1: # The LearningOnline Network with CAPA
2: #
3: # $Id: lonstudentassessment.pm,v 1.143 2006/08/18 15:15:38 raeburn 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 Apache::grades();
60: use Apache::lonmsgdisplay();
61: use Time::HiRes;
62: use Spreadsheet::WriteExcel;
63: use Spreadsheet::WriteExcel::Utility();
64: use lib '/home/httpd/lib/perl/';
65: use LONCAPA;
66:
67:
68: #######################################################
69: #######################################################
70: =pod
71:
72: =item Package Variables
73:
74: =over 4
75:
76: =item $Statistics Hash ref to store student data. Indexed by symb,
77: contains hashes with keys 'score' and 'max'.
78:
79: =cut
80:
81: #######################################################
82: #######################################################
83:
84: my $Statistics;
85:
86: #######################################################
87: #######################################################
88:
89: =pod
90:
91: =item $show_links 'yes' or 'no' for linking to student performance data
92:
93: =item $output_mode 'html', 'excel', or 'csv' for output mode
94:
95: =item $show 'all', 'totals', or 'scores' determines how much data is output
96:
97: =item $single_student_mode evaluates to true if we are showing only one
98: student.
99:
100: =cut
101:
102: #######################################################
103: #######################################################
104: my $show_links;
105: my $output_mode;
106: my $chosen_output;
107: my $single_student_mode;
108:
109: #######################################################
110: #######################################################
111: # End of package variable declarations
112:
113: =pod
114:
115: =back
116:
117: =cut
118:
119: #######################################################
120: #######################################################
121:
122: =pod
123:
124: =item &BuildStudentAssessmentPage()
125:
126: Inputs:
127:
128: =over 4
129:
130: =item $r Apache Request
131:
132: =item $c Apache Connection
133:
134: =back
135:
136: =cut
137:
138: #######################################################
139: #######################################################
140: sub BuildStudentAssessmentPage {
141: my ($r,$c)=@_;
142: #
143: undef($Statistics);
144: undef($show_links);
145: undef($output_mode);
146: undef($chosen_output);
147: undef($single_student_mode);
148: #
149: my %Saveable_Parameters = ('Status' => 'scalar',
150: 'chartoutputmode' => 'scalar',
151: 'chartoutputdata' => 'scalar',
152: 'Section' => 'array',
153: 'Groups' => 'array',
154: 'StudentData' => 'array',
155: 'Maps' => 'array');
156: &Apache::loncommon::store_course_settings('chart',\%Saveable_Parameters);
157: &Apache::loncommon::restore_course_settings('chart',\%Saveable_Parameters);
158: #
159: &Apache::lonstatistics::PrepareClasslist();
160: #
161: $single_student_mode = 0;
162: $single_student_mode = 1 if ($env{'form.SelectedStudent'});
163: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
164: ['selectstudent']);
165: if ($env{'form.selectstudent'}) {
166: &Apache::lonstatistics::DisplayClasslist($r);
167: return;
168: }
169: #
170: # Print out the HTML headers for the interface
171: # This also parses the output mode selector
172: # This step must *always* be done.
173: $r->print(&CreateInterface());
174: $r->print('<input type="hidden" name="notfirstrun" value="true" />');
175: $r->print('<input type="hidden" name="sort" value="'.
176: $env{'form.sort'}.'" />');
177: $r->rflush();
178: #
179: if (! exists($env{'form.notfirstrun'}) && ! $single_student_mode) {
180: return;
181: }
182: $r->print('<h4>'.
183: &Apache::lonstatistics::section_and_enrollment_description().
184: '</h4>');
185: #
186: my $initialize = \&html_initialize;
187: my $output_student = \&html_outputstudent;
188: my $finish = \&html_finish;
189: #
190: if ($output_mode eq 'excel') {
191: $initialize = \&excel_initialize;
192: $output_student = \&excel_outputstudent;
193: $finish = \&excel_finish;
194: } elsif ($output_mode eq 'csv') {
195: $initialize = \&csv_initialize;
196: $output_student = \&csv_outputstudent;
197: $finish = \&csv_finish;
198: }
199: #
200: if($c->aborted()) { return ; }
201: #
202: # Determine which students we want to look at
203: my @Students;
204: if ($single_student_mode) {
205: @Students = (&Apache::lonstatistics::current_student());
206: $r->print(&next_and_previous_buttons());
207: $r->rflush();
208: } else {
209: @Students = @Apache::lonstatistics::Students;
210: }
211: #
212: # Perform generic initialization tasks
213: # Since we use lonnet::EXT to retrieve problem weights,
214: # to ensure current data we must clear the caches out.
215: # This makes sure that parameter changes at the student level
216: # are immediately reflected in the chart.
217: &Apache::lonnet::clear_EXT_cache_status();
218: #
219: # Clean out loncoursedata's package data, just to be safe.
220: &Apache::loncoursedata::clear_internal_caches();
221: #
222: # Call the initialize routine selected above
223: $initialize->($r);
224: foreach my $student (@Students) {
225: if($c->aborted()) {
226: $finish->($r);
227: return ;
228: }
229: # Call the output_student routine selected above
230: $output_student->($r,$student);
231: }
232: # Call the "finish" routine selected above
233: $finish->($r);
234: #
235: return;
236: }
237:
238: #######################################################
239: #######################################################
240: sub next_and_previous_buttons {
241: my $Str = '';
242: $Str .= '<input type="hidden" name="SelectedStudent" value="'.
243: $env{'form.SelectedStudent'}.'" />';
244: #
245: # Build the previous student link
246: my $previous = &Apache::lonstatistics::previous_student();
247: my $previousbutton = '';
248: if (defined($previous)) {
249: my $sname = $previous->{'username'}.':'.$previous->{'domain'};
250: $previousbutton .= '<input type="button" value="'.
251: 'Previous Student ('.
252: $previous->{'username'}.'@'.$previous->{'domain'}.')'.
253: '" onclick="document.Statistics.SelectedStudent.value='.
254: "'".$sname."'".';'.
255: 'document.Statistics.submit();" />';
256: } else {
257: $previousbutton .= '<input type="button" value="'.
258: 'Previous student (none)'.'" />';
259: }
260: #
261: # Build the next student link
262: my $next = &Apache::lonstatistics::next_student();
263: my $nextbutton = '';
264: if (defined($next)) {
265: my $sname = $next->{'username'}.':'.$next->{'domain'};
266: $nextbutton .= '<input type="button" value="'.
267: 'Next Student ('.
268: $next->{'username'}.'@'.$next->{'domain'}.')'.
269: '" onclick="document.Statistics.SelectedStudent.value='.
270: "'".$sname."'".';'.
271: 'document.Statistics.submit();" />';
272: } else {
273: $nextbutton .= '<input type="button" value="'.
274: 'Next student (none)'.'" />';
275: }
276: #
277: # Build the 'all students' button
278: my $all = '';
279: $all .= '<input type="button" value="All Students" '.
280: '" onclick="document.Statistics.SelectedStudent.value='.
281: "''".';'.'document.Statistics.submit();" />';
282: $Str .= $previousbutton.(' 'x5).$all.(' 'x5).$nextbutton;
283: return $Str;
284: }
285:
286: #######################################################
287: #######################################################
288:
289: sub get_student_fields_to_show {
290: my @to_show = @Apache::lonstatistics::SelectedStudentData;
291: foreach (@to_show) {
292: if ($_ eq 'all') {
293: @to_show = @Apache::lonstatistics::StudentDataOrder;
294: last;
295: }
296: }
297: return @to_show;
298: }
299:
300: #######################################################
301: #######################################################
302:
303: =pod
304:
305: =item &CreateInterface()
306:
307: Called by &BuildStudentAssessmentPage to create the top part of the
308: page which displays the chart.
309:
310: Inputs: None
311:
312: Returns: A string containing the HTML for the headers and top table for
313: the chart page.
314:
315: =cut
316:
317: #######################################################
318: #######################################################
319: sub CreateInterface {
320: my $Str = '';
321: $Str .= &Apache::lonhtmlcommon::breadcrumbs('Chart','Chart_Description:Chart_Sections:Chart_Student_Data:Chart_Enrollment_Status:Chart_Sequences:Chart_Output_Formats:Chart_Output_Data');
322: # $Str .= &CreateLegend();
323: $Str .= '<table cellspacing="5">'."\n";
324: $Str .= '<tr>';
325: $Str .= '<td align="center"><b>'.&mt('Sections').'</b>'.
326: &Apache::loncommon::help_open_topic("Chart_Sections").
327: '</td>';
328: $Str .= '<td align="center"><b>'.&mt('Groups').'</b>'.
329: '</td>';
330: $Str .= '<td align="center"><b>'.&mt('Student Data</b>').
331: &Apache::loncommon::help_open_topic("Chart_Student_Data").
332: '</td>';
333: $Str .= '<td align="center"><b>'.&mt('Access Status').'</b>'.
334: &Apache::loncommon::help_open_topic("Chart_Enrollment_Status").
335: '</td>';
336: $Str .= '<td align="center"><b>'.&mt('Sequences and Folders').'</b>'.
337: &Apache::loncommon::help_open_topic("Chart_Sequences").
338: '</td>';
339: $Str .= '<td align="center"><b>'.&mt('Output Format').'</b>'.
340: &Apache::loncommon::help_open_topic("Chart_Output_Formats").
341: '</td>';
342: $Str .= '<td align="center"><b>'.&mt('Output Data').'</b>'.
343: &Apache::loncommon::help_open_topic("Chart_Output_Data").
