1: # The LearningOnline Network with CAPA
2: #
3: # $Id: lonstudentassessment.pm,v 1.150.2.4 2010/02/12 15:11:08 raeburn Exp $
4: #
5: # Copyright Michigan State University Board of Trustees
6: #
7: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
8: # LON-CAPA is free software; you can redistribute it and/or modify
9: # it under the terms of the GNU General Public License as published by
10: # the Free Software Foundation; either version 2 of the License, or
11: # (at your option) any later version.
12: #
13: # LON-CAPA is distributed in the hope that it will be useful,
14: # but WITHOUT ANY WARRANTY; without even the implied warranty of
15: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16: # GNU General Public License for more details.
17: #
18: # You should have received a copy of the GNU General Public License
19: # along with LON-CAPA; if not, write to the Free Software
20: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21: #
22: # /home/httpd/html/adm/gpl.txt
23: #
24: # http://www.lon-capa.org/
25: #
26: # (Navigate problems for statistical reports
27: #
28: #######################################################
29: #######################################################
30:
31: =pod
32:
33: =head1 NAME
34:
35: lonstudentassessment
36:
37: =head1 SYNOPSIS
38:
39: Presents assessment data about a student or a group of students.
40:
41: =head1 Subroutines
42:
43: =over 4
44:
45: =cut
46:
47: #######################################################
48: #######################################################
49:
50: package Apache::lonstudentassessment;
51:
52: use strict;
53: use Apache::lonstatistics();
54: use Apache::lonhtmlcommon();
55: use Apache::loncommon();
56: use Apache::loncoursedata;
57: use Apache::lonnet; # for logging porpoises
58: use Apache::lonlocal;
59: use Apache::grades();
60: use Apache::lonmsgdisplay();
61: use Time::HiRes;
62: use Spreadsheet::WriteExcel;
63: use Spreadsheet::WriteExcel::Utility();
64: use lib '/home/httpd/lib/perl/';
65: use LONCAPA;
66:
67:
68: #######################################################
69: #######################################################
70: =pod
71:
72: =item Package Variables
73:
74: =over 4
75:
76: =item $Statistics Hash ref to store student data. Indexed by symb,
77: contains hashes with keys 'score' and 'max'.
78:
79: =cut
80:
81: #######################################################
82: #######################################################
83:
84: my $Statistics;
85:
86: #######################################################
87: #######################################################
88:
89: =pod
90:
91: =item $show_links 'yes' or 'no' for linking to student performance data
92:
93: =item $output_mode 'html', 'excel', or 'csv' for output mode
94:
95: =item $show 'all', 'totals', or 'scores' determines how much data is output
96:
97: =item $single_student_mode evaluates to true if we are showing only one
98: student.
99:
100: =cut
101:
102: #######################################################
103: #######################################################
104: my $show_links;
105: my $output_mode;
106: my $chosen_output;
107: my $single_student_mode;
108:
109: #######################################################
110: #######################################################
111: # End of package variable declarations
112:
113: =pod
114:
115: =back
116:
117: =cut
118:
119: #######################################################
120: #######################################################
121:
122: =pod
123:
124: =item &BuildStudentAssessmentPage()
125:
126: Inputs:
127:
128: =over 4
129:
130: =item $r Apache Request
131:
132: =item $c Apache Connection
133:
134: =back
135:
136: =cut
137:
138: #######################################################
139: #######################################################
140: sub BuildStudentAssessmentPage {
141: my ($r,$c)=@_;
142: #
143: undef($Statistics);
144: undef($show_links);
145: undef($output_mode);
146: undef($chosen_output);
147: undef($single_student_mode);
148: #
149: my %Saveable_Parameters = ('Status' => 'scalar',
150: 'chartoutputmode' => 'scalar',
151: 'chartoutputdata' => 'scalar',
152: 'Section' => 'array',
153: 'Groups' => 'array',
154: 'StudentData' => 'array',
155: 'Maps' => 'array');
156: &Apache::loncommon::store_course_settings('chart',\%Saveable_Parameters);
157: &Apache::loncommon::restore_course_settings('chart',\%Saveable_Parameters);
158: #
159: &Apache::lonstatistics::PrepareClasslist();
160: #
161: $single_student_mode = 0;
162: $single_student_mode = 1 if ($env{'form.SelectedStudent'});
163: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
164: ['selectstudent']);
165: if ($env{'form.selectstudent'}) {
166: &Apache::lonstatistics::DisplayClasslist($r);
167: return;
168: }
169: #
170: # Print out the HTML headers for the interface
171: # This also parses the output mode selector
172: # This step must *always* be done.
173: $r->print(&CreateInterface());
174: $r->print('<input type="hidden" name="notfirstrun" value="true" />');
175: $r->print('<input type="hidden" name="sort" value="'.
176: $env{'form.sort'}.'" />');
177: $r->rflush();
178: #
179: if (! exists($env{'form.notfirstrun'}) && ! $single_student_mode) {
180: return;
181: }
182: $r->print('<h4>'.
183: &Apache::lonstatistics::section_and_enrollment_description().
184: '</h4>');
185: #
186: my $initialize = \&html_initialize;
187: my $output_student = \&html_outputstudent;
188: my $finish = \&html_finish;
189: #
190: if ($output_mode eq 'excel') {
191: $initialize = \&excel_initialize;
192: $output_student = \&excel_outputstudent;
193: $finish = \&excel_finish;
194: } elsif ($output_mode eq 'csv') {
195: $initialize = \&csv_initialize;
196: $output_student = \&csv_outputstudent;
197: $finish = \&csv_finish;
198: }
199: #
200: if($c->aborted()) { return ; }
201: #
202: # Determine which students we want to look at
203: my @Students;
204: if ($single_student_mode) {
205: @Students = (&Apache::lonstatistics::current_student());
206: $r->print(&next_and_previous_buttons());
207: $r->rflush();
208: } else {
209: @Students = @Apache::lonstatistics::Students;
210: }
211: #
212: # Perform generic initialization tasks
213: # Since we use lonnet::EXT to retrieve problem weights,
214: # to ensure current data we must clear the caches out.
215: # This makes sure that parameter changes at the student level
216: # are immediately reflected in the chart.
217: &Apache::lonnet::clear_EXT_cache_status();
218: #
219: # Clean out loncoursedata's package data, just to be safe.
220: &Apache::loncoursedata::clear_internal_caches();
221: #
222: # Call the initialize routine selected above
223: $initialize->($r);
224: foreach my $student (@Students) {
225: if($c->aborted()) {
226: $finish->($r);
227: return ;
228: }
229: # Call the output_student routine selected above
230: $output_student->($r,$student);
231: }
232: # Call the "finish" routine selected above
233: $finish->($r);
234: #
235: return;
236: }
237:
238: #######################################################
239: #######################################################
240: sub next_and_previous_buttons {
241: my $Str = '';
242: $Str .= '<input type="hidden" name="SelectedStudent" value="'.
243: $env{'form.SelectedStudent'}.'" />';
244: #
245: # Build the previous student link
246: my $previous = &Apache::lonstatistics::previous_student();
247: my $previousbutton = '';
248: if (defined($previous)) {
249: my $sname = $previous->{'username'}.':'.$previous->{'domain'};
250: $previousbutton .= '<input type="button" value="'.
251: &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:
378: return $Str;
379: }
380:
381: #######################################################
382: #######################################################
383:
384: =pod
385:
386: =item &CreateAndParseOutputSelector()
387:
388: =cut
389:
390: #######################################################
391: #######################################################
392: my @OutputOptions =
393: ({ name => 'HTML, with links',
394: value => 'html, with links',
395: description => 'Output HTML with each symbol linked to the problem '.
396: 'which generated it.',
397: mode => 'html',
398: show_links => 'yes',
399: },
400: { name => 'HTML, with all links',
401: value => 'html, with all links',
402: description => 'Output HTML with each symbol linked to the problem '.
403: 'which generated it. '.
404: 'This includes links for unattempted problems.',
405: mode => 'html',
406: show_links => 'all',
407: },
408: { name => 'HTML, without links',
409: value => 'html, without links',
410: description => 'Output HTML. By not including links, the size of the'.
411: ' web page is greatly reduced. If your browser crashes on the '.
412: 'full display, try this.',
413: mode => 'html',
414: show_links => 'no',
415: },
416: { name => 'Excel',
417: value => 'excel',
418: description => 'Output an Excel file (compatable with Excel 95).',
419: mode => 'excel',
420: show_links => 'no',
421: },
422: { name => 'CSV',
423: value => 'csv',
424: description => 'Output a comma separated values file suitable for '.
425: 'import into a spreadsheet program. Using this method as opposed '.
426: 'to Excel output allows you to organize your data before importing'.
