File:
[LON-CAPA] /
loncom /
interface /
statistics /
lonstudentassessment.pm
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1.74:
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Tue Nov 11 22:14:28 2003 UTC (20 years, 8 months ago) by
matthew
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Use the new &Apache::loncommon::store_course_settings and
restore_course_settings subroutines to remember form settings.
lonstatistics.pm was changed to not parse the student enrollment status
form elements before calling the sub-module routines which present the
interface. Now each of the sub-modules (statistics/*) must call
&Apache::lonstatistics::PrepareClasslist(); at the right time.
1: # The LearningOnline Network with CAPA
2: #
3: # $Id: lonstudentassessment.pm,v 1.74 2003/11/11 22:14:28 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,$c)=@_;
141: #
142: undef($Statistics);
143: undef($show_links);
144: undef($output_mode);
145: undef($data);
146: undef($base);
147: undef($datadescription);
148: undef($single_student_mode);
149: #
150: my %Saveable_Parameters = ('Status' => 'scalar',
151: 'chartoutputmode' => 'scalar',
152: 'chartoutputdata' => 'scalar',
153: 'Section' => 'array',
154: 'StudentData' => 'array',
155: 'Maps' => 'array');
156: &Apache::loncommon::store_course_settings('chart',\%Saveable_Parameters);
157: &Apache::loncommon::restore_course_settings('chart',\%Saveable_Parameters);
158: #
159: &Apache::lonstatistics::PrepareClasslist();
160: #
161: $single_student_mode = 0;
162: $single_student_mode = 1 if ($ENV{'form.SelectedStudent'});
163: if ($ENV{'form.selectstudent'}) {
164: &Apache::lonstatistics::DisplayClasslist($r);
165: return;
166: }
167: #
168: # Print out the HTML headers for the interface
169: # This also parses the output mode selector
170: # This step must *always* be done.
171: $r->print(&CreateInterface());
172: $r->print('<input type="hidden" name="notfirstrun" value="true" />');
173: $r->print('<input type="hidden" name="sort" value="'.
174: $ENV{'form.sort'}.'" />');
175: $r->rflush();
176: #
177: if (! exists($ENV{'form.notfirstrun'}) && ! $single_student_mode) {
178: return;
179: }
180: #
181: my $initialize = \&html_initialize;
182: my $output_student = \&html_outputstudent;
183: my $finish = \&html_finish;
184: #
185: if ($output_mode eq 'excel') {
186: $initialize = \&excel_initialize;
187: $output_student = \&excel_outputstudent;
188: $finish = \&excel_finish;
189: } elsif ($output_mode eq 'csv') {
190: $initialize = \&csv_initialize;
191: $output_student = \&csv_outputstudent;
192: $finish = \&csv_finish;
193: }
194: #
195: if($c->aborted()) { return ; }
196: #
197: # Determine which students we want to look at
198: my @Students;
199: if ($single_student_mode) {
200: @Students = (&Apache::lonstatistics::current_student());
201: $r->print(&next_and_previous_buttons());
202: $r->rflush();
203: } else {
204: @Students = @Apache::lonstatistics::Students;
205: }
206: #
207: # Perform generic initialization tasks
208: # Since we use lonnet::EXT to retrieve problem weights,
209: # to ensure current data we must clear the caches out.
210: # This makes sure that parameter changes at the student level
211: # are immediately reflected in the chart.
212: &Apache::lonnet::clear_EXT_cache_status();
213: #
214: # Clean out loncoursedata's package data, just to be safe.
215: &Apache::loncoursedata::clear_internal_caches();
216: #
217: # Call the initialize routine selected above
218: $initialize->($r);
219: foreach my $student (@Students) {
220: if($c->aborted()) {
221: $finish->($r);
222: return ;
223: }
224: # Call the output_student routine selected above
225: $output_student->($r,$student);
226: }
227: # Call the "finish" routine selected above
228: $finish->($r);
229: #
230: return;
231: }
232:
233: #######################################################
234: #######################################################
235: sub next_and_previous_buttons {
236: my $Str = '';
237: $Str .= '<input type="hidden" name="SelectedStudent" value="'.
238: $ENV{'form.SelectedStudent'}.'" />';
239: #
240: # Build the previous student link
241: my $previous = &Apache::lonstatistics::previous_student();
242: my $previousbutton = '';
243: if (defined($previous)) {
244: my $sname = $previous->{'username'}.':'.$previous->{'domain'};
245: $previousbutton .= '<input type="button" value="'.
246: 'Previous Student ('.
247: $previous->{'username'}.'@'.$previous->{'domain'}.')'.
248: '" onclick="document.Statistics.SelectedStudent.value='.
249: "'".$sname."'".';'.
250: 'document.Statistics.submit();" />';
251: } else {
252: $previousbutton .= '<input type="button" value="'.
253: 'Previous student (none)'.'" />';
254: }
255: #
256: # Build the next student link
257: my $next = &Apache::lonstatistics::next_student();
258: my $nextbutton = '';
259: if (defined($next)) {
260: my $sname = $next->{'username'}.':'.$next->{'domain'};
261: $nextbutton .= '<input type="button" value="'.
262: 'Next Student ('.
263: $next->{'username'}.'@'.$next->{'domain'}.')'.
264: '" onclick="document.Statistics.SelectedStudent.value='.
265: "'".$sname."'".';'.
266: 'document.Statistics.submit();" />';
267: } else {
268: $nextbutton .= '<input type="button" value="'.
269: 'Next student (none)'.'" />';
270: }
271: #
272: # Build the 'all students' button
273: my $all = '';
274: $all .= '<input type="button" value="All Students" '.
275: '" onclick="document.Statistics.SelectedStudent.value='.
276: "''".';'.'document.Statistics.submit();" />';
277: $Str .= $previousbutton.(' 'x5).$all.(' 'x5).$nextbutton;
278: return $Str;
279: }
280:
281: #######################################################
282: #######################################################
283:
284: sub get_student_fields_to_show {
285: my @to_show = @Apache::lonstatistics::SelectedStudentData;
286: foreach (@to_show) {
287: if ($_ eq 'all') {
288: @to_show = @Apache::lonstatistics::StudentDataOrder;
289: last;
290: }
291: }
292: return @to_show;
293: }
294:
295: #######################################################
296: #######################################################
297:
298: =pod
299:
300: =item &CreateInterface()
301:
302: Called by &BuildStudentAssessmentPage to create the top part of the
303: page which displays the chart.
304:
305: Inputs: None
306:
307: Returns: A string containing the HTML for the headers and top table for
308: the chart page.