344: '</td>';
345: $Str .= '</tr>'."\n";
346: #
347: $Str .= '<tr><td align="center">'."\n";
348: $Str .= &Apache::lonstatistics::SectionSelect('Section','multiple',5);
349: $Str .= '</td><td align="center">';
350: $Str .= &Apache::lonstatistics::GroupSelect('Group','multiple',5);
351: $Str .= '</td><td align="center">';
352: $Str .= &Apache::lonstatistics::StudentDataSelect('StudentData','multiple',
353: 5,undef);
354: $Str .= '</td><td>'."\n";
355: $Str .= &Apache::lonhtmlcommon::StatusOptions(undef,undef,5);
356: $Str .= '</td><td>'."\n";
357: $Str .= &Apache::lonstatistics::map_select('Maps','multiple,all',5);
358: $Str .= '</td><td>'."\n";
359: $Str .= &CreateAndParseOutputSelector();
360: $Str .= '</td><td>'."\n";
361: $Str .= &CreateAndParseOutputDataSelector();
362: $Str .= '</td></tr>'."\n";
363: $Str .= '</table>'."\n";
364: $Str .= '<input type="submit" name="Generate Chart" value="'.
365: &mt('Generate Chart').'" />';
366: $Str .= ' 'x5;
367: $Str .= '<input type="submit" name="selectstudent" value="'.
368: &mt('Select One Student').'" />';
369: $Str .= ' 'x5;
370: $Str .= '<input type="submit" name="ClearCache" value="'.
371: &mt('Clear Caches').'" />';
372: $Str .= ' 'x5;
373: $Str .=
374: &mt('Status [_1]',
375: '<input type="text" name="stats_status" size="60" value="" />');
376: $Str .= '<br />';
377: return $Str;
378: }
379:
380: #######################################################
381: #######################################################
382:
383: =pod
384:
385: =item &CreateAndParseOutputSelector()
386:
387: =cut
388:
389: #######################################################
390: #######################################################
391: my @OutputOptions =
392: ({ name => 'HTML, with links',
393: value => 'html, with links',
394: description => 'Output HTML with each symbol linked to the problem '.
395: 'which generated it.',
396: mode => 'html',
397: show_links => 'yes',
398: },
399: { name => 'HTML, with all links',
400: value => 'html, with all links',
401: description => 'Output HTML with each symbol linked to the problem '.
402: 'which generated it. '.
403: 'This includes links for unattempted problems.',
404: mode => 'html',
405: show_links => 'all',
406: },
407: { name => 'HTML, without links',
408: value => 'html, without links',
409: description => 'Output HTML. By not including links, the size of the'.
410: ' web page is greatly reduced. If your browser crashes on the '.
411: 'full display, try this.',
412: mode => 'html',
413: show_links => 'no',
414: },
415: { name => 'Excel',
416: value => 'excel',
417: description => 'Output an Excel file (compatable with Excel 95).',
418: mode => 'excel',
419: show_links => 'no',
420: },
421: { name => 'CSV',
422: value => 'csv',
423: description => 'Output a comma separated values file suitable for '.
424: 'import into a spreadsheet program. Using this method as opposed '.
425: 'to Excel output allows you to organize your data before importing'.
426: ' it into a spreadsheet program.',
427: mode => 'csv',
428: show_links => 'no',
429: },
430: );
431:
432: sub OutputDescriptions {
433: my $Str = '';
434: $Str .= "<h2>Output Formats</h2>\n";
435: $Str .= "<dl>\n";
436: foreach my $outputmode (@OutputOptions) {
437: $Str .=" <dt>".$outputmode->{'name'}."</dt>\n";
438: $Str .=" <dd>".$outputmode->{'description'}."</dd>\n";
439: }
440: $Str .= "</dl>\n";
441: return $Str;
442: }
443:
444: sub CreateAndParseOutputSelector {
445: my $Str = '';
446: my $elementname = 'chartoutputmode';
447: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
448: [$elementname]);
449: #
450: # Format for output options is 'mode, restrictions';
451: my $selected = (&Apache::loncommon::get_env_multiple('form.'.$elementname))[0];
452: $selected = 'html, without links' if (!$selected);
453:
454: #
455: # Set package variables describing output mode
456: $show_links = 'no';
457: $output_mode = 'html';
458: foreach my $option (@OutputOptions) {
459: next if ($option->{'value'} ne $selected);
460: $output_mode = $option->{'mode'};
461: $show_links = $option->{'show_links'};
462: }
463:
464: #
465: # Build the form element
466: $Str = qq/<select size="5" name="$elementname">/;
467: foreach my $option (@OutputOptions) {
468: $Str .= "\n".' <option value="'.$option->{'value'}.'"';
469: $Str .= " selected " if ($option->{'value'} eq $selected);
470: $Str .= ">".&mt($option->{'name'})."<\/option>";
471: }
472: $Str .= "\n</select>";
473: return $Str;
474: }
475:
476: ##
477: ## Data selector stuff
478: ##
479: my @OutputDataOptions =
480: (
481: { name => 'Scores Summary',
482: base => 'scores',
483: value => 'sum and total',
484: scores => 1,
485: tries => 0,
486: every_problem => 0,
487: sequence_sum => 1,
488: sequence_max => 1,
489: grand_total => 1,
490: grand_maximum => 1,
491: summary_table => 1,
492: maximum_row => 1,
493: ignore_weight => 0,
494: shortdesc => 'Total Score and Maximum Possible for each '.
495: 'Sequence or Folder',
496: longdesc => 'The score of each student as well as the '.
497: ' maximum possible on each Sequence or Folder.',
498: },
499: { name => 'Scores Per Problem',
500: base => 'scores',
501: value => 'scores',
502: scores => 1,
503: tries => 0,
504: correct => 0,
505: every_problem => 1,
506: sequence_sum => 1,
507: sequence_max => 1,
508: grand_total => 1,
509: grand_maximum => 1,
510: summary_table => 1,
511: maximum_row => 1,
512: ignore_weight => 0,
513: shortdesc => 'Score on each Problem Part',
514: longdesc =>'The students score on each problem part, computed as'.
515: 'the part weight * part awarded',
516: },
517: { name =>'Tries',
518: base =>'tries',
519: value => 'tries',
520: scores => 0,
521: tries => 1,
522: correct => 0,
523: every_problem => 1,
524: sequence_sum => 0,
525: sequence_max => 0,
526: grand_total => 0,
527: grand_maximum => 0,
528: summary_table => 0,
529: maximum_row => 0,
530: ignore_weight => 0,
531: shortdesc => 'Number of Tries before success on each Problem Part',
532: longdesc =>'The number of tries before success on each problem part.',
533: non_html_notes => 'negative values indicate an incorrect problem',
534: },
535: { name =>'Parts Correct',
536: base =>'tries',
537: value => 'parts correct total',
538: scores => 0,
539: tries => 0,
540: correct => 1,
541: every_problem => 1,
542: sequence_sum => 1,
543: sequence_max => 1,
544: grand_total => 1,
545: grand_maximum => 1,
546: summary_table => 1,
547: maximum_row => 0,
548: ignore_weight => 1,
549: shortdesc => 'Number of Problem Parts completed successfully.',
550: longdesc => 'The Number of Problem Parts completed successfully and '.
551: 'the maximum possible for each student',
552: },
553: );
554:
555: sub HTMLifyOutputDataDescriptions {
556: my $Str = '';
557: $Str .= "<h2>Output Data</h2>\n";
558: $Str .= "<dl>\n";
559: foreach my $option (@OutputDataOptions) {
560: $Str .= ' <dt>'.$option->{'name'}.'</dt>';
561: $Str .= '<dd>'.$option->{'longdesc'}.'</dd>'."\n";
562: }
563: $Str .= "</dl>\n";
564: return $Str;
565: }
566:
567: sub CreateAndParseOutputDataSelector {
568: my $Str = '';
569: my $elementname = 'chartoutputdata';
570: #
571: my $selected = (&Apache::loncommon::get_env_multiple('form.'.$elementname))[0];
572: $selected = 'scores' if (!$selected);
573:
574: #
575: $chosen_output = $OutputDataOptions[0];
576: foreach my $option (@OutputDataOptions) {
577: if ($option->{'value'} eq $selected) {
578: $chosen_output = $option;
579: }
580: }
581: #
582: # Build the form element
583: $Str = qq/<select size="5" name="$elementname">/;
584: foreach my $option (@OutputDataOptions) {
585: $Str .= "\n".' <option value="'.$option->{'value'}.'"';
586: $Str .= " selected " if ($option->{'value'} eq $chosen_output->{'value'});
587: $Str .= ">".&mt($option->{'name'})."<\/option>";
588: }
589: $Str .= "\n</select>";
590: return $Str;
591:
592: }
593:
594: #######################################################
595: #######################################################
596: sub count_parts {
597: my ($navmap,$sequence) = @_;
598: my @resources = &get_resources($navmap,$sequence);
599: my $count = 0;
600: foreach my $res (@resources) {
601: $count += scalar(@{$res->parts});
602: }
603: return $count;
604: }
605:
606: sub get_resources {
607: my ($navmap,$sequence) = @_;
608: my @resources = $navmap->retrieveResources($sequence,
609: sub { shift->is_problem(); },
610: 0,0,0);
611: return @resources;
612: }
613:
614: #######################################################
615: #######################################################
616:
617: =pod
618:
619: =head2 HTML output routines
620:
621: =item &html_initialize($r)
622:
623: Create labels for the columns of student data to show.
624:
625: =item &html_outputstudent($r,$student)
626:
627: Return a line of the chart for a student.
