1: # The LearningOnline Network with CAPA
2: # Metadata display handler
3: #
4: # $Id: lonmeta.pm,v 1.117 2005/10/25 18:46:03 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: 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,$course_key)=@_;
480: if (! defined($size)) {
481: $size = 80;
482: }
483: if (defined($course_key)) {
484: my $stu_add;
485: my $only_one;
486: if ($env{$course_key.'.metadata.'.$_.'.options'} =~ m/stuadd/) {
487: $stu_add = 'true';
488: }
489: if ($env{$course_key.'.metadata.'.$_.'.options'} =~ m/onlyone/) {
490: $only_one = 'true';
491: }
492: if ($type eq 'author') {
493: }
494: if ($type eq 'authorspace') {
495: }
496: if ($type eq 'modifyinguser') {
497: }
498: if ($type eq 'subject') {
499: }
500: if ($type eq 'keywords') {
501: }
502: if ($type eq 'notes') {
503: }
504: if ($type eq 'abstract') {
505: if (($type eq 'lowestgradelevel') ||
506: ($type eq 'highestgradelevel')) {
507: return &Apache::loncommon::select_level_form($value,$fieldname).
508: &relatedfield(0,$relatedsearchflag,$relatedsep);
509: }
510: return();
511: }
512: # Language
513: if ($type eq 'language') {
514: return &selectbox($fieldname,
515: $value,
516: \&Apache::loncommon::languagedescription,
517: (&Apache::loncommon::languageids)).
518: &relatedfield(0,$relatedsearchflag,$relatedsep);
519: }
520: # Copyright
521: if ($type eq 'copyright') {
522: return &selectbox($fieldname,
523: $value,
524: \&Apache::loncommon::copyrightdescription,
525: (&Apache::loncommon::copyrightids)).
526: &relatedfield(0,$relatedsearchflag,$relatedsep);
527: }
528: # Source Copyright
529: if ($type eq 'sourceavail') {
530: return &selectbox($fieldname,
531: $value,
532: \&Apache::loncommon::source_copyrightdescription,
533: (&Apache::loncommon::source_copyrightids)).
534: &relatedfield(0,$relatedsearchflag,$relatedsep);
535: }
536: # Gradelevels
537: if (($type eq 'lowestgradelevel') ||
538: ($type eq 'highestgradelevel')) {
539: return &Apache::loncommon::select_level_form($value,$fieldname).
540: &relatedfield(0,$relatedsearchflag,$relatedsep);
541: }
542: # Obsolete
543: if ($type eq 'obsolete') {
544: return '<input type="checkbox" name="'.$fieldname.'"'.
545: ($value?' checked="1"':'').' />'.
546: &relatedfield(0,$relatedsearchflag,$relatedsep);
547: }
548: # Obsolete replacement file
549: if ($type eq 'obsoletereplacement') {
550: return '<input type="text" name="'.$fieldname.
551: '" size="60" value="'.$value.'" /><a href="javascript:openbrowser'.
552: "('".$formname."','".$fieldname."'".
553: ",'')\">".&mt('Select').'</a>'.
554: &relatedfield(0,$relatedsearchflag,$relatedsep);
555: }
556: # Customdistribution file
557: if ($type eq 'customdistributionfile') {
558: return '<input type="text" name="'.$fieldname.
559: '" size="60" value="'.$value.'" /><a href="javascript:openbrowser'.
560: "('".$formname."','".$fieldname."'".
561: ",'rights')\">".&mt('Select').'</a>'.
562: &relatedfield(0,$relatedsearchflag,$relatedsep);
563: }
564: # Source Customdistribution file
565: if ($type eq 'sourcerights') {
566: return '<input type="text" name="'.$fieldname.
567: '" size="60" value="'.$value.'" /><a href="javascript:openbrowser'.
568: "('".$formname."','".$fieldname."'".
569: ",'rights')\">".&mt('Select').'</a>'.