309:
310: =cut
311:
312: #######################################################
313: #######################################################
314: sub CreateInterface {
315: my $Str = '';
316: # $Str .= &CreateLegend();
317: $Str .= '<table cellspacing="5">'."\n";
318: $Str .= '<tr>';
319: $Str .= '<td align="center"><b>Sections</b></td>';
320: $Str .= '<td align="center"><b>Student Data</b></td>';
321: $Str .= '<td align="center"><b>Enrollment Status</b></td>';
322: $Str .= '<td align="center"><b>Sequences and Folders</b></td>';
323: $Str .= '<td align="center"><b>Output Format</b>'.
324: &Apache::loncommon::help_open_topic("Chart_Output_Formats").
325: '</td>';
326: $Str .= '<td align="center"><b>Output Data</b>'.
327: &Apache::loncommon::help_open_topic("Chart_Output_Data").
328: '</td>';
329: $Str .= '</tr>'."\n";
330: #
331: $Str .= '<tr><td align="center">'."\n";
332: $Str .= &Apache::lonstatistics::SectionSelect('Section','multiple',5);
333: $Str .= '</td><td align="center">';
334: my $only_seq_with_assessments = sub {
335: my $s=shift;
336: if ($s->{'num_assess'} < 1) {
337: return 0;
338: } else {
339: return 1;
340: }
341: };
342: $Str .= &Apache::lonstatistics::StudentDataSelect('StudentData','multiple',
343: 5,undef);
344: $Str .= '</td><td>'."\n";
345: $Str .= &Apache::lonhtmlcommon::StatusOptions(undef,undef,5);
346: $Str .= '</td><td>'."\n";
347: $Str .= &Apache::lonstatistics::MapSelect('Maps','multiple,all',5,
348: $only_seq_with_assessments);
349: $Str .= '</td><td>'."\n";
350: $Str .= &CreateAndParseOutputSelector();
351: $Str .= '</td><td>'."\n";
352: $Str .= &CreateAndParseOutputDataSelector();
353: $Str .= '</td></tr>'."\n";
354: $Str .= '</table>'."\n";
355: $Str .= '<input type="submit" value="Generate Chart" />';
356: $Str .= ' 'x5;
357: $Str .= '<input type="submit" name="selectstudent" '.
358: 'value="Select One Student" />';
359: $Str .= ' 'x5;
360: $Str .= '<input type="submit" name="ClearCache" value="Clear Caches" />';
361: $Str .= ' 'x5;
362: $Str .= '<br />';
363: return $Str;
364: }
365:
366: #######################################################
367: #######################################################
368:
369: =pod
370:
371: =item &CreateAndParseOutputSelector()
372:
373: =cut
374:
375: #######################################################
376: #######################################################
377: my @OutputOptions =
378: ({ name => 'HTML, with links',
379: value => 'html, with links',
380: description => 'Output HTML with each symbol linked to the problem '.
381: 'which generated it.',
382: mode => 'html',
383: show_links => 'yes',
384: },
385: { name => 'HTML, with all links',
386: value => 'html, with all links',
387: description => 'Output HTML with each symbol linked to the problem '.
388: 'which generated it. '.
389: 'This includes links for unattempted problems.',
390: mode => 'html',
391: show_links => 'all',
392: },
393: { name => 'HTML, without links',
394: value => 'html, without links',
395: description => 'Output HTML. By not including links, the size of the'.
396: ' web page is greatly reduced. If your browser crashes on the '.
397: 'full display, try this.',
398: mode => 'html',
399: show_links => 'no',
400: },
401: { name => 'Excel',
402: value => 'excel',
403: description => 'Output an Excel file (compatable with Excel 95).',
404: mode => 'excel',
405: show_links => 'no',
406: },
407: { name => 'CSV',
408: value => 'csv',
409: description => 'Output a comma seperated values file suitable for '.
410: 'import into a spreadsheet program. Using this method as opposed '.
411: 'to Excel output allows you to organize your data before importing'.
412: ' it into a spreadsheet program.',
413: mode => 'csv',
414: show_links => 'no',
415: },
416: );
417:
418: sub OutputDescriptions {
419: my $Str = '';
420: $Str .= "<h2>Output Formats</h2>\n";
421: $Str .= "<dl>\n";
422: foreach my $outputmode (@OutputOptions) {
423: $Str .=" <dt>".$outputmode->{'name'}."</dt>\n";
424: $Str .=" <dd>".$outputmode->{'description'}."</dd>\n";
425: }
426: $Str .= "</dl>\n";
427: return $Str;
428: }
429:
430: sub CreateAndParseOutputSelector {
431: my $Str = '';
432: my $elementname = 'chartoutputmode';
433: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
434: [$elementname]);
435: #
436: # Format for output options is 'mode, restrictions';
437: my $selected = 'html, without links';
438: if (exists($ENV{'form.'.$elementname})) {
439: if (ref($ENV{'form.'.$elementname} eq 'ARRAY')) {
440: $selected = $ENV{'form.'.$elementname}->[0];
441: } else {
442: $selected = $ENV{'form.'.$elementname};
443: }
444: }
445: #
446: # Set package variables describing output mode
447: $show_links = 'no';
448: $output_mode = 'html';
449: foreach my $option (@OutputOptions) {
450: next if ($option->{'value'} ne $selected);
451: $output_mode = $option->{'mode'};
452: $show_links = $option->{'show_links'};
453: }
454:
455: #
456: # Build the form element
457: $Str = qq/<select size="5" name="$elementname">/;
458: foreach my $option (@OutputOptions) {
459: $Str .= "\n".' <option value="'.$option->{'value'}.'"';
460: $Str .= " selected " if ($option->{'value'} eq $selected);
461: $Str .= ">".$option->{'name'}."<\/option>";
462: }
463: $Str .= "\n</select>";
464: return $Str;
465: }
466:
467: ##
468: ## Data selector stuff
469: ##
470: my @OutputDataOptions =
471: (
472: { name => 'Scores Summary',
473: base => 'scores',
474: value => 'sum and total',
475: shortdesc => 'Total Score and Maximum Possible for each '.
476: 'Sequence or Folder',
477: longdesc => 'The score of each student as well as the '.
478: ' maximum possible on each Sequence or Folder.',
479: },
480: { name => 'Scores Per Problem',
481: base => 'scores',
482: value => 'scores',
483: shortdesc => 'Score on each Problem Part',
484: longdesc =>'The students score on each problem part, computed as'.
485: 'the part weight * part awarded',
486: },
487: # { name => 'Scores Sum',
488: # base => 'scores',
489: # value => 'sum only',
490: # shortdesc => 'Sum of Scores on each Problem Part',
491: # longdesc =>'The total of the scores of the student on each problem'.
492: # ' part in the sequences or folders selected.',
493: # },
494: # { name => 'Scores Summary Table Only',
495: # base => 'scores',
496: # value => 'final table scores',
497: # shortdesc => 'Summary of Scores',
498: # longdesc => 'The average score on each sequence or folder for the '.
