1: # The LearningOnline Network with CAPA
2: # Metadata display handler
3: #
4: # $Id: lonmeta.pm,v 1.119 2005/10/26 23:37:51 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,$course_key)=@_;
480: if (! defined($size)) {
481: $size = 80;
482: }
483: if (defined($course_key)) {
484: my $stu_add;
485: my $only_one;
486: my $values = $env{$course_key.'.metadata.'.$_.'.values'};
487: if ($env{$course_key.'.metadata.'.$_.'.options'} =~ m/stuadd/) {
488: $stu_add = 'true';
489: }
490: if ($env{$course_key.'.metadata.'.$_.'.options'} =~ m/onlyone/) {
491: $only_one = 'true';
492: }
493: if ($type eq 'author') {
494: }
495: if ($type eq 'authorspace') {
496: }
497: if ($type eq 'modifyinguser') {
498: }
499: if ($type eq 'subject') {
500: }
501: if ($type eq 'keywords') {
502: my %hash;
503: my $def;
504: foreach (split(/,/,$values)) {
505: $hash{$_} = $_;
506: }
507: if ($only_one) {
508: return(&Apache::loncommon::select_form($def,'new_keywords',%hash));
509: } else {
510: return(&Apache::loncommon::multiple_select_form('new_keywords',undef,undef,%hash));
511: }
512: }
513: if ($type eq 'notes') {
514: }
515: if ($type eq 'abstract') {
516: }
517:
518: if (($type eq 'lowestgradelevel') ||
519: ($type eq 'highestgradelevel')) {
520: return &Apache::loncommon::select_level_form($value,$fieldname).
521: &relatedfield(0,$relatedsearchflag,$relatedsep);
522: }
523: return();
524: }
525: # Language
526: if ($type eq 'language') {
527: return &selectbox($fieldname,
528: $value,
529: \&Apache::loncommon::languagedescription,
530: (&Apache::loncommon::languageids)).
531: &relatedfield(0,$relatedsearchflag,$relatedsep);
532: }
533: # Copyright
534: if ($type eq 'copyright') {
535: return &selectbox($fieldname,
536: $value,
537: \&Apache::loncommon::copyrightdescription,
538: (&Apache::loncommon::copyrightids)).
539: &relatedfield(0,$relatedsearchflag,$relatedsep);
540: }
541: # Source Copyright
542: if ($type eq 'sourceavail') {
543: return &selectbox($fieldname,
544: $value,
545: \&Apache::loncommon::source_copyrightdescription,
546: (&Apache::loncommon::source_copyrightids)).
547: &relatedfield(0,$relatedsearchflag,$relatedsep);
548: }
549: # Gradelevels
550: if (($type eq 'lowestgradelevel') ||
551: ($type eq 'highestgradelevel')) {
552: return &Apache::loncommon::select_level_form($value,$fieldname).
553: &relatedfield(0,$relatedsearchflag,$relatedsep);
554: }
555: # Obsolete
556: if ($type eq 'obsolete') {
557: return '<input type="checkbox" name="'.$fieldname.'"'.
558: ($value?' checked="1"':'').' />'.
559: &relatedfield(0,$relatedsearchflag,$relatedsep);
560: }
561: # Obsolete replacement file
562: if ($type eq 'obsoletereplacement') {
563: return '<input type="text" name="'.$fieldname.
564: '" size="60" value="'.$value.'" /><a href="javascript:openbrowser'.
565: "('".$formname."','".$fieldname."'".
566: ",'')\">".&mt('Select').'</a>'.
567: &relatedfield(0,$relatedsearchflag,$relatedsep);
568: }
569: # Customdistribution file
570: if ($type eq 'customdistributionfile') {
571: return '<input type="text" name="'.$fieldname.
572: '" size="60" value="'.$value.'" /><a href="javascript:openbrowser'.
573: "('".$formname."','".$fieldname."'".
574: ",'rights')\">".&mt('Select').'</a>'.
575: &relatedfield(0,$relatedsearchflag,$relatedsep);
576: }
577: # Source Customdistribution file
578: if ($type eq 'sourcerights') {
579: return '<input type="text" name="'.$fieldname.
580: '" size="60" value="'.$value.'" /><a href="javascript:openbrowser'.
581: "('".$formname."','".$fieldname."'".
582: ",'rights')\">".&mt('Select').'</a>'.
583: &relatedfield(0,$relatedsearchflag,$relatedsep);
584: }
585: # Dates
586: if (($type eq 'creationdate') ||
587: ($type eq 'lastrevisiondate')) {
588: return
589: &Apache::lonhtmlcommon::date_setter($formname,$fieldname,$value).
