1: # The LearningOnline Network with CAPA
2: #
3: # $Id: lonstudentassessment.pm,v 1.95 2004/03/01 16:39:19 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 $single_student_mode evaluates to true if we are showing only one
92: student.
93:
94: =cut
95:
96: #######################################################
97: #######################################################
98: my $show_links;
99: my $output_mode;
100: my $chosen_output;
101: my $single_student_mode;
102:
103: #######################################################
104: #######################################################
105: # End of package variable declarations
106:
107: =pod
108:
109: =back
110:
111: =cut
112:
113: #######################################################
114: #######################################################
115:
116: =pod
117:
118: =item &BuildStudentAssessmentPage()
119:
120: Inputs:
121:
122: =over 4
123:
124: =item $r Apache Request
125:
126: =item $c Apache Connection
127:
128: =back
129:
130: =cut
131:
132: #######################################################
133: #######################################################
134: sub BuildStudentAssessmentPage {
135: my ($r,$c)=@_;
136: #
137: undef($Statistics);
138: undef($show_links);
139: undef($output_mode);
140: undef($chosen_output);
141: undef($single_student_mode);
142: #
143: my %Saveable_Parameters = ('Status' => 'scalar',
144: 'chartoutputmode' => 'scalar',
145: 'chartoutputdata' => 'scalar',
146: 'Section' => 'array',
147: 'StudentData' => 'array',
148: 'Maps' => 'array');
149: &Apache::loncommon::store_course_settings('chart',\%Saveable_Parameters);
150: &Apache::loncommon::restore_course_settings('chart',\%Saveable_Parameters);
151: #
152: &Apache::lonstatistics::PrepareClasslist();
153: #
154: $single_student_mode = 0;
155: $single_student_mode = 1 if ($ENV{'form.SelectedStudent'});
156: if ($ENV{'form.selectstudent'}) {
157: &Apache::lonstatistics::DisplayClasslist($r);
158: return;
159: }
160: #
161: # Print out the HTML headers for the interface
162: # This also parses the output mode selector
163: # This step must *always* be done.
164: $r->print(&CreateInterface());
165: $r->print('<input type="hidden" name="notfirstrun" value="true" />');
166: $r->print('<input type="hidden" name="sort" value="'.
167: $ENV{'form.sort'}.'" />');
168: $r->rflush();
169: #
170: if (! exists($ENV{'form.notfirstrun'}) && ! $single_student_mode) {
171: return;
172: }
173: #
174: my $initialize = \&html_initialize;
175: my $output_student = \&html_outputstudent;
176: my $finish = \&html_finish;
177: #
178: if ($output_mode eq 'excel') {
179: $initialize = \&excel_initialize;
180: $output_student = \&excel_outputstudent;
181: $finish = \&excel_finish;
182: } elsif ($output_mode eq 'csv') {
183: $initialize = \&csv_initialize;
184: $output_student = \&csv_outputstudent;
185: $finish = \&csv_finish;
186: }
187: #
188: if($c->aborted()) { return ; }
189: #
190: # Determine which students we want to look at
191: my @Students;
192: if ($single_student_mode) {
193: @Students = (&Apache::lonstatistics::current_student());
194: $r->print(&next_and_previous_buttons());
195: $r->rflush();
196: } else {
197: @Students = @Apache::lonstatistics::Students;
198: }
199: #
200: # Perform generic initialization tasks
201: # Since we use lonnet::EXT to retrieve problem weights,
202: # to ensure current data we must clear the caches out.
203: # This makes sure that parameter changes at the student level
204: # are immediately reflected in the chart.
205: &Apache::lonnet::clear_EXT_cache_status();
206: #
207: # Clean out loncoursedata's package data, just to be safe.
208: &Apache::loncoursedata::clear_internal_caches();
209: #
210: # Call the initialize routine selected above
211: $initialize->($r);
212: foreach my $student (@Students) {
213: if($c->aborted()) {
214: $finish->($r);
215: return ;
216: }
217: # Call the output_student routine selected above
218: $output_student->($r,$student);
219: }
220: # Call the "finish" routine selected above
221: $finish->($r);
222: #
223: return;
224: }
225:
226: #######################################################
227: #######################################################
228: sub next_and_previous_buttons {
229: my $Str = '';
230: $Str .= '<input type="hidden" name="SelectedStudent" value="'.
231: $ENV{'form.SelectedStudent'}.'" />';
232: #
233: # Build the previous student link
234: my $previous = &Apache::lonstatistics::previous_student();
235: my $previousbutton = '';
236: if (defined($previous)) {
237: my $sname = $previous->{'username'}.':'.$previous->{'domain'};
238: $previousbutton .= '<input type="button" value="'.
239: 'Previous Student ('.
240: $previous->{'username'}.'@'.$previous->{'domain'}.')'.
241: '" onclick="document.Statistics.SelectedStudent.value='.
242: "'".$sname."'".';'.
243: 'document.Statistics.submit();" />';
244: } else {
245: $previousbutton .= '<input type="button" value="'.
246: 'Previous student (none)'.'" />';
247: }
248: #
249: # Build the next student link
250: my $next = &Apache::lonstatistics::next_student();
251: my $nextbutton = '';
252: if (defined($next)) {
253: my $sname = $next->{'username'}.':'.$next->{'domain'};
254: $nextbutton .= '<input type="button" value="'.
255: 'Next Student ('.
256: $next->{'username'}.'@'.$next->{'domain'}.')'.
257: '" onclick="document.Statistics.SelectedStudent.value='.
258: "'".$sname."'".';'.
259: 'document.Statistics.submit();" />';
260: } else {
261: $nextbutton .= '<input type="button" value="'.
262: 'Next student (none)'.'" />';
263: }
264: #
265: # Build the 'all students' button
266: my $all = '';
267: $all .= '<input type="button" value="All Students" '.
268: '" onclick="document.Statistics.SelectedStudent.value='.
269: "''".';'.'document.Statistics.submit();" />';
270: $Str .= $previousbutton.(' 'x5).$all.(' 'x5).$nextbutton;
271: return $Str;
272: }
273:
274: #######################################################
275: #######################################################
276:
277: sub get_student_fields_to_show {
278: my @to_show = @Apache::lonstatistics::SelectedStudentData;
279: foreach (@to_show) {
280: if ($_ eq 'all') {
281: @to_show = @Apache::lonstatistics::StudentDataOrder;
282: last;
283: }
284: }
285: return @to_show;
286: }
287:
288: #######################################################
289: #######################################################
290:
291: =pod
292:
293: =item &CreateInterface()
294:
295: Called by &BuildStudentAssessmentPage to create the top part of the
296: page which displays the chart.
297:
298: Inputs: None
299:
300: Returns: A string containing the HTML for the headers and top table for
301: the chart page.
302:
303: =cut
304:
305: #######################################################
306: #######################################################
307: sub CreateInterface {
308: my $Str = '';
309: $Str .= &Apache::lonhtmlcommon::breadcrumbs(undef,'Chart');
310: # $Str .= &CreateLegend();
311: $Str .= '<table cellspacing="5">'."\n";
312: $Str .= '<tr>';
313: $Str .= '<td align="center"><b>'.&mt('Sections').'</b></td>';
314: $Str .= '<td align="center"><b>'.&mt('Student Data</b>').'</td>';
315: $Str .= '<td align="center"><b>'.&mt('Enrollment Status').'</b></td>';
316: $Str .= '<td align="center"><b>'.&mt('Sequences and Folders').'</b></td>';
317: $Str .= '<td align="center"><b>'.&mt('Output Format').'</b>'.
318: &Apache::loncommon::help_open_topic("Chart_Output_Formats").
319: '</td>';
320: $Str .= '<td align="center"><b>'.&mt('Output Data').'</b>'.
321: &Apache::loncommon::help_open_topic("Chart_Output_Data").
