Annotation of loncom/interface/statistics/lonstudentassessment.pm, revision 1.150.2.5
1.1 stredwic 1: # The LearningOnline Network with CAPA
2: #
1.150.2.5! raeburn 3: # $Id: lonstudentassessment.pm,v 1.150.2.4 2010/02/12 15:11:08 raeburn Exp $
1.1 stredwic 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
1.28 matthew 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: #######################################################
1.1 stredwic 49:
1.21 minaeibi 50: package Apache::lonstudentassessment;
1.1 stredwic 51:
52: use strict;
1.136 albertel 53: use Apache::lonstatistics();
54: use Apache::lonhtmlcommon();
1.77 matthew 55: use Apache::loncommon();
1.1 stredwic 56: use Apache::loncoursedata;
1.28 matthew 57: use Apache::lonnet; # for logging porpoises
1.75 matthew 58: use Apache::lonlocal;
1.136 albertel 59: use Apache::grades();
60: use Apache::lonmsgdisplay();
1.112 matthew 61: use Time::HiRes;
1.31 matthew 62: use Spreadsheet::WriteExcel;
1.76 matthew 63: use Spreadsheet::WriteExcel::Utility();
1.140 www 64: use lib '/home/httpd/lib/perl/';
65: use LONCAPA;
66:
1.31 matthew 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: #######################################################
1.1 stredwic 83:
1.30 matthew 84: my $Statistics;
85:
1.28 matthew 86: #######################################################
87: #######################################################
88:
89: =pod
90:
1.31 matthew 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:
1.32 matthew 95: =item $show 'all', 'totals', or 'scores' determines how much data is output
1.31 matthew 96:
1.49 matthew 97: =item $single_student_mode evaluates to true if we are showing only one
98: student.
99:
1.31 matthew 100: =cut
101:
102: #######################################################
103: #######################################################
104: my $show_links;
105: my $output_mode;
1.87 matthew 106: my $chosen_output;
1.49 matthew 107: my $single_student_mode;
1.28 matthew 108:
1.31 matthew 109: #######################################################
110: #######################################################
111: # End of package variable declarations
1.28 matthew 112:
1.31 matthew 113: =pod
1.28 matthew 114:
1.31 matthew 115: =back
1.28 matthew 116:
1.31 matthew 117: =cut
1.28 matthew 118:
1.31 matthew 119: #######################################################
120: #######################################################
1.28 matthew 121:
1.31 matthew 122: =pod
1.28 matthew 123:
1.31 matthew 124: =item &BuildStudentAssessmentPage()
1.28 matthew 125:
1.31 matthew 126: Inputs:
1.4 stredwic 127:
1.31 matthew 128: =over 4
1.28 matthew 129:
130: =item $r Apache Request
131:
132: =item $c Apache Connection
133:
134: =back
135:
136: =cut
137:
138: #######################################################
139: #######################################################
1.1 stredwic 140: sub BuildStudentAssessmentPage {
1.30 matthew 141: my ($r,$c)=@_;
1.74 matthew 142: #
1.30 matthew 143: undef($Statistics);
1.66 matthew 144: undef($show_links);
145: undef($output_mode);
1.87 matthew 146: undef($chosen_output);
1.66 matthew 147: undef($single_student_mode);
1.74 matthew 148: #
149: my %Saveable_Parameters = ('Status' => 'scalar',
150: 'chartoutputmode' => 'scalar',
151: 'chartoutputdata' => 'scalar',
152: 'Section' => 'array',
1.139 raeburn 153: 'Groups' => 'array',
1.74 matthew 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: #
1.65 matthew 161: $single_student_mode = 0;
1.121 albertel 162: $single_student_mode = 1 if ($env{'form.SelectedStudent'});
1.100 matthew 163: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
164: ['selectstudent']);
1.121 albertel 165: if ($env{'form.selectstudent'}) {
1.59 matthew 166: &Apache::lonstatistics::DisplayClasslist($r);
167: return;
168: }
1.30 matthew 169: #
1.31 matthew 170: # Print out the HTML headers for the interface
171: # This also parses the output mode selector
1.54 matthew 172: # This step must *always* be done.
1.30 matthew 173: $r->print(&CreateInterface());
1.31 matthew 174: $r->print('<input type="hidden" name="notfirstrun" value="true" />');
1.49 matthew 175: $r->print('<input type="hidden" name="sort" value="'.
1.121 albertel 176: $env{'form.sort'}.'" />');
1.7 stredwic 177: $r->rflush();
1.58 matthew 178: #
1.121 albertel 179: if (! exists($env{'form.notfirstrun'}) && ! $single_student_mode) {
1.31 matthew 180: return;
181: }
1.119 matthew 182: $r->print('<h4>'.
183: &Apache::lonstatistics::section_and_enrollment_description().
184: '</h4>');
1.31 matthew 185: #
186: my $initialize = \&html_initialize;
187: my $output_student = \&html_outputstudent;
188: my $finish = \&html_finish;
189: #
190: if ($output_mode eq 'excel') {
191: $initialize = \&excel_initialize;
192: $output_student = \&excel_outputstudent;
193: $finish = \&excel_finish;
194: } elsif ($output_mode eq 'csv') {
195: $initialize = \&csv_initialize;
196: $output_student = \&csv_outputstudent;
197: $finish = \&csv_finish;
198: }
1.30 matthew 199: #
200: if($c->aborted()) { return ; }
1.31 matthew 201: #
1.49 matthew 202: # Determine which students we want to look at
203: my @Students;
204: if ($single_student_mode) {
205: @Students = (&Apache::lonstatistics::current_student());
206: $r->print(&next_and_previous_buttons());
207: $r->rflush();
208: } else {
209: @Students = @Apache::lonstatistics::Students;
210: }
1.56 matthew 211: #
212: # Perform generic initialization tasks
213: # Since we use lonnet::EXT to retrieve problem weights,
214: # to ensure current data we must clear the caches out.
215: # This makes sure that parameter changes at the student level
216: # are immediately reflected in the chart.
217: &Apache::lonnet::clear_EXT_cache_status();
1.69 matthew 218: #
219: # Clean out loncoursedata's package data, just to be safe.
220: &Apache::loncoursedata::clear_internal_caches();
1.49 matthew 221: #
1.31 matthew 222: # Call the initialize routine selected above
223: $initialize->($r);
1.49 matthew 224: foreach my $student (@Students) {
1.31 matthew 225: if($c->aborted()) {
226: $finish->($r);
227: return ;
1.1 stredwic 228: }
1.31 matthew 229: # Call the output_student routine selected above
230: $output_student->($r,$student);
231: }
232: # Call the "finish" routine selected above
233: $finish->($r);
234: #
235: return;
236: }
237:
238: #######################################################
239: #######################################################
1.49 matthew 240: sub next_and_previous_buttons {
241: my $Str = '';
242: $Str .= '<input type="hidden" name="SelectedStudent" value="'.
1.121 albertel 243: $env{'form.SelectedStudent'}.'" />';
1.49 matthew 244: #
245: # Build the previous student link
246: my $previous = &Apache::lonstatistics::previous_student();
247: my $previousbutton = '';
248: if (defined($previous)) {
249: my $sname = $previous->{'username'}.':'.$previous->{'domain'};
250: $previousbutton .= '<input type="button" value="'.
1.150.2.2 raeburn 251: &mt('Previous Student ([_1])',
252: $previous->{'username'}.':'.$previous->{'domain'}).
1.49 matthew 253: '" onclick="document.Statistics.SelectedStudent.value='.
254: "'".$sname."'".';'.
255: 'document.Statistics.submit();" />';
256: } else {
257: $previousbutton .= '<input type="button" value="'.
1.150.2.2 raeburn 258: &mt('Previous student').'" disabled="disabled" />';
1.49 matthew 259: }
260: #
261: # Build the next student link
262: my $next = &Apache::lonstatistics::next_student();
263: my $nextbutton = '';
264: if (defined($next)) {
265: my $sname = $next->{'username'}.':'.$next->{'domain'};
266: $nextbutton .= '<input type="button" value="'.
1.150.2.2 raeburn 267: &mt('Next Student ([_1])',
268: $next->{'username'}.':'.$next->{'domain'}).
1.49 matthew 269: '" onclick="document.Statistics.SelectedStudent.value='.
1.150.2.2 raeburn 270: "'$sname'".';'.
1.49 matthew 271: 'document.Statistics.submit();" />';
272: } else {
273: $nextbutton .= '<input type="button" value="'.
1.150.2.2 raeburn 274: &mt('Next student').'" disabled="disabled" />';
1.49 matthew 275: }
276: #
277: # Build the 'all students' button
278: my $all = '';
1.150.2.2 raeburn 279: $all .= '<input type="button" value="'.&mt('All Students').'" '.
1.49 matthew 280: '" onclick="document.Statistics.SelectedStudent.value='.
281: "''".';'.'document.Statistics.submit();" />';
282: $Str .= $previousbutton.(' 'x5).$all.(' 'x5).$nextbutton;
283: return $Str;
284: }
285:
286: #######################################################
287: #######################################################
1.30 matthew 288:
1.31 matthew 289: sub get_student_fields_to_show {
290: my @to_show = @Apache::lonstatistics::SelectedStudentData;
291: foreach (@to_show) {
292: if ($_ eq 'all') {
293: @to_show = @Apache::lonstatistics::StudentDataOrder;
294: last;
295: }
296: }
297: return @to_show;
298: }
299:
1.28 matthew 300: #######################################################
301: #######################################################
302:
303: =pod
1.2 stredwic 304:
1.28 matthew 305: =item &CreateInterface()
1.21 minaeibi 306:
1.28 matthew 307: Called by &BuildStudentAssessmentPage to create the top part of the
308: page which displays the chart.
309:
1.30 matthew 310: Inputs: None
1.28 matthew 311:
312: Returns: A string containing the HTML for the headers and top table for
313: the chart page.
314:
315: =cut
316:
317: #######################################################
318: #######################################################
1.2 stredwic 319: sub CreateInterface {
1.4 stredwic 320: my $Str = '';
1.141 albertel 321: $Str .= &Apache::lonhtmlcommon::breadcrumbs('Chart','Chart_Description:Chart_Sections:Chart_Student_Data:Chart_Enrollment_Status:Chart_Sequences:Chart_Output_Formats:Chart_Output_Data');
1.30 matthew 322: # $Str .= &CreateLegend();
323: $Str .= '<table cellspacing="5">'."\n";
324: $Str .= '<tr>';
1.141 albertel 325: $Str .= '<td align="center"><b>'.&mt('Sections').'</b>'.
326: &Apache::loncommon::help_open_topic("Chart_Sections").
327: '</td>';
328: $Str .= '<td align="center"><b>'.&mt('Groups').'</b>'.
329: '</td>';
1.150.2.4 raeburn 330: $Str .= '<td align="center"><b>'.&mt('Student Data').'</b>'.
1.141 albertel 331: &Apache::loncommon::help_open_topic("Chart_Student_Data").
332: '</td>';
1.143 raeburn 333: $Str .= '<td align="center"><b>'.&mt('Access Status').'</b>'.
1.141 albertel 334: &Apache::loncommon::help_open_topic("Chart_Enrollment_Status").
335: '</td>';
336: $Str .= '<td align="center"><b>'.&mt('Sequences and Folders').'</b>'.
337: &Apache::loncommon::help_open_topic("Chart_Sequences").
338: '</td>';
1.75 matthew 339: $Str .= '<td align="center"><b>'.&mt('Output Format').'</b>'.
1.58 matthew 340: &Apache::loncommon::help_open_topic("Chart_Output_Formats").
341: '</td>';
1.75 matthew 342: $Str .= '<td align="center"><b>'.&mt('Output Data').'</b>'.
1.58 matthew 343: &Apache::loncommon::help_open_topic("Chart_Output_Data").
