1: # The LearningOnline Network with CAPA
2: # Metadata display handler
3: #
4: # $Id: lonmeta.pm,v 1.109 2005/10/06 22:16:32 albertel 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) || $file_type ne 'portfolio') {
252: %fields =
253: (%fields,
254: 'domain' => 'Domain',
255: 'standards' => 'Standards',
256: 'mime' => 'MIME Type',
257: 'language' => 'Language',
258: 'creationdate' => 'Creation Date',
259: 'lastrevisiondate' => 'Last Revision Date',
260: 'owner' => 'Publisher/Owner',
261: 'copyright' => 'Copyright/Distribution',
262: 'customdistributionfile' => 'Custom Distribution File',
263: 'sourceavail' => 'Source Available',
264: 'sourcerights' => 'Source Custom Distribution File',
265: 'obsolete' => 'Obsolete',
266: 'obsoletereplacement' => 'Suggested Replacement for Obsolete File',
267: 'count' => 'Network-wide number of accesses (hits)',
268: 'course' => 'Network-wide number of courses using resource',
269: 'course_list' => 'Network-wide courses using resource',
270: 'sequsage' => 'Number of resources using or importing resource',
271: 'sequsage_list' => 'Resources using or importing resource',
272: 'goto' => 'Number of resources that follow this resource in maps',
273: 'goto_list' => 'Resources that follow this resource in maps',
274: 'comefrom' => 'Number of resources that lead up to this resource in maps',
275: 'comefrom_list' => 'Resources that lead up to this resource in maps',
276: 'clear' => 'Material presented in clear way',
277: 'depth' => 'Material covered with sufficient depth',
278: 'helpful' => 'Material is helpful',
279: 'correct' => 'Material appears to be correct',
280: 'technical' => 'Resource is technically correct',
281: 'avetries' => 'Average number of tries till solved',
282: 'stdno' => 'Total number of students who have worked on this problem',
283: 'difficulty' => 'Degree of difficulty',
284: 'disc' => 'Degree of discrimination',
285: 'dependencies' => 'Resources used by this resource',
286: );
287: }
288: return &Apache::lonlocal::texthash(%fields);
289: }
290:
291: sub select_course {
292: my ($r)=@_;
293: $r->print('<h3>Instructor Selected Meta-Data</h3><br />');
294: $r->print('<form action="" method="post">');
295: $r->print('Select your course<br />');
296: $r->print('<select name="metacourse" >');
297: my $meta_not_found = 1;
298: foreach my $key (keys %env) {
299: if ($key =~ /\.metadata\./) {
300: if ($meta_not_found) {
301: undef($meta_not_found);
302: $r->print('<h3>Instructor Selected Meta-Data</h3><br />');
303: $r->print('<form action="" method="post">');
304: $r->print('Select your course<br />');
305: $r->print('<select name="metacourse" >');
306: }
307: my $course_key = $key;
308: $course_key =~ s/\.metadata\..*//;
309: $r->print('<option value="'.$course_key.'">');
310: $r->print($env{$course_key.'.description'});
311: $r->print('</option>');
312: }
313: }
314: unless ($meta_not_found) {
315: $r->print('</select><br />');
316: $r->print('<input type="submit" value="Assign Instructor Metadata" />');
317: $r->print('</form>');
318: }
319: return 'ok';
320: }
321: # Pretty printing of metadata field
322:
323: sub prettyprint {
324: my ($type,$value,$target,$prefix,$form,$noformat)=@_;
325: # $target,$prefix,$form are optional and for filecrumbs only
326: if (! defined($value)) {
327: return ' ';
328: }
329: # Title
330: if ($type eq 'title') {
331: return '<font size="+1" face="arial">'.$value.'</font>';
332: }
333: # Dates
334: if (($type eq 'creationdate') ||
335: ($type eq 'lastrevisiondate')) {
336: return ($value?&Apache::lonlocal::locallocaltime(
337: &Apache::lonmysql::unsqltime($value)):
338: &mt('not available'));
339: }
340: # Language
341: if ($type eq 'language') {
342: return &Apache::loncommon::languagedescription($value);
343: }
344: # Copyright
345: if ($type eq 'copyright') {
346: return &Apache::loncommon::copyrightdescription($value);
347: }
348: # Copyright
349: if ($type eq 'sourceavail') {
350: return &Apache::loncommon::source_copyrightdescription($value);
351: }
352: # MIME
353: if ($type eq 'mime') {
354: return '<img src="'.&Apache::loncommon::icon($value).'" /> '.