322: '</td>';
323: $Str .= '</tr>'."\n";
324: #
325: $Str .= '<tr><td align="center">'."\n";
326: $Str .= &Apache::lonstatistics::SectionSelect('Section','multiple',5);
327: $Str .= '</td><td align="center">';
328: my $only_seq_with_assessments = sub {
329: my $s=shift;
330: if ($s->{'num_assess'} < 1) {
331: return 0;
332: } else {
333: return 1;
334: }
335: };
336: $Str .= &Apache::lonstatistics::StudentDataSelect('StudentData','multiple',
337: 5,undef);
338: $Str .= '</td><td>'."\n";
339: $Str .= &Apache::lonhtmlcommon::StatusOptions(undef,undef,5);
340: $Str .= '</td><td>'."\n";
341: $Str .= &Apache::lonstatistics::MapSelect('Maps','multiple,all',5,
342: $only_seq_with_assessments);
343: $Str .= '</td><td>'."\n";
344: $Str .= &CreateAndParseOutputSelector();
345: $Str .= '</td><td>'."\n";
346: $Str .= &CreateAndParseOutputDataSelector();
347: $Str .= '</td></tr>'."\n";
348: $Str .= '</table>'."\n";
349: $Str .= '<input type="submit" name="Generate Chart" value="'.
350: &mt('Generate Chart').'" />';
351: $Str .= ' 'x5;
352: $Str .= '<input type="submit" name="selectstudent" value="'.
353: &mt('Select One Student').'" />';
354: $Str .= ' 'x5;
355: $Str .= '<input type="submit" name="ClearCache" value="'.
356: &mt('Clear Caches').'" />';
357: $Str .= ' 'x5;
358: $Str .= '<br />';
359: return $Str;
360: }
361:
362: #######################################################
363: #######################################################
364:
365: =pod
366:
367: =item &CreateAndParseOutputSelector()
368:
369: =cut
370:
371: #######################################################
372: #######################################################
373: my @OutputOptions =
374: ({ name => 'HTML, with links',
375: value => 'html, with links',
376: description => 'Output HTML with each symbol linked to the problem '.
377: 'which generated it.',
378: mode => 'html',
379: show_links => 'yes',
380: },
381: { name => 'HTML, with all links',
382: value => 'html, with all links',
383: description => 'Output HTML with each symbol linked to the problem '.
384: 'which generated it. '.
385: 'This includes links for unattempted problems.',
386: mode => 'html',
387: show_links => 'all',
388: },
389: { name => 'HTML, without links',
390: value => 'html, without links',
391: description => 'Output HTML. By not including links, the size of the'.
392: ' web page is greatly reduced. If your browser crashes on the '.
393: 'full display, try this.',
394: mode => 'html',
395: show_links => 'no',
396: },
397: { name => 'Excel',
398: value => 'excel',
399: description => 'Output an Excel file (compatable with Excel 95).',
400: mode => 'excel',
401: show_links => 'no',
402: },
403: { name => 'CSV',
404: value => 'csv',
405: description => 'Output a comma seperated values file suitable for '.
406: 'import into a spreadsheet program. Using this method as opposed '.
407: 'to Excel output allows you to organize your data before importing'.
408: ' it into a spreadsheet program.',
409: mode => 'csv',
410: show_links => 'no',
411: },
412: );
413:
414: sub OutputDescriptions {
415: my $Str = '';
416: $Str .= "<h2>Output Formats</h2>\n";
417: $Str .= "<dl>\n";
418: foreach my $outputmode (@OutputOptions) {
419: $Str .=" <dt>".$outputmode->{'name'}."</dt>\n";
420: $Str .=" <dd>".$outputmode->{'description'}."</dd>\n";
421: }
422: $Str .= "</dl>\n";
423: return $Str;
424: }
425:
426: sub CreateAndParseOutputSelector {
427: my $Str = '';
428: my $elementname = 'chartoutputmode';
429: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
430: [$elementname]);
431: #
432: # Format for output options is 'mode, restrictions';
433: my $selected = 'html, without links';
434: if (exists($ENV{'form.'.$elementname})) {
435: if (ref($ENV{'form.'.$elementname} eq 'ARRAY')) {
436: $selected = $ENV{'form.'.$elementname}->[0];
437: } else {
438: $selected = $ENV{'form.'.$elementname};
439: }
440: }
441: #
442: # Set package variables describing output mode
443: $show_links = 'no';
444: $output_mode = 'html';
445: foreach my $option (@OutputOptions) {
446: next if ($option->{'value'} ne $selected);
447: $output_mode = $option->{'mode'};
448: $show_links = $option->{'show_links'};
449: }
450:
451: #
452: # Build the form element
453: $Str = qq/<select size="5" name="$elementname">/;
454: foreach my $option (@OutputOptions) {
455: $Str .= "\n".' <option value="'.$option->{'value'}.'"';
456: $Str .= " selected " if ($option->{'value'} eq $selected);
457: $Str .= ">".&mt($option->{'name'})."<\/option>";
458: }
459: $Str .= "\n</select>";
460: return $Str;
461: }
462:
463: ##
464: ## Data selector stuff
465: ##
466: my @OutputDataOptions =
467: (
468: { name => 'Scores Summary',
469: base => 'scores',
470: value => 'sum and total',
471: scores => 1,
472: tries => 0,
473: every_problem => 0,
474: sequence_sum => 1,
475: sequence_max => 1,
476: grand_total => 1,
477: summary_table => 1,
478: maximum_row => 1,
479: shortdesc => 'Total Score and Maximum Possible for each '.
480: 'Sequence or Folder',
481: longdesc => 'The score of each student as well as the '.
482: ' maximum possible on each Sequence or Folder.',
483: },
484: { name => 'Scores Per Problem',
485: base => 'scores',
486: value => 'scores',
487: scores => 1,
488: tries => 0,
489: correct => 0,
490: every_problem => 1,
491: sequence_sum => 1,
492: sequence_max => 1,
493: grand_total => 1,
494: summary_table => 1,
495: maximum_row => 1,
496: shortdesc => 'Score on each Problem Part',
497: longdesc =>'The students score on each problem part, computed as'.
498: 'the part weight * part awarded',
499: },
500: { name =>'Tries',
501: base =>'tries',
502: value => 'tries',
503: scores => 0,
504: tries => 1,
505: correct => 0,
506: every_problem => 1,
507: sequence_sum => 0,
508: sequence_max => 0,
509: grand_total => 0,
510: summary_table => 0,
511: maximum_row => 0,
512: shortdesc => 'Number of Tries before success on each Problem Part',
513: longdesc =>'The number of tries before success on each problem part.',
514: },
515: { name =>'Parts Correct',
516: base =>'tries',
517: value => 'parts correct total',
518: scores => 0,
519: tries => 0,
520: correct => 1,
521: every_problem => 1,
522: sequence_sum => 1,
523: sequence_max => 1,
524: grand_total => 1,
525: summary_table => 1,
526: maximum_row => 0,
527: shortdesc => 'Number of Problem Parts completed successfully.',
528: longdesc => 'The Number of Problem Parts completed successfully and '.
