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1: # The LearningOnline Network with CAPA
2: # Metadata display handler
3: #
4: # $Id: lonmeta.pm,v 1.212 2008/03/06 20:20:18 www 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: use LONCAPA qw(:DEFAULT :match);
43:
44:
45: ############################################################
46: ############################################################
47: ##
48: ## &get_dynamic_metadata_from_sql($url)
49: ##
50: ## Queries sql database for dynamic metdata
51: ## Returns a hash of hashes, with keys of urls which match $url
52: ## Returned fields are given below.
53: ##
54: ## Examples:
55: ##
56: ## %DynamicMetadata = &Apache::lonmeta::get_dynmaic_metadata_from_sql
57: ## ('/res/msu/korte/');
58: ##
59: ## $DynamicMetadata{'/res/msu/korte/example.problem'}->{$field}
60: ##
61: ############################################################
62: ############################################################
63: sub get_dynamic_metadata_from_sql {
64: my ($url) = shift();
65: my ($authordom,$author)=($url=~m{^/res/($match_domain)/($match_username)/});
66: if (! defined($authordom)) {
67: $authordom = shift();
68: }
69: if (! defined($author)) {
70: $author = shift();
71: }
72: if (! defined($authordom) || ! defined($author)) {
73: return ();
74: }
75: my $query = 'SELECT * FROM metadata WHERE url LIKE "'.$url.'%"';
76: my $server = &Apache::lonnet::homeserver($author,$authordom);
77: my $reply = &Apache::lonnet::metadata_query($query,undef,undef,
78: ,[$server]);
79: return () if (! defined($reply) || ref($reply) ne 'HASH');
80: my $filename = $reply->{$server};
81: if (! defined($filename) || $filename =~ /^error/) {
82: return ();
83: }
84: my $max_time = time + 10; # wait 10 seconds for results at most
85: my %ReturnHash;
86: #
87: # Look for results
88: my $finished = 0;
89: while (! $finished && time < $max_time) {
90: my $datafile=$Apache::lonnet::perlvar{'lonDaemons'}.'/tmp/'.$filename;
91: if (! -e "$datafile.end") { next; }
92: my $fh;
93: if (!($fh=Apache::File->new($datafile))) { next; }
94: while (my $result = <$fh>) {
95: chomp($result);
96: next if (! $result);
97: my %hash=&LONCAPA::lonmetadata::metadata_col_to_hash('metadata',
98: map { &unescape($_) } split(/\,/,$result));
99: foreach my $key (keys(%hash)) {
100: $ReturnHash{$hash{'url'}}->{$key}=$hash{$key};
101: }
102: }
103: $finished = 1;
104: }
105: #
106: return %ReturnHash;
107: }
108:
109:
110: # Fetch and evaluate dynamic metadata
111: sub dynamicmeta {
112: my $url=&Apache::lonnet::declutter(shift);
113: $url=~s/\.meta$//;
114: my ($adomain,$aauthor)=($url=~/^($match_domain)\/($match_username)\//);
115: my $regexp=$url;
116: $regexp=~s/(\W)/\\$1/g;
117: $regexp='___'.$regexp.'___';
118: my %evaldata=&Apache::lonnet::dump('nohist_resevaldata',$adomain,
119: $aauthor,$regexp);
120: my %DynamicData = &LONCAPA::lonmetadata::process_reseval_data(\%evaldata);
121: my %Data = &LONCAPA::lonmetadata::process_dynamic_metadata($url,
122: \%DynamicData);
123: #
124: # Deal with 'count' separately
125: $Data{'count'} = &access_count($url,$aauthor,$adomain);
126: #
127: # Debugging code I will probably need later
128: if (0) {
129: &Apache::lonnet::logthis('Dynamic Metadata');
130: while(my($k,$v)=each(%Data)){
131: &Apache::lonnet::logthis(' "'.$k.'"=>"'.$v.'"');
132: }
133: &Apache::lonnet::logthis('-------------------');
134: }
135: return %Data;
136: }
137:
138: sub access_count {
139: my ($src,$author,$adomain) = @_;
140: my %countdata=&Apache::lonnet::dump('nohist_accesscount',$adomain,
141: $author,$src);
142: if (! exists($countdata{$src})) {
143: return &mt('Not Available');
144: } else {
145: return $countdata{$src};
146: }
147: }
148:
149: # Try to make an alt tag if there is none
150: sub alttag {
151: my ($base,$src)=@_;
152: my $fullpath=&Apache::lonnet::hreflocation($base,$src);
153: my $alttag=&Apache::lonnet::metadata($fullpath,'title').' '.
154: &Apache::lonnet::metadata($fullpath,'subject').' '.
155: &Apache::lonnet::metadata($fullpath,'abstract');
156: $alttag=~s/\s+/ /gs;
157: $alttag=~s/\"//gs;
158: $alttag=~s/\'//gs;
159: $alttag=~s/\s+$//gs;
160: $alttag=~s/^\s+//gs;
161: if ($alttag) {
162: return $alttag;
163: } else {
164: return &mt('No information available');
165: }
166: }
167:
168: # Author display
169: sub authordisplay {
170: my ($aname,$adom)=@_;
171: return &Apache::loncommon::aboutmewrapper
172: (&Apache::loncommon::plainname($aname,$adom),
173: $aname,$adom,'preview').' <tt>['.$aname.':'.$adom.']</tt>';
174: }
175:
176: # Pretty display
177: sub evalgraph {
178: my $value=shift;
179: if (! $value) {
180: return '';
181: }
182: my $val=int($value*10.+0.5)-10;
183: my $output='<table border="0" cellpadding="0" cellspacing="0"><tr>';
184: if ($val>=20) {
185: $output.='<td width="20" bgcolor="#555555">  </td>';
186: } else {
187: $output.='<td width="'.($val).'" bgcolor="#555555"> </td>'.
188: '<td width="'.(20-$val).'" bgcolor="#FF3333"> </td>';
189: }
190: $output.='<td bgcolor="#FFFF33"> </td>';
191: if ($val>20) {
192: $output.='<td width="'.($val-20).'" bgcolor="#33FF33"> </td>'.
