1: # The LearningOnline Network with CAPA
2: #
3: # $Id: lonstudentassessment.pm,v 1.169.2.2 2012/12/16 17:11:23 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: $r->print(&Apache::lonhtmlcommon::breadcrumbs('Chart','Chart_Description:Chart_Sections:Chart_Student_Data:Chart_Enrollment_Status:Chart_Sequences:Chart_Output_Formats:Chart_Output_Data'));
170:
171: #
172: # Print out the HTML headers for the interface
173: # This also parses the output mode selector
174: # This step must *always* be done.
175: $r->print(&CreateInterface());
176: $r->print('<input type="hidden" name="notfirstrun" value="true" />');
177: $r->print('<input type="hidden" name="sort" value="'.
178: $env{'form.sort'}.'" />');
179: $r->rflush();
180: #
181: if (! exists($env{'form.notfirstrun'}) && ! $single_student_mode) {
182: return;
183: }
184: $r->print('<h4>'.
185: &Apache::lonstatistics::section_and_enrollment_description().
186: '</h4>');
187: #
188: my $initialize = \&html_initialize;
189: my $output_student = \&html_outputstudent;
190: my $finish = \&html_finish;
191: #
192: if ($output_mode eq 'excel') {
193: $initialize = \&excel_initialize;
194: $output_student = \&excel_outputstudent;
195: $finish = \&excel_finish;
196: } elsif ($output_mode eq 'csv') {
197: $initialize = \&csv_initialize;
198: $output_student = \&csv_outputstudent;
199: $finish = \&csv_finish;
200: }
201: #
202: if($c->aborted()) { return ; }
203: #
204: # Determine which students we want to look at
205: my @Students;
206: if ($single_student_mode) {
207: @Students = (&Apache::lonstatistics::current_student());
208: $r->print(&next_and_previous_buttons());
209: $r->rflush();
210: } else {
211: @Students = @Apache::lonstatistics::Students;
212: }
213: #
214: # Perform generic initialization tasks
215: # Since we use lonnet::EXT to retrieve problem weights,
216: # to ensure current data we must clear the caches out.
217: # This makes sure that parameter changes at the student level
218: # are immediately reflected in the chart.
219: &Apache::lonnet::clear_EXT_cache_status();
220: #
221: # Clean out loncoursedata's package data, just to be safe.
222: &Apache::loncoursedata::clear_internal_caches();
223: #
224: # Call the initialize routine selected above
225: $initialize->($r);
226: foreach my $student (@Students) {
227: if($c->aborted()) {
228: $finish->($r);
229: return ;
230: }
231: # Call the output_student routine selected above
232: $output_student->($r,$student);
233: }
234: # Call the "finish" routine selected above
235: &Apache::lonquickgrades::endGradeScreen($r);
236: $finish->($r);
237: #
238: return;
239: }
240:
241: #######################################################
242: #######################################################
243: sub next_and_previous_buttons {
244: my $Str = '';
245: $Str .= '<input type="hidden" name="SelectedStudent" value="'.
246: $env{'form.SelectedStudent'}.'" />';
247: #
248: # Build the previous student link
249: my $previous = &Apache::lonstatistics::previous_student();
250: my $previousbutton = '';
251: if (defined($previous)) {
252: my $sname = $previous->{'username'}.':'.$previous->{'domain'};
253: $previousbutton .= '<input type="button" value="'.
254: &mt('Previous Student ([_1])',
255: $previous->{'username'}.':'.$previous->{'domain'}).
256: '" onclick="document.Statistics.SelectedStudent.value='.
257: "'".$sname."'".';'.
258: 'document.Statistics.submit();" />';
259: } else {
260: $previousbutton .= '<input type="button" value="'.
261: &mt('Previous Student').'" disabled="disabled" />';
262: }
263: #
264: # Build the next student link
265: my $next = &Apache::lonstatistics::next_student();
266: my $nextbutton = '';
267: if (defined($next)) {
268: my $sname = $next->{'username'}.':'.$next->{'domain'};
269: $nextbutton .= '<input type="button" value="'.
270: &mt('Next Student ([_1])',
271: $next->{'username'}.':'.$next->{'domain'}).
272: '" onclick="document.Statistics.SelectedStudent.value='.
273: "'".$sname."'".';'.
274: 'document.Statistics.submit();" />';
275: } else {
276: $nextbutton .= '<input type="button" value="'.
277: &mt('Next Student').'" disabled="disabled" />';
278: }
279: #
280: # Build the 'all students' button
281: my $all = '';
282: $all .= '<input type="button" value="'.&mt('All Students').'" '.
283: '" onclick="document.Statistics.SelectedStudent.value='.
284: "''".';'.'document.Statistics.submit();" />';
285: $Str .= $previousbutton.(' 'x5).$all.(' 'x5).$nextbutton;
286: return $Str;
287: }
288:
289: #######################################################
290: #######################################################
291:
292: sub get_student_fields_to_show {
293: my @to_show = @Apache::lonstatistics::SelectedStudentData;
294: foreach (@to_show) {
295: if ($_ eq 'all') {
296: @to_show = @Apache::lonstatistics::StudentDataOrder;
297: last;
298: }
299: }
300: return @to_show;
301: }
302:
303: #######################################################
304: #######################################################
305:
306: =pod
307:
308: =item &CreateInterface()
309:
310: Called by &BuildStudentAssessmentPage to create the top part of the
311: page which displays the chart.
312:
313: Inputs: None
314:
315: Returns: A string containing the HTML for the headers and top table for
316: the chart page.
317:
318: =cut
319:
320: #######################################################
321: #######################################################
322: sub CreateInterface {
323: my $Str = '';
324: $Str .= '<table cellspacing="5">'."\n";
325: $Str .= '<tr>';
326: $Str .= '<td align="center"><b>'.&mt('Sections').'</b>'.
327: &Apache::loncommon::help_open_topic("Chart_Sections").
328: '</td>';
329: $Str .= '<td align="center"><b>'.&mt('Groups').'</b>'.
330: '</td>';
331: $Str .= '<td align="center"><b>'.&mt('Student Data').'</b>'.
332: &Apache::loncommon::help_open_topic("Chart_Student_Data").
333: '</td>';
334: $Str .= '<td align="center"><b>'.&mt('Access Status').'</b>'.
335: &Apache::loncommon::help_open_topic("Chart_Enrollment_Status").
336: '</td>';
337: $Str .= '<td align="center"><b>'.&mt('Sequences and Folders').'</b>'.
338: &Apache::loncommon::help_open_topic("Chart_Sequences").
339: '</td>';
340: $Str .= '<td align="center"><b>'.&mt('Output Format').'</b>'.
341: &Apache::loncommon::help_open_topic("Chart_Output_Formats").
342: '</td>';
343: $Str .= '<td align="center"><b>'.&mt('Output Data').'</b>'.
344: &Apache::loncommon::help_open_topic("Chart_Output_Data").
345: '</td>';
346: $Str .= '</tr>'."\n";
347: #
348: $Str .= '<tr><td align="center">'."\n";
349: $Str .= &Apache::lonstatistics::SectionSelect('Section','multiple',5);
350: $Str .= '</td><td align="center">';
351: $Str .= &Apache::lonstatistics::GroupSelect('Group','multiple',5);
352: $Str .= '</td><td align="center">';
353: $Str .= &Apache::lonstatistics::StudentDataSelect('StudentData','multiple',
354: 5,undef);
355: $Str .= '</td><td>'."\n";
356: $Str .= &Apache::lonhtmlcommon::StatusOptions(undef,undef,5);
357: $Str .= '</td><td>'."\n";
358: $Str .= &Apache::lonstatistics::map_select('Maps','multiple,all',5);
359: $Str .= '</td><td>'."\n";
360: $Str .= &CreateAndParseOutputSelector();
361: $Str .= '</td><td>'."\n";
362: $Str .= &CreateAndParseOutputDataSelector();
363: $Str .= '</td></tr>'."\n";
364: $Str .= '</table>'."\n";
365: $Str .= '<input type="submit" name="selectstudent" value="'.
366: &mt('Select One Student').'" />';
367: $Str .= ' 'x5;
368: $Str .= '<input type="submit" name="ClearCache" value="'.
369: &mt('Clear Caches').'" />';
370: $Str .= '<p>'
371: .'<input type="submit" name="Generate Chart"'
372: .' value="'.&mt('Generate Chart').'" />'
373: .'</p>';
374: return $Str;
375: }
376:
377: #######################################################
378: #######################################################
379:
380: =pod
381:
382: =item &CreateAndParseOutputSelector()
383:
384: =cut
385:
386: #######################################################
387: #######################################################
388: my @OutputOptions =
389: ({ name => 'HTML, with links',
390: value => 'html, with links',
391: description => 'Output HTML with each symbol linked to the problem '.
