File:
[LON-CAPA] /
loncom /
interface /
statistics /
lonstudentassessment.pm
Revision
1.55:
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Tue Jun 10 19:19:57 2003 UTC (21 years, 1 month ago) by
matthew
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HEAD
Interface cleanups - 'Update Display' is no more.
"Generate Statistics" and "Generate Chart" buttons now appear below the
selection dialogs, obviating the need for explainatory verbage.
Added a brief instructional messages to the classlist display.
Cleaned up the output of just a table in the single student mode.
1: # The LearningOnline Network with CAPA
2: #
3: # $Id: lonstudentassessment.pm,v 1.55 2003/06/10 19:19:57 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: # Call the initialize routine selected above
183: $initialize->($r);
184: foreach my $student (@Students) {
185: if($c->aborted()) {
186: $finish->($r);
187: return ;
188: }
189: # Call the output_student routine selected above
190: $output_student->($r,$student);
191: }
192: # Call the "finish" routine selected above
193: $finish->($r);
194: #
195: return;
196: }
197:
198: #######################################################
199: #######################################################
200: sub next_and_previous_buttons {
201: my $Str = '';
202: $Str .= '<input type="hidden" name="SelectedStudent" value="'.
203: $ENV{'form.SelectedStudent'}.'" />';
204: #
205: # Build the previous student link
206: my $previous = &Apache::lonstatistics::previous_student();
207: my $previousbutton = '';
208: if (defined($previous)) {
209: my $sname = $previous->{'username'}.':'.$previous->{'domain'};
210: $previousbutton .= '<input type="button" value="'.
211: 'Previous Student ('.
212: $previous->{'username'}.'@'.$previous->{'domain'}.')'.
213: '" onclick="document.Statistics.SelectedStudent.value='.
214: "'".$sname."'".';'.
215: 'document.Statistics.submit();" />';
216: } else {
217: $previousbutton .= '<input type="button" value="'.
218: 'Previous student (none)'.'" />';
219: }
220: #
221: # Build the next student link
222: my $next = &Apache::lonstatistics::next_student();
223: my $nextbutton = '';
224: if (defined($next)) {
225: my $sname = $next->{'username'}.':'.$next->{'domain'};
226: $nextbutton .= '<input type="button" value="'.
227: 'Next Student ('.
228: $next->{'username'}.'@'.$next->{'domain'}.')'.
229: '" onclick="document.Statistics.SelectedStudent.value='.
230: "'".$sname."'".';'.
231: 'document.Statistics.submit();" />';
232: } else {
233: $nextbutton .= '<input type="button" value="'.
234: 'Next student (none)'.'" />';
235: }
236: #
237: # Build the 'all students' button
238: my $all = '';
239: $all .= '<input type="button" value="All Students" '.
240: '" onclick="document.Statistics.SelectedStudent.value='.
241: "''".';'.'document.Statistics.submit();" />';
242: $Str .= $previousbutton.(' 'x5).$all.(' 'x5).$nextbutton;
243: return $Str;
244: }
245:
246: #######################################################
247: #######################################################
248:
249: sub get_student_fields_to_show {
250: my @to_show = @Apache::lonstatistics::SelectedStudentData;
251: foreach (@to_show) {
252: if ($_ eq 'all') {
253: @to_show = @Apache::lonstatistics::StudentDataOrder;
254: last;
255: }
256: }
257: return @to_show;
258: }
259:
260: #######################################################
261: #######################################################
262:
263: =pod
264:
265: =item &CreateInterface()
266:
267: Called by &BuildStudentAssessmentPage to create the top part of the
268: page which displays the chart.
269:
270: Inputs: None
271:
272: Returns: A string containing the HTML for the headers and top table for
273: the chart page.
274:
275: =cut
276:
277: #######################################################
278: #######################################################
279: sub CreateInterface {
280: my $Str = '';
281: # $Str .= &CreateLegend();
282: $Str .= '<table cellspacing="5">'."\n";
283: $Str .= '<tr>';
284: $Str .= '<td align="center"><b>Sections</b></td>';
285: $Str .= '<td align="center"><b>Student Data</b></td>';
286: $Str .= '<td align="center"><b>Enrollment Status</b></td>';
287: $Str .= '<td align="center"><b>Sequences and Folders</b></td>';
288: $Str .= '<td align="center"><b>Output Format</b></td>';
289: $Str .= '<td align="center"><b>Output Data</b></td>';
290: $Str .= '</tr>'."\n";
291: #
292: $Str .= '<tr><td align="center">'."\n";
293: $Str .= &Apache::lonstatistics::SectionSelect('Section','multiple',5);
294: $Str .= '</td><td align="center">';
295: my $only_seq_with_assessments = sub {
296: my $s=shift;
297: if ($s->{'num_assess'} < 1) {
298: return 0;
299: } else {
300: return 1;
301: }
302: };
303: $Str .= &Apache::lonstatistics::StudentDataSelect('StudentData','multiple',
304: 5,undef);
305: $Str .= '</td><td>'."\n";
306: $Str .= &Apache::lonhtmlcommon::StatusOptions(undef,undef,5);
307: $Str .= '</td><td>'."\n";
308: $Str .= &Apache::lonstatistics::MapSelect('Maps','multiple,all',5,
309: $only_seq_with_assessments);
310: $Str .= '</td><td>'."\n";
311: $Str .= &CreateAndParseOutputSelector();
312: $Str .= '</td><td>'."\n";
313: $Str .= &CreateAndParseOutputDataSelector();
314: $Str .= '</td></tr>'."\n";
315: $Str .= '</table>'."\n";
316: $Str .= '<input type="submit" value="Generate Chart" />';
317: $Str .= ' 'x8;
318: return $Str;
319: }
320:
321: #######################################################
322: #######################################################
323:
324: =pod
325:
326: =item &CreateAndParseOutputSelector()
327:
328: =cut
329:
330: #######################################################
331: #######################################################
332: my @OutputOptions =
333: ({ name => 'HTML, with links',
334: value => 'html, with links',
335: description => 'Output HTML with each symbol linked to the problem '.
336: 'which generated it.',
337: mode => 'html',
338: show_links => 'yes',
339: },
340: { name => 'HTML, with all links',
341: value => 'html, with all links',
342: description => 'Output HTML with each symbol linked to the problem '.
343: 'which generated it. '.
344: 'This includes links for unattempted problems.',
345: mode => 'html',
346: show_links => 'all',
347: },
348: { name => 'HTML, without links',
349: value => 'html, without links',
350: description => 'Output HTML. By not including links, the size of the'.
351: ' web page is greatly reduced. If your browser crashes on the '.
