1: # The LearningOnline Network with CAPA
2: #
3: # $Id: lonstudentassessment.pm,v 1.56 2003/06/11 14:41:59 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: # LON-CAPA is free software; you can redistribute it and/or modify
9: # it under the terms of the GNU General Public License as published by
10: # the Free Software Foundation; either version 2 of the License, or
11: # (at your option) any later version.
12: #
13: # LON-CAPA is distributed in the hope that it will be useful,
14: # but WITHOUT ANY WARRANTY; without even the implied warranty of
15: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16: # GNU General Public License for more details.
17: #
18: # You should have received a copy of the GNU General Public License
19: # along with LON-CAPA; if not, write to the Free Software
20: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21: #
22: # /home/httpd/html/adm/gpl.txt
23: #
24: # http://www.lon-capa.org/
25: #
26: # (Navigate problems for statistical reports
27: #
28: #######################################################
29: #######################################################
30:
31: =pod
32:
33: =head1 NAME
34:
35: lonstudentassessment
36:
37: =head1 SYNOPSIS
38:
39: Presents assessment data about a student or a group of students.
40:
41: =head1 Subroutines
42:
43: =over 4
44:
45: =cut
46:
47: #######################################################
48: #######################################################
49:
50: package Apache::lonstudentassessment;
51:
52: use strict;
53: use Apache::lonstatistics;
54: use Apache::lonhtmlcommon;
55: use Apache::loncoursedata;
56: use Apache::lonnet; # for logging porpoises
57: use Spreadsheet::WriteExcel;
58:
59: #######################################################
60: #######################################################
61: =pod
62:
63: =item Package Variables
64:
65: =over 4
66:
67: =item $Statistics Hash ref to store student data. Indexed by symb,
68: contains hashes with keys 'score' and 'max'.
69:
70: =cut
71:
72: #######################################################
73: #######################################################
74:
75: my $Statistics;
76:
77: #######################################################
78: #######################################################
79:
80: =pod
81:
82: =item $show_links 'yes' or 'no' for linking to student performance data
83:
84: =item $output_mode 'html', 'excel', or 'csv' for output mode
85:
86: =item $show 'all', 'totals', or 'scores' determines how much data is output
87:
88: =item $data determines what performance data is shown
89:
90: =item $datadescription A short description of the output data selected.
91:
92: =item $base 'tries' or 'scores' determines the base of the performance shown
93:
94: =item $single_student_mode evaluates to true if we are showing only one
95: student.
96:
97: =cut
98:
99: #######################################################
100: #######################################################
101: my $show_links;
102: my $output_mode;
103: my $data;
104: my $base;
105: my $datadescription;
106: my $single_student_mode;
107:
108: #######################################################
109: #######################################################
110: # End of package variable declarations
111:
112: =pod
113:
114: =back
115:
116: =cut
117:
118: #######################################################
119: #######################################################
120:
121: =pod
122:
123: =item &BuildStudentAssessmentPage()
124:
125: Inputs:
126:
127: =over 4
128:
129: =item $r Apache Request
130:
131: =item $c Apache Connection
132:
133: =back
134:
135: =cut
136:
137: #######################################################
138: #######################################################
139: sub BuildStudentAssessmentPage {
140: my ($r,$c)=@_;
141: undef($Statistics);
142: $single_student_mode = 1 if ($ENV{'form.SelectedStudent'});
143: #
144: # Print out the HTML headers for the interface
145: # This also parses the output mode selector
146: # This step must *always* be done.
147: $r->print(&CreateInterface());
148: $r->print('<input type="hidden" name="notfirstrun" value="true" />');
149: $r->print('<input type="hidden" name="sort" value="'.
150: $ENV{'form.sort'}.'" />');
151: $r->rflush();
152: if (! exists($ENV{'form.notfirstrun'}) && ! $single_student_mode) {
153: return;
154: }
155: #
156: my $initialize = \&html_initialize;
157: my $output_student = \&html_outputstudent;
158: my $finish = \&html_finish;
159: #
160: if ($output_mode eq 'excel') {
161: $initialize = \&excel_initialize;
162: $output_student = \&excel_outputstudent;
163: $finish = \&excel_finish;
164: } elsif ($output_mode eq 'csv') {
165: $initialize = \&csv_initialize;
166: $output_student = \&csv_outputstudent;
167: $finish = \&csv_finish;
168: }
169: #
170: if($c->aborted()) { return ; }
171: #
172: # Determine which students we want to look at
173: my @Students;
174: if ($single_student_mode) {
175: @Students = (&Apache::lonstatistics::current_student());
176: $r->print(&next_and_previous_buttons());
177: $r->rflush();
178: } else {
179: @Students = @Apache::lonstatistics::Students;
180: }
181: #
182: # Perform generic initialization tasks
183: # Since we use lonnet::EXT to retrieve problem weights,
184: # to ensure current data we must clear the caches out.
185: # This makes sure that parameter changes at the student level
186: # are immediately reflected in the chart.
187: &Apache::lonnet::clear_EXT_cache_status();
188: #
189: # Call the initialize routine selected above
190: $initialize->($r);
191: foreach my $student (@Students) {
192: if($c->aborted()) {
193: $finish->($r);
194: return ;
195: }
196: # Call the output_student routine selected above
197: $output_student->($r,$student);
198: }
199: # Call the "finish" routine selected above
200: $finish->($r);
201: #
202: return;
203: }
204:
205: #######################################################
206: #######################################################
207: sub next_and_previous_buttons {
208: my $Str = '';
209: $Str .= '<input type="hidden" name="SelectedStudent" value="'.
210: $ENV{'form.SelectedStudent'}.'" />';
211: #
212: # Build the previous student link
213: my $previous = &Apache::lonstatistics::previous_student();
214: my $previousbutton = '';
215: if (defined($previous)) {
216: my $sname = $previous->{'username'}.':'.$previous->{'domain'};
217: $previousbutton .= '<input type="button" value="'.
218: 'Previous Student ('.
219: $previous->{'username'}.'@'.$previous->{'domain'}.')'.
220: '" onclick="document.Statistics.SelectedStudent.value='.
221: "'".$sname."'".';'.
222: 'document.Statistics.submit();" />';
223: } else {
224: $previousbutton .= '<input type="button" value="'.
225: 'Previous student (none)'.'" />';
226: }
227: #
228: # Build the next student link
229: my $next = &Apache::lonstatistics::next_student();
230: my $nextbutton = '';
231: if (defined($next)) {
232: my $sname = $next->{'username'}.':'.$next->{'domain'};
233: $nextbutton .= '<input type="button" value="'.
234: 'Next Student ('.
235: $next->{'username'}.'@'.$next->{'domain'}.')'.
236: '" onclick="document.Statistics.SelectedStudent.value='.
237: "'".$sname."'".';'.
238: 'document.Statistics.submit();" />';
239: } else {
240: $nextbutton .= '<input type="button" value="'.
241: 'Next student (none)'.'" />';
242: }
243: #
244: # Build the 'all students' button
245: my $all = '';
246: $all .= '<input type="button" value="All Students" '.
247: '" onclick="document.Statistics.SelectedStudent.value='.
