1: # The LearningOnline Network with CAPA
2: #
3: # $Id: lonstudentassessment.pm,v 1.90 2004/02/12 21:15:47 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 .= &CreateLegend();
310: $Str .= '<table cellspacing="5">'."\n";
311: $Str .= '<tr>';
312: $Str .= '<td align="center"><b>'.&mt('Sections').'</b></td>';
313: $Str .= '<td align="center"><b>'.&mt('Student Data</b>').'</td>';
314: $Str .= '<td align="center"><b>'.&mt('Enrollment Status').'</b></td>';
315: $Str .= '<td align="center"><b>'.&mt('Sequences and Folders').'</b></td>';
316: $Str .= '<td align="center"><b>'.&mt('Output Format').'</b>'.
317: &Apache::loncommon::help_open_topic("Chart_Output_Formats").
318: '</td>';
319: $Str .= '<td align="center"><b>'.&mt('Output Data').'</b>'.
320: &Apache::loncommon::help_open_topic("Chart_Output_Data").
321: '</td>';
322: $Str .= '</tr>'."\n";
323: #
324: $Str .= '<tr><td align="center">'."\n";
325: $Str .= &Apache::lonstatistics::SectionSelect('Section','multiple',5);
326: $Str .= '</td><td align="center">';
327: my $only_seq_with_assessments = sub {
328: my $s=shift;
329: if ($s->{'num_assess'} < 1) {
330: return 0;
331: } else {
332: return 1;
333: }
334: };
335: $Str .= &Apache::lonstatistics::StudentDataSelect('StudentData','multiple',
336: 5,undef);
337: $Str .= '</td><td>'."\n";
338: $Str .= &Apache::lonhtmlcommon::StatusOptions(undef,undef,5);
339: $Str .= '</td><td>'."\n";
340: $Str .= &Apache::lonstatistics::MapSelect('Maps','multiple,all',5,
341: $only_seq_with_assessments);
342: $Str .= '</td><td>'."\n";
343: $Str .= &CreateAndParseOutputSelector();
344: $Str .= '</td><td>'."\n";
345: $Str .= &CreateAndParseOutputDataSelector();
346: $Str .= '</td></tr>'."\n";
347: $Str .= '</table>'."\n";
348: $Str .= '<input type="submit" name="Generate Chart" value="'.
349: &mt('Generate Chart').'" />';
350: $Str .= ' 'x5;
351: $Str .= '<input type="submit" name="selectstudent" value="'.
352: &mt('Select One Student').'" />';
353: $Str .= ' 'x5;
354: $Str .= '<input type="submit" name="ClearCache" value="'.
355: &mt('Clear Caches').'" />';
356: $Str .= ' 'x5;
357: $Str .= '<br />';
358: return $Str;
359: }
360:
361: #######################################################
362: #######################################################
363:
364: =pod
365:
366: =item &CreateAndParseOutputSelector()
367:
368: =cut
369:
370: #######################################################
371: #######################################################
372: my @OutputOptions =
373: ({ name => 'HTML, with links',
374: value => 'html, with links',
375: description => 'Output HTML with each symbol linked to the problem '.
376: 'which generated it.',
377: mode => 'html',
378: show_links => 'yes',
379: },
380: { name => 'HTML, with all links',
381: value => 'html, with all links',
382: description => 'Output HTML with each symbol linked to the problem '.
383: 'which generated it. '.
384: 'This includes links for unattempted problems.',
385: mode => 'html',
386: show_links => 'all',
387: },
388: { name => 'HTML, without links',
389: value => 'html, without links',
390: description => 'Output HTML. By not including links, the size of the'.
391: ' web page is greatly reduced. If your browser crashes on the '.
392: 'full display, try this.',
393: mode => 'html',
394: show_links => 'no',
395: },
396: { name => 'Excel',
397: value => 'excel',
398: description => 'Output an Excel file (compatable with Excel 95).',
399: mode => 'excel',
400: show_links => 'no',
401: },
402: { name => 'CSV',
403: value => 'csv',
404: description => 'Output a comma seperated values file suitable for '.
405: 'import into a spreadsheet program. Using this method as opposed '.
406: 'to Excel output allows you to organize your data before importing'.
407: ' it into a spreadsheet program.',
408: mode => 'csv',
409: show_links => 'no',
410: },
411: );
412:
413: sub OutputDescriptions {
414: my $Str = '';
415: $Str .= "<h2>Output Formats</h2>\n";
416: $Str .= "<dl>\n";
417: foreach my $outputmode (@OutputOptions) {
418: $Str .=" <dt>".$outputmode->{'name'}."</dt>\n";
419: $Str .=" <dd>".$outputmode->{'description'}."</dd>\n";
420: }
421: $Str .= "</dl>\n";
422: return $Str;
423: }
424:
425: sub CreateAndParseOutputSelector {
426: my $Str = '';
427: my $elementname = 'chartoutputmode';
428: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
429: [$elementname]);
430: #
431: # Format for output options is 'mode, restrictions';
432: my $selected = 'html, without links';
433: if (exists($ENV{'form.'.$elementname})) {
434: if (ref($ENV{'form.'.$elementname} eq 'ARRAY')) {
435: $selected = $ENV{'form.'.$elementname}->[0];
436: } else {
437: $selected = $ENV{'form.'.$elementname};
438: }
439: }
440: #
441: # Set package variables describing output mode
442: $show_links = 'no';
443: $output_mode = 'html';
444: foreach my $option (@OutputOptions) {
445: next if ($option->{'value'} ne $selected);
446: $output_mode = $option->{'mode'};
447: $show_links = $option->{'show_links'};
448: }
449:
450: #
451: # Build the form element
452: $Str = qq/<select size="5" name="$elementname">/;
453: foreach my $option (@OutputOptions) {
454: $Str .= "\n".' <option value="'.$option->{'value'}.'"';
455: $Str .= " selected " if ($option->{'value'} eq $selected);
456: $Str .= ">".&mt($option->{'name'})."<\/option>";
457: }
458: $Str .= "\n</select>";
459: return $Str;
460: }
461:
462: ##
463: ## Data selector stuff
464: ##
465: my @OutputDataOptions =
466: (
467: { name => 'Scores Summary',
468: base => 'scores',
469: value => 'sum and total',
470: scores => 1,
471: tries => 0,
472: every_problem => 0,
473: sequence_sum => 1,
474: sequence_max => 1,
475: grand_total => 1,
476: summary_table => 1,
477: maximum_row => 1,
478: shortdesc => 'Total Score and Maximum Possible for each '.
479: 'Sequence or Folder',
480: longdesc => 'The score of each student as well as the '.
481: ' maximum possible on each Sequence or Folder.',
482: },
483: { name => 'Scores Per Problem',
484: base => 'scores',
485: value => 'scores',
486: scores => 1,
487: tries => 0,
488: correct => 0,
489: every_problem => 1,
490: sequence_sum => 1,
491: sequence_max => 1,
492: grand_total => 1,
493: summary_table => 1,
494: maximum_row => 1,
495: shortdesc => 'Score on each Problem Part',
496: longdesc =>'The students score on each problem part, computed as'.
