1: # The LearningOnline Network with CAPA
2: # Metadata display handler
3: #
4: # $Id: lonmeta.pm,v 1.221 2008/12/13 21:10:14 raeburn 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: sub get_dynamic_metadata_from_sql {
46: my ($url) = shift();
47: my ($authordom,$author)=($url=~m{^/res/($match_domain)/($match_username)/});
48: if (! defined($authordom)) {
49: $authordom = shift();
50: }
51: if (! defined($author)) {
52: $author = shift();
53: }
54: if (! defined($authordom) || ! defined($author)) {
55: return ();
56: }
57: my $query = 'SELECT * FROM metadata WHERE url LIKE "'.$url.'%"';
58: my $server = &Apache::lonnet::homeserver($author,$authordom);
59: my $reply = &Apache::lonnet::metadata_query($query,undef,undef,
60: ,[$server]);
61: return () if (! defined($reply) || ref($reply) ne 'HASH');
62: my $filename = $reply->{$server};
63: if (! defined($filename) || $filename =~ /^error/) {
64: return ();
65: }
66: my $max_time = time + 10; # wait 10 seconds for results at most
67: my %ReturnHash;
68: #
69: # Look for results
70: my $finished = 0;
71: while (! $finished && time < $max_time) {
72: my $datafile=$Apache::lonnet::perlvar{'lonDaemons'}.'/tmp/'.$filename;
73: if (! -e "$datafile.end") { next; }
74: my $fh;
75: if (!($fh=Apache::File->new($datafile))) { next; }
76: while (my $result = <$fh>) {
77: chomp($result);
78: next if (! $result);
79: my %hash=&LONCAPA::lonmetadata::metadata_col_to_hash('metadata',
80: map { &unescape($_) } split(/\,/,$result));
81: foreach my $key (keys(%hash)) {
82: $ReturnHash{$hash{'url'}}->{$key}=$hash{$key};
83: }
84: }
85: $finished = 1;
86: }
87: #
88: return %ReturnHash;
89: }
90:
91:
92: # Fetch and evaluate dynamic metadata
93: sub dynamicmeta {
94: my $url=&Apache::lonnet::declutter(shift);
95: $url=~s/\.meta$//;
96: my ($adomain,$aauthor)=($url=~/^($match_domain)\/($match_username)\//);
97: my $regexp=$url;
98: $regexp=~s/(\W)/\\$1/g;
99: $regexp='___'.$regexp.'___';
100: my %evaldata=&Apache::lonnet::dump('nohist_resevaldata',$adomain,
101: $aauthor,$regexp);
102: my %DynamicData = &LONCAPA::lonmetadata::process_reseval_data(\%evaldata);
103: my %Data = &LONCAPA::lonmetadata::process_dynamic_metadata($url,
104: \%DynamicData);
105: #
106: # Deal with 'count' separately
107: $Data{'count'} = &access_count($url,$aauthor,$adomain);
108: #
109: # Debugging code I will probably need later
110: if (0) {
111: &Apache::lonnet::logthis('Dynamic Metadata');
112: while(my($k,$v)=each(%Data)){
113: &Apache::lonnet::logthis(' "'.$k.'"=>"'.$v.'"');
114: }
115: &Apache::lonnet::logthis('-------------------');
116: }
117: return %Data;
118: }
119:
120: sub access_count {
121: my ($src,$author,$adomain) = @_;
122: my %countdata=&Apache::lonnet::dump('nohist_accesscount',$adomain,
123: $author,$src);
124: if (! exists($countdata{$src})) {
125: return &mt('Not Available');
126: } else {
127: return $countdata{$src};
128: }
129: }
130:
131: # Try to make an alt tag if there is none
132: sub alttag {
133: my ($base,$src)=@_;
134: my $fullpath=&Apache::lonnet::hreflocation($base,$src);
135: my $alttag=&Apache::lonnet::metadata($fullpath,'title').' '.
136: &Apache::lonnet::metadata($fullpath,'subject').' '.
137: &Apache::lonnet::metadata($fullpath,'abstract');
138: $alttag=~s/\s+/ /gs;
139: $alttag=~s/\"//gs;
140: $alttag=~s/\'//gs;
141: $alttag=~s/\s+$//gs;
142: $alttag=~s/^\s+//gs;
143: if ($alttag) {
144: return $alttag;
145: } else {
146: return &mt('No information available');
147: }
148: }
149:
150: # Author display
151: sub authordisplay {
152: my ($aname,$adom)=@_;
153: return &Apache::loncommon::aboutmewrapper
154: (&Apache::loncommon::plainname($aname,$adom),
155: $aname,$adom,'preview').' <tt>['.$aname.':'.$adom.']</tt>';
156: }
157:
158: # Pretty display
159: sub evalgraph {
160: my $value=shift;
161: if (! $value) {
162: return '';
163: }
164: my $val=int($value*10.+0.5)-10;
165: my $output='<table border="0" cellpadding="0" cellspacing="0"><tr>';
166: if ($val>=20) {
167: $output.='<td width="20" bgcolor="#555555">'.(' ' x2).'</td>';
168: } else {
169: $output.='<td width="'.($val).'" bgcolor="#555555"> </td>'.
170: '<td width="'.(20-$val).'" bgcolor="#FF3333"> </td>';
171: }
172: $output.='<td bgcolor="#FFFF33"> </td>';
173: if ($val>20) {
174: $output.='<td width="'.($val-20).'" bgcolor="#33FF33"> </td>'.
175: '<td width="'.(40-$val).'" bgcolor="#555555"> </td>';
176: } else {
177: $output.='<td width="20" bgcolor="#555555">'.(' ' x2).'</td>';
178: }
179: $output.='<td> ('.sprintf("%5.2f",$value).') </td></tr></table>';
180: return $output;
181: }
182:
183: sub diffgraph {
184: my $value=shift;
185: if (! $value) {
186: return '';
187: }
188: my $val=int(40.0*$value+0.5);
189: my @colors=('#FF9933','#EEAA33','#DDBB33','#CCCC33',
190: '#BBDD33','#CCCC33','#DDBB33','#EEAA33');
191: my $output='<table border="0" cellpadding="0" cellspacing="0"><tr>';
192: for (my $i=0;$i<8;$i++) {
193: if ($val>$i*5) {
194: $output.='<td width="5" bgcolor="'.$colors[$i].'"> </td>';
195: } else {
196: $output.='<td width="5" bgcolor="#555555"> </td>';
197: }
198: }
199: $output.='<td> ('.sprintf("%3.2f",$value).') </td></tr></table>';
200: return $output;
201: }
202:
203:
204: # The field names
205: sub fieldnames {
206: my $file_type=shift;
207: my %fields =
208: ('title' => 'Title',
209: 'author' =>'Author(s)',
210: 'authorspace' => 'Author Space',
211: 'modifyinguser' => 'Last Modifying User',
212: 'subject' => 'Subject',
213: 'standards' => 'Standards',
214: 'keywords' => 'Keyword(s)',
215: 'notes' => 'Notes',
216: 'abstract' => 'Abstract',
217: 'lowestgradelevel' => 'Lowest Grade Level',
218: 'highestgradelevel' => 'Highest Grade Level');
219:
220: if ( !defined($file_type) || ($file_type ne 'portfolio' && $file_type ne 'groups') ) {
221: %fields =
222: (%fields,
223: 'domain' => 'Domain',
224: 'mime' => 'MIME Type',
225: 'language' => 'Language',
226: 'creationdate' => 'Creation Date',
227: 'lastrevisiondate' => 'Last Revision Date',
228: 'owner' => 'Publisher/Owner',
229: 'copyright' => 'Copyright/Distribution',
230: 'customdistributionfile' => 'Custom Distribution File',
231: 'sourceavail' => 'Source Available',
232: 'sourcerights' => 'Source Custom Distribution File',
233: 'obsolete' => 'Obsolete',
234: 'obsoletereplacement' => 'Suggested Replacement for Obsolete File',
235: 'count' => 'Network-wide number of accesses (hits)',
236: 'course' => 'Network-wide number of courses using resource',
237: 'course_list' => 'Network-wide courses using resource',
238: 'sequsage' => 'Number of resources using or importing resource',
239: 'sequsage_list' => 'Resources using or importing resource',
240: 'goto' => 'Number of resources that follow this resource in maps',
241: 'goto_list' => 'Resources that follow this resource in maps',
242: 'comefrom' => 'Number of resources that lead up to this resource in maps',
243: 'comefrom_list' => 'Resources that lead up to this resource in maps',
244: 'clear' => 'Material presented in clear way',
245: 'depth' => 'Material covered with sufficient depth',
246: 'helpful' => 'Material is helpful',
247: 'correct' => 'Material appears to be correct',
248: 'technical' => 'Resource is technically correct',
249: 'avetries' => 'Average number of tries till solved',
250: 'stdno' => 'Statistics calculated for number of students',