499: # 'selected students.',
500: # },
501: { name =>'Tries',
502: base =>'tries',
503: value => 'tries',
504: shortdesc => 'Number of Tries before success on each Problem Part',
505: longdesc =>'The number of tries before success on each problem part.',
506: },
507: { name =>'Parts Correct',
508: base =>'tries',
509: value => 'parts correct total',
510: shortdesc => 'Number of Problem Parts completed successfully.',
511: longdesc => 'The Number of Problem Parts completed successfully and '.
512: 'the maximum possible for each student',
513: },
514: # { name =>'Parts Correct',
515: # base =>'tries',
516: # value => 'parts correct',
517: # shortdesc => 'Number of Problem Parts completed successfully.',
518: # longdesc => 'The Number of Problem Parts completed successfully'.
519: # ' on each sequence or folder.',
520: # },
521: # { name => 'Parts Summary Table Only',
522: # base => 'tries',
523: # value => 'final table parts',
524: # shortdesc => 'Summary of Parts Correct',
525: # longdesc => 'A summary table of the average number of problem parts '.
526: # 'students were able to get correct on each sequence.',
527: # },
528: );
529:
530: sub HTMLifyOutputDataDescriptions {
531: my $Str = '';
532: $Str .= "<h2>Output Data</h2>\n";
533: $Str .= "<dl>\n";
534: foreach my $option (@OutputDataOptions) {
535: $Str .= ' <dt>'.$option->{'name'}.'</dt>';
536: $Str .= '<dd>'.$option->{'longdesc'}.'</dd>'."\n";
537: }
538: $Str .= "</dl>\n";
539: return $Str;
540: }
541:
542: sub CreateAndParseOutputDataSelector {
543: my $Str = '';
544: my $elementname = 'chartoutputdata';
545: #
546: my $selected = 'scores';
547: if (exists($ENV{'form.'.$elementname})) {
548: if (ref($ENV{'form.'.$elementname} eq 'ARRAY')) {
549: $selected = $ENV{'form.'.$elementname}->[0];
550: } else {
551: $selected = $ENV{'form.'.$elementname};
552: }
553: }
554: #
555: $data = 'scores';
556: foreach my $option (@OutputDataOptions) {
557: if ($option->{'value'} eq $selected) {
558: $data = $option->{'value'};
559: $base = $option->{'base'};
560: $datadescription = $option->{'shortdesc'};
561: }
562: }
563: #
564: # Build the form element
565: $Str = qq/<select size="5" name="$elementname">/;
566: foreach my $option (@OutputDataOptions) {
567: $Str .= "\n".' <option value="'.$option->{'value'}.'"';
568: $Str .= " selected " if ($option->{'value'} eq $data);
569: $Str .= ">".$option->{'name'}."<\/option>";
570: }
571: $Str .= "\n</select>";
572: return $Str;
573:
574: }
575:
576: #######################################################
577: #######################################################
578:
579: =pod
580:
581: =head2 HTML output routines
582:
583: =item &html_initialize($r)
584:
585: Create labels for the columns of student data to show.
586:
587: =item &html_outputstudent($r,$student)
588:
589: Return a line of the chart for a student.
590:
591: =item &html_finish($r)
592:
593: =cut
594:
595: #######################################################
596: #######################################################
597: {
598: my $padding;
599: my $count;
600:
601: my $nodata_count; # The number of students for which there is no data
602: my %prog_state; # progress state used by loncommon PrgWin routines
603:
604: sub html_initialize {
605: my ($r) = @_;
606: #
607: $padding = ' 'x3;
608: $count = 0;
609: $nodata_count = 0;
610: undef(%prog_state);
611: #
612: $r->print("<h3>".$ENV{'course.'.$ENV{'request.course.id'}.'.description'}.
613: " ".localtime(time)."</h3>");
614:
615: if ($data !~ /^final table/) {
616: $r->print("<h3>".$datadescription."</h3>");
617: }
618: #
619: # Set up progress window for 'final table' display only
620: if ($data =~ /^final table/) {
621: my $studentcount = scalar(@Apache::lonstatistics::Students);
622: %prog_state=&Apache::lonhtmlcommon::Create_PrgWin
623: ($r,'Summary Table Status',
624: 'Summary Table Compilation Progress', $studentcount);
625: }
626: my $Str = "<pre>\n";
627: # First, the @StudentData fields need to be listed
628: my @to_show = &get_student_fields_to_show();
629: foreach my $field (@to_show) {
630: my $title=$Apache::lonstatistics::StudentData{$field}->{'title'};
631: my $base =$Apache::lonstatistics::StudentData{$field}->{'base_width'};
632: my $width=$Apache::lonstatistics::StudentData{$field}->{'width'};
633: $Str .= $title.' 'x($width-$base).$padding;
634: }
635: # Now the selected sequences need to be listed
636: foreach my $sequence (&Apache::lonstatistics::Sequences_with_Assess()){
637: my $title = $sequence->{'title'};
638: my $base = $sequence->{'base_width'};
639: my $width = $sequence->{'width'};
640: $Str .= $title.' 'x($width-$base).$padding;
641: }
642: $Str .= "total</pre>\n";
643: $Str .= "<pre>";
644: #
645: # Check for suppression of output
646: if ($data =~ /^final table/) {
647: $Str = '';
648: }
649: $r->print($Str);
650: $r->rflush();
651: return;
652: }
653:
654: sub html_outputstudent {
655: my ($r,$student) = @_;
656: my $Str = '';
657: #
658: if($count++ % 5 == 0 && $count > 0 && $data !~ /^final table/) {
659: $r->print("</pre><pre>");
660: }
661: # First, the @StudentData fields need to be listed
662: my @to_show = &get_student_fields_to_show();
663: foreach my $field (@to_show) {
664: my $title=$student->{$field};
665: my $base = length($title);
666: my $width=$Apache::lonstatistics::StudentData{$field}->{'width'};
667: $Str .= $title.' 'x($width-$base).$padding;
668: }
669: # Get ALL the students data
670: my %StudentsData;
671: my @tmp = &Apache::loncoursedata::get_current_state
672: ($student->{'username'},$student->{'domain'},undef,
673: $ENV{'request.course.id'});
674: if ((scalar @tmp > 0) && ($tmp[0] !~ /^error:/)) {
675: %StudentsData = @tmp;
676: }
677: if (scalar(@tmp) < 1) {
678: $nodata_count++;
679: return if ($data =~ /^final table/);
680: $Str .= '<font color="blue">No Course Data</font>'."\n";
681: $r->print($Str);
682: $r->rflush();
683: return;
684: }
685: #
686: # By sequence build up the data
687: my $studentstats;
688: my $PerformanceStr = '';
689: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
690: my ($performance,$performance_length,$score,$seq_max,$rawdata);
691: if ($base eq 'tries') {
692: ($performance,$performance_length,$score,$seq_max,$rawdata) =
693: &StudentTriesOnSequence($student,\%StudentsData,
694: $seq,$show_links);
695: } else {
696: ($performance,$performance_length,$score,$seq_max,$rawdata) =
697: &StudentPerformanceOnSequence($student,\%StudentsData,
698: $seq,$show_links);
699: }
700: my $ratio = sprintf("%3d",$score).'/'.sprintf("%3d",$seq_max);
701: #
702: if ($data eq 'sum and total' || $data eq 'parts correct total') {
703: $performance = $ratio;
704: $performance .= ' 'x($seq->{'width'}-length($ratio));
705: } elsif ($data eq 'sum only' || $data eq 'parts correct') {
706: $performance = $score;
707: $performance .= ' 'x($seq->{'width'}-length($score));
708: } else {
709: # Pad with extra spaces
710: $performance .= ' 'x($seq->{'width'}-$performance_length-
711: length($ratio)
712: ).$ratio;
713: }
714: #
715: $Str .= $performance.$padding;
716: #
717: $studentstats->{$seq->{'symb'}}->{'score'}= $score;
718: $studentstats->{$seq->{'symb'}}->{'max'} = $seq_max;
719: }
720: #
721: # Total it up and store the statistics info.
