1: # The LearningOnline Network with CAPA
2: #
3: # $Id: lonstatistics.pm,v 1.105 2004/06/24 19:17:49 matthew 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: @SelectedSections
54: %StudentData
55: @StudentDataOrder
56: @SelectedStudentData
57: $top_map
58: @Sequences
59: @SelectedMaps
60: @Assessments
61: $enrollment_status);
62:
63: use Apache::lonnet();
64: use Apache::lonhomework;
65: use Apache::loncommon;
66: use Apache::loncoursedata;
67: use Apache::lonhtmlcommon;
68: use Apache::lonmysql;
69: use Apache::lonlocal;
70: use Time::HiRes;
71: #
72: # Statistics Packages
73: use Apache::lonproblemanalysis();
74: use Apache::lonsubmissiontimeanalysis();
75: use Apache::loncorrectproblemplot();
76: use Apache::lonproblemstatistics();
77: use Apache::lonstudentassessment();
78: use Apache::lonpercentage;
79: use Apache::lonstudentsubmissions();
80: use Apache::lonsurveyreports();
81:
82: #######################################################
83: #######################################################
84:
85: =pod
86:
87: =item Package Variables
88:
89: =item @FullClasslist The full classlist
90:
91: =item @Students The students we are concerned with for this invocation
92:
93: =item @Sections The sections available in this class
94:
95: =item $curr_student The student currently being examined
96:
97: =item $prev_student The student previous in the classlist
98:
99: =item $next_student The student next in the classlist
100:
101: =over
102:
103: =cut
104:
105: #######################################################
106: #######################################################
107: #
108: # Classlist variables
109: #
110: my $curr_student;
111: my $prev_student;
112: my $next_student;
113:
114: #######################################################
115: #######################################################
116:
117: =pod
118:
119: =item &clear_classlist_variables()
120:
121: undef the following package variables:
122:
123: =over
124:
125: =item @FullClasslist
126:
127: =item @Students
128:
129: =item @Sections
130:
131: =item @SelectedSections
132:
133: =item %StudentData
134:
135: =item @StudentDataOrder
136:
137: =item @SelectedStudentData
138:
139: =item $curr_student
140:
141: =item $prev_student
142:
143: =item $next_student
144:
145: =back
146:
147: =cut
148:
149: #######################################################
150: #######################################################
151: sub clear_classlist_variables {
152: undef(@FullClasslist);
153: undef(@Students);
154: undef(@Sections);
155: undef(@SelectedSections);
156: undef(%StudentData);
157: undef(@SelectedStudentData);
158: undef($curr_student);
159: undef($prev_student);
160: undef($next_student);
161: }
162:
163: #######################################################
164: #######################################################
165:
166: =pod
167:
168: =item &PrepareClasslist()
169:
170: Build up the classlist information. The classlist information is kept in
171: the following package variables:
172:
173: =over
174:
175: =item @FullClasslist
176:
177: =item @Students
178:
179: =item @Sections
180:
181: =item @SelectedSections
182:
183: =item %StudentData
184:
185: =item @SelectedStudentData
186:
187: =item $curr_student
188:
189: =item $prev_student
190:
191: =item $next_student
192:
193: =back
194:
195: $curr_student, $prev_student, and $next_student may not be defined, depending
196: upon the calling context.
197:
198: =cut
199:
200: #######################################################
201: #######################################################
202: sub PrepareClasslist {
203: my %Sections;
204: &clear_classlist_variables();
205: #
206: # Retrieve the classlist
207: my $cid = $ENV{'request.course.id'};
208: my $cdom = $ENV{'course.'.$cid.'.domain'};
209: my $cnum = $ENV{'course.'.$cid.'.num'};
210: my ($classlist,$field_names) = &Apache::loncoursedata::get_classlist($cid,
211: $cdom,$cnum);
212: if (exists($ENV{'form.Section'})) {
213: if (ref($ENV{'form.Section'})) {
214: @SelectedSections = @{$ENV{'form.Section'}};
215: } elsif ($ENV{'form.Section'} !~ /^\s*$/) {
216: @SelectedSections = ($ENV{'form.Section'});
217: }
218: }
219: @SelectedSections = ('all') if (! @SelectedSections);
220: foreach (@SelectedSections) {
221: if ($_ eq 'all') {
222: @SelectedSections = ('all');
223: }
224: }
225: #
226: # Deal with instructors with restricted section access
227: if ($ENV{'request.course.sec'} !~ /^\s*$/) {
228: @SelectedSections = ($ENV{'request.course.sec'});
229: }
230: #
231: # Set up %StudentData
232: @StudentDataOrder = qw/fullname username domain id section status/;
233: foreach my $field (@StudentDataOrder) {
234: $StudentData{$field}->{'title'} = $field;
235: $StudentData{$field}->{'base_width'} = length($field);
236: $StudentData{$field}->{'width'} =
237: $StudentData{$field}->{'base_width'};
238: }