251: 'difficulty' => 'Degree of difficulty',
252: 'disc' => 'Degree of discrimination',
253: 'dependencies' => 'Resources used by this resource',
254: );
255: }
256: return &Apache::lonlocal::texthash(%fields);
257: }
258:
259: sub portfolio_linked_path {
260: my ($path,$group,$port_path) = @_;
261:
262: my $start = 'portfolio';
263: if ($group) {
264: $start = "groups/$group/".$start;
265: }
266: my %anchor_fields = (
267: 'selectfile' => $start,
268: 'currentpath' => '/'
269: );
270: my $result = &Apache::portfolio::make_anchor($port_path,\%anchor_fields,$start);
271: my $fullpath = '/';
272: my (undef,@tree) = split('/',$path);
273: my $filename = pop(@tree);
274: foreach my $dir (@tree) {
275: $fullpath .= $dir.'/';
276: $result .= '/';
277: my %anchor_fields = (
278: 'selectfile' => $dir,
279: 'currentpath' => $fullpath
280: );
281: $result .= &Apache::portfolio::make_anchor($port_path,\%anchor_fields,$dir);
282: }
283: $result .= "/$filename";
284: return $result;
285: }
286:
287: sub get_port_path_and_group {
288: my ($uri)=@_;
289:
290: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
291: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
292:
293: my ($port_path,$group);
294: if ($uri =~ m{^/editupload/\Q$cdom\E/\Q$cnum\E/groups/}) {
295: $group = (split('/',$uri))[5];
296: $port_path = '/adm/coursegrp_portfolio';
297: } else {
298: $port_path = '/adm/portfolio';
299: }
300: if ($env{'form.group'} ne $group) {
301: $env{'form.group'} = $group;
302: }
303: return ($port_path,$group);
304: }
305:
306: sub portfolio_display_uri {
307: my ($uri,$as_links)=@_;
308:
309: my ($port_path,$group) = &get_port_path_and_group($uri);
310:
311: $uri =~ s|.*/(portfolio/.*)$|$1|;
312: my ($res_uri,$meta_uri) = ($uri,$uri);
313: if ($uri =~ /\.meta$/) {
314: $res_uri =~ s/\.meta//;
315: } else {
316: $meta_uri .= '.meta';
317: }
318:
319: my ($path) = ($res_uri =~ m|^portfolio(.*/)[^/]*$|);
320: if ($as_links) {
321: $res_uri = &portfolio_linked_path($res_uri,$group,$port_path);
322: $meta_uri = &portfolio_linked_path($meta_uri,$group,$port_path);
323: }
324: return ($res_uri,$meta_uri,$path);
325: }
326:
327: sub pre_select_course {
328: my ($r,$uri) = @_;
329: my $output;
330: my $fn=&Apache::lonnet::filelocation('',$uri);
331: my ($res_uri,$meta_uri,$path) = &portfolio_display_uri($uri);
332: %Apache::lonpublisher::metadatafields=();
333: %Apache::lonpublisher::metadatakeys=();
334: my $result=&Apache::lonnet::getfile($fn);
335: if ($result == -1){
336: $r->print(&mt('Creating new file [_1]'),$meta_uri);
337: } else {
338: &Apache::lonpublisher::metaeval($result);
339: }
340: $r->print('<hr /><form method="post" action="" >');
341: $r->print('<p>'.&mt('If you would like to associate this resource ([_1]) with a current or previous course, please select one from the list below, otherwise select, \'None\'','<tt>'.$res_uri.'</tt>').'</p>');
342: $output = &select_course();
343: $r->print($output.'<br /><input type="submit" name="store" value="'.
344: &mt('Associate Resource With Selected Course').'" />');
345: $r->print('<input type="hidden" name="currentpath" value="'.$env{'form.currentpath'}.'" />');
346: $r->print('<input type="hidden" name="associate" value="true" />');
347: $r->print('</form>');
348:
349: my ($port_path,$group) = &get_port_path_and_group($uri);
350: my $group_input;
351: if ($group) {
352: $group_input = '<input type="hidden" name="group" value="'.$group.'" />';
353: }
354: $r->print('<br /><br /><form method="post" action="'.$port_path.'">'.
355: '<input type="hidden" name="currentpath" value="'.$path.'" />'.
356: $group_input.
357: '<input type="submit" name="cancel" value="'.&mt('Cancel').'" />'.
358: '</form>');
359:
360: return;
361: }
362: sub select_course {
363: my $output=$/;
364: my $current_restriction=
365: $Apache::lonpublisher::metadatafields{'courserestricted'};
366: my $selected = ($current_restriction eq 'none' ? 'selected="selected"'
367: : '');
368: if ($current_restriction =~ /^course\.($match_domain\_$match_courseid)$/) {
369: my $assoc_crs = $1;
370: my $added_metadata_fields = &Apache::lonparmset::get_added_meta_fieldnames($assoc_crs);
371: if (ref($added_metadata_fields) eq 'HASH') {
372: if (keys(%{$added_metadata_fields}) > 0) {
373: my $transfernotes;
374: foreach my $field_name (keys(%{$added_metadata_fields})) {
375: my $value = $Apache::lonpublisher::metadatafields{$field_name};
376: if ($value) {
377: $transfernotes .=
378: &Apache::loncommon::start_data_table_row().
379: '<td><input type="checkbox" name="transfer_'.
380: $field_name.'" value="1" /></td><td>'.
381: $field_name.'</td><td>'.$value.'</td>'.
382: &Apache::loncommon::end_data_table_row();
383: }
384: }
385: if ($transfernotes ne '') {
386: my %courseinfo = &Apache::lonnet::coursedescription($assoc_crs,{'one_time' => 1});
387: my $assoc_crs_description = $courseinfo{'description'};
388: $output .= &mt('This resource is currently associated with a course ([_1]) which includes added metadata fields specific to the course.',$assoc_crs_description).'<br />'."\n".
389: &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 />'.
390: &Apache::loncommon::start_data_table().
391: &Apache::loncommon::start_data_table_header_row().
392: '<th>Copy to notes?</th>'."\n".
393: '<th>Field name</th>'."\n".
394: '<th>Values</th>'."\n".
395: &Apache::loncommon::end_data_table_header_row().
396: $transfernotes.
397: &Apache::loncommon::end_data_table().'<br />';
398: }
399: }
400: }
401: }
402: $output .= '<select name="new_courserestricted" >';
403: $output .= '<option value="none" '.$selected.'>'.
404: &mt('None').'</option>'.$/;
405: my %courses;
406: foreach my $key (keys(%env)) {
407: if ($key !~ m/^course\.(.+)\.description$/) { next; }
408: my $cid = $1;
409: if ($env{$key} !~ /\S/) { next; }
410: $courses{$key} = $cid;
411: }
412: foreach my $key (sort { lc($env{$a}) cmp lc($env{$b}) } (keys(%courses))) {
413: my $cid = 'course.'.$courses{$key};
414: my $selected = ($current_restriction eq $cid ? 'selected="selected"'
415: : '');
416: if ($env{$key} !~ /\S/) { next; }
417: $output .= '<option value="'.$cid.'" '.$selected.'>';
418: $output .= $env{$key};
419: $output .= '</option>'.$/;
420: $selected = '';
421: }
422: $output .= '</select><br />';
423: return ($output);
424: }
425: # Pretty printing of metadata field
426:
427: sub prettyprint {
428: my ($type,$value,$target,$prefix,$form,$noformat)=@_;
429: # $target,$prefix,$form are optional and for filecrumbs only
430: if (! defined($value)) {
431: return ' ';
432: }
433: # Title
434: if ($type eq 'title') {
435: return '<font size="+1" face="arial">'.$value.'</font>';
436: }
437: # Dates
438: if (($type eq 'creationdate') ||
439: ($type eq 'lastrevisiondate')) {
440: return ($value?&Apache::lonlocal::locallocaltime(
441: &Apache::lonmysql::unsqltime($value)):
442: &mt('not available'));
443: }
444: # Language
445: if ($type eq 'language') {
446: return &Apache::loncommon::languagedescription($value);
447: }
448: # Copyright
449: if ($type eq 'copyright') {
450: return &Apache::loncommon::copyrightdescription($value);
451: }
452: # Copyright
453: if ($type eq 'sourceavail') {
454: return &Apache::loncommon::source_copyrightdescription($value);
455: }
456: # MIME
457: if ($type eq 'mime') {
458: return '<img src="'.&Apache::loncommon::icon($value).'" /> '.