722: my ($score,$max) = (0,0);
723: while (my ($symb,$seq_stats) = each (%{$studentstats})) {
724: $Statistics->{$symb}->{'score'} += $seq_stats->{'score'};
725: if ($Statistics->{$symb}->{'max'} < $seq_stats->{'max'}) {
726: $Statistics->{$symb}->{'max'} = $seq_stats->{'max'};
727: }
728: $score += $seq_stats->{'score'};
729: $max += $seq_stats->{'max'};
730: }
731: $Str .= ' '.' 'x(length($max)-length($score)).$score.'/'.$max;
732: $Str .= " \n";
733: #
734: # Check for suppressed output and update the progress window if so...
735: if ($data =~ /^final table/) {
736: $Str = '';
737: &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,
738: 'last student');
739: }
740: #
741: $r->print($Str);
742: #
743: $r->rflush();
744: return;
745: }
746:
747: sub html_finish {
748: my ($r) = @_;
749: #
750: # Check for suppressed output and close the progress window if so
751: if ($data =~ /^final table/) {
752: &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
753: } else {
754: $r->print("</pre>\n");
755: }
756: if ($single_student_mode) {
757: $r->print(&SingleStudentTotal());
758: } else {
759: $r->print(&StudentAverageTotal());
760: }
761: $r->rflush();
762: return;
763: }
764:
765: sub StudentAverageTotal {
766: my $Str = "<h3>Summary Tables</h3>\n";
767: my $num_students = scalar(@Apache::lonstatistics::Students);
768: my $total_ave = 0;
769: my $total_max = 0;
770: $Str .= '<table border=2 cellspacing="1">'."\n";
771: $Str .= "<tr><th>Title</th><th>Average</th><th>Maximum</th></tr>\n";
772: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
773: my $ave;
774: if ($num_students > $nodata_count) {
775: $ave = int(100*($Statistics->{$seq->{'symb'}}->{'score'}/
776: ($num_students-$nodata_count)))/100;
777: } else {
778: $ave = 0;
779: }
780: $total_ave += $ave;
781: my $max = $Statistics->{$seq->{'symb'}}->{'max'};
782: $total_max += $max;
783: if ($ave == 0) {
784: $ave = "0.00";
785: }
786: $ave .= ' ';
787: $max .= ' ';
788: $Str .= '<tr><td>'.$seq->{'title'}.'</td>'.
789: '<td align="right">'.$ave.'</td>'.
790: '<td align="right">'.$max.'</td></tr>'."\n";
791: }
792: $total_ave = int(100*$total_ave)/100; # only two digit
793: $Str .= "</table>\n";
794: $Str .= '<table border=2 cellspacing="1">'."\n";
795: $Str .= '<tr><th>Number of Students</th><th>Average</th>'.
796: "<th>Maximum</th></tr>\n";
797: $Str .= '<tr><td>'.($num_students-$nodata_count).'</td>'.
798: '<td>'.$total_ave.'</td><td>'.$total_max.'</td>';
799: $Str .= "</table>\n";
800: return $Str;
801: }
802:
803: sub SingleStudentTotal {
804: my $student = &Apache::lonstatistics::current_student();
805: my $Str = "<h3>Summary table for ".$student->{'fullname'}." ".
806: $student->{'username'}.'@'.$student->{'domain'}."</h3>\n";
807: $Str .= '<table border=2 cellspacing="1">'."\n";
808: $Str .=
809: "<tr><th>Sequence or Folder</th><th>Score</th><th>Maximum</th></tr>\n";
810: my $total = 0;
811: my $total_max = 0;
812: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
813: my $value = $Statistics->{$seq->{'symb'}}->{'score'};
814: my $max = $Statistics->{$seq->{'symb'}}->{'max'};
815: $Str .= '<tr><td>'.$seq->{'title'}.'</td>'.
816: '<td align="right">'.$value.'</td>'.
817: '<td align="right">'.$max.'</td></tr>'."\n";
818: $total += $value;
819: $total_max +=$max;
820: }
821: $Str .= '<tr><td><b>Total</b></td>'.
822: '<td align="right">'.$total.'</td>'.
823: '<td align="right">'.$total_max."</td></tr>\n";
824: $Str .= "</table>\n";
825: return $Str;
826: }
827:
828: }
829:
830: #######################################################
831: #######################################################
832:
833: =pod
834:
835: =head2 EXCEL subroutines
836:
837: =item &excel_initialize($r)
838:
839: =item &excel_outputstudent($r,$student)
840:
841: =item &excel_finish($r)
842:
843: =cut
844:
845: #######################################################
846: #######################################################
847: {
848:
849: my $excel_sheet;
850: my $excel_workbook;
851:
852: my $filename;
853: my $rows_output;
854: my $cols_output;
855:
856: my %prog_state; # progress window state
857: my $request_aborted;
858:
859: sub excel_initialize {
860: my ($r) = @_;
861: #
862: undef ($excel_sheet);
863: undef ($excel_workbook);
864: undef ($filename);
865: undef ($rows_output);
866: undef ($cols_output);
867: undef (%prog_state);
868: undef ($request_aborted);
869: #
870: my $total_columns = scalar(&get_student_fields_to_show());
871: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
872: # Add 2 because we need a 'sum' and 'total' column for each
873: $total_columns += $seq->{'num_assess_parts'}+2;
874: }
875: if ($data eq 'tries' && $total_columns > 255) {
876: $r->print(<<END);
877: <h2>Unable to Complete Request</h2>
878: <p>
879: LON-CAPA is unable to produce your Excel spreadsheet because your selections
880: will result in more than 255 columns. Excel allows only 255 columns in a
881: spreadsheet.
