1: # The LearningOnline Network with CAPA
2: #
3: # $Id: lonstudentassessment.pm,v 1.158 2009/10/01 16:28:24 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: $r->print(<<NEW_WINDOW_CHECKBOX);
676: <script type="text/javascript">new_window = true;</script>
677: <p><label>$labeltext
678: <input type="checkbox" checked="checked" onclick="new_window=this.checked" />
679: </label></p>
680: NEW_WINDOW_CHECKBOX
681: }
682:
683: #
684: $r->print("<h3>".$env{'course.'.$env{'request.course.id'}.'.description'}.
685: " ".&Apache::lonlocal::locallocaltime(time)."</h3>");
686: #
687: if ($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 6 digits for the sum
717: $width{$symb}->{'width_sum'} += 6;
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 6 digits for the total
726: $width{$symb}->{'width_sum'}+=6;
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: $r->print('</pre>');
830: &Apache::lonhtmlcommon::Increment_PrgWin(
831: $r,\%prog_state,'last five students');
832: $r->rflush();
833: $r->print('<pre>');
834: }
835: # First, the @StudentData fields need to be listed
836: my @to_show = &get_student_fields_to_show();
837: foreach my $field (@to_show) {
838: my $title=$student->{$field};
839: # Deal with 'comments' - how I love special cases
840: if ($field eq 'comments') {
841: $title = '<a href="/adm/'.$student->{'domain'}.'/'.$student->{'username'}.'/'.'aboutme#coursecomment">'.&mt('Comments').'</a>';
842: }
843: my $base = length($title);
844: my $width=$Apache::lonstatistics::StudentData{$field}->{'width'};
845: $Str .= $title.' 'x($width-$base).$padding;
846: }
847: # Get ALL the students data
848: my %StudentsData;
849: my @tmp = &Apache::loncoursedata::get_current_state
850: ($student->{'username'},$student->{'domain'},undef,
851: $env{'request.course.id'});
852: if ((scalar @tmp > 0) && ($tmp[0] !~ /^error:(.*)/)) {
853: %StudentsData = @tmp;
854: } else {
855: my $error = $1;
856: if (scalar(@tmp) < 1) {
857: $Str .= '<span class="LC_warning">'
858: .&mt('No Course Data')
859: .'</span>'."\n";
860: } else {
861: $Str .= '<span class="LC_error">'
862: .&mt('Error getting student data ([_1])',$error)
863: .'</span>'."\n";
864: }
865: $nodata_count++;
866: $r->print($Str);
867: $r->rflush();
868: return;
869: }
870: #
871: # By sequence build up the data
872: my $studentstats;
873: my $PerformanceStr = '';
874: foreach my $seq (@sequences) {
875: my $symb = $seq->symb;
876: my ($performance,$performance_length,$score,$seq_max,$rawdata);
877: if ($chosen_output->{'tries'}) {
878: ($performance,$performance_length,$score,$seq_max,$rawdata) =
879: &student_tries_on_sequence($student,\%StudentsData,
880: $navmap,$seq,$show_links);
881: } else {
882: ($performance,$performance_length,$score,$seq_max,$rawdata) =
883: &student_performance_on_sequence($student,\%StudentsData,
884: $navmap,$seq,$show_links,
885: $chosen_output->{ignore_weight});
886: }
887: my $ratio='';
888: if ($chosen_output->{'every_problem'} &&
889: $chosen_output->{'sequence_sum'}) {
890: $ratio .= ' ';
891: }
892: if ($chosen_output->{'sequence_sum'} && $score ne ' ') {
893: my $score .= sprintf("%3.2f",$score);
894: $ratio .= (' 'x(6-length($score))).$score;
895: } elsif($chosen_output->{'sequence_sum'}) {
896: $ratio .= ' 'x6;
897: }
898: if ($chosen_output->{'sequence_max'}) {
899: if ($chosen_output->{'sequence_sum'}) {
900: $ratio .= '/';
901: }
902: my $sequence_total=sprintf("%3.2f",$seq_max);
903: $ratio .= $sequence_total.(' 'x(6-length($sequence_total)));
904: }
905: #
906: if (! $chosen_output->{'every_problem'}) {
907: $performance = '';
908: $performance_length=0;
909: }
910: $performance .= ' 'x($width{$symb}->{'width_total'} -
911: $performance_length -
912: $width{$symb}->{'width_sum'}).
913: $ratio;
914: #
915: $Str .= $performance.$padding;
916: #
917: $studentstats->{$symb}->{'score'}= $score;
918: $studentstats->{$symb}->{'max'} = $seq_max;
919: }
920: #
921: # Total it up and store the statistics info.
922: my ($score,$max);
923: while (my ($symb,$seq_stats) = each (%{$studentstats})) {
924: $Statistics->{$symb}->{'score'} += $seq_stats->{'score'};
925: if ($Statistics->{$symb}->{'max'} < $seq_stats->{'max'}) {
926: $Statistics->{$symb}->{'max'} = $seq_stats->{'max'};
927: }
928: if ($seq_stats->{'score'} ne ' ') {
929: $score += $seq_stats->{'score'};
930: $Statistics->{$symb}->{'num_students'}++;
931: }
932: $max += $seq_stats->{'max'};
933: }
934: if (! defined($score)) {
935: $score = ' ' x $total_sum_width;
936: } else {
937: $score = sprintf("%.2f",$score);
938: $score = (' 'x(6-length($score))).$score;
939: }
940: $Str .= ' '.' 'x($total_sum_width-length($score)).$score.' / '.$max;
941: $Str .= " \n";
942: #
943: $r->print($Str);
944: #
945: # $r->rflush();
946: # &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,'last student');
947: return;
948: }
949:
950: sub html_finish {
951: my ($r) = @_;
952: return if (! defined($navmap));
953: #
954: # Check for suppressed output and close the progress window if so
955: $r->print("</pre>\n");
956: if ($chosen_output->{'summary_table'}) {
957: if ($single_student_mode) {
958: $r->print(&SingleStudentTotal());
959: } else {
960: $r->print(&StudentAverageTotal());
961: }
962: }
963: $r->rflush();
964: &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
965: &html_cleanup();
966: return;
967: }
968:
969: sub StudentAverageTotal {
970: my $Str = '<h3>'.&mt('Summary Tables').'</h3>'.$/;
971: $Str .= &Apache::loncommon::start_data_table();
972: $Str .= &Apache::loncommon::start_data_table_header_row().
973: '<th>'.&mt('Title').'</th>'.
974: '<th>'.&mt('Average').'</th>'.
975: '<th>'.&mt('Maximum').'</th>'.