344: '</td>';
1.30 matthew 345: $Str .= '</tr>'."\n";
346: #
1.4 stredwic 347: $Str .= '<tr><td align="center">'."\n";
1.29 matthew 348: $Str .= &Apache::lonstatistics::SectionSelect('Section','multiple',5);
1.4 stredwic 349: $Str .= '</td><td align="center">';
1.139 raeburn 350: $Str .= &Apache::lonstatistics::GroupSelect('Group','multiple',5);
351: $Str .= '</td><td align="center">';
1.30 matthew 352: $Str .= &Apache::lonstatistics::StudentDataSelect('StudentData','multiple',
353: 5,undef);
1.46 matthew 354: $Str .= '</td><td>'."\n";
355: $Str .= &Apache::lonhtmlcommon::StatusOptions(undef,undef,5);
1.4 stredwic 356: $Str .= '</td><td>'."\n";
1.112 matthew 357: $Str .= &Apache::lonstatistics::map_select('Maps','multiple,all',5);
1.31 matthew 358: $Str .= '</td><td>'."\n";
359: $Str .= &CreateAndParseOutputSelector();
1.54 matthew 360: $Str .= '</td><td>'."\n";
361: $Str .= &CreateAndParseOutputDataSelector();
1.30 matthew 362: $Str .= '</td></tr>'."\n";
363: $Str .= '</table>'."\n";
1.150.2.2 raeburn 364: $Str .= '<p>'.
365: &mt('Status:').' '.
366: '<input type="text" name="stats_status" size="60" value="" readonly="readonly" />'.
367: '</p>';
1.75 matthew 368: $Str .= '<input type="submit" name="selectstudent" value="'.
369: &mt('Select One Student').'" />';
1.59 matthew 370: $Str .= ' 'x5;
1.75 matthew 371: $Str .= '<input type="submit" name="ClearCache" value="'.
372: &mt('Clear Caches').'" />';
1.150.2.2 raeburn 373: $Str .= '<p>'.
374: '<input type="submit" name="Generate Chart"'.
375: ' value="'.&mt('Generate Chart').'" />'.
376: '</p>';
377:
1.4 stredwic 378: return $Str;
1.1 stredwic 379: }
1.30 matthew 380:
381: #######################################################
382: #######################################################
383:
384: =pod
385:
1.31 matthew 386: =item &CreateAndParseOutputSelector()
1.30 matthew 387:
388: =cut
389:
390: #######################################################
391: #######################################################
1.32 matthew 392: my @OutputOptions =
393: ({ name => 'HTML, with links',
394: value => 'html, with links',
1.33 matthew 395: description => 'Output HTML with each symbol linked to the problem '.
1.35 matthew 396: 'which generated it.',
397: mode => 'html',
398: show_links => 'yes',
399: },
1.47 matthew 400: { name => 'HTML, with all links',
401: value => 'html, with all links',
402: description => 'Output HTML with each symbol linked to the problem '.
403: 'which generated it. '.
404: 'This includes links for unattempted problems.',
405: mode => 'html',
406: show_links => 'all',
407: },
1.32 matthew 408: { name => 'HTML, without links',
409: value => 'html, without links',
1.33 matthew 410: description => 'Output HTML. By not including links, the size of the'.
411: ' web page is greatly reduced. If your browser crashes on the '.
1.35 matthew 412: 'full display, try this.',
413: mode => 'html',
414: show_links => 'no',
415: },
1.54 matthew 416: { name => 'Excel',
417: value => 'excel',
418: description => 'Output an Excel file (compatable with Excel 95).',
1.35 matthew 419: mode => 'excel',
420: show_links => 'no',
1.54 matthew 421: },
422: { name => 'CSV',
423: value => 'csv',
1.96 www 424: description => 'Output a comma separated values file suitable for '.
1.57 matthew 425: 'import into a spreadsheet program. Using this method as opposed '.
426: 'to Excel output allows you to organize your data before importing'.
427: ' it into a spreadsheet program.',
1.35 matthew 428: mode => 'csv',
429: show_links => 'no',
430: },
1.32 matthew 431: );
432:
1.33 matthew 433: sub OutputDescriptions {
434: my $Str = '';
1.58 matthew 435: $Str .= "<h2>Output Formats</h2>\n";
1.33 matthew 436: $Str .= "<dl>\n";
437: foreach my $outputmode (@OutputOptions) {
438: $Str .=" <dt>".$outputmode->{'name'}."</dt>\n";
439: $Str .=" <dd>".$outputmode->{'description'}."</dd>\n";
440: }
441: $Str .= "</dl>\n";
442: return $Str;
443: }
444:
1.31 matthew 445: sub CreateAndParseOutputSelector {
446: my $Str = '';
1.44 matthew 447: my $elementname = 'chartoutputmode';
1.73 matthew 448: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
449: [$elementname]);
1.31 matthew 450: #
451: # Format for output options is 'mode, restrictions';
1.122 albertel 452: my $selected = (&Apache::loncommon::get_env_multiple('form.'.$elementname))[0];
453: $selected = 'html, without links' if (!$selected);
454:
1.31 matthew 455: #
456: # Set package variables describing output mode
457: $show_links = 'no';
458: $output_mode = 'html';
1.35 matthew 459: foreach my $option (@OutputOptions) {
460: next if ($option->{'value'} ne $selected);
461: $output_mode = $option->{'mode'};
462: $show_links = $option->{'show_links'};
1.31 matthew 463: }
1.35 matthew 464:
1.31 matthew 465: #
466: # Build the form element
467: $Str = qq/<select size="5" name="$elementname">/;
1.32 matthew 468: foreach my $option (@OutputOptions) {
469: $Str .= "\n".' <option value="'.$option->{'value'}.'"';
470: $Str .= " selected " if ($option->{'value'} eq $selected);
1.75 matthew 471: $Str .= ">".&mt($option->{'name'})."<\/option>";
1.31 matthew 472: }
473: $Str .= "\n</select>";
474: return $Str;
475: }
1.30 matthew 476:
1.54 matthew 477: ##
478: ## Data selector stuff
479: ##
480: my @OutputDataOptions =
1.57 matthew 481: (
1.72 matthew 482: { name => 'Scores Summary',
1.57 matthew 483: base => 'scores',
484: value => 'sum and total',
1.87 matthew 485: scores => 1,
486: tries => 0,
487: every_problem => 0,
488: sequence_sum => 1,
489: sequence_max => 1,
490: grand_total => 1,
1.101 matthew 491: grand_maximum => 1,
1.89 matthew 492: summary_table => 1,
1.90 matthew 493: maximum_row => 1,
1.129 bowersj2 494: ignore_weight => 0,
1.57 matthew 495: shortdesc => 'Total Score and Maximum Possible for each '.
496: 'Sequence or Folder',
497: longdesc => 'The score of each student as well as the '.
498: ' maximum possible on each Sequence or Folder.',
499: },
1.71 matthew 500: { name => 'Scores Per Problem',
1.57 matthew 501: base => 'scores',
1.71 matthew 502: value => 'scores',
1.87 matthew 503: scores => 1,
504: tries => 0,
505: correct => 0,
506: every_problem => 1,
507: sequence_sum => 1,
508: sequence_max => 1,
509: grand_total => 1,
1.101 matthew 510: grand_maximum => 1,
1.89 matthew 511: summary_table => 1,
1.90 matthew 512: maximum_row => 1,
1.129 bowersj2 513: ignore_weight => 0,
1.71 matthew 514: shortdesc => 'Score on each Problem Part',
515: longdesc =>'The students score on each problem part, computed as'.
516: 'the part weight * part awarded',
1.57 matthew 517: },
518: { name =>'Tries',
519: base =>'tries',
520: value => 'tries',
1.87 matthew 521: scores => 0,
522: tries => 1,
523: correct => 0,
524: every_problem => 1,
525: sequence_sum => 0,
526: sequence_max => 0,
527: grand_total => 0,
1.101 matthew 528: grand_maximum => 0,
1.90 matthew 529: summary_table => 0,
530: maximum_row => 0,
1.129 bowersj2 531: ignore_weight => 0,
1.57 matthew 532: shortdesc => 'Number of Tries before success on each Problem Part',
533: longdesc =>'The number of tries before success on each problem part.',
1.109 matthew 534: non_html_notes => 'negative values indicate an incorrect problem',
1.57 matthew 535: },
536: { name =>'Parts Correct',
537: base =>'tries',
538: value => 'parts correct total',
1.87 matthew 539: scores => 0,
540: tries => 0,
541: correct => 1,
542: every_problem => 1,
543: sequence_sum => 1,
544: sequence_max => 1,
545: grand_total => 1,
1.101 matthew 546: grand_maximum => 1,
1.89 matthew 547: summary_table => 1,
1.90 matthew 548: maximum_row => 0,
1.129 bowersj2 549: ignore_weight => 1,
1.150.2.4 raeburn 550: shortdesc => 'Number of Problem Parts completed successfully',
1.57 matthew 551: longdesc => 'The Number of Problem Parts completed successfully and '.
552: 'the maximum possible for each student',
553: },
554: );
555:
556: sub HTMLifyOutputDataDescriptions {
557: my $Str = '';
1.150.2.4 raeburn 558: $Str .= '<h2>'.&mt('Output Data').'</h2>'."\n";
559:
1.57 matthew 560: $Str .= "<dl>\n";
561: foreach my $option (@OutputDataOptions) {
562: $Str .= ' <dt>'.$option->{'name'}.'</dt>';
563: $Str .= '<dd>'.$option->{'longdesc'}.'</dd>'."\n";
564: }
565: $Str .= "</dl>\n";
566: return $Str;
567: }
1.54 matthew 568:
569: sub CreateAndParseOutputDataSelector {
570: my $Str = '';
571: my $elementname = 'chartoutputdata';
572: #
1.122 albertel 573: my $selected = (&Apache::loncommon::get_env_multiple('form.'.$elementname))[0];
574: $selected = 'scores' if (!$selected);
575:
1.54 matthew 576: #
1.87 matthew 577: $chosen_output = $OutputDataOptions[0];
1.54 matthew 578: foreach my $option (@OutputDataOptions) {
579: if ($option->{'value'} eq $selected) {
1.87 matthew 580: $chosen_output = $option;
1.54 matthew 581: }
582: }
583: #
584: # Build the form element
585: $Str = qq/<select size="5" name="$elementname">/;
586: foreach my $option (@OutputDataOptions) {
587: $Str .= "\n".' <option value="'.$option->{'value'}.'"';
1.87 matthew 588: $Str .= " selected " if ($option->{'value'} eq $chosen_output->{'value'});
1.75 matthew 589: $Str .= ">".&mt($option->{'name'})."<\/option>";
1.54 matthew 590: }
591: $Str .= "\n</select>";
592: return $Str;
593:
594: }
595:
1.28 matthew 596: #######################################################
597: #######################################################
1.115 matthew 598: sub count_parts {
599: my ($navmap,$sequence) = @_;
600: my @resources = &get_resources($navmap,$sequence);
601: my $count = 0;
602: foreach my $res (@resources) {
603: $count += scalar(@{$res->parts});
604: }
605: return $count;
606: }
607:
608: sub get_resources {
609: my ($navmap,$sequence) = @_;
610: my @resources = $navmap->retrieveResources($sequence,
611: sub { shift->is_problem(); },
612: 0,0,0);
613: return @resources;
614: }
615:
616: #######################################################
617: #######################################################
1.1 stredwic 618:
1.28 matthew 619: =pod
620:
1.31 matthew 621: =head2 HTML output routines
1.28 matthew 622:
1.31 matthew 623: =item &html_initialize($r)
1.28 matthew 624:
1.31 matthew 625: Create labels for the columns of student data to show.
1.28 matthew 626:
1.31 matthew 627: =item &html_outputstudent($r,$student)
1.28 matthew 628:
1.31 matthew 629: Return a line of the chart for a student.