628:
629: =item &html_finish($r)
630:
631: =cut
632:
633: #######################################################
634: #######################################################
635: {
636: my $padding;
637: my $count;
638:
639: my $nodata_count; # The number of students for which there is no data
640: my %prog_state; # progress state used by loncommon PrgWin routines
641: my $total_sum_width;
642:
643: my %width; # Holds sequence width information
644: my @sequences;
645: my $navmap; # Have to keep this around since weakref is a bit zealous
646:
647: sub html_cleanup {
648: undef(%prog_state);
649: undef(%width);
650: #
651: undef($navmap);
652: undef(@sequences);
653: }
654:
655: sub html_initialize {
656: my ($r) = @_;
657: #
658: $padding = ' 'x3;
659: $count = 0;
660: $nodata_count = 0;
661: &html_cleanup();
662: ($navmap,@sequences) =
663: &Apache::lonstatistics::selected_sequences_with_assessments();
664: if (! ref($navmap)) {
665: # Unable to get data, so bail out
666: $r->print("<h3>".
667: &mt('Unable to retrieve course information.').
668: '</h3>');
669: }
670:
671: # If we're showing links, show a checkbox to open in new
672: # windows.
673: if ($show_links ne 'no') {
674: $r->print(<<NEW_WINDOW_CHECKBOX);
675: <script type="text/javascript">new_window = true;</script>
676: <p><label>Show links in new window:
677: <input type="checkbox" checked="1" onclick="new_window=this.checked" />
678: </label></p>
679: NEW_WINDOW_CHECKBOX
680: }
681:
682: #
683: $r->print("<h3>".$env{'course.'.$env{'request.course.id'}.'.description'}.
684: " ".localtime(time)."</h3>");
685: #
686: if ($chosen_output->{'base'} !~ /^final table/) {
687: $r->print("<h3>".$chosen_output->{'shortdesc'}."</h3>");
688: }
689: my $Str = "<pre>\n";
690: # First, the @StudentData fields need to be listed
691: my @to_show = &get_student_fields_to_show();
692: foreach my $field (@to_show) {
693: my $title=$Apache::lonstatistics::StudentData{$field}->{'title'};
694: my $base =$Apache::lonstatistics::StudentData{$field}->{'base_width'};
695: my $width=$Apache::lonstatistics::StudentData{$field}->{'width'};
696: $Str .= $title.' 'x($width-$base).$padding;
697: }
698: #
699: # Compute the column widths and output the sequence titles
700: my $total_count;
701: #
702: # Compute sequence widths
703: my $starttime = Time::HiRes::time;
704: foreach my $seq (@sequences) {
705: my $symb = $seq->symb;
706: my $title = $seq->compTitle;
707: $width{$symb}->{'width_sum'} = 0;
708: # Compute width of sum
709: if ($chosen_output->{'sequence_sum'}) {
710: if ($chosen_output->{'every_problem'}) {
711: # Use 1 digit for a space
712: $width{$symb}->{'width_sum'} += 1;
713: }
714: $total_count += &count_parts($navmap,$seq);
715: # Use 3 digits for the sum
716: $width{$symb}->{'width_sum'} += 3;
717: }
718: # Compute width of maximum
719: if ($chosen_output->{'sequence_max'}) {
720: if ($width{$symb}->{'width_sum'}>0) {
721: # One digit for the '/'
722: $width{$symb}->{'width_sum'} +=1;
723: }
724: # Use 3 digits for the total
725: $width{$symb}->{'width_sum'}+=3;
726: }
727: #
728: if ($chosen_output->{'every_problem'}) {
729: # one problem per digit
730: $width{$symb}->{'width_parts'}= &count_parts($navmap,$seq);
731: $width{$symb}->{'width_problem'} += $width{$symb}->{'width_parts'};
732: } else {
733: $width{$symb}->{'width_problem'} = 0;
734: }
735: $width{$symb}->{'width_total'} = $width{$symb}->{'width_problem'} +
736: $width{$symb}->{'width_sum'};
737: if ($width{$symb}->{'width_total'} < length(&HTML::Entities::decode($title))) {
738: $width{$symb}->{'width_total'} = length(&HTML::Entities::decode($title));
739: }
740: #
741: # Output the sequence titles
742: $Str .= $title.(' 'x($width{$symb}->{'width_total'}-
743: length($title)
744: )).$padding;
745: }
746: $total_sum_width = length($total_count)+1;
747: $Str .= " total</pre>\n";
748: $Str .= "<pre>";
749: $r->print($Str);
750: $r->rflush();
751:
752: $r->print(<<JS);
753: <script type="text/javascript">
754: // get the left offset of a given widget as an absolute position
755: function getLeftOffset (element) {
756: return collect(element, "offsetLeft");
757: }
758:
759: // get the top offset of a given widget as an absolute position
760: function getTopOffset (element) {
761: return collect(element, "offsetTop");
762: }
763:
764: function collect(element, att) {
765: var val = 0;
766: while(element) {
767: val += element[att];
768: element = element.offsetParent;
769: }
770: return val;
771: }
772:
773: var currentDiv;
774: var currentElement;
775: function popup_score(element, score) {
776: popdown_score();
777: var left = getLeftOffset(element);
778: var top = getTopOffset(element);
779: var div = document.createElement("div");
780: div.className = "LC_chrt_popup";
781: div.appendChild(document.createTextNode(score));
782: div.style.position = "absolute";
783: div.style.top = (top - 25) + "px";
784: div.style.left = (left - 10) + "px";
785: currentDiv = div;
786: document.body.insertBefore(div, document.body.childNodes[0]);
787: element.className = "LC_chrt_popup_up";
788: currentElement = element;
789: }
790:
791: function popdown_score() {
792: if (currentDiv) {
793: document.body.removeChild(currentDiv);
794: }
795: if (currentElement) {
796: currentElement.className = 'LC_chrt_popup_exists';
797: }
798: currentDiv = undefined;
799: }
800: </script>
801: JS
802:
803: #
804: # Let the user know what we are doing
805: my $studentcount = scalar(@Apache::lonstatistics::Students);
806: if ($env{'form.SelectedStudent'}) {
807: $studentcount = '1';
808: }
809: #
810: # Initialize progress window
811: %prog_state=&Apache::lonhtmlcommon::Create_PrgWin
812: ($r,'HTML Chart Status',
813: 'HTML Chart Progress', $studentcount,
814: 'inline',undef,'Statistics','stats_status');
815: #
816: &Apache::lonhtmlcommon::Update_PrgWin($r,\%prog_state,
817: 'Processing first student');
818: return;
819: }
820:
821: sub html_outputstudent {
822: my ($r,$student) = @_;
823: my $Str = '';
824: return if (! defined($navmap));
825: #
826: if($count++ % 5 == 0 && $count > 0) {
827: $r->print("</pre><pre>");
828: }
829: # First, the @StudentData fields need to be listed
830: my @to_show = &get_student_fields_to_show();
831: foreach my $field (@to_show) {
832: my $title=$student->{$field};
833: # Deal with 'comments' - how I love special cases
834: if ($field eq 'comments') {
835: $title = '<a href="/adm/'.$student->{'domain'}.'/'.$student->{'username'}.'/'.'aboutme#coursecomment">'.&mt('Comments').'</a>';
836: }
837: my $base = length($title);
838: my $width=$Apache::lonstatistics::StudentData{$field}->{'width'};
839: $Str .= $title.' 'x($width-$base).$padding;
840: }
841: # Get ALL the students data
842: my %StudentsData;
843: my @tmp = &Apache::loncoursedata::get_current_state
844: ($student->{'username'},$student->{'domain'},undef,
845: $env{'request.course.id'});
846: if ((scalar @tmp > 0) && ($tmp[0] !~ /^error:/)) {
847: %StudentsData = @tmp;
848: }
849: if (scalar(@tmp) < 1) {
850: $nodata_count++;
851: $Str .= '<font color="blue">No Course Data</font>'."\n";
852: $r->print($Str);
853: $r->rflush();
854: return;
855: }
856: #
857: # By sequence build up the data
858: my $studentstats;
859: my $PerformanceStr = '';
860: foreach my $seq (@sequences) {
861: my $symb = $seq->symb;
862: my ($performance,$performance_length,$score,$seq_max,$rawdata);
863: if ($chosen_output->{'tries'}) {
864: ($performance,$performance_length,$score,$seq_max,$rawdata) =
865: &student_tries_on_sequence($student,\%StudentsData,
866: $navmap,$seq,$show_links);
867: } else {
868: ($performance,$performance_length,$score,$seq_max,$rawdata) =
869: &student_performance_on_sequence($student,\%StudentsData,
870: $navmap,$seq,$show_links,
871: $chosen_output->{ignore_weight});
872: }
873: my $ratio='';
874: if ($chosen_output->{'every_problem'} &&
875: $chosen_output->{'sequence_sum'}) {
876: $ratio .= ' ';
877: }
878: if ($chosen_output->{'sequence_sum'} && $score ne ' ') {
879: my $score .= sprintf("%3.0f",$score);
880: $ratio .= (' 'x(3-length($score))).$score;
881: } elsif($chosen_output->{'sequence_sum'}) {
882: $ratio .= ' 'x3;
883: }
884: if ($chosen_output->{'sequence_max'}) {
885: if ($chosen_output->{'sequence_sum'}) {
886: $ratio .= '/';
887: }
888: $ratio .= sprintf("%3.0f",$seq_max);
889: }
890: #
891: if (! $chosen_output->{'every_problem'}) {
892: $performance = '';
893: $performance_length=0;
894: }
895: $performance .= ' 'x($width{$symb}->{'width_total'} -
896: $performance_length -
897: $width{$symb}->{'width_sum'}).
