1: # The LearningOnline Network with CAPA
2: #
3: # $Id: lonstudentassessment.pm,v 1.157 2009/09/22 14:28:56 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: }
830: # First, the @StudentData fields need to be listed
831: my @to_show = &get_student_fields_to_show();
832: foreach my $field (@to_show) {
833: my $title=$student->{$field};
834: # Deal with 'comments' - how I love special cases
835: if ($field eq 'comments') {
836: $title = '<a href="/adm/'.$student->{'domain'}.'/'.$student->{'username'}.'/'.'aboutme#coursecomment">'.&mt('Comments').'</a>';
837: }
838: my $base = length($title);
839: my $width=$Apache::lonstatistics::StudentData{$field}->{'width'};
840: $Str .= $title.' 'x($width-$base).$padding;
841: }
842: # Get ALL the students data
843: my %StudentsData;
844: my @tmp = &Apache::loncoursedata::get_current_state
845: ($student->{'username'},$student->{'domain'},undef,
846: $env{'request.course.id'});
847: if ((scalar @tmp > 0) && ($tmp[0] !~ /^error:(.*)/)) {
848: %StudentsData = @tmp;
849: } else {
850: my $error = $1;
851: if (scalar(@tmp) < 1) {
852: $Str .= '<span class="LC_warning">'
853: .&mt('No Course Data')
854: .'</span>'."\n";
855: } else {
856: $Str .= '<span class="LC_error">'
857: .&mt('Error getting student data ([_1])',$error)
858: .'</span>'."\n";
859: }
860: $nodata_count++;
861: $r->print($Str);
862: $r->rflush();
863: return;
864: }
865: #
866: # By sequence build up the data
867: my $studentstats;
868: my $PerformanceStr = '';
869: foreach my $seq (@sequences) {
870: my $symb = $seq->symb;
871: my ($performance,$performance_length,$score,$seq_max,$rawdata);
872: if ($chosen_output->{'tries'}) {
873: ($performance,$performance_length,$score,$seq_max,$rawdata) =
874: &student_tries_on_sequence($student,\%StudentsData,
875: $navmap,$seq,$show_links);
876: } else {
877: ($performance,$performance_length,$score,$seq_max,$rawdata) =
878: &student_performance_on_sequence($student,\%StudentsData,
879: $navmap,$seq,$show_links,
880: $chosen_output->{ignore_weight});
881: }
882: my $ratio='';
883: if ($chosen_output->{'every_problem'} &&
884: $chosen_output->{'sequence_sum'}) {
885: $ratio .= ' ';
886: }
887: if ($chosen_output->{'sequence_sum'} && $score ne ' ') {
888: my $score .= sprintf("%3.2f",$score);
889: $ratio .= (' 'x(6-length($score))).$score;
890: } elsif($chosen_output->{'sequence_sum'}) {
891: $ratio .= ' 'x6;
892: }
893: if ($chosen_output->{'sequence_max'}) {
894: if ($chosen_output->{'sequence_sum'}) {
895: $ratio .= '/';
896: }
897: my $sequence_total=sprintf("%3.2f",$seq_max);
898: $ratio .= $sequence_total.(' 'x(6-length($sequence_total)));
899: }
900: #
901: if (! $chosen_output->{'every_problem'}) {
902: $performance = '';
903: $performance_length=0;
904: }
905: $performance .= ' 'x($width{$symb}->{'width_total'} -
906: $performance_length -
907: $width{$symb}->{'width_sum'}).
908: $ratio;
909: #
910: $Str .= $performance.$padding;
911: #
912: $studentstats->{$symb}->{'score'}= $score;
913: $studentstats->{$symb}->{'max'} = $seq_max;
914: }
915: #
916: # Total it up and store the statistics info.
917: my ($score,$max);
918: while (my ($symb,$seq_stats) = each (%{$studentstats})) {
919: $Statistics->{$symb}->{'score'} += $seq_stats->{'score'};
920: if ($Statistics->{$symb}->{'max'} < $seq_stats->{'max'}) {
921: $Statistics->{$symb}->{'max'} = $seq_stats->{'max'};
922: }
923: if ($seq_stats->{'score'} ne ' ') {
924: $score += $seq_stats->{'score'};
925: $Statistics->{$symb}->{'num_students'}++;
926: }
927: $max += $seq_stats->{'max'};
928: }
929: if (! defined($score)) {
930: $score = ' ' x $total_sum_width;
931: } else {
932: $score = sprintf("%.2f",$score);
933: $score = (' 'x(6-length($score))).$score;
934: }
935: $Str .= ' '.' 'x($total_sum_width-length($score)).$score.' / '.$max;
936: $Str .= " \n";
937: #
938: $r->print($Str);
939: #
940: $r->rflush();
941: &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,'last student');
942: return;
943: }
944:
945: sub html_finish {
946: my ($r) = @_;
947: return if (! defined($navmap));
948: #
949: # Check for suppressed output and close the progress window if so
950: $r->print("</pre>\n");
951: if ($chosen_output->{'summary_table'}) {
952: if ($single_student_mode) {
953: $r->print(&SingleStudentTotal());
954: } else {
955: $r->print(&StudentAverageTotal());
956: }
957: }
958: $r->rflush();
959: &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
960: &html_cleanup();
961: return;
962: }
963:
964: sub StudentAverageTotal {
965: my $Str = '<h3>'.&mt('Summary Tables').'</h3>'.$/;
966: $Str .= &Apache::loncommon::start_data_table();
967: $Str .= &Apache::loncommon::start_data_table_header_row().
968: '<th>'.&mt('Title').'</th>'.
969: '<th>'.&mt('Average').'</th>'.
970: '<th>'.&mt('Maximum').'</th>'.
971: &Apache::loncommon::end_data_table_header_row().$/;
972: foreach my $seq (@sequences) {
973: my $symb = $seq->symb;
974: my $ave;
975: my $num_students = $Statistics->{$symb}->{'num_students'};
976: if ($num_students > 0) {
977: $ave = int(100*
978: ($Statistics->{$symb}->{'score'}/$num_students)
979: )/100;
980: } else {
981: $ave = 0;
982: }
983: my $max = $Statistics->{$symb}->{'max'};
984: $ave = sprintf("%.2f",$ave);
985: $Str .= &Apache::loncommon::start_data_table_row().
986: '<td>'.$seq->compTitle.'</td>'.
987: '<td align="right">'.$ave.' </td>'.
988: '<td align="right">'.$max.' '.'</td>'.