355: &Apache::loncommon::filedescription($value);
356: }
357: # Person
358: if (($type eq 'author') ||
359: ($type eq 'owner') ||
360: ($type eq 'modifyinguser') ||
361: ($type eq 'authorspace')) {
362: $value=~s/(\w+)(\:|\@)(\w+)/&authordisplay($1,$3)/gse;
363: return $value;
364: }
365: # Gradelevel
366: if (($type eq 'lowestgradelevel') ||
367: ($type eq 'highestgradelevel')) {
368: return &Apache::loncommon::gradeleveldescription($value);
369: }
370: # Only for advance users below
371: if (! $env{'user.adv'}) {
372: return '<i>- '.&mt('not displayed').' -</i>';
373: }
374: # File
375: if (($type eq 'customdistributionfile') ||
376: ($type eq 'obsoletereplacement') ||
377: ($type eq 'goto_list') ||
378: ($type eq 'comefrom_list') ||
379: ($type eq 'sequsage_list') ||
380: ($type eq 'dependencies')) {
381: return '<ul><font size="-1">'.join("\n",map {
382: my $url = &Apache::lonnet::clutter($_);
383: my $title = &Apache::lonnet::gettitle($url);
384: if ($title eq '') {
385: $title = 'Untitled';
386: if ($url =~ /\.sequence$/) {
387: $title .= ' Sequence';
388: } elsif ($url =~ /\.page$/) {
389: $title .= ' Page';
390: } elsif ($url =~ /\.problem$/) {
391: $title .= ' Problem';
392: } elsif ($url =~ /\.html$/) {
393: $title .= ' HTML document';
394: } elsif ($url =~ m:/syllabus$:) {
395: $title .= ' Syllabus';
396: }
397: }
398: $_ = '<li>'.$title.' '.
399: &Apache::lonhtmlcommon::crumbs($url,$target,$prefix,$form,'-1',$noformat).
400: '</li>'
401: } split(/\s*\,\s*/,$value)).'</ul></font>';
402: }
403: # Evaluations
404: if (($type eq 'clear') ||
405: ($type eq 'depth') ||
406: ($type eq 'helpful') ||
407: ($type eq 'correct') ||
408: ($type eq 'technical')) {
409: return &evalgraph($value);
410: }
411: # Difficulty
412: if ($type eq 'difficulty' || $type eq 'disc') {
413: return &diffgraph($value);
414: }
415: # List of courses
416: if ($type=~/\_list/) {
417: my @Courses = split(/\s*\,\s*/,$value);
418: my $Str;
419: foreach my $course (@Courses) {
420: my %courseinfo = &Apache::lonnet::coursedescription($course);
421: if (! exists($courseinfo{'num'}) || $courseinfo{'num'} eq '') {
422: next;
423: }
424: if ($Str ne '') { $Str .= '<br />'; }
425: $Str .= '<a href="/public/'.$courseinfo{'domain'}.'/'.
426: $courseinfo{'num'}.'/syllabus" target="preview">'.
427: $courseinfo{'description'}.'</a>';
428: }
429: return $Str;
430: }
431: # No pretty print found
432: return $value;
433: }
434:
435: # Pretty input of metadata field
436: sub direct {
437: return shift;
438: }
439:
440: sub selectbox {
441: my ($name,$value,$functionref,@idlist)=@_;
442: if (! defined($functionref)) {
443: $functionref=\&direct;
444: }
445: my $selout='<select name="'.$name.'">';
446: foreach (@idlist) {
447: $selout.='<option value=\''.$_.'\'';
448: if ($_ eq $value) {
449: $selout.=' selected>'.&{$functionref}($_).'</option>';
450: }
451: else {$selout.='>'.&{$functionref}($_).'</option>';}
452: }
453: return $selout.'</select>';
454: }
455:
456: sub relatedfield {
457: my ($show,$relatedsearchflag,$relatedsep,$fieldname,$relatedvalue)=@_;
458: if (! $relatedsearchflag) {
459: return '';
460: }
461: if (! defined($relatedsep)) {
462: $relatedsep=' ';
463: }
464: if (! $show) {
465: return $relatedsep.' ';
466: }
467: return $relatedsep.'<input type="checkbox" name="'.$fieldname.'_related"'.
468: ($relatedvalue?' checked="1"':'').' />';
469: }
470:
471: sub prettyinput {
472: my ($type,$value,$fieldname,$formname,
473: $relatedsearchflag,$relatedsep,$relatedvalue,$size)=@_;
474: if (! defined($size)) {
475: $size = 80;
476: }
477: # Language
478: if ($type eq 'language') {
479: return &selectbox($fieldname,
480: $value,
481: \&Apache::loncommon::languagedescription,
482: (&Apache::loncommon::languageids)).
