1: # The LearningOnline Network with CAPA
2: #
3: # $Id: lonstatistics.pm,v 1.139 2008/02/22 18:19:38 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: =pod
32:
33: =head1 NAME
34:
35: lonstatistics
36:
37: =head1 SYNOPSIS
38:
39: Main handler for statistics and chart.
40:
41: =over 4
42:
43: =cut
44:
45: package Apache::lonstatistics;
46:
47: use strict;
48: use Apache::Constants qw(:common :http);
49: use vars qw(
50: @FullClasslist
51: @Students
52: @Sections
53: @Groups
54: %StudentData
55: @StudentDataOrder
56: @SelectedStudentData
57: $enrollment_status);
58:
59: use Apache::lonnet;
60: use Apache::lonhomework;
61: use Apache::loncommon;
62: use Apache::loncoursedata;
63: use Apache::lonhtmlcommon;
64: use Apache::lonmysql;
65: use Apache::lonlocal;
66: use Apache::longroup;
67: use Time::HiRes;
68: #
69: # Statistics Packages
70: use Apache::lonproblemanalysis();
71: use Apache::lonsubmissiontimeanalysis();
72: use Apache::loncorrectproblemplot();
73: use Apache::lonproblemstatistics();
74: use Apache::lonstudentassessment();
75: use Apache::lonpercentage;
76: use Apache::lonstudentsubmissions();
77: use Apache::lonsurveyreports();
78: use Apache::longradinganalysis();
79: use LONCAPA;
80:
81: #######################################################
82: #######################################################
83:
84: =pod
85:
86: =item Package Variables
87:
88: =item @FullClasslist The full classlist
89:
90: =item @Students The students we are concerned with for this invocation
91:
92: =item @Sections The sections available in this class
93:
94: =item @Groups The groups available in the class
95:
96: =item $curr_student The student currently being examined
97:
98: =item $prev_student The student previous in the classlist
99:
100: =item $next_student The student next in the classlist
101:
102: =over
103:
104: =cut
105:
106: #######################################################
107: #######################################################
108: #
109: # Classlist variables
110: #
111: my $curr_student;
112: my $prev_student;
113: my $next_student;
114:
115: #######################################################
116: #######################################################
117:
118: =pod
119:
120: =item &clear_classlist_variables()
121:
122: undef the following package variables:
123:
124: =over
125:
126: =item @FullClasslist
127:
128: =item @Students
129:
130: =item @Sections
131:
132: =item @Groups
133:
134: =item %StudentData
135:
136: =item @StudentDataOrder
137:
138: =item @SelectedStudentData
139:
140: =item $curr_student
141:
142: =item $prev_student
143:
144: =item $next_student
145:
146: =back
147:
148: =cut
149:
150: #######################################################
151: #######################################################
152: sub clear_classlist_variables {
153: undef(@FullClasslist);
154: undef(@Students);
155: undef(@Sections);
156: undef(@Groups);
157: undef(%StudentData);
158: undef(@SelectedStudentData);
159: undef($curr_student);
160: undef($prev_student);
161: undef($next_student);
162: }
163:
164: #######################################################
165: #######################################################
166:
167: =pod
168:
169: =item &PrepareClasslist()
170:
171: Build up the classlist information. The classlist information is kept in
172: the following package variables:
173:
174: =over
175:
176: =item @FullClasslist
177:
178: =item @Students
179:
180: =item @Sections
181:
182: =item @Groups
183:
184: =item %StudentData
185:
186: =item @SelectedStudentData
187:
188: =item $curr_student
189:
190: =item $prev_student
191:
192: =item $next_student
193:
194: =back
195:
196: $curr_student, $prev_student, and $next_student may not be defined, depending
197: upon the calling context.
