1: # The LearningOnline Network with CAPA
2: #
3: # $Id: lonstudentassessment.pm,v 1.98 2004/03/10 18:50:38 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 separated 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'} && $score ne ' ') {
719: $ratio .= sprintf("%3d",$score);
720: } elsif($chosen_output->{'sequence_sum'}) {
721: $ratio .= ' 'x3;
722: }
723: if ($chosen_output->{'sequence_max'}) {
724: if ($chosen_output->{'sequence_sum'}) {
725: $ratio .= '/';
726: }
727: $ratio .= sprintf("%3d",$seq_max);
728: }
729: #
730: if (! $chosen_output->{'every_problem'}) {
731: $performance = '';
732: $performance_length=0;
733: }
734: $performance .= ' 'x($seq->{'width_total'}-$performance_length-$seq->{'width_sum'}).
735: $ratio;
736: #
737: $Str .= $performance.$padding;
738: #
739: $studentstats->{$seq->{'symb'}}->{'score'}= $score;
740: $studentstats->{$seq->{'symb'}}->{'max'} = $seq_max;
741: }
742: #
743: # Total it up and store the statistics info.
744: my ($score,$max);
745: while (my ($symb,$seq_stats) = each (%{$studentstats})) {
746: $Statistics->{$symb}->{'score'} += $seq_stats->{'score'};
747: if ($Statistics->{$symb}->{'max'} < $seq_stats->{'max'}) {
748: $Statistics->{$symb}->{'max'} = $seq_stats->{'max'};
749: }
750: if ($seq_stats->{'score'} ne ' ') {
751: $score += $seq_stats->{'score'};
752: $Statistics->{$symb}->{'num_students'}++;
753: }
754: $max += $seq_stats->{'max'};
755: }
756: if (! defined($score)) {
757: $score = ' 'x3;
758: }
759: $Str .= ' '.' 'x(length($max)-length($score)).$score.'/'.$max;
760: $Str .= " \n";
761: #
762: $r->print($Str);
763: #
764: $r->rflush();
765: return;
766: }
767:
768: sub html_finish {
769: my ($r) = @_;
770: #
771: # Check for suppressed output and close the progress window if so
772: $r->print("</pre>\n");
773: if ($chosen_output->{'summary_table'}) {
774: if ($single_student_mode) {
775: $r->print(&SingleStudentTotal());
776: } else {
777: $r->print(&StudentAverageTotal());
778: }
779: }
780: $r->rflush();
781: return;
782: }
783:
784: sub StudentAverageTotal {
785: my $Str = "<h3>Summary Tables</h3>\n";
786: # my $max_students;
787: # my $total_ave = 0;
788: # my $total_max = 0;
789: $Str .= '<table border=2 cellspacing="1">'."\n";
790: $Str .= "<tr><th>Title</th><th>Average</th><th>Maximum</th></tr>\n";
791: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
792: my $ave;
793: my $num_students = $Statistics->{$seq->{'symb'}}->{'num_students'};
794: # if ($num_students > $max_students) {
795: # $max_students = $num_students;
796: # }
797: if ($num_students > 0) {
798: $ave = int(100*
799: ($Statistics->{$seq->{'symb'}}->{'score'}/$num_students)
800: )/100;
801: } else {
802: $ave = 0;
803: }
804: # $total_ave += $ave;
805: my $max = $Statistics->{$seq->{'symb'}}->{'max'};
806: # $total_max += $max;
807: $ave = sprintf("%.2f",$ave);
808: $Str .= '<tr><td>'.$seq->{'title'}.'</td>'.
809: '<td align="right">'.$ave.' </td>'.
810: '<td align="right">'.$max.' '.'</td></tr>'."\n";
811: }
812: # $total_ave = sprintf('%.2f',$total_ave); # only two digit
813: $Str .= "</table>\n";
814: # $Str .= '<table border=2 cellspacing="1">'."\n";
815: # $Str .= '<tr><th>Number of Students</th><th>Average</th>'.
816: # "<th>Maximum</th></tr>\n";
817: # $Str .= '<tr>'.
818: # '<td align="right">'.$max_students.'</td>'.
819: # '<td align="right">'.$total_ave.' '.'</td>'.
820: # '<td align="right">'.$total_max.' '.'</td>';
821: # $Str .= "</table>\n";
822: return $Str;
823: }
824:
825: sub SingleStudentTotal {
826: my $student = &Apache::lonstatistics::current_student();
827: my $Str = "<h3>Summary table for ".$student->{'fullname'}." ".
828: $student->{'username'}.'@'.$student->{'domain'}."</h3>\n";
829: $Str .= '<table border=2 cellspacing="1">'."\n";
830: $Str .=
831: "<tr><th>Sequence or Folder</th><th>Score</th><th>Maximum</th></tr>\n";
832: my $total = 0;
833: my $total_max = 0;
834: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
835: my $value = $Statistics->{$seq->{'symb'}}->{'score'};
836: my $max = $Statistics->{$seq->{'symb'}}->{'max'};
837: $Str .= '<tr><td>'.$seq->{'title'}.'</td>'.
838: '<td align="right">'.$value.'</td>'.
839: '<td align="right">'.$max.'</td></tr>'."\n";
840: $total += $value;
841: $total_max +=$max;
842: }
843: $Str .= '<tr><td><b>Total</b></td>'.
844: '<td align="right">'.$total.'</td>'.