248: "''".';'.'document.Statistics.submit();" />';
249: $Str .= $previousbutton.(' 'x5).$all.(' 'x5).$nextbutton;
250: return $Str;
251: }
252:
253: #######################################################
254: #######################################################
255:
256: sub get_student_fields_to_show {
257: my @to_show = @Apache::lonstatistics::SelectedStudentData;
258: foreach (@to_show) {
259: if ($_ eq 'all') {
260: @to_show = @Apache::lonstatistics::StudentDataOrder;
261: last;
262: }
263: }
264: return @to_show;
265: }
266:
267: #######################################################
268: #######################################################
269:
270: =pod
271:
272: =item &CreateInterface()
273:
274: Called by &BuildStudentAssessmentPage to create the top part of the
275: page which displays the chart.
276:
277: Inputs: None
278:
279: Returns: A string containing the HTML for the headers and top table for
280: the chart page.
281:
282: =cut
283:
284: #######################################################
285: #######################################################
286: sub CreateInterface {
287: my $Str = '';
288: # $Str .= &CreateLegend();
289: $Str .= '<table cellspacing="5">'."\n";
290: $Str .= '<tr>';
291: $Str .= '<td align="center"><b>Sections</b></td>';
292: $Str .= '<td align="center"><b>Student Data</b></td>';
293: $Str .= '<td align="center"><b>Enrollment Status</b></td>';
294: $Str .= '<td align="center"><b>Sequences and Folders</b></td>';
295: $Str .= '<td align="center"><b>Output Format</b></td>';
296: $Str .= '<td align="center"><b>Output Data</b></td>';
297: $Str .= '</tr>'."\n";
298: #
299: $Str .= '<tr><td align="center">'."\n";
300: $Str .= &Apache::lonstatistics::SectionSelect('Section','multiple',5);
301: $Str .= '</td><td align="center">';
302: my $only_seq_with_assessments = sub {
303: my $s=shift;
304: if ($s->{'num_assess'} < 1) {
305: return 0;
306: } else {
307: return 1;
308: }
309: };
310: $Str .= &Apache::lonstatistics::StudentDataSelect('StudentData','multiple',
311: 5,undef);
312: $Str .= '</td><td>'."\n";
313: $Str .= &Apache::lonhtmlcommon::StatusOptions(undef,undef,5);
314: $Str .= '</td><td>'."\n";
315: $Str .= &Apache::lonstatistics::MapSelect('Maps','multiple,all',5,
316: $only_seq_with_assessments);
317: $Str .= '</td><td>'."\n";
318: $Str .= &CreateAndParseOutputSelector();
319: $Str .= '</td><td>'."\n";
320: $Str .= &CreateAndParseOutputDataSelector();
321: $Str .= '</td></tr>'."\n";
322: $Str .= '</table>'."\n";
323: $Str .= '<input type="submit" value="Generate Chart" />';
324: $Str .= ' 'x8;
325: return $Str;
326: }
327:
328: #######################################################
329: #######################################################
330:
331: =pod
332:
333: =item &CreateAndParseOutputSelector()
334:
335: =cut
336:
337: #######################################################
338: #######################################################
339: my @OutputOptions =
340: ({ name => 'HTML, with links',
341: value => 'html, with links',
342: description => 'Output HTML with each symbol linked to the problem '.
343: 'which generated it.',
344: mode => 'html',
345: show_links => 'yes',
346: },
347: { name => 'HTML, with all links',
348: value => 'html, with all links',
349: description => 'Output HTML with each symbol linked to the problem '.
350: 'which generated it. '.
351: 'This includes links for unattempted problems.',
352: mode => 'html',
353: show_links => 'all',
354: },
355: { name => 'HTML, without links',
356: value => 'html, without links',
357: description => 'Output HTML. By not including links, the size of the'.
358: ' web page is greatly reduced. If your browser crashes on the '.
359: 'full display, try this.',
360: mode => 'html',
361: show_links => 'no',
362: },
363: { name => 'Excel',
364: value => 'excel',
365: description => 'Output an Excel file (compatable with Excel 95).',
366: mode => 'excel',
367: show_links => 'no',
368: },
369: # { name => 'multi-sheet Excel',
370: # value => 'multi-sheet excel',
371: # description => 'Output an Excel file (compatable with Excel 95), '.
372: # 'with a seperate worksheet for each sequence you have selected '.
373: # 'the data for each problem part '.
374: # '(number of tries, status, points awarded) will be listed.',
375: # mode => 'multi-sheet excel',
376: # show_links => 'no',
377: # },
378: # { name => 'multi-sheet Excel, by section',
379: # value => 'multi-sheet excel, by section',
380: # description => 'Output an Excel file (compatable with Excel 95), '.
381: # 'with a seperate worksheet for each sequence you have selected '.
382: # 'the data for each problem part '.
383: # '(number of tries, status, points awarded) will be listed. '.
384: # 'There will be one Excel workbook for each section selected.',
385: # mode => 'multi-sheet excel',
386: # show_links => 'no',
387: # },
388: { name => 'CSV',
389: value => 'csv',
390: description => 'Output a comma seperated values file suitable for '.
391: 'import into a spreadsheet.',
392: mode => 'csv',
393: show_links => 'no',
394: },
395: );
396:
397: sub OutputDescriptions {
398: my $Str = '';
399: $Str .= "<h2>Output Modes</h2>\n";
400: $Str .= "<dl>\n";
401: foreach my $outputmode (@OutputOptions) {
402: $Str .=" <dt>".$outputmode->{'name'}."</dt>\n";
403: $Str .=" <dd>".$outputmode->{'description'}."</dd>\n";
404: }
405: $Str .= "</dl>\n";
406: return $Str;
407: }
408:
409: sub CreateAndParseOutputSelector {
410: my $Str = '';
411: my $elementname = 'chartoutputmode';
412: #
413: # Format for output options is 'mode, restrictions';
414: my $selected = 'html, without links';
415: if (exists($ENV{'form.'.$elementname})) {
416: if (ref($ENV{'form.'.$elementname} eq 'ARRAY')) {
417: $selected = $ENV{'form.'.$elementname}->[0];
418: } else {
419: $selected = $ENV{'form.'.$elementname};
420: }
421: }
422: #
423: # Set package variables describing output mode
424: $show_links = 'no';
425: $output_mode = 'html';
426: foreach my $option (@OutputOptions) {
427: next if ($option->{'value'} ne $selected);
428: $output_mode = $option->{'mode'};
429: $show_links = $option->{'show_links'};
430: }
431:
432: #
433: # Build the form element
434: $Str = qq/<select size="5" name="$elementname">/;
435: foreach my $option (@OutputOptions) {
436: $Str .= "\n".' <option value="'.$option->{'value'}.'"';
437: $Str .= " selected " if ($option->{'value'} eq $selected);
438: $Str .= ">".$option->{'name'}."<\/option>";
439: }
440: $Str .= "\n</select>";
441: return $Str;
442: }
443:
444: ##
445: ## Data selector stuff
446: ##
447: my @OutputDataOptions =
448: ( { name =>'Tries',
449: base =>'tries',
450: value => 'tries',
451: shortdesc => 'Number of Tries before success on each Problem Part',
452: longdesc =>'The number of tries before success on each problem part.',
453: },
454: { name =>'Parts Correct',
455: base =>'tries',
456: value => 'parts correct',
457: shortdesc => 'Number of Problem Parts completed successfully.',
458: longdesc => 'The Number of Problem Parts completed successfully.',
459: },
460: { name =>'Parts Correct & Maximums',
461: base =>'tries',
462: value => 'parts correct total',
463: shortdesc => 'Number of Problem Parts completed successfully.',
464: longdesc => 'The Number of Problem Parts completed successfully and '.
