1: # The LearningOnline Network with CAPA
2: #
3: # $Id: lonstudentassessment.pm,v 1.159 2010/01/14 17:20:51 bisitz 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: &mt('Previous Student ([_1])',
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: &mt('Previous Student').'" disabled="disabled" />';
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: &mt('Next Student ([_1])',
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: &mt('Next Student').'" disabled="disabled" />';
275: }
276: #
277: # Build the 'all students' button
278: my $all = '';
279: $all .= '<input type="button" value="'.&mt('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 .= '<p>'
365: .&mt('Status:').' '
366: .'<input type="text" name="stats_status" size="60" value="" readonly="readonly" />'
367: .'</p>';
368: $Str .= '<input type="submit" name="selectstudent" value="'.
369: &mt('Select One Student').'" />';
370: $Str .= ' 'x5;
371: $Str .= '<input type="submit" name="ClearCache" value="'.
372: &mt('Clear Caches').'" />';
373: $Str .= '<p>'
374: .'<input type="submit" name="Generate Chart"'
375: .' value="'.&mt('Generate Chart').'" />'
376: .'</p>';
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>'.&mt('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: $r->print('<p class="LC_error">'
667: .&mt('Unable to retrieve course information.')
668: .'</p>');
669: }
670:
671: # If we're showing links, show a checkbox to open in new
672: # windows.
673: if ($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>
678: <input type="checkbox" checked="checked" onclick="new_window=this.checked" />
679: $labeltext
680: </label></p>
681: NEW_WINDOW_CHECKBOX
682: }
683:
684: #
685: $r->print("<h3>".$env{'course.'.$env{'request.course.id'}.'.description'}.
686: " ".&Apache::lonlocal::locallocaltime(time)."</h3>");
687: #
688: if ($chosen_output->{'base'} !~ /^final table/) {
689: $r->print("<h3>".&mt($chosen_output->{'shortdesc'})."</h3>");
690: }
691: my $Str = "<pre>\n";
692: # First, the @StudentData fields need to be listed
693: my @to_show = &get_student_fields_to_show();
694: foreach my $field (@to_show) {
695: my $title=$Apache::lonstatistics::StudentData{$field}->{'title'};
696: my $base =$Apache::lonstatistics::StudentData{$field}->{'base_width'};
697: my $width=$Apache::lonstatistics::StudentData{$field}->{'width'};
698: $Str .= $title.' 'x($width-$base).$padding;
699: }
700: #
701: # Compute the column widths and output the sequence titles
702: my $total_count;
703: #
704: # Compute sequence widths
705: my $starttime = Time::HiRes::time;
706: foreach my $seq (@sequences) {
707: my $symb = $seq->symb;
708: my $title = $seq->compTitle;
709: $width{$symb}->{'width_sum'} = 0;
710: # Compute width of sum
711: if ($chosen_output->{'sequence_sum'}) {
712: if ($chosen_output->{'every_problem'}) {
713: # Use 1 digit for a space
714: $width{$symb}->{'width_sum'} += 1;
715: }
716: $total_count += &count_parts($navmap,$seq);
717: # Use 6 digits for the sum
718: $width{$symb}->{'width_sum'} += 6;
719: }
720: # Compute width of maximum
721: if ($chosen_output->{'sequence_max'}) {
722: if ($width{$symb}->{'width_sum'}>0) {
723: # One digit for the '/'
724: $width{$symb}->{'width_sum'} +=1;
725: }
726: # Use 6 digits for the total
727: $width{$symb}->{'width_sum'}+=6;
728: }
729: #
730: if ($chosen_output->{'every_problem'}) {
731: # one problem per digit
732: $width{$symb}->{'width_parts'}= &count_parts($navmap,$seq);
733: $width{$symb}->{'width_problem'} += $width{$symb}->{'width_parts'};
734: } else {
735: $width{$symb}->{'width_problem'} = 0;
736: }
737: $width{$symb}->{'width_total'} = $width{$symb}->{'width_problem'} +
738: $width{$symb}->{'width_sum'};
739: if ($width{$symb}->{'width_total'} < length(&HTML::Entities::decode($title))) {
740: $width{$symb}->{'width_total'} = length(&HTML::Entities::decode($title));
741: }
742: #
743: # Output the sequence titles
744: $Str .= $title.(' 'x($width{$symb}->{'width_total'}-
745: length($title)
746: )).$padding;
747: }
748: $total_sum_width = length($total_count)+1;
749: $Str .= " total</pre>\n";
750: $Str .= "<pre>";
751: $r->print($Str);
752: $r->rflush();
753:
754: $r->print(<<JS);
755: <script type="text/javascript">
756: // get the left offset of a given widget as an absolute position
757: function getLeftOffset (element) {
758: return collect(element, "offsetLeft");
759: }
760:
761: // get the top offset of a given widget as an absolute position
762: function getTopOffset (element) {
763: return collect(element, "offsetTop");
764: }
765:
766: function collect(element, att) {
767: var val = 0;
768: while(element) {
769: val += element[att];
770: element = element.offsetParent;
771: }
772: return val;
773: }
774:
775: var currentDiv;
776: var currentElement;
777: function popup_score(element, score) {
778: popdown_score();
779: var left = getLeftOffset(element);
780: var top = getTopOffset(element);
781: var div = document.createElement("div");
782: div.className = "LC_chrt_popup";
783: div.appendChild(document.createTextNode(score));
784: div.style.position = "absolute";
785: div.style.top = (top - 25) + "px";
786: div.style.left = (left - 10) + "px";
787: currentDiv = div;
788: document.body.insertBefore(div, document.body.childNodes[0]);
789: element.className = "LC_chrt_popup_up";
790: currentElement = element;
791: }
792:
793: function popdown_score() {
794: if (currentDiv) {
795: document.body.removeChild(currentDiv);
796: }
797: if (currentElement) {
798: currentElement.className = 'LC_chrt_popup_exists';
799: }
800: currentDiv = undefined;
801: }
802: </script>
803: JS
804:
805: #
806: # Let the user know what we are doing
807: my $studentcount = scalar(@Apache::lonstatistics::Students);
808: if ($env{'form.SelectedStudent'}) {
809: $studentcount = '1';
810: }
811: #
812: # Initialize progress window
813: %prog_state=&Apache::lonhtmlcommon::Create_PrgWin
814: ($r,'HTML Chart Status',
815: 'HTML Chart Progress', $studentcount,
816: 'inline',undef,'Statistics','stats_status');
817: #
818: &Apache::lonhtmlcommon::Update_PrgWin($r,\%prog_state,
819: 'Processing first student');
820: return;
821: }
822:
823: sub html_outputstudent {
824: my ($r,$student) = @_;
825: my $Str = '';
826: return if (! defined($navmap));
827: #
828: if($count++ % 5 == 0 && $count > 0) {
829: # $r->print("</pre><pre>");
830: $r->print('</pre>');
831: &Apache::lonhtmlcommon::Increment_PrgWin(
832: $r,\%prog_state,'last five students');