845: '<td align="right">'.$total_max."</td></tr>\n";
846: $Str .= "</table>\n";
847: return $Str;
848: }
849:
850: }
851:
852: #######################################################
853: #######################################################
854:
855: =pod
856:
857: =head2 EXCEL subroutines
858:
859: =item &excel_initialize($r)
860:
861: =item &excel_outputstudent($r,$student)
862:
863: =item &excel_finish($r)
864:
865: =cut
866:
867: #######################################################
868: #######################################################
869: {
870:
871: my $excel_sheet;
872: my $excel_workbook;
873:
874: my $filename;
875: my $rows_output;
876: my $cols_output;
877:
878: my %prog_state; # progress window state
879: my $request_aborted;
880:
881: my $total_formula;
882:
883: sub excel_initialize {
884: my ($r) = @_;
885: #
886: undef ($excel_sheet);
887: undef ($excel_workbook);
888: undef ($filename);
889: undef ($rows_output);
890: undef ($cols_output);
891: undef (%prog_state);
892: undef ($request_aborted);
893: undef ($total_formula);
894: #
895: my $total_columns = scalar(&get_student_fields_to_show());
896: my $num_students = scalar(@Apache::lonstatistics::Students);
897: #
898: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
899: if ($chosen_output->{'every_problem'}) {
900: $total_columns += $seq->{'num_assess_parts'};
901: }
902: # Add 2 because we need a 'sequence_sum' and 'total' column for each
903: $total_columns += 2;
904: }
905: if ($chosen_output->{'base'} eq 'tries' && $total_columns > 255) {
906: $r->print(<<END);
907: <h2>Unable to Complete Request</h2>
908: <p>
909: LON-CAPA is unable to produce your Excel spreadsheet because your selections
910: will result in more than 255 columns. Excel allows only 255 columns in a
911: spreadsheet.
912: </p><p>
913: You may consider reducing the number of <b>Sequences or Folders</b> you
914: have selected.
915: </p><p>
916: LON-CAPA can produce <b>CSV</b> files of this data or Excel files of the
917: summary data (<b>Parts Correct</b> or <b>Parts Correct & Totals</b>).
918: </p>
919: END
920: $request_aborted = 1;
921: }
922: if ($chosen_output->{'base'} eq 'scores' && $total_columns > 255) {
923: $r->print(<<END);
924: <h2>Unable to Complete Request</h2>
925: <p>
926: LON-CAPA is unable to produce your Excel spreadsheet because your selections
927: will result in more than 255 columns. Excel allows only 255 columns in a
928: spreadsheet.
929: </p><p>
930: You may consider reducing the number of <b>Sequences or Folders</b> you
931: have selected.
932: </p><p>
933: LON-CAPA can produce <b>CSV</b> files of this data or Excel files of the
934: <b>Scores Summary</b> data.
935: </p>
936: END
937: $request_aborted = 1;
938: }
939: return if ($request_aborted);
940: #
941: $filename = '/prtspool/'.
942: $ENV{'user.name'}.'_'.$ENV{'user.domain'}.'_'.
943: time.'_'.rand(1000000000).'.xls';
944: #
945: $excel_workbook = undef;
946: $excel_sheet = undef;
947: #
948: $rows_output = 0;
949: $cols_output = 0;
950: #
951: # Determine rows
952: my $header_row = $rows_output++;
953: my $description_row = $rows_output++;
954: $rows_output++; # blank row
955: my $summary_header_row;
956: if ($chosen_output->{'summary_table'}) {
957: $summary_header_row = $rows_output++;
958: $rows_output+= scalar(&Apache::lonstatistics::Sequences_with_Assess());
959: $rows_output++;
960: }
961: my $sequence_name_row = $rows_output++;
962: my $resource_name_row = $rows_output++;
963: my $maximum_data_row = $rows_output++;
964: if (! $chosen_output->{'maximum_row'}) {
965: $rows_output--;
966: }
967: my $first_data_row = $rows_output++;
968: #
969: # Create sheet
970: $excel_workbook = Spreadsheet::WriteExcel->new('/home/httpd'.$filename);
971: #
972: # Check for errors
973: if (! defined($excel_workbook)) {
974: $r->log_error("Error creating excel spreadsheet $filename: $!");
975: $r->print("Problems creating new Excel file. ".
976: "This error has been logged. ".
977: "Please alert your LON-CAPA administrator");
978: return ;
979: }
980: #
981: # The excel spreadsheet stores temporary data in files, then put them
982: # together. If needed we should be able to disable this (memory only).
983: # The temporary directory must be specified before calling 'addworksheet'.
984: # File::Temp is used to determine the temporary directory.
