1: # The LearningOnline Network with CAPA
2: # Metadata display handler
3: #
4: # $Id: lonmeta.pm,v 1.98 2005/07/08 10:39:49 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:
43:
44: ############################################################
45: ############################################################
46: ##
47: ## &get_dynamic_metadata_from_sql($url)
48: ##
49: ## Queries sql database for dynamic metdata
50: ## Returns a hash of hashes, with keys of urls which match $url
51: ## Returned fields are given below.
52: ##
53: ## Examples:
54: ##
55: ## %DynamicMetadata = &Apache::lonmeta::get_dynmaic_metadata_from_sql
56: ## ('/res/msu/korte/');
57: ##
58: ## $DynamicMetadata{'/res/msu/korte/example.problem'}->{$field}
59: ##
60: ############################################################
61: ############################################################
62: sub get_dynamic_metadata_from_sql {
63: my ($url) = shift();
64: my ($authordom,$author)=($url=~m:^/res/(\w+)/(\w+)/:);
65: if (! defined($authordom)) {
66: $authordom = shift();
67: }
68: if (! defined($author)) {
69: $author = shift();
70: }
71: if (! defined($authordom) || ! defined($author)) {
72: return ();
73: }
74: my @Fields = ('url','count','course',
75: 'goto','goto_list',
76: 'comefrom','comefrom_list',
77: 'sequsage','sequsage_list',
78: 'stdno','stdno_list',
79: 'dependencies',
80: 'avetries','avetries_list',
81: 'difficulty','difficulty_list',
82: 'disc','disc_list',
83: 'clear','technical','correct',
84: 'helpful','depth');
85: #
86: my $query = 'SELECT '.join(',',@Fields).
87: ' FROM metadata WHERE url LIKE "'.$url.'%"';
88: my $server = &Apache::lonnet::homeserver($author,$authordom);
89: my $reply = &Apache::lonnet::metadata_query($query,undef,undef,
90: ,[$server]);
91: return () if (! defined($reply) || ref($reply) ne 'HASH');
92: my $filename = $reply->{$server};
93: if (! defined($filename) || $filename =~ /^error/) {
94: return ();
95: }
96: my $max_time = time + 10; # wait 10 seconds for results at most
97: my %ReturnHash;
98: #
99: # Look for results
100: my $finished = 0;
101: while (! $finished && time < $max_time) {
102: my $datafile=$Apache::lonnet::perlvar{'lonDaemons'}.'/tmp/'.$filename;
103: if (! -e "$datafile.end") { next; }
104: my $fh;
105: if (!($fh=Apache::File->new($datafile))) { next; }
106: while (my $result = <$fh>) {
107: chomp($result);
108: next if (! $result);
109: my @Data =
110: map {
111: &Apache::lonnet::unescape($_);
112: } split(',',$result);
113: my $url = $Data[0];
114: for (my $i=0;$i<=$#Fields;$i++) {
115: $ReturnHash{$url}->{$Fields[$i]}=$Data[$i];
116: }
117: }
118: $finished = 1;
119: }
120: #
121: return %ReturnHash;
122: }
123:
124:
125: # Fetch and evaluate dynamic metadata
126: sub dynamicmeta {
127: my $url=&Apache::lonnet::declutter(shift);
128: $url=~s/\.meta$//;
129: my ($adomain,$aauthor)=($url=~/^(\w+)\/(\w+)\//);
130: my $regexp=$url;
131: $regexp=~s/(\W)/\\$1/g;
132: $regexp='___'.$regexp.'___';
133: my %evaldata=&Apache::lonnet::dump('nohist_resevaldata',$adomain,
134: $aauthor,$regexp);
135: my %DynamicData = &LONCAPA::lonmetadata::process_reseval_data(\%evaldata);
136: my %Data = &LONCAPA::lonmetadata::process_dynamic_metadata($url,
137: \%DynamicData);
138: #
139: # Deal with 'count' separately
140: $Data{'count'} = &access_count($url,$aauthor,$adomain);
141: #
142: # Debugging code I will probably need later
143: if (0) {
144: &Apache::lonnet::logthis('Dynamic Metadata');
145: while(my($k,$v)=each(%Data)){
146: &Apache::lonnet::logthis(' "'.$k.'"=>"'.$v.'"');
147: }
148: &Apache::lonnet::logthis('-------------------');
149: }
150: return %Data;
151: }
152:
153: sub access_count {
154: my ($src,$author,$adomain) = @_;
155: my %countdata=&Apache::lonnet::dump('nohist_accesscount',$adomain,
156: $author,$src);
157: if (! exists($countdata{$src})) {
158: return &mt('Not Available');
159: } else {
160: return $countdata{$src};
161: }
162: }
163:
164: # Try to make an alt tag if there is none
165: sub alttag {
166: my ($base,$src)=@_;
167: my $fullpath=&Apache::lonnet::hreflocation($base,$src);
168: my $alttag=&Apache::lonnet::metadata($fullpath,'title').' '.
169: &Apache::lonnet::metadata($fullpath,'subject').' '.
