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[LON-CAPA] /
loncom /
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lonmeta.pm
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Mon Nov 17 14:06:14 2008 UTC (15 years, 6 months ago) by
schafran
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"Edit Catalog Information" renamed to "Edit Metadata"
Button "Save Catalog Information" renamed to "Save" added to button:title="Save Metadata"
"Default Cataloging Information" renamed to "Default Metadata"
"Catalog Information for" renamed to "Metadata for"
"Catalog Information" renamed to "Metadata"
1: # The LearningOnline Network with CAPA
2: # Metadata display handler
3: #
4: # $Id: lonmeta.pm,v 1.214 2008/11/17 14:06:14 schafran 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: =head1 NAME
30:
31: Apache::lonmeta - display meta data
32:
33: =head1 SYNOPSIS
34:
35: Handler to display meta data
36:
37: This is part of the LearningOnline Network with CAPA project
38: described at http://www.lon-capa.org.
39:
40: =head1 HANDLER SUBROUTINE
41:
42: handler()
43:
44: =head1 OTHER SUBROUTINES
45:
46: =over
47:
48: =item *
49:
50: &get_dynamic_metadata_from_sql($url) :
51:
52: Queries sql database for dynamic metdata
53: Returns a hash of hashes, with keys of urls which match $url
54: Returned fields are given below.
55:
56: Examples:
57:
58: %DynamicMetadata = &Apache::lonmeta::get_dynmaic_metadata_from_sql
59: ('/res/msu/korte/');
60:
61: $DynamicMetadata{'/res/msu/korte/example.problem'}->{$field}
62:
63: =item *
64:
65: dynamicmeta() : Fetch and evaluate dynamic metadata
66:
67: =item *
68:
69: access_count()
70:
71: =item *
72:
73: alttag() : Try to make an alt tag if there is none
74:
75: =item *
76:
77: authordisplay() : Author display
78:
79: =item *
80:
81: evalgraph() : Pretty display
82:
83: =item *
84:
85: diffgraph()
86:
87: =item *
88:
89: fieldnames()
90:
91: =item *
92:
93: portfolio_linked_path()
94:
95: =item *
96:
97: get_port_path_and_group()
98:
99: =item *
100:
101: portfolio_display_uri()
102:
103: =item *
104:
105: pre_select_course()
106:
107: =item *
108:
109: select_course()
110:
111: =item *
112:
113: prettyprint() : Pretty printing of metadata field
114:
115: =item *
116:
117: direct() : Pretty input of metadata field
118:
119: =item *
120:
121: selectbox()
122:
123: =item *
124:
125: relatedfield()
126:
127: =item *
128:
129: prettyinput()
130:
131: =item *
132:
133: report_bombs()
134:
135: =item *
136:
137: present_uneditable_metadata()
138:
139: =item *
140:
141: present_editable_metadata()
142:
143: =item *
144:
145: store_metadata()
146:
147: =item *
148:
149: store_transferred_addedfields()
150:
151: =item *
152:
153: store_portfolio_metadata()
154:
155: =item *
156:
157: update_metadata_table()
158:
159: =back
160:
161: =cut
162:
163:
164: package Apache::lonmeta;
165:
166: use strict;
167: use LONCAPA::lonmetadata();
168: use Apache::Constants qw(:common);
169: use Apache::lonnet;
170: use Apache::loncommon();
171: use Apache::lonhtmlcommon();
172: use Apache::lonmsg;
173: use Apache::lonpublisher;
174: use Apache::lonlocal;
175: use Apache::lonmysql;
176: use Apache::lonmsg;
177: use LONCAPA qw(:DEFAULT :match);
178:
179:
180: sub get_dynamic_metadata_from_sql {
181: my ($url) = shift();
182: my ($authordom,$author)=($url=~m{^/res/($match_domain)/($match_username)/});
183: if (! defined($authordom)) {
184: $authordom = shift();
185: }
186: if (! defined($author)) {
187: $author = shift();
188: }
189: if (! defined($authordom) || ! defined($author)) {
190: return ();
191: }
192: my $query = 'SELECT * FROM metadata WHERE url LIKE "'.$url.'%"';
193: my $server = &Apache::lonnet::homeserver($author,$authordom);
194: my $reply = &Apache::lonnet::metadata_query($query,undef,undef,
195: ,[$server]);
196: return () if (! defined($reply) || ref($reply) ne 'HASH');
197: my $filename = $reply->{$server};
198: if (! defined($filename) || $filename =~ /^error/) {
199: return ();
200: }
201: my $max_time = time + 10; # wait 10 seconds for results at most
202: my %ReturnHash;
203: #
204: # Look for results
205: my $finished = 0;
206: while (! $finished && time < $max_time) {
207: my $datafile=$Apache::lonnet::perlvar{'lonDaemons'}.'/tmp/'.$filename;
208: if (! -e "$datafile.end") { next; }
209: my $fh;
210: if (!($fh=Apache::File->new($datafile))) { next; }
211: while (my $result = <$fh>) {
212: chomp($result);
213: next if (! $result);
214: my %hash=&LONCAPA::lonmetadata::metadata_col_to_hash('metadata',
215: map { &unescape($_) } split(/\,/,$result));
216: foreach my $key (keys(%hash)) {
217: $ReturnHash{$hash{'url'}}->{$key}=$hash{$key};
218: }
219: }
220: $finished = 1;
221: }
222: #
223: return %ReturnHash;
224: }
225:
226:
227: # Fetch and evaluate dynamic metadata
228: sub dynamicmeta {
229: my $url=&Apache::lonnet::declutter(shift);
230: $url=~s/\.meta$//;
231: my ($adomain,$aauthor)=($url=~/^($match_domain)\/($match_username)\//);
232: my $regexp=$url;
233: $regexp=~s/(\W)/\\$1/g;
234: $regexp='___'.$regexp.'___';
235: my %evaldata=&Apache::lonnet::dump('nohist_resevaldata',$adomain,
236: $aauthor,$regexp);
237: my %DynamicData = &LONCAPA::lonmetadata::process_reseval_data(\%evaldata);
238: my %Data = &LONCAPA::lonmetadata::process_dynamic_metadata($url,
239: \%DynamicData);
240: #
241: # Deal with 'count' separately
242: $Data{'count'} = &access_count($url,$aauthor,$adomain);
243: #
244: # Debugging code I will probably need later
245: if (0) {
246: &Apache::lonnet::logthis('Dynamic Metadata');
247: while(my($k,$v)=each(%Data)){
248: &Apache::lonnet::logthis(' "'.$k.'"=>"'.$v.'"');
249: }
250: &Apache::lonnet::logthis('-------------------');
251: }
252: return %Data;
253: }
254:
255: sub access_count {
256: my ($src,$author,$adomain) = @_;
257: my %countdata=&Apache::lonnet::dump('nohist_accesscount',$adomain,
258: $author,$src);
259: if (! exists($countdata{$src})) {
260: return &mt('Not Available');
261: } else {
262: return $countdata{$src};
263: }
264: }
265:
266: # Try to make an alt tag if there is none
267: sub alttag {
268: my ($base,$src)=@_;
269: my $fullpath=&Apache::lonnet::hreflocation($base,$src);
270: my $alttag=&Apache::lonnet::metadata($fullpath,'title').' '.
271: &Apache::lonnet::metadata($fullpath,'subject').' '.
272: &Apache::lonnet::metadata($fullpath,'abstract');
273: $alttag=~s/\s+/ /gs;
274: $alttag=~s/\"//gs;
275: $alttag=~s/\'//gs;
276: $alttag=~s/\s+$//gs;
277: $alttag=~s/^\s+//gs;
278: if ($alttag) {
279: return $alttag;
280: } else {
281: return &mt('No information available');
282: }
283: }
284:
285: # Author display
286: sub authordisplay {
287: my ($aname,$adom)=@_;
288: return &Apache::loncommon::aboutmewrapper
289: (&Apache::loncommon::plainname($aname,$adom),
290: $aname,$adom,'preview').' <tt>['.$aname.':'.$adom.']</tt>';
291: }
292:
293: # Pretty display
294: sub evalgraph {
295: my $value=shift;
296: if (! $value) {
297: return '';
298: }
299: my $val=int($value*10.+0.5)-10;
300: my $output='<table border="0" cellpadding="0" cellspacing="0"><tr>';
301: if ($val>=20) {
302: $output.='<td width="20" bgcolor="#555555">  </td>';
303: } else {
304: $output.='<td width="'.($val).'" bgcolor="#555555"> </td>'.
