1: # The LearningOnline Network with CAPA
2: #
3: # $Id: lonstudentassessment.pm,v 1.149 2008/09/16 08:49:08 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: '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 .= '<span class="LC_warning">'
853: .&mt('No Course Data')
854: .'</span>'."\n";
855: } else {
856: $Str .= '<span class="LC_error">'
857: .&mt('Error getting student data ([_1])',$error)
858: .'</span>'."\n";
859: }
860: $nodata_count++;
861: $r->print($Str);
862: $r->rflush();
863: return;
864: }
865: #
866: # By sequence build up the data
867: my $studentstats;
868: my $PerformanceStr = '';
869: foreach my $seq (@sequences) {
870: my $symb = $seq->symb;
871: my ($performance,$performance_length,$score,$seq_max,$rawdata);
872: if ($chosen_output->{'tries'}) {
873: ($performance,$performance_length,$score,$seq_max,$rawdata) =
874: &student_tries_on_sequence($student,\%StudentsData,
875: $navmap,$seq,$show_links);
876: } else {
877: ($performance,$performance_length,$score,$seq_max,$rawdata) =
878: &student_performance_on_sequence($student,\%StudentsData,
879: $navmap,$seq,$show_links,
880: $chosen_output->{ignore_weight});
881: }
882: my $ratio='';
883: if ($chosen_output->{'every_problem'} &&
884: $chosen_output->{'sequence_sum'}) {
885: $ratio .= ' ';
886: }
887: if ($chosen_output->{'sequence_sum'} && $score ne ' ') {
888: my $score .= sprintf("%3.0f",$score);
889: $ratio .= (' 'x(3-length($score))).$score;
890: } elsif($chosen_output->{'sequence_sum'}) {
891: $ratio .= ' 'x3;
892: }
893: if ($chosen_output->{'sequence_max'}) {
894: if ($chosen_output->{'sequence_sum'}) {
895: $ratio .= '/';
896: }
897: $ratio .= sprintf("%3.0f",$seq_max);
898: }
899: #
900: if (! $chosen_output->{'every_problem'}) {
901: $performance = '';
902: $performance_length=0;
903: }
904: $performance .= ' 'x($width{$symb}->{'width_total'} -
905: $performance_length -
906: $width{$symb}->{'width_sum'}).
907: $ratio;
908: #
909: $Str .= $performance.$padding;
910: #
911: $studentstats->{$symb}->{'score'}= $score;
912: $studentstats->{$symb}->{'max'} = $seq_max;
913: }
914: #
915: # Total it up and store the statistics info.
916: my ($score,$max);
917: while (my ($symb,$seq_stats) = each (%{$studentstats})) {
918: $Statistics->{$symb}->{'score'} += $seq_stats->{'score'};
919: if ($Statistics->{$symb}->{'max'} < $seq_stats->{'max'}) {
920: $Statistics->{$symb}->{'max'} = $seq_stats->{'max'};
921: }
922: if ($seq_stats->{'score'} ne ' ') {
923: $score += $seq_stats->{'score'};
924: $Statistics->{$symb}->{'num_students'}++;
925: }
926: $max += $seq_stats->{'max'};
927: }
928: if (! defined($score)) {
929: $score = ' ' x $total_sum_width;
930: } else {
931: $score = sprintf("%.0f",$score);
932: $score = (' 'x(3-length($score))).$score;
933: }
934: $Str .= ' '.' 'x($total_sum_width-length($score)).$score.' / '.$max;
935: $Str .= " \n";
936: #
937: $r->print($Str);
938: #
939: $r->rflush();
940: &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,'last student');
941: return;
942: }
943:
944: sub html_finish {
945: my ($r) = @_;
946: return if (! defined($navmap));
947: #
948: # Check for suppressed output and close the progress window if so
949: $r->print("</pre>\n");
950: if ($chosen_output->{'summary_table'}) {
951: if ($single_student_mode) {
952: $r->print(&SingleStudentTotal());
953: } else {
954: $r->print(&StudentAverageTotal());
955: }
956: }
957: $r->rflush();
958: &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
959: &html_cleanup();
960: return;
961: }
962:
963: sub StudentAverageTotal {
964: my $Str = '<h3>'.&mt('Summary Tables').'</h3>'.$/;
965: $Str .= '<table border=2 cellspacing="1">'."\n";
966: $Str .= '<tr>'.
967: '<th>'.&mt('Title').'</th>'.
968: '<th>'.&mt('Average').'</th>'.
969: '<th>'.&mt('Maximum').'</th>'.
970: '</tr>'.$/;
971: foreach my $seq (@sequences) {
972: my $symb = $seq->symb;
973: my $ave;
974: my $num_students = $Statistics->{$symb}->{'num_students'};
975: if ($num_students > 0) {
976: $ave = int(100*
977: ($Statistics->{$symb}->{'score'}/$num_students)
978: )/100;
979: } else {
980: $ave = 0;
981: }
982: my $max = $Statistics->{$symb}->{'max'};
983: $ave = sprintf("%.2f",$ave);
984: $Str .= '<tr><td>'.$seq->compTitle.'</td>'.
985: '<td align="right">'.$ave.' </td>'.
986: '<td align="right">'.$max.' '.'</td></tr>'."\n";
987: }
988: $Str .= "</table>\n";
989: return $Str;
990: }
991:
992: sub SingleStudentTotal {
993: return if (! defined($navmap));
994: my $student = &Apache::lonstatistics::current_student();
995: my $Str = '<h3>'.&mt('Summary table for [_1] ([_2]@[_3])',
996: $student->{'fullname'},
997: $student->{'username'},$student->{'domain'}).'</h3>';
998: $Str .= $/;
999: $Str .= '<table border=2 cellspacing="1">'."\n";
1000: $Str .=
1001: '<tr>'.
1002: '<th>'.&mt('Sequence or Folder').'</th>';
1003: if ($chosen_output->{'base'} eq 'tries') {
1004: $Str .= '<th>'.&mt('Parts Correct').'</th>';
1005: } else {
1006: $Str .= '<th>'.&mt('Score').'</th>';
1007: }
1008: $Str .= '<th>'.&mt('Maximum').'</th>'."</tr>\n";
1009: my $total = 0;
1010: my $total_max = 0;
1011: foreach my $seq (@sequences) {
1012: my $value = $Statistics->{$seq->symb}->{'score'};
1013: my $max = $Statistics->{$seq->symb}->{'max'};
1014: $Str .= '<tr><td>'.&HTML::Entities::encode($seq->compTitle).'</td>'.
