1: # The LearningOnline Network with CAPA
2: # Metadata display handler
3: #
4: # $Id: lonmeta.pm,v 1.115 2005/10/21 19:20:58 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: my %courses;
294: foreach my $key (keys (%env)) {
295: if ($key =~ m/\.metadata\./) {
296: $key =~ m/^course\.(.+)(\.metadata.+$)/;
297: my $course = $1;
298: my $coursekey = 'course.'.$course.'.description';
299: my $value = $env{$coursekey};
300: $courses{$coursekey} = $value;
301: }
302: }
303: $r->print('<h3>Course Related Meta-Data</h3><br />');
304: $r->print('<form action="" method="post">');
305: $r->print('Select your test course<br />');
306: $r->print('<select name="metacourse" >');
307: my $meta_not_found = 1;
308: foreach my $key (keys (%courses)) {
309: if ($meta_not_found) {
310: undef($meta_not_found);
311: $r->print('<h3>Portfolio Meta-Data</h3><br />');
312: $r->print('<form action="" method="post">');
313: $r->print('Select your course<br />');
314: $r->print('<select name="metacourse" >');
315: }
316: $r->print('<option value="'.$key.'">');
317: $r->print($courses{$key});
318: $r->print('</option>');
319: }
320: unless ($meta_not_found) {
321: $r->print('</select><br />');
322: $r->print('<input type="submit" value="Assign Portfolio Metadata" />');
323: $r->print('</form>');
324: }
325: return 'ok';
326: }
327: # Pretty printing of metadata field
328:
329: sub prettyprint {
330: my ($type,$value,$target,$prefix,$form,$noformat)=@_;
331: # $target,$prefix,$form are optional and for filecrumbs only
332: if (! defined($value)) {
333: return ' ';
334: }
335: # Title
336: if ($type eq 'title') {
337: return '<font size="+1" face="arial">'.$value.'</font>';
338: }
339: # Dates
340: if (($type eq 'creationdate') ||
341: ($type eq 'lastrevisiondate')) {
342: return ($value?&Apache::lonlocal::locallocaltime(
343: &Apache::lonmysql::unsqltime($value)):
344: &mt('not available'));
345: }
346: # Language
347: if ($type eq 'language') {
348: return &Apache::loncommon::languagedescription($value);
349: }
350: # Copyright
351: if ($type eq 'copyright') {
352: return &Apache::loncommon::copyrightdescription($value);
353: }
354: # Copyright
355: if ($type eq 'sourceavail') {
356: return &Apache::loncommon::source_copyrightdescription($value);
357: }
358: # MIME
359: if ($type eq 'mime') {
360: return '<img src="'.&Apache::loncommon::icon($value).'" /> '.
361: &Apache::loncommon::filedescription($value);
362: }
363: # Person
364: if (($type eq 'author') ||
365: ($type eq 'owner') ||
366: ($type eq 'modifyinguser') ||
367: ($type eq 'authorspace')) {
368: $value=~s/(\w+)(\:|\@)(\w+)/&authordisplay($1,$3)/gse;
369: return $value;
370: }
371: # Gradelevel
372: if (($type eq 'lowestgradelevel') ||
373: ($type eq 'highestgradelevel')) {
374: return &Apache::loncommon::gradeleveldescription($value);
375: }
376: # Only for advance users below
377: if (! $env{'user.adv'}) {
378: return '<i>- '.&mt('not displayed').' -</i>';
379: }
380: # File
381: if (($type eq 'customdistributionfile') ||
382: ($type eq 'obsoletereplacement') ||
383: ($type eq 'goto_list') ||
384: ($type eq 'comefrom_list') ||
385: ($type eq 'sequsage_list') ||
386: ($type eq 'dependencies')) {
387: return '<ul><font size="-1">'.join("\n",map {
388: my $url = &Apache::lonnet::clutter($_);
389: my $title = &Apache::lonnet::gettitle($url);
390: if ($title eq '') {
391: $title = 'Untitled';
392: if ($url =~ /\.sequence$/) {
393: $title .= ' Sequence';
394: } elsif ($url =~ /\.page$/) {
395: $title .= ' Page';
396: } elsif ($url =~ /\.problem$/) {
397: $title .= ' Problem';
398: } elsif ($url =~ /\.html$/) {
399: $title .= ' HTML document';
400: } elsif ($url =~ m:/syllabus$:) {
401: $title .= ' Syllabus';
402: }
403: }
404: $_ = '<li>'.$title.' '.