570: &relatedfield(0,$relatedsearchflag,$relatedsep);
571: }
572: # Dates
573: if (($type eq 'creationdate') ||
574: ($type eq 'lastrevisiondate')) {
575: return
576: &Apache::lonhtmlcommon::date_setter($formname,$fieldname,$value).
577: &relatedfield(0,$relatedsearchflag,$relatedsep);
578: }
579: # No pretty input found
580: $value=~s/^\s+//gs;
581: $value=~s/\s+$//gs;
582: $value=~s/\s+/ /gs;
583: $value=~s/\"/\"\;/gs;
584: return
585: '<input type="text" name="'.$fieldname.'" size="'.$size.'" '.
586: 'value="'.$value.'" />'.
587: &relatedfield(1,$relatedsearchflag,$relatedsep,$fieldname,
588: $relatedvalue);
589: }
590:
591: # Main Handler
592: sub handler {
593: my $r=shift;
594: #
595: my $uri=$r->uri;
596: #
597: # Set document type
598: &Apache::loncommon::content_type($r,'text/html');
599: $r->send_http_header;
600: return OK if $r->header_only;
601: #
602: my ($resdomain,$resuser)=
603: (&Apache::lonnet::declutter($uri)=~/^(\w+)\/(\w+)\//);
604: my $html=&Apache::lonxml::xmlbegin();
605: $r->print($html.'<head><title>'.
606: 'Catalog Information'.
607: '</title></head>');
608: if ($uri=~m:/adm/bombs/(.*)$:) {
609: $r->print(&Apache::loncommon::bodytag('Error Messages'));
610: # Looking for all bombs?
611: &report_bombs($r,$uri);
612: } elsif ($uri=~/\/portfolio\//) {
613: ($resdomain,$resuser)=
614: (&Apache::lonnet::declutter($uri)=~m|^(\w+)/(\w+)/portfolio|);
615: $r->print(&Apache::loncommon::bodytag
616: ('Edit Portfolio File Information','','','',$resdomain));
617: &present_editable_metadata($r,$uri,'portfolio');
618: &select_course($r);
619: } elsif ($uri=~/^\/\~/) {
620: # Construction space
621: $r->print(&Apache::loncommon::bodytag
622: ('Edit Catalog Information','','','',$resdomain));
623: &present_editable_metadata($r,$uri);
624: } else {
625: $r->print(&Apache::loncommon::bodytag
626: ('Catalog Information','','','',$resdomain));
627: &present_uneditable_metadata($r,$uri);
628: }
629: $r->print('</body></html>');
630: return OK;
631: }
632:
633: #####################################################
634: #####################################################
635: ### ###
636: ### Report Bombs ###
637: ### ###
638: #####################################################
639: #####################################################
640: sub report_bombs {
641: my ($r,$uri) = @_;
642: # Set document type
643: $uri =~ s:/adm/bombs/::;
644: $uri = &Apache::lonnet::declutter($uri);
645: $r->print('<h1>'.&Apache::lonnet::clutter($uri).'</h1>');
646: my ($domain,$author)=($uri=~/^(\w+)\/(\w+)\//);
647: if (&Apache::loncacc::constructaccess('/~'.$author.'/',$domain)) {
648: if ($env{'form.clearbombs'}) {
649: &Apache::lonmsg::clear_author_res_msg($uri);
650: }
651: my $clear=&mt('Clear all Messages in Subdirectory');
652: $r->print(<<ENDCLEAR);
653: <form method="post">
654: <input type="submit" name="clearbombs" value="$clear" />
655: </form>
656: ENDCLEAR
657: my %brokenurls =
658: &Apache::lonmsg::all_url_author_res_msg($author,$domain);
659: foreach (sort(keys(%brokenurls))) {
660: if ($_=~/^\Q$uri\E/) {
661: $r->print
662: ('<a href="'.&Apache::lonnet::clutter($_).'">'.$_.'</a>'.
663: &Apache::lonmsg::retrieve_author_res_msg($_).