239: #
240: # get the status requested
241: $enrollment_status = 'Active';
242: $enrollment_status = $ENV{'form.Status'} if (exists($ENV{'form.Status'}));
243: #
244: # Process the classlist
245: while (my ($student,$student_data) = each (%$classlist)) {
246: my $studenthash = ();
247: for (my $i=0; $i< scalar(@$field_names);$i++) {
248: my $field = $field_names->[$i];
249: # Store the data
250: $studenthash->{$field}=$student_data->[$i];
251: # Keep track of the width of the fields
252: next if (! exists($StudentData{$field}));
253: my $length = length($student_data->[$i]);
254: if ($StudentData{$field}->{'width'} < $length) {
255: $StudentData{$field}->{'width'} = $length;
256: }
257: }
258: push (@FullClasslist,$studenthash);
259: #
260: # Build up a list of sections
261: my $section = $studenthash->{'section'};
262: if (! defined($section) || $section =~/^\s*$/ || $section == -1) {
263: $studenthash->{'section'} = 'none';
264: $section = $studenthash->{'section'};
265: }
266: $Sections{$section}++;
267: #
268: # Only put in the list those students we are interested in
269: foreach my $sect (@SelectedSections) {
270: if ( (($sect eq 'all') ||
271: ($section eq $sect)) &&
272: (($studenthash->{'status'} eq $enrollment_status) ||
273: ($enrollment_status eq 'Any'))
274: ){
275: push (@Students,$studenthash);
276: last;
277: }
278: }
279: }
280: #
281: # Put the consolidated section data in the right place
282: if ($ENV{'request.course.sec'} !~ /^\s*$/) {
283: @Sections = ($ENV{'request.course.sec'});
284: } else {
285: @Sections = sort {$a cmp $b} keys(%Sections);
286: unshift(@Sections,'all'); # Put 'all' at the front of the list
287: }
288: #
289: # Sort the Students
290: my $sortby = 'fullname';
291: $sortby = $ENV{'form.sort'} if (exists($ENV{'form.sort'}));
292: my @TmpStudents = sort { $a->{$sortby} cmp $b->{$sortby} ||
293: $a->{'fullname'} cmp $b->{'fullname'} } @Students;
294: @Students = @TmpStudents;
295: #
296: # Now deal with that current student thing....
297: $curr_student = undef;
298: if (exists($ENV{'form.SelectedStudent'})) {
299: my ($current_uname,$current_dom) =
300: split(':',$ENV{'form.SelectedStudent'});
301: my $i;
302: for ($i = 0; $i<=$#Students; $i++) {
303: next if (($Students[$i]->{'username'} ne $current_uname) ||
304: ($Students[$i]->{'domain'} ne $current_dom));
305: $curr_student = $Students[$i];
306: last; # If we get here, we have our student.
307: }
308: if (defined($curr_student)) {
309: if ($i == 0) {
310: $prev_student = undef;
311: } else {
312: $prev_student = $Students[$i-1];
313: }
314: if ($i == $#Students) {
315: $next_student = undef;
316: } else {
317: $next_student = $Students[$i+1];
318: }
319: }
320: }
321: #
322: if (exists($ENV{'form.StudentData'})) {
323: if (ref($ENV{'form.StudentData'}) eq 'ARRAY') {
324: @SelectedStudentData = @{$ENV{'form.StudentData'}};
325: } else {
326: @SelectedStudentData = ($ENV{'form.StudentData'});
327: }
328: } else {
329: @SelectedStudentData = ('username');
330: }
331: foreach (@SelectedStudentData) {
332: if ($_ eq 'all') {
333: @SelectedStudentData = ('all');
334: last;
335: }
336: }
337: #
338: return;
339: }
340:
341:
342: #######################################################
343: #######################################################
344:
345: =pod
346:
347: =item get_students
348:
349: Returns a list of the selected students
350:
351: =cut
352:
353: #######################################################
354: #######################################################
355: sub get_students {
356: if (! @Students) {
357: &PrepareClasslist()
358: }
359: return @Students;
360: }
361:
362: #######################################################
363: #######################################################
364:
365: =pod
366:
367: =item ¤t_student()
368:
369: Returns a pointer to a hash containing data about the currently
370: selected student.
371:
372: =cut
373:
374: #######################################################
375: #######################################################
376: sub current_student {
377: return $curr_student;
378: }
379:
380: #######################################################
381: #######################################################
382:
383: =pod
384:
385: =item &previous_student()
386:
387: Returns a pointer to a hash containing data about the student prior
388: in the list of students. Or something.
389:
390: =cut
391:
392: #######################################################
393: #######################################################
394: sub previous_student {
395: return $prev_student;
396: }
397:
398: #######################################################
399: #######################################################
400:
401: =pod
402:
403: =item &next_student()
404:
405: Returns a pointer to a hash containing data about the next student
406: to be viewed.