1.28 matthew 630:
1.31 matthew 631: =item &html_finish($r)
1.28 matthew 632:
633: =cut
634:
635: #######################################################
636: #######################################################
1.31 matthew 637: {
638: my $padding;
639: my $count;
640:
1.39 matthew 641: my $nodata_count; # The number of students for which there is no data
642: my %prog_state; # progress state used by loncommon PrgWin routines
1.102 matthew 643: my $total_sum_width;
1.39 matthew 644:
1.112 matthew 645: my %width; # Holds sequence width information
646: my @sequences;
647: my $navmap; # Have to keep this around since weakref is a bit zealous
648:
1.125 albertel 649: sub html_cleanup {
650: undef(%prog_state);
651: undef(%width);
652: #
653: undef($navmap);
654: undef(@sequences);
655: }
656:
1.31 matthew 657: sub html_initialize {
658: my ($r) = @_;
1.30 matthew 659: #
660: $padding = ' 'x3;
1.35 matthew 661: $count = 0;
1.39 matthew 662: $nodata_count = 0;
1.125 albertel 663: &html_cleanup();
1.115 matthew 664: ($navmap,@sequences) =
665: &Apache::lonstatistics::selected_sequences_with_assessments();
666: if (! ref($navmap)) {
667: # Unable to get data, so bail out
1.150.2.3 raeburn 668: $r->print('<p class="LC_error">'.
1.115 matthew 669: &mt('Unable to retrieve course information.').
1.150.2.2 raeburn 670: '</p>');
1.115 matthew 671: }
1.134 bowersj2 672:
673: # If we're showing links, show a checkbox to open in new
674: # windows.
675: if ($show_links ne 'no') {
1.146 bisitz 676: my $labeltext = &mt('Show links in new window:');
1.134 bowersj2 677: $r->print(<<NEW_WINDOW_CHECKBOX);
1.135 albertel 678: <script type="text/javascript">new_window = true;</script>
1.146 bisitz 679: <p><label>$labeltext
1.150.2.1 raeburn 680: <input type="checkbox" checked="checked" onclick="new_window=this.checked" />
1.135 albertel 681: </label></p>
1.134 bowersj2 682: NEW_WINDOW_CHECKBOX
683: }
684:
1.30 matthew 685: #
1.121 albertel 686: $r->print("<h3>".$env{'course.'.$env{'request.course.id'}.'.description'}.
1.150.2.2 raeburn 687: " ".&Apache::lonlocal::locallocaltime(time)."</h3>");
1.112 matthew 688: #
1.87 matthew 689: if ($chosen_output->{'base'} !~ /^final table/) {
1.146 bisitz 690: $r->print("<h3>".&mt($chosen_output->{'shortdesc'})."</h3>");
1.39 matthew 691: }
1.31 matthew 692: my $Str = "<pre>\n";
1.30 matthew 693: # First, the @StudentData fields need to be listed
1.31 matthew 694: my @to_show = &get_student_fields_to_show();
1.30 matthew 695: foreach my $field (@to_show) {
696: my $title=$Apache::lonstatistics::StudentData{$field}->{'title'};
697: my $base =$Apache::lonstatistics::StudentData{$field}->{'base_width'};
698: my $width=$Apache::lonstatistics::StudentData{$field}->{'width'};
699: $Str .= $title.' 'x($width-$base).$padding;
700: }
1.89 matthew 701: #
702: # Compute the column widths and output the sequence titles
1.102 matthew 703: my $total_count;
1.112 matthew 704: #
705: # Compute sequence widths
706: my $starttime = Time::HiRes::time;
707: foreach my $seq (@sequences) {
708: my $symb = $seq->symb;
709: my $title = $seq->compTitle;
710: $width{$symb}->{'width_sum'} = 0;
711: # Compute width of sum
1.89 matthew 712: if ($chosen_output->{'sequence_sum'}) {
1.99 matthew 713: if ($chosen_output->{'every_problem'}) {
714: # Use 1 digit for a space
1.112 matthew 715: $width{$symb}->{'width_sum'} += 1;
1.99 matthew 716: }
1.118 matthew 717: $total_count += &count_parts($navmap,$seq);
1.89 matthew 718: # Use 3 digits for the sum
1.112 matthew 719: $width{$symb}->{'width_sum'} += 3;
1.89 matthew 720: }
1.112 matthew 721: # Compute width of maximum
1.89 matthew 722: if ($chosen_output->{'sequence_max'}) {
1.112 matthew 723: if ($width{$symb}->{'width_sum'}>0) {
1.89 matthew 724: # One digit for the '/'
1.112 matthew 725: $width{$symb}->{'width_sum'} +=1;
1.89 matthew 726: }
727: # Use 3 digits for the total
1.112 matthew 728: $width{$symb}->{'width_sum'}+=3;
1.89 matthew 729: }
1.94 matthew 730: #
1.89 matthew 731: if ($chosen_output->{'every_problem'}) {
732: # one problem per digit
1.115 matthew 733: $width{$symb}->{'width_parts'}= &count_parts($navmap,$seq);
734: $width{$symb}->{'width_problem'} += $width{$symb}->{'width_parts'};
1.89 matthew 735: } else {
1.112 matthew 736: $width{$symb}->{'width_problem'} = 0;
1.89 matthew 737: }
1.112 matthew 738: $width{$symb}->{'width_total'} = $width{$symb}->{'width_problem'} +
739: $width{$symb}->{'width_sum'};
740: if ($width{$symb}->{'width_total'} < length(&HTML::Entities::decode($title))) {
741: $width{$symb}->{'width_total'} = length(&HTML::Entities::decode($title));
1.89 matthew 742: }
743: #
744: # Output the sequence titles
1.112 matthew 745: $Str .= $title.(' 'x($width{$symb}->{'width_total'}-
746: length($title)
747: )).$padding;
1.30 matthew 748: }
1.102 matthew 749: $total_sum_width = length($total_count)+1;
750: $Str .= " total</pre>\n";
1.31 matthew 751: $Str .= "<pre>";
752: $r->print($Str);
753: $r->rflush();
1.132 bowersj2 754:
755: $r->print(<<JS);
1.142 albertel 756: <script type="text/javascript">
1.132 bowersj2 757: // get the left offset of a given widget as an absolute position
758: function getLeftOffset (element) {
759: return collect(element, "offsetLeft");
760: }
761:
762: // get the top offset of a given widget as an absolute position
763: function getTopOffset (element) {
764: return collect(element, "offsetTop");
765: }
766:
767: function collect(element, att) {
768: var val = 0;
769: while(element) {
770: val += element[att];
771: element = element.offsetParent;
772: }
773: return val;
774: }
775:
776: var currentDiv;
777: var currentElement;
778: function popup_score(element, score) {
779: popdown_score();
780: var left = getLeftOffset(element);
781: var top = getTopOffset(element);
782: var div = document.createElement("div");
1.142 albertel 783: div.className = "LC_chrt_popup";
1.132 bowersj2 784: div.appendChild(document.createTextNode(score));
785: div.style.position = "absolute";
786: div.style.top = (top - 25) + "px";
787: div.style.left = (left - 10) + "px";
788: currentDiv = div;
1.133 bowersj2 789: document.body.insertBefore(div, document.body.childNodes[0]);
1.142 albertel 790: element.className = "LC_chrt_popup_up";
1.132 bowersj2 791: currentElement = element;
792: }
793:
794: function popdown_score() {
795: if (currentDiv) {
796: document.body.removeChild(currentDiv);
797: }
798: if (currentElement) {
1.142 albertel 799: currentElement.className = 'LC_chrt_popup_exists';
1.132 bowersj2 800: }
801: currentDiv = undefined;
802: }
803: </script>
804: JS
805:
1.123 albertel 806: #
807: # Let the user know what we are doing
808: my $studentcount = scalar(@Apache::lonstatistics::Students);
809: if ($env{'form.SelectedStudent'}) {
810: $studentcount = '1';
811: }
812: #
813: # Initialize progress window
814: %prog_state=&Apache::lonhtmlcommon::Create_PrgWin
815: ($r,'HTML Chart Status',
816: 'HTML Chart Progress', $studentcount,
817: 'inline',undef,'Statistics','stats_status');
818: #
819: &Apache::lonhtmlcommon::Update_PrgWin($r,\%prog_state,
820: 'Processing first student');
1.31 matthew 821: return;
1.30 matthew 822: }
823:
1.31 matthew 824: sub html_outputstudent {
825: my ($r,$student) = @_;
1.2 stredwic 826: my $Str = '';
1.112 matthew 827: return if (! defined($navmap));
1.35 matthew 828: #
1.87 matthew 829: if($count++ % 5 == 0 && $count > 0) {
1.35 matthew 830: $r->print("</pre><pre>");
831: }
1.30 matthew 832: # First, the @StudentData fields need to be listed
1.31 matthew 833: my @to_show = &get_student_fields_to_show();
1.30 matthew 834: foreach my $field (@to_show) {
835: my $title=$student->{$field};
1.103 matthew 836: # Deal with 'comments' - how I love special cases
837: if ($field eq 'comments') {
838: $title = '<a href="/adm/'.$student->{'domain'}.'/'.$student->{'username'}.'/'.'aboutme#coursecomment">'.&mt('Comments').'</a>';
839: }
1.31 matthew 840: my $base = length($title);
1.30 matthew 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,
1.121 albertel 848: $env{'request.course.id'});
1.144 albertel 849: if ((scalar @tmp > 0) && ($tmp[0] !~ /^error:(.*)/)) {
1.30 matthew 850: %StudentsData = @tmp;
1.144 albertel 851: } else {
852: my $error = $1;
853: if (scalar(@tmp) < 1) {
1.149 bisitz 854: $Str .= '<span class="LC_warning">'
855: .&mt('No Course Data')
856: .'</span>'."\n";
1.144 albertel 857: } else {
1.149 bisitz 858: $Str .= '<span class="LC_error">'
859: .&mt('Error getting student data ([_1])',$error)
860: .'</span>'."\n";
1.144 albertel 861: }
1.39 matthew 862: $nodata_count++;
1.31 matthew 863: $r->print($Str);
864: $r->rflush();
865: return;
1.30 matthew 866: }
867: #
868: # By sequence build up the data
869: my $studentstats;
1.31 matthew 870: my $PerformanceStr = '';
1.112 matthew 871: foreach my $seq (@sequences) {
1.118 matthew 872: my $symb = $seq->symb;
1.54 matthew 873: my ($performance,$performance_length,$score,$seq_max,$rawdata);
1.87 matthew 874: if ($chosen_output->{'tries'}) {
1.54 matthew 875: ($performance,$performance_length,$score,$seq_max,$rawdata) =
1.112 matthew 876: &student_tries_on_sequence($student,\%StudentsData,
877: $navmap,$seq,$show_links);
1.54 matthew 878: } else {
879: ($performance,$performance_length,$score,$seq_max,$rawdata) =
1.112 matthew 880: &student_performance_on_sequence($student,\%StudentsData,
1.129 bowersj2 881: $navmap,$seq,$show_links,
882: $chosen_output->{ignore_weight});
1.54 matthew 883: }
1.89 matthew 884: my $ratio='';
1.118 matthew 885: if ($chosen_output->{'every_problem'} &&
886: $chosen_output->{'sequence_sum'}) {
1.99 matthew 887: $ratio .= ' ';
888: }
1.97 matthew 889: if ($chosen_output->{'sequence_sum'} && $score ne ' ') {
1.115 matthew 890: my $score .= sprintf("%3.0f",$score);
891: $ratio .= (' 'x(3-length($score))).$score;
1.98 matthew 892: } elsif($chosen_output->{'sequence_sum'}) {
1.97 matthew 893: $ratio .= ' 'x3;
1.89 matthew 894: }
895: if ($chosen_output->{'sequence_max'}) {
896: if ($chosen_output->{'sequence_sum'}) {
897: $ratio .= '/';
898: }
1.99 matthew 899: $ratio .= sprintf("%3.0f",$seq_max);
1.89 matthew 900: }
1.31 matthew 901: #
1.89 matthew 902: if (! $chosen_output->{'every_problem'}) {
903: $performance = '';
1.94 matthew 904: $performance_length=0;
1.30 matthew 905: }
1.118 matthew 906: $performance .= ' 'x($width{$symb}->{'width_total'} -
1.112 matthew 907: $performance_length -
1.118 matthew 908: $width{$symb}->{'width_sum'}).