664: '<hr />');
665: }
666: }
667: } else {
668: $r->print(&mt('Not authorized'));
669: }
670: return;
671: }
672:
673: #####################################################
674: #####################################################
675: ### ###
676: ### Uneditable Metadata Display ###
677: ### ###
678: #####################################################
679: #####################################################
680: sub present_uneditable_metadata {
681: my ($r,$uri) = @_;
682: #
683: my %content=();
684: # Read file
685: foreach (split(/\,/,&Apache::lonnet::metadata($uri,'keys'))) {
686: $content{$_}=&Apache::lonnet::metadata($uri,$_);
687: }
688: # Render Output
689: # displayed url
690: my ($thisversion)=($uri=~/\.(\d+)\.(\w+)\.meta$/);
691: $uri=~s/\.meta$//;
692: my $disuri=&Apache::lonnet::clutter($uri);
693: # version
694: my $currentversion=&Apache::lonnet::getversion($disuri);
695: my $versiondisplay='';
696: if ($thisversion) {
697: $versiondisplay=&mt('Version').': '.$thisversion.
698: ' ('.&mt('most recent version').': '.
699: ($currentversion>0 ?
700: $currentversion :
701: &mt('information not available')).')';
702: } else {
703: $versiondisplay='Version: '.$currentversion;
704: }
705: # crumbify displayed URL uri target prefix form size
706: $disuri=&Apache::lonhtmlcommon::crumbs($disuri,undef, undef, undef,'+1');
707: $disuri =~ s:<br />::g;
708: # obsolete
709: my $obsolete=$content{'obsolete'};
710: my $obsoletewarning='';
711: if (($obsolete) && ($env{'user.adv'})) {
712: $obsoletewarning='<p><font color="red">'.
713: &mt('This resource has been marked obsolete by the author(s)').
714: '</font></p>';
715: }
716: #
717: my %lt=&fieldnames();
718: my $table='';
719: my $title = $content{'title'};
720: if (! defined($title)) {
721: $title = 'Untitled Resource';
722: }
723: foreach ('title',
724: 'author',
725: 'subject',
726: 'keywords',
727: 'notes',
728: 'abstract',
729: 'lowestgradelevel',
730: 'highestgradelevel',
731: 'standards',
732: 'mime',
733: 'language',
734: 'creationdate',
735: 'lastrevisiondate',
736: 'owner',
737: 'copyright',
738: 'customdistributionfile',
739: 'sourceavail',
740: 'sourcerights',
741: 'obsolete',
742: 'obsoletereplacement') {
743: $table.='<tr><td bgcolor="#AAAAAA">'.$lt{$_}.
744: '</td><td bgcolor="#CCCCCC">'.
745: &prettyprint($_,$content{$_}).'</td></tr>';
746: delete $content{$_};
747: }
748: #
749: $r->print(<<ENDHEAD);
750: <h2>$title</h2>
751: <p>
752: $disuri<br />
753: $obsoletewarning
754: $versiondisplay
755: </p>
756: <table cellspacing="2" border="0">
757: $table
758: </table>
759: ENDHEAD
760: if ($env{'user.adv'}) {
761: &print_dynamic_metadata($r,$uri,\%content);
762: }
763: return;
764: }
765:
766: sub print_dynamic_metadata {
767: my ($r,$uri,$content) = @_;
768: #
769: my %content = %$content;
770: my %lt=&fieldnames();
771: #
772: my $description = 'Dynamic Metadata (updated periodically)';
773: $r->print('<h3>'.&mt($description).'</h3>'.
774: &mt('Processing'));
775: $r->rflush();
776: my %items=&fieldnames();
777: my %dynmeta=&dynamicmeta($uri);
778: #
779: # General Access and Usage Statistics
780: if (exists($dynmeta{'count'}) ||
781: exists($dynmeta{'sequsage'}) ||
782: exists($dynmeta{'comefrom'}) ||
783: exists($dynmeta{'goto'}) ||
784: exists($dynmeta{'course'})) {
785: $r->print('<h4>'.&mt('Access and Usage Statistics').'</h4>'.
