File:
[LON-CAPA] /
loncom /
interface /
lonmeta.pm
Revision
1.70:
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Wed Apr 14 20:45:14 2004 UTC (20 years, 2 months ago) by
matthew
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MAIN
CVS tags:
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&print_dynamic_metadata:
Now test to see if we should output some dynamic data before we bother
generating html tables to hold it.
&prettyprint:
Made output for goto_list, comefrom_list, etc, more concise and not use
&lonhtmlcommon::crumbs. Now just use a simple link.
&report_bombs: Use simple link instead of lonhtmlcommon::crumbs.
1: # The LearningOnline Network with CAPA
2: # Metadata display handler
3: #
4: # $Id: lonmeta.pm,v 1.70 2004/04/14 20:45:14 matthew Exp $
5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27:
28:
29: package Apache::lonmeta;
30:
31: use strict;
32: use LONCAPA::lonmetadata();
33: use Apache::Constants qw(:common);
34: use Apache::lonnet();
35: use Apache::loncommon();
36: use Apache::lonhtmlcommon();
37: use Apache::lonmsg;
38: use Apache::lonpublisher;
39: use Apache::lonlocal;
40: use Apache::lonmysql;
41: use Apache::lonmsg;
42:
43:
44: # Fetch and evaluate dynamic metadata
45: sub dynamicmeta {
46: my $url=&Apache::lonnet::declutter(shift);
47: $url=~s/\.meta$//;
48: my ($adomain,$aauthor)=($url=~/^(\w+)\/(\w+)\//);
49: my $regexp=$url;
50: $regexp=~s/(\W)/\\$1/g;
51: $regexp='___'.$regexp.'___';
52: my %evaldata=&Apache::lonnet::dump('nohist_resevaldata',$adomain,
53: $aauthor,$regexp);
54: my %DynamicData = &LONCAPA::lonmetadata::process_reseval_data(\%evaldata);
55: my %Data = &LONCAPA::lonmetadata::process_dynamic_metadata($url,
56: \%DynamicData);
57: #
58: # Deal with 'count' separately
59: $Data{'count'} = &access_count($url,$aauthor,$adomain);
60: #
61: # Debugging code I will probably need later
62: if (0) {
63: &Apache::lonnet::logthis('Dynamic Metadata');
64: while(my($k,$v)=each(%Data)){
65: &Apache::lonnet::logthis(' "'.$k.'"=>"'.$v.'"');
66: }
67: &Apache::lonnet::logthis('-------------------');
68: }
69: return %Data;
70: }
71:
72: sub access_count {
73: my ($src,$author,$adomain) = @_;
74: my %countdata=&Apache::lonnet::dump('nohist_accesscount',$adomain,
75: $author,$src);
76: if (! exists($countdata{$src})) {
77: return &mt('Not Available');
78: } else {
79: return $countdata{$src};
80: }
81: }
82:
83: # Try to make an alt tag if there is none
84: sub alttag {
85: my ($base,$src)=@_;
86: my $fullpath=&Apache::lonnet::hreflocation($base,$src);
87: my $alttag=&Apache::lonnet::metadata($fullpath,'title').' '.
88: &Apache::lonnet::metadata($fullpath,'subject').' '.
89: &Apache::lonnet::metadata($fullpath,'abstract');
90: $alttag=~s/\s+/ /gs;
91: $alttag=~s/\"//gs;
92: $alttag=~s/\'//gs;
93: $alttag=~s/\s+$//gs;
94: $alttag=~s/^\s+//gs;
95: if ($alttag) {
96: return $alttag;
97: } else {
98: return &mt('No information available');
99: }
100: }
101:
102: # Author display
103: sub authordisplay {
104: my ($aname,$adom)=@_;
105: return &Apache::loncommon::aboutmewrapper
106: (&Apache::loncommon::plainname($aname,$adom),
107: $aname,$adom,'preview').' <tt>['.$aname.'@'.$adom.']</tt>';
108: }
109:
110: # Pretty display
111: sub evalgraph {
112: my $value=shift;
113: if (! $value) {
114: return '';
115: }
116: my $val=int($value*10.+0.5)-10;
117: my $output='<table border=0 cellpadding=0 cellspacing=0><tr>';
118: if ($val>=20) {
119: $output.='<td width=20 bgcolor="#555555">  </td>';
120: } else {
121: $output.='<td width='.($val).' bgcolor="#555555"> </td>'.