459: &Apache::loncommon::filedescription($value);
460: }
461: # Person
462: if (($type eq 'author') ||
463: ($type eq 'owner') ||
464: ($type eq 'modifyinguser') ||
465: ($type eq 'authorspace')) {
466: $value=~s/($match_username)(\:|\@)($match_domain)/&authordisplay($1,$3)/gse;
467: return $value;
468: }
469: # Gradelevel
470: if (($type eq 'lowestgradelevel') ||
471: ($type eq 'highestgradelevel')) {
472: return &Apache::loncommon::gradeleveldescription($value);
473: }
474: # Only for advance users below
475: if (! $env{'user.adv'}) {
476: return '<i>- '.&mt('not displayed').' -</i>';
477: }
478: # File
479: if (($type eq 'customdistributionfile') ||
480: ($type eq 'obsoletereplacement') ||
481: ($type eq 'goto_list') ||
482: ($type eq 'comefrom_list') ||
483: ($type eq 'sequsage_list') ||
484: ($type eq 'dependencies')) {
485: return '<font size="-1"><ul>'.join("\n",map {
486: my $url = &Apache::lonnet::clutter_with_no_wrapper($_);
487: my $title = &Apache::lonnet::gettitle($url);
488: if ($title eq '') {
489: $title = 'Untitled';
490: if ($url =~ /\.sequence$/) {
491: $title .= ' Sequence';
492: } elsif ($url =~ /\.page$/) {
493: $title .= ' Page';
494: } elsif ($url =~ /\.problem$/) {
495: $title .= ' Problem';
496: } elsif ($url =~ /\.html$/) {
497: $title .= ' HTML document';
498: } elsif ($url =~ m:/syllabus$:) {
499: $title .= ' Syllabus';
500: }
501: }
502: $_ = '<li>'.$title.' '.
503: &Apache::lonhtmlcommon::crumbs($url,$target,$prefix,$form,'-1',$noformat).
504: '</li>'
505: } split(/\s*\,\s*/,$value)).'</ul></font>';
506: }
507: # Evaluations
508: if (($type eq 'clear') ||
509: ($type eq 'depth') ||
510: ($type eq 'helpful') ||
511: ($type eq 'correct') ||
512: ($type eq 'technical')) {
513: return &evalgraph($value);
514: }
515: # Difficulty
516: if ($type eq 'difficulty' || $type eq 'disc') {
517: return &diffgraph($value);
518: }
519: # List of courses
520: if ($type=~/\_list/) {
521: my @Courses = split(/\s*\,\s*/,$value);
522: my $Str='<font size="-1"><ul>';
523: my %descriptions;
524: foreach my $course (@Courses) {
525: my %courseinfo =
526: &Apache::lonnet::coursedescription($course,
527: {'one_time' => 1});
528: if (! exists($courseinfo{'num'}) || $courseinfo{'num'} eq '') {
529: next;
530: }
531: $descriptions{join('\0',@courseinfo{'domain','description'})} .=
532: '<li><a href="/public/'.$courseinfo{'domain'}.'/'.
533: $courseinfo{'num'}.'/syllabus" target="preview">'.
534: $courseinfo{'description'}.' ('.$courseinfo{'domain'}.
535: ')</a></li>';
536: }
537: foreach my $course (sort {lc($a) cmp lc($b)} (keys(%descriptions))) {
538: $Str .= $descriptions{$course};
539: }
540:
541: return $Str.'</ul></font>';
542: }
543: # No pretty print found
544: return $value;
545: }
546:
547: # Pretty input of metadata field
548: sub direct {
549: return shift;
550: }
551:
552: sub selectbox {
553: my ($name,$value,$functionref,@idlist)=@_;
554: if (! defined($functionref)) {
555: $functionref=\&direct;
556: }
557: my $selout='<select name="'.$name.'">';
558: foreach my $id (@idlist) {
559: $selout.='<option value=\''.$id.'\'';
560: if ($id eq $value) {
561: $selout.=' selected>'.&{$functionref}($id).'</option>';
562: } else {
563: $selout.='>'.&{$functionref}($id).'</option>';
564: }
565: }
566: return $selout.'</select>';
567: }
568:
569: sub relatedfield {
570: my ($show,$relatedsearchflag,$relatedsep,$fieldname,$relatedvalue)=@_;
571: if (! $relatedsearchflag) {
572: return '';
573: }
574: if (! defined($relatedsep)) {
575: $relatedsep=' ';
576: }
577: if (! $show) {
578: return $relatedsep.' ';
579: }
580: return $relatedsep.'<input type="checkbox" name="'.$fieldname.'_related"'.
581: ($relatedvalue?' checked="1"':'').' />';
582: }
583:
584: sub prettyinput {
585: my ($type,$value,$fieldname,$formname,
586: $relatedsearchflag,$relatedsep,$relatedvalue,$size,$course_key)=@_;
587: if (! defined($size)) {
588: $size = 80;
589: }
590: my $output;
591: if (defined($course_key)
592: && exists($env{$course_key.'.metadata.'.$type.'.options'})) {
593: my $stu_add;
594: my $only_one;
595: my %meta_options;
596: my @cur_values_inst;
597: my $cur_values_stu;
598: my $values = $env{$course_key.'.metadata.'.$type.'.values'};
599: if ($env{$course_key.'.metadata.'.$type.'.options'} =~ m/stuadd/) {
600: $stu_add = 'true';
601: }
602: if ($env{$course_key.'.metadata.'.$type.'.options'} =~ m/onlyone/) {
603: $only_one = 'true';
604: }
605: # need to take instructor values out of list where instructor and student
606: # values may be mixed.
607: if ($values) {
608: foreach my $item (split(/,/,$values)) {
609: $item =~ s/^\s+//;
610: $meta_options{$item} = $item;
611: }
612: foreach my $item (split(/,/,$value)) {
613: $item =~ s/^\s+//;
614: if ($meta_options{$item}) {
615: push(@cur_values_inst,$item);
616: } else {
617: if ($item ne '') {
618: $cur_values_stu .= $item.',';
619: }
620: }
621: }
622: $cur_values_stu =~ s/,$//;
623: my @key_order = sort(keys(%meta_options));
624: unshift(@key_order,'');
625: $meta_options{''} = 'Not specified';
626: $meta_options{'select_form_order'} = \@key_order;
627: } else {
628: $cur_values_stu = $value;
629: }
630: if ($type eq 'courserestricted') {
631: return (&select_course());
632: # return ('<input type="hidden" name="new_courserestricted" value="'.$course_key.'" />');
633: }
634: if (($type eq 'keywords') || ($type eq 'subject')
635: || ($type eq 'author')||($type eq 'notes')
636: || ($type eq 'abstract')|| ($type eq 'title')|| ($type eq 'standards')
637: || (exists($env{$course_key.'.metadata.'.$type.'.added'}))) {
638:
639: if ($values) {
640: if ($only_one) {
641: $output .= (&Apache::loncommon::select_form($cur_values_inst[0],'new_'.$type,%meta_options));
642: } else {
643: $output .= (&Apache::loncommon::multiple_select_form('new_'.$type,\@cur_values_inst,undef,\%meta_options));
644: }
645: }
646: if ($stu_add) {
647: $output .= '<input type="text" name="'.$fieldname.'" size="'.$size.'" '.
648: 'value="'.$cur_values_stu.'" />'.
649: &relatedfield(1,$relatedsearchflag,$relatedsep,$fieldname,
650: $relatedvalue);
651: }
652: return ($output);
653: }
654: if (($type eq 'lowestgradelevel') ||
655: ($type eq 'highestgradelevel')) {
656: return &Apache::loncommon::select_level_form($value,$fieldname).
