1: # The LearningOnline Network with CAPA
2: #
3: # $Id: lonstatistics.pm,v 1.128 2006/02/14 16:05:37 albertel 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: %StudentData
54: @StudentDataOrder
55: @SelectedStudentData
56: $enrollment_status);
57:
58: use Apache::lonnet;
59: use Apache::lonhomework;
60: use Apache::loncommon;
61: use Apache::loncoursedata;
62: use Apache::lonhtmlcommon;
63: use Apache::lonmysql;
64: use Apache::lonlocal;
65: use Time::HiRes;
66: #
67: # Statistics Packages
68: use Apache::lonproblemanalysis();
69: use Apache::lonsubmissiontimeanalysis();
70: use Apache::loncorrectproblemplot();
71: use Apache::lonproblemstatistics();
72: use Apache::lonstudentassessment();
73: use Apache::lonpercentage;
74: use Apache::lonstudentsubmissions();
75: use Apache::lonsurveyreports();
76: use Apache::longradinganalysis();
77:
78: #######################################################
79: #######################################################
80:
81: =pod
82:
83: =item Package Variables
84:
85: =item @FullClasslist The full classlist
86:
87: =item @Students The students we are concerned with for this invocation
88:
89: =item @Sections The sections available in this class
90:
91: =item $curr_student The student currently being examined
92:
93: =item $prev_student The student previous in the classlist
94:
95: =item $next_student The student next in the classlist
96:
97: =over
98:
99: =cut
100:
101: #######################################################
102: #######################################################
103: #
104: # Classlist variables
105: #
106: my $curr_student;
107: my $prev_student;
108: my $next_student;
109:
110: #######################################################
111: #######################################################
112:
113: =pod
114:
115: =item &clear_classlist_variables()
116:
117: undef the following package variables:
118:
119: =over
120:
121: =item @FullClasslist
122:
123: =item @Students
124:
125: =item @Sections
126:
127: =item %StudentData
128:
129: =item @StudentDataOrder
130:
131: =item @SelectedStudentData
132:
133: =item $curr_student
134:
135: =item $prev_student
136:
137: =item $next_student
138:
139: =back
140:
141: =cut
142:
143: #######################################################
144: #######################################################
145: sub clear_classlist_variables {
146: undef(@FullClasslist);
147: undef(@Students);
148: undef(@Sections);
149: undef(%StudentData);
150: undef(@SelectedStudentData);
151: undef($curr_student);
152: undef($prev_student);
153: undef($next_student);
154: }
155:
156: #######################################################
157: #######################################################
158:
159: =pod
160:
161: =item &PrepareClasslist()
162:
163: Build up the classlist information. The classlist information is kept in
164: the following package variables:
165:
166: =over
167:
168: =item @FullClasslist
169:
170: =item @Students
171:
172: =item @Sections
173:
174: =item %StudentData
175:
176: =item @SelectedStudentData
177:
178: =item $curr_student
179:
180: =item $prev_student
181:
182: =item $next_student
183:
184: =back
185:
186: $curr_student, $prev_student, and $next_student may not be defined, depending
187: upon the calling context.