122: '<td width='.(20-$val).' bgcolor="#FF3333"> </td>';
123: }
124: $output.='<td bgcolor="#FFFF33"> </td>';
125: if ($val>20) {
126: $output.='<td width='.($val-20).' bgcolor="#33FF33"> </td>'.
127: '<td width='.(40-$val).' bgcolor="#555555"> </td>';
128: } else {
129: $output.='<td width=20 bgcolor="#555555">  </td>';
130: }
131: $output.='<td> ('.$value.') </td></tr></table>';
132: return $output;
133: }
134:
135: sub diffgraph {
136: my $value=shift;
137: if (! $value) {
138: return '';
139: }
140: my $val=int(40.0*$value+0.5);
141: my @colors=('#FF9933','#EEAA33','#DDBB33','#CCCC33',
142: '#BBDD33','#CCCC33','#DDBB33','#EEAA33');
143: my $output='<table border=0 cellpadding=0 cellspacing=0><tr>';
144: for (my $i=0;$i<8;$i++) {
145: if ($val>$i*5) {
146: $output.='<td width=5 bgcolor="'.$colors[$i].'"> </td>';
147: } else {
148: $output.='<td width=5 bgcolor="#555555"> </td>';
149: }
150: }
151: $output.='<td> ('.$value.') </td></tr></table>';
152: return $output;
153: }
154:
155:
156: # The field names
157: sub fieldnames {
158: return &Apache::lonlocal::texthash
159: (
160: 'title' => 'Title',
161: 'author' =>'Author(s)',
162: 'authorspace' => 'Author Space',
163: 'modifyinguser' => 'Last Modifying User',
164: 'subject' => 'Subject',
165: 'keywords' => 'Keyword(s)',
166: 'notes' => 'Notes',
167: 'abstract' => 'Abstract',
168: 'lowestgradelevel' => 'Lowest Grade Level',
169: 'highestgradelevel' => 'Highest Grade Level',
170: 'standards' => 'Standards',
171: 'mime' => 'MIME Type',
172: 'language' => 'Language',
173: 'creationdate' => 'Creation Date',
174: 'lastrevisiondate' => 'Last Revision Date',
175: 'owner' => 'Publisher/Owner',
176: 'copyright' => 'Copyright/Distribution',
177: 'customdistributionfile' => 'Custom Distribution File',
178: 'obsolete' => 'Obsolete',
179: 'obsoletereplacement' => 'Suggested Replacement for Obsolete File',
180: 'count' => 'Network-wide number of accesses (hits)',
181: 'course' => 'Network-wide number of courses using resource',
182: 'course_list' => 'Network-wide courses using resource',
183: 'sequsage' => 'Number of resources using or importing resource',
184: 'sequsage_list' => 'Resources using or importing resource',
185: 'goto' => 'Number of resources that follow this resource in maps',
186: 'goto_list' => 'Resources that follow this resource in maps',
187: 'comefrom' => 'Number of resources that lead up to this resource in maps',
188: 'comefrom_list' => 'Resources that lead up to this resource in maps',
189: 'clear' => 'Material presented in clear way',
190: 'depth' => 'Material covered with sufficient depth',
191: 'helpful' => 'Material is helpful',
192: 'correct' => 'Material appears to be correct',
193: 'technical' => 'Resource is technically correct',
194: 'avetries' => 'Average number of tries till solved',
195: 'stdno' => 'Total number of students who have worked on this problem',
196: 'difficulty' => 'Degree of difficulty'
197: );
198: }
199:
200: # Pretty printing of metadata field
201:
202: sub prettyprint {
203: my ($type,$value)=@_;
204: if (! defined($value)) {
205: return ' ';
206: }
207: # Title
208: if ($type eq 'title') {
209: return '<font size="+1" face="arial">'.$value.'</font>';
210: }
211: # Dates
212: if (($type eq 'creationdate') ||
213: ($type eq 'lastrevisiondate')) {
214: return ($value?&Apache::lonlocal::locallocaltime(
215: &Apache::lonmysql::unsqltime($value)):
216: &mt('not available'));
217: }
218: # Language
219: if ($type eq 'language') {
220: return &Apache::loncommon::languagedescription($value);
221: }
222: # Copyright
223: if ($type eq 'copyright') {
224: return &Apache::loncommon::copyrightdescription($value);
225: }
226: # MIME
227: if ($type eq 'mime') {
228: return '<img src="'.&Apache::loncommon::icon($value).'" /> '.
