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[LON-CAPA] /
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lonstudentassessment.pm
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- when errors occur getting data for chrt display it
1: # The LearningOnline Network with CAPA
2: #
3: # $Id: lonstudentassessment.pm,v 1.144 2006/12/21 02:53:42 albertel 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: } else {
849: my $error = $1;
850: if (scalar(@tmp) < 1) {
851: $Str .= '<font color="blue">No Course Data</font>'."\n";
852: } else {
853: $Str .= '<span class="LC_error">Error getting student data ('.
854: $error.') </span>'."\n";
855: }
856: $nodata_count++;
857: $r->print($Str);
858: $r->rflush();
859: return;
860: }
861: #
862: # By sequence build up the data
863: my $studentstats;
864: my $PerformanceStr = '';
865: foreach my $seq (@sequences) {
866: my $symb = $seq->symb;
867: my ($performance,$performance_length,$score,$seq_max,$rawdata);
868: if ($chosen_output->{'tries'}) {
869: ($performance,$performance_length,$score,$seq_max,$rawdata) =
870: &student_tries_on_sequence($student,\%StudentsData,
871: $navmap,$seq,$show_links);
872: } else {
873: ($performance,$performance_length,$score,$seq_max,$rawdata) =
874: &student_performance_on_sequence($student,\%StudentsData,
875: $navmap,$seq,$show_links,
876: $chosen_output->{ignore_weight});
877: }
878: my $ratio='';
879: if ($chosen_output->{'every_problem'} &&
880: $chosen_output->{'sequence_sum'}) {
881: $ratio .= ' ';
882: }
883: if ($chosen_output->{'sequence_sum'} && $score ne ' ') {
884: my $score .= sprintf("%3.0f",$score);
885: $ratio .= (' 'x(3-length($score))).$score;
886: } elsif($chosen_output->{'sequence_sum'}) {
887: $ratio .= ' 'x3;
888: }
889: if ($chosen_output->{'sequence_max'}) {
890: if ($chosen_output->{'sequence_sum'}) {
891: $ratio .= '/';
892: }
893: $ratio .= sprintf("%3.0f",$seq_max);
894: }
895: #
896: if (! $chosen_output->{'every_problem'}) {
897: $performance = '';
898: $performance_length=0;
899: }
900: $performance .= ' 'x($width{$symb}->{'width_total'} -
901: $performance_length -
902: $width{$symb}->{'width_sum'}).
903: $ratio;
904: #
905: $Str .= $performance.$padding;
906: #
907: $studentstats->{$symb}->{'score'}= $score;
908: $studentstats->{$symb}->{'max'} = $seq_max;
909: }
910: #
911: # Total it up and store the statistics info.
912: my ($score,$max);
913: while (my ($symb,$seq_stats) = each (%{$studentstats})) {
914: $Statistics->{$symb}->{'score'} += $seq_stats->{'score'};
915: if ($Statistics->{$symb}->{'max'} < $seq_stats->{'max'}) {
916: $Statistics->{$symb}->{'max'} = $seq_stats->{'max'};
917: }
918: if ($seq_stats->{'score'} ne ' ') {
919: $score += $seq_stats->{'score'};
920: $Statistics->{$symb}->{'num_students'}++;
921: }
922: $max += $seq_stats->{'max'};
923: }
924: if (! defined($score)) {
925: $score = ' ' x $total_sum_width;
926: } else {
927: $score = sprintf("%.0f",$score);
928: $score = (' 'x(3-length($score))).$score;
929: }
930: $Str .= ' '.' 'x($total_sum_width-length($score)).$score.' / '.$max;
931: $Str .= " \n";
932: #
933: $r->print($Str);
934: #
935: $r->rflush();
936: &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,'last student');
937: return;
938: }
939:
940: sub html_finish {
941: my ($r) = @_;
942: return if (! defined($navmap));
943: #
944: # Check for suppressed output and close the progress window if so
945: $r->print("</pre>\n");
946: if ($chosen_output->{'summary_table'}) {
947: if ($single_student_mode) {
948: $r->print(&SingleStudentTotal());
949: } else {
950: $r->print(&StudentAverageTotal());
951: }
952: }
953: $r->rflush();
954: &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
955: &html_cleanup();
956: return;
957: }
958:
959: sub StudentAverageTotal {
960: my $Str = '<h3>'.&mt('Summary Tables').'</h3>'.$/;
961: $Str .= '<table border=2 cellspacing="1">'."\n";
962: $Str .= '<tr>'.
963: '<th>'.&mt('Title').'</th>'.
964: '<th>'.&mt('Average').'</th>'.
965: '<th>'.&mt('Maximum').'</th>'.
966: '</tr>'.$/;
967: foreach my $seq (@sequences) {
968: my $symb = $seq->symb;
969: my $ave;
970: my $num_students = $Statistics->{$symb}->{'num_students'};
971: if ($num_students > 0) {
972: $ave = int(100*
973: ($Statistics->{$symb}->{'score'}/$num_students)
974: )/100;
975: } else {
976: $ave = 0;
977: }
978: my $max = $Statistics->{$symb}->{'max'};
979: $ave = sprintf("%.2f",$ave);
980: $Str .= '<tr><td>'.$seq->compTitle.'</td>'.
981: '<td align="right">'.$ave.' </td>'.
982: '<td align="right">'.$max.' '.'</td></tr>'."\n";
983: }
984: $Str .= "</table>\n";
985: return $Str;
986: }
987:
988: sub SingleStudentTotal {
989: return if (! defined($navmap));
990: my $student = &Apache::lonstatistics::current_student();
991: my $Str = '<h3>'.&mt('Summary table for [_1] ([_2]@[_3])',
992: $student->{'fullname'},
993: $student->{'username'},$student->{'domain'}).'</h3>';
994: $Str .= $/;
995: $Str .= '<table border=2 cellspacing="1">'."\n";
996: $Str .=
997: '<tr>'.
998: '<th>'.&mt('Sequence or Folder').'</th>';
999: if ($chosen_output->{'base'} eq 'tries') {
1000: $Str .= '<th>'.&mt('Parts Correct').'</th>';
1001: } else {
1002: $Str .= '<th>'.&mt('Score').'</th>';
1003: }
1004: $Str .= '<th>'.&mt('Maximum').'</th>'."</tr>\n";
1005: my $total = 0;
1006: my $total_max = 0;
1007: foreach my $seq (@sequences) {
1008: my $value = $Statistics->{$seq->symb}->{'score'};
1009: my $max = $Statistics->{$seq->symb}->{'max'};
1010: $Str .= '<tr><td>'.&HTML::Entities::encode($seq->compTitle).'</td>'.