193: '<td width="'.(40-$val).'" bgcolor="#555555"> </td>';
194: } else {
195: $output.='<td width="20" bgcolor="#555555">  </td>';
196: }
197: $output.='<td> ('.sprintf("%5.2f",$value).') </td></tr></table>';
198: return $output;
199: }
200:
201: sub diffgraph {
202: my $value=shift;
203: if (! $value) {
204: return '';
205: }
206: my $val=int(40.0*$value+0.5);
207: my @colors=('#FF9933','#EEAA33','#DDBB33','#CCCC33',
208: '#BBDD33','#CCCC33','#DDBB33','#EEAA33');
209: my $output='<table border="0" cellpadding="0" cellspacing="0"><tr>';
210: for (my $i=0;$i<8;$i++) {
211: if ($val>$i*5) {
212: $output.='<td width="5" bgcolor="'.$colors[$i].'"> </td>';
213: } else {
214: $output.='<td width="5" bgcolor="#555555"> </td>';
215: }
216: }
217: $output.='<td> ('.sprintf("%3.2f",$value).') </td></tr></table>';
218: return $output;
219: }
220:
221:
222: # The field names
223: sub fieldnames {
224: my $file_type=shift;
225: my %fields =
226: ('title' => 'Title',
227: 'author' =>'Author(s)',
228: 'authorspace' => 'Author Space',
229: 'modifyinguser' => 'Last Modifying User',
230: 'subject' => 'Subject',
231: 'standards' => 'Standards',
232: 'keywords' => 'Keyword(s)',
233: 'notes' => 'Notes',
234: 'abstract' => 'Abstract',
235: 'lowestgradelevel' => 'Lowest Grade Level',
236: 'highestgradelevel' => 'Highest Grade Level');
237:
238: if ( !defined($file_type) || ($file_type ne 'portfolio' && $file_type ne 'groups') ) {
239: %fields =
240: (%fields,
241: 'domain' => 'Domain',
242: 'mime' => 'MIME Type',
243: 'language' => 'Language',
244: 'creationdate' => 'Creation Date',
245: 'lastrevisiondate' => 'Last Revision Date',
246: 'owner' => 'Publisher/Owner',
247: 'copyright' => 'Copyright/Distribution',
248: 'customdistributionfile' => 'Custom Distribution File',
249: 'sourceavail' => 'Source Available',
250: 'sourcerights' => 'Source Custom Distribution File',
251: 'obsolete' => 'Obsolete',
252: 'obsoletereplacement' => 'Suggested Replacement for Obsolete File',
253: 'count' => 'Network-wide number of accesses (hits)',
254: 'course' => 'Network-wide number of courses using resource',
255: 'course_list' => 'Network-wide courses using resource',
256: 'sequsage' => 'Number of resources using or importing resource',
257: 'sequsage_list' => 'Resources using or importing resource',
258: 'goto' => 'Number of resources that follow this resource in maps',
259: 'goto_list' => 'Resources that follow this resource in maps',
260: 'comefrom' => 'Number of resources that lead up to this resource in maps',
261: 'comefrom_list' => 'Resources that lead up to this resource in maps',
262: 'clear' => 'Material presented in clear way',
263: 'depth' => 'Material covered with sufficient depth',
264: 'helpful' => 'Material is helpful',
265: 'correct' => 'Material appears to be correct',
266: 'technical' => 'Resource is technically correct',
267: 'avetries' => 'Average number of tries till solved',
268: 'stdno' => 'Statistics calculated for number of students',
269: 'difficulty' => 'Degree of difficulty',
270: 'disc' => 'Degree of discrimination',
271: 'dependencies' => 'Resources used by this resource',
272: );
273: }
274: return &Apache::lonlocal::texthash(%fields);
275: }
276:
277: sub portfolio_linked_path {
278: my ($path,$group,$port_path) = @_;
279:
280: my $start = 'portfolio';
281: if ($group) {
282: $start = "groups/$group/".$start;
283: }
284: my %anchor_fields = (
285: 'selectfile' => $start,
286: 'currentpath' => '/'
287: );
288: my $result = &Apache::portfolio::make_anchor($port_path,\%anchor_fields,$start);
289: my $fullpath = '/';
290: my (undef,@tree) = split('/',$path);
291: my $filename = pop(@tree);
292: foreach my $dir (@tree) {
293: $fullpath .= $dir.'/';
294: $result .= '/';
295: my %anchor_fields = (
296: 'selectfile' => $dir,
297: 'currentpath' => $fullpath
298: );
299: $result .= &Apache::portfolio::make_anchor($port_path,\%anchor_fields,$dir);
300: }
301: $result .= "/$filename";
302: return $result;
303: }
304:
305: sub get_port_path_and_group {
306: my ($uri)=@_;
307:
308: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
309: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
310:
311: my ($port_path,$group);
312: if ($uri =~ m{^/editupload/\Q$cdom\E/\Q$cnum\E/groups/}) {
313: $group = (split('/',$uri))[5];
314: $port_path = '/adm/coursegrp_portfolio';
315: } else {
316: $port_path = '/adm/portfolio';
317: }
318: if ($env{'form.group'} ne $group) {
319: $env{'form.group'} = $group;
320: }
321: return ($port_path,$group);
322: }
323:
324: sub portfolio_display_uri {
325: my ($uri,$as_links)=@_;
326:
327: my ($port_path,$group) = &get_port_path_and_group($uri);
328:
329: $uri =~ s|.*/(portfolio/.*)$|$1|;
330: my ($res_uri,$meta_uri) = ($uri,$uri);
331: if ($uri =~ /\.meta$/) {
332: $res_uri =~ s/\.meta//;
333: } else {
334: $meta_uri .= '.meta';
335: }
336:
337: my ($path) = ($res_uri =~ m|^portfolio(.*/)[^/]*$|);
338: if ($as_links) {
339: $res_uri = &portfolio_linked_path($res_uri,$group,$port_path);
340: $meta_uri = &portfolio_linked_path($meta_uri,$group,$port_path);
341: }
342: return ($res_uri,$meta_uri,$path);
343: }
344:
345: sub pre_select_course {
346: my ($r,$uri) = @_;
347: my $output;
348: my $fn=&Apache::lonnet::filelocation('',$uri);
349: my ($res_uri,$meta_uri,$path) = &portfolio_display_uri($uri);
350: %Apache::lonpublisher::metadatafields=();
351: %Apache::lonpublisher::metadatakeys=();
352: my $result=&Apache::lonnet::getfile($fn);
353: if ($result == -1){
354: $r->print(&mt('Creating new file [_1]'),$meta_uri);
355: } else {
356: &Apache::lonpublisher::metaeval($result);
357: }
358: $r->print('<hr /><form method="post" action="" >');
359: $r->print('<p>'.&mt('If you would like to associate this resource ([_1]) with a current or previous course, please select one from the list below, otherwise select, \'None\'','<tt>'.$res_uri.'</tt>').'</p>');
360: $output = &select_course();
361: $r->print($output.'<br /><input type="submit" name="store" value="'.
362: &mt('Associate Resource With Selected Course').'" />');
363: $r->print('<input type="hidden" name="currentpath" value="'.$env{'form.currentpath'}.'" />');
364: $r->print('<input type="hidden" name="associate" value="true" />');
365: $r->print('</form>');
366:
367: my ($port_path,$group) = &get_port_path_and_group($uri);
368: my $group_input;
369: if ($group) {
370: $group_input = '<input type="hidden" name="group" value="'.$group.'" />';
371: }
372: $r->print('<br /><br /><form method="post" action="'.$port_path.'">'.
373: '<input type="hidden" name="currentpath" value="'.$path.'" />'.
374: $group_input.
375: '<input type="submit" name="cancel" value="'.&mt('Cancel').'" />'.
376: '</form>');
377:
378: return;
379: }
380: sub select_course {
381: my $output=$/;
382: my $current_restriction=
383: $Apache::lonpublisher::metadatafields{'courserestricted'};
384: my $selected = ($current_restriction eq 'none' ? 'selected="selected"'
385: : '');
386: if ($current_restriction =~ /^course\.($match_domain\_$match_courseid)$/) {
387: my $assoc_crs = $1;
388: my $added_metadata_fields = &Apache::lonparmset::get_added_meta_fieldnames($assoc_crs);
389: if (ref($added_metadata_fields) eq 'HASH') {
390: if (keys(%{$added_metadata_fields}) > 0) {
391: my $transfernotes;
392: foreach my $field_name (keys(%{$added_metadata_fields})) {
393: my $value = $Apache::lonpublisher::metadatafields{$field_name};
394: if ($value) {
395: $transfernotes .=
396: &Apache::loncommon::start_data_table_row().
397: '<td><input type="checkbox" name="transfer_'.
398: $field_name.'" value="1" /></td><td>'.
399: $field_name.'</td><td>'.$value.'</td>'.
400: &Apache::loncommon::end_data_table_row();
401: }
402: }
403: if ($transfernotes ne '') {
404: my %courseinfo = &Apache::lonnet::coursedescription($assoc_crs,{'one_time' => 1});
405: my $assoc_crs_description = $courseinfo{'description'};
406: $output .= &mt('This resource is currently associated with a course ([_1]) which includes added metadata fields specific to the course.',$assoc_crs_description).'<br />'."\n".
407: &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 />'.
408: &Apache::loncommon::start_data_table().
409: &Apache::loncommon::start_data_table_header_row().
410: '<th>Copy to notes?</th>'."\n".
411: '<th>Field name</th>'."\n".
412: '<th>Values</th>'."\n".
413: &Apache::loncommon::end_data_table_header_row().
414: $transfernotes.
415: &Apache::loncommon::end_data_table().'<br />';
416: }
417: }
418: }
419: }
420: $output .= '<select name="new_courserestricted" >';
421: $output .= '<option value="none" '.$selected.'>'.