529: 'the maximum possible for each student',
530: },
531: );
532:
533: sub HTMLifyOutputDataDescriptions {
534: my $Str = '';
535: $Str .= "<h2>Output Data</h2>\n";
536: $Str .= "<dl>\n";
537: foreach my $option (@OutputDataOptions) {
538: $Str .= ' <dt>'.$option->{'name'}.'</dt>';
539: $Str .= '<dd>'.$option->{'longdesc'}.'</dd>'."\n";
540: }
541: $Str .= "</dl>\n";
542: return $Str;
543: }
544:
545: sub CreateAndParseOutputDataSelector {
546: my $Str = '';
547: my $elementname = 'chartoutputdata';
548: #
549: my $selected = 'scores';
550: if (exists($ENV{'form.'.$elementname})) {
551: if (ref($ENV{'form.'.$elementname} eq 'ARRAY')) {
552: $selected = $ENV{'form.'.$elementname}->[0];
553: } else {
554: $selected = $ENV{'form.'.$elementname};
555: }
556: }
557: #
558: $chosen_output = $OutputDataOptions[0];
559: foreach my $option (@OutputDataOptions) {
560: if ($option->{'value'} eq $selected) {
561: $chosen_output = $option;
562: }
563: }
564: #
565: # Build the form element
566: $Str = qq/<select size="5" name="$elementname">/;
567: foreach my $option (@OutputDataOptions) {
568: $Str .= "\n".' <option value="'.$option->{'value'}.'"';
569: $Str .= " selected " if ($option->{'value'} eq $chosen_output->{'value'});
570: $Str .= ">".&mt($option->{'name'})."<\/option>";
571: }
572: $Str .= "\n</select>";
573: return $Str;
574:
575: }
576:
577: #######################################################
578: #######################################################
579:
580: =pod
581:
582: =head2 HTML output routines
583:
584: =item &html_initialize($r)
585:
586: Create labels for the columns of student data to show.
587:
588: =item &html_outputstudent($r,$student)
589:
590: Return a line of the chart for a student.
591:
592: =item &html_finish($r)
593:
594: =cut
595:
596: #######################################################
597: #######################################################
598: {
599: my $padding;
600: my $count;
601:
602: my $nodata_count; # The number of students for which there is no data
603: my %prog_state; # progress state used by loncommon PrgWin routines
604:
605: sub html_initialize {
606: my ($r) = @_;
607: #
608: $padding = ' 'x3;
609: $count = 0;
610: $nodata_count = 0;
611: undef(%prog_state);
612: #
613: $r->print("<h3>".$ENV{'course.'.$ENV{'request.course.id'}.'.description'}.
614: " ".localtime(time)."</h3>");
615:
616: if ($chosen_output->{'base'} !~ /^final table/) {
617: $r->print("<h3>".$chosen_output->{'shortdesc'}."</h3>");
618: }
619: my $Str = "<pre>\n";
620: # First, the @StudentData fields need to be listed
621: my @to_show = &get_student_fields_to_show();
622: foreach my $field (@to_show) {
623: my $title=$Apache::lonstatistics::StudentData{$field}->{'title'};
624: my $base =$Apache::lonstatistics::StudentData{$field}->{'base_width'};
625: my $width=$Apache::lonstatistics::StudentData{$field}->{'width'};
626: $Str .= $title.' 'x($width-$base).$padding;
627: }
628: #
629: # Compute the column widths and output the sequence titles
630: foreach my $sequence (&Apache::lonstatistics::Sequences_with_Assess()){
631: #
632: # Comptue column widths
633: $sequence->{'width_sum'} = 0;
634: if ($chosen_output->{'sequence_sum'}) {
635: # Use 3 digits for the sum
636: $sequence->{'width_sum'} = 3;
637: }
638: if ($chosen_output->{'sequence_max'}) {
639: if ($sequence->{'width_sum'}>0) {
640: # One digit for the '/'
641: $sequence->{'width_sum'} +=1;
642: }
643: # Use 3 digits for the total
644: $sequence->{'width_sum'}+=3;
645: }
646: #
647: if ($chosen_output->{'every_problem'}) {
648: # one problem per digit
649: $sequence->{'width_problem'} = $sequence->{'num_assess_parts'};
650: } else {
651: $sequence->{'width_problem'} = 0;
652: }
653: $sequence->{'width_total'} = $sequence->{'width_problem'} +
654: $sequence->{'width_sum'};
655: if ($sequence->{'width_total'} < length(&HTML::Entities::decode($sequence->{'title'}))) {
656: $sequence->{'width_total'} = length(&HTML::Entities::decode($sequence->{'title'}));
657: }
658: #
659: # Output the sequence titles
660: $Str .=
661: $sequence->{'title'}.' 'x($sequence->{'width_total'}-
662: length($sequence->{'title'})
663: ).$padding;
664: }
665: $Str .= "total</pre>\n";
666: $Str .= "<pre>";
667: $r->print($Str);
668: $r->rflush();
669: return;
670: }
671:
672: sub html_outputstudent {
673: my ($r,$student) = @_;
674: my $Str = '';
675: #
676: if($count++ % 5 == 0 && $count > 0) {
677: $r->print("</pre><pre>");
678: }
679: # First, the @StudentData fields need to be listed
680: my @to_show = &get_student_fields_to_show();
681: foreach my $field (@to_show) {
682: my $title=$student->{$field};
683: my $base = length($title);
684: my $width=$Apache::lonstatistics::StudentData{$field}->{'width'};
685: $Str .= $title.' 'x($width-$base).$padding;
686: }
687: # Get ALL the students data
688: my %StudentsData;
689: my @tmp = &Apache::loncoursedata::get_current_state
690: ($student->{'username'},$student->{'domain'},undef,
691: $ENV{'request.course.id'});
692: if ((scalar @tmp > 0) && ($tmp[0] !~ /^error:/)) {
693: %StudentsData = @tmp;
694: }
695: if (scalar(@tmp) < 1) {
696: $nodata_count++;
697: $Str .= '<font color="blue">No Course Data</font>'."\n";
698: $r->print($Str);
699: $r->rflush();
700: return;
701: }
702: #
703: # By sequence build up the data
704: my $studentstats;
705: my $PerformanceStr = '';
706: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
707: my ($performance,$performance_length,$score,$seq_max,$rawdata);
708: if ($chosen_output->{'tries'}) {
709: ($performance,$performance_length,$score,$seq_max,$rawdata) =
710: &StudentTriesOnSequence($student,\%StudentsData,
711: $seq,$show_links);
712: } else {
713: ($performance,$performance_length,$score,$seq_max,$rawdata) =
714: &StudentPerformanceOnSequence($student,\%StudentsData,
715: $seq,$show_links);
716: }
717: my $ratio='';
718: if ($chosen_output->{'sequence_sum'}) {
719: $ratio .= sprintf("%3d",$score);
720: }
721: if ($chosen_output->{'sequence_max'}) {
722: if ($chosen_output->{'sequence_sum'}) {
723: $ratio .= '/';
724: }
725: $ratio .= sprintf("%3d",$seq_max);
726: }
727: #
728: if (! $chosen_output->{'every_problem'}) {
729: $performance = '';
730: $performance_length=0;
731: }
732: $performance .= ' 'x($seq->{'width_total'}-$performance_length-$seq->{'width_sum'}).
733: $ratio;
734: #
735: $Str .= $performance.$padding;
736: #
737: $studentstats->{$seq->{'symb'}}->{'score'}= $score;
738: $studentstats->{$seq->{'symb'}}->{'max'} = $seq_max;
739: }
740: #
741: # Total it up and store the statistics info.
742: my ($score,$max) = (0,0);
743: while (my ($symb,$seq_stats) = each (%{$studentstats})) {
744: $Statistics->{$symb}->{'score'} += $seq_stats->{'score'};
745: if ($Statistics->{$symb}->{'max'} < $seq_stats->{'max'}) {
746: $Statistics->{$symb}->{'max'} = $seq_stats->{'max'};
747: }
748: $score += $seq_stats->{'score'};
749: $max += $seq_stats->{'max'};
750: }
751: $Str .= ' '.' 'x(length($max)-length($score)).$score.'/'.$max;
752: $Str .= " \n";
753: #
754: $r->print($Str);
755: #
756: $r->rflush();
757: return;
758: }
759:
760: sub html_finish {
761: my ($r) = @_;
762: #
763: # Check for suppressed output and close the progress window if so
764: $r->print("</pre>\n");
765: if ($chosen_output->{'summary_table'}) {
766: if ($single_student_mode) {
767: $r->print(&SingleStudentTotal());
768: } else {
769: $r->print(&StudentAverageTotal());
770: }
771: }
772: $r->rflush();
773: return;
774: }
775:
776: sub StudentAverageTotal {
777: my $Str = "<h3>Summary Tables</h3>\n";
778: my $num_students = scalar(@Apache::lonstatistics::Students);
779: my $total_ave = 0;
780: my $total_max = 0;
781: $Str .= '<table border=2 cellspacing="1">'."\n";
782: $Str .= "<tr><th>Title</th><th>Average</th><th>Maximum</th></tr>\n";
783: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
784: my $ave;
785: if ($num_students > $nodata_count) {
786: $ave = int(100*($Statistics->{$seq->{'symb'}}->{'score'}/
787: ($num_students-$nodata_count)))/100;
788: } else {
789: $ave = 0;
790: }
791: $total_ave += $ave;
792: my $max = $Statistics->{$seq->{'symb'}}->{'max'};
793: $total_max += $max;
794: $ave = sprintf("%.2f",$ave);
795: $Str .= '<tr><td>'.$seq->{'title'}.'</td>'.