989: &Apache::loncommon::end_data_table_row()."\n";
990: }
991: $Str .= &Apache::loncommon::end_data_table()."\n";
992: return $Str;
993: }
994:
995: sub SingleStudentTotal {
996: return if (! defined($navmap));
997: my $student = &Apache::lonstatistics::current_student();
998: my $Str = '<h3>'.&mt('Summary table for [_1] ([_2])',
999: $student->{'fullname'},
1000: $student->{'username'}.':'.$student->{'domain'}).'</h3>';
1001: $Str .= $/;
1002: $Str .= &Apache::loncommon::start_data_table()."\n";
1003: $Str .=
1004: &Apache::loncommon::start_data_table_header_row().
1005: '<th>'.&mt('Sequence or Folder').'</th>';
1006: if ($chosen_output->{'base'} eq 'tries') {
1007: $Str .= '<th>'.&mt('Parts Correct').'</th>';
1008: } else {
1009: $Str .= '<th>'.&mt('Score').'</th>';
1010: }
1011: $Str .= '<th>'.&mt('Maximum').'</th>'.
1012: &Apache::loncommon::end_data_table_header_row()."\n";
1013: my $total = 0;
1014: my $total_max = 0;
1015: foreach my $seq (@sequences) {
1016: my $value = $Statistics->{$seq->symb}->{'score'};
1017: my $max = $Statistics->{$seq->symb}->{'max'};
1018: $Str .= &Apache::loncommon::start_data_table_row().
1019: '<td>'.&HTML::Entities::encode($seq->compTitle).'</td>'.
1020: '<td align="right">'.$value.'</td>'.
1021: '<td align="right">'.$max.'</td>'.
1022: &Apache::loncommon::end_data_table_row()."\n";
1023: $total += $value;
1024: $total_max +=$max;
1025: }
1026: $Str .= &Apache::loncommon::start_data_table_row().
1027: '<td><b>'.&mt('Total').'</b></td>'.
1028: '<td align="right">'.$total.'</td>'.
1029: '<td align="right">'.$total_max.'</td>'.
1030: &Apache::loncommon::end_data_table_row()."\n";
1031: $Str .= &Apache::loncommon::end_data_table()."\n";
1032: return $Str;
1033: }
1034:
1035: }
1036:
1037: #######################################################
1038: #######################################################
1039:
1040: =pod
1041:
1042: =head2 EXCEL subroutines
1043:
1044: =item &excel_initialize($r)
1045:
1046: =item &excel_outputstudent($r,$student)
1047:
1048: =item &excel_finish($r)
1049:
1050: =cut
1051:
1052: #######################################################
1053: #######################################################
1054: {
1055:
1056: my $excel_sheet;
1057: my $excel_workbook;
1058: my $format;
1059:
1060: my $filename;
1061: my $rows_output;
1062: my $cols_output;
1063:
1064: my %prog_state; # progress window state
1065: my $request_aborted;
1066:
1067: my $total_formula;
1068: my $maximum_formula;
1069: my %formula_data;
1070:
1071: my $navmap;
1072: my @sequences;
1073:
1074: sub excel_cleanup {
1075: #
1076: undef ($excel_sheet);
1077: undef ($excel_workbook);
1078: undef ($filename);
1079: undef ($rows_output);
1080: undef ($cols_output);
1081: undef (%prog_state);
1082: undef ($request_aborted);
1083: undef ($total_formula);
1084: undef ($maximum_formula);
1085: #
1086: undef(%formula_data);
1087: #
1088: undef($navmap);
1089: undef(@sequences);
1090: }
1091:
1092: sub excel_initialize {
1093: my ($r) = @_;
1094:
1095: &excel_cleanup();
1096: ($navmap,@sequences) =
1097: &Apache::lonstatistics::selected_sequences_with_assessments();
1098: if (! ref($navmap)) {
1099: # Unable to get data, so bail out
1100: $r->print("<h3>".
1101: &mt('Unable to retrieve course information.').
1102: '</h3>');
1103: }
1104: #
1105: my $total_columns = scalar(&get_student_fields_to_show());
1106: my $num_students = scalar(@Apache::lonstatistics::Students);
1107: #
1108: foreach my $seq (@sequences) {
1109: if ($chosen_output->{'every_problem'}) {
1110: $total_columns+=&count_parts($navmap,$seq);
1111: }
1112: # Add 2 because we need a 'sequence_sum' and 'total' column for each
1113: $total_columns += 2;
1114: }
1115: my $too_many_cols_error_message =
1116: '<h2>'.&mt('Unable to Complete Request').'</h2>'.$/.
1117: '<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>'.$/.
1118: '<p>'.&mt('You may consider reducing the number of <b>Sequences or Folders</b> you have selected.').'</p>'.$/.