352: 'full display, try this.',
353: mode => 'html',
354: show_links => 'no',
355: },
356: { name => 'Excel',
357: value => 'excel',
358: description => 'Output an Excel file (compatable with Excel 95).',
359: mode => 'excel',
360: show_links => 'no',
361: },
362: # { name => 'multi-sheet Excel',
363: # value => 'multi-sheet excel',
364: # description => 'Output an Excel file (compatable with Excel 95), '.
365: # 'with a seperate worksheet for each sequence you have selected '.
366: # 'the data for each problem part '.
367: # '(number of tries, status, points awarded) will be listed.',
368: # mode => 'multi-sheet excel',
369: # show_links => 'no',
370: # },
371: # { name => 'multi-sheet Excel, by section',
372: # value => 'multi-sheet excel, by section',
373: # description => 'Output an Excel file (compatable with Excel 95), '.
374: # 'with a seperate worksheet for each sequence you have selected '.
375: # 'the data for each problem part '.
376: # '(number of tries, status, points awarded) will be listed. '.
377: # 'There will be one Excel workbook for each section selected.',
378: # mode => 'multi-sheet excel',
379: # show_links => 'no',
380: # },
381: { name => 'CSV',
382: value => 'csv',
383: description => 'Output a comma seperated values file suitable for '.
384: 'import into a spreadsheet.',
385: mode => 'csv',
386: show_links => 'no',
387: },
388: );
389:
390: sub OutputDescriptions {
391: my $Str = '';
392: $Str .= "<h2>Output Modes</h2>\n";
393: $Str .= "<dl>\n";
394: foreach my $outputmode (@OutputOptions) {
395: $Str .=" <dt>".$outputmode->{'name'}."</dt>\n";
396: $Str .=" <dd>".$outputmode->{'description'}."</dd>\n";
397: }
398: $Str .= "</dl>\n";
399: return $Str;
400: }
401:
402: sub CreateAndParseOutputSelector {
403: my $Str = '';
404: my $elementname = 'chartoutputmode';
405: #
406: # Format for output options is 'mode, restrictions';
407: my $selected = 'html, without links';
408: if (exists($ENV{'form.'.$elementname})) {
409: if (ref($ENV{'form.'.$elementname} eq 'ARRAY')) {
410: $selected = $ENV{'form.'.$elementname}->[0];
411: } else {
412: $selected = $ENV{'form.'.$elementname};
413: }
414: }
415: #
416: # Set package variables describing output mode
417: $show_links = 'no';
418: $output_mode = 'html';
419: foreach my $option (@OutputOptions) {
420: next if ($option->{'value'} ne $selected);
421: $output_mode = $option->{'mode'};
422: $show_links = $option->{'show_links'};
423: }
424:
425: #
426: # Build the form element
427: $Str = qq/<select size="5" name="$elementname">/;
428: foreach my $option (@OutputOptions) {
429: $Str .= "\n".' <option value="'.$option->{'value'}.'"';
430: $Str .= " selected " if ($option->{'value'} eq $selected);
431: $Str .= ">".$option->{'name'}."<\/option>";
432: }
433: $Str .= "\n</select>";
434: return $Str;
435: }
436:
437: ##
438: ## Data selector stuff
439: ##
440: my @OutputDataOptions =
441: ( { name =>'Tries',
442: base =>'tries',
443: value => 'tries',
444: shortdesc => 'Number of Tries before success on each Problem Part',
445: longdesc =>'The number of tries before success on each problem part.',
446: },
447: { name =>'Parts Correct',
448: base =>'tries',
449: value => 'parts correct',
450: shortdesc => 'Number of Problem Parts completed successfully.',
451: longdesc => 'The Number of Problem Parts completed successfully.',
452: },
453: { name =>'Parts Correct & Maximums',
454: base =>'tries',
455: value => 'parts correct total',
456: shortdesc => 'Number of Problem Parts completed successfully.',
457: longdesc => 'The Number of Problem Parts completed successfully and '.
458: 'the maximum possible for each student',
459: },
460: { name => 'Scores',
461: base => 'scores',
462: value => 'scores',
463: shortdesc => 'Score on each Problem Part',
464: longdesc =>'The students score on each problem part, computed as'.
465: 'the part weight * part awarded',
466: },
467: { name => 'Scores Sum',
468: base => 'scores',
469: value => 'sum only',
470: shortdesc => 'Sum of Scores on each Problem Part',
471: longdesc =>'The total of the scores of the student on each problem'.
472: ' part in the sequences or folders selected.',
473: },
474: { name => 'Scores Sum & Maximums',
475: base => 'scores',
476: value => 'sum and total',
477: shortdesc => 'Total Score and Maximum Possible for each '.
478: 'Sequence or Folder',
479: longdesc => 'The total of the scores of the student on each problem'.
480: ' and the maximum possible for that student on each Sequence or '.
481: ' Folder.',
482: },
483: { name => 'Summary Table (Scores)',
484: base => 'scores',
485: value => 'final table scores',
486: shortdesc => 'Summary of Scores',
487: longdesc => '',
488: },
489: { name => 'Summary Table (Parts)',
490: base => 'tries',
491: value => 'final table parts',
492: shortdesc => 'Summary of Parts Correct',
493: longdesc => '',
494: }
495: );
496:
497: sub CreateAndParseOutputDataSelector {
498: my $Str = '';
499: my $elementname = 'chartoutputdata';
500: #
501: my $selected = 'scores';
502: if (exists($ENV{'form.'.$elementname})) {
503: if (ref($ENV{'form.'.$elementname} eq 'ARRAY')) {
504: $selected = $ENV{'form.'.$elementname}->[0];
505: } else {
506: $selected = $ENV{'form.'.$elementname};
507: }
508: }
509: #
510: $data = 'scores';
511: foreach my $option (@OutputDataOptions) {
512: if ($option->{'value'} eq $selected) {
513: $data = $option->{'value'};
514: $base = $option->{'base'};
515: $datadescription = $option->{'shortdesc'};
516: }
517: }
518: #
519: # Build the form element
520: $Str = qq/<select size="5" name="$elementname">/;
521: foreach my $option (@OutputDataOptions) {
522: $Str .= "\n".' <option value="'.$option->{'value'}.'"';
523: $Str .= " selected " if ($option->{'value'} eq $data);
524: $Str .= ">".$option->{'name'}."<\/option>";
525: }
526: $Str .= "\n</select>";
527: return $Str;
528:
529: }
530:
531: #######################################################
532: #######################################################
533:
534: =pod
535:
536: =head2 HTML output routines
537:
538: =item &html_initialize($r)
539:
540: Create labels for the columns of student data to show.
