1: # The LearningOnline Network with CAPA
2: #
3: # $Id: lonstudentassessment.pm,v 1.166 2011/12/22 00:28:11 www 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::lonquickgrades();
55: use Apache::lonhtmlcommon();
56: use Apache::loncommon();
57: use Apache::loncoursedata;
58: use Apache::lonnet; # for logging porpoises
59: use Apache::lonlocal;
60: use Apache::grades();
61: use Apache::lonmsgdisplay();
62: use Time::HiRes;
63: use Spreadsheet::WriteExcel;
64: use Spreadsheet::WriteExcel::Utility();
65: use lib '/home/httpd/lib/perl/';
66: use LONCAPA;
67:
68:
69: #######################################################
70: #######################################################
71: =pod
72:
73: =item Package Variables
74:
75: =over 4
76:
77: =item $Statistics Hash ref to store student data. Indexed by symb,
78: contains hashes with keys 'score' and 'max'.
79:
80: =cut
81:
82: #######################################################
83: #######################################################
84:
85: my $Statistics;
86:
87: #######################################################
88: #######################################################
89:
90: =pod
91:
92: =item $show_links 'yes' or 'no' for linking to student performance data
93:
94: =item $output_mode 'html', 'excel', or 'csv' for output mode
95:
96: =item $show 'all', 'totals', or 'scores' determines how much data is output
97:
98: =item $single_student_mode evaluates to true if we are showing only one
99: student.
100:
101: =cut
102:
103: #######################################################
104: #######################################################
105: my $show_links;
106: my $output_mode;
107: my $chosen_output;
108: my $single_student_mode;
109:
110: #######################################################
111: #######################################################
112: # End of package variable declarations
113:
114: =pod
115:
116: =back
117:
118: =cut
119:
120: #######################################################
121: #######################################################
122:
123: =pod
124:
125: =item &BuildStudentAssessmentPage()
126:
127: Inputs:
128:
129: =over 4
130:
131: =item $r Apache Request
132:
133: =item $c Apache Connection
134:
135: =back
136:
137: =cut
138:
139: #######################################################
140: #######################################################
141: sub BuildStudentAssessmentPage {
142: my ($r,$c)=@_;
143: #
144: undef($Statistics);
145: undef($show_links);
146: undef($output_mode);
147: undef($chosen_output);
148: undef($single_student_mode);
149: #
150: my %Saveable_Parameters = ('Status' => 'scalar',
151: 'chartoutputmode' => 'scalar',
152: 'chartoutputdata' => 'scalar',
153: 'Section' => 'array',
154: 'Groups' => 'array',
155: 'StudentData' => 'array',
156: 'Maps' => 'array');
157: &Apache::loncommon::store_course_settings('chart',\%Saveable_Parameters);
158: &Apache::loncommon::restore_course_settings('chart',\%Saveable_Parameters);
159: #
160: &Apache::lonstatistics::PrepareClasslist();
161: #
162: $single_student_mode = 0;
163: $single_student_mode = 1 if ($env{'form.SelectedStudent'});
164: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
165: ['selectstudent']);
166: if ($env{'form.selectstudent'}) {
167: &Apache::lonstatistics::DisplayClasslist($r);
168: return;
169: }
170: $r->print(&Apache::lonhtmlcommon::breadcrumbs('Chart','Chart_Description:Chart_Sections:Chart_Student_Data:Chart_Enrollment_Status:Chart_Sequences:Chart_Output_Formats:Chart_Output_Data'));
171: &Apache::lonquickgrades::startGradeScreen($r,'chart');
172:
173: #
174: # Print out the HTML headers for the interface
175: # This also parses the output mode selector
176: # This step must *always* be done.
177: $r->print(&CreateInterface());
178: $r->print('<input type="hidden" name="notfirstrun" value="true" />');
179: $r->print('<input type="hidden" name="sort" value="'.
180: $env{'form.sort'}.'" />');
181: $r->rflush();
182: #
183: if (! exists($env{'form.notfirstrun'}) && ! $single_student_mode) {
184: return;
185: }
186: $r->print('<h4>'.
187: &Apache::lonstatistics::section_and_enrollment_description().
188: '</h4>');
189: #
190: my $initialize = \&html_initialize;
191: my $output_student = \&html_outputstudent;
192: my $finish = \&html_finish;
193: #
194: if ($output_mode eq 'excel') {
195: $initialize = \&excel_initialize;
196: $output_student = \&excel_outputstudent;
197: $finish = \&excel_finish;
198: } elsif ($output_mode eq 'csv') {
199: $initialize = \&csv_initialize;
200: $output_student = \&csv_outputstudent;
201: $finish = \&csv_finish;
202: }
203: #
204: if($c->aborted()) { return ; }
205: #
206: # Determine which students we want to look at
207: my @Students;
208: if ($single_student_mode) {
209: @Students = (&Apache::lonstatistics::current_student());
210: $r->print(&next_and_previous_buttons());
211: $r->rflush();
212: } else {
213: @Students = @Apache::lonstatistics::Students;
214: }
215: #
216: # Perform generic initialization tasks
217: # Since we use lonnet::EXT to retrieve problem weights,
218: # to ensure current data we must clear the caches out.
219: # This makes sure that parameter changes at the student level
220: # are immediately reflected in the chart.
221: &Apache::lonnet::clear_EXT_cache_status();
222: #
223: # Clean out loncoursedata's package data, just to be safe.
224: &Apache::loncoursedata::clear_internal_caches();
225: #
226: # Call the initialize routine selected above
227: $initialize->($r);
228: foreach my $student (@Students) {
229: if($c->aborted()) {
230: $finish->($r);
231: return ;
232: }
233: # Call the output_student routine selected above
234: $output_student->($r,$student);
235: }
236: # Call the "finish" routine selected above
237: &Apache::lonquickgrades::endGradeScreen($r);
238: $finish->($r);
239: #
240: return;
241: }
242:
243: #######################################################
244: #######################################################
245: sub next_and_previous_buttons {
246: my $Str = '';
247: $Str .= '<input type="hidden" name="SelectedStudent" value="'.
248: $env{'form.SelectedStudent'}.'" />';
249: #
250: # Build the previous student link
251: my $previous = &Apache::lonstatistics::previous_student();
252: my $previousbutton = '';
253: if (defined($previous)) {
254: my $sname = $previous->{'username'}.':'.$previous->{'domain'};
255: $previousbutton .= '<input type="button" value="'.
256: &mt('Previous Student ([_1])',
257: $previous->{'username'}.':'.$previous->{'domain'}).
258: '" onclick="document.Statistics.SelectedStudent.value='.
259: "'".$sname."'".';'.
260: 'document.Statistics.submit();" />';
261: } else {
262: $previousbutton .= '<input type="button" value="'.
263: &mt('Previous Student').'" disabled="disabled" />';
264: }
265: #
266: # Build the next student link
267: my $next = &Apache::lonstatistics::next_student();
268: my $nextbutton = '';
269: if (defined($next)) {
270: my $sname = $next->{'username'}.':'.$next->{'domain'};
271: $nextbutton .= '<input type="button" value="'.
