Annotation of loncom/interface/statistics/lonstudentassessment.pm, revision 1.85
1.1 stredwic 1: # The LearningOnline Network with CAPA
2: #
1.85 ! matthew 3: # $Id: lonstudentassessment.pm,v 1.84 2004/02/10 16:47:25 matthew 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;
1.28 matthew 53: use Apache::lonstatistics;
1.1 stredwic 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;
1.31 matthew 59: use Spreadsheet::WriteExcel;
1.76 matthew 60: use Spreadsheet::WriteExcel::Utility();
1.31 matthew 61:
62: #######################################################
63: #######################################################
64: =pod
65:
66: =item Package Variables
67:
68: =over 4
69:
70: =item $Statistics Hash ref to store student data. Indexed by symb,
71: contains hashes with keys 'score' and 'max'.
72:
73: =cut
74:
75: #######################################################
76: #######################################################
1.1 stredwic 77:
1.30 matthew 78: my $Statistics;
79:
1.28 matthew 80: #######################################################
81: #######################################################
82:
83: =pod
84:
1.31 matthew 85: =item $show_links 'yes' or 'no' for linking to student performance data
86:
87: =item $output_mode 'html', 'excel', or 'csv' for output mode
88:
1.32 matthew 89: =item $show 'all', 'totals', or 'scores' determines how much data is output
1.31 matthew 90:
1.54 matthew 91: =item $data determines what performance data is shown
92:
93: =item $datadescription A short description of the output data selected.
94:
95: =item $base 'tries' or 'scores' determines the base of the performance shown
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;
1.54 matthew 106: my $data;
107: my $base;
108: my $datadescription;
1.49 matthew 109: my $single_student_mode;
1.28 matthew 110:
1.31 matthew 111: #######################################################
112: #######################################################
113: # End of package variable declarations
1.28 matthew 114:
1.31 matthew 115: =pod
1.28 matthew 116:
1.31 matthew 117: =back
1.28 matthew 118:
1.31 matthew 119: =cut
1.28 matthew 120:
1.31 matthew 121: #######################################################
122: #######################################################
1.28 matthew 123:
1.31 matthew 124: =pod
1.28 matthew 125:
1.31 matthew 126: =item &BuildStudentAssessmentPage()
1.28 matthew 127:
1.31 matthew 128: Inputs:
1.4 stredwic 129:
1.31 matthew 130: =over 4
1.28 matthew 131:
132: =item $r Apache Request
133:
134: =item $c Apache Connection
135:
136: =back
137:
138: =cut
139:
140: #######################################################
141: #######################################################
1.1 stredwic 142: sub BuildStudentAssessmentPage {
1.30 matthew 143: my ($r,$c)=@_;
1.74 matthew 144: #
1.30 matthew 145: undef($Statistics);
1.66 matthew 146: undef($show_links);
147: undef($output_mode);
148: undef($data);
149: undef($base);
150: undef($datadescription);
151: undef($single_student_mode);
1.74 matthew 152: #
153: my %Saveable_Parameters = ('Status' => 'scalar',
154: 'chartoutputmode' => 'scalar',
155: 'chartoutputdata' => 'scalar',
156: 'Section' => 'array',
157: 'StudentData' => 'array',
158: 'Maps' => 'array');
159: &Apache::loncommon::store_course_settings('chart',\%Saveable_Parameters);
160: &Apache::loncommon::restore_course_settings('chart',\%Saveable_Parameters);
161: #
162: &Apache::lonstatistics::PrepareClasslist();
163: #
1.65 matthew 164: $single_student_mode = 0;
1.49 matthew 165: $single_student_mode = 1 if ($ENV{'form.SelectedStudent'});
1.59 matthew 166: if ($ENV{'form.selectstudent'}) {
167: &Apache::lonstatistics::DisplayClasslist($r);
168: return;
169: }
1.30 matthew 170: #
1.31 matthew 171: # Print out the HTML headers for the interface
172: # This also parses the output mode selector
1.54 matthew 173: # This step must *always* be done.
1.30 matthew 174: $r->print(&CreateInterface());
1.31 matthew 175: $r->print('<input type="hidden" name="notfirstrun" value="true" />');
1.49 matthew 176: $r->print('<input type="hidden" name="sort" value="'.
177: $ENV{'form.sort'}.'" />');
1.7 stredwic 178: $r->rflush();
1.58 matthew 179: #
1.49 matthew 180: if (! exists($ENV{'form.notfirstrun'}) && ! $single_student_mode) {
1.31 matthew 181: return;
182: }
183: #
184: my $initialize = \&html_initialize;
185: my $output_student = \&html_outputstudent;
186: my $finish = \&html_finish;
187: #
188: if ($output_mode eq 'excel') {
189: $initialize = \&excel_initialize;
190: $output_student = \&excel_outputstudent;
191: $finish = \&excel_finish;
192: } elsif ($output_mode eq 'csv') {
193: $initialize = \&csv_initialize;
194: $output_student = \&csv_outputstudent;
195: $finish = \&csv_finish;
196: }
1.30 matthew 197: #
198: if($c->aborted()) { return ; }
1.31 matthew 199: #
1.49 matthew 200: # Determine which students we want to look at
201: my @Students;
202: if ($single_student_mode) {
203: @Students = (&Apache::lonstatistics::current_student());
204: $r->print(&next_and_previous_buttons());
205: $r->rflush();
206: } else {
207: @Students = @Apache::lonstatistics::Students;
208: }
1.56 matthew 209: #
210: # Perform generic initialization tasks
211: # Since we use lonnet::EXT to retrieve problem weights,
212: # to ensure current data we must clear the caches out.
213: # This makes sure that parameter changes at the student level
214: # are immediately reflected in the chart.
215: &Apache::lonnet::clear_EXT_cache_status();
1.69 matthew 216: #
217: # Clean out loncoursedata's package data, just to be safe.
218: &Apache::loncoursedata::clear_internal_caches();
1.49 matthew 219: #
1.31 matthew 220: # Call the initialize routine selected above
221: $initialize->($r);
1.49 matthew 222: foreach my $student (@Students) {
1.31 matthew 223: if($c->aborted()) {
224: $finish->($r);
225: return ;
1.1 stredwic 226: }
1.31 matthew 227: # Call the output_student routine selected above
228: $output_student->($r,$student);
229: }
230: # Call the "finish" routine selected above
231: $finish->($r);
232: #
233: return;
234: }
235:
236: #######################################################
237: #######################################################
1.49 matthew 238: sub next_and_previous_buttons {
239: my $Str = '';
240: $Str .= '<input type="hidden" name="SelectedStudent" value="'.
241: $ENV{'form.SelectedStudent'}.'" />';
242: #
243: # Build the previous student link
244: my $previous = &Apache::lonstatistics::previous_student();
245: my $previousbutton = '';
246: if (defined($previous)) {
247: my $sname = $previous->{'username'}.':'.$previous->{'domain'};
248: $previousbutton .= '<input type="button" value="'.
249: 'Previous Student ('.
250: $previous->{'username'}.'@'.$previous->{'domain'}.')'.
251: '" onclick="document.Statistics.SelectedStudent.value='.
252: "'".$sname."'".';'.
253: 'document.Statistics.submit();" />';
254: } else {
255: $previousbutton .= '<input type="button" value="'.
256: 'Previous student (none)'.'" />';
257: }
258: #
259: # Build the next student link
260: my $next = &Apache::lonstatistics::next_student();
261: my $nextbutton = '';
262: if (defined($next)) {
263: my $sname = $next->{'username'}.':'.$next->{'domain'};
264: $nextbutton .= '<input type="button" value="'.
265: 'Next Student ('.
266: $next->{'username'}.'@'.$next->{'domain'}.')'.
267: '" onclick="document.Statistics.SelectedStudent.value='.
268: "'".$sname."'".';'.
269: 'document.Statistics.submit();" />';
270: } else {
271: $nextbutton .= '<input type="button" value="'.
272: 'Next student (none)'.'" />';
273: }
274: #
275: # Build the 'all students' button
276: my $all = '';
277: $all .= '<input type="button" value="All Students" '.
278: '" onclick="document.Statistics.SelectedStudent.value='.
279: "''".';'.'document.Statistics.submit();" />';
280: $Str .= $previousbutton.(' 'x5).$all.(' 'x5).$nextbutton;
281: return $Str;
282: }
283:
284: #######################################################
285: #######################################################
1.30 matthew 286:
1.31 matthew 287: sub get_student_fields_to_show {
288: my @to_show = @Apache::lonstatistics::SelectedStudentData;
289: foreach (@to_show) {
290: if ($_ eq 'all') {
291: @to_show = @Apache::lonstatistics::StudentDataOrder;
292: last;
293: }
294: }
295: return @to_show;
296: }
297:
1.28 matthew 298: #######################################################
299: #######################################################
300:
301: =pod
1.2 stredwic 302:
1.28 matthew 303: =item &CreateInterface()
1.21 minaeibi 304:
1.28 matthew 305: Called by &BuildStudentAssessmentPage to create the top part of the
306: page which displays the chart.