483: &relatedfield(0,$relatedsearchflag,$relatedsep);
484: }
485: # Copyright
486: if ($type eq 'copyright') {
487: return &selectbox($fieldname,
488: $value,
489: \&Apache::loncommon::copyrightdescription,
490: (&Apache::loncommon::copyrightids)).
491: &relatedfield(0,$relatedsearchflag,$relatedsep);
492: }
493: # Source Copyright
494: if ($type eq 'sourceavail') {
495: return &selectbox($fieldname,
496: $value,
497: \&Apache::loncommon::source_copyrightdescription,
498: (&Apache::loncommon::source_copyrightids)).
499: &relatedfield(0,$relatedsearchflag,$relatedsep);
500: }
501: # Gradelevels
502: if (($type eq 'lowestgradelevel') ||
503: ($type eq 'highestgradelevel')) {
504: return &Apache::loncommon::select_level_form($value,$fieldname).
505: &relatedfield(0,$relatedsearchflag,$relatedsep);
506: }
507: # Obsolete
508: if ($type eq 'obsolete') {
509: return '<input type="checkbox" name="'.$fieldname.'"'.
510: ($value?' checked="1"':'').' />'.
511: &relatedfield(0,$relatedsearchflag,$relatedsep);
512: }
513: # Obsolete replacement file
514: if ($type eq 'obsoletereplacement') {
515: return '<input type="text" name="'.$fieldname.
516: '" size="60" value="'.$value.'" /><a href="javascript:openbrowser'.
517: "('".$formname."','".$fieldname."'".
518: ",'')\">".&mt('Select').'</a>'.
519: &relatedfield(0,$relatedsearchflag,$relatedsep);
520: }
521: # Customdistribution file
522: if ($type eq 'customdistributionfile') {
523: return '<input type="text" name="'.$fieldname.
524: '" size="60" value="'.$value.'" /><a href="javascript:openbrowser'.
525: "('".$formname."','".$fieldname."'".
526: ",'rights')\">".&mt('Select').'</a>'.
527: &relatedfield(0,$relatedsearchflag,$relatedsep);
528: }
529: # Source Customdistribution file
530: if ($type eq 'sourcerights') {
531: return '<input type="text" name="'.$fieldname.
532: '" size="60" value="'.$value.'" /><a href="javascript:openbrowser'.
533: "('".$formname."','".$fieldname."'".
534: ",'rights')\">".&mt('Select').'</a>'.
535: &relatedfield(0,$relatedsearchflag,$relatedsep);
536: }
537: # Dates
538: if (($type eq 'creationdate') ||
539: ($type eq 'lastrevisiondate')) {
540: return
541: &Apache::lonhtmlcommon::date_setter($formname,$fieldname,$value).
542: &relatedfield(0,$relatedsearchflag,$relatedsep);
543: }
544: # No pretty input found
545: $value=~s/^\s+//gs;
546: $value=~s/\s+$//gs;
547: $value=~s/\s+/ /gs;
548: $value=~s/\"/\"\;/gs;
549: return
550: '<input type="text" name="'.$fieldname.'" size="'.$size.'" '.
551: 'value="'.$value.'" />'.
552: &relatedfield(1,$relatedsearchflag,$relatedsep,$fieldname,
553: $relatedvalue);
554: }
555:
556: # Main Handler
557: sub handler {
558: my $r=shift;
559: #
560: my $uri=$r->uri;
561: #
562: # Set document type
563: &Apache::loncommon::content_type($r,'text/html');
564: $r->send_http_header;
565: return OK if $r->header_only;
566: #
567: my ($resdomain,$resuser)=
568: (&Apache::lonnet::declutter($uri)=~/^(\w+)\/(\w+)\//);
569: my $html=&Apache::lonxml::xmlbegin();
570: $r->print($html.'<head><title>'.
571: 'Catalog Information'.
572: '</title></head>');
573: if ($uri=~m:/adm/bombs/(.*)$:) {
574: $r->print(&Apache::loncommon::bodytag('Error Messages'));
575: # Looking for all bombs?