198:
199: =cut
200:
201: #######################################################
202: #######################################################
203: sub PrepareClasslist {
204: my %Sections;
205: &clear_classlist_variables();
206: #
207: # Retrieve the classlist
208: my $cid = $env{'request.course.id'};
209: my $cdom = $env{'course.'.$cid.'.domain'};
210: my $cnum = $env{'course.'.$cid.'.num'};
211: my ($classlist,$field_names) = &Apache::loncoursedata::get_classlist($cdom,
212: $cnum);
213: my @selected_sections = &get_selected_sections();
214: my @selected_groups = &get_selected_groups();
215: #
216: # Deal with instructors with restricted section access
217: if ($env{'request.course.sec'} !~ /^\s*$/) {
218: @selected_sections = ($env{'request.course.sec'});
219: }
220: #
221: # Set up %StudentData
222: @StudentDataOrder = qw/fullname username domain id section status groups comments/;
223: foreach my $field (@StudentDataOrder) {
224: $StudentData{$field}->{'title'} = &mt($field);
225: $StudentData{$field}->{'base_width'} = length(&mt($field));
226: $StudentData{$field}->{'width'} =
227: $StudentData{$field}->{'base_width'};
228: }
229: #
230: # get the status requested
231: $enrollment_status = 'Active';
232: $enrollment_status = $env{'form.Status'} if (exists($env{'form.Status'}));
233: #
234: # Get groupmembership
235: my ($classgroups,$studentgroups);
236: my %curr_groups = &Apache::longroup::coursegroups($cdom,$cnum);
237: if (%curr_groups) {
238: ($classgroups,$studentgroups) =
239: &Apache::loncoursedata::get_group_memberships($classlist,
240: $field_names,
241: $cdom,$cnum);
242: }
243: my $now = time;
244:
245: # Process the classlist
246: while (my ($student,$student_data) = each (%$classlist)) {
247: my $studenthash = ();
248: for (my $i=0; $i< scalar(@$field_names);$i++) {
249: my $field = $field_names->[$i];
250: # Store the data
251: $studenthash->{$field}=$student_data->[$i];
252: # Keep track of the width of the fields
253: next if (! exists($StudentData{$field}));
254: my $length = length($student_data->[$i]);
255: if ($StudentData{$field}->{'width'} < $length) {
256: $StudentData{$field}->{'width'} = $length;
257: }
258: }
259: my @studentsgroups = &Apache::loncoursedata::get_students_groups
260: ($student,$enrollment_status,
261: $classgroups);
262: if (@studentsgroups) {
263: $studenthash->{'groups'} = join(', ',@studentsgroups);
264: $studenthash->{'groupref'} = \@studentsgroups;
265: } else {
266: $studenthash->{'groups'} = 'none';
267: $studenthash->{'groupref'} = [];
268: }
269: push (@FullClasslist,$studenthash);
270: #
271: # Build up a list of sections
272: my $section = $studenthash->{'section'};
273: if (! defined($section) || $section =~/^\s*$/ || $section == -1) {
274: $studenthash->{'section'} = 'none';
275: $section = $studenthash->{'section'};
276: }
277: $Sections{$section}++;
278: #
279: # Only put in the list those students we are interested in
280: foreach my $sect (@selected_sections) {
281: if ( (($sect eq 'all') ||
282: ($section eq $sect)) &&
283: (($studenthash->{'status'} eq $enrollment_status) ||
284: ($enrollment_status eq 'Any'))
285: ){
286: my $groupcheck = 0;
287: if (grep(/^all$/,@selected_groups)) {
288: push(@Students,$studenthash);
289: last;
290: } elsif (grep(/^none$/,@selected_groups)) {
291: if ($studenthash->{'groups'} eq 'none') {
292: push(@Students,$studenthash);
293: last;
294: }
295: } else {
296: foreach my $group (@selected_groups) {
297: if (grep(/^$group$/,@studentsgroups)) {
298: push(@Students,$studenthash);
299: $groupcheck = 1;
300: last;
301: }
302: }
303: if ($groupcheck) {
304: last;
305: }
306: }
307: }
308: }
309: }
310: #
311: # Put the consolidated section data in the right place
312: if ($env{'request.course.sec'} !~ /^\s*$/) {
313: @Sections = ($env{'request.course.sec'});
314: } else {
315: @Sections = sort {
316: if ($a == $a && $b == $b ) { return $a <=> $b; }
317: return $a cmp $b;
318: } keys(%Sections);
319:
320: unshift(@Sections,'all'); # Put 'all' at the front of the list
321: }
322: # Sort the groups
323: @Groups = sort {$a cmp $b} keys(%{$studentgroups});
324: unshift(@Groups,'all'); # Put 'all' at the front of the list
325:
326: #
327: # Sort the Students
328: my $sortby = 'fullname';
329: $sortby = $env{'form.sort'} if (exists($env{'form.sort'}));
330: my @TmpStudents = sort { lc($a->{$sortby}) cmp lc($b->{$sortby}) ||
331: lc($a->{'fullname'}) cmp lc($b->{'fullname'}) ||
332: lc($a->{'username'}) cmp lc($b->{'username'}) } @Students;
333: @Students = @TmpStudents;
334: #
335: # Now deal with that current student thing....
336: $curr_student = undef;
337: if (exists($env{'form.SelectedStudent'})) {
338: my ($current_uname,$current_dom) =
339: split(':',$env{'form.SelectedStudent'});
340: my $i;
341: for ($i = 0; $i<=$#Students; $i++) {
342: next if (($Students[$i]->{'username'} ne $current_uname) ||
343: ($Students[$i]->{'domain'} ne $current_dom));
344: $curr_student = $Students[$i];
345: last; # If we get here, we have our student.