307:
1.30 matthew 308: Inputs: None
1.28 matthew 309:
310: Returns: A string containing the HTML for the headers and top table for
311: the chart page.
312:
313: =cut
314:
315: #######################################################
316: #######################################################
1.2 stredwic 317: sub CreateInterface {
1.4 stredwic 318: my $Str = '';
1.30 matthew 319: # $Str .= &CreateLegend();
320: $Str .= '<table cellspacing="5">'."\n";
321: $Str .= '<tr>';
1.75 matthew 322: $Str .= '<td align="center"><b>'.&mt('Sections').'</b></td>';
323: $Str .= '<td align="center"><b>'.&mt('Student Data</b>').'</td>';
324: $Str .= '<td align="center"><b>'.&mt('Enrollment Status').'</b></td>';
325: $Str .= '<td align="center"><b>'.&mt('Sequences and Folders').'</b></td>';
326: $Str .= '<td align="center"><b>'.&mt('Output Format').'</b>'.
1.58 matthew 327: &Apache::loncommon::help_open_topic("Chart_Output_Formats").
328: '</td>';
1.75 matthew 329: $Str .= '<td align="center"><b>'.&mt('Output Data').'</b>'.
1.58 matthew 330: &Apache::loncommon::help_open_topic("Chart_Output_Data").
331: '</td>';
1.30 matthew 332: $Str .= '</tr>'."\n";
333: #
1.4 stredwic 334: $Str .= '<tr><td align="center">'."\n";
1.29 matthew 335: $Str .= &Apache::lonstatistics::SectionSelect('Section','multiple',5);
1.4 stredwic 336: $Str .= '</td><td align="center">';
1.30 matthew 337: my $only_seq_with_assessments = sub {
338: my $s=shift;
339: if ($s->{'num_assess'} < 1) {
340: return 0;
341: } else {
342: return 1;
343: }
344: };
345: $Str .= &Apache::lonstatistics::StudentDataSelect('StudentData','multiple',
346: 5,undef);
1.46 matthew 347: $Str .= '</td><td>'."\n";
348: $Str .= &Apache::lonhtmlcommon::StatusOptions(undef,undef,5);
1.4 stredwic 349: $Str .= '</td><td>'."\n";
1.30 matthew 350: $Str .= &Apache::lonstatistics::MapSelect('Maps','multiple,all',5,
351: $only_seq_with_assessments);
1.31 matthew 352: $Str .= '</td><td>'."\n";
353: $Str .= &CreateAndParseOutputSelector();
1.54 matthew 354: $Str .= '</td><td>'."\n";
355: $Str .= &CreateAndParseOutputDataSelector();
1.30 matthew 356: $Str .= '</td></tr>'."\n";
357: $Str .= '</table>'."\n";
1.75 matthew 358: $Str .= '<input type="submit" name="Generate Chart" value="'.
359: &mt('Generate Chart').'" />';
1.59 matthew 360: $Str .= ' 'x5;
1.75 matthew 361: $Str .= '<input type="submit" name="selectstudent" value="'.
362: &mt('Select One Student').'" />';
1.59 matthew 363: $Str .= ' 'x5;
1.75 matthew 364: $Str .= '<input type="submit" name="ClearCache" value="'.
365: &mt('Clear Caches').'" />';
1.61 www 366: $Str .= ' 'x5;
367: $Str .= '<br />';
1.4 stredwic 368: return $Str;
1.1 stredwic 369: }
1.30 matthew 370:
371: #######################################################
372: #######################################################
373:
374: =pod
375:
1.31 matthew 376: =item &CreateAndParseOutputSelector()
1.30 matthew 377:
378: =cut
379:
380: #######################################################
381: #######################################################
1.32 matthew 382: my @OutputOptions =
383: ({ name => 'HTML, with links',
384: value => 'html, with links',
1.33 matthew 385: description => 'Output HTML with each symbol linked to the problem '.
1.35 matthew 386: 'which generated it.',
387: mode => 'html',
388: show_links => 'yes',
389: },
1.47 matthew 390: { name => 'HTML, with all links',
391: value => 'html, with all links',
392: description => 'Output HTML with each symbol linked to the problem '.
393: 'which generated it. '.
394: 'This includes links for unattempted problems.',
395: mode => 'html',
396: show_links => 'all',
397: },
1.32 matthew 398: { name => 'HTML, without links',
399: value => 'html, without links',
1.33 matthew 400: description => 'Output HTML. By not including links, the size of the'.
401: ' web page is greatly reduced. If your browser crashes on the '.
1.35 matthew 402: 'full display, try this.',
403: mode => 'html',
404: show_links => 'no',
405: },
1.54 matthew 406: { name => 'Excel',
407: value => 'excel',
408: description => 'Output an Excel file (compatable with Excel 95).',
1.35 matthew 409: mode => 'excel',
410: show_links => 'no',
1.54 matthew 411: },
412: { name => 'CSV',
413: value => 'csv',
414: description => 'Output a comma seperated values file suitable for '.
1.57 matthew 415: 'import into a spreadsheet program. Using this method as opposed '.
416: 'to Excel output allows you to organize your data before importing'.
417: ' it into a spreadsheet program.',
1.35 matthew 418: mode => 'csv',
419: show_links => 'no',
420: },
1.32 matthew 421: );
422:
1.33 matthew 423: sub OutputDescriptions {
424: my $Str = '';
1.58 matthew 425: $Str .= "<h2>Output Formats</h2>\n";
1.33 matthew 426: $Str .= "<dl>\n";
427: foreach my $outputmode (@OutputOptions) {
428: $Str .=" <dt>".$outputmode->{'name'}."</dt>\n";
429: $Str .=" <dd>".$outputmode->{'description'}."</dd>\n";
430: }
431: $Str .= "</dl>\n";
432: return $Str;
433: }
434:
1.31 matthew 435: sub CreateAndParseOutputSelector {
436: my $Str = '';
1.44 matthew 437: my $elementname = 'chartoutputmode';
1.73 matthew 438: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
439: [$elementname]);
1.31 matthew 440: #
441: # Format for output options is 'mode, restrictions';
1.50 matthew 442: my $selected = 'html, without links';
1.31 matthew 443: if (exists($ENV{'form.'.$elementname})) {
444: if (ref($ENV{'form.'.$elementname} eq 'ARRAY')) {
445: $selected = $ENV{'form.'.$elementname}->[0];
446: } else {
447: $selected = $ENV{'form.'.$elementname};
448: }
449: }
450: #
451: # Set package variables describing output mode
452: $show_links = 'no';
453: $output_mode = 'html';
1.35 matthew 454: foreach my $option (@OutputOptions) {
455: next if ($option->{'value'} ne $selected);
456: $output_mode = $option->{'mode'};
457: $show_links = $option->{'show_links'};
1.31 matthew 458: }
1.35 matthew 459:
1.31 matthew 460: #
461: # Build the form element
462: $Str = qq/<select size="5" name="$elementname">/;
1.32 matthew 463: foreach my $option (@OutputOptions) {
464: $Str .= "\n".' <option value="'.$option->{'value'}.'"';
465: $Str .= " selected " if ($option->{'value'} eq $selected);
1.75 matthew 466: $Str .= ">".&mt($option->{'name'})."<\/option>";
1.31 matthew 467: }
468: $Str .= "\n</select>";
469: return $Str;
470: }
1.30 matthew 471:
1.54 matthew 472: ##
473: ## Data selector stuff
474: ##
475: my @OutputDataOptions =
1.57 matthew 476: (
1.72 matthew 477: { name => 'Scores Summary',
1.57 matthew 478: base => 'scores',
479: value => 'sum and total',
480: shortdesc => 'Total Score and Maximum Possible for each '.
481: 'Sequence or Folder',
482: longdesc => 'The score of each student as well as the '.
483: ' maximum possible on each Sequence or Folder.',
484: },
1.71 matthew 485: { name => 'Scores Per Problem',
1.57 matthew 486: base => 'scores',
1.71 matthew 487: value => 'scores',
488: shortdesc => 'Score on each Problem Part',
489: longdesc =>'The students score on each problem part, computed as'.
490: 'the part weight * part awarded',
1.57 matthew 491: },
1.71 matthew 492: # { name => 'Scores Sum',
493: # base => 'scores',
494: # value => 'sum only',
495: # shortdesc => 'Sum of Scores on each Problem Part',
496: # longdesc =>'The total of the scores of the student on each problem'.
497: # ' part in the sequences or folders selected.',
498: # },
499: # { name => 'Scores Summary Table Only',
500: # base => 'scores',
501: # value => 'final table scores',
502: # shortdesc => 'Summary of Scores',
503: # longdesc => 'The average score on each sequence or folder for the '.
504: # 'selected students.',
505: # },
1.57 matthew 506: { name =>'Tries',
507: base =>'tries',
508: value => 'tries',
509: shortdesc => 'Number of Tries before success on each Problem Part',
510: longdesc =>'The number of tries before success on each problem part.',
511: },
512: { name =>'Parts Correct',
513: base =>'tries',
514: value => 'parts correct total',
515: shortdesc => 'Number of Problem Parts completed successfully.',
516: longdesc => 'The Number of Problem Parts completed successfully and '.