427: ' it into a spreadsheet program.',
428: mode => 'csv',
429: show_links => 'no',
430: },
431: );
432:
433: sub OutputDescriptions {
434: my $Str = '';
435: $Str .= "<h2>Output Formats</h2>\n";
436: $Str .= "<dl>\n";
437: foreach my $outputmode (@OutputOptions) {
438: $Str .=" <dt>".$outputmode->{'name'}."</dt>\n";
439: $Str .=" <dd>".$outputmode->{'description'}."</dd>\n";
440: }
441: $Str .= "</dl>\n";
442: return $Str;
443: }
444:
445: sub CreateAndParseOutputSelector {
446: my $Str = '';
447: my $elementname = 'chartoutputmode';
448: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
449: [$elementname]);
450: #
451: # Format for output options is 'mode, restrictions';
452: my $selected = (&Apache::loncommon::get_env_multiple('form.'.$elementname))[0];
453: $selected = 'html, without links' if (!$selected);
454:
455: #
456: # Set package variables describing output mode
457: $show_links = 'no';
458: $output_mode = 'html';
459: foreach my $option (@OutputOptions) {
460: next if ($option->{'value'} ne $selected);
461: $output_mode = $option->{'mode'};
462: $show_links = $option->{'show_links'};
463: }
464:
465: #
466: # Build the form element
467: $Str = qq/<select size="5" name="$elementname">/;
468: foreach my $option (@OutputOptions) {
469: $Str .= "\n".' <option value="'.$option->{'value'}.'"';
470: $Str .= " selected " if ($option->{'value'} eq $selected);
471: $Str .= ">".&mt($option->{'name'})."<\/option>";
472: }
473: $Str .= "\n</select>";
474: return $Str;
475: }
476:
477: ##
478: ## Data selector stuff
479: ##
480: my @OutputDataOptions =
481: (
482: { name => 'Scores Summary',
483: base => 'scores',
484: value => 'sum and total',
485: scores => 1,
486: tries => 0,
487: every_problem => 0,
488: sequence_sum => 1,
489: sequence_max => 1,
490: grand_total => 1,
491: grand_maximum => 1,
492: summary_table => 1,
493: maximum_row => 1,
494: ignore_weight => 0,
495: shortdesc => 'Total Score and Maximum Possible for each '.
496: 'Sequence or Folder',
497: longdesc => 'The score of each student as well as the '.
498: ' maximum possible on each Sequence or Folder.',
499: },
500: { name => 'Scores Per Problem',
501: base => 'scores',
502: value => 'scores',
503: scores => 1,
504: tries => 0,
505: correct => 0,
506: every_problem => 1,
507: sequence_sum => 1,
508: sequence_max => 1,
509: grand_total => 1,
510: grand_maximum => 1,
511: summary_table => 1,
512: maximum_row => 1,
513: ignore_weight => 0,
514: shortdesc => 'Score on each Problem Part',
515: longdesc =>'The students score on each problem part, computed as'.
516: 'the part weight * part awarded',
517: },
518: { name =>'Tries',
519: base =>'tries',
520: value => 'tries',
521: scores => 0,
522: tries => 1,
523: correct => 0,
524: every_problem => 1,
525: sequence_sum => 0,
526: sequence_max => 0,
527: grand_total => 0,
528: grand_maximum => 0,
529: summary_table => 0,
530: maximum_row => 0,
531: ignore_weight => 0,
532: shortdesc => 'Number of Tries before success on each Problem Part',
533: longdesc =>'The number of tries before success on each problem part.',
534: non_html_notes => 'negative values indicate an incorrect problem',
535: },
536: { name =>'Parts Correct',
537: base =>'tries',
538: value => 'parts correct total',
539: scores => 0,
540: tries => 0,
541: correct => 1,
542: every_problem => 1,
543: sequence_sum => 1,
544: sequence_max => 1,
545: grand_total => 1,
546: grand_maximum => 1,
547: summary_table => 1,
548: maximum_row => 0,
549: ignore_weight => 1,
550: shortdesc => 'Number of Problem Parts completed successfully',
551: longdesc => 'The Number of Problem Parts completed successfully and '.
552: 'the maximum possible for each student',
553: },
554: );
555:
556: sub HTMLifyOutputDataDescriptions {
557: my $Str = '';
558: $Str .= '<h2>'.&mt('Output Data').'</h2>'."\n";
559:
560: $Str .= "<dl>\n";
561: foreach my $option (@OutputDataOptions) {
562: $Str .= ' <dt>'.$option->{'name'}.'</dt>';
563: $Str .= '<dd>'.$option->{'longdesc'}.'</dd>'."\n";
564: }
565: $Str .= "</dl>\n";
566: return $Str;
567: }
568:
569: sub CreateAndParseOutputDataSelector {
570: my $Str = '';
571: my $elementname = 'chartoutputdata';
572: #
573: my $selected = (&Apache::loncommon::get_env_multiple('form.'.$elementname))[0];
574: $selected = 'scores' if (!$selected);
575:
576: #
577: $chosen_output = $OutputDataOptions[0];
578: foreach my $option (@OutputDataOptions) {
579: if ($option->{'value'} eq $selected) {
580: $chosen_output = $option;
581: }
582: }
583: #
584: # Build the form element
585: $Str = qq/<select size="5" name="$elementname">/;
586: foreach my $option (@OutputDataOptions) {
587: $Str .= "\n".' <option value="'.$option->{'value'}.'"';
588: $Str .= " selected " if ($option->{'value'} eq $chosen_output->{'value'});
589: $Str .= ">".&mt($option->{'name'})."<\/option>";
590: }
591: $Str .= "\n</select>";
592: return $Str;
593:
594: }
595:
596: #######################################################
597: #######################################################
598: sub count_parts {
599: my ($navmap,$sequence) = @_;
600: my @resources = &get_resources($navmap,$sequence);
601: my $count = 0;
602: foreach my $res (@resources) {
603: $count += scalar(@{$res->parts});
604: }
605: return $count;
606: }
607:
608: sub get_resources {
609: my ($navmap,$sequence) = @_;
610: my @resources = $navmap->retrieveResources($sequence,
611: sub { shift->is_problem(); },
612: 0,0,0);
613: return @resources;
614: }
615:
616: #######################################################
617: #######################################################
618:
619: =pod
620:
621: =head2 HTML output routines
622:
623: =item &html_initialize($r)
624:
625: Create labels for the columns of student data to show.
626:
627: =item &html_outputstudent($r,$student)
628:
629: Return a line of the chart for a student.
630:
631: =item &html_finish($r)
632:
633: =cut
634:
635: #######################################################
636: #######################################################
637: {
638: my $padding;
639: my $count;
640:
641: my $nodata_count; # The number of students for which there is no data
642: my %prog_state; # progress state used by loncommon PrgWin routines
643: my $total_sum_width;
644:
645: my %width; # Holds sequence width information
646: my @sequences;
647: my $navmap; # Have to keep this around since weakref is a bit zealous
648:
649: sub html_cleanup {
650: undef(%prog_state);
651: undef(%width);
652: #
653: undef($navmap);
654: undef(@sequences);
655: }
656:
657: sub html_initialize {
658: my ($r) = @_;
659: #
660: $padding = ' 'x3;
661: $count = 0;
662: $nodata_count = 0;
663: &html_cleanup();
664: ($navmap,@sequences) =
665: &Apache::lonstatistics::selected_sequences_with_assessments();
666: if (! ref($navmap)) {
667: # Unable to get data, so bail out
668: $r->print('<p class="LC_error">'.
669: &mt('Unable to retrieve course information.').
670: '</p>');
671: }
672:
673: # If we're showing links, show a checkbox to open in new
674: # windows.
675: if ($show_links ne 'no') {
676: my $labeltext = &mt('Show links in new window:');
677: $r->print(<<NEW_WINDOW_CHECKBOX);
678: <script type="text/javascript">new_window = true;</script>
679: <p><label>$labeltext
680: <input type="checkbox" checked="checked" onclick="new_window=this.checked" />
681: </label></p>
682: NEW_WINDOW_CHECKBOX
683: }
684:
685: #
686: $r->print("<h3>".$env{'course.'.$env{'request.course.id'}.'.description'}.