833: $r->rflush();
834: $r->print('<pre>');
835: }
836: # First, the @StudentData fields need to be listed
837: my @to_show = &get_student_fields_to_show();
838: foreach my $field (@to_show) {
839: my $title=$student->{$field};
840: # Deal with 'comments' - how I love special cases
841: if ($field eq 'comments') {
842: $title = '<a href="/adm/'.$student->{'domain'}.'/'.$student->{'username'}.'/'.'aboutme#coursecomment">'.&mt('Comments').'</a>';
843: }
844: my $base = length($title);
845: my $width=$Apache::lonstatistics::StudentData{$field}->{'width'};
846: $Str .= $title.' 'x($width-$base).$padding;
847: }
848: # Get ALL the students data
849: my %StudentsData;
850: my @tmp = &Apache::loncoursedata::get_current_state
851: ($student->{'username'},$student->{'domain'},undef,
852: $env{'request.course.id'});
853: if ((scalar @tmp > 0) && ($tmp[0] !~ /^error:(.*)/)) {
854: %StudentsData = @tmp;
855: } else {
856: my $error = $1;
857: if (scalar(@tmp) < 1) {
858: $Str .= '<span class="LC_warning">'
859: .&mt('No Course Data')
860: .'</span>'."\n";
861: } else {
862: $Str .= '<span class="LC_error">'
863: .&mt('Error getting student data ([_1])',$error)
864: .'</span>'."\n";
865: }
866: $nodata_count++;
867: $r->print($Str);
868: $r->rflush();
869: return;
870: }
871: #
872: # By sequence build up the data
873: my $studentstats;
874: my $PerformanceStr = '';
875: foreach my $seq (@sequences) {
876: my $symb = $seq->symb;
877: my ($performance,$performance_length,$score,$seq_max,$rawdata);
878: if ($chosen_output->{'tries'}) {
879: ($performance,$performance_length,$score,$seq_max,$rawdata) =
880: &student_tries_on_sequence($student,\%StudentsData,
881: $navmap,$seq,$show_links);
882: } else {
883: ($performance,$performance_length,$score,$seq_max,$rawdata) =
884: &student_performance_on_sequence($student,\%StudentsData,
885: $navmap,$seq,$show_links,
886: $chosen_output->{ignore_weight});
887: }
888: my $ratio='';
889: if ($chosen_output->{'every_problem'} &&
890: $chosen_output->{'sequence_sum'}) {
891: $ratio .= ' ';
892: }
893: if ($chosen_output->{'sequence_sum'} && $score ne ' ') {
894: my $score .= sprintf("%3.2f",$score);
895: $ratio .= (' 'x(6-length($score))).$score;
896: } elsif($chosen_output->{'sequence_sum'}) {
897: $ratio .= ' 'x6;
898: }
899: if ($chosen_output->{'sequence_max'}) {
900: if ($chosen_output->{'sequence_sum'}) {
901: $ratio .= '/';
902: }
903: my $sequence_total=sprintf("%3.2f",$seq_max);
904: $ratio .= $sequence_total.(' 'x(6-length($sequence_total)));
905: }
906: #
907: if (! $chosen_output->{'every_problem'}) {
908: $performance = '';
909: $performance_length=0;
910: }
911: $performance .= ' 'x($width{$symb}->{'width_total'} -
912: $performance_length -
913: $width{$symb}->{'width_sum'}).
914: $ratio;
915: #
916: $Str .= $performance.$padding;
917: #
918: $studentstats->{$symb}->{'score'}= $score;
919: $studentstats->{$symb}->{'max'} = $seq_max;
920: }
921: #
922: # Total it up and store the statistics info.
923: my ($score,$max);
924: while (my ($symb,$seq_stats) = each (%{$studentstats})) {
925: $Statistics->{$symb}->{'score'} += $seq_stats->{'score'};
926: if ($Statistics->{$symb}->{'max'} < $seq_stats->{'max'}) {
927: $Statistics->{$symb}->{'max'} = $seq_stats->{'max'};
928: }
929: if ($seq_stats->{'score'} ne ' ') {
930: $score += $seq_stats->{'score'};
931: $Statistics->{$symb}->{'num_students'}++;
932: }
933: $max += $seq_stats->{'max'};
934: }
935: if (! defined($score)) {
936: $score = ' ' x $total_sum_width;
937: } else {
938: $score = sprintf("%.2f",$score);
939: $score = (' 'x(6-length($score))).$score;
940: }
941: $Str .= ' '.' 'x($total_sum_width-length($score)).$score.' / '.$max;
942: $Str .= " \n";
943: #
944: $r->print($Str);
945: #
946: # $r->rflush();
947: # &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,'last student');
948: return;
949: }
950:
951: sub html_finish {
952: my ($r) = @_;
953: return if (! defined($navmap));
954: #
955: # Check for suppressed output and close the progress window if so
956: $r->print("</pre>\n");
957: if ($chosen_output->{'summary_table'}) {
958: if ($single_student_mode) {
959: $r->print(&SingleStudentTotal());
960: } else {
961: $r->print(&StudentAverageTotal());
962: }
963: }
964: $r->rflush();
965: &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
966: &html_cleanup();
967: return;
968: }
969:
970: sub StudentAverageTotal {
971: my $Str = '<h3>'.&mt('Summary Tables').'</h3>'.$/;
972: $Str .= &Apache::loncommon::start_data_table();
973: $Str .= &Apache::loncommon::start_data_table_header_row().
974: '<th>'.&mt('Title').'</th>'.
975: '<th>'.&mt('Average').'</th>'.
976: '<th>'.&mt('Maximum').'</th>'.
977: &Apache::loncommon::end_data_table_header_row().$/;
978: foreach my $seq (@sequences) {
979: my $symb = $seq->symb;
980: my $ave;
981: my $num_students = $Statistics->{$symb}->{'num_students'};
982: if ($num_students > 0) {
983: $ave = int(100*
984: ($Statistics->{$symb}->{'score'}/$num_students)
985: )/100;
986: } else {
987: $ave = 0;
988: }
989: my $max = $Statistics->{$symb}->{'max'};
990: $ave = sprintf("%.2f",$ave);
991: $Str .= &Apache::loncommon::start_data_table_row().
992: '<td>'.$seq->compTitle.'</td>'.
993: '<td align="right">'.$ave.' </td>'.
994: '<td align="right">'.$max.' '.'</td>'.
995: &Apache::loncommon::end_data_table_row()."\n";
996: }
997: $Str .= &Apache::loncommon::end_data_table()."\n";
998: return $Str;
999: }
1000:
1001: sub SingleStudentTotal {
1002: return if (! defined($navmap));
1003: my $student = &Apache::lonstatistics::current_student();
1004: my $Str = '<h3>'.&mt('Summary table for [_1] ([_2])',
1005: $student->{'fullname'},
1006: $student->{'username'}.':'.$student->{'domain'}).'</h3>';
1007: $Str .= $/;
1008: $Str .= &Apache::loncommon::start_data_table()."\n";
1009: $Str .=
1010: &Apache::loncommon::start_data_table_header_row().
1011: '<th>'.&mt('Sequence or Folder').'</th>';
1012: if ($chosen_output->{'base'} eq 'tries') {
1013: $Str .= '<th>'.&mt('Parts Correct').'</th>';
1014: } else {
1015: $Str .= '<th>'.&mt('Score').'</th>';
1016: }
1017: $Str .= '<th>'.&mt('Maximum').'</th>'.
1018: &Apache::loncommon::end_data_table_header_row()."\n";
1019: my $total = 0;
1020: my $total_max = 0;
1021: foreach my $seq (@sequences) {
1022: my $value = $Statistics->{$seq->symb}->{'score'};
1023: my $max = $Statistics->{$seq->symb}->{'max'};
1024: $Str .= &Apache::loncommon::start_data_table_row().