1011: '<td align="right">'.$value.'</td>'.
1012: '<td align="right">'.$max.'</td></tr>'."\n";
1013: $total += $value;
1014: $total_max +=$max;
1015: }
1016: $Str .= '<tr><td><b>'.&mt('Total').'</b></td>'.
1017: '<td align="right">'.$total.'</td>'.
1018: '<td align="right">'.$total_max."</td></tr>\n";
1019: $Str .= "</table>\n";
1020: return $Str;
1021: }
1022:
1023: }
1024:
1025: #######################################################
1026: #######################################################
1027:
1028: =pod
1029:
1030: =head2 EXCEL subroutines
1031:
1032: =item &excel_initialize($r)
1033:
1034: =item &excel_outputstudent($r,$student)
1035:
1036: =item &excel_finish($r)
1037:
1038: =cut
1039:
1040: #######################################################
1041: #######################################################
1042: {
1043:
1044: my $excel_sheet;
1045: my $excel_workbook;
1046: my $format;
1047:
1048: my $filename;
1049: my $rows_output;
1050: my $cols_output;
1051:
1052: my %prog_state; # progress window state
1053: my $request_aborted;
1054:
1055: my $total_formula;
1056: my $maximum_formula;
1057: my %formula_data;
1058:
1059: my $navmap;
1060: my @sequences;
1061:
1062: sub excel_cleanup {
1063: #
1064: undef ($excel_sheet);
1065: undef ($excel_workbook);
1066: undef ($filename);
1067: undef ($rows_output);
1068: undef ($cols_output);
1069: undef (%prog_state);
1070: undef ($request_aborted);
1071: undef ($total_formula);
1072: undef ($maximum_formula);
1073: #
1074: undef(%formula_data);
1075: #
1076: undef($navmap);
1077: undef(@sequences);
1078: }
1079:
1080: sub excel_initialize {
1081: my ($r) = @_;
1082:
1083: &excel_cleanup();
1084: ($navmap,@sequences) =
1085: &Apache::lonstatistics::selected_sequences_with_assessments();
1086: if (! ref($navmap)) {
1087: # Unable to get data, so bail out
1088: $r->print("<h3>".
1089: &mt('Unable to retrieve course information.').
1090: '</h3>');
1091: }
1092: #
1093: my $total_columns = scalar(&get_student_fields_to_show());
1094: my $num_students = scalar(@Apache::lonstatistics::Students);
1095: #
1096: foreach my $seq (@sequences) {
1097: if ($chosen_output->{'every_problem'}) {
1098: $total_columns+=&count_parts($navmap,$seq);
1099: }
1100: # Add 2 because we need a 'sequence_sum' and 'total' column for each
1101: $total_columns += 2;
1102: }
1103: my $too_many_cols_error_message =
1104: '<h2>'.&mt('Unable to Complete Request').'</h2>'.$/.
1105: '<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>'.$/.
1106: '<p>'.&mt('You may consider reducing the number of <b>Sequences or Folders</b> you have selected.').'</p>'.$/.
1107: '<p>'.&mt('LON-CAPA can produce <b>CSV</b> files of this data or Excel files of the <b>Scores Summary</b> data.').'</p>'.$/;
1108: if ($chosen_output->{'base'} eq 'tries' && $total_columns > 255) {
1109: $r->print($too_many_cols_error_message);
1110: $request_aborted = 1;
1111: }
1112: if ($chosen_output->{'base'} eq 'scores' && $total_columns > 255) {
1113: $r->print($too_many_cols_error_message);
1114: $request_aborted = 1;
1115: }
1116: return if ($request_aborted);
1117: #
1118: #
1119: $excel_workbook = undef;
1120: $excel_sheet = undef;
1121: #
1122: $rows_output = 0;
1123: $cols_output = 0;
1124: #
1125: # Determine rows
1126: my $header_row = $rows_output++;
1127: my $description_row = $rows_output++;
1128: my $notes_row = $rows_output++;
1129: $rows_output++; # blank row
1130: my $summary_header_row;
1131: if ($chosen_output->{'summary_table'}) {
1132: $summary_header_row = $rows_output++;
1133: $rows_output+= scalar(@sequences);
1134: $rows_output++;
1135: }
1136: my $sequence_name_row = $rows_output++;
1137: my $resource_name_row = $rows_output++;
1138: my $maximum_data_row = $rows_output++;
1139: if (! $chosen_output->{'maximum_row'}) {
1140: $rows_output--;
1141: }
1142: my $first_data_row = $rows_output++;
1143: #
1144: # Create sheet
1145: ($excel_workbook,$filename,$format)=
1146: &Apache::loncommon::create_workbook($r);
1147: return if (! defined($excel_workbook));
1148: #
1149: # Add a worksheet
1150: my $sheetname = $env{'course.'.$env{'request.course.id'}.'.description'};
1151: $sheetname = &Apache::loncommon::clean_excel_name($sheetname);
1152: $excel_sheet = $excel_workbook->addworksheet($sheetname);
1153: #
1154: # Put the course description in the header
1155: $excel_sheet->write($header_row,$cols_output++,
1156: $env{'course.'.$env{'request.course.id'}.'.description'},
1157: $format->{'h1'});
1158: $cols_output += 3;
1159: #
1160: # Put a description of the sections listed
1161: my $sectionstring = '';
1162: my @Sections = &Apache::lonstatistics::get_selected_sections();
1163: $excel_sheet->write($header_row,$cols_output++,
1164: &Apache::lonstatistics::section_and_enrollment_description('plaintext'),
1165: $format->{'h3'});
1166: #
1167: # Put the date in there too
1168: $excel_sheet->write($header_row,$cols_output++,
1169: 'Compiled on '.localtime(time),$format->{'h3'});
1170: #
1171: $cols_output = 0;
1172: $excel_sheet->write($description_row,$cols_output++,
1173: $chosen_output->{'shortdesc'},
1174: $format->{'b'});
1175: #
1176: $cols_output = 0;
1177: $excel_sheet->write($notes_row,$cols_output++,
1178: $chosen_output->{'non_html_notes'},
1179: $format->{'i'});
1180:
1181: ##############################################
1182: # Output headings for the raw data
1183: ##############################################
1184: #
1185: # Add the student headers
1186: $cols_output = 0;
1187: foreach my $field (&get_student_fields_to_show()) {
1188: $excel_sheet->write($resource_name_row,$cols_output++,$field,
1189: $format->{'bold'});
1190: }
1191: #
1192: # Add the remaining column headers
1193: my $total_formula_string = '=0';
1194: my $maximum_formula_string = '=0';
1195: foreach my $seq (@sequences) {
1196: my $symb = $seq->symb;
