1: # The LearningOnline Network with CAPA
2: # Metadata display handler
3: #
4: # $Id: lonmeta.pm,v 1.122 2005/11/02 01:02:31 banghart 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:
29: package Apache::lonmeta;
30:
31: use strict;
32: use LONCAPA::lonmetadata();
33: use Apache::Constants qw(:common);
34: use Apache::lonnet;
35: use Apache::loncommon();
36: use Apache::lonhtmlcommon();
37: use Apache::lonmsg;
38: use Apache::lonpublisher;
39: use Apache::lonlocal;
40: use Apache::lonmysql;
41: use Apache::lonmsg;
42:
43:
44: ############################################################
45: ############################################################
46: ##
47: ## &get_dynamic_metadata_from_sql($url)
48: ##
49: ## Queries sql database for dynamic metdata
50: ## Returns a hash of hashes, with keys of urls which match $url
51: ## Returned fields are given below.
52: ##
53: ## Examples:
54: ##
55: ## %DynamicMetadata = &Apache::lonmeta::get_dynmaic_metadata_from_sql
56: ## ('/res/msu/korte/');
57: ##
58: ## $DynamicMetadata{'/res/msu/korte/example.problem'}->{$field}
59: ##
60: ############################################################
61: ############################################################
62: sub get_dynamic_metadata_from_sql {
63: my ($url) = shift();
64: my ($authordom,$author)=($url=~m:^/res/(\w+)/(\w+)/:);
65: if (! defined($authordom)) {
66: $authordom = shift();
67: }
68: if (! defined($author)) {
69: $author = shift();
70: }
71: if (! defined($authordom) || ! defined($author)) {
72: return ();
73: }
74: my @Fields = ('url','count','course',
75: 'goto','goto_list',
76: 'comefrom','comefrom_list',
77: 'sequsage','sequsage_list',
78: 'stdno','stdno_list',
79: 'dependencies',
80: 'avetries','avetries_list',
81: 'difficulty','difficulty_list',
82: 'disc','disc_list',
83: 'clear','technical','correct',
84: 'helpful','depth');
85: #
86: my $query = 'SELECT '.join(',',@Fields).
87: ' FROM metadata WHERE url LIKE "'.$url.'%"';
88: my $server = &Apache::lonnet::homeserver($author,$authordom);
89: my $reply = &Apache::lonnet::metadata_query($query,undef,undef,
90: ,[$server]);
91: return () if (! defined($reply) || ref($reply) ne 'HASH');
92: my $filename = $reply->{$server};
93: if (! defined($filename) || $filename =~ /^error/) {
94: return ();
95: }
96: my $max_time = time + 10; # wait 10 seconds for results at most
97: my %ReturnHash;
98: #
99: # Look for results
100: my $finished = 0;
101: while (! $finished && time < $max_time) {
102: my $datafile=$Apache::lonnet::perlvar{'lonDaemons'}.'/tmp/'.$filename;
103: if (! -e "$datafile.end") { next; }
104: my $fh;
105: if (!($fh=Apache::File->new($datafile))) { next; }
106: while (my $result = <$fh>) {
107: chomp($result);
108: next if (! $result);
109: my @Data =
110: map {
111: &Apache::lonnet::unescape($_);
112: } split(',',$result);
113: my $url = $Data[0];
114: for (my $i=0;$i<=$#Fields;$i++) {
115: $ReturnHash{$url}->{$Fields[$i]}=$Data[$i];
116: }
117: }
118: $finished = 1;
119: }
120: #
121: return %ReturnHash;
122: }
123:
124:
125: # Fetch and evaluate dynamic metadata
126: sub dynamicmeta {
127: my $url=&Apache::lonnet::declutter(shift);
128: $url=~s/\.meta$//;
129: my ($adomain,$aauthor)=($url=~/^(\w+)\/(\w+)\//);
130: my $regexp=$url;
131: $regexp=~s/(\W)/\\$1/g;
132: $regexp='___'.$regexp.'___';
133: my %evaldata=&Apache::lonnet::dump('nohist_resevaldata',$adomain,
134: $aauthor,$regexp);
135: my %DynamicData = &LONCAPA::lonmetadata::process_reseval_data(\%evaldata);
136: my %Data = &LONCAPA::lonmetadata::process_dynamic_metadata($url,
137: \%DynamicData);
138: #
139: # Deal with 'count' separately
140: $Data{'count'} = &access_count($url,$aauthor,$adomain);
141: #
142: # Debugging code I will probably need later
143: if (0) {
144: &Apache::lonnet::logthis('Dynamic Metadata');
145: while(my($k,$v)=each(%Data)){
146: &Apache::lonnet::logthis(' "'.$k.'"=>"'.$v.'"');
147: }
148: &Apache::lonnet::logthis('-------------------');
149: }
150: return %Data;
151: }
152:
153: sub access_count {
154: my ($src,$author,$adomain) = @_;
155: my %countdata=&Apache::lonnet::dump('nohist_accesscount',$adomain,
156: $author,$src);
157: if (! exists($countdata{$src})) {
158: return &mt('Not Available');
159: } else {
160: return $countdata{$src};
161: }
162: }
163:
164: # Try to make an alt tag if there is none
165: sub alttag {
166: my ($base,$src)=@_;
167: my $fullpath=&Apache::lonnet::hreflocation($base,$src);
168: my $alttag=&Apache::lonnet::metadata($fullpath,'title').' '.
169: &Apache::lonnet::metadata($fullpath,'subject').' '.