170: &Apache::lonnet::metadata($fullpath,'abstract');
171: $alttag=~s/\s+/ /gs;
172: $alttag=~s/\"//gs;
173: $alttag=~s/\'//gs;
174: $alttag=~s/\s+$//gs;
175: $alttag=~s/^\s+//gs;
176: if ($alttag) {
177: return $alttag;
178: } else {
179: return &mt('No information available');
180: }
181: }
182:
183: # Author display
184: sub authordisplay {
185: my ($aname,$adom)=@_;
186: return &Apache::loncommon::aboutmewrapper
187: (&Apache::loncommon::plainname($aname,$adom),
188: $aname,$adom,'preview').' <tt>['.$aname.'@'.$adom.']</tt>';
189: }
190:
191: # Pretty display
192: sub evalgraph {
193: my $value=shift;
194: if (! $value) {
195: return '';
196: }
197: my $val=int($value*10.+0.5)-10;
198: my $output='<table border="0" cellpadding="0" cellspacing="0"><tr>';
199: if ($val>=20) {
200: $output.='<td width="20" bgcolor="#555555">  </td>';
201: } else {
202: $output.='<td width="'.($val).'" bgcolor="#555555"> </td>'.
203: '<td width="'.(20-$val).'" bgcolor="#FF3333"> </td>';
204: }
205: $output.='<td bgcolor="#FFFF33"> </td>';
206: if ($val>20) {
207: $output.='<td width="'.($val-20).'" bgcolor="#33FF33"> </td>'.
208: '<td width="'.(40-$val).'" bgcolor="#555555"> </td>';
209: } else {
210: $output.='<td width="20" bgcolor="#555555">  </td>';
211: }
212: $output.='<td> ('.sprintf("%5.2f",$value).') </td></tr></table>';
213: return $output;
214: }
215:
216: sub diffgraph {
217: my $value=shift;
218: if (! $value) {
219: return '';
220: }
221: my $val=int(40.0*$value+0.5);
222: my @colors=('#FF9933','#EEAA33','#DDBB33','#CCCC33',
223: '#BBDD33','#CCCC33','#DDBB33','#EEAA33');
224: my $output='<table border="0" cellpadding="0" cellspacing="0"><tr>';
225: for (my $i=0;$i<8;$i++) {
226: if ($val>$i*5) {
227: $output.='<td width="5" bgcolor="'.$colors[$i].'"> </td>';
228: } else {
229: $output.='<td width="5" bgcolor="#555555"> </td>';
230: }
231: }
232: $output.='<td> ('.sprintf("%3.2f",$value).') </td></tr></table>';
233: return $output;
234: }
235:
236:
237: # The field names
238: sub fieldnames {
239: my $file_type=shift;
240: my %fields =
241: ('title' => 'Title',
242: 'author' =>'Author(s)',
243: 'authorspace' => 'Author Space',
244: 'modifyinguser' => 'Last Modifying User',
245: 'subject' => 'Subject',
246: 'keywords' => 'Keyword(s)',
247: 'notes' => 'Notes',
248: 'abstract' => 'Abstract',
249: 'lowestgradelevel' => 'Lowest Grade Level',
250: 'highestgradelevel' => 'Highest Grade Level');
251: if (! defined($file_type) || $file_type ne 'portfolio') {
252: %fields =
253: (%fields,
254: 'domain' => 'Domain',
255: 'standards' => 'Standards',
256: 'mime' => 'MIME Type',
257: 'language' => 'Language',
258: 'creationdate' => 'Creation Date',
259: 'lastrevisiondate' => 'Last Revision Date',
260: 'owner' => 'Publisher/Owner',
261: 'copyright' => 'Copyright/Distribution',
262: 'customdistributionfile' => 'Custom Distribution File',
263: 'sourceavail' => 'Source Available',
264: 'sourcerights' => 'Source Custom Distribution File',
265: 'obsolete' => 'Obsolete',
266: 'obsoletereplacement' => 'Suggested Replacement for Obsolete File',
267: 'count' => 'Network-wide number of accesses (hits)',
268: 'course' => 'Network-wide number of courses using resource',
269: 'course_list' => 'Network-wide courses using resource',
270: 'sequsage' => 'Number of resources using or importing resource',
271: 'sequsage_list' => 'Resources using or importing resource',
272: 'goto' => 'Number of resources that follow this resource in maps',
273: 'goto_list' => 'Resources that follow this resource in maps',
274: 'comefrom' => 'Number of resources that lead up to this resource in maps',
275: 'comefrom_list' => 'Resources that lead up to this resource in maps',
276: 'clear' => 'Material presented in clear way',
277: 'depth' => 'Material covered with sufficient depth',
278: 'helpful' => 'Material is helpful',
279: 'correct' => 'Material appears to be correct',
280: 'technical' => 'Resource is technically correct',
281: 'avetries' => 'Average number of tries till solved',
282: 'stdno' => 'Total number of students who have worked on this problem',
283: 'difficulty' => 'Degree of difficulty',
284: 'disc' => 'Degree of discrimination',
285: 'dependencies' => 'Resources used by this resource',
286: );
287: }
288: return &Apache::lonlocal::texthash(%fields);
289: }
290:
291: # Pretty printing of metadata field
292:
293: sub prettyprint {
294: my ($type,$value,$target,$prefix,$form,$noformat)=@_;
295: # $target,$prefix,$form are optional and for filecrumbs only
296: if (! defined($value)) {
297: return ' ';
298: }
299: # Title
300: if ($type eq 'title') {
301: return '<font size="+1" face="arial">'.$value.'</font>';
302: }
303: # Dates
304: if (($type eq 'creationdate') ||
305: ($type eq 'lastrevisiondate')) {
306: return ($value?&Apache::lonlocal::locallocaltime(
307: &Apache::lonmysql::unsqltime($value)):
308: &mt('not available'));
309: }
310: # Language
311: if ($type eq 'language') {
312: return &Apache::loncommon::languagedescription($value);
313: }
314: # Copyright
315: if ($type eq 'copyright') {
316: return &Apache::loncommon::copyrightdescription($value);
317: }
318: # Copyright
319: if ($type eq 'sourceavail') {
320: return &Apache::loncommon::source_copyrightdescription($value);
321: }
322: # MIME
323: if ($type eq 'mime') {
324: return '<img src="'.&Apache::loncommon::icon($value).'" /> '.