346: }
347: if (defined($curr_student)) {
348: if ($i == 0) {
349: $prev_student = undef;
350: } else {
351: $prev_student = $Students[$i-1];
352: }
353: if ($i == $#Students) {
354: $next_student = undef;
355: } else {
356: $next_student = $Students[$i+1];
357: }
358: }
359: }
360: #
361: if (exists($env{'form.StudentData'})) {
362: @SelectedStudentData =
363: &Apache::loncommon::get_env_multiple('form.StudentData');
364: } else {
365: @SelectedStudentData = ('username');
366: }
367: foreach (@SelectedStudentData) {
368: if ($_ eq 'all') {
369: @SelectedStudentData = ('all');
370: last;
371: }
372: }
373: #
374: return;
375: }
376:
377: #######################################################
378: #######################################################
379:
380: =pod
381:
382: =item get_selected_sections
383:
384: Returns an array of the selected sections
385:
386: =cut
387:
388: #######################################################
389: #######################################################
390: sub get_selected_sections {
391: my @selected_sections =
392: &Apache::loncommon::get_env_multiple('form.Section');
393: @selected_sections = ('all') if (! @selected_sections);
394: foreach (@selected_sections) {
395: if ($_ eq 'all') {
396: @selected_sections = ('all');
397: }
398: }
399: #
400: # Deal with instructors with restricted section access
401: if ($env{'request.course.sec'} !~ /^\s*$/) {
402: @selected_sections = ($env{'request.course.sec'});
403: }
404: return @selected_sections;
405: }
406:
407: #######################################################
408: #######################################################
409:
410: =pod
411:
412: =item get_selected_groups
413:
414: Returns an array of the selected groups
415:
416: =cut
417:
418: #######################################################
419: #######################################################
420: sub get_selected_groups {
421: my @selected_groups =
422: &Apache::loncommon::get_env_multiple('form.Group');
423: @selected_groups = ('all') if (! @selected_groups);
424: foreach my $grp (@selected_groups) {
425: if ($grp eq 'all') {
426: @selected_groups = ('all');
427: last;
428: }
429: }
430: return @selected_groups;
431: }
432:
433: =pod
434:
435: =item §ion_and_enrollment_description
436:
437: Returns a string describing the currently selected section(s), group(s) and
438: access status.
439:
440: Inputs: mode = 'plaintext' or 'localized' (defaults to 'localized')
441: 'plaintext' is used for example in Excel spreadsheets.
442: Returns: scalar description string.
443:
444: =cut
445:
446: #######################################################
447: #######################################################
448: sub section_and_enrollment_description {
449: my ($mode) = @_;
450: if (! defined($mode)) { $mode = 'localized'; }
451: my @sections = &Apache::lonstatistics::get_selected_sections();
452: my @groups = &Apache::lonstatistics::get_selected_groups();
453: my $description;
454: if ($mode eq 'localized') {
455: $description = &mt('Unable to determine section, groups and access status');
456: } elsif ($mode eq 'plaintext') {
457: $description = 'Unable to determine section, groups and access status';
458: } else {
459: $description = 'Bad parameter passed to lonstatistics::section_and_enrollment_description';
460: &Apache::lonnet::logthis($description);
461: }
462: $description = §ion_or_group_text($mode,'section',@sections).
463: ' '.§ion_or_group_text($mode,'group',@groups);
464: if ($mode eq 'localized') {
465: $description .= &mt(' [_1] access status.',$env{'form.Status'});
466: } elsif ($mode eq 'plaintext') {
467: $description .= ' '.$env{'form.Status'}.' access status.';
468: }
469: return $description;
470: }
471:
472: #######################################################
473: #######################################################
474:
475: sub section_or_group_text {
476: my ($mode,$type,@items) = @_;
477: my $text;
478: my %phrases = ();
479: %{$phrases{'section'}} = (
480: single => 'Section',
481: all => 'All sections',
482: plural => 'Sections',
483: );
484: %{$phrases{'group'}} = (
485: single => 'Group',
486: all => 'All groups',
487: plural => 'Groups',
488: );
489: if (scalar(@items) == 1 && $items[0] ne 'all') {
490: if ($mode eq 'localized') {
491: $text = &mt('[_1] [_2].',$phrases{$type}{single},$items[0]);
492: } elsif ($mode eq 'plaintext') {
493: $text = $phrases{$type}{single}.' '.$items[0].'.';
494:
495: }
496: } elsif (scalar(@items) && $items[0] eq 'all') {
497: if ($mode eq 'localized') {
498: $text = &mt('[_1].',$phrases{$type}{all});
499: } elsif ($mode eq 'plaintext') {
500: $text = $phrases{$type}{all}.'.';
501: }
502: } elsif (scalar(@items)) {
503: my $lastitem = pop(@items);
504: if ($mode eq 'localized') {
505: $text = &mt('[_1] [_2] and [_3].',$phrases{$type}{plural},
506: join(', ',@items),$lastitem);
507: } elsif ($mode eq 'plaintext') {
508: $text = $phrases{$type}{plural}.' '.join(', ',@items).' and '.
509: $lastitem.'.';
510: }
511: }
512: return $text;
513: }
514:
515:
516: =pod
517:
518: =item get_students
519:
520: Returns a list of the selected students
521:
522: =cut
523:
524: #######################################################
525: #######################################################
526: sub get_students {
527: if (! @Students) {
528: &PrepareClasslist()
529: }
530: return @Students;
531: }
532:
533: #######################################################
534: #######################################################
535:
536: =pod
537:
538: =item ¤t_student()
539:
540: Returns a pointer to a hash containing data about the currently
541: selected student.