188:
189: =cut
190:
191: #######################################################
192: #######################################################
193: sub PrepareClasslist {
194: my %Sections;
195: &clear_classlist_variables();
196: #
197: # Retrieve the classlist
198: my $cid = $env{'request.course.id'};
199: my $cdom = $env{'course.'.$cid.'.domain'};
200: my $cnum = $env{'course.'.$cid.'.num'};
201: my ($classlist,$field_names) = &Apache::loncoursedata::get_classlist($cdom,
202: $cnum);
203: my @selected_sections = &get_selected_sections();
204: #
205: # Deal with instructors with restricted section access
206: if ($env{'request.course.sec'} !~ /^\s*$/) {
207: @selected_sections = ($env{'request.course.sec'});
208: }
209: #
210: # Set up %StudentData
211: @StudentDataOrder = qw/fullname username domain id section status comments/;
212: foreach my $field (@StudentDataOrder) {
213: $StudentData{$field}->{'title'} = &mt($field);
214: $StudentData{$field}->{'base_width'} = length(&mt($field));
215: $StudentData{$field}->{'width'} =
216: $StudentData{$field}->{'base_width'};
217: }
218: #
219: # get the status requested
220: $enrollment_status = 'Active';
221: $enrollment_status = $env{'form.Status'} if (exists($env{'form.Status'}));
222: #
223: # Process the classlist
224: while (my ($student,$student_data) = each (%$classlist)) {
225: my $studenthash = ();
226: for (my $i=0; $i< scalar(@$field_names);$i++) {
227: my $field = $field_names->[$i];
228: # Store the data
229: $studenthash->{$field}=$student_data->[$i];
230: # Keep track of the width of the fields
231: next if (! exists($StudentData{$field}));
232: my $length = length($student_data->[$i]);
233: if ($StudentData{$field}->{'width'} < $length) {
234: $StudentData{$field}->{'width'} = $length;
235: }
236: }
237: push (@FullClasslist,$studenthash);
238: #
239: # Build up a list of sections
240: my $section = $studenthash->{'section'};
241: if (! defined($section) || $section =~/^\s*$/ || $section == -1) {
242: $studenthash->{'section'} = 'none';
243: $section = $studenthash->{'section'};
244: }
245: $Sections{$section}++;
246: #
247: # Only put in the list those students we are interested in
248: foreach my $sect (@selected_sections) {
249: if ( (($sect eq 'all') ||
250: ($section eq $sect)) &&
251: (($studenthash->{'status'} eq $enrollment_status) ||
252: ($enrollment_status eq 'Any'))
253: ){
254: push (@Students,$studenthash);
255: last;
256: }
257: }
258: }
259: #
260: # Put the consolidated section data in the right place
261: if ($env{'request.course.sec'} !~ /^\s*$/) {
262: @Sections = ($env{'request.course.sec'});
263: } else {
264: @Sections = sort {$a cmp $b} keys(%Sections);
265: unshift(@Sections,'all'); # Put 'all' at the front of the list
266: }
267: #
268: # Sort the Students
269: my $sortby = 'fullname';
270: $sortby = $env{'form.sort'} if (exists($env{'form.sort'}));
271: my @TmpStudents = sort { lc($a->{$sortby}) cmp lc($b->{$sortby}) ||
272: lc($a->{'fullname'}) cmp lc($b->{'fullname'}) ||
273: lc($a->{'username'}) cmp lc($b->{'username'}) } @Students;
274: @Students = @TmpStudents;
275: #
276: # Now deal with that current student thing....
277: $curr_student = undef;
278: if (exists($env{'form.SelectedStudent'})) {
279: my ($current_uname,$current_dom) =
280: split(':',$env{'form.SelectedStudent'});
281: my $i;
282: for ($i = 0; $i<=$#Students; $i++) {
283: next if (($Students[$i]->{'username'} ne $current_uname) ||
284: ($Students[$i]->{'domain'} ne $current_dom));
285: $curr_student = $Students[$i];
286: last; # If we get here, we have our student.
287: }
288: if (defined($curr_student)) {
289: if ($i == 0) {
290: $prev_student = undef;
291: } else {
292: $prev_student = $Students[$i-1];
293: }
294: if ($i == $#Students) {
295: $next_student = undef;
296: } else {
297: $next_student = $Students[$i+1];
298: }
299: }
300: }
301: #
302: if (exists($env{'form.StudentData'})) {
303: @SelectedStudentData =
304: &Apache::loncommon::get_env_multiple('form.StudentData');
305: } else {
306: @SelectedStudentData = ('username');
307: }
308: foreach (@SelectedStudentData) {
309: if ($_ eq 'all') {
310: @SelectedStudentData = ('all');
311: last;
312: }
313: }
314: #
315: return;
316: }
317:
318: #######################################################
319: #######################################################
320:
321: =pod
322:
323: =item get_selected_sections
324:
325: Returns an array of the selected sections
326:
327: =cut
328:
329: #######################################################
330: #######################################################
331: sub get_selected_sections {
332: my @selected_sections =
333: &Apache::loncommon::get_env_multiple('form.Section');
334: @selected_sections = ('all') if (! @selected_sections);
335: foreach (@selected_sections) {
336: if ($_ eq 'all') {
337: @selected_sections = ('all');
338: }
339: }
340: #
341: # Deal with instructors with restricted section access
342: if ($env{'request.course.sec'} !~ /^\s*$/) {
343: @selected_sections = ($env{'request.course.sec'});
344: }
345: return @selected_sections;
346: }
347:
348: #######################################################
349: #######################################################
350:
351: =pod
352:
353: =item §ion_and_enrollment_description
354:
355: Returns a string describing the currenly selected section(s) and
356: enrollment status.