392: 'which generated it.',
393: mode => 'html',
394: show_links => 'yes',
395: },
396: { name => 'HTML, with all links',
397: value => 'html, with all links',
398: description => 'Output HTML with each symbol linked to the problem '.
399: 'which generated it. '.
400: 'This includes links for unattempted problems.',
401: mode => 'html',
402: show_links => 'all',
403: },
404: { name => 'HTML, without links',
405: value => 'html, without links',
406: description => 'Output HTML. By not including links, the size of the'.
407: ' web page is greatly reduced. If your browser crashes on the '.
408: 'full display, try this.',
409: mode => 'html',
410: show_links => 'no',
411: },
412: { name => 'Excel',
413: value => 'excel',
414: description => 'Output an Excel file (compatable with Excel 95).',
415: mode => 'excel',
416: show_links => 'no',
417: },
418: { name => 'CSV',
419: value => 'csv',
420: description => 'Output a comma separated values file suitable for '.
421: 'import into a spreadsheet program. Using this method as opposed '.
422: 'to Excel output allows you to organize your data before importing'.
423: ' it into a spreadsheet program.',
424: mode => 'csv',
425: show_links => 'no',
426: },
427: );
428:
429: sub OutputDescriptions {
430: my $Str = '';
431: $Str .= "<h2>Output Formats</h2>\n";
432: $Str .= "<dl>\n";
433: foreach my $outputmode (@OutputOptions) {
434: $Str .=" <dt>".$outputmode->{'name'}."</dt>\n";
435: $Str .=" <dd>".$outputmode->{'description'}."</dd>\n";
436: }
437: $Str .= "</dl>\n";
438: return $Str;
439: }
440:
441: sub CreateAndParseOutputSelector {
442: my $Str = '';
443: my $elementname = 'chartoutputmode';
444: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
445: [$elementname]);
446: #
447: # Format for output options is 'mode, restrictions';
448: my $selected = (&Apache::loncommon::get_env_multiple('form.'.$elementname))[0];
449: $selected = 'html, without links' if (!$selected);
450:
451: #
452: # Set package variables describing output mode
453: $show_links = 'no';
454: $output_mode = 'html';
455: foreach my $option (@OutputOptions) {
456: next if ($option->{'value'} ne $selected);
457: $output_mode = $option->{'mode'};
458: $show_links = $option->{'show_links'};
459: }
460:
461: #
462: # Build the form element
463: $Str = qq/<select size="5" name="$elementname">/;
464: foreach my $option (@OutputOptions) {
465: $Str .= "\n".' <option value="'.$option->{'value'}.'"';
466: $Str .= " selected " if ($option->{'value'} eq $selected);
467: $Str .= ">".&mt($option->{'name'})."<\/option>";
468: }
469: $Str .= "\n</select>";
470: return $Str;
471: }
472:
473: ##
474: ## Data selector stuff
475: ##
476: my @OutputDataOptions =
477: (
478: { name => 'Scores Summary',
479: base => 'scores',
480: value => 'sum and total',
481: scores => 1,
482: tries => 0,
483: every_problem => 0,
484: sequence_sum => 1,
485: sequence_max => 1,
486: grand_total => 1,
487: grand_maximum => 1,
488: summary_table => 1,
489: maximum_row => 1,
490: ignore_weight => 0,
491: shortdesc => 'Total Score and Maximum Possible for each '.
492: 'Sequence or Folder',
493: longdesc => 'The score of each student as well as the '.
494: ' maximum possible on each Sequence or Folder.',
495: },
496: { name => 'Scores Per Problem',
497: base => 'scores',
498: value => 'scores',
499: scores => 1,
500: tries => 0,
501: correct => 0,
502: every_problem => 1,
503: sequence_sum => 1,
504: sequence_max => 1,
505: grand_total => 1,
506: grand_maximum => 1,
507: summary_table => 1,
508: maximum_row => 1,
509: ignore_weight => 0,
510: shortdesc => 'Score on each Problem Part',
511: longdesc =>'The students score on each problem part, computed as'.
512: 'the part weight * part awarded',
513: },
514: { name =>'Tries',
515: base =>'tries',
516: value => 'tries',
517: scores => 0,
518: tries => 1,
519: correct => 0,
520: every_problem => 1,
521: sequence_sum => 0,
522: sequence_max => 0,
523: grand_total => 0,
524: grand_maximum => 0,
525: summary_table => 0,
526: maximum_row => 0,
527: ignore_weight => 0,
528: shortdesc => 'Number of Tries before success on each Problem Part',
529: longdesc =>'The number of tries before success on each problem part.',
530: non_html_notes => 'negative values indicate an incorrect problem',
531: },
532: { name =>'Parts Correct',
533: base =>'tries',
534: value => 'parts correct total',
535: scores => 0,
536: tries => 0,
537: correct => 1,
538: every_problem => 1,
539: sequence_sum => 1,
540: sequence_max => 1,
541: grand_total => 1,
542: grand_maximum => 1,
543: summary_table => 1,
544: maximum_row => 0,
545: ignore_weight => 1,
546: shortdesc => 'Number of Problem Parts completed successfully',
547: longdesc => 'The Number of Problem Parts completed successfully and '.
548: 'the maximum possible for each student',
549: },
550: );
551:
552: sub HTMLifyOutputDataDescriptions {
553: my $Str = '';
554: $Str .= '<h2>'.&mt('Output Data').'</h2>'."\n";
555: $Str .= "<dl>\n";
556: foreach my $option (@OutputDataOptions) {
557: $Str .= ' <dt>'.$option->{'name'}.'</dt>';
558: $Str .= '<dd>'.$option->{'longdesc'}.'</dd>'."\n";
559: }
560: $Str .= "</dl>\n";
561: return $Str;
562: }
563:
564: sub CreateAndParseOutputDataSelector {
565: my $Str = '';
566: my $elementname = 'chartoutputdata';
567: #
568: my $selected = (&Apache::loncommon::get_env_multiple('form.'.$elementname))[0];
569: $selected = 'scores' if (!$selected);
570:
571: #
572: $chosen_output = $OutputDataOptions[0];
573: foreach my $option (@OutputDataOptions) {
574: if ($option->{'value'} eq $selected) {
575: $chosen_output = $option;
576: }
577: }
578: #
579: # Build the form element
580: $Str = qq/<select size="5" name="$elementname">/;
581: foreach my $option (@OutputDataOptions) {
582: $Str .= "\n".' <option value="'.$option->{'value'}.'"';
583: $Str .= " selected " if ($option->{'value'} eq $chosen_output->{'value'});
584: $Str .= ">".&mt($option->{'name'})."<\/option>";
585: }
586: $Str .= "\n</select>";
587: return $Str;
588:
589: }
590:
591: #######################################################
592: #######################################################
593: sub count_parts {
594: my ($navmap,$sequence) = @_;
595: my @resources = &get_resources($navmap,$sequence);
596: my $count = 0;
597: foreach my $res (@resources) {
598: $count += scalar(@{$res->parts});
599: }
600: return $count;
601: }
602:
603: sub get_resources {
604: my ($navmap,$sequence) = @_;
605: my @resources = $navmap->retrieveResources($sequence,
606: sub { shift->is_problem(); },
607: 0,0,0);
608: return @resources;
609: }
610:
611: #######################################################
612: #######################################################
613:
614: =pod
615:
616: =head2 HTML output routines
617:
618: =item &html_initialize($r)
619:
620: Create labels for the columns of student data to show.
621:
622: =item &html_outputstudent($r,$student)
623:
624: Return a line of the chart for a student.
625:
626: =item &html_finish($r)
627:
628: =cut
629:
630: #######################################################
631: #######################################################
632: {
633: my $padding;
634: my $count;
635:
636: my $nodata_count; # The number of students for which there is no data
637: my %prog_state; # progress state used by loncommon PrgWin routines
638: my $total_sum_width;
639:
640: my %width; # Holds sequence width information
641: my @sequences;
642: my $navmap; # Have to keep this around since weakref is a bit zealous
643:
644: sub html_cleanup {
645: undef(%prog_state);
646: undef(%width);
647: #
648: undef($navmap);
649: undef(@sequences);
650: }
651:
652: sub html_initialize {
653: my ($r) = @_;
654: #
655: $padding = ' 'x3;
656: $count = 0;
657: $nodata_count = 0;
658: &html_cleanup();
659: ($navmap,@sequences) =
660: &Apache::lonstatistics::selected_sequences_with_assessments();
661: if (! ref($navmap)) {
662: # Unable to get data, so bail out
663: $r->print('<p class="LC_error">'
664: .&mt('Unable to retrieve course information.')