657: &relatedfield(0,$relatedsearchflag,$relatedsep);
658: }
659: return();
660: }
661: # Language
662: if ($type eq 'language') {
663: return &selectbox($fieldname,
664: $value,
665: \&Apache::loncommon::languagedescription,
666: (&Apache::loncommon::languageids)).
667: &relatedfield(0,$relatedsearchflag,$relatedsep);
668: }
669: # Copyright
670: if ($type eq 'copyright') {
671: return &selectbox($fieldname,
672: $value,
673: \&Apache::loncommon::copyrightdescription,
674: (&Apache::loncommon::copyrightids)).
675: &relatedfield(0,$relatedsearchflag,$relatedsep);
676: }
677: # Source Copyright
678: if ($type eq 'sourceavail') {
679: return &selectbox($fieldname,
680: $value,
681: \&Apache::loncommon::source_copyrightdescription,
682: (&Apache::loncommon::source_copyrightids)).
683: &relatedfield(0,$relatedsearchflag,$relatedsep);
684: }
685: # Gradelevels
686: if (($type eq 'lowestgradelevel') ||
687: ($type eq 'highestgradelevel')) {
688: return &Apache::loncommon::select_level_form($value,$fieldname).
689: &relatedfield(0,$relatedsearchflag,$relatedsep);
690: }
691: # Obsolete
692: if ($type eq 'obsolete') {
693: return '<input type="checkbox" name="'.$fieldname.'"'.
694: ($value?' checked="1"':'').' />'.
695: &relatedfield(0,$relatedsearchflag,$relatedsep);
696: }
697: # Obsolete replacement file
698: if ($type eq 'obsoletereplacement') {
699: return '<input type="text" name="'.$fieldname.
700: '" size="60" value="'.$value.'" /><a href="javascript:openbrowser'.
701: "('".$formname."','".$fieldname."'".
702: ",'')\">".&mt('Select').'</a>'.
703: &relatedfield(0,$relatedsearchflag,$relatedsep);
704: }
705: # Customdistribution file
706: if ($type eq 'customdistributionfile') {
707: return '<input type="text" name="'.$fieldname.
708: '" size="60" value="'.$value.'" /><a href="javascript:openbrowser'.
709: "('".$formname."','".$fieldname."'".
710: ",'rights')\">".&mt('Select').'</a>'.
711: &relatedfield(0,$relatedsearchflag,$relatedsep);
712: }
713: # Source Customdistribution file
714: if ($type eq 'sourcerights') {
715: return '<input type="text" name="'.$fieldname.
716: '" size="60" value="'.$value.'" /><a href="javascript:openbrowser'.
717: "('".$formname."','".$fieldname."'".
718: ",'rights')\">".&mt('Select').'</a>'.
719: &relatedfield(0,$relatedsearchflag,$relatedsep);
720: }
721: if ($type eq 'courserestricted') {
722: return (&select_course());
723: #return ('<input type="hidden" name="new_courserestricted" value="'.$course_key.'" />');
724: }
725:
726: # Dates
727: if (($type eq 'creationdate') ||
728: ($type eq 'lastrevisiondate')) {
729: return
730: &Apache::lonhtmlcommon::date_setter($formname,$fieldname,$value).
731: &relatedfield(0,$relatedsearchflag,$relatedsep);
732: }
733: # No pretty input found
734: $value=~s/^\s+//gs;
735: $value=~s/\s+$//gs;
736: $value=~s/\s+/ /gs;
737: $value=~s/\"/\"\;/gs;
738: return
739: '<input type="text" name="'.$fieldname.'" size="'.$size.'" '.
740: 'value="'.$value.'" />'.
741: &relatedfield(1,$relatedsearchflag,$relatedsep,$fieldname,
742: $relatedvalue);
743: }
744:
745: # Main Handler
746: sub handler {
747: my $r=shift;
748: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
749: ['currentpath','changecourse']);
750: my $uri=$r->uri;
751: #
752: # Set document type
753: &Apache::loncommon::content_type($r,'text/html');
754: $r->send_http_header;
755: return OK if $r->header_only;
756: my ($resdomain,$resuser)=
757: (&Apache::lonnet::declutter($uri)=~/^($match_domain)\/($match_username)\//);
758: if ($uri=~m:/adm/bombs/(.*)$:) {
759: $r->print(&Apache::loncommon::start_page('Error Messages'));
760: # Looking for all bombs?
761: &report_bombs($r,$uri);
762: } elsif ($uri=~m|^/editupload/[^/]+/[^/]+/portfolio/|) {
763: ($resdomain,$resuser)=
764: (&Apache::lonnet::declutter($uri)=~m|^($match_domain)/($match_name)/portfolio|);
765: $r->print(&Apache::loncommon::start_page('Edit Portfolio File Catalog Information',
766: undef,
767: {'domain' => $resdomain,}));
768: if ($env{'form.store'}) {
769: &present_editable_metadata($r,$uri,'portfolio');
770: } else {
771: my $fn=&Apache::lonnet::filelocation('',$uri);
772: %Apache::lonpublisher::metadatafields=();
773: %Apache::lonpublisher::metadatakeys=();
774: my $result=&Apache::lonnet::getfile($fn);
775: &Apache::lonpublisher::metaeval($result);
776: if ((!$Apache::lonpublisher::metadatafields{'courserestricted'}) ||
777: ($env{'form.changecourse'} eq 'true')) {
778: &pre_select_course($r,$uri);
779: } else {
780: &present_editable_metadata($r,$uri,'portfolio');
781: }
782: }
783: } elsif ($uri=~m|^/editupload/[^/]+/[^/]+/groups/|) {
784: $r->print(&Apache::loncommon::start_page('Edit Group Portfolio File Catalog Information',
785: undef,
786: {'domain' => $resdomain,}));
787: &present_editable_metadata($r,$uri,'groups');
788: } elsif ($uri=~m|^/~|) {
789: # Construction space
790: $r->print(&Apache::loncommon::start_page('Edit Catalog Information',
791: "\n".'<script type="text/javascript">'."\n".
792: &Apache::loncommon::browser_and_searcher_javascript().
793: "\n".'</script>',
794: {'domain' => $resdomain,}));
795: &present_editable_metadata($r,$uri);
796: } else {
797: $r->print(&Apache::loncommon::start_page('Metadata',
798: undef,
799: {'domain' => $resdomain,}));
800: &present_uneditable_metadata($r,$uri);
801: }
802: $r->print(&Apache::loncommon::end_page());
803: return OK;
804: }
805:
806: #####################################################
807: #####################################################
808: ### ###
809: ### Report Bombs ###
810: ### ###
811: #####################################################
812: #####################################################
813: sub report_bombs {
814: my ($r,$uri) = @_;
815: # Set document type
816: $uri =~ s:/adm/bombs/::;
817: $uri = &Apache::lonnet::declutter($uri);
818: $r->print('<h1>'.&Apache::lonnet::clutter($uri).'</h1>');
819: my ($domain,$author)=($uri=~/^($match_domain)\/($match_username)\//);
820: if (&Apache::loncacc::constructaccess('/~'.$author.'/',$domain)) {
821: if ($env{'form.clearbombs'}) {
822: &Apache::lonmsg::clear_author_res_msg($uri);
823: }
824: my $clear=&mt('Clear all Messages in Subdirectory');
825: my $cancel=&mt('Back to Directory');
826: my $cancelurl=$uri;
827: $cancelurl=~s/^\Q$domain\E/\/priv/;
828: $r->print(<<ENDCLEAR);
829: <form method="post">
830: <input type="submit" name="clearbombs" value="$clear" />
831: <a href="$cancelurl">$cancel</a>
832: </form><hr />
833: ENDCLEAR
834: my %brokenurls =
835: &Apache::lonmsg::all_url_author_res_msg($author,$domain);
836: foreach my $key (sort(keys(%brokenurls))) {
837: if ($key=~/^\Q$uri\E/) {
838: $r->print
839: ('<a href="'.&Apache::lonnet::clutter($key).'">'.$key.'</a>'.
840: &Apache::lonmsg::retrieve_author_res_msg($key).