465: 'the maximum possible for each student',
466: },
467: { name => 'Scores',
468: base => 'scores',
469: value => 'scores',
470: shortdesc => 'Score on each Problem Part',
471: longdesc =>'The students score on each problem part, computed as'.
472: 'the part weight * part awarded',
473: },
474: { name => 'Scores Sum',
475: base => 'scores',
476: value => 'sum only',
477: shortdesc => 'Sum of Scores on each Problem Part',
478: longdesc =>'The total of the scores of the student on each problem'.
479: ' part in the sequences or folders selected.',
480: },
481: { name => 'Scores Sum & Maximums',
482: base => 'scores',
483: value => 'sum and total',
484: shortdesc => 'Total Score and Maximum Possible for each '.
485: 'Sequence or Folder',
486: longdesc => 'The total of the scores of the student on each problem'.
487: ' and the maximum possible for that student on each Sequence or '.
488: ' Folder.',
489: },
490: { name => 'Summary Table (Scores)',
491: base => 'scores',
492: value => 'final table scores',
493: shortdesc => 'Summary of Scores',
494: longdesc => '',
495: },
496: { name => 'Summary Table (Parts)',
497: base => 'tries',
498: value => 'final table parts',
499: shortdesc => 'Summary of Parts Correct',
500: longdesc => '',
501: }
502: );
503:
504: sub CreateAndParseOutputDataSelector {
505: my $Str = '';
506: my $elementname = 'chartoutputdata';
507: #
508: my $selected = 'scores';
509: if (exists($ENV{'form.'.$elementname})) {
510: if (ref($ENV{'form.'.$elementname} eq 'ARRAY')) {
511: $selected = $ENV{'form.'.$elementname}->[0];
512: } else {
513: $selected = $ENV{'form.'.$elementname};
514: }
515: }
516: #
517: $data = 'scores';
518: foreach my $option (@OutputDataOptions) {
519: if ($option->{'value'} eq $selected) {
520: $data = $option->{'value'};
521: $base = $option->{'base'};
522: $datadescription = $option->{'shortdesc'};
523: }
524: }
525: #
526: # Build the form element
527: $Str = qq/<select size="5" name="$elementname">/;
528: foreach my $option (@OutputDataOptions) {
529: $Str .= "\n".' <option value="'.$option->{'value'}.'"';
530: $Str .= " selected " if ($option->{'value'} eq $data);
531: $Str .= ">".$option->{'name'}."<\/option>";
532: }
533: $Str .= "\n</select>";
534: return $Str;
535:
536: }
537:
538: #######################################################
539: #######################################################
540:
541: =pod
542:
543: =head2 HTML output routines
544:
545: =item &html_initialize($r)
546:
547: Create labels for the columns of student data to show.
548:
549: =item &html_outputstudent($r,$student)
550:
551: Return a line of the chart for a student.
552:
553: =item &html_finish($r)
554:
555: =cut
556:
557: #######################################################
558: #######################################################
559: {
560: my $padding;
561: my $count;
562:
563: my $nodata_count; # The number of students for which there is no data
564: my %prog_state; # progress state used by loncommon PrgWin routines
565:
566: sub html_initialize {
567: my ($r) = @_;
568: #
569: $padding = ' 'x3;
570: $count = 0;
571: $nodata_count = 0;
572: #
573: $r->print("<h3>".$ENV{'course.'.$ENV{'request.course.id'}.'.description'}.
574: " ".localtime(time)."</h3>");
575:
576: if ($data !~ /^final table/) {
577: $r->print("<h3>".$datadescription."</h3>");
578: }
579: #
580: # Set up progress window for 'final table' display only
581: if ($data =~ /^final table/) {
582: my $studentcount = scalar(@Apache::lonstatistics::Students);
583: %prog_state=&Apache::lonhtmlcommon::Create_PrgWin
584: ($r,'Summary Table Status',
585: 'Summary Table Compilation Progress', $studentcount);
586: }
587: my $Str = "<pre>\n";
588: # First, the @StudentData fields need to be listed
589: my @to_show = &get_student_fields_to_show();
590: foreach my $field (@to_show) {
591: my $title=$Apache::lonstatistics::StudentData{$field}->{'title'};
592: my $base =$Apache::lonstatistics::StudentData{$field}->{'base_width'};
593: my $width=$Apache::lonstatistics::StudentData{$field}->{'width'};
594: $Str .= $title.' 'x($width-$base).$padding;
595: }
596: # Now the selected sequences need to be listed
597: foreach my $sequence (&Apache::lonstatistics::Sequences_with_Assess()){
598: my $title = $sequence->{'title'};
599: my $base = $sequence->{'base_width'};
600: my $width = $sequence->{'width'};
601: $Str .= $title.' 'x($width-$base).$padding;
602: }
603: $Str .= "total</pre>\n";
604: $Str .= "<pre>";
605: #
606: # Check for suppression of output
607: if ($data =~ /^final table/) {
608: $Str = '';
609: }
610: $r->print($Str);
611: $r->rflush();
612: return;
613: }
614:
615: sub html_outputstudent {
616: my ($r,$student) = @_;
617: my $Str = '';
618: #
619: if($count++ % 5 == 0 && $count > 0 && $data !~ /^final table/) {
620: $r->print("</pre><pre>");
621: }
622: # First, the @StudentData fields need to be listed
623: my @to_show = &get_student_fields_to_show();
624: foreach my $field (@to_show) {
625: my $title=$student->{$field};
626: my $base = length($title);
627: my $width=$Apache::lonstatistics::StudentData{$field}->{'width'};
628: $Str .= $title.' 'x($width-$base).$padding;
629: }
630: # Get ALL the students data
631: my %StudentsData;
632: my @tmp = &Apache::loncoursedata::get_current_state
633: ($student->{'username'},$student->{'domain'},undef,
634: $ENV{'request.course.id'});
635: if ((scalar @tmp > 0) && ($tmp[0] !~ /^error:/)) {
636: %StudentsData = @tmp;
637: }
638: if (scalar(@tmp) < 1) {
639: $nodata_count++;
640: return if ($data =~ /^final table/);
641: $Str .= '<font color="blue">No Course Data</font>'."\n";
642: $r->print($Str);
643: $r->rflush();
644: return;
645: }
646: #
647: # By sequence build up the data
648: my $studentstats;
649: my $PerformanceStr = '';
650: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
651: my ($performance,$performance_length,$score,$seq_max,$rawdata);
652: if ($base eq 'tries') {
653: ($performance,$performance_length,$score,$seq_max,$rawdata) =
654: &StudentTriesOnSequence($student,\%StudentsData,
655: $seq,$show_links);
656: } else {
657: ($performance,$performance_length,$score,$seq_max,$rawdata) =
658: &StudentPerformanceOnSequence($student,\%StudentsData,
659: $seq,$show_links);
660: }
661: my $ratio = sprintf("%3d",$score).'/'.sprintf("%3d",$seq_max);
662: #
663: if ($data eq 'sum and total' || $data eq 'parts correct total') {
664: $performance = $ratio;
665: $performance .= ' 'x($seq->{'width'}-length($ratio));
666: } elsif ($data eq 'sum only' || $data eq 'parts correct') {
667: $performance = $score;
668: $performance .= ' 'x($seq->{'width'}-length($score));
669: } else {
670: # Pad with extra spaces
671: $performance .= ' 'x($seq->{'width'}-$performance_length-
672: length($ratio)
673: ).$ratio;
674: }
675: #
676: $Str .= $performance.$padding;
677: #
678: $studentstats->{$seq->{'symb'}}->{'score'}= $score;
679: $studentstats->{$seq->{'symb'}}->{'max'} = $seq_max;
680: }
681: #
682: # Total it up and store the statistics info.