1.89 matthew 909: $ratio;
1.31 matthew 910: #
911: $Str .= $performance.$padding;
912: #
1.118 matthew 913: $studentstats->{$symb}->{'score'}= $score;
914: $studentstats->{$symb}->{'max'} = $seq_max;
1.30 matthew 915: }
916: #
917: # Total it up and store the statistics info.
1.97 matthew 918: my ($score,$max);
1.30 matthew 919: while (my ($symb,$seq_stats) = each (%{$studentstats})) {
920: $Statistics->{$symb}->{'score'} += $seq_stats->{'score'};
1.54 matthew 921: if ($Statistics->{$symb}->{'max'} < $seq_stats->{'max'}) {
922: $Statistics->{$symb}->{'max'} = $seq_stats->{'max'};
923: }
1.97 matthew 924: if ($seq_stats->{'score'} ne ' ') {
925: $score += $seq_stats->{'score'};
926: $Statistics->{$symb}->{'num_students'}++;
927: }
1.30 matthew 928: $max += $seq_stats->{'max'};
929: }
1.97 matthew 930: if (! defined($score)) {
1.102 matthew 931: $score = ' ' x $total_sum_width;
1.105 matthew 932: } else {
933: $score = sprintf("%.0f",$score);
1.115 matthew 934: $score = (' 'x(3-length($score))).$score;
1.97 matthew 935: }
1.102 matthew 936: $Str .= ' '.' 'x($total_sum_width-length($score)).$score.' / '.$max;
1.30 matthew 937: $Str .= " \n";
1.39 matthew 938: #
1.31 matthew 939: $r->print($Str);
940: #
941: $r->rflush();
1.123 albertel 942: &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,'last student');
1.31 matthew 943: return;
1.30 matthew 944: }
1.2 stredwic 945:
1.31 matthew 946: sub html_finish {
947: my ($r) = @_;
1.112 matthew 948: return if (! defined($navmap));
1.39 matthew 949: #
950: # Check for suppressed output and close the progress window if so
1.87 matthew 951: $r->print("</pre>\n");
1.90 matthew 952: if ($chosen_output->{'summary_table'}) {
953: if ($single_student_mode) {
954: $r->print(&SingleStudentTotal());
955: } else {
956: $r->print(&StudentAverageTotal());
957: }
1.49 matthew 958: }
1.31 matthew 959: $r->rflush();
1.123 albertel 960: &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
1.125 albertel 961: &html_cleanup();
1.31 matthew 962: return;
963: }
964:
1.39 matthew 965: sub StudentAverageTotal {
1.105 matthew 966: my $Str = '<h3>'.&mt('Summary Tables').'</h3>'.$/;
1.150 bisitz 967: $Str .= &Apache::loncommon::start_data_table();
968: $Str .= &Apache::loncommon::start_data_table_header_row().
1.105 matthew 969: '<th>'.&mt('Title').'</th>'.
970: '<th>'.&mt('Average').'</th>'.
971: '<th>'.&mt('Maximum').'</th>'.
1.150 bisitz 972: &Apache::loncommon::end_data_table_header_row().$/;
1.112 matthew 973: foreach my $seq (@sequences) {
974: my $symb = $seq->symb;
1.42 matthew 975: my $ave;
1.112 matthew 976: my $num_students = $Statistics->{$symb}->{'num_students'};
1.97 matthew 977: if ($num_students > 0) {
978: $ave = int(100*
1.112 matthew 979: ($Statistics->{$symb}->{'score'}/$num_students)
1.97 matthew 980: )/100;
1.42 matthew 981: } else {
982: $ave = 0;
983: }
1.112 matthew 984: my $max = $Statistics->{$symb}->{'max'};
1.82 matthew 985: $ave = sprintf("%.2f",$ave);
1.150 bisitz 986: $Str .= &Apache::loncommon::start_data_table_row().
987: '<td>'.$seq->compTitle.'</td>'.
1.82 matthew 988: '<td align="right">'.$ave.' </td>'.
1.150 bisitz 989: '<td align="right">'.$max.' '.'</td>'.
990: &Apache::loncommon::end_data_table_row()."\n";
1.39 matthew 991: }
1.150 bisitz 992: $Str .= &Apache::loncommon::end_data_table()."\n";
1.39 matthew 993: return $Str;
994: }
995:
1.49 matthew 996: sub SingleStudentTotal {
1.115 matthew 997: return if (! defined($navmap));
1.49 matthew 998: my $student = &Apache::lonstatistics::current_student();
1.150.2.4 raeburn 999: my $Str = '<h3>'.&mt('Summary table for [_1] ([_2])',
1.105 matthew 1000: $student->{'fullname'},
1.150.2.4 raeburn 1001: $student->{'username'}.':'.$student->{'domain'}).'</h3>';
1.105 matthew 1002: $Str .= $/;
1.150 bisitz 1003: $Str .= &Apache::loncommon::start_data_table()."\n";
1.49 matthew 1004: $Str .=
1.150 bisitz 1005: &Apache::loncommon::start_data_table_header_row().
1.105 matthew 1006: '<th>'.&mt('Sequence or Folder').'</th>';
1007: if ($chosen_output->{'base'} eq 'tries') {
1008: $Str .= '<th>'.&mt('Parts Correct').'</th>';
1009: } else {
1010: $Str .= '<th>'.&mt('Score').'</th>';
1011: }
1.150 bisitz 1012: $Str .= '<th>'.&mt('Maximum').'</th>'.
1013: &Apache::loncommon::end_data_table_header_row()."\n";
1.49 matthew 1014: my $total = 0;
1015: my $total_max = 0;
1.115 matthew 1016: foreach my $seq (@sequences) {
1.112 matthew 1017: my $value = $Statistics->{$seq->symb}->{'score'};
1018: my $max = $Statistics->{$seq->symb}->{'max'};
1.150 bisitz 1019: $Str .= &Apache::loncommon::start_data_table_row().
1020: '<td>'.&HTML::Entities::encode($seq->compTitle).'</td>'.
1.49 matthew 1021: '<td align="right">'.$value.'</td>'.
1.150 bisitz 1022: '<td align="right">'.$max.'</td>'.
1023: &Apache::loncommon::end_data_table_row()."\n";
1.49 matthew 1024: $total += $value;
1025: $total_max +=$max;
1026: }
1.150 bisitz 1027: $Str .= &Apache::loncommon::start_data_table_row().
1028: '<td><b>'.&mt('Total').'</b></td>'.
1.49 matthew 1029: '<td align="right">'.$total.'</td>'.
1.150 bisitz 1030: '<td align="right">'.$total_max.'</td>'.
1031: &Apache::loncommon::end_data_table_row()."\n";
1032: $Str .= &Apache::loncommon::end_data_table()."\n";
1.49 matthew 1033: return $Str;
1034: }
1035:
1.31 matthew 1036: }
1037:
1038: #######################################################
1039: #######################################################
1040:
1041: =pod
1042:
1043: =head2 EXCEL subroutines
1044:
1045: =item &excel_initialize($r)
1046:
1047: =item &excel_outputstudent($r,$student)
1048:
1049: =item &excel_finish($r)
1050:
1051: =cut
1052:
1053: #######################################################
1054: #######################################################
1055: {
1056:
1057: my $excel_sheet;
1.32 matthew 1058: my $excel_workbook;
1.117 matthew 1059: my $format;
1.32 matthew 1060:
1061: my $filename;
1062: my $rows_output;
1063: my $cols_output;
1064:
1.36 matthew 1065: my %prog_state; # progress window state
1.54 matthew 1066: my $request_aborted;
1.31 matthew 1067:
1.76 matthew 1068: my $total_formula;
1.101 matthew 1069: my $maximum_formula;
1.115 matthew 1070: my %formula_data;
1071:
1072: my $navmap;
1073: my @sequences;
1.76 matthew 1074:
1.125 albertel 1075: sub excel_cleanup {
1.31 matthew 1076: #
1.66 matthew 1077: undef ($excel_sheet);
1078: undef ($excel_workbook);
1079: undef ($filename);
1080: undef ($rows_output);
1081: undef ($cols_output);
1082: undef (%prog_state);
1083: undef ($request_aborted);
1.76 matthew 1084: undef ($total_formula);
1.101 matthew 1085: undef ($maximum_formula);
1.66 matthew 1086: #
1.115 matthew 1087: undef(%formula_data);
1088: #
1089: undef($navmap);
1090: undef(@sequences);
1.125 albertel 1091: }
1092:
1093: sub excel_initialize {
1094: my ($r) = @_;
1095:
1096: &excel_cleanup();
1.115 matthew 1097: ($navmap,@sequences) =
1098: &Apache::lonstatistics::selected_sequences_with_assessments();
1099: if (! ref($navmap)) {
1100: # Unable to get data, so bail out
1101: $r->print("<h3>".
1102: &mt('Unable to retrieve course information.').
1103: '</h3>');
1104: }
1105: #
1.54 matthew 1106: my $total_columns = scalar(&get_student_fields_to_show());
1.90 matthew 1107: my $num_students = scalar(@Apache::lonstatistics::Students);
1108: #
1.115 matthew 1109: foreach my $seq (@sequences) {
1.88 matthew 1110: if ($chosen_output->{'every_problem'}) {
1.115 matthew 1111: $total_columns+=&count_parts($navmap,$seq);
1.88 matthew 1112: }
1.87 matthew 1113: # Add 2 because we need a 'sequence_sum' and 'total' column for each
1.88 matthew 1114: $total_columns += 2;
1.54 matthew 1115: }
1.105 matthew 1116: my $too_many_cols_error_message =
1117: '<h2>'.&mt('Unable to Complete Request').'</h2>'.$/.
1118: '<p>'.&mt('LON-CAPA is unable to produce your Excel spreadsheet because your selections will result in more than 255 columns. Excel allows only 255 columns in a spreadsheet.').'</p>'.$/.
1119: '<p>'.&mt('You may consider reducing the number of <b>Sequences or Folders</b> you have selected.').'</p>'.$/.