407:
408: =cut
409:
410: #######################################################
411: #######################################################
412: sub next_student {
413: return $next_student;
414: }
415:
416: #######################################################
417: #######################################################
418:
419: =pod
420:
421: =item &clear_sequence_variables()
422:
423: =cut
424:
425: #######################################################
426: #######################################################
427: sub clear_sequence_variables {
428: undef($top_map);
429: undef(@Sequences);
430: undef(@Assessments);
431: }
432:
433: #######################################################
434: #######################################################
435:
436: =pod
437:
438: =item &SetSelectedMaps($elementname)
439:
440: Sets the @SelectedMaps array from $ENV{'form.'.$elementname};
441:
442: =cut
443:
444: #######################################################
445: #######################################################
446: sub SetSelectedMaps {
447: my $elementname = shift;
448: if (exists($ENV{'form.'.$elementname})) {
449: if (ref($ENV{'form.'.$elementname})) {
450: @SelectedMaps = @{$ENV{'form.'.$elementname}};
451: } else {
452: @SelectedMaps = ($ENV{'form.'.$elementname});
453: }
454: } else {
455: @SelectedMaps = ('all');
456: }
457: }
458:
459:
460: #######################################################
461: #######################################################
462:
463: =pod
464:
465: =item &Sequences_with_Assess()
466:
467: Returns an array containing the subset of @Sequences which contain
468: assessments.
469:
470: =cut
471:
472: #######################################################
473: #######################################################
474: sub Sequences_with_Assess {
475: my ($mode) = @_;
476: $mode = 'selected' if (! defined($mode));
477: my @Sequences_to_Show;
478: foreach my $sequence (@Sequences) {
479: next if ($sequence->{'num_assess'} < 1);
480: if ($mode eq 'all') {
481: push (@Sequences_to_Show,$sequence);
482: } elsif ($mode eq 'selected') {
483: foreach my $map_symb (@SelectedMaps) {
484: if ($sequence->{'symb'} eq $map_symb || $map_symb eq 'all'){
485: push (@Sequences_to_Show,$sequence);
486: last; # Only put it in once
487: }
488: }
489: }
490:
491: }
492: return @Sequences_to_Show;
493: }
494:
495: #######################################################
496: #######################################################
497:
498: =pod
499:
500: =item &PrepareCourseData($r)
501:
502: =cut
503:
504: #######################################################
505: #######################################################
506: sub PrepareCourseData {
507: my ($r) = @_;
508: &clear_sequence_variables();
509: my ($top,$sequences,$assessments) =
510: &Apache::loncoursedata::get_sequence_assessment_data();
511: if (! defined($top) || ! ref($top)) {
512: # There has been an error, better report it
513: &Apache::lonnet::logthis('top is undefined');
514: return;
515: }
516: $top_map = $top if (ref($top));
517: @Sequences = @{$sequences} if (ref($sequences) eq 'ARRAY');
518: @Assessments = @{$assessments} if (ref($assessments) eq 'ARRAY');
519: return;
520: }
521:
522: #######################################################
523: #######################################################
524:
525: =pod
526:
527: =item &log_sequence($sequence,$recursive,$padding)
528:
529: Write data about the sequence to a logfile. If $recursive is not
530: undef the data is written recursively. $padding is used for recursive
531: calls.
532:
533: =cut
534:
535: #######################################################
536: #######################################################
537: sub log_sequence {
538: my ($seq,$recursive,$padding) = @_;
539: $padding = '' if (! defined($padding));
540: if (ref($seq) ne 'HASH') {
541: &Apache::lonnet::logthis('log_sequence passed bad sequnce');
542: return;
543: }
544: &Apache::lonnet::logthis($padding.'sequence '.$seq->{'title'});
545: while (my($key,$value) = each(%$seq)) {
546: next if ($key eq 'contents');
547: if (ref($value) eq 'ARRAY') {
548: for (my $i=0;$i< scalar(@$value);$i++) {
549: &Apache::lonnet::logthis($padding.$key.'['.$i.']='.
550: $value->[$i]);
551: }
552: } else {
553: &Apache::lonnet::logthis($padding.$key.'='.$value);
554: }
555: }
556: if (defined($recursive)) {
557: &Apache::lonnet::logthis($padding.'-'x20);
558: &Apache::lonnet::logthis($padding.'contains:');
559: foreach my $item (@{$seq->{'contents'}}) {
560: if ($item->{'type'} eq 'container') {
561: &log_sequence($item,$recursive,$padding.' ');
562: } else {
563: &Apache::lonnet::logthis($padding.'title = '.$item->{'title'});
564: while (my($key,$value) = each(%$item)) {
565: next if ($key eq 'title');
566: if (ref($value) eq 'ARRAY') {
567: for (my $i=0;$i< scalar(@$value);$i++) {
568: &Apache::lonnet::logthis($padding.$key.'['.$i.']='.