683: my ($score,$max) = (0,0);
684: while (my ($symb,$seq_stats) = each (%{$studentstats})) {
685: $Statistics->{$symb}->{'score'} += $seq_stats->{'score'};
686: if ($Statistics->{$symb}->{'max'} < $seq_stats->{'max'}) {
687: $Statistics->{$symb}->{'max'} = $seq_stats->{'max'};
688: }
689: $score += $seq_stats->{'score'};
690: $max += $seq_stats->{'max'};
691: }
692: $Str .= ' '.' 'x(length($max)-length($score)).$score.'/'.$max;
693: $Str .= " \n";
694: #
695: # Check for suppressed output and update the progress window if so...
696: if ($data =~ /^final table/) {
697: $Str = '';
698: &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,
699: 'last student');
700: }
701: #
702: $r->print($Str);
703: #
704: $r->rflush();
705: return;
706: }
707:
708: sub html_finish {
709: my ($r) = @_;
710: #
711: # Check for suppressed output and close the progress window if so
712: if ($data =~ /^final table/) {
713: &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
714: } else {
715: $r->print("</pre>\n");
716: }
717: if ($single_student_mode) {
718: $r->print(&SingleStudentTotal());
719: } else {
720: $r->print(&StudentAverageTotal());
721: }
722: $r->rflush();
723: return;
724: }
725:
726: sub StudentAverageTotal {
727: my $Str = "<h3>Summary Tables</h3>\n";
728: my $num_students = scalar(@Apache::lonstatistics::Students);
729: my $total_ave = 0;
730: my $total_max = 0;
731: $Str .= '<table border=2 cellspacing="1">'."\n";
732: $Str .= "<tr><th>Title</th><th>Average</th><th>Maximum</th></tr>\n";
733: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
734: my $ave;
735: if ($num_students > $nodata_count) {
736: $ave = int(100*($Statistics->{$seq->{'symb'}}->{'score'}/
737: ($num_students-$nodata_count)))/100;
738: } else {
739: $ave = 0;
740: }
741: $total_ave += $ave;
742: my $max = $Statistics->{$seq->{'symb'}}->{'max'};
743: $total_max += $max;
744: if ($ave == 0) {
745: $ave = "0.00";
746: }
747: $ave .= ' ';
748: $max .= ' ';
749: $Str .= '<tr><td>'.$seq->{'title'}.'</td>'.
750: '<td align="right">'.$ave.'</td>'.
751: '<td align="right">'.$max.'</td></tr>'."\n";
752: }
753: $total_ave = int(100*$total_ave)/100; # only two digit
754: $Str .= "</table>\n";
755: $Str .= '<table border=2 cellspacing="1">'."\n";
756: $Str .= '<tr><th>Number of Students</th><th>Average</th>'.
757: "<th>Maximum</th></tr>\n";
758: $Str .= '<tr><td>'.($num_students-$nodata_count).'</td>'.
759: '<td>'.$total_ave.'</td><td>'.$total_max.'</td>';
760: $Str .= "</table>\n";
761: return $Str;
762: }
763:
764: sub SingleStudentTotal {
765: my $student = &Apache::lonstatistics::current_student();
766: my $Str = "<h3>Summary table for ".$student->{'fullname'}." ".
767: $student->{'username'}.'@'.$student->{'domain'}."</h3>\n";
768: $Str .= '<table border=2 cellspacing="1">'."\n";
769: $Str .=
770: "<tr><th>Sequence or Folder</th><th>Score</th><th>Maximum</th></tr>\n";
771: my $total = 0;
772: my $total_max = 0;
773: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
774: my $value = $Statistics->{$seq->{'symb'}}->{'score'};
775: my $max = $Statistics->{$seq->{'symb'}}->{'max'};
776: $Str .= '<tr><td>'.$seq->{'title'}.'</td>'.
777: '<td align="right">'.$value.'</td>'.
778: '<td align="right">'.$max.'</td></tr>'."\n";
779: $total += $value;
780: $total_max +=$max;
781: }
782: $Str .= '<tr><td><b>Total</b></td>'.
783: '<td align="right">'.$total.'</td>'.
784: '<td align="right">'.$total_max."</td></tr>\n";
785: $Str .= "</table>\n";
786: return $Str;
787: }
788:
789: }
790:
791: #######################################################
792: #######################################################
793:
794: =pod
795:
796: =head2 Multi-Sheet EXCEL subroutines
797:
798: =item &multi_sheet_excel_initialize($r)
799:
800: =item &multi_sheet_excel_outputstudent($r,$student)
801:
802: =item &multi_sheet_excel_finish($r)
803:
804: =cut
805:
806: #######################################################
807: #######################################################
808: {
809:
810: sub multi_sheet_excel_initialize {
811: my ($r)=@_;
812: $r->print("<h1>Not yet implemented</h1>");
813: #
814: # Estimate the size of the file. We would like to have < 5 megs of data.
815: my $max_size = 5000000;
816: my $num_students = scalar(@Apache::lonstatistics::Students);
817: my $num_sequences = 0;
818: my $num_data_per_part = 2; # 'status' and 'numtries'
819: my $fields_per_student = scalar(&get_student_fields_to_show());
820: my $bytes_per_field = 20; # Back of the envelope calculation
821: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
822: $num_sequences++ if ($seq->{'num_assess'} > 0);
823: $fields_per_student += $num_data_per_part * $seq->{'num_assess_parts'};
824: }
825: my $size_estimate = $fields_per_student*$num_students*$bytes_per_field;
826: #
827: # Compute number of workbooks
828: my $num_workbooks = 1;
829: if ($size_estimate > $max_size) { # try to stay under 5 megs
830: $num_workbooks += int($size_estimate / $max_size);
831: }
832: # if ($data eq ) {
833: # if (@Apache::lonstatistics::SelectedSections > 1 &&
834: # $Apache::lonstatistics::SelectedSections[0] ne 'all') {
835: # $num_workbooks = scalar(@Apache::lonstatistics::SelectedSections);
836: # } else {
837: # # @Apache::lonstatistics::Sections contains 'all' as well.