497: 'the part weight * part awarded',
498: },
499: { name =>'Tries',
500: base =>'tries',
501: value => 'tries',
502: scores => 0,
503: tries => 1,
504: correct => 0,
505: every_problem => 1,
506: sequence_sum => 0,
507: sequence_max => 0,
508: grand_total => 0,
509: summary_table => 0,
510: maximum_row => 0,
511: shortdesc => 'Number of Tries before success on each Problem Part',
512: longdesc =>'The number of tries before success on each problem part.',
513: },
514: { name =>'Parts Correct',
515: base =>'tries',
516: value => 'parts correct total',
517: scores => 0,
518: tries => 0,
519: correct => 1,
520: every_problem => 1,
521: sequence_sum => 1,
522: sequence_max => 1,
523: grand_total => 1,
524: summary_table => 1,
525: maximum_row => 0,
526: shortdesc => 'Number of Problem Parts completed successfully.',
527: longdesc => 'The Number of Problem Parts completed successfully and '.
528: 'the maximum possible for each student',
529: },
530: );
531:
532: sub HTMLifyOutputDataDescriptions {
533: my $Str = '';
534: $Str .= "<h2>Output Data</h2>\n";
535: $Str .= "<dl>\n";
536: foreach my $option (@OutputDataOptions) {
537: $Str .= ' <dt>'.$option->{'name'}.'</dt>';
538: $Str .= '<dd>'.$option->{'longdesc'}.'</dd>'."\n";
539: }
540: $Str .= "</dl>\n";
541: return $Str;
542: }
543:
544: sub CreateAndParseOutputDataSelector {
545: my $Str = '';
546: my $elementname = 'chartoutputdata';
547: #
548: my $selected = 'scores';
549: if (exists($ENV{'form.'.$elementname})) {
550: if (ref($ENV{'form.'.$elementname} eq 'ARRAY')) {
551: $selected = $ENV{'form.'.$elementname}->[0];
552: } else {
553: $selected = $ENV{'form.'.$elementname};
554: }
555: }
556: #
557: $chosen_output = $OutputDataOptions[0];
558: foreach my $option (@OutputDataOptions) {
559: if ($option->{'value'} eq $selected) {
560: $chosen_output = $option;
561: }
562: }
563: #
564: # Build the form element
565: $Str = qq/<select size="5" name="$elementname">/;
566: foreach my $option (@OutputDataOptions) {
567: $Str .= "\n".' <option value="'.$option->{'value'}.'"';
568: $Str .= " selected " if ($option->{'value'} eq $chosen_output->{'value'});
569: $Str .= ">".&mt($option->{'name'})."<\/option>";
570: }
571: $Str .= "\n</select>";
572: return $Str;
573:
574: }
575:
576: #######################################################
577: #######################################################
578:
579: =pod
580:
581: =head2 HTML output routines
582:
583: =item &html_initialize($r)
584:
585: Create labels for the columns of student data to show.
586:
587: =item &html_outputstudent($r,$student)
588:
589: Return a line of the chart for a student.
590:
591: =item &html_finish($r)
592:
593: =cut
594:
595: #######################################################
596: #######################################################
597: {
598: my $padding;
599: my $count;
600:
601: my $nodata_count; # The number of students for which there is no data
602: my %prog_state; # progress state used by loncommon PrgWin routines
603:
604: sub html_initialize {
605: my ($r) = @_;
606: #
607: $padding = ' 'x3;
608: $count = 0;
609: $nodata_count = 0;
610: undef(%prog_state);
611: #
612: $r->print("<h3>".$ENV{'course.'.$ENV{'request.course.id'}.'.description'}.
613: " ".localtime(time)."</h3>");
614:
615: if ($chosen_output->{'base'} !~ /^final table/) {
616: $r->print("<h3>".$chosen_output->{'shortdesc'}."</h3>");
617: }
618: my $Str = "<pre>\n";
619: # First, the @StudentData fields need to be listed
620: my @to_show = &get_student_fields_to_show();
621: foreach my $field (@to_show) {
622: my $title=$Apache::lonstatistics::StudentData{$field}->{'title'};
623: my $base =$Apache::lonstatistics::StudentData{$field}->{'base_width'};
624: my $width=$Apache::lonstatistics::StudentData{$field}->{'width'};
625: $Str .= $title.' 'x($width-$base).$padding;
626: }
627: #
628: # Compute the column widths and output the sequence titles
629: foreach my $sequence (&Apache::lonstatistics::Sequences_with_Assess()){
630: #
631: # Comptue column widths
632: $sequence->{'width_sum'} = 0;
633: if ($chosen_output->{'sequence_sum'}) {
634: # Use 3 digits for the sum
635: $sequence->{'width_sum'} = 3;
636: }
637: if ($chosen_output->{'sequence_max'}) {
638: if ($sequence->{'width_sum'}>0) {
639: # One digit for the '/'
640: $sequence->{'width_sum'} +=1;
641: }
642: # Use 3 digits for the total
643: $sequence->{'width_sum'}+=3;
644: }
645: if ($chosen_output->{'every_problem'}) {
646: # one problem per digit
647: $sequence->{'width_problem'} = $sequence->{'num_assess_parts'};
648: } else {
649: $sequence->{'width_problem'} = 0;
650: }
651: $sequence->{'width_total'} = $sequence->{'width_problem'} +
652: $sequence->{'width_sum'};
653: if ($sequence->{'width_total'} < length($sequence->{'title'})) {
654: $sequence->{'width_total'} = length($sequence->{'title'});
655: $sequence->{'width_problem'} =
656: $sequence->{'width_total'} - $sequence->{'width_sum'};
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: }
731: $performance .= ' 'x($seq->{'width_problem'}-$performance_length).
732: $ratio;
733: #
734: $Str .= $performance.$padding;
735: #
736: $studentstats->{$seq->{'symb'}}->{'score'}= $score;
737: $studentstats->{$seq->{'symb'}}->{'max'} = $seq_max;
738: }
739: #
740: # Total it up and store the statistics info.