1197: $excel_sheet->write($sequence_name_row,,
1198: $cols_output,$seq->compTitle,$format->{'bold'});
1199: # Determine starting cell
1200: $formula_data{$symb}->{'Excel:startcell'}=
1201: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1202: ($first_data_row,$cols_output);
1203: $formula_data{$symb}->{'Excel:startcol'}=$cols_output;
1204: my $count = 0;
1205: if ($chosen_output->{'every_problem'}) {
1206: # Put the names of the problems and parts into the sheet
1207: foreach my $res (&get_resources($navmap,$seq)) {
1208: if (scalar(@{$res->parts}) > 1) {
1209: foreach my $part (@{$res->parts}) {
1210: $excel_sheet->write($resource_name_row,
1211: $cols_output++,
1212: $res->compTitle.' part '.$res->part_display($part),
1213: $format->{'bold'});
1214: $count++;
1215: }
1216: } else {
1217: $excel_sheet->write($resource_name_row,
1218: $cols_output++,
1219: $res->compTitle,$format->{'bold'});
1220: $count++;
1221: }
1222: }
1223: }
1224: # Determine ending cell
1225: if ($count <= 1) {
1226: $formula_data{$symb}->{'Excel:endcell'} = $formula_data{$symb}->{'Excel:startcell'};
1227: $formula_data{$symb}->{'Excel:endcol'} = $formula_data{$symb}->{'Excel:startcol'};
1228: } else {
1229: $formula_data{$symb}->{'Excel:endcell'} =
1230: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1231: ($first_data_row,$cols_output-1);
1232: $formula_data{$symb}->{'Excel:endcol'} = $cols_output-1;
1233: }
1234: # Create the formula for summing up this sequence
1235: if (! exists($formula_data{$symb}->{'Excel:endcell'}) ||
1236: ! defined($formula_data{$symb}->{'Excel:endcell'})) {
1237: $formula_data{$symb}->{'Excel:endcell'} = $formula_data{$symb}->{'Excel:startcell'};
1238: }
1239:
1240: my $start = $formula_data{$symb}->{'Excel:startcell'};
1241: my $end = $formula_data{$symb}->{'Excel:endcell'};
1242: $formula_data{$symb}->{'Excel:sum'}= $excel_sheet->store_formula
1243: ("=IF(COUNT($start\:$end),SUM($start\:$end),\"\")");
1244: # Determine cell the score is held in
1245: $formula_data{$symb}->{'Excel:scorecell'} =
1246: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1247: ($first_data_row,$cols_output);
1248: $formula_data{$symb}->{'Excel:scorecol'}=$cols_output;
1249: if ($chosen_output->{'base'} eq 'parts correct total') {
1250: $excel_sheet->write($resource_name_row,$cols_output++,
1251: 'parts correct',
1252: $format->{'bold'});
1253: } elsif ($chosen_output->{'sequence_sum'}) {
1254: if ($chosen_output->{'correct'}) {
1255: # Only reporting the number correct, so do not call it score
1256: $excel_sheet->write($resource_name_row,$cols_output++,
1257: 'sum',
1258: $format->{'bold'});
1259: } else {
1260: $excel_sheet->write($resource_name_row,$cols_output++,
1261: 'score',
1262: $format->{'bold'});
1263: }
1264: }
1265: #
1266: $total_formula_string.='+'.
1267: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1268: ($first_data_row,$cols_output-1);
1269: if ($chosen_output->{'sequence_max'}) {
1270: $excel_sheet->write($resource_name_row,$cols_output,
1271: 'maximum',
1272: $format->{'bold'});
1273: $formula_data{$symb}->{'Excel:maxcell'} =
1274: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1275: ($first_data_row,$cols_output);
1276: $formula_data{$symb}->{'Excel:maxcol'}=$cols_output;
1277: $maximum_formula_string.='+'.
1278: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1279: ($first_data_row,$cols_output);
1280: $cols_output++;
1281:
1282: }
1283: }
1284: if ($chosen_output->{'grand_total'}) {
1285: $excel_sheet->write($resource_name_row,$cols_output++,'Total',
1286: $format->{'bold'});
1287: }
1288: if ($chosen_output->{'grand_maximum'}) {
1289: $excel_sheet->write($resource_name_row,$cols_output++,'Max. Total',
1290: $format->{'bold'});
1291: }
1292: $total_formula = $excel_sheet->store_formula($total_formula_string);
1293: $maximum_formula = $excel_sheet->store_formula($maximum_formula_string);
1294: ##############################################
1295: # Output a row for MAX, if appropriate
1296: ##############################################
1297: if ($chosen_output->{'maximum_row'}) {
1298: $cols_output = 0;
1299: foreach my $field (&get_student_fields_to_show()) {
1300: if ($field eq 'username' || $field eq 'fullname' ||
1301: $field eq 'id') {
1302: $excel_sheet->write($maximum_data_row,$cols_output++,'Maximum',
1303: $format->{'bold'});
1304: } else {
1305: $excel_sheet->write($maximum_data_row,$cols_output++,'');
1306: }
1307: }
1308: #
1309: # Add the maximums for each sequence or assessment
1310: my %total_cell_translation;
1311: my %maximum_cell_translation;
1312: foreach my $seq (@sequences) {
1313: my $symb = $seq->symb;
1314: $cols_output=$formula_data{$symb}->{'Excel:startcol'};
1315: $total_cell_translation{$formula_data{$symb}->{'Excel:scorecell'}}=
1316: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1317: ($maximum_data_row,$formula_data{$symb}->{'Excel:scorecol'});
1318: $maximum_cell_translation{$formula_data{$symb}->{'Excel:maxcell'}}=
1319: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1320: ($maximum_data_row,$formula_data{$symb}->{'Excel:maxcol'});
1321: my $weight;
1322: my $max = 0;
1323: foreach my $resource (&get_resources($navmap,$seq)) {
1324: foreach my $part (@{$resource->parts}){
1325: $weight = 1;
1326: if ($chosen_output->{'scores'}) {
1327: $weight = &Apache::lonnet::EXT
1328: ('resource.'.$part.'.weight',$resource->symb,
1329: undef,undef,undef);
1330: if (!defined($weight) || ($weight eq '')) {
1331: $weight=1;
1332: }
1333: }
1334: if ($chosen_output->{'scores'} &&
1335: $chosen_output->{'every_problem'}) {
1336: $excel_sheet->write($maximum_data_row,$cols_output++,
1337: $weight);
1338: }
1339: $max += $weight;
1340: }
1341: }
1342: #
1343: if ($chosen_output->{'sequence_sum'} &&
1344: $chosen_output->{'every_problem'}) {
1345: my %replaceCells=
1346: ('^'.$formula_data{$symb}->{'Excel:startcell'}.':'.