576: &report_bombs($r,$uri);
577: } elsif ($uri=~/\/portfolio\//) {
578: ($resdomain,$resuser)=
579: (&Apache::lonnet::declutter($uri)=~m|^(\w+)/(\w+)/portfolio|);
580: $r->print(&Apache::loncommon::bodytag
581: ('Edit Portfolio File Information','','','',$resdomain));
582: &present_editable_metadata($r,$uri,'portfolio');
583: &select_course($r);
584: } elsif ($uri=~/^\/\~/) {
585: # Construction space
586: $r->print(&Apache::loncommon::bodytag
587: ('Edit Catalog Information','','','',$resdomain));
588: &present_editable_metadata($r,$uri);
589: } else {
590: $r->print(&Apache::loncommon::bodytag
591: ('Catalog Information','','','',$resdomain));
592: &present_uneditable_metadata($r,$uri);
593: }
594: $r->print('</body></html>');
595: return OK;
596: }
597:
598: #####################################################
599: #####################################################
600: ### ###
601: ### Report Bombs ###
602: ### ###
603: #####################################################
604: #####################################################
605: sub report_bombs {
606: my ($r,$uri) = @_;
607: # Set document type
608: $uri =~ s:/adm/bombs/::;
609: $uri = &Apache::lonnet::declutter($uri);
610: $r->print('<h1>'.&Apache::lonnet::clutter($uri).'</h1>');
611: my ($domain,$author)=($uri=~/^(\w+)\/(\w+)\//);
612: if (&Apache::loncacc::constructaccess('/~'.$author.'/',$domain)) {
613: if ($env{'form.clearbombs'}) {
614: &Apache::lonmsg::clear_author_res_msg($uri);
615: }
616: my $clear=&mt('Clear all Messages in Subdirectory');
617: $r->print(<<ENDCLEAR);
618: <form method="post">
619: <input type="submit" name="clearbombs" value="$clear" />
620: </form>
621: ENDCLEAR
622: my %brokenurls =
623: &Apache::lonmsg::all_url_author_res_msg($author,$domain);
624: foreach (sort(keys(%brokenurls))) {
625: if ($_=~/^\Q$uri\E/) {
626: $r->print
627: ('<a href="'.&Apache::lonnet::clutter($_).'">'.$_.'</a>'.
628: &Apache::lonmsg::retrieve_author_res_msg($_).
629: '<hr />');
630: }
631: }
632: } else {
633: $r->print(&mt('Not authorized'));
634: }
635: return;
636: }
637:
638: #####################################################
639: #####################################################
640: ### ###
641: ### Uneditable Metadata Display ###
642: ### ###
643: #####################################################
644: #####################################################
645: sub present_uneditable_metadata {
646: my ($r,$uri) = @_;
647: #
648: my %content=();
649: # Read file
650: foreach (split(/\,/,&Apache::lonnet::metadata($uri,'keys'))) {
651: $content{$_}=&Apache::lonnet::metadata($uri,$_);
652: }
653: # Render Output
654: # displayed url
655: my ($thisversion)=($uri=~/\.(\d+)\.(\w+)\.meta$/);
656: $uri=~s/\.meta$//;
657: my $disuri=&Apache::lonnet::clutter($uri);
658: # version
659: my $currentversion=&Apache::lonnet::getversion($disuri);
660: my $versiondisplay='';
661: if ($thisversion) {
662: $versiondisplay=&mt('Version').': '.$thisversion.
663: ' ('.&mt('most recent version').': '.
664: ($currentversion>0 ?
665: $currentversion :
666: &mt('information not available')).')';
667: } else {
668: $versiondisplay='Version: '.$currentversion;
669: }
670: # crumbify displayed URL uri target prefix form size
671: $disuri=&Apache::lonhtmlcommon::crumbs($disuri,undef, undef, undef,'+1');
672: $disuri =~ s:<br />::g;
673: # obsolete
674: my $obsolete=$content{'obsolete'};
675: my $obsoletewarning='';
676: if (($obsolete) && ($env{'user.adv'})) {
677: $obsoletewarning='<p><font color="red">'.
678: &mt('This resource has been marked obsolete by the author(s)').
679: '</font></p>';
680: }
681: #
682: my %lt=&fieldnames();
683: my $table='';
684: my $title = $content{'title'};
685: if (! defined($title)) {
686: $title = 'Untitled Resource';
687: }
688: foreach ('title',
689: 'author',
690: 'subject',
691: 'keywords',
692: 'notes',
693: 'abstract',
694: 'lowestgradelevel',
695: 'highestgradelevel',
696: 'standards',
697: 'mime',
698: 'language',
699: 'creationdate',
700: 'lastrevisiondate',
701: 'owner',
702: 'copyright',
703: 'customdistributionfile',
704: 'sourceavail',
705: 'sourcerights',
706: 'obsolete',
707: 'obsoletereplacement') {
708: $table.='<tr><td bgcolor="#AAAAAA">'.$lt{$_}.