741: my ($score,$max) = (0,0);
742: while (my ($symb,$seq_stats) = each (%{$studentstats})) {
743: $Statistics->{$symb}->{'score'} += $seq_stats->{'score'};
744: if ($Statistics->{$symb}->{'max'} < $seq_stats->{'max'}) {
745: $Statistics->{$symb}->{'max'} = $seq_stats->{'max'};
746: }
747: $score += $seq_stats->{'score'};
748: $max += $seq_stats->{'max'};
749: }
750: $Str .= ' '.' 'x(length($max)-length($score)).$score.'/'.$max;
751: $Str .= " \n";
752: #
753: $r->print($Str);
754: #
755: $r->rflush();
756: return;
757: }
758:
759: sub html_finish {
760: my ($r) = @_;
761: #
762: # Check for suppressed output and close the progress window if so
763: $r->print("</pre>\n");
764: if ($chosen_output->{'summary_table'}) {
765: if ($single_student_mode) {
766: $r->print(&SingleStudentTotal());
767: } else {
768: $r->print(&StudentAverageTotal());
769: }
770: }
771: $r->rflush();
772: return;
773: }
774:
775: sub StudentAverageTotal {
776: my $Str = "<h3>Summary Tables</h3>\n";
777: my $num_students = scalar(@Apache::lonstatistics::Students);
778: my $total_ave = 0;
779: my $total_max = 0;
780: $Str .= '<table border=2 cellspacing="1">'."\n";
781: $Str .= "<tr><th>Title</th><th>Average</th><th>Maximum</th></tr>\n";
782: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
783: my $ave;
784: if ($num_students > $nodata_count) {
785: $ave = int(100*($Statistics->{$seq->{'symb'}}->{'score'}/
786: ($num_students-$nodata_count)))/100;
787: } else {
788: $ave = 0;
789: }
790: $total_ave += $ave;
791: my $max = $Statistics->{$seq->{'symb'}}->{'max'};
792: $total_max += $max;
793: $ave = sprintf("%.2f",$ave);
794: $Str .= '<tr><td>'.$seq->{'title'}.'</td>'.
795: '<td align="right">'.$ave.' </td>'.
796: '<td align="right">'.$max.' '.'</td></tr>'."\n";
797: }
798: $total_ave = sprintf('%.2f',$total_ave); # only two digit
799: $Str .= "</table>\n";
800: $Str .= '<table border=2 cellspacing="1">'."\n";
801: $Str .= '<tr><th>Number of Students</th><th>Average</th>'.
802: "<th>Maximum</th></tr>\n";
803: $Str .= '<tr>'.
804: '<td align="right">'.($num_students-$nodata_count).'</td>'.
805: '<td align="right">'.$total_ave.' '.'</td>'.
806: '<td align="right">'.$total_max.' '.'</td>';
807: $Str .= "</table>\n";
808: return $Str;
809: }
810:
811: sub SingleStudentTotal {
812: my $student = &Apache::lonstatistics::current_student();
813: my $Str = "<h3>Summary table for ".$student->{'fullname'}." ".
814: $student->{'username'}.'@'.$student->{'domain'}."</h3>\n";
815: $Str .= '<table border=2 cellspacing="1">'."\n";
816: $Str .=
817: "<tr><th>Sequence or Folder</th><th>Score</th><th>Maximum</th></tr>\n";
818: my $total = 0;
819: my $total_max = 0;
820: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
821: my $value = $Statistics->{$seq->{'symb'}}->{'score'};
822: my $max = $Statistics->{$seq->{'symb'}}->{'max'};
823: $Str .= '<tr><td>'.$seq->{'title'}.'</td>'.
824: '<td align="right">'.$value.'</td>'.
825: '<td align="right">'.$max.'</td></tr>'."\n";
826: $total += $value;
827: $total_max +=$max;
828: }
829: $Str .= '<tr><td><b>Total</b></td>'.
830: '<td align="right">'.$total.'</td>'.
831: '<td align="right">'.$total_max."</td></tr>\n";
832: $Str .= "</table>\n";
833: return $Str;
834: }
835:
836: }
837:
838: #######################################################
839: #######################################################
840:
841: =pod
842:
843: =head2 EXCEL subroutines
844:
845: =item &excel_initialize($r)
846:
847: =item &excel_outputstudent($r,$student)
848:
849: =item &excel_finish($r)
850:
851: =cut
852:
853: #######################################################
854: #######################################################
855: {
856:
857: my $excel_sheet;
858: my $excel_workbook;
859:
860: my $filename;
861: my $rows_output;
862: my $cols_output;
863:
864: my %prog_state; # progress window state
865: my $request_aborted;
866:
867: my $total_formula;
868:
869: sub excel_initialize {
870: my ($r) = @_;
871: #
872: undef ($excel_sheet);
873: undef ($excel_workbook);
874: undef ($filename);
875: undef ($rows_output);
876: undef ($cols_output);
877: undef (%prog_state);
878: undef ($request_aborted);
879: undef ($total_formula);
880: #
881: my $total_columns = scalar(&get_student_fields_to_show());
882: my $num_students = scalar(@Apache::lonstatistics::Students);
883: #
884: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
885: if ($chosen_output->{'every_problem'}) {
886: $total_columns += $seq->{'num_assess_parts'};
887: }
888: # Add 2 because we need a 'sequence_sum' and 'total' column for each
889: $total_columns += 2;
890: }
891: if ($chosen_output->{'base'} eq 'tries' && $total_columns > 255) {
892: $r->print(<<END);
893: <h2>Unable to Complete Request</h2>
894: <p>
895: LON-CAPA is unable to produce your Excel spreadsheet because your selections
896: will result in more than 255 columns. Excel allows only 255 columns in a
897: spreadsheet.
898: </p><p>
899: You may consider reducing the number of <b>Sequences or Folders</b> you
900: have selected.
901: </p><p>
902: LON-CAPA can produce <b>CSV</b> files of this data or Excel files of the
903: summary data (<b>Parts Correct</b> or <b>Parts Correct & Totals</b>).
904: </p>
905: END
906: $request_aborted = 1;
907: }
908: if ($chosen_output->{'base'} eq 'scores' && $total_columns > 255) {
909: $r->print(<<END);
910: <h2>Unable to Complete Request</h2>
911: <p>
912: LON-CAPA is unable to produce your Excel spreadsheet because your selections
913: will result in more than 255 columns. Excel allows only 255 columns in a
914: spreadsheet.
915: </p><p>
916: You may consider reducing the number of <b>Sequences or Folders</b> you
917: have selected.
918: </p><p>
919: LON-CAPA can produce <b>CSV</b> files of this data or Excel files of the
920: <b>Scores Summary</b> data.
921: </p>
922: END
923: $request_aborted = 1;
924: }
925: return if ($request_aborted);
926: #
927: $filename = '/prtspool/'.
928: $ENV{'user.name'}.'_'.$ENV{'user.domain'}.'_'.
