1: # The LearningOnline Network with CAPA
2: # (Publication Handler
3: #
4: # $Id: lonstatistics.pm,v 1.53 2002/10/22 16:30:34 minaeibi Exp $
5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
28: # (Navigate problems for statistical reports
29: # YEAR=2001
30: # 5/5,7/9,7/25/1,8/11,9/13,9/26,10/5,10/9,10/22,10/26 Behrouz Minaei
31: # 11/1,11/4,11/16,12/14,12/16,12/18,12/20,12/31 Behrouz Minaei
32: # YEAR=2002
33: # 1/22,2/1,2/6,2/25,3/2,3/6,3/17,3/21,3/22,3/26,4/7,5/6 Behrouz Minaei
34: # 5/12,5/14,5/15,5/19,5/26,7/16,25/7,29/7 Behrouz Minaei
35: #
36: ###
37:
38: package Apache::lonstatistics;
39:
40: use strict;
41: use Apache::Constants qw(:common :http);
42: use Apache::lonnet();
43: use Apache::lonhomework;
44: use Apache::loncommon;
45: use Apache::loncoursedata;
46: use Apache::lonhtmlcommon;
47: use Apache::lonproblemanalysis;
48: use Apache::lonproblemstatistics;
49: use Apache::lonstudentassessment;
50: use Apache::lonpercentage;
51: use HTML::TokeParser;
52: use GDBM_File;
53:
54:
55: sub CheckFormElement {
56: my ($cache, $ENVName, $cacheName, $default)=@_;
57:
58: if(defined($ENV{'form.'.$ENVName})) {
59: $cache->{$cacheName} = $ENV{'form.'.$ENVName};
60: } elsif(!defined($cache->{$cacheName})) {
61: $cache->{$cacheName} = $default;
62: }
63:
64: return;
65: }
66:
67: sub ProcessFormData{
68: my ($cache)=@_;
69:
70: $cache->{'reportKey'} = 'false';
71:
72: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
73: ['sort','download',
74: 'reportSelected',
75: 'StudentAssessmentStudent',
76: 'ProblemStatisticsSort']);
77: &CheckFormElement($cache, 'Status', 'Status', 'Active');
78: &CheckFormElement($cache, 'postdata', 'reportSelected', 'Class list');
79: &CheckFormElement($cache, 'reportSelected', 'reportSelected',
80: 'Class list');
81: $cache->{'reportSelected'} =
82: &Apache::lonnet::unescape($cache->{'reportSelected'});
83: &CheckFormElement($cache, 'DownloadAll', 'DownloadAll', 'false');
84: &CheckFormElement($cache, 'sort', 'sort', 'fullname');
85: &CheckFormElement($cache, 'download', 'download', 'false');
86: &CheckFormElement($cache, 'StatisticsMaps',
87: 'StatisticsMaps', 'All Maps');
88: &CheckFormElement($cache, 'StatisticsProblemSelect',
89: 'StatisticsProblemSelect', 'All Problems');
90: &CheckFormElement($cache, 'StatisticsPartSelect',
91: 'StatisticsPartSelect', 'All Parts');
92: if(defined($ENV{'form.Section'})) {
93: my @sectionsSelected = (ref($ENV{'form.Section'}) ?