325: &Apache::loncommon::filedescription($value);
326: }
327: # Person
328: if (($type eq 'author') ||
329: ($type eq 'owner') ||
330: ($type eq 'modifyinguser') ||
331: ($type eq 'authorspace')) {
332: $value=~s/(\w+)(\:|\@)(\w+)/&authordisplay($1,$3)/gse;
333: return $value;
334: }
335: # Gradelevel
336: if (($type eq 'lowestgradelevel') ||
337: ($type eq 'highestgradelevel')) {
338: return &Apache::loncommon::gradeleveldescription($value);
339: }
340: # Only for advance users below
341: if (! $env{'user.adv'}) {
342: return '<i>- '.&mt('not displayed').' -</i>';
343: }
344: # File
345: if (($type eq 'customdistributionfile') ||
346: ($type eq 'obsoletereplacement') ||
347: ($type eq 'goto_list') ||
348: ($type eq 'comefrom_list') ||
349: ($type eq 'sequsage_list') ||
350: ($type eq 'dependencies')) {
351: return '<ul><font size="-1">'.join("\n",map {
352: my $url = &Apache::lonnet::clutter($_);
353: my $title = &Apache::lonnet::gettitle($url);
354: if ($title eq '') {
355: $title = 'Untitled';
356: if ($url =~ /\.sequence$/) {
357: $title .= ' Sequence';
358: } elsif ($url =~ /\.page$/) {
359: $title .= ' Page';
360: } elsif ($url =~ /\.problem$/) {
361: $title .= ' Problem';
362: } elsif ($url =~ /\.html$/) {
363: $title .= ' HTML document';
364: } elsif ($url =~ m:/syllabus$:) {
365: $title .= ' Syllabus';
366: }
367: }
368: $_ = '<li>'.$title.' '.
369: &Apache::lonhtmlcommon::crumbs($url,$target,$prefix,$form,'-1',$noformat).
370: '</li>'
371: } split(/\s*\,\s*/,$value)).'</ul></font>';
372: }
373: # Evaluations
374: if (($type eq 'clear') ||
375: ($type eq 'depth') ||
376: ($type eq 'helpful') ||
377: ($type eq 'correct') ||
378: ($type eq 'technical')) {
379: return &evalgraph($value);
380: }
381: # Difficulty
382: if ($type eq 'difficulty' || $type eq 'disc') {
383: return &diffgraph($value);
384: }
385: # List of courses
386: if ($type=~/\_list/) {
387: my @Courses = split(/\s*\,\s*/,$value);
388: my $Str;
389: foreach my $course (@Courses) {
390: my %courseinfo = &Apache::lonnet::coursedescription($course);
391: if (! exists($courseinfo{'num'}) || $courseinfo{'num'} eq '') {
392: next;
393: }
394: if ($Str ne '') { $Str .= '<br />'; }
395: $Str .= '<a href="/public/'.$courseinfo{'domain'}.'/'.
396: $courseinfo{'num'}.'/syllabus" target="preview">'.
397: $courseinfo{'description'}.'</a>';
398: }
399: return $Str;
400: }
401: # No pretty print found
402: return $value;
403: }
404:
405: # Pretty input of metadata field
406: sub direct {
407: return shift;
408: }
409:
410: sub selectbox {
411: my ($name,$value,$functionref,@idlist)=@_;
412: if (! defined($functionref)) {
413: $functionref=\&direct;
414: }
415: my $selout='<select name="'.$name.'">';
416: foreach (@idlist) {
417: $selout.='<option value=\''.$_.'\'';
418: if ($_ eq $value) {
419: $selout.=' selected>'.&{$functionref}($_).'</option>';
420: }
421: else {$selout.='>'.&{$functionref}($_).'</option>';}
422: }
423: return $selout.'</select>';
424: }
425:
426: sub relatedfield {
427: my ($show,$relatedsearchflag,$relatedsep,$fieldname,$relatedvalue)=@_;
428: if (! $relatedsearchflag) {
429: return '';
430: }
431: if (! defined($relatedsep)) {
432: $relatedsep=' ';
433: }
434: if (! $show) {
435: return $relatedsep.' ';
436: }
437: return $relatedsep.'<input type="checkbox" name="'.$fieldname.'_related"'.