1347: $formula_data{$symb}->{'Excel:endcell'}.'$' =>
1348: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell($maximum_data_row,$formula_data{$symb}->{'Excel:startcol'}).':'.
1349: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell($maximum_data_row,$formula_data{$symb}->{'Excel:endcol'}));
1350: $excel_sheet->repeat_formula($maximum_data_row,$cols_output++,
1351: $formula_data{$symb}->{'Excel:sum'},undef,
1352: %replaceCells, %replaceCells);
1353:
1354: } elsif ($chosen_output->{'sequence_sum'}) {
1355: $excel_sheet->write($maximum_data_row,$cols_output++,$max);
1356: }
1357: if ($chosen_output->{'sequence_max'}) {
1358: $excel_sheet->write($maximum_data_row,$cols_output++,$max);
1359: }
1360: #
1361: }
1362: if ($chosen_output->{'grand_total'}) {
1363: $excel_sheet->repeat_formula($maximum_data_row,$cols_output++,
1364: $total_formula,undef,
1365: %total_cell_translation);
1366: }
1367: if ($chosen_output->{'grand_maximum'}) {
1368: $excel_sheet->repeat_formula($maximum_data_row,$cols_output++,
1369: $maximum_formula,undef,
1370: %maximum_cell_translation);
1371: }
1372: } # End of MAXIMUM row output if ($chosen_output->{'maximum_row'}) {
1373: $rows_output = $first_data_row;
1374: ##############################################
1375: # Output summary table, which actually is above the sequence name row.
1376: ##############################################
1377: if ($chosen_output->{'summary_table'}) {
1378: $cols_output = 0;
1379: $excel_sheet->write($summary_header_row,$cols_output++,
1380: 'Summary Table',$format->{'bold'});
1381: if ($chosen_output->{'maximum_row'}) {
1382: $excel_sheet->write($summary_header_row,$cols_output++,
1383: 'Maximum',$format->{'bold'});
1384: }
1385: $excel_sheet->write($summary_header_row,$cols_output++,
1386: 'Average',$format->{'bold'});
1387: $excel_sheet->write($summary_header_row,$cols_output++,
1388: 'Median',$format->{'bold'});
1389: $excel_sheet->write($summary_header_row,$cols_output++,
1390: 'Std Dev',$format->{'bold'});
1391: my $row = $summary_header_row+1;
1392: foreach my $seq (@sequences) {
1393: my $symb = $seq->symb;
1394: $cols_output = 0;
1395: $excel_sheet->write($row,$cols_output++,
1396: $seq->compTitle,
1397: $format->{'bold'});
1398: if ($chosen_output->{'maximum_row'}) {
1399: $excel_sheet->write
1400: ($row,$cols_output++,
1401: '='.
1402: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1403: ($maximum_data_row,$formula_data{$symb}->{'Excel:scorecol'})
1404: );
1405: }
1406: my $range =
1407: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1408: ($first_data_row,$formula_data{$symb}->{'Excel:scorecol'}).
1409: ':'.
1410: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1411: ($first_data_row+$num_students-1,$formula_data{$symb}->{'Excel:scorecol'});
1412: $excel_sheet->write($row,$cols_output++,
1413: '=AVERAGE('.$range.')');
1414: $excel_sheet->write($row,$cols_output++,
1415: '=MEDIAN('.$range.')');
1416: $excel_sheet->write($row,$cols_output++,
1417: '=STDEV('.$range.')');
1418: $row++;
1419: }
1420: }
1421: ##############################################
1422: # Take care of non-excel initialization
1423: ##############################################
1424: #
1425: # Let the user know what we are doing
1426: my $studentcount = scalar(@Apache::lonstatistics::Students);
1427: if ($env{'form.SelectedStudent'}) {
1428: $studentcount = '1';
1429: }
1430: if ($studentcount > 1) {
1431: $r->print('<h1>'.&mt('Compiling Excel spreadsheet for [_1] students',
1432: $studentcount)."</h1>\n");
1433: } else {
1434: $r->print('<h1>'.
1435: &mt('Compiling Excel spreadsheet for 1 student').