357:
358: Inputs: mode = 'plaintext' or 'localized' (defaults to 'localized')
359: 'plaintext' is used for example in Excel spreadsheets.
360: Returns: scalar description string.
361:
362: =cut
363:
364: #######################################################
365: #######################################################
366: sub section_and_enrollment_description {
367: my ($mode) = @_;
368: if (! defined($mode)) { $mode = 'localized'; }
369: my @sections = &Apache::lonstatistics::get_selected_sections();
370: my $description;
371: if ($mode eq 'localized') {
372: $description = &mt('Unable to determine section and enrollment');
373: } elsif ($mode eq 'plaintext') {
374: $description = 'Unable to determine section and enrollment';
375: } else {
376: $description = 'Bad parameter passed to lonstatistics::section_and_enrollment_description';
377: &Apache::lonnet::logthis($description);
378: }
379: if (scalar(@sections) == 1 && $sections[0] ne 'all') {
380: if ($mode eq 'localized') {
381: $description = &mt('Section [_1]. [_2] enrollment status.',
382: $sections[0],$env{'form.Status'});
383: } elsif ($mode eq 'plaintext') {
384: $description = 'Section '.$sections[0].'. '.
385: $env{'form.Status'}.' enrollment status.';
386: }
387: } elsif (scalar(@sections) && $sections[0] eq 'all') {
388: if ($mode eq 'localized') {
389: $description = &mt('All sections. [_1] enrollment status.',
390: $env{'form.Status'});
391: } elsif ($mode eq 'plaintext') {
392: $description = 'All sections. '.
393: $env{'form.Status'}.' enrollment status.';
394: }
395: } elsif (scalar(@sections)) {
396: my $lastsection = pop(@sections);
397: if ($mode eq 'localized') {
398: $description = &mt('Sections [_1] and [_2]. [_3] enrollment status.',
399: join(', ',@sections),$lastsection,
400: $env{'form.Status'});
401: } elsif ($mode eq 'plaintext') {
402: $description =
403: 'Sections '.join(', ',@sections).' and '.$lastsection.'. '.
404: $env{'form.Status'}.' enrollment status.';
405: }
406: }
407: return $description;
408: }
409:
410: #######################################################
411: #######################################################
412:
413: =pod
414:
415: =item get_students
416:
417: Returns a list of the selected students
418:
419: =cut
420:
421: #######################################################
422: #######################################################
423: sub get_students {
424: if (! @Students) {
425: &PrepareClasslist()
426: }
427: return @Students;
428: }
429:
430: #######################################################
431: #######################################################
432:
433: =pod
434:
435: =item ¤t_student()
436:
437: Returns a pointer to a hash containing data about the currently
438: selected student.
439:
440: =cut
441:
442: #######################################################
443: #######################################################
444: sub current_student {
445: return $curr_student;
446: }
447:
448: #######################################################
449: #######################################################
450:
451: =pod
452:
453: =item &previous_student()
454:
455: Returns a pointer to a hash containing data about the student prior
456: in the list of students. Or something.
457:
458: =cut
459:
460: #######################################################
461: #######################################################
462: sub previous_student {
463: return $prev_student;
464: }
465:
466: #######################################################
467: #######################################################
468:
469: =pod
470:
471: =item &next_student()
472:
473: Returns a pointer to a hash containing data about the next student
474: to be viewed.