517: 'the maximum possible for each student',
518: },
1.71 matthew 519: # { name =>'Parts Correct',
520: # base =>'tries',
521: # value => 'parts correct',
522: # shortdesc => 'Number of Problem Parts completed successfully.',
523: # longdesc => 'The Number of Problem Parts completed successfully'.
524: # ' on each sequence or folder.',
525: # },
526: # { name => 'Parts Summary Table Only',
527: # base => 'tries',
528: # value => 'final table parts',
529: # shortdesc => 'Summary of Parts Correct',
530: # longdesc => 'A summary table of the average number of problem parts '.
531: # 'students were able to get correct on each sequence.',
532: # },
1.57 matthew 533: );
534:
535: sub HTMLifyOutputDataDescriptions {
536: my $Str = '';
1.58 matthew 537: $Str .= "<h2>Output Data</h2>\n";
1.57 matthew 538: $Str .= "<dl>\n";
539: foreach my $option (@OutputDataOptions) {
540: $Str .= ' <dt>'.$option->{'name'}.'</dt>';
541: $Str .= '<dd>'.$option->{'longdesc'}.'</dd>'."\n";
542: }
543: $Str .= "</dl>\n";
544: return $Str;
545: }
1.54 matthew 546:
547: sub CreateAndParseOutputDataSelector {
548: my $Str = '';
549: my $elementname = 'chartoutputdata';
550: #
551: my $selected = 'scores';
552: if (exists($ENV{'form.'.$elementname})) {
553: if (ref($ENV{'form.'.$elementname} eq 'ARRAY')) {
554: $selected = $ENV{'form.'.$elementname}->[0];
555: } else {
556: $selected = $ENV{'form.'.$elementname};
557: }
558: }
559: #
560: $data = 'scores';
561: foreach my $option (@OutputDataOptions) {
562: if ($option->{'value'} eq $selected) {
563: $data = $option->{'value'};
564: $base = $option->{'base'};
565: $datadescription = $option->{'shortdesc'};
566: }
567: }
568: #
569: # Build the form element
570: $Str = qq/<select size="5" name="$elementname">/;
571: foreach my $option (@OutputDataOptions) {
572: $Str .= "\n".' <option value="'.$option->{'value'}.'"';
573: $Str .= " selected " if ($option->{'value'} eq $data);
1.75 matthew 574: $Str .= ">".&mt($option->{'name'})."<\/option>";
1.54 matthew 575: }
576: $Str .= "\n</select>";
577: return $Str;
578:
579: }
580:
1.28 matthew 581: #######################################################
582: #######################################################
1.1 stredwic 583:
1.28 matthew 584: =pod
585:
1.31 matthew 586: =head2 HTML output routines
1.28 matthew 587:
1.31 matthew 588: =item &html_initialize($r)
1.28 matthew 589:
1.31 matthew 590: Create labels for the columns of student data to show.
1.28 matthew 591:
1.31 matthew 592: =item &html_outputstudent($r,$student)
1.28 matthew 593:
1.31 matthew 594: Return a line of the chart for a student.
1.28 matthew 595:
1.31 matthew 596: =item &html_finish($r)
1.28 matthew 597:
598: =cut
599:
600: #######################################################
601: #######################################################
1.31 matthew 602: {
603: my $padding;
604: my $count;
605:
1.39 matthew 606: my $nodata_count; # The number of students for which there is no data
607: my %prog_state; # progress state used by loncommon PrgWin routines
608:
1.31 matthew 609: sub html_initialize {
610: my ($r) = @_;
1.30 matthew 611: #
612: $padding = ' 'x3;
1.35 matthew 613: $count = 0;
1.39 matthew 614: $nodata_count = 0;
1.66 matthew 615: undef(%prog_state);
1.30 matthew 616: #
1.38 matthew 617: $r->print("<h3>".$ENV{'course.'.$ENV{'request.course.id'}.'.description'}.
618: " ".localtime(time)."</h3>");
1.39 matthew 619:
1.55 matthew 620: if ($data !~ /^final table/) {
621: $r->print("<h3>".$datadescription."</h3>");
622: }
1.39 matthew 623: #
624: # Set up progress window for 'final table' display only
1.54 matthew 625: if ($data =~ /^final table/) {
1.39 matthew 626: my $studentcount = scalar(@Apache::lonstatistics::Students);
627: %prog_state=&Apache::lonhtmlcommon::Create_PrgWin
628: ($r,'Summary Table Status',
629: 'Summary Table Compilation Progress', $studentcount);
630: }
1.31 matthew 631: my $Str = "<pre>\n";
1.30 matthew 632: # First, the @StudentData fields need to be listed
1.31 matthew 633: my @to_show = &get_student_fields_to_show();
1.30 matthew 634: foreach my $field (@to_show) {
635: my $title=$Apache::lonstatistics::StudentData{$field}->{'title'};
636: my $base =$Apache::lonstatistics::StudentData{$field}->{'base_width'};
637: my $width=$Apache::lonstatistics::StudentData{$field}->{'width'};
638: $Str .= $title.' 'x($width-$base).$padding;
639: }
640: # Now the selected sequences need to be listed
1.40 matthew 641: foreach my $sequence (&Apache::lonstatistics::Sequences_with_Assess()){
1.31 matthew 642: my $title = $sequence->{'title'};
643: my $base = $sequence->{'base_width'};
644: my $width = $sequence->{'width'};
645: $Str .= $title.' 'x($width-$base).$padding;
1.30 matthew 646: }
1.54 matthew 647: $Str .= "total</pre>\n";
1.31 matthew 648: $Str .= "<pre>";
1.39 matthew 649: #
650: # Check for suppression of output
1.54 matthew 651: if ($data =~ /^final table/) {
1.39 matthew 652: $Str = '';
653: }
1.31 matthew 654: $r->print($Str);
655: $r->rflush();
656: return;
1.30 matthew 657: }
658:
1.31 matthew 659: sub html_outputstudent {
660: my ($r,$student) = @_;
1.2 stredwic 661: my $Str = '';
1.35 matthew 662: #
1.55 matthew 663: if($count++ % 5 == 0 && $count > 0 && $data !~ /^final table/) {
1.35 matthew 664: $r->print("</pre><pre>");
665: }
1.30 matthew 666: # First, the @StudentData fields need to be listed
1.31 matthew 667: my @to_show = &get_student_fields_to_show();
1.30 matthew 668: foreach my $field (@to_show) {
669: my $title=$student->{$field};
1.31 matthew 670: my $base = length($title);
1.30 matthew 671: my $width=$Apache::lonstatistics::StudentData{$field}->{'width'};
672: $Str .= $title.' 'x($width-$base).$padding;
673: }
674: # Get ALL the students data
675: my %StudentsData;
676: my @tmp = &Apache::loncoursedata::get_current_state
677: ($student->{'username'},$student->{'domain'},undef,
678: $ENV{'request.course.id'});
679: if ((scalar @tmp > 0) && ($tmp[0] !~ /^error:/)) {
680: %StudentsData = @tmp;
681: }
682: if (scalar(@tmp) < 1) {
1.39 matthew 683: $nodata_count++;
1.54 matthew 684: return if ($data =~ /^final table/);
1.30 matthew 685: $Str .= '<font color="blue">No Course Data</font>'."\n";
1.31 matthew 686: $r->print($Str);
687: $r->rflush();
688: return;
1.30 matthew 689: }
690: #
691: # By sequence build up the data
692: my $studentstats;
1.31 matthew 693: my $PerformanceStr = '';
1.40 matthew 694: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
1.54 matthew 695: my ($performance,$performance_length,$score,$seq_max,$rawdata);
696: if ($base eq 'tries') {
697: ($performance,$performance_length,$score,$seq_max,$rawdata) =
698: &StudentTriesOnSequence($student,\%StudentsData,
699: $seq,$show_links);
700: } else {
701: ($performance,$performance_length,$score,$seq_max,$rawdata) =
702: &StudentPerformanceOnSequence($student,\%StudentsData,
703: $seq,$show_links);
704: }
705: my $ratio = sprintf("%3d",$score).'/'.sprintf("%3d",$seq_max);
1.31 matthew 706: #
1.54 matthew 707: if ($data eq 'sum and total' || $data eq 'parts correct total') {
708: $performance = $ratio;
709: $performance .= ' 'x($seq->{'width'}-length($ratio));
710: } elsif ($data eq 'sum only' || $data eq 'parts correct') {
711: $performance = $score;
712: $performance .= ' 'x($seq->{'width'}-length($score));
1.31 matthew 713: } else {
714: # Pad with extra spaces
1.51 matthew 715: $performance .= ' 'x($seq->{'width'}-$performance_length-
1.31 matthew 716: length($ratio)
717: ).$ratio;
1.30 matthew 718: }
1.31 matthew 719: #
720: $Str .= $performance.$padding;
721: #
722: $studentstats->{$seq->{'symb'}}->{'score'}= $score;
723: $studentstats->{$seq->{'symb'}}->{'max'} = $seq_max;
1.30 matthew 724: }
725: #
726: # Total it up and store the statistics info.