422: &mt('None').'</option>'.$/;
423: my %courses;
424: foreach my $key (keys(%env)) {
425: if ($key !~ m/^course\.(.+)\.description$/) { next; }
426: my $cid = $1;
427: if ($env{$key} !~ /\S/) { next; }
428: $courses{$key} = $cid;
429: }
430: foreach my $key (sort { lc($env{$a}) cmp lc($env{$b}) } (keys(%courses))) {
431: my $cid = 'course.'.$courses{$key};
432: my $selected = ($current_restriction eq $cid ? 'selected="selected"'
433: : '');
434: if ($env{$key} !~ /\S/) { next; }
435: $output .= '<option value="'.$cid.'" '.$selected.'>';
436: $output .= $env{$key};
437: $output .= '</option>'.$/;
438: $selected = '';
439: }
440: $output .= '</select><br />';
441: return ($output);
442: }
443: # Pretty printing of metadata field
444:
445: sub prettyprint {
446: my ($type,$value,$target,$prefix,$form,$noformat)=@_;
447: # $target,$prefix,$form are optional and for filecrumbs only
448: if (! defined($value)) {
449: return ' ';
450: }
451: # Title
452: if ($type eq 'title') {
453: return '<font size="+1" face="arial">'.$value.'</font>';
454: }
455: # Dates
456: if (($type eq 'creationdate') ||
457: ($type eq 'lastrevisiondate')) {
458: return ($value?&Apache::lonlocal::locallocaltime(
459: &Apache::lonmysql::unsqltime($value)):
460: &mt('not available'));
461: }
462: # Language
463: if ($type eq 'language') {
464: return &Apache::loncommon::languagedescription($value);
465: }
466: # Copyright
467: if ($type eq 'copyright') {
468: return &Apache::loncommon::copyrightdescription($value);
469: }
470: # Copyright
471: if ($type eq 'sourceavail') {
472: return &Apache::loncommon::source_copyrightdescription($value);
473: }
474: # MIME
475: if ($type eq 'mime') {
476: return '<img src="'.&Apache::loncommon::icon($value).'" /> '.
477: &Apache::loncommon::filedescription($value);
478: }
479: # Person
480: if (($type eq 'author') ||
481: ($type eq 'owner') ||
482: ($type eq 'modifyinguser') ||
483: ($type eq 'authorspace')) {
484: $value=~s/($match_username)(\:|\@)($match_domain)/&authordisplay($1,$3)/gse;
485: return $value;
486: }
487: # Gradelevel
488: if (($type eq 'lowestgradelevel') ||
489: ($type eq 'highestgradelevel')) {
490: return &Apache::loncommon::gradeleveldescription($value);
491: }
492: # Only for advance users below
493: if (! $env{'user.adv'}) {
494: return '<i>- '.&mt('not displayed').' -</i>';
495: }
496: # File
497: if (($type eq 'customdistributionfile') ||
498: ($type eq 'obsoletereplacement') ||
499: ($type eq 'goto_list') ||
500: ($type eq 'comefrom_list') ||
501: ($type eq 'sequsage_list') ||
502: ($type eq 'dependencies')) {
503: return '<font size="-1"><ul>'.join("\n",map {
504: my $url = &Apache::lonnet::clutter_with_no_wrapper($_);
505: my $title = &Apache::lonnet::gettitle($url);
506: if ($title eq '') {
507: $title = 'Untitled';
508: if ($url =~ /\.sequence$/) {
509: $title .= ' Sequence';
510: } elsif ($url =~ /\.page$/) {
511: $title .= ' Page';
512: } elsif ($url =~ /\.problem$/) {
513: $title .= ' Problem';
514: } elsif ($url =~ /\.html$/) {
515: $title .= ' HTML document';
516: } elsif ($url =~ m:/syllabus$:) {
517: $title .= ' Syllabus';
518: }
519: }
520: $_ = '<li>'.$title.' '.
521: &Apache::lonhtmlcommon::crumbs($url,$target,$prefix,$form,'-1',$noformat).
522: '</li>'
523: } split(/\s*\,\s*/,$value)).'</ul></font>';
524: }
525: # Evaluations
526: if (($type eq 'clear') ||
527: ($type eq 'depth') ||
528: ($type eq 'helpful') ||
529: ($type eq 'correct') ||
530: ($type eq 'technical')) {
531: return &evalgraph($value);
532: }
533: # Difficulty
534: if ($type eq 'difficulty' || $type eq 'disc') {
535: return &diffgraph($value);
536: }
537: # List of courses
538: if ($type=~/\_list/) {
539: my @Courses = split(/\s*\,\s*/,$value);
540: my $Str='<font size="-1"><ul>';
541: my %descriptions;
542: foreach my $course (@Courses) {
543: my %courseinfo =
544: &Apache::lonnet::coursedescription($course,
545: {'one_time' => 1});
546: if (! exists($courseinfo{'num'}) || $courseinfo{'num'} eq '') {
547: next;
548: }
549: $descriptions{join('\0',@courseinfo{'domain','description'})} .=
550: '<li><a href="/public/'.$courseinfo{'domain'}.'/'.
551: $courseinfo{'num'}.'/syllabus" target="preview">'.
552: $courseinfo{'description'}.' ('.$courseinfo{'domain'}.
553: ')</a></li>';
554: }
555: foreach my $course (sort {lc($a) cmp lc($b)} (keys(%descriptions))) {
556: $Str .= $descriptions{$course};
557: }
558:
559: return $Str.'</ul></font>';
560: }
561: # No pretty print found
562: return $value;
563: }
564:
565: # Pretty input of metadata field
566: sub direct {
567: return shift;
568: }
569:
570: sub selectbox {
571: my ($name,$value,$functionref,@idlist)=@_;
572: if (! defined($functionref)) {
573: $functionref=\&direct;
574: }
575: my $selout='<select name="'.$name.'">';
576: foreach (@idlist) {
577: $selout.='<option value=\''.$_.'\'';
578: if ($_ eq $value) {
579: $selout.=' selected>'.&{$functionref}($_).'</option>';
580: }
581: else {$selout.='>'.&{$functionref}($_).'</option>';}
582: }
583: return $selout.'</select>';
584: }
585:
586: sub relatedfield {
587: my ($show,$relatedsearchflag,$relatedsep,$fieldname,$relatedvalue)=@_;
588: if (! $relatedsearchflag) {
589: return '';
590: }
591: if (! defined($relatedsep)) {
592: $relatedsep=' ';
593: }
594: if (! $show) {
595: return $relatedsep.' ';
596: }
597: return $relatedsep.'<input type="checkbox" name="'.$fieldname.'_related"'.
598: ($relatedvalue?' checked="1"':'').' />';
599: }
600:
601: sub prettyinput {
602: my ($type,$value,$fieldname,$formname,
603: $relatedsearchflag,$relatedsep,$relatedvalue,$size,$course_key)=@_;
604: if (! defined($size)) {
605: $size = 80;
606: }
607: my $output;
608: if (defined($course_key)
609: && exists($env{$course_key.'.metadata.'.$type.'.options'})) {
610: my $stu_add;
611: my $only_one;
612: my %meta_options;
613: my @cur_values_inst;
614: my $cur_values_stu;
615: my $values = $env{$course_key.'.metadata.'.$type.'.values'};
616: if ($env{$course_key.'.metadata.'.$type.'.options'} =~ m/stuadd/) {
617: $stu_add = 'true';
618: }
619: if ($env{$course_key.'.metadata.'.$type.'.options'} =~ m/onlyone/) {
620: $only_one = 'true';
621: }
622: # need to take instructor values out of list where instructor and student
623: # values may be mixed.
