1: # The LearningOnline Network with CAPA
2: #
3: # $Id: lonstudentassessment.pm,v 1.80 2004/01/27 16:04:27 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::loncommon();
56: use Apache::loncoursedata;
57: use Apache::lonnet; # for logging porpoises
58: use Apache::lonlocal;
59: use Spreadsheet::WriteExcel;
60: use Spreadsheet::WriteExcel::Utility();
61:
62: #######################################################
63: #######################################################
64: =pod
65:
66: =item Package Variables
67:
68: =over 4
69:
70: =item $Statistics Hash ref to store student data. Indexed by symb,
71: contains hashes with keys 'score' and 'max'.
72:
73: =cut
74:
75: #######################################################
76: #######################################################
77:
78: my $Statistics;
79:
80: #######################################################
81: #######################################################
82:
83: =pod
84:
85: =item $show_links 'yes' or 'no' for linking to student performance data
86:
87: =item $output_mode 'html', 'excel', or 'csv' for output mode
88:
89: =item $show 'all', 'totals', or 'scores' determines how much data is output
90:
91: =item $data determines what performance data is shown
92:
93: =item $datadescription A short description of the output data selected.
94:
95: =item $base 'tries' or 'scores' determines the base of the performance shown
96:
97: =item $single_student_mode evaluates to true if we are showing only one
98: student.
99:
100: =cut
101:
102: #######################################################
103: #######################################################
104: my $show_links;
105: my $output_mode;
106: my $data;
107: my $base;
108: my $datadescription;
109: my $single_student_mode;
110:
111: #######################################################
112: #######################################################
113: # End of package variable declarations
114:
115: =pod
116:
117: =back
118:
119: =cut
120:
121: #######################################################
122: #######################################################
123:
124: =pod
125:
126: =item &BuildStudentAssessmentPage()
127:
128: Inputs:
129:
130: =over 4
131:
132: =item $r Apache Request
133:
134: =item $c Apache Connection
135:
136: =back
137:
138: =cut
139:
140: #######################################################
141: #######################################################
142: sub BuildStudentAssessmentPage {
143: my ($r,$c)=@_;
144: #
145: undef($Statistics);
146: undef($show_links);
147: undef($output_mode);
148: undef($data);
149: undef($base);
150: undef($datadescription);
151: undef($single_student_mode);
152: #
153: my %Saveable_Parameters = ('Status' => 'scalar',
154: 'chartoutputmode' => 'scalar',
155: 'chartoutputdata' => 'scalar',
156: 'Section' => 'array',
157: 'StudentData' => 'array',
158: 'Maps' => 'array');
159: &Apache::loncommon::store_course_settings('chart',\%Saveable_Parameters);
160: &Apache::loncommon::restore_course_settings('chart',\%Saveable_Parameters);
161: #
162: &Apache::lonstatistics::PrepareClasslist();
163: #
164: $single_student_mode = 0;
165: $single_student_mode = 1 if ($ENV{'form.SelectedStudent'});
166: if ($ENV{'form.selectstudent'}) {
167: &Apache::lonstatistics::DisplayClasslist($r);
168: return;
169: }
170: #
171: # Print out the HTML headers for the interface
172: # This also parses the output mode selector
173: # This step must *always* be done.
174: $r->print(&CreateInterface());
175: $r->print('<input type="hidden" name="notfirstrun" value="true" />');
176: $r->print('<input type="hidden" name="sort" value="'.
177: $ENV{'form.sort'}.'" />');
178: $r->rflush();
179: #
180: if (! exists($ENV{'form.notfirstrun'}) && ! $single_student_mode) {
181: return;
182: }
183: #
184: my $initialize = \&html_initialize;
185: my $output_student = \&html_outputstudent;
186: my $finish = \&html_finish;
187: #
188: if ($output_mode eq 'excel') {
189: $initialize = \&excel_initialize;
190: $output_student = \&excel_outputstudent;
191: $finish = \&excel_finish;
192: } elsif ($output_mode eq 'csv') {
193: $initialize = \&csv_initialize;
194: $output_student = \&csv_outputstudent;
195: $finish = \&csv_finish;
196: }
197: #
198: if($c->aborted()) { return ; }
199: #
200: # Determine which students we want to look at
201: my @Students;
202: if ($single_student_mode) {
203: @Students = (&Apache::lonstatistics::current_student());
204: $r->print(&next_and_previous_buttons());
205: $r->rflush();
206: } else {
207: @Students = @Apache::lonstatistics::Students;
208: }
209: #
210: # Perform generic initialization tasks
211: # Since we use lonnet::EXT to retrieve problem weights,
212: # to ensure current data we must clear the caches out.
213: # This makes sure that parameter changes at the student level
214: # are immediately reflected in the chart.
215: &Apache::lonnet::clear_EXT_cache_status();
216: #
217: # Clean out loncoursedata's package data, just to be safe.
218: &Apache::loncoursedata::clear_internal_caches();
219: #
220: # Call the initialize routine selected above
221: $initialize->($r);
222: foreach my $student (@Students) {
223: if($c->aborted()) {
224: $finish->($r);
225: return ;
226: }
227: # Call the output_student routine selected above
228: $output_student->($r,$student);
229: }
230: # Call the "finish" routine selected above
231: $finish->($r);
232: #
233: return;
234: }
235:
236: #######################################################
237: #######################################################
238: sub next_and_previous_buttons {
239: my $Str = '';
240: $Str .= '<input type="hidden" name="SelectedStudent" value="'.
241: $ENV{'form.SelectedStudent'}.'" />';
242: #
243: # Build the previous student link
244: my $previous = &Apache::lonstatistics::previous_student();
245: my $previousbutton = '';
246: if (defined($previous)) {
247: my $sname = $previous->{'username'}.':'.$previous->{'domain'};
248: $previousbutton .= '<input type="button" value="'.
249: 'Previous Student ('.
250: $previous->{'username'}.'@'.$previous->{'domain'}.')'.
251: '" onclick="document.Statistics.SelectedStudent.value='.
252: "'".$sname."'".';'.
253: 'document.Statistics.submit();" />';
254: } else {
255: $previousbutton .= '<input type="button" value="'.
256: 'Previous student (none)'.'" />';
257: }
258: #
259: # Build the next student link
260: my $next = &Apache::lonstatistics::next_student();
261: my $nextbutton = '';
262: if (defined($next)) {
263: my $sname = $next->{'username'}.':'.$next->{'domain'};
264: $nextbutton .= '<input type="button" value="'.
265: 'Next Student ('.
266: $next->{'username'}.'@'.$next->{'domain'}.')'.
267: '" onclick="document.Statistics.SelectedStudent.value='.
268: "'".$sname."'".';'.
269: 'document.Statistics.submit();" />';
270: } else {
271: $nextbutton .= '<input type="button" value="'.
272: 'Next student (none)'.'" />';
273: }
274: #
275: # Build the 'all students' button
276: my $all = '';
277: $all .= '<input type="button" value="All Students" '.
278: '" onclick="document.Statistics.SelectedStudent.value='.