94: @{$ENV{'form.Section'}} :
95: ($ENV{'form.Section'}));
96: $cache->{'sectionsSelected'} = join(':', @sectionsSelected);
97: } elsif(!defined($cache->{'sectionsSelected'})) {
98: $cache->{'sectionsSelected'} = $cache->{'sectionList'};
99: }
100:
101: # student assessment
102: if(defined($ENV{'form.CreateStudentAssessment'}) ||
103: defined($ENV{'form.NextStudent'}) ||
104: defined($ENV{'form.PreviousStudent'})) {
105: $cache->{'reportSelected'} = 'Student Assessment';
106: }
107: if(defined($ENV{'form.NextStudent'})) {
108: $cache->{'StudentAssessmentMove'} = 'next';
109: } elsif(defined($ENV{'form.PreviousStudent'})) {
110: $cache->{'StudentAssessmentMove'} = 'previous';
111: } else {
112: $cache->{'StudentAssessmentMove'} = 'selected';
113: }
114: &CheckFormElement($cache, 'StudentAssessmentStudent',
115: 'StudentAssessmentStudent', 'All Students');
116: $cache->{'StudentAssessmentStudent'} =
117: &Apache::lonnet::unescape($cache->{'StudentAssessmentStudent'});
118: &CheckFormElement($cache, 'DefaultColumns', 'DefaultColumns', 'false');
119:
120: # Problem analysis
121: &CheckFormElement($cache, 'Interval', 'Interval', '1');
122:
123: # ProblemStatistcs
124: &CheckFormElement($cache, 'DisplayCSVFormat',
125: 'DisplayFormat', 'Display Table Format');
126: &CheckFormElement($cache, 'ProblemStatisticsAscend',
127: 'ProblemStatisticsAscend', 'Ascending');
128: &CheckFormElement($cache, 'ProblemStatisticsSort',
129: 'ProblemStatisticsSort', 'Homework Sets Order');
130: &CheckFormElement($cache, 'DisplayLegend', 'DisplayLegend',
131: 'Hide Legend');
132: &CheckFormElement($cache, 'SortProblems', 'SortProblems',
133: 'Sort Within Sequence');
134:
135: # Search only form elements
136: my @headingColumns=();
137: my @sequenceColumns=();
138: my $foundColumn = 0;
139: if(defined($ENV{'form.ReselectColumns'})) {
140: my @reselected = (ref($ENV{'form.ReselectColumns'}) ?
141: @{$ENV{'form.ReselectColumns'}}
142: : ($ENV{'form.ReselectColumns'}));
143: foreach (@reselected) {
144: if(/HeadingColumn/) {
145: push(@headingColumns, $_);
146: $foundColumn = 1;
147: } elsif(/SequenceColumn/) {
148: push(@sequenceColumns, $_);
149: $foundColumn = 1;
150: }
151: }
152: }
153:
154: $cache->{'reportKey'} = 'false';
155: if($cache->{'reportSelected'} eq 'Analyze') {
156: $cache->{'reportKey'} = 'Analyze';
157: } elsif($cache->{'reportSelected'} eq 'DoDiffGraph') {
158: $cache->{'reportKey'} = 'DoDiffGraph';
159: } elsif($cache->{'reportSelected'} eq 'PercentWrongGraph') {
160: $cache->{'reportKey'} = 'PercentWrongGraph';
161: }
162:
163: if(defined($ENV{'form.DoDiffGraph'})) {
164: $cache->{'reportSelected'} = 'DoDiffGraph';
165: $cache->{'reportKey'} = 'DoDiffGraph';
166: } elsif(defined($ENV{'form.PercentWrongGraph'})) {
167: $cache->{'reportSelected'} = 'PercentWrongGraph';
168: $cache->{'reportKey'} = 'PercentWrongGraph';
169: }
170:
171: foreach (keys(%ENV)) {
172: if(/form\.Analyze/) {
173: $cache->{'reportSelected'} = 'Analyze';
174: $cache->{'reportKey'} = 'Analyze';
175: my $data;
176: (undef, $data)=split(':::', $_);
177: $cache->{'AnalyzeInfo'}=$data;
178: } elsif(/form\.HeadingColumn/) {
179: my $value = $_;
180: $value =~ s/form\.//;
181: push(@headingColumns, $value);
182: $foundColumn=1;
183: } elsif(/form\.SequenceColumn/) {
184: my $value = $_;
185: $value =~ s/form\.//;
186: push(@sequenceColumns, $value);
187: $foundColumn=1;
188: }
189: }
190:
191: if($foundColumn) {
192: $cache->{'HeadingsFound'} = join(':', @headingColumns);
193: $cache->{'SequencesFound'} = join(':', @sequenceColumns);;
194: }
195: if(!defined($cache->{'HeadingsFound'}) ||
196: $cache->{'DefaultColumns'} ne 'false') {
197: $cache->{'HeadingsFound'}='HeadingColumnFull Name';
198: }
199: if(!defined($cache->{'SequencesFound'}) ||
200: $cache->{'DefaultColumns'} ne 'false') {
201: $cache->{'SequencesFound'}='All Sequences';
202: }
203: $cache->{'DefaultColumns'} = 'false';
204:
205: return;
206: }
207:
208: =pod
209:
210: =item &SortStudents()
211:
212: Determines which students to display and in which order. Which are
213: displayed are determined by their status(active/expired). The order
214: is determined by the sort button pressed (default to username). The
215: type of sorting is username, lastname, or section.
