1: # The LearningOnline Network with CAPA
2: # Metadata display handler
3: #
4: # $Id: lonmeta.pm,v 1.104 2005/08/09 00:24:55 banghart 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: $r->print(&Apache::loncommon::bodytag
579: ('Edit Portfolio File Information','','','',$resdomain));
580: if ($env{'form.metacourse'}) {
581: &present_instructor_metadata($r,$uri,'portfolio');
582: }
583: elsif ($env{'form.keywords'}) {
584: &save_instructor_metadata($r);
585: &select_course($r);
586: } else {
587: &present_editable_metadata($r,$uri,'portfolio');
588: &select_course($r);
589: }
590:
591: } elsif ($uri=~/^\/\~/) {
592: # Construction space
593: $r->print(&Apache::loncommon::bodytag
594: ('Edit Catalog Information','','','',$resdomain));
595: &present_editable_metadata($r,$uri);
596: } else {
597: $r->print(&Apache::loncommon::bodytag
598: ('Catalog Information','','','',$resdomain));
599: &present_uneditable_metadata($r,$uri);
600: }
601: $r->print('</body></html>');
602: return OK;
603: }
604:
605: #####################################################
606: #####################################################
607: ### ###
608: ### Report Bombs ###
609: ### ###
610: #####################################################
611: #####################################################
612: sub report_bombs {
613: my ($r,$uri) = @_;
614: # Set document type
615: $uri =~ s:/adm/bombs/::;
616: $uri = &Apache::lonnet::declutter($uri);
617: $r->print('<h1>'.&Apache::lonnet::clutter($uri).'</h1>');
618: my ($domain,$author)=($uri=~/^(\w+)\/(\w+)\//);
619: if (&Apache::loncacc::constructaccess('/~'.$author.'/',$domain)) {
620: if ($env{'form.clearbombs'}) {
621: &Apache::lonmsg::clear_author_res_msg($uri);
622: }
623: my $clear=&mt('Clear all Messages in Subdirectory');
624: $r->print(<<ENDCLEAR);
625: <form method="post">
626: <input type="submit" name="clearbombs" value="$clear" />
627: </form>
628: ENDCLEAR
629: my %brokenurls =
630: &Apache::lonmsg::all_url_author_res_msg($author,$domain);
631: foreach (sort(keys(%brokenurls))) {
632: if ($_=~/^\Q$uri\E/) {
633: $r->print
634: ('<a href="'.&Apache::lonnet::clutter($_).'">'.$_.'</a>'.
635: &Apache::lonmsg::retrieve_author_res_msg($_).
636: '<hr />');
637: }
638: }
639: } else {
640: $r->print(&mt('Not authorized'));
641: }
642: return;
643: }
644:
645: #####################################################
646: #####################################################
647: ### ###
648: ### Uneditable Metadata Display ###
649: ### ###
650: #####################################################
651: #####################################################
652: sub present_uneditable_metadata {
653: my ($r,$uri) = @_;
654: #
655: my %content=();
656: # Read file
657: foreach (split(/\,/,&Apache::lonnet::metadata($uri,'keys'))) {
658: $content{$_}=&Apache::lonnet::metadata($uri,$_);
659: }
660: # Render Output
661: # displayed url
662: my ($thisversion)=($uri=~/\.(\d+)\.(\w+)\.meta$/);
663: $uri=~s/\.meta$//;
664: my $disuri=&Apache::lonnet::clutter($uri);
665: # version
666: my $currentversion=&Apache::lonnet::getversion($disuri);
667: my $versiondisplay='';
668: if ($thisversion) {
669: $versiondisplay=&mt('Version').': '.$thisversion.
670: ' ('.&mt('most recent version').': '.
671: ($currentversion>0 ?
672: $currentversion :
673: &mt('information not available')).')';
674: } else {
675: $versiondisplay='Version: '.$currentversion;
676: }
677: # crumbify displayed URL uri target prefix form size
678: $disuri=&Apache::lonhtmlcommon::crumbs($disuri,undef, undef, undef,'+1');
679: $disuri =~ s:<br />::g;
680: # obsolete
681: my $obsolete=$content{'obsolete'};
682: my $obsoletewarning='';
683: if (($obsolete) && ($env{'user.adv'})) {
684: $obsoletewarning='<p><font color="red">'.
685: &mt('This resource has been marked obsolete by the author(s)').