405: &Apache::lonhtmlcommon::crumbs($url,$target,$prefix,$form,'-1',$noformat).
406: '</li>'
407: } split(/\s*\,\s*/,$value)).'</ul></font>';
408: }
409: # Evaluations
410: if (($type eq 'clear') ||
411: ($type eq 'depth') ||
412: ($type eq 'helpful') ||
413: ($type eq 'correct') ||
414: ($type eq 'technical')) {
415: return &evalgraph($value);
416: }
417: # Difficulty
418: if ($type eq 'difficulty' || $type eq 'disc') {
419: return &diffgraph($value);
420: }
421: # List of courses
422: if ($type=~/\_list/) {
423: my @Courses = split(/\s*\,\s*/,$value);
424: my $Str;
425: foreach my $course (@Courses) {
426: my %courseinfo = &Apache::lonnet::coursedescription($course);
427: if (! exists($courseinfo{'num'}) || $courseinfo{'num'} eq '') {
428: next;
429: }
430: if ($Str ne '') { $Str .= '<br />'; }
431: $Str .= '<a href="/public/'.$courseinfo{'domain'}.'/'.
432: $courseinfo{'num'}.'/syllabus" target="preview">'.
433: $courseinfo{'description'}.'</a>';
434: }
435: return $Str;
436: }
437: # No pretty print found
438: return $value;
439: }
440:
441: # Pretty input of metadata field
442: sub direct {
443: return shift;
444: }
445:
446: sub selectbox {
447: my ($name,$value,$functionref,@idlist)=@_;
448: if (! defined($functionref)) {
449: $functionref=\&direct;
450: }
451: my $selout='<select name="'.$name.'">';
452: foreach (@idlist) {
453: $selout.='<option value=\''.$_.'\'';
454: if ($_ eq $value) {
455: $selout.=' selected>'.&{$functionref}($_).'</option>';
456: }
457: else {$selout.='>'.&{$functionref}($_).'</option>';}
458: }
459: return $selout.'</select>';
460: }
461:
462: sub relatedfield {
463: my ($show,$relatedsearchflag,$relatedsep,$fieldname,$relatedvalue)=@_;
464: if (! $relatedsearchflag) {
465: return '';
466: }
467: if (! defined($relatedsep)) {
468: $relatedsep=' ';
469: }
470: if (! $show) {
471: return $relatedsep.' ';
472: }
473: return $relatedsep.'<input type="checkbox" name="'.$fieldname.'_related"'.
474: ($relatedvalue?' checked="1"':'').' />';
475: }
476:
477: sub prettyinput {
478: my ($type,$value,$fieldname,$formname,
479: $relatedsearchflag,$relatedsep,$relatedvalue,$size)=@_;
480: if (! defined($size)) {
481: $size = 80;
482: }
483: # Language
484: if ($type eq 'language') {
485: return &selectbox($fieldname,
486: $value,
487: \&Apache::loncommon::languagedescription,
488: (&Apache::loncommon::languageids)).
489: &relatedfield(0,$relatedsearchflag,$relatedsep);
490: }
491: # Copyright
492: if ($type eq 'copyright') {
493: return &selectbox($fieldname,
494: $value,
495: \&Apache::loncommon::copyrightdescription,
496: (&Apache::loncommon::copyrightids)).
497: &relatedfield(0,$relatedsearchflag,$relatedsep);
498: }
499: # Source Copyright
500: if ($type eq 'sourceavail') {
501: return &selectbox($fieldname,
502: $value,
503: \&Apache::loncommon::source_copyrightdescription,
504: (&Apache::loncommon::source_copyrightids)).
505: &relatedfield(0,$relatedsearchflag,$relatedsep);
506: }
507: # Gradelevels
508: if (($type eq 'lowestgradelevel') ||
509: ($type eq 'highestgradelevel')) {
510: return &Apache::loncommon::select_level_form($value,$fieldname).