475:
476: =cut
477:
478: #######################################################
479: #######################################################
480: sub next_student {
481: return $next_student;
482: }
483:
484: ##############################################
485: ##############################################
486:
487: =pod
488:
489: =item &StudentDataSelect($elementname,$status,$numvisible,$selected)
490:
491: Returns html for a selection box allowing the user to choose one (or more)
492: of the fields of student data available (fullname, username, id, section, etc)
493:
494: =over 4
495:
496: =item $elementname The name of the HTML form element
497:
498: =item $status 'multiple' or 'single' selection box
499:
500: =item $numvisible The number of options to be visible
501:
502: =back
503:
504: =cut
505:
506: ##############################################
507: ##############################################
508: sub StudentDataSelect {
509: my ($elementname,$status,$numvisible)=@_;
510: if ($numvisible < 1) {
511: return;
512: }
513: #
514: # Build the form element
515: my $Str = "\n";
516: $Str .= '<select name="'.$elementname.'" ';
517: if ($status ne 'single') {
518: $Str .= 'multiple="true" ';
519: }
520: $Str .= 'size="'.$numvisible.'" >'."\n";
521: #
522: # Deal with 'all'
523: $Str .= ' <option value="all" ';
524: foreach (@SelectedStudentData) {
525: if ($_ eq 'all') {
526: $Str .= 'selected ';
527: last;
528: }
529: }
530: $Str .= ">all</option>\n";
531: #
532: # Loop through the student data fields
533: foreach my $item (@StudentDataOrder) {
534: $Str .= ' <option value="'.$item.'" ';
535: foreach (@SelectedStudentData) {
536: if ($item eq $_ ) {
537: $Str .= 'selected ';
538: last;
539: }
540: }
541: $Str .= '>'.$item."</option>\n";
542: }
543: $Str .= "</select>\n";
544: return $Str;
545: }
546:
547: #######################################################
548: #######################################################
549:
550: =pod
551:
552: =item &get_selected_maps($elementname)
553:
554: Input: Name of the <select> form element used to specify the maps.
555:
556: Returns: Array of symbs of selected maps or the description 'all'.
557: If form.$elementname does not exist, 'all' is returned.
558:
559: =cut
560:
561: #######################################################
562: #######################################################
563: sub get_selected_maps {
564: my ($elementname) = @_;
565: my @selected_maps =
566: &Apache::loncommon::get_env_multiple('form.'.$elementname);
567: @selected_maps = ('all') if (! @selected_maps);
568: foreach my $map (@selected_maps) {
569: if ($map eq 'all') {
570: @selected_maps = ('all');
571: last;
572: }
573: }
574: return @selected_maps;
575: }
576:
577:
578: #######################################################
579: #######################################################
580:
581: =pod
582:
583: =item &selected_sequences_with_assessments
584:
585: Retrieve the sequences which were selected by the user to show.
586:
587: Input: $mode: scalar. Either 'selected' or 'all'. If not specified,
588: 'selected' is used.
589:
590: Returns: an array containing a navmap object and navmap resources,
591: or an array containing a scalar with an error message.
592:
593: =cut
594:
595: #######################################################
596: #######################################################
597: sub selected_sequences_with_assessments {
598: my ($mode) = @_;
599: $mode = 'selected' if (! defined($mode));
600: my $navmap = Apache::lonnavmaps::navmap->new();
601: if (!defined($navmap)) {
602: return ('Can not open Coursemap');
603: }
604: #
605: my @sequences = $navmap->retrieveResources(undef,
606: sub { shift->is_map(); },1,0,1);
607: my @sequences_with_assessments;
608: for my $sequence ($navmap->getById('0.0'), @sequences) {
609: if ($navmap->hasResource($sequence,sub { shift->is_problem(); },0,1)){
610: push(@sequences_with_assessments,$sequence);
611: }
612: }
613: #
614: my @sequences_to_show;
615: foreach my $sequence (@sequences_with_assessments) {
616: if ($mode eq 'all') {
617: push (@sequences_to_show,$sequence);
618: } elsif ($mode eq 'selected') {
619: foreach my $map_symb (&get_selected_maps('Maps')) {
620: if ($sequence->symb eq $map_symb || $map_symb eq 'all'){
621: push (@sequences_to_show,$sequence);
622: last; # Only put it in once
623: }
624: }
625: }
626:
627: }
628: return $navmap,@sequences_to_show;
629: }
630:
631: ##############################################
632: ##############################################
633:
634: =pod
635:
636: =item &map_select($elementname,$status,$numvisible,$restriction)
637:
638: Returns html for a selection box allowing the user to choose one (or more)
639: of the sequences in the course. The values of the sequences are the symbs.
640: If the top sequence is selected, the value 'top' will result.