687: " ".&Apache::lonlocal::locallocaltime(time)."</h3>");
688: #
689: if ($chosen_output->{'base'} !~ /^final table/) {
690: $r->print("<h3>".&mt($chosen_output->{'shortdesc'})."</h3>");
691: }
692: my $Str = "<pre>\n";
693: # First, the @StudentData fields need to be listed
694: my @to_show = &get_student_fields_to_show();
695: foreach my $field (@to_show) {
696: my $title=$Apache::lonstatistics::StudentData{$field}->{'title'};
697: my $base =$Apache::lonstatistics::StudentData{$field}->{'base_width'};
698: my $width=$Apache::lonstatistics::StudentData{$field}->{'width'};
699: $Str .= $title.' 'x($width-$base).$padding;
700: }
701: #
702: # Compute the column widths and output the sequence titles
703: my $total_count;
704: #
705: # Compute sequence widths
706: my $starttime = Time::HiRes::time;
707: foreach my $seq (@sequences) {
708: my $symb = $seq->symb;
709: my $title = $seq->compTitle;
710: $width{$symb}->{'width_sum'} = 0;
711: # Compute width of sum
712: if ($chosen_output->{'sequence_sum'}) {
713: if ($chosen_output->{'every_problem'}) {
714: # Use 1 digit for a space
715: $width{$symb}->{'width_sum'} += 1;
716: }
717: $total_count += &count_parts($navmap,$seq);
718: # Use 3 digits for the sum
719: $width{$symb}->{'width_sum'} += 3;
720: }
721: # Compute width of maximum
722: if ($chosen_output->{'sequence_max'}) {
723: if ($width{$symb}->{'width_sum'}>0) {
724: # One digit for the '/'
725: $width{$symb}->{'width_sum'} +=1;
726: }
727: # Use 3 digits for the total
728: $width{$symb}->{'width_sum'}+=3;
729: }
730: #
731: if ($chosen_output->{'every_problem'}) {
732: # one problem per digit
733: $width{$symb}->{'width_parts'}= &count_parts($navmap,$seq);
734: $width{$symb}->{'width_problem'} += $width{$symb}->{'width_parts'};
735: } else {
736: $width{$symb}->{'width_problem'} = 0;
737: }
738: $width{$symb}->{'width_total'} = $width{$symb}->{'width_problem'} +
739: $width{$symb}->{'width_sum'};
740: if ($width{$symb}->{'width_total'} < length(&HTML::Entities::decode($title))) {
741: $width{$symb}->{'width_total'} = length(&HTML::Entities::decode($title));
742: }
743: #
744: # Output the sequence titles
745: $Str .= $title.(' 'x($width{$symb}->{'width_total'}-
746: length($title)
747: )).$padding;
748: }
749: $total_sum_width = length($total_count)+1;
750: $Str .= " total</pre>\n";
751: $Str .= "<pre>";
752: $r->print($Str);
753: $r->rflush();
754:
755: $r->print(<<JS);
756: <script type="text/javascript">
757: // get the left offset of a given widget as an absolute position
758: function getLeftOffset (element) {
759: return collect(element, "offsetLeft");
760: }
761:
762: // get the top offset of a given widget as an absolute position
763: function getTopOffset (element) {
764: return collect(element, "offsetTop");
765: }
766:
767: function collect(element, att) {
768: var val = 0;
769: while(element) {
770: val += element[att];
771: element = element.offsetParent;
772: }
773: return val;
774: }
775:
776: var currentDiv;
777: var currentElement;
778: function popup_score(element, score) {
779: popdown_score();
780: var left = getLeftOffset(element);
781: var top = getTopOffset(element);
782: var div = document.createElement("div");
783: div.className = "LC_chrt_popup";
784: div.appendChild(document.createTextNode(score));
785: div.style.position = "absolute";
786: div.style.top = (top - 25) + "px";
787: div.style.left = (left - 10) + "px";
788: currentDiv = div;
789: document.body.insertBefore(div, document.body.childNodes[0]);
790: element.className = "LC_chrt_popup_up";
791: currentElement = element;
792: }
793:
794: function popdown_score() {
795: if (currentDiv) {
796: document.body.removeChild(currentDiv);
797: }
798: if (currentElement) {
799: currentElement.className = 'LC_chrt_popup_exists';
800: }
801: currentDiv = undefined;
802: }
803: </script>
804: JS
805:
806: #
807: # Let the user know what we are doing
808: my $studentcount = scalar(@Apache::lonstatistics::Students);
809: if ($env{'form.SelectedStudent'}) {
810: $studentcount = '1';
811: }
812: #
813: # Initialize progress window
814: %prog_state=&Apache::lonhtmlcommon::Create_PrgWin
815: ($r,'HTML Chart Status',
816: 'HTML Chart Progress', $studentcount,
817: 'inline',undef,'Statistics','stats_status');
818: #
819: &Apache::lonhtmlcommon::Update_PrgWin($r,\%prog_state,
820: 'Processing first student');
821: return;
822: }
823:
824: sub html_outputstudent {
825: my ($r,$student) = @_;
826: my $Str = '';
827: return if (! defined($navmap));
828: #
829: if($count++ % 5 == 0 && $count > 0) {
830: $r->print("</pre><pre>");
831: }
832: # First, the @StudentData fields need to be listed
833: my @to_show = &get_student_fields_to_show();
834: foreach my $field (@to_show) {
835: my $title=$student->{$field};
836: # Deal with 'comments' - how I love special cases
837: if ($field eq 'comments') {
838: $title = '<a href="/adm/'.$student->{'domain'}.'/'.$student->{'username'}.'/'.'aboutme#coursecomment">'.&mt('Comments').'</a>';
839: }
840: my $base = length($title);
841: my $width=$Apache::lonstatistics::StudentData{$field}->{'width'};
842: $Str .= $title.' 'x($width-$base).$padding;
843: }
844: # Get ALL the students data
845: my %StudentsData;
846: my @tmp = &Apache::loncoursedata::get_current_state
847: ($student->{'username'},$student->{'domain'},undef,
848: $env{'request.course.id'});
849: if ((scalar @tmp > 0) && ($tmp[0] !~ /^error:(.*)/)) {
850: %StudentsData = @tmp;
851: } else {
852: my $error = $1;
853: if (scalar(@tmp) < 1) {
854: $Str .= '<span class="LC_warning">'
855: .&mt('No Course Data')
856: .'</span>'."\n";
857: } else {
858: $Str .= '<span class="LC_error">'
859: .&mt('Error getting student data ([_1])',$error)
860: .'</span>'."\n";
861: }
862: $nodata_count++;
863: $r->print($Str);
864: $r->rflush();
865: return;
866: }
867: #
868: # By sequence build up the data
869: my $studentstats;
870: my $PerformanceStr = '';
871: foreach my $seq (@sequences) {
872: my $symb = $seq->symb;
873: my ($performance,$performance_length,$score,$seq_max,$rawdata);
874: if ($chosen_output->{'tries'}) {
875: ($performance,$performance_length,$score,$seq_max,$rawdata) =
876: &student_tries_on_sequence($student,\%StudentsData,
877: $navmap,$seq,$show_links);
878: } else {
879: ($performance,$performance_length,$score,$seq_max,$rawdata) =
880: &student_performance_on_sequence($student,\%StudentsData,
881: $navmap,$seq,$show_links,
882: $chosen_output->{ignore_weight});
883: }
884: my $ratio='';
885: if ($chosen_output->{'every_problem'} &&
886: $chosen_output->{'sequence_sum'}) {
887: $ratio .= ' ';
888: }
889: if ($chosen_output->{'sequence_sum'} && $score ne ' ') {
890: my $score .= sprintf("%3.0f",$score);
891: $ratio .= (' 'x(3-length($score))).$score;
892: } elsif($chosen_output->{'sequence_sum'}) {
893: $ratio .= ' 'x3;
894: }
895: if ($chosen_output->{'sequence_max'}) {
896: if ($chosen_output->{'sequence_sum'}) {
897: $ratio .= '/';
898: }
899: $ratio .= sprintf("%3.0f",$seq_max);
900: }
901: #
902: if (! $chosen_output->{'every_problem'}) {
903: $performance = '';
904: $performance_length=0;
905: }
906: $performance .= ' 'x($width{$symb}->{'width_total'} -
907: $performance_length -
908: $width{$symb}->{'width_sum'}).
909: $ratio;
910: #
911: $Str .= $performance.$padding;
912: #
913: $studentstats->{$symb}->{'score'}= $score;
914: $studentstats->{$symb}->{'max'} = $seq_max;
915: }
916: #
917: # Total it up and store the statistics info.
918: my ($score,$max);
919: while (my ($symb,$seq_stats) = each (%{$studentstats})) {
920: $Statistics->{$symb}->{'score'} += $seq_stats->{'score'};
921: if ($Statistics->{$symb}->{'max'} < $seq_stats->{'max'}) {
922: $Statistics->{$symb}->{'max'} = $seq_stats->{'max'};
923: }
924: if ($seq_stats->{'score'} ne ' ') {
925: $score += $seq_stats->{'score'};
926: $Statistics->{$symb}->{'num_students'}++;
927: }
928: $max += $seq_stats->{'max'};
929: }
930: if (! defined($score)) {
931: $score = ' ' x $total_sum_width;
932: } else {
933: $score = sprintf("%.0f",$score);
934: $score = (' 'x(3-length($score))).$score;
935: }
936: $Str .= ' '.' 'x($total_sum_width-length($score)).$score.' / '.$max;
937: $Str .= " \n";
938: #
939: $r->print($Str);
940: #
941: $r->rflush();
942: &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,'last student');
943: return;
944: }
945:
946: sub html_finish {
947: my ($r) = @_;
948: return if (! defined($navmap));
949: #
950: # Check for suppressed output and close the progress window if so
951: $r->print("</pre>\n");
952: if ($chosen_output->{'summary_table'}) {
953: if ($single_student_mode) {
954: $r->print(&SingleStudentTotal());
955: } else {
956: $r->print(&StudentAverageTotal());
957: }
958: }
959: $r->rflush();
960: &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
961: &html_cleanup();
962: return;
963: }
964:
965: sub StudentAverageTotal {
966: my $Str = '<h3>'.&mt('Summary Tables').'</h3>'.$/;
967: $Str .= &Apache::loncommon::start_data_table();
968: $Str .= &Apache::loncommon::start_data_table_header_row().
969: '<th>'.&mt('Title').'</th>'.
970: '<th>'.&mt('Average').'</th>'.
971: '<th>'.&mt('Maximum').'</th>'.