305: '<td width="'.(20-$val).'" bgcolor="#FF3333"> </td>';
306: }
307: $output.='<td bgcolor="#FFFF33"> </td>';
308: if ($val>20) {
309: $output.='<td width="'.($val-20).'" bgcolor="#33FF33"> </td>'.
310: '<td width="'.(40-$val).'" bgcolor="#555555"> </td>';
311: } else {
312: $output.='<td width="20" bgcolor="#555555">  </td>';
313: }
314: $output.='<td> ('.sprintf("%5.2f",$value).') </td></tr></table>';
315: return $output;
316: }
317:
318: sub diffgraph {
319: my $value=shift;
320: if (! $value) {
321: return '';
322: }
323: my $val=int(40.0*$value+0.5);
324: my @colors=('#FF9933','#EEAA33','#DDBB33','#CCCC33',
325: '#BBDD33','#CCCC33','#DDBB33','#EEAA33');
326: my $output='<table border="0" cellpadding="0" cellspacing="0"><tr>';
327: for (my $i=0;$i<8;$i++) {
328: if ($val>$i*5) {
329: $output.='<td width="5" bgcolor="'.$colors[$i].'"> </td>';
330: } else {
331: $output.='<td width="5" bgcolor="#555555"> </td>';
332: }
333: }
334: $output.='<td> ('.sprintf("%3.2f",$value).') </td></tr></table>';
335: return $output;
336: }
337:
338:
339: # The field names
340: sub fieldnames {
341: my $file_type=shift;
342: my %fields =
343: ('title' => 'Title',
344: 'author' =>'Author(s)',
345: 'authorspace' => 'Author Space',
346: 'modifyinguser' => 'Last Modifying User',
347: 'subject' => 'Subject',
348: 'standards' => 'Standards',
349: 'keywords' => 'Keyword(s)',
350: 'notes' => 'Notes',
351: 'abstract' => 'Abstract',
352: 'lowestgradelevel' => 'Lowest Grade Level',
353: 'highestgradelevel' => 'Highest Grade Level');
354:
355: if ( !defined($file_type) || ($file_type ne 'portfolio' && $file_type ne 'groups') ) {
356: %fields =
357: (%fields,
358: 'domain' => 'Domain',
359: 'mime' => 'MIME Type',
360: 'language' => 'Language',
361: 'creationdate' => 'Creation Date',
362: 'lastrevisiondate' => 'Last Revision Date',
363: 'owner' => 'Publisher/Owner',
364: 'copyright' => 'Copyright/Distribution',
365: 'customdistributionfile' => 'Custom Distribution File',
366: 'sourceavail' => 'Source Available',
367: 'sourcerights' => 'Source Custom Distribution File',
368: 'obsolete' => 'Obsolete',
369: 'obsoletereplacement' => 'Suggested Replacement for Obsolete File',
370: 'count' => 'Network-wide number of accesses (hits)',
371: 'course' => 'Network-wide number of courses using resource',
372: 'course_list' => 'Network-wide courses using resource',
373: 'sequsage' => 'Number of resources using or importing resource',
374: 'sequsage_list' => 'Resources using or importing resource',
375: 'goto' => 'Number of resources that follow this resource in maps',
376: 'goto_list' => 'Resources that follow this resource in maps',
377: 'comefrom' => 'Number of resources that lead up to this resource in maps',
378: 'comefrom_list' => 'Resources that lead up to this resource in maps',
379: 'clear' => 'Material presented in clear way',
380: 'depth' => 'Material covered with sufficient depth',
381: 'helpful' => 'Material is helpful',
382: 'correct' => 'Material appears to be correct',
383: 'technical' => 'Resource is technically correct',
384: 'avetries' => 'Average number of tries till solved',
385: 'stdno' => 'Statistics calculated for number of students',
386: 'difficulty' => 'Degree of difficulty',
387: 'disc' => 'Degree of discrimination',
388: 'dependencies' => 'Resources used by this resource',
389: );
390: }
391: return &Apache::lonlocal::texthash(%fields);
392: }
393:
394: sub portfolio_linked_path {
395: my ($path,$group,$port_path) = @_;
396:
397: my $start = 'portfolio';
398: if ($group) {
399: $start = "groups/$group/".$start;
400: }
401: my %anchor_fields = (
402: 'selectfile' => $start,
403: 'currentpath' => '/'
404: );
405: my $result = &Apache::portfolio::make_anchor($port_path,\%anchor_fields,$start);
406: my $fullpath = '/';
407: my (undef,@tree) = split('/',$path);
408: my $filename = pop(@tree);
409: foreach my $dir (@tree) {
410: $fullpath .= $dir.'/';
411: $result .= '/';
412: my %anchor_fields = (
413: 'selectfile' => $dir,
414: 'currentpath' => $fullpath
415: );
416: $result .= &Apache::portfolio::make_anchor($port_path,\%anchor_fields,$dir);
417: }
418: $result .= "/$filename";
419: return $result;
420: }
421:
422: sub get_port_path_and_group {
423: my ($uri)=@_;
424:
425: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
426: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
427:
428: my ($port_path,$group);
429: if ($uri =~ m{^/editupload/\Q$cdom\E/\Q$cnum\E/groups/}) {
430: $group = (split('/',$uri))[5];
431: $port_path = '/adm/coursegrp_portfolio';
432: } else {
433: $port_path = '/adm/portfolio';
434: }
435: if ($env{'form.group'} ne $group) {
436: $env{'form.group'} = $group;
437: }
438: return ($port_path,$group);
439: }
440:
441: sub portfolio_display_uri {
442: my ($uri,$as_links)=@_;
443:
444: my ($port_path,$group) = &get_port_path_and_group($uri);
445:
446: $uri =~ s|.*/(portfolio/.*)$|$1|;
447: my ($res_uri,$meta_uri) = ($uri,$uri);
448: if ($uri =~ /\.meta$/) {
449: $res_uri =~ s/\.meta//;
450: } else {
451: $meta_uri .= '.meta';
452: }
453:
454: my ($path) = ($res_uri =~ m|^portfolio(.*/)[^/]*$|);
455: if ($as_links) {
456: $res_uri = &portfolio_linked_path($res_uri,$group,$port_path);
457: $meta_uri = &portfolio_linked_path($meta_uri,$group,$port_path);
458: }
459: return ($res_uri,$meta_uri,$path);
460: }
461:
462: sub pre_select_course {
463: my ($r,$uri) = @_;
464: my $output;
465: my $fn=&Apache::lonnet::filelocation('',$uri);
466: my ($res_uri,$meta_uri,$path) = &portfolio_display_uri($uri);
467: %Apache::lonpublisher::metadatafields=();
468: %Apache::lonpublisher::metadatakeys=();
469: my $result=&Apache::lonnet::getfile($fn);
470: if ($result == -1){
471: $r->print(&mt('Creating new file [_1]'),$meta_uri);
472: } else {
473: &Apache::lonpublisher::metaeval($result);
474: }
475: $r->print('<hr /><form method="post" action="" >');
476: $r->print('<p>'.&mt('If you would like to associate this resource ([_1]) with a current or previous course, please select one from the list below, otherwise select, \'None\'','<tt>'.$res_uri.'</tt>').'</p>');
477: $output = &select_course();
478: $r->print($output.'<br /><input type="submit" name="store" value="'.
479: &mt('Associate Resource With Selected Course').'" />');
480: $r->print('<input type="hidden" name="currentpath" value="'.$env{'form.currentpath'}.'" />');
481: $r->print('<input type="hidden" name="associate" value="true" />');
482: $r->print('</form>');
483:
484: my ($port_path,$group) = &get_port_path_and_group($uri);
485: my $group_input;
486: if ($group) {
487: $group_input = '<input type="hidden" name="group" value="'.$group.'" />';
488: }
489: $r->print('<br /><br /><form method="post" action="'.$port_path.'">'.
490: '<input type="hidden" name="currentpath" value="'.$path.'" />'.
491: $group_input.
492: '<input type="submit" name="cancel" value="'.&mt('Cancel').'" />'.