1015: '<td align="right">'.$value.'</td>'.
1016: '<td align="right">'.$max.'</td></tr>'."\n";
1017: $total += $value;
1018: $total_max +=$max;
1019: }
1020: $Str .= '<tr><td><b>'.&mt('Total').'</b></td>'.
1021: '<td align="right">'.$total.'</td>'.
1022: '<td align="right">'.$total_max."</td></tr>\n";
1023: $Str .= "</table>\n";
1024: return $Str;
1025: }
1026:
1027: }
1028:
1029: #######################################################
1030: #######################################################
1031:
1032: =pod
1033:
1034: =head2 EXCEL subroutines
1035:
1036: =item &excel_initialize($r)
1037:
1038: =item &excel_outputstudent($r,$student)
1039:
1040: =item &excel_finish($r)
1041:
1042: =cut
1043:
1044: #######################################################
1045: #######################################################
1046: {
1047:
1048: my $excel_sheet;
1049: my $excel_workbook;
1050: my $format;
1051:
1052: my $filename;
1053: my $rows_output;
1054: my $cols_output;
1055:
1056: my %prog_state; # progress window state
1057: my $request_aborted;
1058:
1059: my $total_formula;
1060: my $maximum_formula;
1061: my %formula_data;
1062:
1063: my $navmap;
1064: my @sequences;
1065:
1066: sub excel_cleanup {
1067: #
1068: undef ($excel_sheet);
1069: undef ($excel_workbook);
1070: undef ($filename);
1071: undef ($rows_output);
1072: undef ($cols_output);
1073: undef (%prog_state);
1074: undef ($request_aborted);
1075: undef ($total_formula);
1076: undef ($maximum_formula);
1077: #
1078: undef(%formula_data);
1079: #
1080: undef($navmap);
1081: undef(@sequences);
1082: }
1083:
1084: sub excel_initialize {
1085: my ($r) = @_;
1086:
1087: &excel_cleanup();
1088: ($navmap,@sequences) =
1089: &Apache::lonstatistics::selected_sequences_with_assessments();
1090: if (! ref($navmap)) {
1091: # Unable to get data, so bail out
1092: $r->print("<h3>".
1093: &mt('Unable to retrieve course information.').
1094: '</h3>');
1095: }
1096: #
1097: my $total_columns = scalar(&get_student_fields_to_show());
1098: my $num_students = scalar(@Apache::lonstatistics::Students);
1099: #
1100: foreach my $seq (@sequences) {
1101: if ($chosen_output->{'every_problem'}) {
1102: $total_columns+=&count_parts($navmap,$seq);
1103: }
1104: # Add 2 because we need a 'sequence_sum' and 'total' column for each
1105: $total_columns += 2;
1106: }
1107: my $too_many_cols_error_message =
1108: '<h2>'.&mt('Unable to Complete Request').'</h2>'.$/.
1109: '<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>'.$/.
1110: '<p>'.&mt('You may consider reducing the number of <b>Sequences or Folders</b> you have selected.').'</p>'.$/.
1111: '<p>'.&mt('LON-CAPA can produce <b>CSV</b> files of this data or Excel files of the <b>Scores Summary</b> data.').'</p>'.$/;
1112: if ($chosen_output->{'base'} eq 'tries' && $total_columns > 255) {
1113: $r->print($too_many_cols_error_message);
1114: $request_aborted = 1;
1115: }
1116: if ($chosen_output->{'base'} eq 'scores' && $total_columns > 255) {
1117: $r->print($too_many_cols_error_message);
1118: $request_aborted = 1;
1119: }
1120: return if ($request_aborted);
1121: #
1122: #
1123: $excel_workbook = undef;
1124: $excel_sheet = undef;
1125: #
1126: $rows_output = 0;
1127: $cols_output = 0;
1128: #
1129: # Determine rows
1130: my $header_row = $rows_output++;
1131: my $description_row = $rows_output++;
1132: my $notes_row = $rows_output++;
1133: $rows_output++; # blank row
1134: my $summary_header_row;
1135: if ($chosen_output->{'summary_table'}) {
1136: $summary_header_row = $rows_output++;
1137: $rows_output+= scalar(@sequences);
1138: $rows_output++;
1139: }
1140: my $sequence_name_row = $rows_output++;
1141: my $resource_name_row = $rows_output++;
1142: my $maximum_data_row = $rows_output++;
1143: if (! $chosen_output->{'maximum_row'}) {
1144: $rows_output--;
1145: }
1146: my $first_data_row = $rows_output++;
1147: #
1148: # Create sheet
1149: ($excel_workbook,$filename,$format)=
1150: &Apache::loncommon::create_workbook($r);
1151: return if (! defined($excel_workbook));
1152: #
1153: # Add a worksheet
1154: my $sheetname = $env{'course.'.$env{'request.course.id'}.'.description'};
1155: $sheetname = &Apache::loncommon::clean_excel_name($sheetname);
1156: $excel_sheet = $excel_workbook->addworksheet($sheetname);
1157: #
1158: # Put the course description in the header
1159: $excel_sheet->write($header_row,$cols_output++,
1160: $env{'course.'.$env{'request.course.id'}.'.description'},
1161: $format->{'h1'});
1162: $cols_output += 3;
1163: #
1164: # Put a description of the sections listed
1165: my $sectionstring = '';
1166: my @Sections = &Apache::lonstatistics::get_selected_sections();
1167: $excel_sheet->write($header_row,$cols_output++,
1168: &Apache::lonstatistics::section_and_enrollment_description('plaintext'),
1169: $format->{'h3'});
1170: #
1171: # Put the date in there too
1172: $excel_sheet->write($header_row,$cols_output++,
1173: 'Compiled on '.localtime(time),$format->{'h3'});
1174: #
1175: $cols_output = 0;
1176: $excel_sheet->write($description_row,$cols_output++,
1177: $chosen_output->{'shortdesc'},
1178: $format->{'b'});
1179: #
1180: $cols_output = 0;
1181: $excel_sheet->write($notes_row,$cols_output++,
1182: $chosen_output->{'non_html_notes'},
1183: $format->{'i'});
1184:
1185: ##############################################
1186: # Output headings for the raw data
1187: ##############################################
1188: #
1189: # Add the student headers
1190: $cols_output = 0;
1191: foreach my $field (&get_student_fields_to_show()) {
1192: $excel_sheet->write($resource_name_row,$cols_output++,$field,
1193: $format->{'bold'});
1194: }
1195: #
1196: # Add the remaining column headers
1197: my $total_formula_string = '=0';
1198: my $maximum_formula_string = '=0';
1199: foreach my $seq (@sequences) {
1200: my $symb = $seq->symb;