624: if ($values) {
625: foreach my $item (split(/,/,$values)) {
626: $item =~ s/^\s+//;
627: $meta_options{$item} = $item;
628: }
629: foreach my $item (split(/,/,$value)) {
630: $item =~ s/^\s+//;
631: if ($meta_options{$item}) {
632: push(@cur_values_inst,$item);
633: } else {
634: if ($item ne '') {
635: $cur_values_stu .= $item.',';
636: }
637: }
638: }
639: $cur_values_stu =~ s/,$//;
640: my @key_order = sort(keys(%meta_options));
641: unshift(@key_order,'');
642: $meta_options{''} = 'Not specified';
643: $meta_options{'select_form_order'} = \@key_order;
644: } else {
645: $cur_values_stu = $value;
646: }
647: if ($type eq 'courserestricted') {
648: return (&select_course());
649: # return ('<input type="hidden" name="new_courserestricted" value="'.$course_key.'" />');
650: }
651: if (($type eq 'keywords') || ($type eq 'subject')
652: || ($type eq 'author')||($type eq 'notes')
653: || ($type eq 'abstract')|| ($type eq 'title')|| ($type eq 'standards')
654: || (exists($env{$course_key.'.metadata.'.$type.'.added'}))) {
655:
656: if ($values) {
657: if ($only_one) {
658: $output .= (&Apache::loncommon::select_form($cur_values_inst[0],'new_'.$type,%meta_options));
659: } else {
660: $output .= (&Apache::loncommon::multiple_select_form('new_'.$type,\@cur_values_inst,undef,\%meta_options));
661: }
662: }
663: if ($stu_add) {
664: $output .= '<input type="text" name="'.$fieldname.'" size="'.$size.'" '.
665: 'value="'.$cur_values_stu.'" />'.
666: &relatedfield(1,$relatedsearchflag,$relatedsep,$fieldname,
667: $relatedvalue);
668: }
669: return ($output);
670: }
671: if (($type eq 'lowestgradelevel') ||
672: ($type eq 'highestgradelevel')) {
673: return &Apache::loncommon::select_level_form($value,$fieldname).
674: &relatedfield(0,$relatedsearchflag,$relatedsep);
675: }
676: return();
677: }
678: # Language
679: if ($type eq 'language') {
680: return &selectbox($fieldname,
681: $value,
682: \&Apache::loncommon::languagedescription,
683: (&Apache::loncommon::languageids)).
684: &relatedfield(0,$relatedsearchflag,$relatedsep);
685: }
686: # Copyright
687: if ($type eq 'copyright') {
688: return &selectbox($fieldname,
689: $value,
690: \&Apache::loncommon::copyrightdescription,
691: (&Apache::loncommon::copyrightids)).
692: &relatedfield(0,$relatedsearchflag,$relatedsep);
693: }
694: # Source Copyright
695: if ($type eq 'sourceavail') {
696: return &selectbox($fieldname,
697: $value,
698: \&Apache::loncommon::source_copyrightdescription,
699: (&Apache::loncommon::source_copyrightids)).
700: &relatedfield(0,$relatedsearchflag,$relatedsep);
701: }
702: # Gradelevels
703: if (($type eq 'lowestgradelevel') ||
704: ($type eq 'highestgradelevel')) {
705: return &Apache::loncommon::select_level_form($value,$fieldname).
706: &relatedfield(0,$relatedsearchflag,$relatedsep);
707: }
708: # Obsolete
709: if ($type eq 'obsolete') {
710: return '<input type="checkbox" name="'.$fieldname.'"'.
711: ($value?' checked="1"':'').' />'.
712: &relatedfield(0,$relatedsearchflag,$relatedsep);
713: }
714: # Obsolete replacement file
715: if ($type eq 'obsoletereplacement') {
716: return '<input type="text" name="'.$fieldname.
717: '" size="60" value="'.$value.'" /><a href="javascript:openbrowser'.
718: "('".$formname."','".$fieldname."'".
719: ",'')\">".&mt('Select').'</a>'.
720: &relatedfield(0,$relatedsearchflag,$relatedsep);
721: }
722: # Customdistribution file
723: if ($type eq 'customdistributionfile') {
724: return '<input type="text" name="'.$fieldname.
725: '" size="60" value="'.$value.'" /><a href="javascript:openbrowser'.
726: "('".$formname."','".$fieldname."'".
727: ",'rights')\">".&mt('Select').'</a>'.
728: &relatedfield(0,$relatedsearchflag,$relatedsep);
729: }
730: # Source Customdistribution file
731: if ($type eq 'sourcerights') {
732: return '<input type="text" name="'.$fieldname.
733: '" size="60" value="'.$value.'" /><a href="javascript:openbrowser'.
734: "('".$formname."','".$fieldname."'".
735: ",'rights')\">".&mt('Select').'</a>'.
736: &relatedfield(0,$relatedsearchflag,$relatedsep);
737: }
738: if ($type eq 'courserestricted') {
739: return (&select_course());
740: #return ('<input type="hidden" name="new_courserestricted" value="'.$course_key.'" />');
741: }
742:
743: # Dates
744: if (($type eq 'creationdate') ||
745: ($type eq 'lastrevisiondate')) {
746: return
747: &Apache::lonhtmlcommon::date_setter($formname,$fieldname,$value).
748: &relatedfield(0,$relatedsearchflag,$relatedsep);
749: }
750: # No pretty input found
751: $value=~s/^\s+//gs;
752: $value=~s/\s+$//gs;
753: $value=~s/\s+/ /gs;
754: $value=~s/\"/\"\;/gs;
755: return
756: '<input type="text" name="'.$fieldname.'" size="'.$size.'" '.
757: 'value="'.$value.'" />'.
758: &relatedfield(1,$relatedsearchflag,$relatedsep,$fieldname,
759: $relatedvalue);
760: }
761:
762: # Main Handler
763: sub handler {
764: my $r=shift;
765: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
766: ['currentpath','changecourse']);
767: my $uri=$r->uri;
768: #
769: # Set document type
770: &Apache::loncommon::content_type($r,'text/html');
771: $r->send_http_header;
772: return OK if $r->header_only;
773: my ($resdomain,$resuser)=
774: (&Apache::lonnet::declutter($uri)=~/^($match_domain)\/($match_username)\//);
775: if ($uri=~m:/adm/bombs/(.*)$:) {
776: $r->print(&Apache::loncommon::start_page('Error Messages'));
777: # Looking for all bombs?
778: &report_bombs($r,$uri);
779: } elsif ($uri=~m|^/editupload/[^/]+/[^/]+/portfolio/|) {
780: ($resdomain,$resuser)=
781: (&Apache::lonnet::declutter($uri)=~m|^($match_domain)/($match_name)/portfolio|);
782: $r->print(&Apache::loncommon::start_page('Edit Portfolio File Catalog Information',
783: undef,
784: {'domain' => $resdomain,}));
785: if ($env{'form.store'}) {
786: &present_editable_metadata($r,$uri,'portfolio');
787: } else {
788: my $fn=&Apache::lonnet::filelocation('',$uri);
789: %Apache::lonpublisher::metadatafields=();
790: %Apache::lonpublisher::metadatakeys=();
791: my $result=&Apache::lonnet::getfile($fn);
792: &Apache::lonpublisher::metaeval($result);
793: if ((!$Apache::lonpublisher::metadatafields{'courserestricted'}) ||
794: ($env{'form.changecourse'} eq 'true')) {
795: &pre_select_course($r,$uri);
796: } else {
797: &present_editable_metadata($r,$uri,'portfolio');
798: }
799: }
800: } elsif ($uri=~m|^/editupload/[^/]+/[^/]+/groups/|) {
801: $r->print(&Apache::loncommon::start_page('Edit Group Portfolio File Catalog Information',
802: undef,
803: {'domain' => $resdomain,}));
804: &present_editable_metadata($r,$uri,'groups');
805: } elsif ($uri=~m|^/~|) {
806: # Construction space
807: $r->print(&Apache::loncommon::start_page('Edit Catalog Information',
808: "\n".'<script type="text/javascript">'."\n".
809: &Apache::loncommon::browser_and_searcher_javascript().