898: $ratio;
899: #
900: $Str .= $performance.$padding;
901: #
902: $studentstats->{$symb}->{'score'}= $score;
903: $studentstats->{$symb}->{'max'} = $seq_max;
904: }
905: #
906: # Total it up and store the statistics info.
907: my ($score,$max);
908: while (my ($symb,$seq_stats) = each (%{$studentstats})) {
909: $Statistics->{$symb}->{'score'} += $seq_stats->{'score'};
910: if ($Statistics->{$symb}->{'max'} < $seq_stats->{'max'}) {
911: $Statistics->{$symb}->{'max'} = $seq_stats->{'max'};
912: }
913: if ($seq_stats->{'score'} ne ' ') {
914: $score += $seq_stats->{'score'};
915: $Statistics->{$symb}->{'num_students'}++;
916: }
917: $max += $seq_stats->{'max'};
918: }
919: if (! defined($score)) {
920: $score = ' ' x $total_sum_width;
921: } else {
922: $score = sprintf("%.0f",$score);
923: $score = (' 'x(3-length($score))).$score;
924: }
925: $Str .= ' '.' 'x($total_sum_width-length($score)).$score.' / '.$max;
926: $Str .= " \n";
927: #
928: $r->print($Str);
929: #
930: $r->rflush();
931: &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,'last student');
932: return;
933: }
934:
935: sub html_finish {
936: my ($r) = @_;
937: return if (! defined($navmap));
938: #
939: # Check for suppressed output and close the progress window if so
940: $r->print("</pre>\n");
941: if ($chosen_output->{'summary_table'}) {
942: if ($single_student_mode) {
943: $r->print(&SingleStudentTotal());
944: } else {
945: $r->print(&StudentAverageTotal());
946: }
947: }
948: $r->rflush();
949: &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
950: &html_cleanup();
951: return;
952: }
953:
954: sub StudentAverageTotal {
955: my $Str = '<h3>'.&mt('Summary Tables').'</h3>'.$/;
956: $Str .= '<table border=2 cellspacing="1">'."\n";
957: $Str .= '<tr>'.
958: '<th>'.&mt('Title').'</th>'.
959: '<th>'.&mt('Average').'</th>'.
960: '<th>'.&mt('Maximum').'</th>'.
961: '</tr>'.$/;
962: foreach my $seq (@sequences) {
963: my $symb = $seq->symb;
964: my $ave;
965: my $num_students = $Statistics->{$symb}->{'num_students'};
966: if ($num_students > 0) {
967: $ave = int(100*
968: ($Statistics->{$symb}->{'score'}/$num_students)
969: )/100;
970: } else {
971: $ave = 0;
972: }
973: my $max = $Statistics->{$symb}->{'max'};
974: $ave = sprintf("%.2f",$ave);
975: $Str .= '<tr><td>'.$seq->compTitle.'</td>'.
976: '<td align="right">'.$ave.' </td>'.
977: '<td align="right">'.$max.' '.'</td></tr>'."\n";
978: }
979: $Str .= "</table>\n";
980: return $Str;
981: }
982:
983: sub SingleStudentTotal {
984: return if (! defined($navmap));
985: my $student = &Apache::lonstatistics::current_student();
986: my $Str = '<h3>'.&mt('Summary table for [_1] ([_2]@[_3])',
987: $student->{'fullname'},
988: $student->{'username'},$student->{'domain'}).'</h3>';
989: $Str .= $/;
990: $Str .= '<table border=2 cellspacing="1">'."\n";
991: $Str .=
992: '<tr>'.
993: '<th>'.&mt('Sequence or Folder').'</th>';
994: if ($chosen_output->{'base'} eq 'tries') {
995: $Str .= '<th>'.&mt('Parts Correct').'</th>';
996: } else {
997: $Str .= '<th>'.&mt('Score').'</th>';
998: }
999: $Str .= '<th>'.&mt('Maximum').'</th>'."</tr>\n";
1000: my $total = 0;
1001: my $total_max = 0;
1002: foreach my $seq (@sequences) {
1003: my $value = $Statistics->{$seq->symb}->{'score'};
1004: my $max = $Statistics->{$seq->symb}->{'max'};
1005: $Str .= '<tr><td>'.&HTML::Entities::encode($seq->compTitle).'</td>'.
1006: '<td align="right">'.$value.'</td>'.
1007: '<td align="right">'.$max.'</td></tr>'."\n";
1008: $total += $value;
1009: $total_max +=$max;
1010: }
1011: $Str .= '<tr><td><b>'.&mt('Total').'</b></td>'.
1012: '<td align="right">'.$total.'</td>'.
1013: '<td align="right">'.$total_max."</td></tr>\n";
1014: $Str .= "</table>\n";
1015: return $Str;
1016: }
1017:
1018: }
1019:
1020: #######################################################
1021: #######################################################
1022:
1023: =pod
1024:
1025: =head2 EXCEL subroutines
1026:
1027: =item &excel_initialize($r)
1028:
1029: =item &excel_outputstudent($r,$student)
1030:
1031: =item &excel_finish($r)
1032:
1033: =cut
1034:
1035: #######################################################
1036: #######################################################
1037: {
1038:
1039: my $excel_sheet;
1040: my $excel_workbook;
1041: my $format;
1042:
1043: my $filename;
1044: my $rows_output;
1045: my $cols_output;
1046:
1047: my %prog_state; # progress window state
1048: my $request_aborted;
1049:
1050: my $total_formula;
1051: my $maximum_formula;
1052: my %formula_data;
1053:
1054: my $navmap;
1055: my @sequences;
1056:
1057: sub excel_cleanup {
1058: #
1059: undef ($excel_sheet);
1060: undef ($excel_workbook);
1061: undef ($filename);
1062: undef ($rows_output);
1063: undef ($cols_output);
1064: undef (%prog_state);
1065: undef ($request_aborted);
1066: undef ($total_formula);
1067: undef ($maximum_formula);
1068: #
1069: undef(%formula_data);
1070: #
1071: undef($navmap);
1072: undef(@sequences);
1073: }
1074:
1075: sub excel_initialize {
1076: my ($r) = @_;
1077:
1078: &excel_cleanup();
1079: ($navmap,@sequences) =
1080: &Apache::lonstatistics::selected_sequences_with_assessments();
1081: if (! ref($navmap)) {
1082: # Unable to get data, so bail out
1083: $r->print("<h3>".
1084: &mt('Unable to retrieve course information.').
1085: '</h3>');
1086: }
1087: #
1088: my $total_columns = scalar(&get_student_fields_to_show());
1089: my $num_students = scalar(@Apache::lonstatistics::Students);
1090: #
1091: foreach my $seq (@sequences) {
1092: if ($chosen_output->{'every_problem'}) {
1093: $total_columns+=&count_parts($navmap,$seq);
1094: }
1095: # Add 2 because we need a 'sequence_sum' and 'total' column for each
1096: $total_columns += 2;
1097: }
1098: my $too_many_cols_error_message =
1099: '<h2>'.&mt('Unable to Complete Request').'</h2>'.$/.
1100: '<p>'.&mt('LON-CAPA is unable to produce your Excel spreadsheet because your selections will result in more than 255 columns. Excel allows only 255 columns in a spreadsheet.').'</p>'.$/.
1101: '<p>'.&mt('You may consider reducing the number of <b>Sequences or Folders</b> you have selected.').'</p>'.$/.