542:
543: =cut
544:
545: #######################################################
546: #######################################################
547: sub current_student {
548: return $curr_student;
549: }
550:
551: #######################################################
552: #######################################################
553:
554: =pod
555:
556: =item &previous_student()
557:
558: Returns a pointer to a hash containing data about the student prior
559: in the list of students. Or something.
560:
561: =cut
562:
563: #######################################################
564: #######################################################
565: sub previous_student {
566: return $prev_student;
567: }
568:
569: #######################################################
570: #######################################################
571:
572: =pod
573:
574: =item &next_student()
575:
576: Returns a pointer to a hash containing data about the next student
577: to be viewed.
578:
579: =cut
580:
581: #######################################################
582: #######################################################
583: sub next_student {
584: return $next_student;
585: }
586:
587: ##############################################
588: ##############################################
589:
590: =pod
591:
592: =item &StudentDataSelect($elementname,$status,$numvisible,$selected)
593:
594: Returns html for a selection box allowing the user to choose one (or more)
595: of the fields of student data available (fullname, username, id, section, etc)
596:
597: =over 4
598:
599: =item $elementname The name of the HTML form element
600:
601: =item $status 'multiple' or 'single' selection box
602:
603: =item $numvisible The number of options to be visible
604:
605: =back
606:
607: =cut
608:
609: ##############################################
610: ##############################################
611: sub StudentDataSelect {
612: my ($elementname,$status,$numvisible)=@_;
613: if ($numvisible < 1) {
614: return;
615: }
616: #
617: # Build the form element
618: my $Str = "\n";
619: $Str .= '<select name="'.$elementname.'" ';
620: if ($status ne 'single') {
621: $Str .= 'multiple="true" ';
622: }
623: $Str .= 'size="'.$numvisible.'" >'."\n";
624: #
625: # Deal with 'all'
626: $Str .= ' <option value="all" ';
627: foreach (@SelectedStudentData) {
628: if ($_ eq 'all') {
629: $Str .= 'selected ';
630: last;
631: }
632: }
633: $Str .= ">all</option>\n";
634: #
635: # Loop through the student data fields
636: foreach my $item (@StudentDataOrder) {
637: $Str .= ' <option value="'.$item.'" ';
638: foreach (@SelectedStudentData) {
639: if ($item eq $_ ) {
640: $Str .= 'selected ';
641: last;
642: }
643: }
644: $Str .= '>'.$item."</option>\n";
645: }
646: $Str .= "</select>\n";
647: return $Str;
648: }
649:
650: #######################################################
651: #######################################################
652:
653: =pod
654:
655: =item &get_selected_maps($elementname)
656:
657: Input: Name of the <select> form element used to specify the maps.
658:
659: Returns: Array of symbs of selected maps or the description 'all'.
660: If form.$elementname does not exist, 'all' is returned.
661:
662: =cut
663:
664: #######################################################
665: #######################################################
666: sub get_selected_maps {
667: my ($elementname) = @_;
668: my @selected_maps =
669: &Apache::loncommon::get_env_multiple('form.'.$elementname);
670: @selected_maps = ('all') if (! @selected_maps);
671: foreach my $map (@selected_maps) {
672: if ($map eq 'all') {
673: @selected_maps = ('all');
674: last;
675: }
676: }
677: return @selected_maps;
678: }
679:
680:
681: #######################################################
682: #######################################################
683:
684: =pod
685:
686: =item &selected_sequences_with_assessments
687:
688: Retrieve the sequences which were selected by the user to show.
689:
690: Input: $mode: scalar. Either 'selected' or 'all'. If not specified,
691: 'selected' is used.
692:
693: Returns: an array containing a navmap object and navmap resources,
694: or an array containing a scalar with an error message.
695:
696: =cut
697:
698: #######################################################
699: #######################################################
700: sub selected_sequences_with_assessments {
701: my ($mode) = @_;
702: $mode = 'selected' if (! defined($mode));
703: my $navmap = Apache::lonnavmaps::navmap->new();
704: if (!defined($navmap)) {
705: return ('Can not open Coursemap');
706: }
707: #
708: my @sequences = $navmap->retrieveResources(undef,
709: sub { shift->is_map(); },1,0,1);
710: my $toplevelseq = $navmap->getById('0.0');
711: if (!grep(/^\Q$toplevelseq\E$/,@sequences)) {
712: unshift(@sequences,$toplevelseq);
713: }
714:
715: my @sequences_with_assessments;
716: foreach my $sequence (@sequences) {
717: if ($navmap->hasResource($sequence,sub { shift->is_problem(); },0,1)){
718: push(@sequences_with_assessments,$sequence);
719: }
720: }
721: #
722: my @sequences_to_show;
723: foreach my $sequence (@sequences_with_assessments) {
724: if ($mode eq 'all') {
725: push (@sequences_to_show,$sequence);
726: } elsif ($mode eq 'selected') {
727: foreach my $map_symb (&get_selected_maps('Maps')) {
728: if ($sequence->symb eq $map_symb || $map_symb eq 'all'){
729: push (@sequences_to_show,$sequence);
730: last; # Only put it in once
731: }
732: }
733: }
734:
735: }
736: return $navmap,@sequences_to_show;
737: }
738:
739: ##############################################
740: ##############################################
741:
742: =pod
743:
744: =item &map_select($elementname,$status,$numvisible,$restriction)
745:
746: Returns html for a selection box allowing the user to choose one (or more)
747: of the sequences in the course. The values of the sequences are the symbs.