1119: '<p>'.&mt('LON-CAPA can produce <b>CSV</b> files of this data or Excel files of the <b>Scores Summary</b> data.').'</p>'.$/;
1120: if ($chosen_output->{'base'} eq 'tries' && $total_columns > 255) {
1121: $r->print($too_many_cols_error_message);
1122: $request_aborted = 1;
1123: }
1124: if ($chosen_output->{'base'} eq 'scores' && $total_columns > 255) {
1125: $r->print($too_many_cols_error_message);
1126: $request_aborted = 1;
1127: }
1128: return if ($request_aborted);
1129: #
1130: #
1131: $excel_workbook = undef;
1132: $excel_sheet = undef;
1133: #
1134: $rows_output = 0;
1135: $cols_output = 0;
1136: #
1137: # Determine rows
1138: my $header_row = $rows_output++;
1139: my $description_row = $rows_output++;
1140: my $notes_row = $rows_output++;
1141: $rows_output++; # blank row
1142: my $summary_header_row;
1143: if ($chosen_output->{'summary_table'}) {
1144: $summary_header_row = $rows_output++;
1145: $rows_output+= scalar(@sequences);
1146: $rows_output++;
1147: }
1148: my $sequence_name_row = $rows_output++;
1149: my $resource_name_row = $rows_output++;
1150: my $maximum_data_row = $rows_output++;
1151: if (! $chosen_output->{'maximum_row'}) {
1152: $rows_output--;
1153: }
1154: my $first_data_row = $rows_output++;
1155: #
1156: # Create sheet
1157: ($excel_workbook,$filename,$format)=
1158: &Apache::loncommon::create_workbook($r);
1159: return if (! defined($excel_workbook));
1160: #
1161: # Add a worksheet
1162: my $sheetname = $env{'course.'.$env{'request.course.id'}.'.description'};
1163: $sheetname = &Apache::loncommon::clean_excel_name($sheetname);
1164: $excel_sheet = $excel_workbook->addworksheet($sheetname);
1165: #
1166: # Put the course description in the header
1167: $excel_sheet->write($header_row,$cols_output++,
1168: $env{'course.'.$env{'request.course.id'}.'.description'},
1169: $format->{'h1'});
1170: $cols_output += 3;
1171: #
1172: # Put a description of the sections listed
1173: my $sectionstring = '';
1174: my @Sections = &Apache::lonstatistics::get_selected_sections();
1175: $excel_sheet->write($header_row,$cols_output++,
1176: &Apache::lonstatistics::section_and_enrollment_description('plaintext'),
1177: $format->{'h3'});
1178: #
1179: # Put the date in there too
1180: $excel_sheet->write($header_row,$cols_output++,
1181: &mt('Compiled on [_1]',&Apache::lonlocal::locallocaltime(time)),$format->{'h3'});
1182: #
1183: $cols_output = 0;
1184: $excel_sheet->write($description_row,$cols_output++,
1185: &mt($chosen_output->{'shortdesc'}),
1186: $format->{'b'});
1187: #
1188: $cols_output = 0;
1189: $excel_sheet->write($notes_row,$cols_output++,
1190: $chosen_output->{'non_html_notes'},
1191: $format->{'i'});
1192:
1193: ##############################################
1194: # Output headings for the raw data
1195: ##############################################
1196: #
1197: # Add the student headers
1198: $cols_output = 0;
1199: foreach my $field (&get_student_fields_to_show()) {
1200: $excel_sheet->write($resource_name_row,$cols_output++,$field,
1201: $format->{'bold'});
1202: }
1203: #
1204: # Add the remaining column headers
1205: my $total_formula_string = '=0';
1206: my $maximum_formula_string = '=0';
1207: foreach my $seq (@sequences) {
1208: my $symb = $seq->symb;
1209: $excel_sheet->write($sequence_name_row,,
1210: $cols_output,$seq->compTitle,$format->{'bold'});
1211: # Determine starting cell
1212: $formula_data{$symb}->{'Excel:startcell'}=
1213: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1214: ($first_data_row,$cols_output);
1215: $formula_data{$symb}->{'Excel:startcol'}=$cols_output;
1216: my $count = 0;
1217: if ($chosen_output->{'every_problem'}) {
1218: # Put the names of the problems and parts into the sheet
1219: foreach my $res (&get_resources($navmap,$seq)) {
1220: if (scalar(@{$res->parts}) > 1) {
1221: foreach my $part (@{$res->parts}) {
1222: $excel_sheet->write($resource_name_row,
1223: $cols_output++,
1224: $res->compTitle.' part '.$res->part_display($part),
1225: $format->{'bold'});
1226: $count++;
1227: }
1228: } else {
1229: $excel_sheet->write($resource_name_row,
1230: $cols_output++,
1231: $res->compTitle,$format->{'bold'});
1232: $count++;
1233: }
1234: }
1235: }
1236: # Determine ending cell
1237: if ($count <= 1) {
1238: $formula_data{$symb}->{'Excel:endcell'} = $formula_data{$symb}->{'Excel:startcell'};
1239: $formula_data{$symb}->{'Excel:endcol'} = $formula_data{$symb}->{'Excel:startcol'};
1240: } else {
1241: $formula_data{$symb}->{'Excel:endcell'} =
1242: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1243: ($first_data_row,$cols_output-1);
1244: $formula_data{$symb}->{'Excel:endcol'} = $cols_output-1;
1245: }
1246: # Create the formula for summing up this sequence
1247: if (! exists($formula_data{$symb}->{'Excel:endcell'}) ||
1248: ! defined($formula_data{$symb}->{'Excel:endcell'})) {
1249: $formula_data{$symb}->{'Excel:endcell'} = $formula_data{$symb}->{'Excel:startcell'};
1250: }
1251:
1252: my $start = $formula_data{$symb}->{'Excel:startcell'};
1253: my $end = $formula_data{$symb}->{'Excel:endcell'};
1254: $formula_data{$symb}->{'Excel:sum'}= $excel_sheet->store_formula
1255: ("=IF(COUNT($start\:$end),SUM($start\:$end),\"\")");
1256: # Determine cell the score is held in
1257: $formula_data{$symb}->{'Excel:scorecell'} =
1258: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1259: ($first_data_row,$cols_output);
1260: $formula_data{$symb}->{'Excel:scorecol'}=$cols_output;
1261: if ($chosen_output->{'base'} eq 'parts correct total') {
1262: $excel_sheet->write($resource_name_row,$cols_output++,
1263: &mt('parts correct'),
1264: $format->{'bold'});
1265: } elsif ($chosen_output->{'sequence_sum'}) {
1266: if ($chosen_output->{'correct'}) {
1267: # Only reporting the number correct, so do not call it score
1268: $excel_sheet->write($resource_name_row,$cols_output++,
1269: &mt('sum'),
1270: $format->{'bold'});
1271: } else {
1272: $excel_sheet->write($resource_name_row,$cols_output++,
1273: &mt('score'),
1274: $format->{'bold'});
1275: }
1276: }
1277: #
1278: $total_formula_string.='+'.
1279: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1280: ($first_data_row,$cols_output-1);
1281: if ($chosen_output->{'sequence_max'}) {
1282: $excel_sheet->write($resource_name_row,$cols_output,
1283: &mt('maximum'),
1284: $format->{'bold'});
1285: $formula_data{$symb}->{'Excel:maxcell'} =
1286: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1287: ($first_data_row,$cols_output);
1288: $formula_data{$symb}->{'Excel:maxcol'}=$cols_output;
1289: $maximum_formula_string.='+'.
