1: # The LearningOnline Network with CAPA
2: #
3: # $Id: lonstudentassessment.pm,v 1.148 2008/09/14 15:16:30 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="" readonly="readonly" />');
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: my $labeltext = &mt('Show links in new window:');
675: $r->print(<<NEW_WINDOW_CHECKBOX);
676: <script type="text/javascript">new_window = true;</script>
677: <p><label>$labeltext
678: <input type="checkbox" checked="1" onclick="new_window=this.checked" />
679: </label></p>
680: NEW_WINDOW_CHECKBOX
681: }
682:
683: #
684: $r->print("<h3>".$env{'course.'.$env{'request.course.id'}.'.description'}.
685: " ".localtime(time)."</h3>");
686: #
687: if ($chosen_output->{'base'} !~ /^final table/) {
688: $r->print("<h3>".&mt($chosen_output->{'shortdesc'})."</h3>");
689: }
690: my $Str = "<pre>\n";
691: # First, the @StudentData fields need to be listed
692: my @to_show = &get_student_fields_to_show();
693: foreach my $field (@to_show) {
694: my $title=$Apache::lonstatistics::StudentData{$field}->{'title'};
695: my $base =$Apache::lonstatistics::StudentData{$field}->{'base_width'};
696: my $width=$Apache::lonstatistics::StudentData{$field}->{'width'};
697: $Str .= $title.' 'x($width-$base).$padding;
698: }
699: #
700: # Compute the column widths and output the sequence titles
701: my $total_count;
702: #
703: # Compute sequence widths
704: my $starttime = Time::HiRes::time;
705: foreach my $seq (@sequences) {
706: my $symb = $seq->symb;
707: my $title = $seq->compTitle;
708: $width{$symb}->{'width_sum'} = 0;
709: # Compute width of sum
710: if ($chosen_output->{'sequence_sum'}) {
711: if ($chosen_output->{'every_problem'}) {
712: # Use 1 digit for a space
713: $width{$symb}->{'width_sum'} += 1;
714: }
715: $total_count += &count_parts($navmap,$seq);
716: # Use 3 digits for the sum
717: $width{$symb}->{'width_sum'} += 3;
718: }
719: # Compute width of maximum
720: if ($chosen_output->{'sequence_max'}) {
721: if ($width{$symb}->{'width_sum'}>0) {
722: # One digit for the '/'
723: $width{$symb}->{'width_sum'} +=1;
724: }
725: # Use 3 digits for the total
726: $width{$symb}->{'width_sum'}+=3;
727: }
728: #
729: if ($chosen_output->{'every_problem'}) {
730: # one problem per digit
731: $width{$symb}->{'width_parts'}= &count_parts($navmap,$seq);
732: $width{$symb}->{'width_problem'} += $width{$symb}->{'width_parts'};
733: } else {
734: $width{$symb}->{'width_problem'} = 0;
735: }
736: $width{$symb}->{'width_total'} = $width{$symb}->{'width_problem'} +
737: $width{$symb}->{'width_sum'};
738: if ($width{$symb}->{'width_total'} < length(&HTML::Entities::decode($title))) {
739: $width{$symb}->{'width_total'} = length(&HTML::Entities::decode($title));
740: }
741: #
742: # Output the sequence titles
743: $Str .= $title.(' 'x($width{$symb}->{'width_total'}-
744: length($title)
745: )).$padding;
746: }
747: $total_sum_width = length($total_count)+1;
748: $Str .= " total</pre>\n";
749: $Str .= "<pre>";
750: $r->print($Str);
751: $r->rflush();
752:
753: $r->print(<<JS);
754: <script type="text/javascript">
755: // get the left offset of a given widget as an absolute position
756: function getLeftOffset (element) {
757: return collect(element, "offsetLeft");
758: }
759:
760: // get the top offset of a given widget as an absolute position
761: function getTopOffset (element) {
762: return collect(element, "offsetTop");
763: }
764:
765: function collect(element, att) {
766: var val = 0;
767: while(element) {
768: val += element[att];
769: element = element.offsetParent;
770: }
771: return val;
772: }
773:
774: var currentDiv;
775: var currentElement;
776: function popup_score(element, score) {
777: popdown_score();
778: var left = getLeftOffset(element);
779: var top = getTopOffset(element);
780: var div = document.createElement("div");
781: div.className = "LC_chrt_popup";
782: div.appendChild(document.createTextNode(score));
783: div.style.position = "absolute";
784: div.style.top = (top - 25) + "px";
785: div.style.left = (left - 10) + "px";
786: currentDiv = div;
787: document.body.insertBefore(div, document.body.childNodes[0]);
788: element.className = "LC_chrt_popup_up";
789: currentElement = element;
790: }
791:
792: function popdown_score() {
793: if (currentDiv) {
794: document.body.removeChild(currentDiv);
795: }
796: if (currentElement) {
797: currentElement.className = 'LC_chrt_popup_exists';
798: }
799: currentDiv = undefined;
800: }
801: </script>
802: JS
803:
804: #
805: # Let the user know what we are doing
806: my $studentcount = scalar(@Apache::lonstatistics::Students);
807: if ($env{'form.SelectedStudent'}) {
808: $studentcount = '1';
809: }
810: #
811: # Initialize progress window
812: %prog_state=&Apache::lonhtmlcommon::Create_PrgWin
813: ($r,'HTML Chart Status',
814: 'HTML Chart Progress', $studentcount,
815: 'inline',undef,'Statistics','stats_status');
816: #
817: &Apache::lonhtmlcommon::Update_PrgWin($r,\%prog_state,
818: 'Processing first student');
819: return;
820: }
821:
822: sub html_outputstudent {
823: my ($r,$student) = @_;
824: my $Str = '';
825: return if (! defined($navmap));
826: #
827: if($count++ % 5 == 0 && $count > 0) {
828: $r->print("</pre><pre>");
829: }
830: # First, the @StudentData fields need to be listed
831: my @to_show = &get_student_fields_to_show();
832: foreach my $field (@to_show) {
833: my $title=$student->{$field};
834: # Deal with 'comments' - how I love special cases
835: if ($field eq 'comments') {
836: $title = '<a href="/adm/'.$student->{'domain'}.'/'.$student->{'username'}.'/'.'aboutme#coursecomment">'.&mt('Comments').'</a>';
837: }
838: my $base = length($title);
839: my $width=$Apache::lonstatistics::StudentData{$field}->{'width'};
840: $Str .= $title.' 'x($width-$base).$padding;
841: }
842: # Get ALL the students data
843: my %StudentsData;
844: my @tmp = &Apache::loncoursedata::get_current_state
845: ($student->{'username'},$student->{'domain'},undef,
846: $env{'request.course.id'});
847: if ((scalar @tmp > 0) && ($tmp[0] !~ /^error:(.*)/)) {
848: %StudentsData = @tmp;
849: } else {
850: my $error = $1;
851: if (scalar(@tmp) < 1) {
852: $Str .= '<font color="blue">No Course Data</font>'."\n";
853: } else {
854: $Str .= '<span class="LC_error">Error getting student data ('.