641:
642: =over 4
643:
644: =item $elementname The name of the HTML form element
645:
646: =item $status 'multiple' or 'single' selection box
647:
648: =item $numvisible The number of options to be visible
649:
650: =back
651:
652: =cut
653:
654: ##############################################
655: ##############################################
656: sub map_select {
657: my ($elementname,$status,$numvisible)=@_;
658: if ($numvisible < 1) {
659: return;
660: }
661: #
662: # Set up array of selected items
663: my @selected_maps = &get_selected_maps($elementname);
664: #
665: # Build the form element
666: my $form = "\n";
667: $form .= '<select name="'.$elementname.'" ';
668: if ($status ne 'single') {
669: $form .= 'multiple="true" ';
670: }
671: $form .= 'size="'.$numvisible.'" >'."\n";
672: #
673: # Put in option for 'all'
674: $form .= ' <option value="all" ';
675: if ($selected_maps[0] eq 'all') {
676: $form .= 'selected ';
677: }
678: $form .= ">all</option>\n";
679: #
680: # Loop through the sequences
681: my @sequences = &selected_sequences_with_assessments('all');
682: my $navmap;
683: if (!ref($sequences[0])) {
684: return $sequences[0];
685: } else {
686: $navmap = shift(@sequences);
687: }
688: foreach my $seq (@sequences){
689: $form .= ' <option value="'.$seq->symb.'" ';
690: foreach (@selected_maps) {
691: if ($seq->symb eq $_) {
692: $form .= 'selected ';
693: last;
694: }
695: }
696: $form .= '>'.$seq->compTitle."</option>\n";
697: }
698: $form .= "</select>\n";
699: return $form;
700: }
701:
702: ##############################################
703: ##############################################
704:
705: =pod
706:
707: =item &SectionSelect($elementname,$status,$numvisible)
708:
709: Returns html for a selection box allowing the user to choose one (or more)
710: of the sections in the course.
711:
712: Uses the package variables @Sections
713: =over 4
714:
715: =item $elementname The name of the HTML form element
716:
717: =item $status 'multiple' or 'single' selection box
718:
719: =item $numvisible The number of options to be visible
720:
721: =back
722:
723: =cut
724:
725: ##############################################
726: ##############################################
727: sub SectionSelect {
728: my ($elementname,$status,$numvisible)=@_;
729: if ($numvisible < 1) {
730: return;
731: }
732: #
733: # Make sure we have the data we need to continue
734: if (! @Sections) {
735: &PrepareClasslist()
736: }
737: #
738: # Build the form element
739: my $Str = "\n";
740: $Str .= '<select name="'.$elementname.'" ';
741: if ($status ne 'single') {
742: $Str .= 'multiple="true" ';
743: }
744: $Str .= 'size="'.$numvisible.'" >'."\n";
745: #
746: # Loop through the sequences
747: foreach my $s (@Sections) {
748: $Str .= ' <option value="'.$s.'" ';
749: foreach (&get_selected_sections()) {
750: if ($s eq $_) {
751: $Str .= 'selected ';
752: last;
753: }
754: }
755: $Str .= '>'.$s."</option>\n";
756: }
757: $Str .= "</select>\n";
758: return $Str;
759: }
760:
761: ##################################################
762: ##################################################
763: sub DisplayClasslist {
764: my ($r)=@_;
765: &Apache::lonhtmlcommon::add_breadcrumb
766: ({text=>'Select One Student'});
767: #
768: # Output some of the standard interface components
769: my $Str;
770: $Str .= &Apache::lonhtmlcommon::breadcrumbs(undef,'Select One Student');
771: $Str .= '<p><table cellspacing="5">'."\n";
772: $Str .= '<tr>';
773: $Str .= '<th align="center"><b>'.&mt('Sections').'</b></th>';
774: $Str .= '<th align="center"><b>'.&mt('Enrollment Status').'</b></th>';
775: $Str .= '</tr>'.$/;
776: $Str .= '<tr>';
777: $Str .= '<td>'.
778: &Apache::lonstatistics::SectionSelect('Section','multiple',5).
779: '</td>';
780: $Str .= '<td>'.
781: &Apache::lonhtmlcommon::StatusOptions(undef,undef,5).
782: '</td>';
783:
784: $Str .= '</tr>'.$/;
785: $Str .= '</table></p>';
786: $Str .= '<input type="submit" name="selectstudent" value="'.
787: &mt('Update Display').'" />';
788: $r->print($Str);
789: $r->rflush();
790: #
791: my @Fields = ('fullname','username','domain','id','section','status');
792: #
793: $Str = '';
794: my @selected_sections = &get_selected_sections();
795: if (! @Students) {
796: if ($selected_sections[0] eq 'all') {
797: if (lc($env{'form.Status'}) eq 'any') {
798: $Str .= '<h2>'.
799: &mt('There are no students in the course.').