985: $excel_workbook->set_tempdir($Apache::lonnet::tmpdir);
986: #
987: my $format = &Apache::loncommon::define_excel_formats($excel_workbook);
988: #
989: # Add a worksheet
990: my $sheetname = $ENV{'course.'.$ENV{'request.course.id'}.'.description'};
991: $sheetname = &Apache::loncommon::clean_excel_name($sheetname);
992: $excel_sheet = $excel_workbook->addworksheet($sheetname);
993: #
994: # Put the course description in the header
995: $excel_sheet->write($header_row,$cols_output++,
996: $ENV{'course.'.$ENV{'request.course.id'}.'.description'},
997: $format->{'h1'});
998: $cols_output += 3;
999: #
1000: # Put a description of the sections listed
1001: my $sectionstring = '';
1002: my @Sections = @Apache::lonstatistics::SelectedSections;
1003: if (scalar(@Sections) > 1) {
1004: if (scalar(@Sections) > 2) {
1005: my $last = pop(@Sections);
1006: $sectionstring = "Sections ".join(', ',@Sections).', and '.$last;
1007: } else {
1008: $sectionstring = "Sections ".join(' and ',@Sections);
1009: }
1010: } else {
1011: if ($Sections[0] eq 'all') {
1012: $sectionstring = "All sections";
1013: } else {
1014: $sectionstring = "Section ".$Sections[0];
1015: }
1016: }
1017: $excel_sheet->write($header_row,$cols_output++,$sectionstring,
1018: $format->{'h3'});
1019: $cols_output += scalar(@Sections);
1020: #
1021: # Put the date in there too
1022: $excel_sheet->write($header_row,$cols_output++,
1023: 'Compiled on '.localtime(time),$format->{'h3'});
1024: #
1025: $cols_output = 0;
1026: $excel_sheet->write($description_row,$cols_output++,
1027: $chosen_output->{'shortdesc'},
1028: $format->{'h3'});
1029: ##############################################
1030: # Output headings for the raw data
1031: ##############################################
1032: #
1033: # Add the student headers
1034: $cols_output = 0;
1035: foreach my $field (&get_student_fields_to_show()) {
1036: $excel_sheet->write($resource_name_row,$cols_output++,$field,
1037: $format->{'bold'});
1038: }
1039: #
1040: # Add the remaining column headers
1041: my $total_formula_string = '=0';
1042: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
1043: $excel_sheet->write($sequence_name_row,,
1044: $cols_output,$seq->{'title'},$format->{'bold'});
1045: # Determine starting cell
1046: $seq->{'Excel:startcell'}=
1047: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1048: ($first_data_row,$cols_output);
1049: $seq->{'Excel:startcol'}=$cols_output;
1050: my $count = 0;
1051: if ($chosen_output->{'every_problem'}) {
1052: # Put the names of the problems and parts into the sheet
1053: foreach my $res (@{$seq->{'contents'}}) {
1054: if ($res->{'type'} ne 'assessment' ||
1055: ! exists($res->{'parts'}) ||
1056: ref($res->{'parts'}) ne 'ARRAY' ||
1057: scalar(@{$res->{'parts'}}) < 1) {
1058: next;
1059: }
1060: if (scalar(@{$res->{'parts'}}) > 1) {
1061: foreach my $part (@{$res->{'parts'}}) {
1062: $excel_sheet->write($resource_name_row,
1063: $cols_output++,
1064: $res->{'title'}.' part '.$part,
1065: $format->{'bold'});
1066: }
1067: } else {
1068: $excel_sheet->write($resource_name_row,
1069: $cols_output++,
1070: $res->{'title'},$format->{'bold'});
1071: }
1072: $count++;
1073: }
1074: }
1075: # Determine ending cell
1076: if ($count <= 1) {
1077: $seq->{'Excel:endcell'} = $seq->{'Excel:startcell'};
1078: $seq->{'Excel:endcol'} = $seq->{'Excel:startcol'};
1079: } else {
1080: $seq->{'Excel:endcell'} =
1081: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1082: ($first_data_row,$cols_output-1);
1083: $seq->{'Excel:endcol'} = $cols_output-1;
1084: }
1085: # Create the formula for summing up this sequence
1086: if (! exists($seq->{'Excel:endcell'}) ||
1087: ! defined($seq->{'Excel:endcell'})) {
1088: $seq->{'Excel:endcell'} = $seq->{'Excel:startcell'};
1089: }
1090: $seq->{'Excel:sum'}= $excel_sheet->store_formula
1091: ('=SUM('.$seq->{'Excel:startcell'}.
1092: ':'.$seq->{'Excel:endcell'}.')');
1093: # Determine cell the score is held in
1094: $seq->{'Excel:scorecell'} =
1095: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1096: ($first_data_row,$cols_output);
1097: $seq->{'Excel:scorecol'}=$cols_output;
1098: if ($chosen_output->{'base'} eq 'parts correct total') {
1099: $excel_sheet->write($resource_name_row,$cols_output++,
1100: 'parts correct',
1101: $format->{'bold'});
1102: } elsif ($chosen_output->{'sequence_sum'}) {
1103: if ($chosen_output->{'correct'}) {
1104: # Only reporting the number correct, so do not call it score
1105: $excel_sheet->write($resource_name_row,$cols_output++,
1106: 'sum',
1107: $format->{'bold'});
1108: } else {
1109: $excel_sheet->write($resource_name_row,$cols_output++,
1110: 'score',
1111: $format->{'bold'});
1112: }
1113: }
1114: #
1115: $total_formula_string.='+'.