841: '<hr />');
842: }
843: }
844: } else {
845: $r->print(&mt('Not authorized'));
846: }
847: return;
848: }
849:
850: #####################################################
851: #####################################################
852: ### ###
853: ### Uneditable Metadata Display ###
854: ### ###
855: #####################################################
856: #####################################################
857: sub present_uneditable_metadata {
858: my ($r,$uri) = @_;
859: #
860: my $uploaded = ($uri =~ m|/uploaded/|);
861: my %content=();
862: # Read file
863: foreach my $key (split(/\,/,&Apache::lonnet::metadata($uri,'keys'))) {
864: $content{$key}=&Apache::lonnet::metadata($uri,$key);
865: }
866: # Render Output
867: # displayed url
868: my ($thisversion)=($uri=~/\.(\d+)\.(\w+)\.meta$/);
869: $uri=~s/\.meta$//;
870: my $disuri=&Apache::lonnet::clutter_with_no_wrapper($uri);
871: # version
872: my $versiondisplay='';
873: if (!$uploaded) {
874: my $currentversion=&Apache::lonnet::getversion($disuri);
875: if ($thisversion) {
876: $versiondisplay=&mt('Version').': '.$thisversion.
877: ' ('.&mt('most recent version').': '.
878: ($currentversion>0 ?
879: $currentversion :
880: &mt('information not available')).')';
881: } else {
882: $versiondisplay='Version: '.$currentversion;
883: }
884: }
885: # crumbify displayed URL uri target prefix form size
886: $disuri=&Apache::lonhtmlcommon::crumbs($disuri,undef, undef, undef,'+1');
887: $disuri =~ s:<br />::g;
888: # obsolete
889: my $obsolete=$content{'obsolete'};
890: my $obsoletewarning='';
891: if (($obsolete) && ($env{'user.adv'})) {
892: $obsoletewarning='<p><span class="LC_warning">'.
893: &mt('This resource has been marked obsolete by the author(s)').
894: '</span></p>';
895: }
896: #
897: my %lt=&fieldnames();
898: my $table='';
899: my $title = $content{'title'};
900: if (! defined($title)) {
901: $title = 'Untitled Resource';
902: }
903: my @fields;
904: if ($uploaded) {
905: @fields = ('title','author','subject','keywords','notes','abstract',
906: 'lowestgradelevel','highestgradelevel','standards','mime',
907: 'owner');
908: } else {
909: @fields = ('title',
910: 'author',
911: 'subject',
912: 'keywords',
913: 'notes',
914: 'abstract',
915: 'lowestgradelevel',
916: 'highestgradelevel',
917: 'standards',
918: 'mime',
919: 'language',
920: 'creationdate',
921: 'lastrevisiondate',
922: 'owner',
923: 'copyright',
924: 'customdistributionfile',
925: 'sourceavail',
926: 'sourcerights',
927: 'obsolete',
928: 'obsoletereplacement');
929: }
930: foreach my $field (@fields) {
931: $table.=&Apache::lonhtmlcommon::row_title($lt{$field})
932: .&prettyprint($field,$content{$field})
933: .&Apache::lonhtmlcommon::row_closure();
934: delete($content{$field});
935: }
936: #
937: $r->print("<h2>$title</h2>"
938: .'<p>'
939: .$disuri.'<br />'
940: .$obsoletewarning
941: .$versiondisplay
942: .'</p>'
943: .&Apache::lonhtmlcommon::start_pick_box()
944: .$table
945: .&Apache::lonhtmlcommon::end_pick_box()
946: );
947: if (!$uploaded && $env{'user.adv'}) {
948: &print_dynamic_metadata($r,$uri,\%content);
949: }
950: return;
951: }
952:
953: sub print_dynamic_metadata {
954: my ($r,$uri,$content) = @_;
955: #
956: my %content = %$content;
957: my %lt=&fieldnames();
958: #
959: my $description = 'Dynamic Metadata (updated periodically)';
960: $r->print('<h3>'.&mt($description).'</h3>'.
961: &mt('Processing'));
962: $r->rflush();
963: my %items=&fieldnames();
964: my %dynmeta=&dynamicmeta($uri);
965: #
966: # General Access and Usage Statistics
967: if (exists($dynmeta{'count'}) ||
968: exists($dynmeta{'sequsage'}) ||
969: exists($dynmeta{'comefrom'}) ||
970: exists($dynmeta{'goto'}) ||
971: exists($dynmeta{'course'})) {
972: $r->print('<h4>'.&mt('Access and Usage Statistics').'</h4>'.
973: &Apache::lonhtmlcommon::start_pick_box());
974: foreach my $item ('count',
975: 'sequsage','sequsage_list',
976: 'comefrom','comefrom_list',
977: 'goto','goto_list',
978: 'course','course_list') {
979: $r->print(&Apache::lonhtmlcommon::row_title($lt{$item})
980: .&prettyprint($item,$dynmeta{$item})
981: .&Apache::lonhtmlcommon::row_closure()
982: );
983: }
984: $r->print(&Apache::lonhtmlcommon::end_pick_box());
985: } else {
986: $r->print('<h4>'.&mt('No Access or Usages Statistics are available for this resource.').'</h4>');
987: }
988: #
989: # Assessment statistics
990: if ($uri=~/\.(problem|exam|quiz|assess|survey|form)$/) {
991: if (exists($dynmeta{'stdno'}) ||
992: exists($dynmeta{'avetries'}) ||
993: exists($dynmeta{'difficulty'}) ||
994: exists($dynmeta{'disc'})) {
995: # This is an assessment, print assessment data
996: $r->print('<h4>'.
997: &mt('Overall Assessment Statistical Data').
998: '</h4>'.
999: &Apache::lonhtmlcommon::start_pick_box());
1000: $r->print(&Apache::lonhtmlcommon::row_title($lt{'stdno'})
1001: .&prettyprint('stdno',$dynmeta{'stdno'})
1002: .&Apache::lonhtmlcommon::row_closure()
1003: );
1004: foreach my $item ('avetries','difficulty','disc') {
1005: $r->print(&Apache::lonhtmlcommon::row_title($lt{$item})
1006: .&prettyprint($item,sprintf('%5.2f',$dynmeta{$item}))
1007: .&Apache::lonhtmlcommon::row_closure()
1008: );
1009: }
1010: $r->print(&Apache::lonhtmlcommon::end_pick_box());
1011: }
1012: if (exists($dynmeta{'stats'})) {
1013: #
1014: # New assessment statistics
1015: $r->print('<h4>'.
1016: &mt('Recent Detailed Assessment Statistical Data').
1017: '</h4>');
1018: my $table=&Apache::loncommon::start_data_table()
1019: .&Apache::loncommon::start_data_table_header_row()
1020: .'<th>'.&mt('Course').'</th>'
1021: .'<th>'.&mt('Section(s)').'</th>'
1022: .'<th>'.&mt('Num Students').'</th>'
1023: .'<th>'.&mt('Mean Tries').'</th>'
1024: .'<th>'.&mt('Degree of Difficulty').'</th>'
1025: .'<th>'.&mt('Degree of Discrimination').'</th>'
1026: .'<th>'.&mt('Time of computation').'</th>'
1027: .&Apache::loncommon::end_data_table_header_row().$/;
1028: foreach my $identifier (sort(keys(%{$dynmeta{'stats'}}))) {
1029: my $data = $dynmeta{'stats'}->{$identifier};
1030: my $course = $data->{'course'};
1031: my %courseinfo =
1032: &Apache::lonnet::coursedescription($course,
1033: {'one_time' => 1});
1034: if (! exists($courseinfo{'num'}) || $courseinfo{'num'} eq '') {
1035: &Apache::lonnet::logthis('lookup for '.$course.' failed');
1036: next;
1037: }
1038: $table .= &Apache::loncommon::start_data_table_row();
1039: $table .=
1040: '<td><span class="LC_nobreak">'.$courseinfo{'description'}.'</span></td>';
1041: $table .=
1042: '<td align="right">'.$data->{'sections'}.'</td>';
1043: $table .=
1044: '<td align="right">'.$data->{'stdno'}.'</td>';
1045: foreach my $item ('avetries','difficulty','disc') {
1046: $table .= '<td align="right">';
1047: if (exists($data->{$item})) {
1048: $table .= sprintf('%.2f',$data->{$item}).' ';
1049: } else {
1050: $table .= '';
1051: }
1052: $table .= '</td>';
1053: }
1054: $table .=
1055: '<td><span class="LC_nobreak">'.