1290: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1291: ($first_data_row,$cols_output);
1292: $cols_output++;
1293:
1294: }
1295: }
1296: if ($chosen_output->{'grand_total'}) {
1297: $excel_sheet->write($resource_name_row,$cols_output++,&mt('Total'),
1298: $format->{'bold'});
1299: }
1300: if ($chosen_output->{'grand_maximum'}) {
1301: $excel_sheet->write($resource_name_row,$cols_output++,&mt('Max. Total'),
1302: $format->{'bold'});
1303: }
1304: $total_formula = $excel_sheet->store_formula($total_formula_string);
1305: $maximum_formula = $excel_sheet->store_formula($maximum_formula_string);
1306: ##############################################
1307: # Output a row for MAX, if appropriate
1308: ##############################################
1309: if ($chosen_output->{'maximum_row'}) {
1310: $cols_output = 0;
1311: foreach my $field (&get_student_fields_to_show()) {
1312: if ($field eq 'username' || $field eq 'fullname' ||
1313: $field eq 'id') {
1314: $excel_sheet->write($maximum_data_row,$cols_output++,'Maximum',
1315: $format->{'bold'});
1316: } else {
1317: $excel_sheet->write($maximum_data_row,$cols_output++,'');
1318: }
1319: }
1320: #
1321: # Add the maximums for each sequence or assessment
1322: my %total_cell_translation;
1323: my %maximum_cell_translation;
1324: foreach my $seq (@sequences) {
1325: my $symb = $seq->symb;
1326: $cols_output=$formula_data{$symb}->{'Excel:startcol'};
1327: $total_cell_translation{$formula_data{$symb}->{'Excel:scorecell'}}=
1328: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1329: ($maximum_data_row,$formula_data{$symb}->{'Excel:scorecol'});
1330: $maximum_cell_translation{$formula_data{$symb}->{'Excel:maxcell'}}=
1331: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1332: ($maximum_data_row,$formula_data{$symb}->{'Excel:maxcol'});
1333: my $weight;
1334: my $max = 0;
1335: foreach my $resource (&get_resources($navmap,$seq)) {
1336: foreach my $part (@{$resource->parts}){
1337: $weight = 1;
1338: if ($chosen_output->{'scores'}) {
1339: $weight = &Apache::lonnet::EXT
1340: ('resource.'.$part.'.weight',$resource->symb,
1341: undef,undef,undef);
1342: if (!defined($weight) || ($weight eq '')) {
1343: $weight=1;
1344: }
1345: }
1346: if ($chosen_output->{'scores'} &&
1347: $chosen_output->{'every_problem'}) {
1348: $excel_sheet->write($maximum_data_row,$cols_output++,
1349: $weight);
1350: }
1351: $max += $weight;
1352: }
1353: }
1354: #
1355: if ($chosen_output->{'sequence_sum'} &&
1356: $chosen_output->{'every_problem'}) {
1357: my %replaceCells=
1358: ('^'.$formula_data{$symb}->{'Excel:startcell'}.':'.
1359: $formula_data{$symb}->{'Excel:endcell'}.'$' =>
1360: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell($maximum_data_row,$formula_data{$symb}->{'Excel:startcol'}).':'.
1361: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell($maximum_data_row,$formula_data{$symb}->{'Excel:endcol'}));
1362: $excel_sheet->repeat_formula($maximum_data_row,$cols_output++,
1363: $formula_data{$symb}->{'Excel:sum'},undef,
1364: %replaceCells, %replaceCells);
1365:
1366: } elsif ($chosen_output->{'sequence_sum'}) {
1367: $excel_sheet->write($maximum_data_row,$cols_output++,$max);
1368: }
1369: if ($chosen_output->{'sequence_max'}) {
1370: $excel_sheet->write($maximum_data_row,$cols_output++,$max);
1371: }
1372: #
1373: }
1374: if ($chosen_output->{'grand_total'}) {
1375: $excel_sheet->repeat_formula($maximum_data_row,$cols_output++,
1376: $total_formula,undef,
1377: %total_cell_translation);
1378: }
1379: if ($chosen_output->{'grand_maximum'}) {
1380: $excel_sheet->repeat_formula($maximum_data_row,$cols_output++,
1381: $maximum_formula,undef,
1382: %maximum_cell_translation);
1383: }
1384: } # End of MAXIMUM row output if ($chosen_output->{'maximum_row'}) {
1385: $rows_output = $first_data_row;
1386: ##############################################
1387: # Output summary table, which actually is above the sequence name row.
1388: ##############################################
1389: if ($chosen_output->{'summary_table'}) {
1390: $cols_output = 0;
1391: $excel_sheet->write($summary_header_row,$cols_output++,
1392: &mt('Summary Table'),$format->{'bold'});
1393: if ($chosen_output->{'maximum_row'}) {
1394: $excel_sheet->write($summary_header_row,$cols_output++,
1395: &mt('Maximum'),$format->{'bold'});
1396: }
1397: $excel_sheet->write($summary_header_row,$cols_output++,
1398: &mt('Average'),$format->{'bold'});
1399: $excel_sheet->write($summary_header_row,$cols_output++,
1400: &mt('Median'),$format->{'bold'});
1401: $excel_sheet->write($summary_header_row,$cols_output++,
1402: &mt('Std Dev'),$format->{'bold'});
1403: my $row = $summary_header_row+1;
1404: foreach my $seq (@sequences) {
1405: my $symb = $seq->symb;
1406: $cols_output = 0;
1407: $excel_sheet->write($row,$cols_output++,
1408: $seq->compTitle,
1409: $format->{'bold'});
1410: if ($chosen_output->{'maximum_row'}) {
1411: $excel_sheet->write
1412: ($row,$cols_output++,
1413: '='.
1414: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1415: ($maximum_data_row,$formula_data{$symb}->{'Excel:scorecol'})
1416: );
1417: }
1418: my $range =
1419: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1420: ($first_data_row,$formula_data{$symb}->{'Excel:scorecol'}).
1421: ':'.