229: &Apache::loncommon::filedescription($value);
230: }
231: # Person
232: if (($type eq 'author') ||
233: ($type eq 'owner') ||
234: ($type eq 'modifyinguser') ||
235: ($type eq 'authorspace')) {
236: $value=~s/(\w+)(\:|\@)(\w+)/&authordisplay($1,$3)/gse;
237: return $value;
238: }
239: # Gradelevel
240: if (($type eq 'lowestgradelevel') ||
241: ($type eq 'highestgradelevel')) {
242: return &Apache::loncommon::gradeleveldescription($value);
243: }
244: # Only for advance users below
245: if (! $ENV{'user.adv'}) {
246: return '<i>- '.&mt('not displayed').' -</i>';
247: }
248: # File
249: if (($type eq 'customdistributionfile') ||
250: ($type eq 'obsoletereplacement') ||
251: ($type eq 'goto_list') ||
252: ($type eq 'comefrom_list') ||
253: ($type eq 'sequsage_list')) {
254: return join('<br />',map {
255: my $url = &Apache::lonnet::clutter($_);
256: $_ = '<b>'.&Apache::lonnet::gettitle($url).'</b> '.
257: '<a href="'.$url.'" target="preview">'.
258: '<font size="-1">'.$url.'</font>'.
259: '</a>'
260: } split(/\s*\,\s*/,$value));
261: }
262: # Evaluations
263: if (($type eq 'clear') ||
264: ($type eq 'depth') ||
265: ($type eq 'helpful') ||
266: ($type eq 'correct') ||
267: ($type eq 'technical')) {
268: return &evalgraph($value);
269: }
270: # Difficulty
271: if ($type eq 'difficulty') {
272: return &diffgraph($value);
273: }
274: # List of courses
275: if ($type=~/\_list/) {
276: return join('<br />',map {
277: my %courseinfo=&Apache::lonnet::coursedescription($_);
278: '<a href="/public/'.
279: $courseinfo{'domain'}.'/'.$courseinfo{'num'}.'/syllabus" target="preview">'.
280: $courseinfo{'description'}.'</a>';
281: } split(/\s*\,\s*/,$value));
282: }
283: # No pretty print found
284: return $value;
285: }
286:
287: # Pretty input of metadata field
288: sub direct {
289: return shift;
290: }
291:
292: sub selectbox {
293: my ($name,$value,$functionref,@idlist)=@_;
294: if (! defined($functionref)) {
295: $functionref=\&direct;
296: }
297: my $selout='<select name="'.$name.'">';
298: foreach (@idlist) {
299: $selout.='<option value=\''.$_.'\'';
300: if ($_ eq $value) {
301: $selout.=' selected>'.&{$functionref}($_).'</option>';
302: }
303: else {$selout.='>'.&{$functionref}($_).'</option>';}
304: }
305: return $selout.'</select>';
306: }
307:
308: sub relatedfield {
309: my ($show,$relatedsearchflag,$relatedsep,$fieldname,$relatedvalue)=@_;
310: if (! $relatedsearchflag) {
311: return '';
312: }
313: if (! defined($relatedsep)) {
314: $relatedsep=' ';
315: }
316: if (! $show) {
317: return $relatedsep.' ';
318: }
319: return $relatedsep.'<input type="checkbox" name="'.$fieldname.'_related"'.
320: ($relatedvalue?' checked="1"':'').' />';
321: }
322:
323: sub prettyinput {
324: my ($type,$value,$fieldname,$formname,
325: $relatedsearchflag,$relatedsep,$relatedvalue)=@_;
326: # Language
327: if ($type eq 'language') {
328: return &selectbox($fieldname,
329: $value,
330: \&Apache::loncommon::languagedescription,
331: (&Apache::loncommon::languageids)).
332: &relatedfield(0,$relatedsearchflag,$relatedsep);
333: }
334: # Copyright
335: if ($type eq 'copyright') {
336: return &selectbox($fieldname,
337: $value,
338: \&Apache::loncommon::copyrightdescription,
339: (&Apache::loncommon::copyrightids)).
340: &relatedfield(0,$relatedsearchflag,$relatedsep);
341: }
342: # Gradelevels
343: if (($type eq 'lowestgradelevel') ||
344: ($type eq 'highestgradelevel')) {
345: return &Apache::loncommon::select_level_form($value,$fieldname).