541:
542: =item &html_outputstudent($r,$student)
543:
544: Return a line of the chart for a student.
545:
546: =item &html_finish($r)
547:
548: =cut
549:
550: #######################################################
551: #######################################################
552: {
553: my $padding;
554: my $count;
555:
556: my $nodata_count; # The number of students for which there is no data
557: my %prog_state; # progress state used by loncommon PrgWin routines
558:
559: sub html_initialize {
560: my ($r) = @_;
561: #
562: $padding = ' 'x3;
563: $count = 0;
564: $nodata_count = 0;
565: #
566: $r->print("<h3>".$ENV{'course.'.$ENV{'request.course.id'}.'.description'}.
567: " ".localtime(time)."</h3>");
568:
569: if ($data !~ /^final table/) {
570: $r->print("<h3>".$datadescription."</h3>");
571: }
572: #
573: # Set up progress window for 'final table' display only
574: if ($data =~ /^final table/) {
575: my $studentcount = scalar(@Apache::lonstatistics::Students);
576: %prog_state=&Apache::lonhtmlcommon::Create_PrgWin
577: ($r,'Summary Table Status',
578: 'Summary Table Compilation Progress', $studentcount);
579: }
580: my $Str = "<pre>\n";
581: # First, the @StudentData fields need to be listed
582: my @to_show = &get_student_fields_to_show();
583: foreach my $field (@to_show) {
584: my $title=$Apache::lonstatistics::StudentData{$field}->{'title'};
585: my $base =$Apache::lonstatistics::StudentData{$field}->{'base_width'};
586: my $width=$Apache::lonstatistics::StudentData{$field}->{'width'};
587: $Str .= $title.' 'x($width-$base).$padding;
588: }
589: # Now the selected sequences need to be listed
590: foreach my $sequence (&Apache::lonstatistics::Sequences_with_Assess()){
591: my $title = $sequence->{'title'};
592: my $base = $sequence->{'base_width'};
593: my $width = $sequence->{'width'};
594: $Str .= $title.' 'x($width-$base).$padding;
595: }
596: $Str .= "total</pre>\n";
597: $Str .= "<pre>";
598: #
599: # Check for suppression of output
600: if ($data =~ /^final table/) {
601: $Str = '';
602: }
603: $r->print($Str);
604: $r->rflush();
605: return;
606: }
607:
608: sub html_outputstudent {
609: my ($r,$student) = @_;
610: my $Str = '';
611: #
612: if($count++ % 5 == 0 && $count > 0 && $data !~ /^final table/) {
613: $r->print("</pre><pre>");
614: }
615: # First, the @StudentData fields need to be listed
616: my @to_show = &get_student_fields_to_show();
617: foreach my $field (@to_show) {
618: my $title=$student->{$field};
619: my $base = length($title);
620: my $width=$Apache::lonstatistics::StudentData{$field}->{'width'};
621: $Str .= $title.' 'x($width-$base).$padding;
622: }
623: # Get ALL the students data
624: my %StudentsData;
625: my @tmp = &Apache::loncoursedata::get_current_state
626: ($student->{'username'},$student->{'domain'},undef,
627: $ENV{'request.course.id'});
628: if ((scalar @tmp > 0) && ($tmp[0] !~ /^error:/)) {
629: %StudentsData = @tmp;
630: }
631: if (scalar(@tmp) < 1) {
632: $nodata_count++;
633: return if ($data =~ /^final table/);
634: $Str .= '<font color="blue">No Course Data</font>'."\n";
635: $r->print($Str);
636: $r->rflush();
637: return;
638: }
639: #
640: # By sequence build up the data
641: my $studentstats;
642: my $PerformanceStr = '';
643: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
644: my ($performance,$performance_length,$score,$seq_max,$rawdata);
645: if ($base eq 'tries') {
646: ($performance,$performance_length,$score,$seq_max,$rawdata) =
647: &StudentTriesOnSequence($student,\%StudentsData,
648: $seq,$show_links);
649: } else {
650: ($performance,$performance_length,$score,$seq_max,$rawdata) =
651: &StudentPerformanceOnSequence($student,\%StudentsData,
652: $seq,$show_links);
653: }
654: my $ratio = sprintf("%3d",$score).'/'.sprintf("%3d",$seq_max);
655: #
656: if ($data eq 'sum and total' || $data eq 'parts correct total') {
657: $performance = $ratio;
658: $performance .= ' 'x($seq->{'width'}-length($ratio));
659: } elsif ($data eq 'sum only' || $data eq 'parts correct') {
660: $performance = $score;
661: $performance .= ' 'x($seq->{'width'}-length($score));
662: } else {
663: # Pad with extra spaces
664: $performance .= ' 'x($seq->{'width'}-$performance_length-
665: length($ratio)
666: ).$ratio;
667: }
668: #
669: $Str .= $performance.$padding;
670: #
671: $studentstats->{$seq->{'symb'}}->{'score'}= $score;
672: $studentstats->{$seq->{'symb'}}->{'max'} = $seq_max;
673: }
674: #
675: # Total it up and store the statistics info.
676: my ($score,$max) = (0,0);
677: while (my ($symb,$seq_stats) = each (%{$studentstats})) {
678: $Statistics->{$symb}->{'score'} += $seq_stats->{'score'};
679: if ($Statistics->{$symb}->{'max'} < $seq_stats->{'max'}) {
680: $Statistics->{$symb}->{'max'} = $seq_stats->{'max'};
681: }
682: $score += $seq_stats->{'score'};
683: $max += $seq_stats->{'max'};
684: }
685: $Str .= ' '.' 'x(length($max)-length($score)).$score.'/'.$max;
686: $Str .= " \n";
687: #
688: # Check for suppressed output and update the progress window if so...
689: if ($data =~ /^final table/) {
690: $Str = '';
691: &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,
692: 'last student');
693: }
694: #
695: $r->print($Str);
696: #
697: $r->rflush();
698: return;
699: }
700:
701: sub html_finish {
702: my ($r) = @_;
703: #
704: # Check for suppressed output and close the progress window if so
705: if ($data =~ /^final table/) {
706: &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
707: } else {
708: $r->print("</pre>\n");
709: }
710: if ($single_student_mode) {
711: $r->print(&SingleStudentTotal());
712: } else {
713: $r->print(&StudentAverageTotal());
714: }
715: $r->rflush();
716: return;
717: }
718:
719: sub StudentAverageTotal {
720: my $Str = "<h3>Summary Tables</h3>\n";
721: my $num_students = scalar(@Apache::lonstatistics::Students);
722: my $total_ave = 0;
723: my $total_max = 0;
724: $Str .= '<table border=2 cellspacing="1">'."\n";
725: $Str .= "<tr><th>Title</th><th>Average</th><th>Maximum</th></tr>\n";
726: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
727: my $ave;
728: if ($num_students > $nodata_count) {
729: $ave = int(100*($Statistics->{$seq->{'symb'}}->{'score'}/
730: ($num_students-$nodata_count)))/100;
731: } else {
732: $ave = 0;
733: }
734: $total_ave += $ave;
735: my $max = $Statistics->{$seq->{'symb'}}->{'max'};
736: $total_max += $max;
737: if ($ave == 0) {
738: $ave = "0.00";
739: }
740: $ave .= ' ';
741: $max .= ' ';
742: $Str .= '<tr><td>'.$seq->{'title'}.'</td>'.