511: &relatedfield(0,$relatedsearchflag,$relatedsep);
512: }
513: # Obsolete
514: if ($type eq 'obsolete') {
515: return '<input type="checkbox" name="'.$fieldname.'"'.
516: ($value?' checked="1"':'').' />'.
517: &relatedfield(0,$relatedsearchflag,$relatedsep);
518: }
519: # Obsolete replacement file
520: if ($type eq 'obsoletereplacement') {
521: return '<input type="text" name="'.$fieldname.
522: '" size="60" value="'.$value.'" /><a href="javascript:openbrowser'.
523: "('".$formname."','".$fieldname."'".
524: ",'')\">".&mt('Select').'</a>'.
525: &relatedfield(0,$relatedsearchflag,$relatedsep);
526: }
527: # Customdistribution file
528: if ($type eq 'customdistributionfile') {
529: return '<input type="text" name="'.$fieldname.
530: '" size="60" value="'.$value.'" /><a href="javascript:openbrowser'.
531: "('".$formname."','".$fieldname."'".
532: ",'rights')\">".&mt('Select').'</a>'.
533: &relatedfield(0,$relatedsearchflag,$relatedsep);
534: }
535: # Source Customdistribution file
536: if ($type eq 'sourcerights') {
537: return '<input type="text" name="'.$fieldname.
538: '" size="60" value="'.$value.'" /><a href="javascript:openbrowser'.
539: "('".$formname."','".$fieldname."'".
540: ",'rights')\">".&mt('Select').'</a>'.
541: &relatedfield(0,$relatedsearchflag,$relatedsep);
542: }
543: # Dates
544: if (($type eq 'creationdate') ||
545: ($type eq 'lastrevisiondate')) {
546: return
547: &Apache::lonhtmlcommon::date_setter($formname,$fieldname,$value).
548: &relatedfield(0,$relatedsearchflag,$relatedsep);
549: }
550: # No pretty input found
551: $value=~s/^\s+//gs;
552: $value=~s/\s+$//gs;
553: $value=~s/\s+/ /gs;
554: $value=~s/\"/\"\;/gs;
555: return
556: '<input type="text" name="'.$fieldname.'" size="'.$size.'" '.
557: 'value="'.$value.'" />'.
558: &relatedfield(1,$relatedsearchflag,$relatedsep,$fieldname,
559: $relatedvalue);
560: }
561:
562: # Main Handler
563: sub handler {
564: my $r=shift;
565: #
566: my $uri=$r->uri;
567: #
568: # Set document type
569: &Apache::loncommon::content_type($r,'text/html');
570: $r->send_http_header;
571: return OK if $r->header_only;
572: #
573: my ($resdomain,$resuser)=
574: (&Apache::lonnet::declutter($uri)=~/^(\w+)\/(\w+)\//);
575: my $html=&Apache::lonxml::xmlbegin();
576: $r->print($html.'<head><title>'.
577: 'Catalog Information'.
578: '</title></head>');
579: if ($uri=~m:/adm/bombs/(.*)$:) {
580: $r->print(&Apache::loncommon::bodytag('Error Messages'));
581: # Looking for all bombs?