279: "''".';'.'document.Statistics.submit();" />';
280: $Str .= $previousbutton.(' 'x5).$all.(' 'x5).$nextbutton;
281: return $Str;
282: }
283:
284: #######################################################
285: #######################################################
286:
287: sub get_student_fields_to_show {
288: my @to_show = @Apache::lonstatistics::SelectedStudentData;
289: foreach (@to_show) {
290: if ($_ eq 'all') {
291: @to_show = @Apache::lonstatistics::StudentDataOrder;
292: last;
293: }
294: }
295: return @to_show;
296: }
297:
298: #######################################################
299: #######################################################
300:
301: =pod
302:
303: =item &CreateInterface()
304:
305: Called by &BuildStudentAssessmentPage to create the top part of the
306: page which displays the chart.
307:
308: Inputs: None
309:
310: Returns: A string containing the HTML for the headers and top table for
311: the chart page.
312:
313: =cut
314:
315: #######################################################
316: #######################################################
317: sub CreateInterface {
318: my $Str = '';
319: # $Str .= &CreateLegend();
320: $Str .= '<table cellspacing="5">'."\n";
321: $Str .= '<tr>';
322: $Str .= '<td align="center"><b>'.&mt('Sections').'</b></td>';
323: $Str .= '<td align="center"><b>'.&mt('Student Data</b>').'</td>';
324: $Str .= '<td align="center"><b>'.&mt('Enrollment Status').'</b></td>';
325: $Str .= '<td align="center"><b>'.&mt('Sequences and Folders').'</b></td>';
326: $Str .= '<td align="center"><b>'.&mt('Output Format').'</b>'.
327: &Apache::loncommon::help_open_topic("Chart_Output_Formats").
328: '</td>';
329: $Str .= '<td align="center"><b>'.&mt('Output Data').'</b>'.
330: &Apache::loncommon::help_open_topic("Chart_Output_Data").
331: '</td>';
332: $Str .= '</tr>'."\n";
333: #
334: $Str .= '<tr><td align="center">'."\n";
335: $Str .= &Apache::lonstatistics::SectionSelect('Section','multiple',5);
336: $Str .= '</td><td align="center">';
337: my $only_seq_with_assessments = sub {
338: my $s=shift;
339: if ($s->{'num_assess'} < 1) {
340: return 0;
341: } else {
342: return 1;
343: }
344: };
345: $Str .= &Apache::lonstatistics::StudentDataSelect('StudentData','multiple',
346: 5,undef);
347: $Str .= '</td><td>'."\n";
348: $Str .= &Apache::lonhtmlcommon::StatusOptions(undef,undef,5);
349: $Str .= '</td><td>'."\n";
350: $Str .= &Apache::lonstatistics::MapSelect('Maps','multiple,all',5,
351: $only_seq_with_assessments);
352: $Str .= '</td><td>'."\n";
353: $Str .= &CreateAndParseOutputSelector();
354: $Str .= '</td><td>'."\n";
355: $Str .= &CreateAndParseOutputDataSelector();
356: $Str .= '</td></tr>'."\n";
357: $Str .= '</table>'."\n";
358: $Str .= '<input type="submit" name="Generate Chart" value="'.
359: &mt('Generate Chart').'" />';
360: $Str .= ' 'x5;
361: $Str .= '<input type="submit" name="selectstudent" value="'.
362: &mt('Select One Student').'" />';
363: $Str .= ' 'x5;
364: $Str .= '<input type="submit" name="ClearCache" value="'.
365: &mt('Clear Caches').'" />';
366: $Str .= ' 'x5;
367: $Str .= '<br />';
368: return $Str;
369: }
370:
371: #######################################################
372: #######################################################
373:
374: =pod
375:
376: =item &CreateAndParseOutputSelector()
377:
378: =cut
379:
380: #######################################################
381: #######################################################
382: my @OutputOptions =
383: ({ name => 'HTML, with links',
384: value => 'html, with links',
385: description => 'Output HTML with each symbol linked to the problem '.
386: 'which generated it.',
387: mode => 'html',
388: show_links => 'yes',
389: },
390: { name => 'HTML, with all links',
391: value => 'html, with all links',
392: description => 'Output HTML with each symbol linked to the problem '.
393: 'which generated it. '.
394: 'This includes links for unattempted problems.',
395: mode => 'html',
396: show_links => 'all',
397: },
398: { name => 'HTML, without links',
399: value => 'html, without links',
400: description => 'Output HTML. By not including links, the size of the'.
401: ' web page is greatly reduced. If your browser crashes on the '.
402: 'full display, try this.',
403: mode => 'html',
404: show_links => 'no',
405: },
406: { name => 'Excel',
407: value => 'excel',
408: description => 'Output an Excel file (compatable with Excel 95).',
409: mode => 'excel',
410: show_links => 'no',
411: },
412: { name => 'CSV',
413: value => 'csv',
414: description => 'Output a comma seperated values file suitable for '.
415: 'import into a spreadsheet program. Using this method as opposed '.
416: 'to Excel output allows you to organize your data before importing'.
417: ' it into a spreadsheet program.',
418: mode => 'csv',
419: show_links => 'no',
420: },
421: );
422:
423: sub OutputDescriptions {
424: my $Str = '';
425: $Str .= "<h2>Output Formats</h2>\n";
426: $Str .= "<dl>\n";
427: foreach my $outputmode (@OutputOptions) {
428: $Str .=" <dt>".$outputmode->{'name'}."</dt>\n";
429: $Str .=" <dd>".$outputmode->{'description'}."</dd>\n";
430: }
431: $Str .= "</dl>\n";
432: return $Str;
433: }
434:
435: sub CreateAndParseOutputSelector {
436: my $Str = '';
437: my $elementname = 'chartoutputmode';
438: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
439: [$elementname]);
440: #
441: # Format for output options is 'mode, restrictions';
442: my $selected = 'html, without links';
443: if (exists($ENV{'form.'.$elementname})) {
444: if (ref($ENV{'form.'.$elementname} eq 'ARRAY')) {
445: $selected = $ENV{'form.'.$elementname}->[0];
446: } else {
447: $selected = $ENV{'form.'.$elementname};
448: }
449: }
450: #
451: # Set package variables describing output mode
452: $show_links = 'no';
453: $output_mode = 'html';
454: foreach my $option (@OutputOptions) {
455: next if ($option->{'value'} ne $selected);
456: $output_mode = $option->{'mode'};
457: $show_links = $option->{'show_links'};
458: }
459:
460: #
461: # Build the form element
462: $Str = qq/<select size="5" name="$elementname">/;
463: foreach my $option (@OutputOptions) {
464: $Str .= "\n".' <option value="'.$option->{'value'}.'"';
465: $Str .= " selected " if ($option->{'value'} eq $selected);
466: $Str .= ">".&mt($option->{'name'})."<\/option>";
467: }
468: $Str .= "\n</select>";
469: return $Str;
470: }
471:
472: ##
473: ## Data selector stuff
474: ##
475: my @OutputDataOptions =
476: (
477: { name => 'Scores Summary',
478: base => 'scores',
479: value => 'sum and total',
480: shortdesc => 'Total Score and Maximum Possible for each '.
481: 'Sequence or Folder',
482: longdesc => 'The score of each student as well as the '.
483: ' maximum possible on each Sequence or Folder.',
484: },
485: { name => 'Scores Per Problem',
486: base => 'scores',
487: value => 'scores',
488: shortdesc => 'Score on each Problem Part',
489: longdesc =>'The students score on each problem part, computed as'.
490: 'the part weight * part awarded',
491: },
492: # { name => 'Scores Sum',
493: # base => 'scores',
494: # value => 'sum only',
495: # shortdesc => 'Sum of Scores on each Problem Part',
496: # longdesc =>'The total of the scores of the student on each problem'.