1201: $excel_sheet->write($sequence_name_row,,
1202: $cols_output,$seq->compTitle,$format->{'bold'});
1203: # Determine starting cell
1204: $formula_data{$symb}->{'Excel:startcell'}=
1205: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1206: ($first_data_row,$cols_output);
1207: $formula_data{$symb}->{'Excel:startcol'}=$cols_output;
1208: my $count = 0;
1209: if ($chosen_output->{'every_problem'}) {
1210: # Put the names of the problems and parts into the sheet
1211: foreach my $res (&get_resources($navmap,$seq)) {
1212: if (scalar(@{$res->parts}) > 1) {
1213: foreach my $part (@{$res->parts}) {
1214: $excel_sheet->write($resource_name_row,
1215: $cols_output++,
1216: $res->compTitle.' part '.$res->part_display($part),
1217: $format->{'bold'});
1218: $count++;
1219: }
1220: } else {
1221: $excel_sheet->write($resource_name_row,
1222: $cols_output++,
1223: $res->compTitle,$format->{'bold'});
1224: $count++;
1225: }
1226: }
1227: }
1228: # Determine ending cell
1229: if ($count <= 1) {
1230: $formula_data{$symb}->{'Excel:endcell'} = $formula_data{$symb}->{'Excel:startcell'};
1231: $formula_data{$symb}->{'Excel:endcol'} = $formula_data{$symb}->{'Excel:startcol'};
1232: } else {
1233: $formula_data{$symb}->{'Excel:endcell'} =
1234: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1235: ($first_data_row,$cols_output-1);
1236: $formula_data{$symb}->{'Excel:endcol'} = $cols_output-1;
1237: }
1238: # Create the formula for summing up this sequence
1239: if (! exists($formula_data{$symb}->{'Excel:endcell'}) ||
1240: ! defined($formula_data{$symb}->{'Excel:endcell'})) {
1241: $formula_data{$symb}->{'Excel:endcell'} = $formula_data{$symb}->{'Excel:startcell'};
1242: }
1243:
1244: my $start = $formula_data{$symb}->{'Excel:startcell'};
1245: my $end = $formula_data{$symb}->{'Excel:endcell'};
1246: $formula_data{$symb}->{'Excel:sum'}= $excel_sheet->store_formula
1247: ("=IF(COUNT($start\:$end),SUM($start\:$end),\"\")");
1248: # Determine cell the score is held in
1249: $formula_data{$symb}->{'Excel:scorecell'} =
1250: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1251: ($first_data_row,$cols_output);
1252: $formula_data{$symb}->{'Excel:scorecol'}=$cols_output;
1253: if ($chosen_output->{'base'} eq 'parts correct total') {
1254: $excel_sheet->write($resource_name_row,$cols_output++,
1255: 'parts correct',
1256: $format->{'bold'});
1257: } elsif ($chosen_output->{'sequence_sum'}) {
1258: if ($chosen_output->{'correct'}) {
1259: # Only reporting the number correct, so do not call it score
1260: $excel_sheet->write($resource_name_row,$cols_output++,
1261: 'sum',
1262: $format->{'bold'});
1263: } else {
1264: $excel_sheet->write($resource_name_row,$cols_output++,
1265: 'score',
1266: $format->{'bold'});
1267: }
1268: }
1269: #
1270: $total_formula_string.='+'.
1271: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1272: ($first_data_row,$cols_output-1);
1273: if ($chosen_output->{'sequence_max'}) {
1274: $excel_sheet->write($resource_name_row,$cols_output,
1275: 'maximum',
1276: $format->{'bold'});
1277: $formula_data{$symb}->{'Excel:maxcell'} =
1278: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1279: ($first_data_row,$cols_output);
1280: $formula_data{$symb}->{'Excel:maxcol'}=$cols_output;
1281: $maximum_formula_string.='+'.
1282: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1283: ($first_data_row,$cols_output);
1284: $cols_output++;
1285:
1286: }
1287: }
1288: if ($chosen_output->{'grand_total'}) {
1289: $excel_sheet->write($resource_name_row,$cols_output++,'Total',
1290: $format->{'bold'});
1291: }
1292: if ($chosen_output->{'grand_maximum'}) {
1293: $excel_sheet->write($resource_name_row,$cols_output++,'Max. Total',
1294: $format->{'bold'});
1295: }
1296: $total_formula = $excel_sheet->store_formula($total_formula_string);
1297: $maximum_formula = $excel_sheet->store_formula($maximum_formula_string);
1298: ##############################################
1299: # Output a row for MAX, if appropriate
1300: ##############################################
1301: if ($chosen_output->{'maximum_row'}) {
1302: $cols_output = 0;
1303: foreach my $field (&get_student_fields_to_show()) {
1304: if ($field eq 'username' || $field eq 'fullname' ||
1305: $field eq 'id') {
1306: $excel_sheet->write($maximum_data_row,$cols_output++,'Maximum',
1307: $format->{'bold'});
1308: } else {
1309: $excel_sheet->write($maximum_data_row,$cols_output++,'');
1310: }
1311: }
1312: #
1313: # Add the maximums for each sequence or assessment
1314: my %total_cell_translation;
1315: my %maximum_cell_translation;
1316: foreach my $seq (@sequences) {
1317: my $symb = $seq->symb;
1318: $cols_output=$formula_data{$symb}->{'Excel:startcol'};
1319: $total_cell_translation{$formula_data{$symb}->{'Excel:scorecell'}}=
1320: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1321: ($maximum_data_row,$formula_data{$symb}->{'Excel:scorecol'});
1322: $maximum_cell_translation{$formula_data{$symb}->{'Excel:maxcell'}}=
1323: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1324: ($maximum_data_row,$formula_data{$symb}->{'Excel:maxcol'});
1325: my $weight;
1326: my $max = 0;
1327: foreach my $resource (&get_resources($navmap,$seq)) {
1328: foreach my $part (@{$resource->parts}){
1329: $weight = 1;
1330: if ($chosen_output->{'scores'}) {
1331: $weight = &Apache::lonnet::EXT
1332: ('resource.'.$part.'.weight',$resource->symb,
1333: undef,undef,undef);
1334: if (!defined($weight) || ($weight eq '')) {
1335: $weight=1;
1336: }
1337: }
1338: if ($chosen_output->{'scores'} &&
1339: $chosen_output->{'every_problem'}) {
1340: $excel_sheet->write($maximum_data_row,$cols_output++,
1341: $weight);
1342: }
1343: $max += $weight;
1344: }
1345: }
1346: #
1347: if ($chosen_output->{'sequence_sum'} &&
1348: $chosen_output->{'every_problem'}) {
1349: my %replaceCells=
1350: ('^'.$formula_data{$symb}->{'Excel:startcell'}.':'.