1116: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1117: ($first_data_row,$cols_output-1);
1118: if ($chosen_output->{'sequence_max'}) {
1119: $excel_sheet->write($resource_name_row,$cols_output++,
1120: 'maximum',
1121: $format->{'bold'});
1122: }
1123: }
1124: if ($chosen_output->{'grand_total'}) {
1125: $excel_sheet->write($resource_name_row,$cols_output++,'Total',
1126: $format->{'bold'});
1127: }
1128: $total_formula = $excel_sheet->store_formula($total_formula_string);
1129: ##############################################
1130: # Output a row for MAX, if appropriate
1131: ##############################################
1132: if ($chosen_output->{'maximum_row'}) {
1133: $cols_output = 0;
1134: foreach my $field (&get_student_fields_to_show()) {
1135: if ($field eq 'username' || $field eq 'fullname' ||
1136: $field eq 'id') {
1137: $excel_sheet->write($maximum_data_row,$cols_output++,'Maximum',
1138: $format->{'bold'});
1139: } else {
1140: $excel_sheet->write($maximum_data_row,$cols_output++,'');
1141: }
1142: }
1143: #
1144: # Add the maximums for each sequence or assessment
1145: my %total_cell_translation;
1146: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
1147: $cols_output=$seq->{'Excel:startcol'};
1148: $total_cell_translation{$seq->{'Excel:scorecell'}} =
1149: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1150: ($maximum_data_row,$seq->{'Excel:scorecol'});
1151: my $weight;
1152: my $max = 0;
1153: foreach my $resource (@{$seq->{'contents'}}) {
1154: next if ($resource->{'type'} ne 'assessment');
1155: foreach my $part (@{$resource->{'parts'}}) {
1156: $weight = 1;
1157: if ($chosen_output->{'scores'}) {
1158: $weight = &Apache::lonnet::EXT
1159: ('resource.'.$part.'.weight',$resource->{'symb'},
1160: undef,undef,undef);
1161: if (!defined($weight) || ($weight eq '')) {
1162: $weight=1;
1163: }
1164: }
1165: if ($chosen_output->{'scores'} &&
1166: $chosen_output->{'every_problem'}) {
1167: $excel_sheet->write($maximum_data_row,$cols_output++,
1168: $weight);
1169: }
1170: $max += $weight;
1171: }
1172: }
1173: #
1174: if ($chosen_output->{'sequence_sum'} &&
1175: $chosen_output->{'every_problem'}) {
1176: my %replaceCells;
1177: $replaceCells{$seq->{'Excel:startcell'}} =
1178: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1179: ($maximum_data_row,$seq->{'Excel:startcol'});
1180: $replaceCells{$seq->{'Excel:endcell'}} =
1181: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1182: ($maximum_data_row,$seq->{'Excel:endcol'});
1183: $excel_sheet->repeat_formula($maximum_data_row,$cols_output++,
1184: $seq->{'Excel:sum'},undef,
1185: %replaceCells);
1186: } elsif ($chosen_output->{'sequence_sum'}) {
1187: $excel_sheet->write($maximum_data_row,$cols_output++,$max);
1188: }
1189: if ($chosen_output->{'sequence_max'}) {
1190: $excel_sheet->write($maximum_data_row,$cols_output++,$max);
1191: }
1192: #
1193: }
1194: if ($chosen_output->{'grand_total'}) {
1195: $excel_sheet->repeat_formula($maximum_data_row,$cols_output++,
1196: $total_formula,undef,
1197: %total_cell_translation);
1198: }
1199: } # End of MAXIMUM row output if ($chosen_output->{'maximum_row'}) {
1200: $rows_output = $first_data_row;
1201: ##############################################
1202: # Output summary table, which actually is above the sequence name row.
1203: ##############################################
1204: if ($chosen_output->{'summary_table'}) {
1205: $cols_output = 0;
1206: $excel_sheet->write($summary_header_row,$cols_output++,
1207: 'Summary Table',$format->{'bold'});
1208: if ($chosen_output->{'maximum_row'}) {
1209: $excel_sheet->write($summary_header_row,$cols_output++,
1210: 'Maximum',$format->{'bold'});
1211: }
1212: $excel_sheet->write($summary_header_row,$cols_output++,
1213: 'Average',$format->{'bold'});
1214: $excel_sheet->write($summary_header_row,$cols_output++,
1215: 'Median',$format->{'bold'});
1216: $excel_sheet->write($summary_header_row,$cols_output++,
1217: 'Std Dev',$format->{'bold'});
1218: my $row = $summary_header_row+1;
1219: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
1220: $cols_output = 0;
1221: $excel_sheet->write($row,$cols_output++,
1222: $seq->{'title'},
1223: $format->{'bold'});
1224: if ($chosen_output->{'maximum_row'}) {
1225: $excel_sheet->write
1226: ($row,$cols_output++,
1227: '='.
1228: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1229: ($maximum_data_row,$seq->{'Excel:scorecol'})
1230: );
1231: }
1232: my $range =
1233: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1234: ($first_data_row,$seq->{'Excel:scorecol'}).
1235: ':'.
1236: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1237: ($first_data_row+$num_students-1,$seq->{'Excel:scorecol'});
1238: $excel_sheet->write($row,$cols_output++,
1239: '=AVERAGE('.$range.')');
1240: $excel_sheet->write($row,$cols_output++,
1241: '=MEDIAN('.$range.')');
1242: $excel_sheet->write($row,$cols_output++,
1243: '=STDEV('.$range.')');
1244: $row++;
1245: }
1246: }
1247: ##############################################
1248: # Take care of non-excel initialization
1249: ##############################################
1250: #
1251: # Let the user know what we are doing
1252: my $studentcount = scalar(@Apache::lonstatistics::Students);
1253: if ($ENV{'form.SelectedStudent'}) {
1254: $studentcount = '1';
1255: }
1256: if ($studentcount > 1) {
1257: $r->print('<h1>'.&mt('Compiling Excel spreadsheet for [_1] students',
1258: $studentcount)."</h1>\n");
1259: } else {
1260: $r->print('<h1>'.
1261: &mt('Compiling Excel spreadsheet for 1 student').