665: .'</p>');
666: }
667:
668: # If we're showing links, show a checkbox to open in new
669: # windows.
670: if ($show_links ne 'no') {
671: my $labeltext = &mt('Show links in new window');
672: $r->print(<<NEW_WINDOW_CHECKBOX);
673: <script type="text/javascript">new_window = true;</script>
674: <p><label>
675: <input type="checkbox" checked="checked" onclick="new_window=this.checked" />
676: $labeltext
677: </label></p>
678: NEW_WINDOW_CHECKBOX
679: }
680:
681: #
682: $r->print("<h3>".$env{'course.'.$env{'request.course.id'}.'.description'}.
683: " ".&Apache::lonlocal::locallocaltime(time)."</h3>");
684: #
685: if ($chosen_output->{'base'} !~ /^final table/) {
686: $r->print("<h3>".&mt($chosen_output->{'shortdesc'})."</h3>");
687: }
688: my $Str = "<pre>\n";
689: # First, the @StudentData fields need to be listed
690: my @to_show = &get_student_fields_to_show();
691: foreach my $field (@to_show) {
692: my $title=$Apache::lonstatistics::StudentData{$field}->{'title'};
693: my $base =$Apache::lonstatistics::StudentData{$field}->{'base_width'};
694: my $width=$Apache::lonstatistics::StudentData{$field}->{'width'};
695: $Str .= $title.' 'x($width-$base).$padding;
696: }
697: #
698: # Compute the column widths and output the sequence titles
699: my $total_count;
700: #
701: # Compute sequence widths
702: my $starttime = Time::HiRes::time;
703: foreach my $seq (@sequences) {
704: my $symb = $seq->symb;
705: my $title = $seq->compTitle;
706: $width{$symb}->{'width_sum'} = 0;
707: # Compute width of sum
708: if ($chosen_output->{'sequence_sum'}) {
709: if ($chosen_output->{'every_problem'}) {
710: # Use 1 digit for a space
711: $width{$symb}->{'width_sum'} += 1;
712: }
713: $total_count += &count_parts($navmap,$seq);
714: # Use 6 digits for the sum
715: $width{$symb}->{'width_sum'} += 6;
716: }
717: # Compute width of maximum
718: if ($chosen_output->{'sequence_max'}) {
719: if ($width{$symb}->{'width_sum'}>0) {
720: # One digit for the '/'
721: $width{$symb}->{'width_sum'} +=1;
722: }
723: # Use 6 digits for the total
724: $width{$symb}->{'width_sum'}+=6;
725: }
726: #
727: if ($chosen_output->{'every_problem'}) {
728: # one problem per digit
729: $width{$symb}->{'width_parts'}= &count_parts($navmap,$seq);
730: $width{$symb}->{'width_problem'} += $width{$symb}->{'width_parts'};
731: } else {
732: $width{$symb}->{'width_problem'} = 0;
733: }
734: $width{$symb}->{'width_total'} = $width{$symb}->{'width_problem'} +
735: $width{$symb}->{'width_sum'};
736: if ($width{$symb}->{'width_total'} < length(&HTML::Entities::decode($title))) {
737: $width{$symb}->{'width_total'} = length(&HTML::Entities::decode($title));
738: }
739: #
740: # Output the sequence titles
741: $Str .= $title.(' 'x($width{$symb}->{'width_total'}-
742: length($title)
743: )).$padding;
744: }
745: $total_sum_width = length($total_count)+1;
746: $Str .= " total</pre>\n";
747: $Str .= "<pre>";
748:
749: $r->print(<<JS);
750: <script type="text/javascript">
751: // get the left offset of a given widget as an absolute position
752: function getLeftOffset (element) {
753: return collect(element, "offsetLeft");
754: }
755:
756: // get the top offset of a given widget as an absolute position
757: function getTopOffset (element) {
758: return collect(element, "offsetTop");
759: }
760:
761: function collect(element, att) {
762: var val = 0;
763: while(element) {
764: val += element[att];
765: element = element.offsetParent;
766: }
767: return val;
768: }
769:
770: var currentDiv;
771: var currentElement;
772: function popup_score(element, score) {
773: popdown_score();
774: var left = getLeftOffset(element);
775: var top = getTopOffset(element);
776: var div = document.createElement("div");
777: div.className = "LC_chrt_popup";
778: div.appendChild(document.createTextNode(score));
779: div.style.position = "absolute";
780: div.style.top = (top - 25) + "px";
781: div.style.left = (left - 10) + "px";
782: currentDiv = div;
783: document.body.insertBefore(div, document.body.childNodes[0]);
784: element.className = "LC_chrt_popup_up";
785: currentElement = element;
786: }
787:
788: function popdown_score() {
789: if (currentDiv) {
790: document.body.removeChild(currentDiv);
791: }
792: if (currentElement) {
793: currentElement.className = 'LC_chrt_popup_exists';
794: }
795: currentDiv = undefined;
796: }
797: </script>
798: JS
799:
800: #
801: # Let the user know what we are doing
802: my $studentcount = scalar(@Apache::lonstatistics::Students);
803: if ($env{'form.SelectedStudent'}) {
804: $studentcount = '1';
805: }
806: #
807: # Initialize progress window
808: #
809: %prog_state=&Apache::lonhtmlcommon::Create_PrgWin($r,$studentcount);
810: &Apache::lonhtmlcommon::Update_PrgWin($r,\%prog_state,
811: 'Processing first student');
812: $r->print($Str);
813: $r->rflush();
814:
815: return;
816: }
817:
818: sub html_outputstudent {
819: my ($r,$student) = @_;
820: my $Str = '';
821: return if (! defined($navmap));
822: #
823: if($count++ % 5 == 0 && $count > 0) {
824: # $r->print("</pre><pre>");
825: $r->print('</pre>');
826: &Apache::lonhtmlcommon::Increment_PrgWin(
827: $r,\%prog_state,'last five students',5);
828: $r->rflush();
829: $r->print('<pre>');
830: }
831: # First, the @StudentData fields need to be listed
832: my @to_show = &get_student_fields_to_show();
833: foreach my $field (@to_show) {
834: my $title=$student->{$field};
835: # Deal with 'comments' - how I love special cases
836: if ($field eq 'comments') {
837: $title = '<a href="/adm/'.$student->{'domain'}.'/'.$student->{'username'}.'/'.'aboutme#coursecomment">'.&mt('Comments').'</a>';
838: }
839: utf8::decode($title);
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 $randompick = $seq->randompick();
874: my ($performance,$performance_length,$score,$seq_max,$rawdata);
875: if ($chosen_output->{'tries'}) {
876: ($performance,$performance_length,$score,$seq_max,$rawdata) =
877: &student_tries_on_sequence($student,\%StudentsData,
878: $navmap,$seq,$show_links,$randompick);
879: } else {
880: ($performance,$performance_length,$score,$seq_max,$rawdata) =
881: &student_performance_on_sequence($student,\%StudentsData,
882: $navmap,$seq,$show_links,
883: $chosen_output->{ignore_weight},
884: $randompick);
885: }
886: my $ratio='';
887: if ($chosen_output->{'every_problem'} &&
888: $chosen_output->{'sequence_sum'}) {
889: $ratio .= ' ';
890: }
891: if ($chosen_output->{'sequence_sum'} && $score ne ' ') {
892: my $score .= sprintf("%3.2f",$score);
893: $ratio .= (' 'x(6-length($score))).$score;
894: } elsif($chosen_output->{'sequence_sum'}) {
895: $ratio .= ' 'x6;
896: }
897: if ($chosen_output->{'sequence_max'}) {
898: if ($chosen_output->{'sequence_sum'}) {
899: $ratio .= '/';
900: }
901: my $sequence_total=sprintf("%3.2f",$seq_max);
902: $ratio .= $sequence_total.(' 'x(6-length($sequence_total)));
903: }
904: #
905: if (! $chosen_output->{'every_problem'}) {
906: $performance = '';
907: $performance_length=0;
908: }
909: $performance .= ' 'x($width{$symb}->{'width_total'} -
910: $performance_length -
911: $width{$symb}->{'width_sum'}).
912: $ratio;
913: #
914: $Str .= $performance.$padding;
915: #
916: $studentstats->{$symb}->{'score'}= $score;
917: $studentstats->{$symb}->{'max'} = $seq_max;
918: }
919: #
920: # Total it up and store the statistics info.