1351: $formula_data{$symb}->{'Excel:endcell'}.'$' =>
1352: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell($maximum_data_row,$formula_data{$symb}->{'Excel:startcol'}).':'.
1353: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell($maximum_data_row,$formula_data{$symb}->{'Excel:endcol'}));
1354: $excel_sheet->repeat_formula($maximum_data_row,$cols_output++,
1355: $formula_data{$symb}->{'Excel:sum'},undef,
1356: %replaceCells, %replaceCells);
1357:
1358: } elsif ($chosen_output->{'sequence_sum'}) {
1359: $excel_sheet->write($maximum_data_row,$cols_output++,$max);
1360: }
1361: if ($chosen_output->{'sequence_max'}) {
1362: $excel_sheet->write($maximum_data_row,$cols_output++,$max);
1363: }
1364: #
1365: }
1366: if ($chosen_output->{'grand_total'}) {
1367: $excel_sheet->repeat_formula($maximum_data_row,$cols_output++,
1368: $total_formula,undef,
1369: %total_cell_translation);
1370: }
1371: if ($chosen_output->{'grand_maximum'}) {
1372: $excel_sheet->repeat_formula($maximum_data_row,$cols_output++,
1373: $maximum_formula,undef,
1374: %maximum_cell_translation);
1375: }
1376: } # End of MAXIMUM row output if ($chosen_output->{'maximum_row'}) {
1377: $rows_output = $first_data_row;
1378: ##############################################
1379: # Output summary table, which actually is above the sequence name row.
1380: ##############################################
1381: if ($chosen_output->{'summary_table'}) {
1382: $cols_output = 0;
1383: $excel_sheet->write($summary_header_row,$cols_output++,
1384: 'Summary Table',$format->{'bold'});
1385: if ($chosen_output->{'maximum_row'}) {
1386: $excel_sheet->write($summary_header_row,$cols_output++,
1387: 'Maximum',$format->{'bold'});
1388: }
1389: $excel_sheet->write($summary_header_row,$cols_output++,
1390: 'Average',$format->{'bold'});
1391: $excel_sheet->write($summary_header_row,$cols_output++,
1392: 'Median',$format->{'bold'});
1393: $excel_sheet->write($summary_header_row,$cols_output++,
1394: 'Std Dev',$format->{'bold'});
1395: my $row = $summary_header_row+1;
1396: foreach my $seq (@sequences) {
1397: my $symb = $seq->symb;
1398: $cols_output = 0;
1399: $excel_sheet->write($row,$cols_output++,
1400: $seq->compTitle,
1401: $format->{'bold'});
1402: if ($chosen_output->{'maximum_row'}) {
1403: $excel_sheet->write
1404: ($row,$cols_output++,
1405: '='.
1406: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1407: ($maximum_data_row,$formula_data{$symb}->{'Excel:scorecol'})
1408: );
1409: }
1410: my $range =
1411: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1412: ($first_data_row,$formula_data{$symb}->{'Excel:scorecol'}).
1413: ':'.
1414: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1415: ($first_data_row+$num_students-1,$formula_data{$symb}->{'Excel:scorecol'});
1416: $excel_sheet->write($row,$cols_output++,
1417: '=AVERAGE('.$range.')');
1418: $excel_sheet->write($row,$cols_output++,
1419: '=MEDIAN('.$range.')');
1420: $excel_sheet->write($row,$cols_output++,
1421: '=STDEV('.$range.')');
1422: $row++;
1423: }
1424: }
1425: ##############################################
1426: # Take care of non-excel initialization
1427: ##############################################
1428: #
1429: # Let the user know what we are doing
1430: my $studentcount = scalar(@Apache::lonstatistics::Students);
1431: if ($env{'form.SelectedStudent'}) {
1432: $studentcount = '1';
1433: }
1434: if ($studentcount > 1) {
1435: $r->print('<h1>'.&mt('Compiling Excel spreadsheet for [_1] students',
1436: $studentcount)."</h1>\n");
1437: } else {
1438: $r->print('<h1>'.
1439: &mt('Compiling Excel spreadsheet for 1 student').