493: '</form>');
494:
495: return;
496: }
497: sub select_course {
498: my $output=$/;
499: my $current_restriction=
500: $Apache::lonpublisher::metadatafields{'courserestricted'};
501: my $selected = ($current_restriction eq 'none' ? 'selected="selected"'
502: : '');
503: if ($current_restriction =~ /^course\.($match_domain\_$match_courseid)$/) {
504: my $assoc_crs = $1;
505: my $added_metadata_fields = &Apache::lonparmset::get_added_meta_fieldnames($assoc_crs);
506: if (ref($added_metadata_fields) eq 'HASH') {
507: if (keys(%{$added_metadata_fields}) > 0) {
508: my $transfernotes;
509: foreach my $field_name (keys(%{$added_metadata_fields})) {
510: my $value = $Apache::lonpublisher::metadatafields{$field_name};
511: if ($value) {
512: $transfernotes .=
513: &Apache::loncommon::start_data_table_row().
514: '<td><input type="checkbox" name="transfer_'.
515: $field_name.'" value="1" /></td><td>'.
516: $field_name.'</td><td>'.$value.'</td>'.
517: &Apache::loncommon::end_data_table_row();
518: }
519: }
520: if ($transfernotes ne '') {
521: my %courseinfo = &Apache::lonnet::coursedescription($assoc_crs,{'one_time' => 1});
522: my $assoc_crs_description = $courseinfo{'description'};
523: $output .= &mt('This resource is currently associated with a course ([_1]) which includes added metadata fields specific to the course.',$assoc_crs_description).'<br />'."\n".
524: &mt('You can choose to transfer data from the added fields to the "Notes" field if you are planning to change the course association.').'<br /><br />'.
525: &Apache::loncommon::start_data_table().
526: &Apache::loncommon::start_data_table_header_row().
527: '<th>Copy to notes?</th>'."\n".
528: '<th>Field name</th>'."\n".
529: '<th>Values</th>'."\n".
530: &Apache::loncommon::end_data_table_header_row().
531: $transfernotes.
532: &Apache::loncommon::end_data_table().'<br />';
533: }
534: }
535: }
536: }
537: $output .= '<select name="new_courserestricted" >';
538: $output .= '<option value="none" '.$selected.'>'.
539: &mt('None').'</option>'.$/;
540: my %courses;
541: foreach my $key (keys(%env)) {
542: if ($key !~ m/^course\.(.+)\.description$/) { next; }
543: my $cid = $1;
544: if ($env{$key} !~ /\S/) { next; }
545: $courses{$key} = $cid;
546: }
547: foreach my $key (sort { lc($env{$a}) cmp lc($env{$b}) } (keys(%courses))) {
548: my $cid = 'course.'.$courses{$key};
549: my $selected = ($current_restriction eq $cid ? 'selected="selected"'
550: : '');
551: if ($env{$key} !~ /\S/) { next; }
552: $output .= '<option value="'.$cid.'" '.$selected.'>';
553: $output .= $env{$key};
554: $output .= '</option>'.$/;
555: $selected = '';
556: }
557: $output .= '</select><br />';
558: return ($output);
559: }
560: # Pretty printing of metadata field
561:
562: sub prettyprint {
563: my ($type,$value,$target,$prefix,$form,$noformat)=@_;
564: # $target,$prefix,$form are optional and for filecrumbs only
565: if (! defined($value)) {
566: return ' ';
567: }
568: # Title
569: if ($type eq 'title') {
570: return '<font size="+1" face="arial">'.$value.'</font>';
571: }
572: # Dates
573: if (($type eq 'creationdate') ||
574: ($type eq 'lastrevisiondate')) {
575: return ($value?&Apache::lonlocal::locallocaltime(
576: &Apache::lonmysql::unsqltime($value)):
577: &mt('not available'));
578: }
579: # Language
580: if ($type eq 'language') {
581: return &Apache::loncommon::languagedescription($value);
582: }
583: # Copyright
584: if ($type eq 'copyright') {
585: return &Apache::loncommon::copyrightdescription($value);
586: }
587: # Copyright
588: if ($type eq 'sourceavail') {
589: return &Apache::loncommon::source_copyrightdescription($value);
590: }
591: # MIME
592: if ($type eq 'mime') {
593: return '<img src="'.&Apache::loncommon::icon($value).'" /> '.
594: &Apache::loncommon::filedescription($value);
595: }
596: # Person
597: if (($type eq 'author') ||
598: ($type eq 'owner') ||
599: ($type eq 'modifyinguser') ||
600: ($type eq 'authorspace')) {
601: $value=~s/($match_username)(\:|\@)($match_domain)/&authordisplay($1,$3)/gse;
602: return $value;
603: }
604: # Gradelevel
605: if (($type eq 'lowestgradelevel') ||
606: ($type eq 'highestgradelevel')) {
607: return &Apache::loncommon::gradeleveldescription($value);
608: }
609: # Only for advance users below
610: if (! $env{'user.adv'}) {
611: return '<i>- '.&mt('not displayed').' -</i>';
612: }
613: # File
614: if (($type eq 'customdistributionfile') ||
615: ($type eq 'obsoletereplacement') ||
616: ($type eq 'goto_list') ||
617: ($type eq 'comefrom_list') ||
618: ($type eq 'sequsage_list') ||
619: ($type eq 'dependencies')) {
620: return '<font size="-1"><ul>'.join("\n",map {
621: my $url = &Apache::lonnet::clutter_with_no_wrapper($_);
622: my $title = &Apache::lonnet::gettitle($url);
623: if ($title eq '') {
624: $title = 'Untitled';
625: if ($url =~ /\.sequence$/) {
626: $title .= ' Sequence';
627: } elsif ($url =~ /\.page$/) {
628: $title .= ' Page';
629: } elsif ($url =~ /\.problem$/) {
630: $title .= ' Problem';
631: } elsif ($url =~ /\.html$/) {
632: $title .= ' HTML document';
633: } elsif ($url =~ m:/syllabus$:) {
634: $title .= ' Syllabus';
635: }
636: }
637: $_ = '<li>'.$title.' '.
638: &Apache::lonhtmlcommon::crumbs($url,$target,$prefix,$form,'-1',$noformat).
639: '</li>'
640: } split(/\s*\,\s*/,$value)).'</ul></font>';
641: }
642: # Evaluations
643: if (($type eq 'clear') ||
644: ($type eq 'depth') ||
645: ($type eq 'helpful') ||
646: ($type eq 'correct') ||
647: ($type eq 'technical')) {
648: return &evalgraph($value);
649: }
650: # Difficulty
651: if ($type eq 'difficulty' || $type eq 'disc') {
652: return &diffgraph($value);
653: }
654: # List of courses
655: if ($type=~/\_list/) {
656: my @Courses = split(/\s*\,\s*/,$value);
657: my $Str='<font size="-1"><ul>';
658: my %descriptions;
659: foreach my $course (@Courses) {
660: my %courseinfo =
661: &Apache::lonnet::coursedescription($course,
662: {'one_time' => 1});
663: if (! exists($courseinfo{'num'}) || $courseinfo{'num'} eq '') {
664: next;
665: }
666: $descriptions{join('\0',@courseinfo{'domain','description'})} .=
667: '<li><a href="/public/'.$courseinfo{'domain'}.'/'.
668: $courseinfo{'num'}.'/syllabus" target="preview">'.
669: $courseinfo{'description'}.' ('.$courseinfo{'domain'}.
670: ')</a></li>';
671: }
672: foreach my $course (sort {lc($a) cmp lc($b)} (keys(%descriptions))) {
673: $Str .= $descriptions{$course};
674: }
675:
676: return $Str.'</ul></font>';
677: }
678: # No pretty print found
679: return $value;
680: }
681:
682: # Pretty input of metadata field
683: sub direct {
684: return shift;
685: }
686:
687: sub selectbox {
688: my ($name,$value,$functionref,@idlist)=@_;
689: if (! defined($functionref)) {
690: $functionref=\&direct;
691: }
692: my $selout='<select name="'.$name.'">';
693: foreach (@idlist) {
694: $selout.='<option value=\''.$_.'\'';
695: if ($_ eq $value) {
696: $selout.=' selected>'.&{$functionref}($_).'</option>';
697: }
698: else {$selout.='>'.&{$functionref}($_).'</option>';}
699: }
700: return $selout.'</select>';
701: }
702:
703: sub relatedfield {
704: my ($show,$relatedsearchflag,$relatedsep,$fieldname,$relatedvalue)=@_;
705: if (! $relatedsearchflag) {
706: return '';
707: }
708: if (! defined($relatedsep)) {
709: $relatedsep=' ';
710: }
711: if (! $show) {
712: return $relatedsep.' ';
713: }
714: return $relatedsep.'<input type="checkbox" name="'.$fieldname.'_related"'.