1422: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1423: ($first_data_row+$num_students-1,$formula_data{$symb}->{'Excel:scorecol'});
1424: $excel_sheet->write($row,$cols_output++,
1425: '=AVERAGE('.$range.')');
1426: $excel_sheet->write($row,$cols_output++,
1427: '=MEDIAN('.$range.')');
1428: $excel_sheet->write($row,$cols_output++,
1429: '=STDEV('.$range.')');
1430: $row++;
1431: }
1432: }
1433: ##############################################
1434: # Take care of non-excel initialization
1435: ##############################################
1436: #
1437: # Let the user know what we are doing
1438: my $studentcount = scalar(@Apache::lonstatistics::Students);
1439: if ($env{'form.SelectedStudent'}) {
1440: $studentcount = '1';
1441: }
1442: $r->print('<p>'
1443: .&mt('Compiling Excel spreadsheet for [quant,_1,student]...',$studentcount)
1444: ."</p>\n"
1445: );
1446: $r->rflush();
1447: #
1448: # Initialize progress window
1449: %prog_state=&Apache::lonhtmlcommon::Create_PrgWin
1450: ($r,'Excel File Compilation Status',
1451: 'Excel File Compilation Progress', $studentcount,
1452: 'inline',undef,'Statistics','stats_status');
1453: #
1454: &Apache::lonhtmlcommon::Update_PrgWin($r,\%prog_state,
1455: 'Processing first student');
1456: return;
1457: }
1458:
1459: sub excel_outputstudent {
1460: my ($r,$student) = @_;
1461: if ($request_aborted || ! defined($navmap) || ! defined($excel_sheet)) {
1462: return;
1463: }
1464: $cols_output=0;
1465: #
1466: # Write out student data
1467: my @to_show = &get_student_fields_to_show();
1468: foreach my $field (@to_show) {
1469: my $value = $student->{$field};
1470: if ($field eq 'comments') {
1471: $value = &Apache::lonmsgdisplay::retrieve_instructor_comments
1472: ($student->{'username'},$student->{'domain'});
1473: }
1474: $excel_sheet->write($rows_output,$cols_output++,$value);
1475: }
1476: #
1477: # Get student assessment data
1478: my %StudentsData;
1479: my @tmp = &Apache::loncoursedata::get_current_state($student->{'username'},
1480: $student->{'domain'},
1481: undef,
1482: $env{'request.course.id'});
1483: if ((scalar @tmp > 0) && ($tmp[0] !~ /^error:/)) {
1484: %StudentsData = @tmp;
1485: }
1486: #
1487: # Write out sequence scores and totals data
1488: my %total_cell_translation;
1489: my %maximum_cell_translation;
1490: foreach my $seq (@sequences) {
1491: my $symb = $seq->symb;
1492: $cols_output = $formula_data{$symb}->{'Excel:startcol'};
1493: # Keep track of cells to translate in total cell
1494: $total_cell_translation{$formula_data{$symb}->{'Excel:scorecell'}} =
1495: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1496: ($rows_output,$formula_data{$symb}->{'Excel:scorecol'});
1497: # and maximum cell
1498: $maximum_cell_translation{$formula_data{$symb}->{'Excel:maxcell'}} =
1499: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1500: ($rows_output,$formula_data{$symb}->{'Excel:maxcol'});
1501: #
1502: my ($performance,$performance_length,$score,$seq_max,$rawdata);
1503: if ($chosen_output->{'tries'} || $chosen_output->{'correct'}){
1504: ($performance,$performance_length,$score,$seq_max,$rawdata) =
1505: &student_tries_on_sequence($student,\%StudentsData,
1506: $navmap,$seq,'no');
1507: } else {
1508: ($performance,$performance_length,$score,$seq_max,$rawdata) =
1509: &student_performance_on_sequence($student,\%StudentsData,
1510: $navmap,$seq,'no',
1511: $chosen_output->{ignore_weight});
1512: }
1513: if ($chosen_output->{'every_problem'}) {
1514: if ($chosen_output->{'correct'}) {
1515: # only indiciate if each item is correct or not
1516: foreach my $value (@$rawdata) {
1517: # positive means correct, 0 or negative means
1518: # incorrect
1519: $value = $value > 0 ? 1 : 0;
1520: $excel_sheet->write($rows_output,$cols_output++,$value);
1521: }
1522: } else {
1523: foreach my $value (@$rawdata) {
1524: if ($score eq ' ' || !defined($value)) {
1525: $cols_output++;
1526: } else {
1527: $excel_sheet->write($rows_output,$cols_output++,
1528: $value);
1529: }
1530: }
1531: }
1532: }
1533: if ($chosen_output->{'sequence_sum'} &&
1534: $chosen_output->{'every_problem'}) {
1535: # Write a formula for the sum of this sequence
1536: my %replaceCells=
1537: ('^'.$formula_data{$symb}->{'Excel:startcell'}.':'.$formula_data{$symb}->{'Excel:endcell'}.'$'
1538: =>
1539: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell($rows_output,$formula_data{$symb}->{'Excel:startcol'}).':'.
1540: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell($rows_output,$formula_data{$symb}->{'Excel:endcol'})
1541: );
1542: # The undef is for the format
1543: $excel_sheet->repeat_formula($rows_output,$cols_output++,
1544: $formula_data{$symb}->{'Excel:sum'},undef,
1545: %replaceCells, %replaceCells);
1546: } elsif ($chosen_output->{'sequence_sum'}) {
1547: if ($score eq ' ') {
1548: $cols_output++;
1549: } else {
1550: $excel_sheet->write($rows_output,$cols_output++,$score);
1551: }
1552: }
1553: if ($chosen_output->{'sequence_max'}) {
1554: $excel_sheet->write($rows_output,$cols_output++,$seq_max);
1555: }
1556: }
1557: #
1558: if ($chosen_output->{'grand_total'}) {
1559: $excel_sheet->repeat_formula($rows_output,$cols_output++,
1560: $total_formula,undef,
1561: %total_cell_translation);
1562: }
1563: if ($chosen_output->{'grand_maximum'}) {
1564: $excel_sheet->repeat_formula($rows_output,$cols_output++,
1565: $maximum_formula,undef,
1566: %maximum_cell_translation);
1567: }
1568: #
1569: # Bookkeeping
1570: $rows_output++;
1571: $cols_output=0;
1572: #
1573: # Update the progress window
1574: &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,'last student');
1575: return;
1576: }
1577:
1578: sub excel_finish {
1579: my ($r) = @_;
1580: if ($request_aborted || ! defined($navmap) || ! defined($excel_sheet)) {
1581: &excel_cleanup();
1582: return;
1583: }
1584: #
1585: # Write the excel file
1586: $excel_workbook->close();
1587: #
1588: # Close the progress window
1589: &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
1590: #
1591: # Tell the user where to get their excel file
1592: $r->print('<br />'.
1593: '<a href="'.$filename.'">'.&mt('Your Excel spreadsheet').'</a>'."\n");
1594: $r->rflush();
1595: &excel_cleanup();
1596: return;
1597: }
1598:
1599: }
1600: #######################################################
1601: #######################################################
1602:
1603: =pod
1604:
1605: =head2 CSV output routines
1606:
1607: =item &csv_initialize($r)
1608:
1609: =item &csv_outputstudent($r,$student)
1610:
1611: =item &csv_finish($r)
1612:
1613: =cut
1614:
1615: #######################################################
1616: #######################################################
1617: {
1618:
1619: my $outputfile;
1620: my $filename;
1621: my $request_aborted;
1622: my %prog_state; # progress window state
1623: my $navmap;
1624: my @sequences;
1625:
1626: sub csv_cleanup {
1627: undef($outputfile);
1628: undef($filename);
1629: undef($request_aborted);
1630: undef(%prog_state);
1631: #
1632: undef($navmap);
1633: undef(@sequences);
1634: }
1635:
1636: sub csv_initialize{
1637: my ($r) = @_;
1638:
1639: &csv_cleanup();
1640: ($navmap,@sequences) =
1641: &Apache::lonstatistics::selected_sequences_with_assessments();
1642: if (! ref($navmap)) {
1643: # Unable to get data, so bail out
1644: $r->print("<h3>".