976: &Apache::loncommon::end_data_table_header_row().$/;
977: foreach my $seq (@sequences) {
978: my $symb = $seq->symb;
979: my $ave;
980: my $num_students = $Statistics->{$symb}->{'num_students'};
981: if ($num_students > 0) {
982: $ave = int(100*
983: ($Statistics->{$symb}->{'score'}/$num_students)
984: )/100;
985: } else {
986: $ave = 0;
987: }
988: my $max = $Statistics->{$symb}->{'max'};
989: $ave = sprintf("%.2f",$ave);
990: $Str .= &Apache::loncommon::start_data_table_row().
991: '<td>'.$seq->compTitle.'</td>'.
992: '<td align="right">'.$ave.' </td>'.
993: '<td align="right">'.$max.' '.'</td>'.
994: &Apache::loncommon::end_data_table_row()."\n";
995: }
996: $Str .= &Apache::loncommon::end_data_table()."\n";
997: return $Str;
998: }
999:
1000: sub SingleStudentTotal {
1001: return if (! defined($navmap));
1002: my $student = &Apache::lonstatistics::current_student();
1003: my $Str = '<h3>'.&mt('Summary table for [_1] ([_2])',
1004: $student->{'fullname'},
1005: $student->{'username'}.':'.$student->{'domain'}).'</h3>';
1006: $Str .= $/;
1007: $Str .= &Apache::loncommon::start_data_table()."\n";
1008: $Str .=
1009: &Apache::loncommon::start_data_table_header_row().
1010: '<th>'.&mt('Sequence or Folder').'</th>';
1011: if ($chosen_output->{'base'} eq 'tries') {
1012: $Str .= '<th>'.&mt('Parts Correct').'</th>';
1013: } else {
1014: $Str .= '<th>'.&mt('Score').'</th>';
1015: }
1016: $Str .= '<th>'.&mt('Maximum').'</th>'.
1017: &Apache::loncommon::end_data_table_header_row()."\n";
1018: my $total = 0;
1019: my $total_max = 0;
1020: foreach my $seq (@sequences) {
1021: my $value = $Statistics->{$seq->symb}->{'score'};
1022: my $max = $Statistics->{$seq->symb}->{'max'};
1023: $Str .= &Apache::loncommon::start_data_table_row().
1024: '<td>'.&HTML::Entities::encode($seq->compTitle).'</td>'.
1025: '<td align="right">'.$value.'</td>'.
1026: '<td align="right">'.$max.'</td>'.
1027: &Apache::loncommon::end_data_table_row()."\n";
1028: $total += $value;
1029: $total_max +=$max;
1030: }
1031: $Str .= &Apache::loncommon::start_data_table_row().
1032: '<td><b>'.&mt('Total').'</b></td>'.
1033: '<td align="right">'.$total.'</td>'.
1034: '<td align="right">'.$total_max.'</td>'.
1035: &Apache::loncommon::end_data_table_row()."\n";
1036: $Str .= &Apache::loncommon::end_data_table()."\n";
1037: return $Str;
1038: }
1039:
1040: }
1041:
1042: #######################################################
1043: #######################################################
1044:
1045: =pod
1046:
1047: =head2 EXCEL subroutines
1048:
1049: =item &excel_initialize($r)
1050:
1051: =item &excel_outputstudent($r,$student)
1052:
1053: =item &excel_finish($r)
1054:
1055: =cut
1056:
1057: #######################################################
1058: #######################################################
1059: {
1060:
1061: my $excel_sheet;
1062: my $excel_workbook;
1063: my $format;
1064:
1065: my $filename;
1066: my $rows_output;
1067: my $cols_output;
1068:
1069: my %prog_state; # progress window state
1070: my $request_aborted;
1071:
1072: my $total_formula;
1073: my $maximum_formula;
1074: my %formula_data;
1075:
1076: my $navmap;
1077: my @sequences;
1078:
1079: sub excel_cleanup {
1080: #
1081: undef ($excel_sheet);
1082: undef ($excel_workbook);
1083: undef ($filename);
1084: undef ($rows_output);
1085: undef ($cols_output);
1086: undef (%prog_state);
1087: undef ($request_aborted);
1088: undef ($total_formula);
1089: undef ($maximum_formula);
1090: #
1091: undef(%formula_data);
1092: #
1093: undef($navmap);
1094: undef(@sequences);
1095: }
1096:
1097: sub excel_initialize {
1098: my ($r) = @_;
1099:
1100: &excel_cleanup();
1101: ($navmap,@sequences) =
1102: &Apache::lonstatistics::selected_sequences_with_assessments();
1103: if (! ref($navmap)) {
1104: # Unable to get data, so bail out
1105: $r->print("<h3>".
1106: &mt('Unable to retrieve course information.').
1107: '</h3>');
1108: }
1109: #
1110: my $total_columns = scalar(&get_student_fields_to_show());
1111: my $num_students = scalar(@Apache::lonstatistics::Students);
1112: #
1113: foreach my $seq (@sequences) {
1114: if ($chosen_output->{'every_problem'}) {
1115: $total_columns+=&count_parts($navmap,$seq);
1116: }
1117: # Add 2 because we need a 'sequence_sum' and 'total' column for each
1118: $total_columns += 2;
1119: }
1120: my $too_many_cols_error_message =
1121: '<h2>'.&mt('Unable to Complete Request').'</h2>'.$/.
1122: '<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>'.$/.
1123: '<p>'.&mt('You may consider reducing the number of <b>Sequences or Folders</b> you have selected.').'</p>'.$/.