715: ($relatedvalue?' checked="1"':'').' />';
716: }
717:
718: sub prettyinput {
719: my ($type,$value,$fieldname,$formname,
720: $relatedsearchflag,$relatedsep,$relatedvalue,$size,$course_key)=@_;
721: if (! defined($size)) {
722: $size = 80;
723: }
724: my $output;
725: if (defined($course_key)
726: && exists($env{$course_key.'.metadata.'.$type.'.options'})) {
727: my $stu_add;
728: my $only_one;
729: my %meta_options;
730: my @cur_values_inst;
731: my $cur_values_stu;
732: my $values = $env{$course_key.'.metadata.'.$type.'.values'};
733: if ($env{$course_key.'.metadata.'.$type.'.options'} =~ m/stuadd/) {
734: $stu_add = 'true';
735: }
736: if ($env{$course_key.'.metadata.'.$type.'.options'} =~ m/onlyone/) {
737: $only_one = 'true';
738: }
739: # need to take instructor values out of list where instructor and student
740: # values may be mixed.
741: if ($values) {
742: foreach my $item (split(/,/,$values)) {
743: $item =~ s/^\s+//;
744: $meta_options{$item} = $item;
745: }
746: foreach my $item (split(/,/,$value)) {
747: $item =~ s/^\s+//;
748: if ($meta_options{$item}) {
749: push(@cur_values_inst,$item);
750: } else {
751: if ($item ne '') {
752: $cur_values_stu .= $item.',';
753: }
754: }
755: }
756: $cur_values_stu =~ s/,$//;
757: my @key_order = sort(keys(%meta_options));
758: unshift(@key_order,'');
759: $meta_options{''} = 'Not specified';
760: $meta_options{'select_form_order'} = \@key_order;
761: } else {
762: $cur_values_stu = $value;
763: }
764: if ($type eq 'courserestricted') {
765: return (&select_course());
766: # return ('<input type="hidden" name="new_courserestricted" value="'.$course_key.'" />');
767: }
768: if (($type eq 'keywords') || ($type eq 'subject')
769: || ($type eq 'author')||($type eq 'notes')
770: || ($type eq 'abstract')|| ($type eq 'title')|| ($type eq 'standards')
771: || (exists($env{$course_key.'.metadata.'.$type.'.added'}))) {
772:
773: if ($values) {
774: if ($only_one) {
775: $output .= (&Apache::loncommon::select_form($cur_values_inst[0],'new_'.$type,%meta_options));
776: } else {
777: $output .= (&Apache::loncommon::multiple_select_form('new_'.$type,\@cur_values_inst,undef,\%meta_options));
778: }
779: }
780: if ($stu_add) {
781: $output .= '<input type="text" name="'.$fieldname.'" size="'.$size.'" '.
782: 'value="'.$cur_values_stu.'" />'.
783: &relatedfield(1,$relatedsearchflag,$relatedsep,$fieldname,
784: $relatedvalue);
785: }
786: return ($output);
787: }
788: if (($type eq 'lowestgradelevel') ||
789: ($type eq 'highestgradelevel')) {
790: return &Apache::loncommon::select_level_form($value,$fieldname).
791: &relatedfield(0,$relatedsearchflag,$relatedsep);
792: }
793: return();
794: }
795: # Language
796: if ($type eq 'language') {
797: return &selectbox($fieldname,
798: $value,
799: \&Apache::loncommon::languagedescription,
800: (&Apache::loncommon::languageids)).
801: &relatedfield(0,$relatedsearchflag,$relatedsep);
802: }
803: # Copyright
804: if ($type eq 'copyright') {
805: return &selectbox($fieldname,
806: $value,
807: \&Apache::loncommon::copyrightdescription,
808: (&Apache::loncommon::copyrightids)).
809: &relatedfield(0,$relatedsearchflag,$relatedsep);
810: }
811: # Source Copyright
812: if ($type eq 'sourceavail') {
813: return &selectbox($fieldname,
814: $value,
815: \&Apache::loncommon::source_copyrightdescription,
816: (&Apache::loncommon::source_copyrightids)).
817: &relatedfield(0,$relatedsearchflag,$relatedsep);
818: }
819: # Gradelevels
820: if (($type eq 'lowestgradelevel') ||
821: ($type eq 'highestgradelevel')) {
822: return &Apache::loncommon::select_level_form($value,$fieldname).
823: &relatedfield(0,$relatedsearchflag,$relatedsep);
824: }
825: # Obsolete
826: if ($type eq 'obsolete') {
827: return '<input type="checkbox" name="'.$fieldname.'"'.
828: ($value?' checked="1"':'').' />'.
829: &relatedfield(0,$relatedsearchflag,$relatedsep);
830: }
831: # Obsolete replacement file
832: if ($type eq 'obsoletereplacement') {
833: return '<input type="text" name="'.$fieldname.
834: '" size="60" value="'.$value.'" /><a href="javascript:openbrowser'.
835: "('".$formname."','".$fieldname."'".
836: ",'')\">".&mt('Select').'</a>'.
837: &relatedfield(0,$relatedsearchflag,$relatedsep);
838: }
839: # Customdistribution file
840: if ($type eq 'customdistributionfile') {
841: return '<input type="text" name="'.$fieldname.
842: '" size="60" value="'.$value.'" /><a href="javascript:openbrowser'.
843: "('".$formname."','".$fieldname."'".
844: ",'rights')\">".&mt('Select').'</a>'.
845: &relatedfield(0,$relatedsearchflag,$relatedsep);
846: }
847: # Source Customdistribution file
848: if ($type eq 'sourcerights') {
849: return '<input type="text" name="'.$fieldname.
850: '" size="60" value="'.$value.'" /><a href="javascript:openbrowser'.
851: "('".$formname."','".$fieldname."'".
852: ",'rights')\">".&mt('Select').'</a>'.
853: &relatedfield(0,$relatedsearchflag,$relatedsep);
854: }
855: if ($type eq 'courserestricted') {
856: return (&select_course());
857: #return ('<input type="hidden" name="new_courserestricted" value="'.$course_key.'" />');
858: }
859:
860: # Dates
861: if (($type eq 'creationdate') ||
862: ($type eq 'lastrevisiondate')) {
863: return
864: &Apache::lonhtmlcommon::date_setter($formname,$fieldname,$value).
865: &relatedfield(0,$relatedsearchflag,$relatedsep);
866: }
867: # No pretty input found
868: $value=~s/^\s+//gs;
869: $value=~s/\s+$//gs;
870: $value=~s/\s+/ /gs;
871: $value=~s/\"/\"\;/gs;
872: return
873: '<input type="text" name="'.$fieldname.'" size="'.$size.'" '.
874: 'value="'.$value.'" />'.
875: &relatedfield(1,$relatedsearchflag,$relatedsep,$fieldname,
876: $relatedvalue);
877: }
878:
879: # Main Handler
880: sub handler {
881: my $r=shift;
882: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
883: ['currentpath','changecourse']);
884: my $uri=$r->uri;
885: #
886: # Set document type
887: &Apache::loncommon::content_type($r,'text/html');
888: $r->send_http_header;
889: return OK if $r->header_only;
890: my ($resdomain,$resuser)=
891: (&Apache::lonnet::declutter($uri)=~/^($match_domain)\/($match_username)\//);
892: if ($uri=~m:/adm/bombs/(.*)$:) {
893: $r->print(&Apache::loncommon::start_page('Error Messages'));
894: # Looking for all bombs?
895: &report_bombs($r,$uri);
896: } elsif ($uri=~m|^/editupload/[^/]+/[^/]+/portfolio/|) {
897: ($resdomain,$resuser)=
898: (&Apache::lonnet::declutter($uri)=~m|^($match_domain)/($match_name)/portfolio|);
899: $r->print(&Apache::loncommon::start_page('Edit Portfolio File Catalog Information',
900: undef,
901: {'domain' => $resdomain,}));
902: if ($env{'form.store'}) {
903: &present_editable_metadata($r,$uri,'portfolio');
904: } else {
905: my $fn=&Apache::lonnet::filelocation('',$uri);
906: %Apache::lonpublisher::metadatafields=();
907: %Apache::lonpublisher::metadatakeys=();
908: my $result=&Apache::lonnet::getfile($fn);
909: &Apache::lonpublisher::metaeval($result);
910: if ((!$Apache::lonpublisher::metadatafields{'courserestricted'}) ||
911: ($env{'form.changecourse'} eq 'true')) {
912: &pre_select_course($r,$uri);
913: } else {
914: &present_editable_metadata($r,$uri,'portfolio');
915: }
916: }
917: } elsif ($uri=~m|^/editupload/[^/]+/[^/]+/groups/|) {
918: $r->print(&Apache::loncommon::start_page('Edit Group Portfolio File Catalog Information',
919: undef,
920: {'domain' => $resdomain,}));
921: &present_editable_metadata($r,$uri,'groups');
922: } elsif ($uri=~m|^/~|) {
923: # Construction space
924: $r->print(&Apache::loncommon::start_page('Edit Catalog Information',
925: "\n".'<script type="text/javascript">'."\n".