582: &report_bombs($r,$uri);
583: } elsif ($uri=~/\/portfolio\//) {
584: ($resdomain,$resuser)=
585: (&Apache::lonnet::declutter($uri)=~m|^(\w+)/(\w+)/portfolio|);
586: $r->print(&Apache::loncommon::bodytag
587: ('Edit Portfolio File Information','','','',$resdomain));
588: &present_editable_metadata($r,$uri,'portfolio');
589: &select_course($r);
590: } elsif ($uri=~/^\/\~/) {
591: # Construction space
592: $r->print(&Apache::loncommon::bodytag
593: ('Edit Catalog Information','','','',$resdomain));
594: &present_editable_metadata($r,$uri);
595: } else {
596: $r->print(&Apache::loncommon::bodytag
597: ('Catalog Information','','','',$resdomain));
598: &present_uneditable_metadata($r,$uri);
599: }
600: $r->print('</body></html>');
601: return OK;
602: }
603:
604: #####################################################
605: #####################################################
606: ### ###
607: ### Report Bombs ###
608: ### ###
609: #####################################################
610: #####################################################
611: sub report_bombs {
612: my ($r,$uri) = @_;
613: # Set document type
614: $uri =~ s:/adm/bombs/::;
615: $uri = &Apache::lonnet::declutter($uri);
616: $r->print('<h1>'.&Apache::lonnet::clutter($uri).'</h1>');
617: my ($domain,$author)=($uri=~/^(\w+)\/(\w+)\//);
618: if (&Apache::loncacc::constructaccess('/~'.$author.'/',$domain)) {
619: if ($env{'form.clearbombs'}) {
620: &Apache::lonmsg::clear_author_res_msg($uri);
621: }
622: my $clear=&mt('Clear all Messages in Subdirectory');
623: $r->print(<<ENDCLEAR);
624: <form method="post">
625: <input type="submit" name="clearbombs" value="$clear" />
626: </form>
627: ENDCLEAR
628: my %brokenurls =
629: &Apache::lonmsg::all_url_author_res_msg($author,$domain);
630: foreach (sort(keys(%brokenurls))) {
631: if ($_=~/^\Q$uri\E/) {
632: $r->print
633: ('<a href="'.&Apache::lonnet::clutter($_).'">'.$_.'</a>'.
634: &Apache::lonmsg::retrieve_author_res_msg($_).
635: '<hr />');
636: }
637: }
638: } else {
639: $r->print(&mt('Not authorized'));
640: }
641: return;
642: }
643:
644: #####################################################
645: #####################################################
646: ### ###
647: ### Uneditable Metadata Display ###
648: ### ###
649: #####################################################
650: #####################################################
651: sub present_uneditable_metadata {
652: my ($r,$uri) = @_;
653: #
654: my %content=();
655: # Read file
656: foreach (split(/\,/,&Apache::lonnet::metadata($uri,'keys'))) {
657: $content{$_}=&Apache::lonnet::metadata($uri,$_);
658: }
659: # Render Output
660: # displayed url
661: my ($thisversion)=($uri=~/\.(\d+)\.(\w+)\.meta$/);
662: $uri=~s/\.meta$//;
663: my $disuri=&Apache::lonnet::clutter($uri);
664: # version
665: my $currentversion=&Apache::lonnet::getversion($disuri);
666: my $versiondisplay='';
667: if ($thisversion) {
668: $versiondisplay=&mt('Version').': '.$thisversion.
669: ' ('.&mt('most recent version').': '.
670: ($currentversion>0 ?
671: $currentversion :
672: &mt('information not available')).')';
673: } else {
674: $versiondisplay='Version: '.$currentversion;
675: }
676: # crumbify displayed URL uri target prefix form size
677: $disuri=&Apache::lonhtmlcommon::crumbs($disuri,undef, undef, undef,'+1');
678: $disuri =~ s:<br />::g;
679: # obsolete
680: my $obsolete=$content{'obsolete'};
681: my $obsoletewarning='';
682: if (($obsolete) && ($env{'user.adv'})) {
683: $obsoletewarning='<p><font color="red">'.
684: &mt('This resource has been marked obsolete by the author(s)').
685: '</font></p>';
686: }
687: #
688: my %lt=&fieldnames();
689: my $table='';
690: my $title = $content{'title'};
691: if (! defined($title)) {
692: $title = 'Untitled Resource';
693: }
694: foreach ('title',
695: 'author',
696: 'subject',
697: 'keywords',
698: 'notes',
699: 'abstract',
700: 'lowestgradelevel',
701: 'highestgradelevel',
702: 'standards',
703: 'mime',
704: 'language',
705: 'creationdate',
706: 'lastrevisiondate',
707: 'owner',
708: 'copyright',
709: 'customdistributionfile',
710: 'sourceavail',
711: 'sourcerights',
712: 'obsolete',
713: 'obsoletereplacement') {
714: $table.='<tr><td bgcolor="#AAAAAA">'.$lt{$_}.
715: '</td><td bgcolor="#CCCCCC">'.