855: $error.') </span>'."\n";
856: }
857: $nodata_count++;
858: $r->print($Str);
859: $r->rflush();
860: return;
861: }
862: #
863: # By sequence build up the data
864: my $studentstats;
865: my $PerformanceStr = '';
866: foreach my $seq (@sequences) {
867: my $symb = $seq->symb;
868: my ($performance,$performance_length,$score,$seq_max,$rawdata);
869: if ($chosen_output->{'tries'}) {
870: ($performance,$performance_length,$score,$seq_max,$rawdata) =
871: &student_tries_on_sequence($student,\%StudentsData,
872: $navmap,$seq,$show_links);
873: } else {
874: ($performance,$performance_length,$score,$seq_max,$rawdata) =
875: &student_performance_on_sequence($student,\%StudentsData,
876: $navmap,$seq,$show_links,
877: $chosen_output->{ignore_weight});
878: }
879: my $ratio='';
880: if ($chosen_output->{'every_problem'} &&
881: $chosen_output->{'sequence_sum'}) {
882: $ratio .= ' ';
883: }
884: if ($chosen_output->{'sequence_sum'} && $score ne ' ') {
885: my $score .= sprintf("%3.0f",$score);
886: $ratio .= (' 'x(3-length($score))).$score;
887: } elsif($chosen_output->{'sequence_sum'}) {
888: $ratio .= ' 'x3;
889: }
890: if ($chosen_output->{'sequence_max'}) {
891: if ($chosen_output->{'sequence_sum'}) {
892: $ratio .= '/';
893: }
894: $ratio .= sprintf("%3.0f",$seq_max);
895: }
896: #
897: if (! $chosen_output->{'every_problem'}) {
898: $performance = '';
899: $performance_length=0;
900: }
901: $performance .= ' 'x($width{$symb}->{'width_total'} -
902: $performance_length -
903: $width{$symb}->{'width_sum'}).
904: $ratio;
905: #
906: $Str .= $performance.$padding;
907: #
908: $studentstats->{$symb}->{'score'}= $score;
909: $studentstats->{$symb}->{'max'} = $seq_max;
910: }
911: #
912: # Total it up and store the statistics info.
913: my ($score,$max);
914: while (my ($symb,$seq_stats) = each (%{$studentstats})) {
915: $Statistics->{$symb}->{'score'} += $seq_stats->{'score'};
916: if ($Statistics->{$symb}->{'max'} < $seq_stats->{'max'}) {
917: $Statistics->{$symb}->{'max'} = $seq_stats->{'max'};
918: }
919: if ($seq_stats->{'score'} ne ' ') {
920: $score += $seq_stats->{'score'};
921: $Statistics->{$symb}->{'num_students'}++;
922: }
923: $max += $seq_stats->{'max'};
924: }
925: if (! defined($score)) {
926: $score = ' ' x $total_sum_width;
927: } else {
928: $score = sprintf("%.0f",$score);
929: $score = (' 'x(3-length($score))).$score;
930: }
931: $Str .= ' '.' 'x($total_sum_width-length($score)).$score.' / '.$max;
932: $Str .= " \n";
933: #
934: $r->print($Str);
935: #
936: $r->rflush();
937: &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,'last student');
938: return;
939: }
940:
941: sub html_finish {
942: my ($r) = @_;
943: return if (! defined($navmap));
944: #
945: # Check for suppressed output and close the progress window if so
946: $r->print("</pre>\n");
947: if ($chosen_output->{'summary_table'}) {
948: if ($single_student_mode) {
949: $r->print(&SingleStudentTotal());
950: } else {
951: $r->print(&StudentAverageTotal());
952: }
953: }
954: $r->rflush();
955: &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
956: &html_cleanup();
957: return;
958: }
959:
960: sub StudentAverageTotal {
961: my $Str = '<h3>'.&mt('Summary Tables').'</h3>'.$/;
962: $Str .= '<table border=2 cellspacing="1">'."\n";
963: $Str .= '<tr>'.
964: '<th>'.&mt('Title').'</th>'.
965: '<th>'.&mt('Average').'</th>'.
966: '<th>'.&mt('Maximum').'</th>'.
967: '</tr>'.$/;
968: foreach my $seq (@sequences) {
969: my $symb = $seq->symb;
970: my $ave;
971: my $num_students = $Statistics->{$symb}->{'num_students'};
972: if ($num_students > 0) {
973: $ave = int(100*
974: ($Statistics->{$symb}->{'score'}/$num_students)
975: )/100;
976: } else {
977: $ave = 0;
978: }
979: my $max = $Statistics->{$symb}->{'max'};
980: $ave = sprintf("%.2f",$ave);
981: $Str .= '<tr><td>'.$seq->compTitle.'</td>'.
982: '<td align="right">'.$ave.' </td>'.
983: '<td align="right">'.$max.' '.'</td></tr>'."\n";
984: }
985: $Str .= "</table>\n";
986: return $Str;
987: }
988:
989: sub SingleStudentTotal {
990: return if (! defined($navmap));
991: my $student = &Apache::lonstatistics::current_student();
992: my $Str = '<h3>'.&mt('Summary table for [_1] ([_2]@[_3])',
993: $student->{'fullname'},
994: $student->{'username'},$student->{'domain'}).'</h3>';
995: $Str .= $/;
996: $Str .= '<table border=2 cellspacing="1">'."\n";
997: $Str .=
998: '<tr>'.
999: '<th>'.&mt('Sequence or Folder').'</th>';
1000: if ($chosen_output->{'base'} eq 'tries') {
1001: $Str .= '<th>'.&mt('Parts Correct').'</th>';
1002: } else {
1003: $Str .= '<th>'.&mt('Score').'</th>';
1004: }
1005: $Str .= '<th>'.&mt('Maximum').'</th>'."</tr>\n";
1006: my $total = 0;
1007: my $total_max = 0;
1008: foreach my $seq (@sequences) {
1009: my $value = $Statistics->{$seq->symb}->{'score'};
1010: my $max = $Statistics->{$seq->symb}->{'max'};
1011: $Str .= '<tr><td>'.&HTML::Entities::encode($seq->compTitle).'</td>'.
1012: '<td align="right">'.$value.'</td>'.
1013: '<td align="right">'.$max.'</td></tr>'."\n";
1014: $total += $value;
1015: $total_max +=$max;
1016: }
1017: $Str .= '<tr><td><b>'.&mt('Total').'</b></td>'.
1018: '<td align="right">'.$total.'</td>'.