272: &mt('Next Student ([_1])',
273: $next->{'username'}.':'.$next->{'domain'}).
274: '" onclick="document.Statistics.SelectedStudent.value='.
275: "'".$sname."'".';'.
276: 'document.Statistics.submit();" />';
277: } else {
278: $nextbutton .= '<input type="button" value="'.
279: &mt('Next Student').'" disabled="disabled" />';
280: }
281: #
282: # Build the 'all students' button
283: my $all = '';
284: $all .= '<input type="button" value="'.&mt('All Students').'" '.
285: '" onclick="document.Statistics.SelectedStudent.value='.
286: "''".';'.'document.Statistics.submit();" />';
287: $Str .= $previousbutton.(' 'x5).$all.(' 'x5).$nextbutton;
288: return $Str;
289: }
290:
291: #######################################################
292: #######################################################
293:
294: sub get_student_fields_to_show {
295: my @to_show = @Apache::lonstatistics::SelectedStudentData;
296: foreach (@to_show) {
297: if ($_ eq 'all') {
298: @to_show = @Apache::lonstatistics::StudentDataOrder;
299: last;
300: }
301: }
302: return @to_show;
303: }
304:
305: #######################################################
306: #######################################################
307:
308: =pod
309:
310: =item &CreateInterface()
311:
312: Called by &BuildStudentAssessmentPage to create the top part of the
313: page which displays the chart.
314:
315: Inputs: None
316:
317: Returns: A string containing the HTML for the headers and top table for
318: the chart page.
319:
320: =cut
321:
322: #######################################################
323: #######################################################
324: sub CreateInterface {
325: my $Str = '';
326: $Str .= '<table cellspacing="5">'."\n";
327: $Str .= '<tr>';
328: $Str .= '<td align="center"><b>'.&mt('Sections').'</b>'.
329: &Apache::loncommon::help_open_topic("Chart_Sections").
330: '</td>';
331: $Str .= '<td align="center"><b>'.&mt('Groups').'</b>'.
332: '</td>';
333: $Str .= '<td align="center"><b>'.&mt('Student Data').'</b>'.
334: &Apache::loncommon::help_open_topic("Chart_Student_Data").
335: '</td>';
336: $Str .= '<td align="center"><b>'.&mt('Access Status').'</b>'.
337: &Apache::loncommon::help_open_topic("Chart_Enrollment_Status").
338: '</td>';
339: $Str .= '<td align="center"><b>'.&mt('Sequences and Folders').'</b>'.
340: &Apache::loncommon::help_open_topic("Chart_Sequences").
341: '</td>';
342: $Str .= '<td align="center"><b>'.&mt('Output Format').'</b>'.
343: &Apache::loncommon::help_open_topic("Chart_Output_Formats").
344: '</td>';
345: $Str .= '<td align="center"><b>'.&mt('Output Data').'</b>'.
346: &Apache::loncommon::help_open_topic("Chart_Output_Data").
347: '</td>';
348: $Str .= '</tr>'."\n";
349: #
350: $Str .= '<tr><td align="center">'."\n";
351: $Str .= &Apache::lonstatistics::SectionSelect('Section','multiple',5);
352: $Str .= '</td><td align="center">';
353: $Str .= &Apache::lonstatistics::GroupSelect('Group','multiple',5);
354: $Str .= '</td><td align="center">';
355: $Str .= &Apache::lonstatistics::StudentDataSelect('StudentData','multiple',
356: 5,undef);
357: $Str .= '</td><td>'."\n";
358: $Str .= &Apache::lonhtmlcommon::StatusOptions(undef,undef,5);
359: $Str .= '</td><td>'."\n";
360: $Str .= &Apache::lonstatistics::map_select('Maps','multiple,all',5);
361: $Str .= '</td><td>'."\n";
362: $Str .= &CreateAndParseOutputSelector();
363: $Str .= '</td><td>'."\n";
364: $Str .= &CreateAndParseOutputDataSelector();
365: $Str .= '</td></tr>'."\n";
366: $Str .= '</table>'."\n";
367: $Str .= '<input type="submit" name="selectstudent" value="'.
368: &mt('Select One Student').'" />';
369: $Str .= ' 'x5;
370: $Str .= '<input type="submit" name="ClearCache" value="'.
371: &mt('Clear Caches').'" />';
372: $Str .= '<p>'
373: .'<input type="submit" name="Generate Chart"'
374: .' value="'.&mt('Generate Chart').'" />'
375: .'</p>';
376: return $Str;
377: }
378:
379: #######################################################
380: #######################################################
381:
382: =pod
383:
384: =item &CreateAndParseOutputSelector()
385:
386: =cut
387:
388: #######################################################
389: #######################################################
390: my @OutputOptions =
391: ({ name => 'HTML, with links',
392: value => 'html, with links',
393: description => 'Output HTML with each symbol linked to the problem '.
394: 'which generated it.',
395: mode => 'html',
396: show_links => 'yes',
397: },
398: { name => 'HTML, with all links',
399: value => 'html, with all links',
400: description => 'Output HTML with each symbol linked to the problem '.
401: 'which generated it. '.
402: 'This includes links for unattempted problems.',
403: mode => 'html',
404: show_links => 'all',
405: },
406: { name => 'HTML, without links',
407: value => 'html, without links',
408: description => 'Output HTML. By not including links, the size of the'.
409: ' web page is greatly reduced. If your browser crashes on the '.
410: 'full display, try this.',
411: mode => 'html',
412: show_links => 'no',
413: },
414: { name => 'Excel',
415: value => 'excel',
416: description => 'Output an Excel file (compatable with Excel 95).',
417: mode => 'excel',
418: show_links => 'no',
419: },
420: { name => 'CSV',
421: value => 'csv',
422: description => 'Output a comma separated values file suitable for '.
423: 'import into a spreadsheet program. Using this method as opposed '.
424: 'to Excel output allows you to organize your data before importing'.
425: ' it into a spreadsheet program.',
426: mode => 'csv',
427: show_links => 'no',
428: },
429: );
430:
431: sub OutputDescriptions {
432: my $Str = '';
433: $Str .= "<h2>Output Formats</h2>\n";
434: $Str .= "<dl>\n";
435: foreach my $outputmode (@OutputOptions) {
436: $Str .=" <dt>".$outputmode->{'name'}."</dt>\n";
437: $Str .=" <dd>".$outputmode->{'description'}."</dd>\n";
438: }
439: $Str .= "</dl>\n";
440: return $Str;
441: }
442:
443: sub CreateAndParseOutputSelector {
444: my $Str = '';
445: my $elementname = 'chartoutputmode';
446: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
447: [$elementname]);
448: #
449: # Format for output options is 'mode, restrictions';
450: my $selected = (&Apache::loncommon::get_env_multiple('form.'.$elementname))[0];
451: $selected = 'html, without links' if (!$selected);
452:
453: #
454: # Set package variables describing output mode
455: $show_links = 'no';
456: $output_mode = 'html';
457: foreach my $option (@OutputOptions) {
458: next if ($option->{'value'} ne $selected);
459: $output_mode = $option->{'mode'};
460: $show_links = $option->{'show_links'};
461: }
462:
463: #
464: # Build the form element
465: $Str = qq/<select size="5" name="$elementname">/;
466: foreach my $option (@OutputOptions) {
467: $Str .= "\n".' <option value="'.$option->{'value'}.'"';
468: $Str .= " selected " if ($option->{'value'} eq $selected);
469: $Str .= ">".&mt($option->{'name'})."<\/option>";
470: }
471: $Str .= "\n</select>";
472: return $Str;
473: }
474:
475: ##
476: ## Data selector stuff
477: ##
478: my @OutputDataOptions =
479: (
480: { name => 'Scores Summary',
481: base => 'scores',
482: value => 'sum and total',
483: scores => 1,
484: tries => 0,
485: every_problem => 0,
486: sequence_sum => 1,
487: sequence_max => 1,
488: grand_total => 1,
489: grand_maximum => 1,
490: summary_table => 1,
491: maximum_row => 1,
492: ignore_weight => 0,
493: shortdesc => 'Total Score and Maximum Possible for each '.