926: &Apache::loncommon::browser_and_searcher_javascript().
927: "\n".'</script>',
928: {'domain' => $resdomain,}));
929: &present_editable_metadata($r,$uri);
930: } else {
931: $r->print(&Apache::loncommon::start_page('Metadata',
932: undef,
933: {'domain' => $resdomain,}));
934: &present_uneditable_metadata($r,$uri);
935: }
936: $r->print(&Apache::loncommon::end_page());
937: return OK;
938: }
939:
940: #####################################################
941: #####################################################
942: ### ###
943: ### Report Bombs ###
944: ### ###
945: #####################################################
946: #####################################################
947: sub report_bombs {
948: my ($r,$uri) = @_;
949: # Set document type
950: $uri =~ s:/adm/bombs/::;
951: $uri = &Apache::lonnet::declutter($uri);
952: $r->print('<h1>'.&Apache::lonnet::clutter($uri).'</h1>');
953: my ($domain,$author)=($uri=~/^($match_domain)\/($match_username)\//);
954: if (&Apache::loncacc::constructaccess('/~'.$author.'/',$domain)) {
955: if ($env{'form.clearbombs'}) {
956: &Apache::lonmsg::clear_author_res_msg($uri);
957: }
958: my $clear=&mt('Clear all Messages in Subdirectory');
959: my $cancel=&mt('Back to Directory');
960: my $cancelurl=$uri;
961: $cancelurl=~s/^\Q$domain\E/\/priv/;
962: $r->print(<<ENDCLEAR);
963: <form method="post">
964: <input type="submit" name="clearbombs" value="$clear" />
965: <a href="$cancelurl">$cancel</a>
966: </form><hr />
967: ENDCLEAR
968: my %brokenurls =
969: &Apache::lonmsg::all_url_author_res_msg($author,$domain);
970: foreach (sort(keys(%brokenurls))) {
971: if ($_=~/^\Q$uri\E/) {
972: $r->print
973: ('<a href="'.&Apache::lonnet::clutter($_).'">'.$_.'</a>'.
974: &Apache::lonmsg::retrieve_author_res_msg($_).
975: '<hr />');
976: }
977: }
978: } else {
979: $r->print(&mt('Not authorized'));
980: }
981: return;
982: }
983:
984: #####################################################
985: #####################################################
986: ### ###
987: ### Uneditable Metadata Display ###
988: ### ###
989: #####################################################
990: #####################################################
991: sub present_uneditable_metadata {
992: my ($r,$uri) = @_;
993: #
994: my $uploaded = ($uri =~ m|/uploaded/|);
995: my %content=();
996: # Read file
997: foreach (split(/\,/,&Apache::lonnet::metadata($uri,'keys'))) {
998: $content{$_}=&Apache::lonnet::metadata($uri,$_);
999: }
1000: # Render Output
1001: # displayed url
1002: my ($thisversion)=($uri=~/\.(\d+)\.(\w+)\.meta$/);
1003: $uri=~s/\.meta$//;
1004: my $disuri=&Apache::lonnet::clutter_with_no_wrapper($uri);
1005: # version
1006: my $versiondisplay='';
1007: if (!$uploaded) {
1008: my $currentversion=&Apache::lonnet::getversion($disuri);
1009: if ($thisversion) {
1010: $versiondisplay=&mt('Version').': '.$thisversion.
1011: ' ('.&mt('most recent version').': '.
1012: ($currentversion>0 ?
1013: $currentversion :
1014: &mt('information not available')).')';
1015: } else {
1016: $versiondisplay='Version: '.$currentversion;
1017: }
1018: }
1019: # crumbify displayed URL uri target prefix form size
1020: $disuri=&Apache::lonhtmlcommon::crumbs($disuri,undef, undef, undef,'+1');
1021: $disuri =~ s:<br />::g;
1022: # obsolete
1023: my $obsolete=$content{'obsolete'};
1024: my $obsoletewarning='';
1025: if (($obsolete) && ($env{'user.adv'})) {
1026: $obsoletewarning='<p><font color="red">'.
1027: &mt('This resource has been marked obsolete by the author(s)').
1028: '</font></p>';
1029: }
1030: #
1031: my %lt=&fieldnames();
1032: my $table='';
1033: my $title = $content{'title'};
1034: if (! defined($title)) {
1035: $title = 'Untitled Resource';
1036: }
1037: my @fields;
1038: if ($uploaded) {
1039: @fields = ('title','author','subject','keywords','notes','abstract',
1040: 'lowestgradelevel','highestgradelevel','standards','mime',
1041: 'owner');
1042: } else {
1043: @fields = ('title',
1044: 'author',
1045: 'subject',
1046: 'keywords',
1047: 'notes',
1048: 'abstract',
1049: 'lowestgradelevel',
1050: 'highestgradelevel',
1051: 'standards',
1052: 'mime',
1053: 'language',
1054: 'creationdate',
1055: 'lastrevisiondate',
1056: 'owner',
1057: 'copyright',
1058: 'customdistributionfile',
1059: 'sourceavail',
1060: 'sourcerights',
1061: 'obsolete',
1062: 'obsoletereplacement');
1063: }
1064: foreach my $field (@fields) {
1065: $table.='<tr><td bgcolor="#AAAAAA">'.$lt{$field}.
1066: '</td><td bgcolor="#CCCCCC">'.
1067: &prettyprint($field,$content{$field}).'</td></tr>';
1068: delete($content{$field});
1069: }
1070: #
1071: $r->print(<<ENDHEAD);
1072: <h2>$title</h2>
1073: <p>
1074: $disuri<br />
1075: $obsoletewarning
1076: $versiondisplay
1077: </p>
1078: <table cellspacing="2" border="0">
1079: $table
1080: </table>
1081: ENDHEAD
1082: if (!$uploaded && $env{'user.adv'}) {
1083: &print_dynamic_metadata($r,$uri,\%content);
1084: }
1085: return;
1086: }
1087:
1088: sub print_dynamic_metadata {
1089: my ($r,$uri,$content) = @_;
1090: #
1091: my %content = %$content;
1092: my %lt=&fieldnames();
1093: #
1094: my $description = 'Dynamic Metadata (updated periodically)';
1095: $r->print('<h3>'.&mt($description).'</h3>'.
1096: &mt('Processing'));
1097: $r->rflush();
1098: my %items=&fieldnames();
1099: my %dynmeta=&dynamicmeta($uri);
1100: #
1101: # General Access and Usage Statistics
1102: if (exists($dynmeta{'count'}) ||
1103: exists($dynmeta{'sequsage'}) ||
1104: exists($dynmeta{'comefrom'}) ||
1105: exists($dynmeta{'goto'}) ||
1106: exists($dynmeta{'course'})) {
1107: $r->print('<h4>'.&mt('Access and Usage Statistics').'</h4>'.
1108: '<table cellspacing="2" border="0">');
1109: foreach ('count',
1110: 'sequsage','sequsage_list',
1111: 'comefrom','comefrom_list',
1112: 'goto','goto_list',
1113: 'course','course_list') {
1114: $r->print('<tr><td bgcolor="#AAAAAA">'.$lt{$_}.'</td>'.
1115: '<td bgcolor="#CCCCCC">'.
1116: &prettyprint($_,$dynmeta{$_})."</td></tr>\n");
1117: }
1118: $r->print('</table>');
1119: } else {
1120: $r->print('<h4>'.&mt('No Access or Usages Statistics are available for this resource.').'</h4>');
1121: }
1122: #
1123: # Assessment statistics
1124: if ($uri=~/\.(problem|exam|quiz|assess|survey|form)$/) {
1125: if (exists($dynmeta{'stdno'}) ||
1126: exists($dynmeta{'avetries'}) ||
1127: exists($dynmeta{'difficulty'}) ||
1128: exists($dynmeta{'disc'})) {
1129: # This is an assessment, print assessment data
1130: $r->print('<h4>'.