170: &Apache::lonnet::metadata($fullpath,'abstract');
171: $alttag=~s/\s+/ /gs;
172: $alttag=~s/\"//gs;
173: $alttag=~s/\'//gs;
174: $alttag=~s/\s+$//gs;
175: $alttag=~s/^\s+//gs;
176: if ($alttag) {
177: return $alttag;
178: } else {
179: return &mt('No information available');
180: }
181: }
182:
183: # Author display
184: sub authordisplay {
185: my ($aname,$adom)=@_;
186: return &Apache::loncommon::aboutmewrapper
187: (&Apache::loncommon::plainname($aname,$adom),
188: $aname,$adom,'preview').' <tt>['.$aname.'@'.$adom.']</tt>';
189: }
190:
191: # Pretty display
192: sub evalgraph {
193: my $value=shift;
194: if (! $value) {
195: return '';
196: }
197: my $val=int($value*10.+0.5)-10;
198: my $output='<table border="0" cellpadding="0" cellspacing="0"><tr>';
199: if ($val>=20) {
200: $output.='<td width="20" bgcolor="#555555">  </td>';
201: } else {
202: $output.='<td width="'.($val).'" bgcolor="#555555"> </td>'.
203: '<td width="'.(20-$val).'" bgcolor="#FF3333"> </td>';
204: }
205: $output.='<td bgcolor="#FFFF33"> </td>';
206: if ($val>20) {
207: $output.='<td width="'.($val-20).'" bgcolor="#33FF33"> </td>'.
208: '<td width="'.(40-$val).'" bgcolor="#555555"> </td>';
209: } else {
210: $output.='<td width="20" bgcolor="#555555">  </td>';
211: }
212: $output.='<td> ('.sprintf("%5.2f",$value).') </td></tr></table>';
213: return $output;
214: }
215:
216: sub diffgraph {
217: my $value=shift;
218: if (! $value) {
219: return '';
220: }
221: my $val=int(40.0*$value+0.5);
222: my @colors=('#FF9933','#EEAA33','#DDBB33','#CCCC33',
223: '#BBDD33','#CCCC33','#DDBB33','#EEAA33');
224: my $output='<table border="0" cellpadding="0" cellspacing="0"><tr>';
225: for (my $i=0;$i<8;$i++) {
226: if ($val>$i*5) {
227: $output.='<td width="5" bgcolor="'.$colors[$i].'"> </td>';
228: } else {
229: $output.='<td width="5" bgcolor="#555555"> </td>';
230: }
231: }
232: $output.='<td> ('.sprintf("%3.2f",$value).') </td></tr></table>';
233: return $output;
234: }
235:
236:
237: # The field names
238: sub fieldnames {
239: my $file_type=shift;
240: my %fields =
241: ('title' => 'Title',
242: 'author' =>'Author(s)',
243: 'authorspace' => 'Author Space',
244: 'modifyinguser' => 'Last Modifying User',
245: 'subject' => 'Subject',
246: 'keywords' => 'Keyword(s)',
247: 'notes' => 'Notes',
248: 'abstract' => 'Abstract',
249: 'lowestgradelevel' => 'Lowest Grade Level',
250: 'highestgradelevel' => 'Highest Grade Level',
251: 'courserestricted' => 'Course Restricting Metadata');
252:
253: if (! defined($file_type) || $file_type ne 'portfolio') {
254: %fields =
255: (%fields,
256: 'domain' => 'Domain',
257: 'standards' => 'Standards',
258: 'mime' => 'MIME Type',
259: 'language' => 'Language',
260: 'creationdate' => 'Creation Date',
261: 'lastrevisiondate' => 'Last Revision Date',
262: 'owner' => 'Publisher/Owner',
263: 'copyright' => 'Copyright/Distribution',
264: 'customdistributionfile' => 'Custom Distribution File',
265: 'sourceavail' => 'Source Available',
266: 'sourcerights' => 'Source Custom Distribution File',
267: 'obsolete' => 'Obsolete',
268: 'obsoletereplacement' => 'Suggested Replacement for Obsolete File',
269: 'count' => 'Network-wide number of accesses (hits)',
270: 'course' => 'Network-wide number of courses using resource',
271: 'course_list' => 'Network-wide courses using resource',
272: 'sequsage' => 'Number of resources using or importing resource',
273: 'sequsage_list' => 'Resources using or importing resource',
274: 'goto' => 'Number of resources that follow this resource in maps',
275: 'goto_list' => 'Resources that follow this resource in maps',
276: 'comefrom' => 'Number of resources that lead up to this resource in maps',
277: 'comefrom_list' => 'Resources that lead up to this resource in maps',
278: 'clear' => 'Material presented in clear way',
279: 'depth' => 'Material covered with sufficient depth',
280: 'helpful' => 'Material is helpful',
281: 'correct' => 'Material appears to be correct',
282: 'technical' => 'Resource is technically correct',
283: 'avetries' => 'Average number of tries till solved',
284: 'stdno' => 'Total number of students who have worked on this problem',
285: 'difficulty' => 'Degree of difficulty',
286: 'disc' => 'Degree of discrimination',
287: 'dependencies' => 'Resources used by this resource',
288: );
289: }
290: return &Apache::lonlocal::texthash(%fields);
291: }
292:
293: sub select_course {
294: my ($r)=@_;
295: my %courses;
296: foreach my $key (keys (%env)) {
297: if ($key =~ m/\.metadata\./) {
298: $key =~ m/^course\.(.+)(\.metadata.+$)/;
299: my $course = $1;
300: my $coursekey = 'course.'.$course.'.description';
301: my $value = $env{$coursekey};
302: $courses{$coursekey} = $value;
303: }
304: }
305: $r->print('<h3>Course Related Meta-Data</h3><br />');
306: $r->print('<form action="" method="post">');
307: $r->print('Select your test course<br />');
308: $r->print('<select name="metacourse" >');
309: my $meta_not_found = 1;
310: foreach my $key (keys (%courses)) {