1440: "</h1>\n");
1441: }
1442: $r->rflush();
1443: #
1444: # Initialize progress window
1445: %prog_state=&Apache::lonhtmlcommon::Create_PrgWin
1446: ($r,'Excel File Compilation Status',
1447: 'Excel File Compilation Progress', $studentcount,
1448: 'inline',undef,'Statistics','stats_status');
1449: #
1450: &Apache::lonhtmlcommon::Update_PrgWin($r,\%prog_state,
1451: 'Processing first student');
1452: return;
1453: }
1454:
1455: sub excel_outputstudent {
1456: my ($r,$student) = @_;
1457: if ($request_aborted || ! defined($navmap) || ! defined($excel_sheet)) {
1458: return;
1459: }
1460: $cols_output=0;
1461: #
1462: # Write out student data
1463: my @to_show = &get_student_fields_to_show();
1464: foreach my $field (@to_show) {
1465: my $value = $student->{$field};
1466: if ($field eq 'comments') {
1467: $value = &Apache::lonmsgdisplay::retrieve_instructor_comments
1468: ($student->{'username'},$student->{'domain'});
1469: }
1470: $excel_sheet->write($rows_output,$cols_output++,$value);
1471: }
1472: #
1473: # Get student assessment data
1474: my %StudentsData;
1475: my @tmp = &Apache::loncoursedata::get_current_state($student->{'username'},
1476: $student->{'domain'},
1477: undef,
1478: $env{'request.course.id'});
1479: if ((scalar @tmp > 0) && ($tmp[0] !~ /^error:/)) {
1480: %StudentsData = @tmp;
1481: }
1482: #
1483: # Write out sequence scores and totals data
1484: my %total_cell_translation;
1485: my %maximum_cell_translation;
1486: foreach my $seq (@sequences) {
1487: my $symb = $seq->symb;
1488: $cols_output = $formula_data{$symb}->{'Excel:startcol'};
1489: # Keep track of cells to translate in total cell
1490: $total_cell_translation{$formula_data{$symb}->{'Excel:scorecell'}} =
1491: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1492: ($rows_output,$formula_data{$symb}->{'Excel:scorecol'});
1493: # and maximum cell
1494: $maximum_cell_translation{$formula_data{$symb}->{'Excel:maxcell'}} =
1495: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1496: ($rows_output,$formula_data{$symb}->{'Excel:maxcol'});
1497: #
1498: my ($performance,$performance_length,$score,$seq_max,$rawdata);
1499: if ($chosen_output->{'tries'} || $chosen_output->{'correct'}){
1500: ($performance,$performance_length,$score,$seq_max,$rawdata) =
1501: &student_tries_on_sequence($student,\%StudentsData,
1502: $navmap,$seq,'no');
1503: } else {
1504: ($performance,$performance_length,$score,$seq_max,$rawdata) =
1505: &student_performance_on_sequence($student,\%StudentsData,
1506: $navmap,$seq,'no',
1507: $chosen_output->{ignore_weight});
1508: }
1509: if ($chosen_output->{'every_problem'}) {
1510: if ($chosen_output->{'correct'}) {
1511: # only indiciate if each item is correct or not
1512: foreach my $value (@$rawdata) {
1513: # positive means correct, 0 or negative means
1514: # incorrect
1515: $value = $value > 0 ? 1 : 0;
1516: $excel_sheet->write($rows_output,$cols_output++,$value);
1517: }
1518: } else {
1519: foreach my $value (@$rawdata) {
1520: if ($score eq ' ' || !defined($value)) {
1521: $cols_output++;
1522: } else {
1523: $excel_sheet->write($rows_output,$cols_output++,
1524: $value);
1525: }
1526: }
1527: }
1528: }
1529: if ($chosen_output->{'sequence_sum'} &&
1530: $chosen_output->{'every_problem'}) {
1531: # Write a formula for the sum of this sequence
1532: my %replaceCells=
1533: ('^'.$formula_data{$symb}->{'Excel:startcell'}.':'.$formula_data{$symb}->{'Excel:endcell'}.'$'
1534: =>
1535: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell($rows_output,$formula_data{$symb}->{'Excel:startcol'}).':'.
1536: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell($rows_output,$formula_data{$symb}->{'Excel:endcol'})
1537: );
1538: # The undef is for the format
1539: $excel_sheet->repeat_formula($rows_output,$cols_output++,
1540: $formula_data{$symb}->{'Excel:sum'},undef,
1541: %replaceCells, %replaceCells);
1542: } elsif ($chosen_output->{'sequence_sum'}) {
1543: if ($score eq ' ') {
1544: $cols_output++;
1545: } else {
1546: $excel_sheet->write($rows_output,$cols_output++,$score);
1547: }
1548: }
1549: if ($chosen_output->{'sequence_max'}) {
1550: $excel_sheet->write($rows_output,$cols_output++,$seq_max);
1551: }
1552: }
1553: #
1554: if ($chosen_output->{'grand_total'}) {
1555: $excel_sheet->repeat_formula($rows_output,$cols_output++,
1556: $total_formula,undef,
1557: %total_cell_translation);
1558: }
1559: if ($chosen_output->{'grand_maximum'}) {
1560: $excel_sheet->repeat_formula($rows_output,$cols_output++,
1561: $maximum_formula,undef,
1562: %maximum_cell_translation);
1563: }
1564: #
1565: # Bookkeeping
1566: $rows_output++;
1567: $cols_output=0;
1568: #
1569: # Update the progress window
1570: &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,'last student');
1571: return;
1572: }
1573:
1574: sub excel_finish {
1575: my ($r) = @_;
1576: if ($request_aborted || ! defined($navmap) || ! defined($excel_sheet)) {
1577: &excel_cleanup();
1578: return;
1579: }
1580: #
1581: # Write the excel file
1582: $excel_workbook->close();
1583: #
1584: # Close the progress window
1585: &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
1586: #
1587: # Tell the user where to get their excel file
1588: $r->print('<br />'.
1589: '<a href="'.$filename.'">Your Excel spreadsheet.</a>'."\n");
1590: $r->rflush();
1591: &excel_cleanup();
1592: return;
1593: }
1594:
1595: }
1596: #######################################################
1597: #######################################################
1598:
1599: =pod
1600:
1601: =head2 CSV output routines
1602:
1603: =item &csv_initialize($r)
1604:
1605: =item &csv_outputstudent($r,$student)
1606:
1607: =item &csv_finish($r)
1608:
1609: =cut
1610:
1611: #######################################################
1612: #######################################################
1613: {
1614:
1615: my $outputfile;
1616: my $filename;
1617: my $request_aborted;
1618: my %prog_state; # progress window state
1619: my $navmap;
1620: my @sequences;
1621:
1622: sub csv_cleanup {
1623: undef($outputfile);
1624: undef($filename);
1625: undef($request_aborted);
1626: undef(%prog_state);
1627: #
1628: undef($navmap);
1629: undef(@sequences);
1630: }
1631:
1632: sub csv_initialize{
1633: my ($r) = @_;
1634:
1635: &csv_cleanup();
1636: ($navmap,@sequences) =
1637: &Apache::lonstatistics::selected_sequences_with_assessments();
1638: if (! ref($navmap)) {
1639: # Unable to get data, so bail out
1640: $r->print("<h3>".