921: my ($score,$max);
922: while (my ($symb,$seq_stats) = each (%{$studentstats})) {
923: $Statistics->{$symb}->{'score'} += $seq_stats->{'score'};
924: if ($Statistics->{$symb}->{'max'} < $seq_stats->{'max'}) {
925: $Statistics->{$symb}->{'max'} = $seq_stats->{'max'};
926: }
927: if ($seq_stats->{'score'} ne ' ') {
928: $score += $seq_stats->{'score'};
929: $Statistics->{$symb}->{'num_students'}++;
930: }
931: $max += $seq_stats->{'max'};
932: }
933: if (! defined($score)) {
934: $score = ' ' x $total_sum_width;
935: } else {
936: $score = sprintf("%.2f",$score);
937: $score = (' 'x(6-length($score))).$score;
938: }
939: $Str .= ' '.' 'x($total_sum_width-length($score)).$score.' / '.$max;
940: $Str .= " \n";
941: #
942: $r->print($Str);
943: #
944: # $r->rflush();
945: # &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,'last student');
946: return;
947: }
948:
949: sub html_finish {
950: my ($r) = @_;
951: return if (! defined($navmap));
952: #
953: # Check for suppressed output and close the progress window if so
954: $r->print("</pre>\n");
955: if ($chosen_output->{'summary_table'}) {
956: if ($single_student_mode) {
957: $r->print(&SingleStudentTotal());
958: } else {
959: $r->print(&StudentAverageTotal());
960: }
961: }
962: $r->rflush();
963: &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
964: &html_cleanup();
965: return;
966: }
967:
968: sub StudentAverageTotal {
969: my $Str = '<h3>'.&mt('Summary Tables').'</h3>'.$/;
970: $Str .= &Apache::loncommon::start_data_table();
971: $Str .= &Apache::loncommon::start_data_table_header_row().
972: '<th>'.&mt('Title').'</th>'.
973: '<th>'.&mt('Average').'</th>'.
974: '<th>'.&mt('Maximum').'</th>'.
975: &Apache::loncommon::end_data_table_header_row().$/;
976: foreach my $seq (@sequences) {
977: my $symb = $seq->symb;
978: my $ave;
979: my $num_students = $Statistics->{$symb}->{'num_students'};
980: if ($num_students > 0) {
981: $ave = int(100*
982: ($Statistics->{$symb}->{'score'}/$num_students)
983: )/100;
984: } else {
985: $ave = 0;
986: }
987: my $max = $Statistics->{$symb}->{'max'};
988: $ave = sprintf("%.2f",$ave);
989: $Str .= &Apache::loncommon::start_data_table_row().
990: '<td>'.$seq->compTitle.'</td>'.
991: '<td align="right">'.$ave.' </td>'.
992: '<td align="right">'.$max.' '.'</td>'.
993: &Apache::loncommon::end_data_table_row()."\n";
994: }
995: $Str .= &Apache::loncommon::end_data_table()."\n";
996: return $Str;
997: }
998:
999: sub SingleStudentTotal {
1000: return if (! defined($navmap));
1001: my $student = &Apache::lonstatistics::current_student();
1002: my $Str = '<h3>'.&mt('Summary table for [_1] ([_2])',
1003: $student->{'fullname'},
1004: $student->{'username'}.':'.$student->{'domain'}).'</h3>';
1005: $Str .= $/;
1006: $Str .= &Apache::loncommon::start_data_table()."\n";
1007: $Str .=
1008: &Apache::loncommon::start_data_table_header_row().
1009: '<th>'.&mt('Sequence or Folder').'</th>';
1010: if ($chosen_output->{'base'} eq 'tries') {
1011: $Str .= '<th>'.&mt('Parts Correct').'</th>';
1012: } else {
1013: $Str .= '<th>'.&mt('Score').'</th>';
1014: }
1015: $Str .= '<th>'.&mt('Maximum').'</th>'.
1016: &Apache::loncommon::end_data_table_header_row()."\n";
1017: my $total = 0;
1018: my $total_max = 0;
1019: foreach my $seq (@sequences) {
1020: my $value = $Statistics->{$seq->symb}->{'score'};
1021: my $max = $Statistics->{$seq->symb}->{'max'};
1022: $Str .= &Apache::loncommon::start_data_table_row().
1023: '<td>'.&HTML::Entities::encode($seq->compTitle).'</td>'.
1024: '<td align="right">'.$value.'</td>'.
1025: '<td align="right">'.$max.'</td>'.
1026: &Apache::loncommon::end_data_table_row()."\n";
1027: $total += $value;
1028: $total_max +=$max;
1029: }
1030: $Str .= &Apache::loncommon::start_data_table_row().
1031: '<td><b>'.&mt('Total').'</b></td>'.
1032: '<td align="right">'.$total.'</td>'.
1033: '<td align="right">'.$total_max.'</td>'.
1034: &Apache::loncommon::end_data_table_row()."\n";
1035: $Str .= &Apache::loncommon::end_data_table()."\n";
1036: return $Str;
1037: }
1038:
1039: }
1040:
1041: #######################################################
1042: #######################################################
1043:
1044: =pod
1045:
1046: =head2 EXCEL subroutines
1047:
1048: =item &excel_initialize($r)
1049:
1050: =item &excel_outputstudent($r,$student)
1051:
1052: =item &excel_finish($r)
1053:
1054: =cut
1055:
1056: #######################################################
1057: #######################################################
1058: {
1059:
1060: my $excel_sheet;
1061: my $excel_workbook;
1062: my $format;
1063:
1064: my $filename;
1065: my $rows_output;
1066: my $cols_output;
1067:
1068: my %prog_state; # progress window state
1069: my $request_aborted;
1070:
1071: my $total_formula;
1072: my $maximum_formula;
1073: my %formula_data;
1074:
1075: my $navmap;
1076: my @sequences;
1077:
1078: sub excel_cleanup {
1079: #
1080: undef ($excel_sheet);
1081: undef ($excel_workbook);
1082: undef ($filename);
1083: undef ($rows_output);
1084: undef ($cols_output);
1085: undef (%prog_state);
1086: undef ($request_aborted);
1087: undef ($total_formula);
1088: undef ($maximum_formula);
1089: #
1090: undef(%formula_data);
1091: #
1092: undef($navmap);
1093: undef(@sequences);
1094: }
1095:
1096: sub excel_initialize {
1097: my ($r) = @_;
1098:
1099: &excel_cleanup();
1100: ($navmap,@sequences) =
1101: &Apache::lonstatistics::selected_sequences_with_assessments();
1102: if (! ref($navmap)) {
1103: # Unable to get data, so bail out
1104: $r->print("<h3>".
1105: &mt('Unable to retrieve course information.').
1106: '</h3>');
1107: }
1108: #
1109: my $total_columns = scalar(&get_student_fields_to_show());
1110: my $num_students = scalar(@Apache::lonstatistics::Students);
1111: #
1112: foreach my $seq (@sequences) {
1113: if ($chosen_output->{'every_problem'}) {
1114: $total_columns+=&count_parts($navmap,$seq);
1115: }
1116: # Add 2 because we need a 'sequence_sum' and 'total' column for each
1117: $total_columns += 2;
1118: }
1119: my $too_many_cols_error_message =
1120: '<h2>'.&mt('Unable to Complete Request').'</h2>'.$/.
1121: '<p class="LC_warning">'.&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>'.$/.
1122: '<p>'.&mt('You may consider reducing the number of <b>Sequences or Folders</b> you have selected.').'</p>'.$/.