743: '<td align="right">'.$ave.'</td>'.
744: '<td align="right">'.$max.'</td></tr>'."\n";
745: }
746: $total_ave = int(100*$total_ave)/100; # only two digit
747: $Str .= "</table>\n";
748: $Str .= '<table border=2 cellspacing="1">'."\n";
749: $Str .= '<tr><th>Number of Students</th><th>Average</th>'.
750: "<th>Maximum</th></tr>\n";
751: $Str .= '<tr><td>'.($num_students-$nodata_count).'</td>'.
752: '<td>'.$total_ave.'</td><td>'.$total_max.'</td>';
753: $Str .= "</table>\n";
754: return $Str;
755: }
756:
757: sub SingleStudentTotal {
758: my $student = &Apache::lonstatistics::current_student();
759: my $Str = "<h3>Summary table for ".$student->{'fullname'}." ".
760: $student->{'username'}.'@'.$student->{'domain'}."</h3>\n";
761: $Str .= '<table border=2 cellspacing="1">'."\n";
762: $Str .=
763: "<tr><th>Sequence or Folder</th><th>Score</th><th>Maximum</th></tr>\n";
764: my $total = 0;
765: my $total_max = 0;
766: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
767: my $value = $Statistics->{$seq->{'symb'}}->{'score'};
768: my $max = $Statistics->{$seq->{'symb'}}->{'max'};
769: $Str .= '<tr><td>'.$seq->{'title'}.'</td>'.
770: '<td align="right">'.$value.'</td>'.
771: '<td align="right">'.$max.'</td></tr>'."\n";
772: $total += $value;
773: $total_max +=$max;
774: }
775: $Str .= '<tr><td><b>Total</b></td>'.
776: '<td align="right">'.$total.'</td>'.
777: '<td align="right">'.$total_max."</td></tr>\n";
778: $Str .= "</table>\n";
779: return $Str;
780: }
781:
782: }
783:
784: #######################################################
785: #######################################################
786:
787: =pod
788:
789: =head2 Multi-Sheet EXCEL subroutines
790:
791: =item &multi_sheet_excel_initialize($r)
792:
793: =item &multi_sheet_excel_outputstudent($r,$student)
794:
795: =item &multi_sheet_excel_finish($r)
796:
797: =cut
798:
799: #######################################################
800: #######################################################
801: {
802:
803: sub multi_sheet_excel_initialize {
804: my ($r)=@_;
805: $r->print("<h1>Not yet implemented</h1>");
806: #
807: # Estimate the size of the file. We would like to have < 5 megs of data.
808: my $max_size = 5000000;
809: my $num_students = scalar(@Apache::lonstatistics::Students);
810: my $num_sequences = 0;
811: my $num_data_per_part = 2; # 'status' and 'numtries'
812: my $fields_per_student = scalar(&get_student_fields_to_show());
813: my $bytes_per_field = 20; # Back of the envelope calculation
814: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
815: $num_sequences++ if ($seq->{'num_assess'} > 0);
816: $fields_per_student += $num_data_per_part * $seq->{'num_assess_parts'};
817: }
818: my $size_estimate = $fields_per_student*$num_students*$bytes_per_field;
819: #
820: # Compute number of workbooks
821: my $num_workbooks = 1;
822: if ($size_estimate > $max_size) { # try to stay under 5 megs
823: $num_workbooks += int($size_estimate / $max_size);
824: }
825: # if ($data eq ) {
826: # if (@Apache::lonstatistics::SelectedSections > 1 &&
827: # $Apache::lonstatistics::SelectedSections[0] ne 'all') {
828: # $num_workbooks = scalar(@Apache::lonstatistics::SelectedSections);
829: # } else {
830: # # @Apache::lonstatistics::Sections contains 'all' as well.
831: # $num_workbooks = scalar(@Apache::lonstatistics::Sections) - 1;
832: # }
833: # }
834:
835: $r->print("Maximum allowed size: ".$max_size." bytes<br />");
836: $r->print("Number of students: ".$num_students."<br />");
837: $r->print("Number of fields per student: ".$fields_per_student."<br />");
838: $r->print("Total number of fields: ".($fields_per_student*$num_students).
839: "<br />");
840: $r->print("Bytes per field: ".$bytes_per_field." (estimated)"."<br />");
841: $r->print("Estimated size: ".$size_estimate." bytes<br />");
842: $r->print("Number of workbooks: ".$num_workbooks."<br />");
843: $r->rflush();
844: return;
845: }
846:
847: sub multi_sheet_excel_outputstudent {
848: my ($r,$student) = @_;
849: }
850:
851: sub multi_sheet_excel_finish {
852: my ($r) = @_;
853: }
854:
855: }
856: #######################################################
857: #######################################################
858:
859: =pod
860:
861: =head2 EXCEL subroutines
862:
863: =item &excel_initialize($r)
864:
865: =item &excel_outputstudent($r,$student)
866:
867: =item &excel_finish($r)
868:
869: =cut
870:
871: #######################################################
872: #######################################################
873: {
874:
875: my $excel_sheet;
876: my $excel_workbook;
877:
878: my $filename;
879: my $rows_output;
880: my $cols_output;
881:
882: my %prog_state; # progress window state
883: my $request_aborted;
884:
885: sub excel_initialize {
886: my ($r) = @_;
887: #
888: $request_aborted = undef;
889: my $total_columns = scalar(&get_student_fields_to_show());
890: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
891: # Add 2 because we need a 'sum' and 'total' column for each
892: $total_columns += $seq->{'num_assess_parts'}+2;
893: }
894: if ($data eq 'tries' && $total_columns > 255) {
895: $r->print(<<END);
896: <h2>Unable to Complete Request</h2>
897: <p>
898: LON-CAPA is unable to produce your Excel spreadsheet because your selections
899: will result in more than 255 columns. Excel allows only 255 columns in a
900: spreadsheet.
901: </p><p>
902: You may consider reducing the number of <b>Sequences or Folders</b> you
903: have selected.