1120: '<p>'.&mt('LON-CAPA can produce <b>CSV</b> files of this data or Excel files of the <b>Scores Summary</b> data.').'</p>'.$/;
1.87 matthew 1121: if ($chosen_output->{'base'} eq 'tries' && $total_columns > 255) {
1.105 matthew 1122: $r->print($too_many_cols_error_message);
1123: $request_aborted = 1;
1.54 matthew 1124: }
1.87 matthew 1125: if ($chosen_output->{'base'} eq 'scores' && $total_columns > 255) {
1.105 matthew 1126: $r->print($too_many_cols_error_message);
1127: $request_aborted = 1;
1.54 matthew 1128: }
1129: return if ($request_aborted);
1130: #
1.32 matthew 1131: #
1132: $excel_workbook = undef;
1133: $excel_sheet = undef;
1134: #
1135: $rows_output = 0;
1136: $cols_output = 0;
1137: #
1.90 matthew 1138: # Determine rows
1139: my $header_row = $rows_output++;
1140: my $description_row = $rows_output++;
1.109 matthew 1141: my $notes_row = $rows_output++;
1.90 matthew 1142: $rows_output++; # blank row
1143: my $summary_header_row;
1144: if ($chosen_output->{'summary_table'}) {
1145: $summary_header_row = $rows_output++;
1.115 matthew 1146: $rows_output+= scalar(@sequences);
1.90 matthew 1147: $rows_output++;
1148: }
1149: my $sequence_name_row = $rows_output++;
1150: my $resource_name_row = $rows_output++;
1151: my $maximum_data_row = $rows_output++;
1152: if (! $chosen_output->{'maximum_row'}) {
1153: $rows_output--;
1154: }
1155: my $first_data_row = $rows_output++;
1156: #
1.32 matthew 1157: # Create sheet
1.117 matthew 1158: ($excel_workbook,$filename,$format)=
1159: &Apache::loncommon::create_workbook($r);
1160: return if (! defined($excel_workbook));
1.91 matthew 1161: #
1.32 matthew 1162: # Add a worksheet
1.121 albertel 1163: my $sheetname = $env{'course.'.$env{'request.course.id'}.'.description'};
1.67 matthew 1164: $sheetname = &Apache::loncommon::clean_excel_name($sheetname);
1.33 matthew 1165: $excel_sheet = $excel_workbook->addworksheet($sheetname);
1.85 matthew 1166: #
1.34 matthew 1167: # Put the course description in the header
1.90 matthew 1168: $excel_sheet->write($header_row,$cols_output++,
1.121 albertel 1169: $env{'course.'.$env{'request.course.id'}.'.description'},
1.85 matthew 1170: $format->{'h1'});
1.34 matthew 1171: $cols_output += 3;
1172: #
1173: # Put a description of the sections listed
1174: my $sectionstring = '';
1.119 matthew 1175: my @Sections = &Apache::lonstatistics::get_selected_sections();
1.120 matthew 1176: $excel_sheet->write($header_row,$cols_output++,
1.124 matthew 1177: &Apache::lonstatistics::section_and_enrollment_description('plaintext'),
1.85 matthew 1178: $format->{'h3'});
1.34 matthew 1179: #
1180: # Put the date in there too
1.90 matthew 1181: $excel_sheet->write($header_row,$cols_output++,
1.150.2.4 raeburn 1182: &mt('Compiled on [_1]',&Apache::lonlocal::locallocaltime(time)),$format->{'h3'});
1.34 matthew 1183: #
1.54 matthew 1184: $cols_output = 0;
1.90 matthew 1185: $excel_sheet->write($description_row,$cols_output++,
1.150.2.4 raeburn 1186: &mt($chosen_output->{'shortdesc'}),
1.109 matthew 1187: $format->{'b'});
1188: #
1189: $cols_output = 0;
1190: $excel_sheet->write($notes_row,$cols_output++,
1191: $chosen_output->{'non_html_notes'},
1192: $format->{'i'});
1193:
1.90 matthew 1194: ##############################################
1195: # Output headings for the raw data
1196: ##############################################
1.86 matthew 1197: #
1.32 matthew 1198: # Add the student headers
1.34 matthew 1199: $cols_output = 0;
1.32 matthew 1200: foreach my $field (&get_student_fields_to_show()) {
1.86 matthew 1201: $excel_sheet->write($resource_name_row,$cols_output++,$field,
1.85 matthew 1202: $format->{'bold'});
1.32 matthew 1203: }
1204: #
1.54 matthew 1205: # Add the remaining column headers
1.76 matthew 1206: my $total_formula_string = '=0';
1.101 matthew 1207: my $maximum_formula_string = '=0';
1.115 matthew 1208: foreach my $seq (@sequences) {
1209: my $symb = $seq->symb;
1.86 matthew 1210: $excel_sheet->write($sequence_name_row,,
1.115 matthew 1211: $cols_output,$seq->compTitle,$format->{'bold'});
1.86 matthew 1212: # Determine starting cell
1.115 matthew 1213: $formula_data{$symb}->{'Excel:startcell'}=
1.86 matthew 1214: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1.90 matthew 1215: ($first_data_row,$cols_output);
1.115 matthew 1216: $formula_data{$symb}->{'Excel:startcol'}=$cols_output;
1.87 matthew 1217: my $count = 0;
1218: if ($chosen_output->{'every_problem'}) {
1.76 matthew 1219: # Put the names of the problems and parts into the sheet
1.115 matthew 1220: foreach my $res (&get_resources($navmap,$seq)) {
1221: if (scalar(@{$res->parts}) > 1) {
1222: foreach my $part (@{$res->parts}) {
1.86 matthew 1223: $excel_sheet->write($resource_name_row,
1.54 matthew 1224: $cols_output++,
1.115 matthew 1225: $res->compTitle.' part '.$res->part_display($part),
1.85 matthew 1226: $format->{'bold'});
1.106 matthew 1227: $count++;
1.54 matthew 1228: }
1229: } else {
1.86 matthew 1230: $excel_sheet->write($resource_name_row,
1.54 matthew 1231: $cols_output++,
1.115 matthew 1232: $res->compTitle,$format->{'bold'});
1.106 matthew 1233: $count++;
1.54 matthew 1234: }
1235: }
1.79 matthew 1236: }
1.87 matthew 1237: # Determine ending cell
1238: if ($count <= 1) {
1.115 matthew 1239: $formula_data{$symb}->{'Excel:endcell'} = $formula_data{$symb}->{'Excel:startcell'};
1240: $formula_data{$symb}->{'Excel:endcol'} = $formula_data{$symb}->{'Excel:startcol'};
1.87 matthew 1241: } else {
1.115 matthew 1242: $formula_data{$symb}->{'Excel:endcell'} =
1.87 matthew 1243: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1.90 matthew 1244: ($first_data_row,$cols_output-1);
1.115 matthew 1245: $formula_data{$symb}->{'Excel:endcol'} = $cols_output-1;
1.87 matthew 1246: }
1247: # Create the formula for summing up this sequence
1.115 matthew 1248: if (! exists($formula_data{$symb}->{'Excel:endcell'}) ||
1249: ! defined($formula_data{$symb}->{'Excel:endcell'})) {
1250: $formula_data{$symb}->{'Excel:endcell'} = $formula_data{$symb}->{'Excel:startcell'};
1251: }
1.128 bowersj2 1252:
1.127 bowersj2 1253: my $start = $formula_data{$symb}->{'Excel:startcell'};
1254: my $end = $formula_data{$symb}->{'Excel:endcell'};
1.115 matthew 1255: $formula_data{$symb}->{'Excel:sum'}= $excel_sheet->store_formula
1.127 bowersj2 1256: ("=IF(COUNT($start\:$end),SUM($start\:$end),\"\")");
1.79 matthew 1257: # Determine cell the score is held in
1.115 matthew 1258: $formula_data{$symb}->{'Excel:scorecell'} =
1.79 matthew 1259: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1.90 matthew 1260: ($first_data_row,$cols_output);
1.115 matthew 1261: $formula_data{$symb}->{'Excel:scorecol'}=$cols_output;
1.87 matthew 1262: if ($chosen_output->{'base'} eq 'parts correct total') {
1.86 matthew 1263: $excel_sheet->write($resource_name_row,$cols_output++,
1.150.2.4 raeburn 1264: &mt('parts correct'),
1.85 matthew 1265: $format->{'bold'});
1.87 matthew 1266: } elsif ($chosen_output->{'sequence_sum'}) {
1267: if ($chosen_output->{'correct'}) {
1268: # Only reporting the number correct, so do not call it score
1269: $excel_sheet->write($resource_name_row,$cols_output++,
1.150.2.4 raeburn 1270: &mt('sum'),
1.87 matthew 1271: $format->{'bold'});
1272: } else {
1273: $excel_sheet->write($resource_name_row,$cols_output++,
1.150.2.4 raeburn 1274: &mt('score'),
1.87 matthew 1275: $format->{'bold'});
1276: }
1.32 matthew 1277: }
1.79 matthew 1278: #
1279: $total_formula_string.='+'.
1280: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1.90 matthew 1281: ($first_data_row,$cols_output-1);
1.87 matthew 1282: if ($chosen_output->{'sequence_max'}) {
1.101 matthew 1283: $excel_sheet->write($resource_name_row,$cols_output,
1.150.2.4 raeburn 1284: &mt('maximum'),
1.87 matthew 1285: $format->{'bold'});
1.115 matthew 1286: $formula_data{$symb}->{'Excel:maxcell'} =
1.101 matthew 1287: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1288: ($first_data_row,$cols_output);
1.115 matthew 1289: $formula_data{$symb}->{'Excel:maxcol'}=$cols_output;
1.101 matthew 1290: $maximum_formula_string.='+'.
1291: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1292: ($first_data_row,$cols_output);
1293: $cols_output++;
1294:
1.87 matthew 1295: }
1296: }
1297: if ($chosen_output->{'grand_total'}) {
1.150.2.4 raeburn 1298: $excel_sheet->write($resource_name_row,$cols_output++,&mt('Total'),
1.85 matthew 1299: $format->{'bold'});
1.32 matthew 1300: }
1.101 matthew 1301: if ($chosen_output->{'grand_maximum'}) {
1.150.2.4 raeburn 1302: $excel_sheet->write($resource_name_row,$cols_output++,&mt('Max. Total'),
1.101 matthew 1303: $format->{'bold'});
1304: }
1.76 matthew 1305: $total_formula = $excel_sheet->store_formula($total_formula_string);
1.101 matthew 1306: $maximum_formula = $excel_sheet->store_formula($maximum_formula_string);
1.90 matthew 1307: ##############################################
1.87 matthew 1308: # Output a row for MAX, if appropriate
1.90 matthew 1309: ##############################################
1310: if ($chosen_output->{'maximum_row'}) {
1.87 matthew 1311: $cols_output = 0;
1312: foreach my $field (&get_student_fields_to_show()) {
1313: if ($field eq 'username' || $field eq 'fullname' ||
1314: $field eq 'id') {
1315: $excel_sheet->write($maximum_data_row,$cols_output++,'Maximum',
1316: $format->{'bold'});
1317: } else {
1318: $excel_sheet->write($maximum_data_row,$cols_output++,'');
1319: }
1.54 matthew 1320: }
1.87 matthew 1321: #
1322: # Add the maximums for each sequence or assessment
1323: my %total_cell_translation;
1.101 matthew 1324: my %maximum_cell_translation;
1.115 matthew 1325: foreach my $seq (@sequences) {
1326: my $symb = $seq->symb;
1327: $cols_output=$formula_data{$symb}->{'Excel:startcol'};
1328: $total_cell_translation{$formula_data{$symb}->{'Excel:scorecell'}}=
1.87 matthew 1329: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1.115 matthew 1330: ($maximum_data_row,$formula_data{$symb}->{'Excel:scorecol'});
1331: $maximum_cell_translation{$formula_data{$symb}->{'Excel:maxcell'}}=
1.101 matthew 1332: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1.115 matthew 1333: ($maximum_data_row,$formula_data{$symb}->{'Excel:maxcol'});
1.87 matthew 1334: my $weight;
1335: my $max = 0;
1.115 matthew 1336: foreach my $resource (&get_resources($navmap,$seq)) {
1337: foreach my $part (@{$resource->parts}){
1.87 matthew 1338: $weight = 1;
1339: if ($chosen_output->{'scores'}) {
1340: $weight = &Apache::lonnet::EXT
1.128 bowersj2 1341: ('resource.'.$part.'.weight',$resource->symb,
1.87 matthew 1342: undef,undef,undef);
1343: if (!defined($weight) || ($weight eq '')) {
1344: $weight=1;
1345: }
1346: }
1347: if ($chosen_output->{'scores'} &&
1348: $chosen_output->{'every_problem'}) {
1349: $excel_sheet->write($maximum_data_row,$cols_output++,
1350: $weight);
1.54 matthew 1351: }
1.87 matthew 1352: $max += $weight;
1.54 matthew 1353: }
1.87 matthew 1354: }
1355: #
1356: if ($chosen_output->{'sequence_sum'} &&
1357: $chosen_output->{'every_problem'}) {
1.110 albertel 1358: my %replaceCells=
1.115 matthew 1359: ('^'.$formula_data{$symb}->{'Excel:startcell'}.':'.
1360: $formula_data{$symb}->{'Excel:endcell'}.'$' =>
1361: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell($maximum_data_row,$formula_data{$symb}->{'Excel:startcol'}).':'.
