png',
785: linktext => ('Correct Problems Plot'),
786: linktitle => ('Display a histogram of student performance in the course.')},
787: ]},
788: {categorytitle => 'Reports',
789: items => [
790: {url => '/adm/statistics?reportSelected=student_submission_reports',
791: permission => 'F',
792: icon => 'edit-copy.png',
793: linktext => ('Student Submission Reports'),
794: linktitle => ('Prepare reports of student submissions.')},
795:
796: {url => '/adm/statistics?reportSelected=survey_reports',
797: permission => 'F',
798: icon => 'survey_rep.png',
799: linktext => ('Survey Reports'),
800: linktitle => ('Prepare reports on survey results.')},
801: ]});
802:
803: return &Apache::lonhtmlcommon::generate_menu(@reports);
804:
805: }
806:
807:
808:
809: sub handler {
810: my $r=shift;
811: my $c = $r->connection();
812: #
813: # Check for access
814: if (! &Apache::lonnet::allowed('vgr',$env{'request.course.id'})) {
815: $env{'user.error.msg'}=
816: $r->uri.":vgr:0:0:Cannot view grades for complete course";
817: if (! &Apache::lonnet::allowed('vgr',
818: $env{'request.course.id'}.'/'.$env{'request.course.sec'})) {
819: $env{'user.error.msg'}=
820: $r->uri.":vgr:0:0:Cannot view grades with given role";
821: return HTTP_NOT_ACCEPTABLE;
822: }
823: }
824: #
825: # Send the header
826: &Apache::loncommon::no_cache($r);
827: &Apache::loncommon::content_type($r,'text/html');
828: $r->send_http_header;
829: if ($r->header_only) { return OK; }
830: #
831: # Extract form elements from query string
832: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
833: ['sort','reportSelected',
834: 'SelectedStudent']);
835: #
836: # Give the LON-CAPA page header
837: my $style = <<ENDSTYLE;
838: <style type="text/css">
839: ul.sub_studentans { list-style-type: none }
840: ul.sub_correctans { list-style-type: none }
841: tr.even { background-color: \#CCCCCC }
842: td.essay { border: 1px solid gray; }
843: </style>
844: ENDSTYLE
845:
846: $r->print(&Apache::loncommon::start_page('Course Statistics and Charts',
847: $style));
848: $r->rflush();
849: #
850: # Either print out a menu for them or send them to a report
851: &Apache::lonhtmlcommon::clear_breadcrumbs();
852: &Apache::lonhtmlcommon::add_breadcrumb({href=>'/adm/statistics',
853: title=>'Statistics',
854: text =>'Statistics',
855: faq=>139,
856: bug=>'Statistics and Charts'});
857: if (! exists($env{'form.reportSelected'}) ||
858: $env{'form.reportSelected'} eq '') {
859: $r->print(&Apache::lonhtmlcommon::breadcrumbs('Statistics Main Page').
860: &CreateMainMenu());
861: } else {
862: #
863: if (! &Apache::lonmysql::verify_sql_connection()) {
864: my $serveradmin = $r->dir_config('lonAdmEMail');
865: $r->print('<p class="LC_error">'.
866: &mt('Unable to connect to database!').
867: '</p>');
868: $r->print('<p>'
869: .&mt('Please notify the server administrator [_1]',
870: ,'<b>'.$serveradmin.'</b>')
871: .'</p>');
872: $r->print('<p>'.
873: &mt('Course Statistics and Charts cannot be '.
874: 'retrieved until the database is restarted. '.
875: 'Your data is intact but cannot be displayed '.
876: 'at this time.').'</p>');
877: $r->print(&Apache::loncommon::end_page());
878: return;
879: }
880: #
881: # Clean out the caches
882: if (exists($env{'form.ClearCache'})) {
883: &Apache::loncoursedata::delete_caches($env{'request.course.id'});
884: }
885: #
886: my $GoToPage = $env{'form.reportSelected'};
887: #
888: # Begin form output
889: $r->print('<form name="Statistics" ');
890: if ($GoToPage eq 'student_submission_reports') {
891: $r->print('onsubmit="return checkanon();" ');
892: }
893: $r->print('method="post" action="/adm/statistics">');
894: $r->rflush();
895: $r->print('<input type="hidden" name="reportSelected" value="'.