686: '</font></p>';
687: }
688: #
689: my %lt=&fieldnames();
690: my $table='';
691: my $title = $content{'title'};
692: if (! defined($title)) {
693: $title = 'Untitled Resource';
694: }
695: foreach ('title',
696: 'author',
697: 'subject',
698: 'keywords',
699: 'notes',
700: 'abstract',
701: 'lowestgradelevel',
702: 'highestgradelevel',
703: 'standards',
704: 'mime',
705: 'language',
706: 'creationdate',
707: 'lastrevisiondate',
708: 'owner',
709: 'copyright',
710: 'customdistributionfile',
711: 'sourceavail',
712: 'sourcerights',
713: 'obsolete',
714: 'obsoletereplacement') {
715: $table.='<tr><td bgcolor="#AAAAAA">'.$lt{$_}.
716: '</td><td bgcolor="#CCCCCC">'.
717: &prettyprint($_,$content{$_}).'</td></tr>';
718: delete $content{$_};
719: }
720: #
721: $r->print(<<ENDHEAD);
722: <h2>$title</h2>
723: <p>
724: $disuri<br />
725: $obsoletewarning
726: $versiondisplay
727: </p>
728: <table cellspacing="2" border="0">
729: $table
730: </table>
731: ENDHEAD
732: if ($env{'user.adv'}) {
733: &print_dynamic_metadata($r,$uri,\%content);
734: }
735: return;
736: }
737:
738: sub print_dynamic_metadata {
739: my ($r,$uri,$content) = @_;
740: #
741: my %content = %$content;
742: my %lt=&fieldnames();
743: #
744: my $description = 'Dynamic Metadata (updated periodically)';
745: $r->print('<h3>'.&mt($description).'</h3>'.
746: &mt('Processing'));
747: $r->rflush();
748: my %items=&fieldnames();
749: my %dynmeta=&dynamicmeta($uri);
750: #
751: # General Access and Usage Statistics
752: if (exists($dynmeta{'count'}) ||
753: exists($dynmeta{'sequsage'}) ||
754: exists($dynmeta{'comefrom'}) ||
755: exists($dynmeta{'goto'}) ||
756: exists($dynmeta{'course'})) {
757: $r->print('<h4>'.&mt('Access and Usage Statistics').'</h4>'.
758: '<table cellspacing="2" border="0">');
759: foreach ('count',
760: 'sequsage','sequsage_list',
761: 'comefrom','comefrom_list',
762: 'goto','goto_list',
763: 'course','course_list') {
764: $r->print('<tr><td bgcolor="#AAAAAA">'.$lt{$_}.'</td>'.
765: '<td bgcolor="#CCCCCC">'.
766: &prettyprint($_,$dynmeta{$_})."</td></tr>\n");
767: }
768: $r->print('</table>');
769: } else {
770: $r->print('<h4>'.&mt('No Access or Usages Statistics are available for this resource.').'</h4>');
771: }
772: #
773: # Assessment statistics
774: if ($uri=~/\.(problem|exam|quiz|assess|survey|form)$/) {
775: if (exists($dynmeta{'stdno'}) ||
776: exists($dynmeta{'avetries'}) ||
777: exists($dynmeta{'difficulty'}) ||
778: exists($dynmeta{'disc'})) {
779: # This is an assessment, print assessment data
780: $r->print('<h4>'.
781: &mt('Overall Assessment Statistical Data').
782: '</h4>'.
783: '<table cellspacing="2" border="0">');
784: $r->print('<tr><td bgcolor="#AAAAAA">'.$lt{'stdno'}.'</td>'.
785: '<td bgcolor="#CCCCCC">'.
786: &prettyprint('stdno',$dynmeta{'stdno'}).
787: '</td>'."</tr>\n");
788: foreach ('avetries','difficulty','disc') {
789: $r->print('<tr><td bgcolor="#AAAAAA">'.$lt{$_}.'</td>'.
790: '<td bgcolor="#CCCCCC">'.
791: &prettyprint($_,sprintf('%5.2f',$dynmeta{$_})).
792: '</td>'."</tr>\n");
793: }
794: $r->print('</table>');
795: }
796: if (exists($dynmeta{'stats'})) {
797: #
798: # New assessment statistics
799: $r->print('<h4>'.
800: &mt('Detailed Assessment Statistical Data').
801: '</h4>');
802: my $table = '<table cellspacing="2" border="0">'.
803: '<tr>'.
804: '<th>Course</th>'.
805: '<th>Section(s)</th>'.
806: '<th>Num Students</th>'.
807: '<th>Mean Tries</th>'.