497: # ' part in the sequences or folders selected.',
498: # },
499: # { name => 'Scores Summary Table Only',
500: # base => 'scores',
501: # value => 'final table scores',
502: # shortdesc => 'Summary of Scores',
503: # longdesc => 'The average score on each sequence or folder for the '.
504: # 'selected students.',
505: # },
506: { name =>'Tries',
507: base =>'tries',
508: value => 'tries',
509: shortdesc => 'Number of Tries before success on each Problem Part',
510: longdesc =>'The number of tries before success on each problem part.',
511: },
512: { name =>'Parts Correct',
513: base =>'tries',
514: value => 'parts correct total',
515: shortdesc => 'Number of Problem Parts completed successfully.',
516: longdesc => 'The Number of Problem Parts completed successfully and '.
517: 'the maximum possible for each student',
518: },
519: # { name =>'Parts Correct',
520: # base =>'tries',
521: # value => 'parts correct',
522: # shortdesc => 'Number of Problem Parts completed successfully.',
523: # longdesc => 'The Number of Problem Parts completed successfully'.
524: # ' on each sequence or folder.',
525: # },
526: # { name => 'Parts Summary Table Only',
527: # base => 'tries',
528: # value => 'final table parts',
529: # shortdesc => 'Summary of Parts Correct',
530: # longdesc => 'A summary table of the average number of problem parts '.
531: # 'students were able to get correct on each sequence.',
532: # },
533: );
534:
535: sub HTMLifyOutputDataDescriptions {
536: my $Str = '';
537: $Str .= "<h2>Output Data</h2>\n";
538: $Str .= "<dl>\n";
539: foreach my $option (@OutputDataOptions) {
540: $Str .= ' <dt>'.$option->{'name'}.'</dt>';
541: $Str .= '<dd>'.$option->{'longdesc'}.'</dd>'."\n";
542: }
543: $Str .= "</dl>\n";
544: return $Str;
545: }
546:
547: sub CreateAndParseOutputDataSelector {
548: my $Str = '';
549: my $elementname = 'chartoutputdata';
550: #
551: my $selected = 'scores';
552: if (exists($ENV{'form.'.$elementname})) {
553: if (ref($ENV{'form.'.$elementname} eq 'ARRAY')) {
554: $selected = $ENV{'form.'.$elementname}->[0];
555: } else {
556: $selected = $ENV{'form.'.$elementname};
557: }
558: }
559: #
560: $data = 'scores';
561: foreach my $option (@OutputDataOptions) {
562: if ($option->{'value'} eq $selected) {
563: $data = $option->{'value'};
564: $base = $option->{'base'};
565: $datadescription = $option->{'shortdesc'};
566: }
567: }
568: #
569: # Build the form element
570: $Str = qq/<select size="5" name="$elementname">/;
571: foreach my $option (@OutputDataOptions) {
572: $Str .= "\n".' <option value="'.$option->{'value'}.'"';
573: $Str .= " selected " if ($option->{'value'} eq $data);
574: $Str .= ">".&mt($option->{'name'})."<\/option>";
575: }
576: $Str .= "\n</select>";
577: return $Str;
578:
579: }
580:
581: #######################################################
582: #######################################################
583:
584: =pod
585:
586: =head2 HTML output routines
587:
588: =item &html_initialize($r)
589:
590: Create labels for the columns of student data to show.
591:
592: =item &html_outputstudent($r,$student)
593:
594: Return a line of the chart for a student.
595:
596: =item &html_finish($r)
597:
598: =cut
599:
600: #######################################################
601: #######################################################
602: {
603: my $padding;
604: my $count;
605:
606: my $nodata_count; # The number of students for which there is no data
607: my %prog_state; # progress state used by loncommon PrgWin routines
608:
609: sub html_initialize {
610: my ($r) = @_;
611: #
612: $padding = ' 'x3;
613: $count = 0;
614: $nodata_count = 0;
615: undef(%prog_state);
616: #
617: $r->print("<h3>".$ENV{'course.'.$ENV{'request.course.id'}.'.description'}.
618: " ".localtime(time)."</h3>");
619:
620: if ($data !~ /^final table/) {
621: $r->print("<h3>".$datadescription."</h3>");
622: }
623: #
624: # Set up progress window for 'final table' display only
625: if ($data =~ /^final table/) {
626: my $studentcount = scalar(@Apache::lonstatistics::Students);
627: %prog_state=&Apache::lonhtmlcommon::Create_PrgWin
628: ($r,'Summary Table Status',
629: 'Summary Table Compilation Progress', $studentcount);
630: }
631: my $Str = "<pre>\n";
632: # First, the @StudentData fields need to be listed
633: my @to_show = &get_student_fields_to_show();
634: foreach my $field (@to_show) {
635: my $title=$Apache::lonstatistics::StudentData{$field}->{'title'};
636: my $base =$Apache::lonstatistics::StudentData{$field}->{'base_width'};
637: my $width=$Apache::lonstatistics::StudentData{$field}->{'width'};
638: $Str .= $title.' 'x($width-$base).$padding;
639: }
640: # Now the selected sequences need to be listed
641: foreach my $sequence (&Apache::lonstatistics::Sequences_with_Assess()){
642: my $title = $sequence->{'title'};
643: my $base = $sequence->{'base_width'};
644: my $width = $sequence->{'width'};
645: $Str .= $title.' 'x($width-$base).$padding;
646: }
647: $Str .= "total</pre>\n";
648: $Str .= "<pre>";
649: #
650: # Check for suppression of output
651: if ($data =~ /^final table/) {
652: $Str = '';
653: }
654: $r->print($Str);
655: $r->rflush();
656: return;
657: }
658:
659: sub html_outputstudent {
660: my ($r,$student) = @_;
661: my $Str = '';
662: #
663: if($count++ % 5 == 0 && $count > 0 && $data !~ /^final table/) {
664: $r->print("</pre><pre>");
665: }
666: # First, the @StudentData fields need to be listed
667: my @to_show = &get_student_fields_to_show();
668: foreach my $field (@to_show) {
669: my $title=$student->{$field};
670: my $base = length($title);
671: my $width=$Apache::lonstatistics::StudentData{$field}->{'width'};
672: $Str .= $title.' 'x($width-$base).$padding;
673: }
674: # Get ALL the students data
675: my %StudentsData;
676: my @tmp = &Apache::loncoursedata::get_current_state
677: ($student->{'username'},$student->{'domain'},undef,
678: $ENV{'request.course.id'});
679: if ((scalar @tmp > 0) && ($tmp[0] !~ /^error:/)) {
680: %StudentsData = @tmp;
681: }
682: if (scalar(@tmp) < 1) {
683: $nodata_count++;
684: return if ($data =~ /^final table/);
685: $Str .= '<font color="blue">No Course Data</font>'."\n";
686: $r->print($Str);
687: $r->rflush();
688: return;
689: }
690: #
691: # By sequence build up the data
692: my $studentstats;
693: my $PerformanceStr = '';
694: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
695: my ($performance,$performance_length,$score,$seq_max,$rawdata);
696: if ($base eq 'tries') {
697: ($performance,$performance_length,$score,$seq_max,$rawdata) =
698: &StudentTriesOnSequence($student,\%StudentsData,
699: $seq,$show_links);
700: } else {
701: ($performance,$performance_length,$score,$seq_max,$rawdata) =
702: &StudentPerformanceOnSequence($student,\%StudentsData,
703: $seq,$show_links);
704: }
705: my $ratio = sprintf("%3d",$score).'/'.sprintf("%3d",$seq_max);
706: #
707: if ($data eq 'sum and total' || $data eq 'parts correct total') {
708: $performance = $ratio;
709: $performance .= ' 'x($seq->{'width'}-length($ratio));
710: } elsif ($data eq 'sum only' || $data eq 'parts correct') {
711: $performance = $score;
712: $performance .= ' 'x($seq->{'width'}-length($score));
713: } else {
714: # Pad with extra spaces
715: $performance .= ' 'x($seq->{'width'}-$performance_length-
716: length($ratio)
717: ).$ratio;
718: }
719: #
720: $Str .= $performance.$padding;
721: #
722: $studentstats->{$seq->{'symb'}}->{'score'}= $score;
723: $studentstats->{$seq->{'symb'}}->{'max'} = $seq_max;
724: }
725: #
726: # Total it up and store the statistics info.