1019: '<td align="right">'.$total_max."</td></tr>\n";
1020: $Str .= "</table>\n";
1021: return $Str;
1022: }
1023:
1024: }
1025:
1026: #######################################################
1027: #######################################################
1028:
1029: =pod
1030:
1031: =head2 EXCEL subroutines
1032:
1033: =item &excel_initialize($r)
1034:
1035: =item &excel_outputstudent($r,$student)
1036:
1037: =item &excel_finish($r)
1038:
1039: =cut
1040:
1041: #######################################################
1042: #######################################################
1043: {
1044:
1045: my $excel_sheet;
1046: my $excel_workbook;
1047: my $format;
1048:
1049: my $filename;
1050: my $rows_output;
1051: my $cols_output;
1052:
1053: my %prog_state; # progress window state
1054: my $request_aborted;
1055:
1056: my $total_formula;
1057: my $maximum_formula;
1058: my %formula_data;
1059:
1060: my $navmap;
1061: my @sequences;
1062:
1063: sub excel_cleanup {
1064: #
1065: undef ($excel_sheet);
1066: undef ($excel_workbook);
1067: undef ($filename);
1068: undef ($rows_output);
1069: undef ($cols_output);
1070: undef (%prog_state);
1071: undef ($request_aborted);
1072: undef ($total_formula);
1073: undef ($maximum_formula);
1074: #
1075: undef(%formula_data);
1076: #
1077: undef($navmap);
1078: undef(@sequences);
1079: }
1080:
1081: sub excel_initialize {
1082: my ($r) = @_;
1083:
1084: &excel_cleanup();
1085: ($navmap,@sequences) =
1086: &Apache::lonstatistics::selected_sequences_with_assessments();
1087: if (! ref($navmap)) {
1088: # Unable to get data, so bail out
1089: $r->print("<h3>".
1090: &mt('Unable to retrieve course information.').
1091: '</h3>');
1092: }
1093: #
1094: my $total_columns = scalar(&get_student_fields_to_show());
1095: my $num_students = scalar(@Apache::lonstatistics::Students);
1096: #
1097: foreach my $seq (@sequences) {
1098: if ($chosen_output->{'every_problem'}) {
1099: $total_columns+=&count_parts($navmap,$seq);
1100: }
1101: # Add 2 because we need a 'sequence_sum' and 'total' column for each
1102: $total_columns += 2;
1103: }
1104: my $too_many_cols_error_message =
1105: '<h2>'.&mt('Unable to Complete Request').'</h2>'.$/.
1106: '<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>'.$/.
1107: '<p>'.&mt('You may consider reducing the number of <b>Sequences or Folders</b> you have selected.').'</p>'.$/.
1108: '<p>'.&mt('LON-CAPA can produce <b>CSV</b> files of this data or Excel files of the <b>Scores Summary</b> data.').'</p>'.$/;
1109: if ($chosen_output->{'base'} eq 'tries' && $total_columns > 255) {
1110: $r->print($too_many_cols_error_message);
1111: $request_aborted = 1;
1112: }
1113: if ($chosen_output->{'base'} eq 'scores' && $total_columns > 255) {
1114: $r->print($too_many_cols_error_message);
1115: $request_aborted = 1;
1116: }
1117: return if ($request_aborted);
1118: #
1119: #
1120: $excel_workbook = undef;
1121: $excel_sheet = undef;
1122: #
1123: $rows_output = 0;
1124: $cols_output = 0;
1125: #
1126: # Determine rows
1127: my $header_row = $rows_output++;
1128: my $description_row = $rows_output++;
1129: my $notes_row = $rows_output++;
1130: $rows_output++; # blank row
1131: my $summary_header_row;
1132: if ($chosen_output->{'summary_table'}) {
1133: $summary_header_row = $rows_output++;
1134: $rows_output+= scalar(@sequences);
1135: $rows_output++;
1136: }
1137: my $sequence_name_row = $rows_output++;
1138: my $resource_name_row = $rows_output++;
1139: my $maximum_data_row = $rows_output++;
1140: if (! $chosen_output->{'maximum_row'}) {
1141: $rows_output--;
1142: }
1143: my $first_data_row = $rows_output++;
1144: #
1145: # Create sheet
1146: ($excel_workbook,$filename,$format)=
1147: &Apache::loncommon::create_workbook($r);
1148: return if (! defined($excel_workbook));
1149: #
1150: # Add a worksheet
1151: my $sheetname = $env{'course.'.$env{'request.course.id'}.'.description'};
1152: $sheetname = &Apache::loncommon::clean_excel_name($sheetname);
1153: $excel_sheet = $excel_workbook->addworksheet($sheetname);
1154: #
1155: # Put the course description in the header
1156: $excel_sheet->write($header_row,$cols_output++,
1157: $env{'course.'.$env{'request.course.id'}.'.description'},
1158: $format->{'h1'});
1159: $cols_output += 3;
1160: #
1161: # Put a description of the sections listed
1162: my $sectionstring = '';
1163: my @Sections = &Apache::lonstatistics::get_selected_sections();
1164: $excel_sheet->write($header_row,$cols_output++,
1165: &Apache::lonstatistics::section_and_enrollment_description('plaintext'),
1166: $format->{'h3'});
1167: #
1168: # Put the date in there too
1169: $excel_sheet->write($header_row,$cols_output++,
1170: 'Compiled on '.localtime(time),$format->{'h3'});
1171: #
1172: $cols_output = 0;
1173: $excel_sheet->write($description_row,$cols_output++,
1174: $chosen_output->{'shortdesc'},
1175: $format->{'b'});
1176: #
1177: $cols_output = 0;
1178: $excel_sheet->write($notes_row,$cols_output++,
1179: $chosen_output->{'non_html_notes'},
1180: $format->{'i'});
1181:
1182: ##############################################
1183: # Output headings for the raw data
1184: ##############################################
1185: #
1186: # Add the student headers
1187: $cols_output = 0;
1188: foreach my $field (&get_student_fields_to_show()) {
1189: $excel_sheet->write($resource_name_row,$cols_output++,$field,
1190: $format->{'bold'});
1191: }
1192: #
1193: # Add the remaining column headers
1194: my $total_formula_string = '=0';
1195: my $maximum_formula_string = '=0';
1196: foreach my $seq (@sequences) {
1197: my $symb = $seq->symb;
1198: $excel_sheet->write($sequence_name_row,,
1199: $cols_output,$seq->compTitle,$format->{'bold'});
1200: # Determine starting cell
1201: $formula_data{$symb}->{'Excel:startcell'}=
1202: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1203: ($first_data_row,$cols_output);
1204: $formula_data{$symb}->{'Excel:startcol'}=$cols_output;
1205: my $count = 0;
1206: if ($chosen_output->{'every_problem'}) {
1207: # Put the names of the problems and parts into the sheet
1208: foreach my $res (&get_resources($navmap,$seq)) {
1209: if (scalar(@{$res->parts}) > 1) {
1210: foreach my $part (@{$res->parts}) {
1211: $excel_sheet->write($resource_name_row,
1212: $cols_output++,
1213: $res->compTitle.' part '.$res->part_display($part),
1214: $format->{'bold'});
1215: $count++;
1216: }
1217: } else {
1218: $excel_sheet->write($resource_name_row,
1219: $cols_output++,
1220: $res->compTitle,$format->{'bold'});
1221: $count++;
1222: }
1223: }
1224: }
1225: # Determine ending cell
1226: if ($count <= 1) {
1227: $formula_data{$symb}->{'Excel:endcell'} = $formula_data{$symb}->{'Excel:startcell'};
1228: $formula_data{$symb}->{'Excel:endcol'} = $formula_data{$symb}->{'Excel:startcol'};
1229: } else {
1230: $formula_data{$symb}->{'Excel:endcell'} =
1231: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1232: ($first_data_row,$cols_output-1);
1233: $formula_data{$symb}->{'Excel:endcol'} = $cols_output-1;
1234: }
1235: # Create the formula for summing up this sequence
1236: if (! exists($formula_data{$symb}->{'Excel:endcell'}) ||
1237: ! defined($formula_data{$symb}->{'Excel:endcell'})) {
1238: $formula_data{$symb}->{'Excel:endcell'} = $formula_data{$symb}->{'Excel:startcell'};
1239: }
1240:
1241: my $start = $formula_data{$symb}->{'Excel:startcell'};
1242: my $end = $formula_data{$symb}->{'Excel:endcell'};
1243: $formula_data{$symb}->{'Excel:sum'}= $excel_sheet->store_formula
1244: ("=IF(COUNT($start\:$end),SUM($start\:$end),\"\")");
1245: # Determine cell the score is held in
1246: $formula_data{$symb}->{'Excel:scorecell'} =
1247: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1248: ($first_data_row,$cols_output);
1249: $formula_data{$symb}->{'Excel:scorecol'}=$cols_output;
1250: if ($chosen_output->{'base'} eq 'parts correct total') {
1251: $excel_sheet->write($resource_name_row,$cols_output++,
1252: 'parts correct',
1253: $format->{'bold'});
1254: } elsif ($chosen_output->{'sequence_sum'}) {
1255: if ($chosen_output->{'correct'}) {
1256: # Only reporting the number correct, so do not call it score
1257: $excel_sheet->write($resource_name_row,$cols_output++,
1258: 'sum',
1259: $format->{'bold'});
1260: } else {
1261: $excel_sheet->write($resource_name_row,$cols_output++,
1262: 'score',
1263: $format->{'bold'});
1264: }
1265: }
1266: #
1267: $total_formula_string.='+'.