494: 'Sequence or Folder',
495: longdesc => 'The score of each student as well as the '.
496: ' maximum possible on each Sequence or Folder.',
497: },
498: { name => 'Scores Per Problem',
499: base => 'scores',
500: value => 'scores',
501: scores => 1,
502: tries => 0,
503: correct => 0,
504: every_problem => 1,
505: sequence_sum => 1,
506: sequence_max => 1,
507: grand_total => 1,
508: grand_maximum => 1,
509: summary_table => 1,
510: maximum_row => 1,
511: ignore_weight => 0,
512: shortdesc => 'Score on each Problem Part',
513: longdesc =>'The students score on each problem part, computed as'.
514: 'the part weight * part awarded',
515: },
516: { name =>'Tries',
517: base =>'tries',
518: value => 'tries',
519: scores => 0,
520: tries => 1,
521: correct => 0,
522: every_problem => 1,
523: sequence_sum => 0,
524: sequence_max => 0,
525: grand_total => 0,
526: grand_maximum => 0,
527: summary_table => 0,
528: maximum_row => 0,
529: ignore_weight => 0,
530: shortdesc => 'Number of Tries before success on each Problem Part',
531: longdesc =>'The number of tries before success on each problem part.',
532: non_html_notes => 'negative values indicate an incorrect problem',
533: },
534: { name =>'Parts Correct',
535: base =>'tries',
536: value => 'parts correct total',
537: scores => 0,
538: tries => 0,
539: correct => 1,
540: every_problem => 1,
541: sequence_sum => 1,
542: sequence_max => 1,
543: grand_total => 1,
544: grand_maximum => 1,
545: summary_table => 1,
546: maximum_row => 0,
547: ignore_weight => 1,
548: shortdesc => 'Number of Problem Parts completed successfully',
549: longdesc => 'The Number of Problem Parts completed successfully and '.
550: 'the maximum possible for each student',
551: },
552: );
553:
554: sub HTMLifyOutputDataDescriptions {
555: my $Str = '';
556: $Str .= '<h2>'.&mt('Output Data').'</h2>'."\n";
557: $Str .= "<dl>\n";
558: foreach my $option (@OutputDataOptions) {
559: $Str .= ' <dt>'.$option->{'name'}.'</dt>';
560: $Str .= '<dd>'.$option->{'longdesc'}.'</dd>'."\n";
561: }
562: $Str .= "</dl>\n";
563: return $Str;
564: }
565:
566: sub CreateAndParseOutputDataSelector {
567: my $Str = '';
568: my $elementname = 'chartoutputdata';
569: #
570: my $selected = (&Apache::loncommon::get_env_multiple('form.'.$elementname))[0];
571: $selected = 'scores' if (!$selected);
572:
573: #
574: $chosen_output = $OutputDataOptions[0];
575: foreach my $option (@OutputDataOptions) {
576: if ($option->{'value'} eq $selected) {
577: $chosen_output = $option;
578: }
579: }
580: #
581: # Build the form element
582: $Str = qq/<select size="5" name="$elementname">/;
583: foreach my $option (@OutputDataOptions) {
584: $Str .= "\n".' <option value="'.$option->{'value'}.'"';
585: $Str .= " selected " if ($option->{'value'} eq $chosen_output->{'value'});
586: $Str .= ">".&mt($option->{'name'})."<\/option>";
587: }
588: $Str .= "\n</select>";
589: return $Str;
590:
591: }
592:
593: #######################################################
594: #######################################################
595: sub count_parts {
596: my ($navmap,$sequence) = @_;
597: my @resources = &get_resources($navmap,$sequence);
598: my $count = 0;
599: foreach my $res (@resources) {
600: $count += scalar(@{$res->parts});
601: }
602: return $count;
603: }
604:
605: sub get_resources {
606: my ($navmap,$sequence) = @_;
607: my @resources = $navmap->retrieveResources($sequence,
608: sub { shift->is_problem(); },
609: 0,0,0);
610: return @resources;
611: }
612:
613: #######################################################
614: #######################################################
615:
616: =pod
617:
618: =head2 HTML output routines
619:
620: =item &html_initialize($r)
621:
622: Create labels for the columns of student data to show.
623:
624: =item &html_outputstudent($r,$student)
625:
626: Return a line of the chart for a student.
627:
628: =item &html_finish($r)
629:
630: =cut
631:
632: #######################################################
633: #######################################################
634: {
635: my $padding;
636: my $count;
637:
638: my $nodata_count; # The number of students for which there is no data
639: my %prog_state; # progress state used by loncommon PrgWin routines
640: my $total_sum_width;
641:
642: my %width; # Holds sequence width information
643: my @sequences;
644: my $navmap; # Have to keep this around since weakref is a bit zealous
645:
646: sub html_cleanup {
647: undef(%prog_state);
648: undef(%width);
649: #
650: undef($navmap);
651: undef(@sequences);
652: }
653:
654: sub html_initialize {
655: my ($r) = @_;
656: #
657: $padding = ' 'x3;
658: $count = 0;
659: $nodata_count = 0;
660: &html_cleanup();
661: ($navmap,@sequences) =
662: &Apache::lonstatistics::selected_sequences_with_assessments();
663: if (! ref($navmap)) {
664: # Unable to get data, so bail out
665: $r->print('<p class="LC_error">'
666: .&mt('Unable to retrieve course information.')
667: .'</p>');
668: }
669:
670: # If we're showing links, show a checkbox to open in new
671: # windows.