1262: "</h1>\n");
1263: }
1264: $r->rflush();
1265: #
1266: # Initialize progress window
1267: %prog_state=&Apache::lonhtmlcommon::Create_PrgWin
1268: ($r,'Excel File Compilation Status',
1269: 'Excel File Compilation Progress', $studentcount);
1270: #
1271: &Apache::lonhtmlcommon::Update_PrgWin($r,\%prog_state,
1272: 'Processing first student');
1273: return;
1274: }
1275:
1276: sub excel_outputstudent {
1277: my ($r,$student) = @_;
1278: return if ($request_aborted);
1279: return if (! defined($excel_sheet));
1280: $cols_output=0;
1281: #
1282: # Write out student data
1283: my @to_show = &get_student_fields_to_show();
1284: foreach my $field (@to_show) {
1285: $excel_sheet->write($rows_output,$cols_output++,$student->{$field});
1286: }
1287: #
1288: # Get student assessment data
1289: my %StudentsData;
1290: my @tmp = &Apache::loncoursedata::get_current_state($student->{'username'},
1291: $student->{'domain'},
1292: undef,
1293: $ENV{'request.course.id'});
1294: if ((scalar @tmp > 0) && ($tmp[0] !~ /^error:/)) {
1295: %StudentsData = @tmp;
1296: }
1297: #
1298: # Write out sequence scores and totals data
1299: my %total_cell_translation;
1300: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
1301: $cols_output = $seq->{'Excel:startcol'};
1302: # Keep track of cells to translate in total cell
1303: $total_cell_translation{$seq->{'Excel:scorecell'}} =
1304: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1305: ($rows_output,$seq->{'Excel:scorecol'});
1306: #
1307: my ($performance,$performance_length,$score,$seq_max,$rawdata);
1308: if ($chosen_output->{'tries'} || $chosen_output->{'correct'}){
1309: ($performance,$performance_length,$score,$seq_max,$rawdata) =
1310: &StudentTriesOnSequence($student,\%StudentsData,
1311: $seq,'no');
1312: } else {
1313: ($performance,$performance_length,$score,$seq_max,$rawdata) =
1314: &StudentPerformanceOnSequence($student,\%StudentsData,
1315: $seq,'no');
1316: }
1317: if ($chosen_output->{'every_problem'}) {
1318: if ($chosen_output->{'correct'}) {
1319: # only indiciate if each item is correct or not
1320: foreach my $value (@$rawdata) {
1321: # nonzero means correct
1322: $value = 1 if ($value > 0);
1323: $excel_sheet->write($rows_output,$cols_output++,$value);
1324: }
1325: } else {
1326: foreach my $value (@$rawdata) {
1327: if ($score eq ' ' || !defined($value)) {
1328: $cols_output++;
1329: } else {
1330: $excel_sheet->write($rows_output,$cols_output++,
1331: $value);
1332: }
1333: }
1334: }
1335: }
1336: if ($chosen_output->{'sequence_sum'} &&
1337: $chosen_output->{'every_problem'}) {
1338: # Write a formula for the sum of this sequence
1339: my %replaceCells;
1340: $replaceCells{$seq->{'Excel:startcell'}} =
1341: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1342: ($rows_output,$seq->{'Excel:startcol'});
1343: $replaceCells{$seq->{'Excel:endcell'}} =
1344: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1345: ($rows_output,$seq->{'Excel:endcol'});
1346: # The undef is for the format
1347: if (scalar(keys(%replaceCells)) == 1) {
1348: $excel_sheet->repeat_formula($rows_output,$cols_output++,
1349: $seq->{'Excel:sum'},undef,
1350: %replaceCells,%replaceCells);
1351: } else {
1352: $excel_sheet->repeat_formula($rows_output,$cols_output++,
1353: $seq->{'Excel:sum'},undef,
1354: %replaceCells);
1355: }
1356: } elsif ($chosen_output->{'sequence_sum'}) {
1357: if ($score eq ' ') {
1358: $cols_output++;
1359: } else {
1360: $excel_sheet->write($rows_output,$cols_output++,$score);
1361: }
1362: }
1363: if ($chosen_output->{'sequence_max'}) {
1364: $excel_sheet->write($rows_output,$cols_output++,$seq_max);
1365: }
1366: }
1367: #
1368: if ($chosen_output->{'grand_total'}) {
1369: $excel_sheet->repeat_formula($rows_output,$cols_output++,
1370: $total_formula,undef,
1371: %total_cell_translation);
1372: }
1373: #
1374: # Bookkeeping
1375: $rows_output++;
1376: $cols_output=0;
1377: #
1378: # Update the progress window
1379: &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,'last student');
1380: return;
1381: }
1382:
1383: sub excel_finish {
1384: my ($r) = @_;
1385: return if ($request_aborted);
1386: return if (! defined($excel_sheet));
1387: #
1388: # Write the excel file
1389: $excel_workbook->close();
1390: my $c = $r->connection();
1391: #
1392: return if($c->aborted());
1393: #
1394: # Close the progress window
1395: &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
1396: #
1397: # Tell the user where to get their excel file
1398: $r->print('<br />'.