929: time.'_'.rand(1000000000).'.xls';
930: #
931: $excel_workbook = undef;
932: $excel_sheet = undef;
933: #
934: $rows_output = 0;
935: $cols_output = 0;
936: #
937: # Determine rows
938: my $header_row = $rows_output++;
939: my $description_row = $rows_output++;
940: $rows_output++; # blank row
941: my $summary_header_row;
942: if ($chosen_output->{'summary_table'}) {
943: $summary_header_row = $rows_output++;
944: $rows_output+= scalar(&Apache::lonstatistics::Sequences_with_Assess());
945: $rows_output++;
946: }
947: my $sequence_name_row = $rows_output++;
948: my $resource_name_row = $rows_output++;
949: my $maximum_data_row = $rows_output++;
950: if (! $chosen_output->{'maximum_row'}) {
951: $rows_output--;
952: }
953: my $first_data_row = $rows_output++;
954: #
955: # Create sheet
956: $excel_workbook = Spreadsheet::WriteExcel->new('/home/httpd'.$filename);
957: #
958: # Check for errors
959: if (! defined($excel_workbook)) {
960: $r->log_error("Error creating excel spreadsheet $filename: $!");
961: $r->print("Problems creating new Excel file. ".
962: "This error has been logged. ".
963: "Please alert your LON-CAPA administrator");
964: return ;
965: }
966: #
967: # The excel spreadsheet stores temporary data in files, then put them
968: # together. If needed we should be able to disable this (memory only).
969: # The temporary directory must be specified before calling 'addworksheet'.
970: # File::Temp is used to determine the temporary directory.
971: $excel_workbook->set_tempdir($Apache::lonnet::tmpdir);
972: #
973: # Add a worksheet
974: my $sheetname = $ENV{'course.'.$ENV{'request.course.id'}.'.description'};
975: $sheetname = &Apache::loncommon::clean_excel_name($sheetname);
976: $excel_sheet = $excel_workbook->addworksheet($sheetname);
977: #
978: # Define some potentially useful formats
979: my $format;
980: $format->{'header'} = $excel_workbook->add_format(bold => 1,
981: bottom => 1,
982: align => 'center');
983: $format->{'bold'} = $excel_workbook->add_format(bold=>1);
984: $format->{'h1'} = $excel_workbook->add_format(bold=>1, size=>18);
985: $format->{'h2'} = $excel_workbook->add_format(bold=>1, size=>16);
986: $format->{'h3'} = $excel_workbook->add_format(bold=>1, size=>14);
987: $format->{'date'} = $excel_workbook->add_format(num_format=>
988: 'mmm d yyyy hh:mm AM/PM');
989: #
990: # Put the course description in the header
991: $excel_sheet->write($header_row,$cols_output++,
992: $ENV{'course.'.$ENV{'request.course.id'}.'.description'},
993: $format->{'h1'});
994: $cols_output += 3;
995: #
996: # Put a description of the sections listed
997: my $sectionstring = '';
998: my @Sections = @Apache::lonstatistics::SelectedSections;
999: if (scalar(@Sections) > 1) {
1000: if (scalar(@Sections) > 2) {
1001: my $last = pop(@Sections);
1002: $sectionstring = "Sections ".join(', ',@Sections).', and '.$last;
1003: } else {
1004: $sectionstring = "Sections ".join(' and ',@Sections);
1005: }
1006: } else {
1007: if ($Sections[0] eq 'all') {
1008: $sectionstring = "All sections";
1009: } else {
1010: $sectionstring = "Section ".$Sections[0];
1011: }
1012: }
1013: $excel_sheet->write($header_row,$cols_output++,$sectionstring,
1014: $format->{'h3'});
1015: $cols_output += scalar(@Sections);
1016: #
1017: # Put the date in there too
1018: $excel_sheet->write($header_row,$cols_output++,
1019: 'Compiled on '.localtime(time),$format->{'h3'});
1020: #
1021: $cols_output = 0;
1022: $excel_sheet->write($description_row,$cols_output++,
1023: $chosen_output->{'shortdesc'},
1024: $format->{'h3'});
1025: ##############################################
1026: # Output headings for the raw data
1027: ##############################################
1028: #
1029: # Add the student headers
1030: $cols_output = 0;
1031: foreach my $field (&get_student_fields_to_show()) {
1032: $excel_sheet->write($resource_name_row,$cols_output++,$field,
1033: $format->{'bold'});
1034: }
1035: #
1036: # Add the remaining column headers
1037: my $total_formula_string = '=0';
1038: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
1039: $excel_sheet->write($sequence_name_row,,
1040: $cols_output,$seq->{'title'},$format->{'bold'});
1041: # Determine starting cell
1042: $seq->{'Excel:startcell'}=
1043: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1044: ($first_data_row,$cols_output);
1045: $seq->{'Excel:startcol'}=$cols_output;
1046: my $count = 0;
1047: if ($chosen_output->{'every_problem'}) {
1048: # Put the names of the problems and parts into the sheet
1049: foreach my $res (@{$seq->{'contents'}}) {
1050: if ($res->{'type'} ne 'assessment' ||
1051: ! exists($res->{'parts'}) ||
1052: ref($res->{'parts'}) ne 'ARRAY' ||
1053: scalar(@{$res->{'parts'}}) < 1) {
1054: next;
1055: }
1056: if (scalar(@{$res->{'parts'}}) > 1) {
1057: foreach my $part (@{$res->{'parts'}}) {
1058: $excel_sheet->write($resource_name_row,
1059: $cols_output++,
1060: $res->{'title'}.' part '.$part,
1061: $format->{'bold'});
1062: }
1063: } else {
1064: $excel_sheet->write($resource_name_row,
1065: $cols_output++,
1066: $res->{'title'},$format->{'bold'});
1067: }
1068: $count++;
1069: }
1070: }
1071: # Determine ending cell
1072: if ($count <= 1) {
1073: $seq->{'Excel:endcell'} = $seq->{'Excel:startcell'};
1074: $seq->{'Excel:endcol'} = $seq->{'Excel:startcol'};
1075: } else {
1076: $seq->{'Excel:endcell'} =
1077: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1078: ($first_data_row,$cols_output-1);
1079: $seq->{'Excel:endcol'} = $cols_output-1;
1080: }
1081: # Create the formula for summing up this sequence
1082: if (! exists($seq->{'Excel:endcell'}) ||
1083: ! defined($seq->{'Excel:endcell'})) {
1084: $seq->{'Excel:endcell'} = $seq->{'Excel:startcell'};
1085: }
1086: $seq->{'Excel:sum'}= $excel_sheet->store_formula
1087: ('=SUM('.$seq->{'Excel:startcell'}.
1088: ':'.$seq->{'Excel:endcell'}.')');
1089: # Determine cell the score is held in
1090: $seq->{'Excel:scorecell'} =
1091: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1092: ($first_data_row,$cols_output);
1093: $seq->{'Excel:scorecol'}=$cols_output;
1094: if ($chosen_output->{'base'} eq 'parts correct total') {
1095: $excel_sheet->write($resource_name_row,$cols_output++,
1096: 'parts correct',
1097: $format->{'bold'});
1098: } elsif ($chosen_output->{'sequence_sum'}) {
1099: if ($chosen_output->{'correct'}) {
1100: # Only reporting the number correct, so do not call it score
1101: $excel_sheet->write($resource_name_row,$cols_output++,
1102: 'sum',
1103: $format->{'bold'});
1104: } else {
1105: $excel_sheet->write($resource_name_row,$cols_output++,
1106: 'score',
1107: $format->{'bold'});
1108: }
1109: }
1110: #
1111: $total_formula_string.='+'.