727: my ($score,$max) = (0,0);
728: while (my ($symb,$seq_stats) = each (%{$studentstats})) {
729: $Statistics->{$symb}->{'score'} += $seq_stats->{'score'};
730: if ($Statistics->{$symb}->{'max'} < $seq_stats->{'max'}) {
731: $Statistics->{$symb}->{'max'} = $seq_stats->{'max'};
732: }
733: $score += $seq_stats->{'score'};
734: $max += $seq_stats->{'max'};
735: }
736: $Str .= ' '.' 'x(length($max)-length($score)).$score.'/'.$max;
737: $Str .= " \n";
738: #
739: # Check for suppressed output and update the progress window if so...
740: if ($data =~ /^final table/) {
741: $Str = '';
742: &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,
743: 'last student');
744: }
745: #
746: $r->print($Str);
747: #
748: $r->rflush();
749: return;
750: }
751:
752: sub html_finish {
753: my ($r) = @_;
754: #
755: # Check for suppressed output and close the progress window if so
756: if ($data =~ /^final table/) {
757: &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
758: } else {
759: $r->print("</pre>\n");
760: }
761: if ($single_student_mode) {
762: $r->print(&SingleStudentTotal());
763: } else {
764: $r->print(&StudentAverageTotal());
765: }
766: $r->rflush();
767: return;
768: }
769:
770: sub StudentAverageTotal {
771: my $Str = "<h3>Summary Tables</h3>\n";
772: my $num_students = scalar(@Apache::lonstatistics::Students);
773: my $total_ave = 0;
774: my $total_max = 0;
775: $Str .= '<table border=2 cellspacing="1">'."\n";
776: $Str .= "<tr><th>Title</th><th>Average</th><th>Maximum</th></tr>\n";
777: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
778: my $ave;
779: if ($num_students > $nodata_count) {
780: $ave = int(100*($Statistics->{$seq->{'symb'}}->{'score'}/
781: ($num_students-$nodata_count)))/100;
782: } else {
783: $ave = 0;
784: }
785: $total_ave += $ave;
786: my $max = $Statistics->{$seq->{'symb'}}->{'max'};
787: $total_max += $max;
788: if ($ave == 0) {
789: $ave = "0.00";
790: }
791: $ave .= ' ';
792: $max .= ' ';
793: $Str .= '<tr><td>'.$seq->{'title'}.'</td>'.
794: '<td align="right">'.$ave.'</td>'.
795: '<td align="right">'.$max.'</td></tr>'."\n";
796: }
797: $total_ave = int(100*$total_ave)/100; # only two digit
798: $Str .= "</table>\n";
799: $Str .= '<table border=2 cellspacing="1">'."\n";
800: $Str .= '<tr><th>Number of Students</th><th>Average</th>'.
801: "<th>Maximum</th></tr>\n";
802: $Str .= '<tr><td>'.($num_students-$nodata_count).'</td>'.
803: '<td>'.$total_ave.'</td><td>'.$total_max.'</td>';
804: $Str .= "</table>\n";
805: return $Str;
806: }
807:
808: sub SingleStudentTotal {
809: my $student = &Apache::lonstatistics::current_student();
810: my $Str = "<h3>Summary table for ".$student->{'fullname'}." ".
811: $student->{'username'}.'@'.$student->{'domain'}."</h3>\n";
812: $Str .= '<table border=2 cellspacing="1">'."\n";
813: $Str .=
814: "<tr><th>Sequence or Folder</th><th>Score</th><th>Maximum</th></tr>\n";
815: my $total = 0;
816: my $total_max = 0;
817: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
818: my $value = $Statistics->{$seq->{'symb'}}->{'score'};
819: my $max = $Statistics->{$seq->{'symb'}}->{'max'};
820: $Str .= '<tr><td>'.$seq->{'title'}.'</td>'.
821: '<td align="right">'.$value.'</td>'.
822: '<td align="right">'.$max.'</td></tr>'."\n";
823: $total += $value;
824: $total_max +=$max;
825: }
826: $Str .= '<tr><td><b>Total</b></td>'.
827: '<td align="right">'.$total.'</td>'.
828: '<td align="right">'.$total_max."</td></tr>\n";
829: $Str .= "</table>\n";
830: return $Str;
831: }
832:
833: }
834:
835: #######################################################
836: #######################################################
837:
838: =pod
839:
840: =head2 EXCEL subroutines
841:
842: =item &excel_initialize($r)
843:
844: =item &excel_outputstudent($r,$student)
845:
846: =item &excel_finish($r)
847:
848: =cut
849:
850: #######################################################
851: #######################################################
852: {
853:
854: my $excel_sheet;
855: my $excel_workbook;
856:
857: my $filename;
858: my $rows_output;
859: my $cols_output;
860:
861: my %prog_state; # progress window state
862: my $request_aborted;
863:
864: my $total_formula;
865:
866: sub excel_initialize {
867: my ($r) = @_;
868: #
869: undef ($excel_sheet);
870: undef ($excel_workbook);
871: undef ($filename);
872: undef ($rows_output);
873: undef ($cols_output);
874: undef (%prog_state);
875: undef ($request_aborted);
876: undef ($total_formula);
877: #
878: my $total_columns = scalar(&get_student_fields_to_show());
879: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
880: # Add 2 because we need a 'sum' and 'total' column for each
881: $total_columns += $seq->{'num_assess_parts'}+2;
882: }
883: if ($data eq 'tries' && $total_columns > 255) {
884: $r->print(<<END);
885: <h2>Unable to Complete Request</h2>
886: <p>
887: LON-CAPA is unable to produce your Excel spreadsheet because your selections
888: will result in more than 255 columns. Excel allows only 255 columns in a
889: spreadsheet.
890: </p><p>
891: You may consider reducing the number of <b>Sequences or Folders</b> you
892: have selected.
893: </p><p>
894: LON-CAPA can produce <b>CSV</b> files of this data or Excel files of the
895: summary data (<b>Parts Correct</b> or <b>Parts Correct & Totals</b>).
896: </p>
897: END
898: $request_aborted = 1;
899: }
900: if ($data eq 'scores' && $total_columns > 255) {
901: $r->print(<<END);
902: <h2>Unable to Complete Request</h2>
903: <p>
904: LON-CAPA is unable to produce your Excel spreadsheet because your selections
905: will result in more than 255 columns. Excel allows only 255 columns in a
906: spreadsheet.