1362: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell($maximum_data_row,$formula_data{$symb}->{'Excel:endcol'}));
1.87 matthew 1363: $excel_sheet->repeat_formula($maximum_data_row,$cols_output++,
1.115 matthew 1364: $formula_data{$symb}->{'Excel:sum'},undef,
1.127 bowersj2 1365: %replaceCells, %replaceCells);
1.110 albertel 1366:
1.87 matthew 1367: } elsif ($chosen_output->{'sequence_sum'}) {
1368: $excel_sheet->write($maximum_data_row,$cols_output++,$max);
1369: }
1370: if ($chosen_output->{'sequence_max'}) {
1371: $excel_sheet->write($maximum_data_row,$cols_output++,$max);
1.45 matthew 1372: }
1.87 matthew 1373: #
1.45 matthew 1374: }
1.87 matthew 1375: if ($chosen_output->{'grand_total'}) {
1.86 matthew 1376: $excel_sheet->repeat_formula($maximum_data_row,$cols_output++,
1.87 matthew 1377: $total_formula,undef,
1378: %total_cell_translation);
1.79 matthew 1379: }
1.101 matthew 1380: if ($chosen_output->{'grand_maximum'}) {
1381: $excel_sheet->repeat_formula($maximum_data_row,$cols_output++,
1382: $maximum_formula,undef,
1.107 matthew 1383: %maximum_cell_translation);
1.101 matthew 1384: }
1.90 matthew 1385: } # End of MAXIMUM row output if ($chosen_output->{'maximum_row'}) {
1.86 matthew 1386: $rows_output = $first_data_row;
1.90 matthew 1387: ##############################################
1388: # Output summary table, which actually is above the sequence name row.
1389: ##############################################
1390: if ($chosen_output->{'summary_table'}) {
1391: $cols_output = 0;
1392: $excel_sheet->write($summary_header_row,$cols_output++,
1.150.2.4 raeburn 1393: &mt('Summary Table'),$format->{'bold'});
1.90 matthew 1394: if ($chosen_output->{'maximum_row'}) {
1395: $excel_sheet->write($summary_header_row,$cols_output++,
1.150.2.4 raeburn 1396: &mt('Maximum'),$format->{'bold'});
1.90 matthew 1397: }
1398: $excel_sheet->write($summary_header_row,$cols_output++,
1.150.2.4 raeburn 1399: &mt('Average'),$format->{'bold'});
1.90 matthew 1400: $excel_sheet->write($summary_header_row,$cols_output++,
1.150.2.4 raeburn 1401: &mt('Median'),$format->{'bold'});
1.90 matthew 1402: $excel_sheet->write($summary_header_row,$cols_output++,
1.150.2.4 raeburn 1403: &mt('Std Dev'),$format->{'bold'});
1.90 matthew 1404: my $row = $summary_header_row+1;
1.115 matthew 1405: foreach my $seq (@sequences) {
1406: my $symb = $seq->symb;
1.90 matthew 1407: $cols_output = 0;
1408: $excel_sheet->write($row,$cols_output++,
1.115 matthew 1409: $seq->compTitle,
1.90 matthew 1410: $format->{'bold'});
1411: if ($chosen_output->{'maximum_row'}) {
1412: $excel_sheet->write
1413: ($row,$cols_output++,
1414: '='.
1415: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1.115 matthew 1416: ($maximum_data_row,$formula_data{$symb}->{'Excel:scorecol'})
1.90 matthew 1417: );
1418: }
1419: my $range =
1420: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1.115 matthew 1421: ($first_data_row,$formula_data{$symb}->{'Excel:scorecol'}).
1.90 matthew 1422: ':'.
1423: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1.115 matthew 1424: ($first_data_row+$num_students-1,$formula_data{$symb}->{'Excel:scorecol'});
1.90 matthew 1425: $excel_sheet->write($row,$cols_output++,
1426: '=AVERAGE('.$range.')');
1427: $excel_sheet->write($row,$cols_output++,
1428: '=MEDIAN('.$range.')');
1429: $excel_sheet->write($row,$cols_output++,
1430: '=STDEV('.$range.')');
1431: $row++;
1432: }
1433: }
1434: ##############################################
1435: # Take care of non-excel initialization
1436: ##############################################
1.32 matthew 1437: #
1438: # Let the user know what we are doing
1439: my $studentcount = scalar(@Apache::lonstatistics::Students);
1.121 albertel 1440: if ($env{'form.SelectedStudent'}) {
1.85 matthew 1441: $studentcount = '1';
1442: }
1.150.2.2 raeburn 1443: $r->print('<p>'
1444: .&mt('Compiling Excel spreadsheet for [quant,_1,student]...',$studentcount)
1445: ."</p>\n"
1446: );
1.32 matthew 1447: $r->rflush();
1.31 matthew 1448: #
1.36 matthew 1449: # Initialize progress window
1450: %prog_state=&Apache::lonhtmlcommon::Create_PrgWin
1451: ($r,'Excel File Compilation Status',
1.108 matthew 1452: 'Excel File Compilation Progress', $studentcount,
1453: 'inline',undef,'Statistics','stats_status');
1.36 matthew 1454: #
1.62 matthew 1455: &Apache::lonhtmlcommon::Update_PrgWin($r,\%prog_state,
1456: 'Processing first student');
1.31 matthew 1457: return;
1458: }
1459:
1460: sub excel_outputstudent {
1461: my ($r,$student) = @_;
1.115 matthew 1462: if ($request_aborted || ! defined($navmap) || ! defined($excel_sheet)) {
1463: return;
1464: }
1.32 matthew 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) {
1.103 matthew 1470: my $value = $student->{$field};
1471: if ($field eq 'comments') {
1.136 albertel 1472: $value = &Apache::lonmsgdisplay::retrieve_instructor_comments
1.103 matthew 1473: ($student->{'username'},$student->{'domain'});
1474: }
1475: $excel_sheet->write($rows_output,$cols_output++,$value);
1.32 matthew 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,
1.121 albertel 1483: $env{'request.course.id'});
1.32 matthew 1484: if ((scalar @tmp > 0) && ($tmp[0] !~ /^error:/)) {
1485: %StudentsData = @tmp;
1486: }
1487: #
1488: # Write out sequence scores and totals data
1.76 matthew 1489: my %total_cell_translation;
1.101 matthew 1490: my %maximum_cell_translation;
1.115 matthew 1491: foreach my $seq (@sequences) {
1492: my $symb = $seq->symb;
1493: $cols_output = $formula_data{$symb}->{'Excel:startcol'};
1.76 matthew 1494: # Keep track of cells to translate in total cell
1.115 matthew 1495: $total_cell_translation{$formula_data{$symb}->{'Excel:scorecell'}} =
1.76 matthew 1496: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1.115 matthew 1497: ($rows_output,$formula_data{$symb}->{'Excel:scorecol'});
1.107 matthew 1498: # and maximum cell
1.115 matthew 1499: $maximum_cell_translation{$formula_data{$symb}->{'Excel:maxcell'}} =
1.107 matthew 1500: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1.115 matthew 1501: ($rows_output,$formula_data{$symb}->{'Excel:maxcol'});
1.76 matthew 1502: #
1.54 matthew 1503: my ($performance,$performance_length,$score,$seq_max,$rawdata);
1.87 matthew 1504: if ($chosen_output->{'tries'} || $chosen_output->{'correct'}){
1.54 matthew 1505: ($performance,$performance_length,$score,$seq_max,$rawdata) =
1.115 matthew 1506: &student_tries_on_sequence($student,\%StudentsData,
1507: $navmap,$seq,'no');
1.54 matthew 1508: } else {
1509: ($performance,$performance_length,$score,$seq_max,$rawdata) =
1.115 matthew 1510: &student_performance_on_sequence($student,\%StudentsData,
1.129 bowersj2 1511: $navmap,$seq,'no',
1512: $chosen_output->{ignore_weight});
1.87 matthew 1513: }
1514: if ($chosen_output->{'every_problem'}) {
1515: if ($chosen_output->{'correct'}) {
1516: # only indiciate if each item is correct or not
1517: foreach my $value (@$rawdata) {
1.126 bowersj2 1518: # positive means correct, 0 or negative means
1519: # incorrect
1520: $value = $value > 0 ? 1 : 0;
1.87 matthew 1521: $excel_sheet->write($rows_output,$cols_output++,$value);
1522: }
1523: } else {
1524: foreach my $value (@$rawdata) {
1.97 matthew 1525: if ($score eq ' ' || !defined($value)) {
1526: $cols_output++;
1527: } else {
1528: $excel_sheet->write($rows_output,$cols_output++,
1529: $value);
1530: }
1.87 matthew 1531: }
1532: }
1.54 matthew 1533: }
1.87 matthew 1534: if ($chosen_output->{'sequence_sum'} &&
1535: $chosen_output->{'every_problem'}) {
1.76 matthew 1536: # Write a formula for the sum of this sequence
1.110 albertel 1537: my %replaceCells=
1.115 matthew 1538: ('^'.$formula_data{$symb}->{'Excel:startcell'}.':'.$formula_data{$symb}->{'Excel:endcell'}.'$'
1.110 albertel 1539: =>
1.115 matthew 1540: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell($rows_output,$formula_data{$symb}->{'Excel:startcol'}).':'.
1541: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell($rows_output,$formula_data{$symb}->{'Excel:endcol'})
1.110 albertel 1542: );
1543: # The undef is for the format
1544: $excel_sheet->repeat_formula($rows_output,$cols_output++,
1.115 matthew 1545: $formula_data{$symb}->{'Excel:sum'},undef,
1.127 bowersj2 1546: %replaceCells, %replaceCells);
1.87 matthew 1547: } elsif ($chosen_output->{'sequence_sum'}) {
1.97 matthew 1548: if ($score eq ' ') {
1549: $cols_output++;
1550: } else {
1551: $excel_sheet->write($rows_output,$cols_output++,$score);
1552: }
1.32 matthew 1553: }
1.87 matthew 1554: if ($chosen_output->{'sequence_max'}) {
1.32 matthew 1555: $excel_sheet->write($rows_output,$cols_output++,$seq_max);
1556: }
1557: }
1.76 matthew 1558: #
1.87 matthew 1559: if ($chosen_output->{'grand_total'}) {
1560: $excel_sheet->repeat_formula($rows_output,$cols_output++,
1561: $total_formula,undef,
1562: %total_cell_translation);
1563: }
1.101 matthew 1564: if ($chosen_output->{'grand_maximum'}) {
1565: $excel_sheet->repeat_formula($rows_output,$cols_output++,
1566: $maximum_formula,undef,
1.107 matthew 1567: %maximum_cell_translation);
1.101 matthew 1568: }
1.32 matthew 1569: #
1570: # Bookkeeping
1571: $rows_output++;
1572: $cols_output=0;
1573: #
1.36 matthew 1574: # Update the progress window
1575: &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,'last student');
1.32 matthew 1576: return;
1.31 matthew 1577: }
1578:
1579: sub excel_finish {
1580: my ($r) = @_;
1.115 matthew 1581: if ($request_aborted || ! defined($navmap) || ! defined($excel_sheet)) {
1.125 albertel 1582: &excel_cleanup();
1.115 matthew 1583: return;
1584: }
1.32 matthew 1585: #
1586: # Write the excel file
1587: $excel_workbook->close();
1588: #
1.36 matthew 1589: # Close the progress window
1590: &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
1591: #
1.32 matthew 1592: # Tell the user where to get their excel file
1.36 matthew 1593: $r->print('<br />'.