438: ($relatedvalue?' checked="1"':'').' />';
439: }
440:
441: sub prettyinput {
442: my ($type,$value,$fieldname,$formname,
443: $relatedsearchflag,$relatedsep,$relatedvalue,$size)=@_;
444: if (! defined($size)) {
445: $size = 80;
446: }
447: # Language
448: if ($type eq 'language') {
449: return &selectbox($fieldname,
450: $value,
451: \&Apache::loncommon::languagedescription,
452: (&Apache::loncommon::languageids)).
453: &relatedfield(0,$relatedsearchflag,$relatedsep);
454: }
455: # Copyright
456: if ($type eq 'copyright') {
457: return &selectbox($fieldname,
458: $value,
459: \&Apache::loncommon::copyrightdescription,
460: (&Apache::loncommon::copyrightids)).
461: &relatedfield(0,$relatedsearchflag,$relatedsep);
462: }
463: # Source Copyright
464: if ($type eq 'sourceavail') {
465: return &selectbox($fieldname,
466: $value,
467: \&Apache::loncommon::source_copyrightdescription,
468: (&Apache::loncommon::source_copyrightids)).
469: &relatedfield(0,$relatedsearchflag,$relatedsep);
470: }
471: # Gradelevels
472: if (($type eq 'lowestgradelevel') ||
473: ($type eq 'highestgradelevel')) {
474: return &Apache::loncommon::select_level_form($value,$fieldname).
475: &relatedfield(0,$relatedsearchflag,$relatedsep);
476: }
477: # Obsolete
478: if ($type eq 'obsolete') {
479: return '<input type="checkbox" name="'.$fieldname.'"'.
480: ($value?' checked="1"':'').' />'.
481: &relatedfield(0,$relatedsearchflag,$relatedsep);
482: }
483: # Obsolete replacement file
484: if ($type eq 'obsoletereplacement') {
485: return '<input type="text" name="'.$fieldname.
486: '" size="60" value="'.$value.'" /><a href="javascript:openbrowser'.
487: "('".$formname."','".$fieldname."'".
488: ",'')\">".&mt('Select').'</a>'.
489: &relatedfield(0,$relatedsearchflag,$relatedsep);
490: }
491: # Customdistribution file
492: if ($type eq 'customdistributionfile') {
493: return '<input type="text" name="'.$fieldname.
494: '" size="60" value="'.$value.'" /><a href="javascript:openbrowser'.
495: "('".$formname."','".$fieldname."'".
496: ",'rights')\">".&mt('Select').'</a>'.
497: &relatedfield(0,$relatedsearchflag,$relatedsep);
498: }
499: # Source Customdistribution file
500: if ($type eq 'sourcerights') {
501: return '<input type="text" name="'.$fieldname.
502: '" size="60" value="'.$value.'" /><a href="javascript:openbrowser'.
503: "('".$formname."','".$fieldname."'".
504: ",'rights')\">".&mt('Select').'</a>'.
505: &relatedfield(0,$relatedsearchflag,$relatedsep);
506: }
507: # Dates
508: if (($type eq 'creationdate') ||
509: ($type eq 'lastrevisiondate')) {
510: return
511: &Apache::lonhtmlcommon::date_setter($formname,$fieldname,$value).
512: &relatedfield(0,$relatedsearchflag,$relatedsep);
513: }
514: # No pretty input found
515: $value=~s/^\s+//gs;
516: $value=~s/\s+$//gs;
517: $value=~s/\s+/ /gs;
518: $value=~s/\"/\"\;/gs;
519: return
520: '<input type="text" name="'.$fieldname.'" size="'.$size.'" '.
521: 'value="'.$value.'" />'.
522: &relatedfield(1,$relatedsearchflag,$relatedsep,$fieldname,
523: $relatedvalue);
524: }
525:
526: # Main Handler
527: sub handler {
528: my $r=shift;
529: #
530: my $uri=$r->uri;
531: #
532: # Set document type
533: &Apache::loncommon::content_type($r,'text/html');
534: $r->send_http_header;
535: return OK if $r->header_only;
536: #
537: my ($resdomain,$resuser)=
538: (&Apache::lonnet::declutter($uri)=~/^(\w+)\/(\w+)\//);
539: my $html=&Apache::lonxml::xmlbegin();
540: $r->print($html.'<head><title>'.
541: 'Catalog Information'.
542: '</title></head>');
543: if ($uri=~m:/adm/bombs/(.*)$:) {
544: $r->print(&Apache::loncommon::bodytag('Error Messages'));
545: # Looking for all bombs?