569: $value->[$i]);
570: }
571: } else {
572: &Apache::lonnet::logthis($padding.$key.'='.$value);
573: }
574: }
575: }
576: }
577: &Apache::lonnet::logthis($padding.'end contents of '.$seq->{'title'});
578: &Apache::lonnet::logthis($padding.'-'x20);
579: }
580: return;
581: }
582:
583: ##############################################
584: ##############################################
585:
586: =pod
587:
588: =item &StudentDataSelect($elementname,$status,$numvisible,$selected)
589:
590: Returns html for a selection box allowing the user to choose one (or more)
591: of the fields of student data available (fullname, username, id, section, etc)
592:
593: =over 4
594:
595: =item $elementname The name of the HTML form element
596:
597: =item $status 'multiple' or 'single' selection box
598:
599: =item $numvisible The number of options to be visible
600:
601: =back
602:
603: =cut
604:
605: ##############################################
606: ##############################################
607: sub StudentDataSelect {
608: my ($elementname,$status,$numvisible)=@_;
609: if ($numvisible < 1) {
610: return;
611: }
612: #
613: # Build the form element
614: my $Str = "\n";
615: $Str .= '<select name="'.$elementname.'" ';
616: if ($status ne 'single') {
617: $Str .= 'multiple="true" ';
618: }
619: $Str .= 'size="'.$numvisible.'" >'."\n";
620: #
621: # Deal with 'all'
622: $Str .= ' <option value="all" ';
623: foreach (@SelectedStudentData) {
624: if ($_ eq 'all') {
625: $Str .= 'selected ';
626: last;
627: }
628: }
629: $Str .= ">all</option>\n";
630: #
631: # Loop through the student data fields
632: foreach my $item (@StudentDataOrder) {
633: $Str .= ' <option value="'.$item.'" ';
634: foreach (@SelectedStudentData) {
635: if ($item eq $_ ) {
636: $Str .= 'selected ';
637: last;
638: }
639: }
640: $Str .= '>'.$item."</option>\n";
641: }
642: $Str .= "</select>\n";
643: return $Str;
644: }
645:
646: ##############################################
647: ##############################################
648:
649: =pod
650:
651: =item &MapSelect($elementname,$status,$numvisible,$restriction)
652:
653: Returns html for a selection box allowing the user to choose one (or more)
654: of the sequences in the course. The values of the sequences are the symbs.
655: If the top sequence is selected, the value 'top' will result.
656:
657: =over 4
658:
659: =item $elementname The name of the HTML form element
660:
661: =item $status 'multiple' or 'single' selection box
662:
663: =item $numvisible The number of options to be visible
664:
665: =item $restriction Code reference to subroutine which returns true or
666: false. The code must expect a reference to a sequence data structure.
667:
668: =back
669:
670: =cut
671:
672: ##############################################
673: ##############################################
674: sub MapSelect {
675: my ($elementname,$status,$numvisible,$restriction)=@_;
676: if ($numvisible < 1) {
677: return;
678: }
679: #
680: # Set up array of selected items
681: &SetSelectedMaps($elementname);
682: #
683: # Set up the restriction call
684: if (! defined($restriction)) {
685: $restriction = sub { 1; };
686: }
687: #
688: # Build the form element
689: my $Str = "\n";
690: $Str .= '<select name="'.$elementname.'" ';
691: if ($status ne 'single') {
692: $Str .= 'multiple="true" ';
693: }
694: $Str .= 'size="'.$numvisible.'" >'."\n";
695: #
696: # Deal with 'all'
697: foreach (@SelectedMaps) {
698: if ($_ eq 'all') {
699: @SelectedMaps = ('all');
700: last;
701: }
702: }
703: #
704: # Put in option for 'all'
705: $Str .= ' <option value="all" ';
706: foreach (@SelectedMaps) {
707: if ($_ eq 'all') {
708: $Str .= 'selected ';
709: last;
710: }
711: }
712: $Str .= ">all</option>\n";
713: #
714: # Loop through the sequences
715: foreach my $seq (@Sequences) {
716: next if (! $restriction->($seq));
717: $Str .= ' <option value="'.$seq->{'symb'}.'" ';
718: foreach (@SelectedMaps) {
719: if ($seq->{'symb'} eq $_) {
720: $Str .= 'selected ';
721: last;
722: }
723: }
724: $Str .= '>'.$seq->{'title'}."</option>\n";
725: }
726: $Str .= "</select>\n";
727: return $Str;
728: }
729:
730: ##############################################
731: ##############################################
732:
733: =pod
734:
735: =item &SectionSelect($elementname,$status,$numvisible)
736:
737: Returns html for a selection box allowing the user to choose one (or more)
738: of the sections in the course.