972: &Apache::loncommon::end_data_table_header_row().$/;
973: foreach my $seq (@sequences) {
974: my $symb = $seq->symb;
975: my $ave;
976: my $num_students = $Statistics->{$symb}->{'num_students'};
977: if ($num_students > 0) {
978: $ave = int(100*
979: ($Statistics->{$symb}->{'score'}/$num_students)
980: )/100;
981: } else {
982: $ave = 0;
983: }
984: my $max = $Statistics->{$symb}->{'max'};
985: $ave = sprintf("%.2f",$ave);
986: $Str .= &Apache::loncommon::start_data_table_row().
987: '<td>'.$seq->compTitle.'</td>'.
988: '<td align="right">'.$ave.' </td>'.
989: '<td align="right">'.$max.' '.'</td>'.
990: &Apache::loncommon::end_data_table_row()."\n";
991: }
992: $Str .= &Apache::loncommon::end_data_table()."\n";
993: return $Str;
994: }
995:
996: sub SingleStudentTotal {
997: return if (! defined($navmap));
998: my $student = &Apache::lonstatistics::current_student();
999: my $Str = '<h3>'.&mt('Summary table for [_1] ([_2])',
1000: $student->{'fullname'},
1001: $student->{'username'}.':'.$student->{'domain'}).'</h3>';
1002: $Str .= $/;
1003: $Str .= &Apache::loncommon::start_data_table()."\n";
1004: $Str .=
1005: &Apache::loncommon::start_data_table_header_row().
1006: '<th>'.&mt('Sequence or Folder').'</th>';
1007: if ($chosen_output->{'base'} eq 'tries') {
1008: $Str .= '<th>'.&mt('Parts Correct').'</th>';
1009: } else {
1010: $Str .= '<th>'.&mt('Score').'</th>';
1011: }
1012: $Str .= '<th>'.&mt('Maximum').'</th>'.
1013: &Apache::loncommon::end_data_table_header_row()."\n";
1014: my $total = 0;
1015: my $total_max = 0;
1016: foreach my $seq (@sequences) {
1017: my $value = $Statistics->{$seq->symb}->{'score'};
1018: my $max = $Statistics->{$seq->symb}->{'max'};
1019: $Str .= &Apache::loncommon::start_data_table_row().
1020: '<td>'.&HTML::Entities::encode($seq->compTitle).'</td>'.
1021: '<td align="right">'.$value.'</td>'.
1022: '<td align="right">'.$max.'</td>'.
1023: &Apache::loncommon::end_data_table_row()."\n";
1024: $total += $value;
1025: $total_max +=$max;
1026: }
1027: $Str .= &Apache::loncommon::start_data_table_row().
1028: '<td><b>'.&mt('Total').'</b></td>'.
1029: '<td align="right">'.$total.'</td>'.
1030: '<td align="right">'.$total_max.'</td>'.
1031: &Apache::loncommon::end_data_table_row()."\n";
1032: $Str .= &Apache::loncommon::end_data_table()."\n";
1033: return $Str;
1034: }
1035:
1036: }
1037:
1038: #######################################################
1039: #######################################################
1040:
1041: =pod
1042:
1043: =head2 EXCEL subroutines
1044:
1045: =item &excel_initialize($r)
1046:
1047: =item &excel_outputstudent($r,$student)
1048:
1049: =item &excel_finish($r)
1050:
1051: =cut
1052:
1053: #######################################################
1054: #######################################################
1055: {
1056:
1057: my $excel_sheet;
1058: my $excel_workbook;
1059: my $format;
1060:
1061: my $filename;
1062: my $rows_output;
1063: my $cols_output;
1064:
1065: my %prog_state; # progress window state
1066: my $request_aborted;
1067:
1068: my $total_formula;
1069: my $maximum_formula;
1070: my %formula_data;
1071:
1072: my $navmap;
1073: my @sequences;
1074:
1075: sub excel_cleanup {
1076: #
1077: undef ($excel_sheet);
1078: undef ($excel_workbook);
1079: undef ($filename);
1080: undef ($rows_output);
1081: undef ($cols_output);
1082: undef (%prog_state);
1083: undef ($request_aborted);
1084: undef ($total_formula);
1085: undef ($maximum_formula);
1086: #
1087: undef(%formula_data);
1088: #
1089: undef($navmap);
1090: undef(@sequences);
1091: }
1092:
1093: sub excel_initialize {
1094: my ($r) = @_;
1095:
1096: &excel_cleanup();
1097: ($navmap,@sequences) =
1098: &Apache::lonstatistics::selected_sequences_with_assessments();
1099: if (! ref($navmap)) {
1100: # Unable to get data, so bail out
1101: $r->print("<h3>".
1102: &mt('Unable to retrieve course information.').
1103: '</h3>');
1104: }
1105: #
1106: my $total_columns = scalar(&get_student_fields_to_show());
1107: my $num_students = scalar(@Apache::lonstatistics::Students);
1108: #
1109: foreach my $seq (@sequences) {
1110: if ($chosen_output->{'every_problem'}) {
1111: $total_columns+=&count_parts($navmap,$seq);
1112: }
1113: # Add 2 because we need a 'sequence_sum' and 'total' column for each
1114: $total_columns += 2;
1115: }
1116: my $too_many_cols_error_message =
1117: '<h2>'.&mt('Unable to Complete Request').'</h2>'.$/.
1118: '<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>'.$/.
1119: '<p>'.&mt('You may consider reducing the number of <b>Sequences or Folders</b> you have selected.').'</p>'.$/.
1120: '<p>'.&mt('LON-CAPA can produce <b>CSV</b> files of this data or Excel files of the <b>Scores Summary</b> data.').'</p>'.$/;
1121: if ($chosen_output->{'base'} eq 'tries' && $total_columns > 255) {
1122: $r->print($too_many_cols_error_message);
1123: $request_aborted = 1;
1124: }
1125: if ($chosen_output->{'base'} eq 'scores' && $total_columns > 255) {
1126: $r->print($too_many_cols_error_message);
1127: $request_aborted = 1;
1128: }
1129: return if ($request_aborted);
1130: #
1131: #
1132: $excel_workbook = undef;
1133: $excel_sheet = undef;
1134: #
1135: $rows_output = 0;
1136: $cols_output = 0;
1137: #
1138: # Determine rows
1139: my $header_row = $rows_output++;
1140: my $description_row = $rows_output++;
1141: my $notes_row = $rows_output++;
1142: $rows_output++; # blank row
1143: my $summary_header_row;
1144: if ($chosen_output->{'summary_table'}) {
1145: $summary_header_row = $rows_output++;
1146: $rows_output+= scalar(@sequences);
1147: $rows_output++;
1148: }
1149: my $sequence_name_row = $rows_output++;
1150: my $resource_name_row = $rows_output++;
1151: my $maximum_data_row = $rows_output++;
1152: if (! $chosen_output->{'maximum_row'}) {
1153: $rows_output--;
1154: }
1155: my $first_data_row = $rows_output++;
1156: #
1157: # Create sheet
1158: ($excel_workbook,$filename,$format)=
1159: &Apache::loncommon::create_workbook($r);
1160: return if (! defined($excel_workbook));
1161: #
1162: # Add a worksheet
1163: my $sheetname = $env{'course.'.$env{'request.course.id'}.'.description'};
1164: $sheetname = &Apache::loncommon::clean_excel_name($sheetname);
1165: $excel_sheet = $excel_workbook->addworksheet($sheetname);
1166: #
1167: # Put the course description in the header
1168: $excel_sheet->write($header_row,$cols_output++,
1169: $env{'course.'.$env{'request.course.id'}.'.description'},
1170: $format->{'h1'});
1171: $cols_output += 3;
1172: #
1173: # Put a description of the sections listed
1174: my $sectionstring = '';
1175: my @Sections = &Apache::lonstatistics::get_selected_sections();
1176: $excel_sheet->write($header_row,$cols_output++,
1177: &Apache::lonstatistics::section_and_enrollment_description('plaintext'),
1178: $format->{'h3'});
1179: #
1180: # Put the date in there too
1181: $excel_sheet->write($header_row,$cols_output++,
1182: &mt('Compiled on [_1]',&Apache::lonlocal::locallocaltime(time)),$format->{'h3'});
1183: #
1184: $cols_output = 0;
1185: $excel_sheet->write($description_row,$cols_output++,
1186: &mt($chosen_output->{'shortdesc'}),
1187: $format->{'b'});
1188: #
1189: $cols_output = 0;
1190: $excel_sheet->write($notes_row,$cols_output++,
1191: $chosen_output->{'non_html_notes'},
1192: $format->{'i'});
1193:
1194: ##############################################
1195: # Output headings for the raw data
1196: ##############################################
1197: #
1198: # Add the student headers
1199: $cols_output = 0;
1200: foreach my $field (&get_student_fields_to_show()) {
1201: $excel_sheet->write($resource_name_row,$cols_output++,$field,
1202: $format->{'bold'});
1203: }
1204: #
1205: # Add the remaining column headers
1206: my $total_formula_string = '=0';
1207: my $maximum_formula_string = '=0';
1208: foreach my $seq (@sequences) {
1209: my $symb = $seq->symb;
1210: $excel_sheet->write($sequence_name_row,,
1211: $cols_output,$seq->compTitle,$format->{'bold'});
1212: # Determine starting cell
1213: $formula_data{$symb}->{'Excel:startcell'}=