1102: '<p>'.&mt('LON-CAPA can produce <b>CSV</b> files of this data or Excel files of the <b>Scores Summary</b> data.').'</p>'.$/;
1103: if ($chosen_output->{'base'} eq 'tries' && $total_columns > 255) {
1104: $r->print($too_many_cols_error_message);
1105: $request_aborted = 1;
1106: }
1107: if ($chosen_output->{'base'} eq 'scores' && $total_columns > 255) {
1108: $r->print($too_many_cols_error_message);
1109: $request_aborted = 1;
1110: }
1111: return if ($request_aborted);
1112: #
1113: #
1114: $excel_workbook = undef;
1115: $excel_sheet = undef;
1116: #
1117: $rows_output = 0;
1118: $cols_output = 0;
1119: #
1120: # Determine rows
1121: my $header_row = $rows_output++;
1122: my $description_row = $rows_output++;
1123: my $notes_row = $rows_output++;
1124: $rows_output++; # blank row
1125: my $summary_header_row;
1126: if ($chosen_output->{'summary_table'}) {
1127: $summary_header_row = $rows_output++;
1128: $rows_output+= scalar(@sequences);
1129: $rows_output++;
1130: }
1131: my $sequence_name_row = $rows_output++;
1132: my $resource_name_row = $rows_output++;
1133: my $maximum_data_row = $rows_output++;
1134: if (! $chosen_output->{'maximum_row'}) {
1135: $rows_output--;
1136: }
1137: my $first_data_row = $rows_output++;
1138: #
1139: # Create sheet
1140: ($excel_workbook,$filename,$format)=
1141: &Apache::loncommon::create_workbook($r);
1142: return if (! defined($excel_workbook));
1143: #
1144: # Add a worksheet
1145: my $sheetname = $env{'course.'.$env{'request.course.id'}.'.description'};
1146: $sheetname = &Apache::loncommon::clean_excel_name($sheetname);
1147: $excel_sheet = $excel_workbook->addworksheet($sheetname);
1148: #
1149: # Put the course description in the header
1150: $excel_sheet->write($header_row,$cols_output++,
1151: $env{'course.'.$env{'request.course.id'}.'.description'},
1152: $format->{'h1'});
1153: $cols_output += 3;
1154: #
1155: # Put a description of the sections listed
1156: my $sectionstring = '';
1157: my @Sections = &Apache::lonstatistics::get_selected_sections();
1158: $excel_sheet->write($header_row,$cols_output++,
1159: &Apache::lonstatistics::section_and_enrollment_description('plaintext'),
1160: $format->{'h3'});
1161: #
1162: # Put the date in there too
1163: $excel_sheet->write($header_row,$cols_output++,
1164: 'Compiled on '.localtime(time),$format->{'h3'});
1165: #
1166: $cols_output = 0;
1167: $excel_sheet->write($description_row,$cols_output++,
1168: $chosen_output->{'shortdesc'},
1169: $format->{'b'});
1170: #
1171: $cols_output = 0;
1172: $excel_sheet->write($notes_row,$cols_output++,
1173: $chosen_output->{'non_html_notes'},
1174: $format->{'i'});
1175:
1176: ##############################################
1177: # Output headings for the raw data
1178: ##############################################
1179: #
1180: # Add the student headers
1181: $cols_output = 0;
1182: foreach my $field (&get_student_fields_to_show()) {
1183: $excel_sheet->write($resource_name_row,$cols_output++,$field,
1184: $format->{'bold'});
1185: }
1186: #
1187: # Add the remaining column headers
1188: my $total_formula_string = '=0';
1189: my $maximum_formula_string = '=0';
1190: foreach my $seq (@sequences) {
1191: my $symb = $seq->symb;
1192: $excel_sheet->write($sequence_name_row,,
1193: $cols_output,$seq->compTitle,$format->{'bold'});
1194: # Determine starting cell
1195: $formula_data{$symb}->{'Excel:startcell'}=
1196: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1197: ($first_data_row,$cols_output);
1198: $formula_data{$symb}->{'Excel:startcol'}=$cols_output;
1199: my $count = 0;
1200: if ($chosen_output->{'every_problem'}) {
1201: # Put the names of the problems and parts into the sheet
1202: foreach my $res (&get_resources($navmap,$seq)) {
1203: if (scalar(@{$res->parts}) > 1) {
1204: foreach my $part (@{$res->parts}) {
1205: $excel_sheet->write($resource_name_row,
1206: $cols_output++,
1207: $res->compTitle.' part '.$res->part_display($part),
1208: $format->{'bold'});
1209: $count++;
1210: }
1211: } else {
1212: $excel_sheet->write($resource_name_row,
1213: $cols_output++,
1214: $res->compTitle,$format->{'bold'});
1215: $count++;
1216: }
1217: }
1218: }
1219: # Determine ending cell
1220: if ($count <= 1) {
1221: $formula_data{$symb}->{'Excel:endcell'} = $formula_data{$symb}->{'Excel:startcell'};
1222: $formula_data{$symb}->{'Excel:endcol'} = $formula_data{$symb}->{'Excel:startcol'};
1223: } else {
1224: $formula_data{$symb}->{'Excel:endcell'} =
1225: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1226: ($first_data_row,$cols_output-1);
1227: $formula_data{$symb}->{'Excel:endcol'} = $cols_output-1;
1228: }
1229: # Create the formula for summing up this sequence
1230: if (! exists($formula_data{$symb}->{'Excel:endcell'}) ||
1231: ! defined($formula_data{$symb}->{'Excel:endcell'})) {
1232: $formula_data{$symb}->{'Excel:endcell'} = $formula_data{$symb}->{'Excel:startcell'};
1233: }
1234:
1235: my $start = $formula_data{$symb}->{'Excel:startcell'};
1236: my $end = $formula_data{$symb}->{'Excel:endcell'};
1237: $formula_data{$symb}->{'Excel:sum'}= $excel_sheet->store_formula
1238: ("=IF(COUNT($start\:$end),SUM($start\:$end),\"\")");
1239: # Determine cell the score is held in
1240: $formula_data{$symb}->{'Excel:scorecell'} =
1241: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1242: ($first_data_row,$cols_output);
1243: $formula_data{$symb}->{'Excel:scorecol'}=$cols_output;
1244: if ($chosen_output->{'base'} eq 'parts correct total') {
1245: $excel_sheet->write($resource_name_row,$cols_output++,
1246: 'parts correct',
1247: $format->{'bold'});
1248: } elsif ($chosen_output->{'sequence_sum'}) {
1249: if ($chosen_output->{'correct'}) {
1250: # Only reporting the number correct, so do not call it score
1251: $excel_sheet->write($resource_name_row,$cols_output++,
1252: 'sum',
1253: $format->{'bold'});
1254: } else {
1255: $excel_sheet->write($resource_name_row,$cols_output++,
1256: 'score',
1257: $format->{'bold'});
1258: }
1259: }
1260: #
1261: $total_formula_string.='+'.
1262: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1263: ($first_data_row,$cols_output-1);
1264: if ($chosen_output->{'sequence_max'}) {
1265: $excel_sheet->write($resource_name_row,$cols_output,
1266: 'maximum',
1267: $format->{'bold'});
1268: $formula_data{$symb}->{'Excel:maxcell'} =
1269: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1270: ($first_data_row,$cols_output);
1271: $formula_data{$symb}->{'Excel:maxcol'}=$cols_output;
1272: $maximum_formula_string.='+'.
1273: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1274: ($first_data_row,$cols_output);
1275: $cols_output++;
1276:
1277: }
1278: }
1279: if ($chosen_output->{'grand_total'}) {
1280: $excel_sheet->write($resource_name_row,$cols_output++,'Total',
1281: $format->{'bold'});
1282: }
1283: if ($chosen_output->{'grand_maximum'}) {
1284: $excel_sheet->write($resource_name_row,$cols_output++,'Max. Total',
1285: $format->{'bold'});
1286: }
1287: $total_formula = $excel_sheet->store_formula($total_formula_string);
1288: $maximum_formula = $excel_sheet->store_formula($maximum_formula_string);
1289: ##############################################
1290: # Output a row for MAX, if appropriate
1291: ##############################################
1292: if ($chosen_output->{'maximum_row'}) {
1293: $cols_output = 0;
1294: foreach my $field (&get_student_fields_to_show()) {
1295: if ($field eq 'username' || $field eq 'fullname' ||
1296: $field eq 'id') {
1297: $excel_sheet->write($maximum_data_row,$cols_output++,'Maximum',
1298: $format->{'bold'});
1299: } else {
1300: $excel_sheet->write($maximum_data_row,$cols_output++,'');
1301: }
1302: }
1303: #
1304: # Add the maximums for each sequence or assessment
1305: my %total_cell_translation;
1306: my %maximum_cell_translation;
1307: foreach my $seq (@sequences) {
1308: my $symb = $seq->symb;
1309: $cols_output=$formula_data{$symb}->{'Excel:startcol'};
1310: $total_cell_translation{$formula_data{$symb}->{'Excel:scorecell'}}=
1311: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1312: ($maximum_data_row,$formula_data{$symb}->{'Excel:scorecol'});
1313: $maximum_cell_translation{$formula_data{$symb}->{'Excel:maxcell'}}=
1314: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1315: ($maximum_data_row,$formula_data{$symb}->{'Excel:maxcol'});
1316: my $weight;
1317: my $max = 0;
1318: foreach my $resource (&get_resources($navmap,$seq)) {
1319: foreach my $part (@{$resource->parts}){
1320: $weight = 1;
1321: if ($chosen_output->{'scores'}) {
1322: $weight = &Apache::lonnet::EXT
1323: ('resource.'.$part.'.weight',$resource->symb,
1324: undef,undef,undef);
1325: if (!defined($weight) || ($weight eq '')) {
1326: $weight=1;
1327: }
1328: }
1329: if ($chosen_output->{'scores'} &&
1330: $chosen_output->{'every_problem'}) {
1331: $excel_sheet->write($maximum_data_row,$cols_output++,
1332: $weight);
1333: }
1334: $max += $weight;
1335: }
1336: }
1337: #
1338: if ($chosen_output->{'sequence_sum'} &&
1339: $chosen_output->{'every_problem'}) {
1340: my %replaceCells=
1341: ('^'.$formula_data{$symb}->{'Excel:startcell'}.':'.
1342: $formula_data{$symb}->{'Excel:endcell'}.'$' =>
1343: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell($maximum_data_row,$formula_data{$symb}->{'Excel:startcol'}).':'.
1344: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell($maximum_data_row,$formula_data{$symb}->{'Excel:endcol'}));
1345: $excel_sheet->repeat_formula($maximum_data_row,$cols_output++,
1346: $formula_data{$symb}->{'Excel:sum'},undef,
1347: %replaceCells, %replaceCells);
1348:
1349: } elsif ($chosen_output->{'sequence_sum'}) {
1350: $excel_sheet->write($maximum_data_row,$cols_output++,$max);
1351: }
1352: if ($chosen_output->{'sequence_max'}) {
1353: $excel_sheet->write($maximum_data_row,$cols_output++,$max);
1354: }
1355: #
1356: }
1357: if ($chosen_output->{'grand_total'}) {
1358: $excel_sheet->repeat_formula($maximum_data_row,$cols_output++,
1359: $total_formula,undef,
1360: %total_cell_translation);
1361: }
1362: if ($chosen_output->{'grand_maximum'}) {
1363: $excel_sheet->repeat_formula($maximum_data_row,$cols_output++,
1364: $maximum_formula,undef,
1365: %maximum_cell_translation);
1366: }
1367: } # End of MAXIMUM row output if ($chosen_output->{'maximum_row'}) {
1368: $rows_output = $first_data_row;
1369: ##############################################
1370: # Output summary table, which actually is above the sequence name row.