786: '<table cellspacing="2" border="0">');
787: foreach ('count',
788: 'sequsage','sequsage_list',
789: 'comefrom','comefrom_list',
790: 'goto','goto_list',
791: 'course','course_list') {
792: $r->print('<tr><td bgcolor="#AAAAAA">'.$lt{$_}.'</td>'.
793: '<td bgcolor="#CCCCCC">'.
794: &prettyprint($_,$dynmeta{$_})."</td></tr>\n");
795: }
796: $r->print('</table>');
797: } else {
798: $r->print('<h4>'.&mt('No Access or Usages Statistics are available for this resource.').'</h4>');
799: }
800: #
801: # Assessment statistics
802: if ($uri=~/\.(problem|exam|quiz|assess|survey|form)$/) {
803: if (exists($dynmeta{'stdno'}) ||
804: exists($dynmeta{'avetries'}) ||
805: exists($dynmeta{'difficulty'}) ||
806: exists($dynmeta{'disc'})) {
807: # This is an assessment, print assessment data
808: $r->print('<h4>'.
809: &mt('Overall Assessment Statistical Data').
810: '</h4>'.
811: '<table cellspacing="2" border="0">');
812: $r->print('<tr><td bgcolor="#AAAAAA">'.$lt{'stdno'}.'</td>'.
813: '<td bgcolor="#CCCCCC">'.
814: &prettyprint('stdno',$dynmeta{'stdno'}).
815: '</td>'."</tr>\n");
816: foreach ('avetries','difficulty','disc') {
817: $r->print('<tr><td bgcolor="#AAAAAA">'.$lt{$_}.'</td>'.
818: '<td bgcolor="#CCCCCC">'.
819: &prettyprint($_,sprintf('%5.2f',$dynmeta{$_})).
820: '</td>'."</tr>\n");
821: }
822: $r->print('</table>');
823: }
824: if (exists($dynmeta{'stats'})) {
825: #
826: # New assessment statistics
827: $r->print('<h4>'.
828: &mt('Detailed Assessment Statistical Data').
829: '</h4>');
830: my $table = '<table cellspacing="2" border="0">'.
831: '<tr>'.
832: '<th>Course</th>'.
833: '<th>Section(s)</th>'.
834: '<th>Num Students</th>'.
835: '<th>Mean Tries</th>'.
836: '<th>Degree of Difficulty</th>'.
837: '<th>Degree of Discrimination</th>'.
838: '<th>Time of computation</th>'.
839: '</tr>'.$/;
840: foreach my $identifier (sort(keys(%{$dynmeta{'stats'}}))) {
841: my $data = $dynmeta{'stats'}->{$identifier};
842: my $course = $data->{'course'};
843: my %courseinfo = &Apache::lonnet::coursedescription($course);
844: if (! exists($courseinfo{'num'}) || $courseinfo{'num'} eq '') {
845: &Apache::lonnet::logthis('lookup for '.$course.' failed');
846: next;
847: }
848: $table .= '<tr>';
849: $table .=
850: '<td><nobr>'.$courseinfo{'description'}.'</nobr></td>';
851: $table .=
852: '<td align="right">'.$data->{'sections'}.'</td>';
853: $table .=
854: '<td align="right">'.$data->{'stdno'}.'</td>';
855: foreach ('avetries','difficulty','disc') {
856: $table .= '<td align="right">';
857: if (exists($data->{$_})) {
858: $table .= sprintf('%.2f',$data->{$_}).' ';
859: } else {
860: $table .= '';
861: }
862: $table .= '</td>';
863: }
864: $table .=
865: '<td><nobr>'.
866: &Apache::lonlocal::locallocaltime($data->{'timestamp'}).