808: '<th>Degree of Difficulty</th>'.
809: '<th>Degree of Discrimination</th>'.
810: '<th>Time of computation</th>'.
811: '</tr>'.$/;
812: foreach my $identifier (sort(keys(%{$dynmeta{'stats'}}))) {
813: my $data = $dynmeta{'stats'}->{$identifier};
814: my $course = $data->{'course'};
815: my %courseinfo = &Apache::lonnet::coursedescription($course);
816: if (! exists($courseinfo{'num'}) || $courseinfo{'num'} eq '') {
817: &Apache::lonnet::logthis('lookup for '.$course.' failed');
818: next;
819: }
820: $table .= '<tr>';
821: $table .=
822: '<td><nobr>'.$courseinfo{'description'}.'</nobr></td>';
823: $table .=
824: '<td align="right">'.$data->{'sections'}.'</td>';
825: $table .=
826: '<td align="right">'.$data->{'stdno'}.'</td>';
827: foreach ('avetries','difficulty','disc') {
828: $table .= '<td align="right">';
829: if (exists($data->{$_})) {
830: $table .= sprintf('%.2f',$data->{$_}).' ';
831: } else {
832: $table .= '';
833: }
834: $table .= '</td>';
835: }
836: $table .=
837: '<td><nobr>'.
838: &Apache::lonlocal::locallocaltime($data->{'timestamp'}).
839: '</nobr></td>';
840: $table .=
841: '</tr>'.$/;
842: }
843: $table .= '</table>'.$/;
844: $r->print($table);
845: } else {
846: $r->print('No new dynamic data found.');
847: }
848: } else {
849: $r->print('<h4>'.
850: &mt('No Assessment Statistical Data is available for this resource').
851: '</h4>');
852: }
853:
854: #
855: #
856: if (exists($dynmeta{'clear'}) ||
857: exists($dynmeta{'depth'}) ||
858: exists($dynmeta{'helpful'}) ||
859: exists($dynmeta{'correct'}) ||
860: exists($dynmeta{'technical'})){
861: $r->print('<h4>'.&mt('Evaluation Data').'</h4>'.
862: '<table cellspacing="2" border="0">');
863: foreach ('clear','depth','helpful','correct','technical') {
864: $r->print('<tr><td bgcolor="#AAAAAA">'.$lt{$_}.'</td>'.
865: '<td bgcolor="#CCCCCC">'.
866: &prettyprint($_,$dynmeta{$_})."</td></tr>\n");
867: }
868: $r->print('</table>');
869: } else {
870: $r->print('<h4>'.&mt('No Evaluation Data is available for this resource.').'</h4>');
871: }
872: $uri=~/^\/res\/(\w+)\/(\w+)\//;
873: if ((($env{'user.domain'} eq $1) && ($env{'user.name'} eq $2))
874: || ($env{'user.role.ca./'.$1.'/'.$2})) {
875: if (exists($dynmeta{'comments'})) {
876: $r->print('<h4>'.&mt('Evaluation Comments').' ('.
877: &mt('visible to author and co-authors only').
878: ')</h4>'.
879: '<blockquote>'.$dynmeta{'comments'}.'</blockquote>');
880: } else {
881: $r->print('<h4>'.&mt('There are no Evaluation Comments on this resource.').'</h4>');
882: }
883: my $bombs = &Apache::lonmsg::retrieve_author_res_msg($uri);
884: if (defined($bombs) && $bombs ne '') {
885: $r->print('<a name="bombs" /><h4>'.&mt('Error Messages').' ('.
886: &mt('visible to author and co-authors only').')'.
887: '</h4>'.$bombs);
888: } else {
889: $r->print('<h4>'.&mt('There are currently no Error Messages for this resource.').'</h4>');
890: }
891: }
892: #
893: # All other stuff
894: $r->print('<h3>'.
895: &mt('Additional Metadata (non-standard, parameters, exports)').
896: '</h3><table border="0" cellspacing="1">');
897: foreach (sort(keys(%content))) {
898: my $name=$_;
899: if ($name!~/\.display$/) {
900: my $display=&Apache::lonnet::metadata($uri,
901: $name.'.display');
902: if (! $display) {
903: $display=$name;
904: };
905: my $otherinfo='';
906: foreach ('name','part','type','default') {
907: if (defined(&Apache::lonnet::metadata($uri,
908: $name.'.'.$_))) {
909: $otherinfo.=' '.$_.'='.