739:
740: Uses the package variables @Sections and @SelectedSections
741: =over 4
742:
743: =item $elementname The name of the HTML form element
744:
745: =item $status 'multiple' or 'single' selection box
746:
747: =item $numvisible The number of options to be visible
748:
749: =back
750:
751: =cut
752:
753: ##############################################
754: ##############################################
755: sub SectionSelect {
756: my ($elementname,$status,$numvisible)=@_;
757: if ($numvisible < 1) {
758: return;
759: }
760: #
761: # Make sure we have the data we need to continue
762: if (! @Sections) {
763: &PrepareClasslist()
764: }
765: #
766: # Build the form element
767: my $Str = "\n";
768: $Str .= '<select name="'.$elementname.'" ';
769: if ($status ne 'single') {
770: $Str .= 'multiple="true" ';
771: }
772: $Str .= 'size="'.$numvisible.'" >'."\n";
773: #
774: # Loop through the sequences
775: foreach my $s (@Sections) {
776: $Str .= ' <option value="'.$s.'" ';
777: foreach (@SelectedSections) {
778: if ($s eq $_) {
779: $Str .= 'selected ';
780: last;
781: }
782: }
783: $Str .= '>'.$s."</option>\n";
784: }
785: $Str .= "</select>\n";
786: return $Str;
787: }
788:
789: #######################################################
790: #######################################################
791:
792: =pod
793:
794: =item &CreateAndParseOutputSelector()
795:
796: Construct a selection list of options for output and parse output selections.
797:
798: =cut
799:
800: #######################################################
801: #######################################################
802: sub OutputDescriptions {
803: my (@OutputOptions) = @_;
804: my $Str = '';
805: $Str .= "<h2>Output Modes</h2>\n";
806: $Str .= "<dl>\n";
807: foreach my $outputmode (@OutputOptions) {
808: $Str .=" <dt>".$outputmode->{'name'}."</dt>\n";
809: $Str .=" <dd>".$outputmode->{'description'}."</dd>\n";
810: }
811: $Str .= "</dl>\n";
812: return $Str;
813: }
814:
815: sub CreateAndParseOutputSelector {
816: my ($elementname,$default,@OutputOptions) = @_;
817: my $output_mode;
818: my $show;
819: my $Str = '';
820: #
821: # Format for output options is 'mode, restrictions';
822: my $selected = $default;
823: if (exists($ENV{'form.'.$elementname})) {
824: if (ref($ENV{'form.'.$elementname} eq 'ARRAY')) {
825: $selected = $ENV{'form.'.$elementname}->[0];
826: } else {
827: $selected = $ENV{'form.'.$elementname};
828: }
829: }
830: #
831: # Set package variables describing output mode
832: $output_mode = 'html';
833: $show = 'all';
834: foreach my $option (@OutputOptions) {
835: next if ($option->{'value'} ne $selected);
836: $output_mode = $option->{'mode'};
837: $show = $option->{'show'};
838: }
839: #
840: # Build the form element
841: $Str = qq/<select size="5" name="$elementname">/;
842: foreach my $option (@OutputOptions) {
843: if (exists($option->{'special'}) &&
844: $option->{'special'} =~ /do not show/) {
845: next;
846: }
847: $Str .= "\n".' <option value="'.$option->{'value'}.'"';
848: $Str .= " selected " if ($option->{'value'} eq $selected);
849: $Str .= ">".&mt($option->{'name'})."<\/option>";
850: }
851: $Str .= "\n</select>";
852: return ($Str,$output_mode,$show);
853: }
854:
855: ###############################################
856: ###############################################
857:
858: =pod
859:
860: =item &Gather_Student_Data()
861:
862: Ensures all student data is up to date.
863:
864: =cut
865:
866: ###############################################
867: ###############################################
868: sub Gather_Student_Data {
869: my ($r) = @_;
870: my $c = $r->connection();
871: #
872: &Apache::loncoursedata::clear_internal_caches();
873: #
874: my @Sequences = &Apache::lonstatistics::Sequences_with_Assess();
875: #
876: my @Students = @Apache::lonstatistics::Students;
877: #
878: # Open the progress window
879: my %prog_state=&Apache::lonhtmlcommon::Create_PrgWin
880: ($r,'Statistics Compilation Status',
881: 'Statistics Compilation Progress', scalar(@Students));
882: #
883: while (my $student = shift @Students) {
884: return if ($c->aborted());
885: my ($status,undef) = &Apache::loncoursedata::ensure_current_data
886: ($student->{'username'},$student->{'domain'},
887: $ENV{'request.course.id'});
888: &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,
889: &mt('last student'));
890: }
891: &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
892: $r->rflush();
893: }
894:
895: ###############################################
896: ###############################################
897:
898: =pod
899:
900: =item &Gather_Full_Student_Data()
901:
902: Ensures all student data is up to date.