907: </p><p>
908: You may consider reducing the number of <b>Sequences or Folders</b> you
909: have selected.
910: </p><p>
911: LON-CAPA can produce <b>CSV</b> files of this data or Excel files of the
912: <b>Scores Summary</b> data.
913: </p>
914: END
915: $request_aborted = 1;
916: }
917: if ($data =~ /^final table/) {
918: $r->print(<<END);
919: <h2>Unable to Complete Request</h2>
920: <p>
921: The <b>Summary Table (Scores)</b> option is not available for non-HTML output.
922: </p>
923: END
924: $request_aborted = 1;
925: }
926: return if ($request_aborted);
927: #
928: $filename = '/prtspool/'.
929: $ENV{'user.name'}.'_'.$ENV{'user.domain'}.'_'.
930: time.'_'.rand(1000000000).'.xls';
931: #
932: $excel_workbook = undef;
933: $excel_sheet = undef;
934: #
935: $rows_output = 0;
936: $cols_output = 0;
937: #
938: # Create sheet
939: $excel_workbook = Spreadsheet::WriteExcel->new('/home/httpd'.$filename);
940: #
941: # Check for errors
942: if (! defined($excel_workbook)) {
943: $r->log_error("Error creating excel spreadsheet $filename: $!");
944: $r->print("Problems creating new Excel file. ".
945: "This error has been logged. ".
946: "Please alert your LON-CAPA administrator");
947: return ;
948: }
949: #
950: # The excel spreadsheet stores temporary data in files, then put them
951: # together. If needed we should be able to disable this (memory only).
952: # The temporary directory must be specified before calling 'addworksheet'.
953: # File::Temp is used to determine the temporary directory.
954: $excel_workbook->set_tempdir($Apache::lonnet::tmpdir);
955: #
956: # Add a worksheet
957: my $sheetname = $ENV{'course.'.$ENV{'request.course.id'}.'.description'};
958: $sheetname = &Apache::loncommon::clean_excel_name($sheetname);
959: $excel_sheet = $excel_workbook->addworksheet($sheetname);
960: #
961: # Put the course description in the header
962: $excel_sheet->write($rows_output,$cols_output++,
963: $ENV{'course.'.$ENV{'request.course.id'}.'.description'});
964: $cols_output += 3;
965: #
966: # Put a description of the sections listed
967: my $sectionstring = '';
968: my @Sections = @Apache::lonstatistics::SelectedSections;
969: if (scalar(@Sections) > 1) {
970: if (scalar(@Sections) > 2) {
971: my $last = pop(@Sections);
972: $sectionstring = "Sections ".join(', ',@Sections).', and '.$last;
973: } else {
974: $sectionstring = "Sections ".join(' and ',@Sections);
975: }
976: } else {
977: if ($Sections[0] eq 'all') {
978: $sectionstring = "All sections";
979: } else {
980: $sectionstring = "Section ".$Sections[0];
981: }
982: }
983: $excel_sheet->write($rows_output,$cols_output++,$sectionstring);
984: $cols_output += scalar(@Sections);
985: #
986: # Put the date in there too
987: $excel_sheet->write($rows_output++,$cols_output++,
988: 'Compiled on '.localtime(time));
989: #
990: $cols_output = 0;
991: $excel_sheet->write($rows_output++,$cols_output++,$datadescription);
992: #
993: if ($data eq 'tries' || $data eq 'scores') {
994: $rows_output++;
995: }
996: #
997: # Add the student headers
998: $cols_output = 0;
999: foreach my $field (&get_student_fields_to_show()) {
1000: $excel_sheet->write($rows_output,$cols_output++,$field);
1001: }
1002: my $row_offset = 0;
1003: if ($data eq 'tries' || $data eq 'scores') {
1004: $row_offset = -1;
1005: }
1006: #
1007: # Add the remaining column headers
1008: my $total_formula_string = '=0';
1009: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
1010: $excel_sheet->write($rows_output+$row_offset,
1011: $cols_output,$seq->{'title'});
1012: if ($data eq 'tries' || $data eq 'scores') {
1013: # Determine starting cell
1014: $seq->{'Excel:startcell'}=
1015: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1016: ($rows_output,$cols_output);
1017: $seq->{'Excel:startcol'}=$cols_output;
1018: # Put the names of the problems and parts into the sheet
1019: foreach my $res (@{$seq->{'contents'}}) {
1020: next if ($res->{'type'} ne 'assessment');
1021: if (scalar(@{$res->{'parts'}}) > 1) {
1022: foreach my $part (@{$res->{'parts'}}) {
1023: $excel_sheet->write($rows_output,
1024: $cols_output++,
1025: $res->{'title'}.' part '.$part);
1026: }
1027: } else {
1028: $excel_sheet->write($rows_output,
1029: $cols_output++,
1030: $res->{'title'});
1031: }
1032: }
1033: # Determine ending cell
1034: $seq->{'Excel:endcell'} =
1035: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1036: ($rows_output,$cols_output-1);
1037: $seq->{'Excel:endcol'}=$cols_output-1;
1038: # Create the formula for summing up this sequence
1039: $seq->{'Excel:sum'}= $excel_sheet->store_formula
1040: ('=SUM('.$seq->{'Excel:startcell'}.
1041: ':'.$seq->{'Excel:endcell'}.')');
1042: }
1043: # Determine cell the score is held in
1044: $seq->{'Excel:scorecell'} =
1045: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1046: ($rows_output,$cols_output);
1047: $seq->{'Excel:scorecol'}=$cols_output;
1048: if ($data eq 'parts correct total') {
1049: $excel_sheet->write($rows_output,$cols_output++,'parts correct');
1050: } else {
1051: $excel_sheet->write($rows_output,$cols_output++,'score');
1052: }
1053: #
1054: $total_formula_string.='+'.