716: &prettyprint($_,$content{$_}).'</td></tr>';
717: delete $content{$_};
718: }
719: #
720: $r->print(<<ENDHEAD);
721: <h2>$title</h2>
722: <p>
723: $disuri<br />
724: $obsoletewarning
725: $versiondisplay
726: </p>
727: <table cellspacing="2" border="0">
728: $table
729: </table>
730: ENDHEAD
731: if ($env{'user.adv'}) {
732: &print_dynamic_metadata($r,$uri,\%content);
733: }
734: return;
735: }
736:
737: sub print_dynamic_metadata {
738: my ($r,$uri,$content) = @_;
739: #
740: my %content = %$content;
741: my %lt=&fieldnames();
742: #
743: my $description = 'Dynamic Metadata (updated periodically)';
744: $r->print('<h3>'.&mt($description).'</h3>'.
745: &mt('Processing'));
746: $r->rflush();
747: my %items=&fieldnames();
748: my %dynmeta=&dynamicmeta($uri);
749: #
750: # General Access and Usage Statistics
751: if (exists($dynmeta{'count'}) ||
752: exists($dynmeta{'sequsage'}) ||
753: exists($dynmeta{'comefrom'}) ||
754: exists($dynmeta{'goto'}) ||
755: exists($dynmeta{'course'})) {
756: $r->print('<h4>'.&mt('Access and Usage Statistics').'</h4>'.
757: '<table cellspacing="2" border="0">');
758: foreach ('count',
759: 'sequsage','sequsage_list',
760: 'comefrom','comefrom_list',
761: 'goto','goto_list',
762: 'course','course_list') {
763: $r->print('<tr><td bgcolor="#AAAAAA">'.$lt{$_}.'</td>'.
764: '<td bgcolor="#CCCCCC">'.
765: &prettyprint($_,$dynmeta{$_})."</td></tr>\n");
766: }
767: $r->print('</table>');
768: } else {
769: $r->print('<h4>'.&mt('No Access or Usages Statistics are available for this resource.').'</h4>');
770: }
771: #
772: # Assessment statistics
773: if ($uri=~/\.(problem|exam|quiz|assess|survey|form)$/) {
774: if (exists($dynmeta{'stdno'}) ||
775: exists($dynmeta{'avetries'}) ||
776: exists($dynmeta{'difficulty'}) ||
777: exists($dynmeta{'disc'})) {
778: # This is an assessment, print assessment data
779: $r->print('<h4>'.
780: &mt('Overall Assessment Statistical Data').
781: '</h4>'.
782: '<table cellspacing="2" border="0">');
783: $r->print('<tr><td bgcolor="#AAAAAA">'.$lt{'stdno'}.'</td>'.
784: '<td bgcolor="#CCCCCC">'.
785: &prettyprint('stdno',$dynmeta{'stdno'}).
786: '</td>'."</tr>\n");
787: foreach ('avetries','difficulty','disc') {
788: $r->print('<tr><td bgcolor="#AAAAAA">'.$lt{$_}.'</td>'.
789: '<td bgcolor="#CCCCCC">'.
790: &prettyprint($_,sprintf('%5.2f',$dynmeta{$_})).
791: '</td>'."</tr>\n");
792: }
793: $r->print('</table>');
794: }
795: if (exists($dynmeta{'stats'})) {
796: #
797: # New assessment statistics
798: $r->print('<h4>'.
799: &mt('Detailed Assessment Statistical Data').
800: '</h4>');
801: my $table = '<table cellspacing="2" border="0">'.
802: '<tr>'.
803: '<th>Course</th>'.
804: '<th>Section(s)</th>'.
805: '<th>Num Students</th>'.
806: '<th>Mean Tries</th>'.
807: '<th>Degree of Difficulty</th>'.
808: '<th>Degree of Discrimination</th>'.
809: '<th>Time of computation</th>'.