727: my ($score,$max) = (0,0);
728: while (my ($symb,$seq_stats) = each (%{$studentstats})) {
729: $Statistics->{$symb}->{'score'} += $seq_stats->{'score'};
1.54 matthew 730: if ($Statistics->{$symb}->{'max'} < $seq_stats->{'max'}) {
731: $Statistics->{$symb}->{'max'} = $seq_stats->{'max'};
732: }
1.30 matthew 733: $score += $seq_stats->{'score'};
734: $max += $seq_stats->{'max'};
735: }
1.31 matthew 736: $Str .= ' '.' 'x(length($max)-length($score)).$score.'/'.$max;
1.30 matthew 737: $Str .= " \n";
1.39 matthew 738: #
739: # Check for suppressed output and update the progress window if so...
1.54 matthew 740: if ($data =~ /^final table/) {
1.39 matthew 741: $Str = '';
742: &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,
743: 'last student');
744: }
745: #
1.31 matthew 746: $r->print($Str);
747: #
748: $r->rflush();
749: return;
1.30 matthew 750: }
1.2 stredwic 751:
1.31 matthew 752: sub html_finish {
753: my ($r) = @_;
1.39 matthew 754: #
755: # Check for suppressed output and close the progress window if so
1.54 matthew 756: if ($data =~ /^final table/) {
1.39 matthew 757: &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
758: } else {
759: $r->print("</pre>\n");
760: }
1.49 matthew 761: if ($single_student_mode) {
762: $r->print(&SingleStudentTotal());
763: } else {
764: $r->print(&StudentAverageTotal());
765: }
1.31 matthew 766: $r->rflush();
767: return;
768: }
769:
1.39 matthew 770: sub StudentAverageTotal {
771: my $Str = "<h3>Summary Tables</h3>\n";
772: my $num_students = scalar(@Apache::lonstatistics::Students);
773: my $total_ave = 0;
774: my $total_max = 0;
775: $Str .= '<table border=2 cellspacing="1">'."\n";
776: $Str .= "<tr><th>Title</th><th>Average</th><th>Maximum</th></tr>\n";
1.40 matthew 777: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
1.42 matthew 778: my $ave;
779: if ($num_students > $nodata_count) {
780: $ave = int(100*($Statistics->{$seq->{'symb'}}->{'score'}/
781: ($num_students-$nodata_count)))/100;
782: } else {
783: $ave = 0;
784: }
1.39 matthew 785: $total_ave += $ave;
1.54 matthew 786: my $max = $Statistics->{$seq->{'symb'}}->{'max'};
1.39 matthew 787: $total_max += $max;
1.82 matthew 788: $ave = sprintf("%.2f",$ave);
1.39 matthew 789: $Str .= '<tr><td>'.$seq->{'title'}.'</td>'.
1.82 matthew 790: '<td align="right">'.$ave.' </td>'.
791: '<td align="right">'.$max.' '.'</td></tr>'."\n";
1.39 matthew 792: }
1.82 matthew 793: $total_ave = sprintf('%.2f',$total_ave); # only two digit
1.39 matthew 794: $Str .= "</table>\n";
795: $Str .= '<table border=2 cellspacing="1">'."\n";
796: $Str .= '<tr><th>Number of Students</th><th>Average</th>'.
797: "<th>Maximum</th></tr>\n";
1.82 matthew 798: $Str .= '<tr>'.
799: '<td align="right">'.($num_students-$nodata_count).'</td>'.
800: '<td align="right">'.$total_ave.' '.'</td>'.
801: '<td align="right">'.$total_max.' '.'</td>';
1.39 matthew 802: $Str .= "</table>\n";
803: return $Str;
804: }
805:
1.49 matthew 806: sub SingleStudentTotal {
807: my $student = &Apache::lonstatistics::current_student();
1.52 matthew 808: my $Str = "<h3>Summary table for ".$student->{'fullname'}." ".
809: $student->{'username'}.'@'.$student->{'domain'}."</h3>\n";
1.49 matthew 810: $Str .= '<table border=2 cellspacing="1">'."\n";
811: $Str .=
812: "<tr><th>Sequence or Folder</th><th>Score</th><th>Maximum</th></tr>\n";
813: my $total = 0;
814: my $total_max = 0;
815: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
816: my $value = $Statistics->{$seq->{'symb'}}->{'score'};
817: my $max = $Statistics->{$seq->{'symb'}}->{'max'};
818: $Str .= '<tr><td>'.$seq->{'title'}.'</td>'.
819: '<td align="right">'.$value.'</td>'.
820: '<td align="right">'.$max.'</td></tr>'."\n";
821: $total += $value;
822: $total_max +=$max;
823: }
824: $Str .= '<tr><td><b>Total</b></td>'.
825: '<td align="right">'.$total.'</td>'.
826: '<td align="right">'.$total_max."</td></tr>\n";
827: $Str .= "</table>\n";
828: return $Str;
829: }
830:
1.31 matthew 831: }
832:
833: #######################################################
834: #######################################################
835:
836: =pod
837:
838: =head2 EXCEL subroutines
839:
840: =item &excel_initialize($r)
841:
842: =item &excel_outputstudent($r,$student)
843:
844: =item &excel_finish($r)
845:
846: =cut
847:
848: #######################################################
849: #######################################################
850: {
851:
852: my $excel_sheet;
1.32 matthew 853: my $excel_workbook;
854:
855: my $filename;
856: my $rows_output;
857: my $cols_output;
858:
1.36 matthew 859: my %prog_state; # progress window state
1.54 matthew 860: my $request_aborted;
1.31 matthew 861:
1.76 matthew 862: my $total_formula;
863:
1.31 matthew 864: sub excel_initialize {
865: my ($r) = @_;
866: #
1.66 matthew 867: undef ($excel_sheet);
868: undef ($excel_workbook);
869: undef ($filename);
870: undef ($rows_output);
871: undef ($cols_output);
872: undef (%prog_state);
873: undef ($request_aborted);
1.76 matthew 874: undef ($total_formula);
1.66 matthew 875: #
1.54 matthew 876: my $total_columns = scalar(&get_student_fields_to_show());
877: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
878: # Add 2 because we need a 'sum' and 'total' column for each
879: $total_columns += $seq->{'num_assess_parts'}+2;
880: }
881: if ($data eq 'tries' && $total_columns > 255) {
882: $r->print(<<END);
883: <h2>Unable to Complete Request</h2>
884: <p>
885: LON-CAPA is unable to produce your Excel spreadsheet because your selections
886: will result in more than 255 columns. Excel allows only 255 columns in a
887: spreadsheet.
888: </p><p>
889: You may consider reducing the number of <b>Sequences or Folders</b> you
890: have selected.
891: </p><p>
892: LON-CAPA can produce <b>CSV</b> files of this data or Excel files of the
893: summary data (<b>Parts Correct</b> or <b>Parts Correct & Totals</b>).
894: </p>
895: END
896: $request_aborted = 1;
897: }
898: if ($data eq 'scores' && $total_columns > 255) {
899: $r->print(<<END);
900: <h2>Unable to Complete Request</h2>
901: <p>
902: LON-CAPA is unable to produce your Excel spreadsheet because your selections
903: will result in more than 255 columns. Excel allows only 255 columns in a
904: spreadsheet.
905: </p><p>
906: You may consider reducing the number of <b>Sequences or Folders</b> you
907: have selected.
908: </p><p>
909: LON-CAPA can produce <b>CSV</b> files of this data or Excel files of the
1.80 matthew 910: <b>Scores Summary</b> data.
1.54 matthew 911: </p>
912: END
913: $request_aborted = 1;
914: }
915: if ($data =~ /^final table/) {
916: $r->print(<<END);
917: <h2>Unable to Complete Request</h2>
918: <p>
919: The <b>Summary Table (Scores)</b> option is not available for non-HTML output.
920: </p>
921: END
922: $request_aborted = 1;
923: }
924: return if ($request_aborted);
925: #
1.32 matthew 926: $filename = '/prtspool/'.
1.31 matthew 927: $ENV{'user.name'}.'_'.$ENV{'user.domain'}.'_'.
928: time.'_'.rand(1000000000).'.xls';
1.32 matthew 929: #
930: $excel_workbook = undef;
931: $excel_sheet = undef;
932: #
933: $rows_output = 0;
934: $cols_output = 0;
935: #
936: # Create sheet
937: $excel_workbook = Spreadsheet::WriteExcel->new('/home/httpd'.$filename);
938: #
939: # Check for errors
940: if (! defined($excel_workbook)) {
1.31 matthew 941: $r->log_error("Error creating excel spreadsheet $filename: $!");
942: $r->print("Problems creating new Excel file. ".
943: "This error has been logged. ".