1436: "</h1>\n");
1437: }
1438: $r->rflush();
1439: #
1440: # Initialize progress window
1441: %prog_state=&Apache::lonhtmlcommon::Create_PrgWin
1442: ($r,'Excel File Compilation Status',
1443: 'Excel File Compilation Progress', $studentcount,
1444: 'inline',undef,'Statistics','stats_status');
1445: #
1446: &Apache::lonhtmlcommon::Update_PrgWin($r,\%prog_state,
1447: 'Processing first student');
1448: return;
1449: }
1450:
1451: sub excel_outputstudent {
1452: my ($r,$student) = @_;
1453: if ($request_aborted || ! defined($navmap) || ! defined($excel_sheet)) {
1454: return;
1455: }
1456: $cols_output=0;
1457: #
1458: # Write out student data
1459: my @to_show = &get_student_fields_to_show();
1460: foreach my $field (@to_show) {
1461: my $value = $student->{$field};
1462: if ($field eq 'comments') {
1463: $value = &Apache::lonmsgdisplay::retrieve_instructor_comments
1464: ($student->{'username'},$student->{'domain'});
1465: }
1466: $excel_sheet->write($rows_output,$cols_output++,$value);
1467: }
1468: #
1469: # Get student assessment data
1470: my %StudentsData;
1471: my @tmp = &Apache::loncoursedata::get_current_state($student->{'username'},
1472: $student->{'domain'},
1473: undef,
1474: $env{'request.course.id'});
1475: if ((scalar @tmp > 0) && ($tmp[0] !~ /^error:/)) {
1476: %StudentsData = @tmp;
1477: }
1478: #
1479: # Write out sequence scores and totals data
1480: my %total_cell_translation;
1481: my %maximum_cell_translation;
1482: foreach my $seq (@sequences) {
1483: my $symb = $seq->symb;
1484: $cols_output = $formula_data{$symb}->{'Excel:startcol'};
1485: # Keep track of cells to translate in total cell
1486: $total_cell_translation{$formula_data{$symb}->{'Excel:scorecell'}} =
1487: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1488: ($rows_output,$formula_data{$symb}->{'Excel:scorecol'});
1489: # and maximum cell
1490: $maximum_cell_translation{$formula_data{$symb}->{'Excel:maxcell'}} =
1491: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1492: ($rows_output,$formula_data{$symb}->{'Excel:maxcol'});
1493: #
1494: my ($performance,$performance_length,$score,$seq_max,$rawdata);
1495: if ($chosen_output->{'tries'} || $chosen_output->{'correct'}){
1496: ($performance,$performance_length,$score,$seq_max,$rawdata) =
1497: &student_tries_on_sequence($student,\%StudentsData,
1498: $navmap,$seq,'no');
1499: } else {
1500: ($performance,$performance_length,$score,$seq_max,$rawdata) =
1501: &student_performance_on_sequence($student,\%StudentsData,
1502: $navmap,$seq,'no',
1503: $chosen_output->{ignore_weight});
1504: }
1505: if ($chosen_output->{'every_problem'}) {
1506: if ($chosen_output->{'correct'}) {
1507: # only indiciate if each item is correct or not
1508: foreach my $value (@$rawdata) {
1509: # positive means correct, 0 or negative means
1510: # incorrect
1511: $value = $value > 0 ? 1 : 0;
1512: $excel_sheet->write($rows_output,$cols_output++,$value);
1513: }
1514: } else {
1515: foreach my $value (@$rawdata) {
1516: if ($score eq ' ' || !defined($value)) {
1517: $cols_output++;
1518: } else {
1519: $excel_sheet->write($rows_output,$cols_output++,
1520: $value);
1521: }
1522: }
1523: }
1524: }
1525: if ($chosen_output->{'sequence_sum'} &&
1526: $chosen_output->{'every_problem'}) {
1527: # Write a formula for the sum of this sequence
1528: my %replaceCells=
1529: ('^'.$formula_data{$symb}->{'Excel:startcell'}.':'.$formula_data{$symb}->{'Excel:endcell'}.'$'
1530: =>
1531: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell($rows_output,$formula_data{$symb}->{'Excel:startcol'}).':'.
1532: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell($rows_output,$formula_data{$symb}->{'Excel:endcol'})
1533: );
1534: # The undef is for the format
1535: $excel_sheet->repeat_formula($rows_output,$cols_output++,
1536: $formula_data{$symb}->{'Excel:sum'},undef,
1537: %replaceCells, %replaceCells);
1538: } elsif ($chosen_output->{'sequence_sum'}) {
1539: if ($score eq ' ') {
1540: $cols_output++;
1541: } else {
1542: $excel_sheet->write($rows_output,$cols_output++,$score);
1543: }
1544: }
1545: if ($chosen_output->{'sequence_max'}) {
1546: $excel_sheet->write($rows_output,$cols_output++,$seq_max);
1547: }
1548: }
1549: #
1550: if ($chosen_output->{'grand_total'}) {
1551: $excel_sheet->repeat_formula($rows_output,$cols_output++,
1552: $total_formula,undef,
1553: %total_cell_translation);
1554: }
1555: if ($chosen_output->{'grand_maximum'}) {
1556: $excel_sheet->repeat_formula($rows_output,$cols_output++,
1557: $maximum_formula,undef,
1558: %maximum_cell_translation);
1559: }
1560: #
1561: # Bookkeeping
1562: $rows_output++;
1563: $cols_output=0;
1564: #
1565: # Update the progress window
1566: &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,'last student');
1567: return;
1568: }
1569:
1570: sub excel_finish {
1571: my ($r) = @_;
1572: if ($request_aborted || ! defined($navmap) || ! defined($excel_sheet)) {
1573: &excel_cleanup();
1574: return;
1575: }
1576: #
1577: # Write the excel file
1578: $excel_workbook->close();
1579: #
1580: # Close the progress window
1581: &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
1582: #
1583: # Tell the user where to get their excel file
1584: $r->print('<br />'.
1585: '<a href="'.$filename.'">Your Excel spreadsheet.</a>'."\n");
1586: $r->rflush();
1587: &excel_cleanup();
1588: return;
1589: }
1590:
1591: }
1592: #######################################################
1593: #######################################################
1594:
1595: =pod
1596:
1597: =head2 CSV output routines
1598:
1599: =item &csv_initialize($r)
1600:
1601: =item &csv_outputstudent($r,$student)
1602:
1603: =item &csv_finish($r)
1604:
1605: =cut
1606:
1607: #######################################################
1608: #######################################################
1609: {
1610:
1611: my $outputfile;
1612: my $filename;
1613: my $request_aborted;
1614: my %prog_state; # progress window state
1615: my $navmap;
1616: my @sequences;
1617:
1618: sub csv_cleanup {
1619: undef($outputfile);
1620: undef($filename);
1621: undef($request_aborted);
1622: undef(%prog_state);
1623: #
1624: undef($navmap);
1625: undef(@sequences);
1626: }
1627:
1628: sub csv_initialize{
1629: my ($r) = @_;
1630:
1631: &csv_cleanup();
1632: ($navmap,@sequences) =
1633: &Apache::lonstatistics::selected_sequences_with_assessments();
1634: if (! ref($navmap)) {
1635: # Unable to get data, so bail out
1636: $r->print("<h3>".