1124: '<p>'.&mt('LON-CAPA can produce <b>CSV</b> files of this data or Excel files of the <b>Scores Summary</b> data.').'</p>'.$/;
1125: if ($chosen_output->{'base'} eq 'tries' && $total_columns > 255) {
1126: $r->print($too_many_cols_error_message);
1127: $request_aborted = 1;
1128: }
1129: if ($chosen_output->{'base'} eq 'scores' && $total_columns > 255) {
1130: $r->print($too_many_cols_error_message);
1131: $request_aborted = 1;
1132: }
1133: return if ($request_aborted);
1134: #
1135: #
1136: $excel_workbook = undef;
1137: $excel_sheet = undef;
1138: #
1139: $rows_output = 0;
1140: $cols_output = 0;
1141: #
1142: # Determine rows
1143: my $header_row = $rows_output++;
1144: my $description_row = $rows_output++;
1145: my $notes_row = $rows_output++;
1146: $rows_output++; # blank row
1147: my $summary_header_row;
1148: if ($chosen_output->{'summary_table'}) {
1149: $summary_header_row = $rows_output++;
1150: $rows_output+= scalar(@sequences);
1151: $rows_output++;
1152: }
1153: my $sequence_name_row = $rows_output++;
1154: my $resource_name_row = $rows_output++;
1155: my $maximum_data_row = $rows_output++;
1156: if (! $chosen_output->{'maximum_row'}) {
1157: $rows_output--;
1158: }
1159: my $first_data_row = $rows_output++;
1160: #
1161: # Create sheet
1162: ($excel_workbook,$filename,$format)=
1163: &Apache::loncommon::create_workbook($r);
1164: return if (! defined($excel_workbook));
1165: #
1166: # Add a worksheet
1167: my $sheetname = $env{'course.'.$env{'request.course.id'}.'.description'};
1168: $sheetname = &Apache::loncommon::clean_excel_name($sheetname);
1169: $excel_sheet = $excel_workbook->addworksheet($sheetname);
1170: #
1171: # Put the course description in the header
1172: $excel_sheet->write($header_row,$cols_output++,
1173: $env{'course.'.$env{'request.course.id'}.'.description'},
1174: $format->{'h1'});
1175: $cols_output += 3;
1176: #
1177: # Put a description of the sections listed
1178: my $sectionstring = '';
1179: my @Sections = &Apache::lonstatistics::get_selected_sections();
1180: $excel_sheet->write($header_row,$cols_output++,
1181: &Apache::lonstatistics::section_and_enrollment_description('plaintext'),
1182: $format->{'h3'});
1183: #
1184: # Put the date in there too
1185: $excel_sheet->write($header_row,$cols_output++,
1186: &mt('Compiled on [_1]',&Apache::lonlocal::locallocaltime(time)),$format->{'h3'});
1187: #
1188: $cols_output = 0;
1189: $excel_sheet->write($description_row,$cols_output++,
1190: &mt($chosen_output->{'shortdesc'}),
1191: $format->{'b'});
1192: #
1193: $cols_output = 0;
1194: $excel_sheet->write($notes_row,$cols_output++,
1195: $chosen_output->{'non_html_notes'},
1196: $format->{'i'});
1197:
1198: ##############################################
1199: # Output headings for the raw data
1200: ##############################################
1201: #
1202: # Add the student headers
1203: $cols_output = 0;
1204: foreach my $field (&get_student_fields_to_show()) {
1205: $excel_sheet->write($resource_name_row,$cols_output++,$field,
1206: $format->{'bold'});
1207: }
1208: #
1209: # Add the remaining column headers
1210: my $total_formula_string = '=0';
1211: my $maximum_formula_string = '=0';
1212: foreach my $seq (@sequences) {
1213: my $symb = $seq->symb;
1214: $excel_sheet->write($sequence_name_row,,
1215: $cols_output,$seq->compTitle,$format->{'bold'});
1216: # Determine starting cell
1217: $formula_data{$symb}->{'Excel:startcell'}=
1218: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1219: ($first_data_row,$cols_output);
1220: $formula_data{$symb}->{'Excel:startcol'}=$cols_output;
1221: my $count = 0;
1222: if ($chosen_output->{'every_problem'}) {
1223: # Put the names of the problems and parts into the sheet
1224: foreach my $res (&get_resources($navmap,$seq)) {
1225: if (scalar(@{$res->parts}) > 1) {
1226: foreach my $part (@{$res->parts}) {
1227: $excel_sheet->write($resource_name_row,
1228: $cols_output++,
1229: $res->compTitle.' part '.$res->part_display($part),
1230: $format->{'bold'});
1231: $count++;
1232: }
1233: } else {
1234: $excel_sheet->write($resource_name_row,
1235: $cols_output++,
1236: $res->compTitle,$format->{'bold'});
1237: $count++;
1238: }
1239: }
1240: }
1241: # Determine ending cell
1242: if ($count <= 1) {
1243: $formula_data{$symb}->{'Excel:endcell'} = $formula_data{$symb}->{'Excel:startcell'};
1244: $formula_data{$symb}->{'Excel:endcol'} = $formula_data{$symb}->{'Excel:startcol'};
1245: } else {
1246: $formula_data{$symb}->{'Excel:endcell'} =
1247: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1248: ($first_data_row,$cols_output-1);
1249: $formula_data{$symb}->{'Excel:endcol'} = $cols_output-1;
1250: }
1251: # Create the formula for summing up this sequence
1252: if (! exists($formula_data{$symb}->{'Excel:endcell'}) ||
1253: ! defined($formula_data{$symb}->{'Excel:endcell'})) {
1254: $formula_data{$symb}->{'Excel:endcell'} = $formula_data{$symb}->{'Excel:startcell'};
1255: }
1256:
1257: my $start = $formula_data{$symb}->{'Excel:startcell'};
1258: my $end = $formula_data{$symb}->{'Excel:endcell'};
1259: $formula_data{$symb}->{'Excel:sum'}= $excel_sheet->store_formula
1260: ("=IF(COUNT($start\:$end),SUM($start\:$end),\"\")");
1261: # Determine cell the score is held in
1262: $formula_data{$symb}->{'Excel:scorecell'} =
1263: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1264: ($first_data_row,$cols_output);
1265: $formula_data{$symb}->{'Excel:scorecol'}=$cols_output;
1266: if ($chosen_output->{'base'} eq 'parts correct total') {
1267: $excel_sheet->write($resource_name_row,$cols_output++,
1268: &mt('parts correct'),
1269: $format->{'bold'});
1270: } elsif ($chosen_output->{'sequence_sum'}) {
1271: if ($chosen_output->{'correct'}) {
1272: # Only reporting the number correct, so do not call it score
1273: $excel_sheet->write($resource_name_row,$cols_output++,
1274: &mt('sum'),
1275: $format->{'bold'});
1276: } else {
1277: $excel_sheet->write($resource_name_row,$cols_output++,
1278: &mt('score'),
1279: $format->{'bold'});
1280: }
1281: }
1282: #
1283: $total_formula_string.='+'.
1284: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1285: ($first_data_row,$cols_output-1);
1286: if ($chosen_output->{'sequence_max'}) {
1287: $excel_sheet->write($resource_name_row,$cols_output,
1288: &mt('maximum'),
1289: $format->{'bold'});
1290: $formula_data{$symb}->{'Excel:maxcell'} =
1291: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1292: ($first_data_row,$cols_output);
1293: $formula_data{$symb}->{'Excel:maxcol'}=$cols_output;
1294: $maximum_formula_string.='+'.