1025: '<td>'.&HTML::Entities::encode($seq->compTitle).'</td>'.
1026: '<td align="right">'.$value.'</td>'.
1027: '<td align="right">'.$max.'</td>'.
1028: &Apache::loncommon::end_data_table_row()."\n";
1029: $total += $value;
1030: $total_max +=$max;
1031: }
1032: $Str .= &Apache::loncommon::start_data_table_row().
1033: '<td><b>'.&mt('Total').'</b></td>'.
1034: '<td align="right">'.$total.'</td>'.
1035: '<td align="right">'.$total_max.'</td>'.
1036: &Apache::loncommon::end_data_table_row()."\n";
1037: $Str .= &Apache::loncommon::end_data_table()."\n";
1038: return $Str;
1039: }
1040:
1041: }
1042:
1043: #######################################################
1044: #######################################################
1045:
1046: =pod
1047:
1048: =head2 EXCEL subroutines
1049:
1050: =item &excel_initialize($r)
1051:
1052: =item &excel_outputstudent($r,$student)
1053:
1054: =item &excel_finish($r)
1055:
1056: =cut
1057:
1058: #######################################################
1059: #######################################################
1060: {
1061:
1062: my $excel_sheet;
1063: my $excel_workbook;
1064: my $format;
1065:
1066: my $filename;
1067: my $rows_output;
1068: my $cols_output;
1069:
1070: my %prog_state; # progress window state
1071: my $request_aborted;
1072:
1073: my $total_formula;
1074: my $maximum_formula;
1075: my %formula_data;
1076:
1077: my $navmap;
1078: my @sequences;
1079:
1080: sub excel_cleanup {
1081: #
1082: undef ($excel_sheet);
1083: undef ($excel_workbook);
1084: undef ($filename);
1085: undef ($rows_output);
1086: undef ($cols_output);
1087: undef (%prog_state);
1088: undef ($request_aborted);
1089: undef ($total_formula);
1090: undef ($maximum_formula);
1091: #
1092: undef(%formula_data);
1093: #
1094: undef($navmap);
1095: undef(@sequences);
1096: }
1097:
1098: sub excel_initialize {
1099: my ($r) = @_;
1100:
1101: &excel_cleanup();
1102: ($navmap,@sequences) =
1103: &Apache::lonstatistics::selected_sequences_with_assessments();
1104: if (! ref($navmap)) {
1105: # Unable to get data, so bail out
1106: $r->print("<h3>".
1107: &mt('Unable to retrieve course information.').
1108: '</h3>');
1109: }
1110: #
1111: my $total_columns = scalar(&get_student_fields_to_show());
1112: my $num_students = scalar(@Apache::lonstatistics::Students);
1113: #
1114: foreach my $seq (@sequences) {
1115: if ($chosen_output->{'every_problem'}) {
1116: $total_columns+=&count_parts($navmap,$seq);
1117: }
1118: # Add 2 because we need a 'sequence_sum' and 'total' column for each
1119: $total_columns += 2;
1120: }
1121: my $too_many_cols_error_message =
1122: '<h2>'.&mt('Unable to Complete Request').'</h2>'.$/.
1123: '<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>'.$/.
1124: '<p>'.&mt('You may consider reducing the number of <b>Sequences or Folders</b> you have selected.').'</p>'.$/.
1125: '<p>'.&mt('LON-CAPA can produce <b>CSV</b> files of this data or Excel files of the <b>Scores Summary</b> data.').'</p>'.$/;
1126: if ($chosen_output->{'base'} eq 'tries' && $total_columns > 255) {
1127: $r->print($too_many_cols_error_message);
1128: $request_aborted = 1;
1129: }
1130: if ($chosen_output->{'base'} eq 'scores' && $total_columns > 255) {
1131: $r->print($too_many_cols_error_message);
1132: $request_aborted = 1;
1133: }
1134: return if ($request_aborted);
1135: #
1136: #
1137: $excel_workbook = undef;
1138: $excel_sheet = undef;
1139: #
1140: $rows_output = 0;
1141: $cols_output = 0;
1142: #
1143: # Determine rows
1144: my $header_row = $rows_output++;
1145: my $description_row = $rows_output++;
1146: my $notes_row = $rows_output++;
1147: $rows_output++; # blank row
1148: my $summary_header_row;
1149: if ($chosen_output->{'summary_table'}) {
1150: $summary_header_row = $rows_output++;
1151: $rows_output+= scalar(@sequences);
1152: $rows_output++;
1153: }
1154: my $sequence_name_row = $rows_output++;
1155: my $resource_name_row = $rows_output++;
1156: my $maximum_data_row = $rows_output++;
1157: if (! $chosen_output->{'maximum_row'}) {
1158: $rows_output--;
1159: }
1160: my $first_data_row = $rows_output++;
1161: #
1162: # Create sheet
1163: ($excel_workbook,$filename,$format)=
1164: &Apache::loncommon::create_workbook($r);
1165: return if (! defined($excel_workbook));
1166: #
1167: # Add a worksheet
1168: my $sheetname = $env{'course.'.$env{'request.course.id'}.'.description'};
1169: $sheetname = &Apache::loncommon::clean_excel_name($sheetname);
1170: $excel_sheet = $excel_workbook->addworksheet($sheetname);
1171: #
1172: # Put the course description in the header
1173: $excel_sheet->write($header_row,$cols_output++,
1174: $env{'course.'.$env{'request.course.id'}.'.description'},
1175: $format->{'h1'});
1176: $cols_output += 3;
1177: #
1178: # Put a description of the sections listed
1179: my $sectionstring = '';
1180: my @Sections = &Apache::lonstatistics::get_selected_sections();
1181: $excel_sheet->write($header_row,$cols_output++,
1182: &Apache::lonstatistics::section_and_enrollment_description('plaintext'),
1183: $format->{'h3'});
1184: #
1185: # Put the date in there too
1186: $excel_sheet->write($header_row,$cols_output++,
1187: &mt('Compiled on [_1]',&Apache::lonlocal::locallocaltime(time)),$format->{'h3'});
1188: #
1189: $cols_output = 0;
1190: $excel_sheet->write($description_row,$cols_output++,
1191: &mt($chosen_output->{'shortdesc'}),
1192: $format->{'b'});
1193: #
1194: $cols_output = 0;
1195: $excel_sheet->write($notes_row,$cols_output++,
1196: $chosen_output->{'non_html_notes'},
1197: $format->{'i'});
1198:
1199: ##############################################
1200: # Output headings for the raw data
1201: ##############################################
1202: #
1203: # Add the student headers
1204: $cols_output = 0;
1205: foreach my $field (&get_student_fields_to_show()) {
1206: $excel_sheet->write($resource_name_row,$cols_output++,$field,
1207: $format->{'bold'});
1208: }
1209: #
1210: # Add the remaining column headers
1211: my $total_formula_string = '=0';
1212: my $maximum_formula_string = '=0';
1213: foreach my $seq (@sequences) {
1214: my $symb = $seq->symb;