709: '</td><td bgcolor="#CCCCCC">'.
710: &prettyprint($_,$content{$_}).'</td></tr>';
711: delete $content{$_};
712: }
713: #
714: $r->print(<<ENDHEAD);
715: <h2>$title</h2>
716: <p>
717: $disuri<br />
718: $obsoletewarning
719: $versiondisplay
720: </p>
721: <table cellspacing="2" border="0">
722: $table
723: </table>
724: ENDHEAD
725: if ($env{'user.adv'}) {
726: &print_dynamic_metadata($r,$uri,\%content);
727: }
728: return;
729: }
730:
731: sub print_dynamic_metadata {
732: my ($r,$uri,$content) = @_;
733: #
734: my %content = %$content;
735: my %lt=&fieldnames();
736: #
737: my $description = 'Dynamic Metadata (updated periodically)';
738: $r->print('<h3>'.&mt($description).'</h3>'.
739: &mt('Processing'));
740: $r->rflush();
741: my %items=&fieldnames();
742: my %dynmeta=&dynamicmeta($uri);
743: #
744: # General Access and Usage Statistics
745: if (exists($dynmeta{'count'}) ||
746: exists($dynmeta{'sequsage'}) ||
747: exists($dynmeta{'comefrom'}) ||
748: exists($dynmeta{'goto'}) ||
749: exists($dynmeta{'course'})) {
750: $r->print('<h4>'.&mt('Access and Usage Statistics').'</h4>'.
751: '<table cellspacing="2" border="0">');
752: foreach ('count',
753: 'sequsage','sequsage_list',
754: 'comefrom','comefrom_list',
755: 'goto','goto_list',
756: 'course','course_list') {
757: $r->print('<tr><td bgcolor="#AAAAAA">'.$lt{$_}.'</td>'.
758: '<td bgcolor="#CCCCCC">'.
759: &prettyprint($_,$dynmeta{$_})."</td></tr>\n");
760: }
761: $r->print('</table>');
762: } else {
763: $r->print('<h4>'.&mt('No Access or Usages Statistics are available for this resource.').'</h4>');
764: }
765: #
766: # Assessment statistics
767: if ($uri=~/\.(problem|exam|quiz|assess|survey|form)$/) {
768: if (exists($dynmeta{'stdno'}) ||
769: exists($dynmeta{'avetries'}) ||
770: exists($dynmeta{'difficulty'}) ||
771: exists($dynmeta{'disc'})) {
772: # This is an assessment, print assessment data
773: $r->print('<h4>'.
774: &mt('Overall Assessment Statistical Data').
775: '</h4>'.
776: '<table cellspacing="2" border="0">');
777: $r->print('<tr><td bgcolor="#AAAAAA">'.$lt{'stdno'}.'</td>'.
778: '<td bgcolor="#CCCCCC">'.
779: &prettyprint('stdno',$dynmeta{'stdno'}).
780: '</td>'."</tr>\n");
781: foreach ('avetries','difficulty','disc') {
782: $r->print('<tr><td bgcolor="#AAAAAA">'.$lt{$_}.'</td>'.
783: '<td bgcolor="#CCCCCC">'.
784: &prettyprint($_,sprintf('%5.2f',$dynmeta{$_})).
785: '</td>'."</tr>\n");
786: }
787: $r->print('</table>');
788: }
789: if (exists($dynmeta{'stats'})) {
790: #
791: # New assessment statistics
792: $r->print('<h4>'.
793: &mt('Detailed Assessment Statistical Data').
794: '</h4>');
795: my $table = '<table cellspacing="2" border="0">'.
796: '<tr>'.
797: '<th>Course</th>'.
798: '<th>Section(s)</th>'.
799: '<th>Num Students</th>'.
800: '<th>Mean Tries</th>'.
801: '<th>Degree of Difficulty</th>'.
802: '<th>Degree of Discrimination</th>'.
803: '<th>Time of computation</th>'.