867: '</nobr></td>';
868: $table .=
869: '</tr>'.$/;
870: }
871: $table .= '</table>'.$/;
872: $r->print($table);
873: } else {
874: $r->print('No new dynamic data found.');
875: }
876: } else {
877: $r->print('<h4>'.
878: &mt('No Assessment Statistical Data is available for this resource').
879: '</h4>');
880: }
881:
882: #
883: #
884: if (exists($dynmeta{'clear'}) ||
885: exists($dynmeta{'depth'}) ||
886: exists($dynmeta{'helpful'}) ||
887: exists($dynmeta{'correct'}) ||
888: exists($dynmeta{'technical'})){
889: $r->print('<h4>'.&mt('Evaluation Data').'</h4>'.
890: '<table cellspacing="2" border="0">');
891: foreach ('clear','depth','helpful','correct','technical') {
892: $r->print('<tr><td bgcolor="#AAAAAA">'.$lt{$_}.'</td>'.
893: '<td bgcolor="#CCCCCC">'.
894: &prettyprint($_,$dynmeta{$_})."</td></tr>\n");
895: }
896: $r->print('</table>');
897: } else {
898: $r->print('<h4>'.&mt('No Evaluation Data is available for this resource.').'</h4>');
899: }
900: $uri=~/^\/res\/(\w+)\/(\w+)\//;
901: if ((($env{'user.domain'} eq $1) && ($env{'user.name'} eq $2))
902: || ($env{'user.role.ca./'.$1.'/'.$2})) {
903: if (exists($dynmeta{'comments'})) {
904: $r->print('<h4>'.&mt('Evaluation Comments').' ('.
905: &mt('visible to author and co-authors only').
906: ')</h4>'.
907: '<blockquote>'.$dynmeta{'comments'}.'</blockquote>');
908: } else {
909: $r->print('<h4>'.&mt('There are no Evaluation Comments on this resource.').'</h4>');
910: }
911: my $bombs = &Apache::lonmsg::retrieve_author_res_msg($uri);
912: if (defined($bombs) && $bombs ne '') {
913: $r->print('<a name="bombs" /><h4>'.&mt('Error Messages').' ('.
914: &mt('visible to author and co-authors only').')'.
915: '</h4>'.$bombs);
916: } else {
917: $r->print('<h4>'.&mt('There are currently no Error Messages for this resource.').'</h4>');
918: }
919: }
920: #
921: # All other stuff
922: $r->print('<h3>'.
923: &mt('Additional Metadata (non-standard, parameters, exports)').
924: '</h3><table border="0" cellspacing="1">');
925: foreach (sort(keys(%content))) {
926: my $name=$_;
927: if ($name!~/\.display$/) {
928: my $display=&Apache::lonnet::metadata($uri,
929: $name.'.display');
930: if (! $display) {
931: $display=$name;
932: };
933: my $otherinfo='';
934: foreach ('name','part','type','default') {
935: if (defined(&Apache::lonnet::metadata($uri,
936: $name.'.'.$_))) {
937: $otherinfo.=' '.$_.'='.