1637: &mt('Unable to retrieve course information.').
1638: '</h3>');
1639: }
1640: #
1641: # Deal with unimplemented requests
1642: $request_aborted = undef;
1643: if ($chosen_output->{'base'} =~ /final table/) {
1644: $r->print(<<END);
1645: <h2>Unable to Complete Request</h2>
1646: <p>
1647: The <b>Summary Table (Scores)</b> option is not available for non-HTML output.
1648: </p>
1649: END
1650: $request_aborted = 1;
1651: }
1652: return if ($request_aborted);
1653: #
1654: # Initialize progress window
1655: my $studentcount = scalar(@Apache::lonstatistics::Students);
1656: %prog_state=&Apache::lonhtmlcommon::Create_PrgWin
1657: ($r,'CSV File Compilation Status',
1658: 'CSV File Compilation Progress', $studentcount,
1659: 'inline',undef,'Statistics','stats_status');
1660: #
1661: # Open a file
1662: ($outputfile,$filename) = &Apache::loncommon::create_text_file($r,'csv');
1663: if (! defined($outputfile)) { return ''; }
1664: #
1665: # Datestamp
1666: my $description = $env{'course.'.$env{'request.course.id'}.'.description'};
1667: print $outputfile '"'.&Apache::loncommon::csv_translate($description).'",'.
1668: '"'.&Apache::loncommon::csv_translate(scalar(localtime(time))).'"'.
1669: "\n";
1670: print $outputfile '"'.
1671: &Apache::loncommon::csv_translate
1672: (&Apache::lonstatistics::section_and_enrollment_description()).
1673: '"'."\n";
1674: foreach my $item ('shortdesc','non_html_notes') {
1675: next if (! exists($chosen_output->{$item}));
1676: print $outputfile
1677: '"'.&Apache::loncommon::csv_translate($chosen_output->{$item}).'"'.
1678: "\n";
1679: }
1680: #
1681: # Print out the headings
1682: my $sequence_row = '';
1683: my $resource_row = undef;
1684: foreach my $field (&get_student_fields_to_show()) {
1685: $sequence_row .='"",';
1686: $resource_row .= '"'.&Apache::loncommon::csv_translate($field).'",';
1687: }
1688: foreach my $seq (@sequences) {
1689: $sequence_row .= '"'.
1690: &Apache::loncommon::csv_translate($seq->compTitle).'",';
1691: my $count = 0;
1692: if ($chosen_output->{'every_problem'}) {
1693: foreach my $res (&get_resources($navmap,$seq)) {
1694: if (scalar(@{$res->parts}) < 1) {
1695: next;
1696: }
1697: foreach my $part (@{$res->parts}) {
1698: $resource_row .= '"'.
1699: &Apache::loncommon::csv_translate
1700: ($res->compTitle.', Part '.$res->part_display($part)).'",';
1701: $count++;
1702: }
1703: }
1704: }
1705: $sequence_row.='"",'x$count;
1706: if ($chosen_output->{'sequence_sum'}) {
1707: if($chosen_output->{'correct'}) {
1708: $resource_row .= '"sum",';
1709: } else {
1710: $resource_row .= '"score",';
1711: }
1712: }
1713: if ($chosen_output->{'sequence_max'}) {
1714: $sequence_row.= '"",';
1715: $resource_row .= '"maximum possible",';
1716: }
1717: }
1718: if ($chosen_output->{'grand_total'}) {
1719: $sequence_row.= '"",';
1720: $resource_row.= '"Total",';
1721: }
1722: if ($chosen_output->{'grand_maximum'}) {
1723: $sequence_row.= '"",';
1724: $resource_row.= '"Maximum",';
1725: }
1726: chomp($sequence_row);
1727: chomp($resource_row);
1728: print $outputfile $sequence_row."\n";
1729: print $outputfile $resource_row."\n";
1730: return;
1731: }
1732:
1733: sub csv_outputstudent {
1734: my ($r,$student) = @_;
1735: if ($request_aborted || ! defined($navmap) || ! defined($outputfile)) {
1736: return;
1737: }
1738: my $Str = '';
1739: #
1740: # Output student fields
1741: my @to_show = &get_student_fields_to_show();
1742: foreach my $field (@to_show) {
1743: my $value = $student->{$field};
1744: if ($field eq 'comments') {
1745: $value = &Apache::lonmsgdisplay::retrieve_instructor_comments
1746: ($student->{'username'},$student->{'domain'});
1747: }
1748: $Str .= '"'.&Apache::loncommon::csv_translate($value).'",';
1749: }
1750: #
1751: # Get student assessment data
1752: my %StudentsData;
1753: my @tmp = &Apache::loncoursedata::get_current_state($student->{'username'},
1754: $student->{'domain'},
1755: undef,
1756: $env{'request.course.id'});
1757: if ((scalar @tmp > 0) && ($tmp[0] !~ /^error:/)) {
1758: %StudentsData = @tmp;
1759: }
1760: #
1761: # Output performance data
1762: my $total = 0;
1763: my $maximum = 0;
1764: foreach my $seq (@sequences) {
1765: my ($performance,$performance_length,$score,$seq_max,$rawdata);
1766: if ($chosen_output->{'tries'}){
1767: ($performance,$performance_length,$score,$seq_max,$rawdata) =
1768: &student_tries_on_sequence($student,\%StudentsData,
1769: $navmap,$seq,'no');
1770: } else {
1771: ($performance,$performance_length,$score,$seq_max,$rawdata) =
1772: &student_performance_on_sequence($student,\%StudentsData,
1773: $navmap,$seq,'no',
1774: $chosen_output->{ignore_weight});
1775: }
1776: if ($chosen_output->{'every_problem'}) {
1777: if ($chosen_output->{'correct'}) {
1778: $score = 0;
1779: # Deal with number of parts correct data
1780: $Str .= '"'.join('","',( map { if ($_>0) {
1781: $score += 1;
1782: 1;
1783: } else {
1784: 0;
1785: }
1786: } @$rawdata)).'",';
1787: } else {
1788: $Str .= '"'.join('","',(@$rawdata)).'",';
1789: }
1790: }
1791: if ($chosen_output->{'sequence_sum'}) {
1792: $Str .= '"'.$score.'",';
1793: }
1794: if ($chosen_output->{'sequence_max'}) {
1795: $Str .= '"'.$seq_max.'",';
1796: }
1797: $total+=$score;
1798: $maximum += $seq_max;
1799: }
1800: if ($chosen_output->{'grand_total'}) {
1801: $Str .= '"'.$total.'",';
1802: }
1803: if ($chosen_output->{'grand_maximum'}) {
1804: $Str .= '"'.$maximum.'",';
1805: }
1806: chop($Str);
1807: $Str .= "\n";
1808: print $outputfile $Str;
1809: #
1810: # Update the progress window
1811: &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,'last student');
1812: return;
1813: }
1814:
1815: sub csv_finish {
1816: my ($r) = @_;
1817: if ($request_aborted || ! defined($navmap) || ! defined($outputfile)) {
1818: &csv_cleanup();
1819: return;
1820: }
1821: close($outputfile);
1822: #
1823: # Close the progress window
1824: &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
1825: #
1826: # Tell the user where to get their csv file
1827: $r->print('<br />'.