944: "Please alert your LON-CAPA administrator");
1.32 matthew 945: return ;
1.31 matthew 946: }
947: #
948: # The excel spreadsheet stores temporary data in files, then put them
949: # together. If needed we should be able to disable this (memory only).
950: # The temporary directory must be specified before calling 'addworksheet'.
951: # File::Temp is used to determine the temporary directory.
1.32 matthew 952: $excel_workbook->set_tempdir($Apache::lonnet::tmpdir);
953: #
954: # Add a worksheet
1.33 matthew 955: my $sheetname = $ENV{'course.'.$ENV{'request.course.id'}.'.description'};
1.67 matthew 956: $sheetname = &Apache::loncommon::clean_excel_name($sheetname);
1.33 matthew 957: $excel_sheet = $excel_workbook->addworksheet($sheetname);
1.32 matthew 958: #
1.85 ! matthew 959: # Define some potentially useful formats
! 960: my $format;
! 961: $format->{'header'} = $excel_workbook->add_format(bold => 1,
! 962: bottom => 1,
! 963: align => 'center');
! 964: $format->{'bold'} = $excel_workbook->add_format(bold=>1);
! 965: $format->{'h1'} = $excel_workbook->add_format(bold=>1, size=>18);
! 966: $format->{'h2'} = $excel_workbook->add_format(bold=>1, size=>16);
! 967: $format->{'h3'} = $excel_workbook->add_format(bold=>1, size=>14);
! 968: $format->{'date'} = $excel_workbook->add_format(num_format=>
! 969: 'mmm d yyyy hh:mm AM/PM');
! 970: #
1.34 matthew 971: # Put the course description in the header
972: $excel_sheet->write($rows_output,$cols_output++,
1.85 ! matthew 973: $ENV{'course.'.$ENV{'request.course.id'}.'.description'},
! 974: $format->{'h1'});
1.34 matthew 975: $cols_output += 3;
976: #
977: # Put a description of the sections listed
978: my $sectionstring = '';
979: my @Sections = @Apache::lonstatistics::SelectedSections;
980: if (scalar(@Sections) > 1) {
981: if (scalar(@Sections) > 2) {
982: my $last = pop(@Sections);
983: $sectionstring = "Sections ".join(', ',@Sections).', and '.$last;
984: } else {
985: $sectionstring = "Sections ".join(' and ',@Sections);
986: }
987: } else {
988: if ($Sections[0] eq 'all') {
989: $sectionstring = "All sections";
990: } else {
991: $sectionstring = "Section ".$Sections[0];
992: }
993: }
1.85 ! matthew 994: $excel_sheet->write($rows_output,$cols_output++,$sectionstring,
! 995: $format->{'h3'});
1.34 matthew 996: $cols_output += scalar(@Sections);
997: #
998: # Put the date in there too
1.54 matthew 999: $excel_sheet->write($rows_output++,$cols_output++,
1.85 ! matthew 1000: 'Compiled on '.localtime(time),$format->{'h3'});
1.34 matthew 1001: #
1.54 matthew 1002: $cols_output = 0;
1.85 ! matthew 1003: $excel_sheet->write($rows_output++,$cols_output++,$datadescription,
! 1004: $format->{'h3'});
1.54 matthew 1005: #
1006: if ($data eq 'tries' || $data eq 'scores') {
1007: $rows_output++;
1008: }
1.34 matthew 1009: #
1.32 matthew 1010: # Add the student headers
1.34 matthew 1011: $cols_output = 0;
1.32 matthew 1012: foreach my $field (&get_student_fields_to_show()) {
1.85 ! matthew 1013: $excel_sheet->write($rows_output,$cols_output++,$field,
! 1014: $format->{'bold'});
1.32 matthew 1015: }
1.54 matthew 1016: my $row_offset = 0;
1017: if ($data eq 'tries' || $data eq 'scores') {
1018: $row_offset = -1;
1019: }
1.32 matthew 1020: #
1.54 matthew 1021: # Add the remaining column headers
1.76 matthew 1022: my $total_formula_string = '=0';
1.40 matthew 1023: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
1.54 matthew 1024: $excel_sheet->write($rows_output+$row_offset,
1.85 ! matthew 1025: $cols_output,$seq->{'title'},$format->{'h3'});
1.54 matthew 1026: if ($data eq 'tries' || $data eq 'scores') {
1.76 matthew 1027: # Determine starting cell
1028: $seq->{'Excel:startcell'}=
1029: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1030: ($rows_output,$cols_output);
1031: $seq->{'Excel:startcol'}=$cols_output;
1032: # Put the names of the problems and parts into the sheet
1.82 matthew 1033: my $count = 0;
1.54 matthew 1034: foreach my $res (@{$seq->{'contents'}}) {
1.84 matthew 1035: if ($res->{'type'} ne 'assessment' ||
1036: ! exists($res->{'parts'}) ||
1037: ref($res->{'parts'}) ne 'ARRAY' ||
1038: scalar(@{$res->{'parts'}}) < 1) {
1039: next;
1040: }
1.54 matthew 1041: if (scalar(@{$res->{'parts'}}) > 1) {
1042: foreach my $part (@{$res->{'parts'}}) {
1043: $excel_sheet->write($rows_output,
1044: $cols_output++,
1.85 ! matthew 1045: $res->{'title'}.' part '.$part,
! 1046: $format->{'bold'});
1.54 matthew 1047: }
1048: } else {
1049: $excel_sheet->write($rows_output,
1050: $cols_output++,
1.85 ! matthew 1051: $res->{'title'},$format->{'bold'});
1.54 matthew 1052: }
1.82 matthew 1053: $count++;
1.54 matthew 1054: }
1.76 matthew 1055: # Determine ending cell
1.82 matthew 1056: if ($count == 1) {
1057: $seq->{'Excel:endcell'} = $seq->{'Excel:startcell'};
1058: $seq->{'Excel:endcol'} = $seq->{'Excel:startcol'};
1059: } else {
1.83 matthew 1060: $seq->{'Excel:endcell'} =
1061: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1062: ($rows_output,$cols_output-1);
1.82 matthew 1063: $seq->{'Excel:endcol'} = $cols_output-1;
1064: }
1.76 matthew 1065: # Create the formula for summing up this sequence
1.83 matthew 1066: if (! exists($seq->{'Excel:endcell'}) ||
1067: ! defined($seq->{'Excel:endcell'})) {
1068: $seq->{'Excel:endcell'} = $seq->{'Excel:startcell'};
1069: }
1.76 matthew 1070: $seq->{'Excel:sum'}= $excel_sheet->store_formula
1071: ('=SUM('.$seq->{'Excel:startcell'}.
1072: ':'.$seq->{'Excel:endcell'}.')');
1.79 matthew 1073: }
1074: # Determine cell the score is held in
1075: $seq->{'Excel:scorecell'} =
1076: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1077: ($rows_output,$cols_output);
1078: $seq->{'Excel:scorecol'}=$cols_output;
1079: if ($data eq 'parts correct total') {
1.85 ! matthew 1080: $excel_sheet->write($rows_output,$cols_output++,'parts correct',
! 1081: $format->{'bold'});
1.32 matthew 1082: } else {
1.85 ! matthew 1083: $excel_sheet->write($rows_output,$cols_output++,'score',
! 1084: $format->{'bold'});
1.32 matthew 1085: }
1.79 matthew 1086: #
1087: $total_formula_string.='+'.