1268: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1269: ($first_data_row,$cols_output-1);
1270: if ($chosen_output->{'sequence_max'}) {
1271: $excel_sheet->write($resource_name_row,$cols_output,
1272: 'maximum',
1273: $format->{'bold'});
1274: $formula_data{$symb}->{'Excel:maxcell'} =
1275: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1276: ($first_data_row,$cols_output);
1277: $formula_data{$symb}->{'Excel:maxcol'}=$cols_output;
1278: $maximum_formula_string.='+'.
1279: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1280: ($first_data_row,$cols_output);
1281: $cols_output++;
1282:
1283: }
1284: }
1285: if ($chosen_output->{'grand_total'}) {
1286: $excel_sheet->write($resource_name_row,$cols_output++,'Total',
1287: $format->{'bold'});
1288: }
1289: if ($chosen_output->{'grand_maximum'}) {
1290: $excel_sheet->write($resource_name_row,$cols_output++,'Max. Total',
1291: $format->{'bold'});
1292: }
1293: $total_formula = $excel_sheet->store_formula($total_formula_string);
1294: $maximum_formula = $excel_sheet->store_formula($maximum_formula_string);
1295: ##############################################
1296: # Output a row for MAX, if appropriate
1297: ##############################################
1298: if ($chosen_output->{'maximum_row'}) {
1299: $cols_output = 0;
1300: foreach my $field (&get_student_fields_to_show()) {
1301: if ($field eq 'username' || $field eq 'fullname' ||
1302: $field eq 'id') {
1303: $excel_sheet->write($maximum_data_row,$cols_output++,'Maximum',
1304: $format->{'bold'});
1305: } else {
1306: $excel_sheet->write($maximum_data_row,$cols_output++,'');
1307: }
1308: }
1309: #
1310: # Add the maximums for each sequence or assessment
1311: my %total_cell_translation;
1312: my %maximum_cell_translation;
1313: foreach my $seq (@sequences) {
1314: my $symb = $seq->symb;
1315: $cols_output=$formula_data{$symb}->{'Excel:startcol'};
1316: $total_cell_translation{$formula_data{$symb}->{'Excel:scorecell'}}=
1317: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1318: ($maximum_data_row,$formula_data{$symb}->{'Excel:scorecol'});
1319: $maximum_cell_translation{$formula_data{$symb}->{'Excel:maxcell'}}=
1320: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1321: ($maximum_data_row,$formula_data{$symb}->{'Excel:maxcol'});
1322: my $weight;
1323: my $max = 0;
1324: foreach my $resource (&get_resources($navmap,$seq)) {
1325: foreach my $part (@{$resource->parts}){
1326: $weight = 1;
1327: if ($chosen_output->{'scores'}) {
1328: $weight = &Apache::lonnet::EXT
1329: ('resource.'.$part.'.weight',$resource->symb,
1330: undef,undef,undef);
1331: if (!defined($weight) || ($weight eq '')) {
1332: $weight=1;
1333: }
1334: }
1335: if ($chosen_output->{'scores'} &&
1336: $chosen_output->{'every_problem'}) {
1337: $excel_sheet->write($maximum_data_row,$cols_output++,
1338: $weight);
1339: }
1340: $max += $weight;
1341: }
1342: }
1343: #
1344: if ($chosen_output->{'sequence_sum'} &&
1345: $chosen_output->{'every_problem'}) {
1346: my %replaceCells=
1347: ('^'.$formula_data{$symb}->{'Excel:startcell'}.':'.
1348: $formula_data{$symb}->{'Excel:endcell'}.'$' =>
1349: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell($maximum_data_row,$formula_data{$symb}->{'Excel:startcol'}).':'.
1350: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell($maximum_data_row,$formula_data{$symb}->{'Excel:endcol'}));
1351: $excel_sheet->repeat_formula($maximum_data_row,$cols_output++,
1352: $formula_data{$symb}->{'Excel:sum'},undef,
1353: %replaceCells, %replaceCells);
1354:
1355: } elsif ($chosen_output->{'sequence_sum'}) {
1356: $excel_sheet->write($maximum_data_row,$cols_output++,$max);
1357: }
1358: if ($chosen_output->{'sequence_max'}) {
1359: $excel_sheet->write($maximum_data_row,$cols_output++,$max);
1360: }
1361: #
1362: }
1363: if ($chosen_output->{'grand_total'}) {
1364: $excel_sheet->repeat_formula($maximum_data_row,$cols_output++,
1365: $total_formula,undef,
1366: %total_cell_translation);
1367: }
1368: if ($chosen_output->{'grand_maximum'}) {
1369: $excel_sheet->repeat_formula($maximum_data_row,$cols_output++,
1370: $maximum_formula,undef,
1371: %maximum_cell_translation);
1372: }
1373: } # End of MAXIMUM row output if ($chosen_output->{'maximum_row'}) {
1374: $rows_output = $first_data_row;
1375: ##############################################
1376: # Output summary table, which actually is above the sequence name row.