896: $GoToPage.'" />');
897: if($GoToPage eq 'activitylog') {
898: # &Apache::lonproblemstatistics::Activity();
899: } elsif($GoToPage eq 'problem_statistics') {
900: &Apache::lonhtmlcommon::add_breadcrumb
901: ({href=>'/adm/statistics?reportselected=problem_statistics',
902: text=>'Overall Problem Statistics'});
903: &Apache::lonproblemstatistics::BuildProblemStatisticsPage($r,$c);
904: } elsif($GoToPage eq 'problem_analysis') {
905: &Apache::lonhtmlcommon::add_breadcrumb
906: ({href=>'/adm/statistics?reportselected=problem_analysis',
907: text=>'Detailed Problem Analysis'});
908: &Apache::lonproblemanalysis::BuildProblemAnalysisPage($r,$c);
909: } elsif($GoToPage eq 'submissiontime_analysis') {
910: &Apache::lonhtmlcommon::add_breadcrumb
911: ({href=>
912: '/adm/statistics?reportselected=submissiontime_analysis',
913: text=>'Submission Time Plots'});
914: &Apache::lonsubmissiontimeanalysis::BuildSubmissionTimePage($r,$c);
915: } elsif($GoToPage eq 'student_submission_reports') {
916: &Apache::lonhtmlcommon::add_breadcrumb
917: ({href=>
918: '/adm/statistics?reportselected=student_submission_reports',
919: text=>'Student Submission Reports'});
920: &Apache::lonstudentsubmissions::BuildStudentSubmissionsPage($r,$c);
921: } elsif($GoToPage eq 'survey_reports') {
922: &Apache::lonhtmlcommon::add_breadcrumb
923: ({href=>
924: '/adm/statistics?reportselected=survey_reports',
925: text=>'Survey Reports'});
926: &Apache::lonsurveyreports::BuildSurveyReportsPage($r,$c);
927: } elsif($GoToPage eq 'correct_problems_plot') {
928: &Apache::lonhtmlcommon::add_breadcrumb
929: ({href=>'/adm/statistics?reportselected=correct_problems_plot',
930: text=>'Correct Problems Plot'});
931: &Apache::loncorrectproblemplot::BuildCorrectProblemsPage($r,$c);
932: } elsif($GoToPage eq 'student_assessment') {
933: &Apache::lonhtmlcommon::clear_breadcrumbs();
934: &Apache::lonhtmlcommon::add_breadcrumb
935: ({href=>'/adm/statistics?reportselected=student_assessment',
936: text=>'Chart'});
937: &Apache::lonstudentassessment::BuildStudentAssessmentPage($r,$c);
938: } elsif($GoToPage eq 'grading_analysis') {
939: &Apache::lonhtmlcommon::add_breadcrumb
940: ({href=>'/adm/statistics?reportselected=grading_anaylsis',
941: text=>'Grading Analysis'});
942: &Apache::longradinganalysis::build_grading_analysis_page($r,$c);
943: }
944: #
945: $r->print("</form>\n");
946: }
947: $r->print(&Apache::loncommon::end_page());
948: $r->rflush();
949: #
950: return OK;
951: }
952:
953: 1;
954:
955: __END__
956:
957: =pod
958:
959: =head1 NAME
960:
961: lonstatistics
962:
963: =head1 SYNOPSIS
964:
965: Main handler for statistics and chart.
966:
967: This is part of the LearningOnline Network with CAPA project
968: described at http://www.lon-capa.org.
969:
970:
971: =head1 PACKAGE VARIABLES
972:
973: =over
974:
975: =item @FullClasslist The full classlist
976:
977: =item @Students The students we are concerned with for this invocation
978:
979: =item @Sections The sections available in this class
980:
981: =item @Groups The groups available in the class
982:
983: =item $curr_student The student currently being examined
984:
985: =item $prev_student The student previous in the classlist
986:
987: =item $next_student The student next in the classlist
988:
989: =back
990:
991: =head1 SUBROUTINES
992:
993: =over
994:
995: =item &clear_classlist_variables()
996:
997: undef the following package variables:
998:
999: =over 4
1000:
1001: =item * @FullClasslist
1002:
1003: =item * @Students
1004:
1005: =item * @Sections
1006:
1007: =item * @Groups
1008:
1009: =item * %StudentData
1010:
1011: =item * @StudentDataOrder
1012:
1013: =item * @SelectedStudentData
1014:
1015: =item * $curr_student
1016:
1017: =item * $prev_student
1018:
1019: =item * $next_student
1020:
1021: =back
1022:
1023: =item &PrepareClasslist()
1024:
1025: Build up the classlist information. The classlist information is kept in
1026: the following package variables:
1027:
1028: =over 4
1029:
1030: =item * @FullClasslist
1031:
1032: =item * @Students
1033:
1034: =item * @Sections
1035:
1036: =item * @Groups
1037:
1038: =item * %StudentData
1039:
1040: =item * @SelectedStudentData
1041:
1042: =item * $curr_student
1043:
1044: =item * $prev_student
1045:
1046: =item * $next_student
1047:
1048: =back
1049:
1050: $curr_student, $prev_student, and $next_student may not be defined, depending
1051: upon the calling context.