311: if ($meta_not_found) {
312: undef($meta_not_found);
313: $r->print('<h3>Portfolio Meta-Data</h3><br />');
314: $r->print('<form action="" method="post">');
315: $r->print('Select your course<br />');
316: $r->print('<select name="metacourse" >');
317: }
318: $key =~ m/(^.+)\.description$/;
319: $r->print('<option value="'.$1.'">');
320: $r->print($courses{$key});
321: $r->print('</option>');
322: }
323: unless ($meta_not_found) {
324: $r->print('</select><br />');
325: $r->print('<input type="submit" value="Assign Portfolio Metadata" />');
326: $r->print('</form>');
327: }
328: return 'ok';
329: }
330: # Pretty printing of metadata field
331:
332: sub prettyprint {
333: my ($type,$value,$target,$prefix,$form,$noformat)=@_;
334: # $target,$prefix,$form are optional and for filecrumbs only
335: if (! defined($value)) {
336: return ' ';
337: }
338: # Title
339: if ($type eq 'title') {
340: return '<font size="+1" face="arial">'.$value.'</font>';
341: }
342: # Dates
343: if (($type eq 'creationdate') ||
344: ($type eq 'lastrevisiondate')) {
345: return ($value?&Apache::lonlocal::locallocaltime(
346: &Apache::lonmysql::unsqltime($value)):
347: &mt('not available'));
348: }
349: # Language
350: if ($type eq 'language') {
351: return &Apache::loncommon::languagedescription($value);
352: }
353: # Copyright
354: if ($type eq 'copyright') {
355: return &Apache::loncommon::copyrightdescription($value);
356: }
357: # Copyright
358: if ($type eq 'sourceavail') {
359: return &Apache::loncommon::source_copyrightdescription($value);
360: }
361: # MIME
362: if ($type eq 'mime') {
363: return '<img src="'.&Apache::loncommon::icon($value).'" /> '.
364: &Apache::loncommon::filedescription($value);
365: }
366: # Person
367: if (($type eq 'author') ||
368: ($type eq 'owner') ||
369: ($type eq 'modifyinguser') ||
370: ($type eq 'authorspace')) {
371: $value=~s/(\w+)(\:|\@)(\w+)/&authordisplay($1,$3)/gse;
372: return $value;
373: }
374: # Gradelevel
375: if (($type eq 'lowestgradelevel') ||
376: ($type eq 'highestgradelevel')) {
377: return &Apache::loncommon::gradeleveldescription($value);
378: }
379: # Only for advance users below
380: if (! $env{'user.adv'}) {
381: return '<i>- '.&mt('not displayed').' -</i>';
382: }
383: # File
384: if (($type eq 'customdistributionfile') ||
385: ($type eq 'obsoletereplacement') ||
386: ($type eq 'goto_list') ||
387: ($type eq 'comefrom_list') ||
388: ($type eq 'sequsage_list') ||
389: ($type eq 'dependencies')) {
390: return '<ul><font size="-1">'.join("\n",map {
391: my $url = &Apache::lonnet::clutter($_);
392: my $title = &Apache::lonnet::gettitle($url);
393: if ($title eq '') {
394: $title = 'Untitled';
395: if ($url =~ /\.sequence$/) {
396: $title .= ' Sequence';
397: } elsif ($url =~ /\.page$/) {
398: $title .= ' Page';
399: } elsif ($url =~ /\.problem$/) {
400: $title .= ' Problem';
401: } elsif ($url =~ /\.html$/) {
402: $title .= ' HTML document';
403: } elsif ($url =~ m:/syllabus$:) {
404: $title .= ' Syllabus';
405: }
406: }
407: $_ = '<li>'.$title.' '.
408: &Apache::lonhtmlcommon::crumbs($url,$target,$prefix,$form,'-1',$noformat).
409: '</li>'
410: } split(/\s*\,\s*/,$value)).'</ul></font>';
411: }
412: # Evaluations
413: if (($type eq 'clear') ||
414: ($type eq 'depth') ||
415: ($type eq 'helpful') ||
416: ($type eq 'correct') ||
417: ($type eq 'technical')) {
418: return &evalgraph($value);
419: }
420: # Difficulty
421: if ($type eq 'difficulty' || $type eq 'disc') {
422: return &diffgraph($value);
423: }
424: # List of courses
425: if ($type=~/\_list/) {
426: my @Courses = split(/\s*\,\s*/,$value);
427: my $Str;
428: foreach my $course (@Courses) {
429: my %courseinfo = &Apache::lonnet::coursedescription($course);
430: if (! exists($courseinfo{'num'}) || $courseinfo{'num'} eq '') {
431: next;
432: }
433: if ($Str ne '') { $Str .= '<br />'; }
434: $Str .= '<a href="/public/'.$courseinfo{'domain'}.'/'.
435: $courseinfo{'num'}.'/syllabus" target="preview">'.
436: $courseinfo{'description'}.'</a>';
437: }
438: return $Str;
439: }
440: # No pretty print found
441: return $value;
442: }
443:
444: # Pretty input of metadata field
445: sub direct {
446: return shift;
447: }
448:
449: sub selectbox {
450: my ($name,$value,$functionref,@idlist)=@_;
451: if (! defined($functionref)) {
452: $functionref=\&direct;
453: }
454: my $selout='<select name="'.$name.'">';
455: foreach (@idlist) {
456: $selout.='<option value=\''.$_.'\'';
457: if ($_ eq $value) {
458: $selout.=' selected>'.&{$functionref}($_).'</option>';
459: }
460: else {$selout.='>'.&{$functionref}($_).'</option>';}
461: }
462: return $selout.'</select>';
463: }
464:
465: sub relatedfield {
466: my ($show,$relatedsearchflag,$relatedsep,$fieldname,$relatedvalue)=@_;
467: if (! $relatedsearchflag) {
468: return '';
469: }
470: if (! defined($relatedsep)) {
471: $relatedsep=' ';
472: }
473: if (! $show) {
474: return $relatedsep.' ';
475: }
476: return $relatedsep.'<input type="checkbox" name="'.$fieldname.'_related"'.