796: '<td align="right">'.$ave.' </td>'.
797: '<td align="right">'.$max.' '.'</td></tr>'."\n";
798: }
799: $total_ave = sprintf('%.2f',$total_ave); # only two digit
800: $Str .= "</table>\n";
801: $Str .= '<table border=2 cellspacing="1">'."\n";
802: $Str .= '<tr><th>Number of Students</th><th>Average</th>'.
803: "<th>Maximum</th></tr>\n";
804: $Str .= '<tr>'.
805: '<td align="right">'.($num_students-$nodata_count).'</td>'.
806: '<td align="right">'.$total_ave.' '.'</td>'.
807: '<td align="right">'.$total_max.' '.'</td>';
808: $Str .= "</table>\n";
809: return $Str;
810: }
811:
812: sub SingleStudentTotal {
813: my $student = &Apache::lonstatistics::current_student();
814: my $Str = "<h3>Summary table for ".$student->{'fullname'}." ".
815: $student->{'username'}.'@'.$student->{'domain'}."</h3>\n";
816: $Str .= '<table border=2 cellspacing="1">'."\n";
817: $Str .=
818: "<tr><th>Sequence or Folder</th><th>Score</th><th>Maximum</th></tr>\n";
819: my $total = 0;
820: my $total_max = 0;
821: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
822: my $value = $Statistics->{$seq->{'symb'}}->{'score'};
823: my $max = $Statistics->{$seq->{'symb'}}->{'max'};
824: $Str .= '<tr><td>'.$seq->{'title'}.'</td>'.
825: '<td align="right">'.$value.'</td>'.
826: '<td align="right">'.$max.'</td></tr>'."\n";
827: $total += $value;
828: $total_max +=$max;
829: }
830: $Str .= '<tr><td><b>Total</b></td>'.
831: '<td align="right">'.$total.'</td>'.
832: '<td align="right">'.$total_max."</td></tr>\n";
833: $Str .= "</table>\n";
834: return $Str;
835: }
836:
837: }
838:
839: #######################################################
840: #######################################################
841:
842: =pod
843:
844: =head2 EXCEL subroutines
845:
846: =item &excel_initialize($r)
847:
848: =item &excel_outputstudent($r,$student)
849:
850: =item &excel_finish($r)
851:
852: =cut
853:
854: #######################################################
855: #######################################################
856: {
857:
858: my $excel_sheet;
859: my $excel_workbook;
860:
861: my $filename;
862: my $rows_output;
863: my $cols_output;
864:
865: my %prog_state; # progress window state
866: my $request_aborted;
867:
868: my $total_formula;
869:
870: sub excel_initialize {
871: my ($r) = @_;
872: #
873: undef ($excel_sheet);
874: undef ($excel_workbook);
875: undef ($filename);
876: undef ($rows_output);
877: undef ($cols_output);
878: undef (%prog_state);
879: undef ($request_aborted);
880: undef ($total_formula);
881: #
882: my $total_columns = scalar(&get_student_fields_to_show());
883: my $num_students = scalar(@Apache::lonstatistics::Students);
884: #
885: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
886: if ($chosen_output->{'every_problem'}) {
887: $total_columns += $seq->{'num_assess_parts'};
888: }
889: # Add 2 because we need a 'sequence_sum' and 'total' column for each
890: $total_columns += 2;
891: }
892: if ($chosen_output->{'base'} eq 'tries' && $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>Parts Correct</b> or <b>Parts Correct & Totals</b>).
905: </p>
906: END
907: $request_aborted = 1;
908: }
909: if ($chosen_output->{'base'} eq 'scores' && $total_columns > 255) {
910: $r->print(<<END);
911: <h2>Unable to Complete Request</h2>
912: <p>
913: LON-CAPA is unable to produce your Excel spreadsheet because your selections
914: will result in more than 255 columns. Excel allows only 255 columns in a
915: spreadsheet.
916: </p><p>
917: You may consider reducing the number of <b>Sequences or Folders</b> you
918: have selected.
919: </p><p>
920: LON-CAPA can produce <b>CSV</b> files of this data or Excel files of the
921: <b>Scores Summary</b> data.
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: # Determine rows
939: my $header_row = $rows_output++;
940: my $description_row = $rows_output++;
941: $rows_output++; # blank row
942: my $summary_header_row;
943: if ($chosen_output->{'summary_table'}) {
944: $summary_header_row = $rows_output++;
945: $rows_output+= scalar(&Apache::lonstatistics::Sequences_with_Assess());
946: $rows_output++;
947: }
948: my $sequence_name_row = $rows_output++;
949: my $resource_name_row = $rows_output++;
950: my $maximum_data_row = $rows_output++;
951: if (! $chosen_output->{'maximum_row'}) {
952: $rows_output--;
953: }
954: my $first_data_row = $rows_output++;
955: #
956: # Create sheet
957: $excel_workbook = Spreadsheet::WriteExcel->new('/home/httpd'.$filename);
958: #
959: # Check for errors
960: if (! defined($excel_workbook)) {
961: $r->log_error("Error creating excel spreadsheet $filename: $!");
962: $r->print("Problems creating new Excel file. ".
963: "This error has been logged. ".
964: "Please alert your LON-CAPA administrator");
965: return ;
966: }
967: #
968: # The excel spreadsheet stores temporary data in files, then put them
969: # together. If needed we should be able to disable this (memory only).
970: # The temporary directory must be specified before calling 'addworksheet'.
971: # File::Temp is used to determine the temporary directory.