1131: &mt('Overall Assessment Statistical Data').
1132: '</h4>'.
1133: '<table cellspacing="2" border="0">');
1134: $r->print('<tr><td bgcolor="#AAAAAA">'.$lt{'stdno'}.'</td>'.
1135: '<td bgcolor="#CCCCCC">'.
1136: &prettyprint('stdno',$dynmeta{'stdno'}).
1137: '</td>'."</tr>\n");
1138: foreach ('avetries','difficulty','disc') {
1139: $r->print('<tr><td bgcolor="#AAAAAA">'.$lt{$_}.'</td>'.
1140: '<td bgcolor="#CCCCCC">'.
1141: &prettyprint($_,sprintf('%5.2f',$dynmeta{$_})).
1142: '</td>'."</tr>\n");
1143: }
1144: $r->print('</table>');
1145: }
1146: if (exists($dynmeta{'stats'})) {
1147: #
1148: # New assessment statistics
1149: $r->print('<h4>'.
1150: &mt('Recent Detailed Assessment Statistical Data').
1151: '</h4>');
1152: my $table = '<table cellspacing="2" border="0">'.
1153: '<tr>'.
1154: '<th>'.&mt('Course').'</th>'.
1155: '<th>'.&mt('Section(s)').'</th>'.
1156: '<th>'.&mt('Num Student').'s</th>'.
1157: '<th>'.&mt('Mean Tries').'</th>'.
1158: '<th>'.&mt('Degree of Difficulty').'</th>'.
1159: '<th>'.&mt('Degree of Discrimination').'</th>'.
1160: '<th>'.&mt('Time of computation').'</th>'.
1161: '</tr>'.$/;
1162: foreach my $identifier (sort(keys(%{$dynmeta{'stats'}}))) {
1163: my $data = $dynmeta{'stats'}->{$identifier};
1164: my $course = $data->{'course'};
1165: my %courseinfo =
1166: &Apache::lonnet::coursedescription($course,
1167: {'one_time' => 1});
1168: if (! exists($courseinfo{'num'}) || $courseinfo{'num'} eq '') {
1169: &Apache::lonnet::logthis('lookup for '.$course.' failed');
1170: next;
1171: }
1172: $table .= '<tr>';
1173: $table .=
1174: '<td><nobr>'.$courseinfo{'description'}.'</nobr></td>';
1175: $table .=
1176: '<td align="right">'.$data->{'sections'}.'</td>';
1177: $table .=
1178: '<td align="right">'.$data->{'stdno'}.'</td>';
1179: foreach ('avetries','difficulty','disc') {
1180: $table .= '<td align="right">';
1181: if (exists($data->{$_})) {
1182: $table .= sprintf('%.2f',$data->{$_}).' ';
1183: } else {
1184: $table .= '';
1185: }
1186: $table .= '</td>';
1187: }
1188: $table .=
1189: '<td><nobr>'.
1190: &Apache::lonlocal::locallocaltime($data->{'timestamp'}).
1191: '</nobr></td>';
1192: $table .=
1193: '</tr>'.$/;
1194: }
1195: $table .= '</table>'.$/;
1196: $r->print($table);
1197: } else {
1198: $r->print(&mt('No new dynamic data found.'));
1199: }
1200: } else {
1201: $r->print('<h4>'.
1202: &mt('No Assessment Statistical Data is available for this resource').
1203: '</h4>');
1204: }
1205:
1206: #
1207: #
1208: if (exists($dynmeta{'clear'}) ||
1209: exists($dynmeta{'depth'}) ||
1210: exists($dynmeta{'helpful'}) ||
1211: exists($dynmeta{'correct'}) ||
1212: exists($dynmeta{'technical'})){
1213: $r->print('<h4>'.&mt('Evaluation Data').'</h4>'.
1214: '<table cellspacing="2" border="0">');
1215: foreach ('clear','depth','helpful','correct','technical') {
1216: $r->print('<tr><td bgcolor="#AAAAAA">'.$lt{$_}.'</td>'.
1217: '<td bgcolor="#CCCCCC">'.
1218: &prettyprint($_,$dynmeta{$_})."</td></tr>\n");
1219: }
1220: $r->print('</table>');
1221: } else {
1222: $r->print('<h4>'.&mt('No Evaluation Data is available for this resource.').'</h4>');
1223: }
1224: $uri=~/^\/res\/($match_domain)\/($match_username)\//;
1225: if ((($env{'user.domain'} eq $1) && ($env{'user.name'} eq $2))
1226: || ($env{'user.role.ca./'.$1.'/'.$2})) {
1227: if (exists($dynmeta{'comments'})) {
1228: $r->print('<h4>'.&mt('Evaluation Comments').' ('.
1229: &mt('visible to author and co-authors only').
1230: ')</h4>'.
1231: '<blockquote>'.$dynmeta{'comments'}.'</blockquote>');
1232: } else {
1233: $r->print('<h4>'.&mt('There are no Evaluation Comments on this resource.').'</h4>');
1234: }
1235: my $bombs = &Apache::lonmsg::retrieve_author_res_msg($uri);
1236: if (defined($bombs) && $bombs ne '') {
1237: $r->print('<a name="bombs" /><h4>'.&mt('Error Messages').' ('.
1238: &mt('visible to author and co-authors only').')'.
1239: '</h4>'.$bombs);
1240: } else {
1241: $r->print('<h4>'.&mt('There are currently no Error Messages for this resource.').'</h4>');
1242: }
1243: }
1244: #
1245: # All other stuff
1246: $r->print('<h3>'.
1247: &mt('Additional Metadata (non-standard, parameters, exports)').
1248: '</h3><table border="0" cellspacing="1">');
1249: foreach (sort(keys(%content))) {
1250: my $name=$_;
1251: if ($name!~/\.display$/) {
1252: my $display=&Apache::lonnet::metadata($uri,
1253: $name.'.display');
1254: if (! $display) {
1255: $display=$name;
1256: };
1257: my $otherinfo='';
1258: foreach ('name','part','type','default') {
1259: if (defined(&Apache::lonnet::metadata($uri,
1260: $name.'.'.$_))) {
1261: $otherinfo.=' '.$_.'='.
1262: &Apache::lonnet::metadata($uri,
1263: $name.'.'.$_).'; ';
1264: }
1265: }
1266: $r->print('<tr><td bgcolor="#bbccbb"><font size="-1" color="#556655">'.$display.'</font></td><td bgcolor="#ccddcc"><font size="-1" color="#556655">'.$content{$name});
1267: if ($otherinfo) {
1268: $r->print(' ('.$otherinfo.')');
1269: }
1270: $r->print("</font></td></tr>\n");
1271: }
1272: }
1273: $r->print("</table>");
1274: return;
1275: }
1276:
1277:
1278:
1279: #####################################################
1280: #####################################################
1281: ### ###
1282: ### Editable metadata display ###
1283: ### ###
1284: #####################################################
1285: #####################################################
1286: sub present_editable_metadata {
1287: my ($r,$uri,$file_type) = @_;
1288: # Construction Space Call
1289: # Header
1290: my $disuri=$uri;
1291: my $fn=&Apache::lonnet::filelocation('',$uri);
1292: $disuri=~s{^/\~}{/priv/};
1293: $disuri=~s/\.meta$//;
1294: my $meta_uri = $disuri;
1295: my $path;
1296: if ($disuri =~ m|/portfolio/|) {
1297: ($disuri, $meta_uri, $path) = &portfolio_display_uri($disuri,1);
1298: }
1299: my $target=$uri;
1300: $target=~s{^/\~}{/res/$env{'request.role.domain'}/};
1301: $target=~s/\.meta$//;
1302: my $bombs=&Apache::lonmsg::retrieve_author_res_msg($target);
1303: if ($bombs) {
1304: my $showdel=1;
1305: if ($env{'form.delmsg'}) {
1306: if (&Apache::lonmsg::del_url_author_res_msg($target) eq 'ok') {
1307: $bombs=&mt('Messages deleted.');
1308: $showdel=0;
1309: } else {
1310: $bombs=&mt('Error deleting messages');
1311: }
1312: }
1313: if ($env{'form.clearmsg'}) {
1314: my $cleardir=$target;
1315: $cleardir=~s/\/[^\/]+$/\//;
1316: if (&Apache::lonmsg::clear_author_res_msg($cleardir) eq 'ok') {
1317: $bombs=&mt('Messages cleared.');
1318: $showdel=0;
1319: } else {
1320: $bombs=&mt('Error clearing messages');
1321: }
1322: }
1323: my $del=&mt('Delete Messages for this Resource');
1324: my $clear=&mt('Clear all Messages in Subdirectory');
1325: my $goback=&mt('Back to Source File');
1326: $r->print(<<ENDBOMBS);
1327: <h1>$disuri</h1>
1328: <form method="post" action="" name="defaultmeta">
1329: ENDBOMBS
1330: if ($showdel) {
1331: $r->print(<<ENDDEL);
1332: <input type="submit" name="delmsg" value="$del" />
1333: <input type="submit" name="clearmsg" value="$clear" />
1334: ENDDEL
1335: } else {
1336: $r->print('<p><a href="'.$disuri.'">'.$goback.'</a></p>');
1337: if ($env{'form.clearmsg'}) {
1338: my ($diruri) = ($disuri =~ m{(.*/)[^/]*});
1339: $r->print('<p><a href="'.$diruri.'">'.