1055: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1056: ($rows_output,$cols_output-1);
1057: $excel_sheet->write($rows_output,$cols_output++,'maximum');
1058: }
1059: $excel_sheet->write($rows_output,$cols_output++,'Grand Total');
1060: $total_formula = $excel_sheet->store_formula($total_formula_string);
1061: #
1062: # Bookkeeping
1063: if ($data eq 'sum and total' || $data eq 'parts correct total') {
1064: $rows_output += 2;
1065: } else {
1066: $rows_output += 1;
1067: }
1068: #
1069: # Output a row for MAX
1070: $cols_output = 0;
1071: foreach my $field (&get_student_fields_to_show()) {
1072: if ($field eq 'username' || $field eq 'fullname' ||
1073: $field eq 'id') {
1074: $excel_sheet->write($rows_output,$cols_output++,'Maximum');
1075: } else {
1076: $excel_sheet->write($rows_output,$cols_output++,'');
1077: }
1078: }
1079: #
1080: # Add the maximums for each sequence or assessment
1081: my %total_cell_translation;
1082: my $grand_total = 0;
1083: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
1084: $total_cell_translation{$seq->{'Excel:scorecell'}} =
1085: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1086: ($rows_output,$seq->{'Excel:scorecol'});
1087: my $weight;
1088: my $max = 0;
1089: foreach my $resource (@{$seq->{'contents'}}) {
1090: next if ($resource->{'type'} ne 'assessment');
1091: foreach my $part (@{$resource->{'parts'}}) {
1092: $weight = 1;
1093: if ($base eq 'scores') {
1094: $weight = &Apache::lonnet::EXT
1095: ('resource.'.$part.'.weight',$resource->{'symb'},
1096: undef,undef,undef);
1097: if (!defined($weight) || ($weight eq '')) {
1098: $weight=1;
1099: }
1100: }
1101: if ($data eq 'scores') {
1102: $excel_sheet->write($rows_output,$cols_output++,$weight);
1103: } elsif ($data eq 'tries') {
1104: $excel_sheet->write($rows_output,$cols_output++,'');
1105: }
1106: $max += $weight;
1107: }
1108: }
1109: if (! ($data eq 'sum only' || $data eq 'parts correct')) {
1110: $excel_sheet->write($rows_output,$cols_output++,'');
1111: }
1112: #
1113: if ($data eq 'tries' || $data eq 'scores') {
1114: my %replaceCells;
1115: $replaceCells{$seq->{'Excel:startcell'}} =
1116: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1117: ($rows_output,$seq->{'Excel:startcol'});
1118: $replaceCells{$seq->{'Excel:endcell'}} =
1119: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1120: ($rows_output,$seq->{'Excel:endcol'});
1121: $excel_sheet->repeat_formula($rows_output,$cols_output++,
1122: $seq->{'Excel:sum'},undef,
1123: %replaceCells);
1124: } else {
1125: $excel_sheet->write($rows_output,$cols_output++,
1126: $max);
1127: }
1128: $grand_total+=$max;
1129: }
1130: if ($data eq 'tries' || $data eq 'scores') {
1131: $excel_sheet->repeat_formula($rows_output,$cols_output++,
1132: $total_formula,undef,
1133: %total_cell_translation);
1134: } else {
1135: $excel_sheet->write($rows_output,$cols_output++,$grand_total);
1136: }
1137: $rows_output++;
1138: #
1139: # Let the user know what we are doing
1140: my $studentcount = scalar(@Apache::lonstatistics::Students);
1141: $r->print("<h1>Compiling Excel spreadsheet for ".
1142: $studentcount.' student');
1143: $r->print('s') if ($studentcount > 1);
1144: $r->print("</h1>\n");
1145: $r->rflush();
1146: #
1147: # Initialize progress window
1148: %prog_state=&Apache::lonhtmlcommon::Create_PrgWin
1149: ($r,'Excel File Compilation Status',
1150: 'Excel File Compilation Progress', $studentcount);
1151: #
1152: &Apache::lonhtmlcommon::Update_PrgWin($r,\%prog_state,
1153: 'Processing first student');
1154: return;
1155: }
1156:
1157: sub excel_outputstudent {
1158: my ($r,$student) = @_;
1159: return if ($request_aborted);
1160: return if (! defined($excel_sheet));
1161: $cols_output=0;
1162: #
1163: # Write out student data
1164: my @to_show = &get_student_fields_to_show();
1165: foreach my $field (@to_show) {
1166: $excel_sheet->write($rows_output,$cols_output++,$student->{$field});
1167: }
1168: #
1169: # Get student assessment data
1170: my %StudentsData;
1171: my @tmp = &Apache::loncoursedata::get_current_state($student->{'username'},
1172: $student->{'domain'},
1173: undef,
1174: $ENV{'request.course.id'});
1175: if ((scalar @tmp > 0) && ($tmp[0] !~ /^error:/)) {
1176: %StudentsData = @tmp;
1177: }
1178: #
1179: # Write out sequence scores and totals data
1180: my %total_cell_translation;
1181: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
1182: # Keep track of cells to translate in total cell
1183: $total_cell_translation{$seq->{'Excel:scorecell'}} =
1184: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1185: ($rows_output,$seq->{'Excel:scorecol'});
1186: #
1187: my ($performance,$performance_length,$score,$seq_max,$rawdata);
1188: if ($base eq 'tries') {
1189: ($performance,$performance_length,$score,$seq_max,$rawdata) =
1190: &StudentTriesOnSequence($student,\%StudentsData,
1191: $seq,'no');
1192: } else {
1193: ($performance,$performance_length,$score,$seq_max,$rawdata) =
1194: &StudentPerformanceOnSequence($student,\%StudentsData,
1195: $seq,'no');
1196: }
1197: if ($data eq 'tries' || $data eq 'scores') {
1198: foreach my $value (@$rawdata) {
1199: $excel_sheet->write($rows_output,$cols_output++,$value);
1200: }
1201: # Write a formula for the sum of this sequence
1202: my %replaceCells;
1203: $replaceCells{$seq->{'Excel:startcell'}} =
1204: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1205: ($rows_output,$seq->{'Excel:startcol'});
1206: $replaceCells{$seq->{'Excel:endcell'}} =
1207: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1208: ($rows_output,$seq->{'Excel:endcol'});
1209: # The undef is for the format
1210: $excel_sheet->repeat_formula($rows_output,$cols_output++,
1211: $seq->{'Excel:sum'},undef,
1212: %replaceCells);
1213: #
1214: $excel_sheet->write($rows_output,$cols_output++,$seq_max);
1215: } elsif ($data eq 'sum and total' || $data eq 'sum only' ||
1216: $data eq 'parts correct' || $data eq 'parts correct total') {
1217: $excel_sheet->write($rows_output,$cols_output++,$score);
1218: }
1219: if ($data eq 'sum and total' || $data eq 'parts correct total') {
1220: $excel_sheet->write($rows_output,$cols_output++,$seq_max);
1221: }
1222: }
1223: #
1224: $excel_sheet->repeat_formula($rows_output,$cols_output++,
1225: $total_formula,undef,
1226: %total_cell_translation);
1227:
1228: #
1229: # Bookkeeping
1230: $rows_output++;
1231: $cols_output=0;
1232: #
1233: # Update the progress window
1234: &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,'last student');
1235: return;
1236: }
1237:
1238: sub excel_finish {
1239: my ($r) = @_;
1240: return if ($request_aborted);
1241: return if (! defined($excel_sheet));
1242: #
1243: # Write the excel file
1244: $excel_workbook->close();
1245: my $c = $r->connection();
1246: #
1247: return if($c->aborted());
1248: #
1249: # Close the progress window
1250: &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
1251: #
1252: # Tell the user where to get their excel file
1253: $r->print('<br />'.
1254: '<a href="'.$filename.'">Your Excel spreadsheet.</a>'."\n");
1255: $r->rflush();
1256: return;
1257: }
1258:
1259: }
1260: #######################################################
1261: #######################################################
1262:
1263: =pod
1264:
1265: =head2 CSV output routines
1266:
1267: =item &csv_initialize($r)
1268:
1269: =item &csv_outputstudent($r,$student)
1270:
1271: =item &csv_finish($r)
1272:
1273: =cut
1274:
1275: #######################################################
1276: #######################################################
1277: {
1278:
1279: my $outputfile;
1280: my $filename;
1281: my $request_aborted;
1282: my %prog_state; # progress window state
1283:
1284: sub csv_initialize{
1285: my ($r) = @_;
1286: #
1287: # Clean up
1288: undef($outputfile);
1289: undef($filename);
1290: undef($request_aborted);
1291: undef(%prog_state);
1292: #
1293: # Deal with unimplemented requests
1294: $request_aborted = undef;
1295: if ($data =~ /final table/) {
1296: $r->print(<<END);
1297: <h2>Unable to Complete Request</h2>
1298: <p>
1299: The <b>Summary Table (Scores)</b> option is not available for non-HTML output.