972: $excel_workbook->set_tempdir($Apache::lonnet::tmpdir);
973: #
974: my $format = &Apache::loncommon::define_excel_formats($excel_workbook);
975: #
976: # Add a worksheet
977: my $sheetname = $ENV{'course.'.$ENV{'request.course.id'}.'.description'};
978: $sheetname = &Apache::loncommon::clean_excel_name($sheetname);
979: $excel_sheet = $excel_workbook->addworksheet($sheetname);
980: #
981: # Put the course description in the header
982: $excel_sheet->write($header_row,$cols_output++,
983: $ENV{'course.'.$ENV{'request.course.id'}.'.description'},
984: $format->{'h1'});
985: $cols_output += 3;
986: #
987: # Put a description of the sections listed
988: my $sectionstring = '';
989: my @Sections = @Apache::lonstatistics::SelectedSections;
990: if (scalar(@Sections) > 1) {
991: if (scalar(@Sections) > 2) {
992: my $last = pop(@Sections);
993: $sectionstring = "Sections ".join(', ',@Sections).', and '.$last;
994: } else {
995: $sectionstring = "Sections ".join(' and ',@Sections);
996: }
997: } else {
998: if ($Sections[0] eq 'all') {
999: $sectionstring = "All sections";
1000: } else {
1001: $sectionstring = "Section ".$Sections[0];
1002: }
1003: }
1004: $excel_sheet->write($header_row,$cols_output++,$sectionstring,
1005: $format->{'h3'});
1006: $cols_output += scalar(@Sections);
1007: #
1008: # Put the date in there too
1009: $excel_sheet->write($header_row,$cols_output++,
1010: 'Compiled on '.localtime(time),$format->{'h3'});
1011: #
1012: $cols_output = 0;
1013: $excel_sheet->write($description_row,$cols_output++,
1014: $chosen_output->{'shortdesc'},
1015: $format->{'h3'});
1016: ##############################################
1017: # Output headings for the raw data
1018: ##############################################
1019: #
1020: # Add the student headers
1021: $cols_output = 0;
1022: foreach my $field (&get_student_fields_to_show()) {
1023: $excel_sheet->write($resource_name_row,$cols_output++,$field,
1024: $format->{'bold'});
1025: }
1026: #
1027: # Add the remaining column headers
1028: my $total_formula_string = '=0';
1029: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
1030: $excel_sheet->write($sequence_name_row,,
1031: $cols_output,$seq->{'title'},$format->{'bold'});
1032: # Determine starting cell
1033: $seq->{'Excel:startcell'}=
1034: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1035: ($first_data_row,$cols_output);
1036: $seq->{'Excel:startcol'}=$cols_output;
1037: my $count = 0;
1038: if ($chosen_output->{'every_problem'}) {
1039: # Put the names of the problems and parts into the sheet
1040: foreach my $res (@{$seq->{'contents'}}) {
1041: if ($res->{'type'} ne 'assessment' ||
1042: ! exists($res->{'parts'}) ||
1043: ref($res->{'parts'}) ne 'ARRAY' ||
1044: scalar(@{$res->{'parts'}}) < 1) {
1045: next;
1046: }
1047: if (scalar(@{$res->{'parts'}}) > 1) {
1048: foreach my $part (@{$res->{'parts'}}) {
1049: $excel_sheet->write($resource_name_row,
1050: $cols_output++,
1051: $res->{'title'}.' part '.$part,
1052: $format->{'bold'});
1053: }
1054: } else {
1055: $excel_sheet->write($resource_name_row,
1056: $cols_output++,
1057: $res->{'title'},$format->{'bold'});
1058: }
1059: $count++;
1060: }
1061: }
1062: # Determine ending cell
1063: if ($count <= 1) {
1064: $seq->{'Excel:endcell'} = $seq->{'Excel:startcell'};
1065: $seq->{'Excel:endcol'} = $seq->{'Excel:startcol'};
1066: } else {
1067: $seq->{'Excel:endcell'} =
1068: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1069: ($first_data_row,$cols_output-1);
1070: $seq->{'Excel:endcol'} = $cols_output-1;
1071: }
1072: # Create the formula for summing up this sequence
1073: if (! exists($seq->{'Excel:endcell'}) ||
1074: ! defined($seq->{'Excel:endcell'})) {
1075: $seq->{'Excel:endcell'} = $seq->{'Excel:startcell'};
1076: }
1077: $seq->{'Excel:sum'}= $excel_sheet->store_formula
1078: ('=SUM('.$seq->{'Excel:startcell'}.
1079: ':'.$seq->{'Excel:endcell'}.')');
1080: # Determine cell the score is held in
1081: $seq->{'Excel:scorecell'} =
1082: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1083: ($first_data_row,$cols_output);
1084: $seq->{'Excel:scorecol'}=$cols_output;
1085: if ($chosen_output->{'base'} eq 'parts correct total') {
1086: $excel_sheet->write($resource_name_row,$cols_output++,
1087: 'parts correct',
1088: $format->{'bold'});
1089: } elsif ($chosen_output->{'sequence_sum'}) {
1090: if ($chosen_output->{'correct'}) {
1091: # Only reporting the number correct, so do not call it score
1092: $excel_sheet->write($resource_name_row,$cols_output++,
1093: 'sum',
1094: $format->{'bold'});
1095: } else {
1096: $excel_sheet->write($resource_name_row,$cols_output++,
1097: 'score',
1098: $format->{'bold'});
1099: }
1100: }
1101: #
1102: $total_formula_string.='+'.
1103: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1104: ($first_data_row,$cols_output-1);
1105: if ($chosen_output->{'sequence_max'}) {
1106: $excel_sheet->write($resource_name_row,$cols_output++,
1107: 'maximum',
1108: $format->{'bold'});
1109: }
1110: }
1111: if ($chosen_output->{'grand_total'}) {
1112: $excel_sheet->write($resource_name_row,$cols_output++,'Total',
1113: $format->{'bold'});
1114: }
1115: $total_formula = $excel_sheet->store_formula($total_formula_string);
1116: ##############################################
1117: # Output a row for MAX, if appropriate
1118: ##############################################
1119: if ($chosen_output->{'maximum_row'}) {
1120: $cols_output = 0;
1121: foreach my $field (&get_student_fields_to_show()) {
1122: if ($field eq 'username' || $field eq 'fullname' ||
1123: $field eq 'id') {
1124: $excel_sheet->write($maximum_data_row,$cols_output++,'Maximum',
1125: $format->{'bold'});
1126: } else {
1127: $excel_sheet->write($maximum_data_row,$cols_output++,'');
1128: }
1129: }
1130: #
1131: # Add the maximums for each sequence or assessment
1132: my %total_cell_translation;
1133: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
1134: $cols_output=$seq->{'Excel:startcol'};
1135: $total_cell_translation{$seq->{'Excel:scorecell'}} =
1136: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1137: ($maximum_data_row,$seq->{'Excel:scorecol'});
1138: my $weight;
1139: my $max = 0;
1140: foreach my $resource (@{$seq->{'contents'}}) {
1141: next if ($resource->{'type'} ne 'assessment');
1142: foreach my $part (@{$resource->{'parts'}}) {
1143: $weight = 1;
1144: if ($chosen_output->{'scores'}) {
1145: $weight = &Apache::lonnet::EXT
1146: ('resource.'.$part.'.weight',$resource->{'symb'},
1147: undef,undef,undef);
1148: if (!defined($weight) || ($weight eq '')) {
1149: $weight=1;
1150: }
1151: }
1152: if ($chosen_output->{'scores'} &&
1153: $chosen_output->{'every_problem'}) {
1154: $excel_sheet->write($maximum_data_row,$cols_output++,
1155: $weight);
1156: }
1157: $max += $weight;
1158: }
1159: }
1160: #
1161: if ($chosen_output->{'sequence_sum'} &&
1162: $chosen_output->{'every_problem'}) {
1163: my %replaceCells;
1164: $replaceCells{$seq->{'Excel:startcell'}} =
1165: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1166: ($maximum_data_row,$seq->{'Excel:startcol'});
1167: $replaceCells{$seq->{'Excel:endcell'}} =
1168: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1169: ($maximum_data_row,$seq->{'Excel:endcol'});
1170: $excel_sheet->repeat_formula($maximum_data_row,$cols_output++,
1171: $seq->{'Excel:sum'},undef,
1172: %replaceCells);
1173: } elsif ($chosen_output->{'sequence_sum'}) {
1174: $excel_sheet->write($maximum_data_row,$cols_output++,$max);
1175: }
1176: if ($chosen_output->{'sequence_max'}) {
1177: $excel_sheet->write($maximum_data_row,$cols_output++,$max);
1178: }
1179: #
1180: }
1181: if ($chosen_output->{'grand_total'}) {
1182: $excel_sheet->repeat_formula($maximum_data_row,$cols_output++,
1183: $total_formula,undef,
1184: %total_cell_translation);
1185: }
1186: } # End of MAXIMUM row output if ($chosen_output->{'maximum_row'}) {
1187: $rows_output = $first_data_row;
1188: ##############################################
1189: # Output summary table, which actually is above the sequence name row.