1123: '<p>'.&mt('LON-CAPA can produce <b>CSV</b> files of this data or Excel files of the <b>Scores Summary</b> data.').'</p>'.$/;
1124: if ($chosen_output->{'base'} eq 'tries' && $total_columns > 255) {
1125: $r->print($too_many_cols_error_message);
1126: $request_aborted = 1;
1127: }
1128: if ($chosen_output->{'base'} eq 'scores' && $total_columns > 255) {
1129: $r->print($too_many_cols_error_message);
1130: $request_aborted = 1;
1131: }
1132: return if ($request_aborted);
1133: #
1134: #
1135: $excel_workbook = undef;
1136: $excel_sheet = undef;
1137: #
1138: $rows_output = 0;
1139: $cols_output = 0;
1140: #
1141: # Determine rows
1142: my $header_row = $rows_output++;
1143: my $description_row = $rows_output++;
1144: my $notes_row = $rows_output++;
1145: $rows_output++; # blank row
1146: my $summary_header_row;
1147: if ($chosen_output->{'summary_table'}) {
1148: $summary_header_row = $rows_output++;
1149: $rows_output+= scalar(@sequences);
1150: $rows_output++;
1151: }
1152: my $sequence_name_row = $rows_output++;
1153: my $resource_name_row = $rows_output++;
1154: my $maximum_data_row = $rows_output++;
1155: if (! $chosen_output->{'maximum_row'}) {
1156: $rows_output--;
1157: }
1158: my $first_data_row = $rows_output++;
1159: #
1160: # Create sheet
1161: ($excel_workbook,$filename,$format)=
1162: &Apache::loncommon::create_workbook($r);
1163: return if (! defined($excel_workbook));
1164: #
1165: # Add a worksheet
1166: my $sheetname = $env{'course.'.$env{'request.course.id'}.'.description'};
1167: $sheetname = &Apache::loncommon::clean_excel_name($sheetname);
1168: $excel_sheet = $excel_workbook->addworksheet($sheetname);
1169: #
1170: # Put the course description in the header
1171: $excel_sheet->write($header_row,$cols_output++,
1172: $env{'course.'.$env{'request.course.id'}.'.description'},
1173: $format->{'h1'});
1174: $cols_output += 3;
1175: #
1176: # Put a description of the sections listed
1177: my $sectionstring = '';
1178: my @Sections = &Apache::lonstatistics::get_selected_sections();
1179: $excel_sheet->write($header_row,$cols_output++,
1180: &Apache::lonstatistics::section_and_enrollment_description('localized'),
1181: $format->{'h3'});
1182: #
1183: # Put the date in there too
1184: $excel_sheet->write($header_row,$cols_output++,
1185: &mt('Compiled on [_1]',&Apache::lonlocal::locallocaltime(time)),$format->{'h3'});
1186: #
1187: $cols_output = 0;
1188: $excel_sheet->write($description_row,$cols_output++,
1189: &mt($chosen_output->{'shortdesc'}),
1190: $format->{'b'});
1191: #
1192: $cols_output = 0;
1193: $excel_sheet->write($notes_row,$cols_output++,
1194: $chosen_output->{'non_html_notes'},
1195: $format->{'i'});
1196:
1197: ##############################################
1198: # Output headings for the raw data
1199: ##############################################
1200: #
1201: # Add the student headers
1202: $cols_output = 0;
1203: foreach my $field (&get_student_fields_to_show()) {
1204: $excel_sheet->write($resource_name_row,$cols_output++,&mt($field),
1205: $format->{'bold'});
1206: }
1207: #
1208: # Add the remaining column headers
1209: my $total_formula_string = '=0';
1210: my $maximum_formula_string = '=0';
1211: foreach my $seq (@sequences) {
1212: my $symb = $seq->symb;
1213: $excel_sheet->write($sequence_name_row,,
1214: $cols_output,$seq->compTitle,$format->{'bold'});
1215: # Determine starting cell
1216: $formula_data{$symb}->{'Excel:startcell'}=
1217: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1218: ($first_data_row,$cols_output);
1219: $formula_data{$symb}->{'Excel:startcol'}=$cols_output;
1220: my $count = 0;
1221: if ($chosen_output->{'every_problem'}) {
1222: # Put the names of the problems and parts into the sheet
1223: foreach my $res (&get_resources($navmap,$seq)) {
1224: if (scalar(@{$res->parts}) > 1) {
1225: foreach my $part (@{$res->parts}) {
1226: $excel_sheet->write($resource_name_row,
1227: $cols_output++,
1228: $res->compTitle.' part '.$res->part_display($part),
1229: $format->{'bold'});
1230: $count++;
1231: }
1232: } else {
1233: $excel_sheet->write($resource_name_row,
1234: $cols_output++,
1235: $res->compTitle,$format->{'bold'});
1236: $count++;
1237: }
1238: }
1239: }
1240: # Determine ending cell
1241: if ($count <= 1) {
1242: $formula_data{$symb}->{'Excel:endcell'} = $formula_data{$symb}->{'Excel:startcell'};
1243: $formula_data{$symb}->{'Excel:endcol'} = $formula_data{$symb}->{'Excel:startcol'};
1244: } else {
1245: $formula_data{$symb}->{'Excel:endcell'} =
1246: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1247: ($first_data_row,$cols_output-1);
1248: $formula_data{$symb}->{'Excel:endcol'} = $cols_output-1;
1249: }
1250: # Create the formula for summing up this sequence
1251: if (! exists($formula_data{$symb}->{'Excel:endcell'}) ||
1252: ! defined($formula_data{$symb}->{'Excel:endcell'})) {
1253: $formula_data{$symb}->{'Excel:endcell'} = $formula_data{$symb}->{'Excel:startcell'};
1254: }
1255:
1256: my $start = $formula_data{$symb}->{'Excel:startcell'};
1257: my $end = $formula_data{$symb}->{'Excel:endcell'};
1258: $formula_data{$symb}->{'Excel:sum'}= $excel_sheet->store_formula
1259: ("=IF(COUNT($start\:$end),SUM($start\:$end),\"\")");
1260: # Determine cell the score is held in
1261: $formula_data{$symb}->{'Excel:scorecell'} =
1262: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1263: ($first_data_row,$cols_output);
1264: $formula_data{$symb}->{'Excel:scorecol'}=$cols_output;
1265: if ($chosen_output->{'base'} eq 'parts correct total') {
1266: $excel_sheet->write($resource_name_row,$cols_output++,
1267: &mt('parts correct'),
1268: $format->{'bold'});
1269: } elsif ($chosen_output->{'sequence_sum'}) {
1270: if ($chosen_output->{'correct'}) {
1271: # Only reporting the number correct, so do not call it score
1272: $excel_sheet->write($resource_name_row,$cols_output++,
1273: &mt('sum'),
1274: $format->{'bold'});
1275: } else {
1276: $excel_sheet->write($resource_name_row,$cols_output++,
1277: &mt('score'),
1278: $format->{'bold'});
1279: }
1280: }
1281: #
1282: $total_formula_string.='+'.
1283: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1284: ($first_data_row,$cols_output-1);
1285: if ($chosen_output->{'sequence_max'}) {
1286: $excel_sheet->write($resource_name_row,$cols_output,
1287: &mt('maximum'),
1288: $format->{'bold'});
1289: $formula_data{$symb}->{'Excel:maxcell'} =
1290: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1291: ($first_data_row,$cols_output);
1292: $formula_data{$symb}->{'Excel:maxcol'}=$cols_output;
1293: $maximum_formula_string.='+'.
1294: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1295: ($first_data_row,$cols_output);
1296: $cols_output++;
1297:
1298: }
1299: }
1300: if ($chosen_output->{'grand_total'}) {
1301: $excel_sheet->write($resource_name_row,$cols_output++,&mt('Total'),
1302: $format->{'bold'});
1303: }
1304: if ($chosen_output->{'grand_maximum'}) {
1305: $excel_sheet->write($resource_name_row,$cols_output++,&mt('Max. Total'),
1306: $format->{'bold'});
1307: }
1308: $total_formula = $excel_sheet->store_formula($total_formula_string);
1309: $maximum_formula = $excel_sheet->store_formula($maximum_formula_string);
1310: ##############################################
1311: # Output a row for MAX, if appropriate
1312: ##############################################
1313: if ($chosen_output->{'maximum_row'}) {
1314: $cols_output = 0;
1315: foreach my $field (&get_student_fields_to_show()) {
1316: if ($field eq 'username' || $field eq 'fullname' ||
1317: $field eq 'id') {
1318: $excel_sheet->write($maximum_data_row,$cols_output++,'Maximum',
1319: $format->{'bold'});
1320: } else {
1321: $excel_sheet->write($maximum_data_row,$cols_output++,'');
1322: }
1323: }
1324: #
1325: # Add the maximums for each sequence or assessment
1326: my %total_cell_translation;
1327: my %maximum_cell_translation;
1328: foreach my $seq (@sequences) {
1329: my $symb = $seq->symb;
1330: $cols_output=$formula_data{$symb}->{'Excel:startcol'};
1331: $total_cell_translation{$formula_data{$symb}->{'Excel:scorecell'}}=
1332: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1333: ($maximum_data_row,$formula_data{$symb}->{'Excel:scorecol'});
1334: $maximum_cell_translation{$formula_data{$symb}->{'Excel:maxcell'}}=
1335: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1336: ($maximum_data_row,$formula_data{$symb}->{'Excel:maxcol'});
1337: my $weight;
1338: my $max = 0;
1339: foreach my $resource (&get_resources($navmap,$seq)) {
1340: foreach my $part (@{$resource->parts}){
1341: $weight = 1;
1342: if ($chosen_output->{'scores'}) {
1343: $weight = &Apache::lonnet::EXT
1344: ('resource.'.$part.'.weight',$resource->symb,
1345: undef,undef,undef);
1346: if (!defined($weight) || ($weight eq '')) {
1347: $weight=1;
1348: }
1349: }
1350: if ($chosen_output->{'scores'} &&
1351: $chosen_output->{'every_problem'}) {
1352: $excel_sheet->write($maximum_data_row,$cols_output++,
1353: $weight);
1354: }
1355: $max += $weight;
1356: }
1357: }
1358: #
1359: if ($chosen_output->{'sequence_sum'} &&
1360: $chosen_output->{'every_problem'}) {
1361: my %replaceCells=
1362: ('^'.$formula_data{$symb}->{'Excel:startcell'}.':'.