1088: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1089: ($rows_output,$cols_output-1);
1.85 ! matthew 1090: $excel_sheet->write($rows_output,$cols_output++,'maximum',
! 1091: $format->{'bold'});
1.32 matthew 1092: }
1.85 ! matthew 1093: $excel_sheet->write($rows_output,$cols_output++,'Grand Total',
! 1094: $format->{'bold'});
1.76 matthew 1095: $total_formula = $excel_sheet->store_formula($total_formula_string);
1.32 matthew 1096: #
1097: # Bookkeeping
1.54 matthew 1098: if ($data eq 'sum and total' || $data eq 'parts correct total') {
1.34 matthew 1099: $rows_output += 2;
1.32 matthew 1100: } else {
1.34 matthew 1101: $rows_output += 1;
1.45 matthew 1102: }
1103: #
1104: # Output a row for MAX
1.54 matthew 1105: $cols_output = 0;
1106: foreach my $field (&get_student_fields_to_show()) {
1107: if ($field eq 'username' || $field eq 'fullname' ||
1108: $field eq 'id') {
1.85 ! matthew 1109: $excel_sheet->write($rows_output,$cols_output++,'Maximum',
! 1110: $format->{'bold'});
1.54 matthew 1111: } else {
1112: $excel_sheet->write($rows_output,$cols_output++,'');
1113: }
1114: }
1115: #
1116: # Add the maximums for each sequence or assessment
1.76 matthew 1117: my %total_cell_translation;
1.79 matthew 1118: my $grand_total = 0;
1.54 matthew 1119: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
1.76 matthew 1120: $total_cell_translation{$seq->{'Excel:scorecell'}} =
1121: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1122: ($rows_output,$seq->{'Excel:scorecol'});
1.54 matthew 1123: my $weight;
1124: my $max = 0;
1125: foreach my $resource (@{$seq->{'contents'}}) {
1126: next if ($resource->{'type'} ne 'assessment');
1127: foreach my $part (@{$resource->{'parts'}}) {
1128: $weight = 1;
1129: if ($base eq 'scores') {
1130: $weight = &Apache::lonnet::EXT
1131: ('resource.'.$part.'.weight',$resource->{'symb'},
1132: undef,undef,undef);
1133: if (!defined($weight) || ($weight eq '')) {
1134: $weight=1;
1135: }
1136: }
1137: if ($data eq 'scores') {
1138: $excel_sheet->write($rows_output,$cols_output++,$weight);
1139: } elsif ($data eq 'tries') {
1140: $excel_sheet->write($rows_output,$cols_output++,'');
1141: }
1142: $max += $weight;
1.45 matthew 1143: }
1.54 matthew 1144: }
1145: if (! ($data eq 'sum only' || $data eq 'parts correct')) {
1146: $excel_sheet->write($rows_output,$cols_output++,'');
1.45 matthew 1147: }
1.79 matthew 1148: #
1149: if ($data eq 'tries' || $data eq 'scores') {
1150: my %replaceCells;
1151: $replaceCells{$seq->{'Excel:startcell'}} =
1152: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1153: ($rows_output,$seq->{'Excel:startcol'});
1154: $replaceCells{$seq->{'Excel:endcell'}} =
1155: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1156: ($rows_output,$seq->{'Excel:endcol'});
1157: $excel_sheet->repeat_formula($rows_output,$cols_output++,
1158: $seq->{'Excel:sum'},undef,
1159: %replaceCells);
1160: } else {
1161: $excel_sheet->write($rows_output,$cols_output++,
1162: $max);
1163: }
1164: $grand_total+=$max;
1165: }
1166: if ($data eq 'tries' || $data eq 'scores') {
1.76 matthew 1167: $excel_sheet->repeat_formula($rows_output,$cols_output++,
1.79 matthew 1168: $total_formula,undef,
1169: %total_cell_translation);
1170: } else {
1171: $excel_sheet->write($rows_output,$cols_output++,$grand_total);
1.76 matthew 1172: }
1.54 matthew 1173: $rows_output++;
1.32 matthew 1174: #
1175: # Let the user know what we are doing
1176: my $studentcount = scalar(@Apache::lonstatistics::Students);
1.85 ! matthew 1177: if ($ENV{'form.SelectedStudent'}) {
! 1178: $studentcount = '1';
! 1179: }
! 1180: if ($studentcount > 1) {
! 1181: $r->print('<h1>'.&mt('Compiling Excel spreadsheet for [_1] students',
! 1182: $studentcount)."</h1>\n");
! 1183: } else {
! 1184: $r->print('<h1>'.
! 1185: &mt('Compiling Excel spreadsheet for 1 student').
! 1186: "</h1>\n");
! 1187: }
1.32 matthew 1188: $r->rflush();
1.31 matthew 1189: #
1.36 matthew 1190: # Initialize progress window
1191: %prog_state=&Apache::lonhtmlcommon::Create_PrgWin
1192: ($r,'Excel File Compilation Status',
1193: 'Excel File Compilation Progress', $studentcount);
1194: #
1.62 matthew 1195: &Apache::lonhtmlcommon::Update_PrgWin($r,\%prog_state,
1196: 'Processing first student');
1.31 matthew 1197: return;
1198: }
1199:
1200: sub excel_outputstudent {
1201: my ($r,$student) = @_;
1.54 matthew 1202: return if ($request_aborted);
1.32 matthew 1203: return if (! defined($excel_sheet));
1204: $cols_output=0;
1205: #
1206: # Write out student data
1207: my @to_show = &get_student_fields_to_show();
1208: foreach my $field (@to_show) {
1209: $excel_sheet->write($rows_output,$cols_output++,$student->{$field});
1210: }
1211: #
1212: # Get student assessment data
1213: my %StudentsData;
1214: my @tmp = &Apache::loncoursedata::get_current_state($student->{'username'},
1215: $student->{'domain'},
1216: undef,
1217: $ENV{'request.course.id'});
1218: if ((scalar @tmp > 0) && ($tmp[0] !~ /^error:/)) {
1219: %StudentsData = @tmp;
1220: }
1221: #
1222: # Write out sequence scores and totals data
1.76 matthew 1223: my %total_cell_translation;
1.40 matthew 1224: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
1.85 ! matthew 1225: $cols_output = $seq->{'Excel:startcol'};
1.76 matthew 1226: # Keep track of cells to translate in total cell
1227: $total_cell_translation{$seq->{'Excel:scorecell'}} =
1228: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1229: ($rows_output,$seq->{'Excel:scorecol'});
1230: #
1.54 matthew 1231: my ($performance,$performance_length,$score,$seq_max,$rawdata);
1232: if ($base eq 'tries') {
1233: ($performance,$performance_length,$score,$seq_max,$rawdata) =
1234: &StudentTriesOnSequence($student,\%StudentsData,
1235: $seq,'no');
1236: } else {
1237: ($performance,$performance_length,$score,$seq_max,$rawdata) =
1238: &StudentPerformanceOnSequence($student,\%StudentsData,
1239: $seq,'no');
1240: }
1241: if ($data eq 'tries' || $data eq 'scores') {
1242: foreach my $value (@$rawdata) {
1243: $excel_sheet->write($rows_output,$cols_output++,$value);
1244: }
1.76 matthew 1245: # Write a formula for the sum of this sequence
1246: my %replaceCells;
1247: $replaceCells{$seq->{'Excel:startcell'}} =
1248: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1249: ($rows_output,$seq->{'Excel:startcol'});
1250: $replaceCells{$seq->{'Excel:endcell'}} =
1251: &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
1252: ($rows_output,$seq->{'Excel:endcol'});
1253: # The undef is for the format
1.81 matthew 1254: if (scalar(keys(%replaceCells)) == 1) {
1255: $excel_sheet->repeat_formula($rows_output,$cols_output++,
1256: $seq->{'Excel:sum'},undef,
1257: %replaceCells,%replaceCells);
1258: } else {
1259: $excel_sheet->repeat_formula($rows_output,$cols_output++,
1260: $seq->{'Excel:sum'},undef,
1261: %replaceCells);
1262: }
1.76 matthew 1263: #
1.54 matthew 1264: $excel_sheet->write($rows_output,$cols_output++,$seq_max);
1265: } elsif ($data eq 'sum and total' || $data eq 'sum only' ||
1266: $data eq 'parts correct' || $data eq 'parts correct total') {
1.32 matthew 1267: $excel_sheet->write($rows_output,$cols_output++,$score);
1268: }
1.54 matthew 1269: if ($data eq 'sum and total' || $data eq 'parts correct total') {
1.32 matthew 1270: $excel_sheet->write($rows_output,$cols_output++,$seq_max);
1271: }
1272: }
1.76 matthew 1273: #
1274: $excel_sheet->repeat_formula($rows_output,$cols_output++,
1275: $total_formula,undef,
1276: %total_cell_translation);
1.32 matthew 1277: #
1278: # Bookkeeping
1279: $rows_output++;
1280: $cols_output=0;
1281: #
1.36 matthew 1282: # Update the progress window
1283: &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,'last student');
1.32 matthew 1284: return;
1.31 matthew 1285: }
1286:
1287: sub excel_finish {
1288: my ($r) = @_;
1.54 matthew 1289: return if ($request_aborted);
1.32 matthew 1290: return if (! defined($excel_sheet));
1291: #
1292: # Write the excel file
1293: $excel_workbook->close();
1294: my $c = $r->connection();
1295: #
1296: return if($c->aborted());
1297: #
1.36 matthew 1298: # Close the progress window
1299: &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
1300: #
1.32 matthew 1301: # Tell the user where to get their excel file
1.36 matthew 1302: $r->print('<br />'.
1.32 matthew 1303: '<a href="'.$filename.'">Your Excel spreadsheet.</a>'."\n");
1304: $r->rflush();
1305: return;
1.31 matthew 1306: }
1307:
1308: }
1.30 matthew 1309: #######################################################
1310: #######################################################
1311:
1312: =pod
1313:
1.31 matthew 1314: =head2 CSV output routines
1315:
1316: =item &csv_initialize($r)
1317:
1318: =item &csv_outputstudent($r,$student)
1319:
1320: =item &csv_finish($r)
1.30 matthew 1321:
1322: =cut
1323:
1324: #######################################################
1325: #######################################################
1.31 matthew 1326: {
1327:
1.37 matthew 1328: my $outputfile;
1329: my $filename;
1.54 matthew 1330: my $request_aborted;
1.37 matthew 1331: my %prog_state; # progress window state
1332:
1.31 matthew 1333: sub csv_initialize{
1334: my ($r) = @_;
1.37 matthew 1335: #
1336: # Clean up
1.66 matthew 1337: undef($outputfile);
1338: undef($filename);
1339: undef($request_aborted);
1.37 matthew 1340: undef(%prog_state);
1341: #
1.54 matthew 1342: # Deal with unimplemented requests
1343: $request_aborted = undef;
1344: if ($data =~ /final table/) {
1345: $r->print(<<END);
1346: <h2>Unable to Complete Request</h2>
1347: <p>
1348: The <b>Summary Table (Scores)</b> option is not available for non-HTML output.