800: '</h2>';
801: } elsif (lc($env{'form.Status'}) eq 'active') {
802: $Str .= '<h2>'.
803: &mt('There are no currently enrolled students in the course.').
804: '</h2>';
805: } elsif (lc($env{'form.Status'}) eq 'expired') {
806: $Str .= '<h2>'.
807: &mt('There are no previously enrolled students in the course.').
808: '</h2>';
809: }
810: } else {
811: my $sections;
812: if (lc($env{'form.Status'}) eq 'any') {
813: $Str .= '<h2>'.
814: &mt('There are no students in the selected sections.').
815: '</h2>';
816: } elsif (lc($env{'form.Status'}) eq 'active') {
817: $Str .= '<h2>'.
818: &mt('There are no currently enrolled students in the selected sections.').
819: '</h2>';
820: } elsif (lc($env{'form.Status'}) eq 'expired') {
821: $Str .= '<h2>'.
822: &mt('There are no previously enrolled students in the selected sections.').
823: '</h2>';
824: }
825: }
826: $Str.= '<a href="/adm/statistics?reportSelected=student_assessment">'.
827: &mt('Click here to return to the chart').'</a>';
828: $r->print($Str);
829: $r->rflush();
830: return;
831: }
832:
833: # "Click" is asinine but it is probably not my place to change the world.
834: $Str .= '<h2>Click on a students name or username to view their chart</h2>';
835: $Str .= '<table border="0"><tr><td bgcolor="#777777">'."\n";
836: $Str .= '<table border="0" cellpadding="3"><tr bgcolor="#e6ffff">'."\n";
837: foreach my $field (@Fields) {
838: $Str .= '<th><a href="/adm/statistics?'.
839: 'reportSelected=student_assessment&'.
840: 'selectstudent=1&'.
841: 'sort='.$field.'">'.&mt($field).
842: '</a></th>';
843: }
844: $Str .= '</tr>'."\n";
845: #
846: my $alternate = 0;
847: foreach my $student (@Students) { # @Students is a package variable
848: my $sname = $student->{'username'}.':'.$student->{'domain'};
849: if($alternate) {
850: $Str .= '<tr bgcolor="#ffffe6">';
851: } else {
852: $Str .= '<tr bgcolor="#ffffc6">';
853: }
854: $alternate = ($alternate + 1) % 2;
855: #
856: foreach my $field (@Fields) {
857: $Str .= '<td>';
858: if ($field eq 'fullname' || $field eq 'username') {
859: $Str .= '<a href="/adm/statistics?reportSelected=';
860: $Str .= &Apache::lonnet::escape('student_assessment');
861: $Str .= '&sort='.&Apache::lonnet::escape($env{'form.sort'});
862: $Str .= '&SelectedStudent=';
863: $Str .= &Apache::lonnet::escape($sname).'">';
864: $Str .= $student->{$field}.' ';
865: $Str .= '</a>';
866: } elsif ($field eq 'status') {
867: $Str .= &mt($student->{$field});
868: } else {
869: $Str .= $student->{$field};
870: }
871: $Str .= '</td>';
872: }
873: $Str .= "</tr>\n";
874: }
875: $Str .= '</table></td></tr></table>'."\n";
876: #
877: $r->print($Str);
878: $r->rflush();
879: #
880: return;
881: }
882:
883: ##############################################
884: ##############################################
885: sub CreateMainMenu {
886: #
887: # Define menu data
888: my @reports = ({ internal_name => 'problem_statistics',
889: name => &mt('Overall Problem Statistics'),
890: short_description =>
891: &mt('Student performance statistics on all problems.'),
892: },
893: { internal_name => 'problem_analysis',
894: name => &mt('Detailed Problem Analysis'),
895: short_description =>
896: &mt('Detailed statistics and graphs of student performance on problems.'),
897: },
898: { internal_name => 'submissiontime_analysis',
899: name => &mt('Submission Time Plots'),
900: short_description =>
901: &mt('Display and analysis of submission times on assessments.'),
902: },
903: { internal_name => 'student_submission_reports',
904: name => &mt('Student Submission Reports'),
905: short_description =>
906: &mt('Prepare reports of student submissions.'),
907: },
908: { internal_name => 'survey_reports',
909: name => &mt('Survey Reports'),
910: short_description =>
911: &mt('Prepare reports on survey results.'),
912: },
913: { internal_name => 'correct_problems_plot',
914: name => &mt('Correct Problems Plot'),
915: short_description =>
916: &mt('Display a histogram of student performance in the course.'),
917: },
918: # { internal_name => 'grading_analysis',
919: # name => &mt('Detailed Grading Analysis'),
920: # short_description =>
921: # &mt('Display statistics about who graded who.'),
922: # },
923: # { internal_name => 'student_assessment',
924: # name => &mt('Problem Status Chart'),
925: # short_description =>
926: # &mt('Brief view of each students performance in course.'),
927: # },
928: # 'percentage' => 'Correct-problems Plot',
929: # 'activitylog' => 'Activity Log',
930: );
931: #
932: # Create the menu
933: my $Str;
934: $Str .= '<h2>'.&mt('Please select a report to generate').'</h2>';
935: foreach my $reportdata (@reports) {
936: $Str .=' <h3><a href="/adm/statistics?reportSelected='.