1363: $formula_data{$symb}->{'Excel:endcell'}.'$' =>
1364: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell($maximum_data_row,$formula_data{$symb}->{'Excel:startcol'}).':'.
1365: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell($maximum_data_row,$formula_data{$symb}->{'Excel:endcol'}));
1366: $excel_sheet->repeat_formula($maximum_data_row,$cols_output++,
1367: $formula_data{$symb}->{'Excel:sum'},undef,
1368: %replaceCells, %replaceCells);
1369:
1370: } elsif ($chosen_output->{'sequence_sum'}) {
1371: $excel_sheet->write($maximum_data_row,$cols_output++,$max);
1372: }
1373: if ($chosen_output->{'sequence_max'}) {
1374: $excel_sheet->write($maximum_data_row,$cols_output++,$max);
1375: }
1376: #
1377: }
1378: if ($chosen_output->{'grand_total'}) {
1379: $excel_sheet->repeat_formula($maximum_data_row,$cols_output++,
1380: $total_formula,undef,
1381: %total_cell_translation);
1382: }
1383: if ($chosen_output->{'grand_maximum'}) {
1384: $excel_sheet->repeat_formula($maximum_data_row,$cols_output++,
1385: $maximum_formula,undef,
1386: %maximum_cell_translation);
1387: }
1388: } # End of MAXIMUM row output if ($chosen_output->{'maximum_row'}) {
1389: $rows_output = $first_data_row;
1390: ##############################################
1391: # Output summary table, which actually is above the sequence name row.
1392: ##############################################
1393: if ($chosen_output->{'summary_table'}) {
1394: $cols_output = 0;
1395: $excel_sheet->write($summary_header_row,$cols_output++,
1396: &mt('Summary Table'),$format->{'bold'});
1397: if ($chosen_output->{'maximum_row'}) {
1398: $excel_sheet->write($summary_header_row,$cols_output++,
1399: &mt('Maximum'),$format->{'bold'});
1400: }
1401: $excel_sheet->write($summary_header_row,$cols_output++,
1402: &mt('Average'),$format->{'bold'});
1403: $excel_sheet->write($summary_header_row,$cols_output++,
1404: &mt('Median'),$format->{'bold'});
1405: $excel_sheet->write($summary_header_row,$cols_output++,
1406: &mt('Std Dev'),$format->{'bold'});
1407: my $row = $summary_header_row+1;
1408: foreach my $seq (@sequences) {
1409: my $symb = $seq->symb;
1410: $cols_output = 0;
1411: $excel_sheet->write($row,$cols_output++,
1412: $seq->compTitle,
1413: $format->{'bold'});
1414: if ($chosen_output->{'maximum_row'}) {
1415: $excel_sheet->write
1416: ($row,$cols_output++,
1417: '='.
1418: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1419: ($maximum_data_row,$formula_data{$symb}->{'Excel:scorecol'})
1420: );
1421: }
1422: my $range =
1423: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1424: ($first_data_row,$formula_data{$symb}->{'Excel:scorecol'}).
1425: ':'.
1426: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1427: ($first_data_row+$num_students-1,$formula_data{$symb}->{'Excel:scorecol'});
1428: $excel_sheet->write($row,$cols_output++,
1429: '=AVERAGE('.$range.')');
1430: $excel_sheet->write($row,$cols_output++,
1431: '=MEDIAN('.$range.')');
1432: $excel_sheet->write($row,$cols_output++,
1433: '=STDEV('.$range.')');
1434: $row++;
1435: }
1436: }
1437: ##############################################
1438: # Take care of non-excel initialization
1439: ##############################################
1440: #
1441: # Let the user know what we are doing
1442: my $studentcount = scalar(@Apache::lonstatistics::Students);
1443: if ($env{'form.SelectedStudent'}) {
1444: $studentcount = '1';
1445: }
1446: $r->print('<p>'
1447: .&mt('Compiling Excel spreadsheet for [quant,_1,student]...',$studentcount)
1448: ."</p>\n"
1449: );
1450: $r->rflush();
1451: #
1452: # Initialize progress window
1453: %prog_state=&Apache::lonhtmlcommon::Create_PrgWin($r,$studentcount);
1454: #
1455: &Apache::lonhtmlcommon::Update_PrgWin($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: my $randompick = $seq->randompick();
1494: $cols_output = $formula_data{$symb}->{'Excel:startcol'};
1495: # Keep track of cells to translate in total cell
1496: $total_cell_translation{$formula_data{$symb}->{'Excel:scorecell'}} =
1497: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1498: ($rows_output,$formula_data{$symb}->{'Excel:scorecol'});
1499: # and maximum cell
1500: $maximum_cell_translation{$formula_data{$symb}->{'Excel:maxcell'}} =
1501: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1502: ($rows_output,$formula_data{$symb}->{'Excel:maxcol'});
1503: #
1504: my ($performance,$performance_length,$score,$seq_max,$rawdata);
1505: if ($chosen_output->{'tries'} || $chosen_output->{'correct'}){
1506: ($performance,$performance_length,$score,$seq_max,$rawdata) =
1507: &student_tries_on_sequence($student,\%StudentsData,
1508: $navmap,$seq,'no',$randompick);
1509: } else {
1510: ($performance,$performance_length,$score,$seq_max,$rawdata) =
1511: &student_performance_on_sequence($student,\%StudentsData,
1512: $navmap,$seq,'no',
1513: $chosen_output->{ignore_weight},
1514: $randompick);
1515: }
1516: if ($chosen_output->{'every_problem'}) {
1517: if ($chosen_output->{'correct'}) {
1518: # only indiciate if each item is correct or not
1519: foreach my $value (@$rawdata) {
1520: # positive means correct, 0 or negative means
1521: # incorrect
1522: $value = $value > 0 ? 1 : 0;
1523: $excel_sheet->write($rows_output,$cols_output++,$value);
1524: }
1525: } else {
1526: foreach my $value (@$rawdata) {
1527: if ($score eq ' ' || !defined($value)) {
1528: $cols_output++;
1529: } else {
1530: $excel_sheet->write($rows_output,$cols_output++,
1531: $value);
1532: }
1533: }
1534: }
1535: }
1536: if ($chosen_output->{'sequence_sum'} &&
1537: $chosen_output->{'every_problem'}) {
1538: # Write a formula for the sum of this sequence
1539: my %replaceCells=
1540: ('^'.$formula_data{$symb}->{'Excel:startcell'}.':'.$formula_data{$symb}->{'Excel:endcell'}.'$'
1541: =>
1542: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell($rows_output,$formula_data{$symb}->{'Excel:startcol'}).':'.
1543: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell($rows_output,$formula_data{$symb}->{'Excel:endcol'})
1544: );
1545: # The undef is for the format
1546: $excel_sheet->repeat_formula($rows_output,$cols_output++,
1547: $formula_data{$symb}->{'Excel:sum'},undef,
1548: %replaceCells, %replaceCells);
1549: } elsif ($chosen_output->{'sequence_sum'}) {
1550: if ($score eq ' ') {
1551: $cols_output++;
1552: } else {
1553: $excel_sheet->write($rows_output,$cols_output++,$score);
1554: }
1555: }
1556: if ($chosen_output->{'sequence_max'}) {
1557: $excel_sheet->write($rows_output,$cols_output++,$seq_max);
1558: }
1559: }
1560: #
1561: if ($chosen_output->{'grand_total'}) {
1562: $excel_sheet->repeat_formula($rows_output,$cols_output++,
1563: $total_formula,undef,
1564: %total_cell_translation);
1565: }
1566: if ($chosen_output->{'grand_maximum'}) {
1567: $excel_sheet->repeat_formula($rows_output,$cols_output++,
1568: $maximum_formula,undef,
1569: %maximum_cell_translation);
1570: }
1571: #
1572: # Bookkeeping
1573: $rows_output++;
1574: $cols_output=0;
1575: #
1576: # Update the progress window
1577: &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,'last student');
1578: return;
1579: }
1580:
1581: sub excel_finish {
1582: my ($r) = @_;
1583: if ($request_aborted || ! defined($navmap) || ! defined($excel_sheet)) {
1584: &excel_cleanup();
1585: return;
1586: }
1587: #
1588: # Write the excel file
1589: $excel_workbook->close();
1590: #
1591: # Close the progress window
1592: &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
1593: #
1594: # Tell the user where to get their excel file
1595: $r->print('<br />'.