904: </p><p>
905: LON-CAPA can produce <b>CSV</b> files of this data or Excel files of the
906: summary data (<b>Parts Correct</b> or <b>Parts Correct & Totals</b>).
907: </p>
908: END
909: $request_aborted = 1;
910: }
911: if ($data eq 'scores' && $total_columns > 255) {
912: $r->print(<<END);
913: <h2>Unable to Complete Request</h2>
914: <p>
915: LON-CAPA is unable to produce your Excel spreadsheet because your selections
916: will result in more than 255 columns. Excel allows only 255 columns in a
917: spreadsheet.
918: </p><p>
919: You may consider reducing the number of <b>Sequences or Folders</b> you
920: have selected.
921: </p><p>
922: LON-CAPA can produce <b>CSV</b> files of this data or Excel files of the
923: summary data (<b>Scores Sum</b> or <b>Scores Sum & Totals</b>).
924: </p>
925: END
926: $request_aborted = 1;
927: }
928: if ($data =~ /^final table/) {
929: $r->print(<<END);
930: <h2>Unable to Complete Request</h2>
931: <p>
932: The <b>Summary Table (Scores)</b> option is not available for non-HTML output.
933: </p>
934: END
935: $request_aborted = 1;
936: }
937: return if ($request_aborted);
938: #
939: $filename = '/prtspool/'.
940: $ENV{'user.name'}.'_'.$ENV{'user.domain'}.'_'.
941: time.'_'.rand(1000000000).'.xls';
942: #
943: $excel_workbook = undef;
944: $excel_sheet = undef;
945: #
946: $rows_output = 0;
947: $cols_output = 0;
948: #
949: # Create sheet
950: $excel_workbook = Spreadsheet::WriteExcel->new('/home/httpd'.$filename);
951: #
952: # Check for errors
953: if (! defined($excel_workbook)) {
954: $r->log_error("Error creating excel spreadsheet $filename: $!");
955: $r->print("Problems creating new Excel file. ".
956: "This error has been logged. ".
957: "Please alert your LON-CAPA administrator");
958: return ;
959: }
960: #
961: # The excel spreadsheet stores temporary data in files, then put them
962: # together. If needed we should be able to disable this (memory only).
963: # The temporary directory must be specified before calling 'addworksheet'.
964: # File::Temp is used to determine the temporary directory.
965: $excel_workbook->set_tempdir($Apache::lonnet::tmpdir);
966: #
967: # Add a worksheet
968: my $sheetname = $ENV{'course.'.$ENV{'request.course.id'}.'.description'};
969: if (length($sheetname) > 31) {
970: $sheetname = substr($sheetname,0,31);
971: }
972: $excel_sheet = $excel_workbook->addworksheet($sheetname);
973: #
974: # Put the course description in the header
975: $excel_sheet->write($rows_output,$cols_output++,
976: $ENV{'course.'.$ENV{'request.course.id'}.'.description'});
977: $cols_output += 3;
978: #
979: # Put a description of the sections listed
980: my $sectionstring = '';
981: my @Sections = @Apache::lonstatistics::SelectedSections;
982: if (scalar(@Sections) > 1) {
983: if (scalar(@Sections) > 2) {
984: my $last = pop(@Sections);
985: $sectionstring = "Sections ".join(', ',@Sections).', and '.$last;
986: } else {
987: $sectionstring = "Sections ".join(' and ',@Sections);
988: }
989: } else {
990: if ($Sections[0] eq 'all') {
991: $sectionstring = "All sections";
992: } else {
993: $sectionstring = "Section ".$Sections[0];
994: }
995: }
996: $excel_sheet->write($rows_output,$cols_output++,$sectionstring);
997: $cols_output += scalar(@Sections);
998: #
999: # Put the date in there too
1000: $excel_sheet->write($rows_output++,$cols_output++,
1001: 'Compiled on '.localtime(time));
1002: #
1003: $cols_output = 0;
1004: $excel_sheet->write($rows_output++,$cols_output++,$datadescription);
1005: #
1006: if ($data eq 'tries' || $data eq 'scores') {
1007: $rows_output++;
1008: }
1009: #
1010: # Add the student headers
1011: $cols_output = 0;
1012: foreach my $field (&get_student_fields_to_show()) {
1013: $excel_sheet->write($rows_output,$cols_output++,$field);
1014: }
1015: my $row_offset = 0;
1016: if ($data eq 'tries' || $data eq 'scores') {
1017: $row_offset = -1;
1018: }
1019: #
1020: # Add the remaining column headers
1021: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
1022: $excel_sheet->write($rows_output+$row_offset,
1023: $cols_output,$seq->{'title'});
1024: if ($data eq 'tries' || $data eq 'scores') {
1025: foreach my $res (@{$seq->{'contents'}}) {
1026: next if ($res->{'type'} ne 'assessment');
1027: if (scalar(@{$res->{'parts'}}) > 1) {
1028: foreach my $part (@{$res->{'parts'}}) {
1029: $excel_sheet->write($rows_output,
1030: $cols_output++,
1031: $res->{'title'}.' part '.$part);
1032: }
1033: } else {
1034: $excel_sheet->write($rows_output,
1035: $cols_output++,
1036: $res->{'title'});
1037: }
1038: }
1039: $excel_sheet->write($rows_output,$cols_output++,'score');
1040: $excel_sheet->write($rows_output,$cols_output++,'maximum');
1041: } elsif ($data eq 'sum and total' || $data eq 'parts correct total') {
1042: $excel_sheet->write($rows_output+1,$cols_output,'score');
1043: $excel_sheet->write($rows_output+1,$cols_output+1,'maximum');
1044: $cols_output += 2;
1045: } else {
1046: $cols_output++;
1047: }
1048: }
1049: #
1050: # Bookkeeping
1051: if ($data eq 'sum and total' || $data eq 'parts correct total') {
1052: $rows_output += 2;
1053: } else {
1054: $rows_output += 1;
1055: }
1056: #
1057: # Output a row for MAX
1058: $cols_output = 0;
1059: foreach my $field (&get_student_fields_to_show()) {
1060: if ($field eq 'username' || $field eq 'fullname' ||
1061: $field eq 'id') {
1062: $excel_sheet->write($rows_output,$cols_output++,'Maximum');
1063: } else {
1064: $excel_sheet->write($rows_output,$cols_output++,'');
1065: }
1066: }
1067: #
1068: # Add the maximums for each sequence or assessment
1069: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
1070: my $weight;
1071: my $max = 0;
1072: foreach my $resource (@{$seq->{'contents'}}) {
1073: next if ($resource->{'type'} ne 'assessment');
1074: foreach my $part (@{$resource->{'parts'}}) {
1075: $weight = 1;
1076: if ($base eq 'scores') {
1077: $weight = &Apache::lonnet::EXT
1078: ('resource.'.$part.'.weight',$resource->{'symb'},
1079: undef,undef,undef);
1080: if (!defined($weight) || ($weight eq '')) {
1081: $weight=1;
1082: }
1083: }
1084: if ($data eq 'scores') {
1085: $excel_sheet->write($rows_output,$cols_output++,$weight);
1086: } elsif ($data eq 'tries') {
1087: $excel_sheet->write($rows_output,$cols_output++,'');
1088: }
1089: $max += $weight;
1090: }
1091: }
1092: if (! ($data eq 'sum only' || $data eq 'parts correct')) {
1093: $excel_sheet->write($rows_output,$cols_output++,'');
1094: }
1095: $excel_sheet->write($rows_output,$cols_output++,$max);
1096: }
1097: $rows_output++;
1098: #
1099: # Let the user know what we are doing
1100: my $studentcount = scalar(@Apache::lonstatistics::Students);
1101: $r->print("<h1>Compiling Excel spreadsheet for ".