810: '</tr>'.$/;
811: foreach my $identifier (sort(keys(%{$dynmeta{'stats'}}))) {
812: my $data = $dynmeta{'stats'}->{$identifier};
813: my $course = $data->{'course'};
814: my %courseinfo = &Apache::lonnet::coursedescription($course);
815: if (! exists($courseinfo{'num'}) || $courseinfo{'num'} eq '') {
816: &Apache::lonnet::logthis('lookup for '.$course.' failed');
817: next;
818: }
819: $table .= '<tr>';
820: $table .=
821: '<td><nobr>'.$courseinfo{'description'}.'</nobr></td>';
822: $table .=
823: '<td align="right">'.$data->{'sections'}.'</td>';
824: $table .=
825: '<td align="right">'.$data->{'stdno'}.'</td>';
826: foreach ('avetries','difficulty','disc') {
827: $table .= '<td align="right">';
828: if (exists($data->{$_})) {
829: $table .= sprintf('%.2f',$data->{$_}).' ';
830: } else {
831: $table .= '';
832: }
833: $table .= '</td>';
834: }
835: $table .=
836: '<td><nobr>'.
837: &Apache::lonlocal::locallocaltime($data->{'timestamp'}).
838: '</nobr></td>';
839: $table .=
840: '</tr>'.$/;
841: }
842: $table .= '</table>'.$/;
843: $r->print($table);
844: } else {
845: $r->print('No new dynamic data found.');
846: }
847: } else {
848: $r->print('<h4>'.
849: &mt('No Assessment Statistical Data is available for this resource').
850: '</h4>');
851: }
852:
853: #
854: #
855: if (exists($dynmeta{'clear'}) ||
856: exists($dynmeta{'depth'}) ||
857: exists($dynmeta{'helpful'}) ||
858: exists($dynmeta{'correct'}) ||
859: exists($dynmeta{'technical'})){
860: $r->print('<h4>'.&mt('Evaluation Data').'</h4>'.
861: '<table cellspacing="2" border="0">');
862: foreach ('clear','depth','helpful','correct','technical') {
863: $r->print('<tr><td bgcolor="#AAAAAA">'.$lt{$_}.'</td>'.
864: '<td bgcolor="#CCCCCC">'.
865: &prettyprint($_,$dynmeta{$_})."</td></tr>\n");
866: }
867: $r->print('</table>');
868: } else {
869: $r->print('<h4>'.&mt('No Evaluation Data is available for this resource.').'</h4>');
870: }
871: $uri=~/^\/res\/(\w+)\/(\w+)\//;
872: if ((($env{'user.domain'} eq $1) && ($env{'user.name'} eq $2))
873: || ($env{'user.role.ca./'.$1.'/'.$2})) {
874: if (exists($dynmeta{'comments'})) {
875: $r->print('<h4>'.&mt('Evaluation Comments').' ('.
876: &mt('visible to author and co-authors only').
877: ')</h4>'.
878: '<blockquote>'.$dynmeta{'comments'}.'</blockquote>');
879: } else {
880: $r->print('<h4>'.&mt('There are no Evaluation Comments on this resource.').'</h4>');
881: }
882: my $bombs = &Apache::lonmsg::retrieve_author_res_msg($uri);
883: if (defined($bombs) && $bombs ne '') {
884: $r->print('<a name="bombs" /><h4>'.&mt('Error Messages').' ('.
885: &mt('visible to author and co-authors only').')'.
886: '</h4>'.$bombs);
887: } else {
888: $r->print('<h4>'.&mt('There are currently no Error Messages for this resource.').'</h4>');
889: }
890: }
891: #
892: # All other stuff
893: $r->print('<h3>'.
894: &mt('Additional Metadata (non-standard, parameters, exports)').
895: '</h3><table border="0" cellspacing="1">');
896: foreach (sort(keys(%content))) {
897: my $name=$_;
898: if ($name!~/\.display$/) {
899: my $display=&Apache::lonnet::metadata($uri,
900: $name.'.display');
901: if (! $display) {
902: $display=$name;
903: };
904: my $otherinfo='';
905: foreach ('name','part','type','default') {
906: if (defined(&Apache::lonnet::metadata($uri,
907: $name.'.'.$_))) {
908: $otherinfo.=' '.$_.'='.