937: $reportdata->{'internal_name'}.'" >'.
938: $reportdata->{'name'}."</a></h3>\n";
939: $Str .= ' '.(' 'x8).$reportdata->{'short_description'}.
940: "\n";
941: }
942: $Str .="</dl>\n";
943: #
944: return $Str;
945: }
946:
947: ##############################################
948: ##############################################
949: sub handler {
950: my $r=shift;
951: my $c = $r->connection();
952: #
953: # Check for overloading
954: my $loaderror=&Apache::lonnet::overloaderror($r);
955: if ($loaderror) { return $loaderror; }
956: $loaderror=
957: &Apache::lonnet::overloaderror($r,
958: $env{'course.'.$env{'request.course.id'}.'.home'});
959: if ($loaderror) { return $loaderror; }
960: #
961: # Check for access
962: if (! &Apache::lonnet::allowed('vgr',$env{'request.course.id'})) {
963: $env{'user.error.msg'}=
964: $r->uri.":vgr:0:0:Cannot view grades for complete course";
965: if (! &Apache::lonnet::allowed('vgr',
966: $env{'request.course.id'}.'/'.$env{'request.course.sec'})) {
967: $env{'user.error.msg'}=
968: $r->uri.":vgr:0:0:Cannot view grades with given role";
969: return HTTP_NOT_ACCEPTABLE;
970: }
971: }
972: #
973: # Send the header
974: &Apache::loncommon::no_cache($r);
975: &Apache::loncommon::content_type($r,'text/html');
976: $r->send_http_header;
977: if ($r->header_only) { return OK; }
978: #
979: # Extract form elements from query string
980: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
981: ['sort','reportSelected',
982: 'SelectedStudent']);
983: #
984: # Give the LON-CAPA page header
985: my $style = <<ENDSTYLE;
986: <style type="text/css">
987: ul.sub_studentans { list-style-type: none }
988: ul.sub_correctans { list-style-type: none }
989: tr.even { background-color: \#CCCCCC }
990: td.essay { border: 1px solid gray; }
991: </style>
992: ENDSTYLE
993: my $html=&Apache::lonxml::xmlbegin();
994: $r->print($html.'<head><title>'.
995: &mt('Course Statistics and Charts').
996: '</title>'.$style.
997: "</head>\n".
998: &Apache::loncommon::bodytag('Course Statistics and Charts'));
999: $r->rflush();
1000: #
1001: # Either print out a menu for them or send them to a report
1002: &Apache::lonhtmlcommon::clear_breadcrumbs();
1003: &Apache::lonhtmlcommon::add_breadcrumb({href=>'/adm/statistics',
1004: title=>'Statistics',
1005: text =>'Statistics',
1006: faq=>139,
1007: bug=>'Statistics and Charts'});
1008: if (! exists($env{'form.reportSelected'}) ||
1009: $env{'form.reportSelected'} eq '') {
1010: $r->print(&Apache::lonhtmlcommon::breadcrumbs
1011: (undef,&mt('Statistics Main Page')).
1012: &CreateMainMenu());
1013: } else {
1014: #
1015: if (! &Apache::lonmysql::verify_sql_connection()) {
1016: my $serveradmin = $r->dir_config('lonAdmEMail');
1017: $r->print('<h2><font color="Red">'.
1018: &mt('Unable to connect to database!').
1019: '</font></h2>');
1020: $r->print('<p>'.
1021: &mt('Please notify the server administrator ').
1022: '<b>'.$serveradmin.'</b></p>');
1023: $r->print('<p>'.