810: "\n".'</script>',
811: {'domain' => $resdomain,}));
812: &present_editable_metadata($r,$uri);
813: } else {
814: $r->print(&Apache::loncommon::start_page('Catalog Information',
815: undef,
816: {'domain' => $resdomain,}));
817: &present_uneditable_metadata($r,$uri);
818: }
819: $r->print(&Apache::loncommon::end_page());
820: return OK;
821: }
822:
823: #####################################################
824: #####################################################
825: ### ###
826: ### Report Bombs ###
827: ### ###
828: #####################################################
829: #####################################################
830: sub report_bombs {
831: my ($r,$uri) = @_;
832: # Set document type
833: $uri =~ s:/adm/bombs/::;
834: $uri = &Apache::lonnet::declutter($uri);
835: $r->print('<h1>'.&Apache::lonnet::clutter($uri).'</h1>');
836: my ($domain,$author)=($uri=~/^($match_domain)\/($match_username)\//);
837: if (&Apache::loncacc::constructaccess('/~'.$author.'/',$domain)) {
838: if ($env{'form.clearbombs'}) {
839: &Apache::lonmsg::clear_author_res_msg($uri);
840: }
841: my $clear=&mt('Clear all Messages in Subdirectory');
842: my $cancel=&mt('Back to Directory');
843: my $cancelurl=$uri;
844: $cancelurl=~s/^\Q$domain\E/\/priv/;
845: $r->print(<<ENDCLEAR);
846: <form method="post">
847: <input type="submit" name="clearbombs" value="$clear" />
848: <a href="$cancelurl">$cancel</a>
849: </form><hr />
850: ENDCLEAR
851: my %brokenurls =
852: &Apache::lonmsg::all_url_author_res_msg($author,$domain);
853: foreach (sort(keys(%brokenurls))) {
854: if ($_=~/^\Q$uri\E/) {
855: $r->print
856: ('<a href="'.&Apache::lonnet::clutter($_).'">'.$_.'</a>'.
857: &Apache::lonmsg::retrieve_author_res_msg($_).
858: '<hr />');
859: }
860: }
861: } else {
862: $r->print(&mt('Not authorized'));
863: }
864: return;
865: }
866:
867: #####################################################
868: #####################################################
869: ### ###
870: ### Uneditable Metadata Display ###
871: ### ###
872: #####################################################
873: #####################################################
874: sub present_uneditable_metadata {
875: my ($r,$uri) = @_;
876: #
877: my $uploaded = ($uri =~ m|/uploaded/|);
878: my %content=();
879: # Read file
880: foreach (split(/\,/,&Apache::lonnet::metadata($uri,'keys'))) {
881: $content{$_}=&Apache::lonnet::metadata($uri,$_);
882: }
883: # Render Output
884: # displayed url
885: my ($thisversion)=($uri=~/\.(\d+)\.(\w+)\.meta$/);
886: $uri=~s/\.meta$//;
887: my $disuri=&Apache::lonnet::clutter_with_no_wrapper($uri);
888: # version
889: my $versiondisplay='';
890: if (!$uploaded) {
891: my $currentversion=&Apache::lonnet::getversion($disuri);
892: if ($thisversion) {
893: $versiondisplay=&mt('Version').': '.$thisversion.
894: ' ('.&mt('most recent version').': '.
895: ($currentversion>0 ?
896: $currentversion :
897: &mt('information not available')).')';
898: } else {
899: $versiondisplay='Version: '.$currentversion;
900: }
901: }
902: # crumbify displayed URL uri target prefix form size
903: $disuri=&Apache::lonhtmlcommon::crumbs($disuri,undef, undef, undef,'+1');
904: $disuri =~ s:<br />::g;
905: # obsolete
906: my $obsolete=$content{'obsolete'};
907: my $obsoletewarning='';
908: if (($obsolete) && ($env{'user.adv'})) {
909: $obsoletewarning='<p><font color="red">'.
910: &mt('This resource has been marked obsolete by the author(s)').
911: '</font></p>';
912: }
913: #
914: my %lt=&fieldnames();
915: my $table='';
916: my $title = $content{'title'};
917: if (! defined($title)) {
918: $title = 'Untitled Resource';
919: }
920: my @fields;
921: if ($uploaded) {
922: @fields = ('title','author','subject','keywords','notes','abstract',
923: 'lowestgradelevel','highestgradelevel','standards','mime',
924: 'owner');
925: } else {
926: @fields = ('title',
927: 'author',
928: 'subject',
929: 'keywords',
930: 'notes',
931: 'abstract',
932: 'lowestgradelevel',
933: 'highestgradelevel',
934: 'standards',
935: 'mime',
936: 'language',
937: 'creationdate',
938: 'lastrevisiondate',
939: 'owner',
940: 'copyright',
941: 'customdistributionfile',
942: 'sourceavail',
943: 'sourcerights',
944: 'obsolete',
945: 'obsoletereplacement');
946: }
947: foreach my $field (@fields) {
948: $table.='<tr><td bgcolor="#AAAAAA">'.$lt{$field}.
949: '</td><td bgcolor="#CCCCCC">'.
950: &prettyprint($field,$content{$field}).'</td></tr>';
951: delete($content{$field});
952: }
953: #
954: $r->print(<<ENDHEAD);
955: <h2>$title</h2>
956: <p>
957: $disuri<br />
958: $obsoletewarning
959: $versiondisplay
960: </p>
961: <table cellspacing="2" border="0">
962: $table
963: </table>
964: ENDHEAD
965: if (!$uploaded && $env{'user.adv'}) {
966: &print_dynamic_metadata($r,$uri,\%content);
967: }
968: return;
969: }
970:
971: sub print_dynamic_metadata {
972: my ($r,$uri,$content) = @_;
973: #
974: my %content = %$content;
975: my %lt=&fieldnames();
976: #
977: my $description = 'Dynamic Metadata (updated periodically)';
978: $r->print('<h3>'.&mt($description).'</h3>'.
979: &mt('Processing'));
980: $r->rflush();
981: my %items=&fieldnames();
982: my %dynmeta=&dynamicmeta($uri);
983: #
984: # General Access and Usage Statistics
985: if (exists($dynmeta{'count'}) ||
986: exists($dynmeta{'sequsage'}) ||
987: exists($dynmeta{'comefrom'}) ||
988: exists($dynmeta{'goto'}) ||
989: exists($dynmeta{'course'})) {
990: $r->print('<h4>'.&mt('Access and Usage Statistics').'</h4>'.
991: '<table cellspacing="2" border="0">');
992: foreach ('count',
993: 'sequsage','sequsage_list',
994: 'comefrom','comefrom_list',
995: 'goto','goto_list',
996: 'course','course_list') {
997: $r->print('<tr><td bgcolor="#AAAAAA">'.$lt{$_}.'</td>'.
998: '<td bgcolor="#CCCCCC">'.
999: &prettyprint($_,$dynmeta{$_})."</td></tr>\n");
1000: }
1001: $r->print('</table>');
1002: } else {
1003: $r->print('<h4>'.&mt('No Access or Usages Statistics are available for this resource.').'</h4>');
1004: }
1005: #
1006: # Assessment statistics
1007: if ($uri=~/\.(problem|exam|quiz|assess|survey|form)$/) {
1008: if (exists($dynmeta{'stdno'}) ||
1009: exists($dynmeta{'avetries'}) ||
1010: exists($dynmeta{'difficulty'}) ||
1011: exists($dynmeta{'disc'})) {
1012: # This is an assessment, print assessment data
1013: $r->print('<h4>'.
1014: &mt('Overall Assessment Statistical Data').
1015: '</h4>'.
1016: '<table cellspacing="2" border="0">');
1017: $r->print('<tr><td bgcolor="#AAAAAA">'.$lt{'stdno'}.'</td>'.
1018: '<td bgcolor="#CCCCCC">'.
1019: &prettyprint('stdno',$dynmeta{'stdno'}).
1020: '</td>'."</tr>\n");
1021: foreach ('avetries','difficulty','disc') {
1022: $r->print('<tr><td bgcolor="#AAAAAA">'.$lt{$_}.'</td>'.
1023: '<td bgcolor="#CCCCCC">'.
1024: &prettyprint($_,sprintf('%5.2f',$dynmeta{$_})).
1025: '</td>'."</tr>\n");
1026: }
1027: $r->print('</table>');
1028: }
1029: if (exists($dynmeta{'stats'})) {
1030: #
1031: # New assessment statistics
1032: $r->print('<h4>'.
1033: &mt('Recent Detailed Assessment Statistical Data').
1034: '</h4>');
1035: my $table = '<table cellspacing="2" border="0">'.
1036: '<tr>'.
1037: '<th>'.&mt('Course').'</th>'.