1295: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1296: ($first_data_row,$cols_output);
1297: $cols_output++;
1298:
1299: }
1300: }
1301: if ($chosen_output->{'grand_total'}) {
1302: $excel_sheet->write($resource_name_row,$cols_output++,&mt('Total'),
1303: $format->{'bold'});
1304: }
1305: if ($chosen_output->{'grand_maximum'}) {
1306: $excel_sheet->write($resource_name_row,$cols_output++,&mt('Max. Total'),
1307: $format->{'bold'});
1308: }
1309: $total_formula = $excel_sheet->store_formula($total_formula_string);
1310: $maximum_formula = $excel_sheet->store_formula($maximum_formula_string);
1311: ##############################################
1312: # Output a row for MAX, if appropriate
1313: ##############################################
1314: if ($chosen_output->{'maximum_row'}) {
1315: $cols_output = 0;
1316: foreach my $field (&get_student_fields_to_show()) {
1317: if ($field eq 'username' || $field eq 'fullname' ||
1318: $field eq 'id') {
1319: $excel_sheet->write($maximum_data_row,$cols_output++,'Maximum',
1320: $format->{'bold'});
1321: } else {
1322: $excel_sheet->write($maximum_data_row,$cols_output++,'');
1323: }
1324: }
1325: #
1326: # Add the maximums for each sequence or assessment
1327: my %total_cell_translation;
1328: my %maximum_cell_translation;
1329: foreach my $seq (@sequences) {
1330: my $symb = $seq->symb;
1331: $cols_output=$formula_data{$symb}->{'Excel:startcol'};
1332: $total_cell_translation{$formula_data{$symb}->{'Excel:scorecell'}}=
1333: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1334: ($maximum_data_row,$formula_data{$symb}->{'Excel:scorecol'});
1335: $maximum_cell_translation{$formula_data{$symb}->{'Excel:maxcell'}}=
1336: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1337: ($maximum_data_row,$formula_data{$symb}->{'Excel:maxcol'});
1338: my $weight;
1339: my $max = 0;
1340: foreach my $resource (&get_resources($navmap,$seq)) {
1341: foreach my $part (@{$resource->parts}){
1342: $weight = 1;
1343: if ($chosen_output->{'scores'}) {
1344: $weight = &Apache::lonnet::EXT
1345: ('resource.'.$part.'.weight',$resource->symb,
1346: undef,undef,undef);
1347: if (!defined($weight) || ($weight eq '')) {
1348: $weight=1;
1349: }
1350: }
1351: if ($chosen_output->{'scores'} &&
1352: $chosen_output->{'every_problem'}) {
1353: $excel_sheet->write($maximum_data_row,$cols_output++,
1354: $weight);
1355: }
1356: $max += $weight;
1357: }
1358: }
1359: #
1360: if ($chosen_output->{'sequence_sum'} &&
1361: $chosen_output->{'every_problem'}) {
1362: my %replaceCells=
1363: ('^'.$formula_data{$symb}->{'Excel:startcell'}.':'.
1364: $formula_data{$symb}->{'Excel:endcell'}.'$' =>
1365: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell($maximum_data_row,$formula_data{$symb}->{'Excel:startcol'}).':'.
1366: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell($maximum_data_row,$formula_data{$symb}->{'Excel:endcol'}));
1367: $excel_sheet->repeat_formula($maximum_data_row,$cols_output++,
1368: $formula_data{$symb}->{'Excel:sum'},undef,
1369: %replaceCells, %replaceCells);
1370:
1371: } elsif ($chosen_output->{'sequence_sum'}) {
1372: $excel_sheet->write($maximum_data_row,$cols_output++,$max);
1373: }
1374: if ($chosen_output->{'sequence_max'}) {
1375: $excel_sheet->write($maximum_data_row,$cols_output++,$max);
1376: }
1377: #
1378: }
1379: if ($chosen_output->{'grand_total'}) {
1380: $excel_sheet->repeat_formula($maximum_data_row,$cols_output++,
1381: $total_formula,undef,
1382: %total_cell_translation);
1383: }
1384: if ($chosen_output->{'grand_maximum'}) {
1385: $excel_sheet->repeat_formula($maximum_data_row,$cols_output++,
1386: $maximum_formula,undef,
1387: %maximum_cell_translation);
1388: }
1389: } # End of MAXIMUM row output if ($chosen_output->{'maximum_row'}) {
1390: $rows_output = $first_data_row;
1391: ##############################################
1392: # Output summary table, which actually is above the sequence name row.
1393: ##############################################
1394: if ($chosen_output->{'summary_table'}) {
1395: $cols_output = 0;
1396: $excel_sheet->write($summary_header_row,$cols_output++,
1397: &mt('Summary Table'),$format->{'bold'});
1398: if ($chosen_output->{'maximum_row'}) {
1399: $excel_sheet->write($summary_header_row,$cols_output++,
1400: &mt('Maximum'),$format->{'bold'});
1401: }
1402: $excel_sheet->write($summary_header_row,$cols_output++,
1403: &mt('Average'),$format->{'bold'});
1404: $excel_sheet->write($summary_header_row,$cols_output++,
1405: &mt('Median'),$format->{'bold'});
1406: $excel_sheet->write($summary_header_row,$cols_output++,
1407: &mt('Std Dev'),$format->{'bold'});
1408: my $row = $summary_header_row+1;
1409: foreach my $seq (@sequences) {
1410: my $symb = $seq->symb;
1411: $cols_output = 0;
1412: $excel_sheet->write($row,$cols_output++,
1413: $seq->compTitle,
1414: $format->{'bold'});
1415: if ($chosen_output->{'maximum_row'}) {
1416: $excel_sheet->write
1417: ($row,$cols_output++,
1418: '='.
1419: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1420: ($maximum_data_row,$formula_data{$symb}->{'Excel:scorecol'})
1421: );
1422: }
1423: my $range =
1424: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1425: ($first_data_row,$formula_data{$symb}->{'Excel:scorecol'}).
1426: ':'.