1102: $studentcount.' student');
1103: $r->print('s') if ($studentcount > 1);
1104: $r->print("</h1>\n");
1105: $r->rflush();
1106: #
1107: # Initialize progress window
1108: %prog_state=&Apache::lonhtmlcommon::Create_PrgWin
1109: ($r,'Excel File Compilation Status',
1110: 'Excel File Compilation Progress', $studentcount);
1111: #
1112: return;
1113: }
1114:
1115: sub excel_outputstudent {
1116: my ($r,$student) = @_;
1117: return if ($request_aborted);
1118: return if (! defined($excel_sheet));
1119: $cols_output=0;
1120: #
1121: # Write out student data
1122: my @to_show = &get_student_fields_to_show();
1123: foreach my $field (@to_show) {
1124: $excel_sheet->write($rows_output,$cols_output++,$student->{$field});
1125: }
1126: #
1127: # Get student assessment data
1128: my %StudentsData;
1129: my @tmp = &Apache::loncoursedata::get_current_state($student->{'username'},
1130: $student->{'domain'},
1131: undef,
1132: $ENV{'request.course.id'});
1133: if ((scalar @tmp > 0) && ($tmp[0] !~ /^error:/)) {
1134: %StudentsData = @tmp;
1135: }
1136: #
1137: # Write out sequence scores and totals data
1138: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
1139: my ($performance,$performance_length,$score,$seq_max,$rawdata);
1140: if ($base eq 'tries') {
1141: ($performance,$performance_length,$score,$seq_max,$rawdata) =
1142: &StudentTriesOnSequence($student,\%StudentsData,
1143: $seq,'no');
1144: } else {
1145: ($performance,$performance_length,$score,$seq_max,$rawdata) =
1146: &StudentPerformanceOnSequence($student,\%StudentsData,
1147: $seq,'no');
1148: }
1149: if ($data eq 'tries' || $data eq 'scores') {
1150: foreach my $value (@$rawdata) {
1151: $excel_sheet->write($rows_output,$cols_output++,$value);
1152: }
1153: $excel_sheet->write($rows_output,$cols_output++,$score);
1154: $excel_sheet->write($rows_output,$cols_output++,$seq_max);
1155: } elsif ($data eq 'sum and total' || $data eq 'sum only' ||
1156: $data eq 'parts correct' || $data eq 'parts correct total') {
1157: $excel_sheet->write($rows_output,$cols_output++,$score);
1158: }
1159: if ($data eq 'sum and total' || $data eq 'parts correct total') {
1160: $excel_sheet->write($rows_output,$cols_output++,$seq_max);
1161: }
1162: }
1163: #
1164: # Bookkeeping
1165: $rows_output++;
1166: $cols_output=0;
1167: #
1168: # Update the progress window
1169: &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,'last student');
1170: return;
1171: }
1172:
1173: sub excel_finish {
1174: my ($r) = @_;
1175: return if ($request_aborted);
1176: return if (! defined($excel_sheet));
1177: #
1178: # Write the excel file
1179: $excel_workbook->close();
1180: my $c = $r->connection();
1181: #
1182: return if($c->aborted());
1183: #
1184: # Close the progress window
1185: &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
1186: #
1187: # Tell the user where to get their excel file
1188: $r->print('<br />'.
1189: '<a href="'.$filename.'">Your Excel spreadsheet.</a>'."\n");
1190: $r->rflush();
1191: return;
1192: }
1193:
1194: }
1195: #######################################################
1196: #######################################################
1197:
1198: =pod
1199:
1200: =head2 CSV output routines
1201:
1202: =item &csv_initialize($r)
1203:
1204: =item &csv_outputstudent($r,$student)
1205:
1206: =item &csv_finish($r)
1207:
1208: =cut
1209:
1210: #######################################################
1211: #######################################################
1212: {
1213:
1214: my $outputfile;
1215: my $filename;
1216: my $request_aborted;
1217: my %prog_state; # progress window state
1218:
1219: sub csv_initialize{
1220: my ($r) = @_;
1221: #
1222: # Clean up
1223: $filename = undef;
1224: $outputfile = undef;
1225: undef(%prog_state);
1226: #
1227: # Deal with unimplemented requests
1228: $request_aborted = undef;
1229: if ($data =~ /final table/) {
1230: $r->print(<<END);
1231: <h2>Unable to Complete Request</h2>
1232: <p>
1233: The <b>Summary Table (Scores)</b> option is not available for non-HTML output.
1234: </p>
1235: END
1236: $request_aborted = 1;
1237: }
1238: return if ($request_aborted);
1239:
1240: #
1241: # Open a file
1242: $filename = '/prtspool/'.
1243: $ENV{'user.name'}.'_'.$ENV{'user.domain'}.'_'.
1244: time.'_'.rand(1000000000).'.csv';
1245: unless ($outputfile = Apache::File->new('>/home/httpd'.$filename)) {
1246: $r->log_error("Couldn't open $filename for output $!");
1247: $r->print("Problems occured in writing the csv file. ".
1248: "This error has been logged. ".
1249: "Please alert your LON-CAPA administrator.");
1250: $outputfile = undef;
1251: }
1252: #
1253: # Datestamp
1254: my $description = $ENV{'course.'.$ENV{'request.course.id'}.'.description'};
1255: print $outputfile '"'.&Apache::loncommon::csv_translate($description).'",'.
1256: '"'.&Apache::loncommon::csv_translate(scalar(localtime(time))).'"'.