1190: ##############################################
1191: if ($chosen_output->{'summary_table'}) {
1192: $cols_output = 0;
1193: $excel_sheet->write($summary_header_row,$cols_output++,
1194: 'Summary Table',$format->{'bold'});
1195: if ($chosen_output->{'maximum_row'}) {
1196: $excel_sheet->write($summary_header_row,$cols_output++,
1197: 'Maximum',$format->{'bold'});
1198: }
1199: $excel_sheet->write($summary_header_row,$cols_output++,
1200: 'Average',$format->{'bold'});
1201: $excel_sheet->write($summary_header_row,$cols_output++,
1202: 'Median',$format->{'bold'});
1203: $excel_sheet->write($summary_header_row,$cols_output++,
1204: 'Std Dev',$format->{'bold'});
1205: my $row = $summary_header_row+1;
1206: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
1207: $cols_output = 0;
1208: $excel_sheet->write($row,$cols_output++,
1209: $seq->{'title'},
1210: $format->{'bold'});
1211: if ($chosen_output->{'maximum_row'}) {
1212: $excel_sheet->write
1213: ($row,$cols_output++,
1214: '='.
1215: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1216: ($maximum_data_row,$seq->{'Excel:scorecol'})
1217: );
1218: }
1219: my $range =
1220: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1221: ($first_data_row,$seq->{'Excel:scorecol'}).
1222: ':'.
1223: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1224: ($first_data_row+$num_students-1,$seq->{'Excel:scorecol'});
1225: $excel_sheet->write($row,$cols_output++,
1226: '=AVERAGE('.$range.')');
1227: $excel_sheet->write($row,$cols_output++,
1228: '=MEDIAN('.$range.')');
1229: $excel_sheet->write($row,$cols_output++,
1230: '=STDEV('.$range.')');
1231: $row++;
1232: }
1233: }
1234: ##############################################
1235: # Take care of non-excel initialization
1236: ##############################################
1237: #
1238: # Let the user know what we are doing
1239: my $studentcount = scalar(@Apache::lonstatistics::Students);
1240: if ($ENV{'form.SelectedStudent'}) {
1241: $studentcount = '1';
1242: }
1243: if ($studentcount > 1) {
1244: $r->print('<h1>'.&mt('Compiling Excel spreadsheet for [_1] students',
1245: $studentcount)."</h1>\n");
1246: } else {
1247: $r->print('<h1>'.
1248: &mt('Compiling Excel spreadsheet for 1 student').
1249: "</h1>\n");
1250: }
1251: $r->rflush();
1252: #
1253: # Initialize progress window
1254: %prog_state=&Apache::lonhtmlcommon::Create_PrgWin
1255: ($r,'Excel File Compilation Status',
1256: 'Excel File Compilation Progress', $studentcount);
1257: #
1258: &Apache::lonhtmlcommon::Update_PrgWin($r,\%prog_state,
1259: 'Processing first student');
1260: return;
1261: }
1262:
1263: sub excel_outputstudent {
1264: my ($r,$student) = @_;
1265: return if ($request_aborted);
1266: return if (! defined($excel_sheet));
1267: $cols_output=0;
1268: #
1269: # Write out student data
1270: my @to_show = &get_student_fields_to_show();
1271: foreach my $field (@to_show) {
1272: $excel_sheet->write($rows_output,$cols_output++,$student->{$field});
1273: }
1274: #
1275: # Get student assessment data
1276: my %StudentsData;
1277: my @tmp = &Apache::loncoursedata::get_current_state($student->{'username'},
1278: $student->{'domain'},
1279: undef,
1280: $ENV{'request.course.id'});
1281: if ((scalar @tmp > 0) && ($tmp[0] !~ /^error:/)) {
1282: %StudentsData = @tmp;
1283: }
1284: #
1285: # Write out sequence scores and totals data
1286: my %total_cell_translation;
1287: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
1288: $cols_output = $seq->{'Excel:startcol'};
1289: # Keep track of cells to translate in total cell
1290: $total_cell_translation{$seq->{'Excel:scorecell'}} =
1291: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1292: ($rows_output,$seq->{'Excel:scorecol'});
1293: #
1294: my ($performance,$performance_length,$score,$seq_max,$rawdata);
1295: if ($chosen_output->{'tries'} || $chosen_output->{'correct'}){
1296: ($performance,$performance_length,$score,$seq_max,$rawdata) =
1297: &StudentTriesOnSequence($student,\%StudentsData,
1298: $seq,'no');
1299: } else {
1300: ($performance,$performance_length,$score,$seq_max,$rawdata) =
1301: &StudentPerformanceOnSequence($student,\%StudentsData,
1302: $seq,'no');
1303: }
1304: if ($chosen_output->{'every_problem'}) {
1305: if ($chosen_output->{'correct'}) {
1306: # only indiciate if each item is correct or not
1307: foreach my $value (@$rawdata) {
1308: # nonzero means correct
1309: $value = 1 if ($value > 0);
1310: $excel_sheet->write($rows_output,$cols_output++,$value);
1311: }
1312: } else {
1313: foreach my $value (@$rawdata) {
1314: $excel_sheet->write($rows_output,$cols_output++,$value);
1315: }
1316: }
1317: }
1318: if ($chosen_output->{'sequence_sum'} &&
1319: $chosen_output->{'every_problem'}) {
1320: # Write a formula for the sum of this sequence
1321: my %replaceCells;
1322: $replaceCells{$seq->{'Excel:startcell'}} =
1323: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1324: ($rows_output,$seq->{'Excel:startcol'});
1325: $replaceCells{$seq->{'Excel:endcell'}} =
1326: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1327: ($rows_output,$seq->{'Excel:endcol'});
1328: # The undef is for the format
1329: if (scalar(keys(%replaceCells)) == 1) {
1330: $excel_sheet->repeat_formula($rows_output,$cols_output++,
1331: $seq->{'Excel:sum'},undef,
1332: %replaceCells,%replaceCells);
1333: } else {
1334: $excel_sheet->repeat_formula($rows_output,$cols_output++,
1335: $seq->{'Excel:sum'},undef,
1336: %replaceCells);
1337: }
1338: } elsif ($chosen_output->{'sequence_sum'}) {
1339: $excel_sheet->write($rows_output,$cols_output++,$score);
1340: }
1341: if ($chosen_output->{'sequence_max'}) {
1342: $excel_sheet->write($rows_output,$cols_output++,$seq_max);
1343: }
1344: }
1345: #
1346: if ($chosen_output->{'grand_total'}) {
1347: $excel_sheet->repeat_formula($rows_output,$cols_output++,
1348: $total_formula,undef,
1349: %total_cell_translation);
1350: }
1351: #
1352: # Bookkeeping
1353: $rows_output++;
1354: $cols_output=0;
1355: #
1356: # Update the progress window
1357: &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,'last student');
1358: return;
1359: }
1360:
1361: sub excel_finish {
1362: my ($r) = @_;
1363: return if ($request_aborted);
1364: return if (! defined($excel_sheet));
1365: #
1366: # Write the excel file
1367: $excel_workbook->close();
1368: my $c = $r->connection();
1369: #
1370: return if($c->aborted());
1371: #
1372: # Close the progress window
1373: &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
1374: #
1375: # Tell the user where to get their excel file
1376: $r->print('<br />'.
1377: '<a href="'.$filename.'">Your Excel spreadsheet.</a>'."\n");
1378: $r->rflush();
1379: return;
1380: }
1381:
1382: }
1383: #######################################################
1384: #######################################################
1385:
1386: =pod
1387:
1388: =head2 CSV output routines
1389:
1390: =item &csv_initialize($r)
1391:
1392: =item &csv_outputstudent($r,$student)
1393:
1394: =item &csv_finish($r)
1395:
1396: =cut
1397:
1398: #######################################################
1399: #######################################################
1400: {
1401:
1402: my $outputfile;
1403: my $filename;
1404: my $request_aborted;
1405: my %prog_state; # progress window state
1406:
1407: sub csv_initialize{
1408: my ($r) = @_;
1409: #
1410: # Clean up
1411: undef($outputfile);
1412: undef($filename);
1413: undef($request_aborted);
1414: undef(%prog_state);
1415: #
1416: # Deal with unimplemented requests
1417: $request_aborted = undef;
1418: if ($chosen_output->{'base'} =~ /final table/) {
1419: $r->print(<<END);
1420: <h2>Unable to Complete Request</h2>
1421: <p>
1422: The <b>Summary Table (Scores)</b> option is not available for non-HTML output.