1215: $excel_sheet->write($sequence_name_row,,
1216: $cols_output,$seq->compTitle,$format->{'bold'});
1217: # Determine starting cell
1218: $formula_data{$symb}->{'Excel:startcell'}=
1219: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1220: ($first_data_row,$cols_output);
1221: $formula_data{$symb}->{'Excel:startcol'}=$cols_output;
1222: my $count = 0;
1223: if ($chosen_output->{'every_problem'}) {
1224: # Put the names of the problems and parts into the sheet
1225: foreach my $res (&get_resources($navmap,$seq)) {
1226: if (scalar(@{$res->parts}) > 1) {
1227: foreach my $part (@{$res->parts}) {
1228: $excel_sheet->write($resource_name_row,
1229: $cols_output++,
1230: $res->compTitle.' part '.$res->part_display($part),
1231: $format->{'bold'});
1232: $count++;
1233: }
1234: } else {
1235: $excel_sheet->write($resource_name_row,
1236: $cols_output++,
1237: $res->compTitle,$format->{'bold'});
1238: $count++;
1239: }
1240: }
1241: }
1242: # Determine ending cell
1243: if ($count <= 1) {
1244: $formula_data{$symb}->{'Excel:endcell'} = $formula_data{$symb}->{'Excel:startcell'};
1245: $formula_data{$symb}->{'Excel:endcol'} = $formula_data{$symb}->{'Excel:startcol'};
1246: } else {
1247: $formula_data{$symb}->{'Excel:endcell'} =
1248: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1249: ($first_data_row,$cols_output-1);
1250: $formula_data{$symb}->{'Excel:endcol'} = $cols_output-1;
1251: }
1252: # Create the formula for summing up this sequence
1253: if (! exists($formula_data{$symb}->{'Excel:endcell'}) ||
1254: ! defined($formula_data{$symb}->{'Excel:endcell'})) {
1255: $formula_data{$symb}->{'Excel:endcell'} = $formula_data{$symb}->{'Excel:startcell'};
1256: }
1257:
1258: my $start = $formula_data{$symb}->{'Excel:startcell'};
1259: my $end = $formula_data{$symb}->{'Excel:endcell'};
1260: $formula_data{$symb}->{'Excel:sum'}= $excel_sheet->store_formula
1261: ("=IF(COUNT($start\:$end),SUM($start\:$end),\"\")");
1262: # Determine cell the score is held in
1263: $formula_data{$symb}->{'Excel:scorecell'} =
1264: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1265: ($first_data_row,$cols_output);
1266: $formula_data{$symb}->{'Excel:scorecol'}=$cols_output;
1267: if ($chosen_output->{'base'} eq 'parts correct total') {
1268: $excel_sheet->write($resource_name_row,$cols_output++,
1269: &mt('parts correct'),
1270: $format->{'bold'});
1271: } elsif ($chosen_output->{'sequence_sum'}) {
1272: if ($chosen_output->{'correct'}) {
1273: # Only reporting the number correct, so do not call it score
1274: $excel_sheet->write($resource_name_row,$cols_output++,
1275: &mt('sum'),
1276: $format->{'bold'});
1277: } else {
1278: $excel_sheet->write($resource_name_row,$cols_output++,
1279: &mt('score'),
1280: $format->{'bold'});
1281: }
1282: }
1283: #
1284: $total_formula_string.='+'.
1285: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1286: ($first_data_row,$cols_output-1);
1287: if ($chosen_output->{'sequence_max'}) {
1288: $excel_sheet->write($resource_name_row,$cols_output,
1289: &mt('maximum'),
1290: $format->{'bold'});
1291: $formula_data{$symb}->{'Excel:maxcell'} =
1292: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1293: ($first_data_row,$cols_output);
1294: $formula_data{$symb}->{'Excel:maxcol'}=$cols_output;
1295: $maximum_formula_string.='+'.
1296: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1297: ($first_data_row,$cols_output);
1298: $cols_output++;
1299:
1300: }
1301: }
1302: if ($chosen_output->{'grand_total'}) {
1303: $excel_sheet->write($resource_name_row,$cols_output++,&mt('Total'),
1304: $format->{'bold'});
1305: }
1306: if ($chosen_output->{'grand_maximum'}) {
1307: $excel_sheet->write($resource_name_row,$cols_output++,&mt('Max. Total'),
1308: $format->{'bold'});
1309: }
1310: $total_formula = $excel_sheet->store_formula($total_formula_string);
1311: $maximum_formula = $excel_sheet->store_formula($maximum_formula_string);
1312: ##############################################
1313: # Output a row for MAX, if appropriate
1314: ##############################################
1315: if ($chosen_output->{'maximum_row'}) {
1316: $cols_output = 0;
1317: foreach my $field (&get_student_fields_to_show()) {
1318: if ($field eq 'username' || $field eq 'fullname' ||
1319: $field eq 'id') {
1320: $excel_sheet->write($maximum_data_row,$cols_output++,'Maximum',
1321: $format->{'bold'});
1322: } else {
1323: $excel_sheet->write($maximum_data_row,$cols_output++,'');
1324: }
1325: }
1326: #
1327: # Add the maximums for each sequence or assessment
1328: my %total_cell_translation;
1329: my %maximum_cell_translation;
1330: foreach my $seq (@sequences) {
1331: my $symb = $seq->symb;
1332: $cols_output=$formula_data{$symb}->{'Excel:startcol'};
1333: $total_cell_translation{$formula_data{$symb}->{'Excel:scorecell'}}=
1334: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1335: ($maximum_data_row,$formula_data{$symb}->{'Excel:scorecol'});
1336: $maximum_cell_translation{$formula_data{$symb}->{'Excel:maxcell'}}=
1337: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1338: ($maximum_data_row,$formula_data{$symb}->{'Excel:maxcol'});
1339: my $weight;
1340: my $max = 0;
1341: foreach my $resource (&get_resources($navmap,$seq)) {
1342: foreach my $part (@{$resource->parts}){
1343: $weight = 1;
1344: if ($chosen_output->{'scores'}) {
1345: $weight = &Apache::lonnet::EXT
1346: ('resource.'.$part.'.weight',$resource->symb,
1347: undef,undef,undef);
1348: if (!defined($weight) || ($weight eq '')) {
1349: $weight=1;
1350: }
1351: }
1352: if ($chosen_output->{'scores'} &&
1353: $chosen_output->{'every_problem'}) {
1354: $excel_sheet->write($maximum_data_row,$cols_output++,
1355: $weight);
1356: }
1357: $max += $weight;
1358: }
1359: }
1360: #
1361: if ($chosen_output->{'sequence_sum'} &&
1362: $chosen_output->{'every_problem'}) {
1363: my %replaceCells=
1364: ('^'.$formula_data{$symb}->{'Excel:startcell'}.':'.
1365: $formula_data{$symb}->{'Excel:endcell'}.'$' =>
1366: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell($maximum_data_row,$formula_data{$symb}->{'Excel:startcol'}).':'.