216:
217: =over 4
218:
219: Input: $students, $CacheData
220:
221: $students: A array pointer to a list of students (username:domain)
222:
223: $CacheData: A pointer to the hash tied to the cached data
224:
225: Output: \@order
226:
227: @order: An ordered list of students (username:domain)
228:
229: =back
230:
231: =cut
232:
233: sub SortStudents {
234: my ($cache)=@_;
235:
236: my @students = split(':::',$cache->{'NamesOfStudents'});
237: my @sorted1Students=();
238: foreach (@students) {
239: if($cache->{'Status'} eq 'Any' ||
240: $cache->{$_.':Status'} eq $cache->{'Status'}) {
241: push(@sorted1Students, $_);
242: }
243: }
244:
245: my $sortBy = '';
246: if(defined($cache->{'sort'})) {
247: $sortBy = ':'.$cache->{'sort'};
248: }
249: my @order = sort { $cache->{$a.$sortBy} cmp $cache->{$b.$sortBy} ||
250: $cache->{$a.':fullname'} cmp $cache->{$b.':fullname'} }
251: @sorted1Students;
252:
253: return \@order;
254: }
255:
256: =pod
257:
258: =item &SpaceColumns()
259:
260: Determines the width of all the columns in the chart. It is based on
261: the max of the data for that column and its header.
262:
263: =over 4
264:
265: Input: $students, $studentInformation, $headings, $ChartDB
266:
267: $students: An array pointer to a list of students (username:domain)
268:
269: $studentInformatin: The type of data for the student information. It is
270: used as part of the key in $CacheData.
271:
272: $headings: The name of the student information columns.
273:
274: $ChartDB: The name of the cache database which is opened for read/write.
275:
276: Output: None - All data stored in cache.
277:
278: =back
279:
280: =cut
281:
282: sub SpaceColumns {
283: my ($students,$studentInformation,$headings,$cache)=@_;
284:
285: # Initialize Lengths
286: for(my $index=0; $index<(scalar @$headings); $index++) {
287: my @titleLength=split(//,$headings->[$index]);
288: $cache->{$studentInformation->[$index].':columnWidth'}=
289: scalar @titleLength;
290: }
291:
292: foreach my $name (@$students) {
293: foreach (@$studentInformation) {
294: my @dataLength=split(//,$cache->{$name.':'.$_});
295: my $length=(scalar @dataLength);
296: if($length > $cache->{$_.':columnWidth'}) {
297: $cache->{$_.':columnWidth'}=$length;
298: }
299: }
300: }
301:
302: return;
303: }
304:
305: sub PrepareData {
306: my ($c, $cacheDB, $studentInformation, $headings,$r)=@_;
307:
308: # Test for access to the cache data
309: my $courseID=$ENV{'request.course.id'};
310: my $isRecalculate=0;
311: if(defined($ENV{'form.Recalculate'})) {
312: $isRecalculate=1;
313: }
314:
315: my $isCached = &Apache::loncoursedata::TestCacheData($cacheDB,
316: $isRecalculate);
317: if($isCached < 0) {
318: return "Unable to tie hash to db file.";
319: }
320:
321: # Download class list information if not using cached data
322: my %cache;
323: unless(tie(%cache,'GDBM_File',$cacheDB,&GDBM_WRCREAT(),0640)) {
324: return "Unable to tie hash to db file.";
325: }
326:
327: # if(!$isCached) {