1056: &Apache::lonlocal::locallocaltime($data->{'timestamp'}).
1057: '</span></td>';
1058: $table .= &Apache::loncommon::end_data_table_row().$/;
1059: }
1060: $table .= &Apache::loncommon::end_data_table().$/;
1061: $r->print($table);
1062: } else {
1063: $r->print(&mt('No new dynamic data found.'));
1064: }
1065: } else {
1066: $r->print('<h4>'.
1067: &mt('No Assessment Statistical Data is available for this resource').
1068: '</h4>');
1069: }
1070:
1071: #
1072: #
1073: if (exists($dynmeta{'clear'}) ||
1074: exists($dynmeta{'depth'}) ||
1075: exists($dynmeta{'helpful'}) ||
1076: exists($dynmeta{'correct'}) ||
1077: exists($dynmeta{'technical'})){
1078: $r->print('<h4>'.&mt('Evaluation Data').'</h4>'.
1079: &Apache::lonhtmlcommon::start_pick_box());
1080: foreach my $item ('clear','depth','helpful','correct','technical') {
1081: $r->print(&Apache::lonhtmlcommon::row_title($lt{$item})
1082: .&prettyprint($item,$dynmeta{$item})
1083: .&Apache::lonhtmlcommon::row_closure()
1084: );
1085: }
1086: $r->print(&Apache::lonhtmlcommon::end_pick_box());
1087: } else {
1088: $r->print('<h4>'.&mt('No Evaluation Data is available for this resource.').'</h4>');
1089: }
1090: $uri=~/^\/res\/($match_domain)\/($match_username)\//;
1091: if ((($env{'user.domain'} eq $1) && ($env{'user.name'} eq $2))
1092: || ($env{'user.role.ca./'.$1.'/'.$2})) {
1093: if (exists($dynmeta{'comments'})) {
1094: $r->print('<h4>'.&mt('Evaluation Comments').' ('.
1095: &mt('visible to author and co-authors only').
1096: ')</h4>'.
1097: '<blockquote>'.$dynmeta{'comments'}.'</blockquote>');
1098: } else {
1099: $r->print('<h4>'.&mt('There are no Evaluation Comments on this resource.').'</h4>');
1100: }
1101: my $bombs = &Apache::lonmsg::retrieve_author_res_msg($uri);
1102: if (defined($bombs) && $bombs ne '') {
1103: $r->print('<a name="bombs" /><h4>'.&mt('Error Messages').' ('.
1104: &mt('visible to author and co-authors only').')'.
1105: '</h4>'.$bombs);
1106: } else {
1107: $r->print('<h4>'.&mt('There are currently no Error Messages for this resource.').'</h4>');
1108: }
1109: }
1110: #
1111: # All other stuff
1112: $r->print('<h3>'.
1113: &mt('Additional Metadata (non-standard, parameters, exports)').
1114: '</h3>');
1115: $r->print(&Apache::lonhtmlcommon::start_pick_box());
1116: foreach my $name (sort(keys(%content))) {
1117: if ($name!~/\.display$/) {
1118: my $display=&Apache::lonnet::metadata($uri,
1119: $name.'.display');
1120: if (! $display) {
1121: $display=$name;
1122: };
1123: my $otherinfo='';
1124: foreach my $item ('name','part','type','default') {
1125: if (defined(&Apache::lonnet::metadata($uri,
1126: $name.'.'.$item))) {
1127: $otherinfo.=' '.$item.'='.
1128: &Apache::lonnet::metadata($uri,
1129: $name.'.'.$item).'; ';
1130: }
1131: }
1132: $r->print(&Apache::lonhtmlcommon::row_title($display)
1133: .$content{$name}
1134: );
1135: if ($otherinfo) {
1136: $r->print(' ('.$otherinfo.')');
1137: }
1138: $r->print(&Apache::lonhtmlcommon::row_closure());
1139: }
1140: }
1141: $r->print(&Apache::lonhtmlcommon::end_pick_box());
1142: return;
1143: }
1144:
1145:
1146:
1147: #####################################################
1148: #####################################################
1149: ### ###
1150: ### Editable metadata display ###
1151: ### ###
1152: #####################################################
1153: #####################################################
1154: sub present_editable_metadata {
1155: my ($r,$uri,$file_type) = @_;
1156: # Construction Space Call
1157: # Header
1158: my $disuri=$uri;
1159: my $fn=&Apache::lonnet::filelocation('',$uri);
1160: $disuri=~s{^/\~}{/priv/};
1161: $disuri=~s/\.meta$//;
1162: my $meta_uri = $disuri;
1163: my $path;
1164: if ($disuri =~ m|/portfolio/|) {
1165: ($disuri, $meta_uri, $path) = &portfolio_display_uri($disuri,1);
1166: }
1167: my $target=$uri;
1168: $target=~s{^/\~}{/res/$env{'request.role.domain'}/};
1169: $target=~s/\.meta$//;
1170: my $bombs=&Apache::lonmsg::retrieve_author_res_msg($target);
1171: if ($bombs) {
1172: my $showdel=1;
1173: if ($env{'form.delmsg'}) {
1174: if (&Apache::lonmsg::del_url_author_res_msg($target) eq 'ok') {
1175: $bombs=&mt('Messages deleted.');
1176: $showdel=0;
1177: } else {
1178: $bombs=&mt('Error deleting messages');
1179: }
1180: }
1181: if ($env{'form.clearmsg'}) {
1182: my $cleardir=$target;
1183: $cleardir=~s/\/[^\/]+$/\//;
1184: if (&Apache::lonmsg::clear_author_res_msg($cleardir) eq 'ok') {
1185: $bombs=&mt('Messages cleared.');
1186: $showdel=0;
1187: } else {
1188: $bombs=&mt('Error clearing messages');
1189: }
1190: }
1191: my $del=&mt('Delete Messages for this Resource');
1192: my $clear=&mt('Clear all Messages in Subdirectory');
1193: my $goback=&mt('Back to Source File');
1194: $r->print(<<ENDBOMBS);
1195: <h1>$disuri</h1>
1196: <form method="post" action="" name="defaultmeta">
1197: ENDBOMBS
1198: if ($showdel) {
1199: $r->print(<<ENDDEL);
1200: <input type="submit" name="delmsg" value="$del" />
1201: <input type="submit" name="clearmsg" value="$clear" />
1202: ENDDEL
1203: } else {
1204: $r->print('<p><a href="'.$disuri.'">'.$goback.'</a></p>');
1205: if ($env{'form.clearmsg'}) {
1206: my ($diruri) = ($disuri =~ m{(.*/)[^/]*});
1207: $r->print('<p><a href="'.$diruri.'">'.