1038: '<th>'.&mt('Section(s)').'</th>'.
1039: '<th>'.&mt('Num Student').'s</th>'.
1040: '<th>'.&mt('Mean Tries').'</th>'.
1041: '<th>'.&mt('Degree of Difficulty').'</th>'.
1042: '<th>'.&mt('Degree of Discrimination').'</th>'.
1043: '<th>'.&mt('Time of computation').'</th>'.
1044: '</tr>'.$/;
1045: foreach my $identifier (sort(keys(%{$dynmeta{'stats'}}))) {
1046: my $data = $dynmeta{'stats'}->{$identifier};
1047: my $course = $data->{'course'};
1048: my %courseinfo =
1049: &Apache::lonnet::coursedescription($course,
1050: {'one_time' => 1});
1051: if (! exists($courseinfo{'num'}) || $courseinfo{'num'} eq '') {
1052: &Apache::lonnet::logthis('lookup for '.$course.' failed');
1053: next;
1054: }
1055: $table .= '<tr>';
1056: $table .=
1057: '<td><nobr>'.$courseinfo{'description'}.'</nobr></td>';
1058: $table .=
1059: '<td align="right">'.$data->{'sections'}.'</td>';
1060: $table .=
1061: '<td align="right">'.$data->{'stdno'}.'</td>';
1062: foreach ('avetries','difficulty','disc') {
1063: $table .= '<td align="right">';
1064: if (exists($data->{$_})) {
1065: $table .= sprintf('%.2f',$data->{$_}).' ';
1066: } else {
1067: $table .= '';
1068: }
1069: $table .= '</td>';
1070: }
1071: $table .=
1072: '<td><nobr>'.
1073: &Apache::lonlocal::locallocaltime($data->{'timestamp'}).
1074: '</nobr></td>';
1075: $table .=
1076: '</tr>'.$/;
1077: }
1078: $table .= '</table>'.$/;
1079: $r->print($table);
1080: } else {
1081: $r->print(&mt('No new dynamic data found.'));
1082: }
1083: } else {
1084: $r->print('<h4>'.
1085: &mt('No Assessment Statistical Data is available for this resource').
1086: '</h4>');
1087: }
1088:
1089: #
1090: #
1091: if (exists($dynmeta{'clear'}) ||
1092: exists($dynmeta{'depth'}) ||
1093: exists($dynmeta{'helpful'}) ||
1094: exists($dynmeta{'correct'}) ||
1095: exists($dynmeta{'technical'})){
1096: $r->print('<h4>'.&mt('Evaluation Data').'</h4>'.
1097: '<table cellspacing="2" border="0">');
1098: foreach ('clear','depth','helpful','correct','technical') {
1099: $r->print('<tr><td bgcolor="#AAAAAA">'.$lt{$_}.'</td>'.
1100: '<td bgcolor="#CCCCCC">'.
1101: &prettyprint($_,$dynmeta{$_})."</td></tr>\n");
1102: }
1103: $r->print('</table>');
1104: } else {
1105: $r->print('<h4>'.&mt('No Evaluation Data is available for this resource.').'</h4>');
1106: }
1107: $uri=~/^\/res\/($match_domain)\/($match_username)\//;
1108: if ((($env{'user.domain'} eq $1) && ($env{'user.name'} eq $2))
1109: || ($env{'user.role.ca./'.$1.'/'.$2})) {
1110: if (exists($dynmeta{'comments'})) {
1111: $r->print('<h4>'.&mt('Evaluation Comments').' ('.
1112: &mt('visible to author and co-authors only').
1113: ')</h4>'.
1114: '<blockquote>'.$dynmeta{'comments'}.'</blockquote>');
1115: } else {
1116: $r->print('<h4>'.&mt('There are no Evaluation Comments on this resource.').'</h4>');
1117: }
1118: my $bombs = &Apache::lonmsg::retrieve_author_res_msg($uri);
1119: if (defined($bombs) && $bombs ne '') {
1120: $r->print('<a name="bombs" /><h4>'.&mt('Error Messages').' ('.
1121: &mt('visible to author and co-authors only').')'.
1122: '</h4>'.$bombs);
1123: } else {
1124: $r->print('<h4>'.&mt('There are currently no Error Messages for this resource.').'</h4>');
1125: }
1126: }
1127: #
1128: # All other stuff
1129: $r->print('<h3>'.
1130: &mt('Additional Metadata (non-standard, parameters, exports)').
1131: '</h3><table border="0" cellspacing="1">');
1132: foreach (sort(keys(%content))) {
1133: my $name=$_;
1134: if ($name!~/\.display$/) {
1135: my $display=&Apache::lonnet::metadata($uri,
1136: $name.'.display');
1137: if (! $display) {
1138: $display=$name;
1139: };
1140: my $otherinfo='';
1141: foreach ('name','part','type','default') {
1142: if (defined(&Apache::lonnet::metadata($uri,
1143: $name.'.'.$_))) {
1144: $otherinfo.=' '.$_.'='.
1145: &Apache::lonnet::metadata($uri,
1146: $name.'.'.$_).'; ';
1147: }
1148: }
1149: $r->print('<tr><td bgcolor="#bbccbb"><font size="-1" color="#556655">'.$display.'</font></td><td bgcolor="#ccddcc"><font size="-1" color="#556655">'.$content{$name});
1150: if ($otherinfo) {
1151: $r->print(' ('.$otherinfo.')');
1152: }
1153: $r->print("</font></td></tr>\n");
1154: }
1155: }
1156: $r->print("</table>");
1157: return;
1158: }
1159:
1160:
1161:
1162: #####################################################
1163: #####################################################
1164: ### ###
1165: ### Editable metadata display ###
1166: ### ###
1167: #####################################################
1168: #####################################################
1169: sub present_editable_metadata {
1170: my ($r,$uri,$file_type) = @_;
1171: # Construction Space Call
1172: # Header
1173: my $disuri=$uri;
1174: my $fn=&Apache::lonnet::filelocation('',$uri);
1175: $disuri=~s{^/\~}{/priv/};
1176: $disuri=~s/\.meta$//;
1177: my $meta_uri = $disuri;
1178: my $path;
1179: if ($disuri =~ m|/portfolio/|) {
1180: ($disuri, $meta_uri, $path) = &portfolio_display_uri($disuri,1);
1181: }
1182: my $target=$uri;
1183: $target=~s{^/\~}{/res/$env{'request.role.domain'}/};
1184: $target=~s/\.meta$//;
1185: my $bombs=&Apache::lonmsg::retrieve_author_res_msg($target);
1186: if ($bombs) {
1187: my $showdel=1;
1188: if ($env{'form.delmsg'}) {
1189: if (&Apache::lonmsg::del_url_author_res_msg($target) eq 'ok') {
1190: $bombs=&mt('Messages deleted.');
1191: $showdel=0;
1192: } else {
1193: $bombs=&mt('Error deleting messages');
1194: }
1195: }
1196: if ($env{'form.clearmsg'}) {
1197: my $cleardir=$target;
1198: $cleardir=~s/\/[^\/]+$/\//;
1199: if (&Apache::lonmsg::clear_author_res_msg($cleardir) eq 'ok') {
1200: $bombs=&mt('Messages cleared.');
1201: $showdel=0;
1202: } else {
1203: $bombs=&mt('Error clearing messages');
1204: }
1205: }
1206: my $del=&mt('Delete Messages for this Resource');
1207: my $clear=&mt('Clear all Messages in Subdirectory');
1208: my $goback=&mt('Back to Source File');
1209: $r->print(<<ENDBOMBS);
1210: <h1>$disuri</h1>
1211: <form method="post" action="" name="defaultmeta">
1212: ENDBOMBS
1213: if ($showdel) {
1214: $r->print(<<ENDDEL);
1215: <input type="submit" name="delmsg" value="$del" />
1216: <input type="submit" name="clearmsg" value="$clear" />
1217: ENDDEL
1218: } else {
1219: $r->print('<p><a href="'.$disuri.'">'.$goback.'</a></p>');
1220: if ($env{'form.clearmsg'}) {
1221: my ($diruri) = ($disuri =~ m{(.*/)[^/]*});
1222: $r->print('<p><a href="'.$diruri.'">'.