672: if ($show_links ne 'no') {
673: my $labeltext = &mt('Show links in new window');
674: $r->print(<<NEW_WINDOW_CHECKBOX);
675: <script type="text/javascript">new_window = true;</script>
676: <p><label>
677: <input type="checkbox" checked="checked" onclick="new_window=this.checked" />
678: $labeltext
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:
751: $r->print(<<JS);
752: <script type="text/javascript">
753: // get the left offset of a given widget as an absolute position
754: function getLeftOffset (element) {
755: return collect(element, "offsetLeft");
756: }
757:
758: // get the top offset of a given widget as an absolute position
759: function getTopOffset (element) {
760: return collect(element, "offsetTop");
761: }
762:
763: function collect(element, att) {
764: var val = 0;
765: while(element) {
766: val += element[att];
767: element = element.offsetParent;
768: }
769: return val;
770: }
771:
772: var currentDiv;
773: var currentElement;
774: function popup_score(element, score) {
775: popdown_score();
776: var left = getLeftOffset(element);
777: var top = getTopOffset(element);
778: var div = document.createElement("div");
779: div.className = "LC_chrt_popup";
780: div.appendChild(document.createTextNode(score));
781: div.style.position = "absolute";
782: div.style.top = (top - 25) + "px";
783: div.style.left = (left - 10) + "px";
784: currentDiv = div;
785: document.body.insertBefore(div, document.body.childNodes[0]);
786: element.className = "LC_chrt_popup_up";
787: currentElement = element;
788: }
789:
790: function popdown_score() {
791: if (currentDiv) {
792: document.body.removeChild(currentDiv);
793: }
794: if (currentElement) {
795: currentElement.className = 'LC_chrt_popup_exists';
796: }
797: currentDiv = undefined;
798: }
799: </script>
800: JS
801:
802: #
803: # Let the user know what we are doing
804: my $studentcount = scalar(@Apache::lonstatistics::Students);
805: if ($env{'form.SelectedStudent'}) {
806: $studentcount = '1';
807: }
808: #
809: # Initialize progress window
810: #
811: %prog_state=&Apache::lonhtmlcommon::Create_PrgWin($r,$studentcount);
812: &Apache::lonhtmlcommon::Update_PrgWin($r,\%prog_state,
813: 'Processing first student');
814: $r->print($Str);
815: $r->rflush();
816:
817: return;
818: }
819:
820: sub html_outputstudent {
821: my ($r,$student) = @_;
822: my $Str = '';
823: return if (! defined($navmap));
824: #
825: if($count++ % 5 == 0 && $count > 0) {
826: # $r->print("</pre><pre>");
827: $r->print('</pre>');
828: &Apache::lonhtmlcommon::Increment_PrgWin(
829: $r,\%prog_state,'last five students',5);
830: $r->rflush();
831: $r->print('<pre>');
832: }
833: # First, the @StudentData fields need to be listed
834: my @to_show = &get_student_fields_to_show();
835: foreach my $field (@to_show) {
836: my $title=$student->{$field};
837: # Deal with 'comments' - how I love special cases
838: if ($field eq 'comments') {
839: $title = '<a href="/adm/'.$student->{'domain'}.'/'.$student->{'username'}.'/'.'aboutme#coursecomment">'.&mt('Comments').'</a>';
840: }
841: my $base = length($title);
842: my $width=$Apache::lonstatistics::StudentData{$field}->{'width'};
843: $Str .= $title.' 'x($width-$base).$padding;
844: }
845: # Get ALL the students data
846: my %StudentsData;
847: my @tmp = &Apache::loncoursedata::get_current_state
848: ($student->{'username'},$student->{'domain'},undef,
849: $env{'request.course.id'});
850: if ((scalar @tmp > 0) && ($tmp[0] !~ /^error:(.*)/)) {
851: %StudentsData = @tmp;
852: } else {
853: my $error = $1;
854: if (scalar(@tmp) < 1) {
855: $Str .= '<span class="LC_warning">'
856: .&mt('No Course Data')
857: .'</span>'."\n";
858: } else {
859: $Str .= '<span class="LC_error">'
860: .&mt('Error getting student data ([_1])',$error)
861: .'</span>'."\n";
862: }
863: $nodata_count++;
864: $r->print($Str);
865: $r->rflush();
866: return;
867: }
868: #
869: # By sequence build up the data
870: my $studentstats;
871: my $PerformanceStr = '';
872: foreach my $seq (@sequences) {
873: my $symb = $seq->symb;
874: my $randompick = $seq->randompick();
875: my ($performance,$performance_length,$score,$seq_max,$rawdata);
876: if ($chosen_output->{'tries'}) {
877: ($performance,$performance_length,$score,$seq_max,$rawdata) =
878: &student_tries_on_sequence($student,\%StudentsData,
879: $navmap,$seq,$show_links,$randompick);
880: } else {
881: ($performance,$performance_length,$score,$seq_max,$rawdata) =
882: &student_performance_on_sequence($student,\%StudentsData,
883: $navmap,$seq,$show_links,
884: $chosen_output->{ignore_weight},
885: $randompick);
886: }
887: my $ratio='';
888: if ($chosen_output->{'every_problem'} &&
889: $chosen_output->{'sequence_sum'}) {
890: $ratio .= ' ';
891: }
892: if ($chosen_output->{'sequence_sum'} && $score ne ' ') {
893: my $score .= sprintf("%3.2f",$score);
894: $ratio .= (' 'x(6-length($score))).$score;
895: } elsif($chosen_output->{'sequence_sum'}) {
896: $ratio .= ' 'x6;
897: }
898: if ($chosen_output->{'sequence_max'}) {
899: if ($chosen_output->{'sequence_sum'}) {
900: $ratio .= '/';
901: }
902: my $sequence_total=sprintf("%3.2f",$seq_max);
903: $ratio .= $sequence_total.(' 'x(6-length($sequence_total)));
904: }
905: #
906: if (! $chosen_output->{'every_problem'}) {
907: $performance = '';
908: $performance_length=0;
909: }
910: $performance .= ' 'x($width{$symb}->{'width_total'} -
911: $performance_length -
912: $width{$symb}->{'width_sum'}).
913: $ratio;
914: #
915: $Str .= $performance.$padding;
916: #
917: $studentstats->{$symb}->{'score'}= $score;
918: $studentstats->{$symb}->{'max'} = $seq_max;
919: }
920: #
921: # Total it up and store the statistics info.
922: my ($score,$max);
923: while (my ($symb,$seq_stats) = each (%{$studentstats})) {
924: $Statistics->{$symb}->{'score'} += $seq_stats->{'score'};
925: if ($Statistics->{$symb}->{'max'} < $seq_stats->{'max'}) {
926: $Statistics->{$symb}->{'max'} = $seq_stats->{'max'};
927: }
928: if ($seq_stats->{'score'} ne ' ') {
929: $score += $seq_stats->{'score'};
930: $Statistics->{$symb}->{'num_students'}++;
931: }
932: $max += $seq_stats->{'max'};
933: }
934: if (! defined($score)) {
935: $score = ' ' x $total_sum_width;
936: } else {
937: $score = sprintf("%.2f",$score);
938: $score = (' 'x(6-length($score))).$score;
939: }
940: $Str .= ' '.' 'x($total_sum_width-length($score)).$score.' / '.$max;
941: $Str .= " \n";
942: #
943: $r->print($Str);
944: #
945: # $r->rflush();
946: # &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,'last student');
947: return;
948: }
949:
950: sub html_finish {
951: my ($r) = @_;
952: return if (! defined($navmap));
953: #
954: # Check for suppressed output and close the progress window if so
955: $r->print("</pre>\n");
956: if ($chosen_output->{'summary_table'}) {
957: if ($single_student_mode) {
958: $r->print(&SingleStudentTotal());
959: } else {
960: $r->print(&StudentAverageTotal());
961: }
962: }
963: $r->rflush();
964: &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
965: &html_cleanup();
966: return;
967: }
968:
969: sub StudentAverageTotal {
970: my $Str = '<h3>'.&mt('Summary Tables').'</h3>'.$/;
971: $Str .= &Apache::loncommon::start_data_table();
972: $Str .= &Apache::loncommon::start_data_table_header_row().