1371: ##############################################
1372: if ($chosen_output->{'summary_table'}) {
1373: $cols_output = 0;
1374: $excel_sheet->write($summary_header_row,$cols_output++,
1375: 'Summary Table',$format->{'bold'});
1376: if ($chosen_output->{'maximum_row'}) {
1377: $excel_sheet->write($summary_header_row,$cols_output++,
1378: 'Maximum',$format->{'bold'});
1379: }
1380: $excel_sheet->write($summary_header_row,$cols_output++,
1381: 'Average',$format->{'bold'});
1382: $excel_sheet->write($summary_header_row,$cols_output++,
1383: 'Median',$format->{'bold'});
1384: $excel_sheet->write($summary_header_row,$cols_output++,
1385: 'Std Dev',$format->{'bold'});
1386: my $row = $summary_header_row+1;
1387: foreach my $seq (@sequences) {
1388: my $symb = $seq->symb;
1389: $cols_output = 0;
1390: $excel_sheet->write($row,$cols_output++,
1391: $seq->compTitle,
1392: $format->{'bold'});
1393: if ($chosen_output->{'maximum_row'}) {
1394: $excel_sheet->write
1395: ($row,$cols_output++,
1396: '='.
1397: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1398: ($maximum_data_row,$formula_data{$symb}->{'Excel:scorecol'})
1399: );
1400: }
1401: my $range =
1402: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1403: ($first_data_row,$formula_data{$symb}->{'Excel:scorecol'}).
1404: ':'.
1405: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1406: ($first_data_row+$num_students-1,$formula_data{$symb}->{'Excel:scorecol'});
1407: $excel_sheet->write($row,$cols_output++,
1408: '=AVERAGE('.$range.')');
1409: $excel_sheet->write($row,$cols_output++,
1410: '=MEDIAN('.$range.')');
1411: $excel_sheet->write($row,$cols_output++,
1412: '=STDEV('.$range.')');
1413: $row++;
1414: }
1415: }
1416: ##############################################
1417: # Take care of non-excel initialization
1418: ##############################################
1419: #
1420: # Let the user know what we are doing
1421: my $studentcount = scalar(@Apache::lonstatistics::Students);
1422: if ($env{'form.SelectedStudent'}) {
1423: $studentcount = '1';
1424: }
1425: if ($studentcount > 1) {
1426: $r->print('<h1>'.&mt('Compiling Excel spreadsheet for [_1] students',
1427: $studentcount)."</h1>\n");
1428: } else {
1429: $r->print('<h1>'.
1430: &mt('Compiling Excel spreadsheet for 1 student').
1431: "</h1>\n");
1432: }
1433: $r->rflush();
1434: #
1435: # Initialize progress window
1436: %prog_state=&Apache::lonhtmlcommon::Create_PrgWin
1437: ($r,'Excel File Compilation Status',
1438: 'Excel File Compilation Progress', $studentcount,
1439: 'inline',undef,'Statistics','stats_status');
1440: #
1441: &Apache::lonhtmlcommon::Update_PrgWin($r,\%prog_state,
1442: 'Processing first student');
1443: return;
1444: }
1445:
1446: sub excel_outputstudent {
1447: my ($r,$student) = @_;
1448: if ($request_aborted || ! defined($navmap) || ! defined($excel_sheet)) {
1449: return;
1450: }
1451: $cols_output=0;
1452: #
1453: # Write out student data
1454: my @to_show = &get_student_fields_to_show();
1455: foreach my $field (@to_show) {
1456: my $value = $student->{$field};
1457: if ($field eq 'comments') {
1458: $value = &Apache::lonmsgdisplay::retrieve_instructor_comments
1459: ($student->{'username'},$student->{'domain'});
1460: }
1461: $excel_sheet->write($rows_output,$cols_output++,$value);
1462: }
1463: #
1464: # Get student assessment data
1465: my %StudentsData;
1466: my @tmp = &Apache::loncoursedata::get_current_state($student->{'username'},
1467: $student->{'domain'},
1468: undef,
1469: $env{'request.course.id'});
1470: if ((scalar @tmp > 0) && ($tmp[0] !~ /^error:/)) {
1471: %StudentsData = @tmp;
1472: }
1473: #
1474: # Write out sequence scores and totals data
1475: my %total_cell_translation;
1476: my %maximum_cell_translation;
1477: foreach my $seq (@sequences) {
1478: my $symb = $seq->symb;
1479: $cols_output = $formula_data{$symb}->{'Excel:startcol'};
1480: # Keep track of cells to translate in total cell
1481: $total_cell_translation{$formula_data{$symb}->{'Excel:scorecell'}} =
1482: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1483: ($rows_output,$formula_data{$symb}->{'Excel:scorecol'});
1484: # and maximum cell
1485: $maximum_cell_translation{$formula_data{$symb}->{'Excel:maxcell'}} =
1486: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1487: ($rows_output,$formula_data{$symb}->{'Excel:maxcol'});
1488: #
1489: my ($performance,$performance_length,$score,$seq_max,$rawdata);
1490: if ($chosen_output->{'tries'} || $chosen_output->{'correct'}){
1491: ($performance,$performance_length,$score,$seq_max,$rawdata) =
1492: &student_tries_on_sequence($student,\%StudentsData,
1493: $navmap,$seq,'no');
1494: } else {
1495: ($performance,$performance_length,$score,$seq_max,$rawdata) =
1496: &student_performance_on_sequence($student,\%StudentsData,
1497: $navmap,$seq,'no',
1498: $chosen_output->{ignore_weight});
1499: }
1500: if ($chosen_output->{'every_problem'}) {
1501: if ($chosen_output->{'correct'}) {
1502: # only indiciate if each item is correct or not
1503: foreach my $value (@$rawdata) {
1504: # positive means correct, 0 or negative means
1505: # incorrect
1506: $value = $value > 0 ? 1 : 0;
1507: $excel_sheet->write($rows_output,$cols_output++,$value);
1508: }
1509: } else {
1510: foreach my $value (@$rawdata) {
1511: if ($score eq ' ' || !defined($value)) {
1512: $cols_output++;
1513: } else {
1514: $excel_sheet->write($rows_output,$cols_output++,
1515: $value);
1516: }
1517: }
1518: }
1519: }
1520: if ($chosen_output->{'sequence_sum'} &&
1521: $chosen_output->{'every_problem'}) {
1522: # Write a formula for the sum of this sequence
1523: my %replaceCells=
1524: ('^'.$formula_data{$symb}->{'Excel:startcell'}.':'.$formula_data{$symb}->{'Excel:endcell'}.'$'
1525: =>
1526: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell($rows_output,$formula_data{$symb}->{'Excel:startcol'}).':'.
1527: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell($rows_output,$formula_data{$symb}->{'Excel:endcol'})
1528: );
1529: # The undef is for the format
1530: $excel_sheet->repeat_formula($rows_output,$cols_output++,
1531: $formula_data{$symb}->{'Excel:sum'},undef,
1532: %replaceCells, %replaceCells);
1533: } elsif ($chosen_output->{'sequence_sum'}) {
1534: if ($score eq ' ') {
1535: $cols_output++;
1536: } else {
1537: $excel_sheet->write($rows_output,$cols_output++,$score);
1538: }
1539: }
1540: if ($chosen_output->{'sequence_max'}) {
1541: $excel_sheet->write($rows_output,$cols_output++,$seq_max);
1542: }
1543: }
1544: #
1545: if ($chosen_output->{'grand_total'}) {
1546: $excel_sheet->repeat_formula($rows_output,$cols_output++,
1547: $total_formula,undef,
1548: %total_cell_translation);
1549: }
1550: if ($chosen_output->{'grand_maximum'}) {
1551: $excel_sheet->repeat_formula($rows_output,$cols_output++,
1552: $maximum_formula,undef,
1553: %maximum_cell_translation);
1554: }
1555: #
1556: # Bookkeeping
1557: $rows_output++;
1558: $cols_output=0;
1559: #
1560: # Update the progress window
1561: &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,'last student');
1562: return;
1563: }
1564:
1565: sub excel_finish {
1566: my ($r) = @_;
1567: if ($request_aborted || ! defined($navmap) || ! defined($excel_sheet)) {
1568: &excel_cleanup();
1569: return;
1570: }
1571: #
1572: # Write the excel file
1573: $excel_workbook->close();
1574: #
1575: # Close the progress window
1576: &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
1577: #
1578: # Tell the user where to get their excel file
1579: $r->print('<br />'.
1580: '<a href="'.$filename.'">Your Excel spreadsheet.</a>'."\n");
1581: $r->rflush();
1582: &excel_cleanup();
1583: return;
1584: }
1585:
1586: }
1587: #######################################################
1588: #######################################################
1589:
1590: =pod
1591:
1592: =head2 CSV output routines
1593:
1594: =item &csv_initialize($r)
1595:
1596: =item &csv_outputstudent($r,$student)
1597:
1598: =item &csv_finish($r)
1599:
1600: =cut
1601:
1602: #######################################################
1603: #######################################################
1604: {
1605:
1606: my $outputfile;
1607: my $filename;
1608: my $request_aborted;
1609: my %prog_state; # progress window state
1610: my $navmap;
1611: my @sequences;
1612:
1613: sub csv_cleanup {
1614: undef($outputfile);
1615: undef($filename);
1616: undef($request_aborted);
1617: undef(%prog_state);
1618: #
1619: undef($navmap);
1620: undef(@sequences);
1621: }
1622:
1623: sub csv_initialize{
1624: my ($r) = @_;
1625:
1626: &csv_cleanup();
1627: ($navmap,@sequences) =
1628: &Apache::lonstatistics::selected_sequences_with_assessments();
1629: if (! ref($navmap)) {
1630: # Unable to get data, so bail out
1631: $r->print("<h3>".