804: '</tr>'.$/;
805: foreach my $identifier (sort(keys(%{$dynmeta{'stats'}}))) {
806: my $data = $dynmeta{'stats'}->{$identifier};
807: my $course = $data->{'course'};
808: my %courseinfo = &Apache::lonnet::coursedescription($course);
809: if (! exists($courseinfo{'num'}) || $courseinfo{'num'} eq '') {
810: &Apache::lonnet::logthis('lookup for '.$course.' failed');
811: next;
812: }
813: $table .= '<tr>';
814: $table .=
815: '<td><nobr>'.$courseinfo{'description'}.'</nobr></td>';
816: $table .=
817: '<td align="right">'.$data->{'sections'}.'</td>';
818: $table .=
819: '<td align="right">'.$data->{'stdno'}.'</td>';
820: foreach ('avetries','difficulty','disc') {
821: $table .= '<td align="right">';
822: if (exists($data->{$_})) {
823: $table .= sprintf('%.2f',$data->{$_}).' ';
824: } else {
825: $table .= '';
826: }
827: $table .= '</td>';
828: }
829: $table .=
830: '<td><nobr>'.
831: &Apache::lonlocal::locallocaltime($data->{'timestamp'}).
832: '</nobr></td>';
833: $table .=
834: '</tr>'.$/;
835: }
836: $table .= '</table>'.$/;
837: $r->print($table);
838: } else {
839: $r->print('No new dynamic data found.');
840: }
841: } else {
842: $r->print('<h4>'.
843: &mt('No Assessment Statistical Data is available for this resource').
844: '</h4>');
845: }
846:
847: #
848: #
849: if (exists($dynmeta{'clear'}) ||
850: exists($dynmeta{'depth'}) ||
851: exists($dynmeta{'helpful'}) ||
852: exists($dynmeta{'correct'}) ||
853: exists($dynmeta{'technical'})){
854: $r->print('<h4>'.&mt('Evaluation Data').'</h4>'.
855: '<table cellspacing="2" border="0">');
856: foreach ('clear','depth','helpful','correct','technical') {
857: $r->print('<tr><td bgcolor="#AAAAAA">'.$lt{$_}.'</td>'.
858: '<td bgcolor="#CCCCCC">'.
859: &prettyprint($_,$dynmeta{$_})."</td></tr>\n");
860: }
861: $r->print('</table>');
862: } else {
863: $r->print('<h4>'.&mt('No Evaluation Data is available for this resource.').'</h4>');
864: }
865: $uri=~/^\/res\/(\w+)\/(\w+)\//;
866: if ((($env{'user.domain'} eq $1) && ($env{'user.name'} eq $2))
867: || ($env{'user.role.ca./'.$1.'/'.$2})) {
868: if (exists($dynmeta{'comments'})) {
869: $r->print('<h4>'.&mt('Evaluation Comments').' ('.
870: &mt('visible to author and co-authors only').
871: ')</h4>'.
872: '<blockquote>'.$dynmeta{'comments'}.'</blockquote>');
873: } else {
874: $r->print('<h4>'.&mt('There are no Evaluation Comments on this resource.').'</h4>');
875: }
876: my $bombs = &Apache::lonmsg::retrieve_author_res_msg($uri);
877: if (defined($bombs) && $bombs ne '') {
878: $r->print('<a name="bombs" /><h4>'.&mt('Error Messages').' ('.
879: &mt('visible to author and co-authors only').')'.
880: '</h4>'.$bombs);
881: } else {
882: $r->print('<h4>'.&mt('There are currently no Error Messages for this resource.').'</h4>');
883: }
884: }
885: #
886: # All other stuff
887: $r->print('<h3>'.
888: &mt('Additional Metadata (non-standard, parameters, exports)').
889: '</h3><table border="0" cellspacing="1">');
890: foreach (sort(keys(%content))) {
891: my $name=$_;
892: if ($name!~/\.display$/) {
893: my $display=&Apache::lonnet::metadata($uri,
894: $name.'.display');
895: if (! $display) {
896: $display=$name;
897: };
898: my $otherinfo='';
899: foreach ('name','part','type','default') {
900: if (defined(&Apache::lonnet::metadata($uri,
901: $name.'.'.$_))) {
902: $otherinfo.=' '.$_.'='.