1427: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1428: ($first_data_row+$num_students-1,$formula_data{$symb}->{'Excel:scorecol'});
1429: $excel_sheet->write($row,$cols_output++,
1430: '=AVERAGE('.$range.')');
1431: $excel_sheet->write($row,$cols_output++,
1432: '=MEDIAN('.$range.')');
1433: $excel_sheet->write($row,$cols_output++,
1434: '=STDEV('.$range.')');
1435: $row++;
1436: }
1437: }
1438: ##############################################
1439: # Take care of non-excel initialization
1440: ##############################################
1441: #
1442: # Let the user know what we are doing
1443: my $studentcount = scalar(@Apache::lonstatistics::Students);
1444: if ($env{'form.SelectedStudent'}) {
1445: $studentcount = '1';
1446: }
1447: $r->print('<p>'
1448: .&mt('Compiling Excel spreadsheet for [quant,_1,student]...',$studentcount)
1449: ."</p>\n"
1450: );
1451: $r->rflush();
1452: #
1453: # Initialize progress window
1454: %prog_state=&Apache::lonhtmlcommon::Create_PrgWin
1455: ($r,'Excel File Compilation Status',
1456: 'Excel File Compilation Progress', $studentcount,
1457: 'inline',undef,'Statistics','stats_status');
1458: #
1459: &Apache::lonhtmlcommon::Update_PrgWin($r,\%prog_state,
1460: 'Processing first student');
1461: return;
1462: }
1463:
1464: sub excel_outputstudent {
1465: my ($r,$student) = @_;
1466: if ($request_aborted || ! defined($navmap) || ! defined($excel_sheet)) {
1467: return;
1468: }
1469: $cols_output=0;
1470: #
1471: # Write out student data
1472: my @to_show = &get_student_fields_to_show();
1473: foreach my $field (@to_show) {
1474: my $value = $student->{$field};
1475: if ($field eq 'comments') {
1476: $value = &Apache::lonmsgdisplay::retrieve_instructor_comments
1477: ($student->{'username'},$student->{'domain'});
1478: }
1479: $excel_sheet->write($rows_output,$cols_output++,$value);
1480: }
1481: #
1482: # Get student assessment data
1483: my %StudentsData;
1484: my @tmp = &Apache::loncoursedata::get_current_state($student->{'username'},
1485: $student->{'domain'},
1486: undef,
1487: $env{'request.course.id'});
1488: if ((scalar @tmp > 0) && ($tmp[0] !~ /^error:/)) {
1489: %StudentsData = @tmp;
1490: }
1491: #
1492: # Write out sequence scores and totals data
1493: my %total_cell_translation;
1494: my %maximum_cell_translation;
1495: foreach my $seq (@sequences) {
1496: my $symb = $seq->symb;
1497: $cols_output = $formula_data{$symb}->{'Excel:startcol'};
1498: # Keep track of cells to translate in total cell
1499: $total_cell_translation{$formula_data{$symb}->{'Excel:scorecell'}} =
1500: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1501: ($rows_output,$formula_data{$symb}->{'Excel:scorecol'});
1502: # and maximum cell
1503: $maximum_cell_translation{$formula_data{$symb}->{'Excel:maxcell'}} =
1504: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1505: ($rows_output,$formula_data{$symb}->{'Excel:maxcol'});
1506: #
1507: my ($performance,$performance_length,$score,$seq_max,$rawdata);
1508: if ($chosen_output->{'tries'} || $chosen_output->{'correct'}){
1509: ($performance,$performance_length,$score,$seq_max,$rawdata) =
1510: &student_tries_on_sequence($student,\%StudentsData,
1511: $navmap,$seq,'no');
1512: } else {
1513: ($performance,$performance_length,$score,$seq_max,$rawdata) =
1514: &student_performance_on_sequence($student,\%StudentsData,
1515: $navmap,$seq,'no',
1516: $chosen_output->{ignore_weight});
1517: }
1518: if ($chosen_output->{'every_problem'}) {
1519: if ($chosen_output->{'correct'}) {
1520: # only indiciate if each item is correct or not
1521: foreach my $value (@$rawdata) {
1522: # positive means correct, 0 or negative means
1523: # incorrect
1524: $value = $value > 0 ? 1 : 0;
1525: $excel_sheet->write($rows_output,$cols_output++,$value);
1526: }
1527: } else {
1528: foreach my $value (@$rawdata) {
1529: if ($score eq ' ' || !defined($value)) {
1530: $cols_output++;
1531: } else {
1532: $excel_sheet->write($rows_output,$cols_output++,
1533: $value);
1534: }
1535: }
1536: }
1537: }
1538: if ($chosen_output->{'sequence_sum'} &&
1539: $chosen_output->{'every_problem'}) {
1540: # Write a formula for the sum of this sequence
1541: my %replaceCells=
1542: ('^'.$formula_data{$symb}->{'Excel:startcell'}.':'.$formula_data{$symb}->{'Excel:endcell'}.'$'
1543: =>
1544: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell($rows_output,$formula_data{$symb}->{'Excel:startcol'}).':'.
1545: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell($rows_output,$formula_data{$symb}->{'Excel:endcol'})
1546: );
1547: # The undef is for the format
1548: $excel_sheet->repeat_formula($rows_output,$cols_output++,
1549: $formula_data{$symb}->{'Excel:sum'},undef,
1550: %replaceCells, %replaceCells);
1551: } elsif ($chosen_output->{'sequence_sum'}) {
1552: if ($score eq ' ') {
1553: $cols_output++;
1554: } else {
1555: $excel_sheet->write($rows_output,$cols_output++,$score);
1556: }
1557: }
1558: if ($chosen_output->{'sequence_max'}) {
1559: $excel_sheet->write($rows_output,$cols_output++,$seq_max);
1560: }
1561: }
1562: #
1563: if ($chosen_output->{'grand_total'}) {
1564: $excel_sheet->repeat_formula($rows_output,$cols_output++,
1565: $total_formula,undef,
1566: %total_cell_translation);
1567: }
1568: if ($chosen_output->{'grand_maximum'}) {
1569: $excel_sheet->repeat_formula($rows_output,$cols_output++,
1570: $maximum_formula,undef,
1571: %maximum_cell_translation);
1572: }
1573: #
1574: # Bookkeeping
1575: $rows_output++;
1576: $cols_output=0;
1577: #
1578: # Update the progress window
1579: &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,'last student');
1580: return;
1581: }
1582:
1583: sub excel_finish {
1584: my ($r) = @_;
1585: if ($request_aborted || ! defined($navmap) || ! defined($excel_sheet)) {
1586: &excel_cleanup();
1587: return;
1588: }
1589: #
1590: # Write the excel file
1591: $excel_workbook->close();
1592: #
1593: # Close the progress window
1594: &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
1595: #
1596: # Tell the user where to get their excel file
1597: $r->print('<br />'.