1.150.2.2 raeburn 1594: '<a href="'.$filename.'">'.&mt('Your Excel spreadsheet').'</a>'."\n");
1.32 matthew 1595: $r->rflush();
1.125 albertel 1596: &excel_cleanup();
1.32 matthew 1597: return;
1.31 matthew 1598: }
1599:
1600: }
1.30 matthew 1601: #######################################################
1602: #######################################################
1603:
1604: =pod
1605:
1.31 matthew 1606: =head2 CSV output routines
1607:
1608: =item &csv_initialize($r)
1609:
1610: =item &csv_outputstudent($r,$student)
1611:
1612: =item &csv_finish($r)
1.30 matthew 1613:
1614: =cut
1615:
1616: #######################################################
1617: #######################################################
1.31 matthew 1618: {
1619:
1.37 matthew 1620: my $outputfile;
1621: my $filename;
1.54 matthew 1622: my $request_aborted;
1.37 matthew 1623: my %prog_state; # progress window state
1.115 matthew 1624: my $navmap;
1625: my @sequences;
1.37 matthew 1626:
1.125 albertel 1627: sub csv_cleanup {
1.66 matthew 1628: undef($outputfile);
1629: undef($filename);
1630: undef($request_aborted);
1.37 matthew 1631: undef(%prog_state);
1632: #
1.115 matthew 1633: undef($navmap);
1634: undef(@sequences);
1.125 albertel 1635: }
1636:
1637: sub csv_initialize{
1638: my ($r) = @_;
1639:
1640: &csv_cleanup();
1.115 matthew 1641: ($navmap,@sequences) =
1642: &Apache::lonstatistics::selected_sequences_with_assessments();
1643: if (! ref($navmap)) {
1644: # Unable to get data, so bail out
1645: $r->print("<h3>".
1646: &mt('Unable to retrieve course information.').
1647: '</h3>');
1648: }
1649: #
1.54 matthew 1650: # Deal with unimplemented requests
1651: $request_aborted = undef;
1.87 matthew 1652: if ($chosen_output->{'base'} =~ /final table/) {
1.54 matthew 1653: $r->print(<<END);
1654: <h2>Unable to Complete Request</h2>
1655: <p>
1656: The <b>Summary Table (Scores)</b> option is not available for non-HTML output.
1657: </p>
1658: END
1659: $request_aborted = 1;
1660: }
1661: return if ($request_aborted);
1.87 matthew 1662: #
1663: # Initialize progress window
1664: my $studentcount = scalar(@Apache::lonstatistics::Students);
1665: %prog_state=&Apache::lonhtmlcommon::Create_PrgWin
1666: ($r,'CSV File Compilation Status',
1.108 matthew 1667: 'CSV File Compilation Progress', $studentcount,
1668: 'inline',undef,'Statistics','stats_status');
1.54 matthew 1669: #
1.37 matthew 1670: # Open a file
1.120 matthew 1671: ($outputfile,$filename) = &Apache::loncommon::create_text_file($r,'csv');
1672: if (! defined($outputfile)) { return ''; }
1.38 matthew 1673: #
1674: # Datestamp
1.121 albertel 1675: my $description = $env{'course.'.$env{'request.course.id'}.'.description'};
1.38 matthew 1676: print $outputfile '"'.&Apache::loncommon::csv_translate($description).'",'.
1.150.2.5! raeburn 1677: '"'.&Apache::loncommon::csv_translate(scalar(&Apache::lonlocal::locallocaltime(time))).'"'.
1.38 matthew 1678: "\n";
1.120 matthew 1679: print $outputfile '"'.
1680: &Apache::loncommon::csv_translate
1681: (&Apache::lonstatistics::section_and_enrollment_description()).
1682: '"'."\n";
1.109 matthew 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: }
1.37 matthew 1689: #
1690: # Print out the headings
1.87 matthew 1691: my $sequence_row = '';
1692: my $resource_row = undef;
1.37 matthew 1693: foreach my $field (&get_student_fields_to_show()) {
1.87 matthew 1694: $sequence_row .='"",';
1695: $resource_row .= '"'.&Apache::loncommon::csv_translate($field).'",';
1.37 matthew 1696: }
1.115 matthew 1697: foreach my $seq (@sequences) {
1.87 matthew 1698: $sequence_row .= '"'.
1.115 matthew 1699: &Apache::loncommon::csv_translate($seq->compTitle).'",';
1.87 matthew 1700: my $count = 0;
1701: if ($chosen_output->{'every_problem'}) {
1.116 matthew 1702: foreach my $res (&get_resources($navmap,$seq)) {
1.115 matthew 1703: if (scalar(@{$res->parts}) < 1) {
1.87 matthew 1704: next;
1705: }
1.115 matthew 1706: foreach my $part (@{$res->parts}) {
1.87 matthew 1707: $resource_row .= '"'.
1.115 matthew 1708: &Apache::loncommon::csv_translate
1709: ($res->compTitle.', Part '.$res->part_display($part)).'",';
1.87 matthew 1710: $count++;
1.53 matthew 1711: }
1712: }
1.37 matthew 1713: }
1.87 matthew 1714: $sequence_row.='"",'x$count;
1715: if ($chosen_output->{'sequence_sum'}) {
1716: if($chosen_output->{'correct'}) {
1.150.2.4 raeburn 1717: $resource_row .= '"'.&mt('sum').'",';
1.87 matthew 1718: } else {
1.150.2.4 raeburn 1719: $resource_row .= '"'.&mt('score').'",';
1.87 matthew 1720: }
1721: }
1722: if ($chosen_output->{'sequence_max'}) {
1723: $sequence_row.= '"",';
1.150.2.4 raeburn 1724: $resource_row .= '"'.&mt('maximum possible').'",';
1.87 matthew 1725: }
1.37 matthew 1726: }
1.87 matthew 1727: if ($chosen_output->{'grand_total'}) {
1728: $sequence_row.= '"",';
1.150.2.4 raeburn 1729: $resource_row.= '"'.&mt('Total').'",';
1.87 matthew 1730: }
1.101 matthew 1731: if ($chosen_output->{'grand_maximum'}) {
1732: $sequence_row.= '"",';
1.150.2.4 raeburn 1733: $resource_row.= '"'.&mt('Maximum').'",';
1.101 matthew 1734: }
1.87 matthew 1735: chomp($sequence_row);
1736: chomp($resource_row);
1737: print $outputfile $sequence_row."\n";
1738: print $outputfile $resource_row."\n";
1.31 matthew 1739: return;
1740: }
1741:
1742: sub csv_outputstudent {
1743: my ($r,$student) = @_;
1.115 matthew 1744: if ($request_aborted || ! defined($navmap) || ! defined($outputfile)) {
1745: return;
1746: }
1.37 matthew 1747: my $Str = '';
1748: #
1749: # Output student fields
1750: my @to_show = &get_student_fields_to_show();
1751: foreach my $field (@to_show) {
1.103 matthew 1752: my $value = $student->{$field};
1753: if ($field eq 'comments') {
1.136 albertel 1754: $value = &Apache::lonmsgdisplay::retrieve_instructor_comments
1.103 matthew 1755: ($student->{'username'},$student->{'domain'});
1756: }
1757: $Str .= '"'.&Apache::loncommon::csv_translate($value).'",';
1.37 matthew 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,
1.121 albertel 1765: $env{'request.course.id'});
1.37 matthew 1766: if ((scalar @tmp > 0) && ($tmp[0] !~ /^error:/)) {
1767: %StudentsData = @tmp;
1768: }
1769: #
1770: # Output performance data
1.87 matthew 1771: my $total = 0;
1.101 matthew 1772: my $maximum = 0;
1.115 matthew 1773: foreach my $seq (@sequences) {
1.54 matthew 1774: my ($performance,$performance_length,$score,$seq_max,$rawdata);
1.87 matthew 1775: if ($chosen_output->{'tries'}){
1.54 matthew 1776: ($performance,$performance_length,$score,$seq_max,$rawdata) =
1.115 matthew 1777: &student_tries_on_sequence($student,\%StudentsData,
1778: $navmap,$seq,'no');
1.54 matthew 1779: } else {
1780: ($performance,$performance_length,$score,$seq_max,$rawdata) =
1.115 matthew 1781: &student_performance_on_sequence($student,\%StudentsData,
1.129 bowersj2 1782: $navmap,$seq,'no',
1783: $chosen_output->{ignore_weight});
1.54 matthew 1784: }
1.87 matthew 1785: if ($chosen_output->{'every_problem'}) {
1786: if ($chosen_output->{'correct'}) {
1787: $score = 0;
1788: # Deal with number of parts correct data
1789: $Str .= '"'.join('","',( map { if ($_>0) {
1790: $score += 1;
1791: 1;
1792: } else {
1793: 0;
1794: }
1795: } @$rawdata)).'",';
1796: } else {
1797: $Str .= '"'.join('","',(@$rawdata)).'",';
1798: }
1799: }
1800: if ($chosen_output->{'sequence_sum'}) {
1.37 matthew 1801: $Str .= '"'.$score.'",';
1.87 matthew 1802: }
1803: if ($chosen_output->{'sequence_max'}) {
1804: $Str .= '"'.$seq_max.'",';
1.37 matthew 1805: }
1.87 matthew 1806: $total+=$score;
1.101 matthew 1807: $maximum += $seq_max;
1.87 matthew 1808: }
1809: if ($chosen_output->{'grand_total'}) {
1810: $Str .= '"'.$total.'",';
1.101 matthew 1811: }
1812: if ($chosen_output->{'grand_maximum'}) {
1813: $Str .= '"'.$maximum.'",';
1.37 matthew 1814: }
1815: chop($Str);
1816: $Str .= "\n";
1817: print $outputfile $Str;
1818: #
1819: # Update the progress window
1820: &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,'last student');
1821: return;
1.31 matthew 1822: }
1823:
1824: sub csv_finish {
1825: my ($r) = @_;
1.115 matthew 1826: if ($request_aborted || ! defined($navmap) || ! defined($outputfile)) {
1.125 albertel 1827: &csv_cleanup();
1.115 matthew 1828: return;
1829: }
1.37 matthew 1830: close($outputfile);
1831: #
1832: # Close the progress window
1833: &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
1834: #
1835: # Tell the user where to get their csv file
1836: $r->print('<br />'.
1.147 bisitz 1837: '<a href="'.$filename.'">'.&mt('Your CSV file.').'</a>'."\n");
1.37 matthew 1838: $r->rflush();
1.125 albertel 1839: &csv_cleanup();
1.37 matthew 1840: return;
1841:
1.31 matthew 1842: }
1.2 stredwic 1843:
1844: }
1845:
1.132 bowersj2 1846: # This function will return an HTML string including a star, with
1847: # a mouseover popup showing the "real" value. An optional second
1848: # argument lets you show something other than a star.
1849: sub show_star {
1850: my $popup = shift;
1851: my $symbol = shift || '*';
1852: # Escape the popup for JS.
1853: $popup =~ s/([^-a-zA-Z0-9:;,._ ()|!\/?=&*])/'\\' . sprintf("%lo", ord($1))/ge;
1854:
1.142 albertel 1855: return "<span class=\"LC_chrt_popup_exists\" onmouseover='popup_score(this, \"$popup\");return false;' onmouseout='popdown_score();return false;'>$symbol</span>";
1.132 bowersj2 1856: }
1857:
1.28 matthew 1858: #######################################################
1859: #######################################################
1860:
1.2 stredwic 1861: =pod
1862:
1.54 matthew 1863: =item &StudentTriesOnSequence()
1.2 stredwic 1864:
1.30 matthew 1865: Inputs:
1.2 stredwic 1866:
1867: =over 4
1868:
1.30 matthew 1869: =item $student
1.28 matthew 1870:
1.30 matthew 1871: =item $studentdata Hash ref to all student data
1.2 stredwic 1872:
1.30 matthew 1873: =item $seq Hash ref, the sequence we are working on
1.2 stredwic 1874:
1.30 matthew 1875: =item $links if defined we will output links to each resource.