838: # $num_workbooks = scalar(@Apache::lonstatistics::Sections) - 1;
839: # }
840: # }
841:
842: $r->print("Maximum allowed size: ".$max_size." bytes<br />");
843: $r->print("Number of students: ".$num_students."<br />");
844: $r->print("Number of fields per student: ".$fields_per_student."<br />");
845: $r->print("Total number of fields: ".($fields_per_student*$num_students).
846: "<br />");
847: $r->print("Bytes per field: ".$bytes_per_field." (estimated)"."<br />");
848: $r->print("Estimated size: ".$size_estimate." bytes<br />");
849: $r->print("Number of workbooks: ".$num_workbooks."<br />");
850: $r->rflush();
851: return;
852: }
853:
854: sub multi_sheet_excel_outputstudent {
855: my ($r,$student) = @_;
856: }
857:
858: sub multi_sheet_excel_finish {
859: my ($r) = @_;
860: }
861:
862: }
863: #######################################################
864: #######################################################
865:
866: =pod
867:
868: =head2 EXCEL subroutines
869:
870: =item &excel_initialize($r)
871:
872: =item &excel_outputstudent($r,$student)
873:
874: =item &excel_finish($r)
875:
876: =cut
877:
878: #######################################################
879: #######################################################
880: {
881:
882: my $excel_sheet;
883: my $excel_workbook;
884:
885: my $filename;
886: my $rows_output;
887: my $cols_output;
888:
889: my %prog_state; # progress window state
890: my $request_aborted;
891:
892: sub excel_initialize {
893: my ($r) = @_;
894: #
895: $request_aborted = undef;
896: my $total_columns = scalar(&get_student_fields_to_show());
897: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
898: # Add 2 because we need a 'sum' and 'total' column for each
899: $total_columns += $seq->{'num_assess_parts'}+2;
900: }
901: if ($data eq 'tries' && $total_columns > 255) {
902: $r->print(<<END);
903: <h2>Unable to Complete Request</h2>
904: <p>
905: LON-CAPA is unable to produce your Excel spreadsheet because your selections
906: will result in more than 255 columns. Excel allows only 255 columns in a
907: spreadsheet.
908: </p><p>
909: You may consider reducing the number of <b>Sequences or Folders</b> you
910: have selected.
911: </p><p>
912: LON-CAPA can produce <b>CSV</b> files of this data or Excel files of the
913: summary data (<b>Parts Correct</b> or <b>Parts Correct & Totals</b>).
914: </p>
915: END
916: $request_aborted = 1;
917: }
918: if ($data eq 'scores' && $total_columns > 255) {
919: $r->print(<<END);
920: <h2>Unable to Complete Request</h2>
921: <p>
922: LON-CAPA is unable to produce your Excel spreadsheet because your selections
923: will result in more than 255 columns. Excel allows only 255 columns in a
924: spreadsheet.
925: </p><p>
926: You may consider reducing the number of <b>Sequences or Folders</b> you
927: have selected.
928: </p><p>
929: LON-CAPA can produce <b>CSV</b> files of this data or Excel files of the
930: summary data (<b>Scores Sum</b> or <b>Scores Sum & Totals</b>).
931: </p>
932: END
933: $request_aborted = 1;
934: }
935: if ($data =~ /^final table/) {
936: $r->print(<<END);
937: <h2>Unable to Complete Request</h2>
938: <p>
939: The <b>Summary Table (Scores)</b> option is not available for non-HTML output.
940: </p>
941: END
942: $request_aborted = 1;
943: }
944: return if ($request_aborted);
945: #
946: $filename = '/prtspool/'.
947: $ENV{'user.name'}.'_'.$ENV{'user.domain'}.'_'.
948: time.'_'.rand(1000000000).'.xls';
949: #
950: $excel_workbook = undef;
951: $excel_sheet = undef;
952: #
953: $rows_output = 0;
954: $cols_output = 0;
955: #
956: # Create sheet
957: $excel_workbook = Spreadsheet::WriteExcel->new('/home/httpd'.$filename);
958: #
959: # Check for errors
960: if (! defined($excel_workbook)) {
961: $r->log_error("Error creating excel spreadsheet $filename: $!");
962: $r->print("Problems creating new Excel file. ".
963: "This error has been logged. ".
964: "Please alert your LON-CAPA administrator");
965: return ;
966: }
967: #
968: # The excel spreadsheet stores temporary data in files, then put them
969: # together. If needed we should be able to disable this (memory only).
970: # The temporary directory must be specified before calling 'addworksheet'.
971: # File::Temp is used to determine the temporary directory.
972: $excel_workbook->set_tempdir($Apache::lonnet::tmpdir);
973: #
974: # Add a worksheet
975: my $sheetname = $ENV{'course.'.$ENV{'request.course.id'}.'.description'};
976: if (length($sheetname) > 31) {
977: $sheetname = substr($sheetname,0,31);
978: }
979: $excel_sheet = $excel_workbook->addworksheet($sheetname);
980: #
981: # Put the course description in the header
982: $excel_sheet->write($rows_output,$cols_output++,
983: $ENV{'course.'.$ENV{'request.course.id'}.'.description'});
984: $cols_output += 3;
985: #
986: # Put a description of the sections listed
987: my $sectionstring = '';
988: my @Sections = @Apache::lonstatistics::SelectedSections;
989: if (scalar(@Sections) > 1) {
990: if (scalar(@Sections) > 2) {
991: my $last = pop(@Sections);
992: $sectionstring = "Sections ".join(', ',@Sections).', and '.$last;
993: } else {
994: $sectionstring = "Sections ".join(' and ',@Sections);
995: }
996: } else {
997: if ($Sections[0] eq 'all') {
998: $sectionstring = "All sections";
999: } else {
1000: $sectionstring = "Section ".$Sections[0];
1001: }
1002: }
1003: $excel_sheet->write($rows_output,$cols_output++,$sectionstring);
1004: $cols_output += scalar(@Sections);
1005: #
1006: # Put the date in there too
1007: $excel_sheet->write($rows_output++,$cols_output++,
1008: 'Compiled on '.localtime(time));
1009: #
1010: $cols_output = 0;
1011: $excel_sheet->write($rows_output++,$cols_output++,$datadescription);
1012: #
1013: if ($data eq 'tries' || $data eq 'scores') {
1014: $rows_output++;
1015: }
1016: #
1017: # Add the student headers
1018: $cols_output = 0;
1019: foreach my $field (&get_student_fields_to_show()) {
1020: $excel_sheet->write($rows_output,$cols_output++,$field);
1021: }
1022: my $row_offset = 0;
1023: if ($data eq 'tries' || $data eq 'scores') {
1024: $row_offset = -1;
1025: }
1026: #
1027: # Add the remaining column headers
1028: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
1029: $excel_sheet->write($rows_output+$row_offset,
1030: $cols_output,$seq->{'title'});
1031: if ($data eq 'tries' || $data eq 'scores') {
1032: foreach my $res (@{$seq->{'contents'}}) {
1033: next if ($res->{'type'} ne 'assessment');
1034: if (scalar(@{$res->{'parts'}}) > 1) {