1598: '<a href="'.$filename.'">'.&mt('Your Excel spreadsheet').'</a>'."\n");
1599: $r->rflush();
1600: &excel_cleanup();
1601: return;
1602: }
1603:
1604: }
1605: #######################################################
1606: #######################################################
1607:
1608: =pod
1609:
1610: =head2 CSV output routines
1611:
1612: =item &csv_initialize($r)
1613:
1614: =item &csv_outputstudent($r,$student)
1615:
1616: =item &csv_finish($r)
1617:
1618: =cut
1619:
1620: #######################################################
1621: #######################################################
1622: {
1623:
1624: my $outputfile;
1625: my $filename;
1626: my $request_aborted;
1627: my %prog_state; # progress window state
1628: my $navmap;
1629: my @sequences;
1630:
1631: sub csv_cleanup {
1632: undef($outputfile);
1633: undef($filename);
1634: undef($request_aborted);
1635: undef(%prog_state);
1636: #
1637: undef($navmap);
1638: undef(@sequences);
1639: }
1640:
1641: sub csv_initialize{
1642: my ($r) = @_;
1643:
1644: &csv_cleanup();
1645: ($navmap,@sequences) =
1646: &Apache::lonstatistics::selected_sequences_with_assessments();
1647: if (! ref($navmap)) {
1648: # Unable to get data, so bail out
1649: $r->print("<h3>".
1650: &mt('Unable to retrieve course information.').
1651: '</h3>');
1652: }
1653: #
1654: # Deal with unimplemented requests
1655: $request_aborted = undef;
1656: if ($chosen_output->{'base'} =~ /final table/) {
1657: $r->print(<<END);
1658: <h2>Unable to Complete Request</h2>
1659: <p>
1660: The <b>Summary Table (Scores)</b> option is not available for non-HTML output.
1661: </p>
1662: END
1663: $request_aborted = 1;
1664: }
1665: return if ($request_aborted);
1666: #
1667: # Initialize progress window
1668: my $studentcount = scalar(@Apache::lonstatistics::Students);
1669: %prog_state=&Apache::lonhtmlcommon::Create_PrgWin
1670: ($r,'CSV File Compilation Status',
1671: 'CSV File Compilation Progress', $studentcount,
1672: 'inline',undef,'Statistics','stats_status');
1673: #
1674: # Open a file
1675: ($outputfile,$filename) = &Apache::loncommon::create_text_file($r,'csv');
1676: if (! defined($outputfile)) { return ''; }
1677: #
1678: # Datestamp
1679: my $description = $env{'course.'.$env{'request.course.id'}.'.description'};
1680: print $outputfile '"'.&Apache::loncommon::csv_translate($description).'",'.
1681: '"'.&Apache::loncommon::csv_translate(scalar(localtime(time))).'"'.
1682: "\n";
1683: print $outputfile '"'.
1684: &Apache::loncommon::csv_translate
1685: (&Apache::lonstatistics::section_and_enrollment_description()).
1686: '"'."\n";
1687: foreach my $item ('shortdesc','non_html_notes') {
1688: next if (! exists($chosen_output->{$item}));
1689: print $outputfile
1690: '"'.&Apache::loncommon::csv_translate($chosen_output->{$item}).'"'.
1691: "\n";
1692: }
1693: #
1694: # Print out the headings
1695: my $sequence_row = '';
1696: my $resource_row = undef;
1697: foreach my $field (&get_student_fields_to_show()) {
1698: $sequence_row .='"",';
1699: $resource_row .= '"'.&Apache::loncommon::csv_translate($field).'",';
1700: }
1701: foreach my $seq (@sequences) {
1702: $sequence_row .= '"'.
1703: &Apache::loncommon::csv_translate($seq->compTitle).'",';
1704: my $count = 0;
1705: if ($chosen_output->{'every_problem'}) {
1706: foreach my $res (&get_resources($navmap,$seq)) {
1707: if (scalar(@{$res->parts}) < 1) {
1708: next;
1709: }
1710: foreach my $part (@{$res->parts}) {
1711: $resource_row .= '"'.
1712: &Apache::loncommon::csv_translate
1713: ($res->compTitle.', Part '.$res->part_display($part)).'",';
1714: $count++;
1715: }
1716: }
1717: }
1718: $sequence_row.='"",'x$count;
1719: if ($chosen_output->{'sequence_sum'}) {
1720: if($chosen_output->{'correct'}) {
1721: $resource_row .= '"'.&mt('sum').'",';
1722: } else {
1723: $resource_row .= '"'.&mt('score').'",';
1724: }
1725: }
1726: if ($chosen_output->{'sequence_max'}) {
1727: $sequence_row.= '"",';
1728: $resource_row .= '"'.&mt('maximum possible').'",';
1729: }
1730: }
1731: if ($chosen_output->{'grand_total'}) {
1732: $sequence_row.= '"",';
1733: $resource_row.= '"'.&mt('Total').'",';
1734: }
1735: if ($chosen_output->{'grand_maximum'}) {
1736: $sequence_row.= '"",';
1737: $resource_row.= '"'.&mt('Maximum').'",';
1738: }
1739: chomp($sequence_row);
1740: chomp($resource_row);
1741: print $outputfile $sequence_row."\n";
1742: print $outputfile $resource_row."\n";
1743: return;
1744: }
1745:
1746: sub csv_outputstudent {
1747: my ($r,$student) = @_;
1748: if ($request_aborted || ! defined($navmap) || ! defined($outputfile)) {
1749: return;
1750: }
1751: my $Str = '';
1752: #
1753: # Output student fields
1754: my @to_show = &get_student_fields_to_show();
1755: foreach my $field (@to_show) {
1756: my $value = $student->{$field};
1757: if ($field eq 'comments') {
1758: $value = &Apache::lonmsgdisplay::retrieve_instructor_comments
1759: ($student->{'username'},$student->{'domain'});
1760: }
1761: $Str .= '"'.&Apache::loncommon::csv_translate($value).'",';
1762: }
1763: #
1764: # Get student assessment data
1765: my %StudentsData;
1766: my @tmp = &Apache::loncoursedata::get_current_state($student->{'username'},
1767: $student->{'domain'},
1768: undef,
1769: $env{'request.course.id'});
1770: if ((scalar @tmp > 0) && ($tmp[0] !~ /^error:/)) {
1771: %StudentsData = @tmp;
1772: }
1773: #
1774: # Output performance data
1775: my $total = 0;
1776: my $maximum = 0;
1777: foreach my $seq (@sequences) {
1778: my ($performance,$performance_length,$score,$seq_max,$rawdata);
1779: if ($chosen_output->{'tries'}){
1780: ($performance,$performance_length,$score,$seq_max,$rawdata) =
1781: &student_tries_on_sequence($student,\%StudentsData,
1782: $navmap,$seq,'no');
1783: } else {
1784: ($performance,$performance_length,$score,$seq_max,$rawdata) =
1785: &student_performance_on_sequence($student,\%StudentsData,
1786: $navmap,$seq,'no',
1787: $chosen_output->{ignore_weight});
1788: }
1789: if ($chosen_output->{'every_problem'}) {
1790: if ($chosen_output->{'correct'}) {
1791: $score = 0;
1792: # Deal with number of parts correct data
1793: $Str .= '"'.join('","',( map { if ($_>0) {
1794: $score += 1;
1795: 1;
1796: } else {
1797: 0;
1798: }
1799: } @$rawdata)).'",';
1800: } else {
1801: $Str .= '"'.join('","',(@$rawdata)).'",';
1802: }
1803: }
1804: if ($chosen_output->{'sequence_sum'}) {
1805: $Str .= '"'.$score.'",';
1806: }
1807: if ($chosen_output->{'sequence_max'}) {
1808: $Str .= '"'.$seq_max.'",';
1809: }
1810: $total+=$score;
1811: $maximum += $seq_max;
1812: }
1813: if ($chosen_output->{'grand_total'}) {
1814: $Str .= '"'.$total.'",';
1815: }
1816: if ($chosen_output->{'grand_maximum'}) {
1817: $Str .= '"'.$maximum.'",';
1818: }
1819: chop($Str);
1820: $Str .= "\n";
1821: print $outputfile $Str;
1822: #
1823: # Update the progress window
1824: &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,'last student');
1825: return;
1826: }
1827:
1828: sub csv_finish {
1829: my ($r) = @_;
1830: if ($request_aborted || ! defined($navmap) || ! defined($outputfile)) {
1831: &csv_cleanup();
1832: return;
1833: }
1834: close($outputfile);
1835: #
1836: # Close the progress window
1837: &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
1838: #
1839: # Tell the user where to get their csv file
1840: $r->print('<br />'.