1112: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1113: ($first_data_row,$cols_output-1);
1114: if ($chosen_output->{'sequence_max'}) {
1115: $excel_sheet->write($resource_name_row,$cols_output++,
1116: 'maximum',
1117: $format->{'bold'});
1118: }
1119: }
1120: if ($chosen_output->{'grand_total'}) {
1121: $excel_sheet->write($resource_name_row,$cols_output++,'Total',
1122: $format->{'bold'});
1123: }
1124: $total_formula = $excel_sheet->store_formula($total_formula_string);
1125: ##############################################
1126: # Output a row for MAX, if appropriate
1127: ##############################################
1128: if ($chosen_output->{'maximum_row'}) {
1129: $cols_output = 0;
1130: foreach my $field (&get_student_fields_to_show()) {
1131: if ($field eq 'username' || $field eq 'fullname' ||
1132: $field eq 'id') {
1133: $excel_sheet->write($maximum_data_row,$cols_output++,'Maximum',
1134: $format->{'bold'});
1135: } else {
1136: $excel_sheet->write($maximum_data_row,$cols_output++,'');
1137: }
1138: }
1139: #
1140: # Add the maximums for each sequence or assessment
1141: my %total_cell_translation;
1142: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
1143: $cols_output=$seq->{'Excel:startcol'};
1144: $total_cell_translation{$seq->{'Excel:scorecell'}} =
1145: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1146: ($maximum_data_row,$seq->{'Excel:scorecol'});
1147: my $weight;
1148: my $max = 0;
1149: foreach my $resource (@{$seq->{'contents'}}) {
1150: next if ($resource->{'type'} ne 'assessment');
1151: foreach my $part (@{$resource->{'parts'}}) {
1152: $weight = 1;
1153: if ($chosen_output->{'scores'}) {
1154: $weight = &Apache::lonnet::EXT
1155: ('resource.'.$part.'.weight',$resource->{'symb'},
1156: undef,undef,undef);
1157: if (!defined($weight) || ($weight eq '')) {
1158: $weight=1;
1159: }
1160: }
1161: if ($chosen_output->{'scores'} &&
1162: $chosen_output->{'every_problem'}) {
1163: $excel_sheet->write($maximum_data_row,$cols_output++,
1164: $weight);
1165: }
1166: $max += $weight;
1167: }
1168: }
1169: #
1170: if ($chosen_output->{'sequence_sum'} &&
1171: $chosen_output->{'every_problem'}) {
1172: my %replaceCells;
1173: $replaceCells{$seq->{'Excel:startcell'}} =
1174: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1175: ($maximum_data_row,$seq->{'Excel:startcol'});
1176: $replaceCells{$seq->{'Excel:endcell'}} =
1177: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1178: ($maximum_data_row,$seq->{'Excel:endcol'});
1179: $excel_sheet->repeat_formula($maximum_data_row,$cols_output++,
1180: $seq->{'Excel:sum'},undef,
1181: %replaceCells);
1182: } elsif ($chosen_output->{'sequence_sum'}) {
1183: $excel_sheet->write($maximum_data_row,$cols_output++,$max);
1184: }
1185: if ($chosen_output->{'sequence_max'}) {
1186: $excel_sheet->write($maximum_data_row,$cols_output++,$max);
1187: }
1188: #
1189: }
1190: if ($chosen_output->{'grand_total'}) {
1191: $excel_sheet->repeat_formula($maximum_data_row,$cols_output++,
1192: $total_formula,undef,
1193: %total_cell_translation);
1194: }
1195: } # End of MAXIMUM row output if ($chosen_output->{'maximum_row'}) {
1196: $rows_output = $first_data_row;
1197: ##############################################
1198: # Output summary table, which actually is above the sequence name row.
1199: ##############################################
1200: if ($chosen_output->{'summary_table'}) {
1201: $cols_output = 0;
1202: $excel_sheet->write($summary_header_row,$cols_output++,
1203: 'Summary Table',$format->{'bold'});
1204: if ($chosen_output->{'maximum_row'}) {
1205: $excel_sheet->write($summary_header_row,$cols_output++,
1206: 'Maximum',$format->{'bold'});
1207: }
1208: $excel_sheet->write($summary_header_row,$cols_output++,
1209: 'Average',$format->{'bold'});
1210: $excel_sheet->write($summary_header_row,$cols_output++,
1211: 'Median',$format->{'bold'});
1212: $excel_sheet->write($summary_header_row,$cols_output++,
1213: 'Std Dev',$format->{'bold'});
1214: my $row = $summary_header_row+1;
1215: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
1216: $cols_output = 0;
1217: $excel_sheet->write($row,$cols_output++,
1218: $seq->{'title'},
1219: $format->{'bold'});
1220: if ($chosen_output->{'maximum_row'}) {
1221: $excel_sheet->write
1222: ($row,$cols_output++,
1223: '='.
1224: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1225: ($maximum_data_row,$seq->{'Excel:scorecol'})
1226: );
1227: }
1228: my $range =
1229: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1230: ($first_data_row,$seq->{'Excel:scorecol'}).
1231: ':'.
1232: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1233: ($first_data_row+$num_students-1,$seq->{'Excel:scorecol'});
1234: $excel_sheet->write($row,$cols_output++,
1235: '=AVERAGE('.$range.')');
1236: $excel_sheet->write($row,$cols_output++,
1237: '=MEDIAN('.$range.')');
1238: $excel_sheet->write($row,$cols_output++,
1239: '=STDEV('.$range.')');
1240: $row++;
1241: }
1242: }
1243: ##############################################
1244: # Take care of non-excel initialization
1245: ##############################################
1246: #
1247: # Let the user know what we are doing
1248: my $studentcount = scalar(@Apache::lonstatistics::Students);
1249: if ($ENV{'form.SelectedStudent'}) {
1250: $studentcount = '1';
1251: }
1252: if ($studentcount > 1) {
1253: $r->print('<h1>'.&mt('Compiling Excel spreadsheet for [_1] students',
1254: $studentcount)."</h1>\n");
1255: } else {
1256: $r->print('<h1>'.
1257: &mt('Compiling Excel spreadsheet for 1 student').