328: my $processTopResourceMapReturn=
329: &Apache::loncoursedata::ProcessTopResourceMap(\%cache, $c);
330: if($processTopResourceMapReturn ne 'OK') {
331: untie(%cache);
332: return $processTopResourceMapReturn;
333: }
334: # }
335:
336: if($c->aborted()) {
337: untie(%cache);
338: return 'aborted';
339: }
340:
341: my $classlist=&Apache::loncoursedata::DownloadClasslist($courseID,
342: $cache{'ClasslistTimestamp'},
343: $c);
344: foreach (keys(%$classlist)) {
345: if(/^(con_lost|error|no_such_host)/i) {
346: untie(%cache);
347: return "Error getting student data.";
348: }
349: }
350:
351: if($c->aborted()) {
352: untie(%cache);
353: return 'aborted';
354: }
355:
356: # Active is a temporary solution, remember to change
357: Apache::loncoursedata::ProcessClasslist(\%cache,$classlist,$courseID,$c);
358: if($c->aborted()) {
359: untie(%cache);
360: return 'aborted';
361: }
362:
363: &ProcessFormData(\%cache);
364: my $students = &SortStudents(\%cache);
365: &SpaceColumns($students, $studentInformation, $headings, \%cache);
366: $cache{'updateTime:columnWidth'}=24;
367:
368: my $download = $cache{'download'};
369: my $downloadAll = $cache{'DownloadAll'};
370: my @allStudents=();
371: if($download ne 'false') {
372: $cache{'download'} = 'false';
373: } elsif($downloadAll ne 'false') {
374: $cache{'DownloadAll'} = 'false';
375: if($downloadAll eq 'sorted') {
376: @allStudents = @$students;
377: } else {
378: @allStudents = split(':::', $cache{'NamesOfStudents'});
379: }
380: }
381:
382: untie(%cache);
383:
384: if($download ne 'false') {
385: my @who = ($download);
386: if(&Apache::loncoursedata::DownloadStudentCourseData(\@who, 'false',
387: $cacheDB, 'true',
388: 'false', $courseID,
389: $r, $c) ne 'OK') {
390: return 'Stop at download individual';
391: }
392: } elsif($downloadAll ne 'false') {
393: if(&Apache::loncoursedata::DownloadStudentCourseData(\@allStudents,
394: 'false',
395: $cacheDB, 'true',
396: 'true', $courseID,
397: $r, $c) ne 'OK') {
398: return 'Stop at download all';
399: }
400: }
401:
402: return ('OK', $students);
403: }
404:
405: sub BuildClasslist {
406: my ($cacheDB,$students,$studentInformation,$headings,$r)=@_;
407:
408: my %cache;
409: unless(tie(%cache,'GDBM_File',$cacheDB,&GDBM_READER(),0640)) {
410: return '<html><body>Unable to tie database.</body></html>';
411: }
412:
413: my $Str='';
414: $Str .= '<table border="0"><tr><td bgcolor="#777777">'."\n";
415: $Str .= '<table border="0" cellpadding="3"><tr bgcolor="#e6ffff">'."\n";
416:
417: my $displayString = '<td align="left"><a href="/adm/statistics?';
418: $displayString .= 'sort=LINKDATA">DISPLAYDATA </a></td>'."\n";
419: $Str .= &Apache::lonhtmlcommon::CreateHeadings(\%cache,
420: $studentInformation,
421: $headings, $displayString);
422: $Str .= '</tr>'."\n";
423:
424: my $alternate=0;
425: foreach (@$students) {
426: my ($username, $domain) = split(':', $_);
427: if($alternate) {
428: $Str .= '<tr bgcolor="#ffffe6">';
429: } else {
430: $Str .= '<tr bgcolor="#ffffc6">';