882: </p><p>
883: You may consider reducing the number of <b>Sequences or Folders</b> you
884: have selected.
885: </p><p>
886: LON-CAPA can produce <b>CSV</b> files of this data or Excel files of the
887: summary data (<b>Parts Correct</b> or <b>Parts Correct & Totals</b>).
888: </p>
889: END
890: $request_aborted = 1;
891: }
892: if ($data eq 'scores' && $total_columns > 255) {
893: $r->print(<<END);
894: <h2>Unable to Complete Request</h2>
895: <p>
896: LON-CAPA is unable to produce your Excel spreadsheet because your selections
897: will result in more than 255 columns. Excel allows only 255 columns in a
898: spreadsheet.
899: </p><p>
900: You may consider reducing the number of <b>Sequences or Folders</b> you
901: have selected.
902: </p><p>
903: LON-CAPA can produce <b>CSV</b> files of this data or Excel files of the
904: summary data (<b>Scores Sum</b> or <b>Scores Sum & Totals</b>).
905: </p>
906: END
907: $request_aborted = 1;
908: }
909: if ($data =~ /^final table/) {
910: $r->print(<<END);
911: <h2>Unable to Complete Request</h2>
912: <p>
913: The <b>Summary Table (Scores)</b> option is not available for non-HTML output.
914: </p>
915: END
916: $request_aborted = 1;
917: }
918: return if ($request_aborted);
919: #
920: $filename = '/prtspool/'.
921: $ENV{'user.name'}.'_'.$ENV{'user.domain'}.'_'.
922: time.'_'.rand(1000000000).'.xls';
923: #
924: $excel_workbook = undef;
925: $excel_sheet = undef;
926: #
927: $rows_output = 0;
928: $cols_output = 0;
929: #
930: # Create sheet
931: $excel_workbook = Spreadsheet::WriteExcel->new('/home/httpd'.$filename);
932: #
933: # Check for errors
934: if (! defined($excel_workbook)) {
935: $r->log_error("Error creating excel spreadsheet $filename: $!");
936: $r->print("Problems creating new Excel file. ".
937: "This error has been logged. ".
938: "Please alert your LON-CAPA administrator");
939: return ;
940: }
941: #
942: # The excel spreadsheet stores temporary data in files, then put them
943: # together. If needed we should be able to disable this (memory only).
944: # The temporary directory must be specified before calling 'addworksheet'.
945: # File::Temp is used to determine the temporary directory.
946: $excel_workbook->set_tempdir($Apache::lonnet::tmpdir);
947: #
948: # Add a worksheet
949: my $sheetname = $ENV{'course.'.$ENV{'request.course.id'}.'.description'};
950: $sheetname = &Apache::loncommon::clean_excel_name($sheetname);
951: $excel_sheet = $excel_workbook->addworksheet($sheetname);
952: #
953: # Put the course description in the header
954: $excel_sheet->write($rows_output,$cols_output++,
955: $ENV{'course.'.$ENV{'request.course.id'}.'.description'});
956: $cols_output += 3;
957: #
958: # Put a description of the sections listed
959: my $sectionstring = '';
960: my @Sections = @Apache::lonstatistics::SelectedSections;
961: if (scalar(@Sections) > 1) {
962: if (scalar(@Sections) > 2) {
963: my $last = pop(@Sections);
964: $sectionstring = "Sections ".join(', ',@Sections).', and '.$last;
965: } else {
966: $sectionstring = "Sections ".join(' and ',@Sections);
967: }
968: } else {
969: if ($Sections[0] eq 'all') {
970: $sectionstring = "All sections";
971: } else {
972: $sectionstring = "Section ".$Sections[0];
973: }
974: }
975: $excel_sheet->write($rows_output,$cols_output++,$sectionstring);
976: $cols_output += scalar(@Sections);
977: #
978: # Put the date in there too
979: $excel_sheet->write($rows_output++,$cols_output++,
980: 'Compiled on '.localtime(time));
981: #
982: $cols_output = 0;
983: $excel_sheet->write($rows_output++,$cols_output++,$datadescription);
984: #
985: if ($data eq 'tries' || $data eq 'scores') {
986: $rows_output++;
987: }
988: #
989: # Add the student headers
990: $cols_output = 0;
991: foreach my $field (&get_student_fields_to_show()) {
992: $excel_sheet->write($rows_output,$cols_output++,$field);
993: }
994: my $row_offset = 0;
995: if ($data eq 'tries' || $data eq 'scores') {
996: $row_offset = -1;
997: }
998: #
999: # Add the remaining column headers
1000: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
1001: $excel_sheet->write($rows_output+$row_offset,
1002: $cols_output,$seq->{'title'});
1003: if ($data eq 'tries' || $data eq 'scores') {
1004: foreach my $res (@{$seq->{'contents'}}) {
1005: next if ($res->{'type'} ne 'assessment');
1006: if (scalar(@{$res->{'parts'}}) > 1) {
1007: foreach my $part (@{$res->{'parts'}}) {
1008: $excel_sheet->write($rows_output,
1009: $cols_output++,
1010: $res->{'title'}.' part '.$part);
1011: }
1012: } else {
1013: $excel_sheet->write($rows_output,
1014: $cols_output++,
1015: $res->{'title'});
1016: }
1017: }
1018: $excel_sheet->write($rows_output,$cols_output++,'score');
1019: $excel_sheet->write($rows_output,$cols_output++,'maximum');
1020: } elsif ($data eq 'sum and total' || $data eq 'parts correct total') {
1021: $excel_sheet->write($rows_output+1,$cols_output,'score');
1022: $excel_sheet->write($rows_output+1,$cols_output+1,'maximum');
1023: $cols_output += 2;
1024: } else {
1025: $cols_output++;
1026: }
1027: }
1028: #
1029: # Bookkeeping
1030: if ($data eq 'sum and total' || $data eq 'parts correct total') {
1031: $rows_output += 2;
1032: } else {
1033: $rows_output += 1;
1034: }
1035: #
1036: # Output a row for MAX
1037: $cols_output = 0;
1038: foreach my $field (&get_student_fields_to_show()) {
1039: if ($field eq 'username' || $field eq 'fullname' ||
1040: $field eq 'id') {
1041: $excel_sheet->write($rows_output,$cols_output++,'Maximum');
1042: } else {
1043: $excel_sheet->write($rows_output,$cols_output++,'');
1044: }
1045: }
1046: #
1047: # Add the maximums for each sequence or assessment
1048: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
1049: my $weight;
1050: my $max = 0;
1051: foreach my $resource (@{$seq->{'contents'}}) {
1052: next if ($resource->{'type'} ne 'assessment');
1053: foreach my $part (@{$resource->{'parts'}}) {
1054: $weight = 1;
1055: if ($base eq 'scores') {
1056: $weight = &Apache::lonnet::EXT
1057: ('resource.'.$part.'.weight',$resource->{'symb'},
1058: undef,undef,undef);
1059: if (!defined($weight) || ($weight eq '')) {
1060: $weight=1;
1061: }
1062: }
1063: if ($data eq 'scores') {
1064: $excel_sheet->write($rows_output,$cols_output++,$weight);
1065: } elsif ($data eq 'tries') {
1066: $excel_sheet->write($rows_output,$cols_output++,'');
1067: }
1068: $max += $weight;
1069: }
1070: }
1071: if (! ($data eq 'sum only' || $data eq 'parts correct')) {
1072: $excel_sheet->write($rows_output,$cols_output++,'');
1073: }
1074: $excel_sheet->write($rows_output,$cols_output++,$max);
1075: }
1076: $rows_output++;
1077: #
1078: # Let the user know what we are doing
1079: my $studentcount = scalar(@Apache::lonstatistics::Students);
1080: $r->print("<h1>Compiling Excel spreadsheet for ".