1035: foreach my $part (@{$res->{'parts'}}) {
1036: $excel_sheet->write($rows_output,
1037: $cols_output++,
1038: $res->{'title'}.' part '.$part);
1039: }
1040: } else {
1041: $excel_sheet->write($rows_output,
1042: $cols_output++,
1043: $res->{'title'});
1044: }
1045: }
1046: $excel_sheet->write($rows_output,$cols_output++,'score');
1047: $excel_sheet->write($rows_output,$cols_output++,'maximum');
1048: } elsif ($data eq 'sum and total' || $data eq 'parts correct total') {
1049: $excel_sheet->write($rows_output+1,$cols_output,'score');
1050: $excel_sheet->write($rows_output+1,$cols_output+1,'maximum');
1051: $cols_output += 2;
1052: } else {
1053: $cols_output++;
1054: }
1055: }
1056: #
1057: # Bookkeeping
1058: if ($data eq 'sum and total' || $data eq 'parts correct total') {
1059: $rows_output += 2;
1060: } else {
1061: $rows_output += 1;
1062: }
1063: #
1064: # Output a row for MAX
1065: $cols_output = 0;
1066: foreach my $field (&get_student_fields_to_show()) {
1067: if ($field eq 'username' || $field eq 'fullname' ||
1068: $field eq 'id') {
1069: $excel_sheet->write($rows_output,$cols_output++,'Maximum');
1070: } else {
1071: $excel_sheet->write($rows_output,$cols_output++,'');
1072: }
1073: }
1074: #
1075: # Add the maximums for each sequence or assessment
1076: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
1077: my $weight;
1078: my $max = 0;
1079: foreach my $resource (@{$seq->{'contents'}}) {
1080: next if ($resource->{'type'} ne 'assessment');
1081: foreach my $part (@{$resource->{'parts'}}) {
1082: $weight = 1;
1083: if ($base eq 'scores') {
1084: $weight = &Apache::lonnet::EXT
1085: ('resource.'.$part.'.weight',$resource->{'symb'},
1086: undef,undef,undef);
1087: if (!defined($weight) || ($weight eq '')) {
1088: $weight=1;
1089: }
1090: }
1091: if ($data eq 'scores') {
1092: $excel_sheet->write($rows_output,$cols_output++,$weight);
1093: } elsif ($data eq 'tries') {
1094: $excel_sheet->write($rows_output,$cols_output++,'');
1095: }
1096: $max += $weight;
1097: }
1098: }
1099: if (! ($data eq 'sum only' || $data eq 'parts correct')) {
1100: $excel_sheet->write($rows_output,$cols_output++,'');
1101: }
1102: $excel_sheet->write($rows_output,$cols_output++,$max);
1103: }
1104: $rows_output++;
1105: #
1106: # Let the user know what we are doing
1107: my $studentcount = scalar(@Apache::lonstatistics::Students);
1108: $r->print("<h1>Compiling Excel spreadsheet for ".
1109: $studentcount.' student');
1110: $r->print('s') if ($studentcount > 1);
1111: $r->print("</h1>\n");
1112: $r->rflush();
1113: #
1114: # Initialize progress window
1115: %prog_state=&Apache::lonhtmlcommon::Create_PrgWin
1116: ($r,'Excel File Compilation Status',
1117: 'Excel File Compilation Progress', $studentcount);
1118: #
1119: return;
1120: }
1121:
1122: sub excel_outputstudent {
1123: my ($r,$student) = @_;
1124: return if ($request_aborted);
1125: return if (! defined($excel_sheet));
1126: $cols_output=0;
1127: #
1128: # Write out student data
1129: my @to_show = &get_student_fields_to_show();
1130: foreach my $field (@to_show) {
1131: $excel_sheet->write($rows_output,$cols_output++,$student->{$field});
1132: }
1133: #
1134: # Get student assessment data
1135: my %StudentsData;
1136: my @tmp = &Apache::loncoursedata::get_current_state($student->{'username'},
1137: $student->{'domain'},
1138: undef,
1139: $ENV{'request.course.id'});
1140: if ((scalar @tmp > 0) && ($tmp[0] !~ /^error:/)) {
1141: %StudentsData = @tmp;
1142: }
1143: #
1144: # Write out sequence scores and totals data
1145: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
1146: my ($performance,$performance_length,$score,$seq_max,$rawdata);
1147: if ($base eq 'tries') {
1148: ($performance,$performance_length,$score,$seq_max,$rawdata) =
1149: &StudentTriesOnSequence($student,\%StudentsData,
1150: $seq,'no');
1151: } else {
1152: ($performance,$performance_length,$score,$seq_max,$rawdata) =
1153: &StudentPerformanceOnSequence($student,\%StudentsData,
1154: $seq,'no');
1155: }
1156: if ($data eq 'tries' || $data eq 'scores') {
1157: foreach my $value (@$rawdata) {
1158: $excel_sheet->write($rows_output,$cols_output++,$value);
1159: }
1160: $excel_sheet->write($rows_output,$cols_output++,$score);
1161: $excel_sheet->write($rows_output,$cols_output++,$seq_max);
1162: } elsif ($data eq 'sum and total' || $data eq 'sum only' ||
1163: $data eq 'parts correct' || $data eq 'parts correct total') {
1164: $excel_sheet->write($rows_output,$cols_output++,$score);
1165: }
1166: if ($data eq 'sum and total' || $data eq 'parts correct total') {
1167: $excel_sheet->write($rows_output,$cols_output++,$seq_max);
1168: }
1169: }
1170: #
1171: # Bookkeeping
1172: $rows_output++;
1173: $cols_output=0;
1174: #
1175: # Update the progress window
1176: &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,'last student');
1177: return;
1178: }
1179:
1180: sub excel_finish {
1181: my ($r) = @_;
1182: return if ($request_aborted);
1183: return if (! defined($excel_sheet));
1184: #
1185: # Write the excel file
1186: $excel_workbook->close();
1187: my $c = $r->connection();
1188: #
1189: return if($c->aborted());
1190: #
1191: # Close the progress window
1192: &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
1193: #
1194: # Tell the user where to get their excel file
1195: $r->print('<br />'.
1196: '<a href="'.$filename.'">Your Excel spreadsheet.</a>'."\n");
1197: $r->rflush();
1198: return;
1199: }
1200:
1201: }
1202: #######################################################
1203: #######################################################
1204:
1205: =pod
1206:
1207: =head2 CSV output routines
1208:
1209: =item &csv_initialize($r)
1210:
1211: =item &csv_outputstudent($r,$student)
1212:
1213: =item &csv_finish($r)
1214:
1215: =cut
1216:
1217: #######################################################
1218: #######################################################
1219: {
1220:
1221: my $outputfile;
1222: my $filename;
1223: my $request_aborted;
1224: my %prog_state; # progress window state
1225:
1226: sub csv_initialize{
1227: my ($r) = @_;
1228: #
1229: # Clean up
1230: $filename = undef;
1231: $outputfile = undef;
1232: undef(%prog_state);
1233: #
1234: # Deal with unimplemented requests
1235: $request_aborted = undef;
1236: if ($data =~ /final table/) {
1237: $r->print(<<END);
1238: <h2>Unable to Complete Request</h2>
1239: <p>
1240: The <b>Summary Table (Scores)</b> option is not available for non-HTML output.