910: &Apache::lonnet::metadata($uri,
911: $name.'.'.$_).'; ';
912: }
913: }
914: $r->print('<tr><td bgcolor="#bbccbb"><font size="-1" color="#556655">'.$display.'</font></td><td bgcolor="#ccddcc"><font size="-1" color="#556655">'.$content{$name});
915: if ($otherinfo) {
916: $r->print(' ('.$otherinfo.')');
917: }
918: $r->print("</font></td></tr>\n");
919: }
920: }
921: $r->print("</table>");
922: return;
923: }
924: sub save_instructor_metadata {
925: my ($r) = @_;
926: $r->print('This is the save instructor metadata area<br />');
927: my @words = &Apache::loncommon::get_env_multiple('form.keywords');
928: foreach my $word (@words) {
929: $r->print('You entered:'.$word.'<br />');
930: }
931: return 'ok';
932: }
933: sub present_instructor_metadata {
934: my ($r,$uri, $file_type) = @_;
935: $r->print('This is the instructor metadata area<br />');
936: my @keywords = sort(split /, /,$env{$env{'form.metacourse'}.'.metadata.keywords'});
937: $r->print($env{'form.metacourse'}.'<br />');
938: $r->print('<form method="post" action="" size="3" >');
939: $r->print('<select name="keywords" size="3" multiple>');
940: foreach my $word (@keywords) {
941: $r->print('<option>'.$word.'</option>');
942: }
943: $r->print('</select>');
944: $r->print('<br /><input type="submit" value="Assign Meta-data" />');
945: $r->print('</form>');
946: return 'ok';
947: }
948:
949:
950: #####################################################
951: #####################################################
952: ### ###
953: ### Editable metadata display ###
954: ### ###
955: #####################################################
956: #####################################################
957: sub present_editable_metadata {
958: my ($r,$uri, $file_type) = @_;
959: # Construction Space Call
960: # Header
961: my $disuri=$uri;
962: my $fn=&Apache::lonnet::filelocation('',$uri);
963: $disuri=~s/^\/\~/\/priv\//;
964: $disuri=~s/\.meta$//;
965: my $target=$uri;
966: $target=~s/^\/\~/\/res\/$env{'request.role.domain'}\//;
967: $target=~s/\.meta$//;
968: my $bombs=&Apache::lonmsg::retrieve_author_res_msg($target);
969: if ($bombs) {
970: my $showdel=1;
971: if ($env{'form.delmsg'}) {
972: if (&Apache::lonmsg::del_url_author_res_msg($target) eq 'ok') {
973: $bombs=&mt('Messages deleted.');
974: $showdel=0;
975: } else {
976: $bombs=&mt('Error deleting messages');
977: }
978: }
979: if ($env{'form.clearmsg'}) {
980: my $cleardir=$target;
981: $cleardir=~s/\/[^\/]+$/\//;
982: if (&Apache::lonmsg::clear_author_res_msg($cleardir) eq 'ok') {
983: $bombs=&mt('Messages cleared.');
984: $showdel=0;
985: } else {
986: $bombs=&mt('Error clearing messages');
987: }
988: }
989: my $del=&mt('Delete Messages for this Resource');
990: my $clear=&mt('Clear all Messages in Subdirectory');
991: my $goback=&mt('Back to Source File');
992: $r->print(<<ENDBOMBS);
993: <h1>$disuri</h1>
994: <form method="post" name="defaultmeta">
995: ENDBOMBS
996: if ($showdel) {
997: $r->print(<<ENDDEL);
998: <input type="submit" name="delmsg" value="$del" />
999: <input type="submit" name="clearmsg" value="$clear" />
1000: ENDDEL
1001: } else {
1002: $r->print('<a href="'.$disuri.'" />'.$goback.'</a>');
1003: }
1004: $r->print('<br />'.$bombs);
1005: } else {
1006: my $displayfile='Catalog Information for '.$disuri;
1007: if ($disuri=~/\/default$/) {
1008: my $dir=$disuri;
1009: $dir=~s/default$//;
1010: $displayfile=
1011: &mt('Default Cataloging Information for Directory').' '.
1012: $dir;
1013: }
1014: %Apache::lonpublisher::metadatafields=();
1015: %Apache::lonpublisher::metadatakeys=();
1016: my $result=&Apache::lonnet::getfile($fn);
1017: if ($result == -1){
1018: $r->print('Creating new '.$fn);
1019: } else {
1020: &Apache::lonpublisher::metaeval($result);
1021: }
1022: $r->print(<<ENDEDIT);
1023: <h1>$displayfile</h1>
1024: <form method="post" name="defaultmeta">
1025: ENDEDIT
1026: $r->print('<script language="JavaScript">'.