1081: $studentcount.' student');
1082: $r->print('s') if ($studentcount > 1);
1083: $r->print("</h1>\n");
1084: $r->rflush();
1085: #
1086: # Initialize progress window
1087: %prog_state=&Apache::lonhtmlcommon::Create_PrgWin
1088: ($r,'Excel File Compilation Status',
1089: 'Excel File Compilation Progress', $studentcount);
1090: #
1091: &Apache::lonhtmlcommon::Update_PrgWin($r,\%prog_state,
1092: 'Processing first student');
1093: return;
1094: }
1095:
1096: sub excel_outputstudent {
1097: my ($r,$student) = @_;
1098: return if ($request_aborted);
1099: return if (! defined($excel_sheet));
1100: $cols_output=0;
1101: #
1102: # Write out student data
1103: my @to_show = &get_student_fields_to_show();
1104: foreach my $field (@to_show) {
1105: $excel_sheet->write($rows_output,$cols_output++,$student->{$field});
1106: }
1107: #
1108: # Get student assessment data
1109: my %StudentsData;
1110: my @tmp = &Apache::loncoursedata::get_current_state($student->{'username'},
1111: $student->{'domain'},
1112: undef,
1113: $ENV{'request.course.id'});
1114: if ((scalar @tmp > 0) && ($tmp[0] !~ /^error:/)) {
1115: %StudentsData = @tmp;
1116: }
1117: #
1118: # Write out sequence scores and totals data
1119: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
1120: my ($performance,$performance_length,$score,$seq_max,$rawdata);
1121: if ($base eq 'tries') {
1122: ($performance,$performance_length,$score,$seq_max,$rawdata) =
1123: &StudentTriesOnSequence($student,\%StudentsData,
1124: $seq,'no');
1125: } else {
1126: ($performance,$performance_length,$score,$seq_max,$rawdata) =
1127: &StudentPerformanceOnSequence($student,\%StudentsData,
1128: $seq,'no');
1129: }
1130: if ($data eq 'tries' || $data eq 'scores') {
1131: foreach my $value (@$rawdata) {
1132: $excel_sheet->write($rows_output,$cols_output++,$value);
1133: }
1134: $excel_sheet->write($rows_output,$cols_output++,$score);
1135: $excel_sheet->write($rows_output,$cols_output++,$seq_max);
1136: } elsif ($data eq 'sum and total' || $data eq 'sum only' ||
1137: $data eq 'parts correct' || $data eq 'parts correct total') {
1138: $excel_sheet->write($rows_output,$cols_output++,$score);
1139: }
1140: if ($data eq 'sum and total' || $data eq 'parts correct total') {
1141: $excel_sheet->write($rows_output,$cols_output++,$seq_max);
1142: }
1143: }
1144: #
1145: # Bookkeeping
1146: $rows_output++;
1147: $cols_output=0;
1148: #
1149: # Update the progress window
1150: &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,'last student');
1151: return;
1152: }
1153:
1154: sub excel_finish {
1155: my ($r) = @_;
1156: return if ($request_aborted);
1157: return if (! defined($excel_sheet));
1158: #
1159: # Write the excel file
1160: $excel_workbook->close();
1161: my $c = $r->connection();
1162: #
1163: return if($c->aborted());
1164: #
1165: # Close the progress window
1166: &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
1167: #
1168: # Tell the user where to get their excel file
1169: $r->print('<br />'.
1170: '<a href="'.$filename.'">Your Excel spreadsheet.</a>'."\n");
1171: $r->rflush();
1172: return;
1173: }
1174:
1175: }
1176: #######################################################
1177: #######################################################
1178:
1179: =pod
1180:
1181: =head2 CSV output routines
1182:
1183: =item &csv_initialize($r)
1184:
1185: =item &csv_outputstudent($r,$student)
1186:
1187: =item &csv_finish($r)
1188:
1189: =cut
1190:
1191: #######################################################
1192: #######################################################
1193: {
1194:
1195: my $outputfile;
1196: my $filename;
1197: my $request_aborted;
1198: my %prog_state; # progress window state
1199:
1200: sub csv_initialize{
1201: my ($r) = @_;
1202: #
1203: # Clean up
1204: undef($outputfile);
1205: undef($filename);
1206: undef($request_aborted);
1207: undef(%prog_state);
1208: #
1209: # Deal with unimplemented requests
1210: $request_aborted = undef;
1211: if ($data =~ /final table/) {
1212: $r->print(<<END);
1213: <h2>Unable to Complete Request</h2>
1214: <p>
1215: The <b>Summary Table (Scores)</b> option is not available for non-HTML output.
1216: </p>
1217: END
1218: $request_aborted = 1;
1219: }
1220: return if ($request_aborted);
1221:
1222: #
1223: # Open a file
1224: $filename = '/prtspool/'.
1225: $ENV{'user.name'}.'_'.$ENV{'user.domain'}.'_'.
1226: time.'_'.rand(1000000000).'.csv';
1227: unless ($outputfile = Apache::File->new('>/home/httpd'.$filename)) {
1228: $r->log_error("Couldn't open $filename for output $!");
1229: $r->print("Problems occured in writing the csv file. ".
1230: "This error has been logged. ".
1231: "Please alert your LON-CAPA administrator.");
1232: $outputfile = undef;
1233: }
1234: #
1235: # Datestamp
1236: my $description = $ENV{'course.'.$ENV{'request.course.id'}.'.description'};
1237: print $outputfile '"'.&Apache::loncommon::csv_translate($description).'",'.
1238: '"'.&Apache::loncommon::csv_translate(scalar(localtime(time))).'"'.