903: &Apache::lonnet::metadata($uri,
904: $name.'.'.$_).'; ';
905: }
906: }
907: $r->print('<tr><td bgcolor="#bbccbb"><font size="-1" color="#556655">'.$display.'</font></td><td bgcolor="#ccddcc"><font size="-1" color="#556655">'.$content{$name});
908: if ($otherinfo) {
909: $r->print(' ('.$otherinfo.')');
910: }
911: $r->print("</font></td></tr>\n");
912: }
913: }
914: $r->print("</table>");
915: return;
916: }
917:
918:
919:
920: #####################################################
921: #####################################################
922: ### ###
923: ### Editable metadata display ###
924: ### ###
925: #####################################################
926: #####################################################
927: sub present_editable_metadata {
928: my ($r,$uri, $file_type) = @_;
929: # Construction Space Call
930: # Header
931: my $disuri=$uri;
932: my $fn=&Apache::lonnet::filelocation('',$uri);
933: $disuri=~s/^\/\~/\/priv\//;
934: $disuri=~s/\.meta$//;
935: my $target=$uri;
936: $target=~s/^\/\~/\/res\/$env{'request.role.domain'}\//;
937: $target=~s/\.meta$//;
938: my $bombs=&Apache::lonmsg::retrieve_author_res_msg($target);
939: if ($bombs) {
940: my $showdel=1;
941: if ($env{'form.delmsg'}) {
942: if (&Apache::lonmsg::del_url_author_res_msg($target) eq 'ok') {
943: $bombs=&mt('Messages deleted.');
944: $showdel=0;
945: } else {
946: $bombs=&mt('Error deleting messages');
947: }
948: }
949: if ($env{'form.clearmsg'}) {
950: my $cleardir=$target;
951: $cleardir=~s/\/[^\/]+$/\//;
952: if (&Apache::lonmsg::clear_author_res_msg($cleardir) eq 'ok') {
953: $bombs=&mt('Messages cleared.');
954: $showdel=0;
955: } else {
956: $bombs=&mt('Error clearing messages');
957: }
958: }
959: my $del=&mt('Delete Messages for this Resource');
960: my $clear=&mt('Clear all Messages in Subdirectory');
961: my $goback=&mt('Back to Source File');
962: $r->print(<<ENDBOMBS);
963: <h1>$disuri</h1>
964: <form method="post" name="defaultmeta">
965: ENDBOMBS
966: if ($showdel) {
967: $r->print(<<ENDDEL);
968: <input type="submit" name="delmsg" value="$del" />
969: <input type="submit" name="clearmsg" value="$clear" />
970: ENDDEL
971: } else {
972: $r->print('<a href="'.$disuri.'" />'.$goback.'</a>');
973: }
974: $r->print('<br />'.$bombs);
975: } else {
976: my $displayfile='Catalog Information for '.$disuri;
977: if ($disuri=~/\/default$/) {
978: my $dir=$disuri;
979: $dir=~s/default$//;
980: $displayfile=
981: &mt('Default Cataloging Information for Directory').' '.
982: $dir;
983: }
984: %Apache::lonpublisher::metadatafields=();
985: %Apache::lonpublisher::metadatakeys=();
986: my $result=&Apache::lonnet::getfile($fn);
987: if ($result == -1){
988: $r->print('Creating new '.$fn);
989: } else {
990: &Apache::lonpublisher::metaeval($result);
991: }
992: $r->print(<<ENDEDIT);
993: <h1>$displayfile</h1>
994: <form method="post" name="defaultmeta">
995: ENDEDIT
996: $r->print('<script language="JavaScript">'.
997: &Apache::loncommon::browser_and_searcher_javascript().
998: '</script>');
999: my %lt=&fieldnames($file_type);
1000: my $output;
1001: my @fields;
1002: if ($file_type eq 'portfolio') {
1003: @fields = ('author','title','subject','keywords','abstract','notes','lowestgradelevel',
1004: 'highestgradelevel');
1005: } else {
1006: @fields = ('author','title','subject','keywords','abstract','notes',
1007: 'copyright','customdistributionfile','language',
1008: 'standards',
1009: 'lowestgradelevel','highestgradelevel','sourceavail','sourcerights',
1010: 'obsolete','obsoletereplacement');
1011: }
1012: foreach (@fields) {
1013: if (defined($env{'form.new_'.$_})) {
1014: $Apache::lonpublisher::metadatafields{$_}=
1015: $env{'form.new_'.$_};
1016: }
1017: if (! $Apache::lonpublisher::metadatafields{'copyright'}) {
1018: $Apache::lonpublisher::metadatafields{'copyright'}=
1019: 'default';
1020: }
1021: $output.=('<p>'.$lt{$_}.': '.