748: If the top sequence is selected, the value 'top' will result.
749:
750: =over 4
751:
752: =item $elementname The name of the HTML form element
753:
754: =item $status 'multiple' or 'single' selection box
755:
756: =item $numvisible The number of options to be visible
757:
758: =back
759:
760: =cut
761:
762: ##############################################
763: ##############################################
764: sub map_select {
765: my ($elementname,$status,$numvisible)=@_;
766: if ($numvisible < 1) {
767: return;
768: }
769: #
770: # Set up array of selected items
771: my @selected_maps = &get_selected_maps($elementname);
772: #
773: # Build the form element
774: my $form = "\n";
775: $form .= '<select name="'.$elementname.'" ';
776: if ($status ne 'single') {
777: $form .= 'multiple="true" ';
778: }
779: $form .= 'size="'.$numvisible.'" >'."\n";
780: #
781: # Put in option for 'all'
782: $form .= ' <option value="all" ';
783: if ($selected_maps[0] eq 'all') {
784: $form .= 'selected ';
785: }
786: $form .= ">all</option>\n";
787: #
788: # Loop through the sequences
789: my @sequences = &selected_sequences_with_assessments('all');
790: my $navmap;
791: if (!ref($sequences[0])) {
792: return $sequences[0];
793: } else {
794: $navmap = shift(@sequences);
795: }
796: foreach my $seq (@sequences){
797: $form .= ' <option value="'.$seq->symb.'" ';
798: foreach (@selected_maps) {
799: if ($seq->symb eq $_) {
800: $form .= 'selected ';
801: last;
802: }
803: }
804: $form .= '>'.$seq->compTitle."</option>\n";
805: }
806: $form .= "</select>\n";
807: return $form;
808: }
809:
810: ##############################################
811: ##############################################
812:
813: =pod
814:
815: =item &SectionSelect($elementname,$status,$numvisible)
816:
817: Returns html for a selection box allowing the user to choose one (or more)
818: of the sections in the course.
819:
820: Uses the package variables @Sections
821: =over 4
822:
823: =item $elementname The name of the HTML form element
824:
825: =item $status 'multiple' or 'single' selection box
826:
827: =item $numvisible The number of options to be visible
828:
829: =back
830:
831: =cut
832:
833: ##############################################
834: ##############################################
835: sub SectionSelect {
836: my ($elementname,$status,$numvisible)=@_;
837: if ($numvisible < 1) {
838: return;
839: }
840: #
841: # Make sure we have the data we need to continue
842: if (! @Sections) {
843: &PrepareClasslist()
844: }
845: #
846: # Build the form element
847: my $Str = "\n";
848: $Str .= '<select name="'.$elementname.'" ';
849: if ($status ne 'single') {
850: $Str .= 'multiple="true" ';
851: }
852: $Str .= 'size="'.$numvisible.'" >'."\n";
853: #
854: # Loop through the sequences
855: foreach my $s (@Sections) {
856: $Str .= ' <option value="'.$s.'" ';
857: foreach (&get_selected_sections()) {
858: if ($s eq $_) {
859: $Str .= 'selected ';
860: last;
861: }
862: }
863: $Str .= '>'.$s."</option>\n";
864: }
865: $Str .= "</select>\n";
866: return $Str;
867: }
868:
869: ##############################################
870: ##############################################
871:
872: =pod
873:
874: =item &GroupSelect($elementname,$status,$numvisible)
875:
876: Returns html for a selection box allowing the user to choose one (or more)
877: of the groups in the course.
878:
879: Uses the package variables @Groups
880: =over 4
881:
882: =item $elementname The name of the HTML form element
883:
884: =item $status 'multiple' or 'single' selection box
885:
886: =item $numvisible The number of options to be visible
887:
888: =back
889:
890: =cut
891:
892: ##############################################
893: ##############################################
894: sub GroupSelect {
895: my ($elementname,$status,$numvisible)=@_;
896: if ($numvisible < 1) {
897: return;
898: }
899: #
900: # Make sure we have the data we need to continue
901: if (! @Groups) {
902: &PrepareClasslist();
903: }
904: #
905: # Build the form element
906: my $Str = "\n";
907: $Str .= '<select name="'.$elementname.'" ';
908: if ($status ne 'single') {
909: $Str .= 'multiple="true" ';
910: }
911: $Str .= 'size="'.$numvisible.'" >'."\n";
912: #
913: # Loop through the groups
914: foreach my $s (@Groups) {
915: $Str .= ' <option value="'.$s.'" ';
916: foreach my $group (&get_selected_groups()) {
917: if ($s eq $group) {
918: $Str .= 'selected ';
919: last;
920: }
921: }
922: $Str .= '>'.$s."</option>\n";
923: }
924: $Str .= "</select>\n";
925: }
926:
927:
928: ##################################################
929: ##################################################
930: sub DisplayClasslist {
931: my ($r)=@_;
932: &Apache::lonhtmlcommon::add_breadcrumb
933: ({text=>'Select One Student'});
934: #
935: # Output some of the standard interface components
936: my $Str;
937: $Str .= &Apache::lonhtmlcommon::breadcrumbs('Select One Student');
938: $Str .= '<p><table cellspacing="5">'."\n";
939: $Str .= '<tr>';
940: $Str .= '<th align="center"><b>'.&mt('Sections').'</b></th>';
941: $Str .= '<th align="center"><b>'.&mt('Groups').'</b></th>';
942: $Str .= '<th align="center"><b>'.&mt('Access Status').'</b></th>';
943: $Str .= '</tr>'.$/;
944: $Str .= '<tr>';
945: $Str .= '<td>'.