1214: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1215: ($first_data_row,$cols_output);
1216: $formula_data{$symb}->{'Excel:startcol'}=$cols_output;
1217: my $count = 0;
1218: if ($chosen_output->{'every_problem'}) {
1219: # Put the names of the problems and parts into the sheet
1220: foreach my $res (&get_resources($navmap,$seq)) {
1221: if (scalar(@{$res->parts}) > 1) {
1222: foreach my $part (@{$res->parts}) {
1223: $excel_sheet->write($resource_name_row,
1224: $cols_output++,
1225: $res->compTitle.' part '.$res->part_display($part),
1226: $format->{'bold'});
1227: $count++;
1228: }
1229: } else {
1230: $excel_sheet->write($resource_name_row,
1231: $cols_output++,
1232: $res->compTitle,$format->{'bold'});
1233: $count++;
1234: }
1235: }
1236: }
1237: # Determine ending cell
1238: if ($count <= 1) {
1239: $formula_data{$symb}->{'Excel:endcell'} = $formula_data{$symb}->{'Excel:startcell'};
1240: $formula_data{$symb}->{'Excel:endcol'} = $formula_data{$symb}->{'Excel:startcol'};
1241: } else {
1242: $formula_data{$symb}->{'Excel:endcell'} =
1243: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1244: ($first_data_row,$cols_output-1);
1245: $formula_data{$symb}->{'Excel:endcol'} = $cols_output-1;
1246: }
1247: # Create the formula for summing up this sequence
1248: if (! exists($formula_data{$symb}->{'Excel:endcell'}) ||
1249: ! defined($formula_data{$symb}->{'Excel:endcell'})) {
1250: $formula_data{$symb}->{'Excel:endcell'} = $formula_data{$symb}->{'Excel:startcell'};
1251: }
1252:
1253: my $start = $formula_data{$symb}->{'Excel:startcell'};
1254: my $end = $formula_data{$symb}->{'Excel:endcell'};
1255: $formula_data{$symb}->{'Excel:sum'}= $excel_sheet->store_formula
1256: ("=IF(COUNT($start\:$end),SUM($start\:$end),\"\")");
1257: # Determine cell the score is held in
1258: $formula_data{$symb}->{'Excel:scorecell'} =
1259: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1260: ($first_data_row,$cols_output);
1261: $formula_data{$symb}->{'Excel:scorecol'}=$cols_output;
1262: if ($chosen_output->{'base'} eq 'parts correct total') {
1263: $excel_sheet->write($resource_name_row,$cols_output++,
1264: &mt('parts correct'),
1265: $format->{'bold'});
1266: } elsif ($chosen_output->{'sequence_sum'}) {
1267: if ($chosen_output->{'correct'}) {
1268: # Only reporting the number correct, so do not call it score
1269: $excel_sheet->write($resource_name_row,$cols_output++,
1270: &mt('sum'),
1271: $format->{'bold'});
1272: } else {
1273: $excel_sheet->write($resource_name_row,$cols_output++,
1274: &mt('score'),
1275: $format->{'bold'});
1276: }
1277: }
1278: #
1279: $total_formula_string.='+'.
1280: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1281: ($first_data_row,$cols_output-1);
1282: if ($chosen_output->{'sequence_max'}) {
1283: $excel_sheet->write($resource_name_row,$cols_output,
1284: &mt('maximum'),
1285: $format->{'bold'});
1286: $formula_data{$symb}->{'Excel:maxcell'} =
1287: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1288: ($first_data_row,$cols_output);
1289: $formula_data{$symb}->{'Excel:maxcol'}=$cols_output;
1290: $maximum_formula_string.='+'.
1291: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1292: ($first_data_row,$cols_output);
1293: $cols_output++;
1294:
1295: }
1296: }
1297: if ($chosen_output->{'grand_total'}) {
1298: $excel_sheet->write($resource_name_row,$cols_output++,&mt('Total'),
1299: $format->{'bold'});
1300: }
1301: if ($chosen_output->{'grand_maximum'}) {
1302: $excel_sheet->write($resource_name_row,$cols_output++,&mt('Max. Total'),
1303: $format->{'bold'});
1304: }
1305: $total_formula = $excel_sheet->store_formula($total_formula_string);
1306: $maximum_formula = $excel_sheet->store_formula($maximum_formula_string);
1307: ##############################################
1308: # Output a row for MAX, if appropriate
1309: ##############################################
1310: if ($chosen_output->{'maximum_row'}) {
1311: $cols_output = 0;
1312: foreach my $field (&get_student_fields_to_show()) {
1313: if ($field eq 'username' || $field eq 'fullname' ||
1314: $field eq 'id') {
1315: $excel_sheet->write($maximum_data_row,$cols_output++,'Maximum',
1316: $format->{'bold'});
1317: } else {
1318: $excel_sheet->write($maximum_data_row,$cols_output++,'');
1319: }
1320: }
1321: #
1322: # Add the maximums for each sequence or assessment
1323: my %total_cell_translation;
1324: my %maximum_cell_translation;
1325: foreach my $seq (@sequences) {
1326: my $symb = $seq->symb;
1327: $cols_output=$formula_data{$symb}->{'Excel:startcol'};
1328: $total_cell_translation{$formula_data{$symb}->{'Excel:scorecell'}}=
1329: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1330: ($maximum_data_row,$formula_data{$symb}->{'Excel:scorecol'});
1331: $maximum_cell_translation{$formula_data{$symb}->{'Excel:maxcell'}}=
1332: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1333: ($maximum_data_row,$formula_data{$symb}->{'Excel:maxcol'});
1334: my $weight;
1335: my $max = 0;
1336: foreach my $resource (&get_resources($navmap,$seq)) {
1337: foreach my $part (@{$resource->parts}){
1338: $weight = 1;
1339: if ($chosen_output->{'scores'}) {
1340: $weight = &Apache::lonnet::EXT
1341: ('resource.'.$part.'.weight',$resource->symb,
1342: undef,undef,undef);
1343: if (!defined($weight) || ($weight eq '')) {
1344: $weight=1;
1345: }
1346: }
1347: if ($chosen_output->{'scores'} &&
1348: $chosen_output->{'every_problem'}) {
1349: $excel_sheet->write($maximum_data_row,$cols_output++,
1350: $weight);
1351: }
1352: $max += $weight;
1353: }
1354: }
1355: #
1356: if ($chosen_output->{'sequence_sum'} &&
1357: $chosen_output->{'every_problem'}) {
1358: my %replaceCells=
1359: ('^'.$formula_data{$symb}->{'Excel:startcell'}.':'.
1360: $formula_data{$symb}->{'Excel:endcell'}.'$' =>
1361: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell($maximum_data_row,$formula_data{$symb}->{'Excel:startcol'}).':'.
1362: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell($maximum_data_row,$formula_data{$symb}->{'Excel:endcol'}));
1363: $excel_sheet->repeat_formula($maximum_data_row,$cols_output++,
1364: $formula_data{$symb}->{'Excel:sum'},undef,
1365: %replaceCells, %replaceCells);
1366:
1367: } elsif ($chosen_output->{'sequence_sum'}) {
1368: $excel_sheet->write($maximum_data_row,$cols_output++,$max);
1369: }
1370: if ($chosen_output->{'sequence_max'}) {
1371: $excel_sheet->write($maximum_data_row,$cols_output++,$max);
1372: }
1373: #
1374: }
1375: if ($chosen_output->{'grand_total'}) {
1376: $excel_sheet->repeat_formula($maximum_data_row,$cols_output++,
1377: $total_formula,undef,
1378: %total_cell_translation);
1379: }
1380: if ($chosen_output->{'grand_maximum'}) {
1381: $excel_sheet->repeat_formula($maximum_data_row,$cols_output++,
1382: $maximum_formula,undef,
1383: %maximum_cell_translation);
1384: }
1385: } # End of MAXIMUM row output if ($chosen_output->{'maximum_row'}) {
1386: $rows_output = $first_data_row;
1387: ##############################################
1388: # Output summary table, which actually is above the sequence name row.
1389: ##############################################
1390: if ($chosen_output->{'summary_table'}) {
1391: $cols_output = 0;
1392: $excel_sheet->write($summary_header_row,$cols_output++,
1393: &mt('Summary Table'),$format->{'bold'});
1394: if ($chosen_output->{'maximum_row'}) {
1395: $excel_sheet->write($summary_header_row,$cols_output++,
1396: &mt('Maximum'),$format->{'bold'});
1397: }
1398: $excel_sheet->write($summary_header_row,$cols_output++,
1399: &mt('Average'),$format->{'bold'});
1400: $excel_sheet->write($summary_header_row,$cols_output++,
1401: &mt('Median'),$format->{'bold'});
1402: $excel_sheet->write($summary_header_row,$cols_output++,
1403: &mt('Std Dev'),$format->{'bold'});
1404: my $row = $summary_header_row+1;
1405: foreach my $seq (@sequences) {
1406: my $symb = $seq->symb;
1407: $cols_output = 0;
1408: $excel_sheet->write($row,$cols_output++,
1409: $seq->compTitle,
1410: $format->{'bold'});
1411: if ($chosen_output->{'maximum_row'}) {
1412: $excel_sheet->write
1413: ($row,$cols_output++,
1414: '='.