1257: "\n";
1258: #
1259: # Print out the headings
1260: my $Str = '';
1261: my $Str2 = undef;
1262: foreach my $field (&get_student_fields_to_show()) {
1263: if ($data eq 'sum only') {
1264: $Str .= '"'.&Apache::loncommon::csv_translate($field).'",';
1265: } elsif ($data eq 'sum and total' || $data eq 'parts correct total') {
1266: $Str .= '"",'; # first row empty on the student fields
1267: $Str2 .= '"'.&Apache::loncommon::csv_translate($field).'",';
1268: } elsif ($data eq 'scores' || $data eq 'tries' ||
1269: $data eq 'parts correct') {
1270: $Str .= '"",';
1271: $Str2 .= '"'.&Apache::loncommon::csv_translate($field).'",';
1272: }
1273: }
1274: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
1275: if ($data eq 'sum only' || $data eq 'parts correct') {
1276: $Str .= '"'.&Apache::loncommon::csv_translate($seq->{'title'}).
1277: '",';
1278: } elsif ($data eq 'sum and total' || $data eq 'parts correct total') {
1279: $Str .= '"'.&Apache::loncommon::csv_translate($seq->{'title'}).
1280: '","",';
1281: $Str2 .= '"score","total possible",';
1282: } elsif ($data eq 'scores' || $data eq 'tries') {
1283: $Str .= '"'.&Apache::loncommon::csv_translate($seq->{'title'}).
1284: '",';
1285: $Str .= '"",'x($seq->{'num_assess_parts'}-1+2);
1286: foreach my $res (@{$seq->{'contents'}}) {
1287: next if ($res->{'type'} ne 'assessment');
1288: foreach my $part (@{$res->{'parts'}}) {
1289: $Str2 .= '"'.&Apache::loncommon::csv_translate($res->{'title'}.', Part '.$part).'",';
1290: }
1291: }
1292: $Str2 .= '"score","total possible",';
1293: }
1294: }
1295: chop($Str);
1296: $Str .= "\n";
1297: print $outputfile $Str;
1298: if (defined($Str2)) {
1299: chop($Str2);
1300: $Str2 .= "\n";
1301: print $outputfile $Str2;
1302: }
1303: #
1304: # Initialize progress window
1305: my $studentcount = scalar(@Apache::lonstatistics::Students);
1306: %prog_state=&Apache::lonhtmlcommon::Create_PrgWin
1307: ($r,'CSV File Compilation Status',
1308: 'CSV File Compilation Progress', $studentcount);
1309: return;
1310: }
1311:
1312: sub csv_outputstudent {
1313: my ($r,$student) = @_;
1314: return if ($request_aborted);
1315: return if (! defined($outputfile));
1316: my $Str = '';
1317: #
1318: # Output student fields
1319: my @to_show = &get_student_fields_to_show();
1320: foreach my $field (@to_show) {
1321: $Str .= '"'.&Apache::loncommon::csv_translate($student->{$field}).'",';
1322: }
1323: #
1324: # Get student assessment data
1325: my %StudentsData;
1326: my @tmp = &Apache::loncoursedata::get_current_state($student->{'username'},
1327: $student->{'domain'},
1328: undef,
1329: $ENV{'request.course.id'});
1330: if ((scalar @tmp > 0) && ($tmp[0] !~ /^error:/)) {
1331: %StudentsData = @tmp;
1332: }
1333: #
1334: # Output performance data
1335: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
1336: my ($performance,$performance_length,$score,$seq_max,$rawdata);
1337: if ($base eq 'tries') {
1338: ($performance,$performance_length,$score,$seq_max,$rawdata) =
1339: &StudentTriesOnSequence($student,\%StudentsData,
1340: $seq,'no');
1341: } else {
1342: ($performance,$performance_length,$score,$seq_max,$rawdata) =
1343: &StudentPerformanceOnSequence($student,\%StudentsData,
1344: $seq,'no');
1345: }
1346: if ($data eq 'sum only' || $data eq 'parts correct') {
1347: $Str .= '"'.$score.'",';
1348: } elsif ($data eq 'sum and total' || $data eq 'parts correct total') {
1349: $Str .= '"'.$score.'","'.$seq_max.'",';
1350: } elsif ($data eq 'scores' || $data eq 'tries') {
1351: $Str .= '"'.join('","',(@$rawdata,$score,$seq_max)).'",';
1352: }
1353: }
1354: chop($Str);
1355: $Str .= "\n";
1356: print $outputfile $Str;
1357: #
1358: # Update the progress window
1359: &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,'last student');
1360: return;
1361: }
1362:
1363: sub csv_finish {
1364: my ($r) = @_;
1365: return if ($request_aborted);
1366: return if (! defined($outputfile));
1367: close($outputfile);
1368: #
1369: my $c = $r->connection();
1370: return if ($c->aborted());
1371: #
1372: # Close the progress window
1373: &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
1374: #
1375: # Tell the user where to get their csv file
1376: $r->print('<br />'.
1377: '<a href="'.$filename.'">Your csv file.</a>'."\n");
1378: $r->rflush();
1379: return;
1380:
1381: }
1382:
1383: }
1384:
1385: #######################################################
1386: #######################################################
1387:
1388: =pod
1389:
1390: =item &StudentTriesOnSequence()
1391:
1392: Inputs:
1393:
1394: =over 4
1395:
1396: =item $student
1397:
1398: =item $studentdata Hash ref to all student data
1399:
1400: =item $seq Hash ref, the sequence we are working on
1401:
1402: =item $links if defined we will output links to each resource.
1403:
1404: =back
1405:
1406: =cut
1407:
1408: #######################################################
1409: #######################################################
1410: sub StudentTriesOnSequence {
1411: my ($student,$studentdata,$seq,$links) = @_;
1412: $links = 'no' if (! defined($links));
1413: my $Str = '';
1414: my ($sum,$max) = (0,0);
1415: my $performance_length = 0;
1416: my @TriesData = ();
1417: my $tries;
1418: foreach my $resource (@{$seq->{'contents'}}) {
1419: next if ($resource->{'type'} ne 'assessment');
1420: my $resource_data = $studentdata->{$resource->{'symb'}};
1421: my $value = '';
1422: foreach my $partnum (@{$resource->{'parts'}}) {
1423: $tries = undef;
1424: $max++;
1425: $performance_length++;
1426: my $symbol = ' '; # default to space
1427: #
1428: if (exists($resource_data->{'resource.'.$partnum.'.solved'})) {
1429: my $status = $resource_data->{'resource.'.$partnum.'.solved'};
1430: if ($status eq 'correct_by_override') {
1431: $symbol = '+';
1432: $sum++;
1433: } elsif ($status eq 'incorrect_by_override') {
1434: $symbol = '-';
1435: } elsif ($status eq 'ungraded_attempted') {
1436: $symbol = '#';
1437: } elsif ($status eq 'incorrect_attempted') {
1438: $symbol = '.';
1439: } elsif ($status eq 'excused') {
1440: $symbol = 'x';
1441: $max--;
1442: } elsif ($status eq 'correct_by_student' &&
1443: exists($resource_data->{'resource.'.$partnum.'.tries'})){
1444: $tries = $resource_data->{'resource.'.$partnum.'.tries'};
1445: if ($tries > 9) {
1446: $symbol = '*';
1447: } elsif ($tries > 0) {
1448: $symbol = $tries;
1449: } else {
1450: $symbol = ' ';
1451: }
1452: $sum++;
1453: } elsif (exists($resource_data->{'resource.'.