546: &report_bombs($r,$uri);
547: } elsif ($uri=~/\/portfolio\//) {
548: $r->print(&Apache::loncommon::bodytag
549: ('Edit Portfolio File Information','','','',$resdomain));
550: &present_editable_metadata($r,$uri,'portfolio');
551:
552: } elsif ($uri=~/^\/\~/) {
553: # Construction space
554: $r->print(&Apache::loncommon::bodytag
555: ('Edit Catalog Information','','','',$resdomain));
556: &present_editable_metadata($r,$uri);
557: } else {
558: $r->print(&Apache::loncommon::bodytag
559: ('Catalog Information','','','',$resdomain));
560: &present_uneditable_metadata($r,$uri);
561: }
562: $r->print('</body></html>');
563: return OK;
564: }
565:
566: #####################################################
567: #####################################################
568: ### ###
569: ### Report Bombs ###
570: ### ###
571: #####################################################
572: #####################################################
573: sub report_bombs {
574: my ($r,$uri) = @_;
575: # Set document type
576: $uri =~ s:/adm/bombs/::;
577: $uri = &Apache::lonnet::declutter($uri);
578: $r->print('<h1>'.&Apache::lonnet::clutter($uri).'</h1>');
579: my ($domain,$author)=($uri=~/^(\w+)\/(\w+)\//);
580: if (&Apache::loncacc::constructaccess('/~'.$author.'/',$domain)) {
581: if ($env{'form.clearbombs'}) {
582: &Apache::lonmsg::clear_author_res_msg($uri);
583: }
584: my $clear=&mt('Clear all Messages in Subdirectory');
585: $r->print(<<ENDCLEAR);
586: <form method="post">
587: <input type="submit" name="clearbombs" value="$clear" />
588: </form>
589: ENDCLEAR
590: my %brokenurls =
591: &Apache::lonmsg::all_url_author_res_msg($author,$domain);
592: foreach (sort(keys(%brokenurls))) {
593: if ($_=~/^\Q$uri\E/) {
594: $r->print
595: ('<a href="'.&Apache::lonnet::clutter($_).'">'.$_.'</a>'.
596: &Apache::lonmsg::retrieve_author_res_msg($_).
597: '<hr />');
598: }
599: }
600: } else {
601: $r->print(&mt('Not authorized'));
602: }
603: return;
604: }
605:
606: #####################################################
607: #####################################################
608: ### ###
609: ### Uneditable Metadata Display ###
610: ### ###
611: #####################################################
612: #####################################################
613: sub present_uneditable_metadata {
614: my ($r,$uri) = @_;
615: #
616: my %content=();
617: # Read file
618: foreach (split(/\,/,&Apache::lonnet::metadata($uri,'keys'))) {
619: $content{$_}=&Apache::lonnet::metadata($uri,$_);
620: }
621: # Render Output
622: # displayed url
623: my ($thisversion)=($uri=~/\.(\d+)\.(\w+)\.meta$/);
624: $uri=~s/\.meta$//;
625: my $disuri=&Apache::lonnet::clutter($uri);
626: # version
627: my $currentversion=&Apache::lonnet::getversion($disuri);
628: my $versiondisplay='';
629: if ($thisversion) {
630: $versiondisplay=&mt('Version').': '.$thisversion.
631: ' ('.&mt('most recent version').': '.
632: ($currentversion>0 ?
633: $currentversion :
634: &mt('information not available')).')';
635: } else {
636: $versiondisplay='Version: '.$currentversion;
637: }
638: # crumbify displayed URL uri target prefix form size
639: $disuri=&Apache::lonhtmlcommon::crumbs($disuri,undef, undef, undef,'+1');
640: $disuri =~ s:<br />::g;
641: # obsolete
642: my $obsolete=$content{'obsolete'};
643: my $obsoletewarning='';
644: if (($obsolete) && ($env{'user.adv'})) {
645: $obsoletewarning='<p><font color="red">'.
646: &mt('This resource has been marked obsolete by the author(s)').
647: '</font></p>';
648: }
649: #
650: my %lt=&fieldnames();
651: my $table='';
652: my $title = $content{'title'};
653: if (! defined($title)) {
654: $title = 'Untitled Resource';
655: }
656: foreach ('title',
657: 'author',
658: 'subject',
659: 'keywords',
660: 'notes',
661: 'abstract',
662: 'lowestgradelevel',
663: 'highestgradelevel',
664: 'standards',
665: 'mime',
666: 'language',
667: 'creationdate',
668: 'lastrevisiondate',
669: 'owner',
670: 'copyright',
671: 'customdistributionfile',
672: 'sourceavail',
673: 'sourcerights',
674: 'obsolete',
675: 'obsoletereplacement') {
676: $table.='<tr><td bgcolor="#AAAAAA">'.$lt{$_}.
677: '</td><td bgcolor="#CCCCCC">'.