973: '<th>'.&mt('Title').'</th>'.
974: '<th>'.&mt('Average').'</th>'.
975: '<th>'.&mt('Maximum').'</th>'.
976: &Apache::loncommon::end_data_table_header_row().$/;
977: foreach my $seq (@sequences) {
978: my $symb = $seq->symb;
979: my $ave;
980: my $num_students = $Statistics->{$symb}->{'num_students'};
981: if ($num_students > 0) {
982: $ave = int(100*
983: ($Statistics->{$symb}->{'score'}/$num_students)
984: )/100;
985: } else {
986: $ave = 0;
987: }
988: my $max = $Statistics->{$symb}->{'max'};
989: $ave = sprintf("%.2f",$ave);
990: $Str .= &Apache::loncommon::start_data_table_row().
991: '<td>'.$seq->compTitle.'</td>'.
992: '<td align="right">'.$ave.' </td>'.
993: '<td align="right">'.$max.' '.'</td>'.
994: &Apache::loncommon::end_data_table_row()."\n";
995: }
996: $Str .= &Apache::loncommon::end_data_table()."\n";
997: return $Str;
998: }
999:
1000: sub SingleStudentTotal {
1001: return if (! defined($navmap));
1002: my $student = &Apache::lonstatistics::current_student();
1003: my $Str = '<h3>'.&mt('Summary table for [_1] ([_2])',
1004: $student->{'fullname'},
1005: $student->{'username'}.':'.$student->{'domain'}).'</h3>';
1006: $Str .= $/;
1007: $Str .= &Apache::loncommon::start_data_table()."\n";
1008: $Str .=
1009: &Apache::loncommon::start_data_table_header_row().
1010: '<th>'.&mt('Sequence or Folder').'</th>';
1011: if ($chosen_output->{'base'} eq 'tries') {
1012: $Str .= '<th>'.&mt('Parts Correct').'</th>';
1013: } else {
1014: $Str .= '<th>'.&mt('Score').'</th>';
1015: }
1016: $Str .= '<th>'.&mt('Maximum').'</th>'.
1017: &Apache::loncommon::end_data_table_header_row()."\n";
1018: my $total = 0;
1019: my $total_max = 0;
1020: foreach my $seq (@sequences) {
1021: my $value = $Statistics->{$seq->symb}->{'score'};
1022: my $max = $Statistics->{$seq->symb}->{'max'};
1023: $Str .= &Apache::loncommon::start_data_table_row().
1024: '<td>'.&HTML::Entities::encode($seq->compTitle).'</td>'.
1025: '<td align="right">'.$value.'</td>'.
1026: '<td align="right">'.$max.'</td>'.
1027: &Apache::loncommon::end_data_table_row()."\n";
1028: $total += $value;
1029: $total_max +=$max;
1030: }
1031: $Str .= &Apache::loncommon::start_data_table_row().
1032: '<td><b>'.&mt('Total').'</b></td>'.
1033: '<td align="right">'.$total.'</td>'.
1034: '<td align="right">'.$total_max.'</td>'.
1035: &Apache::loncommon::end_data_table_row()."\n";
1036: $Str .= &Apache::loncommon::end_data_table()."\n";
1037: return $Str;
1038: }
1039:
1040: }
1041:
1042: #######################################################
1043: #######################################################
1044:
1045: =pod
1046:
1047: =head2 EXCEL subroutines
1048:
1049: =item &excel_initialize($r)
1050:
1051: =item &excel_outputstudent($r,$student)
1052:
1053: =item &excel_finish($r)
1054:
1055: =cut
1056:
1057: #######################################################
1058: #######################################################
1059: {
1060:
1061: my $excel_sheet;
1062: my $excel_workbook;
1063: my $format;
1064:
1065: my $filename;
1066: my $rows_output;
1067: my $cols_output;
1068:
1069: my %prog_state; # progress window state
1070: my $request_aborted;
1071:
1072: my $total_formula;
1073: my $maximum_formula;
1074: my %formula_data;
1075:
1076: my $navmap;
1077: my @sequences;
1078:
1079: sub excel_cleanup {
1080: #
1081: undef ($excel_sheet);
1082: undef ($excel_workbook);
1083: undef ($filename);
1084: undef ($rows_output);
1085: undef ($cols_output);
1086: undef (%prog_state);
1087: undef ($request_aborted);
1088: undef ($total_formula);
1089: undef ($maximum_formula);
1090: #
1091: undef(%formula_data);
1092: #
1093: undef($navmap);
1094: undef(@sequences);
1095: }
1096:
1097: sub excel_initialize {
1098: my ($r) = @_;
1099:
1100: &excel_cleanup();
1101: ($navmap,@sequences) =
1102: &Apache::lonstatistics::selected_sequences_with_assessments();
1103: if (! ref($navmap)) {
1104: # Unable to get data, so bail out
1105: $r->print("<h3>".
1106: &mt('Unable to retrieve course information.').
1107: '</h3>');
1108: }
1109: #
1110: my $total_columns = scalar(&get_student_fields_to_show());
1111: my $num_students = scalar(@Apache::lonstatistics::Students);
1112: #
1113: foreach my $seq (@sequences) {
1114: if ($chosen_output->{'every_problem'}) {
1115: $total_columns+=&count_parts($navmap,$seq);
1116: }
1117: # Add 2 because we need a 'sequence_sum' and 'total' column for each
1118: $total_columns += 2;
1119: }
1120: my $too_many_cols_error_message =
1121: '<h2>'.&mt('Unable to Complete Request').'</h2>'.$/.
1122: '<p>'.&mt('LON-CAPA is unable to produce your Excel spreadsheet because your selections will result in more than 255 columns. Excel allows only 255 columns in a spreadsheet.').'</p>'.$/.
1123: '<p>'.&mt('You may consider reducing the number of <b>Sequences or Folders</b> you have selected.').'</p>'.$/.