1399: '<a href="'.$filename.'">Your Excel spreadsheet.</a>'."\n");
1400: $r->rflush();
1401: return;
1402: }
1403:
1404: }
1405: #######################################################
1406: #######################################################
1407:
1408: =pod
1409:
1410: =head2 CSV output routines
1411:
1412: =item &csv_initialize($r)
1413:
1414: =item &csv_outputstudent($r,$student)
1415:
1416: =item &csv_finish($r)
1417:
1418: =cut
1419:
1420: #######################################################
1421: #######################################################
1422: {
1423:
1424: my $outputfile;
1425: my $filename;
1426: my $request_aborted;
1427: my %prog_state; # progress window state
1428:
1429: sub csv_initialize{
1430: my ($r) = @_;
1431: #
1432: # Clean up
1433: undef($outputfile);
1434: undef($filename);
1435: undef($request_aborted);
1436: undef(%prog_state);
1437: #
1438: # Deal with unimplemented requests
1439: $request_aborted = undef;
1440: if ($chosen_output->{'base'} =~ /final table/) {
1441: $r->print(<<END);
1442: <h2>Unable to Complete Request</h2>
1443: <p>
1444: The <b>Summary Table (Scores)</b> option is not available for non-HTML output.
1445: </p>
1446: END
1447: $request_aborted = 1;
1448: }
1449: return if ($request_aborted);
1450: #
1451: # Initialize progress window
1452: my $studentcount = scalar(@Apache::lonstatistics::Students);
1453: %prog_state=&Apache::lonhtmlcommon::Create_PrgWin
1454: ($r,'CSV File Compilation Status',
1455: 'CSV File Compilation Progress', $studentcount);
1456: #
1457: # Open a file
1458: $filename = '/prtspool/'.
1459: $ENV{'user.name'}.'_'.$ENV{'user.domain'}.'_'.
1460: time.'_'.rand(1000000000).'.csv';
1461: unless ($outputfile = Apache::File->new('>/home/httpd'.$filename)) {
1462: $r->log_error("Couldn't open $filename for output $!");
1463: $r->print("Problems occured in writing the csv file. ".
1464: "This error has been logged. ".
1465: "Please alert your LON-CAPA administrator.");
1466: $outputfile = undef;
1467: }
1468: #
1469: # Datestamp
1470: my $description = $ENV{'course.'.$ENV{'request.course.id'}.'.description'};
1471: print $outputfile '"'.&Apache::loncommon::csv_translate($description).'",'.
1472: '"'.&Apache::loncommon::csv_translate(scalar(localtime(time))).'"'.
1473: "\n";
1474: #
1475: # Print out the headings
1476: my $sequence_row = '';
1477: my $resource_row = undef;
1478: foreach my $field (&get_student_fields_to_show()) {
1479: $sequence_row .='"",';
1480: $resource_row .= '"'.&Apache::loncommon::csv_translate($field).'",';
1481: }
1482: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
1483: $sequence_row .= '"'.
1484: &Apache::loncommon::csv_translate($seq->{'title'}).'",';
1485: my $count = 0;
1486: if ($chosen_output->{'every_problem'}) {
1487: foreach my $res (@{$seq->{'contents'}}) {
1488: if ($res->{'type'} ne 'assessment' ||
1489: ! exists($res->{'parts'}) ||
1490: ref($res->{'parts'}) ne 'ARRAY' ||
1491: scalar(@{$res->{'parts'}}) < 1) {
1492: next;
1493: }
1494: foreach my $part (@{$res->{'parts'}}) {
1495: $resource_row .= '"'.
1496: &Apache::loncommon::csv_translate($res->{'title'}.
1497: ', Part '.$part
1498: ).'",';
1499: $count++;
1500: }
1501: }
1502: }
1503: $sequence_row.='"",'x$count;
1504: if ($chosen_output->{'sequence_sum'}) {
1505: if($chosen_output->{'correct'}) {
1506: $resource_row .= '"sum",';
1507: } else {
1508: $resource_row .= '"score",';
1509: }
1510: }
1511: if ($chosen_output->{'sequence_max'}) {
1512: $sequence_row.= '"",';
1513: $resource_row .= '"maximum possible",';
1514: }
1515: }
1516: if ($chosen_output->{'grand_total'}) {
1517: $sequence_row.= '"",';
1518: $resource_row.= '"Total",';
1519: }
1520: chomp($sequence_row);
1521: chomp($resource_row);
1522: print $outputfile $sequence_row."\n";
1523: print $outputfile $resource_row."\n";
1524: return;
1525: }
1526:
1527: sub csv_outputstudent {
1528: my ($r,$student) = @_;
1529: return if ($request_aborted);
1530: return if (! defined($outputfile));
1531: my $Str = '';
1532: #
1533: # Output student fields
1534: my @to_show = &get_student_fields_to_show();
1535: foreach my $field (@to_show) {
1536: $Str .= '"'.&Apache::loncommon::csv_translate($student->{$field}).'",';
1537: }
1538: #
1539: # Get student assessment data
1540: my %StudentsData;
1541: my @tmp = &Apache::loncoursedata::get_current_state($student->{'username'},
1542: $student->{'domain'},
1543: undef,
1544: $ENV{'request.course.id'});
1545: if ((scalar @tmp > 0) && ($tmp[0] !~ /^error:/)) {
1546: %StudentsData = @tmp;
1547: }
1548: #
1549: # Output performance data
1550: my $total = 0;
1551: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
1552: my ($performance,$performance_length,$score,$seq_max,$rawdata);
1553: if ($chosen_output->{'tries'}){
1554: ($performance,$performance_length,$score,$seq_max,$rawdata) =
1555: &StudentTriesOnSequence($student,\%StudentsData,
1556: $seq,'no');
1557: } else {
1558: ($performance,$performance_length,$score,$seq_max,$rawdata) =
1559: &StudentPerformanceOnSequence($student,\%StudentsData,
1560: $seq,'no');
1561: }
1562: if ($chosen_output->{'every_problem'}) {
1563: if ($chosen_output->{'correct'}) {
1564: $score = 0;
1565: # Deal with number of parts correct data
1566: $Str .= '"'.join('","',( map { if ($_>0) {
1567: $score += 1;
1568: 1;
1569: } else {
1570: 0;
1571: }
1572: } @$rawdata)).'",';
1573: } else {
1574: $Str .= '"'.join('","',(@$rawdata)).'",';
1575: }
1576: }
1577: if ($chosen_output->{'sequence_sum'}) {
1578: $Str .= '"'.$score.'",';
1579: }
1580: if ($chosen_output->{'sequence_max'}) {
1581: $Str .= '"'.$seq_max.'",';
1582: }
1583: $total+=$score;
1584: }
1585: if ($chosen_output->{'grand_total'}) {
1586: $Str .= '"'.$total.'",';
1587: }
1588: chop($Str);
1589: $Str .= "\n";
1590: print $outputfile $Str;
1591: #
1592: # Update the progress window
1593: &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,'last student');
1594: return;
1595: }
1596:
1597: sub csv_finish {
1598: my ($r) = @_;
1599: return if ($request_aborted);
1600: return if (! defined($outputfile));
1601: close($outputfile);
1602: #
1603: my $c = $r->connection();
1604: return if ($c->aborted());
1605: #
1606: # Close the progress window
1607: &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
1608: #
1609: # Tell the user where to get their csv file
1610: $r->print('<br />'.