1241: </p>
1242: END
1243: $request_aborted = 1;
1244: }
1245: return if ($request_aborted);
1246:
1247: #
1248: # Open a file
1249: $filename = '/prtspool/'.
1250: $ENV{'user.name'}.'_'.$ENV{'user.domain'}.'_'.
1251: time.'_'.rand(1000000000).'.csv';
1252: unless ($outputfile = Apache::File->new('>/home/httpd'.$filename)) {
1253: $r->log_error("Couldn't open $filename for output $!");
1254: $r->print("Problems occured in writing the csv file. ".
1255: "This error has been logged. ".
1256: "Please alert your LON-CAPA administrator.");
1257: $outputfile = undef;
1258: }
1259: #
1260: # Datestamp
1261: my $description = $ENV{'course.'.$ENV{'request.course.id'}.'.description'};
1262: print $outputfile '"'.&Apache::loncommon::csv_translate($description).'",'.
1263: '"'.&Apache::loncommon::csv_translate(scalar(localtime(time))).'"'.
1264: "\n";
1265: #
1266: # Print out the headings
1267: my $Str = '';
1268: my $Str2 = undef;
1269: foreach my $field (&get_student_fields_to_show()) {
1270: if ($data eq 'sum only') {
1271: $Str .= '"'.&Apache::loncommon::csv_translate($field).'",';
1272: } elsif ($data eq 'sum and total' || $data eq 'parts correct total') {
1273: $Str .= '"",'; # first row empty on the student fields
1274: $Str2 .= '"'.&Apache::loncommon::csv_translate($field).'",';
1275: } elsif ($data eq 'scores' || $data eq 'tries' ||
1276: $data eq 'parts correct') {
1277: $Str .= '"",';
1278: $Str2 .= '"'.&Apache::loncommon::csv_translate($field).'",';
1279: }
1280: }
1281: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
1282: if ($data eq 'sum only' || $data eq 'parts correct') {
1283: $Str .= '"'.&Apache::loncommon::csv_translate($seq->{'title'}).
1284: '",';
1285: } elsif ($data eq 'sum and total' || $data eq 'parts correct total') {
1286: $Str .= '"'.&Apache::loncommon::csv_translate($seq->{'title'}).
1287: '","",';
1288: $Str2 .= '"score","total possible",';
1289: } elsif ($data eq 'scores' || $data eq 'tries') {
1290: $Str .= '"'.&Apache::loncommon::csv_translate($seq->{'title'}).
1291: '",';
1292: $Str .= '"",'x($seq->{'num_assess_parts'}-1+2);
1293: foreach my $res (@{$seq->{'contents'}}) {
1294: next if ($res->{'type'} ne 'assessment');
1295: foreach my $part (@{$res->{'parts'}}) {
1296: $Str2 .= '"'.&Apache::loncommon::csv_translate($res->{'title'}.', Part '.$part).'",';
1297: }
1298: }
1299: $Str2 .= '"score","total possible",';
1300: }
1301: }
1302: chop($Str);
1303: $Str .= "\n";
1304: print $outputfile $Str;
1305: if (defined($Str2)) {
1306: chop($Str2);
1307: $Str2 .= "\n";
1308: print $outputfile $Str2;
1309: }
1310: #
1311: # Initialize progress window
1312: my $studentcount = scalar(@Apache::lonstatistics::Students);
1313: %prog_state=&Apache::lonhtmlcommon::Create_PrgWin
1314: ($r,'CSV File Compilation Status',
1315: 'CSV File Compilation Progress', $studentcount);
1316: return;
1317: }
1318:
1319: sub csv_outputstudent {
1320: my ($r,$student) = @_;
1321: return if ($request_aborted);
1322: return if (! defined($outputfile));
1323: my $Str = '';
1324: #
1325: # Output student fields
1326: my @to_show = &get_student_fields_to_show();
1327: foreach my $field (@to_show) {
1328: $Str .= '"'.&Apache::loncommon::csv_translate($student->{$field}).'",';
1329: }
1330: #
1331: # Get student assessment data
1332: my %StudentsData;
1333: my @tmp = &Apache::loncoursedata::get_current_state($student->{'username'},
1334: $student->{'domain'},
1335: undef,
1336: $ENV{'request.course.id'});
1337: if ((scalar @tmp > 0) && ($tmp[0] !~ /^error:/)) {
1338: %StudentsData = @tmp;
1339: }
1340: #
1341: # Output performance data
1342: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
1343: my ($performance,$performance_length,$score,$seq_max,$rawdata);
1344: if ($base eq 'tries') {
1345: ($performance,$performance_length,$score,$seq_max,$rawdata) =
1346: &StudentTriesOnSequence($student,\%StudentsData,
1347: $seq,'no');
1348: } else {
1349: ($performance,$performance_length,$score,$seq_max,$rawdata) =
1350: &StudentPerformanceOnSequence($student,\%StudentsData,
1351: $seq,'no');
1352: }
1353: if ($data eq 'sum only' || $data eq 'parts correct') {
1354: $Str .= '"'.$score.'",';
1355: } elsif ($data eq 'sum and total' || $data eq 'parts correct total') {
1356: $Str .= '"'.$score.'","'.$seq_max.'",';
1357: } elsif ($data eq 'scores' || $data eq 'tries') {
1358: $Str .= '"'.join('","',(@$rawdata,$score,$seq_max)).'",';
1359: }
1360: }
1361: chop($Str);
1362: $Str .= "\n";
1363: print $outputfile $Str;
1364: #
1365: # Update the progress window
1366: &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,'last student');
1367: return;
1368: }
1369:
1370: sub csv_finish {
1371: my ($r) = @_;
1372: return if ($request_aborted);
1373: return if (! defined($outputfile));
1374: close($outputfile);
1375: #
1376: my $c = $r->connection();
1377: return if ($c->aborted());
1378: #
1379: # Close the progress window
1380: &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
1381: #
1382: # Tell the user where to get their csv file
1383: $r->print('<br />'.
1384: '<a href="'.$filename.'">Your csv file.</a>'."\n");
1385: $r->rflush();
1386: return;
1387:
1388: }
1389:
1390: }
1391:
1392: #######################################################
1393: #######################################################
1394:
1395: =pod
1396:
1397: =item &StudentTriesOnSequence()
1398:
1399: Inputs:
1400:
1401: =over 4
1402:
1403: =item $student
1404:
1405: =item $studentdata Hash ref to all student data
1406:
1407: =item $seq Hash ref, the sequence we are working on
1408:
1409: =item $links if defined we will output links to each resource.