1415: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1416: ($maximum_data_row,$formula_data{$symb}->{'Excel:scorecol'})
1417: );
1418: }
1419: my $range =
1420: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1421: ($first_data_row,$formula_data{$symb}->{'Excel:scorecol'}).
1422: ':'.
1423: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1424: ($first_data_row+$num_students-1,$formula_data{$symb}->{'Excel:scorecol'});
1425: $excel_sheet->write($row,$cols_output++,
1426: '=AVERAGE('.$range.')');
1427: $excel_sheet->write($row,$cols_output++,
1428: '=MEDIAN('.$range.')');
1429: $excel_sheet->write($row,$cols_output++,
1430: '=STDEV('.$range.')');
1431: $row++;
1432: }
1433: }
1434: ##############################################
1435: # Take care of non-excel initialization
1436: ##############################################
1437: #
1438: # Let the user know what we are doing
1439: my $studentcount = scalar(@Apache::lonstatistics::Students);
1440: if ($env{'form.SelectedStudent'}) {
1441: $studentcount = '1';
1442: }
1443: $r->print('<p>'
1444: .&mt('Compiling Excel spreadsheet for [quant,_1,student]...',$studentcount)
1445: ."</p>\n"
1446: );
1447: $r->rflush();
1448: #
1449: # Initialize progress window
1450: %prog_state=&Apache::lonhtmlcommon::Create_PrgWin
1451: ($r,'Excel File Compilation Status',
1452: 'Excel File Compilation Progress', $studentcount,
1453: 'inline',undef,'Statistics','stats_status');
1454: #
1455: &Apache::lonhtmlcommon::Update_PrgWin($r,\%prog_state,
1456: 'Processing first student');
1457: return;
1458: }
1459:
1460: sub excel_outputstudent {
1461: my ($r,$student) = @_;
1462: if ($request_aborted || ! defined($navmap) || ! defined($excel_sheet)) {
1463: return;
1464: }
1465: $cols_output=0;
1466: #
1467: # Write out student data
1468: my @to_show = &get_student_fields_to_show();
1469: foreach my $field (@to_show) {
1470: my $value = $student->{$field};
1471: if ($field eq 'comments') {
1472: $value = &Apache::lonmsgdisplay::retrieve_instructor_comments
1473: ($student->{'username'},$student->{'domain'});
1474: }
1475: $excel_sheet->write($rows_output,$cols_output++,$value);
1476: }
1477: #
1478: # Get student assessment data
1479: my %StudentsData;
1480: my @tmp = &Apache::loncoursedata::get_current_state($student->{'username'},
1481: $student->{'domain'},
1482: undef,
1483: $env{'request.course.id'});
1484: if ((scalar @tmp > 0) && ($tmp[0] !~ /^error:/)) {
1485: %StudentsData = @tmp;
1486: }
1487: #
1488: # Write out sequence scores and totals data
1489: my %total_cell_translation;
1490: my %maximum_cell_translation;
1491: foreach my $seq (@sequences) {
1492: my $symb = $seq->symb;
1493: $cols_output = $formula_data{$symb}->{'Excel:startcol'};
1494: # Keep track of cells to translate in total cell
1495: $total_cell_translation{$formula_data{$symb}->{'Excel:scorecell'}} =
1496: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1497: ($rows_output,$formula_data{$symb}->{'Excel:scorecol'});
1498: # and maximum cell
1499: $maximum_cell_translation{$formula_data{$symb}->{'Excel:maxcell'}} =
1500: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1501: ($rows_output,$formula_data{$symb}->{'Excel:maxcol'});
1502: #
1503: my ($performance,$performance_length,$score,$seq_max,$rawdata);
1504: if ($chosen_output->{'tries'} || $chosen_output->{'correct'}){
1505: ($performance,$performance_length,$score,$seq_max,$rawdata) =
1506: &student_tries_on_sequence($student,\%StudentsData,
1507: $navmap,$seq,'no');
1508: } else {
1509: ($performance,$performance_length,$score,$seq_max,$rawdata) =
1510: &student_performance_on_sequence($student,\%StudentsData,
1511: $navmap,$seq,'no',
1512: $chosen_output->{ignore_weight});
1513: }
1514: if ($chosen_output->{'every_problem'}) {
1515: if ($chosen_output->{'correct'}) {
1516: # only indiciate if each item is correct or not
1517: foreach my $value (@$rawdata) {
1518: # positive means correct, 0 or negative means
1519: # incorrect
1520: $value = $value > 0 ? 1 : 0;
1521: $excel_sheet->write($rows_output,$cols_output++,$value);
1522: }
1523: } else {
1524: foreach my $value (@$rawdata) {
1525: if ($score eq ' ' || !defined($value)) {
1526: $cols_output++;
1527: } else {
1528: $excel_sheet->write($rows_output,$cols_output++,
1529: $value);
1530: }
1531: }
1532: }
1533: }
1534: if ($chosen_output->{'sequence_sum'} &&
1535: $chosen_output->{'every_problem'}) {
1536: # Write a formula for the sum of this sequence
1537: my %replaceCells=
1538: ('^'.$formula_data{$symb}->{'Excel:startcell'}.':'.$formula_data{$symb}->{'Excel:endcell'}.'$'
1539: =>
1540: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell($rows_output,$formula_data{$symb}->{'Excel:startcol'}).':'.
1541: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell($rows_output,$formula_data{$symb}->{'Excel:endcol'})
1542: );
1543: # The undef is for the format
1544: $excel_sheet->repeat_formula($rows_output,$cols_output++,
1545: $formula_data{$symb}->{'Excel:sum'},undef,
1546: %replaceCells, %replaceCells);
1547: } elsif ($chosen_output->{'sequence_sum'}) {
1548: if ($score eq ' ') {
1549: $cols_output++;
1550: } else {
1551: $excel_sheet->write($rows_output,$cols_output++,$score);
1552: }
1553: }
1554: if ($chosen_output->{'sequence_max'}) {
1555: $excel_sheet->write($rows_output,$cols_output++,$seq_max);
1556: }
1557: }
1558: #
1559: if ($chosen_output->{'grand_total'}) {
1560: $excel_sheet->repeat_formula($rows_output,$cols_output++,
1561: $total_formula,undef,
1562: %total_cell_translation);
1563: }
1564: if ($chosen_output->{'grand_maximum'}) {
1565: $excel_sheet->repeat_formula($rows_output,$cols_output++,
1566: $maximum_formula,undef,
1567: %maximum_cell_translation);
1568: }
1569: #
1570: # Bookkeeping
1571: $rows_output++;
1572: $cols_output=0;
1573: #
1574: # Update the progress window
1575: &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,'last student');
1576: return;
1577: }
1578:
1579: sub excel_finish {
1580: my ($r) = @_;
1581: if ($request_aborted || ! defined($navmap) || ! defined($excel_sheet)) {
1582: &excel_cleanup();
1583: return;
1584: }
1585: #
1586: # Write the excel file
1587: $excel_workbook->close();
1588: #
1589: # Close the progress window
1590: &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
1591: #
1592: # Tell the user where to get their excel file
1593: $r->print('<br />'.
1594: '<a href="'.$filename.'">'.&mt('Your Excel spreadsheet').'</a>'."\n");
1595: $r->rflush();
1596: &excel_cleanup();
1597: return;
1598: }
1599:
1600: }
1601: #######################################################
1602: #######################################################
1603:
1604: =pod
1605:
1606: =head2 CSV output routines
1607:
1608: =item &csv_initialize($r)
1609:
1610: =item &csv_outputstudent($r,$student)
1611:
1612: =item &csv_finish($r)
1613:
1614: =cut
1615:
1616: #######################################################
1617: #######################################################
1618: {
1619:
1620: my $outputfile;
1621: my $filename;
1622: my $request_aborted;
1623: my %prog_state; # progress window state
1624: my $navmap;
1625: my @sequences;
1626:
1627: sub csv_cleanup {
1628: undef($outputfile);
1629: undef($filename);
1630: undef($request_aborted);
1631: undef(%prog_state);
1632: #
1633: undef($navmap);
1634: undef(@sequences);
1635: }
1636:
1637: sub csv_initialize{
1638: my ($r) = @_;
1639:
1640: &csv_cleanup();
1641: ($navmap,@sequences) =
1642: &Apache::lonstatistics::selected_sequences_with_assessments();
1643: if (! ref($navmap)) {
1644: # Unable to get data, so bail out
1645: $r->print("<h3>".
1646: &mt('Unable to retrieve course information.').
1647: '</h3>');
1648: }
1649: #
1650: # Deal with unimplemented requests
1651: $request_aborted = undef;
1652: if ($chosen_output->{'base'} =~ /final table/) {
1653: $r->print(<<END);
1654: <h2>Unable to Complete Request</h2>
1655: <p>
1656: The <b>Summary Table (Scores)</b> option is not available for non-HTML output.