477: ($relatedvalue?' checked="1"':'').' />';
478: }
479:
480: sub prettyinput {
481: my ($type,$value,$fieldname,$formname,
482: $relatedsearchflag,$relatedsep,$relatedvalue,$size,$course_key)=@_;
483: if (! defined($size)) {
484: $size = 80;
485: }
486: if (defined($course_key)) {
487: my $stu_add;
488: my $only_one;
489: my $values = $env{$course_key.'.metadata.'.$_.'.values'};
490: if ($env{$course_key.'.metadata.'.$_.'.options'} =~ m/stuadd/) {
491: $stu_add = 'true';
492: }
493: if ($env{$course_key.'.metadata.'.$_.'.options'} =~ m/onlyone/) {
494: $only_one = 'true';
495: }
496: if ($type eq 'author') {
497: }
498: if ($type eq 'courserestricted') {
499: return ('<input type="hidden" name="new_courserestricted" value="'.$course_key.'" />');
500: }
501: if ($type eq 'authorspace') {
502: }
503: if ($type eq 'modifyinguser') {
504: }
505: if ($type eq 'subject') {
506: }
507: if ($type eq 'keywords') {
508: my %hash;
509: my $def;
510: foreach (split(/,/,$values)) {
511: $_ =~ s/^\s+//;
512: $hash{$_} = $_;
513: }
514: if ($only_one) {
515: return(&Apache::loncommon::select_form($def,'new_keywords',%hash));
516: } else {
517: return(&Apache::loncommon::multiple_select_form('new_keywords',$value,undef,%hash));
518: }
519: }
520: if ($type eq 'notes') {
521: }
522: if ($type eq 'abstract') {
523: }
524:
525: if (($type eq 'lowestgradelevel') ||
526: ($type eq 'highestgradelevel')) {
527: return &Apache::loncommon::select_level_form($value,$fieldname).
528: &relatedfield(0,$relatedsearchflag,$relatedsep);
529: }
530: return();
531: }
532: # Language
533: if ($type eq 'language') {
534: return &selectbox($fieldname,
535: $value,
536: \&Apache::loncommon::languagedescription,
537: (&Apache::loncommon::languageids)).
538: &relatedfield(0,$relatedsearchflag,$relatedsep);
539: }
540: # Copyright
541: if ($type eq 'copyright') {
542: return &selectbox($fieldname,
543: $value,
544: \&Apache::loncommon::copyrightdescription,
545: (&Apache::loncommon::copyrightids)).
546: &relatedfield(0,$relatedsearchflag,$relatedsep);
547: }
548: # Source Copyright
549: if ($type eq 'sourceavail') {
550: return &selectbox($fieldname,
551: $value,
552: \&Apache::loncommon::source_copyrightdescription,
553: (&Apache::loncommon::source_copyrightids)).
554: &relatedfield(0,$relatedsearchflag,$relatedsep);
555: }
556: # Gradelevels
557: if (($type eq 'lowestgradelevel') ||
558: ($type eq 'highestgradelevel')) {
559: return &Apache::loncommon::select_level_form($value,$fieldname).
560: &relatedfield(0,$relatedsearchflag,$relatedsep);
561: }
562: # Obsolete
563: if ($type eq 'obsolete') {
564: return '<input type="checkbox" name="'.$fieldname.'"'.
565: ($value?' checked="1"':'').' />'.
566: &relatedfield(0,$relatedsearchflag,$relatedsep);
567: }
568: # Obsolete replacement file
569: if ($type eq 'obsoletereplacement') {
570: return '<input type="text" name="'.$fieldname.
571: '" size="60" value="'.$value.'" /><a href="javascript:openbrowser'.
572: "('".$formname."','".$fieldname."'".
573: ",'')\">".&mt('Select').'</a>'.
574: &relatedfield(0,$relatedsearchflag,$relatedsep);
575: }
576: # Customdistribution file
577: if ($type eq 'customdistributionfile') {
578: return '<input type="text" name="'.$fieldname.
579: '" size="60" value="'.$value.'" /><a href="javascript:openbrowser'.
580: "('".$formname."','".$fieldname."'".
581: ",'rights')\">".&mt('Select').'</a>'.
582: &relatedfield(0,$relatedsearchflag,$relatedsep);
583: }
584: # Source Customdistribution file
585: if ($type eq 'sourcerights') {
586: return '<input type="text" name="'.$fieldname.
587: '" size="60" value="'.$value.'" /><a href="javascript:openbrowser'.
588: "('".$formname."','".$fieldname."'".
589: ",'rights')\">".&mt('Select').'</a>'.
590: &relatedfield(0,$relatedsearchflag,$relatedsep);
591: }
592: # Dates
593: if (($type eq 'creationdate') ||
594: ($type eq 'lastrevisiondate')) {
595: return
596: &Apache::lonhtmlcommon::date_setter($formname,$fieldname,$value).
597: &relatedfield(0,$relatedsearchflag,$relatedsep);
598: }
599: # No pretty input found
600: $value=~s/^\s+//gs;
601: $value=~s/\s+$//gs;
602: $value=~s/\s+/ /gs;
603: $value=~s/\"/\"\;/gs;
604: return
605: '<input type="text" name="'.$fieldname.'" size="'.$size.'" '.
606: 'value="'.$value.'" />'.