678: &prettyprint($_,$content{$_}).'</td></tr>';
679: delete $content{$_};
680: }
681: #
682: $r->print(<<ENDHEAD);
683: <h2>$title</h2>
684: <p>
685: $disuri<br />
686: $obsoletewarning
687: $versiondisplay
688: </p>
689: <table cellspacing="2" border="0">
690: $table
691: </table>
692: ENDHEAD
693: if ($env{'user.adv'}) {
694: &print_dynamic_metadata($r,$uri,\%content);
695: }
696: return;
697: }
698:
699: sub print_dynamic_metadata {
700: my ($r,$uri,$content) = @_;
701: #
702: my %content = %$content;
703: my %lt=&fieldnames();
704: #
705: my $description = 'Dynamic Metadata (updated periodically)';
706: $r->print('<h3>'.&mt($description).'</h3>'.
707: &mt('Processing'));
708: $r->rflush();
709: my %items=&fieldnames();
710: my %dynmeta=&dynamicmeta($uri);
711: #
712: # General Access and Usage Statistics
713: if (exists($dynmeta{'count'}) ||
714: exists($dynmeta{'sequsage'}) ||
715: exists($dynmeta{'comefrom'}) ||
716: exists($dynmeta{'goto'}) ||
717: exists($dynmeta{'course'})) {
718: $r->print('<h4>'.&mt('Access and Usage Statistics').'</h4>'.
719: '<table cellspacing="2" border="0">');
720: foreach ('count',
721: 'sequsage','sequsage_list',
722: 'comefrom','comefrom_list',
723: 'goto','goto_list',
724: 'course','course_list') {
725: $r->print('<tr><td bgcolor="#AAAAAA">'.$lt{$_}.'</td>'.
726: '<td bgcolor="#CCCCCC">'.
727: &prettyprint($_,$dynmeta{$_})."</td></tr>\n");
728: }
729: $r->print('</table>');
730: } else {
731: $r->print('<h4>'.&mt('No Access or Usages Statistics are available for this resource.').'</h4>');
732: }
733: #
734: # Assessment statistics
735: if ($uri=~/\.(problem|exam|quiz|assess|survey|form)$/) {
736: if (exists($dynmeta{'stdno'}) ||
737: exists($dynmeta{'avetries'}) ||
738: exists($dynmeta{'difficulty'}) ||
739: exists($dynmeta{'disc'})) {
740: # This is an assessment, print assessment data
741: $r->print('<h4>'.
742: &mt('Overall Assessment Statistical Data').
743: '</h4>'.
744: '<table cellspacing="2" border="0">');
745: $r->print('<tr><td bgcolor="#AAAAAA">'.$lt{'stdno'}.'</td>'.
746: '<td bgcolor="#CCCCCC">'.
747: &prettyprint('stdno',$dynmeta{'stdno'}).
748: '</td>'."</tr>\n");
749: foreach ('avetries','difficulty','disc') {
750: $r->print('<tr><td bgcolor="#AAAAAA">'.$lt{$_}.'</td>'.
751: '<td bgcolor="#CCCCCC">'.
752: &prettyprint($_,sprintf('%5.2f',$dynmeta{$_})).
753: '</td>'."</tr>\n");
754: }
755: $r->print('</table>');
756: }
757: if (exists($dynmeta{'stats'})) {
758: #
759: # New assessment statistics
760: $r->print('<h4>'.
761: &mt('Detailed Assessment Statistical Data').
762: '</h4>');
763: my $table = '<table cellspacing="2" border="0">'.
764: '<tr>'.
765: '<th>Course</th>'.
766: '<th>Section(s)</th>'.
767: '<th>Num Students</th>'.
768: '<th>Mean Tries</th>'.
769: '<th>Degree of Difficulty</th>'.
770: '<th>Degree of Discrimination</th>'.
771: '<th>Time of computation</th>'.
772: '</tr>'.$/;
773: foreach my $identifier (sort(keys(%{$dynmeta{'stats'}}))) {
774: my $data = $dynmeta{'stats'}->{$identifier};
775: my $course = $data->{'course'};
776: my %courseinfo = &Apache::lonnet::coursedescription($course);
777: if (! exists($courseinfo{'num'}) || $courseinfo{'num'} eq '') {
778: &Apache::lonnet::logthis('lookup for '.$course.' failed');
779: next;
780: }
781: $table .= '<tr>';
782: $table .=
783: '<td><nobr>'.$courseinfo{'description'}.'</nobr></td>';
784: $table .=
785: '<td align="right">'.$data->{'sections'}.'</td>';
786: $table .=
787: '<td align="right">'.$data->{'stdno'}.'</td>';
788: foreach ('avetries','difficulty','disc') {
789: $table .= '<td align="right">';
790: if (exists($data->{$_})) {
791: $table .= sprintf('%.2f',$data->{$_}).' ';
792: } else {
793: $table .= '';
794: }
795: $table .= '</td>';
796: }
797: $table .=
798: '<td><nobr>'.
799: &Apache::lonlocal::locallocaltime($data->{'timestamp'}).
800: '</nobr></td>';
801: $table .=
802: '</tr>'.$/;
803: }
804: $table .= '</table>'.$/;
805: $r->print($table);
806: } else {
807: $r->print('No new dynamic data found.');
808: }
809: } else {
810: $r->print('<h4>'.