1377: ##############################################
1378: if ($chosen_output->{'summary_table'}) {
1379: $cols_output = 0;
1380: $excel_sheet->write($summary_header_row,$cols_output++,
1381: 'Summary Table',$format->{'bold'});
1382: if ($chosen_output->{'maximum_row'}) {
1383: $excel_sheet->write($summary_header_row,$cols_output++,
1384: 'Maximum',$format->{'bold'});
1385: }
1386: $excel_sheet->write($summary_header_row,$cols_output++,
1387: 'Average',$format->{'bold'});
1388: $excel_sheet->write($summary_header_row,$cols_output++,
1389: 'Median',$format->{'bold'});
1390: $excel_sheet->write($summary_header_row,$cols_output++,
1391: 'Std Dev',$format->{'bold'});
1392: my $row = $summary_header_row+1;
1393: foreach my $seq (@sequences) {
1394: my $symb = $seq->symb;
1395: $cols_output = 0;
1396: $excel_sheet->write($row,$cols_output++,
1397: $seq->compTitle,
1398: $format->{'bold'});
1399: if ($chosen_output->{'maximum_row'}) {
1400: $excel_sheet->write
1401: ($row,$cols_output++,
1402: '='.
1403: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1404: ($maximum_data_row,$formula_data{$symb}->{'Excel:scorecol'})
1405: );
1406: }
1407: my $range =
1408: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1409: ($first_data_row,$formula_data{$symb}->{'Excel:scorecol'}).
1410: ':'.
1411: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1412: ($first_data_row+$num_students-1,$formula_data{$symb}->{'Excel:scorecol'});
1413: $excel_sheet->write($row,$cols_output++,
1414: '=AVERAGE('.$range.')');
1415: $excel_sheet->write($row,$cols_output++,
1416: '=MEDIAN('.$range.')');
1417: $excel_sheet->write($row,$cols_output++,
1418: '=STDEV('.$range.')');
1419: $row++;
1420: }
1421: }
1422: ##############################################
1423: # Take care of non-excel initialization
1424: ##############################################
1425: #
1426: # Let the user know what we are doing
1427: my $studentcount = scalar(@Apache::lonstatistics::Students);
1428: if ($env{'form.SelectedStudent'}) {
1429: $studentcount = '1';
1430: }
1431: if ($studentcount > 1) {
1432: $r->print('<h1>'.&mt('Compiling Excel spreadsheet for [_1] students',
1433: $studentcount)."</h1>\n");
1434: } else {
1435: $r->print('<h1>'.
1436: &mt('Compiling Excel spreadsheet for 1 student').
1437: "</h1>\n");
1438: }
1439: $r->rflush();
1440: #
1441: # Initialize progress window
1442: %prog_state=&Apache::lonhtmlcommon::Create_PrgWin
1443: ($r,'Excel File Compilation Status',
1444: 'Excel File Compilation Progress', $studentcount,
1445: 'inline',undef,'Statistics','stats_status');
1446: #
1447: &Apache::lonhtmlcommon::Update_PrgWin($r,\%prog_state,
1448: 'Processing first student');
1449: return;
1450: }
1451:
1452: sub excel_outputstudent {
1453: my ($r,$student) = @_;
1454: if ($request_aborted || ! defined($navmap) || ! defined($excel_sheet)) {
1455: return;
1456: }
1457: $cols_output=0;
1458: #
1459: # Write out student data
1460: my @to_show = &get_student_fields_to_show();
1461: foreach my $field (@to_show) {
1462: my $value = $student->{$field};
1463: if ($field eq 'comments') {
1464: $value = &Apache::lonmsgdisplay::retrieve_instructor_comments
1465: ($student->{'username'},$student->{'domain'});
1466: }
1467: $excel_sheet->write($rows_output,$cols_output++,$value);
1468: }
1469: #
1470: # Get student assessment data
1471: my %StudentsData;
1472: my @tmp = &Apache::loncoursedata::get_current_state($student->{'username'},
1473: $student->{'domain'},
1474: undef,
1475: $env{'request.course.id'});
1476: if ((scalar @tmp > 0) && ($tmp[0] !~ /^error:/)) {
1477: %StudentsData = @tmp;
1478: }
1479: #
1480: # Write out sequence scores and totals data
1481: my %total_cell_translation;
1482: my %maximum_cell_translation;
1483: foreach my $seq (@sequences) {
1484: my $symb = $seq->symb;
1485: $cols_output = $formula_data{$symb}->{'Excel:startcol'};
1486: # Keep track of cells to translate in total cell
1487: $total_cell_translation{$formula_data{$symb}->{'Excel:scorecell'}} =
1488: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1489: ($rows_output,$formula_data{$symb}->{'Excel:scorecol'});
1490: # and maximum cell
1491: $maximum_cell_translation{$formula_data{$symb}->{'Excel:maxcell'}} =
1492: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1493: ($rows_output,$formula_data{$symb}->{'Excel:maxcol'});
1494: #
1495: my ($performance,$performance_length,$score,$seq_max,$rawdata);
1496: if ($chosen_output->{'tries'} || $chosen_output->{'correct'}){
1497: ($performance,$performance_length,$score,$seq_max,$rawdata) =
1498: &student_tries_on_sequence($student,\%StudentsData,
1499: $navmap,$seq,'no');
1500: } else {
1501: ($performance,$performance_length,$score,$seq_max,$rawdata) =
1502: &student_performance_on_sequence($student,\%StudentsData,
1503: $navmap,$seq,'no',
1504: $chosen_output->{ignore_weight});
1505: }
1506: if ($chosen_output->{'every_problem'}) {
1507: if ($chosen_output->{'correct'}) {
1508: # only indiciate if each item is correct or not
1509: foreach my $value (@$rawdata) {
1510: # positive means correct, 0 or negative means
1511: # incorrect
1512: $value = $value > 0 ? 1 : 0;
1513: $excel_sheet->write($rows_output,$cols_output++,$value);
1514: }
1515: } else {
1516: foreach my $value (@$rawdata) {
1517: if ($score eq ' ' || !defined($value)) {
1518: $cols_output++;
1519: } else {
1520: $excel_sheet->write($rows_output,$cols_output++,
1521: $value);
1522: }
1523: }
1524: }
1525: }
1526: if ($chosen_output->{'sequence_sum'} &&
1527: $chosen_output->{'every_problem'}) {
1528: # Write a formula for the sum of this sequence
1529: my %replaceCells=
1530: ('^'.$formula_data{$symb}->{'Excel:startcell'}.':'.$formula_data{$symb}->{'Excel:endcell'}.'$'
1531: =>
1532: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell($rows_output,$formula_data{$symb}->{'Excel:startcol'}).':'.