1645: &mt('Unable to retrieve course information.').
1646: '</h3>');
1647: }
1648: #
1649: # Deal with unimplemented requests
1650: $request_aborted = undef;
1651: if ($chosen_output->{'base'} =~ /final table/) {
1652: $r->print(<<END);
1653: <h2>Unable to Complete Request</h2>
1654: <p>
1655: The <b>Summary Table (Scores)</b> option is not available for non-HTML output.
1656: </p>
1657: END
1658: $request_aborted = 1;
1659: }
1660: return if ($request_aborted);
1661: #
1662: # Initialize progress window
1663: my $studentcount = scalar(@Apache::lonstatistics::Students);
1664: %prog_state=&Apache::lonhtmlcommon::Create_PrgWin
1665: ($r,'CSV File Compilation Status',
1666: 'CSV File Compilation Progress', $studentcount,
1667: 'inline',undef,'Statistics','stats_status');
1668: #
1669: # Open a file
1670: ($outputfile,$filename) = &Apache::loncommon::create_text_file($r,'csv');
1671: if (! defined($outputfile)) { return ''; }
1672: #
1673: # Datestamp
1674: my $description = $env{'course.'.$env{'request.course.id'}.'.description'};
1675: print $outputfile '"'.&Apache::loncommon::csv_translate($description).'",'.
1676: '"'.&Apache::loncommon::csv_translate(scalar(localtime(time))).'"'.
1677: "\n";
1678: print $outputfile '"'.
1679: &Apache::loncommon::csv_translate
1680: (&Apache::lonstatistics::section_and_enrollment_description()).
1681: '"'."\n";
1682: foreach my $item ('shortdesc','non_html_notes') {
1683: next if (! exists($chosen_output->{$item}));
1684: print $outputfile
1685: '"'.&Apache::loncommon::csv_translate($chosen_output->{$item}).'"'.
1686: "\n";
1687: }
1688: #
1689: # Print out the headings
1690: my $sequence_row = '';
1691: my $resource_row = undef;
1692: foreach my $field (&get_student_fields_to_show()) {
1693: $sequence_row .='"",';
1694: $resource_row .= '"'.&Apache::loncommon::csv_translate($field).'",';
1695: }
1696: foreach my $seq (@sequences) {
1697: $sequence_row .= '"'.
1698: &Apache::loncommon::csv_translate($seq->compTitle).'",';
1699: my $count = 0;
1700: if ($chosen_output->{'every_problem'}) {
1701: foreach my $res (&get_resources($navmap,$seq)) {
1702: if (scalar(@{$res->parts}) < 1) {
1703: next;
1704: }
1705: foreach my $part (@{$res->parts}) {
1706: $resource_row .= '"'.
1707: &Apache::loncommon::csv_translate
1708: ($res->compTitle.', Part '.$res->part_display($part)).'",';
1709: $count++;
1710: }
1711: }
1712: }
1713: $sequence_row.='"",'x$count;
1714: if ($chosen_output->{'sequence_sum'}) {
1715: if($chosen_output->{'correct'}) {
1716: $resource_row .= '"'.&mt('sum').'",';
1717: } else {
1718: $resource_row .= '"'.&mt('score').'",';
1719: }
1720: }
1721: if ($chosen_output->{'sequence_max'}) {
1722: $sequence_row.= '"",';
1723: $resource_row .= '"'.&mt('maximum possible').'",';
1724: }
1725: }
1726: if ($chosen_output->{'grand_total'}) {
1727: $sequence_row.= '"",';
1728: $resource_row.= '"'.&mt('Total').'",';
1729: }
1730: if ($chosen_output->{'grand_maximum'}) {
1731: $sequence_row.= '"",';
1732: $resource_row.= '"'.&mt('Maximum').'",';
1733: }
1734: chomp($sequence_row);
1735: chomp($resource_row);
1736: print $outputfile $sequence_row."\n";
1737: print $outputfile $resource_row."\n";
1738: return;
1739: }
1740:
1741: sub csv_outputstudent {
1742: my ($r,$student) = @_;
1743: if ($request_aborted || ! defined($navmap) || ! defined($outputfile)) {
1744: return;
1745: }
1746: my $Str = '';
1747: #
1748: # Output student fields
1749: my @to_show = &get_student_fields_to_show();
1750: foreach my $field (@to_show) {
1751: my $value = $student->{$field};
1752: if ($field eq 'comments') {
1753: $value = &Apache::lonmsgdisplay::retrieve_instructor_comments
1754: ($student->{'username'},$student->{'domain'});
1755: }
1756: $Str .= '"'.&Apache::loncommon::csv_translate($value).'",';
1757: }
1758: #
1759: # Get student assessment data
1760: my %StudentsData;
1761: my @tmp = &Apache::loncoursedata::get_current_state($student->{'username'},
1762: $student->{'domain'},
1763: undef,
1764: $env{'request.course.id'});
1765: if ((scalar @tmp > 0) && ($tmp[0] !~ /^error:/)) {
1766: %StudentsData = @tmp;
1767: }
1768: #
1769: # Output performance data
1770: my $total = 0;
1771: my $maximum = 0;
1772: foreach my $seq (@sequences) {
1773: my ($performance,$performance_length,$score,$seq_max,$rawdata);
1774: if ($chosen_output->{'tries'}){
1775: ($performance,$performance_length,$score,$seq_max,$rawdata) =
1776: &student_tries_on_sequence($student,\%StudentsData,
1777: $navmap,$seq,'no');
1778: } else {
1779: ($performance,$performance_length,$score,$seq_max,$rawdata) =
1780: &student_performance_on_sequence($student,\%StudentsData,
1781: $navmap,$seq,'no',
1782: $chosen_output->{ignore_weight});
1783: }
1784: if ($chosen_output->{'every_problem'}) {
1785: if ($chosen_output->{'correct'}) {
1786: $score = 0;
1787: # Deal with number of parts correct data
1788: $Str .= '"'.join('","',( map { if ($_>0) {
1789: $score += 1;
1790: 1;
1791: } else {
1792: 0;
1793: }
1794: } @$rawdata)).'",';
1795: } else {
1796: $Str .= '"'.join('","',(@$rawdata)).'",';
1797: }
1798: }
1799: if ($chosen_output->{'sequence_sum'}) {
1800: $Str .= '"'.$score.'",';
1801: }
1802: if ($chosen_output->{'sequence_max'}) {
1803: $Str .= '"'.$seq_max.'",';
1804: }
1805: $total+=$score;
1806: $maximum += $seq_max;
1807: }
1808: if ($chosen_output->{'grand_total'}) {
1809: $Str .= '"'.$total.'",';
1810: }
1811: if ($chosen_output->{'grand_maximum'}) {
1812: $Str .= '"'.$maximum.'",';
1813: }
1814: chop($Str);
1815: $Str .= "\n";
1816: print $outputfile $Str;
1817: #
1818: # Update the progress window
1819: &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,'last student');
1820: return;
1821: }
1822:
1823: sub csv_finish {
1824: my ($r) = @_;
1825: if ($request_aborted || ! defined($navmap) || ! defined($outputfile)) {
1826: &csv_cleanup();
1827: return;
1828: }
1829: close($outputfile);
1830: #
1831: # Close the progress window
1832: &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
1833: #
1834: # Tell the user where to get their csv file
1835: $r->print('<br />'.