811: &mt('No Assessment Statistical Data is available for this resource').
812: '</h4>');
813: }
814:
815: #
816: #
817: if (exists($dynmeta{'clear'}) ||
818: exists($dynmeta{'depth'}) ||
819: exists($dynmeta{'helpful'}) ||
820: exists($dynmeta{'correct'}) ||
821: exists($dynmeta{'technical'})){
822: $r->print('<h4>'.&mt('Evaluation Data').'</h4>'.
823: '<table cellspacing="2" border="0">');
824: foreach ('clear','depth','helpful','correct','technical') {
825: $r->print('<tr><td bgcolor="#AAAAAA">'.$lt{$_}.'</td>'.
826: '<td bgcolor="#CCCCCC">'.
827: &prettyprint($_,$dynmeta{$_})."</td></tr>\n");
828: }
829: $r->print('</table>');
830: } else {
831: $r->print('<h4>'.&mt('No Evaluation Data is available for this resource.').'</h4>');
832: }
833: $uri=~/^\/res\/(\w+)\/(\w+)\//;
834: if ((($env{'user.domain'} eq $1) && ($env{'user.name'} eq $2))
835: || ($env{'user.role.ca./'.$1.'/'.$2})) {
836: if (exists($dynmeta{'comments'})) {
837: $r->print('<h4>'.&mt('Evaluation Comments').' ('.
838: &mt('visible to author and co-authors only').
839: ')</h4>'.
840: '<blockquote>'.$dynmeta{'comments'}.'</blockquote>');
841: } else {
842: $r->print('<h4>'.&mt('There are no Evaluation Comments on this resource.').'</h4>');
843: }
844: my $bombs = &Apache::lonmsg::retrieve_author_res_msg($uri);
845: if (defined($bombs) && $bombs ne '') {
846: $r->print('<a name="bombs" /><h4>'.&mt('Error Messages').' ('.
847: &mt('visible to author and co-authors only').')'.
848: '</h4>'.$bombs);
849: } else {
850: $r->print('<h4>'.&mt('There are currently no Error Messages for this resource.').'</h4>');
851: }
852: }
853: #
854: # All other stuff
855: $r->print('<h3>'.
856: &mt('Additional Metadata (non-standard, parameters, exports)').
857: '</h3><table border="0" cellspacing="1">');
858: foreach (sort(keys(%content))) {
859: my $name=$_;
860: if ($name!~/\.display$/) {
861: my $display=&Apache::lonnet::metadata($uri,
862: $name.'.display');
863: if (! $display) {
864: $display=$name;
865: };
866: my $otherinfo='';
867: foreach ('name','part','type','default') {
868: if (defined(&Apache::lonnet::metadata($uri,
869: $name.'.'.$_))) {
870: $otherinfo.=' '.$_.'='.
871: &Apache::lonnet::metadata($uri,
872: $name.'.'.$_).'; ';
873: }
874: }
875: $r->print('<tr><td bgcolor="#bbccbb"><font size="-1" color="#556655">'.$display.'</font></td><td bgcolor="#ccddcc"><font size="-1" color="#556655">'.$content{$name});
876: if ($otherinfo) {
877: $r->print(' ('.$otherinfo.')');
878: }
879: $r->print("</font></td></tr>\n");
880: }
881: }
882: $r->print("</table>");
883: return;
884: }
885:
886: #####################################################
887: #####################################################
888: ### ###
889: ### Editable metadata display ###
890: ### ###
891: #####################################################
892: #####################################################
893: sub present_editable_metadata {
894: my ($r,$uri, $file_type) = @_;
895: # Construction Space Call
896: # Header
897: my $disuri=$uri;
898: my $fn=&Apache::lonnet::filelocation('',$uri);
899: $disuri=~s/^\/\~/\/priv\//;
900: $disuri=~s/\.meta$//;
901: my $target=$uri;
902: $target=~s/^\/\~/\/res\/$env{'request.role.domain'}\//;
903: $target=~s/\.meta$//;
904: my $bombs=&Apache::lonmsg::retrieve_author_res_msg($target);
905: if ($bombs) {
906: if ($env{'form.delmsg'}) {
907: if (&Apache::lonmsg::del_url_author_res_msg($target) eq 'ok') {
908: $bombs=&mt('Messages deleted.');
909: } else {
910: $bombs=&mt('Error deleting messages');
911: }
912: }
913: if ($env{'form.clearmsg'}) {
914: my $cleardir=$target;
915: $cleardir=~s/\/[^\/]+$/\//;
916: if (&Apache::lonmsg::clear_author_res_msg($cleardir) eq 'ok') {
917: $bombs=&mt('Messages cleared.');
918: } else {
919: $bombs=&mt('Error clearing messages');
920: }
921: }
922: my $del=&mt('Delete Messages for this Resource');
923: my $clear=&mt('Clear all Messages in Subdirectory');
924: $r->print(<<ENDBOMBS);
925: <h1>$disuri</h1>
926: <form method="post" name="defaultmeta">
927: <input type="submit" name="delmsg" value="$del" />
928: <input type="submit" name="clearmsg" value="$clear" />
929: <br />$bombs
930: ENDBOMBS
931: } else {
932: my $displayfile='Catalog Information for '.$disuri;
933: if ($disuri=~/\/default$/) {
934: my $dir=$disuri;
935: $dir=~s/default$//;
936: $displayfile=
937: &mt('Default Cataloging Information for Directory').' '.