938: &Apache::lonnet::metadata($uri,
939: $name.'.'.$_).'; ';
940: }
941: }
942: $r->print('<tr><td bgcolor="#bbccbb"><font size="-1" color="#556655">'.$display.'</font></td><td bgcolor="#ccddcc"><font size="-1" color="#556655">'.$content{$name});
943: if ($otherinfo) {
944: $r->print(' ('.$otherinfo.')');
945: }
946: $r->print("</font></td></tr>\n");
947: }
948: }
949: $r->print("</table>");
950: return;
951: }
952:
953:
954:
955: #####################################################
956: #####################################################
957: ### ###
958: ### Editable metadata display ###
959: ### ###
960: #####################################################
961: #####################################################
962: sub present_editable_metadata {
963: my ($r,$uri, $file_type) = @_;
964: # Construction Space Call
965: # Header
966: my $disuri=$uri;
967: my $fn=&Apache::lonnet::filelocation('',$uri);
968: $disuri=~s/^\/\~/\/priv\//;
969: $disuri=~s/\.meta$//;
970: $disuri=~s|^/editupload||;
971: my $target=$uri;
972: $target=~s/^\/\~/\/res\/$env{'request.role.domain'}\//;
973: $target=~s/\.meta$//;
974: my $bombs=&Apache::lonmsg::retrieve_author_res_msg($target);
975: if ($bombs) {
976: my $showdel=1;
977: if ($env{'form.delmsg'}) {
978: if (&Apache::lonmsg::del_url_author_res_msg($target) eq 'ok') {
979: $bombs=&mt('Messages deleted.');
980: $showdel=0;
981: } else {
982: $bombs=&mt('Error deleting messages');
983: }
984: }
985: if ($env{'form.clearmsg'}) {
986: my $cleardir=$target;
987: $cleardir=~s/\/[^\/]+$/\//;
988: if (&Apache::lonmsg::clear_author_res_msg($cleardir) eq 'ok') {
989: $bombs=&mt('Messages cleared.');
990: $showdel=0;
991: } else {
992: $bombs=&mt('Error clearing messages');
993: }
994: }
995: my $del=&mt('Delete Messages for this Resource');
996: my $clear=&mt('Clear all Messages in Subdirectory');
997: my $goback=&mt('Back to Source File');
998: $r->print(<<ENDBOMBS);
999: <h1>$disuri</h1>
1000: <form method="post" name="defaultmeta">
1001: ENDBOMBS
1002: if ($showdel) {
1003: $r->print(<<ENDDEL);
1004: <input type="submit" name="delmsg" value="$del" />
1005: <input type="submit" name="clearmsg" value="$clear" />
1006: ENDDEL
1007: } else {
1008: $r->print('<a href="'.$disuri.'" />'.$goback.'</a>');
1009: }
1010: $r->print('<br />'.$bombs);
1011: } else {
1012: my $displayfile='Catalog Information for '.$disuri;
1013: if ($disuri=~/\/default$/) {
1014: my $dir=$disuri;
1015: $dir=~s/default$//;
1016: $displayfile=
1017: &mt('Default Cataloging Information for Directory').' '.
1018: $dir;
1019: }
1020: %Apache::lonpublisher::metadatafields=();
1021: %Apache::lonpublisher::metadatakeys=();
1022: my $result=&Apache::lonnet::getfile($fn);
1023: if ($result == -1){
1024: $r->print('Creating new '.$disuri);
1025: } else {
1026: &Apache::lonpublisher::metaeval($result);
1027: }
1028: $r->print(<<ENDEDIT);
1029: <h1>$displayfile</h1>
1030: <form method="post" name="defaultmeta">
1031: ENDEDIT
1032: $r->print('<script language="JavaScript">'.
1033: &Apache::loncommon::browser_and_searcher_javascript().
1034: '</script>');
1035: my %lt=&fieldnames($file_type);
1036: my $output;
1037: my @fields;
1038: if ($file_type eq 'portfolio') {
1039: @fields = ('author','title','subject','keywords','abstract','notes','lowestgradelevel',
1040: 'highestgradelevel');
1041: } else {
1042: @fields = ('author','title','subject','keywords','abstract','notes',
1043: 'copyright','customdistributionfile','language',
1044: 'standards',
1045: 'lowestgradelevel','highestgradelevel','sourceavail','sourcerights',
1046: 'obsolete','obsoletereplacement');
1047: }
1048: foreach (@fields) {
1049: if (defined($env{'form.new_'.$_})) {
1050: $Apache::lonpublisher::metadatafields{$_}=
1051: $env{'form.new_'.$_};
1052: }
1053: if (! $Apache::lonpublisher::metadatafields{'copyright'}) {
1054: $Apache::lonpublisher::metadatafields{'copyright'}=
1055: 'default';
1056: }
1057: if ($env{'form.metacourse'}) {
1058: # handle restrictions here
1059: $env{'form.metacourse'} =~ m/(^.+)\.description$/;
1060: my $key_base = $1;
1061: if ($env{$key_base.'.metadata.'.$_.'.options'} =~ m/active/) {
1062: $output.=('<p>'.$lt{$_}.': '.