1657: </p>
1658: END
1659: $request_aborted = 1;
1660: }
1661: return if ($request_aborted);
1662: #
1663: # Initialize progress window
1664: my $studentcount = scalar(@Apache::lonstatistics::Students);
1665: %prog_state=&Apache::lonhtmlcommon::Create_PrgWin
1666: ($r,'CSV File Compilation Status',
1667: 'CSV File Compilation Progress', $studentcount,
1668: 'inline',undef,'Statistics','stats_status');
1669: #
1670: # Open a file
1671: ($outputfile,$filename) = &Apache::loncommon::create_text_file($r,'csv');
1672: if (! defined($outputfile)) { return ''; }
1673: #
1674: # Datestamp
1675: my $description = $env{'course.'.$env{'request.course.id'}.'.description'};
1676: print $outputfile '"'.&Apache::loncommon::csv_translate($description).'",'.
1677: '"'.&Apache::loncommon::csv_translate(scalar(localtime(time))).'"'.
1678: "\n";
1679: print $outputfile '"'.
1680: &Apache::loncommon::csv_translate
1681: (&Apache::lonstatistics::section_and_enrollment_description()).
1682: '"'."\n";
1683: foreach my $item ('shortdesc','non_html_notes') {
1684: next if (! exists($chosen_output->{$item}));
1685: print $outputfile
1686: '"'.&Apache::loncommon::csv_translate($chosen_output->{$item}).'"'.
1687: "\n";
1688: }
1689: #
1690: # Print out the headings
1691: my $sequence_row = '';
1692: my $resource_row = undef;
1693: foreach my $field (&get_student_fields_to_show()) {
1694: $sequence_row .='"",';
1695: $resource_row .= '"'.&Apache::loncommon::csv_translate($field).'",';
1696: }
1697: foreach my $seq (@sequences) {
1698: $sequence_row .= '"'.
1699: &Apache::loncommon::csv_translate($seq->compTitle).'",';
1700: my $count = 0;
1701: if ($chosen_output->{'every_problem'}) {
1702: foreach my $res (&get_resources($navmap,$seq)) {
1703: if (scalar(@{$res->parts}) < 1) {
1704: next;
1705: }
1706: foreach my $part (@{$res->parts}) {
1707: $resource_row .= '"'.
1708: &Apache::loncommon::csv_translate
1709: ($res->compTitle.', Part '.$res->part_display($part)).'",';
1710: $count++;
1711: }
1712: }
1713: }
1714: $sequence_row.='"",'x$count;
1715: if ($chosen_output->{'sequence_sum'}) {
1716: if($chosen_output->{'correct'}) {
1717: $resource_row .= '"'.&mt('sum').'",';
1718: } else {
1719: $resource_row .= '"'.&mt('score').'",';
1720: }
1721: }
1722: if ($chosen_output->{'sequence_max'}) {
1723: $sequence_row.= '"",';
1724: $resource_row .= '"'.&mt('maximum possible').'",';
1725: }
1726: }
1727: if ($chosen_output->{'grand_total'}) {
1728: $sequence_row.= '"",';
1729: $resource_row.= '"'.&mt('Total').'",';
1730: }
1731: if ($chosen_output->{'grand_maximum'}) {
1732: $sequence_row.= '"",';
1733: $resource_row.= '"'.&mt('Maximum').'",';
1734: }
1735: chomp($sequence_row);
1736: chomp($resource_row);
1737: print $outputfile $sequence_row."\n";
1738: print $outputfile $resource_row."\n";
1739: return;
1740: }
1741:
1742: sub csv_outputstudent {
1743: my ($r,$student) = @_;
1744: if ($request_aborted || ! defined($navmap) || ! defined($outputfile)) {
1745: return;
1746: }
1747: my $Str = '';
1748: #
1749: # Output student fields
1750: my @to_show = &get_student_fields_to_show();
1751: foreach my $field (@to_show) {
1752: my $value = $student->{$field};
1753: if ($field eq 'comments') {
1754: $value = &Apache::lonmsgdisplay::retrieve_instructor_comments
1755: ($student->{'username'},$student->{'domain'});
1756: }
1757: $Str .= '"'.&Apache::loncommon::csv_translate($value).'",';
1758: }
1759: #
1760: # Get student assessment data
1761: my %StudentsData;
1762: my @tmp = &Apache::loncoursedata::get_current_state($student->{'username'},
1763: $student->{'domain'},
1764: undef,
1765: $env{'request.course.id'});
1766: if ((scalar @tmp > 0) && ($tmp[0] !~ /^error:/)) {
1767: %StudentsData = @tmp;
1768: }
1769: #
1770: # Output performance data
1771: my $total = 0;
1772: my $maximum = 0;
1773: foreach my $seq (@sequences) {
1774: my ($performance,$performance_length,$score,$seq_max,$rawdata);
1775: if ($chosen_output->{'tries'}){
1776: ($performance,$performance_length,$score,$seq_max,$rawdata) =
1777: &student_tries_on_sequence($student,\%StudentsData,
1778: $navmap,$seq,'no');
1779: } else {
1780: ($performance,$performance_length,$score,$seq_max,$rawdata) =
1781: &student_performance_on_sequence($student,\%StudentsData,
1782: $navmap,$seq,'no',
1783: $chosen_output->{ignore_weight});
1784: }
1785: if ($chosen_output->{'every_problem'}) {
1786: if ($chosen_output->{'correct'}) {
1787: $score = 0;
1788: # Deal with number of parts correct data
1789: $Str .= '"'.join('","',( map { if ($_>0) {
1790: $score += 1;
1791: 1;
1792: } else {
1793: 0;
1794: }
1795: } @$rawdata)).'",';
1796: } else {
1797: $Str .= '"'.join('","',(@$rawdata)).'",';
1798: }
1799: }
1800: if ($chosen_output->{'sequence_sum'}) {
1801: $Str .= '"'.$score.'",';
1802: }
1803: if ($chosen_output->{'sequence_max'}) {
1804: $Str .= '"'.$seq_max.'",';
1805: }
1806: $total+=$score;
1807: $maximum += $seq_max;
1808: }
1809: if ($chosen_output->{'grand_total'}) {
1810: $Str .= '"'.$total.'",';
1811: }
1812: if ($chosen_output->{'grand_maximum'}) {
1813: $Str .= '"'.$maximum.'",';
1814: }
1815: chop($Str);
1816: $Str .= "\n";
1817: print $outputfile $Str;
1818: #
1819: # Update the progress window
1820: &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,'last student');
1821: return;
1822: }
1823:
1824: sub csv_finish {
1825: my ($r) = @_;
1826: if ($request_aborted || ! defined($navmap) || ! defined($outputfile)) {
1827: &csv_cleanup();
1828: return;
1829: }
1830: close($outputfile);
1831: #
1832: # Close the progress window
1833: &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
1834: #
1835: # Tell the user where to get their csv file
1836: $r->print('<br />'.
1837: '<a href="'.$filename.'">'.&mt('Your CSV file.').'</a>'."\n");
1838: $r->rflush();
1839: &csv_cleanup();
1840: return;
1841:
1842: }
1843:
1844: }
1845:
1846: # This function will return an HTML string including a star, with
1847: # a mouseover popup showing the "real" value. An optional second
1848: # argument lets you show something other than a star.
1849: sub show_star {
1850: my $popup = shift;
1851: my $symbol = shift || '*';
1852: # Escape the popup for JS.
1853: $popup =~ s/([^-a-zA-Z0-9:;,._ ()|!\/?=&*])/'\\' . sprintf("%lo", ord($1))/ge;
1854:
1855: return "<span class=\"LC_chrt_popup_exists\" onmouseover='popup_score(this, \"$popup\");return false;' onmouseout='popdown_score();return false;'>$symbol</span>";
1856: }
1857:
1858: #######################################################
1859: #######################################################
1860:
1861: =pod
1862:
1863: =item &StudentTriesOnSequence()
1864:
1865: Inputs:
1866:
1867: =over 4
1868:
1869: =item $student
1870:
1871: =item $studentdata Hash ref to all student data
1872:
1873: =item $seq Hash ref, the sequence we are working on
1874:
1875: =item $links if defined we will output links to each resource.