1239: "\n";
1240: #
1241: # Print out the headings
1242: my $Str = '';
1243: my $Str2 = undef;
1244: foreach my $field (&get_student_fields_to_show()) {
1245: if ($data eq 'sum only') {
1246: $Str .= '"'.&Apache::loncommon::csv_translate($field).'",';
1247: } elsif ($data eq 'sum and total' || $data eq 'parts correct total') {
1248: $Str .= '"",'; # first row empty on the student fields
1249: $Str2 .= '"'.&Apache::loncommon::csv_translate($field).'",';
1250: } elsif ($data eq 'scores' || $data eq 'tries' ||
1251: $data eq 'parts correct') {
1252: $Str .= '"",';
1253: $Str2 .= '"'.&Apache::loncommon::csv_translate($field).'",';
1254: }
1255: }
1256: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
1257: if ($data eq 'sum only' || $data eq 'parts correct') {
1258: $Str .= '"'.&Apache::loncommon::csv_translate($seq->{'title'}).
1259: '",';
1260: } elsif ($data eq 'sum and total' || $data eq 'parts correct total') {
1261: $Str .= '"'.&Apache::loncommon::csv_translate($seq->{'title'}).
1262: '","",';
1263: $Str2 .= '"score","total possible",';
1264: } elsif ($data eq 'scores' || $data eq 'tries') {
1265: $Str .= '"'.&Apache::loncommon::csv_translate($seq->{'title'}).
1266: '",';
1267: $Str .= '"",'x($seq->{'num_assess_parts'}-1+2);
1268: foreach my $res (@{$seq->{'contents'}}) {
1269: next if ($res->{'type'} ne 'assessment');
1270: foreach my $part (@{$res->{'parts'}}) {
1271: $Str2 .= '"'.&Apache::loncommon::csv_translate($res->{'title'}.', Part '.$part).'",';
1272: }
1273: }
1274: $Str2 .= '"score","total possible",';
1275: }
1276: }
1277: chop($Str);
1278: $Str .= "\n";
1279: print $outputfile $Str;
1280: if (defined($Str2)) {
1281: chop($Str2);
1282: $Str2 .= "\n";
1283: print $outputfile $Str2;
1284: }
1285: #
1286: # Initialize progress window
1287: my $studentcount = scalar(@Apache::lonstatistics::Students);
1288: %prog_state=&Apache::lonhtmlcommon::Create_PrgWin
1289: ($r,'CSV File Compilation Status',
1290: 'CSV File Compilation Progress', $studentcount);
1291: return;
1292: }
1293:
1294: sub csv_outputstudent {
1295: my ($r,$student) = @_;
1296: return if ($request_aborted);
1297: return if (! defined($outputfile));
1298: my $Str = '';
1299: #
1300: # Output student fields
1301: my @to_show = &get_student_fields_to_show();
1302: foreach my $field (@to_show) {
1303: $Str .= '"'.&Apache::loncommon::csv_translate($student->{$field}).'",';
1304: }
1305: #
1306: # Get student assessment data
1307: my %StudentsData;
1308: my @tmp = &Apache::loncoursedata::get_current_state($student->{'username'},
1309: $student->{'domain'},
1310: undef,
1311: $ENV{'request.course.id'});
1312: if ((scalar @tmp > 0) && ($tmp[0] !~ /^error:/)) {
1313: %StudentsData = @tmp;
1314: }
1315: #
1316: # Output performance data
1317: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
1318: my ($performance,$performance_length,$score,$seq_max,$rawdata);
1319: if ($base eq 'tries') {
1320: ($performance,$performance_length,$score,$seq_max,$rawdata) =
1321: &StudentTriesOnSequence($student,\%StudentsData,
1322: $seq,'no');
1323: } else {
1324: ($performance,$performance_length,$score,$seq_max,$rawdata) =
1325: &StudentPerformanceOnSequence($student,\%StudentsData,
1326: $seq,'no');
1327: }
1328: if ($data eq 'sum only' || $data eq 'parts correct') {
1329: $Str .= '"'.$score.'",';
1330: } elsif ($data eq 'sum and total' || $data eq 'parts correct total') {
1331: $Str .= '"'.$score.'","'.$seq_max.'",';
1332: } elsif ($data eq 'scores' || $data eq 'tries') {
1333: $Str .= '"'.join('","',(@$rawdata,$score,$seq_max)).'",';
1334: }
1335: }
1336: chop($Str);
1337: $Str .= "\n";
1338: print $outputfile $Str;
1339: #
1340: # Update the progress window
1341: &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,'last student');
1342: return;
1343: }
1344:
1345: sub csv_finish {
1346: my ($r) = @_;
1347: return if ($request_aborted);
1348: return if (! defined($outputfile));
1349: close($outputfile);
1350: #
1351: my $c = $r->connection();
1352: return if ($c->aborted());
1353: #
1354: # Close the progress window
1355: &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
1356: #
1357: # Tell the user where to get their csv file
1358: $r->print('<br />'.
1359: '<a href="'.$filename.'">Your csv file.</a>'."\n");
1360: $r->rflush();
1361: return;
1362:
1363: }
1364:
1365: }
1366:
1367: #######################################################
1368: #######################################################
1369:
1370: =pod
1371:
1372: =item &StudentTriesOnSequence()
1373:
1374: Inputs:
1375:
1376: =over 4
1377:
1378: =item $student
1379:
1380: =item $studentdata Hash ref to all student data
1381:
1382: =item $seq Hash ref, the sequence we are working on
1383:
1384: =item $links if defined we will output links to each resource.
1385:
1386: =back
1387:
1388: =cut
1389:
1390: #######################################################
1391: #######################################################
1392: sub StudentTriesOnSequence {
1393: my ($student,$studentdata,$seq,$links) = @_;
1394: $links = 'no' if (! defined($links));
1395: my $Str = '';
1396: my ($sum,$max) = (0,0);
1397: my $performance_length = 0;
1398: my @TriesData = ();
1399: my $tries;
1400: foreach my $resource (@{$seq->{'contents'}}) {
1401: next if ($resource->{'type'} ne 'assessment');
1402: my $resource_data = $studentdata->{$resource->{'symb'}};
1403: my $value = '';
1404: foreach my $partnum (@{$resource->{'parts'}}) {
1405: $tries = undef;
1406: $max++;
1407: $performance_length++;
1408: my $symbol = ' '; # default to space
1409: #
1410: if (exists($resource_data->{'resource.'.$partnum.'.solved'})) {
1411: my $status = $resource_data->{'resource.'.$partnum.'.solved'};
1412: if ($status eq 'correct_by_override') {
1413: $symbol = '+';
1414: $sum++;
1415: } elsif ($status eq 'incorrect_by_override') {
1416: $symbol = '-';
1417: } elsif ($status eq 'ungraded_attempted') {
1418: $symbol = '#';
1419: } elsif ($status eq 'incorrect_attempted') {
1420: $symbol = '.';
1421: } elsif ($status eq 'excused') {
1422: $symbol = 'x';
1423: $max--;
1424: } elsif (($status eq 'correct_by_scantron' ||
1425: $status eq 'correct_by_student') &&
1426: exists($resource_data->{'resource.'.$partnum.'.tries'})){
1427: $tries = $resource_data->{'resource.'.$partnum.'.tries'};
1428: if ($tries > 9) {
1429: $symbol = '*';
1430: } elsif ($tries > 0) {
1431: $symbol = $tries;
1432: } else {
1433: $symbol = ' ';
1434: }
1435: $sum++;
1436: } elsif (exists($resource_data->{'resource.'.