1641: &mt('Unable to retrieve course information.').
1642: '</h3>');
1643: }
1644: #
1645: # Deal with unimplemented requests
1646: $request_aborted = undef;
1647: if ($chosen_output->{'base'} =~ /final table/) {
1648: $r->print(<<END);
1649: <h2>Unable to Complete Request</h2>
1650: <p>
1651: The <b>Summary Table (Scores)</b> option is not available for non-HTML output.
1652: </p>
1653: END
1654: $request_aborted = 1;
1655: }
1656: return if ($request_aborted);
1657: #
1658: # Initialize progress window
1659: my $studentcount = scalar(@Apache::lonstatistics::Students);
1660: %prog_state=&Apache::lonhtmlcommon::Create_PrgWin
1661: ($r,'CSV File Compilation Status',
1662: 'CSV File Compilation Progress', $studentcount,
1663: 'inline',undef,'Statistics','stats_status');
1664: #
1665: # Open a file
1666: ($outputfile,$filename) = &Apache::loncommon::create_text_file($r,'csv');
1667: if (! defined($outputfile)) { return ''; }
1668: #
1669: # Datestamp
1670: my $description = $env{'course.'.$env{'request.course.id'}.'.description'};
1671: print $outputfile '"'.&Apache::loncommon::csv_translate($description).'",'.
1672: '"'.&Apache::loncommon::csv_translate(scalar(localtime(time))).'"'.
1673: "\n";
1674: print $outputfile '"'.
1675: &Apache::loncommon::csv_translate
1676: (&Apache::lonstatistics::section_and_enrollment_description()).
1677: '"'."\n";
1678: foreach my $item ('shortdesc','non_html_notes') {
1679: next if (! exists($chosen_output->{$item}));
1680: print $outputfile
1681: '"'.&Apache::loncommon::csv_translate($chosen_output->{$item}).'"'.
1682: "\n";
1683: }
1684: #
1685: # Print out the headings
1686: my $sequence_row = '';
1687: my $resource_row = undef;
1688: foreach my $field (&get_student_fields_to_show()) {
1689: $sequence_row .='"",';
1690: $resource_row .= '"'.&Apache::loncommon::csv_translate($field).'",';
1691: }
1692: foreach my $seq (@sequences) {
1693: $sequence_row .= '"'.
1694: &Apache::loncommon::csv_translate($seq->compTitle).'",';
1695: my $count = 0;
1696: if ($chosen_output->{'every_problem'}) {
1697: foreach my $res (&get_resources($navmap,$seq)) {
1698: if (scalar(@{$res->parts}) < 1) {
1699: next;
1700: }
1701: foreach my $part (@{$res->parts}) {
1702: $resource_row .= '"'.
1703: &Apache::loncommon::csv_translate
1704: ($res->compTitle.', Part '.$res->part_display($part)).'",';
1705: $count++;
1706: }
1707: }
1708: }
1709: $sequence_row.='"",'x$count;
1710: if ($chosen_output->{'sequence_sum'}) {
1711: if($chosen_output->{'correct'}) {
1712: $resource_row .= '"sum",';
1713: } else {
1714: $resource_row .= '"score",';
1715: }
1716: }
1717: if ($chosen_output->{'sequence_max'}) {
1718: $sequence_row.= '"",';
1719: $resource_row .= '"maximum possible",';
1720: }
1721: }
1722: if ($chosen_output->{'grand_total'}) {
1723: $sequence_row.= '"",';
1724: $resource_row.= '"Total",';
1725: }
1726: if ($chosen_output->{'grand_maximum'}) {
1727: $sequence_row.= '"",';
1728: $resource_row.= '"Maximum",';
1729: }
1730: chomp($sequence_row);
1731: chomp($resource_row);
1732: print $outputfile $sequence_row."\n";
1733: print $outputfile $resource_row."\n";
1734: return;
1735: }
1736:
1737: sub csv_outputstudent {
1738: my ($r,$student) = @_;
1739: if ($request_aborted || ! defined($navmap) || ! defined($outputfile)) {
1740: return;
1741: }
1742: my $Str = '';
1743: #
1744: # Output student fields
1745: my @to_show = &get_student_fields_to_show();
1746: foreach my $field (@to_show) {
1747: my $value = $student->{$field};
1748: if ($field eq 'comments') {
1749: $value = &Apache::lonmsgdisplay::retrieve_instructor_comments
1750: ($student->{'username'},$student->{'domain'});
1751: }
1752: $Str .= '"'.&Apache::loncommon::csv_translate($value).'",';
1753: }
1754: #
1755: # Get student assessment data
1756: my %StudentsData;
1757: my @tmp = &Apache::loncoursedata::get_current_state($student->{'username'},
1758: $student->{'domain'},
1759: undef,
1760: $env{'request.course.id'});
1761: if ((scalar @tmp > 0) && ($tmp[0] !~ /^error:/)) {
1762: %StudentsData = @tmp;
1763: }
1764: #
1765: # Output performance data
1766: my $total = 0;
1767: my $maximum = 0;
1768: foreach my $seq (@sequences) {
1769: my ($performance,$performance_length,$score,$seq_max,$rawdata);
1770: if ($chosen_output->{'tries'}){
1771: ($performance,$performance_length,$score,$seq_max,$rawdata) =
1772: &student_tries_on_sequence($student,\%StudentsData,
1773: $navmap,$seq,'no');
1774: } else {
1775: ($performance,$performance_length,$score,$seq_max,$rawdata) =
1776: &student_performance_on_sequence($student,\%StudentsData,
1777: $navmap,$seq,'no',
1778: $chosen_output->{ignore_weight});
1779: }
1780: if ($chosen_output->{'every_problem'}) {
1781: if ($chosen_output->{'correct'}) {
1782: $score = 0;
1783: # Deal with number of parts correct data
1784: $Str .= '"'.join('","',( map { if ($_>0) {
1785: $score += 1;
1786: 1;
1787: } else {
1788: 0;
1789: }
1790: } @$rawdata)).'",';
1791: } else {
1792: $Str .= '"'.join('","',(@$rawdata)).'",';
1793: }
1794: }
1795: if ($chosen_output->{'sequence_sum'}) {
1796: $Str .= '"'.$score.'",';
1797: }
1798: if ($chosen_output->{'sequence_max'}) {
1799: $Str .= '"'.$seq_max.'",';
1800: }
1801: $total+=$score;
1802: $maximum += $seq_max;
1803: }
1804: if ($chosen_output->{'grand_total'}) {
1805: $Str .= '"'.$total.'",';
1806: }
1807: if ($chosen_output->{'grand_maximum'}) {
1808: $Str .= '"'.$maximum.'",';
1809: }
1810: chop($Str);
1811: $Str .= "\n";
1812: print $outputfile $Str;
1813: #
1814: # Update the progress window
1815: &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,'last student');
1816: return;
1817: }
1818:
1819: sub csv_finish {
1820: my ($r) = @_;
1821: if ($request_aborted || ! defined($navmap) || ! defined($outputfile)) {
1822: &csv_cleanup();
1823: return;
1824: }
1825: close($outputfile);
1826: #
1827: # Close the progress window
1828: &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
1829: #
1830: # Tell the user where to get their csv file
1831: $r->print('<br />'.