1340: &mt('Back To Directory').'</a></p>');
1341: }
1342: }
1343: $r->print('<br />'.$bombs);
1344: } else {
1345: my $displayfile=&mt('Metadata for [_1]',$disuri);
1346: if ($disuri=~/\/default$/) {
1347: my $dir=$disuri;
1348: $dir=~s/default$//;
1349: $displayfile=&mt('Default Metadata for Directory [_1]',$dir);
1350: }
1351: %Apache::lonpublisher::metadatafields=();
1352: %Apache::lonpublisher::metadatakeys=();
1353: my $result=&Apache::lonnet::getfile($fn);
1354: if ($result == -1){
1355: $r->print(&mt('Creating new file [_1]'),$meta_uri);
1356: } else {
1357: &Apache::lonpublisher::metaeval($result);
1358: }
1359: if ($env{'form.new_courserestricted'}) {
1360: my $new_assoc_course = $env{'form.new_courserestricted'};
1361: my $prev_courserestricted = $Apache::lonpublisher::metadatafields{'courserestricted'};
1362: if (($prev_courserestricted) &&
1363: ($prev_courserestricted ne $new_assoc_course)) {
1364: my $transfers = [];
1365: foreach my $key (keys(%env)) {
1366: if ($key =~ /^form\.transfer_(.+)$/) {
1367: push(@{$transfers},$1);
1368: }
1369: }
1370: if (@{$transfers} > 0) {
1371: &store_transferred_addedfields($fn,$uri,$transfers);
1372: }
1373: }
1374: }
1375: $r->print(<<ENDEDIT);
1376: <h1>$displayfile</h1>
1377: <form method="post" action="" name="defaultmeta">
1378: ENDEDIT
1379: my %lt=&fieldnames($file_type);
1380: my $output;
1381: my @fields;
1382: my $added_metadata_fields;
1383: my @added_order;
1384: if ($file_type eq 'groups') {
1385: $Apache::lonpublisher::metadatafields{'courserestricted'}=
1386: 'course.'.$env{'request.course.id'};
1387: }
1388: if ((! $Apache::lonpublisher::metadatafields{'courserestricted'}) &&
1389: (! $env{'form.new_courserestricted'}) && (! $file_type eq 'groups')) {
1390: $Apache::lonpublisher::metadatafields{'courserestricted'}=
1391: 'none';
1392: } elsif ($env{'form.new_courserestricted'}) {
1393: $Apache::lonpublisher::metadatafields{'courserestricted'}=
1394: $env{'form.new_courserestricted'};
1395: }
1396: if ($file_type eq 'portfolio' || $file_type eq 'groups') {
1397: if(exists ($env{$Apache::lonpublisher::metadatafields{'courserestricted'}.'.metadata.fieldlist'})) {
1398: # retrieve fieldnames (in order) from the course restricted list
1399: @fields = (split(/,/,$env{$Apache::lonpublisher::metadatafields{'courserestricted'}.'.metadata.fieldlist'}));
1400: } else {
1401: # no saved field list, use default list
1402: @fields = ('author','title','subject','keywords','abstract',
1403: 'notes','lowestgradelevel',
1404: 'highestgradelevel','standards');
1405: if ($Apache::lonpublisher::metadatafields{'courserestricted'} =~ /^course\.($match_domain\_$match_courseid)$/) {
1406: my $assoc_crs = $1;
1407: $added_metadata_fields = &Apache::lonparmset::get_added_meta_fieldnames($assoc_crs);
1408: if ($env{'course.'.$assoc_crs.'.metadata.addedorder'}) {
1409: @added_order = split(/,/,$env{'course.'.$assoc_crs.'.metadata.addedorder'});
1410: }
1411: $env{$Apache::lonpublisher::metadatafields{'courserestricted'}.'.metadata.fieldlist'} = join(",",@fields);
1412: }
1413: }
1414: } else {
1415: @fields = ('author','title','subject','keywords','abstract','notes',
1416: 'copyright','customdistributionfile','language',
1417: 'standards',
1418: 'lowestgradelevel','highestgradelevel','sourceavail','sourcerights',
1419: 'obsolete','obsoletereplacement');
1420: }
1421: if (! $Apache::lonpublisher::metadatafields{'copyright'}) {
1422: $Apache::lonpublisher::metadatafields{'copyright'}=
1423: 'default';
1424: }
1425: if (($file_type eq 'portfolio') || ($file_type eq 'groups')) {
1426: if (! $Apache::lonpublisher::metadatafields{'mime'}) {
1427: ($Apache::lonpublisher::metadatafields{'mime'}) =
1428: ( $target=~/\.(\w+)$/ );
1429: }
1430: if (! $Apache::lonpublisher::metadatafields{'owner'}) {
1431: $Apache::lonpublisher::metadatafields{'owner'} =
1432: $env{'user.name'}.':'.$env{'user.domain'};
1433: }
1434: if (! $Apache::lonpublisher::metadatafields{'author'}) {
1435: $Apache::lonpublisher::metadatafields{'author'} =
1436: &Apache::loncommon::plainname($env{'user.name'},
1437: $env{'user.domain'});
1438: }
1439: if ($Apache::lonpublisher::metadatafields{'courserestricted'} ne 'none') {
1440:
1441: if ($file_type eq 'portfolio') {
1442: $r->print(&mt('Associated with course [_1]',
1443: '<strong><a href="'.$uri.'?changecourse=true">'.
1444: $env{$Apache::lonpublisher::metadatafields{'courserestricted'}.
1445: ".description"}.
1446: '</a></strong>').'<br />');
1447: } else {
1448: $r->print(&mt('Associated with course [_1]',
1449: '<strong>'.
1450: $env{$Apache::lonpublisher::metadatafields{'courserestricted'}.
1451: ".description"}.'</strong>').'<br />');
1452: }
1453: } else {
1454: $r->print('<a href="'.$uri.'?changecourse=true">'.&mt('This resource is not associated with a course.').'</a><br />');
1455: }
1456: }
1457: if (@added_order) {
1458: foreach my $field_name (@added_order) {
1459: push(@fields,$field_name);
1460: $lt{$field_name} = $$added_metadata_fields{$field_name};
1461: }
1462: } else {
1463: foreach my $field_name (keys(%$added_metadata_fields)) {
1464: push(@fields,$field_name);
1465: $lt{$field_name} = $$added_metadata_fields{$field_name};
1466: }
1467: }
1468: $output .= &Apache::loncommon::start_data_table();
1469: my $row_alt = 1;
1470: foreach my $field_name (@fields) {
1471: if (defined($env{'form.new_'.$field_name})) {
1472: my @values = &Apache::loncommon::get_env_multiple('form.new_'.$field_name);
1473: my $newvalue = '';
1474: foreach my $item (@values) {
1475: if ($item ne '') {
1476: $newvalue .= $item.',';
1477: }
1478: }
1479: $newvalue =~ s/,$//;
1480: $Apache::lonpublisher::metadatafields{$field_name}=$newvalue;
1481: }
1482: if ($Apache::lonpublisher::metadatafields{'courserestricted'} ne 'none'
1483: && exists($env{$Apache::lonpublisher::metadatafields{'courserestricted'}.'.metadata.'.$field_name.'.options'})) {
1484: # handle restrictions here
1485: if ((($env{$Apache::lonpublisher::metadatafields{'courserestricted'}.'.metadata.'.$field_name.'.options'} =~ m/active/) ||
1486: ($field_name eq 'courserestricted'))&&
1487: (!($env{$Apache::lonpublisher::metadatafields{'courserestricted'}.'.metadata.'.$field_name.'.options'} =~ m/deleted/))){
1488:
1489: $output .= "\n".&Apache::loncommon::start_data_table_row();
1490: $output .= ('<td><span class="LC_metadata">'.$lt{$field_name}.':</span></td><td> '.