1437: $partnum.'.tries'})){
1438: $symbol = '.';
1439: } else {
1440: $symbol = ' ';
1441: }
1442: } else {
1443: # Unsolved. Did they try?
1444: if (exists($resource_data->{'resource.'.$partnum.'.tries'})){
1445: $symbol = '.';
1446: } else {
1447: $symbol = ' ';
1448: }
1449: }
1450: #
1451: if (! defined($tries)) {
1452: $tries = $symbol;
1453: }
1454: push (@TriesData,$tries);
1455: #
1456: if ( ($links eq 'yes' && $symbol ne ' ') ||
1457: ($links eq 'all')) {
1458: if (length($symbol) > 1) {
1459: &Apache::lonnet::logthis('length of symbol "'.$symbol.'" > 1');
1460: }
1461: $symbol = '<a href="/adm/grades'.
1462: '?symb='.&Apache::lonnet::escape($resource->{'symb'}).
1463: '&student='.$student->{'username'}.
1464: '&userdom='.$student->{'domain'}.
1465: '&command=submission">'.$symbol.'</a>';
1466: }
1467: $value .= $symbol;
1468: }
1469: $Str .= $value;
1470: }
1471: if ($seq->{'randompick'}) {
1472: $max = $seq->{'randompick'};
1473: }
1474: return ($Str,$performance_length,$sum,$max,\@TriesData);
1475: }
1476:
1477: #######################################################
1478: #######################################################
1479:
1480: =pod
1481:
1482: =item &StudentPerformanceOnSequence()
1483:
1484: Inputs:
1485:
1486: =over 4
1487:
1488: =item $student
1489:
1490: =item $studentdata Hash ref to all student data
1491:
1492: =item $seq Hash ref, the sequence we are working on
1493:
1494: =item $links if defined we will output links to each resource.
1495:
1496: =back
1497:
1498: =cut
1499:
1500: #######################################################
1501: #######################################################
1502: sub StudentPerformanceOnSequence {
1503: my ($student,$studentdata,$seq,$links) = @_;
1504: $links = 'no' if (! defined($links));
1505: my $Str = ''; # final result string
1506: my ($score,$max) = (0,0);
1507: my $performance_length = 0;
1508: my $symbol;
1509: my @ScoreData = ();
1510: my $partscore;
1511: foreach my $resource (@{$seq->{'contents'}}) {
1512: next if ($resource->{'type'} ne 'assessment');
1513: my $resource_data = $studentdata->{$resource->{'symb'}};
1514: foreach my $part (@{$resource->{'parts'}}) {
1515: $partscore = undef;
1516: my $weight = &Apache::lonnet::EXT('resource.'.$part.'.weight',
1517: $resource->{'symb'},
1518: $student->{'domain'},
1519: $student->{'username'},
1520: $student->{'section'});
1521: if (!defined($weight) || ($weight eq '')) {
1522: $weight=1;
1523: }
1524: #
1525: $max += $weight; # see the 'excused' branch below...
1526: $performance_length++; # one character per part
1527: $symbol = ' '; # default to space
1528: #
1529: my $awarded = 0;
1530: if (exists($resource_data->{'resource.'.$part.'.awarded'})) {
1531: $awarded = $resource_data->{'resource.'.$part.'.awarded'};
1532: $awarded = 0 if (! $awarded);
1533: }
1534: #
1535: $partscore = $weight*$awarded;
1536: $score += $partscore;
1537: $symbol = $partscore;
1538: if (abs($symbol - sprintf("%.0f",$symbol)) < 0.001) {
1539: $symbol = sprintf("%.0f",$symbol);
1540: }
1541: if (length($symbol) > 1) {
1542: $symbol = '*';
1543: }
1544: if (exists($resource_data->{'resource.'.$part.'.solved'})) {
1545: my $status = $resource_data->{'resource.'.$part.'.solved'};
1546: if ($status eq 'excused') {
1547: $symbol = 'x';
1548: $max -= $weight; # Do not count 'excused' problems.
1549: }
1550: } else {
1551: # Unsolved. Did they try?
1552: if (exists($resource_data->{'resource.'.$part.'.tries'})){
1553: $symbol = '.';
1554: } else {
1555: $symbol = ' ';
1556: }
1557: }
1558: #
1559: if (! defined($partscore)) {
1560: $partscore = $symbol;
1561: }
1562: push (@ScoreData,$partscore);
1563: #
1564: if ( ($links eq 'yes' && $symbol ne ' ') || ($links eq 'all')) {
1565: $symbol = '<a href="/adm/grades'.
1566: '?symb='.&Apache::lonnet::escape($resource->{'symb'}).
1567: '&student='.$student->{'username'}.
1568: '&userdom='.$student->{'domain'}.
1569: '&command=submission">'.$symbol.'</a>';
1570: }
1571: $Str .= $symbol;
1572: }
1573: }
1574: return ($Str,$performance_length,$score,$max,\@ScoreData);
1575: }
1576:
1577: #######################################################
1578: #######################################################
1579:
1580: =pod
1581:
1582: =item &CreateLegend()
1583:
1584: This function returns a formatted string containing the legend for the
1585: chart. The legend describes the symbols used to represent grades for
1586: problems.
1587:
1588: =cut
1589:
1590: #######################################################
1591: #######################################################
1592: sub CreateLegend {
1593: my $Str = "<p><pre>".
1594: " 1 correct by student in 1 try\n".
1595: " 7 correct by student in 7 tries\n".
1596: " * correct by student in more than 9 tries\n".
1597: " + correct by hand grading or override\n".
1598: " - incorrect by override\n".
1599: " . incorrect attempted\n".
1600: " # ungraded attempted\n".
1601: " not attempted (blank field)\n".
1602: " x excused".
1603: "</pre><p>";
1604: return $Str;
1605: }
1606:
1607: #######################################################
1608: #######################################################
1609:
1610: =pod
1611:
1612: =back
1613:
1614: =cut
1615:
1616: #######################################################
1617: #######################################################
1618:
1619: 1;
1620:
1621: __END__
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