946: &Apache::lonstatistics::SectionSelect('Section','multiple',5).
947: '</td>';
948: $Str .= '<td>'.
949: &Apache::lonstatistics::GroupSelect('Group','multiple',5).
950: '</td>';
951: $Str .= '<td>'.
952: &Apache::lonhtmlcommon::StatusOptions(undef,undef,5).
953: '</td>';
954:
955: $Str .= '</tr>'.$/;
956: $Str .= '</table></p>';
957: $Str .= '<input type="submit" name="selectstudent" value="'.
958: &mt('Update Display').'" />';
959: $r->print($Str);
960: $r->rflush();
961: #
962: my @Fields = ('fullname','username','domain','id','section','status','groups');
963: #
964: $Str = '';
965: my @selected_sections = &get_selected_sections();
966: if (! @Students) {
967: if ($selected_sections[0] eq 'all') {
968: if (lc($env{'form.Status'}) eq 'any') {
969: $Str .= '<h2>'.
970: &mt('There are no students in the course.').
971: '</h2>';
972: } elsif (lc($env{'form.Status'}) eq 'active') {
973: $Str .= '<h2>'.
974: &mt('There are no currently enrolled students in the course.').
975: '</h2>';
976: } elsif (lc($env{'form.Status'}) eq 'expired') {
977: $Str .= '<h2>'.
978: &mt('There are no previously enrolled students in the course.').
979: '</h2>';
980: }
981: } else {
982: my $sections;
983: if (lc($env{'form.Status'}) eq 'any') {
984: $Str .= '<h2>'.
985: &mt('There are no students in the selected sections.').
986: '</h2>';
987: } elsif (lc($env{'form.Status'}) eq 'active') {
988: $Str .= '<h2>'.
989: &mt('There are no currently enrolled students in the selected sections.').
990: '</h2>';
991: } elsif (lc($env{'form.Status'}) eq 'expired') {
992: $Str .= '<h2>'.
993: &mt('There are no previously enrolled students in the selected sections.').
994: '</h2>';
995: }
996: }
997: $Str.= '<a href="/adm/statistics?reportSelected=student_assessment">'.
998: &mt('Click here to return to the chart').'</a>';
999: $r->print($Str);
1000: $r->rflush();
1001: return;
1002: }
1003:
1004: # "Click" is asinine but it is probably not my place to change the world.
1005: $Str .= '<h2>Click on a students name or username to view their chart</h2>';
1006: $Str .= '<table border="0"><tr><td bgcolor="#777777">'."\n";
1007: $Str .= '<table border="0" cellpadding="3"><tr bgcolor="#e6ffff">'."\n";
1008: foreach my $field (@Fields) {
1009: $Str .= '<th><a href="/adm/statistics?'.
1010: 'reportSelected=student_assessment&'.
1011: 'selectstudent=1&'.
1012: 'sort='.$field.'">'.&mt($field).