1632: &mt('Unable to retrieve course information.').
1633: '</h3>');
1634: }
1635: #
1636: # Deal with unimplemented requests
1637: $request_aborted = undef;
1638: if ($chosen_output->{'base'} =~ /final table/) {
1639: $r->print(<<END);
1640: <h2>Unable to Complete Request</h2>
1641: <p>
1642: The <b>Summary Table (Scores)</b> option is not available for non-HTML output.
1643: </p>
1644: END
1645: $request_aborted = 1;
1646: }
1647: return if ($request_aborted);
1648: #
1649: # Initialize progress window
1650: my $studentcount = scalar(@Apache::lonstatistics::Students);
1651: %prog_state=&Apache::lonhtmlcommon::Create_PrgWin
1652: ($r,'CSV File Compilation Status',
1653: 'CSV File Compilation Progress', $studentcount,
1654: 'inline',undef,'Statistics','stats_status');
1655: #
1656: # Open a file
1657: ($outputfile,$filename) = &Apache::loncommon::create_text_file($r,'csv');
1658: if (! defined($outputfile)) { return ''; }
1659: #
1660: # Datestamp
1661: my $description = $env{'course.'.$env{'request.course.id'}.'.description'};
1662: print $outputfile '"'.&Apache::loncommon::csv_translate($description).'",'.
1663: '"'.&Apache::loncommon::csv_translate(scalar(localtime(time))).'"'.
1664: "\n";
1665: print $outputfile '"'.
1666: &Apache::loncommon::csv_translate
1667: (&Apache::lonstatistics::section_and_enrollment_description()).
1668: '"'."\n";
1669: foreach my $item ('shortdesc','non_html_notes') {
1670: next if (! exists($chosen_output->{$item}));
1671: print $outputfile
1672: '"'.&Apache::loncommon::csv_translate($chosen_output->{$item}).'"'.
1673: "\n";
1674: }
1675: #
1676: # Print out the headings
1677: my $sequence_row = '';
1678: my $resource_row = undef;
1679: foreach my $field (&get_student_fields_to_show()) {
1680: $sequence_row .='"",';
1681: $resource_row .= '"'.&Apache::loncommon::csv_translate($field).'",';
1682: }
1683: foreach my $seq (@sequences) {
1684: $sequence_row .= '"'.
1685: &Apache::loncommon::csv_translate($seq->compTitle).'",';
1686: my $count = 0;
1687: if ($chosen_output->{'every_problem'}) {
1688: foreach my $res (&get_resources($navmap,$seq)) {
1689: if (scalar(@{$res->parts}) < 1) {
1690: next;
1691: }
1692: foreach my $part (@{$res->parts}) {
1693: $resource_row .= '"'.
1694: &Apache::loncommon::csv_translate
1695: ($res->compTitle.', Part '.$res->part_display($part)).'",';
1696: $count++;
1697: }
1698: }
1699: }
1700: $sequence_row.='"",'x$count;
1701: if ($chosen_output->{'sequence_sum'}) {
1702: if($chosen_output->{'correct'}) {
1703: $resource_row .= '"sum",';
1704: } else {
1705: $resource_row .= '"score",';
1706: }
1707: }
1708: if ($chosen_output->{'sequence_max'}) {
1709: $sequence_row.= '"",';
1710: $resource_row .= '"maximum possible",';
1711: }
1712: }
1713: if ($chosen_output->{'grand_total'}) {
1714: $sequence_row.= '"",';
1715: $resource_row.= '"Total",';
1716: }
1717: if ($chosen_output->{'grand_maximum'}) {
1718: $sequence_row.= '"",';
1719: $resource_row.= '"Maximum",';
1720: }
1721: chomp($sequence_row);
1722: chomp($resource_row);
1723: print $outputfile $sequence_row."\n";
1724: print $outputfile $resource_row."\n";
1725: return;
1726: }
1727:
1728: sub csv_outputstudent {
1729: my ($r,$student) = @_;
1730: if ($request_aborted || ! defined($navmap) || ! defined($outputfile)) {
1731: return;
1732: }
1733: my $Str = '';
1734: #
1735: # Output student fields
1736: my @to_show = &get_student_fields_to_show();
1737: foreach my $field (@to_show) {
1738: my $value = $student->{$field};
1739: if ($field eq 'comments') {
1740: $value = &Apache::lonmsgdisplay::retrieve_instructor_comments
1741: ($student->{'username'},$student->{'domain'});
1742: }
1743: $Str .= '"'.&Apache::loncommon::csv_translate($value).'",';
1744: }
1745: #
1746: # Get student assessment data
1747: my %StudentsData;
1748: my @tmp = &Apache::loncoursedata::get_current_state($student->{'username'},
1749: $student->{'domain'},
1750: undef,
1751: $env{'request.course.id'});
1752: if ((scalar @tmp > 0) && ($tmp[0] !~ /^error:/)) {
1753: %StudentsData = @tmp;
1754: }
1755: #
1756: # Output performance data
1757: my $total = 0;
1758: my $maximum = 0;
1759: foreach my $seq (@sequences) {
1760: my ($performance,$performance_length,$score,$seq_max,$rawdata);
1761: if ($chosen_output->{'tries'}){
1762: ($performance,$performance_length,$score,$seq_max,$rawdata) =
1763: &student_tries_on_sequence($student,\%StudentsData,
1764: $navmap,$seq,'no');
1765: } else {
1766: ($performance,$performance_length,$score,$seq_max,$rawdata) =
1767: &student_performance_on_sequence($student,\%StudentsData,
1768: $navmap,$seq,'no',
1769: $chosen_output->{ignore_weight});
1770: }
1771: if ($chosen_output->{'every_problem'}) {
1772: if ($chosen_output->{'correct'}) {
1773: $score = 0;
1774: # Deal with number of parts correct data
1775: $Str .= '"'.join('","',( map { if ($_>0) {
1776: $score += 1;
1777: 1;
1778: } else {
1779: 0;
1780: }
1781: } @$rawdata)).'",';
1782: } else {
1783: $Str .= '"'.join('","',(@$rawdata)).'",';
1784: }
1785: }
1786: if ($chosen_output->{'sequence_sum'}) {
1787: $Str .= '"'.$score.'",';
1788: }
1789: if ($chosen_output->{'sequence_max'}) {
1790: $Str .= '"'.$seq_max.'",';
1791: }
1792: $total+=$score;
1793: $maximum += $seq_max;
1794: }
1795: if ($chosen_output->{'grand_total'}) {
1796: $Str .= '"'.$total.'",';
1797: }
1798: if ($chosen_output->{'grand_maximum'}) {
1799: $Str .= '"'.$maximum.'",';
1800: }
1801: chop($Str);
1802: $Str .= "\n";
1803: print $outputfile $Str;
1804: #
1805: # Update the progress window
1806: &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,'last student');
1807: return;
1808: }
1809:
1810: sub csv_finish {
1811: my ($r) = @_;
1812: if ($request_aborted || ! defined($navmap) || ! defined($outputfile)) {
1813: &csv_cleanup();
1814: return;
1815: }
1816: close($outputfile);
1817: #
1818: # Close the progress window
1819: &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
1820: #
1821: # Tell the user where to get their csv file
1822: $r->print('<br />'.
1823: '<a href="'.$filename.'">'.&mt('Your csv file.').'</a>'."\n");
1824: $r->rflush();
1825: &csv_cleanup();
1826: return;
1827:
1828: }
1829:
1830: }
1831:
1832: # This function will return an HTML string including a star, with
1833: # a mouseover popup showing the "real" value. An optional second
1834: # argument lets you show something other than a star.
1835: sub show_star {
1836: my $popup = shift;
1837: my $symbol = shift || '*';
1838: # Escape the popup for JS.
1839: $popup =~ s/([^-a-zA-Z0-9:;,._ ()|!\/?=&*])/'\\' . sprintf("%lo", ord($1))/ge;
1840:
1841: return "<span class=\"LC_chrt_popup_exists\" onmouseover='popup_score(this, \"$popup\");return false;' onmouseout='popdown_score();return false;'>$symbol</span>";
1842: }
1843:
1844: #######################################################
1845: #######################################################
1846:
1847: =pod
1848:
1849: =item &StudentTriesOnSequence()
1850:
1851: Inputs:
1852:
1853: =over 4
1854:
1855: =item $student
1856:
1857: =item $studentdata Hash ref to all student data
1858:
1859: =item $seq Hash ref, the sequence we are working on
1860:
1861: =item $links if defined we will output links to each resource.