1423: </p>
1424: END
1425: $request_aborted = 1;
1426: }
1427: return if ($request_aborted);
1428: #
1429: # Initialize progress window
1430: my $studentcount = scalar(@Apache::lonstatistics::Students);
1431: %prog_state=&Apache::lonhtmlcommon::Create_PrgWin
1432: ($r,'CSV File Compilation Status',
1433: 'CSV File Compilation Progress', $studentcount);
1434: #
1435: # Open a file
1436: $filename = '/prtspool/'.
1437: $ENV{'user.name'}.'_'.$ENV{'user.domain'}.'_'.
1438: time.'_'.rand(1000000000).'.csv';
1439: unless ($outputfile = Apache::File->new('>/home/httpd'.$filename)) {
1440: $r->log_error("Couldn't open $filename for output $!");
1441: $r->print("Problems occured in writing the csv file. ".
1442: "This error has been logged. ".
1443: "Please alert your LON-CAPA administrator.");
1444: $outputfile = undef;
1445: }
1446: #
1447: # Datestamp
1448: my $description = $ENV{'course.'.$ENV{'request.course.id'}.'.description'};
1449: print $outputfile '"'.&Apache::loncommon::csv_translate($description).'",'.
1450: '"'.&Apache::loncommon::csv_translate(scalar(localtime(time))).'"'.
1451: "\n";
1452: #
1453: # Print out the headings
1454: my $sequence_row = '';
1455: my $resource_row = undef;
1456: foreach my $field (&get_student_fields_to_show()) {
1457: $sequence_row .='"",';
1458: $resource_row .= '"'.&Apache::loncommon::csv_translate($field).'",';
1459: }
1460: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
1461: $sequence_row .= '"'.
1462: &Apache::loncommon::csv_translate($seq->{'title'}).'",';
1463: my $count = 0;
1464: if ($chosen_output->{'every_problem'}) {
1465: foreach my $res (@{$seq->{'contents'}}) {
1466: if ($res->{'type'} ne 'assessment' ||
1467: ! exists($res->{'parts'}) ||
1468: ref($res->{'parts'}) ne 'ARRAY' ||
1469: scalar(@{$res->{'parts'}}) < 1) {
1470: next;
1471: }
1472: foreach my $part (@{$res->{'parts'}}) {
1473: $resource_row .= '"'.
1474: &Apache::loncommon::csv_translate($res->{'title'}.
1475: ', Part '.$part
1476: ).'",';
1477: $count++;
1478: }
1479: }
1480: }
1481: $sequence_row.='"",'x$count;
1482: if ($chosen_output->{'sequence_sum'}) {
1483: if($chosen_output->{'correct'}) {
1484: $resource_row .= '"sum",';
1485: } else {
1486: $resource_row .= '"score",';
1487: }
1488: }
1489: if ($chosen_output->{'sequence_max'}) {
1490: $sequence_row.= '"",';
1491: $resource_row .= '"maximum possible",';
1492: }
1493: }
1494: if ($chosen_output->{'grand_total'}) {
1495: $sequence_row.= '"",';
1496: $resource_row.= '"Total",';
1497: }
1498: chomp($sequence_row);
1499: chomp($resource_row);
1500: print $outputfile $sequence_row."\n";
1501: print $outputfile $resource_row."\n";
1502: return;
1503: }
1504:
1505: sub csv_outputstudent {
1506: my ($r,$student) = @_;
1507: return if ($request_aborted);
1508: return if (! defined($outputfile));
1509: my $Str = '';
1510: #
1511: # Output student fields
1512: my @to_show = &get_student_fields_to_show();
1513: foreach my $field (@to_show) {
1514: $Str .= '"'.&Apache::loncommon::csv_translate($student->{$field}).'",';
1515: }
1516: #
1517: # Get student assessment data
1518: my %StudentsData;
1519: my @tmp = &Apache::loncoursedata::get_current_state($student->{'username'},
1520: $student->{'domain'},
1521: undef,
1522: $ENV{'request.course.id'});
1523: if ((scalar @tmp > 0) && ($tmp[0] !~ /^error:/)) {
1524: %StudentsData = @tmp;
1525: }
1526: #
1527: # Output performance data
1528: my $total = 0;
1529: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
1530: my ($performance,$performance_length,$score,$seq_max,$rawdata);
1531: if ($chosen_output->{'tries'}){
1532: ($performance,$performance_length,$score,$seq_max,$rawdata) =
1533: &StudentTriesOnSequence($student,\%StudentsData,
1534: $seq,'no');
1535: } else {
1536: ($performance,$performance_length,$score,$seq_max,$rawdata) =
1537: &StudentPerformanceOnSequence($student,\%StudentsData,
1538: $seq,'no');
1539: }
1540: if ($chosen_output->{'every_problem'}) {
1541: if ($chosen_output->{'correct'}) {
1542: $score = 0;
1543: # Deal with number of parts correct data
1544: $Str .= '"'.join('","',( map { if ($_>0) {
1545: $score += 1;
1546: 1;
1547: } else {
1548: 0;
1549: }
1550: } @$rawdata)).'",';
1551: } else {
1552: $Str .= '"'.join('","',(@$rawdata)).'",';
1553: }
1554: }
1555: if ($chosen_output->{'sequence_sum'}) {
1556: $Str .= '"'.$score.'",';
1557: }
1558: if ($chosen_output->{'sequence_max'}) {
1559: $Str .= '"'.$seq_max.'",';
1560: }
1561: $total+=$score;
1562: }
1563: if ($chosen_output->{'grand_total'}) {
1564: $Str .= '"'.$total.'",';
1565: }
1566: chop($Str);
1567: $Str .= "\n";
1568: print $outputfile $Str;
1569: #
1570: # Update the progress window
1571: &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,'last student');
1572: return;
1573: }
1574:
1575: sub csv_finish {
1576: my ($r) = @_;
1577: return if ($request_aborted);
1578: return if (! defined($outputfile));
1579: close($outputfile);
1580: #
1581: my $c = $r->connection();
1582: return if ($c->aborted());
1583: #
1584: # Close the progress window
1585: &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
1586: #
1587: # Tell the user where to get their csv file
1588: $r->print('<br />'.
1589: '<a href="'.$filename.'">'.&mt('Your csv file.').'</a>'."\n");
1590: $r->rflush();
1591: return;
1592:
1593: }
1594:
1595: }
1596:
1597: #######################################################
1598: #######################################################
1599:
1600: =pod
1601:
1602: =item &StudentTriesOnSequence()
1603:
1604: Inputs:
1605:
1606: =over 4
1607:
1608: =item $student
1609:
1610: =item $studentdata Hash ref to all student data
1611:
1612: =item $seq Hash ref, the sequence we are working on
1613:
1614: =item $links if defined we will output links to each resource.