1454: $partnum.'.tries'})){
1455: $symbol = '.';
1456: } else {
1457: $symbol = ' ';
1458: }
1459: } else {
1460: # Unsolved. Did they try?
1461: if (exists($resource_data->{'resource.'.$partnum.'.tries'})){
1462: $symbol = '.';
1463: } else {
1464: $symbol = ' ';
1465: }
1466: }
1467: #
1468: if (! defined($tries)) {
1469: $tries = $symbol;
1470: }
1471: push (@TriesData,$tries);
1472: #
1473: if ( ($links eq 'yes' && $symbol ne ' ') ||
1474: ($links eq 'all')) {
1475: if (length($symbol) > 1) {
1476: &Apache::lonnet::logthis('length of symbol "'.$symbol.'" > 1');
1477: }
1478: $symbol = '<a href="/adm/grades'.
1479: '?symb='.&Apache::lonnet::escape($resource->{'symb'}).
1480: '&student='.$student->{'username'}.
1481: '&domain='.$student->{'domain'}.
1482: '&command=submission">'.$symbol.'</a>';
1483: }
1484: $value .= $symbol;
1485: }
1486: $Str .= $value;
1487: }
1488: if ($seq->{'randompick'}) {
1489: $max = $seq->{'randompick'};
1490: }
1491: return ($Str,$performance_length,$sum,$max,\@TriesData);
1492: }
1493:
1494: #######################################################
1495: #######################################################
1496:
1497: =pod
1498:
1499: =item &StudentPerformanceOnSequence()
1500:
1501: Inputs:
1502:
1503: =over 4
1504:
1505: =item $student
1506:
1507: =item $studentdata Hash ref to all student data
1508:
1509: =item $seq Hash ref, the sequence we are working on
1510:
1511: =item $links if defined we will output links to each resource.
1512:
1513: =back
1514:
1515: =cut
1516:
1517: #######################################################
1518: #######################################################
1519: sub StudentPerformanceOnSequence {
1520: my ($student,$studentdata,$seq,$links) = @_;
1521: $links = 'no' if (! defined($links));
1522: my $Str = ''; # final result string
1523: my ($score,$max) = (0,0);
1524: my $performance_length = 0;
1525: my $symbol;
1526: my @ScoreData = ();
1527: my $partscore;
1528: foreach my $resource (@{$seq->{'contents'}}) {
1529: next if ($resource->{'type'} ne 'assessment');
1530: my $resource_data = $studentdata->{$resource->{'symb'}};
1531: foreach my $part (@{$resource->{'parts'}}) {
1532: $partscore = undef;
1533: my $weight = &Apache::lonnet::EXT('resource.'.$part.'.weight',
1534: $resource->{'symb'},
1535: $student->{'domain'},
1536: $student->{'username'},
1537: $student->{'section'});
1538: if (!defined($weight) || ($weight eq '')) {
1539: $weight=1;
1540: }
1541: #
1542: $max += $weight; # see the 'excused' branch below...
1543: $performance_length++; # one character per part
1544: $symbol = ' '; # default to space
1545: #
1546: my $awarded = 0;
1547: if (exists($resource_data->{'resource.'.$part.'.awarded'})) {
1548: $awarded = $resource_data->{'resource.'.$part.'.awarded'};
1549: }
1550: #
1551: $partscore = $weight*$awarded;
1552: $score += $partscore;
1553: $symbol = $weight;
1554: if (length($symbol) > 1) {
1555: $symbol = '*';
1556: }
1557: if (exists($resource_data->{'resource.'.$part.'.solved'})) {
1558: my $status = $resource_data->{'resource.'.$part.'.solved'};
1559: if ($status eq 'excused') {
1560: $symbol = 'x';
1561: $max -= $weight; # Do not count 'excused' problems.
1562: }
1563: } else {
1564: # Unsolved. Did they try?
1565: if (exists($resource_data->{'resource.'.$part.'.tries'})){
1566: $symbol = '.';
1567: } else {
1568: $symbol = ' ';
1569: }
1570: }
1571: #
1572: if ( ($links eq 'yes' && $symbol ne ' ') || ($links eq 'all')) {
1573: $symbol = '<a href="/adm/grades'.
1574: '?symb='.&Apache::lonnet::escape($resource->{'symb'}).
1575: '&student='.$student->{'username'}.
1576: '&domain='.$student->{'domain'}.
1577: '&command=submission">'.$symbol.'</a>';
1578: }
1579: if (! defined($partscore)) {
1580: $partscore = $symbol;
1581: }
1582: push (@ScoreData,$partscore);
1583: }
1584: $Str .= $symbol;
1585: }
1586: return ($Str,$performance_length,$score,$max,\@ScoreData);
1587: }
1588:
1589: #######################################################
1590: #######################################################
1591:
1592: =pod
1593:
1594: =item &CreateLegend()
1595:
1596: This function returns a formatted string containing the legend for the
1597: chart. The legend describes the symbols used to represent grades for
1598: problems.
1599:
1600: =cut
1601:
1602: #######################################################
1603: #######################################################
1604: sub CreateLegend {
1605: my $Str = "<p><pre>".
1606: " 1 correct by student in 1 try\n".
1607: " 7 correct by student in 7 tries\n".
1608: " * correct by student in more than 9 tries\n".
1609: " + correct by hand grading or override\n".
1610: " - incorrect by override\n".
1611: " . incorrect attempted\n".
1612: " # ungraded attempted\n".
1613: " not attempted (blank field)\n".
1614: " x excused".
1615: "</pre><p>";
1616: return $Str;
1617: }
1618:
1619: #######################################################
1620: #######################################################
1621:
1622: =pod
1623:
1624: =back
1625:
1626: =cut
1627:
1628: #######################################################
1629: #######################################################
1630:
1631: 1;
1632:
1633: __END__
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