1367: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell($maximum_data_row,$formula_data{$symb}->{'Excel:endcol'}));
1368: $excel_sheet->repeat_formula($maximum_data_row,$cols_output++,
1369: $formula_data{$symb}->{'Excel:sum'},undef,
1370: %replaceCells, %replaceCells);
1371:
1372: } elsif ($chosen_output->{'sequence_sum'}) {
1373: $excel_sheet->write($maximum_data_row,$cols_output++,$max);
1374: }
1375: if ($chosen_output->{'sequence_max'}) {
1376: $excel_sheet->write($maximum_data_row,$cols_output++,$max);
1377: }
1378: #
1379: }
1380: if ($chosen_output->{'grand_total'}) {
1381: $excel_sheet->repeat_formula($maximum_data_row,$cols_output++,
1382: $total_formula,undef,
1383: %total_cell_translation);
1384: }
1385: if ($chosen_output->{'grand_maximum'}) {
1386: $excel_sheet->repeat_formula($maximum_data_row,$cols_output++,
1387: $maximum_formula,undef,
1388: %maximum_cell_translation);
1389: }
1390: } # End of MAXIMUM row output if ($chosen_output->{'maximum_row'}) {
1391: $rows_output = $first_data_row;
1392: ##############################################
1393: # Output summary table, which actually is above the sequence name row.
1394: ##############################################
1395: if ($chosen_output->{'summary_table'}) {
1396: $cols_output = 0;
1397: $excel_sheet->write($summary_header_row,$cols_output++,
1398: &mt('Summary Table'),$format->{'bold'});
1399: if ($chosen_output->{'maximum_row'}) {
1400: $excel_sheet->write($summary_header_row,$cols_output++,
1401: &mt('Maximum'),$format->{'bold'});
1402: }
1403: $excel_sheet->write($summary_header_row,$cols_output++,
1404: &mt('Average'),$format->{'bold'});
1405: $excel_sheet->write($summary_header_row,$cols_output++,
1406: &mt('Median'),$format->{'bold'});
1407: $excel_sheet->write($summary_header_row,$cols_output++,
1408: &mt('Std Dev'),$format->{'bold'});
1409: my $row = $summary_header_row+1;
1410: foreach my $seq (@sequences) {
1411: my $symb = $seq->symb;
1412: $cols_output = 0;
1413: $excel_sheet->write($row,$cols_output++,
1414: $seq->compTitle,
1415: $format->{'bold'});
1416: if ($chosen_output->{'maximum_row'}) {
1417: $excel_sheet->write
1418: ($row,$cols_output++,
1419: '='.
1420: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1421: ($maximum_data_row,$formula_data{$symb}->{'Excel:scorecol'})
1422: );
1423: }
1424: my $range =
1425: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1426: ($first_data_row,$formula_data{$symb}->{'Excel:scorecol'}).
1427: ':'.
1428: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1429: ($first_data_row+$num_students-1,$formula_data{$symb}->{'Excel:scorecol'});
1430: $excel_sheet->write($row,$cols_output++,
1431: '=AVERAGE('.$range.')');
1432: $excel_sheet->write($row,$cols_output++,
1433: '=MEDIAN('.$range.')');
1434: $excel_sheet->write($row,$cols_output++,
1435: '=STDEV('.$range.')');
1436: $row++;
1437: }
1438: }
1439: ##############################################
1440: # Take care of non-excel initialization
1441: ##############################################
1442: #
1443: # Let the user know what we are doing
1444: my $studentcount = scalar(@Apache::lonstatistics::Students);
1445: if ($env{'form.SelectedStudent'}) {
1446: $studentcount = '1';
1447: }
1448: $r->print('<p>'
1449: .&mt('Compiling Excel spreadsheet for [quant,_1,student]...',$studentcount)
1450: ."</p>\n"
1451: );
1452: $r->rflush();
1453: #
1454: # Initialize progress window
1455: %prog_state=&Apache::lonhtmlcommon::Create_PrgWin
1456: ($r,'Excel File Compilation Status',
1457: 'Excel File Compilation Progress', $studentcount,
1458: 'inline',undef,'Statistics','stats_status');
1459: #
1460: &Apache::lonhtmlcommon::Update_PrgWin($r,\%prog_state,
1461: 'Processing first student');
1462: return;
1463: }
1464:
1465: sub excel_outputstudent {
1466: my ($r,$student) = @_;
1467: if ($request_aborted || ! defined($navmap) || ! defined($excel_sheet)) {
1468: return;
1469: }
1470: $cols_output=0;
1471: #
1472: # Write out student data
1473: my @to_show = &get_student_fields_to_show();
1474: foreach my $field (@to_show) {
1475: my $value = $student->{$field};
1476: if ($field eq 'comments') {
1477: $value = &Apache::lonmsgdisplay::retrieve_instructor_comments
1478: ($student->{'username'},$student->{'domain'});
1479: }
1480: $excel_sheet->write($rows_output,$cols_output++,$value);
1481: }
1482: #
1483: # Get student assessment data
1484: my %StudentsData;
1485: my @tmp = &Apache::loncoursedata::get_current_state($student->{'username'},
1486: $student->{'domain'},
1487: undef,
1488: $env{'request.course.id'});
1489: if ((scalar @tmp > 0) && ($tmp[0] !~ /^error:/)) {
1490: %StudentsData = @tmp;
1491: }
1492: #
1493: # Write out sequence scores and totals data
1494: my %total_cell_translation;
1495: my %maximum_cell_translation;
1496: foreach my $seq (@sequences) {
1497: my $symb = $seq->symb;
1498: $cols_output = $formula_data{$symb}->{'Excel:startcol'};
1499: # Keep track of cells to translate in total cell
1500: $total_cell_translation{$formula_data{$symb}->{'Excel:scorecell'}} =
1501: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1502: ($rows_output,$formula_data{$symb}->{'Excel:scorecol'});
1503: # and maximum cell
1504: $maximum_cell_translation{$formula_data{$symb}->{'Excel:maxcell'}} =
1505: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1506: ($rows_output,$formula_data{$symb}->{'Excel:maxcol'});
1507: #
1508: my ($performance,$performance_length,$score,$seq_max,$rawdata);
1509: if ($chosen_output->{'tries'} || $chosen_output->{'correct'}){
1510: ($performance,$performance_length,$score,$seq_max,$rawdata) =
1511: &student_tries_on_sequence($student,\%StudentsData,
1512: $navmap,$seq,'no');
1513: } else {
1514: ($performance,$performance_length,$score,$seq_max,$rawdata) =
1515: &student_performance_on_sequence($student,\%StudentsData,
1516: $navmap,$seq,'no',
1517: $chosen_output->{ignore_weight});
1518: }
1519: if ($chosen_output->{'every_problem'}) {
1520: if ($chosen_output->{'correct'}) {
1521: # only indiciate if each item is correct or not
1522: foreach my $value (@$rawdata) {
1523: # positive means correct, 0 or negative means
1524: # incorrect
1525: $value = $value > 0 ? 1 : 0;
1526: $excel_sheet->write($rows_output,$cols_output++,$value);
1527: }
1528: } else {
1529: foreach my $value (@$rawdata) {
1530: if ($score eq ' ' || !defined($value)) {
1531: $cols_output++;
1532: } else {
1533: $excel_sheet->write($rows_output,$cols_output++,
1534: $value);
1535: }
1536: }
1537: }
1538: }
1539: if ($chosen_output->{'sequence_sum'} &&
1540: $chosen_output->{'every_problem'}) {
1541: # Write a formula for the sum of this sequence
1542: my %replaceCells=
1543: ('^'.$formula_data{$symb}->{'Excel:startcell'}.':'.$formula_data{$symb}->{'Excel:endcell'}.'$'
1544: =>
1545: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell($rows_output,$formula_data{$symb}->{'Excel:startcol'}).':'.