607: &relatedfield(1,$relatedsearchflag,$relatedsep,$fieldname,
608: $relatedvalue);
609: }
610:
611: # Main Handler
612: sub handler {
613: my $r=shift;
614: #
615: my $uri=$r->uri;
616: #
617: # Set document type
618: &Apache::loncommon::content_type($r,'text/html');
619: $r->send_http_header;
620: return OK if $r->header_only;
621: #
622: my ($resdomain,$resuser)=
623: (&Apache::lonnet::declutter($uri)=~/^(\w+)\/(\w+)\//);
624: my $html=&Apache::lonxml::xmlbegin();
625: $r->print($html.'<head><title>'.
626: 'Catalog Information'.
627: '</title></head>');
628: if ($uri=~m:/adm/bombs/(.*)$:) {
629: $r->print(&Apache::loncommon::bodytag('Error Messages'));
630: # Looking for all bombs?
631: &report_bombs($r,$uri);
632: } elsif ($uri=~/\/portfolio\//) {
633: ($resdomain,$resuser)=
634: (&Apache::lonnet::declutter($uri)=~m|^(\w+)/(\w+)/portfolio|);
635: $r->print(&Apache::loncommon::bodytag
636: ('Edit Portfolio File Information','','','',$resdomain));
637: &present_editable_metadata($r,$uri,'portfolio');
638: &select_course($r);
639: } elsif ($uri=~/^\/\~/) {
640: # Construction space
641: $r->print(&Apache::loncommon::bodytag
642: ('Edit Catalog Information','','','',$resdomain));
643: &present_editable_metadata($r,$uri);
644: } else {
645: $r->print(&Apache::loncommon::bodytag
646: ('Catalog Information','','','',$resdomain));
647: &present_uneditable_metadata($r,$uri);
648: }
649: $r->print('</body></html>');
650: return OK;
651: }
652:
653: #####################################################
654: #####################################################
655: ### ###
656: ### Report Bombs ###
657: ### ###
658: #####################################################
659: #####################################################
660: sub report_bombs {
661: my ($r,$uri) = @_;
662: # Set document type
663: $uri =~ s:/adm/bombs/::;
664: $uri = &Apache::lonnet::declutter($uri);
665: $r->print('<h1>'.&Apache::lonnet::clutter($uri).'</h1>');
666: my ($domain,$author)=($uri=~/^(\w+)\/(\w+)\//);
667: if (&Apache::loncacc::constructaccess('/~'.$author.'/',$domain)) {
668: if ($env{'form.clearbombs'}) {
669: &Apache::lonmsg::clear_author_res_msg($uri);
670: }
671: my $clear=&mt('Clear all Messages in Subdirectory');
672: $r->print(<<ENDCLEAR);
673: <form method="post">
674: <input type="submit" name="clearbombs" value="$clear" />
675: </form>
676: ENDCLEAR
677: my %brokenurls =
678: &Apache::lonmsg::all_url_author_res_msg($author,$domain);
679: foreach (sort(keys(%brokenurls))) {
680: if ($_=~/^\Q$uri\E/) {
681: $r->print
682: ('<a href="'.&Apache::lonnet::clutter($_).'">'.$_.'</a>'.
683: &Apache::lonmsg::retrieve_author_res_msg($_).
684: '<hr />');
685: }
686: }
687: } else {
688: $r->print(&mt('Not authorized'));
689: }
690: return;
691: }
692:
693: #####################################################
694: #####################################################
695: ### ###
696: ### Uneditable Metadata Display ###
697: ### ###
698: #####################################################
699: #####################################################
700: sub present_uneditable_metadata {
701: my ($r,$uri) = @_;
702: #
703: my %content=();
704: # Read file
705: foreach (split(/\,/,&Apache::lonnet::metadata($uri,'keys'))) {
706: $content{$_}=&Apache::lonnet::metadata($uri,$_);
707: }
708: # Render Output
709: # displayed url
710: my ($thisversion)=($uri=~/\.(\d+)\.(\w+)\.meta$/);
711: $uri=~s/\.meta$//;
712: my $disuri=&Apache::lonnet::clutter($uri);
713: # version
714: my $currentversion=&Apache::lonnet::getversion($disuri);
715: my $versiondisplay='';
716: if ($thisversion) {
717: $versiondisplay=&mt('Version').': '.$thisversion.
718: ' ('.&mt('most recent version').': '.
719: ($currentversion>0 ?
720: $currentversion :
721: &mt('information not available')).')';
722: } else {
723: $versiondisplay='Version: '.$currentversion;
724: }
725: # crumbify displayed URL uri target prefix form size
726: $disuri=&Apache::lonhtmlcommon::crumbs($disuri,undef, undef, undef,'+1');
727: $disuri =~ s:<br />::g;
728: # obsolete
729: my $obsolete=$content{'obsolete'};
730: my $obsoletewarning='';
731: if (($obsolete) && ($env{'user.adv'})) {
732: $obsoletewarning='<p><font color="red">'.
733: &mt('This resource has been marked obsolete by the author(s)').
734: '</font></p>';
735: }
736: #
737: my %lt=&fieldnames();
738: my $table='';
739: my $title = $content{'title'};
740: if (! defined($title)) {
741: $title = 'Untitled Resource';
742: }
743: foreach ('title',
744: 'author',
745: 'subject',
746: 'keywords',
747: 'notes',
748: 'abstract',
749: 'lowestgradelevel',
750: 'highestgradelevel',
751: 'standards',
752: 'mime',
753: 'language',
754: 'creationdate',
755: 'lastrevisiondate',
756: 'owner',
757: 'copyright',
758: 'customdistributionfile',
759: 'sourceavail',
760: 'sourcerights',
761: 'obsolete',
762: 'obsoletereplacement') {
763: $table.='<tr><td bgcolor="#AAAAAA">'.$lt{$_}.
764: '</td><td bgcolor="#CCCCCC">'.