431: }
432: $alternate = ($alternate + 1) % 2;
433: foreach my $data (@$studentInformation) {
434: $Str .= '<td>';
435: if($data eq 'fullname') {
436: $Str .= '<a href="/adm/statistics?reportSelected=';
437: $Str .= &Apache::lonnet::escape('Student Assessment');
438: $Str .= '&StudentAssessmentStudent=';
439: $Str .= &Apache::lonnet::escape($cache{$_.':'.$data}).'">';
440: $Str .= $cache{$_.':'.$data}.' ';
441: $Str .= '</a>';
442: } elsif($data eq 'updateTime') {
443: $Str .= '<a href="/adm/statistics?reportSelected=';
444: $Str .= &Apache::lonnet::escape('Class list');
445: $Str .= '&download='.$_.'">';
446: $Str .= $cache{$_.':'.$data}.' ';
447: $Str .= ' </a>';
448: } else {
449: $Str .= $cache{$_.':'.$data}.' ';
450: }
451:
452: $Str .= '</td>'."\n";
453: }
454: }
455:
456: $Str .= '</tr>'."\n";
457: $Str .= '</table></td></tr></table>'."\n";
458: $r->print($Str);
459: $r->rflush();
460:
461: untie(%cache);
462:
463: return;
464: }
465:
466: sub CreateMainMenu {
467: my ($status, $reports)=@_;
468:
469: my $Str = '';
470:
471: $Str .= '<table border="0"><tbody><tr>'."\n";
472: $Str .= '<td></td><td></td>'."\n";
473: $Str .= '<td align="center"><b>Analysis Reports:</b></td>'."\n";
474: $Str .= '<td align="center"><b>Student Status:</b></td></tr>'."\n";
475: $Str .= '<tr>'."\n";
476: $Str .= '<td align="center"><input type="submit" name="Refresh" ';
477: $Str .= 'value="Refresh" /></td>'."\n";
478: $Str .= '<td align="center"><input type="submit" name="DownloadAll" ';
479: $Str .= 'value="Update All Student Data" /></td>'."\n";
480: $Str .= '<td align="center">';
481: $Str .= '<select name="reportSelected" onchange="document.';
482: $Str .= 'Statistics.submit()">'."\n";
483:
484: foreach (sort(keys(%$reports))) {
485: next if($_ eq 'reportSelected');
486: $Str .= '<option name="'.$_.'"';
487: if($reports->{'reportSelected'} eq $reports->{$_}) {
488: $Str .= ' selected=""';
489: }
490: $Str .= '>'.$reports->{$_}.'</option>'."\n";
491: }
492: $Str .= '</select></td>'."\n";
493:
494: $Str .= '<td align="center">';
495: $Str .= &Apache::lonhtmlcommon::StatusOptions($status, 'Statistics');
496: $Str .= '</td>'."\n";
497:
498: $Str .= '</tr></tbody></table>'."\n";
499: $Str .= '<hr>'."\n";
500:
501: return $Str;
502: }
503:
504: sub BuildStatistics {
505: my ($r)=@_;
506:
507: my $c = $r->connection;
508: my @studentInformation=('fullname','section','id','domain','username',
509: 'updateTime');
510: my @headings=('Full Name', 'Section', 'PID', 'Domain', 'User Name',
511: 'Last Updated');
512: my $spacing = ' ';
513:
514: my %reports = ('classlist' => 'Class list',
515: 'problem_statistics' => 'Problem Statistics',
516: 'student_assessment' => 'Student Assessment',
517: 'percentage' => 'Percentage Graphs',
518: # 'activitylog' => 'Activity Log',
519: 'reportSelected' => 'Class list');
520:
521: my %cache;
522: my $courseID=$ENV{'request.course.id'};
523: my $cacheDB = "/home/httpd/perl/tmp/$ENV{'user.name'}".