1223: &mt('Back To Directory').'</a></p>');
1224: }
1225: }
1226: $r->print('<br />'.$bombs);
1227: } else {
1228: my $displayfile=&mt('Catalog Information for [_1]',$disuri);
1229: if ($disuri=~/\/default$/) {
1230: my $dir=$disuri;
1231: $dir=~s/default$//;
1232: $displayfile=&mt('Default Cataloging Information for Directory [_1]',$dir);
1233: }
1234: %Apache::lonpublisher::metadatafields=();
1235: %Apache::lonpublisher::metadatakeys=();
1236: my $result=&Apache::lonnet::getfile($fn);
1237: if ($result == -1){
1238: $r->print(&mt('Creating new file [_1]'),$meta_uri);
1239: } else {
1240: &Apache::lonpublisher::metaeval($result);
1241: }
1242: if ($env{'form.new_courserestricted'}) {
1243: my $new_assoc_course = $env{'form.new_courserestricted'};
1244: my $prev_courserestricted = $Apache::lonpublisher::metadatafields{'courserestricted'};
1245: if (($prev_courserestricted) &&
1246: ($prev_courserestricted ne $new_assoc_course)) {
1247: my $transfers = [];
1248: foreach my $key (keys(%env)) {
1249: if ($key =~ /^form\.transfer_(.+)$/) {
1250: push(@{$transfers},$1);
1251: }
1252: }
1253: if (@{$transfers} > 0) {
1254: &store_transferred_addedfields($fn,$uri,$transfers);
1255: }
1256: }
1257: }
1258: $r->print(<<ENDEDIT);
1259: <h1>$displayfile</h1>
1260: <form method="post" action="" name="defaultmeta">
1261: ENDEDIT
1262: my %lt=&fieldnames($file_type);
1263: my $output;
1264: my @fields;
1265: my $added_metadata_fields;
1266: my @added_order;
1267: if ($file_type eq 'groups') {
1268: $Apache::lonpublisher::metadatafields{'courserestricted'}=
1269: 'course.'.$env{'request.course.id'};
1270: }
1271: if ((! $Apache::lonpublisher::metadatafields{'courserestricted'}) &&
1272: (! $env{'form.new_courserestricted'}) && (! $file_type eq 'groups')) {
1273: $Apache::lonpublisher::metadatafields{'courserestricted'}=
1274: 'none';
1275: } elsif ($env{'form.new_courserestricted'}) {
1276: $Apache::lonpublisher::metadatafields{'courserestricted'}=
1277: $env{'form.new_courserestricted'};
1278: }
1279: if ($file_type eq 'portfolio' || $file_type eq 'groups') {
1280: if(exists ($env{$Apache::lonpublisher::metadatafields{'courserestricted'}.'.metadata.fieldlist'})) {
1281: # retrieve fieldnames (in order) from the course restricted list
1282: @fields = (split(/,/,$env{$Apache::lonpublisher::metadatafields{'courserestricted'}.'.metadata.fieldlist'}));
1283: } else {
1284: # no saved field list, use default list
1285: @fields = ('author','title','subject','keywords','abstract',
1286: 'notes','lowestgradelevel',
1287: 'highestgradelevel','standards');
1288: if ($Apache::lonpublisher::metadatafields{'courserestricted'} =~ /^course\.($match_domain\_$match_courseid)$/) {
1289: my $assoc_crs = $1;
1290: $added_metadata_fields = &Apache::lonparmset::get_added_meta_fieldnames($assoc_crs);
1291: if ($env{'course.'.$assoc_crs.'.metadata.addedorder'}) {
1292: @added_order = split(/,/,$env{'course.'.$assoc_crs.'.metadata.addedorder'});
1293: }
1294: $env{$Apache::lonpublisher::metadatafields{'courserestricted'}.'.metadata.fieldlist'} = join(",",@fields);
1295: }
1296: }
1297: } else {
1298: @fields = ('author','title','subject','keywords','abstract','notes',
1299: 'copyright','customdistributionfile','language',
1300: 'standards',
1301: 'lowestgradelevel','highestgradelevel','sourceavail','sourcerights',
1302: 'obsolete','obsoletereplacement');
1303: }
1304: if (! $Apache::lonpublisher::metadatafields{'copyright'}) {
1305: $Apache::lonpublisher::metadatafields{'copyright'}=
1306: 'default';
1307: }
1308: if (($file_type eq 'portfolio') || ($file_type eq 'groups')) {
1309: if (! $Apache::lonpublisher::metadatafields{'mime'}) {
1310: ($Apache::lonpublisher::metadatafields{'mime'}) =
1311: ( $target=~/\.(\w+)$/ );
1312: }
1313: if (! $Apache::lonpublisher::metadatafields{'owner'}) {
1314: $Apache::lonpublisher::metadatafields{'owner'} =
1315: $env{'user.name'}.':'.$env{'user.domain'};
1316: }
1317: if (! $Apache::lonpublisher::metadatafields{'author'}) {
1318: $Apache::lonpublisher::metadatafields{'author'} =
1319: &Apache::loncommon::plainname($env{'user.name'},
1320: $env{'user.domain'});
1321: }
1322: if ($Apache::lonpublisher::metadatafields{'courserestricted'} ne 'none') {
1323:
1324: if ($file_type eq 'portfolio') {
1325: $r->print(&mt('Associated with course [_1]',
1326: '<strong><a href="'.$uri.'?changecourse=true">'.
1327: $env{$Apache::lonpublisher::metadatafields{'courserestricted'}.
1328: ".description"}.
1329: '</a></strong>').'<br />');
1330: } else {
1331: $r->print(&mt('Associated with course [_1]',
1332: '<strong>'.
1333: $env{$Apache::lonpublisher::metadatafields{'courserestricted'}.
1334: ".description"}.'</strong>').'<br />');
1335: }
1336: } else {
1337: $r->print('<a href="'.$uri.'?changecourse=true">'.&mt('This resource is not associated with a course.').'</a><br />');
1338: }
1339: }
1340: if (@added_order) {
1341: foreach my $field_name (@added_order) {
1342: push(@fields,$field_name);
1343: $lt{$field_name} = $$added_metadata_fields{$field_name};
1344: }
1345: } else {
1346: foreach my $field_name (keys(%$added_metadata_fields)) {
1347: push(@fields,$field_name);
1348: $lt{$field_name} = $$added_metadata_fields{$field_name};
1349: }
1350: }
1351: $output .= &Apache::loncommon::start_data_table();
1352: my $row_alt = 1;
1353: foreach my $field_name (@fields) {
1354: if (defined($env{'form.new_'.$field_name})) {
1355: my @values = &Apache::loncommon::get_env_multiple('form.new_'.$field_name);
1356: my $newvalue = '';
1357: foreach my $item (@values) {
1358: if ($item ne '') {
1359: $newvalue .= $item.',';
1360: }
1361: }
1362: $newvalue =~ s/,$//;
1363: $Apache::lonpublisher::metadatafields{$field_name}=$newvalue;
1364: }
1365: if ($Apache::lonpublisher::metadatafields{'courserestricted'} ne 'none'
1366: && exists($env{$Apache::lonpublisher::metadatafields{'courserestricted'}.'.metadata.'.$field_name.'.options'})) {
1367: # handle restrictions here
1368: if ((($env{$Apache::lonpublisher::metadatafields{'courserestricted'}.'.metadata.'.$field_name.'.options'} =~ m/active/) ||
1369: ($field_name eq 'courserestricted'))&&
1370: (!($env{$Apache::lonpublisher::metadatafields{'courserestricted'}.'.metadata.'.$field_name.'.options'} =~ m/deleted/))){
1371:
1372: $output .= "\n".&Apache::loncommon::start_data_table_row();
1373: $output .= ('<td><span class="LC_metadata">'.$lt{$field_name}.':</span></td><td> '.