1841: '<a href="'.$filename.'">'.&mt('Your CSV file.').'</a>'."\n");
1842: $r->rflush();
1843: &csv_cleanup();
1844: return;
1845:
1846: }
1847:
1848: }
1849:
1850: # This function will return an HTML string including a star, with
1851: # a mouseover popup showing the "real" value. An optional second
1852: # argument lets you show something other than a star.
1853: sub show_star {
1854: my $popup = shift;
1855: my $symbol = shift || '*';
1856: # Escape the popup for JS.
1857: $popup =~ s/([^-a-zA-Z0-9:;,._ ()|!\/?=&*])/'\\' . sprintf("%lo", ord($1))/ge;
1858:
1859: return "<span class=\"LC_chrt_popup_exists\" onmouseover='popup_score(this, \"$popup\");return false;' onmouseout='popdown_score();return false;'>$symbol</span>";
1860: }
1861:
1862: #######################################################
1863: #######################################################
1864:
1865: =pod
1866:
1867: =item &StudentTriesOnSequence()
1868:
1869: Inputs:
1870:
1871: =over 4
1872:
1873: =item $student
1874:
1875: =item $studentdata Hash ref to all student data
1876:
1877: =item $seq Hash ref, the sequence we are working on
1878:
1879: =item $links if defined we will output links to each resource.
1880:
1881: =back
1882:
1883: =cut
1884:
1885: #######################################################
1886: #######################################################
1887: sub student_tries_on_sequence {
1888: my ($student,$studentdata,$navmap,$seq,$links) = @_;
1889: $links = 'no' if (! defined($links));
1890: my $Str = '';
1891: my ($sum,$max) = (0,0);
1892: my $performance_length = 0;
1893: my @TriesData = ();
1894: my $tries;
1895: my $hasdata = 0; # flag - true if the student has any data on the sequence
1896: foreach my $resource (&get_resources($navmap,$seq)) {
1897: my $resource_data = $studentdata->{$resource->symb};
1898: my $value = '';
1899: foreach my $partnum (@{$resource->parts()}) {
1900: $tries = undef;
1901: $max++;
1902: $performance_length++;
1903: my $symbol = ' '; # default to space
1904: #
1905: my $awarded = 0;
1906: if (exists($resource_data->{'resource.'.$partnum.'.awarded'})) {
1907: $awarded = $resource_data->{'resource.'.$partnum.'.awarded'};
1908: $awarded = 0 if (! $awarded);
1909: }
1910: #
1911: my $status = '';
1912: if (exists($resource_data->{'resource.'.$partnum.'.solved'})) {
1913: $status = $resource_data->{'resource.'.$partnum.'.solved'};
1914: }
1915: #
1916: my $tries = 0;
1917: if(exists($resource_data->{'resource.'.$partnum.'.tries'})) {
1918: $tries = $resource_data->{'resource.'.$partnum.'.tries'};
1919: $hasdata =1;
1920: }
1921: #
1922: if ($awarded > 0) {
1923: # The student has gotten the problem correct to some degree
1924: if ($status eq 'excused') {
1925: $symbol = 'x';
1926: $max--;
1927: } elsif ($status eq 'correct_by_override' && !$resource->is_task()) {
1928: $symbol = '+';
1929: $sum++;
1930: } elsif ($tries > 0) {
1931: if ($tries > 9) {
1932: $symbol = show_star($tries);
1933: } else {
1934: $symbol = $tries;
1935: }
1936: $sum++;
1937: } else {
1938: $symbol = '+';
1939: $sum++;
1940: }
1941: } else {
1942: # The student has the problem incorrect or it is ungraded
1943: if ($status eq 'excused') {
1944: $symbol = 'x';
1945: $max--;
1946: } elsif ($status eq 'incorrect_by_override') {
1947: $symbol = '-';
1948: } elsif ($status eq 'ungraded_attempted') {
1949: $symbol = 'u';
1950: } elsif ($status eq 'incorrect_attempted' ||
1951: $tries > 0) {
1952: $symbol = '.';
1953: } else {
1954: # Problem is wrong and has not been attempted.
1955: $symbol=' ';
1956: }
1957: }
1958: #
1959: if (! defined($tries)) {
1960: $tries = 0;
1961: }
1962: if ($status =~ /^(incorrect|ungraded)/) {
1963: # Bug 3390: show '-' for tries on incorrect problems
1964: # (csv & excel only)
1965: push(@TriesData,-$tries);
1966: } else {
1967: push (@TriesData,$tries);
1968: }
1969: #
1970: if ( ($links eq 'yes' && $symbol ne ' ') ||
1971: ($links eq 'all')) {
1972: my $link = '/adm/grades'.
1973: '?symb='.&escape($resource->shown_symb).
1974: '&student='.$student->{'username'}.
1975: '&userdom='.$student->{'domain'}.