524: "_$ENV{'user.domain'}_$courseID\_statistics.db";
525:
526: $r->print(&Apache::lonhtmlcommon::Title('Course Statistics and Charts'));
527:
528: my ($returnValue, $students) = &PrepareData($c, $cacheDB,
529: \@studentInformation,
530: \@headings,$r);
531: if($returnValue ne 'OK') {
532: $r->print($returnValue."\n".'</body></html>');
533: return OK;
534: }
535: if(!$c->aborted()) {
536: &Apache::loncoursedata::CheckForResidualDownload($cacheDB,
537: 'true', 'true',
538: $courseID,
539: $r, $c);
540: }
541:
542: my $GoToPage;
543: if(tie(%cache,'GDBM_File',$cacheDB,&GDBM_READER(),0640)) {
544: $GoToPage = $cache{'reportSelected'};
545: $reports{'reportSelected'} = $cache{'reportSelected'};
546: if(defined($cache{'reportKey'}) &&
547: !exists($reports{$cache{'reportKey'}}) &&
548: $cache{'reportKey'} ne 'false') {
549: $reports{$cache{'reportKey'}} = $cache{'reportSelected'};
550: }
551:
552: if(defined($cache{'OptionResponses'})) {
553: $reports{'problem_analysis'} = 'Option Response Analysis';
554: }
555:
556: $r->print('<form name="Statistics" ');
557: $r->print('method="post" action="/adm/statistics">');
558: $r->print(&CreateMainMenu($cache{'Status'}, \%reports));
559: $r->rflush();
560: untie(%cache);
561: } else {
562: $r->print('<html><body>Unable to tie database.</body></html>');
563: return OK;
564: }
565:
566: if($GoToPage eq 'Activity Log') {
567: &Apache::lonproblemstatistics::Activity();
568: } elsif($GoToPage eq 'Problem Statistics') {
569: &Apache::lonproblemstatistics::BuildProblemStatisticsPage($cacheDB,
570: $students,
571: $courseID,
572: $c,$r);
573: } elsif($GoToPage eq 'Option Response Analysis') {
574: &Apache::lonproblemanalysis::BuildProblemAnalysisPage($cacheDB, $r);
575: } elsif($GoToPage eq 'Student Assessment') {
576: &Apache::lonstudentassessment::BuildStudentAssessmentPage($cacheDB,
577: $students,
578: $courseID,
579: 'Statistics',
580: \@headings,
581: $spacing,
582: \@studentInformation,
583: $r, $c);
584: } elsif($GoToPage eq 'Analyze') {
585: &Apache::lonproblemanalysis::BuildAnalyzePage($cacheDB, $students,
586: $courseID, $r);
587: } elsif($GoToPage eq 'DoDiffGraph' || $GoToPage eq 'PercentWrongGraph') {
588: my $courseDescription = $ENV{'course.'.$courseID.'.description'};
589: $courseDescription =~ s/\ /"_"/eg;
590: &Apache::lonproblemstatistics::BuildGraphicChart($GoToPage, $cacheDB,
591: $courseDescription,
592: $students, $courseID,
593: $r, $c);
594: } elsif($GoToPage eq 'Class list') {
595: &BuildClasslist($cacheDB, $students, \@studentInformation,
596: \@headings, $r);
597: } elsif($GoToPage eq 'Percentage Graphs') {
598: &Apache::lonpercentage::BuildPercentageGraph($cacheDB, $students,
599: $courseID, $c, $r);
600: }
601:
602: $r->print('</form>'."\n");
603: $r->print("\n".'</body>'."\n".'</html>');
604: $r->rflush();
605:
606: return OK;
607: }
608:
609: # ================================================================ Main Handler
610:
611: sub handler {
612: my $r=shift;
613:
614: # $jr = $r;
615:
616: my $loaderror=&Apache::lonnet::overloaderror($r);
617: if ($loaderror) { return $loaderror; }
618: $loaderror=
619: &Apache::lonnet::overloaderror($r,
620: $ENV{'course.'.$ENV{'request.course.id'}.'.home'});
621: if ($loaderror) { return $loaderror; }
622:
623: unless(&Apache::lonnet::allowed('vgr',$ENV{'request.course.id'})) {
624: $ENV{'user.error.msg'}=
625: $r->uri.":vgr:0:0:Cannot view grades for complete course";
626: return HTTP_NOT_ACCEPTABLE;
627: }
628:
629: # Set document type for header only
630: if($r->header_only) {
631: if ($ENV{'browser.mathml'}) {
632: $r->content_type('text/xml');
633: } else {
634: $r->content_type('text/html');
635: }
636: &Apache::loncommon::no_cache($r);
637: $r->send_http_header;
638: return OK;
639: }
640:
641: unless($ENV{'request.course.fn'}) {
642: my $requrl=$r->uri;
643: $ENV{'user.error.msg'}="$requrl:bre:0:0:Course not initialized";
644: return HTTP_NOT_ACCEPTABLE;
645: }
646:
647: $r->content_type('text/html');
648: $r->send_http_header;
649:
650: &BuildStatistics($r);
651:
652: return OK;
653: }
654: 1;
655: __END__
656:
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