909: &Apache::lonnet::metadata($uri,
910: $name.'.'.$_).'; ';
911: }
912: }
913: $r->print('<tr><td bgcolor="#bbccbb"><font size="-1" color="#556655">'.$display.'</font></td><td bgcolor="#ccddcc"><font size="-1" color="#556655">'.$content{$name});
914: if ($otherinfo) {
915: $r->print(' ('.$otherinfo.')');
916: }
917: $r->print("</font></td></tr>\n");
918: }
919: }
920: $r->print("</table>");
921: return;
922: }
923:
924:
925:
926: #####################################################
927: #####################################################
928: ### ###
929: ### Editable metadata display ###
930: ### ###
931: #####################################################
932: #####################################################
933: sub present_editable_metadata {
934: my ($r,$uri, $file_type) = @_;
935: # Construction Space Call
936: # Header
937: my $disuri=$uri;
938: my $fn=&Apache::lonnet::filelocation('',$uri);
939: $disuri=~s/^\/\~/\/priv\//;
940: $disuri=~s/\.meta$//;
941: $disuri=~s|^/editupload||;
942: my $target=$uri;
943: $target=~s/^\/\~/\/res\/$env{'request.role.domain'}\//;
944: $target=~s/\.meta$//;
945: my $bombs=&Apache::lonmsg::retrieve_author_res_msg($target);
946: if ($bombs) {
947: my $showdel=1;
948: if ($env{'form.delmsg'}) {
949: if (&Apache::lonmsg::del_url_author_res_msg($target) eq 'ok') {
950: $bombs=&mt('Messages deleted.');
951: $showdel=0;
952: } else {
953: $bombs=&mt('Error deleting messages');
954: }
955: }
956: if ($env{'form.clearmsg'}) {
957: my $cleardir=$target;
958: $cleardir=~s/\/[^\/]+$/\//;
959: if (&Apache::lonmsg::clear_author_res_msg($cleardir) eq 'ok') {
960: $bombs=&mt('Messages cleared.');
961: $showdel=0;
962: } else {
963: $bombs=&mt('Error clearing messages');
964: }
965: }
966: my $del=&mt('Delete Messages for this Resource');
967: my $clear=&mt('Clear all Messages in Subdirectory');
968: my $goback=&mt('Back to Source File');
969: $r->print(<<ENDBOMBS);
970: <h1>$disuri</h1>
971: <form method="post" name="defaultmeta">
972: ENDBOMBS
973: if ($showdel) {
974: $r->print(<<ENDDEL);
975: <input type="submit" name="delmsg" value="$del" />
976: <input type="submit" name="clearmsg" value="$clear" />
977: ENDDEL
978: } else {
979: $r->print('<a href="'.$disuri.'" />'.$goback.'</a>');
980: }
981: $r->print('<br />'.$bombs);
982: } else {
983: my $displayfile='Catalog Information for '.$disuri;
984: if ($disuri=~/\/default$/) {
985: my $dir=$disuri;
986: $dir=~s/default$//;
987: $displayfile=
988: &mt('Default Cataloging Information for Directory').' '.
989: $dir;
990: }
991: %Apache::lonpublisher::metadatafields=();
992: %Apache::lonpublisher::metadatakeys=();
993: my $result=&Apache::lonnet::getfile($fn);
994: if ($result == -1){
995: $r->print('Creating new '.$disuri);
996: } else {
997: &Apache::lonpublisher::metaeval($result);
998: }
999: $r->print(<<ENDEDIT);
1000: <h1>$displayfile</h1>
1001: <form method="post" name="defaultmeta">
1002: ENDEDIT
1003: $r->print('<script language="JavaScript">'.
1004: &Apache::loncommon::browser_and_searcher_javascript().
1005: '</script>');
1006: my %lt=&fieldnames($file_type);
1007: my $output;
1008: my @fields;
1009: if ($file_type eq 'portfolio') {
1010: @fields = ('author','title','subject','keywords','abstract','notes','lowestgradelevel',
1011: 'highestgradelevel');
1012: } else {
1013: @fields = ('author','title','subject','keywords','abstract','notes',
1014: 'copyright','customdistributionfile','language',
1015: 'standards',
1016: 'lowestgradelevel','highestgradelevel','sourceavail','sourcerights',
1017: 'obsolete','obsoletereplacement');
1018: }
1019: foreach (@fields) {
1020: if (defined($env{'form.new_'.$_})) {
1021: $Apache::lonpublisher::metadatafields{$_}=
1022: $env{'form.new_'.$_};
1023: }
1024: if (! $Apache::lonpublisher::metadatafields{'copyright'}) {
1025: $Apache::lonpublisher::metadatafields{'copyright'}=
1026: 'default';
1027: }
1028: if ($env{'form.metacourse'}) {
1029: # handle restrictions here
1030: $env{'form.metacourse'} =~ m/(^.+)\.description$/;
1031: my $key_base = $1;
1032: if ($env{$key_base.'.metadata.'.$_.'.options'} =~ m/active/) {
1033: $output.=('<p>'.$lt{$_}.': '.