1611: '<a href="'.$filename.'">'.&mt('Your csv file.').'</a>'."\n");
1612: $r->rflush();
1613: return;
1614:
1615: }
1616:
1617: }
1618:
1619: #######################################################
1620: #######################################################
1621:
1622: =pod
1623:
1624: =item &StudentTriesOnSequence()
1625:
1626: Inputs:
1627:
1628: =over 4
1629:
1630: =item $student
1631:
1632: =item $studentdata Hash ref to all student data
1633:
1634: =item $seq Hash ref, the sequence we are working on
1635:
1636: =item $links if defined we will output links to each resource.
1637:
1638: =back
1639:
1640: =cut
1641:
1642: #######################################################
1643: #######################################################
1644: sub StudentTriesOnSequence {
1645: my ($student,$studentdata,$seq,$links) = @_;
1646: $links = 'no' if (! defined($links));
1647: my $Str = '';
1648: my ($sum,$max) = (0,0);
1649: my $performance_length = 0;
1650: my @TriesData = ();
1651: my $tries;
1652: my $hasdata = 0; # flag - true if the student has any data on the sequence
1653: foreach my $resource (@{$seq->{'contents'}}) {
1654: next if ($resource->{'type'} ne 'assessment');
1655: my $resource_data = $studentdata->{$resource->{'symb'}};
1656: my $value = '';
1657: foreach my $partnum (@{$resource->{'parts'}}) {
1658: $tries = undef;
1659: $max++;
1660: $performance_length++;
1661: my $symbol = ' '; # default to space
1662: #
1663: my $awarded = 0;
1664: if (exists($resource_data->{'resource.'.$partnum.'.awarded'})) {
1665: $awarded = $resource_data->{'resource.'.$partnum.'.awarded'};
1666: $awarded = 0 if (! $awarded);
1667: }
1668: #
1669: my $status = '';
1670: if (exists($resource_data->{'resource.'.$partnum.'.solved'})) {
1671: $status = $resource_data->{'resource.'.$partnum.'.solved'};
1672: }
1673: #
1674: my $tries = 0;
1675: if(exists($resource_data->{'resource.'.$partnum.'.tries'})) {
1676: $tries = $resource_data->{'resource.'.$partnum.'.tries'};
1677: $hasdata =1;
1678: }
1679: #
1680: if ($awarded > 0) {
1681: # The student has gotten the problem correct to some degree
1682: if ($status eq 'excused') {
1683: $symbol = 'x';
1684: $max--;
1685: } elsif ($status eq 'correct_by_override') {
1686: $symbol = '+';
1687: $sum++;
1688: } elsif ($tries > 0) {
1689: if ($tries > 9) {
1690: $symbol = '*';
1691: } else {
1692: $symbol = $tries;
1693: }
1694: $sum++;
1695: } else {
1696: $symbol = '+';
1697: $sum++;
1698: }
1699: } else {
1700: # The student has the problem incorrect or it is ungraded
1701: if ($status eq 'excused') {
1702: $symbol = 'x';
1703: $max--;
1704: } elsif ($status eq 'incorrect_by_override') {
1705: $symbol = '-';
1706: } elsif ($status eq 'ungraded_attempted') {
1707: $symbol = '#';
1708: } elsif ($status eq 'incorrect_attempted' ||
1709: $tries > 0) {
1710: $symbol = '.';
1711: } else {
1712: # Problem is wrong and has not been attempted.
1713: $symbol=' ';
1714: }
1715: }
1716: #
1717: if (! defined($tries)) {
1718: $tries = $symbol;
1719: }
1720: push (@TriesData,$tries);
1721: #
1722: if ( ($links eq 'yes' && $symbol ne ' ') ||
1723: ($links eq 'all')) {
1724: if (length($symbol) > 1) {
1725: &Apache::lonnet::logthis('length of symbol "'.$symbol.'" > 1');
1726: }
1727: $symbol = '<a href="/adm/grades'.
1728: '?symb='.&Apache::lonnet::escape($resource->{'symb'}).
1729: '&student='.$student->{'username'}.
1730: '&userdom='.$student->{'domain'}.