346: &relatedfield(0,$relatedsearchflag,$relatedsep);
347: }
348: # Obsolete
349: if ($type eq 'obsolete') {
350: return '<input type="checkbox" name="'.$fieldname.'"'.
351: ($value?' checked="1"':'').' />'.
352: &relatedfield(0,$relatedsearchflag,$relatedsep);
353: }
354: # Obsolete replacement file
355: if ($type eq 'obsoletereplacement') {
356: return '<input type="text" name="'.$fieldname.
357: '" size="60" value="'.$value.'" /><a href="javascript:openbrowser'.
358: "('".$formname."','".$fieldname."'".
359: ",'')\">".&mt('Select').'</a>'.
360: &relatedfield(0,$relatedsearchflag,$relatedsep);
361: }
362: # Customdistribution file
363: if ($type eq 'customdistributionfile') {
364: return '<input type="text" name="'.$fieldname.
365: '" size="60" value="'.$value.'" /><a href="javascript:openbrowser'.
366: "('".$formname."','".$fieldname."'".
367: ",'rights')\">".&mt('Select').'</a>'.
368: &relatedfield(0,$relatedsearchflag,$relatedsep);
369: }
370: # Dates
371: if (($type eq 'creationdate') ||
372: ($type eq 'lastrevisiondate')) {
373: return
374: &Apache::lonhtmlcommon::date_setter($formname,$fieldname,$value).
375: &relatedfield(0,$relatedsearchflag,$relatedsep);
376: }
377: # No pretty input found
378: $value=~s/^\s+//gs;
379: $value=~s/\s+$//gs;
380: $value=~s/\s+/ /gs;
381: $value=~s/\"/\&quod\;/gs;
382: return
383: '<input type="text" name="'.$fieldname.'" size="80" '.
384: 'value="'.$value.'" />'.
385: &relatedfield(1,$relatedsearchflag,$relatedsep,$fieldname,
386: $relatedvalue);
387: }
388:
389: # Main Handler
390: sub handler {
391: my $r=shift;
392: #
393: my $uri=$r->uri;
394: #
395: # Check to see if this server is overloaded
396: my $loaderror=&Apache::lonnet::overloaderror($r);
397: if ($loaderror) {
398: return $loaderror;
399: }
400: #
401: # Check to see if original resource server is overloaded
402: my ($resdomain,$resuser)=
403: (&Apache::lonnet::declutter($uri)=~/^(\w+)\/(\w+)\//);
404: $loaderror=&Apache::lonnet::overloaderror
405: ($r,&Apache::lonnet::homeserver($resuser,$resdomain));
406: if ($loaderror) {
407: return $loaderror;
408: }
409: #
410: # Set document type
411: &Apache::loncommon::content_type($r,'text/html');
412: $r->send_http_header;
413: return OK if $r->header_only;
414: #
415: $r->print('<html><head><title>'.
416: 'Catalog Information'.
417: '</title></head>');
418: if ($uri=~m:/adm/bombs/(.*)$:) {
419: $r->print(&Apache::loncommon::bodytag('Error Messages'));
420: # Looking for all bombs?
421: &report_bombs($r,$uri);
422: } elsif ($uri=~/^\/\~/) {
423: # Construction space
424: $r->print(&Apache::loncommon::bodytag
425: ('Edit Catalog Information','','','',$resdomain));
426: &present_editable_metadata($r,$uri);
427: } else {
428: $r->print(&Apache::loncommon::bodytag
429: ('Catalog Information','','','',$resdomain));
430: &present_uneditable_metadata($r,$uri);
431: }
432: $r->print('</body></html>');
433: return OK;
434: }
435:
436: #####################################################
437: #####################################################
438: ### ###
439: ### Report Bombs ###
440: ### ###
441: #####################################################
442: #####################################################
443: sub report_bombs {
444: my ($r,$uri) = @_;
445: # Set document type
446: $uri =~ s:/adm/bombs/::;
447: $uri = &Apache::lonnet::declutter($uri);
448: $r->print('<h1>'.&Apache::lonnet::clutter($uri).'</h1>');
449: my ($domain,$author)=($uri=~/^(\w+)\/(\w+)\//);
450: if (&Apache::loncacc::constructaccess('/~'.$author.'/',$domain)) {
451: my %brokenurls =
452: &Apache::lonmsg::all_url_author_res_msg($author,$domain);
453: foreach (sort(keys(%brokenurls))) {
454: if ($_=~/^\Q$uri\E/) {
455: $r->print
456: ('<a href="'.&Apache::lonnet::clutter($_).'">'.$_.'</a>'.