1124: '<p>'.&mt('LON-CAPA can produce <b>CSV</b> files of this data or Excel files of the <b>Scores Summary</b> data.').'</p>'.$/;
1125: if ($chosen_output->{'base'} eq 'tries' && $total_columns > 255) {
1126: $r->print($too_many_cols_error_message);
1127: $request_aborted = 1;
1128: }
1129: if ($chosen_output->{'base'} eq 'scores' && $total_columns > 255) {
1130: $r->print($too_many_cols_error_message);
1131: $request_aborted = 1;
1132: }
1133: return if ($request_aborted);
1134: #
1135: #
1136: $excel_workbook = undef;
1137: $excel_sheet = undef;
1138: #
1139: $rows_output = 0;
1140: $cols_output = 0;
1141: #
1142: # Determine rows
1143: my $header_row = $rows_output++;
1144: my $description_row = $rows_output++;
1145: my $notes_row = $rows_output++;
1146: $rows_output++; # blank row
1147: my $summary_header_row;
1148: if ($chosen_output->{'summary_table'}) {
1149: $summary_header_row = $rows_output++;
1150: $rows_output+= scalar(@sequences);
1151: $rows_output++;
1152: }
1153: my $sequence_name_row = $rows_output++;
1154: my $resource_name_row = $rows_output++;
1155: my $maximum_data_row = $rows_output++;
1156: if (! $chosen_output->{'maximum_row'}) {
1157: $rows_output--;
1158: }
1159: my $first_data_row = $rows_output++;
1160: #
1161: # Create sheet
1162: ($excel_workbook,$filename,$format)=
1163: &Apache::loncommon::create_workbook($r);
1164: return if (! defined($excel_workbook));
1165: #
1166: # Add a worksheet
1167: my $sheetname = $env{'course.'.$env{'request.course.id'}.'.description'};
1168: $sheetname = &Apache::loncommon::clean_excel_name($sheetname);
1169: $excel_sheet = $excel_workbook->addworksheet($sheetname);
1170: #
1171: # Put the course description in the header
1172: $excel_sheet->write($header_row,$cols_output++,
1173: $env{'course.'.$env{'request.course.id'}.'.description'},
1174: $format->{'h1'});
1175: $cols_output += 3;
1176: #
1177: # Put a description of the sections listed
1178: my $sectionstring = '';
1179: my @Sections = &Apache::lonstatistics::get_selected_sections();
1180: $excel_sheet->write($header_row,$cols_output++,
1181: &Apache::lonstatistics::section_and_enrollment_description('plaintext'),
1182: $format->{'h3'});
1183: #
1184: # Put the date in there too
1185: $excel_sheet->write($header_row,$cols_output++,
1186: &mt('Compiled on [_1]',&Apache::lonlocal::locallocaltime(time)),$format->{'h3'});
1187: #
1188: $cols_output = 0;
1189: $excel_sheet->write($description_row,$cols_output++,
1190: &mt($chosen_output->{'shortdesc'}),
1191: $format->{'b'});
1192: #
1193: $cols_output = 0;
1194: $excel_sheet->write($notes_row,$cols_output++,
1195: $chosen_output->{'non_html_notes'},
1196: $format->{'i'});
1197:
1198: ##############################################
1199: # Output headings for the raw data
1200: ##############################################
1201: #
1202: # Add the student headers
1203: $cols_output = 0;
1204: foreach my $field (&get_student_fields_to_show()) {
1205: $excel_sheet->write($resource_name_row,$cols_output++,$field,
1206: $format->{'bold'});
1207: }
1208: #
1209: # Add the remaining column headers
1210: my $total_formula_string = '=0';
1211: my $maximum_formula_string = '=0';
1212: foreach my $seq (@sequences) {
1213: my $symb = $seq->symb;
1214: $excel_sheet->write($sequence_name_row,,
1215: $cols_output,$seq->compTitle,$format->{'bold'});
1216: # Determine starting cell
1217: $formula_data{$symb}->{'Excel:startcell'}=
1218: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1219: ($first_data_row,$cols_output);
1220: $formula_data{$symb}->{'Excel:startcol'}=$cols_output;
1221: my $count = 0;
1222: if ($chosen_output->{'every_problem'}) {
1223: # Put the names of the problems and parts into the sheet
1224: foreach my $res (&get_resources($navmap,$seq)) {
1225: if (scalar(@{$res->parts}) > 1) {
1226: foreach my $part (@{$res->parts}) {
1227: $excel_sheet->write($resource_name_row,
1228: $cols_output++,
1229: $res->compTitle.' part '.$res->part_display($part),
1230: $format->{'bold'});
1231: $count++;
1232: }
1233: } else {
1234: $excel_sheet->write($resource_name_row,
1235: $cols_output++,
1236: $res->compTitle,$format->{'bold'});
1237: $count++;
1238: }
1239: }
1240: }
1241: # Determine ending cell
1242: if ($count <= 1) {
1243: $formula_data{$symb}->{'Excel:endcell'} = $formula_data{$symb}->{'Excel:startcell'};
1244: $formula_data{$symb}->{'Excel:endcol'} = $formula_data{$symb}->{'Excel:startcol'};
1245: } else {
1246: $formula_data{$symb}->{'Excel:endcell'} =
1247: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1248: ($first_data_row,$cols_output-1);
1249: $formula_data{$symb}->{'Excel:endcol'} = $cols_output-1;
1250: }
1251: # Create the formula for summing up this sequence
1252: if (! exists($formula_data{$symb}->{'Excel:endcell'}) ||
1253: ! defined($formula_data{$symb}->{'Excel:endcell'})) {
1254: $formula_data{$symb}->{'Excel:endcell'} = $formula_data{$symb}->{'Excel:startcell'};
1255: }
1256:
1257: my $start = $formula_data{$symb}->{'Excel:startcell'};
1258: my $end = $formula_data{$symb}->{'Excel:endcell'};
1259: $formula_data{$symb}->{'Excel:sum'}= $excel_sheet->store_formula
1260: ("=IF(COUNT($start\:$end),SUM($start\:$end),\"\")");
1261: # Determine cell the score is held in
1262: $formula_data{$symb}->{'Excel:scorecell'} =
1263: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1264: ($first_data_row,$cols_output);
1265: $formula_data{$symb}->{'Excel:scorecol'}=$cols_output;
1266: if ($chosen_output->{'base'} eq 'parts correct total') {
1267: $excel_sheet->write($resource_name_row,$cols_output++,
1268: &mt('parts correct'),
1269: $format->{'bold'});
1270: } elsif ($chosen_output->{'sequence_sum'}) {
1271: if ($chosen_output->{'correct'}) {
1272: # Only reporting the number correct, so do not call it score
1273: $excel_sheet->write($resource_name_row,$cols_output++,
1274: &mt('sum'),
1275: $format->{'bold'});
1276: } else {
1277: $excel_sheet->write($resource_name_row,$cols_output++,
1278: &mt('score'),
1279: $format->{'bold'});
1280: }
1281: }
1282: #
1283: $total_formula_string.='+'.
1284: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1285: ($first_data_row,$cols_output-1);
1286: if ($chosen_output->{'sequence_max'}) {
1287: $excel_sheet->write($resource_name_row,$cols_output,
1288: &mt('maximum'),
1289: $format->{'bold'});
1290: $formula_data{$symb}->{'Excel:maxcell'} =
1291: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1292: ($first_data_row,$cols_output);
1293: $formula_data{$symb}->{'Excel:maxcol'}=$cols_output;
1294: $maximum_formula_string.='+'.