1052:
1053: =item get_selected_sections()
1054:
1055: Returns an array of the selected sections
1056:
1057: =item get_selected_groups()
1058:
1059: Returns an array of the selected groups
1060:
1061: =item §ion_and_enrollment_description()
1062:
1063: Returns a string describing the currently selected section(s), group(s) and
1064: access status.
1065:
1066: Inputs: mode = 'plaintext' or 'localized' (defaults to 'localized')
1067: 'plaintext' is used for example in Excel spreadsheets.
1068: Returns: scalar description string.
1069:
1070: =item section_or_group_text()
1071:
1072: =item get_students()
1073:
1074: Returns a list of the selected students
1075:
1076: =item ¤t_student()
1077:
1078: Returns a pointer to a hash containing data about the currently
1079: selected student.
1080:
1081: =item &previous_student()
1082:
1083: Returns a pointer to a hash containing data about the student prior
1084: in the list of students. Or something.
1085:
1086: =item &next_student()
1087:
1088: Returns a pointer to a hash containing data about the next student
1089: to be viewed.
1090:
1091: =item &StudentDataSelect($elementname,$status,$numvisible,$selected)
1092:
1093: Returns html for a selection box allowing the user to choose one (or more)
1094: of the fields of student data available (fullname, username, id, section, etc)
1095:
1096: =over 4
1097:
1098: =item * $elementname The name of the HTML form element
1099:
1100: =item * $status 'multiple' or 'single' selection box
1101:
1102: =item * $numvisible The number of options to be visible
1103:
1104: =back
1105:
1106: =item &get_selected_maps($elementname)
1107:
1108: Input: Name of the <select> form element used to specify the maps.
1109:
1110: Returns: Array of symbs of selected maps or the description 'all'.
1111: If form.$elementname does not exist, 'all' is returned.
1112:
1113: =item &selected_sequences_with_assessments()
1114:
1115: Retrieve the sequences which were selected by the user to show.
1116:
1117: Input: $mode: scalar. Either 'selected' or 'all'. If not specified,
1118: 'selected' is used.
1119:
1120: Returns: an array containing a navmap object and navmap resources,
1121: or an array containing a scalar with an error message.
1122:
1123: =item &map_select($elementname,$status,$numvisible,$restriction)
1124:
1125: Returns html for a selection box allowing the user to choose one (or more)
1126: of the sequences in the course. The values of the sequences are the symbs.
1127: If the top sequence is selected, the value 'top' will result.
1128:
1129: =over 4
1130:
1131: =item * $elementname The name of the HTML form element
1132:
1133: =item * $status 'multiple' or 'single' selection box
1134:
1135: =item * $numvisible The number of options to be visible
1136:
1137: =back
1138:
1139: =item &SectionSelect($elementname,$status,$numvisible)
1140:
1141: Returns html for a selection box allowing the user to choose one (or more)
1142: of the sections in the course.
1143:
1144: Uses the package variables @Sections
1145:
1146: =over 4
1147:
1148: =item * $elementname The name of the HTML form element
1149:
1150: =item * $status 'multiple' or 'single' selection box
1151:
1152: =item * $numvisible The number of options to be visible
1153:
1154: =back
1155:
1156: =item &GroupSelect($elementname,$status,$numvisible)
1157:
1158: Returns html for a selection box allowing the user to choose one (or more)
1159: of the groups in the course.
1160:
1161: Uses the package variables @Groups
1162:
1163: =over 4
1164:
1165: =item * $elementname The name of the HTML form element
1166:
1167: =item * $status 'multiple' or 'single' selection box
1168:
1169: =item * $numvisible The number of options to be visible
1170:
1171: =back
1172:
1173: =item CreateMainMenu()
1174:
1175: =back
1176:
1177: =cut
1178:
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