1300: </p>
1301: END
1302: $request_aborted = 1;
1303: }
1304: return if ($request_aborted);
1305:
1306: #
1307: # Open a file
1308: $filename = '/prtspool/'.
1309: $ENV{'user.name'}.'_'.$ENV{'user.domain'}.'_'.
1310: time.'_'.rand(1000000000).'.csv';
1311: unless ($outputfile = Apache::File->new('>/home/httpd'.$filename)) {
1312: $r->log_error("Couldn't open $filename for output $!");
1313: $r->print("Problems occured in writing the csv file. ".
1314: "This error has been logged. ".
1315: "Please alert your LON-CAPA administrator.");
1316: $outputfile = undef;
1317: }
1318: #
1319: # Datestamp
1320: my $description = $ENV{'course.'.$ENV{'request.course.id'}.'.description'};
1321: print $outputfile '"'.&Apache::loncommon::csv_translate($description).'",'.
1322: '"'.&Apache::loncommon::csv_translate(scalar(localtime(time))).'"'.
1323: "\n";
1324: #
1325: # Print out the headings
1326: my $Str = '';
1327: my $Str2 = undef;
1328: foreach my $field (&get_student_fields_to_show()) {
1329: if ($data eq 'sum only') {
1330: $Str .= '"'.&Apache::loncommon::csv_translate($field).'",';
1331: } elsif ($data eq 'sum and total' || $data eq 'parts correct total') {
1332: $Str .= '"",'; # first row empty on the student fields
1333: $Str2 .= '"'.&Apache::loncommon::csv_translate($field).'",';
1334: } elsif ($data eq 'scores' || $data eq 'tries' ||
1335: $data eq 'parts correct') {
1336: $Str .= '"",';
1337: $Str2 .= '"'.&Apache::loncommon::csv_translate($field).'",';
1338: }
1339: }
1340: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
1341: if ($data eq 'sum only' || $data eq 'parts correct') {
1342: $Str .= '"'.&Apache::loncommon::csv_translate($seq->{'title'}).
1343: '",';
1344: } elsif ($data eq 'sum and total' || $data eq 'parts correct total') {
1345: $Str .= '"'.&Apache::loncommon::csv_translate($seq->{'title'}).
1346: '","",';
1347: $Str2 .= '"score","total possible",';
1348: } elsif ($data eq 'scores' || $data eq 'tries') {
1349: $Str .= '"'.&Apache::loncommon::csv_translate($seq->{'title'}).
1350: '",';
1351: $Str .= '"",'x($seq->{'num_assess_parts'}-1+2);
1352: foreach my $res (@{$seq->{'contents'}}) {
1353: next if ($res->{'type'} ne 'assessment');
1354: foreach my $part (@{$res->{'parts'}}) {
1355: $Str2 .= '"'.&Apache::loncommon::csv_translate($res->{'title'}.', Part '.$part).'",';
1356: }
1357: }
1358: $Str2 .= '"score","total possible",';
1359: }
1360: }
1361: chop($Str);
1362: $Str .= "\n";
1363: print $outputfile $Str;
1364: if (defined($Str2)) {
1365: chop($Str2);
1366: $Str2 .= "\n";
1367: print $outputfile $Str2;
1368: }
1369: #
1370: # Initialize progress window
1371: my $studentcount = scalar(@Apache::lonstatistics::Students);
1372: %prog_state=&Apache::lonhtmlcommon::Create_PrgWin
1373: ($r,'CSV File Compilation Status',
1374: 'CSV File Compilation Progress', $studentcount);
1375: return;
1376: }
1377:
1378: sub csv_outputstudent {
1379: my ($r,$student) = @_;
1380: return if ($request_aborted);
1381: return if (! defined($outputfile));
1382: my $Str = '';
1383: #
1384: # Output student fields
1385: my @to_show = &get_student_fields_to_show();
1386: foreach my $field (@to_show) {
1387: $Str .= '"'.&Apache::loncommon::csv_translate($student->{$field}).'",';
1388: }
1389: #
1390: # Get student assessment data
1391: my %StudentsData;
1392: my @tmp = &Apache::loncoursedata::get_current_state($student->{'username'},
1393: $student->{'domain'},
1394: undef,
1395: $ENV{'request.course.id'});
1396: if ((scalar @tmp > 0) && ($tmp[0] !~ /^error:/)) {
1397: %StudentsData = @tmp;
1398: }
1399: #
1400: # Output performance data
1401: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
1402: my ($performance,$performance_length,$score,$seq_max,$rawdata);
1403: if ($base eq 'tries') {
1404: ($performance,$performance_length,$score,$seq_max,$rawdata) =
1405: &StudentTriesOnSequence($student,\%StudentsData,
1406: $seq,'no');
1407: } else {
1408: ($performance,$performance_length,$score,$seq_max,$rawdata) =
1409: &StudentPerformanceOnSequence($student,\%StudentsData,
1410: $seq,'no');
1411: }
1412: if ($data eq 'sum only' || $data eq 'parts correct') {
1413: $Str .= '"'.$score.'",';
1414: } elsif ($data eq 'sum and total' || $data eq 'parts correct total') {
1415: $Str .= '"'.$score.'","'.$seq_max.'",';
1416: } elsif ($data eq 'scores' || $data eq 'tries') {
1417: $Str .= '"'.join('","',(@$rawdata,$score,$seq_max)).'",';
1418: }
1419: }
1420: chop($Str);
1421: $Str .= "\n";
1422: print $outputfile $Str;
1423: #
1424: # Update the progress window
1425: &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,'last student');
1426: return;
1427: }
1428:
1429: sub csv_finish {
1430: my ($r) = @_;
1431: return if ($request_aborted);
1432: return if (! defined($outputfile));
1433: close($outputfile);
1434: #
1435: my $c = $r->connection();
1436: return if ($c->aborted());
1437: #
1438: # Close the progress window
1439: &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
1440: #
1441: # Tell the user where to get their csv file
1442: $r->print('<br />'.
1443: '<a href="'.$filename.'">Your csv file.</a>'."\n");
1444: $r->rflush();
1445: return;
1446:
1447: }
1448:
1449: }
1450:
1451: #######################################################
1452: #######################################################
1453:
1454: =pod
1455:
1456: =item &StudentTriesOnSequence()
1457:
1458: Inputs:
1459:
1460: =over 4
1461:
1462: =item $student
1463:
1464: =item $studentdata Hash ref to all student data
1465:
1466: =item $seq Hash ref, the sequence we are working on
1467:
1468: =item $links if defined we will output links to each resource.