1022: &prettyinput($_,
1023: $Apache::lonpublisher::metadatafields{$_},
1024: 'new_'.$_,'defaultmeta').'</p>');
1025: if ($env{'form.metacourse'}) {
1026: $r->print('This is the instructor metadata area<br />');
1027: # have to find all the metadata items, so we'll loop through and find them
1028: $r->print('<form method="post" action="" size="3" >');
1029: $r->print('The course is: '.$env{'form.metacourse'}.'<br>');
1030: foreach my $key (sort keys %env) {
1031: if ($key=~m/^($env{'form.metacourse'}\.metadata\.)(\d+)\.title/) {
1032: my $key_base = $1;
1033: my $item_num = $2;
1034: # found one, so let's display it
1035: my $title = $env{$key_base.$item_num.'.title'};
1036: my $type = $env{$key_base.$item_num.'.type'};
1037: my @choices = sort(split /, /,$env{$key_base.$item_num.'.values'});
1038: $r->print($title.'<br />');
1039: $r->print($type.'<br />');
1040:
1041: foreach my $word (@choices) {
1042: my $checked;
1043: if ($Apache::lonpublisher::metadatafields{'coursekeyword'}=~ m/$word/) {
1044: $checked = 1;
1045: } else {
1046: undef($checked);
1047: }
1048: $r->print(&Apache::lonhtmlcommon::checkbox('instmeta_'.$env{'form.metacourse'}.'_'.$item_num,$checked,$word).$word.'<br />');
1049: }
1050: }
1051: }
1052: $r->print('<br /><input type="submit" name="store" value="Assign Meta-data" />');
1053: $r->print('</form>');
1054: return 'ok';
1055: }
1056: }
1057: if ($env{'form.store'}) {
1058: my $mfh;
1059: my $formname='store';
1060: my $file_content;
1061: foreach my $meta_field (keys %env) {
1062: if ($meta_field=~m/^form.instmeta_(.+)_(\d+)$/) {
1063: $r->print('Found a field<br>');
1064: }
1065: if (&Apache::loncommon::get_env_multiple('form.keywords')) {
1066: $Apache::lonpublisher::metadatafields{'coursekeyword'} =
1067: join (', ', &Apache::loncommon::get_env_multiple('form.keywords'));
1068: }
1069: }
1070: foreach (sort keys %Apache::lonpublisher::metadatafields) {
1071: next if ($_ =~ /\./);
1072: my $unikey=$_;
1073: $unikey=~/^([A-Za-z]+)/;
1074: my $tag=$1;
1075: $tag=~tr/A-Z/a-z/;
1076: $file_content.= "\n\<$tag";
1077: foreach (split(/\,/,
1078: $Apache::lonpublisher::metadatakeys{$unikey})
1079: ) {
1080: my $value=
1081: $Apache::lonpublisher::metadatafields{$unikey.'.'.$_};
1082: $value=~s/\"/\'\'/g;
1083: $file_content.=' '.$_.'="'.$value.'"' ;
1084: # print $mfh ' '.$_.'="'.$value.'"';
1085: }
1086: $file_content.= '>'.
1087: &HTML::Entities::encode
1088: ($Apache::lonpublisher::metadatafields{$unikey},
1089: '<>&"').
1090: '</'.$tag.'>';
1091: }
1092: if ($fn =~ /\/portfolio\//) {
1093: $fn =~ /\/portfolio\/(.*)$/;
1094: my $new_fn = '/'.$1;
1095: $env{'form.'.$formname}=$file_content;
1096: $env{'form.'.$formname.'.filename'}=$new_fn;
1097: &Apache::lonnet::userfileupload('uploaddoc','',
1098: 'portfolio'.$env{'form.currentpath'});
1099: my $status =&Apache::lonnet::userfileupload($formname,'','portfolio');
1100: if (&Apache::lonnet::userfileupload($formname,'','portfolio') eq 'error: no uploaded file') {
1101: $r->print('<p><font color="red">'.
1102: &mt('Could not write metadata').', '.
1103: &mt('FAIL').'</font></p>');
1104: } else {
1105: $r->print('<p><font color="blue">'.&mt('Wrote Metadata').
1106: ' '.&Apache::lonlocal::locallocaltime(time).
1107: '</font></p>');
1108: }
1109: } else {
1110: if (! ($mfh=Apache::File->new('>'.$fn))) {
1111: $r->print('<p><font color="red">'.
1112: &mt('Could not write metadata').', '.
1113: &mt('FAIL').'</font></p>');
1114: } else {
1115: print $mfh $file_content;
1116: $r->print('<p><font color="blue">'.&mt('Wrote Metadata').
1117: ' '.&Apache::lonlocal::locallocaltime(time).
1118: '</font></p>');
1119: }
1120: }
1121: }
1122: $r->print($output.'<br /><input type="submit" name="store" value="'.
1123: &mt('Store Catalog Information').'">');
1124: }
1125: $r->print('</form>');
1126: return;
1127: }
1128:
1129: 1;
1130: __END__
1131:
1132:
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