1533: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell($rows_output,$formula_data{$symb}->{'Excel:endcol'})
1534: );
1535: # The undef is for the format
1536: $excel_sheet->repeat_formula($rows_output,$cols_output++,
1537: $formula_data{$symb}->{'Excel:sum'},undef,
1538: %replaceCells, %replaceCells);
1539: } elsif ($chosen_output->{'sequence_sum'}) {
1540: if ($score eq ' ') {
1541: $cols_output++;
1542: } else {
1543: $excel_sheet->write($rows_output,$cols_output++,$score);
1544: }
1545: }
1546: if ($chosen_output->{'sequence_max'}) {
1547: $excel_sheet->write($rows_output,$cols_output++,$seq_max);
1548: }
1549: }
1550: #
1551: if ($chosen_output->{'grand_total'}) {
1552: $excel_sheet->repeat_formula($rows_output,$cols_output++,
1553: $total_formula,undef,
1554: %total_cell_translation);
1555: }
1556: if ($chosen_output->{'grand_maximum'}) {
1557: $excel_sheet->repeat_formula($rows_output,$cols_output++,
1558: $maximum_formula,undef,
1559: %maximum_cell_translation);
1560: }
1561: #
1562: # Bookkeeping
1563: $rows_output++;
1564: $cols_output=0;
1565: #
1566: # Update the progress window
1567: &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,'last student');
1568: return;
1569: }
1570:
1571: sub excel_finish {
1572: my ($r) = @_;
1573: if ($request_aborted || ! defined($navmap) || ! defined($excel_sheet)) {
1574: &excel_cleanup();
1575: return;
1576: }
1577: #
1578: # Write the excel file
1579: $excel_workbook->close();
1580: #
1581: # Close the progress window
1582: &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
1583: #
1584: # Tell the user where to get their excel file
1585: $r->print('<br />'.
1586: '<a href="'.$filename.'">Your Excel spreadsheet.</a>'."\n");
1587: $r->rflush();
1588: &excel_cleanup();
1589: return;
1590: }
1591:
1592: }
1593: #######################################################
1594: #######################################################
1595:
1596: =pod
1597:
1598: =head2 CSV output routines
1599:
1600: =item &csv_initialize($r)
1601:
1602: =item &csv_outputstudent($r,$student)
1603:
1604: =item &csv_finish($r)
1605:
1606: =cut
1607:
1608: #######################################################
1609: #######################################################
1610: {
1611:
1612: my $outputfile;
1613: my $filename;
1614: my $request_aborted;
1615: my %prog_state; # progress window state
1616: my $navmap;
1617: my @sequences;
1618:
1619: sub csv_cleanup {
1620: undef($outputfile);
1621: undef($filename);
1622: undef($request_aborted);
1623: undef(%prog_state);
1624: #
1625: undef($navmap);
1626: undef(@sequences);
1627: }
1628:
1629: sub csv_initialize{
1630: my ($r) = @_;
1631:
1632: &csv_cleanup();
1633: ($navmap,@sequences) =
1634: &Apache::lonstatistics::selected_sequences_with_assessments();
1635: if (! ref($navmap)) {
1636: # Unable to get data, so bail out
1637: $r->print("<h3>".
1638: &mt('Unable to retrieve course information.').
1639: '</h3>');
1640: }
1641: #
1642: # Deal with unimplemented requests
1643: $request_aborted = undef;
1644: if ($chosen_output->{'base'} =~ /final table/) {
1645: $r->print(<<END);
1646: <h2>Unable to Complete Request</h2>
1647: <p>
1648: The <b>Summary Table (Scores)</b> option is not available for non-HTML output.
1649: </p>
1650: END
1651: $request_aborted = 1;
1652: }
1653: return if ($request_aborted);
1654: #
1655: # Initialize progress window
1656: my $studentcount = scalar(@Apache::lonstatistics::Students);
1657: %prog_state=&Apache::lonhtmlcommon::Create_PrgWin
1658: ($r,'CSV File Compilation Status',
1659: 'CSV File Compilation Progress', $studentcount,
1660: 'inline',undef,'Statistics','stats_status');
1661: #
1662: # Open a file
1663: ($outputfile,$filename) = &Apache::loncommon::create_text_file($r,'csv');
1664: if (! defined($outputfile)) { return ''; }
1665: #
1666: # Datestamp
1667: my $description = $env{'course.'.$env{'request.course.id'}.'.description'};
1668: print $outputfile '"'.&Apache::loncommon::csv_translate($description).'",'.
1669: '"'.&Apache::loncommon::csv_translate(scalar(localtime(time))).'"'.
1670: "\n";
1671: print $outputfile '"'.
1672: &Apache::loncommon::csv_translate
1673: (&Apache::lonstatistics::section_and_enrollment_description()).
1674: '"'."\n";
1675: foreach my $item ('shortdesc','non_html_notes') {
1676: next if (! exists($chosen_output->{$item}));
1677: print $outputfile
1678: '"'.&Apache::loncommon::csv_translate($chosen_output->{$item}).'"'.
1679: "\n";
1680: }
1681: #
1682: # Print out the headings
1683: my $sequence_row = '';
1684: my $resource_row = undef;
1685: foreach my $field (&get_student_fields_to_show()) {
1686: $sequence_row .='"",';
1687: $resource_row .= '"'.&Apache::loncommon::csv_translate($field).'",';
1688: }
1689: foreach my $seq (@sequences) {
1690: $sequence_row .= '"'.
1691: &Apache::loncommon::csv_translate($seq->compTitle).'",';
1692: my $count = 0;
1693: if ($chosen_output->{'every_problem'}) {
1694: foreach my $res (&get_resources($navmap,$seq)) {
1695: if (scalar(@{$res->parts}) < 1) {
1696: next;
1697: }
1698: foreach my $part (@{$res->parts}) {
1699: $resource_row .= '"'.