1615:
1616: =back
1617:
1618: =cut
1619:
1620: #######################################################
1621: #######################################################
1622: sub StudentTriesOnSequence {
1623: my ($student,$studentdata,$seq,$links) = @_;
1624: $links = 'no' if (! defined($links));
1625: my $Str = '';
1626: my ($sum,$max) = (0,0);
1627: my $performance_length = 0;
1628: my @TriesData = ();
1629: my $tries;
1630: foreach my $resource (@{$seq->{'contents'}}) {
1631: next if ($resource->{'type'} ne 'assessment');
1632: my $resource_data = $studentdata->{$resource->{'symb'}};
1633: my $value = '';
1634: foreach my $partnum (@{$resource->{'parts'}}) {
1635: $tries = undef;
1636: $max++;
1637: $performance_length++;
1638: my $symbol = ' '; # default to space
1639: #
1640: my $awarded = 0;
1641: if (exists($resource_data->{'resource.'.$partnum.'.awarded'})) {
1642: $awarded = $resource_data->{'resource.'.$partnum.'.awarded'};
1643: $awarded = 0 if (! $awarded);
1644: }
1645: #
1646: my $status = '';
1647: if (exists($resource_data->{'resource.'.$partnum.'.solved'})) {
1648: $status = $resource_data->{'resource.'.$partnum.'.solved'};
1649: }
1650: #
1651: my $tries = 0;
1652: if(exists($resource_data->{'resource.'.$partnum.'.tries'})) {
1653: $tries = $resource_data->{'resource.'.$partnum.'.tries'};
1654: }
1655: #
1656: if ($awarded > 0) {
1657: # The student has gotten the problem correct to some degree
1658: if ($status eq 'excused') {
1659: $symbol = 'x';
1660: $max--;
1661: } elsif ($status eq 'correct_by_override') {
1662: $symbol = '+';
1663: $sum++;
1664: } elsif ($tries > 0) {
1665: if ($tries > 9) {
1666: $symbol = '*';
1667: } else {
1668: $symbol = $tries;
1669: }
1670: $sum++;
1671: } else {
1672: $symbol = '+';
1673: $sum++;
1674: }
1675: } else {
1676: # The student has the problem incorrect or it is ungraded
1677: if ($status eq 'excused') {
1678: $symbol = 'x';
1679: $max--;
1680: } elsif ($status eq 'incorrect_by_override') {
1681: $symbol = '-';
1682: } elsif ($status eq 'ungraded_attempted') {
1683: $symbol = '#';
1684: } elsif ($status eq 'incorrect_attempted' ||
1685: $tries > 0) {
1686: $symbol = '.';
1687: } else {
1688: # Problem is wrong and has not been attempted.
1689: $symbol=' ';
1690: }
1691: }
1692: #
1693: if (! defined($tries)) {
1694: $tries = $symbol;
1695: }
1696: push (@TriesData,$tries);
1697: #
1698: if ( ($links eq 'yes' && $symbol ne ' ') ||
1699: ($links eq 'all')) {
1700: if (length($symbol) > 1) {
1701: &Apache::lonnet::logthis('length of symbol "'.$symbol.'" > 1');
1702: }
1703: $symbol = '<a href="/adm/grades'.
1704: '?symb='.&Apache::lonnet::escape($resource->{'symb'}).
1705: '&student='.$student->{'username'}.
1706: '&userdom='.$student->{'domain'}.
1707: '&command=submission">'.$symbol.'</a>';
1708: }
1709: $value .= $symbol;
1710: }
1711: $Str .= $value;
1712: }
1713: if ($seq->{'randompick'}) {
1714: $max = $seq->{'randompick'};
1715: }
1716: return ($Str,$performance_length,$sum,$max,\@TriesData);
1717: }
1718:
1719: #######################################################
1720: #######################################################
1721:
1722: =pod
1723:
1724: =item &StudentPerformanceOnSequence()
1725:
1726: Inputs:
1727:
1728: =over 4
1729:
1730: =item $student
1731:
1732: =item $studentdata Hash ref to all student data
1733:
1734: =item $seq Hash ref, the sequence we are working on
1735:
1736: =item $links if defined we will output links to each resource.
1737:
1738: =back
1739:
1740: =cut
1741:
1742: #######################################################
1743: #######################################################
1744: sub StudentPerformanceOnSequence {
1745: my ($student,$studentdata,$seq,$links) = @_;
1746: $links = 'no' if (! defined($links));
1747: my $Str = ''; # final result string
1748: my ($score,$max) = (0,0);
1749: my $performance_length = 0;
1750: my $symbol;
1751: my @ScoreData = ();
1752: my $partscore;
1753: foreach my $resource (@{$seq->{'contents'}}) {
1754: next if ($resource->{'type'} ne 'assessment');
1755: my $resource_data = $studentdata->{$resource->{'symb'}};
1756: foreach my $part (@{$resource->{'parts'}}) {
1757: $partscore = undef;
1758: my $weight = &Apache::lonnet::EXT('resource.'.$part.'.weight',
1759: $resource->{'symb'},
1760: $student->{'domain'},
1761: $student->{'username'},
1762: $student->{'section'});
1763: if (!defined($weight) || ($weight eq '')) {
1764: $weight=1;
1765: }
1766: #
1767: $max += $weight; # see the 'excused' branch below...
1768: $performance_length++; # one character per part
1769: $symbol = ' '; # default to space
1770: #
1771: my $awarded = 0;
1772: if (exists($resource_data->{'resource.'.$part.'.awarded'})) {
1773: $awarded = $resource_data->{'resource.'.$part.'.awarded'};
1774: $awarded = 0 if (! $awarded);
1775: }
1776: #
1777: $partscore = $weight*$awarded;
1778: $score += $partscore;
1779: $symbol = $partscore;
1780: if (abs($symbol - sprintf("%.0f",$symbol)) < 0.001) {
1781: $symbol = sprintf("%.0f",$symbol);
1782: }
1783: if (length($symbol) > 1) {
1784: $symbol = '*';
1785: }
1786: if (exists($resource_data->{'resource.'.$part.'.solved'})) {
1787: my $status = $resource_data->{'resource.'.$part.'.solved'};
1788: if ($status eq 'excused') {
1789: $symbol = 'x';
1790: $max -= $weight; # Do not count 'excused' problems.
1791: }
1792: } else {
1793: # Unsolved. Did they try?
1794: if (exists($resource_data->{'resource.'.$part.'.tries'})){
1795: $symbol = '.';
1796: } else {
1797: $symbol = ' ';
1798: }
1799: }
1800: #
1801: if (! defined($partscore)) {
1802: $partscore = $symbol;
1803: }
1804: push (@ScoreData,$partscore);
1805: #
1806: if ( ($links eq 'yes' && $symbol ne ' ') || ($links eq 'all')) {
1807: $symbol = '<a href="/adm/grades'.
1808: '?symb='.&Apache::lonnet::escape($resource->{'symb'}).
1809: '&student='.$student->{'username'}.
1810: '&userdom='.$student->{'domain'}.
1811: '&command=submission">'.$symbol.'</a>';
1812: }
1813: $Str .= $symbol;
1814: }
1815: }
1816: return ($Str,$performance_length,$score,$max,\@ScoreData);
1817: }
1818:
1819: #######################################################
1820: #######################################################
1821:
1822: =pod
1823:
1824: =item &CreateLegend()
1825:
1826: This function returns a formatted string containing the legend for the
1827: chart. The legend describes the symbols used to represent grades for
1828: problems.
1829:
1830: =cut
1831:
1832: #######################################################
1833: #######################################################
1834: sub CreateLegend {
1835: my $Str = "<p><pre>".
1836: " 1 correct by student in 1 try\n".
1837: " 7 correct by student in 7 tries\n".
1838: " * correct by student in more than 9 tries\n".
1839: " + correct by hand grading or override\n".
1840: " - incorrect by override\n".
1841: " . incorrect attempted\n".
1842: " # ungraded attempted\n".
1843: " not attempted (blank field)\n".
1844: " x excused".
1845: "</pre><p>";
1846: return $Str;
1847: }
1848:
1849: #######################################################
1850: #######################################################
1851:
1852: =pod
1853:
1854: =back
1855:
1856: =cut
1857:
1858: #######################################################
1859: #######################################################
1860:
1861: 1;
1862:
1863: __END__
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