1546: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell($rows_output,$formula_data{$symb}->{'Excel:endcol'})
1547: );
1548: # The undef is for the format
1549: $excel_sheet->repeat_formula($rows_output,$cols_output++,
1550: $formula_data{$symb}->{'Excel:sum'},undef,
1551: %replaceCells, %replaceCells);
1552: } elsif ($chosen_output->{'sequence_sum'}) {
1553: if ($score eq ' ') {
1554: $cols_output++;
1555: } else {
1556: $excel_sheet->write($rows_output,$cols_output++,$score);
1557: }
1558: }
1559: if ($chosen_output->{'sequence_max'}) {
1560: $excel_sheet->write($rows_output,$cols_output++,$seq_max);
1561: }
1562: }
1563: #
1564: if ($chosen_output->{'grand_total'}) {
1565: $excel_sheet->repeat_formula($rows_output,$cols_output++,
1566: $total_formula,undef,
1567: %total_cell_translation);
1568: }
1569: if ($chosen_output->{'grand_maximum'}) {
1570: $excel_sheet->repeat_formula($rows_output,$cols_output++,
1571: $maximum_formula,undef,
1572: %maximum_cell_translation);
1573: }
1574: #
1575: # Bookkeeping
1576: $rows_output++;
1577: $cols_output=0;
1578: #
1579: # Update the progress window
1580: &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,'last student');
1581: return;
1582: }
1583:
1584: sub excel_finish {
1585: my ($r) = @_;
1586: if ($request_aborted || ! defined($navmap) || ! defined($excel_sheet)) {
1587: &excel_cleanup();
1588: return;
1589: }
1590: #
1591: # Write the excel file
1592: $excel_workbook->close();
1593: #
1594: # Close the progress window
1595: &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
1596: #
1597: # Tell the user where to get their excel file
1598: $r->print('<br />'.
1599: '<a href="'.$filename.'">'.&mt('Your Excel spreadsheet').'</a>'."\n");
1600: $r->rflush();
1601: &excel_cleanup();
1602: return;
1603: }
1604:
1605: }
1606: #######################################################
1607: #######################################################
1608:
1609: =pod
1610:
1611: =head2 CSV output routines
1612:
1613: =item &csv_initialize($r)
1614:
1615: =item &csv_outputstudent($r,$student)
1616:
1617: =item &csv_finish($r)
1618:
1619: =cut
1620:
1621: #######################################################
1622: #######################################################
1623: {
1624:
1625: my $outputfile;
1626: my $filename;
1627: my $request_aborted;
1628: my %prog_state; # progress window state
1629: my $navmap;
1630: my @sequences;
1631:
1632: sub csv_cleanup {
1633: undef($outputfile);
1634: undef($filename);
1635: undef($request_aborted);
1636: undef(%prog_state);
1637: #
1638: undef($navmap);
1639: undef(@sequences);
1640: }
1641:
1642: sub csv_initialize{
1643: my ($r) = @_;
1644:
1645: &csv_cleanup();
1646: ($navmap,@sequences) =
1647: &Apache::lonstatistics::selected_sequences_with_assessments();
1648: if (! ref($navmap)) {
1649: # Unable to get data, so bail out
1650: $r->print("<h3>".
1651: &mt('Unable to retrieve course information.').
1652: '</h3>');
1653: }
1654: #
1655: # Deal with unimplemented requests
1656: $request_aborted = undef;
1657: if ($chosen_output->{'base'} =~ /final table/) {
1658: $r->print(<<END);
1659: <h2>Unable to Complete Request</h2>
1660: <p>
1661: The <b>Summary Table (Scores)</b> option is not available for non-HTML output.
1662: </p>
1663: END
1664: $request_aborted = 1;
1665: }
1666: return if ($request_aborted);
1667: #
1668: # Initialize progress window
1669: my $studentcount = scalar(@Apache::lonstatistics::Students);
1670: %prog_state=&Apache::lonhtmlcommon::Create_PrgWin
1671: ($r,'CSV File Compilation Status',
1672: 'CSV File Compilation Progress', $studentcount,
1673: 'inline',undef,'Statistics','stats_status');
1674: #
1675: # Open a file
1676: ($outputfile,$filename) = &Apache::loncommon::create_text_file($r,'csv');
1677: if (! defined($outputfile)) { return ''; }
1678: #
1679: # Datestamp
1680: my $description = $env{'course.'.$env{'request.course.id'}.'.description'};
1681: print $outputfile '"'.&Apache::loncommon::csv_translate($description).'",'.
1682: '"'.&Apache::loncommon::csv_translate(scalar(localtime(time))).'"'.
1683: "\n";
1684: print $outputfile '"'.
1685: &Apache::loncommon::csv_translate
1686: (&Apache::lonstatistics::section_and_enrollment_description()).
1687: '"'."\n";
1688: foreach my $item ('shortdesc','non_html_notes') {
1689: next if (! exists($chosen_output->{$item}));
1690: print $outputfile
1691: '"'.&Apache::loncommon::csv_translate($chosen_output->{$item}).'"'.
1692: "\n";
1693: }
1694: #
1695: # Print out the headings
1696: my $sequence_row = '';
1697: my $resource_row = undef;
1698: foreach my $field (&get_student_fields_to_show()) {
1699: $sequence_row .='"",';
1700: $resource_row .= '"'.&Apache::loncommon::csv_translate($field).'",';
1701: }
1702: foreach my $seq (@sequences) {
1703: $sequence_row .= '"'.
1704: &Apache::loncommon::csv_translate($seq->compTitle).'",';
1705: my $count = 0;
1706: if ($chosen_output->{'every_problem'}) {
1707: foreach my $res (&get_resources($navmap,$seq)) {
1708: if (scalar(@{$res->parts}) < 1) {
1709: next;
1710: }
1711: foreach my $part (@{$res->parts}) {
1712: $resource_row .= '"'.