1034: &prettyinput($_,
1035: $Apache::lonpublisher::metadatafields{$_},
1036: 'new_'.$_,'defaultmeta').'</p>');
1037: }
1038: } else {
1039: $output.=('<p>'.$lt{$_}.': '.
1040: &prettyinput($_,
1041: $Apache::lonpublisher::metadatafields{$_},
1042: 'new_'.$_,'defaultmeta').'</p>');
1043: }
1044: }
1045: if ($env{'form.store'}) {
1046: my $mfh;
1047: my $formname='store';
1048: my $file_content;
1049: foreach my $meta_field (keys %env) {
1050: if (&Apache::loncommon::get_env_multiple('form.keywords')) {
1051: $Apache::lonpublisher::metadatafields{'coursekeyword'} =
1052: join (', ', &Apache::loncommon::get_env_multiple('form.keywords'));
1053: }
1054: }
1055: foreach (sort keys %Apache::lonpublisher::metadatafields) {
1056: next if ($_ =~ /\./);
1057: my $unikey=$_;
1058: $unikey=~/^([A-Za-z]+)/;
1059: my $tag=$1;
1060: $tag=~tr/A-Z/a-z/;
1061: $file_content.= "\n\<$tag";
1062: foreach (split(/\,/,
1063: $Apache::lonpublisher::metadatakeys{$unikey})
1064: ) {
1065: my $value=
1066: $Apache::lonpublisher::metadatafields{$unikey.'.'.$_};
1067: $value=~s/\"/\'\'/g;
1068: $file_content.=' '.$_.'="'.$value.'"' ;
1069: # print $mfh ' '.$_.'="'.$value.'"';
1070: }
1071: $file_content.= '>'.
1072: &HTML::Entities::encode
1073: ($Apache::lonpublisher::metadatafields{$unikey},
1074: '<>&"').
1075: '</'.$tag.'>';
1076: }
1077: if ($fn =~ /\/portfolio\//) {
1078: $fn =~ /\/portfolio\/(.*)$/;
1079: my $new_fn = '/'.$1;
1080: $env{'form.'.$formname}=$file_content;
1081: $env{'form.'.$formname.'.filename'}=$new_fn;
1082: &Apache::lonnet::userfileupload('uploaddoc','',
1083: 'portfolio'.$env{'form.currentpath'});
1084: if (&Apache::lonnet::userfileupload($formname,'','portfolio') eq 'error: no uploaded file') {
1085: $r->print('<p><font color="red">'.
1086: &mt('Could not write metadata').', '.
1087: &mt('FAIL').'</font></p>');
1088: } else {
1089: $r->print('<p><font color="blue">'.&mt('Wrote Metadata').
1090: ' '.&Apache::lonlocal::locallocaltime(time).
1091: '</font></p>');
1092: }
1093: } else {
1094: if (! ($mfh=Apache::File->new('>'.$fn))) {
1095: $r->print('<p><font color="red">'.
1096: &mt('Could not write metadata').', '.
1097: &mt('FAIL').'</font></p>');
1098: } else {
1099: print $mfh $file_content;
1100: $r->print('<p><font color="blue">'.&mt('Wrote Metadata').
1101: ' '.&Apache::lonlocal::locallocaltime(time).
1102: '</font></p>');
1103: }
1104: }
1105: }
1106: $r->print($output.'<br /><input type="submit" name="store" value="'.
1107: &mt('Store Catalog Information').'">');
1108: }
1109: $r->print('</form>');
1110: return;
1111: }
1112:
1113: 1;
1114: __END__
1115:
1116:
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