1836: '<a href="'.$filename.'">'.&mt('Your CSV file.').'</a>'."\n");
1837: $r->rflush();
1838: &csv_cleanup();
1839: return;
1840:
1841: }
1842:
1843: }
1844:
1845: # This function will return an HTML string including a star, with
1846: # a mouseover popup showing the "real" value. An optional second
1847: # argument lets you show something other than a star.
1848: sub show_star {
1849: my $popup = shift;
1850: my $symbol = shift || '*';
1851: # Escape the popup for JS.
1852: $popup =~ s/([^-a-zA-Z0-9:;,._ ()|!\/?=&*])/'\\' . sprintf("%lo", ord($1))/ge;
1853:
1854: return "<span class=\"LC_chrt_popup_exists\" onmouseover='popup_score(this, \"$popup\");return false;' onmouseout='popdown_score();return false;'>$symbol</span>";
1855: }
1856:
1857: #######################################################
1858: #######################################################
1859:
1860: =pod
1861:
1862: =item &StudentTriesOnSequence()
1863:
1864: Inputs:
1865:
1866: =over 4
1867:
1868: =item $student
1869:
1870: =item $studentdata Hash ref to all student data
1871:
1872: =item $seq Hash ref, the sequence we are working on
1873:
1874: =item $links if defined we will output links to each resource.
1875:
1876: =back
1877:
1878: =cut
1879:
1880: #######################################################
1881: #######################################################
1882: sub student_tries_on_sequence {
1883: my ($student,$studentdata,$navmap,$seq,$links) = @_;
1884: $links = 'no' if (! defined($links));
1885: my $Str = '';
1886: my ($sum,$max) = (0,0);
1887: my $performance_length = 0;
1888: my @TriesData = ();
1889: my $tries;
1890: my $hasdata = 0; # flag - true if the student has any data on the sequence
1891: foreach my $resource (&get_resources($navmap,$seq)) {
1892: my $resource_data = $studentdata->{$resource->symb};
1893: my $value = '';
1894: foreach my $partnum (@{$resource->parts()}) {
1895: $tries = undef;
1896: $max++;
1897: $performance_length++;
1898: my $symbol = ' '; # default to space
1899: #
1900: my $awarded = 0;
1901: if (exists($resource_data->{'resource.'.$partnum.'.awarded'})) {
1902: $awarded = $resource_data->{'resource.'.$partnum.'.awarded'};
1903: $awarded = 0 if (! $awarded);
1904: }
1905: #
1906: my $status = '';
1907: if (exists($resource_data->{'resource.'.$partnum.'.solved'})) {
1908: $status = $resource_data->{'resource.'.$partnum.'.solved'};
1909: }
1910: #
1911: my $tries = 0;
1912: if(exists($resource_data->{'resource.'.$partnum.'.tries'})) {
1913: $tries = $resource_data->{'resource.'.$partnum.'.tries'};
1914: $hasdata =1;
1915: }
1916: #
1917: if ($awarded > 0) {
1918: # The student has gotten the problem correct to some degree
1919: if ($status eq 'excused') {
1920: $symbol = 'x';
1921: $max--;
1922: } elsif ($status eq 'correct_by_override' && !$resource->is_task()) {
1923: $symbol = '+';
1924: $sum++;
1925: } elsif ($tries > 0) {
1926: if ($tries > 9) {
1927: $symbol = show_star($tries);
1928: } else {
1929: $symbol = $tries;
1930: }
1931: $sum++;
1932: } else {
1933: $symbol = '+';
1934: $sum++;
1935: }
1936: } else {
1937: # The student has the problem incorrect or it is ungraded
1938: if ($status eq 'excused') {
1939: $symbol = 'x';
1940: $max--;
1941: } elsif ($status eq 'incorrect_by_override') {
1942: $symbol = '-';
1943: } elsif ($status eq 'ungraded_attempted') {
1944: $symbol = 'u';
1945: } elsif ($status eq 'incorrect_attempted' ||
1946: $tries > 0) {
1947: $symbol = '.';
1948: } else {
1949: # Problem is wrong and has not been attempted.
1950: $symbol=' ';
1951: }
1952: }
1953: #
1954: if (! defined($tries)) {
1955: $tries = 0;
1956: }
1957: if ($status =~ /^(incorrect|ungraded)/) {
1958: # Bug 3390: show '-' for tries on incorrect problems
1959: # (csv & excel only)
1960: push(@TriesData,-$tries);
1961: } else {
1962: push (@TriesData,$tries);
1963: }
1964: #
1965: if ( ($links eq 'yes' && $symbol ne ' ') ||
1966: ($links eq 'all')) {
1967: my $link = '/adm/grades'.
1968: '?symb='.&escape($resource->shown_symb).
1969: '&student='.$student->{'username'}.
1970: '&userdom='.$student->{'domain'}.