1258: "</h1>\n");
1259: }
1260: $r->rflush();
1261: #
1262: # Initialize progress window
1263: %prog_state=&Apache::lonhtmlcommon::Create_PrgWin
1264: ($r,'Excel File Compilation Status',
1265: 'Excel File Compilation Progress', $studentcount);
1266: #
1267: &Apache::lonhtmlcommon::Update_PrgWin($r,\%prog_state,
1268: 'Processing first student');
1269: return;
1270: }
1271:
1272: sub excel_outputstudent {
1273: my ($r,$student) = @_;
1274: return if ($request_aborted);
1275: return if (! defined($excel_sheet));
1276: $cols_output=0;
1277: #
1278: # Write out student data
1279: my @to_show = &get_student_fields_to_show();
1280: foreach my $field (@to_show) {
1281: $excel_sheet->write($rows_output,$cols_output++,$student->{$field});
1282: }
1283: #
1284: # Get student assessment data
1285: my %StudentsData;
1286: my @tmp = &Apache::loncoursedata::get_current_state($student->{'username'},
1287: $student->{'domain'},
1288: undef,
1289: $ENV{'request.course.id'});
1290: if ((scalar @tmp > 0) && ($tmp[0] !~ /^error:/)) {
1291: %StudentsData = @tmp;
1292: }
1293: #
1294: # Write out sequence scores and totals data
1295: my %total_cell_translation;
1296: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
1297: $cols_output = $seq->{'Excel:startcol'};
1298: # Keep track of cells to translate in total cell
1299: $total_cell_translation{$seq->{'Excel:scorecell'}} =
1300: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1301: ($rows_output,$seq->{'Excel:scorecol'});
1302: #
1303: my ($performance,$performance_length,$score,$seq_max,$rawdata);
1304: if ($chosen_output->{'tries'} || $chosen_output->{'correct'}){
1305: ($performance,$performance_length,$score,$seq_max,$rawdata) =
1306: &StudentTriesOnSequence($student,\%StudentsData,
1307: $seq,'no');
1308: } else {
1309: ($performance,$performance_length,$score,$seq_max,$rawdata) =
1310: &StudentPerformanceOnSequence($student,\%StudentsData,
1311: $seq,'no');
1312: }
1313: if ($chosen_output->{'every_problem'}) {
1314: if ($chosen_output->{'correct'}) {
1315: # only indiciate if each item is correct or not
1316: foreach my $value (@$rawdata) {
1317: # nonzero means correct
1318: $value = 1 if ($value > 0);
1319: $excel_sheet->write($rows_output,$cols_output++,$value);
1320: }
1321: } else {
1322: foreach my $value (@$rawdata) {
1323: $excel_sheet->write($rows_output,$cols_output++,$value);
1324: }
1325: }
1326: }
1327: if ($chosen_output->{'sequence_sum'} &&
1328: $chosen_output->{'every_problem'}) {
1329: # Write a formula for the sum of this sequence
1330: my %replaceCells;
1331: $replaceCells{$seq->{'Excel:startcell'}} =
1332: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1333: ($rows_output,$seq->{'Excel:startcol'});
1334: $replaceCells{$seq->{'Excel:endcell'}} =
1335: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1336: ($rows_output,$seq->{'Excel:endcol'});
1337: # The undef is for the format
1338: if (scalar(keys(%replaceCells)) == 1) {
1339: $excel_sheet->repeat_formula($rows_output,$cols_output++,
1340: $seq->{'Excel:sum'},undef,
1341: %replaceCells,%replaceCells);
1342: } else {
1343: $excel_sheet->repeat_formula($rows_output,$cols_output++,
1344: $seq->{'Excel:sum'},undef,
1345: %replaceCells);
1346: }
1347: } elsif ($chosen_output->{'sequence_sum'}) {
1348: $excel_sheet->write($rows_output,$cols_output++,$score);
1349: }
1350: if ($chosen_output->{'sequence_max'}) {
1351: $excel_sheet->write($rows_output,$cols_output++,$seq_max);
1352: }
1353: }
1354: #
1355: if ($chosen_output->{'grand_total'}) {
1356: $excel_sheet->repeat_formula($rows_output,$cols_output++,
1357: $total_formula,undef,
1358: %total_cell_translation);
1359: }
1360: #
1361: # Bookkeeping
1362: $rows_output++;
1363: $cols_output=0;
1364: #
1365: # Update the progress window
1366: &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,'last student');
1367: return;
1368: }
1369:
1370: sub excel_finish {
1371: my ($r) = @_;
1372: return if ($request_aborted);
1373: return if (! defined($excel_sheet));
1374: #
1375: # Write the excel file
1376: $excel_workbook->close();
1377: my $c = $r->connection();
1378: #
1379: return if($c->aborted());
1380: #
1381: # Close the progress window
1382: &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
1383: #
1384: # Tell the user where to get their excel file
1385: $r->print('<br />'.
1386: '<a href="'.$filename.'">Your Excel spreadsheet.</a>'."\n");
1387: $r->rflush();
1388: return;
1389: }
1390:
1391: }
1392: #######################################################
1393: #######################################################
1394:
1395: =pod
1396:
1397: =head2 CSV output routines
1398:
1399: =item &csv_initialize($r)
1400:
1401: =item &csv_outputstudent($r,$student)
1402:
1403: =item &csv_finish($r)
1404:
1405: =cut
1406:
1407: #######################################################
1408: #######################################################
1409: {
1410:
1411: my $outputfile;
1412: my $filename;
1413: my $request_aborted;
1414: my %prog_state; # progress window state
1415:
1416: sub csv_initialize{
1417: my ($r) = @_;
1418: #
1419: # Clean up
1420: undef($outputfile);
1421: undef($filename);
1422: undef($request_aborted);
1423: undef(%prog_state);
1424: #
1425: # Deal with unimplemented requests
1426: $request_aborted = undef;
1427: if ($chosen_output->{'base'} =~ /final table/) {
1428: $r->print(<<END);
1429: <h2>Unable to Complete Request</h2>
1430: <p>
1431: The <b>Summary Table (Scores)</b> option is not available for non-HTML output.
1432: </p>
1433: END
1434: $request_aborted = 1;
1435: }
1436: return if ($request_aborted);
1437: #
1438: # Initialize progress window
1439: my $studentcount = scalar(@Apache::lonstatistics::Students);
1440: %prog_state=&Apache::lonhtmlcommon::Create_PrgWin
1441: ($r,'CSV File Compilation Status',
1442: 'CSV File Compilation Progress', $studentcount);
1443: #
1444: # Open a file
1445: $filename = '/prtspool/'.
1446: $ENV{'user.name'}.'_'.$ENV{'user.domain'}.'_'.
1447: time.'_'.rand(1000000000).'.csv';
1448: unless ($outputfile = Apache::File->new('>/home/httpd'.$filename)) {
1449: $r->log_error("Couldn't open $filename for output $!");
1450: $r->print("Problems occured in writing the csv file. ".
1451: "This error has been logged. ".
1452: "Please alert your LON-CAPA administrator.");
1453: $outputfile = undef;
1454: }
1455: #
1456: # Datestamp
1457: my $description = $ENV{'course.'.$ENV{'request.course.id'}.'.description'};
1458: print $outputfile '"'.&Apache::loncommon::csv_translate($description).'",'.
1459: '"'.&Apache::loncommon::csv_translate(scalar(localtime(time))).'"'.