1295: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1296: ($first_data_row,$cols_output);
1297: $cols_output++;
1298:
1299: }
1300: }
1301: if ($chosen_output->{'grand_total'}) {
1302: $excel_sheet->write($resource_name_row,$cols_output++,&mt('Total'),
1303: $format->{'bold'});
1304: }
1305: if ($chosen_output->{'grand_maximum'}) {
1306: $excel_sheet->write($resource_name_row,$cols_output++,&mt('Max. Total'),
1307: $format->{'bold'});
1308: }
1309: $total_formula = $excel_sheet->store_formula($total_formula_string);
1310: $maximum_formula = $excel_sheet->store_formula($maximum_formula_string);
1311: ##############################################
1312: # Output a row for MAX, if appropriate
1313: ##############################################
1314: if ($chosen_output->{'maximum_row'}) {
1315: $cols_output = 0;
1316: foreach my $field (&get_student_fields_to_show()) {
1317: if ($field eq 'username' || $field eq 'fullname' ||
1318: $field eq 'id') {
1319: $excel_sheet->write($maximum_data_row,$cols_output++,'Maximum',
1320: $format->{'bold'});
1321: } else {
1322: $excel_sheet->write($maximum_data_row,$cols_output++,'');
1323: }
1324: }
1325: #
1326: # Add the maximums for each sequence or assessment
1327: my %total_cell_translation;
1328: my %maximum_cell_translation;
1329: foreach my $seq (@sequences) {
1330: my $symb = $seq->symb;
1331: $cols_output=$formula_data{$symb}->{'Excel:startcol'};
1332: $total_cell_translation{$formula_data{$symb}->{'Excel:scorecell'}}=
1333: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1334: ($maximum_data_row,$formula_data{$symb}->{'Excel:scorecol'});
1335: $maximum_cell_translation{$formula_data{$symb}->{'Excel:maxcell'}}=
1336: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1337: ($maximum_data_row,$formula_data{$symb}->{'Excel:maxcol'});
1338: my $weight;
1339: my $max = 0;
1340: foreach my $resource (&get_resources($navmap,$seq)) {
1341: foreach my $part (@{$resource->parts}){
1342: $weight = 1;
1343: if ($chosen_output->{'scores'}) {
1344: $weight = &Apache::lonnet::EXT
1345: ('resource.'.$part.'.weight',$resource->symb,
1346: undef,undef,undef);
1347: if (!defined($weight) || ($weight eq '')) {
1348: $weight=1;
1349: }
1350: }
1351: if ($chosen_output->{'scores'} &&
1352: $chosen_output->{'every_problem'}) {
1353: $excel_sheet->write($maximum_data_row,$cols_output++,
1354: $weight);
1355: }
1356: $max += $weight;
1357: }
1358: }
1359: #
1360: if ($chosen_output->{'sequence_sum'} &&
1361: $chosen_output->{'every_problem'}) {
1362: my %replaceCells=
1363: ('^'.$formula_data{$symb}->{'Excel:startcell'}.':'.
1364: $formula_data{$symb}->{'Excel:endcell'}.'$' =>
1365: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell($maximum_data_row,$formula_data{$symb}->{'Excel:startcol'}).':'.
1366: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell($maximum_data_row,$formula_data{$symb}->{'Excel:endcol'}));
1367: $excel_sheet->repeat_formula($maximum_data_row,$cols_output++,
1368: $formula_data{$symb}->{'Excel:sum'},undef,
1369: %replaceCells, %replaceCells);
1370:
1371: } elsif ($chosen_output->{'sequence_sum'}) {
1372: $excel_sheet->write($maximum_data_row,$cols_output++,$max);
1373: }
1374: if ($chosen_output->{'sequence_max'}) {
1375: $excel_sheet->write($maximum_data_row,$cols_output++,$max);
1376: }
1377: #
1378: }
1379: if ($chosen_output->{'grand_total'}) {
1380: $excel_sheet->repeat_formula($maximum_data_row,$cols_output++,
1381: $total_formula,undef,
1382: %total_cell_translation);
1383: }
1384: if ($chosen_output->{'grand_maximum'}) {
1385: $excel_sheet->repeat_formula($maximum_data_row,$cols_output++,
1386: $maximum_formula,undef,
1387: %maximum_cell_translation);
1388: }
1389: } # End of MAXIMUM row output if ($chosen_output->{'maximum_row'}) {
1390: $rows_output = $first_data_row;
1391: ##############################################
1392: # Output summary table, which actually is above the sequence name row.
1393: ##############################################
1394: if ($chosen_output->{'summary_table'}) {
1395: $cols_output = 0;
1396: $excel_sheet->write($summary_header_row,$cols_output++,
1397: &mt('Summary Table'),$format->{'bold'});
1398: if ($chosen_output->{'maximum_row'}) {
1399: $excel_sheet->write($summary_header_row,$cols_output++,
1400: &mt('Maximum'),$format->{'bold'});
1401: }
1402: $excel_sheet->write($summary_header_row,$cols_output++,
1403: &mt('Average'),$format->{'bold'});
1404: $excel_sheet->write($summary_header_row,$cols_output++,
1405: &mt('Median'),$format->{'bold'});
1406: $excel_sheet->write($summary_header_row,$cols_output++,
1407: &mt('Std Dev'),$format->{'bold'});
1408: my $row = $summary_header_row+1;
1409: foreach my $seq (@sequences) {
1410: my $symb = $seq->symb;
1411: $cols_output = 0;
1412: $excel_sheet->write($row,$cols_output++,
1413: $seq->compTitle,
1414: $format->{'bold'});
1415: if ($chosen_output->{'maximum_row'}) {
1416: $excel_sheet->write
1417: ($row,$cols_output++,
1418: '='.
1419: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1420: ($maximum_data_row,$formula_data{$symb}->{'Excel:scorecol'})
1421: );
1422: }
1423: my $range =
1424: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1425: ($first_data_row,$formula_data{$symb}->{'Excel:scorecol'}).
1426: ':'.