903:
904: =cut
905:
906: ###############################################
907: ###############################################
908: sub Gather_Full_Student_Data {
909: my ($r,$formname,$inputname) = @_;
910: my $status_type;
911: if (defined($formname)) {
912: $status_type = 'inline';
913: } else {
914: $status_type = 'popup';
915: }
916: my $c = $r->connection();
917: #
918: &Apache::loncoursedata::clear_internal_caches();
919: #
920: my @Students = @Apache::lonstatistics::Students;
921: #
922: # Open the progress window
923: my %prog_state=&Apache::lonhtmlcommon::Create_PrgWin
924: ($r,&mt('Student Data Compilation Status'),
925: &mt('Student Data Compilation Progress'), scalar(@Students),
926: $status_type,undef,$formname,$inputname);
927: #
928: while (my $student = shift @Students) {
929: return if ($c->aborted());
930: my ($status,undef) = &Apache::loncoursedata::ensure_current_full_data
931: ($student->{'username'},$student->{'domain'},
932: $ENV{'request.course.id'});
933: &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,
934: &mt('last student'));
935: }
936: &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
937: $r->rflush();
938: }
939:
940: ##################################################
941: ##################################################
942: sub DisplayClasslist {
943: my ($r)=@_;
944: #
945: # Output some of the standard interface components
946: my $Str;
947: $Str .= '<p><table cellspacing="5">'."\n";
948: $Str .= '<tr>';
949: $Str .= '<th align="center"><b>'.&mt('Sections').'</b></th>';
950: $Str .= '<th align="center"><b>'.&mt('Enrollment Status').'</b></th>';
951: $Str .= '</tr>'.$/;
952: $Str .= '<tr>';
953: $Str .= '<td>'.
954: &Apache::lonstatistics::SectionSelect('Section','multiple',5).
955: '</td>';
956: $Str .= '<td>'.
957: &Apache::lonhtmlcommon::StatusOptions(undef,undef,5).
958: '</td>';
959:
960: $Str .= '</tr>'.$/;
961: $Str .= '</table></p>';
962: $Str .= '<input type="submit" name="selectstudent" value="'.
963: &mt('Update Display').'" />';
964: $r->print($Str);
965: $r->rflush();
966: #
967: my @Fields = ('fullname','username','domain','id','section','status');
968: #
969: $Str = '';
970: if (! @Students) {
971: if ($SelectedSections[0] eq 'all') {
972: if (lc($ENV{'form.Status'}) eq 'any') {
973: $Str .= '<h2>There are no students in the course.</h2>';
974: } elsif (lc($ENV{'form.Status'}) eq 'active') {
975: $Str .= '<h2>There are no currently enrolled students in '.
976: 'the course.</h2>';
977: } elsif (lc($ENV{'form.Status'}) eq 'expired') {
978: $Str .= '<h2>There are no previously enrolled '.
979: 'students in the course.</h2>';
980: }
981: } else {
982: my $sections;
983: if (@SelectedSections == 1) {
984: $sections = 'section '.$SelectedSections[0];
985: } elsif (@SelectedSections > 2) {
986: $sections = 'sections '.join(', ',@SelectedSections);
987: $sections =~ s/, ([^,])*$/, and $1/;
988: } else {
989: $sections = 'sections '.join(' and ',@SelectedSections);
990: }
991: if (lc($ENV{'form.Status'}) eq 'any') {
992: $Str .= '<h2>There are no students in '.$sections.'.</h2>';
993: } elsif (lc($ENV{'form.Status'}) eq 'active') {
994: $Str .= '<h2>There are no currently enrolled students '.
995: 'in '.$sections.'.</h2>';
996: } elsif (lc($ENV{'form.Status'}) eq 'expired') {
997: $Str .= '<h2>There are no previously enrolled students '.
998: 'in '.$sections.'.</h2>';
999: }
1000: }
1001: $Str.= '<a href="/adm/statistics?reportSelected=student_assessment">'.
1002: 'Return to the chart.</a>';
1003: $r->print($Str);
1004: $r->rflush();
1005: return;
1006: }
1007:
1008: # "Click" is asinine but it is probably not my place to change the world.
1009: $Str .= '<h2>Click on a students name or username to view their chart</h2>';
1010: $Str .= '<table border="0"><tr><td bgcolor="#777777">'."\n";
1011: $Str .= '<table border="0" cellpadding="3"><tr bgcolor="#e6ffff">'."\n";
1012: foreach my $field (@Fields) {
1013: $Str .= '<th><a href="/adm/statistics?'.
1014: 'reportSelected=student_assessment&'.
1015: 'selectstudent=1&'.
1016: 'sort='.$field.'">'.$field.