1460: "\n";
1461: #
1462: # Print out the headings
1463: my $sequence_row = '';
1464: my $resource_row = undef;
1465: foreach my $field (&get_student_fields_to_show()) {
1466: $sequence_row .='"",';
1467: $resource_row .= '"'.&Apache::loncommon::csv_translate($field).'",';
1468: }
1469: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
1470: $sequence_row .= '"'.
1471: &Apache::loncommon::csv_translate($seq->{'title'}).'",';
1472: my $count = 0;
1473: if ($chosen_output->{'every_problem'}) {
1474: foreach my $res (@{$seq->{'contents'}}) {
1475: if ($res->{'type'} ne 'assessment' ||
1476: ! exists($res->{'parts'}) ||
1477: ref($res->{'parts'}) ne 'ARRAY' ||
1478: scalar(@{$res->{'parts'}}) < 1) {
1479: next;
1480: }
1481: foreach my $part (@{$res->{'parts'}}) {
1482: $resource_row .= '"'.
1483: &Apache::loncommon::csv_translate($res->{'title'}.
1484: ', Part '.$part
1485: ).'",';
1486: $count++;
1487: }
1488: }
1489: }
1490: $sequence_row.='"",'x$count;
1491: if ($chosen_output->{'sequence_sum'}) {
1492: if($chosen_output->{'correct'}) {
1493: $resource_row .= '"sum",';
1494: } else {
1495: $resource_row .= '"score",';
1496: }
1497: }
1498: if ($chosen_output->{'sequence_max'}) {
1499: $sequence_row.= '"",';
1500: $resource_row .= '"maximum possible",';
1501: }
1502: }
1503: if ($chosen_output->{'grand_total'}) {
1504: $sequence_row.= '"",';
1505: $resource_row.= '"Total",';
1506: }
1507: chomp($sequence_row);
1508: chomp($resource_row);
1509: print $outputfile $sequence_row."\n";
1510: print $outputfile $resource_row."\n";
1511: return;
1512: }
1513:
1514: sub csv_outputstudent {
1515: my ($r,$student) = @_;
1516: return if ($request_aborted);
1517: return if (! defined($outputfile));
1518: my $Str = '';
1519: #
1520: # Output student fields
1521: my @to_show = &get_student_fields_to_show();
1522: foreach my $field (@to_show) {
1523: $Str .= '"'.&Apache::loncommon::csv_translate($student->{$field}).'",';
1524: }
1525: #
1526: # Get student assessment data
1527: my %StudentsData;
1528: my @tmp = &Apache::loncoursedata::get_current_state($student->{'username'},
1529: $student->{'domain'},
1530: undef,
1531: $ENV{'request.course.id'});
1532: if ((scalar @tmp > 0) && ($tmp[0] !~ /^error:/)) {
1533: %StudentsData = @tmp;
1534: }
1535: #
1536: # Output performance data
1537: my $total = 0;
1538: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
1539: my ($performance,$performance_length,$score,$seq_max,$rawdata);
1540: if ($chosen_output->{'tries'}){
1541: ($performance,$performance_length,$score,$seq_max,$rawdata) =
1542: &StudentTriesOnSequence($student,\%StudentsData,
1543: $seq,'no');
1544: } else {
1545: ($performance,$performance_length,$score,$seq_max,$rawdata) =
1546: &StudentPerformanceOnSequence($student,\%StudentsData,
1547: $seq,'no');
1548: }
1549: if ($chosen_output->{'every_problem'}) {
1550: if ($chosen_output->{'correct'}) {
1551: $score = 0;
1552: # Deal with number of parts correct data
1553: $Str .= '"'.join('","',( map { if ($_>0) {
1554: $score += 1;
1555: 1;
1556: } else {
1557: 0;
1558: }
1559: } @$rawdata)).'",';
1560: } else {
1561: $Str .= '"'.join('","',(@$rawdata)).'",';
1562: }
1563: }
1564: if ($chosen_output->{'sequence_sum'}) {
1565: $Str .= '"'.$score.'",';
1566: }
1567: if ($chosen_output->{'sequence_max'}) {
1568: $Str .= '"'.$seq_max.'",';
1569: }
1570: $total+=$score;
1571: }
1572: if ($chosen_output->{'grand_total'}) {
1573: $Str .= '"'.$total.'",';
1574: }
1575: chop($Str);
1576: $Str .= "\n";
1577: print $outputfile $Str;
1578: #
1579: # Update the progress window
1580: &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,'last student');
1581: return;
1582: }
1583:
1584: sub csv_finish {
1585: my ($r) = @_;
1586: return if ($request_aborted);
1587: return if (! defined($outputfile));
1588: close($outputfile);
1589: #
1590: my $c = $r->connection();
1591: return if ($c->aborted());
1592: #
1593: # Close the progress window
1594: &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
1595: #
1596: # Tell the user where to get their csv file
1597: $r->print('<br />'.
1598: '<a href="'.$filename.'">Your csv file.</a>'."\n");
1599: $r->rflush();
1600: return;
1601:
1602: }
1603:
1604: }
1605:
1606: #######################################################
1607: #######################################################
1608:
1609: =pod
1610:
1611: =item &StudentTriesOnSequence()
1612:
1613: Inputs:
1614:
1615: =over 4
1616:
1617: =item $student
1618:
1619: =item $studentdata Hash ref to all student data
1620:
1621: =item $seq Hash ref, the sequence we are working on
1622:
1623: =item $links if defined we will output links to each resource.
1624:
1625: =back
1626:
1627: =cut
1628:
1629: #######################################################
1630: #######################################################
1631: sub StudentTriesOnSequence {
1632: my ($student,$studentdata,$seq,$links) = @_;
1633: $links = 'no' if (! defined($links));
1634: my $Str = '';
1635: my ($sum,$max) = (0,0);
1636: my $performance_length = 0;
1637: my @TriesData = ();
1638: my $tries;
1639: foreach my $resource (@{$seq->{'contents'}}) {
1640: next if ($resource->{'type'} ne 'assessment');
1641: my $resource_data = $studentdata->{$resource->{'symb'}};
1642: my $value = '';
1643: foreach my $partnum (@{$resource->{'parts'}}) {
1644: $tries = undef;
1645: $max++;
1646: $performance_length++;
1647: my $symbol = ' '; # default to space
1648: #
1649: my $awarded = 0;
1650: if (exists($resource_data->{'resource.'.$partnum.'.awarded'})) {
1651: $awarded = $resource_data->{'resource.'.$partnum.'.awarded'};
1652: $awarded = 0 if (! $awarded);
1653: }
1654: #
1655: my $status = '';
1656: if (exists($resource_data->{'resource.'.$partnum.'.solved'})) {
1657: $status = $resource_data->{'resource.'.$partnum.'.solved'};
1658: }
1659: #
1660: my $tries = 0;
1661: if(exists($resource_data->{'resource.'.$partnum.'.tries'})) {
1662: $tries = $resource_data->{'resource.'.$partnum.'.tries'};
1663: }
1664: #
1665: if ($awarded > 0) {
1666: # The student has gotten the problem correct to some degree
1667: if ($status eq 'excused') {
1668: $symbol = 'x';
1669: $max--;
1670: } elsif ($status eq 'correct_by_override') {
1671: $symbol = '+';
1672: $sum++;
1673: } elsif ($tries > 0) {
1674: if ($tries > 9) {
1675: $symbol = '*';
1676: } else {
1677: $symbol = $tries;
1678: }
1679: $sum++;
1680: } else {
1681: $symbol = '+';
1682: $sum++;
1683: }
1684: } else {
1685: # The student has the problem incorrect or it is ungraded
1686: if ($status eq 'excused') {
1687: $symbol = 'x';
1688: $max--;
1689: } elsif ($status eq 'incorrect_by_override') {
1690: $symbol = '-';
1691: } elsif ($status eq 'ungraded_attempted') {
1692: $symbol = '#';
1693: } elsif ($status eq 'incorrect_attempted' ||
1694: $tries > 0) {
1695: $symbol = '.';
1696: } else {
1697: # Problem is wrong and has not been attempted.