1731: '&command=submission">'.$symbol.'</a>';
1732: }
1733: $value .= $symbol;
1734: }
1735: $Str .= $value;
1736: }
1737: if ($seq->{'randompick'}) {
1738: $max = $seq->{'randompick'};
1739: }
1740: if (! $hasdata && $sum == 0) {
1741: $sum = ' ';
1742: }
1743: return ($Str,$performance_length,$sum,$max,\@TriesData);
1744: }
1745:
1746: #######################################################
1747: #######################################################
1748:
1749: =pod
1750:
1751: =item &StudentPerformanceOnSequence()
1752:
1753: Inputs:
1754:
1755: =over 4
1756:
1757: =item $student
1758:
1759: =item $studentdata Hash ref to all student data
1760:
1761: =item $seq Hash ref, the sequence we are working on
1762:
1763: =item $links if defined we will output links to each resource.
1764:
1765: =back
1766:
1767: =cut
1768:
1769: #######################################################
1770: #######################################################
1771: sub StudentPerformanceOnSequence {
1772: my ($student,$studentdata,$seq,$links) = @_;
1773: $links = 'no' if (! defined($links));
1774: my $Str = ''; # final result string
1775: my ($score,$max) = (0,0);
1776: my $performance_length = 0;
1777: my $symbol;
1778: my @ScoreData = ();
1779: my $partscore;
1780: my $hasdata = 0; # flag, 0 if there were no submissions on the sequence
1781: foreach my $resource (@{$seq->{'contents'}}) {
1782: next if ($resource->{'type'} ne 'assessment');
1783: my $resource_data = $studentdata->{$resource->{'symb'}};
1784: foreach my $part (@{$resource->{'parts'}}) {
1785: $partscore = undef;
1786: my $weight = &Apache::lonnet::EXT('resource.'.$part.'.weight',
1787: $resource->{'symb'},
1788: $student->{'domain'},
1789: $student->{'username'},
1790: $student->{'section'});
1791: if (!defined($weight) || ($weight eq '')) {
1792: $weight=1;
1793: }
1794: #
1795: $max += $weight; # see the 'excused' branch below...
1796: $performance_length++; # one character per part
1797: $symbol = ' '; # default to space
1798: #
1799: my $awarded;
1800: if (exists($resource_data->{'resource.'.$part.'.awarded'})) {
1801: $awarded = $resource_data->{'resource.'.$part.'.awarded'};
1802: $awarded = 0 if (! $awarded);
1803: $hasdata = 1;
1804: }
1805: #
1806: $partscore = $weight*$awarded;
1807: if (! defined($awarded)) {
1808: $partscore = undef;
1809: }
1810: $score += $partscore;
1811: $symbol = $partscore;
1812: if (abs($symbol - sprintf("%.0f",$symbol)) < 0.001) {
1813: $symbol = sprintf("%.0f",$symbol);
1814: }
1815: if (length($symbol) > 1) {
1816: $symbol = '*';
1817: }
1818: if (exists($resource_data->{'resource.'.$part.'.solved'})) {
1819: my $status = $resource_data->{'resource.'.$part.'.solved'};
1820: if ($status eq 'excused') {
1821: $symbol = 'x';
1822: $max -= $weight; # Do not count 'excused' problems.
1823: }
1824: $hasdata = 1;
1825: } else {
1826: # Unsolved. Did they try?
1827: if (exists($resource_data->{'resource.'.$part.'.tries'})){
1828: $symbol = '.';
1829: $hasdata = 1;
1830: } else {
1831: $symbol = ' ';
1832: }
1833: }
1834: #
1835: if (! defined($partscore)) {
1836: $partscore = $symbol;
1837: }
1838: push (@ScoreData,$partscore);
1839: #
1840: if ( ($links eq 'yes' && $symbol ne ' ') || ($links eq 'all')) {
1841: $symbol = '<a href="/adm/grades'.
1842: '?symb='.&Apache::lonnet::escape($resource->{'symb'}).
1843: '&student='.$student->{'username'}.
1844: '&userdom='.$student->{'domain'}.
1845: '&command=submission">'.$symbol.'</a>';
1846: }
1847: $Str .= $symbol;
1848: }
1849: }
1850: if (! $hasdata && $score == 0) {
1851: $score = ' ';
1852: }
1853: return ($Str,$performance_length,$score,$max,\@ScoreData);
1854: }
1855:
1856: #######################################################
1857: #######################################################
1858:
1859: =pod
1860:
1861: =item &CreateLegend()
1862:
1863: This function returns a formatted string containing the legend for the
1864: chart. The legend describes the symbols used to represent grades for
1865: problems.
1866:
1867: =cut
1868:
1869: #######################################################
1870: #######################################################
1871: sub CreateLegend {
1872: my $Str = "<p><pre>".
1873: " 1 correct by student in 1 try\n".
1874: " 7 correct by student in 7 tries\n".
1875: " * correct by student in more than 9 tries\n".
1876: " + correct by hand grading or override\n".
1877: " - incorrect by override\n".
1878: " . incorrect attempted\n".
1879: " # ungraded attempted\n".
1880: " not attempted (blank field)\n".
1881: " x excused".
1882: "</pre><p>";
1883: return $Str;
1884: }
1885:
1886: #######################################################
1887: #######################################################
1888:
1889: =pod
1890:
1891: =back
1892:
1893: =cut
1894:
1895: #######################################################
1896: #######################################################
1897:
1898: 1;
1899:
1900: __END__
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