1876:
1877: =back
1878:
1879: =cut
1880:
1881: #######################################################
1882: #######################################################
1883: sub student_tries_on_sequence {
1884: my ($student,$studentdata,$navmap,$seq,$links) = @_;
1885: $links = 'no' if (! defined($links));
1886: my $Str = '';
1887: my ($sum,$max) = (0,0);
1888: my $performance_length = 0;
1889: my @TriesData = ();
1890: my $tries;
1891: my $hasdata = 0; # flag - true if the student has any data on the sequence
1892: foreach my $resource (&get_resources($navmap,$seq)) {
1893: my $resource_data = $studentdata->{$resource->symb};
1894: my $value = '';
1895: foreach my $partnum (@{$resource->parts()}) {
1896: $tries = undef;
1897: $max++;
1898: $performance_length++;
1899: my $symbol = ' '; # default to space
1900: #
1901: my $awarded = 0;
1902: if (exists($resource_data->{'resource.'.$partnum.'.awarded'})) {
1903: $awarded = $resource_data->{'resource.'.$partnum.'.awarded'};
1904: $awarded = 0 if (! $awarded);
1905: }
1906: #
1907: my $status = '';
1908: if (exists($resource_data->{'resource.'.$partnum.'.solved'})) {
1909: $status = $resource_data->{'resource.'.$partnum.'.solved'};
1910: }
1911: #
1912: my $tries = 0;
1913: if(exists($resource_data->{'resource.'.$partnum.'.tries'})) {
1914: $tries = $resource_data->{'resource.'.$partnum.'.tries'};
1915: $hasdata =1;
1916: }
1917: #
1918: if ($awarded > 0) {
1919: # The student has gotten the problem correct to some degree
1920: if ($status eq 'excused') {
1921: $symbol = 'x';
1922: $max--;
1923: } elsif ($status eq 'correct_by_override' && !$resource->is_task()) {
1924: $symbol = '+';
1925: $sum++;
1926: } elsif ($tries > 0) {
1927: if ($tries > 9) {
1928: $symbol = show_star($tries);
1929: } else {
1930: $symbol = $tries;
1931: }
1932: $sum++;
1933: } else {
1934: $symbol = '+';
1935: $sum++;
1936: }
1937: } else {
1938: # The student has the problem incorrect or it is ungraded
1939: if ($status eq 'excused') {
1940: $symbol = 'x';
1941: $max--;
1942: } elsif ($status eq 'incorrect_by_override') {
1943: $symbol = '-';
1944: } elsif ($status eq 'ungraded_attempted') {
1945: $symbol = 'u';
1946: } elsif ($status eq 'incorrect_attempted' ||
1947: $tries > 0) {
1948: $symbol = '.';
1949: } else {
1950: # Problem is wrong and has not been attempted.
1951: $symbol=' ';
1952: }
1953: }
1954: #
1955: if (! defined($tries)) {
1956: $tries = 0;
1957: }
1958: if ($status =~ /^(incorrect|ungraded)/) {
1959: # Bug 3390: show '-' for tries on incorrect problems
1960: # (csv & excel only)
1961: push(@TriesData,-$tries);
1962: } else {
1963: push (@TriesData,$tries);
1964: }
1965: #
1966: if ( ($links eq 'yes' && $symbol ne ' ') ||
1967: ($links eq 'all')) {
1968: my $link = '/adm/grades'.
1969: '?symb='.&escape($resource->shown_symb).
1970: '&student='.$student->{'username'}.
1971: '&userdom='.$student->{'domain'}.
1972: '&command=submission';
1973: $symbol = &link($symbol, $link);
1974: }
1975: $value .= $symbol;
1976: }
1977: $Str .= $value;
1978: }
1979: if ($seq->randompick()) {
1980: $max = $seq->randompick();
1981: }
1982: if (! $hasdata && $sum == 0) {
1983: $sum = ' ';
1984: }
1985: return ($Str,$performance_length,$sum,$max,\@TriesData);
1986: }
1987:
1988: =pod
1989:
1990: =item &link
1991:
1992: Inputs:
1993:
1994: =over 4
1995:
1996: =item $text
1997:
1998: =item $target
1999:
2000: =back
2001:
2002: Takes the text and creates a link to the $text that honors
2003: the value of 'new window' if clicked on, but uses a real
2004: 'href' so middle and right clicks still work.
2005:
2006: $target and $text are assumed to be already correctly escaped; i.e., it
2007: can be dumped out directly into the output stream as-is.
2008:
2009: =cut
2010:
2011: sub link {
2012: my ($text,$target) = @_;
2013: return
2014: "<a href='$target' onclick=\"t=this.href;if(new_window)"
2015: ."{window.open(t)}else{return void(window."
2016: ."location=t)};return false;\">$text</a>";
2017: }
2018:
2019: #######################################################
2020: #######################################################
2021:
2022: =pod
2023:
2024: =item &student_performance_on_sequence
2025:
2026: Inputs:
2027:
2028: =over 4
2029:
2030: =item $student
2031:
2032: =item $studentdata Hash ref to all student data
2033:
2034: =item $seq Hash ref, the sequence we are working on
2035:
2036: =item $links if defined we will output links to each resource.
2037:
2038: =back
2039:
2040: =cut
2041:
2042: #######################################################
2043: #######################################################
2044: sub student_performance_on_sequence {
2045: my ($student,$studentdata,$navmap,$seq,$links,$awarded_only) = @_;
2046: $links = 'no' if (! defined($links));
2047: my $Str = ''; # final result string
2048: my ($score,$max) = (0,0);
2049: my $performance_length = 0;
2050: my $symbol;
2051: my @ScoreData = ();
2052: my $partscore;
2053: my $hasdata = 0; # flag, 0 if there were no submissions on the sequence
2054: foreach my $resource (&get_resources($navmap,$seq)) {
2055: my $symb = $resource->symb;
2056: my $resource_data = $studentdata->{$symb};
2057: foreach my $part (@{$resource->parts()}) {
2058: $partscore = undef;
2059: my $weight;
2060: if (!$awarded_only){
2061: $weight = &Apache::lonnet::EXT('resource.'.$part.'.weight',
2062: $symb,
2063: $student->{'domain'},
2064: $student->{'username'},
2065: $student->{'section'});
2066: }
2067: if (!defined($weight) || ($weight eq '')) {
2068: $weight=1;
2069: }
2070: #
2071: $max += $weight; # see the 'excused' branch below...
2072: $performance_length++; # one character per part
2073: $symbol = ' '; # default to space
2074: #
2075: my $awarded;
2076: if (exists($resource_data->{'resource.'.$part.'.awarded'})) {
2077: $awarded = $resource_data->{'resource.'.$part.'.awarded'};
2078: $awarded = 0 if (! $awarded);
2079: $hasdata = 1;
2080: }
2081: #
2082: $partscore = &Apache::grades::compute_points($weight,$awarded);
2083: if (! defined($awarded)) {
2084: $partscore = undef;
2085: }
2086: $score += $partscore;
2087: $symbol = $partscore;
2088: if (abs($symbol - sprintf("%.0f",$symbol)) < 0.001) {
2089: $symbol = sprintf("%.0f",$symbol);
2090: }
2091: if (length($symbol) > 1) {
2092: $symbol = show_star($symbol);
2093: }
2094: if (exists($resource_data->{'resource.'.$part.'.solved'}) &&
2095: $resource_data->{'resource.'.$part.'.solved'} ne '') {
2096: my $status = $resource_data->{'resource.'.$part.'.solved'};
2097: if ($status eq 'excused') {
2098: $symbol = 'x';
2099: $max -= $weight; # Do not count 'excused' problems.
2100: } elsif ($status eq 'ungraded_attempted') {
2101: $symbol = 'u';
2102: }
2103: $hasdata = 1;
2104: } elsif ($resource_data->{'resource.'.$part.'.award'} eq 'DRAFT') {
2105: $symbol = 'd';
2106: $hasdata = 1;
2107: } elsif (!exists($resource_data->{'resource.'.$part.'.awarded'})){
2108: # Unsolved. Did they try?
2109: if (exists($resource_data->{'resource.'.$part.'.tries'})){
2110: $symbol = '.';
2111: $hasdata = 1;
2112: } else {
2113: $symbol = ' ';
2114: }
2115: }
2116: #
2117: if (! defined($partscore)) {
2118: $partscore = $symbol;
2119: }
2120: push (@ScoreData,$partscore);
2121: #
2122: if ( ($links eq 'yes' && $symbol ne ' ') || ($links eq 'all')) {
2123: my $link = '/adm/grades' .
2124: '?symb='.&escape($resource->shown_symb).
2125: '&student='.$student->{'username'}.
2126: '&userdom='.$student->{'domain'}.
2127: '&command=submission';
2128: $symbol = &link($symbol, $link);
2129: }
2130: $Str .= $symbol;
2131: }
2132: }
2133: if (! $hasdata && $score == 0) {
2134: $score = ' ';
2135: }
2136: return ($Str,$performance_length,$score,$max,\@ScoreData);
2137: }
2138:
2139: #######################################################
2140: #######################################################
2141:
2142: =pod
2143:
2144: =item &CreateLegend()
2145:
2146: This function returns a formatted string containing the legend for the
2147: chart. The legend describes the symbols used to represent grades for
2148: problems.
2149:
2150: =cut
2151:
2152: #######################################################
2153: #######################################################
2154: sub CreateLegend {
2155: my $Str = "<p><pre>".
2156: " digit score or number of tries to get correct ".
2157: " * correct by student in more than 9 tries\n".
2158: " + correct by hand grading or override\n".
2159: " - incorrect by override\n".
2160: " . incorrect attempted\n".
2161: " u ungraded attempted\n".
2162: " d draft answer saved but not submitted\n".
2163: " not attempted (blank field)\n".
2164: " x excused".
2165: "</pre><p>";
2166: return $Str;
2167: }
2168:
2169: #######################################################
2170: #######################################################
2171:
2172: =pod
2173:
2174: =back
2175:
2176: =cut
2177:
2178: #######################################################
2179: #######################################################
2180:
2181: 1;
2182:
2183: __END__
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