1024: &mt('Course Statistics and Charts cannot be '.
1025: 'retrieved until the database is restarted. '.
1026: 'Your data is intact but cannot be displayed '.
1027: 'at this time.').'</p>');
1028: $r->print('</body></html>');
1029: return;
1030: }
1031: #
1032: # Clean out the caches
1033: if (exists($env{'form.ClearCache'})) {
1034: &Apache::loncoursedata::delete_caches($env{'requres.course.id'});
1035: }
1036: #
1037: # Begin form output
1038: $r->print('<form name="Statistics" ');
1039: $r->print('method="post" action="/adm/statistics">');
1040: $r->rflush();
1041: #
1042: my $GoToPage = $env{'form.reportSelected'};
1043: #
1044: $r->print('<input type="hidden" name="reportSelected" value="'.
1045: $GoToPage.'">');
1046: if($GoToPage eq 'activitylog') {
1047: # &Apache::lonproblemstatistics::Activity();
1048: } elsif($GoToPage eq 'problem_statistics') {
1049: &Apache::lonhtmlcommon::add_breadcrumb
1050: ({href=>'/adm/statistics?reportselected=problem_statistics',
1051: text=>'Overall Problem Statistics'});
1052: &Apache::lonproblemstatistics::BuildProblemStatisticsPage($r,$c);
1053: } elsif($GoToPage eq 'problem_analysis') {
1054: &Apache::lonhtmlcommon::add_breadcrumb
1055: ({href=>'/adm/statistics?reportselected=problem_analysis',
1056: text=>'Detailed Problem Analysis'});
1057: &Apache::lonproblemanalysis::BuildProblemAnalysisPage($r,$c);
1058: } elsif($GoToPage eq 'submissiontime_analysis') {
1059: &Apache::lonhtmlcommon::add_breadcrumb
1060: ({href=>
1061: '/adm/statistics?reportselected=submissiontime_analysis',
1062: text=>'Submission Time Plots'});
1063: &Apache::lonsubmissiontimeanalysis::BuildSubmissionTimePage($r,$c);
1064: } elsif($GoToPage eq 'student_submission_reports') {
1065: &Apache::lonhtmlcommon::add_breadcrumb
1066: ({href=>
1067: '/adm/statistics?reportselected=student_submission_reports',
1068: text=>'Student Submission Reports'});
1069: &Apache::lonstudentsubmissions::BuildStudentSubmissionsPage($r,$c);
1070: } elsif($GoToPage eq 'survey_reports') {
1071: &Apache::lonhtmlcommon::add_breadcrumb
1072: ({href=>
1073: '/adm/statistics?reportselected=survey_reports',
1074: text=>'Survey Reports'});
1075: &Apache::lonsurveyreports::BuildSurveyReportsPage($r,$c);
1076: } elsif($GoToPage eq 'correct_problems_plot') {
1077: &Apache::lonhtmlcommon::add_breadcrumb
1078: ({href=>'/adm/statistics?reportselected=correct_problems_plot',
1079: text=>'Correct Problems Plot'});
1080: &Apache::loncorrectproblemplot::BuildCorrectProblemsPage($r,$c);
1081: } elsif($GoToPage eq 'student_assessment') {
1082: &Apache::lonhtmlcommon::clear_breadcrumbs();
1083: &Apache::lonhtmlcommon::add_breadcrumb
1084: ({href=>'/adm/statistics?reportselected=student_assessment',
1085: text=>'Chart'});
1086: &Apache::lonstudentassessment::BuildStudentAssessmentPage($r,$c);
1087: } elsif($GoToPage eq 'grading_analysis') {
1088: &Apache::lonhtmlcommon::add_breadcrumb
1089: ({href=>'/adm/statistics?reportselected=grading_anaylsis',
1090: text=>'Grading Analysis'});
1091: &Apache::longradinganalysis::build_grading_analysis_page($r,$c);
1092: }
1093: #
1094: $r->print("</form>\n");
1095: }
1096: $r->print("</body>\n</html>\n");
1097: $r->rflush();
1098: #
1099: return OK;
1100: }
1101:
1102: 1;
1103:
1104: #######################################################
1105: #######################################################
1106:
1107: =pod
1108:
1109: =back
1110:
1111: =cut
1112:
1113: #######################################################
1114: #######################################################
1115:
1116: __END__
1117:
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