1828: '<a href="'.$filename.'">'.&mt('Your csv file.').'</a>'."\n");
1829: $r->rflush();
1830: &csv_cleanup();
1831: return;
1832:
1833: }
1834:
1835: }
1836:
1837: # This function will return an HTML string including a star, with
1838: # a mouseover popup showing the "real" value. An optional second
1839: # argument lets you show something other than a star.
1840: sub show_star {
1841: my $popup = shift;
1842: my $symbol = shift || '*';
1843: # Escape the popup for JS.
1844: $popup =~ s/([^-a-zA-Z0-9:;,._ ()|!\/?=&*])/'\\' . sprintf("%lo", ord($1))/ge;
1845:
1846: return "<span class=\"LC_chrt_popup_exists\" onmouseover='popup_score(this, \"$popup\");return false;' onmouseout='popdown_score();return false;'>$symbol</span>";
1847: }
1848:
1849: #######################################################
1850: #######################################################
1851:
1852: =pod
1853:
1854: =item &StudentTriesOnSequence()
1855:
1856: Inputs:
1857:
1858: =over 4
1859:
1860: =item $student
1861:
1862: =item $studentdata Hash ref to all student data
1863:
1864: =item $seq Hash ref, the sequence we are working on
1865:
1866: =item $links if defined we will output links to each resource.
1867:
1868: =back
1869:
1870: =cut
1871:
1872: #######################################################
1873: #######################################################
1874: sub student_tries_on_sequence {
1875: my ($student,$studentdata,$navmap,$seq,$links) = @_;
1876: $links = 'no' if (! defined($links));
1877: my $Str = '';
1878: my ($sum,$max) = (0,0);
1879: my $performance_length = 0;
1880: my @TriesData = ();
1881: my $tries;
1882: my $hasdata = 0; # flag - true if the student has any data on the sequence
1883: foreach my $resource (&get_resources($navmap,$seq)) {
1884: my $resource_data = $studentdata->{$resource->symb};
1885: my $value = '';
1886: foreach my $partnum (@{$resource->parts()}) {
1887: $tries = undef;
1888: $max++;
1889: $performance_length++;
1890: my $symbol = ' '; # default to space
1891: #
1892: my $awarded = 0;
1893: if (exists($resource_data->{'resource.'.$partnum.'.awarded'})) {
1894: $awarded = $resource_data->{'resource.'.$partnum.'.awarded'};
1895: $awarded = 0 if (! $awarded);
1896: }
1897: #
1898: my $status = '';
1899: if (exists($resource_data->{'resource.'.$partnum.'.solved'})) {
1900: $status = $resource_data->{'resource.'.$partnum.'.solved'};
1901: }
1902: #
1903: my $tries = 0;
1904: if(exists($resource_data->{'resource.'.$partnum.'.tries'})) {
1905: $tries = $resource_data->{'resource.'.$partnum.'.tries'};
1906: $hasdata =1;
1907: }
1908: #
1909: if ($awarded > 0) {
1910: # The student has gotten the problem correct to some degree
1911: if ($status eq 'excused') {
1912: $symbol = 'x';
1913: $max--;
1914: } elsif ($status eq 'correct_by_override' && !$resource->is_task()) {
1915: $symbol = '+';
1916: $sum++;
1917: } elsif ($tries > 0) {
1918: if ($tries > 9) {
1919: $symbol = show_star($tries);
1920: } else {
1921: $symbol = $tries;
1922: }
1923: $sum++;
1924: } else {
1925: $symbol = '+';
1926: $sum++;
1927: }
1928: } else {
1929: # The student has the problem incorrect or it is ungraded
1930: if ($status eq 'excused') {
1931: $symbol = 'x';
1932: $max--;
1933: } elsif ($status eq 'incorrect_by_override') {
1934: $symbol = '-';
1935: } elsif ($status eq 'ungraded_attempted') {
1936: $symbol = 'u';
1937: } elsif ($status eq 'incorrect_attempted' ||
1938: $tries > 0) {
1939: $symbol = '.';
1940: } else {
1941: # Problem is wrong and has not been attempted.
1942: $symbol=' ';
1943: }
1944: }
1945: #
1946: if (! defined($tries)) {
1947: $tries = 0;
1948: }
1949: if ($status =~ /^(incorrect|ungraded)/) {
1950: # Bug 3390: show '-' for tries on incorrect problems
1951: # (csv & excel only)
1952: push(@TriesData,-$tries);
1953: } else {
1954: push (@TriesData,$tries);
1955: }
1956: #
1957: if ( ($links eq 'yes' && $symbol ne ' ') ||
1958: ($links eq 'all')) {
1959: if (length($symbol) > 1) {
1960: &Apache::lonnet::logthis('length of symbol "'.$symbol.'" > 1');
1961: }
1962: my $link = '/adm/grades'.
1963: '?symb='.&escape($resource->symb).
1964: '&student='.$student->{'username'}.
1965: '&userdom='.$student->{'domain'}.