1.2 stredwic 1876:
1.28 matthew 1877: =back
1.2 stredwic 1878:
1879: =cut
1.1 stredwic 1880:
1.28 matthew 1881: #######################################################
1882: #######################################################
1.112 matthew 1883: sub student_tries_on_sequence {
1884: my ($student,$studentdata,$navmap,$seq,$links) = @_;
1.31 matthew 1885: $links = 'no' if (! defined($links));
1.1 stredwic 1886: my $Str = '';
1.30 matthew 1887: my ($sum,$max) = (0,0);
1.51 matthew 1888: my $performance_length = 0;
1.54 matthew 1889: my @TriesData = ();
1890: my $tries;
1.97 matthew 1891: my $hasdata = 0; # flag - true if the student has any data on the sequence
1.115 matthew 1892: foreach my $resource (&get_resources($navmap,$seq)) {
1.112 matthew 1893: my $resource_data = $studentdata->{$resource->symb};
1.30 matthew 1894: my $value = '';
1.112 matthew 1895: foreach my $partnum (@{$resource->parts()}) {
1.54 matthew 1896: $tries = undef;
1.30 matthew 1897: $max++;
1.51 matthew 1898: $performance_length++;
1.30 matthew 1899: my $symbol = ' '; # default to space
1900: #
1.78 matthew 1901: my $awarded = 0;
1902: if (exists($resource_data->{'resource.'.$partnum.'.awarded'})) {
1903: $awarded = $resource_data->{'resource.'.$partnum.'.awarded'};
1904: $awarded = 0 if (! $awarded);
1905: }
1906: #
1907: my $status = '';
1.30 matthew 1908: if (exists($resource_data->{'resource.'.$partnum.'.solved'})) {
1.78 matthew 1909: $status = $resource_data->{'resource.'.$partnum.'.solved'};
1910: }
1911: #
1912: my $tries = 0;
1913: if(exists($resource_data->{'resource.'.$partnum.'.tries'})) {
1914: $tries = $resource_data->{'resource.'.$partnum.'.tries'};
1.97 matthew 1915: $hasdata =1;
1.78 matthew 1916: }
1917: #
1918: if ($awarded > 0) {
1919: # The student has gotten the problem correct to some degree
1920: if ($status eq 'excused') {
1921: $symbol = 'x';
1922: $max--;
1.137 albertel 1923: } elsif ($status eq 'correct_by_override' && !$resource->is_task()) {
1.30 matthew 1924: $symbol = '+';
1925: $sum++;
1.78 matthew 1926: } elsif ($tries > 0) {
1.54 matthew 1927: if ($tries > 9) {
1.132 bowersj2 1928: $symbol = show_star($tries);
1.78 matthew 1929: } else {
1.54 matthew 1930: $symbol = $tries;
1.30 matthew 1931: }
1932: $sum++;
1933: } else {
1.78 matthew 1934: $symbol = '+';
1935: $sum++;
1.2 stredwic 1936: }
1.30 matthew 1937: } else {
1.78 matthew 1938: # The student has the problem incorrect or it is ungraded
1939: if ($status eq 'excused') {
1940: $symbol = 'x';
1941: $max--;
1942: } elsif ($status eq 'incorrect_by_override') {
1943: $symbol = '-';
1944: } elsif ($status eq 'ungraded_attempted') {
1.124 matthew 1945: $symbol = 'u';
1.78 matthew 1946: } elsif ($status eq 'incorrect_attempted' ||
1947: $tries > 0) {
1.30 matthew 1948: $symbol = '.';
1949: } else {
1.78 matthew 1950: # Problem is wrong and has not been attempted.
1951: $symbol=' ';
1.18 matthew 1952: }
1.2 stredwic 1953: }
1.54 matthew 1954: #
1.109 matthew 1955: if (! defined($tries)) {
1956: $tries = 0;
1957: }
1958: if ($status =~ /^(incorrect|ungraded)/) {
1959: # Bug 3390: show '-' for tries on incorrect problems
1960: # (csv & excel only)
1961: push(@TriesData,-$tries);
1962: } else {
1963: push (@TriesData,$tries);
1.54 matthew 1964: }
1.30 matthew 1965: #
1.47 matthew 1966: if ( ($links eq 'yes' && $symbol ne ' ') ||
1967: ($links eq 'all')) {
1.134 bowersj2 1968: my $link = '/adm/grades'.
1.148 raeburn 1969: '?symb='.&escape($resource->shown_symb).
1.30 matthew 1970: '&student='.$student->{'username'}.
1.64 albertel 1971: '&userdom='.$student->{'domain'}.
1.134 bowersj2 1972: '&command=submission';
1973: $symbol = &link($symbol, $link);
1.30 matthew 1974: }
1975: $value .= $symbol;
1.2 stredwic 1976: }
1.30 matthew 1977: $Str .= $value;
1.17 minaeibi 1978: }
1.112 matthew 1979: if ($seq->randompick()) {
1980: $max = $seq->randompick();
1.51 matthew 1981: }
1.97 matthew 1982: if (! $hasdata && $sum == 0) {
1983: $sum = ' ';
1984: }
1.54 matthew 1985: return ($Str,$performance_length,$sum,$max,\@TriesData);
1986: }
1987:
1.134 bowersj2 1988: =pod
1989:
1990: =item &link
1991:
1992: Inputs:
1993:
1994: =over 4
1995:
1996: =item $text
1997:
1998: =item $target
1999:
2000: =back
2001:
2002: Takes the text and creates a link to the $text that honors
2003: the value of 'new window' if clicked on, but uses a real
2004: 'href' so middle and right clicks still work.
2005:
2006: $target and $text are assumed to be already correctly escaped; i.e., it
2007: can be dumped out directly into the output stream as-is.
2008:
2009: =cut
2010:
2011: sub link {
2012: my ($text,$target) = @_;
2013: return
2014: "<a href='$target' onclick=\"t=this.href;if(new_window)"
2015: ."{window.open(t)}else{return void(window."
2016: ."location=t)};return false;\">$text</a>";
2017: }
2018:
1.54 matthew 2019: #######################################################
2020: #######################################################
2021:
2022: =pod
2023:
1.115 matthew 2024: =item &student_performance_on_sequence
1.54 matthew 2025:
2026: Inputs:
2027:
2028: =over 4
2029:
2030: =item $student
2031:
2032: =item $studentdata Hash ref to all student data
2033:
2034: =item $seq Hash ref, the sequence we are working on
2035:
2036: =item $links if defined we will output links to each resource.
2037:
2038: =back
2039:
2040: =cut
2041:
2042: #######################################################
2043: #######################################################
1.112 matthew 2044: sub student_performance_on_sequence {
1.129 bowersj2 2045: my ($student,$studentdata,$navmap,$seq,$links,$awarded_only) = @_;
1.54 matthew 2046: $links = 'no' if (! defined($links));
2047: my $Str = ''; # final result string
2048: my ($score,$max) = (0,0);
2049: my $performance_length = 0;
2050: my $symbol;
2051: my @ScoreData = ();
2052: my $partscore;
1.97 matthew 2053: my $hasdata = 0; # flag, 0 if there were no submissions on the sequence
1.115 matthew 2054: foreach my $resource (&get_resources($navmap,$seq)) {
1.112 matthew 2055: my $symb = $resource->symb;
2056: my $resource_data = $studentdata->{$symb};
2057: foreach my $part (@{$resource->parts()}) {
1.54 matthew 2058: $partscore = undef;
1.129 bowersj2 2059: my $weight;
2060: if (!$awarded_only){
2061: $weight = &Apache::lonnet::EXT('resource.'.$part.'.weight',
2062: $symb,
2063: $student->{'domain'},
2064: $student->{'username'},
2065: $student->{'section'});
2066: }
1.54 matthew 2067: if (!defined($weight) || ($weight eq '')) {
2068: $weight=1;
2069: }
2070: #
2071: $max += $weight; # see the 'excused' branch below...
2072: $performance_length++; # one character per part
2073: $symbol = ' '; # default to space
2074: #
1.97 matthew 2075: my $awarded;
1.54 matthew 2076: if (exists($resource_data->{'resource.'.$part.'.awarded'})) {
2077: $awarded = $resource_data->{'resource.'.$part.'.awarded'};
1.67 matthew 2078: $awarded = 0 if (! $awarded);
1.97 matthew 2079: $hasdata = 1;
1.54 matthew 2080: }
2081: #
1.131 albertel 2082: $partscore = &Apache::grades::compute_points($weight,$awarded);
1.97 matthew 2083: if (! defined($awarded)) {
2084: $partscore = undef;
2085: }
1.54 matthew 2086: $score += $partscore;
1.63 matthew 2087: $symbol = $partscore;
1.70 matthew 2088: if (abs($symbol - sprintf("%.0f",$symbol)) < 0.001) {
2089: $symbol = sprintf("%.0f",$symbol);
2090: }
1.54 matthew 2091: if (length($symbol) > 1) {
1.132 bowersj2 2092: $symbol = show_star($symbol);
1.54 matthew 2093: }
1.124 matthew 2094: if (exists($resource_data->{'resource.'.$part.'.solved'}) &&
2095: $resource_data->{'resource.'.$part.'.solved'} ne '') {
1.54 matthew 2096: my $status = $resource_data->{'resource.'.$part.'.solved'};
2097: if ($status eq 'excused') {
2098: $symbol = 'x';
2099: $max -= $weight; # Do not count 'excused' problems.
1.124 matthew 2100: } elsif ($status eq 'ungraded_attempted') {
2101: $symbol = 'u';
1.54 matthew 2102: }
1.97 matthew 2103: $hasdata = 1;
1.124 matthew 2104: } elsif ($resource_data->{'resource.'.$part.'.award'} eq 'DRAFT') {
2105: $symbol = 'd';
2106: $hasdata = 1;
1.111 matthew 2107: } elsif (!exists($resource_data->{'resource.'.$part.'.awarded'})){
1.54 matthew 2108: # Unsolved. Did they try?
2109: if (exists($resource_data->{'resource.'.$part.'.tries'})){
2110: $symbol = '.';
1.97 matthew 2111: $hasdata = 1;
1.54 matthew 2112: } else {
2113: $symbol = ' ';
2114: }
2115: }
2116: #
1.60 matthew 2117: if (! defined($partscore)) {
2118: $partscore = $symbol;
2119: }
2120: push (@ScoreData,$partscore);
2121: #
1.54 matthew 2122: if ( ($links eq 'yes' && $symbol ne ' ') || ($links eq 'all')) {
1.134 bowersj2 2123: my $link = '/adm/grades' .
1.148 raeburn 2124: '?symb='.&escape($resource->shown_symb).
1.54 matthew 2125: '&student='.$student->{'username'}.
1.64 albertel 2126: '&userdom='.$student->{'domain'}.
1.134 bowersj2 2127: '&command=submission';
2128: $symbol = &link($symbol, $link);
1.54 matthew 2129: }
1.60 matthew 2130: $Str .= $symbol;
1.54 matthew 2131: }
1.97 matthew 2132: }
2133: if (! $hasdata && $score == 0) {
2134: $score = ' ';
1.54 matthew 2135: }
2136: return ($Str,$performance_length,$score,$max,\@ScoreData);
1.1 stredwic 2137: }
1.23 minaeibi 2138:
1.28 matthew 2139: #######################################################
2140: #######################################################
1.23 minaeibi 2141:
1.2 stredwic 2142: =pod
2143:
2144: =item &CreateLegend()
2145:
2146: This function returns a formatted string containing the legend for the
2147: chart. The legend describes the symbols used to represent grades for
2148: problems.
2149:
2150: =cut
2151:
1.28 matthew 2152: #######################################################
2153: #######################################################
1.2 stredwic 2154: sub CreateLegend {
2155: my $Str = "<p><pre>".
1.124 matthew 2156: " digit score or number of tries to get correct ".
1.12 minaeibi 2157: " * correct by student in more than 9 tries\n".
1.20 minaeibi 2158: " + correct by hand grading or override\n".
1.12 minaeibi 2159: " - incorrect by override\n".
2160: " . incorrect attempted\n".
1.124 matthew 2161: " u ungraded attempted\n".
2162: " d draft answer saved but not submitted\n".
1.13 minaeibi 2163: " not attempted (blank field)\n".
1.12 minaeibi 2164: " x excused".
1.17 minaeibi 2165: "</pre><p>";
1.2 stredwic 2166: return $Str;
2167: }
2168:
1.28 matthew 2169: #######################################################
2170: #######################################################
2171:
1.30 matthew 2172: =pod
1.2 stredwic 2173:
2174: =back
2175:
2176: =cut
2177:
1.28 matthew 2178: #######################################################
2179: #######################################################
1.2 stredwic 2180:
1.28 matthew 2181: 1;
1.2 stredwic 2182:
1.1 stredwic 2183: __END__
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