457: &Apache::lonmsg::retrieve_author_res_msg($_).
458: '<hr />');
459: }
460: }
461: } else {
462: $r->print(&mt('Not authorized'));
463: }
464: return;
465: }
466:
467: #####################################################
468: #####################################################
469: ### ###
470: ### Uneditable Metadata Display ###
471: ### ###
472: #####################################################
473: #####################################################
474: sub present_uneditable_metadata {
475: my ($r,$uri) = @_;
476: #
477: my %content=();
478: # Read file
479: foreach (split(/\,/,&Apache::lonnet::metadata($uri,'keys'))) {
480: $content{$_}=&Apache::lonnet::metadata($uri,$_);
481: }
482: # Render Output
483: # displayed url
484: my ($thisversion)=($uri=~/\.(\d+)\.(\w+)\.meta$/);
485: $uri=~s/\.meta$//;
486: my $disuri=&Apache::lonnet::clutter($uri);
487: # version
488: my $currentversion=&Apache::lonnet::getversion($disuri);
489: my $versiondisplay='';
490: if ($thisversion) {
491: $versiondisplay=&mt('Version').': '.$thisversion.
492: ' ('.&mt('most recent version').': '.
493: ($currentversion>0 ?
494: $currentversion :
495: &mt('information not available')).')';
496: } else {
497: $versiondisplay='Version: '.$currentversion;
498: }
499: # crumbify displayed URL
500: $disuri=&Apache::lonhtmlcommon::crumbs($disuri);
501: # obsolete
502: my $obsolete=$content{'obsolete'};
503: my $obsoletewarning='';
504: if (($obsolete) && ($ENV{'user.adv'})) {
505: $obsoletewarning='<p><font color="red">'.
506: &mt('This resource has been marked obsolete by the author(s)').
507: '</font></p>';
508: }
509: #
510: my %lt=&fieldnames();
511: my $table='';
512: foreach ('title',
513: 'author',
514: 'subject',
515: 'keywords',
516: 'notes',
517: 'abstract',
518: 'lowestgradelevel',
519: 'highestgradelevel',
520: 'standards',
521: 'mime',
522: 'language',
523: 'creationdate',
524: 'lastrevisiondate',
525: 'owner',
526: 'copyright',
527: 'customdistributionfile',
528: 'obsolete',
529: 'obsoletereplacement') {
530: $table.='<tr><td bgcolor="#AAAAAA">'.$lt{$_}.
531: '</td><td bgcolor="#CCCCCC">'.
532: &prettyprint($_,$content{$_}).'</td></tr>';
533: delete $content{$_};
534: }
535: #
536: $r->print(<<ENDHEAD);
537: <h2>$content{'title'}</h2>
538: <h3><tt>$disuri</tt></h3>
539: $obsoletewarning
540: $versiondisplay<br />
541: <table cellspacing=2 border=0>
542: $table
543: </table>
544: ENDHEAD
545: if ($ENV{'user.adv'}) {
546: &print_dynamic_metadata($r,$uri,\%content);
547: }
548: return;
549: }
550:
551: sub print_dynamic_metadata {
552: my ($r,$uri,$content) = @_;
553: #
554: my %content = %$content;
555: my %lt=&fieldnames();
556: #
557: my $description = 'Dynamic Metadata (updated periodically)';
558: $r->print('<h3>'.&mt($description).'</h3>'.
559: &mt('Processing'));
560: $r->rflush();
561: my %items=&fieldnames();
562: my %dynmeta=&dynamicmeta($uri);
563: #
564: # General Access and Usage Statistics
565: if (exists($dynmeta{'count'}) ||
566: exists($dynmeta{'sequsage'}) ||
567: exists($dynmeta{'comefrom'}) ||
568: exists($dynmeta{'goto'}) ||
569: exists($dynmeta{'course'})) {
570: $r->print('<h4>'.&mt('Access and Usage Statistics').'</h4>'.
571: '<table cellspacing=2 border=0>');
572: foreach ('count',
573: 'sequsage','sequsage_list',
574: 'comefrom','comefrom_list',
575: 'goto','goto_list',
576: 'course','course_list') {
577: $r->print('<tr><td bgcolor="#AAAAAA">'.$lt{$_}.'</td>'.
578: '<td bgcolor="#CCCCCC">'.