1017: '</a></th>';
1018: }
1019: $Str .= '</tr>'."\n";
1020: #
1021: my $alternate = 0;
1022: foreach my $student (@Students) { # @Students is a package variable
1023: my $sname = $student->{'username'}.':'.$student->{'domain'};
1024: if($alternate) {
1025: $Str .= '<tr bgcolor="#ffffe6">';
1026: } else {
1027: $Str .= '<tr bgcolor="#ffffc6">';
1028: }
1029: $alternate = ($alternate + 1) % 2;
1030: #
1031: foreach my $field (@Fields) {
1032: $Str .= '<td>';
1033: if ($field eq 'fullname' || $field eq 'username') {
1034: $Str .= '<a href="/adm/statistics?reportSelected=';
1035: $Str .= &Apache::lonnet::escape('student_assessment');
1036: $Str .= '&sort='.&Apache::lonnet::escape($ENV{'form.sort'});
1037: $Str .= '&SelectedStudent=';
1038: $Str .= &Apache::lonnet::escape($sname).'">';
1039: $Str .= $student->{$field}.' ';
1040: $Str .= '</a>';
1041: } else {
1042: $Str .= $student->{$field};
1043: }
1044: $Str .= '</td>';
1045: }
1046: $Str .= "</tr>\n";
1047: }
1048: $Str .= '</table></td></tr></table>'."\n";
1049: #
1050: $r->print($Str);
1051: $r->rflush();
1052: #
1053: return;
1054: }
1055:
1056: ##############################################
1057: ##############################################
1058: sub CreateMainMenu {
1059: #
1060: # Define menu data
1061: my @reports = ({ internal_name => 'problem_statistics',
1062: name => &mt('Overall Problem Statistics'),
1063: short_description =>
1064: &mt('Student performance statistics on all problems.'),
1065: },
1066: { internal_name => 'problem_analysis',
1067: name => &mt('Detailed Problem Analysis'),
1068: short_description =>
1069: &mt('Detailed statistics and graphs of student performance on problems.'),
1070: },
1071: { internal_name => 'submissiontime_analysis',
1072: name => &mt('Submission Time Plots'),
1073: short_description =>
1074: &mt('Display and analysis of submission times on assessments.'),
1075: },
1076: { internal_name => 'student_submission_reports',
1077: name => &mt('Student Submission Reports'),
1078: short_description =>
1079: &mt('Prepare Excel spreadsheets of student submissions.'),
1080: },
1081: { internal_name => 'survey_reports',
1082: name => &mt('Survey Reports'),
1083: short_description =>
1084: &mt('Prepare reports on survey results.'),
1085: },
1086: { internal_name => 'correct_problems_plot',
1087: name => &mt('Correct Problems Plot'),
1088: short_description =>
1089: &mt('Display a histogram of student performance in the course.'),
1090: },
1091: # { internal_name => 'student_assessment',
1092: # name => &mt('Problem Status Chart'),
1093: # short_description =>
1094: # &mt('Brief view of each students performance in course.'),
1095: # },
1096: # 'percentage' => 'Correct-problems Plot',
1097: # 'activitylog' => 'Activity Log',
1098: );
1099: #
1100: # Create the menu
1101: my $Str;
1102: $Str .= '<h2>'.&mt('Please select a report to generate').'</h2>';
1103: foreach my $reportdata (@reports) {
1104: $Str .=' <h3><a href="/adm/statistics?reportSelected='.
1105: $reportdata->{'internal_name'}.'" >'.
1106: $reportdata->{'name'}."</a></h3>\n";
1107: $Str .= ' '.(' 'x8).$reportdata->{'short_description'}.
1108: "\n";
1109: }
1110: $Str .="</dl>\n";
1111: #
1112: return $Str;
1113: }
1114:
1115: ##############################################
1116: ##############################################
1117: sub handler {
1118: my $r=shift;
1119: my $c = $r->connection();
1120: #
1121: # Check for overloading
1122: my $loaderror=&Apache::lonnet::overloaderror($r);
1123: if ($loaderror) { return $loaderror; }
1124: $loaderror=
1125: &Apache::lonnet::overloaderror($r,
1126: $ENV{'course.'.$ENV{'request.course.id'}.'.home'});
1127: if ($loaderror) { return $loaderror; }
1128: #
1129: # Check for access
1130: if (! &Apache::lonnet::allowed('vgr',$ENV{'request.course.id'})) {
1131: $ENV{'user.error.msg'}=
1132: $r->uri.":vgr:0:0:Cannot view grades for complete course";
1133: if (! &Apache::lonnet::allowed('vgr',
1134: $ENV{'request.course.id'}.'/'.$ENV{'request.course.sec'})) {
1135: $ENV{'user.error.msg'}=
1136: $r->uri.":vgr:0:0:Cannot view grades with given role";
1137: return HTTP_NOT_ACCEPTABLE;
1138: }
1139: }
1140: #
1141: # Send the header
1142: &Apache::loncommon::no_cache($r);
1143: &Apache::loncommon::content_type($r,'text/html');
1144: $r->send_http_header;
1145: if ($r->header_only) { return OK; }
1146: #
1147: # Extract form elements from query string
1148: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1149: ['sort','reportSelected',
1150: 'SelectedStudent']);
1151: #
1152: # Give the LON-CAPA page header
1153: $r->print('<html><head><title>'.
1154: &mt('Course Statistics and Charts').
1155: "</title></head>\n".
1156: &Apache::loncommon::bodytag('Course Statistics and Charts'));
1157: $r->rflush();
1158: #
1159: # Either print out a menu for them or send them to a report
1160: &Apache::lonhtmlcommon::clear_breadcrumbs();
1161: &Apache::lonhtmlcommon::add_breadcrumb({href=>'/adm/statistics',
1162: title=>'Statistics',
1163: text =>'Statistics',
1164: faq=>139,
1165: bug=>'Statistics and Charts'});
1166: if (! exists($ENV{'form.reportSelected'}) ||
1167: $ENV{'form.reportSelected'} eq '') {
1168: $r->print(&Apache::lonhtmlcommon::breadcrumbs
1169: (undef,&mt('Statistics Main Page')).