765: &prettyprint($_,$content{$_}).'</td></tr>';
766: delete $content{$_};
767: }
768: #
769: $r->print(<<ENDHEAD);
770: <h2>$title</h2>
771: <p>
772: $disuri<br />
773: $obsoletewarning
774: $versiondisplay
775: </p>
776: <table cellspacing="2" border="0">
777: $table
778: </table>
779: ENDHEAD
780: if ($env{'user.adv'}) {
781: &print_dynamic_metadata($r,$uri,\%content);
782: }
783: return;
784: }
785:
786: sub print_dynamic_metadata {
787: my ($r,$uri,$content) = @_;
788: #
789: my %content = %$content;
790: my %lt=&fieldnames();
791: #
792: my $description = 'Dynamic Metadata (updated periodically)';
793: $r->print('<h3>'.&mt($description).'</h3>'.
794: &mt('Processing'));
795: $r->rflush();
796: my %items=&fieldnames();
797: my %dynmeta=&dynamicmeta($uri);
798: #
799: # General Access and Usage Statistics
800: if (exists($dynmeta{'count'}) ||
801: exists($dynmeta{'sequsage'}) ||
802: exists($dynmeta{'comefrom'}) ||
803: exists($dynmeta{'goto'}) ||
804: exists($dynmeta{'course'})) {
805: $r->print('<h4>'.&mt('Access and Usage Statistics').'</h4>'.
806: '<table cellspacing="2" border="0">');
807: foreach ('count',
808: 'sequsage','sequsage_list',
809: 'comefrom','comefrom_list',
810: 'goto','goto_list',
811: 'course','course_list') {
812: $r->print('<tr><td bgcolor="#AAAAAA">'.$lt{$_}.'</td>'.
813: '<td bgcolor="#CCCCCC">'.
814: &prettyprint($_,$dynmeta{$_})."</td></tr>\n");
815: }
816: $r->print('</table>');
817: } else {
818: $r->print('<h4>'.&mt('No Access or Usages Statistics are available for this resource.').'</h4>');
819: }
820: #
821: # Assessment statistics
822: if ($uri=~/\.(problem|exam|quiz|assess|survey|form)$/) {
823: if (exists($dynmeta{'stdno'}) ||
824: exists($dynmeta{'avetries'}) ||
825: exists($dynmeta{'difficulty'}) ||
826: exists($dynmeta{'disc'})) {
827: # This is an assessment, print assessment data
828: $r->print('<h4>'.
829: &mt('Overall Assessment Statistical Data').
830: '</h4>'.
831: '<table cellspacing="2" border="0">');
832: $r->print('<tr><td bgcolor="#AAAAAA">'.$lt{'stdno'}.'</td>'.
833: '<td bgcolor="#CCCCCC">'.
834: &prettyprint('stdno',$dynmeta{'stdno'}).
835: '</td>'."</tr>\n");
836: foreach ('avetries','difficulty','disc') {
837: $r->print('<tr><td bgcolor="#AAAAAA">'.$lt{$_}.'</td>'.
838: '<td bgcolor="#CCCCCC">'.
839: &prettyprint($_,sprintf('%5.2f',$dynmeta{$_})).
840: '</td>'."</tr>\n");
841: }
842: $r->print('</table>');
843: }
844: if (exists($dynmeta{'stats'})) {
845: #
846: # New assessment statistics
847: $r->print('<h4>'.
848: &mt('Detailed Assessment Statistical Data').
849: '</h4>');
850: my $table = '<table cellspacing="2" border="0">'.
851: '<tr>'.
852: '<th>Course</th>'.
853: '<th>Section(s)</th>'.
854: '<th>Num Students</th>'.
855: '<th>Mean Tries</th>'.
856: '<th>Degree of Difficulty</th>'.
857: '<th>Degree of Discrimination</th>'.
858: '<th>Time of computation</th>'.
859: '</tr>'.$/;
860: foreach my $identifier (sort(keys(%{$dynmeta{'stats'}}))) {
861: my $data = $dynmeta{'stats'}->{$identifier};
862: my $course = $data->{'course'};
863: my %courseinfo = &Apache::lonnet::coursedescription($course);
864: if (! exists($courseinfo{'num'}) || $courseinfo{'num'} eq '') {
865: &Apache::lonnet::logthis('lookup for '.$course.' failed');
866: next;
867: }
868: $table .= '<tr>';
869: $table .=
870: '<td><nobr>'.$courseinfo{'description'}.'</nobr></td>';
871: $table .=
872: '<td align="right">'.$data->{'sections'}.'</td>';
873: $table .=
874: '<td align="right">'.$data->{'stdno'}.'</td>';
875: foreach ('avetries','difficulty','disc') {
876: $table .= '<td align="right">';
877: if (exists($data->{$_})) {
878: $table .= sprintf('%.2f',$data->{$_}).' ';
879: } else {
880: $table .= '';
881: }
882: $table .= '</td>';
883: }
884: $table .=
885: '<td><nobr>'.
886: &Apache::lonlocal::locallocaltime($data->{'timestamp'}).
887: '</nobr></td>';
888: $table .=
889: '</tr>'.$/;
890: }
891: $table .= '</table>'.$/;
892: $r->print($table);
893: } else {
894: $r->print('No new dynamic data found.');
895: }
896: } else {
897: $r->print('<h4>'.
898: &mt('No Assessment Statistical Data is available for this resource').
899: '</h4>');
900: }
901:
902: #
903: #
904: if (exists($dynmeta{'clear'}) ||
905: exists($dynmeta{'depth'}) ||
906: exists($dynmeta{'helpful'}) ||
907: exists($dynmeta{'correct'}) ||
908: exists($dynmeta{'technical'})){
909: $r->print('<h4>'.&mt('Evaluation Data').'</h4>'.