1208: &mt('Back To Directory').'</a></p>');
1209: }
1210: }
1211: $r->print('<br />'.$bombs);
1212: } else {
1213: my $displayfile=&mt('Metadata for [_1]',$disuri);
1214: if ($disuri=~/\/default$/) {
1215: my $dir=$disuri;
1216: $dir=~s/default$//;
1217: $displayfile=&mt('Default Metadata for Directory [_1]',$dir);
1218: }
1219: %Apache::lonpublisher::metadatafields=();
1220: %Apache::lonpublisher::metadatakeys=();
1221: my $result=&Apache::lonnet::getfile($fn);
1222: if ($result == -1){
1223: $r->print(&mt('Creating new file [_1]'),$meta_uri);
1224: } else {
1225: &Apache::lonpublisher::metaeval($result);
1226: }
1227: if ($env{'form.new_courserestricted'}) {
1228: my $new_assoc_course = $env{'form.new_courserestricted'};
1229: my $prev_courserestricted = $Apache::lonpublisher::metadatafields{'courserestricted'};
1230: if (($prev_courserestricted) &&
1231: ($prev_courserestricted ne $new_assoc_course)) {
1232: my $transfers = [];
1233: foreach my $key (keys(%env)) {
1234: if ($key =~ /^form\.transfer_(.+)$/) {
1235: push(@{$transfers},$1);
1236: }
1237: }
1238: if (@{$transfers} > 0) {
1239: &store_transferred_addedfields($fn,$uri,$transfers);
1240: }
1241: }
1242: }
1243: $r->print(<<ENDEDIT);
1244: <h1>$displayfile</h1>
1245: <form method="post" action="" name="defaultmeta">
1246: ENDEDIT
1247: my %lt=&fieldnames($file_type);
1248: my $output;
1249: my @fields;
1250: my $added_metadata_fields;
1251: my @added_order;
1252: if ($file_type eq 'groups') {
1253: $Apache::lonpublisher::metadatafields{'courserestricted'}=
1254: 'course.'.$env{'request.course.id'};
1255: }
1256: if ((! $Apache::lonpublisher::metadatafields{'courserestricted'}) &&
1257: (! $env{'form.new_courserestricted'}) && (! $file_type eq 'groups')) {
1258: $Apache::lonpublisher::metadatafields{'courserestricted'}=
1259: 'none';
1260: } elsif ($env{'form.new_courserestricted'}) {
1261: $Apache::lonpublisher::metadatafields{'courserestricted'}=
1262: $env{'form.new_courserestricted'};
1263: }
1264: if ($file_type eq 'portfolio' || $file_type eq 'groups') {
1265: if(exists ($env{$Apache::lonpublisher::metadatafields{'courserestricted'}.'.metadata.fieldlist'})) {
1266: # retrieve fieldnames (in order) from the course restricted list
1267: @fields = (split(/,/,$env{$Apache::lonpublisher::metadatafields{'courserestricted'}.'.metadata.fieldlist'}));
1268: } else {
1269: # no saved field list, use default list
1270: @fields = ('author','title','subject','keywords','abstract',
1271: 'notes','lowestgradelevel',
1272: 'highestgradelevel','standards');
1273: if ($Apache::lonpublisher::metadatafields{'courserestricted'} =~ /^course\.($match_domain\_$match_courseid)$/) {
1274: my $assoc_crs = $1;
1275: $added_metadata_fields = &Apache::lonparmset::get_added_meta_fieldnames($assoc_crs);
1276: if ($env{'course.'.$assoc_crs.'.metadata.addedorder'}) {
1277: @added_order = split(/,/,$env{'course.'.$assoc_crs.'.metadata.addedorder'});
1278: }
1279: $env{$Apache::lonpublisher::metadatafields{'courserestricted'}.'.metadata.fieldlist'} = join(",",@fields);
1280: }
1281: }
1282: } else {
1283: @fields = ('author','title','subject','keywords','abstract','notes',
1284: 'copyright','customdistributionfile','language',
1285: 'standards',
1286: 'lowestgradelevel','highestgradelevel','sourceavail','sourcerights',
1287: 'obsolete','obsoletereplacement');
1288: }
1289: if (! $Apache::lonpublisher::metadatafields{'copyright'}) {
1290: $Apache::lonpublisher::metadatafields{'copyright'}=
1291: 'default';
1292: }
1293: if (($file_type eq 'portfolio') || ($file_type eq 'groups')) {
1294: if (! $Apache::lonpublisher::metadatafields{'mime'}) {
1295: ($Apache::lonpublisher::metadatafields{'mime'}) =
1296: ( $target=~/\.(\w+)$/ );
1297: }
1298: if (! $Apache::lonpublisher::metadatafields{'owner'}) {
1299: $Apache::lonpublisher::metadatafields{'owner'} =
1300: $env{'user.name'}.':'.$env{'user.domain'};
1301: }
1302: if (! $Apache::lonpublisher::metadatafields{'author'}) {
1303: $Apache::lonpublisher::metadatafields{'author'} =
1304: &Apache::loncommon::plainname($env{'user.name'},
1305: $env{'user.domain'});
1306: }
1307: if ($Apache::lonpublisher::metadatafields{'courserestricted'} ne 'none') {
1308:
1309: if ($file_type eq 'portfolio') {
1310: $r->print(&mt('Associated with course [_1]',
1311: '<strong><a href="'.$uri.'?changecourse=true">'.
1312: $env{$Apache::lonpublisher::metadatafields{'courserestricted'}.
1313: ".description"}.
1314: '</a></strong>').'<br />');
1315: } else {
1316: $r->print(&mt('Associated with course [_1]',
1317: '<strong>'.
1318: $env{$Apache::lonpublisher::metadatafields{'courserestricted'}.
1319: ".description"}.'</strong>').'<br />');
1320: }
1321: } else {
1322: $r->print('<a href="'.$uri.'?changecourse=true">'.&mt('This resource is not associated with a course.').'</a><br />');
1323: }
1324: }
1325: if (@added_order) {
1326: foreach my $field_name (@added_order) {
1327: push(@fields,$field_name);
1328: $lt{$field_name} = $$added_metadata_fields{$field_name};
1329: }
1330: } else {
1331: foreach my $field_name (keys(%$added_metadata_fields)) {
1332: push(@fields,$field_name);
1333: $lt{$field_name} = $$added_metadata_fields{$field_name};
1334: }
1335: }
1336: $output .= &Apache::loncommon::start_data_table();
1337: my $row_alt = 1;
1338: foreach my $field_name (@fields) {
1339: if (defined($env{'form.new_'.$field_name})) {
1340: my @values = &Apache::loncommon::get_env_multiple('form.new_'.$field_name);
1341: my $newvalue = '';
1342: foreach my $item (@values) {
1343: if ($item ne '') {
1344: $newvalue .= $item.',';
1345: }
1346: }
1347: $newvalue =~ s/,$//;
1348: $Apache::lonpublisher::metadatafields{$field_name}=$newvalue;
1349: }
1350: if ($Apache::lonpublisher::metadatafields{'courserestricted'} ne 'none'
1351: && exists($env{$Apache::lonpublisher::metadatafields{'courserestricted'}.'.metadata.'.$field_name.'.options'})) {
1352: # handle restrictions here
1353: if ((($env{$Apache::lonpublisher::metadatafields{'courserestricted'}.'.metadata.'.$field_name.'.options'} =~ m/active/) ||
1354: ($field_name eq 'courserestricted'))&&
1355: (!($env{$Apache::lonpublisher::metadatafields{'courserestricted'}.'.metadata.'.$field_name.'.options'} =~ m/deleted/))){
1356:
1357: $output .= "\n".&Apache::loncommon::start_data_table_row();
1358: $output .= ('<td><span class="LC_metadata">'.$lt{$field_name}.':</span></td><td> '.
1359: &prettyinput($field_name,
1360: $Apache::lonpublisher::metadatafields{$field_name},
1361: 'new_'.$field_name,'defaultmeta',
1362: undef,undef,undef,undef,
1363: $Apache::lonpublisher::metadatafields{'courserestricted'}).'</td>');
1364: $output .= &Apache::loncommon::end_data_table_row();
1365: }
1366: } else {
1367:
1368: $output.=(&Apache::loncommon::start_data_table_row().'<td><span class="LC_metadata">'.$lt{$field_name}.':</span></td><td> '.
1369: &prettyinput($field_name,
1370: $Apache::lonpublisher::metadatafields{$field_name},
1371: 'new_'.$field_name,'defaultmeta').'</td>'.&Apache::loncommon::end_data_table_row());
1372:
1373: }
1374: }
1375: $output .= &Apache::loncommon::end_data_table();
1376: if ($env{'form.store'}) {
1377: my ($outcome,$result) = &store_metadata($fn,$uri,'store');
1378: $r->print($result);
1379: }
1380: $r->print($output.'<br /><input type="submit" title="'.&mt('Save Metadata').'" name="store" value="'.
1381: &mt('Save').'" />');
1382:
1383: if ($file_type eq 'portfolio' || $file_type eq 'groups') {
1384: my ($port_path,$group) = &get_port_path_and_group($uri);
1385: if ($group ne '') {
1386: $r->print('<input type="hidden" name="group" value="'.$group.'" />');
1387: }
1388: $r->print('<input type="hidden" name="currentpath" value="'.$env{'form.currentpath'}.'" />');
1389: $r->print('</form><br /><br /><form method="post" action="'.$port_path.'">');
1390: if ($group ne '') {
1391: $r->print('<input type="hidden" name="group" value="'.$group.'" />');
1392: }
1393: $r->print('<input type="hidden" name="currentpath" value="'.$path.'" />'.