1063: &prettyinput($_,
1064: $Apache::lonpublisher::metadatafields{$_},
1065: 'new_'.$_,'defaultmeta',undef,undef,undef,undef,$key_base).'</p>');
1066: }
1067: } else {
1068: $output.=('<p>'.$lt{$_}.': '.
1069: &prettyinput($_,
1070: $Apache::lonpublisher::metadatafields{$_},
1071: 'new_'.$_,'defaultmeta').'</p>');
1072: }
1073: }
1074: if ($env{'form.store'}) {
1075: my $mfh;
1076: my $formname='store';
1077: my $file_content;
1078: foreach my $meta_field (keys %env) {
1079: if (&Apache::loncommon::get_env_multiple('form.keywords')) {
1080: $Apache::lonpublisher::metadatafields{'coursekeyword'} =
1081: join (', ', &Apache::loncommon::get_env_multiple('form.keywords'));
1082: }
1083: }
1084: foreach (sort keys %Apache::lonpublisher::metadatafields) {
1085: next if ($_ =~ /\./);
1086: my $unikey=$_;
1087: $unikey=~/^([A-Za-z]+)/;
1088: my $tag=$1;
1089: $tag=~tr/A-Z/a-z/;
1090: $file_content.= "\n\<$tag";
1091: foreach (split(/\,/,
1092: $Apache::lonpublisher::metadatakeys{$unikey})
1093: ) {
1094: my $value=
1095: $Apache::lonpublisher::metadatafields{$unikey.'.'.$_};
1096: $value=~s/\"/\'\'/g;
1097: $file_content.=' '.$_.'="'.$value.'"' ;
1098: # print $mfh ' '.$_.'="'.$value.'"';
1099: }
1100: $file_content.= '>'.
1101: &HTML::Entities::encode
1102: ($Apache::lonpublisher::metadatafields{$unikey},
1103: '<>&"').
1104: '</'.$tag.'>';
1105: }
1106: if ($fn =~ /\/portfolio\//) {
1107: $fn =~ /\/portfolio\/(.*)$/;
1108: my $new_fn = '/'.$1;
1109: $env{'form.'.$formname}=$file_content;
1110: $env{'form.'.$formname.'.filename'}=$new_fn;
1111: &Apache::lonnet::userfileupload('uploaddoc','',
1112: 'portfolio'.$env{'form.currentpath'});
1113: if (&Apache::lonnet::userfileupload($formname,'','portfolio') eq 'error: no uploaded file') {
1114: $r->print('<p><font color="red">'.
1115: &mt('Could not write metadata').', '.
1116: &mt('FAIL').'</font></p>');
1117: } else {
1118: $r->print('<p><font color="blue">'.&mt('Wrote Metadata').
1119: ' '.&Apache::lonlocal::locallocaltime(time).
1120: '</font></p>');
1121: }
1122: } else {
1123: if (! ($mfh=Apache::File->new('>'.$fn))) {
1124: $r->print('<p><font color="red">'.
1125: &mt('Could not write metadata').', '.
1126: &mt('FAIL').'</font></p>');
1127: } else {
1128: print $mfh $file_content;
1129: $r->print('<p><font color="blue">'.&mt('Wrote Metadata').
1130: ' '.&Apache::lonlocal::locallocaltime(time).
1131: '</font></p>');
1132: }
1133: }
1134: }
1135: $r->print($output.'<br /><input type="submit" name="store" value="'.
1136: &mt('Store Catalog Information').'">');
1137: }
1138: $r->print('</form>');
1139: return;
1140: }
1141:
1142: 1;
1143: __END__
1144:
1145:
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