1013: '</a></th>';
1014: }
1015: $Str .= '</tr>'."\n";
1016: #
1017: my $alternate = 0;
1018: foreach my $student (@Students) { # @Students is a package variable
1019: my $sname = $student->{'username'}.':'.$student->{'domain'};
1020: if($alternate) {
1021: $Str .= '<tr bgcolor="#ffffe6">';
1022: } else {
1023: $Str .= '<tr bgcolor="#ffffc6">';
1024: }
1025: $alternate = ($alternate + 1) % 2;
1026: #
1027: foreach my $field (@Fields) {
1028: $Str .= '<td>';
1029: if ($field eq 'fullname' || $field eq 'username') {
1030: $Str .= '<a href="/adm/statistics?reportSelected=';
1031: $Str .= &escape('student_assessment');
1032: $Str .= '&sort='.&escape($env{'form.sort'});
1033: $Str .= '&SelectedStudent=';
1034: $Str .= &escape($sname).'">';
1035: $Str .= $student->{$field}.' ';
1036: $Str .= '</a>';
1037: } elsif ($field eq 'status') {
1038: $Str .= &mt($student->{$field});
1039: } else {
1040: $Str .= $student->{$field};
1041: }
1042: $Str .= '</td>';
1043: }
1044: $Str .= "</tr>\n";
1045: }
1046: $Str .= '</table></td></tr></table>'."\n";
1047: #
1048: $r->print($Str);
1049: $r->rflush();
1050: #
1051: return;
1052: }
1053:
1054: ##############################################
1055: ##############################################
1056: sub CreateMainMenu {
1057: #
1058: # Define menu data
1059: my @reports = ({ internal_name => 'problem_statistics',
1060: name => &mt('Overall Problem Statistics'),
1061: short_description =>
1062: &mt('Student performance statistics on all problems.'),
1063: },
1064: { internal_name => 'problem_analysis',
1065: name => &mt('Detailed Problem Analysis'),
1066: short_description =>
1067: &mt('Detailed statistics and graphs of student performance on problems.'),
1068: },
1069: { internal_name => 'submissiontime_analysis',
1070: name => &mt('Submission Time Plots'),
1071: short_description =>
1072: &mt('Display and analysis of submission times on assessments.'),
1073: },
1074: { internal_name => 'student_submission_reports',
1075: name => &mt('Student Submission Reports'),
1076: short_description =>
1077: &mt('Prepare reports of student submissions.'),
1078: },
1079: { internal_name => 'survey_reports',
1080: name => &mt('Survey Reports'),
1081: short_description =>
1082: &mt('Prepare reports on survey results.'),
1083: },
1084: { internal_name => 'correct_problems_plot',
1085: name => &mt('Correct Problems Plot'),
1086: short_description =>
1087: &mt('Display a histogram of student performance in the course.'),
1088: },
1089: # { internal_name => 'grading_analysis',
1090: # name => &mt('Detailed Grading Analysis'),
1091: # short_description =>
1092: # &mt('Display statistics about who graded who.'),
1093: # },
1094: # { internal_name => 'student_assessment',
1095: # name => &mt('Problem Status Chart'),
1096: # short_description =>
1097: # &mt('Brief view of each students performance in course.'),
1098: # },
1099: # 'percentage' => 'Correct-problems Plot',
1100: # 'activitylog' => 'Activity Log',
1101: );
1102: #
1103: # Create the menu
1104: my $Str;
1105: $Str .= '<h2>'.&mt('Please select a report to generate').'</h2>';
1106: foreach my $reportdata (@reports) {
1107: $Str .=' <h3><a href="/adm/statistics?reportSelected='.
1108: $reportdata->{'internal_name'}.'" >'.
1109: $reportdata->{'name'}."</a></h3>\n";
1110: $Str .= ' '.(' 'x8).$reportdata->{'short_description'}.
1111: "\n";
1112: }
1113: $Str .="</dl>\n";
1114: #
1115: return $Str;
1116: }
1117:
1118: ##############################################
1119: ##############################################
1120: sub handler {
1121: my $r=shift;
1122: my $c = $r->connection();
1123: #
1124: # Check for overloading
1125: my $loaderror=&Apache::lonnet::overloaderror($r);
1126: if ($loaderror) { return $loaderror; }
1127: $loaderror=
1128: &Apache::lonnet::overloaderror($r,
1129: $env{'course.'.$env{'request.course.id'}.'.home'});
1130: if ($loaderror) { return $loaderror; }
1131: #
1132: # Check for access
1133: if (! &Apache::lonnet::allowed('vgr',$env{'request.course.id'})) {
1134: $env{'user.error.msg'}=
1135: $r->uri.":vgr:0:0:Cannot view grades for complete course";
1136: if (! &Apache::lonnet::allowed('vgr',
1137: $env{'request.course.id'}.'/'.$env{'request.course.sec'})) {
1138: $env{'user.error.msg'}=
1139: $r->uri.":vgr:0:0:Cannot view grades with given role";
1140: return HTTP_NOT_ACCEPTABLE;
1141: }
1142: }
1143: #
1144: # Send the header
1145: &Apache::loncommon::no_cache($r);
1146: &Apache::loncommon::content_type($r,'text/html');
1147: $r->send_http_header;
1148: if ($r->header_only) { return OK; }
1149: #
1150: # Extract form elements from query string
1151: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1152: ['sort','reportSelected',
1153: 'SelectedStudent']);
1154: #
1155: # Give the LON-CAPA page header
1156: my $style = <<ENDSTYLE;
1157: <style type="text/css">
1158: ul.sub_studentans { list-style-type: none }
1159: ul.sub_correctans { list-style-type: none }
1160: tr.even { background-color: \#CCCCCC }
1161: td.essay { border: 1px solid gray; }
1162: </style>
1163: ENDSTYLE
1164:
1165: $r->print(&Apache::loncommon::start_page('Course Statistics and Charts',
1166: $style));
1167: $r->rflush();
1168: #
1169: # Either print out a menu for them or send them to a report
1170: &Apache::lonhtmlcommon::clear_breadcrumbs();
1171: &Apache::lonhtmlcommon::add_breadcrumb({href=>'/adm/statistics',
1172: title=>'Statistics',
1173: text =>'Statistics',
1174: faq=>139,
1175: bug=>'Statistics and Charts'});
1176: if (! exists($env{'form.reportSelected'}) ||
1177: $env{'form.reportSelected'} eq '') {
1178: $r->print(&Apache::lonhtmlcommon::breadcrumbs('Statistics Main Page').