1349: </p>
1350: END
1351: $request_aborted = 1;
1352: }
1353: return if ($request_aborted);
1354:
1355: #
1.37 matthew 1356: # Open a file
1357: $filename = '/prtspool/'.
1358: $ENV{'user.name'}.'_'.$ENV{'user.domain'}.'_'.
1359: time.'_'.rand(1000000000).'.csv';
1360: unless ($outputfile = Apache::File->new('>/home/httpd'.$filename)) {
1361: $r->log_error("Couldn't open $filename for output $!");
1362: $r->print("Problems occured in writing the csv file. ".
1363: "This error has been logged. ".
1364: "Please alert your LON-CAPA administrator.");
1365: $outputfile = undef;
1366: }
1.38 matthew 1367: #
1368: # Datestamp
1369: my $description = $ENV{'course.'.$ENV{'request.course.id'}.'.description'};
1370: print $outputfile '"'.&Apache::loncommon::csv_translate($description).'",'.
1371: '"'.&Apache::loncommon::csv_translate(scalar(localtime(time))).'"'.
1372: "\n";
1.37 matthew 1373: #
1374: # Print out the headings
1375: my $Str = '';
1376: my $Str2 = undef;
1377: foreach my $field (&get_student_fields_to_show()) {
1.54 matthew 1378: if ($data eq 'sum only') {
1.37 matthew 1379: $Str .= '"'.&Apache::loncommon::csv_translate($field).'",';
1.54 matthew 1380: } elsif ($data eq 'sum and total' || $data eq 'parts correct total') {
1.37 matthew 1381: $Str .= '"",'; # first row empty on the student fields
1382: $Str2 .= '"'.&Apache::loncommon::csv_translate($field).'",';
1.54 matthew 1383: } elsif ($data eq 'scores' || $data eq 'tries' ||
1384: $data eq 'parts correct') {
1.53 matthew 1385: $Str .= '"",';
1386: $Str2 .= '"'.&Apache::loncommon::csv_translate($field).'",';
1.37 matthew 1387: }
1388: }
1.40 matthew 1389: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
1.54 matthew 1390: if ($data eq 'sum only' || $data eq 'parts correct') {
1.37 matthew 1391: $Str .= '"'.&Apache::loncommon::csv_translate($seq->{'title'}).
1392: '",';
1.54 matthew 1393: } elsif ($data eq 'sum and total' || $data eq 'parts correct total') {
1.37 matthew 1394: $Str .= '"'.&Apache::loncommon::csv_translate($seq->{'title'}).
1395: '","",';
1396: $Str2 .= '"score","total possible",';
1.54 matthew 1397: } elsif ($data eq 'scores' || $data eq 'tries') {
1.37 matthew 1398: $Str .= '"'.&Apache::loncommon::csv_translate($seq->{'title'}).
1399: '",';
1.53 matthew 1400: $Str .= '"",'x($seq->{'num_assess_parts'}-1+2);
1401: foreach my $res (@{$seq->{'contents'}}) {
1.54 matthew 1402: next if ($res->{'type'} ne 'assessment');
1.53 matthew 1403: foreach my $part (@{$res->{'parts'}}) {
1404: $Str2 .= '"'.&Apache::loncommon::csv_translate($res->{'title'}.', Part '.$part).'",';
1405: }
1406: }
1407: $Str2 .= '"score","total possible",';
1.37 matthew 1408: }
1409: }
1410: chop($Str);
1411: $Str .= "\n";
1412: print $outputfile $Str;
1413: if (defined($Str2)) {
1414: chop($Str2);
1415: $Str2 .= "\n";
1416: print $outputfile $Str2;
1417: }
1418: #
1419: # Initialize progress window
1420: my $studentcount = scalar(@Apache::lonstatistics::Students);
1421: %prog_state=&Apache::lonhtmlcommon::Create_PrgWin
1422: ($r,'CSV File Compilation Status',
1423: 'CSV File Compilation Progress', $studentcount);
1.31 matthew 1424: return;
1425: }
1426:
1427: sub csv_outputstudent {
1428: my ($r,$student) = @_;
1.54 matthew 1429: return if ($request_aborted);
1.37 matthew 1430: return if (! defined($outputfile));
1431: my $Str = '';
1432: #
1433: # Output student fields
1434: my @to_show = &get_student_fields_to_show();
1435: foreach my $field (@to_show) {
1436: $Str .= '"'.&Apache::loncommon::csv_translate($student->{$field}).'",';
1437: }
1438: #
1439: # Get student assessment data
1440: my %StudentsData;
1441: my @tmp = &Apache::loncoursedata::get_current_state($student->{'username'},
1442: $student->{'domain'},
1443: undef,
1444: $ENV{'request.course.id'});
1445: if ((scalar @tmp > 0) && ($tmp[0] !~ /^error:/)) {
1446: %StudentsData = @tmp;
1447: }
1448: #
1449: # Output performance data
1.40 matthew 1450: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
1.54 matthew 1451: my ($performance,$performance_length,$score,$seq_max,$rawdata);
1452: if ($base eq 'tries') {
1453: ($performance,$performance_length,$score,$seq_max,$rawdata) =
1454: &StudentTriesOnSequence($student,\%StudentsData,
1455: $seq,'no');
1456: } else {
1457: ($performance,$performance_length,$score,$seq_max,$rawdata) =
1458: &StudentPerformanceOnSequence($student,\%StudentsData,
1459: $seq,'no');
1460: }
1461: if ($data eq 'sum only' || $data eq 'parts correct') {
1.37 matthew 1462: $Str .= '"'.$score.'",';
1.54 matthew 1463: } elsif ($data eq 'sum and total' || $data eq 'parts correct total') {
1.37 matthew 1464: $Str .= '"'.$score.'","'.$seq_max.'",';
1.54 matthew 1465: } elsif ($data eq 'scores' || $data eq 'tries') {
1466: $Str .= '"'.join('","',(@$rawdata,$score,$seq_max)).'",';
1.37 matthew 1467: }
1468: }
1469: chop($Str);
1470: $Str .= "\n";
1471: print $outputfile $Str;
1472: #
1473: # Update the progress window
1474: &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,'last student');
1475: return;
1.31 matthew 1476: }
1477:
1478: sub csv_finish {
1479: my ($r) = @_;
1.54 matthew 1480: return if ($request_aborted);
1.37 matthew 1481: return if (! defined($outputfile));
1482: close($outputfile);
1483: #
1484: my $c = $r->connection();
1485: return if ($c->aborted());
1486: #
1487: # Close the progress window
1488: &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
1489: #
1490: # Tell the user where to get their csv file
1491: $r->print('<br />'.
1492: '<a href="'.$filename.'">Your csv file.</a>'."\n");
1493: $r->rflush();
1494: return;
1495:
1.31 matthew 1496: }
1.2 stredwic 1497:
1498: }
1499:
1.28 matthew 1500: #######################################################
1501: #######################################################
1502:
1.2 stredwic 1503: =pod
1504:
1.54 matthew 1505: =item &StudentTriesOnSequence()
1.2 stredwic 1506:
1.30 matthew 1507: Inputs:
1.2 stredwic 1508:
1509: =over 4
1510:
1.30 matthew 1511: =item $student
1.28 matthew 1512:
1.30 matthew 1513: =item $studentdata Hash ref to all student data
1.2 stredwic 1514:
1.30 matthew 1515: =item $seq Hash ref, the sequence we are working on
1.2 stredwic 1516:
1.30 matthew 1517: =item $links if defined we will output links to each resource.