1832: '<a href="'.$filename.'">'.&mt('Your CSV file.').'</a>'."\n");
1833: $r->rflush();
1834: &csv_cleanup();
1835: return;
1836:
1837: }
1838:
1839: }
1840:
1841: # This function will return an HTML string including a star, with
1842: # a mouseover popup showing the "real" value. An optional second
1843: # argument lets you show something other than a star.
1844: sub show_star {
1845: my $popup = shift;
1846: my $symbol = shift || '*';
1847: # Escape the popup for JS.
1848: $popup =~ s/([^-a-zA-Z0-9:;,._ ()|!\/?=&*])/'\\' . sprintf("%lo", ord($1))/ge;
1849:
1850: return "<span class=\"LC_chrt_popup_exists\" onmouseover='popup_score(this, \"$popup\");return false;' onmouseout='popdown_score();return false;'>$symbol</span>";
1851: }
1852:
1853: #######################################################
1854: #######################################################
1855:
1856: =pod
1857:
1858: =item &StudentTriesOnSequence()
1859:
1860: Inputs:
1861:
1862: =over 4
1863:
1864: =item $student
1865:
1866: =item $studentdata Hash ref to all student data
1867:
1868: =item $seq Hash ref, the sequence we are working on
1869:
1870: =item $links if defined we will output links to each resource.
1871:
1872: =back
1873:
1874: =cut
1875:
1876: #######################################################
1877: #######################################################
1878: sub student_tries_on_sequence {
1879: my ($student,$studentdata,$navmap,$seq,$links) = @_;
1880: $links = 'no' if (! defined($links));
1881: my $Str = '';
1882: my ($sum,$max) = (0,0);
1883: my $performance_length = 0;
1884: my @TriesData = ();
1885: my $tries;
1886: my $hasdata = 0; # flag - true if the student has any data on the sequence
1887: foreach my $resource (&get_resources($navmap,$seq)) {
1888: my $resource_data = $studentdata->{$resource->symb};
1889: my $value = '';
1890: foreach my $partnum (@{$resource->parts()}) {
1891: $tries = undef;
1892: $max++;
1893: $performance_length++;
1894: my $symbol = ' '; # default to space
1895: #
1896: my $awarded = 0;
1897: if (exists($resource_data->{'resource.'.$partnum.'.awarded'})) {
1898: $awarded = $resource_data->{'resource.'.$partnum.'.awarded'};
1899: $awarded = 0 if (! $awarded);
1900: }
1901: #
1902: my $status = '';
1903: if (exists($resource_data->{'resource.'.$partnum.'.solved'})) {
1904: $status = $resource_data->{'resource.'.$partnum.'.solved'};
1905: }
1906: #
1907: my $tries = 0;
1908: if(exists($resource_data->{'resource.'.$partnum.'.tries'})) {
1909: $tries = $resource_data->{'resource.'.$partnum.'.tries'};
1910: $hasdata =1;
1911: }
1912: #
1913: if ($awarded > 0) {
1914: # The student has gotten the problem correct to some degree
1915: if ($status eq 'excused') {
1916: $symbol = 'x';
1917: $max--;
1918: } elsif ($status eq 'correct_by_override' && !$resource->is_task()) {
1919: $symbol = '+';
1920: $sum++;
1921: } elsif ($tries > 0) {
1922: if ($tries > 9) {
1923: $symbol = show_star($tries);
1924: } else {
1925: $symbol = $tries;
1926: }
1927: $sum++;
1928: } else {
1929: $symbol = '+';
1930: $sum++;
1931: }
1932: } else {
1933: # The student has the problem incorrect or it is ungraded
1934: if ($status eq 'excused') {
1935: $symbol = 'x';
1936: $max--;
1937: } elsif ($status eq 'incorrect_by_override') {
1938: $symbol = '-';
1939: } elsif ($status eq 'ungraded_attempted') {
1940: $symbol = 'u';
1941: } elsif ($status eq 'incorrect_attempted' ||
1942: $tries > 0) {
1943: $symbol = '.';
1944: } else {
1945: # Problem is wrong and has not been attempted.
1946: $symbol=' ';
1947: }
1948: }
1949: #
1950: if (! defined($tries)) {
1951: $tries = 0;
1952: }
1953: if ($status =~ /^(incorrect|ungraded)/) {
1954: # Bug 3390: show '-' for tries on incorrect problems
1955: # (csv & excel only)
1956: push(@TriesData,-$tries);
1957: } else {
1958: push (@TriesData,$tries);
1959: }
1960: #
1961: if ( ($links eq 'yes' && $symbol ne ' ') ||
1962: ($links eq 'all')) {
1963: my $link = '/adm/grades'.
1964: '?symb='.&escape($resource->shown_symb).
1965: '&student='.$student->{'username'}.
1966: '&userdom='.$student->{'domain'}.
1967: '&command=submission';
1968: $symbol = &link($symbol, $link);
1969: }
1970: $value .= $symbol;
1971: }
1972: $Str .= $value;
1973: }
1974: if ($seq->randompick()) {
1975: $max = $seq->randompick();
1976: }
1977: if (! $hasdata && $sum == 0) {
1978: $sum = ' ';
1979: }
1980: return ($Str,$performance_length,$sum,$max,\@TriesData);
1981: }
1982:
1983: =pod
1984:
1985: =item &link
1986:
1987: Inputs:
1988:
1989: =over 4
1990:
1991: =item $text
1992:
1993: =item $target
1994:
1995: =back
1996:
1997: Takes the text and creates a link to the $text that honors
1998: the value of 'new window' if clicked on, but uses a real
1999: 'href' so middle and right clicks still work.