1976: '&command=submission';
1977: $symbol = &link($symbol, $link);
1978: }
1979: $value .= $symbol;
1980: }
1981: $Str .= $value;
1982: }
1983: if ($seq->randompick()) {
1984: $max = $seq->randompick();
1985: }
1986: if (! $hasdata && $sum == 0) {
1987: $sum = ' ';
1988: }
1989: return ($Str,$performance_length,$sum,$max,\@TriesData);
1990: }
1991:
1992: =pod
1993:
1994: =item &link
1995:
1996: Inputs:
1997:
1998: =over 4
1999:
2000: =item $text
2001:
2002: =item $target
2003:
2004: =back
2005:
2006: Takes the text and creates a link to the $text that honors
2007: the value of 'new window' if clicked on, but uses a real
2008: 'href' so middle and right clicks still work.
2009:
2010: $target and $text are assumed to be already correctly escaped; i.e., it
2011: can be dumped out directly into the output stream as-is.
2012:
2013: =cut
2014:
2015: sub link {
2016: my ($text,$target) = @_;
2017: return
2018: "<a href='$target' onclick=\"t=this.href;if(new_window)"
2019: ."{window.open(t)}else{return void(window."
2020: ."location=t)};return false;\">$text</a>";
2021: }
2022:
2023: #######################################################
2024: #######################################################
2025:
2026: =pod
2027:
2028: =item &student_performance_on_sequence
2029:
2030: Inputs:
2031:
2032: =over 4
2033:
2034: =item $student
2035:
2036: =item $studentdata Hash ref to all student data
2037:
2038: =item $seq Hash ref, the sequence we are working on
2039:
2040: =item $links if defined we will output links to each resource.
2041:
2042: =back
2043:
2044: =cut
2045:
2046: #######################################################
2047: #######################################################
2048: sub student_performance_on_sequence {
2049: my ($student,$studentdata,$navmap,$seq,$links,$awarded_only) = @_;
2050: $links = 'no' if (! defined($links));
2051: my $Str = ''; # final result string
2052: my ($score,$max) = (0,0);
2053: my $performance_length = 0;
2054: my $symbol;
2055: my @ScoreData = ();
2056: my $partscore;
2057: my $hasdata = 0; # flag, 0 if there were no submissions on the sequence
2058: foreach my $resource (&get_resources($navmap,$seq)) {
2059: my $symb = $resource->symb;
2060: my $resource_data = $studentdata->{$symb};
2061: foreach my $part (@{$resource->parts()}) {
2062: $partscore = undef;
2063: my $weight;
2064: if (!$awarded_only){
2065: $weight = &Apache::lonnet::EXT('resource.'.$part.'.weight',
2066: $symb,
2067: $student->{'domain'},
2068: $student->{'username'},
2069: $student->{'section'});
2070: }
2071: if (!defined($weight) || ($weight eq '')) {
2072: $weight=1;
2073: }
2074: #
2075: $max += $weight; # see the 'excused' branch below...
2076: $performance_length++; # one character per part
2077: $symbol = ' '; # default to space
2078: #
2079: my $awarded;
2080: if (exists($resource_data->{'resource.'.$part.'.awarded'})) {
2081: $awarded = $resource_data->{'resource.'.$part.'.awarded'};
2082: $awarded = 0 if (! $awarded);
2083: $hasdata = 1;
2084: }
2085: #
2086: $partscore = &Apache::grades::compute_points($weight,$awarded);
2087: if (! defined($awarded)) {
2088: $partscore = undef;
2089: }
2090: $score += $partscore;
2091: $symbol = $partscore;
2092: if (abs($symbol - sprintf("%.0f",$symbol)) < 0.001) {
2093: $symbol = sprintf("%.0f",$symbol);
2094: }
2095: if (length($symbol) > 1) {
2096: $symbol = show_star($symbol);
2097: }
2098: if (exists($resource_data->{'resource.'.$part.'.solved'}) &&
2099: $resource_data->{'resource.'.$part.'.solved'} ne '') {
2100: my $status = $resource_data->{'resource.'.$part.'.solved'};
2101: if ($status eq 'excused') {
2102: $symbol = 'x';
2103: $max -= $weight; # Do not count 'excused' problems.
2104: } elsif ($status eq 'ungraded_attempted') {
2105: $symbol = 'u';
2106: }
2107: $hasdata = 1;
2108: } elsif ($resource_data->{'resource.'.$part.'.award'} eq 'DRAFT') {
2109: $symbol = 'd';
2110: $hasdata = 1;
2111: } elsif (!exists($resource_data->{'resource.'.$part.'.awarded'})){
2112: # Unsolved. Did they try?
2113: if (exists($resource_data->{'resource.'.$part.'.tries'})){
2114: $symbol = '.';
2115: $hasdata = 1;
2116: } else {
2117: $symbol = ' ';
2118: }
2119: }
2120: #
2121: if (! defined($partscore)) {
2122: $partscore = $symbol;
2123: }
2124: push (@ScoreData,$partscore);
2125: #
2126: if ( ($links eq 'yes' && $symbol ne ' ') || ($links eq 'all')) {
2127: my $link = '/adm/grades' .
2128: '?symb='.&escape($resource->shown_symb).
2129: '&student='.$student->{'username'}.
2130: '&userdom='.$student->{'domain'}.
2131: '&command=submission';
2132: $symbol = &link($symbol, $link);
2133: }
2134: $Str .= $symbol;
2135: }
2136: }
2137: if (! $hasdata && $score == 0) {
2138: $score = ' ';
2139: }
2140: return ($Str,$performance_length,$score,$max,\@ScoreData);
2141: }
2142:
2143: #######################################################
2144: #######################################################
2145:
2146: =pod
2147:
2148: =item &CreateLegend()
2149:
2150: This function returns a formatted string containing the legend for the
2151: chart. The legend describes the symbols used to represent grades for
2152: problems.
2153:
2154: =cut
2155:
2156: #######################################################
2157: #######################################################
2158: sub CreateLegend {
2159: my $Str = "<p><pre>".
2160: " digit score or number of tries to get correct ".
2161: " * correct by student in more than 9 tries\n".
2162: " + correct by hand grading or override\n".
2163: " - incorrect by override\n".
2164: " . incorrect attempted\n".
2165: " u ungraded attempted\n".
2166: " d draft answer saved but not submitted\n".
2167: " not attempted (blank field)\n".
2168: " x excused".
2169: "</pre><p>";
2170: return $Str;
2171: }
2172:
2173: #######################################################
2174: #######################################################
2175:
2176: =pod
2177:
2178: =back
2179:
2180: =cut
2181:
2182: #######################################################
2183: #######################################################
2184:
2185: 1;
2186:
2187: __END__
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