910: '<table cellspacing="2" border="0">');
911: foreach ('clear','depth','helpful','correct','technical') {
912: $r->print('<tr><td bgcolor="#AAAAAA">'.$lt{$_}.'</td>'.
913: '<td bgcolor="#CCCCCC">'.
914: &prettyprint($_,$dynmeta{$_})."</td></tr>\n");
915: }
916: $r->print('</table>');
917: } else {
918: $r->print('<h4>'.&mt('No Evaluation Data is available for this resource.').'</h4>');
919: }
920: $uri=~/^\/res\/(\w+)\/(\w+)\//;
921: if ((($env{'user.domain'} eq $1) && ($env{'user.name'} eq $2))
922: || ($env{'user.role.ca./'.$1.'/'.$2})) {
923: if (exists($dynmeta{'comments'})) {
924: $r->print('<h4>'.&mt('Evaluation Comments').' ('.
925: &mt('visible to author and co-authors only').
926: ')</h4>'.
927: '<blockquote>'.$dynmeta{'comments'}.'</blockquote>');
928: } else {
929: $r->print('<h4>'.&mt('There are no Evaluation Comments on this resource.').'</h4>');
930: }
931: my $bombs = &Apache::lonmsg::retrieve_author_res_msg($uri);
932: if (defined($bombs) && $bombs ne '') {
933: $r->print('<a name="bombs" /><h4>'.&mt('Error Messages').' ('.
934: &mt('visible to author and co-authors only').')'.
935: '</h4>'.$bombs);
936: } else {
937: $r->print('<h4>'.&mt('There are currently no Error Messages for this resource.').'</h4>');
938: }
939: }
940: #
941: # All other stuff
942: $r->print('<h3>'.
943: &mt('Additional Metadata (non-standard, parameters, exports)').
944: '</h3><table border="0" cellspacing="1">');
945: foreach (sort(keys(%content))) {
946: my $name=$_;
947: if ($name!~/\.display$/) {
948: my $display=&Apache::lonnet::metadata($uri,
949: $name.'.display');
950: if (! $display) {
951: $display=$name;
952: };
953: my $otherinfo='';
954: foreach ('name','part','type','default') {
955: if (defined(&Apache::lonnet::metadata($uri,
956: $name.'.'.$_))) {
957: $otherinfo.=' '.$_.'='.
958: &Apache::lonnet::metadata($uri,
959: $name.'.'.$_).'; ';
960: }
961: }
962: $r->print('<tr><td bgcolor="#bbccbb"><font size="-1" color="#556655">'.$display.'</font></td><td bgcolor="#ccddcc"><font size="-1" color="#556655">'.$content{$name});
963: if ($otherinfo) {
964: $r->print(' ('.$otherinfo.')');
965: }
966: $r->print("</font></td></tr>\n");
967: }
968: }
969: $r->print("</table>");
970: return;
971: }
972:
973:
974:
975: #####################################################
976: #####################################################
977: ### ###
978: ### Editable metadata display ###
979: ### ###
980: #####################################################
981: #####################################################
982: sub present_editable_metadata {
983: my ($r,$uri, $file_type) = @_;
984: # Construction Space Call
985: # Header
986: my $disuri=$uri;
987: my $fn=&Apache::lonnet::filelocation('',$uri);
988: $disuri=~s/^\/\~/\/priv\//;
989: $disuri=~s/\.meta$//;
990: $disuri=~s|^/editupload||;
991: my $target=$uri;
992: $target=~s/^\/\~/\/res\/$env{'request.role.domain'}\//;
993: $target=~s/\.meta$//;
994: my $bombs=&Apache::lonmsg::retrieve_author_res_msg($target);
995: if ($bombs) {
996: my $showdel=1;
997: if ($env{'form.delmsg'}) {
998: if (&Apache::lonmsg::del_url_author_res_msg($target) eq 'ok') {
999: $bombs=&mt('Messages deleted.');
1000: $showdel=0;
1001: } else {
1002: $bombs=&mt('Error deleting messages');
1003: }
1004: }
1005: if ($env{'form.clearmsg'}) {
1006: my $cleardir=$target;
1007: $cleardir=~s/\/[^\/]+$/\//;
1008: if (&Apache::lonmsg::clear_author_res_msg($cleardir) eq 'ok') {
1009: $bombs=&mt('Messages cleared.');
1010: $showdel=0;
1011: } else {
1012: $bombs=&mt('Error clearing messages');
1013: }
1014: }
1015: my $del=&mt('Delete Messages for this Resource');
1016: my $clear=&mt('Clear all Messages in Subdirectory');
1017: my $goback=&mt('Back to Source File');
1018: $r->print(<<ENDBOMBS);
1019: <h1>$disuri</h1>
1020: <form method="post" name="defaultmeta">
1021: ENDBOMBS
1022: if ($showdel) {
1023: $r->print(<<ENDDEL);
1024: <input type="submit" name="delmsg" value="$del" />
1025: <input type="submit" name="clearmsg" value="$clear" />
1026: ENDDEL
1027: } else {
1028: $r->print('<a href="'.$disuri.'" />'.$goback.'</a>');
1029: }
1030: $r->print('<br />'.$bombs);
1031: } else {
1032: my $displayfile='Catalog Information for '.$disuri;
1033: if ($disuri=~/\/default$/) {
1034: my $dir=$disuri;
1035: $dir=~s/default$//;
1036: $displayfile=
1037: &mt('Default Cataloging Information for Directory').' '.
1038: $dir;
1039: }
1040: %Apache::lonpublisher::metadatafields=();
1041: %Apache::lonpublisher::metadatakeys=();
1042: my $result=&Apache::lonnet::getfile($fn);
1043: if ($result == -1){
1044: $r->print('Creating new '.$disuri);
1045: } else {
1046: &Apache::lonpublisher::metaeval($result);
1047: }
1048: $r->print(<<ENDEDIT);
1049: <h1>$displayfile</h1>
1050: <form method="post" name="defaultmeta">
1051: ENDEDIT
1052: $r->print('<script language="JavaScript">'.