1862:
1863: =back
1864:
1865: =cut
1866:
1867: #######################################################
1868: #######################################################
1869: sub student_tries_on_sequence {
1870: my ($student,$studentdata,$navmap,$seq,$links) = @_;
1871: $links = 'no' if (! defined($links));
1872: my $Str = '';
1873: my ($sum,$max) = (0,0);
1874: my $performance_length = 0;
1875: my @TriesData = ();
1876: my $tries;
1877: my $hasdata = 0; # flag - true if the student has any data on the sequence
1878: foreach my $resource (&get_resources($navmap,$seq)) {
1879: my $resource_data = $studentdata->{$resource->symb};
1880: my $value = '';
1881: foreach my $partnum (@{$resource->parts()}) {
1882: $tries = undef;
1883: $max++;
1884: $performance_length++;
1885: my $symbol = ' '; # default to space
1886: #
1887: my $awarded = 0;
1888: if (exists($resource_data->{'resource.'.$partnum.'.awarded'})) {
1889: $awarded = $resource_data->{'resource.'.$partnum.'.awarded'};
1890: $awarded = 0 if (! $awarded);
1891: }
1892: #
1893: my $status = '';
1894: if (exists($resource_data->{'resource.'.$partnum.'.solved'})) {
1895: $status = $resource_data->{'resource.'.$partnum.'.solved'};
1896: }
1897: #
1898: my $tries = 0;
1899: if(exists($resource_data->{'resource.'.$partnum.'.tries'})) {
1900: $tries = $resource_data->{'resource.'.$partnum.'.tries'};
1901: $hasdata =1;
1902: }
1903: #
1904: if ($awarded > 0) {
1905: # The student has gotten the problem correct to some degree
1906: if ($status eq 'excused') {
1907: $symbol = 'x';
1908: $max--;
1909: } elsif ($status eq 'correct_by_override' && !$resource->is_task()) {
1910: $symbol = '+';
1911: $sum++;
1912: } elsif ($tries > 0) {
1913: if ($tries > 9) {
1914: $symbol = show_star($tries);
1915: } else {
1916: $symbol = $tries;
1917: }
1918: $sum++;
1919: } else {
1920: $symbol = '+';
1921: $sum++;
1922: }
1923: } else {
1924: # The student has the problem incorrect or it is ungraded
1925: if ($status eq 'excused') {
1926: $symbol = 'x';
1927: $max--;
1928: } elsif ($status eq 'incorrect_by_override') {
1929: $symbol = '-';
1930: } elsif ($status eq 'ungraded_attempted') {
1931: $symbol = 'u';
1932: } elsif ($status eq 'incorrect_attempted' ||
1933: $tries > 0) {
1934: $symbol = '.';
1935: } else {
1936: # Problem is wrong and has not been attempted.
1937: $symbol=' ';
1938: }
1939: }
1940: #
1941: if (! defined($tries)) {
1942: $tries = 0;
1943: }
1944: if ($status =~ /^(incorrect|ungraded)/) {
1945: # Bug 3390: show '-' for tries on incorrect problems
1946: # (csv & excel only)
1947: push(@TriesData,-$tries);
1948: } else {
1949: push (@TriesData,$tries);
1950: }
1951: #
1952: if ( ($links eq 'yes' && $symbol ne ' ') ||
1953: ($links eq 'all')) {
1954: if (length($symbol) > 1) {
1955: &Apache::lonnet::logthis('length of symbol "'.$symbol.'" > 1');
1956: }
1957: my $link = '/adm/grades'.
1958: '?symb='.&escape($resource->symb).
1959: '&student='.$student->{'username'}.
1960: '&userdom='.$student->{'domain'}.
1961: '&command=submission';
1962: $symbol = &link($symbol, $link);
1963: }
1964: $value .= $symbol;
1965: }
1966: $Str .= $value;
1967: }
1968: if ($seq->randompick()) {
1969: $max = $seq->randompick();
1970: }
1971: if (! $hasdata && $sum == 0) {
1972: $sum = ' ';
1973: }
1974: return ($Str,$performance_length,$sum,$max,\@TriesData);
1975: }
1976:
1977: =pod
1978:
1979: =item &link
1980:
1981: Inputs:
1982:
1983: =over 4
1984:
1985: =item $text
1986:
1987: =item $target
1988:
1989: =back
1990:
1991: Takes the text and creates a link to the $text that honors
1992: the value of 'new window' if clicked on, but uses a real
1993: 'href' so middle and right clicks still work.
1994:
1995: $target and $text are assumed to be already correctly escaped; i.e., it
1996: can be dumped out directly into the output stream as-is.
1997:
1998: =cut
1999:
2000: sub link {
2001: my ($text,$target) = @_;
2002: return
2003: "<a href='$target' onclick=\"t=this.href;if(new_window)"
2004: ."{window.open(t)}else{return void(window."
2005: ."location=t)};return false;\">$text</a>";
2006: }
2007:
2008: #######################################################
2009: #######################################################
2010:
2011: =pod
2012:
2013: =item &student_performance_on_sequence
2014:
2015: Inputs:
2016:
2017: =over 4
2018:
2019: =item $student
2020:
2021: =item $studentdata Hash ref to all student data
2022:
2023: =item $seq Hash ref, the sequence we are working on
2024:
2025: =item $links if defined we will output links to each resource.
2026:
2027: =back
2028:
2029: =cut
2030:
2031: #######################################################
2032: #######################################################
2033: sub student_performance_on_sequence {
2034: my ($student,$studentdata,$navmap,$seq,$links,$awarded_only) = @_;
2035: $links = 'no' if (! defined($links));
2036: my $Str = ''; # final result string
2037: my ($score,$max) = (0,0);
2038: my $performance_length = 0;
2039: my $symbol;
2040: my @ScoreData = ();
2041: my $partscore;
2042: my $hasdata = 0; # flag, 0 if there were no submissions on the sequence
2043: foreach my $resource (&get_resources($navmap,$seq)) {
2044: my $symb = $resource->symb;
2045: my $resource_data = $studentdata->{$symb};
2046: foreach my $part (@{$resource->parts()}) {
2047: $partscore = undef;
2048: my $weight;
2049: if (!$awarded_only){
2050: $weight = &Apache::lonnet::EXT('resource.'.$part.'.weight',
2051: $symb,
2052: $student->{'domain'},
2053: $student->{'username'},
2054: $student->{'section'});
2055: }
2056: if (!defined($weight) || ($weight eq '')) {
2057: $weight=1;
2058: }
2059: #
2060: $max += $weight; # see the 'excused' branch below...
2061: $performance_length++; # one character per part
2062: $symbol = ' '; # default to space
2063: #
2064: my $awarded;
2065: if (exists($resource_data->{'resource.'.$part.'.awarded'})) {
2066: $awarded = $resource_data->{'resource.'.$part.'.awarded'};
2067: $awarded = 0 if (! $awarded);
2068: $hasdata = 1;
2069: }
2070: #
2071: $partscore = &Apache::grades::compute_points($weight,$awarded);
2072: if (! defined($awarded)) {
2073: $partscore = undef;
2074: }
2075: $score += $partscore;
2076: $symbol = $partscore;
2077: if (abs($symbol - sprintf("%.0f",$symbol)) < 0.001) {
2078: $symbol = sprintf("%.0f",$symbol);
2079: }
2080: if (length($symbol) > 1) {
2081: $symbol = show_star($symbol);
2082: }
2083: if (exists($resource_data->{'resource.'.$part.'.solved'}) &&
2084: $resource_data->{'resource.'.$part.'.solved'} ne '') {
2085: my $status = $resource_data->{'resource.'.$part.'.solved'};
2086: if ($status eq 'excused') {
2087: $symbol = 'x';
2088: $max -= $weight; # Do not count 'excused' problems.
2089: } elsif ($status eq 'ungraded_attempted') {
2090: $symbol = 'u';
2091: }
2092: $hasdata = 1;
2093: } elsif ($resource_data->{'resource.'.$part.'.award'} eq 'DRAFT') {
2094: $symbol = 'd';
2095: $hasdata = 1;
2096: } elsif (!exists($resource_data->{'resource.'.$part.'.awarded'})){
2097: # Unsolved. Did they try?
2098: if (exists($resource_data->{'resource.'.$part.'.tries'})){
2099: $symbol = '.';
2100: $hasdata = 1;
2101: } else {
2102: $symbol = ' ';
2103: }
2104: }
2105: #
2106: if (! defined($partscore)) {
2107: $partscore = $symbol;
2108: }
2109: push (@ScoreData,$partscore);
2110: #
2111: if ( ($links eq 'yes' && $symbol ne ' ') || ($links eq 'all')) {
2112: my $link = '/adm/grades' .
2113: '?symb='.&escape($symb).
2114: '&student='.$student->{'username'}.
2115: '&userdom='.$student->{'domain'}.
2116: '&command=submission';
2117: $symbol = &link($symbol, $link);
2118: }
2119: $Str .= $symbol;
2120: }
2121: }
2122: if (! $hasdata && $score == 0) {
2123: $score = ' ';
2124: }
2125: return ($Str,$performance_length,$score,$max,\@ScoreData);
2126: }
2127:
2128: #######################################################
2129: #######################################################
2130:
2131: =pod
2132:
2133: =item &CreateLegend()
2134:
2135: This function returns a formatted string containing the legend for the
2136: chart. The legend describes the symbols used to represent grades for
2137: problems.
2138:
2139: =cut
2140:
2141: #######################################################
2142: #######################################################
2143: sub CreateLegend {
2144: my $Str = "<p><pre>".
2145: " digit score or number of tries to get correct ".
2146: " * correct by student in more than 9 tries\n".
2147: " + correct by hand grading or override\n".
2148: " - incorrect by override\n".
2149: " . incorrect attempted\n".
2150: " u ungraded attempted\n".
2151: " d draft answer saved but not submitted\n".
2152: " not attempted (blank field)\n".
2153: " x excused".
2154: "</pre><p>";
2155: return $Str;
2156: }
2157:
2158: #######################################################
2159: #######################################################
2160:
2161: =pod
2162:
2163: =back
2164:
2165: =cut
2166:
2167: #######################################################
2168: #######################################################
2169:
2170: 1;
2171:
2172: __END__
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