1469:
1470: =back
1471:
1472: =cut
1473:
1474: #######################################################
1475: #######################################################
1476: sub StudentTriesOnSequence {
1477: my ($student,$studentdata,$seq,$links) = @_;
1478: $links = 'no' if (! defined($links));
1479: my $Str = '';
1480: my ($sum,$max) = (0,0);
1481: my $performance_length = 0;
1482: my @TriesData = ();
1483: my $tries;
1484: foreach my $resource (@{$seq->{'contents'}}) {
1485: next if ($resource->{'type'} ne 'assessment');
1486: my $resource_data = $studentdata->{$resource->{'symb'}};
1487: my $value = '';
1488: foreach my $partnum (@{$resource->{'parts'}}) {
1489: $tries = undef;
1490: $max++;
1491: $performance_length++;
1492: my $symbol = ' '; # default to space
1493: #
1494: my $awarded = 0;
1495: if (exists($resource_data->{'resource.'.$partnum.'.awarded'})) {
1496: $awarded = $resource_data->{'resource.'.$partnum.'.awarded'};
1497: $awarded = 0 if (! $awarded);
1498: }
1499: #
1500: my $status = '';
1501: if (exists($resource_data->{'resource.'.$partnum.'.solved'})) {
1502: $status = $resource_data->{'resource.'.$partnum.'.solved'};
1503: }
1504: #
1505: my $tries = 0;
1506: if(exists($resource_data->{'resource.'.$partnum.'.tries'})) {
1507: $tries = $resource_data->{'resource.'.$partnum.'.tries'};
1508: }
1509: #
1510: if ($awarded > 0) {
1511: # The student has gotten the problem correct to some degree
1512: if ($status eq 'excused') {
1513: $symbol = 'x';
1514: $max--;
1515: } elsif ($status eq 'correct_by_override') {
1516: $symbol = '+';
1517: $sum++;
1518: } elsif ($tries > 0) {
1519: if ($tries > 9) {
1520: $symbol = '*';
1521: } else {
1522: $symbol = $tries;
1523: }
1524: $sum++;
1525: } else {
1526: $symbol = '+';
1527: $sum++;
1528: }
1529: } else {
1530: # The student has the problem incorrect or it is ungraded
1531: if ($status eq 'excused') {
1532: $symbol = 'x';
1533: $max--;
1534: } elsif ($status eq 'incorrect_by_override') {
1535: $symbol = '-';
1536: } elsif ($status eq 'ungraded_attempted') {
1537: $symbol = '#';
1538: } elsif ($status eq 'incorrect_attempted' ||
1539: $tries > 0) {
1540: $symbol = '.';
1541: } else {
1542: # Problem is wrong and has not been attempted.
1543: $symbol=' ';
1544: }
1545: }
1546: #
1547: if (! defined($tries)) {
1548: $tries = $symbol;
1549: }
1550: push (@TriesData,$tries);
1551: #
1552: if ( ($links eq 'yes' && $symbol ne ' ') ||
1553: ($links eq 'all')) {
1554: if (length($symbol) > 1) {
1555: &Apache::lonnet::logthis('length of symbol "'.$symbol.'" > 1');
1556: }
1557: $symbol = '<a href="/adm/grades'.
1558: '?symb='.&Apache::lonnet::escape($resource->{'symb'}).
1559: '&student='.$student->{'username'}.
1560: '&userdom='.$student->{'domain'}.
1561: '&command=submission">'.$symbol.'</a>';
1562: }
1563: $value .= $symbol;
1564: }
1565: $Str .= $value;
1566: }
1567: if ($seq->{'randompick'}) {
1568: $max = $seq->{'randompick'};
1569: }
1570: return ($Str,$performance_length,$sum,$max,\@TriesData);
1571: }
1572:
1573: #######################################################
1574: #######################################################
1575:
1576: =pod
1577:
1578: =item &StudentPerformanceOnSequence()
1579:
1580: Inputs:
1581:
1582: =over 4
1583:
1584: =item $student
1585:
1586: =item $studentdata Hash ref to all student data
1587:
1588: =item $seq Hash ref, the sequence we are working on
1589:
1590: =item $links if defined we will output links to each resource.
1591:
1592: =back
1593:
1594: =cut
1595:
1596: #######################################################
1597: #######################################################
1598: sub StudentPerformanceOnSequence {
1599: my ($student,$studentdata,$seq,$links) = @_;
1600: $links = 'no' if (! defined($links));
1601: my $Str = ''; # final result string
1602: my ($score,$max) = (0,0);
1603: my $performance_length = 0;
1604: my $symbol;
1605: my @ScoreData = ();
1606: my $partscore;
1607: foreach my $resource (@{$seq->{'contents'}}) {
1608: next if ($resource->{'type'} ne 'assessment');
1609: my $resource_data = $studentdata->{$resource->{'symb'}};
1610: foreach my $part (@{$resource->{'parts'}}) {
1611: $partscore = undef;
1612: my $weight = &Apache::lonnet::EXT('resource.'.$part.'.weight',
1613: $resource->{'symb'},
1614: $student->{'domain'},
1615: $student->{'username'},
1616: $student->{'section'});
1617: if (!defined($weight) || ($weight eq '')) {
1618: $weight=1;
1619: }
1620: #
1621: $max += $weight; # see the 'excused' branch below...
1622: $performance_length++; # one character per part
1623: $symbol = ' '; # default to space
1624: #
1625: my $awarded = 0;
1626: if (exists($resource_data->{'resource.'.$part.'.awarded'})) {
1627: $awarded = $resource_data->{'resource.'.$part.'.awarded'};
1628: $awarded = 0 if (! $awarded);
1629: }
1630: #
1631: $partscore = $weight*$awarded;
1632: $score += $partscore;
1633: $symbol = $partscore;
1634: if (abs($symbol - sprintf("%.0f",$symbol)) < 0.001) {
1635: $symbol = sprintf("%.0f",$symbol);
1636: }
1637: if (length($symbol) > 1) {
1638: $symbol = '*';
1639: }
1640: if (exists($resource_data->{'resource.'.$part.'.solved'})) {
1641: my $status = $resource_data->{'resource.'.$part.'.solved'};
1642: if ($status eq 'excused') {
1643: $symbol = 'x';
1644: $max -= $weight; # Do not count 'excused' problems.
1645: }
1646: } else {
1647: # Unsolved. Did they try?
1648: if (exists($resource_data->{'resource.'.$part.'.tries'})){
1649: $symbol = '.';
1650: } else {
1651: $symbol = ' ';
1652: }
1653: }
1654: #
1655: if (! defined($partscore)) {
1656: $partscore = $symbol;
1657: }
1658: push (@ScoreData,$partscore);
1659: #
1660: if ( ($links eq 'yes' && $symbol ne ' ') || ($links eq 'all')) {
1661: $symbol = '<a href="/adm/grades'.
1662: '?symb='.&Apache::lonnet::escape($resource->{'symb'}).
1663: '&student='.$student->{'username'}.
1664: '&userdom='.$student->{'domain'}.
1665: '&command=submission">'.$symbol.'</a>';
1666: }
1667: $Str .= $symbol;
1668: }
1669: }
1670: return ($Str,$performance_length,$score,$max,\@ScoreData);
1671: }
1672:
1673: #######################################################
1674: #######################################################
1675:
1676: =pod
1677:
1678: =item &CreateLegend()
1679:
1680: This function returns a formatted string containing the legend for the
1681: chart. The legend describes the symbols used to represent grades for
1682: problems.
1683:
1684: =cut
1685:
1686: #######################################################
1687: #######################################################
1688: sub CreateLegend {
1689: my $Str = "<p><pre>".
1690: " 1 correct by student in 1 try\n".
1691: " 7 correct by student in 7 tries\n".
1692: " * correct by student in more than 9 tries\n".
1693: " + correct by hand grading or override\n".
1694: " - incorrect by override\n".
1695: " . incorrect attempted\n".
1696: " # ungraded attempted\n".
1697: " not attempted (blank field)\n".
1698: " x excused".
1699: "</pre><p>";
1700: return $Str;
1701: }
1702:
1703: #######################################################
1704: #######################################################
1705:
1706: =pod
1707:
1708: =back
1709:
1710: =cut
1711:
1712: #######################################################
1713: #######################################################
1714:
1715: 1;
1716:
1717: __END__
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