1170: &CreateMainMenu());
1171: } else {
1172: #
1173: if (! &Apache::lonmysql::verify_sql_connection()) {
1174: my $serveradmin = $r->dir_config('lonAdmEMail');
1175: $r->print('<h2><font color="Red">'.
1176: &mt('Unable to connect to database!').
1177: '</font></h2>');
1178: $r->print('<p>'.
1179: &mt('Please notify the server administrator ').
1180: '<b>'.$serveradmin.'</b></p>');
1181: $r->print('<p>'.
1182: &mt('Course Statistics and Charts cannot be '.
1183: 'retrieved until the database is restarted. '.
1184: 'Your data is intact but cannot be displayed '.
1185: 'at this time.').'</p>');
1186: $r->print('</body></html>');
1187: return;
1188: }
1189: #
1190: # Clean out the caches
1191: if (exists($ENV{'form.ClearCache'})) {
1192: &Apache::loncoursedata::delete_caches($ENV{'requres.course.id'});
1193: }
1194: #
1195: # Begin form output
1196: $r->print('<form name="Statistics" ');
1197: $r->print('method="post" action="/adm/statistics">');
1198: $r->rflush();
1199: #
1200: my $GoToPage = $ENV{'form.reportSelected'};
1201: #
1202: # Set up the statistics and chart environment
1203: &PrepareCourseData($r);
1204: #
1205: $r->print('<input type="hidden" name="reportSelected" value="'.
1206: $GoToPage.'">');
1207: if($GoToPage eq 'activitylog') {
1208: # &Apache::lonproblemstatistics::Activity();
1209: } elsif($GoToPage eq 'problem_statistics') {
1210: &Apache::lonhtmlcommon::add_breadcrumb
1211: ({href=>'/adm/statistics?reportselected=problem_statistics',
1212: text=>'Overall Problem Statistics'});
1213: &Apache::lonproblemstatistics::BuildProblemStatisticsPage($r,$c);
1214: } elsif($GoToPage eq 'problem_analysis') {
1215: &Apache::lonhtmlcommon::add_breadcrumb
1216: ({href=>'/adm/statistics?reportselected=problem_analysis',
1217: text=>'Detailed Problem Analysis'});
1218: &Apache::lonproblemanalysis::BuildProblemAnalysisPage($r,$c);
1219: } elsif($GoToPage eq 'submissiontime_analysis') {
1220: &Apache::lonhtmlcommon::add_breadcrumb
1221: ({href=>
1222: '/adm/statistics?reportselected=submissiontime_analysis',
1223: text=>'Submission Time Plots'});
1224: &Apache::lonsubmissiontimeanalysis::BuildSubmissionTimePage($r,$c);
1225: } elsif($GoToPage eq 'student_submission_reports') {
1226: &Apache::lonhtmlcommon::add_breadcrumb
1227: ({href=>
1228: '/adm/statistics?reportselected=student_submission_reports',
1229: text=>'Student Submission Reports'});
1230: &Apache::lonstudentsubmissions::BuildStudentSubmissionsPage($r,$c);
1231: } elsif($GoToPage eq 'survey_reports') {
1232: &Apache::lonhtmlcommon::add_breadcrumb
1233: ({href=>
1234: '/adm/statistics?reportselected=survey_reports',
1235: text=>'Survey Reports'});
1236: &Apache::lonsurveyreports::BuildSurveyReportsPage($r,$c);
1237: } elsif($GoToPage eq 'correct_problems_plot') {
1238: &Apache::lonhtmlcommon::add_breadcrumb
1239: ({href=>'/adm/statistics?reportselected=correct_problems_plot',
1240: text=>'Correct Problems Plot'});
1241: &Apache::loncorrectproblemplot::BuildCorrectProblemsPage($r,$c);
1242: } elsif($GoToPage eq 'student_assessment') {
1243: &Apache::lonhtmlcommon::clear_breadcrumbs();
1244: &Apache::lonhtmlcommon::add_breadcrumb
1245: ({href=>'/adm/statistics?reportselected=student_assessment',
1246: text=>'Chart'});
1247: &Apache::lonstudentassessment::BuildStudentAssessmentPage($r,$c);
1248: }
1249: #
1250: $r->print("</form>\n");
1251: }
1252: $r->print("</body>\n</html>\n");
1253: $r->rflush();
1254: #
1255: return OK;
1256: }
1257:
1258: 1;
1259:
1260: #######################################################
1261: #######################################################
1262:
1263: =pod
1264:
1265: =back
1266:
1267: =cut
1268:
1269: #######################################################
1270: #######################################################
1271:
1272: __END__
1273:
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