1.2 stredwic 1518:
1.28 matthew 1519: =back
1.2 stredwic 1520:
1521: =cut
1.1 stredwic 1522:
1.28 matthew 1523: #######################################################
1524: #######################################################
1.54 matthew 1525: sub StudentTriesOnSequence {
1.32 matthew 1526: my ($student,$studentdata,$seq,$links) = @_;
1.31 matthew 1527: $links = 'no' if (! defined($links));
1.1 stredwic 1528: my $Str = '';
1.30 matthew 1529: my ($sum,$max) = (0,0);
1.51 matthew 1530: my $performance_length = 0;
1.54 matthew 1531: my @TriesData = ();
1532: my $tries;
1.30 matthew 1533: foreach my $resource (@{$seq->{'contents'}}) {
1534: next if ($resource->{'type'} ne 'assessment');
1535: my $resource_data = $studentdata->{$resource->{'symb'}};
1536: my $value = '';
1537: foreach my $partnum (@{$resource->{'parts'}}) {
1.54 matthew 1538: $tries = undef;
1.30 matthew 1539: $max++;
1.51 matthew 1540: $performance_length++;
1.30 matthew 1541: my $symbol = ' '; # default to space
1542: #
1.78 matthew 1543: my $awarded = 0;
1544: if (exists($resource_data->{'resource.'.$partnum.'.awarded'})) {
1545: $awarded = $resource_data->{'resource.'.$partnum.'.awarded'};
1546: $awarded = 0 if (! $awarded);
1547: }
1548: #
1549: my $status = '';
1.30 matthew 1550: if (exists($resource_data->{'resource.'.$partnum.'.solved'})) {
1.78 matthew 1551: $status = $resource_data->{'resource.'.$partnum.'.solved'};
1552: }
1553: #
1554: my $tries = 0;
1555: if(exists($resource_data->{'resource.'.$partnum.'.tries'})) {
1556: $tries = $resource_data->{'resource.'.$partnum.'.tries'};
1557: }
1558: #
1559: if ($awarded > 0) {
1560: # The student has gotten the problem correct to some degree
1561: if ($status eq 'excused') {
1562: $symbol = 'x';
1563: $max--;
1564: } elsif ($status eq 'correct_by_override') {
1.30 matthew 1565: $symbol = '+';
1566: $sum++;
1.78 matthew 1567: } elsif ($tries > 0) {
1.54 matthew 1568: if ($tries > 9) {
1.30 matthew 1569: $symbol = '*';
1.78 matthew 1570: } else {
1.54 matthew 1571: $symbol = $tries;
1.30 matthew 1572: }
1573: $sum++;
1574: } else {
1.78 matthew 1575: $symbol = '+';
1576: $sum++;
1.2 stredwic 1577: }
1.30 matthew 1578: } else {
1.78 matthew 1579: # The student has the problem incorrect or it is ungraded
1580: if ($status eq 'excused') {
1581: $symbol = 'x';
1582: $max--;
1583: } elsif ($status eq 'incorrect_by_override') {
1584: $symbol = '-';
1585: } elsif ($status eq 'ungraded_attempted') {
1586: $symbol = '#';
1587: } elsif ($status eq 'incorrect_attempted' ||
1588: $tries > 0) {
1.30 matthew 1589: $symbol = '.';
1590: } else {
1.78 matthew 1591: # Problem is wrong and has not been attempted.
1592: $symbol=' ';
1.18 matthew 1593: }
1.2 stredwic 1594: }
1.54 matthew 1595: #
1596: if (! defined($tries)) {
1597: $tries = $symbol;
1598: }
1599: push (@TriesData,$tries);
1.30 matthew 1600: #
1.47 matthew 1601: if ( ($links eq 'yes' && $symbol ne ' ') ||
1602: ($links eq 'all')) {
1.49 matthew 1603: if (length($symbol) > 1) {
1604: &Apache::lonnet::logthis('length of symbol "'.$symbol.'" > 1');
1605: }
1.30 matthew 1606: $symbol = '<a href="/adm/grades'.
1607: '?symb='.&Apache::lonnet::escape($resource->{'symb'}).
1608: '&student='.$student->{'username'}.
1.64 albertel 1609: '&userdom='.$student->{'domain'}.
1.30 matthew 1610: '&command=submission">'.$symbol.'</a>';
1611: }
1612: $value .= $symbol;
1.2 stredwic 1613: }
1.30 matthew 1614: $Str .= $value;
1.17 minaeibi 1615: }
1.51 matthew 1616: if ($seq->{'randompick'}) {
1617: $max = $seq->{'randompick'};
1618: }
1.54 matthew 1619: return ($Str,$performance_length,$sum,$max,\@TriesData);
1620: }
1621:
1622: #######################################################
1623: #######################################################
1624:
1625: =pod
1626:
1627: =item &StudentPerformanceOnSequence()
1628:
1629: Inputs:
1630:
1631: =over 4
1632:
1633: =item $student
1634:
1635: =item $studentdata Hash ref to all student data
1636:
1637: =item $seq Hash ref, the sequence we are working on
1638:
1639: =item $links if defined we will output links to each resource.
1640:
1641: =back
1642:
1643: =cut
1644:
1645: #######################################################
1646: #######################################################
1647: sub StudentPerformanceOnSequence {
1648: my ($student,$studentdata,$seq,$links) = @_;
1649: $links = 'no' if (! defined($links));
1650: my $Str = ''; # final result string
1651: my ($score,$max) = (0,0);
1652: my $performance_length = 0;
1653: my $symbol;
1654: my @ScoreData = ();
1655: my $partscore;
1656: foreach my $resource (@{$seq->{'contents'}}) {
1657: next if ($resource->{'type'} ne 'assessment');
1658: my $resource_data = $studentdata->{$resource->{'symb'}};
1659: foreach my $part (@{$resource->{'parts'}}) {
1660: $partscore = undef;
1661: my $weight = &Apache::lonnet::EXT('resource.'.$part.'.weight',
1662: $resource->{'symb'},
1663: $student->{'domain'},
1664: $student->{'username'},
1665: $student->{'section'});
1666: if (!defined($weight) || ($weight eq '')) {
1667: $weight=1;
1668: }
1669: #
1670: $max += $weight; # see the 'excused' branch below...
1671: $performance_length++; # one character per part
1672: $symbol = ' '; # default to space
1673: #
1674: my $awarded = 0;
1675: if (exists($resource_data->{'resource.'.$part.'.awarded'})) {
1676: $awarded = $resource_data->{'resource.'.$part.'.awarded'};
1.67 matthew 1677: $awarded = 0 if (! $awarded);
1.54 matthew 1678: }
1679: #
1680: $partscore = $weight*$awarded;
1681: $score += $partscore;
1.63 matthew 1682: $symbol = $partscore;
1.70 matthew 1683: if (abs($symbol - sprintf("%.0f",$symbol)) < 0.001) {
1684: $symbol = sprintf("%.0f",$symbol);
1685: }
1.54 matthew 1686: if (length($symbol) > 1) {
1687: $symbol = '*';
1688: }
1689: if (exists($resource_data->{'resource.'.$part.'.solved'})) {
1690: my $status = $resource_data->{'resource.'.$part.'.solved'};
1691: if ($status eq 'excused') {
1692: $symbol = 'x';
1693: $max -= $weight; # Do not count 'excused' problems.
1694: }
1695: } else {
1696: # Unsolved. Did they try?
1697: if (exists($resource_data->{'resource.'.$part.'.tries'})){
1698: $symbol = '.';
1699: } else {
1700: $symbol = ' ';
1701: }
1702: }
1703: #
1.60 matthew 1704: if (! defined($partscore)) {
1705: $partscore = $symbol;
1706: }
1707: push (@ScoreData,$partscore);
1708: #
1.54 matthew 1709: if ( ($links eq 'yes' && $symbol ne ' ') || ($links eq 'all')) {
1710: $symbol = '<a href="/adm/grades'.
1711: '?symb='.&Apache::lonnet::escape($resource->{'symb'}).
1712: '&student='.$student->{'username'}.
1.64 albertel 1713: '&userdom='.$student->{'domain'}.
1.54 matthew 1714: '&command=submission">'.$symbol.'</a>';
1715: }
1.60 matthew 1716: $Str .= $symbol;
1.54 matthew 1717: }
1718: }
1719: return ($Str,$performance_length,$score,$max,\@ScoreData);
1.1 stredwic 1720: }
1.23 minaeibi 1721:
1.28 matthew 1722: #######################################################
1723: #######################################################
1.23 minaeibi 1724:
1.2 stredwic 1725: =pod
1726:
1727: =item &CreateLegend()
1728:
1729: This function returns a formatted string containing the legend for the
1730: chart. The legend describes the symbols used to represent grades for
1731: problems.
1732:
1733: =cut
1734:
1.28 matthew 1735: #######################################################
1736: #######################################################
1.2 stredwic 1737: sub CreateLegend {
1738: my $Str = "<p><pre>".
1.13 minaeibi 1739: " 1 correct by student in 1 try\n".
1740: " 7 correct by student in 7 tries\n".
1.12 minaeibi 1741: " * correct by student in more than 9 tries\n".
1.20 minaeibi 1742: " + correct by hand grading or override\n".
1.12 minaeibi 1743: " - incorrect by override\n".
1744: " . incorrect attempted\n".
1745: " # ungraded attempted\n".
1.13 minaeibi 1746: " not attempted (blank field)\n".
1.12 minaeibi 1747: " x excused".
1.17 minaeibi 1748: "</pre><p>";
1.2 stredwic 1749: return $Str;
1750: }
1751:
1.28 matthew 1752: #######################################################
1753: #######################################################
1754:
1.30 matthew 1755: =pod
1.2 stredwic 1756:
1757: =back
1758:
1759: =cut
1760:
1.28 matthew 1761: #######################################################
1762: #######################################################
1.2 stredwic 1763:
1.28 matthew 1764: 1;
1.2 stredwic 1765:
1.1 stredwic 1766: __END__
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