938: $dir;
939: }
940: %Apache::lonpublisher::metadatafields=();
941: %Apache::lonpublisher::metadatakeys=();
942: my $result=&Apache::lonnet::getfile($fn);
943: if ($result == -1){
944: $r->print('Creating new '.$fn);
945: } else {
946: &Apache::lonpublisher::metaeval($result);
947: }
948: $r->print(<<ENDEDIT);
949: <h1>$displayfile</h1>
950: <form method="post" name="defaultmeta">
951: ENDEDIT
952: $r->print('<script language="JavaScript">'.
953: &Apache::loncommon::browser_and_searcher_javascript().
954: '</script>');
955: my %lt=&fieldnames($file_type);
956: my $output;
957: my @fields;
958: if ($file_type eq 'portfolio') {
959: @fields = ('author','title','subject','keywords','abstract','notes','lowestgradelevel',
960: 'highestgradelevel');
961: } else {
962: @fields = ('author','title','subject','keywords','abstract','notes',
963: 'copyright','customdistributionfile','language',
964: 'standards',
965: 'lowestgradelevel','highestgradelevel','sourceavail','sourcerights',
966: 'obsolete','obsoletereplacement');
967: }
968: foreach (@fields) {
969: if (defined($env{'form.new_'.$_})) {
970: $Apache::lonpublisher::metadatafields{$_}=
971: $env{'form.new_'.$_};
972: }
973: if (! $Apache::lonpublisher::metadatafields{'copyright'}) {
974: $Apache::lonpublisher::metadatafields{'copyright'}=
975: 'default';
976: }
977: $output.=('<p>'.$lt{$_}.': '.
978: &prettyinput($_,
979: $Apache::lonpublisher::metadatafields{$_},
980: 'new_'.$_,'defaultmeta').'</p>');
981: }
982: if ($env{'form.store'}) {
983: my $mfh;
984: my $formname='store';
985: my $file_content;
986: foreach (sort keys %Apache::lonpublisher::metadatafields) {
987: next if ($_ =~ /\./);
988: my $unikey=$_;
989: $unikey=~/^([A-Za-z]+)/;
990: my $tag=$1;
991: $tag=~tr/A-Z/a-z/;
992: $file_content.= "\n\<$tag";
993: foreach (split(/\,/,
994: $Apache::lonpublisher::metadatakeys{$unikey})
995: ) {
996: my $value=
997: $Apache::lonpublisher::metadatafields{$unikey.'.'.$_};
998: $value=~s/\"/\'\'/g;
999: $file_content.=' '.$_.'="'.$value.'"' ;
1000: # print $mfh ' '.$_.'="'.$value.'"';
1001: }
1002: $file_content.= '>'.
1003: &HTML::Entities::encode
1004: ($Apache::lonpublisher::metadatafields{$unikey},
1005: '<>&"').
1006: '</'.$tag.'>';
1007: }
1008: if ($fn =~ /\/portfolio\//) {
1009: $fn =~ /\/portfolio\/(.*)$/;
1010: my $new_fn = '/'.$1;
1011: $env{'form.'.$formname}=$file_content;
1012: $env{'form.'.$formname.'.filename'}=$new_fn;
1013: &Apache::lonnet::userfileupload('uploaddoc','',
1014: 'portfolio'.$env{'form.currentpath'});
1015: my $status =&Apache::lonnet::userfileupload($formname,'','portfolio');
1016: if (&Apache::lonnet::userfileupload($formname,'','portfolio') eq 'error: no uploaded file') {
1017: $r->print('<p><font color="red">'.
1018: &mt('Could not write metadata').', '.
1019: &mt('FAIL').'</font></p>');
1020: } else {
1021: $r->print('<p><font color="blue">'.&mt('Wrote Metadata').
1022: ' '.&Apache::lonlocal::locallocaltime(time).
1023: '</font></p>');
1024: }
1025: } else {
1026: if (! ($mfh=Apache::File->new('>'.$fn))) {
1027: $r->print('<p><font color="red">'.
1028: &mt('Could not write metadata').', '.
1029: &mt('FAIL').'</font></p>');
1030: } else {
1031: print $mfh $file_content;
1032: $r->print('<p><font color="blue">'.&mt('Wrote Metadata').
1033: ' '.&Apache::lonlocal::locallocaltime(time).
1034: '</font></p>');
1035: }
1036: }
1037: }
1038: $r->print($output.'<br /><input type="submit" name="store" value="'.
1039: &mt('Store Catalog Information').'">');
1040: }
1041: $r->print('</form>');
1042: return;
1043: }
1044:
1045: 1;
1046: __END__
1047:
1048:
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