1179: &CreateMainMenu());
1180: } else {
1181: #
1182: if (! &Apache::lonmysql::verify_sql_connection()) {
1183: my $serveradmin = $r->dir_config('lonAdmEMail');
1184: $r->print('<h2><font color="Red">'.
1185: &mt('Unable to connect to database!').
1186: '</font></h2>');
1187: $r->print('<p>'.
1188: &mt('Please notify the server administrator ').
1189: '<b>'.$serveradmin.'</b></p>');
1190: $r->print('<p>'.
1191: &mt('Course Statistics and Charts cannot be '.
1192: 'retrieved until the database is restarted. '.
1193: 'Your data is intact but cannot be displayed '.
1194: 'at this time.').'</p>');
1195: $r->print(&Apache::loncommon::end_page());
1196: return;
1197: }
1198: #
1199: # Clean out the caches
1200: if (exists($env{'form.ClearCache'})) {
1201: &Apache::loncoursedata::delete_caches($env{'requres.course.id'});
1202: }
1203: #
1204: # Begin form output
1205: $r->print('<form name="Statistics" ');
1206: $r->print('method="post" action="/adm/statistics">');
1207: $r->rflush();
1208: #
1209: my $GoToPage = $env{'form.reportSelected'};
1210: #
1211: $r->print('<input type="hidden" name="reportSelected" value="'.
1212: $GoToPage.'">');
1213: if($GoToPage eq 'activitylog') {
1214: # &Apache::lonproblemstatistics::Activity();
1215: } elsif($GoToPage eq 'problem_statistics') {
1216: &Apache::lonhtmlcommon::add_breadcrumb
1217: ({href=>'/adm/statistics?reportselected=problem_statistics',
1218: text=>'Overall Problem Statistics'});
1219: &Apache::lonproblemstatistics::BuildProblemStatisticsPage($r,$c);
1220: } elsif($GoToPage eq 'problem_analysis') {
1221: &Apache::lonhtmlcommon::add_breadcrumb
1222: ({href=>'/adm/statistics?reportselected=problem_analysis',
1223: text=>'Detailed Problem Analysis'});
1224: &Apache::lonproblemanalysis::BuildProblemAnalysisPage($r,$c);
1225: } elsif($GoToPage eq 'submissiontime_analysis') {
1226: &Apache::lonhtmlcommon::add_breadcrumb
1227: ({href=>
1228: '/adm/statistics?reportselected=submissiontime_analysis',
1229: text=>'Submission Time Plots'});
1230: &Apache::lonsubmissiontimeanalysis::BuildSubmissionTimePage($r,$c);
1231: } elsif($GoToPage eq 'student_submission_reports') {
1232: &Apache::lonhtmlcommon::add_breadcrumb
1233: ({href=>
1234: '/adm/statistics?reportselected=student_submission_reports',
1235: text=>'Student Submission Reports'});
1236: &Apache::lonstudentsubmissions::BuildStudentSubmissionsPage($r,$c);
1237: } elsif($GoToPage eq 'survey_reports') {
1238: &Apache::lonhtmlcommon::add_breadcrumb
1239: ({href=>
1240: '/adm/statistics?reportselected=survey_reports',
1241: text=>'Survey Reports'});
1242: &Apache::lonsurveyreports::BuildSurveyReportsPage($r,$c);
1243: } elsif($GoToPage eq 'correct_problems_plot') {
1244: &Apache::lonhtmlcommon::add_breadcrumb
1245: ({href=>'/adm/statistics?reportselected=correct_problems_plot',
1246: text=>'Correct Problems Plot'});
1247: &Apache::loncorrectproblemplot::BuildCorrectProblemsPage($r,$c);
1248: } elsif($GoToPage eq 'student_assessment') {
1249: &Apache::lonhtmlcommon::clear_breadcrumbs();
1250: &Apache::lonhtmlcommon::add_breadcrumb
1251: ({href=>'/adm/statistics?reportselected=student_assessment',
1252: text=>'Chart'});
1253: &Apache::lonstudentassessment::BuildStudentAssessmentPage($r,$c);
1254: } elsif($GoToPage eq 'grading_analysis') {
1255: &Apache::lonhtmlcommon::add_breadcrumb
1256: ({href=>'/adm/statistics?reportselected=grading_anaylsis',
1257: text=>'Grading Analysis'});
1258: &Apache::longradinganalysis::build_grading_analysis_page($r,$c);
1259: }
1260: #
1261: $r->print("</form>\n");
1262: }
1263: $r->print(&Apache::loncommon::end_page());
1264: $r->rflush();
1265: #
1266: return OK;
1267: }
1268:
1269: 1;
1270:
1271: #######################################################
1272: #######################################################
1273:
1274: =pod
1275:
1276: =back
1277:
1278: =cut
1279:
1280: #######################################################
1281: #######################################################
1282:
1283: __END__
1284:
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