2000:
2001: $target and $text are assumed to be already correctly escaped; i.e., it
2002: can be dumped out directly into the output stream as-is.
2003:
2004: =cut
2005:
2006: sub link {
2007: my ($text,$target) = @_;
2008: return
2009: "<a href='$target' onclick=\"t=this.href;if(new_window)"
2010: ."{window.open(t)}else{return void(window."
2011: ."location=t)};return false;\">$text</a>";
2012: }
2013:
2014: #######################################################
2015: #######################################################
2016:
2017: =pod
2018:
2019: =item &student_performance_on_sequence
2020:
2021: Inputs:
2022:
2023: =over 4
2024:
2025: =item $student
2026:
2027: =item $studentdata Hash ref to all student data
2028:
2029: =item $seq Hash ref, the sequence we are working on
2030:
2031: =item $links if defined we will output links to each resource.
2032:
2033: =back
2034:
2035: =cut
2036:
2037: #######################################################
2038: #######################################################
2039: sub student_performance_on_sequence {
2040: my ($student,$studentdata,$navmap,$seq,$links,$awarded_only) = @_;
2041: $links = 'no' if (! defined($links));
2042: my $Str = ''; # final result string
2043: my ($score,$max) = (0,0);
2044: my $performance_length = 0;
2045: my $symbol;
2046: my @ScoreData = ();
2047: my $partscore;
2048: my $hasdata = 0; # flag, 0 if there were no submissions on the sequence
2049: foreach my $resource (&get_resources($navmap,$seq)) {
2050: my $symb = $resource->symb;
2051: my $resource_data = $studentdata->{$symb};
2052: foreach my $part (@{$resource->parts()}) {
2053: $partscore = undef;
2054: my $weight;
2055: if (!$awarded_only){
2056: $weight = &Apache::lonnet::EXT('resource.'.$part.'.weight',
2057: $symb,
2058: $student->{'domain'},
2059: $student->{'username'},
2060: $student->{'section'});
2061: }
2062: if (!defined($weight) || ($weight eq '')) {
2063: $weight=1;
2064: }
2065: #
2066: $max += $weight; # see the 'excused' branch below...
2067: $performance_length++; # one character per part
2068: $symbol = ' '; # default to space
2069: #
2070: my $awarded;
2071: if (exists($resource_data->{'resource.'.$part.'.awarded'})) {
2072: $awarded = $resource_data->{'resource.'.$part.'.awarded'};
2073: $awarded = 0 if (! $awarded);
2074: $hasdata = 1;
2075: }
2076: #
2077: $partscore = &Apache::grades::compute_points($weight,$awarded);
2078: if (! defined($awarded)) {
2079: $partscore = undef;
2080: }
2081: $score += $partscore;
2082: $symbol = $partscore;
2083: if (abs($symbol - sprintf("%.0f",$symbol)) < 0.001) {
2084: $symbol = sprintf("%.0f",$symbol);
2085: }
2086: if (length($symbol) > 1) {
2087: $symbol = show_star($symbol);
2088: }
2089: if (exists($resource_data->{'resource.'.$part.'.solved'}) &&
2090: $resource_data->{'resource.'.$part.'.solved'} ne '') {
2091: my $status = $resource_data->{'resource.'.$part.'.solved'};
2092: if ($status eq 'excused') {
2093: $symbol = 'x';
2094: $max -= $weight; # Do not count 'excused' problems.
2095: } elsif ($status eq 'ungraded_attempted') {
2096: $symbol = 'u';
2097: }
2098: $hasdata = 1;
2099: } elsif ($resource_data->{'resource.'.$part.'.award'} eq 'DRAFT') {
2100: $symbol = 'd';
2101: $hasdata = 1;
2102: } elsif (!exists($resource_data->{'resource.'.$part.'.awarded'})){
2103: # Unsolved. Did they try?
2104: if (exists($resource_data->{'resource.'.$part.'.tries'})){
2105: $symbol = '.';
2106: $hasdata = 1;
2107: } else {
2108: $symbol = ' ';
2109: }
2110: }
2111: #
2112: if (! defined($partscore)) {
2113: $partscore = $symbol;
2114: }
2115: push (@ScoreData,$partscore);
2116: #
2117: if ( ($links eq 'yes' && $symbol ne ' ') || ($links eq 'all')) {
2118: my $link = '/adm/grades' .
2119: '?symb='.&escape($resource->shown_symb).
2120: '&student='.$student->{'username'}.
2121: '&userdom='.$student->{'domain'}.
2122: '&command=submission';
2123: $symbol = &link($symbol, $link);
2124: }
2125: $Str .= $symbol;
2126: }
2127: }
2128: if (! $hasdata && $score == 0) {
2129: $score = ' ';
2130: }
2131: return ($Str,$performance_length,$score,$max,\@ScoreData);
2132: }
2133:
2134: #######################################################
2135: #######################################################
2136:
2137: =pod
2138:
2139: =item &CreateLegend()
2140:
2141: This function returns a formatted string containing the legend for the
2142: chart. The legend describes the symbols used to represent grades for
2143: problems.
2144:
2145: =cut
2146:
2147: #######################################################
2148: #######################################################
2149: sub CreateLegend {
2150: my $Str = "<p><pre>".
2151: " digit score or number of tries to get correct ".
2152: " * correct by student in more than 9 tries\n".
2153: " + correct by hand grading or override\n".
2154: " - incorrect by override\n".
2155: " . incorrect attempted\n".
2156: " u ungraded attempted\n".
2157: " d draft answer saved but not submitted\n".
2158: " not attempted (blank field)\n".
2159: " x excused".
2160: "</pre><p>";
2161: return $Str;
2162: }
2163:
2164: #######################################################
2165: #######################################################
2166:
2167: =pod
2168:
2169: =back
2170:
2171: =cut
2172:
2173: #######################################################
2174: #######################################################
2175:
2176: 1;
2177:
2178: __END__
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>