1596: '<a href="'.$filename.'">'.&mt('Your Excel spreadsheet').'</a>'."\n");
1597: $r->rflush();
1598: &excel_cleanup();
1599: return;
1600: }
1601:
1602: }
1603: #######################################################
1604: #######################################################
1605:
1606: =pod
1607:
1608: =head2 CSV output routines
1609:
1610: =item &csv_initialize($r)
1611:
1612: =item &csv_outputstudent($r,$student)
1613:
1614: =item &csv_finish($r)
1615:
1616: =cut
1617:
1618: #######################################################
1619: #######################################################
1620: {
1621:
1622: my $outputfile;
1623: my $filename;
1624: my $request_aborted;
1625: my %prog_state; # progress window state
1626: my $navmap;
1627: my @sequences;
1628:
1629: sub csv_cleanup {
1630: undef($outputfile);
1631: undef($filename);
1632: undef($request_aborted);
1633: undef(%prog_state);
1634: #
1635: undef($navmap);
1636: undef(@sequences);
1637: }
1638:
1639: sub csv_initialize{
1640: my ($r) = @_;
1641:
1642: &csv_cleanup();
1643: ($navmap,@sequences) =
1644: &Apache::lonstatistics::selected_sequences_with_assessments();
1645: if (! ref($navmap)) {
1646: # Unable to get data, so bail out
1647: $r->print("<h3>".
1648: &mt('Unable to retrieve course information.').
1649: '</h3>');
1650: }
1651: #
1652: # Deal with unimplemented requests
1653: $request_aborted = undef;
1654: if ($chosen_output->{'base'} =~ /final table/) {
1655: $r->print(
1656: '<h2>'.&mt('Unable to Complete Request').'</h2>'
1657: .'<p class="LC_warning">'
1658: .&mt('The [_1]Summary Table (Scores)[_2] option'
1659: .' is not available for non-HTML output.','<b>','</b>')
1660: .'</p>'
1661: );
1662: $request_aborted = 1;
1663: }
1664: return if ($request_aborted);
1665: #
1666: # Initialize progress window
1667: my $studentcount = scalar(@Apache::lonstatistics::Students);
1668: %prog_state=&Apache::lonhtmlcommon::Create_PrgWin($r,$studentcount);
1669: #
1670: # Open a file
1671: ($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(&Apache::lonlocal::locallocaltime(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 $randompick = $seq->randompick();
1775: my ($performance,$performance_length,$score,$seq_max,$rawdata);
1776: if ($chosen_output->{'tries'}){
1777: ($performance,$performance_length,$score,$seq_max,$rawdata) =
1778: &student_tries_on_sequence($student,\%StudentsData,
1779: $navmap,$seq,'no',$randompick);
1780: } else {
1781: ($performance,$performance_length,$score,$seq_max,$rawdata) =
1782: &student_performance_on_sequence($student,\%StudentsData,
1783: $navmap,$seq,'no',
1784: $chosen_output->{ignore_weight},
1785: $randompick);
1786: }
1787: if ($chosen_output->{'every_problem'}) {
1788: if ($chosen_output->{'correct'}) {
1789: $score = 0;
1790: # Deal with number of parts correct data
1791: $Str .= '"'.join('","',( map { if ($_>0) {
1792: $score += 1;
1793: 1;
1794: } else {
1795: 0;
1796: }
1797: } @$rawdata)).'",';
1798: } else {
1799: $Str .= '"'.join('","',(@$rawdata)).'",';
1800: }
1801: }
1802: if ($chosen_output->{'sequence_sum'}) {
1803: $Str .= '"'.$score.'",';
1804: }
1805: if ($chosen_output->{'sequence_max'}) {
1806: $Str .= '"'.$seq_max.'",';
1807: }
1808: $total+=$score;
1809: $maximum += $seq_max;
1810: }
1811: if ($chosen_output->{'grand_total'}) {
1812: $Str .= '"'.$total.'",';
1813: }
1814: if ($chosen_output->{'grand_maximum'}) {
1815: $Str .= '"'.$maximum.'",';
1816: }
1817: chop($Str);
1818: $Str .= "\n";
1819: print $outputfile $Str;
1820: #
1821: # Update the progress window
1822: &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,'last student');
1823: return;
1824: }
1825:
1826: sub csv_finish {
1827: my ($r) = @_;
1828: if ($request_aborted || ! defined($navmap) || ! defined($outputfile)) {
1829: &csv_cleanup();
1830: return;
1831: }
1832: close($outputfile);
1833: #
1834: # Close the progress window
1835: &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
1836: #
1837: # Tell the user where to get their csv file
1838: $r->print('<br />'.
1839: '<a href="'.$filename.'">'.&mt('Your CSV file.').'</a>'."\n");
1840: $r->rflush();
1841: &csv_cleanup();
1842: return;
1843:
1844: }
1845:
1846: }
1847:
1848: # This function will return an HTML string including a star, with
1849: # a mouseover popup showing the "real" value. An optional second
1850: # argument lets you show something other than a star.
1851: sub show_star {
1852: my $popup = shift;
1853: my $symbol = shift || '*';
1854: # Escape the popup for JS.
1855: $popup =~ s/([^-a-zA-Z0-9:;,._ ()|!\/?=&*])/'\\' . sprintf("%lo", ord($1))/ge;
1856:
1857: return "<span class=\"LC_chrt_popup_exists\" onmouseover='popup_score(this, \"$popup\");return false;' onmouseout='popdown_score();return false;'>$symbol</span>";
1858: }
1859:
1860: #######################################################
1861: #######################################################
1862:
1863: =pod
1864:
1865: =item &StudentTriesOnSequence()
1866:
1867: Inputs:
1868:
1869: =over 4
1870:
1871: =item $student
1872:
1873: =item $studentdata Hash ref to all student data
1874:
1875: =item $seq Hash ref, the sequence we are working on
1876:
1877: =item $links if defined we will output links to each resource.
1878:
1879: =back
1880:
1881: =cut
1882:
1883: #######################################################
1884: #######################################################
1885: sub student_tries_on_sequence {
1886: my ($student,$studentdata,$navmap,$seq,$links,$randompick) = @_;
1887: $links = 'no' if (! defined($links));
1888: my $Str = '';
1889: my ($sum,$max) = (0,0);
1890: my $performance_length = 0;
1891: my @TriesData = ();
1892: my $tries;
1893: my $hasdata = 0; # flag - true if the student has any data on the sequence
1894: foreach my $resource (&get_resources($navmap,$seq)) {
1895: my $resource_data = $studentdata->{$resource->symb};
1896: my $value = '';
1897: foreach my $partnum (@{$resource->parts()}) {
1898: $tries = undef;
1899: $max++;
1900: $performance_length++;
1901: my $symbol = ' '; # default to space
1902: #
1903: my $awarded = 0;
1904: if (exists($resource_data->{'resource.'.$partnum.'.awarded'})) {
1905: $awarded = $resource_data->{'resource.'.$partnum.'.awarded'};
1906: $awarded = 0 if (! $awarded);
1907: }
1908: #
1909: my $status = '';
1910: if (exists($resource_data->{'resource.'.$partnum.'.solved'})) {
1911: $status = $resource_data->{'resource.'.$partnum.'.solved'};
1912: }
1913: #
1914: my $tries = 0;
1915: if(exists($resource_data->{'resource.'.$partnum.'.tries'})) {
1916: $tries = $resource_data->{'resource.'.$partnum.'.tries'};
1917: $hasdata =1;
1918: }
1919: #
1920: if ($awarded > 0) {
1921: # The student has gotten the problem correct to some degree
1922: if ($status eq 'excused') {
1923: $symbol = 'x';
1924: $max--;
1925: } elsif ($status eq 'correct_by_override' && !$resource->is_task()) {
1926: $symbol = '+';
1927: $sum++;
1928: } elsif ($tries > 0) {
1929: if ($tries > 9) {
1930: $symbol = show_star($tries);
1931: } else {
1932: $symbol = $tries;
1933: }
1934: $sum++;
1935: } else {
1936: $symbol = '+';
1937: $sum++;
1938: }
1939: } else {
1940: # The student has the problem incorrect or it is ungraded
1941: if ($status eq 'excused') {
1942: $symbol = 'x';
1943: $max--;
1944: } elsif ($status eq 'incorrect_by_override') {
1945: $symbol = '-';
1946: } elsif ($status eq 'ungraded_attempted') {
1947: $symbol = 'u';
1948: } elsif ($status eq 'incorrect_attempted' ||
1949: $tries > 0) {
1950: $symbol = '.';
1951: } else {
1952: # Problem is wrong and has not been attempted.