1027: &Apache::loncommon::browser_and_searcher_javascript().
1028: '</script>');
1029: my %lt=&fieldnames($file_type);
1030: my $output;
1031: my @fields;
1032: if ($file_type eq 'portfolio') {
1033: @fields = ('author','title','subject','keywords','abstract','notes','lowestgradelevel',
1034: 'highestgradelevel');
1035: } else {
1036: @fields = ('author','title','subject','keywords','abstract','notes',
1037: 'copyright','customdistributionfile','language',
1038: 'standards',
1039: 'lowestgradelevel','highestgradelevel','sourceavail','sourcerights',
1040: 'obsolete','obsoletereplacement');
1041: }
1042: foreach (@fields) {
1043: if (defined($env{'form.new_'.$_})) {
1044: $Apache::lonpublisher::metadatafields{$_}=
1045: $env{'form.new_'.$_};
1046: }
1047: if (! $Apache::lonpublisher::metadatafields{'copyright'}) {
1048: $Apache::lonpublisher::metadatafields{'copyright'}=
1049: 'default';
1050: }
1051: $output.=('<p>'.$lt{$_}.': '.
1052: &prettyinput($_,
1053: $Apache::lonpublisher::metadatafields{$_},
1054: 'new_'.$_,'defaultmeta').'</p>');
1055: }
1056: if ($env{'form.store'}) {
1057: my $mfh;
1058: my $formname='store';
1059: my $file_content;
1060: foreach (sort keys %Apache::lonpublisher::metadatafields) {
1061: next if ($_ =~ /\./);
1062: my $unikey=$_;
1063: $unikey=~/^([A-Za-z]+)/;
1064: my $tag=$1;
1065: $tag=~tr/A-Z/a-z/;
1066: $file_content.= "\n\<$tag";
1067: foreach (split(/\,/,
1068: $Apache::lonpublisher::metadatakeys{$unikey})
1069: ) {
1070: my $value=
1071: $Apache::lonpublisher::metadatafields{$unikey.'.'.$_};
1072: $value=~s/\"/\'\'/g;
1073: $file_content.=' '.$_.'="'.$value.'"' ;
1074: # print $mfh ' '.$_.'="'.$value.'"';
1075: }
1076: $file_content.= '>'.
1077: &HTML::Entities::encode
1078: ($Apache::lonpublisher::metadatafields{$unikey},
1079: '<>&"').
1080: '</'.$tag.'>';
1081: }
1082: if ($fn =~ /\/portfolio\//) {
1083: $fn =~ /\/portfolio\/(.*)$/;
1084: my $new_fn = '/'.$1;
1085: $env{'form.'.$formname}=$file_content;
1086: $env{'form.'.$formname.'.filename'}=$new_fn;
1087: &Apache::lonnet::userfileupload('uploaddoc','',
1088: 'portfolio'.$env{'form.currentpath'});
1089: my $status =&Apache::lonnet::userfileupload($formname,'','portfolio');
1090: if (&Apache::lonnet::userfileupload($formname,'','portfolio') eq 'error: no uploaded file') {
1091: $r->print('<p><font color="red">'.
1092: &mt('Could not write metadata').', '.
1093: &mt('FAIL').'</font></p>');
1094: } else {
1095: $r->print('<p><font color="blue">'.&mt('Wrote Metadata').
1096: ' '.&Apache::lonlocal::locallocaltime(time).
1097: '</font></p>');
1098: }
1099: } else {
1100: if (! ($mfh=Apache::File->new('>'.$fn))) {
1101: $r->print('<p><font color="red">'.
1102: &mt('Could not write metadata').', '.
1103: &mt('FAIL').'</font></p>');
1104: } else {
1105: print $mfh $file_content;
1106: $r->print('<p><font color="blue">'.&mt('Wrote Metadata').
1107: ' '.&Apache::lonlocal::locallocaltime(time).
1108: '</font></p>');
1109: }
1110: }
1111: }
1112: $r->print($output.'<br /><input type="submit" name="store" value="'.
1113: &mt('Store Catalog Information').'">');
1114: }
1115: $r->print('</form>');
1116: return;
1117: }
1118:
1119: 1;
1120: __END__
1121:
1122:
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>
![[BACK]](/icons/back.gif){kind=icon}
Return to lonmeta.pm CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [LON-CAPA] / loncom / interface