1374: &prettyinput($field_name,
1375: $Apache::lonpublisher::metadatafields{$field_name},
1376: 'new_'.$field_name,'defaultmeta',
1377: undef,undef,undef,undef,
1378: $Apache::lonpublisher::metadatafields{'courserestricted'}).'</td>');
1379: $output .= &Apache::loncommon::end_data_table_row();
1380: }
1381: } else {
1382:
1383: $output.=(&Apache::loncommon::start_data_table_row().'<td><span class="LC_metadata">'.$lt{$field_name}.':</span></td><td> '.
1384: &prettyinput($field_name,
1385: $Apache::lonpublisher::metadatafields{$field_name},
1386: 'new_'.$field_name,'defaultmeta').'</td>'.&Apache::loncommon::end_data_table_row());
1387:
1388: }
1389: }
1390: $output .= &Apache::loncommon::end_data_table();
1391: if ($env{'form.store'}) {
1392: my ($outcome,$result) = &store_metadata($fn,$uri,'store');
1393: $r->print($result);
1394: }
1395: $r->print($output.'<br /><input type="submit" name="store" value="'.
1396: &mt('Save Catalog Information').'" />');
1397:
1398: if ($file_type eq 'portfolio' || $file_type eq 'groups') {
1399: my ($port_path,$group) = &get_port_path_and_group($uri);
1400: if ($group ne '') {
1401: $r->print('<input type="hidden" name="group" value="'.$group.'" />');
1402: }
1403: $r->print('<input type="hidden" name="currentpath" value="'.$env{'form.currentpath'}.'" />');
1404: $r->print('</form><br /><br /><form method="post" action="'.$port_path.'">');
1405: if ($group ne '') {
1406: $r->print('<input type="hidden" name="group" value="'.$group.'" />');
1407: }
1408: $r->print('<input type="hidden" name="currentpath" value="'.$path.'" />'.
1409: '<input type="submit" name="cancel" value="'.&mt('Discard Edits and Return to Portfolio').'" />');
1410: }
1411: }
1412:
1413: $r->print('</form>');
1414:
1415: return;
1416: }
1417:
1418: sub store_metadata {
1419: my ($fn,$uri,$caller) = @_;
1420: my $mfh;
1421: my $formname='store';
1422: my ($file_content,$output,$outcome);
1423: if (&Apache::loncommon::get_env_multiple('form.new_keywords')) {
1424: $Apache::lonpublisher::metadatafields{'keywords'} =
1425: join (',', &Apache::loncommon::get_env_multiple('form.new_keywords'));
1426: }
1427: foreach my $field (sort(keys(%Apache::lonpublisher::metadatafields))) {
1428: next if ($field =~ /\./);
1429: my $unikey=$field;
1430: $unikey=~/^([A-Za-z_]+)/;
1431: my $tag=$1;
1432: $tag=~tr/A-Z/a-z/;
1433: $file_content.= "\n\<$tag";
1434: foreach my $key (split(/\,/,$Apache::lonpublisher::metadatakeys{$unikey})) {
1435: my $value = $Apache::lonpublisher::metadatafields{$unikey.'.'.$key};
1436: $value=~s/\"/\'\'/g;
1437: $file_content.=' '.$key.'="'.$value.'"' ;
1438: }
1439: $file_content.= '>'.
1440: &HTML::Entities::encode
1441: ($Apache::lonpublisher::metadatafields{$unikey},'<>&"').
1442: '</'.$tag.'>';
1443: }
1444: if ($fn =~ m|^$Apache::lonnet::perlvar{'lonDocRoot'}/userfiles|) {
1445: my ($path, $new_fn);
1446: if ($fn =~ m|$match_name/groups/\w+/portfolio/|) {
1447: ($path, $new_fn) = ($fn =~ m|/(groups/\w+/portfolio.*)/([^/]*)$|);
1448: } else {
1449: ($path, $new_fn) = ($fn =~ m|/(portfolio.*)/([^/]*)$|);
1450: }
1451: ($outcome,my $result) =
1452: &store_portfolio_metadata($formname,$file_content,
1453: $path,$new_fn,$uri,$caller);
1454: $output .= $result;
1455: } else {
1456: if (! ($mfh=Apache::File->new('>'.$fn))) {
1457: $output .= '<p><font color="red">';
1458: if ($caller eq 'transfer') {
1459: $output .= &mt('Could not transfer data in added fields to notes');
1460: } else {
1461: $output .= &mt('Could not write metadata');
1462: }
1463: $output .= ', '.&mt('FAIL').'</font></p>';
1464: $outcome = 'fail';
1465: } else {
1466: print $mfh ($file_content);
1467: close($mfh);
1468: &update_metadata_table($uri);
1469: $output .= '<p><font color="blue">';
1470: if ($caller eq 'transfer') {
1471: $output .= &mt('Transferred data in added fields to notes');
1472: } else {
1473: $output .= &mt('Wrote Metadata');
1474: }
1475: $output .= ' '.&Apache::lonlocal::locallocaltime(time).
1476: '</font></p>';
1477: $outcome = 'ok';
1478: }
1479: }
1480: return ($outcome,$output);
1481: }
1482:
1483: sub store_transferred_addedfields {
1484: my ($fn,$uri,$transfers) = @_;
1485: foreach my $item (@{$transfers}) {
1486: $Apache::lonpublisher::metadatafields{'notes'} .=
1487: ' '.$item.' = '.$Apache::lonpublisher::metadatafields{$item};
1488: }
1489: my ($outcome,$output) = &store_metadata($fn,$uri,'transfer');
1490: if ($outcome eq 'ok') {
1491: foreach my $item (@{$transfers}) {
1492: delete($Apache::lonpublisher::metadatafields{$item});
1493: }
1494: }
1495: }
1496:
1497: sub store_portfolio_metadata {
1498: my ($formname,$content,$path,$new_fn,$uri,$caller) = @_;
1499: my ($outcome,$output);
1500: $env{'form.'.$formname}=$content."\n";
1501: $env{'form.'.$formname.'.filename'}=$new_fn;
1502: my $result =&Apache::lonnet::userfileupload($formname,'',$path);
1503: if ($result =~ /(error|notfound)/) {
1504: $output = '<p><font color="red">';
1505: if ($caller eq 'transfer') {
1506: $output .=
1507: &mt('Could not transfer data in added fields to notes');
1508: } else {
1509: $output .= &mt('Could not write metadata');
1510: }
1511: $output .= ', '.&mt('FAIL').'</font></p>';
1512: $outcome = 'fail';
1513: } else {
1514: &update_metadata_table($uri);
1515: $output = '<p><font color="blue">';
1516: if ($caller eq 'transfer') {
1517: $output .= &mt('Transferred data in added fields to notes');
1518: } else {
1519: $output .= &mt('Wrote Metadata');
1520: }
1521: $output .= ' '.&Apache::lonlocal::locallocaltime(time).
1522: '</font></p>';
1523: $outcome = 'ok';
1524: }
1525: return ($outcome,$output);
1526: }
1527:
1528: sub update_metadata_table {
1529: my ($uri) = @_;
1530: my ($type,$udom,$uname,$file_name,$group) =
1531: &Apache::lonnet::parse_portfolio_url($uri);
1532: $file_name =~ s/\.meta$//;
1533: my $current_permissions =
1534: &Apache::lonnet::get_portfile_permissions($udom,$uname);
1535: my %access_controls =
1536: &Apache::lonnet::get_access_controls($current_permissions,$group,
1537: $file_name);
1538: my $access_hash = $access_controls{$file_name};
1539: my $available = 0;
1540: if (ref($access_hash) eq 'HASH') {
1541: foreach my $key (keys(%{$access_hash})) {
1542: my ($num,$scope,$end,$start) =
1543: ($key =~ /^([^:]+):([a-z]+)_(\d*)_?(\d*)$/);
1544: if ($scope eq 'public' || $scope eq 'guest') {
1545: $available = 1;
1546: last;
1547: }
1548: }
1549: }
1550: if ($available) {
1551: my $result =
1552: &Apache::lonnet::update_portfolio_table($uname,$udom,
1553: $file_name,'portfolio_metadata',$group,'update');
1554: }
1555: }
1556:
1557:
1558: 1;
1559: __END__
1560:
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