1713: &Apache::loncommon::csv_translate
1714: ($res->compTitle.', Part '.$res->part_display($part)).'",';
1715: $count++;
1716: }
1717: }
1718: }
1719: $sequence_row.='"",'x$count;
1720: if ($chosen_output->{'sequence_sum'}) {
1721: if($chosen_output->{'correct'}) {
1722: $resource_row .= '"'.&mt('sum').'",';
1723: } else {
1724: $resource_row .= '"'.&mt('score').'",';
1725: }
1726: }
1727: if ($chosen_output->{'sequence_max'}) {
1728: $sequence_row.= '"",';
1729: $resource_row .= '"'.&mt('maximum possible').'",';
1730: }
1731: }
1732: if ($chosen_output->{'grand_total'}) {
1733: $sequence_row.= '"",';
1734: $resource_row.= '"'.&mt('Total').'",';
1735: }
1736: if ($chosen_output->{'grand_maximum'}) {
1737: $sequence_row.= '"",';
1738: $resource_row.= '"'.&mt('Maximum').'",';
1739: }
1740: chomp($sequence_row);
1741: chomp($resource_row);
1742: print $outputfile $sequence_row."\n";
1743: print $outputfile $resource_row."\n";
1744: return;
1745: }
1746:
1747: sub csv_outputstudent {
1748: my ($r,$student) = @_;
1749: if ($request_aborted || ! defined($navmap) || ! defined($outputfile)) {
1750: return;
1751: }
1752: my $Str = '';
1753: #
1754: # Output student fields
1755: my @to_show = &get_student_fields_to_show();
1756: foreach my $field (@to_show) {
1757: my $value = $student->{$field};
1758: if ($field eq 'comments') {
1759: $value = &Apache::lonmsgdisplay::retrieve_instructor_comments
1760: ($student->{'username'},$student->{'domain'});
1761: }
1762: $Str .= '"'.&Apache::loncommon::csv_translate($value).'",';
1763: }
1764: #
1765: # Get student assessment data
1766: my %StudentsData;
1767: my @tmp = &Apache::loncoursedata::get_current_state($student->{'username'},
1768: $student->{'domain'},
1769: undef,
1770: $env{'request.course.id'});
1771: if ((scalar @tmp > 0) && ($tmp[0] !~ /^error:/)) {
1772: %StudentsData = @tmp;
1773: }
1774: #
1775: # Output performance data
1776: my $total = 0;
1777: my $maximum = 0;
1778: foreach my $seq (@sequences) {
1779: my ($performance,$performance_length,$score,$seq_max,$rawdata);
1780: if ($chosen_output->{'tries'}){
1781: ($performance,$performance_length,$score,$seq_max,$rawdata) =
1782: &student_tries_on_sequence($student,\%StudentsData,
1783: $navmap,$seq,'no');
1784: } else {
1785: ($performance,$performance_length,$score,$seq_max,$rawdata) =
1786: &student_performance_on_sequence($student,\%StudentsData,
1787: $navmap,$seq,'no',
1788: $chosen_output->{ignore_weight});
1789: }
1790: if ($chosen_output->{'every_problem'}) {
1791: if ($chosen_output->{'correct'}) {
1792: $score = 0;
1793: # Deal with number of parts correct data
1794: $Str .= '"'.join('","',( map { if ($_>0) {
1795: $score += 1;
1796: 1;
1797: } else {
1798: 0;
1799: }
1800: } @$rawdata)).'",';
1801: } else {
1802: $Str .= '"'.join('","',(@$rawdata)).'",';
1803: }
1804: }
1805: if ($chosen_output->{'sequence_sum'}) {
1806: $Str .= '"'.$score.'",';
1807: }
1808: if ($chosen_output->{'sequence_max'}) {
1809: $Str .= '"'.$seq_max.'",';
1810: }
1811: $total+=$score;
1812: $maximum += $seq_max;
1813: }
1814: if ($chosen_output->{'grand_total'}) {
1815: $Str .= '"'.$total.'",';
1816: }
1817: if ($chosen_output->{'grand_maximum'}) {
1818: $Str .= '"'.$maximum.'",';
1819: }
1820: chop($Str);
1821: $Str .= "\n";
1822: print $outputfile $Str;
1823: #
1824: # Update the progress window
1825: &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,'last student');
1826: return;
1827: }
1828:
1829: sub csv_finish {
1830: my ($r) = @_;
1831: if ($request_aborted || ! defined($navmap) || ! defined($outputfile)) {
1832: &csv_cleanup();
1833: return;
1834: }
1835: close($outputfile);
1836: #
1837: # Close the progress window
1838: &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
1839: #
1840: # Tell the user where to get their csv file
1841: $r->print('<br />'.
1842: '<a href="'.$filename.'">'.&mt('Your CSV file.').'</a>'."\n");
1843: $r->rflush();
1844: &csv_cleanup();
1845: return;
1846:
1847: }
1848:
1849: }
1850:
1851: # This function will return an HTML string including a star, with
1852: # a mouseover popup showing the "real" value. An optional second
1853: # argument lets you show something other than a star.
1854: sub show_star {
1855: my $popup = shift;
1856: my $symbol = shift || '*';
1857: # Escape the popup for JS.
1858: $popup =~ s/([^-a-zA-Z0-9:;,._ ()|!\/?=&*])/'\\' . sprintf("%lo", ord($1))/ge;
1859:
1860: return "<span class=\"LC_chrt_popup_exists\" onmouseover='popup_score(this, \"$popup\");return false;' onmouseout='popdown_score();return false;'>$symbol</span>";
1861: }
1862:
1863: #######################################################
1864: #######################################################
1865:
1866: =pod
1867:
1868: =item &StudentTriesOnSequence()
1869:
1870: Inputs:
1871:
1872: =over 4
1873:
1874: =item $student
1875:
1876: =item $studentdata Hash ref to all student data
1877:
1878: =item $seq Hash ref, the sequence we are working on
1879:
1880: =item $links if defined we will output links to each resource.
1881:
1882: =back
1883:
1884: =cut
1885:
1886: #######################################################
1887: #######################################################
1888: sub student_tries_on_sequence {
1889: my ($student,$studentdata,$navmap,$seq,$links) = @_;
1890: $links = 'no' if (! defined($links));
1891: my $Str = '';
1892: my ($sum,$max) = (0,0);
1893: my $performance_length = 0;
1894: my @TriesData = ();
1895: my $tries;
1896: my $hasdata = 0; # flag - true if the student has any data on the sequence
1897: foreach my $resource (&get_resources($navmap,$seq)) {
1898: my $resource_data = $studentdata->{$resource->symb};
1899: my $value = '';
1900: foreach my $partnum (@{$resource->parts()}) {
1901: $tries = undef;
1902: $max++;
1903: $performance_length++;
1904: my $symbol = ' '; # default to space
1905: #
1906: my $awarded = 0;
1907: if (exists($resource_data->{'resource.'.$partnum.'.awarded'})) {
1908: $awarded = $resource_data->{'resource.'.$partnum.'.awarded'};
1909: $awarded = 0 if (! $awarded);
1910: }
1911: #
1912: my $status = '';
1913: if (exists($resource_data->{'resource.'.$partnum.'.solved'})) {
1914: $status = $resource_data->{'resource.'.$partnum.'.solved'};
1915: }
1916: #
1917: my $tries = 0;
1918: if(exists($resource_data->{'resource.'.$partnum.'.tries'})) {
1919: $tries = $resource_data->{'resource.'.$partnum.'.tries'};
1920: $hasdata =1;
1921: }
1922: #
1923: if ($awarded > 0) {
1924: # The student has gotten the problem correct to some degree
1925: if ($status eq 'excused') {
1926: $symbol = 'x';
1927: $max--;
1928: } elsif ($status eq 'correct_by_override' && !$resource->is_task()) {
1929: $symbol = '+';
1930: $sum++;
1931: } elsif ($tries > 0) {
1932: if ($tries > 9) {
1933: $symbol = show_star($tries);
1934: } else {
1935: $symbol = $tries;
1936: }
1937: $sum++;
1938: } else {
1939: $symbol = '+';
1940: $sum++;
1941: }
1942: } else {
1943: # The student has the problem incorrect or it is ungraded
1944: if ($status eq 'excused') {
1945: $symbol = 'x';
1946: $max--;
1947: } elsif ($status eq 'incorrect_by_override') {
1948: $symbol = '-';
1949: } elsif ($status eq 'ungraded_attempted') {
1950: $symbol = 'u';
1951: } elsif ($status eq 'incorrect_attempted' ||
1952: $tries > 0) {
1953: $symbol = '.';
1954: } else {
1955: # Problem is wrong and has not been attempted.