1394: '<input type="submit" name="cancel" value="'.&mt('Discard Edits and Return to Portfolio').'" />');
1395: }
1396: }
1397:
1398: $r->print('</form>');
1399:
1400: return;
1401: }
1402:
1403: sub store_metadata {
1404: my ($fn,$uri,$caller) = @_;
1405: my $mfh;
1406: my $formname='store';
1407: my ($file_content,$output,$outcome);
1408: if (&Apache::loncommon::get_env_multiple('form.new_keywords')) {
1409: $Apache::lonpublisher::metadatafields{'keywords'} =
1410: join (',', &Apache::loncommon::get_env_multiple('form.new_keywords'));
1411: }
1412: foreach my $field (sort(keys(%Apache::lonpublisher::metadatafields))) {
1413: next if ($field =~ /\./);
1414: my $unikey=$field;
1415: $unikey=~/^([A-Za-z_]+)/;
1416: my $tag=$1;
1417: $tag=~tr/A-Z/a-z/;
1418: $file_content.= "\n\<$tag";
1419: foreach my $key (split(/\,/,$Apache::lonpublisher::metadatakeys{$unikey})) {
1420: my $value = $Apache::lonpublisher::metadatafields{$unikey.'.'.$key};
1421: $value=~s/\"/\'\'/g;
1422: $file_content.=' '.$key.'="'.$value.'"' ;
1423: }
1424: $file_content.= '>'.
1425: &HTML::Entities::encode
1426: ($Apache::lonpublisher::metadatafields{$unikey},'<>&"').
1427: '</'.$tag.'>';
1428: }
1429: if ($fn =~ m|^$Apache::lonnet::perlvar{'lonDocRoot'}/userfiles|) {
1430: my ($path, $new_fn);
1431: if ($fn =~ m|$match_name/groups/\w+/portfolio/|) {
1432: ($path, $new_fn) = ($fn =~ m|/(groups/\w+/portfolio.*)/([^/]*)$|);
1433: } else {
1434: ($path, $new_fn) = ($fn =~ m|/(portfolio.*)/([^/]*)$|);
1435: }
1436: ($outcome,my $result) =
1437: &store_portfolio_metadata($formname,$file_content,
1438: $path,$new_fn,$uri,$caller);
1439: $output .= $result;
1440: } else {
1441: if (! ($mfh=Apache::File->new('>'.$fn))) {
1442: $output .= '<p><font color="red">';
1443: if ($caller eq 'transfer') {
1444: $output .= &mt('Could not transfer data in added fields to notes');
1445: } else {
1446: $output .= &mt('Could not write metadata');
1447: }
1448: $output .= ', '.&mt('FAIL').'</font></p>';
1449: $outcome = 'fail';
1450: } else {
1451: print $mfh ($file_content);
1452: close($mfh);
1453: &update_metadata_table($uri);
1454: $output .= '<p><font color="blue">';
1455: if ($caller eq 'transfer') {
1456: $output .= &mt('Transferred data in added fields to notes');
1457: } else {
1458: $output .= &mt('Wrote Metadata');
1459: }
1460: $output .= ' '.&Apache::lonlocal::locallocaltime(time).
1461: '</font></p>';
1462: $outcome = 'ok';
1463: }
1464: }
1465: return ($outcome,$output);
1466: }
1467:
1468: sub store_transferred_addedfields {
1469: my ($fn,$uri,$transfers) = @_;
1470: foreach my $item (@{$transfers}) {
1471: $Apache::lonpublisher::metadatafields{'notes'} .=
1472: ' '.$item.' = '.$Apache::lonpublisher::metadatafields{$item};
1473: }
1474: my ($outcome,$output) = &store_metadata($fn,$uri,'transfer');
1475: if ($outcome eq 'ok') {
1476: foreach my $item (@{$transfers}) {
1477: delete($Apache::lonpublisher::metadatafields{$item});
1478: }
1479: }
1480: }
1481:
1482: sub store_portfolio_metadata {
1483: my ($formname,$content,$path,$new_fn,$uri,$caller) = @_;
1484: my ($outcome,$output);
1485: $env{'form.'.$formname}=$content."\n";
1486: $env{'form.'.$formname.'.filename'}=$new_fn;
1487: my $result =&Apache::lonnet::userfileupload($formname,'',$path);
1488: if ($result =~ /(error|notfound)/) {
1489: $output = '<p><font color="red">';
1490: if ($caller eq 'transfer') {
1491: $output .=
1492: &mt('Could not transfer data in added fields to notes');
1493: } else {
1494: $output .= &mt('Could not write metadata');
1495: }
1496: $output .= ', '.&mt('FAIL').'</font></p>';
1497: $outcome = 'fail';
1498: } else {
1499: &update_metadata_table($uri);
1500: $output = '<p><font color="blue">';
1501: if ($caller eq 'transfer') {
1502: $output .= &mt('Transferred data in added fields to notes');
1503: } else {
1504: $output .= &mt('Wrote Metadata');
1505: }
1506: $output .= ' '.&Apache::lonlocal::locallocaltime(time).
1507: '</font></p>';
1508: $outcome = 'ok';
1509: }
1510: return ($outcome,$output);
1511: }
1512:
1513: sub update_metadata_table {
1514: my ($uri) = @_;
1515: my ($type,$udom,$uname,$file_name,$group) =
1516: &Apache::lonnet::parse_portfolio_url($uri);
1517: $file_name =~ s/\.meta$//;
1518: my $current_permissions =
1519: &Apache::lonnet::get_portfile_permissions($udom,$uname);
1520: my %access_controls =
1521: &Apache::lonnet::get_access_controls($current_permissions,$group,
1522: $file_name);
1523: my $access_hash = $access_controls{$file_name};
1524: my $available = 0;
1525: if (ref($access_hash) eq 'HASH') {
1526: foreach my $key (keys(%{$access_hash})) {
1527: my ($num,$scope,$end,$start) =
1528: ($key =~ /^([^:]+):([a-z]+)_(\d*)_?(\d*)$/);
1529: if ($scope eq 'public' || $scope eq 'guest') {
1530: $available = 1;
1531: last;
1532: }
1533: }
1534: }
1535: if ($available) {
1536: my $result =
1537: &Apache::lonnet::update_portfolio_table($uname,$udom,
1538: $file_name,'portfolio_metadata',$group,'update');
1539: }
1540: }
1541:
1542:
1543: 1;
1544: __END__
1545:
1546:
1547: =head1 NAME
1548:
1549: Apache::lonmeta - display meta data
1550:
1551: =head1 SYNOPSIS
1552:
1553: Handler to display meta data
1554:
1555: This is part of the LearningOnline Network with CAPA project
1556: described at http://www.lon-capa.org.
1557:
1558: =head1 SUBROUTINES
1559:
1560: =over
1561:
1562: =item &get_dynamic_metadata_from_sql($url) :
1563:
1564: Queries sql database for dynamic metdata
1565: Returns a hash of hashes, with keys of urls which match $url
1566: Returned fields are given below.
1567:
1568: Examples:
1569:
1570: %DynamicMetadata = &Apache::lonmeta::get_dynmaic_metadata_from_sql
1571: ('/res/msu/korte/');
1572:
1573: $DynamicMetadata{'/res/msu/korte/example.problem'}->{$field}
1574:
1575: =item dynamicmeta()
1576:
1577: Fetch and evaluate dynamic metadata
1578:
1579: =item access_count()
1580:
1581: =item alttag()
1582:
1583: Try to make an alt tag if there is none
1584:
1585: =item authordisplay()
1586:
1587: Author display
1588:
1589: =item evalgraph()
1590:
1591: Pretty display
1592:
1593: =item diffgraph()
1594:
1595: =item fieldnames()
1596:
1597: =item portfolio_linked_path()
1598:
1599: =item get_port_path_and_group()
1600:
1601: =item portfolio_display_uri()
1602:
1603: =item pre_select_course()
1604:
1605: =item select_course()
1606:
1607: =item prettyprint()
1608:
1609: Pretty printing of metadata field
1610:
1611: =item direct()
1612:
1613: Pretty input of metadata field
1614:
1615: =item selectbox()
1616:
1617: =item relatedfield()
1618:
1619: =item prettyinput()
1620:
1621: =item report_bombs()
1622:
1623: =item present_uneditable_metadata()
1624:
1625: =item present_editable_metadata()
1626:
1627: =item store_metadata()
1628:
1629: =item store_transferred_addedfields()
1630:
1631: =item store_portfolio_metadata()
1632:
1633: =item update_metadata_table()
1634:
1635: =back
1636:
1637: =cut
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