579: &prettyprint($_,$dynmeta{$_})."</td></tr>\n");
580: }
581: $r->print('</table>');
582: } else {
583: $r->print('<h4>'.&mt('No Access or Usages Statistics are available for this resource.').'</h4>');
584: }
585: #
586: # Assessment statistics
587: if ($uri=~/\.(problem|exam|quiz|assess|survey|form)$/ &&
588: (exists($dynmeta{'stdno'}) ||
589: exists($dynmeta{'avetries'}) ||
590: exists($dynmeta{'difficulty'}))) {
591: # This is an assessment, print assessment data
592: $r->print(
593: '<h4>'.&mt('Assessment Statistical Data').'</h4>'.
594: '<table cellspacing=2 border=0>');
595: foreach ('stdno','avetries','difficulty') {
596: $r->print('<tr><td bgcolor="#AAAAAA">'.$lt{$_}.'</td>'.
597: '<td bgcolor="#CCCCCC">'.
598: &prettyprint($_,$dynmeta{$_})."</td></tr>\n");
599: }
600: $r->print('</table>');
601: } else {
602: $r->print('<h4>'.&mt('No Assessment Statistical Data is available for this resource').'</h4>');
603: }
604: if (exists($dynmeta{'clear'}) ||
605: exists($dynmeta{'depth'}) ||
606: exists($dynmeta{'helpful'}) ||
607: exists($dynmeta{'correct'}) ||
608: exists($dynmeta{'technical'})){
609: $r->print('<h4>'.&mt('Evaluation Data').'</h4>'.
610: '<table cellspacing=2 border=0>');
611: foreach ('clear','depth','helpful','correct','technical') {
612: $r->print('<tr><td bgcolor="#AAAAAA">'.$lt{$_}.'</td>'.
613: '<td bgcolor="#CCCCCC">'.
614: &prettyprint($_,$dynmeta{$_})."</td></tr>\n");
615: }
616: $r->print('</table>');
617: } else {
618: $r->print('<h4>'.&mt('No Evaluation Data is available for this resource.').'</h4>');
619: }
620: $uri=~/^\/res\/(\w+)\/(\w+)\//;
621: if ((($ENV{'user.domain'} eq $1) && ($ENV{'user.name'} eq $2))
622: || ($ENV{'user.role.ca./'.$1.'/'.$2})) {
623: if (exists($dynmeta{'comments'})) {
624: $r->print('<h4>'.&mt('Evaluation Comments').' ('.
625: &mt('visible to author and co-authors only').
626: ')</h4>'.
627: '<blockquote>'.$dynmeta{'comments'}.'</blockquote>');
628: } else {
629: $r->print('<h4>'.&mt('There are no Evaluation Comments on this resource.').'</h4>');
630: }
631: my $bombs = &Apache::lonmsg::retrieve_author_res_msg($uri);
632: if (defined($bombs) && $bombs ne '') {
633: $r->print('<a name="bombs" /><h4>'.&mt('Error Messages').' ('.
634: &mt('visible to author and co-authors only').')'.
635: '</h4>'.$bombs);
636: } else {
637: $r->print('<h4>'.&mt('There are currently no Error Messages for this resource.').'</h4>');
638: }
639: }
640: #
641: # All other stuff
642: $r->print('<h3>'.
643: &mt('Additional Metadata (non-standard, parameters, exports)').
644: '</h3>');
645: foreach (sort(keys(%content))) {
646: my $name=$_;
647: if ($name!~/\.display$/) {
648: my $display=&Apache::lonnet::metadata($uri,
649: $name.'.display');
650: if (! $display) {
651: $display=$name;
652: };
653: my $otherinfo='';
654: foreach ('name','part','type','default') {
655: if (defined(&Apache::lonnet::metadata($uri,
656: $name.'.'.$_))) {
657: $otherinfo.=' '.$_.'='.