1700: &Apache::loncommon::csv_translate
1701: ($res->compTitle.', Part '.$res->part_display($part)).'",';
1702: $count++;
1703: }
1704: }
1705: }
1706: $sequence_row.='"",'x$count;
1707: if ($chosen_output->{'sequence_sum'}) {
1708: if($chosen_output->{'correct'}) {
1709: $resource_row .= '"sum",';
1710: } else {
1711: $resource_row .= '"score",';
1712: }
1713: }
1714: if ($chosen_output->{'sequence_max'}) {
1715: $sequence_row.= '"",';
1716: $resource_row .= '"maximum possible",';
1717: }
1718: }
1719: if ($chosen_output->{'grand_total'}) {
1720: $sequence_row.= '"",';
1721: $resource_row.= '"Total",';
1722: }
1723: if ($chosen_output->{'grand_maximum'}) {
1724: $sequence_row.= '"",';
1725: $resource_row.= '"Maximum",';
1726: }
1727: chomp($sequence_row);
1728: chomp($resource_row);
1729: print $outputfile $sequence_row."\n";
1730: print $outputfile $resource_row."\n";
1731: return;
1732: }
1733:
1734: sub csv_outputstudent {
1735: my ($r,$student) = @_;
1736: if ($request_aborted || ! defined($navmap) || ! defined($outputfile)) {
1737: return;
1738: }
1739: my $Str = '';
1740: #
1741: # Output student fields
1742: my @to_show = &get_student_fields_to_show();
1743: foreach my $field (@to_show) {
1744: my $value = $student->{$field};
1745: if ($field eq 'comments') {
1746: $value = &Apache::lonmsgdisplay::retrieve_instructor_comments
1747: ($student->{'username'},$student->{'domain'});
1748: }
1749: $Str .= '"'.&Apache::loncommon::csv_translate($value).'",';
1750: }
1751: #
1752: # Get student assessment data
1753: my %StudentsData;
1754: my @tmp = &Apache::loncoursedata::get_current_state($student->{'username'},
1755: $student->{'domain'},
1756: undef,
1757: $env{'request.course.id'});
1758: if ((scalar @tmp > 0) && ($tmp[0] !~ /^error:/)) {
1759: %StudentsData = @tmp;
1760: }
1761: #
1762: # Output performance data
1763: my $total = 0;
1764: my $maximum = 0;
1765: foreach my $seq (@sequences) {
1766: my ($performance,$performance_length,$score,$seq_max,$rawdata);
1767: if ($chosen_output->{'tries'}){
1768: ($performance,$performance_length,$score,$seq_max,$rawdata) =
1769: &student_tries_on_sequence($student,\%StudentsData,
1770: $navmap,$seq,'no');
1771: } else {
1772: ($performance,$performance_length,$score,$seq_max,$rawdata) =
1773: &student_performance_on_sequence($student,\%StudentsData,
1774: $navmap,$seq,'no',
1775: $chosen_output->{ignore_weight});
1776: }
1777: if ($chosen_output->{'every_problem'}) {
1778: if ($chosen_output->{'correct'}) {
1779: $score = 0;
1780: # Deal with number of parts correct data
1781: $Str .= '"'.join('","',( map { if ($_>0) {
1782: $score += 1;
1783: 1;
1784: } else {
1785: 0;
1786: }
1787: } @$rawdata)).'",';
1788: } else {
1789: $Str .= '"'.join('","',(@$rawdata)).'",';
1790: }
1791: }
1792: if ($chosen_output->{'sequence_sum'}) {
1793: $Str .= '"'.$score.'",';
1794: }
1795: if ($chosen_output->{'sequence_max'}) {
1796: $Str .= '"'.$seq_max.'",';
1797: }
1798: $total+=$score;
1799: $maximum += $seq_max;
1800: }
1801: if ($chosen_output->{'grand_total'}) {
1802: $Str .= '"'.$total.'",';
1803: }
1804: if ($chosen_output->{'grand_maximum'}) {
1805: $Str .= '"'.$maximum.'",';
1806: }
1807: chop($Str);
1808: $Str .= "\n";
1809: print $outputfile $Str;
1810: #
1811: # Update the progress window
1812: &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,'last student');
1813: return;
1814: }
1815:
1816: sub csv_finish {
1817: my ($r) = @_;
1818: if ($request_aborted || ! defined($navmap) || ! defined($outputfile)) {
1819: &csv_cleanup();
1820: return;
1821: }
1822: close($outputfile);
1823: #
1824: # Close the progress window
1825: &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
1826: #
1827: # Tell the user where to get their csv file
1828: $r->print('<br />'.
1829: '<a href="'.$filename.'">'.&mt('Your CSV file.').'</a>'."\n");
1830: $r->rflush();
1831: &csv_cleanup();
1832: return;
1833:
1834: }
1835:
1836: }
1837:
1838: # This function will return an HTML string including a star, with
1839: # a mouseover popup showing the "real" value. An optional second
1840: # argument lets you show something other than a star.
1841: sub show_star {
1842: my $popup = shift;
1843: my $symbol = shift || '*';
1844: # Escape the popup for JS.
1845: $popup =~ s/([^-a-zA-Z0-9:;,._ ()|!\/?=&*])/'\\' . sprintf("%lo", ord($1))/ge;
1846:
1847: return "<span class=\"LC_chrt_popup_exists\" onmouseover='popup_score(this, \"$popup\");return false;' onmouseout='popdown_score();return false;'>$symbol</span>";
1848: }
1849:
1850: #######################################################
1851: #######################################################
1852:
1853: =pod
1854:
1855: =item &StudentTriesOnSequence()
1856:
1857: Inputs:
1858:
1859: =over 4
1860:
1861: =item $student
1862:
1863: =item $studentdata Hash ref to all student data
1864:
1865: =item $seq Hash ref, the sequence we are working on
1866:
1867: =item $links if defined we will output links to each resource.
1868:
1869: =back
1870:
1871: =cut
1872:
1873: #######################################################
1874: #######################################################
1875: sub student_tries_on_sequence {
1876: my ($student,$studentdata,$navmap,$seq,$links) = @_;
1877: $links = 'no' if (! defined($links));
1878: my $Str = '';
1879: my ($sum,$max) = (0,0);
1880: my $performance_length = 0;
1881: my @TriesData = ();
1882: my $tries;
1883: my $hasdata = 0; # flag - true if the student has any data on the sequence
1884: foreach my $resource (&get_resources($navmap,$seq)) {
1885: my $resource_data = $studentdata->{$resource->symb};
1886: my $value = '';
1887: foreach my $partnum (@{$resource->parts()}) {
1888: $tries = undef;
1889: $max++;
1890: $performance_length++;
1891: my $symbol = ' '; # default to space
1892: #
1893: my $awarded = 0;
1894: if (exists($resource_data->{'resource.'.$partnum.'.awarded'})) {
1895: $awarded = $resource_data->{'resource.'.$partnum.'.awarded'};
1896: $awarded = 0 if (! $awarded);
1897: }
1898: #
1899: my $status = '';
1900: if (exists($resource_data->{'resource.'.$partnum.'.solved'})) {
1901: $status = $resource_data->{'resource.'.$partnum.'.solved'};
1902: }
1903: #
1904: my $tries = 0;
1905: if(exists($resource_data->{'resource.'.$partnum.'.tries'})) {
1906: $tries = $resource_data->{'resource.'.$partnum.'.tries'};
1907: $hasdata =1;
1908: }
1909: #
1910: if ($awarded > 0) {
1911: # The student has gotten the problem correct to some degree
1912: if ($status eq 'excused') {
1913: $symbol = 'x';
1914: $max--;
1915: } elsif ($status eq 'correct_by_override' && !$resource->is_task()) {
1916: $symbol = '+';
1917: $sum++;
1918: } elsif ($tries > 0) {
1919: if ($tries > 9) {
1920: $symbol = show_star($tries);
1921: } else {
1922: $symbol = $tries;
1923: }
1924: $sum++;
1925: } else {
1926: $symbol = '+';
1927: $sum++;
1928: }
1929: } else {
1930: # The student has the problem incorrect or it is ungraded
1931: if ($status eq 'excused') {
1932: $symbol = 'x';
1933: $max--;
1934: } elsif ($status eq 'incorrect_by_override') {
1935: $symbol = '-';
1936: } elsif ($status eq 'ungraded_attempted') {
1937: $symbol = 'u';
1938: } elsif ($status eq 'incorrect_attempted' ||
1939: $tries > 0) {
1940: $symbol = '.';
1941: } else {
1942: # Problem is wrong and has not been attempted.
1943: $symbol=' ';
1944: }
1945: }
1946: #
1947: if (! defined($tries)) {
1948: $tries = 0;
1949: }
1950: if ($status =~ /^(incorrect|ungraded)/) {
1951: # Bug 3390: show '-' for tries on incorrect problems
1952: # (csv & excel only)
1953: push(@TriesData,-$tries);
1954: } else {
1955: push (@TriesData,$tries);
1956: }
1957: #
1958: if ( ($links eq 'yes' && $symbol ne ' ') ||
1959: ($links eq 'all')) {
1960: my $link = '/adm/grades'.