1971: '&command=submission';
1972: $symbol = &link($symbol, $link);
1973: }
1974: $value .= $symbol;
1975: }
1976: $Str .= $value;
1977: }
1978: if ($seq->randompick()) {
1979: $max = $seq->randompick();
1980: }
1981: if (! $hasdata && $sum == 0) {
1982: $sum = ' ';
1983: }
1984: return ($Str,$performance_length,$sum,$max,\@TriesData);
1985: }
1986:
1987: =pod
1988:
1989: =item &link
1990:
1991: Inputs:
1992:
1993: =over 4
1994:
1995: =item $text
1996:
1997: =item $target
1998:
1999: =back
2000:
2001: Takes the text and creates a link to the $text that honors
2002: the value of 'new window' if clicked on, but uses a real
2003: 'href' so middle and right clicks still work.
2004:
2005: $target and $text are assumed to be already correctly escaped; i.e., it
2006: can be dumped out directly into the output stream as-is.
2007:
2008: =cut
2009:
2010: sub link {
2011: my ($text,$target) = @_;
2012: return
2013: "<a href='$target' onclick=\"t=this.href;if(new_window)"
2014: ."{window.open(t)}else{return void(window."
2015: ."location=t)};return false;\">$text</a>";
2016: }
2017:
2018: #######################################################
2019: #######################################################
2020:
2021: =pod
2022:
2023: =item &student_performance_on_sequence
2024:
2025: Inputs:
2026:
2027: =over 4
2028:
2029: =item $student
2030:
2031: =item $studentdata Hash ref to all student data
2032:
2033: =item $seq Hash ref, the sequence we are working on
2034:
2035: =item $links if defined we will output links to each resource.
2036:
2037: =back
2038:
2039: =cut
2040:
2041: #######################################################
2042: #######################################################
2043: sub student_performance_on_sequence {
2044: my ($student,$studentdata,$navmap,$seq,$links,$awarded_only) = @_;
2045: $links = 'no' if (! defined($links));
2046: my $Str = ''; # final result string
2047: my ($score,$max) = (0,0);
2048: my $performance_length = 0;
2049: my $symbol;
2050: my @ScoreData = ();
2051: my $partscore;
2052: my $hasdata = 0; # flag, 0 if there were no submissions on the sequence
2053: foreach my $resource (&get_resources($navmap,$seq)) {
2054: my $symb = $resource->symb;
2055: my $resource_data = $studentdata->{$symb};
2056: foreach my $part (@{$resource->parts()}) {
2057: $partscore = undef;
2058: my $weight;
2059: if (!$awarded_only){
2060: $weight = &Apache::lonnet::EXT('resource.'.$part.'.weight',
2061: $symb,
2062: $student->{'domain'},
2063: $student->{'username'},
2064: $student->{'section'});
2065: }
2066: if (!defined($weight) || ($weight eq '')) {
2067: $weight=1;
2068: }
2069: #
2070: $max += $weight; # see the 'excused' branch below...
2071: $performance_length++; # one character per part
2072: $symbol = ' '; # default to space
2073: #
2074: my $awarded;
2075: if (exists($resource_data->{'resource.'.$part.'.awarded'})) {
2076: $awarded = $resource_data->{'resource.'.$part.'.awarded'};
2077: $awarded = 0 if (! $awarded);
2078: $hasdata = 1;
2079: }
2080: #
2081: $partscore = &Apache::grades::compute_points($weight,$awarded);
2082: if (! defined($awarded)) {
2083: $partscore = undef;
2084: }
2085: $score += $partscore;
2086: $symbol = $partscore;
2087: if (abs($symbol - sprintf("%.0f",$symbol)) < 0.001) {
2088: $symbol = sprintf("%.0f",$symbol);
2089: }
2090: if (length($symbol) > 1) {
2091: $symbol = show_star($symbol);
2092: }
2093: if (exists($resource_data->{'resource.'.$part.'.solved'}) &&
2094: $resource_data->{'resource.'.$part.'.solved'} ne '') {
2095: my $status = $resource_data->{'resource.'.$part.'.solved'};
2096: if ($status eq 'excused') {
2097: $symbol = 'x';
2098: $max -= $weight; # Do not count 'excused' problems.
2099: } elsif ($status eq 'ungraded_attempted') {
2100: $symbol = 'u';
2101: }
2102: $hasdata = 1;
2103: } elsif ($resource_data->{'resource.'.$part.'.award'} eq 'DRAFT') {
2104: $symbol = 'd';
2105: $hasdata = 1;
2106: } elsif (!exists($resource_data->{'resource.'.$part.'.awarded'})){
2107: # Unsolved. Did they try?
2108: if (exists($resource_data->{'resource.'.$part.'.tries'})){
2109: $symbol = '.';
2110: $hasdata = 1;
2111: } else {
2112: $symbol = ' ';
2113: }
2114: }
2115: #
2116: if (! defined($partscore)) {
2117: $partscore = $symbol;
2118: }
2119: push (@ScoreData,$partscore);
2120: #
2121: if ( ($links eq 'yes' && $symbol ne ' ') || ($links eq 'all')) {
2122: my $link = '/adm/grades' .
2123: '?symb='.&escape($resource->shown_symb).
2124: '&student='.$student->{'username'}.
2125: '&userdom='.$student->{'domain'}.
2126: '&command=submission';
2127: $symbol = &link($symbol, $link);
2128: }
2129: $Str .= $symbol;
2130: }
2131: }
2132: if (! $hasdata && $score == 0) {
2133: $score = ' ';
2134: }
2135: return ($Str,$performance_length,$score,$max,\@ScoreData);
2136: }
2137:
2138: #######################################################
2139: #######################################################
2140:
2141: =pod
2142:
2143: =item &CreateLegend()
2144:
2145: This function returns a formatted string containing the legend for the
2146: chart. The legend describes the symbols used to represent grades for
2147: problems.
2148:
2149: =cut
2150:
2151: #######################################################
2152: #######################################################
2153: sub CreateLegend {
2154: my $Str = "<p><pre>".
2155: " digit score or number of tries to get correct ".
2156: " * correct by student in more than 9 tries\n".
2157: " + correct by hand grading or override\n".
2158: " - incorrect by override\n".
2159: " . incorrect attempted\n".
2160: " u ungraded attempted\n".
2161: " d draft answer saved but not submitted\n".
2162: " not attempted (blank field)\n".
2163: " x excused".
2164: "</pre><p>";
2165: return $Str;
2166: }
2167:
2168: #######################################################
2169: #######################################################
2170:
2171: =pod
2172:
2173: =back
2174:
2175: =cut
2176:
2177: #######################################################
2178: #######################################################
2179:
2180: 1;
2181:
2182: __END__
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