1427: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1428: ($first_data_row+$num_students-1,$formula_data{$symb}->{'Excel:scorecol'});
1429: $excel_sheet->write($row,$cols_output++,
1430: '=AVERAGE('.$range.')');
1431: $excel_sheet->write($row,$cols_output++,
1432: '=MEDIAN('.$range.')');
1433: $excel_sheet->write($row,$cols_output++,
1434: '=STDEV('.$range.')');
1435: $row++;
1436: }
1437: }
1438: ##############################################
1439: # Take care of non-excel initialization
1440: ##############################################
1441: #
1442: # Let the user know what we are doing
1443: my $studentcount = scalar(@Apache::lonstatistics::Students);
1444: if ($env{'form.SelectedStudent'}) {
1445: $studentcount = '1';
1446: }
1447: $r->print('<p>'
1448: .&mt('Compiling Excel spreadsheet for [quant,_1,student]...',$studentcount)
1449: ."</p>\n"
1450: );
1451: $r->rflush();
1452: #
1453: # Initialize progress window
1454: %prog_state=&Apache::lonhtmlcommon::Create_PrgWin($r,$studentcount);
1455: #
1456: &Apache::lonhtmlcommon::Update_PrgWin($r,\%prog_state,
1457: 'Processing first student');
1458: return;
1459: }
1460:
1461: sub excel_outputstudent {
1462: my ($r,$student) = @_;
1463: if ($request_aborted || ! defined($navmap) || ! defined($excel_sheet)) {
1464: return;
1465: }
1466: $cols_output=0;
1467: #
1468: # Write out student data
1469: my @to_show = &get_student_fields_to_show();
1470: foreach my $field (@to_show) {
1471: my $value = $student->{$field};
1472: if ($field eq 'comments') {
1473: $value = &Apache::lonmsgdisplay::retrieve_instructor_comments
1474: ($student->{'username'},$student->{'domain'});
1475: }
1476: $excel_sheet->write($rows_output,$cols_output++,$value);
1477: }
1478: #
1479: # Get student assessment data
1480: my %StudentsData;
1481: my @tmp = &Apache::loncoursedata::get_current_state($student->{'username'},
1482: $student->{'domain'},
1483: undef,
1484: $env{'request.course.id'});
1485: if ((scalar @tmp > 0) && ($tmp[0] !~ /^error:/)) {
1486: %StudentsData = @tmp;
1487: }
1488: #
1489: # Write out sequence scores and totals data
1490: my %total_cell_translation;
1491: my %maximum_cell_translation;
1492: foreach my $seq (@sequences) {
1493: my $symb = $seq->symb;
1494: my $randompick = $seq->randompick();
1495: $cols_output = $formula_data{$symb}->{'Excel:startcol'};
1496: # Keep track of cells to translate in total cell
1497: $total_cell_translation{$formula_data{$symb}->{'Excel:scorecell'}} =
1498: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1499: ($rows_output,$formula_data{$symb}->{'Excel:scorecol'});
1500: # and maximum cell
1501: $maximum_cell_translation{$formula_data{$symb}->{'Excel:maxcell'}} =
1502: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1503: ($rows_output,$formula_data{$symb}->{'Excel:maxcol'});
1504: #
1505: my ($performance,$performance_length,$score,$seq_max,$rawdata);
1506: if ($chosen_output->{'tries'} || $chosen_output->{'correct'}){
1507: ($performance,$performance_length,$score,$seq_max,$rawdata) =
1508: &student_tries_on_sequence($student,\%StudentsData,
1509: $navmap,$seq,'no',$randompick);
1510: } else {
1511: ($performance,$performance_length,$score,$seq_max,$rawdata) =
1512: &student_performance_on_sequence($student,\%StudentsData,
1513: $navmap,$seq,'no',
1514: $chosen_output->{ignore_weight},
1515: $randompick);
1516: }
1517: if ($chosen_output->{'every_problem'}) {
1518: if ($chosen_output->{'correct'}) {
1519: # only indiciate if each item is correct or not
1520: foreach my $value (@$rawdata) {
1521: # positive means correct, 0 or negative means
1522: # incorrect
1523: $value = $value > 0 ? 1 : 0;
1524: $excel_sheet->write($rows_output,$cols_output++,$value);
1525: }
1526: } else {
1527: foreach my $value (@$rawdata) {
1528: if ($score eq ' ' || !defined($value)) {
1529: $cols_output++;
1530: } else {
1531: $excel_sheet->write($rows_output,$cols_output++,
1532: $value);
1533: }
1534: }
1535: }
1536: }
1537: if ($chosen_output->{'sequence_sum'} &&
1538: $chosen_output->{'every_problem'}) {
1539: # Write a formula for the sum of this sequence
1540: my %replaceCells=
1541: ('^'.$formula_data{$symb}->{'Excel:startcell'}.':'.$formula_data{$symb}->{'Excel:endcell'}.'$'
1542: =>
1543: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell($rows_output,$formula_data{$symb}->{'Excel:startcol'}).':'.
1544: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell($rows_output,$formula_data{$symb}->{'Excel:endcol'})
1545: );
1546: # The undef is for the format
1547: $excel_sheet->repeat_formula($rows_output,$cols_output++,
1548: $formula_data{$symb}->{'Excel:sum'},undef,
1549: %replaceCells, %replaceCells);
1550: } elsif ($chosen_output->{'sequence_sum'}) {
1551: if ($score eq ' ') {
1552: $cols_output++;
1553: } else {
1554: $excel_sheet->write($rows_output,$cols_output++,$score);
1555: }
1556: }
1557: if ($chosen_output->{'sequence_max'}) {
1558: $excel_sheet->write($rows_output,$cols_output++,$seq_max);
1559: }
1560: }
1561: #
1562: if ($chosen_output->{'grand_total'}) {
1563: $excel_sheet->repeat_formula($rows_output,$cols_output++,
1564: $total_formula,undef,
1565: %total_cell_translation);
1566: }
1567: if ($chosen_output->{'grand_maximum'}) {
1568: $excel_sheet->repeat_formula($rows_output,$cols_output++,
1569: $maximum_formula,undef,
1570: %maximum_cell_translation);
1571: }
1572: #
1573: # Bookkeeping
1574: $rows_output++;
1575: $cols_output=0;
1576: #
1577: # Update the progress window
1578: &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,'last student');
1579: return;
1580: }
1581:
1582: sub excel_finish {
1583: my ($r) = @_;
1584: if ($request_aborted || ! defined($navmap) || ! defined($excel_sheet)) {
1585: &excel_cleanup();
1586: return;
1587: }
1588: #
1589: # Write the excel file
1590: $excel_workbook->close();
1591: #
1592: # Close the progress window
1593: &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
1594: #
1595: # Tell the user where to get their excel file
1596: $r->print('<br />'.
1597: '<a href="'.$filename.'">'.&mt('Your Excel spreadsheet').'</a>'."\n");
1598: $r->rflush();
1599: &excel_cleanup();
1600: return;
1601: }
1602:
1603: }
1604: #######################################################
1605: #######################################################
1606:
1607: =pod
1608:
1609: =head2 CSV output routines
1610:
1611: =item &csv_initialize($r)
1612:
1613: =item &csv_outputstudent($r,$student)
1614:
1615: =item &csv_finish($r)
1616:
1617: =cut
1618:
1619: #######################################################
1620: #######################################################
1621: {
1622:
1623: my $outputfile;
1624: my $filename;
1625: my $request_aborted;
1626: my %prog_state; # progress window state
1627: my $navmap;
1628: my @sequences;
1629:
1630: sub csv_cleanup {
1631: undef($outputfile);
1632: undef($filename);
1633: undef($request_aborted);
1634: undef(%prog_state);
1635: #
1636: undef($navmap);
1637: undef(@sequences);
1638: }
1639:
1640: sub csv_initialize{
1641: my ($r) = @_;
1642:
1643: &csv_cleanup();
1644: ($navmap,@sequences) =
1645: &Apache::lonstatistics::selected_sequences_with_assessments();
1646: if (! ref($navmap)) {
1647: # Unable to get data, so bail out
1648: $r->print("<h3>".
1649: &mt('Unable to retrieve course information.').
1650: '</h3>');
1651: }
1652: #
1653: # Deal with unimplemented requests
1654: $request_aborted = undef;
1655: if ($chosen_output->{'base'} =~ /final table/) {
1656: $r->print(<<END);
1657: <h2>Unable to Complete Request</h2>
1658: <p>
1659: The <b>Summary Table (Scores)</b> option is not available for non-HTML output.
1660: </p>
1661: END
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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