1953: $symbol=' ';
1954: }
1955: }
1956: #
1957: if (! defined($tries)) {
1958: $tries = 0;
1959: }
1960: if ($status =~ /^(incorrect|ungraded)/) {
1961: # Bug 3390: show '-' for tries on incorrect problems
1962: # (csv & excel only)
1963: push(@TriesData,-$tries);
1964: } else {
1965: push (@TriesData,$tries);
1966: }
1967: #
1968: if ( ($links eq 'yes' && $symbol ne ' ') ||
1969: ($links eq 'all')) {
1970: my $link = '/adm/grades'.
1971: '?symb='.&escape($resource->shown_symb).
1972: '&student='.$student->{'username'}.
1973: '&userdom='.$student->{'domain'}.
1974: '&command=submission';
1975: $symbol = &link($symbol, $link);
1976: }
1977: $value .= $symbol;
1978: }
1979: $Str .= $value;
1980: }
1981: if ($randompick) {
1982: $max = $randompick;
1983: }
1984: if (! $hasdata && $sum == 0) {
1985: $sum = ' ';
1986: }
1987: return ($Str,$performance_length,$sum,$max,\@TriesData);
1988: }
1989:
1990: =pod
1991:
1992: =item &link
1993:
1994: Inputs:
1995:
1996: =over 4
1997:
1998: =item $text
1999:
2000: =item $target
2001:
2002: =back
2003:
2004: Takes the text and creates a link to the $text that honors
2005: the value of 'new window' if clicked on, but uses a real
2006: 'href' so middle and right clicks still work.
2007:
2008: $target and $text are assumed to be already correctly escaped; i.e., it
2009: can be dumped out directly into the output stream as-is.
2010:
2011: =cut
2012:
2013: sub link {
2014: my ($text,$target) = @_;
2015: return
2016: "<a href='$target' onclick=\"t=this.href;if(new_window)"
2017: ."{window.open(t)}else{return void(window."
2018: ."location=t)};return false;\">$text</a>";
2019: }
2020:
2021: #######################################################
2022: #######################################################
2023:
2024: =pod
2025:
2026: =item &student_performance_on_sequence
2027:
2028: Inputs:
2029:
2030: =over 4
2031:
2032: =item $student
2033:
2034: =item $studentdata Hash ref to all student data
2035:
2036: =item $seq Hash ref, the sequence we are working on
2037:
2038: =item $links if defined we will output links to each resource.
2039:
2040: =back
2041:
2042: =cut
2043:
2044: #######################################################
2045: #######################################################
2046: sub student_performance_on_sequence {
2047: my ($student,$studentdata,$navmap,$seq,$links,$awarded_only,$randompick) = @_;
2048: $links = 'no' if (! defined($links));
2049: my $Str = ''; # final result string
2050: my ($score,$max) = (0,0);
2051: my $performance_length = 0;
2052: my $symbol;
2053: my @ScoreData = ();
2054: my $partscore;
2055: my $hasdata = 0; # flag, 0 if there were no submissions on the sequence
2056: my %ptsfreq;
2057: foreach my $resource (&get_resources($navmap,$seq)) {
2058: my $symb = $resource->symb;
2059: my $resource_data = $studentdata->{$symb};
2060: my $resmax = 0;
2061: foreach my $part (@{$resource->parts()}) {
2062: $partscore = undef;
2063: my $weight;
2064: if (!$awarded_only){
2065: $weight = &Apache::lonnet::EXT('resource.'.$part.'.weight',
2066: $symb,
2067: $student->{'domain'},
2068: $student->{'username'},
2069: $student->{'section'});
2070: }
2071: if (!defined($weight) || ($weight eq '')) {
2072: $weight=1;
2073: }
2074: #
2075: $max += $weight; # see the 'excused' branch below...
2076: $resmax += $weight;
2077: $performance_length++; # one character per part
2078: $symbol = ' '; # default to space
2079: #
2080: my $awarded;
2081: if (exists($resource_data->{'resource.'.$part.'.awarded'})) {
2082: $awarded = $resource_data->{'resource.'.$part.'.awarded'};
2083: $awarded = 0 if (! $awarded);
2084: $hasdata = 1;
2085: }
2086: #
2087: $partscore = &Apache::grades::compute_points($weight,$awarded);
2088: if (! defined($awarded)) {
2089: $partscore = undef;
2090: }
2091: $score += $partscore;
2092: $symbol = $partscore;
2093: if (abs($symbol - sprintf("%.0f",$symbol)) < 0.001) {
2094: $symbol = sprintf("%.0f",$symbol);
2095: }
2096: if (length($symbol) > 1) {
2097: $symbol = show_star($symbol);
2098: }
2099: if (exists($resource_data->{'resource.'.$part.'.solved'}) &&
2100: $resource_data->{'resource.'.$part.'.solved'} ne '') {
2101: my $status = $resource_data->{'resource.'.$part.'.solved'};
2102: if ($status eq 'excused') {
2103: $symbol = 'x';
2104: $max -= $weight; # Do not count 'excused' problems.
2105: } elsif ($status eq 'ungraded_attempted') {
2106: $symbol = 'u';
2107: }
2108: $hasdata = 1;
2109: } elsif ($resource_data->{'resource.'.$part.'.award'} eq 'DRAFT') {
2110: $symbol = 'd';
2111: $hasdata = 1;
2112: } elsif (!exists($resource_data->{'resource.'.$part.'.awarded'})){
2113: # Unsolved. Did they try?
2114: if (exists($resource_data->{'resource.'.$part.'.tries'})){
2115: $symbol = '.';
2116: $hasdata = 1;
2117: } else {
2118: $symbol = ' ';
2119: }
2120: }
2121: #
2122: if (! defined($partscore)) {
2123: $partscore = $symbol;
2124: }
2125: push (@ScoreData,$partscore);
2126: #
2127: if ( ($links eq 'yes' && $symbol ne ' ') || ($links eq 'all')) {
2128: my $link = '/adm/grades' .
2129: '?symb='.&escape($resource->shown_symb).
2130: '&student='.$student->{'username'}.
2131: '&userdom='.$student->{'domain'}.
2132: '&command=submission';
2133: $symbol = &link($symbol, $link);
2134: }
2135: $Str .= $symbol;
2136: }
2137: if ($ptsfreq{$resmax}) {
2138: $ptsfreq{$resmax} ++;
2139: } else {
2140: $ptsfreq{$resmax} = 1;
2141: }
2142: }
2143: if ($randompick) {
2144: my @uniquetotals = keys(%ptsfreq);
2145: if ((@uniquetotals = 1) && ($ptsfreq{$uniquetotals[0]} > 0)) {
2146: $max = $max * $randompick/$ptsfreq{$uniquetotals[0]};
2147: }
2148: }
2149: if (! $hasdata && $score == 0) {
2150: $score = ' ';
2151: }
2152: return ($Str,$performance_length,$score,$max,\@ScoreData);
2153: }
2154:
2155: #######################################################
2156: #######################################################
2157:
2158: =pod
2159:
2160: =item &CreateLegend()
2161:
2162: This function returns a formatted string containing the legend for the
2163: chart. The legend describes the symbols used to represent grades for
2164: problems.
2165:
2166: =cut
2167:
2168: #######################################################
2169: #######################################################
2170: sub CreateLegend {
2171: my $Str = "<p><pre>".
2172: " digit score or number of tries to get correct ".
2173: " * correct by student in more than 9 tries\n".
2174: " + correct by hand grading or override\n".
2175: " - incorrect by override\n".
2176: " . incorrect attempted\n".
2177: " u ungraded attempted\n".
2178: " d draft answer saved but not submitted\n".
2179: " not attempted (blank field)\n".
2180: " x excused".
2181: "</pre><p>";
2182: return $Str;
2183: }
2184:
2185: #######################################################
2186: #######################################################
2187:
2188: =pod
2189:
2190: =back
2191:
2192: =cut
2193:
2194: #######################################################
2195: #######################################################
2196:
2197: 1;
2198:
2199: __END__
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