1966: '&command=submission';
1967: $symbol = &link($symbol, $link);
1968: }
1969: $value .= $symbol;
1970: }
1971: $Str .= $value;
1972: }
1973: if ($seq->randompick()) {
1974: $max = $seq->randompick();
1975: }
1976: if (! $hasdata && $sum == 0) {
1977: $sum = ' ';
1978: }
1979: return ($Str,$performance_length,$sum,$max,\@TriesData);
1980: }
1981:
1982: =pod
1983:
1984: =item &link
1985:
1986: Inputs:
1987:
1988: =over 4
1989:
1990: =item $text
1991:
1992: =item $target
1993:
1994: =back
1995:
1996: Takes the text and creates a link to the $text that honors
1997: the value of 'new window' if clicked on, but uses a real
1998: 'href' so middle and right clicks still work.
1999:
2000: $target and $text are assumed to be already correctly escaped; i.e., it
2001: can be dumped out directly into the output stream as-is.
2002:
2003: =cut
2004:
2005: sub link {
2006: my ($text,$target) = @_;
2007: return
2008: "<a href='$target' onclick=\"t=this.href;if(new_window)"
2009: ."{window.open(t)}else{return void(window."
2010: ."location=t)};return false;\">$text</a>";
2011: }
2012:
2013: #######################################################
2014: #######################################################
2015:
2016: =pod
2017:
2018: =item &student_performance_on_sequence
2019:
2020: Inputs:
2021:
2022: =over 4
2023:
2024: =item $student
2025:
2026: =item $studentdata Hash ref to all student data
2027:
2028: =item $seq Hash ref, the sequence we are working on
2029:
2030: =item $links if defined we will output links to each resource.
2031:
2032: =back
2033:
2034: =cut
2035:
2036: #######################################################
2037: #######################################################
2038: sub student_performance_on_sequence {
2039: my ($student,$studentdata,$navmap,$seq,$links,$awarded_only) = @_;
2040: $links = 'no' if (! defined($links));
2041: my $Str = ''; # final result string
2042: my ($score,$max) = (0,0);
2043: my $performance_length = 0;
2044: my $symbol;
2045: my @ScoreData = ();
2046: my $partscore;
2047: my $hasdata = 0; # flag, 0 if there were no submissions on the sequence
2048: foreach my $resource (&get_resources($navmap,$seq)) {
2049: my $symb = $resource->symb;
2050: my $resource_data = $studentdata->{$symb};
2051: foreach my $part (@{$resource->parts()}) {
2052: $partscore = undef;
2053: my $weight;
2054: if (!$awarded_only){
2055: $weight = &Apache::lonnet::EXT('resource.'.$part.'.weight',
2056: $symb,
2057: $student->{'domain'},
2058: $student->{'username'},
2059: $student->{'section'});
2060: }
2061: if (!defined($weight) || ($weight eq '')) {
2062: $weight=1;
2063: }
2064: #
2065: $max += $weight; # see the 'excused' branch below...
2066: $performance_length++; # one character per part
2067: $symbol = ' '; # default to space
2068: #
2069: my $awarded;
2070: if (exists($resource_data->{'resource.'.$part.'.awarded'})) {
2071: $awarded = $resource_data->{'resource.'.$part.'.awarded'};
2072: $awarded = 0 if (! $awarded);
2073: $hasdata = 1;
2074: }
2075: #
2076: $partscore = &Apache::grades::compute_points($weight,$awarded);
2077: if (! defined($awarded)) {
2078: $partscore = undef;
2079: }
2080: $score += $partscore;
2081: $symbol = $partscore;
2082: if (abs($symbol - sprintf("%.0f",$symbol)) < 0.001) {
2083: $symbol = sprintf("%.0f",$symbol);
2084: }
2085: if (length($symbol) > 1) {
2086: $symbol = show_star($symbol);
2087: }
2088: if (exists($resource_data->{'resource.'.$part.'.solved'}) &&
2089: $resource_data->{'resource.'.$part.'.solved'} ne '') {
2090: my $status = $resource_data->{'resource.'.$part.'.solved'};
2091: if ($status eq 'excused') {
2092: $symbol = 'x';
2093: $max -= $weight; # Do not count 'excused' problems.
2094: } elsif ($status eq 'ungraded_attempted') {
2095: $symbol = 'u';
2096: }
2097: $hasdata = 1;
2098: } elsif ($resource_data->{'resource.'.$part.'.award'} eq 'DRAFT') {
2099: $symbol = 'd';
2100: $hasdata = 1;
2101: } elsif (!exists($resource_data->{'resource.'.$part.'.awarded'})){
2102: # Unsolved. Did they try?
2103: if (exists($resource_data->{'resource.'.$part.'.tries'})){
2104: $symbol = '.';
2105: $hasdata = 1;
2106: } else {
2107: $symbol = ' ';
2108: }
2109: }
2110: #
2111: if (! defined($partscore)) {
2112: $partscore = $symbol;
2113: }
2114: push (@ScoreData,$partscore);
2115: #
2116: if ( ($links eq 'yes' && $symbol ne ' ') || ($links eq 'all')) {
2117: my $link = '/adm/grades' .
2118: '?symb='.&escape($symb).
2119: '&student='.$student->{'username'}.
2120: '&userdom='.$student->{'domain'}.
2121: '&command=submission';
2122: $symbol = &link($symbol, $link);
2123: }
2124: $Str .= $symbol;
2125: }
2126: }
2127: if (! $hasdata && $score == 0) {
2128: $score = ' ';
2129: }
2130: return ($Str,$performance_length,$score,$max,\@ScoreData);
2131: }
2132:
2133: #######################################################
2134: #######################################################
2135:
2136: =pod
2137:
2138: =item &CreateLegend()
2139:
2140: This function returns a formatted string containing the legend for the
2141: chart. The legend describes the symbols used to represent grades for
2142: problems.
2143:
2144: =cut
2145:
2146: #######################################################
2147: #######################################################
2148: sub CreateLegend {
2149: my $Str = "<p><pre>".
2150: " digit score or number of tries to get correct ".
2151: " * correct by student in more than 9 tries\n".
2152: " + correct by hand grading or override\n".
2153: " - incorrect by override\n".
2154: " . incorrect attempted\n".
2155: " u ungraded attempted\n".
2156: " d draft answer saved but not submitted\n".
2157: " not attempted (blank field)\n".
2158: " x excused".
2159: "</pre><p>";
2160: return $Str;
2161: }
2162:
2163: #######################################################
2164: #######################################################
2165:
2166: =pod
2167:
2168: =back
2169:
2170: =cut
2171:
2172: #######################################################
2173: #######################################################
2174:
2175: 1;
2176:
2177: __END__
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