1698: $symbol=' ';
1699: }
1700: }
1701: #
1702: if (! defined($tries)) {
1703: $tries = $symbol;
1704: }
1705: push (@TriesData,$tries);
1706: #
1707: if ( ($links eq 'yes' && $symbol ne ' ') ||
1708: ($links eq 'all')) {
1709: if (length($symbol) > 1) {
1710: &Apache::lonnet::logthis('length of symbol "'.$symbol.'" > 1');
1711: }
1712: $symbol = '<a href="/adm/grades'.
1713: '?symb='.&Apache::lonnet::escape($resource->{'symb'}).
1714: '&student='.$student->{'username'}.
1715: '&userdom='.$student->{'domain'}.
1716: '&command=submission">'.$symbol.'</a>';
1717: }
1718: $value .= $symbol;
1719: }
1720: $Str .= $value;
1721: }
1722: if ($seq->{'randompick'}) {
1723: $max = $seq->{'randompick'};
1724: }
1725: return ($Str,$performance_length,$sum,$max,\@TriesData);
1726: }
1727:
1728: #######################################################
1729: #######################################################
1730:
1731: =pod
1732:
1733: =item &StudentPerformanceOnSequence()
1734:
1735: Inputs:
1736:
1737: =over 4
1738:
1739: =item $student
1740:
1741: =item $studentdata Hash ref to all student data
1742:
1743: =item $seq Hash ref, the sequence we are working on
1744:
1745: =item $links if defined we will output links to each resource.
1746:
1747: =back
1748:
1749: =cut
1750:
1751: #######################################################
1752: #######################################################
1753: sub StudentPerformanceOnSequence {
1754: my ($student,$studentdata,$seq,$links) = @_;
1755: $links = 'no' if (! defined($links));
1756: my $Str = ''; # final result string
1757: my ($score,$max) = (0,0);
1758: my $performance_length = 0;
1759: my $symbol;
1760: my @ScoreData = ();
1761: my $partscore;
1762: foreach my $resource (@{$seq->{'contents'}}) {
1763: next if ($resource->{'type'} ne 'assessment');
1764: my $resource_data = $studentdata->{$resource->{'symb'}};
1765: foreach my $part (@{$resource->{'parts'}}) {
1766: $partscore = undef;
1767: my $weight = &Apache::lonnet::EXT('resource.'.$part.'.weight',
1768: $resource->{'symb'},
1769: $student->{'domain'},
1770: $student->{'username'},
1771: $student->{'section'});
1772: if (!defined($weight) || ($weight eq '')) {
1773: $weight=1;
1774: }
1775: #
1776: $max += $weight; # see the 'excused' branch below...
1777: $performance_length++; # one character per part
1778: $symbol = ' '; # default to space
1779: #
1780: my $awarded = 0;
1781: if (exists($resource_data->{'resource.'.$part.'.awarded'})) {
1782: $awarded = $resource_data->{'resource.'.$part.'.awarded'};
1783: $awarded = 0 if (! $awarded);
1784: }
1785: #
1786: $partscore = $weight*$awarded;
1787: $score += $partscore;
1788: $symbol = $partscore;
1789: if (abs($symbol - sprintf("%.0f",$symbol)) < 0.001) {
1790: $symbol = sprintf("%.0f",$symbol);
1791: }
1792: if (length($symbol) > 1) {
1793: $symbol = '*';
1794: }
1795: if (exists($resource_data->{'resource.'.$part.'.solved'})) {
1796: my $status = $resource_data->{'resource.'.$part.'.solved'};
1797: if ($status eq 'excused') {
1798: $symbol = 'x';
1799: $max -= $weight; # Do not count 'excused' problems.
1800: }
1801: } else {
1802: # Unsolved. Did they try?
1803: if (exists($resource_data->{'resource.'.$part.'.tries'})){
1804: $symbol = '.';
1805: } else {
1806: $symbol = ' ';
1807: }
1808: }
1809: #
1810: if (! defined($partscore)) {
1811: $partscore = $symbol;
1812: }
1813: push (@ScoreData,$partscore);
1814: #
1815: if ( ($links eq 'yes' && $symbol ne ' ') || ($links eq 'all')) {
1816: $symbol = '<a href="/adm/grades'.
1817: '?symb='.&Apache::lonnet::escape($resource->{'symb'}).
1818: '&student='.$student->{'username'}.
1819: '&userdom='.$student->{'domain'}.
1820: '&command=submission">'.$symbol.'</a>';
1821: }
1822: $Str .= $symbol;
1823: }
1824: }
1825: return ($Str,$performance_length,$score,$max,\@ScoreData);
1826: }
1827:
1828: #######################################################
1829: #######################################################
1830:
1831: =pod
1832:
1833: =item &CreateLegend()
1834:
1835: This function returns a formatted string containing the legend for the
1836: chart. The legend describes the symbols used to represent grades for
1837: problems.
1838:
1839: =cut
1840:
1841: #######################################################
1842: #######################################################
1843: sub CreateLegend {
1844: my $Str = "<p><pre>".
1845: " 1 correct by student in 1 try\n".
1846: " 7 correct by student in 7 tries\n".
1847: " * correct by student in more than 9 tries\n".
1848: " + correct by hand grading or override\n".
1849: " - incorrect by override\n".
1850: " . incorrect attempted\n".
1851: " # ungraded attempted\n".
1852: " not attempted (blank field)\n".
1853: " x excused".
1854: "</pre><p>";
1855: return $Str;
1856: }
1857:
1858: #######################################################
1859: #######################################################
1860:
1861: =pod
1862:
1863: =back
1864:
1865: =cut
1866:
1867: #######################################################
1868: #######################################################
1869:
1870: 1;
1871:
1872: __END__
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