658: &Apache::lonnet::metadata($uri,
659: $name.'.'.$_).'; ';
660: }
661: }
662: $r->print('<b>'.$display.':</b> '.$content{$name});
663: if ($otherinfo) {
664: $r->print(' ('.$otherinfo.')');
665: }
666: $r->print("<br />\n");
667: }
668: }
669: return;
670: }
671:
672: #####################################################
673: #####################################################
674: ### ###
675: ### Editable metadata display ###
676: ### ###
677: #####################################################
678: #####################################################
679: sub present_editable_metadata {
680: my ($r,$uri) = @_;
681: # Construction Space Call
682: # Header
683: my $disuri=$uri;
684: my $fn=&Apache::lonnet::filelocation('',$uri);
685: $disuri=~s/^\/\~/\/priv\//;
686: $disuri=~s/\.meta$//;
687: my $target=$uri;
688: $target=~s/^\/\~/\/res\/$ENV{'request.role.domain'}\//;
689: $target=~s/\.meta$//;
690: my $bombs=&Apache::lonmsg::retrieve_author_res_msg($target);
691: if ($bombs) {
692: if ($ENV{'form.delmsg'}) {
693: if (&Apache::lonmsg::del_url_author_res_msg($target) eq 'ok') {
694: $bombs=&mt('Messages deleted.');
695: } else {
696: $bombs=&mt('Error deleting messages');
697: }
698: }
699: my $del=&mt('Delete Messages');
700: $r->print(<<ENDBOMBS);
701: <h1>$disuri</h1>
702: <form method="post" name="defaultmeta">
703: <input type="submit" name="delmsg" value="$del" />
704: <br />$bombs
705: ENDBOMBS
706: } else {
707: my $displayfile='Catalog Information for '.$disuri;
708: if ($disuri=~/\/default$/) {
709: my $dir=$disuri;
710: $dir=~s/default$//;
711: $displayfile=
712: &mt('Default Cataloging Information for Directory').' '.
713: $dir;
714: }
715: my $bodytag=
716: &Apache::loncommon::bodytag('Edit Catalog Information');
717: %Apache::lonpublisher::metadatafields=();
718: %Apache::lonpublisher::metadatakeys=();
719: &Apache::lonpublisher::metaeval(&Apache::lonnet::getfile($fn));
720: $r->print(<<ENDEDIT);
721: <html><head><title>Edit Catalog Information</title></head>
722: $bodytag
723: <h1>$displayfile</h1>
724: <form method="post" name="defaultmeta">
725: ENDEDIT
726: $r->print('<script language="JavaScript">'.
727: &Apache::loncommon::browser_and_searcher_javascript.
728: '</script>');
729: my %lt=&fieldnames();
730: foreach ('author','title','subject','keywords','abstract','notes',
731: 'copyright','customdistributionfile','language',
732: 'standards',
733: 'lowestgradelevel','highestgradelevel',
734: 'obsolete','obsoletereplacement') {
735: if (defined($ENV{'form.new_'.$_})) {
736: $Apache::lonpublisher::metadatafields{$_}=
737: $ENV{'form.new_'.$_};
738: }
739: if (! $Apache::lonpublisher::metadatafields{'copyright'}) {
740: $Apache::lonpublisher::metadatafields{'copyright'}=
741: 'default';
742: }
743: $r->print('<p>'.$lt{$_}.': '.
744: &prettyinput
745: ($_,$Apache::lonpublisher::metadatafields{$_},
746: 'new_'.$_,'defaultmeta').'</p>');
747: }
748: if ($ENV{'form.store'}) {
749: my $mfh;
750: if (! ($mfh=Apache::File->new('>'.$fn))) {
751: $r->print('<p><font color=red>'.
752: &mt('Could not write metadata').', '.
753: &mt('FAIL').'</font>');
754: } else {
755: foreach (sort keys %Apache::lonpublisher::metadatafields) {
756: next if ($_ =~ /\./);
757: my $unikey=$_;
758: $unikey=~/^([A-Za-z]+)/;
759: my $tag=$1;
760: $tag=~tr/A-Z/a-z/;
761: print $mfh "\n\<$tag";
762: foreach (split(/\,/,
763: $Apache::lonpublisher::metadatakeys{$unikey})
764: ) {
765: my $value=
766: $Apache::lonpublisher::metadatafields{$unikey.'.'.$_};
767: $value=~s/\"/\'\'/g;
768: print $mfh ' '.$_.'="'.$value.'"';
769: }
770: print $mfh '>'.
771: &HTML::Entities::encode
772: ($Apache::lonpublisher::metadatafields{$unikey},
773: '<>&"').
774: '</'.$tag.'>';
775: }
776: $r->print('<p>'.&mt('Wrote Metadata'));
777: }
778: }
779: $r->print('<br /><input type="submit" name="store" value="'.
780: &mt('Store Catalog Information').'">');
781: }
782: $r->print('</form>');
783: return;
784: }
785:
786: 1;
787: __END__
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