1491: &prettyinput($field_name,
1492: $Apache::lonpublisher::metadatafields{$field_name},
1493: 'new_'.$field_name,'defaultmeta',
1494: undef,undef,undef,undef,
1495: $Apache::lonpublisher::metadatafields{'courserestricted'}).'</td>');
1496: $output .= &Apache::loncommon::end_data_table_row();
1497: }
1498: } else {
1499:
1500: $output.=(&Apache::loncommon::start_data_table_row().'<td><span class="LC_metadata">'.$lt{$field_name}.':</span></td><td> '.
1501: &prettyinput($field_name,
1502: $Apache::lonpublisher::metadatafields{$field_name},
1503: 'new_'.$field_name,'defaultmeta').'</td>'.&Apache::loncommon::end_data_table_row());
1504:
1505: }
1506: }
1507: $output .= &Apache::loncommon::end_data_table();
1508: if ($env{'form.store'}) {
1509: my ($outcome,$result) = &store_metadata($fn,$uri,'store');
1510: $r->print($result);
1511: }
1512: $r->print($output.'<br /><input type="submit" title="Save Metadata" name="store" value="'.
1513: &mt('Save').'" />');
1514:
1515: if ($file_type eq 'portfolio' || $file_type eq 'groups') {
1516: my ($port_path,$group) = &get_port_path_and_group($uri);
1517: if ($group ne '') {
1518: $r->print('<input type="hidden" name="group" value="'.$group.'" />');
1519: }
1520: $r->print('<input type="hidden" name="currentpath" value="'.$env{'form.currentpath'}.'" />');
1521: $r->print('</form><br /><br /><form method="post" action="'.$port_path.'">');
1522: if ($group ne '') {
1523: $r->print('<input type="hidden" name="group" value="'.$group.'" />');
1524: }
1525: $r->print('<input type="hidden" name="currentpath" value="'.$path.'" />'.
1526: '<input type="submit" name="cancel" value="'.&mt('Discard Edits and Return to Portfolio').'" />');
1527: }
1528: }
1529:
1530: $r->print('</form>');
1531:
1532: return;
1533: }
1534:
1535: sub store_metadata {
1536: my ($fn,$uri,$caller) = @_;
1537: my $mfh;
1538: my $formname='store';
1539: my ($file_content,$output,$outcome);
1540: if (&Apache::loncommon::get_env_multiple('form.new_keywords')) {
1541: $Apache::lonpublisher::metadatafields{'keywords'} =
1542: join (',', &Apache::loncommon::get_env_multiple('form.new_keywords'));
1543: }
1544: foreach my $field (sort(keys(%Apache::lonpublisher::metadatafields))) {
1545: next if ($field =~ /\./);
1546: my $unikey=$field;
1547: $unikey=~/^([A-Za-z_]+)/;
1548: my $tag=$1;
1549: $tag=~tr/A-Z/a-z/;
1550: $file_content.= "\n\<$tag";
1551: foreach my $key (split(/\,/,$Apache::lonpublisher::metadatakeys{$unikey})) {
1552: my $value = $Apache::lonpublisher::metadatafields{$unikey.'.'.$key};
1553: $value=~s/\"/\'\'/g;
1554: $file_content.=' '.$key.'="'.$value.'"' ;
1555: }
1556: $file_content.= '>'.
1557: &HTML::Entities::encode
1558: ($Apache::lonpublisher::metadatafields{$unikey},'<>&"').
1559: '</'.$tag.'>';
1560: }
1561: if ($fn =~ m|^$Apache::lonnet::perlvar{'lonDocRoot'}/userfiles|) {
1562: my ($path, $new_fn);
1563: if ($fn =~ m|$match_name/groups/\w+/portfolio/|) {
1564: ($path, $new_fn) = ($fn =~ m|/(groups/\w+/portfolio.*)/([^/]*)$|);
1565: } else {
1566: ($path, $new_fn) = ($fn =~ m|/(portfolio.*)/([^/]*)$|);
1567: }
1568: ($outcome,my $result) =
1569: &store_portfolio_metadata($formname,$file_content,
1570: $path,$new_fn,$uri,$caller);
1571: $output .= $result;
1572: } else {
1573: if (! ($mfh=Apache::File->new('>'.$fn))) {
1574: $output .= '<p><font color="red">';
1575: if ($caller eq 'transfer') {
1576: $output .= &mt('Could not transfer data in added fields to notes');
1577: } else {
1578: $output .= &mt('Could not write metadata');
1579: }
1580: $output .= ', '.&mt('FAIL').'</font></p>';
1581: $outcome = 'fail';
1582: } else {
1583: print $mfh ($file_content);
1584: close($mfh);
1585: &update_metadata_table($uri);
1586: $output .= '<p><font color="blue">';
1587: if ($caller eq 'transfer') {
1588: $output .= &mt('Transferred data in added fields to notes');
1589: } else {
1590: $output .= &mt('Wrote Metadata');
1591: }
1592: $output .= ' '.&Apache::lonlocal::locallocaltime(time).
1593: '</font></p>';
1594: $outcome = 'ok';
1595: }
1596: }
1597: return ($outcome,$output);
1598: }
1599:
1600: sub store_transferred_addedfields {
1601: my ($fn,$uri,$transfers) = @_;
1602: foreach my $item (@{$transfers}) {
1603: $Apache::lonpublisher::metadatafields{'notes'} .=
1604: ' '.$item.' = '.$Apache::lonpublisher::metadatafields{$item};
1605: }
1606: my ($outcome,$output) = &store_metadata($fn,$uri,'transfer');
1607: if ($outcome eq 'ok') {
1608: foreach my $item (@{$transfers}) {
1609: delete($Apache::lonpublisher::metadatafields{$item});
1610: }
1611: }
1612: }
1613:
1614: sub store_portfolio_metadata {
1615: my ($formname,$content,$path,$new_fn,$uri,$caller) = @_;
1616: my ($outcome,$output);
1617: $env{'form.'.$formname}=$content."\n";
1618: $env{'form.'.$formname.'.filename'}=$new_fn;
1619: my $result =&Apache::lonnet::userfileupload($formname,'',$path);
1620: if ($result =~ /(error|notfound)/) {
1621: $output = '<p><font color="red">';
1622: if ($caller eq 'transfer') {
1623: $output .=
1624: &mt('Could not transfer data in added fields to notes');
1625: } else {
1626: $output .= &mt('Could not write metadata');
1627: }
1628: $output .= ', '.&mt('FAIL').'</font></p>';
1629: $outcome = 'fail';
1630: } else {
1631: &update_metadata_table($uri);
1632: $output = '<p><font color="blue">';
1633: if ($caller eq 'transfer') {
1634: $output .= &mt('Transferred data in added fields to notes');
1635: } else {
1636: $output .= &mt('Wrote Metadata');
1637: }
1638: $output .= ' '.&Apache::lonlocal::locallocaltime(time).
1639: '</font></p>';
1640: $outcome = 'ok';
1641: }
1642: return ($outcome,$output);
1643: }
1644:
1645: sub update_metadata_table {
1646: my ($uri) = @_;
1647: my ($type,$udom,$uname,$file_name,$group) =
1648: &Apache::lonnet::parse_portfolio_url($uri);
1649: $file_name =~ s/\.meta$//;
1650: my $current_permissions =
1651: &Apache::lonnet::get_portfile_permissions($udom,$uname);
1652: my %access_controls =
1653: &Apache::lonnet::get_access_controls($current_permissions,$group,
1654: $file_name);
1655: my $access_hash = $access_controls{$file_name};
1656: my $available = 0;
1657: if (ref($access_hash) eq 'HASH') {
1658: foreach my $key (keys(%{$access_hash})) {
1659: my ($num,$scope,$end,$start) =
1660: ($key =~ /^([^:]+):([a-z]+)_(\d*)_?(\d*)$/);
1661: if ($scope eq 'public' || $scope eq 'guest') {
1662: $available = 1;
1663: last;
1664: }
1665: }
1666: }
1667: if ($available) {
1668: my $result =
1669: &Apache::lonnet::update_portfolio_table($uname,$udom,
1670: $file_name,'portfolio_metadata',$group,'update');
1671: }
1672: }
1673:
1674:
1675: 1;
1676: __END__
1677:
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