1961: '?symb='.&escape($resource->shown_symb).
1962: '&student='.$student->{'username'}.
1963: '&userdom='.$student->{'domain'}.
1964: '&command=submission';
1965: $symbol = &link($symbol, $link);
1966: }
1967: $value .= $symbol;
1968: }
1969: $Str .= $value;
1970: }
1971: if ($seq->randompick()) {
1972: $max = $seq->randompick();
1973: }
1974: if (! $hasdata && $sum == 0) {
1975: $sum = ' ';
1976: }
1977: return ($Str,$performance_length,$sum,$max,\@TriesData);
1978: }
1979:
1980: =pod
1981:
1982: =item &link
1983:
1984: Inputs:
1985:
1986: =over 4
1987:
1988: =item $text
1989:
1990: =item $target
1991:
1992: =back
1993:
1994: Takes the text and creates a link to the $text that honors
1995: the value of 'new window' if clicked on, but uses a real
1996: 'href' so middle and right clicks still work.
1997:
1998: $target and $text are assumed to be already correctly escaped; i.e., it
1999: can be dumped out directly into the output stream as-is.
2000:
2001: =cut
2002:
2003: sub link {
2004: my ($text,$target) = @_;
2005: return
2006: "<a href='$target' onclick=\"t=this.href;if(new_window)"
2007: ."{window.open(t)}else{return void(window."
2008: ."location=t)};return false;\">$text</a>";
2009: }
2010:
2011: #######################################################
2012: #######################################################
2013:
2014: =pod
2015:
2016: =item &student_performance_on_sequence
2017:
2018: Inputs:
2019:
2020: =over 4
2021:
2022: =item $student
2023:
2024: =item $studentdata Hash ref to all student data
2025:
2026: =item $seq Hash ref, the sequence we are working on
2027:
2028: =item $links if defined we will output links to each resource.
2029:
2030: =back
2031:
2032: =cut
2033:
2034: #######################################################
2035: #######################################################
2036: sub student_performance_on_sequence {
2037: my ($student,$studentdata,$navmap,$seq,$links,$awarded_only) = @_;
2038: $links = 'no' if (! defined($links));
2039: my $Str = ''; # final result string
2040: my ($score,$max) = (0,0);
2041: my $performance_length = 0;
2042: my $symbol;
2043: my @ScoreData = ();
2044: my $partscore;
2045: my $hasdata = 0; # flag, 0 if there were no submissions on the sequence
2046: foreach my $resource (&get_resources($navmap,$seq)) {
2047: my $symb = $resource->symb;
2048: my $resource_data = $studentdata->{$symb};
2049: foreach my $part (@{$resource->parts()}) {
2050: $partscore = undef;
2051: my $weight;
2052: if (!$awarded_only){
2053: $weight = &Apache::lonnet::EXT('resource.'.$part.'.weight',
2054: $symb,
2055: $student->{'domain'},
2056: $student->{'username'},
2057: $student->{'section'});
2058: }
2059: if (!defined($weight) || ($weight eq '')) {
2060: $weight=1;
2061: }
2062: #
2063: $max += $weight; # see the 'excused' branch below...
2064: $performance_length++; # one character per part
2065: $symbol = ' '; # default to space
2066: #
2067: my $awarded;
2068: if (exists($resource_data->{'resource.'.$part.'.awarded'})) {
2069: $awarded = $resource_data->{'resource.'.$part.'.awarded'};
2070: $awarded = 0 if (! $awarded);
2071: $hasdata = 1;
2072: }
2073: #
2074: $partscore = &Apache::grades::compute_points($weight,$awarded);
2075: if (! defined($awarded)) {
2076: $partscore = undef;
2077: }
2078: $score += $partscore;
2079: $symbol = $partscore;
2080: if (abs($symbol - sprintf("%.0f",$symbol)) < 0.001) {
2081: $symbol = sprintf("%.0f",$symbol);
2082: }
2083: if (length($symbol) > 1) {
2084: $symbol = show_star($symbol);
2085: }
2086: if (exists($resource_data->{'resource.'.$part.'.solved'}) &&
2087: $resource_data->{'resource.'.$part.'.solved'} ne '') {
2088: my $status = $resource_data->{'resource.'.$part.'.solved'};
2089: if ($status eq 'excused') {
2090: $symbol = 'x';
2091: $max -= $weight; # Do not count 'excused' problems.
2092: } elsif ($status eq 'ungraded_attempted') {
2093: $symbol = 'u';
2094: }
2095: $hasdata = 1;
2096: } elsif ($resource_data->{'resource.'.$part.'.award'} eq 'DRAFT') {
2097: $symbol = 'd';
2098: $hasdata = 1;
2099: } elsif (!exists($resource_data->{'resource.'.$part.'.awarded'})){
2100: # Unsolved. Did they try?
2101: if (exists($resource_data->{'resource.'.$part.'.tries'})){
2102: $symbol = '.';
2103: $hasdata = 1;
2104: } else {
2105: $symbol = ' ';
2106: }
2107: }
2108: #
2109: if (! defined($partscore)) {
2110: $partscore = $symbol;
2111: }
2112: push (@ScoreData,$partscore);
2113: #
2114: if ( ($links eq 'yes' && $symbol ne ' ') || ($links eq 'all')) {
2115: my $link = '/adm/grades' .
2116: '?symb='.&escape($resource->shown_symb).
2117: '&student='.$student->{'username'}.
2118: '&userdom='.$student->{'domain'}.
2119: '&command=submission';
2120: $symbol = &link($symbol, $link);
2121: }
2122: $Str .= $symbol;
2123: }
2124: }
2125: if (! $hasdata && $score == 0) {
2126: $score = ' ';
2127: }
2128: return ($Str,$performance_length,$score,$max,\@ScoreData);
2129: }
2130:
2131: #######################################################
2132: #######################################################
2133:
2134: =pod
2135:
2136: =item &CreateLegend()
2137:
2138: This function returns a formatted string containing the legend for the
2139: chart. The legend describes the symbols used to represent grades for
2140: problems.
2141:
2142: =cut
2143:
2144: #######################################################
2145: #######################################################
2146: sub CreateLegend {
2147: my $Str = "<p><pre>".
2148: " digit score or number of tries to get correct ".
2149: " * correct by student in more than 9 tries\n".
2150: " + correct by hand grading or override\n".
2151: " - incorrect by override\n".
2152: " . incorrect attempted\n".
2153: " u ungraded attempted\n".
2154: " d draft answer saved but not submitted\n".
2155: " not attempted (blank field)\n".
2156: " x excused".
2157: "</pre><p>";
2158: return $Str;
2159: }
2160:
2161: #######################################################
2162: #######################################################
2163:
2164: =pod
2165:
2166: =back
2167:
2168: =cut
2169:
2170: #######################################################
2171: #######################################################
2172:
2173: 1;
2174:
2175: __END__
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