1053: &Apache::loncommon::browser_and_searcher_javascript().
1054: '</script>');
1055: my %lt=&fieldnames($file_type);
1056: my $output;
1057: my @fields;
1058: if ($file_type eq 'portfolio') {
1059: @fields = ('author','title','subject','keywords','abstract','notes','lowestgradelevel',
1060: 'highestgradelevel','courserestricted');
1061: } else {
1062: @fields = ('author','title','subject','keywords','abstract','notes',
1063: 'copyright','customdistributionfile','language',
1064: 'standards',
1065: 'lowestgradelevel','highestgradelevel','sourceavail','sourcerights',
1066: 'obsolete','obsoletereplacement');
1067: }
1068: my $metacourse;
1069: if ($env{'form.metacourse'} ) {
1070: $Apache::lonpublisher::metadatafields{'courserestricted'} = $env{'form.metacourse'};
1071: $metacourse = $env{'form.metacourse'};
1072: } else {
1073: if (! $Apache::lonpublisher::metadatafields{'courserestricted'}) {
1074: $Apache::lonpublisher::metadatafields{'courserestricted'}=
1075: 'none';
1076: $metacourse = 'none';
1077: } else {
1078: $metacourse = $Apache::lonpublisher::metadatafields{'courserestricted'};
1079: }
1080: }
1081: if (! $Apache::lonpublisher::metadatafields{'copyright'}) {
1082: $Apache::lonpublisher::metadatafields{'copyright'}=
1083: 'default';
1084: }
1085: foreach (@fields) {
1086: if (defined($env{'form.new_'.$_})) {
1087: $Apache::lonpublisher::metadatafields{$_}=
1088: $env{'form.new_'.$_};
1089: }
1090: if ($metacourse ne 'none') {
1091: # handle restrictions here
1092: if (($env{$metacourse.'.metadata.'.$_.'.options'} =~ m/active/)||
1093: ($_ eq 'courserestricted')) {
1094: $output.=('<p>'.$lt{$_}.': '.
1095: &prettyinput($_,
1096: $Apache::lonpublisher::metadatafields{$_},
1097: 'new_'.$_,'defaultmeta',undef,undef,undef,undef,$metacourse).'</p>');
1098: }
1099: } else {
1100: $output.=('<p>'.$lt{$_}.': '.
1101: &prettyinput($_,
1102: $Apache::lonpublisher::metadatafields{$_},
1103: 'new_'.$_,'defaultmeta').'</p>');
1104: }
1105: }
1106: if ($env{'form.store'}) {
1107: my $mfh;
1108: my $formname='store';
1109: my $file_content;
1110: foreach my $meta_field (keys %env) {
1111: if (&Apache::loncommon::get_env_multiple('form.new_keywords')) {
1112: $Apache::lonpublisher::metadatafields{'keywords'} =
1113: join (',', &Apache::loncommon::get_env_multiple('form.new_keywords'));
1114: }
1115: }
1116: foreach (sort keys %Apache::lonpublisher::metadatafields) {
1117: next if ($_ =~ /\./);
1118: my $unikey=$_;
1119: $unikey=~/^([A-Za-z]+)/;
1120: my $tag=$1;
1121: $tag=~tr/A-Z/a-z/;
1122: $file_content.= "\n\<$tag";
1123: foreach (split(/\,/,
1124: $Apache::lonpublisher::metadatakeys{$unikey})
1125: ) {
1126: my $value=
1127: $Apache::lonpublisher::metadatafields{$unikey.'.'.$_};
1128: $value=~s/\"/\'\'/g;
1129: $file_content.=' '.$_.'="'.$value.'"' ;
1130: # print $mfh ' '.$_.'="'.$value.'"';
1131: }
1132: $file_content.= '>'.
1133: &HTML::Entities::encode
1134: ($Apache::lonpublisher::metadatafields{$unikey},
1135: '<>&"').
1136: '</'.$tag.'>';
1137: }
1138: if ($fn =~ /\/portfolio\//) {
1139: $fn =~ /\/portfolio\/(.*)$/;
1140: my $new_fn = '/'.$1;
1141: $env{'form.'.$formname}=$file_content;
1142: $env{'form.'.$formname.'.filename'}=$new_fn;
1143: &Apache::lonnet::userfileupload('uploaddoc','',
1144: 'portfolio'.$env{'form.currentpath'});
1145: if (&Apache::lonnet::userfileupload($formname,'','portfolio') eq 'error: no uploaded file') {
1146: $r->print('<p><font color="red">'.
1147: &mt('Could not write metadata').', '.
1148: &mt('FAIL').'</font></p>');
1149: } else {
1150: $r->print('<p><font color="blue">'.&mt('Wrote Metadata').
1151: ' '.&Apache::lonlocal::locallocaltime(time).
1152: '</font></p>');
1153: }
1154: } else {
1155: if (! ($mfh=Apache::File->new('>'.$fn))) {
1156: $r->print('<p><font color="red">'.
1157: &mt('Could not write metadata').', '.
1158: &mt('FAIL').'</font></p>');
1159: } else {
1160: print $mfh $file_content;
1161: $r->print('<p><font color="blue">'.&mt('Wrote Metadata').
1162: ' '.&Apache::lonlocal::locallocaltime(time).
1163: '</font></p>');
1164: }
1165: }
1166: }
1167: $r->print($output.'<br /><input type="submit" name="store" value="'.
1168: &mt('Store Catalog Information').'">');
1169: }
1170: $r->print('</form>');
1171: return;
1172: }
1173:
1174: 1;
1175: __END__
1176:
1177:
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