1410:
1411: =back
1412:
1413: =cut
1414:
1415: #######################################################
1416: #######################################################
1417: sub StudentTriesOnSequence {
1418: my ($student,$studentdata,$seq,$links) = @_;
1419: $links = 'no' if (! defined($links));
1420: my $Str = '';
1421: my ($sum,$max) = (0,0);
1422: my $performance_length = 0;
1423: my @TriesData = ();
1424: my $tries;
1425: foreach my $resource (@{$seq->{'contents'}}) {
1426: next if ($resource->{'type'} ne 'assessment');
1427: my $resource_data = $studentdata->{$resource->{'symb'}};
1428: my $value = '';
1429: foreach my $partnum (@{$resource->{'parts'}}) {
1430: $tries = undef;
1431: $max++;
1432: $performance_length++;
1433: my $symbol = ' '; # default to space
1434: #
1435: if (exists($resource_data->{'resource.'.$partnum.'.solved'})) {
1436: my $status = $resource_data->{'resource.'.$partnum.'.solved'};
1437: if ($status eq 'correct_by_override') {
1438: $symbol = '+';
1439: $sum++;
1440: } elsif ($status eq 'incorrect_by_override') {
1441: $symbol = '-';
1442: } elsif ($status eq 'ungraded_attempted') {
1443: $symbol = '#';
1444: } elsif ($status eq 'incorrect_attempted') {
1445: $symbol = '.';
1446: } elsif ($status eq 'excused') {
1447: $symbol = 'x';
1448: $max--;
1449: } elsif ($status eq 'correct_by_student' &&
1450: exists($resource_data->{'resource.'.$partnum.'.tries'})){
1451: $tries = $resource_data->{'resource.'.$partnum.'.tries'};
1452: if ($tries > 9) {
1453: $symbol = '*';
1454: } elsif ($tries > 0) {
1455: $symbol = $tries;
1456: } else {
1457: $symbol = ' ';
1458: }
1459: $sum++;
1460: } elsif (exists($resource_data->{'resource.'.
1461: $partnum.'.tries'})){
1462: $symbol = '.';
1463: } else {
1464: $symbol = ' ';
1465: }
1466: } else {
1467: # Unsolved. Did they try?
1468: if (exists($resource_data->{'resource.'.$partnum.'.tries'})){
1469: $symbol = '.';
1470: } else {
1471: $symbol = ' ';
1472: }
1473: }
1474: #
1475: if (! defined($tries)) {
1476: $tries = $symbol;
1477: }
1478: push (@TriesData,$tries);
1479: #
1480: if ( ($links eq 'yes' && $symbol ne ' ') ||
1481: ($links eq 'all')) {
1482: if (length($symbol) > 1) {
1483: &Apache::lonnet::logthis('length of symbol "'.$symbol.'" > 1');
1484: }
1485: $symbol = '<a href="/adm/grades'.
1486: '?symb='.&Apache::lonnet::escape($resource->{'symb'}).
1487: '&student='.$student->{'username'}.
1488: '&domain='.$student->{'domain'}.
1489: '&command=submission">'.$symbol.'</a>';
1490: }
1491: $value .= $symbol;
1492: }
1493: $Str .= $value;
1494: }
1495: if ($seq->{'randompick'}) {
1496: $max = $seq->{'randompick'};
1497: }
1498: return ($Str,$performance_length,$sum,$max,\@TriesData);
1499: }
1500:
1501: #######################################################
1502: #######################################################
1503:
1504: =pod
1505:
1506: =item &StudentPerformanceOnSequence()
1507:
1508: Inputs:
1509:
1510: =over 4
1511:
1512: =item $student
1513:
1514: =item $studentdata Hash ref to all student data
1515:
1516: =item $seq Hash ref, the sequence we are working on
1517:
1518: =item $links if defined we will output links to each resource.
1519:
1520: =back
1521:
1522: =cut
1523:
1524: #######################################################
1525: #######################################################
1526: sub StudentPerformanceOnSequence {
1527: my ($student,$studentdata,$seq,$links) = @_;
1528: $links = 'no' if (! defined($links));
1529: my $Str = ''; # final result string
1530: my ($score,$max) = (0,0);
1531: my $performance_length = 0;
1532: my $symbol;
1533: my @ScoreData = ();
1534: my $partscore;
1535: foreach my $resource (@{$seq->{'contents'}}) {
1536: next if ($resource->{'type'} ne 'assessment');
1537: my $resource_data = $studentdata->{$resource->{'symb'}};
1538: foreach my $part (@{$resource->{'parts'}}) {
1539: $partscore = undef;
1540: my $weight = &Apache::lonnet::EXT('resource.'.$part.'.weight',
1541: $resource->{'symb'},
1542: $student->{'domain'},
1543: $student->{'username'},
1544: $student->{'section'});
1545: if (!defined($weight) || ($weight eq '')) {
1546: $weight=1;
1547: }
1548: #
1549: $max += $weight; # see the 'excused' branch below...
1550: $performance_length++; # one character per part
1551: $symbol = ' '; # default to space
1552: #
1553: my $awarded = 0;
1554: if (exists($resource_data->{'resource.'.$part.'.awarded'})) {
1555: $awarded = $resource_data->{'resource.'.$part.'.awarded'};
1556: }
1557: #
1558: $partscore = $weight*$awarded;
1559: $score += $partscore;
1560: $symbol = $weight;
1561: if (length($symbol) > 1) {
1562: $symbol = '*';
1563: }
1564: if (exists($resource_data->{'resource.'.$part.'.solved'})) {
1565: my $status = $resource_data->{'resource.'.$part.'.solved'};
1566: if ($status eq 'excused') {
1567: $symbol = 'x';
1568: $max -= $weight; # Do not count 'excused' problems.
1569: }
1570: } else {
1571: # Unsolved. Did they try?
1572: if (exists($resource_data->{'resource.'.$part.'.tries'})){
1573: $symbol = '.';
1574: } else {
1575: $symbol = ' ';
1576: }
1577: }
1578: #
1579: if ( ($links eq 'yes' && $symbol ne ' ') || ($links eq 'all')) {
1580: $symbol = '<a href="/adm/grades'.
1581: '?symb='.&Apache::lonnet::escape($resource->{'symb'}).
1582: '&student='.$student->{'username'}.
1583: '&domain='.$student->{'domain'}.
1584: '&command=submission">'.$symbol.'</a>';
1585: }
1586: if (! defined($partscore)) {
1587: $partscore = $symbol;
1588: }
1589: push (@ScoreData,$partscore);
1590: }
1591: $Str .= $symbol;
1592: }
1593: return ($Str,$performance_length,$score,$max,\@ScoreData);
1594: }
1595:
1596: #######################################################
1597: #######################################################
1598:
1599: =pod
1600:
1601: =item &CreateLegend()
1602:
1603: This function returns a formatted string containing the legend for the
1604: chart. The legend describes the symbols used to represent grades for
1605: problems.
1606:
1607: =cut
1608:
1609: #######################################################
1610: #######################################################
1611: sub CreateLegend {
1612: my $Str = "<p><pre>".
1613: " 1 correct by student in 1 try\n".
1614: " 7 correct by student in 7 tries\n".
1615: " * correct by student in more than 9 tries\n".
1616: " + correct by hand grading or override\n".
1617: " - incorrect by override\n".
1618: " . incorrect attempted\n".
1619: " # ungraded attempted\n".
1620: " not attempted (blank field)\n".
1621: " x excused".
1622: "</pre><p>";
1623: return $Str;
1624: }
1625:
1626: #######################################################
1627: #######################################################
1628:
1629: =pod
1630:
1631: =back
1632:
1633: =cut
1634:
1635: #######################################################
1636: #######################################################
1637:
1638: 1;
1639:
1640: __END__
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