1956: $symbol=' ';
1957: }
1958: }
1959: #
1960: if (! defined($tries)) {
1961: $tries = 0;
1962: }
1963: if ($status =~ /^(incorrect|ungraded)/) {
1964: # Bug 3390: show '-' for tries on incorrect problems
1965: # (csv & excel only)
1966: push(@TriesData,-$tries);
1967: } else {
1968: push (@TriesData,$tries);
1969: }
1970: #
1971: if ( ($links eq 'yes' && $symbol ne ' ') ||
1972: ($links eq 'all')) {
1973: my $link = '/adm/grades'.
1974: '?symb='.&escape($resource->shown_symb).
1975: '&student='.$student->{'username'}.
1976: '&userdom='.$student->{'domain'}.
1977: '&command=submission';
1978: $symbol = &link($symbol, $link);
1979: }
1980: $value .= $symbol;
1981: }
1982: $Str .= $value;
1983: }
1984: if ($seq->randompick()) {
1985: $max = $seq->randompick();
1986: }
1987: if (! $hasdata && $sum == 0) {
1988: $sum = ' ';
1989: }
1990: return ($Str,$performance_length,$sum,$max,\@TriesData);
1991: }
1992:
1993: =pod
1994:
1995: =item &link
1996:
1997: Inputs:
1998:
1999: =over 4
2000:
2001: =item $text
2002:
2003: =item $target
2004:
2005: =back
2006:
2007: Takes the text and creates a link to the $text that honors
2008: the value of 'new window' if clicked on, but uses a real
2009: 'href' so middle and right clicks still work.
2010:
2011: $target and $text are assumed to be already correctly escaped; i.e., it
2012: can be dumped out directly into the output stream as-is.
2013:
2014: =cut
2015:
2016: sub link {
2017: my ($text,$target) = @_;
2018: return
2019: "<a href='$target' onclick=\"t=this.href;if(new_window)"
2020: ."{window.open(t)}else{return void(window."
2021: ."location=t)};return false;\">$text</a>";
2022: }
2023:
2024: #######################################################
2025: #######################################################
2026:
2027: =pod
2028:
2029: =item &student_performance_on_sequence
2030:
2031: Inputs:
2032:
2033: =over 4
2034:
2035: =item $student
2036:
2037: =item $studentdata Hash ref to all student data
2038:
2039: =item $seq Hash ref, the sequence we are working on
2040:
2041: =item $links if defined we will output links to each resource.
2042:
2043: =back
2044:
2045: =cut
2046:
2047: #######################################################
2048: #######################################################
2049: sub student_performance_on_sequence {
2050: my ($student,$studentdata,$navmap,$seq,$links,$awarded_only) = @_;
2051: $links = 'no' if (! defined($links));
2052: my $Str = ''; # final result string
2053: my ($score,$max) = (0,0);
2054: my $performance_length = 0;
2055: my $symbol;
2056: my @ScoreData = ();
2057: my $partscore;
2058: my $hasdata = 0; # flag, 0 if there were no submissions on the sequence
2059: foreach my $resource (&get_resources($navmap,$seq)) {
2060: my $symb = $resource->symb;
2061: my $resource_data = $studentdata->{$symb};
2062: foreach my $part (@{$resource->parts()}) {
2063: $partscore = undef;
2064: my $weight;
2065: if (!$awarded_only){
2066: $weight = &Apache::lonnet::EXT('resource.'.$part.'.weight',
2067: $symb,
2068: $student->{'domain'},
2069: $student->{'username'},
2070: $student->{'section'});
2071: }
2072: if (!defined($weight) || ($weight eq '')) {
2073: $weight=1;
2074: }
2075: #
2076: $max += $weight; # see the 'excused' branch below...
2077: $performance_length++; # one character per part
2078: $symbol = ' '; # default to space
2079: #
2080: my $awarded;
2081: if (exists($resource_data->{'resource.'.$part.'.awarded'})) {
2082: $awarded = $resource_data->{'resource.'.$part.'.awarded'};
2083: $awarded = 0 if (! $awarded);
2084: $hasdata = 1;
2085: }
2086: #
2087: $partscore = &Apache::grades::compute_points($weight,$awarded);
2088: if (! defined($awarded)) {
2089: $partscore = undef;
2090: }
2091: $score += $partscore;
2092: $symbol = $partscore;
2093: if (abs($symbol - sprintf("%.0f",$symbol)) < 0.001) {
2094: $symbol = sprintf("%.0f",$symbol);
2095: }
2096: if (length($symbol) > 1) {
2097: $symbol = show_star($symbol);
2098: }
2099: if (exists($resource_data->{'resource.'.$part.'.solved'}) &&
2100: $resource_data->{'resource.'.$part.'.solved'} ne '') {
2101: my $status = $resource_data->{'resource.'.$part.'.solved'};
2102: if ($status eq 'excused') {
2103: $symbol = 'x';
2104: $max -= $weight; # Do not count 'excused' problems.
2105: } elsif ($status eq 'ungraded_attempted') {
2106: $symbol = 'u';
2107: }
2108: $hasdata = 1;
2109: } elsif ($resource_data->{'resource.'.$part.'.award'} eq 'DRAFT') {
2110: $symbol = 'd';
2111: $hasdata = 1;
2112: } elsif (!exists($resource_data->{'resource.'.$part.'.awarded'})){
2113: # Unsolved. Did they try?
2114: if (exists($resource_data->{'resource.'.$part.'.tries'})){
2115: $symbol = '.';
2116: $hasdata = 1;
2117: } else {
2118: $symbol = ' ';
2119: }
2120: }
2121: #
2122: if (! defined($partscore)) {
2123: $partscore = $symbol;
2124: }
2125: push (@ScoreData,$partscore);
2126: #
2127: if ( ($links eq 'yes' && $symbol ne ' ') || ($links eq 'all')) {
2128: my $link = '/adm/grades' .
2129: '?symb='.&escape($resource->shown_symb).
2130: '&student='.$student->{'username'}.
2131: '&userdom='.$student->{'domain'}.
2132: '&command=submission';
2133: $symbol = &link($symbol, $link);
2134: }
2135: $Str .= $symbol;
2136: }
2137: }
2138: if (! $hasdata && $score == 0) {
2139: $score = ' ';
2140: }
2141: return ($Str,$performance_length,$score,$max,\@ScoreData);
2142: }
2143:
2144: #######################################################
2145: #######################################################
2146:
2147: =pod
2148:
2149: =item &CreateLegend()
2150:
2151: This function returns a formatted string containing the legend for the
2152: chart. The legend describes the symbols used to represent grades for
2153: problems.
2154:
2155: =cut
2156:
2157: #######################################################
2158: #######################################################
2159: sub CreateLegend {
2160: my $Str = "<p><pre>".
2161: " digit score or number of tries to get correct ".
2162: " * correct by student in more than 9 tries\n".
2163: " + correct by hand grading or override\n".
2164: " - incorrect by override\n".
2165: " . incorrect attempted\n".
2166: " u ungraded attempted\n".
2167: " d draft answer saved but not submitted\n".
2168: " not attempted (blank field)\n".
2169: " x excused".
2170: "</pre><p>";
2171: return $Str;
2172: }
2173:
2174: #######################################################
2175: #######################################################
2176:
2177: =pod
2178:
2179: =back
2180:
2181: =cut
2182:
2183: #######################################################
2184: #######################################################
2185:
2186: 1;
2187:
2188: __END__
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