590: &relatedfield(0,$relatedsearchflag,$relatedsep);
591: }
592: # No pretty input found
593: $value=~s/^\s+//gs;
594: $value=~s/\s+$//gs;
595: $value=~s/\s+/ /gs;
596: $value=~s/\"/\"\;/gs;
597: return
598: '<input type="text" name="'.$fieldname.'" size="'.$size.'" '.
599: 'value="'.$value.'" />'.
600: &relatedfield(1,$relatedsearchflag,$relatedsep,$fieldname,
601: $relatedvalue);
602: }
603:
604: # Main Handler
605: sub handler {
606: my $r=shift;
607: #
608: my $uri=$r->uri;
609: #
610: # Set document type
611: &Apache::loncommon::content_type($r,'text/html');
612: $r->send_http_header;
613: return OK if $r->header_only;
614: #
615: my ($resdomain,$resuser)=
616: (&Apache::lonnet::declutter($uri)=~/^(\w+)\/(\w+)\//);
617: my $html=&Apache::lonxml::xmlbegin();
618: $r->print($html.'<head><title>'.
619: 'Catalog Information'.
620: '</title></head>');
621: if ($uri=~m:/adm/bombs/(.*)$:) {
622: $r->print(&Apache::loncommon::bodytag('Error Messages'));
623: # Looking for all bombs?
624: &report_bombs($r,$uri);
625: } elsif ($uri=~/\/portfolio\//) {
626: ($resdomain,$resuser)=
627: (&Apache::lonnet::declutter($uri)=~m|^(\w+)/(\w+)/portfolio|);
628: $r->print(&Apache::loncommon::bodytag
629: ('Edit Portfolio File Information','','','',$resdomain));
630: &present_editable_metadata($r,$uri,'portfolio');
631: &select_course($r);
632: } elsif ($uri=~/^\/\~/) {
633: # Construction space
634: $r->print(&Apache::loncommon::bodytag
635: ('Edit Catalog Information','','','',$resdomain));
636: &present_editable_metadata($r,$uri);
637: } else {
638: $r->print(&Apache::loncommon::bodytag
639: ('Catalog Information','','','',$resdomain));
640: &present_uneditable_metadata($r,$uri);
641: }
642: $r->print('</body></html>');
643: return OK;
644: }
645:
646: #####################################################
647: #####################################################
648: ### ###
649: ### Report Bombs ###
650: ### ###
651: #####################################################
652: #####################################################
653: sub report_bombs {
654: my ($r,$uri) = @_;
655: # Set document type
656: $uri =~ s:/adm/bombs/::;
657: $uri = &Apache::lonnet::declutter($uri);
658: $r->print('<h1>'.&Apache::lonnet::clutter($uri).'</h1>');
659: my ($domain,$author)=($uri=~/^(\w+)\/(\w+)\//);
660: if (&Apache::loncacc::constructaccess('/~'.$author.'/',$domain)) {
661: if ($env{'form.clearbombs'}) {
662: &Apache::lonmsg::clear_author_res_msg($uri);
663: }
664: my $clear=&mt('Clear all Messages in Subdirectory');
665: $r->print(<<ENDCLEAR);
666: <form method="post">
667: <input type="submit" name="clearbombs" value="$clear" />
668: </form>
669: ENDCLEAR
670: my %brokenurls =
671: &Apache::lonmsg::all_url_author_res_msg($author,$domain);
672: foreach (sort(keys(%brokenurls))) {
673: if ($_=~/^\Q$uri\E/) {
674: $r->print
675: ('<a href="'.&Apache::lonnet::clutter($_).'">'.$_.'</a>'.
676: &Apache::lonmsg::retrieve_author_res_msg($_).
677: '<hr />');
678: }
679: }
680: } else {
681: $r->print(&mt('Not authorized'));
682: }
683: return;
684: }
685:
686: #####################################################
687: #####################################################
688: ### ###
689: ### Uneditable Metadata Display ###
690: ### ###
691: #####################################################
692: #####################################################
693: sub present_uneditable_metadata {
694: my ($r,$uri) = @_;
695: #
696: my %content=();
697: # Read file
698: foreach (split(/\,/,&Apache::lonnet::metadata($uri,'keys'))) {
699: $content{$_}=&Apache::lonnet::metadata($uri,$_);
700: }
701: # Render Output
702: # displayed url
703: my ($thisversion)=($uri=~/\.(\d+)\.(\w+)\.meta$/);
704: $uri=~s/\.meta$//;
705: my $disuri=&Apache::lonnet::clutter($uri);
706: # version
707: my $currentversion=&Apache::lonnet::getversion($disuri);
708: my $versiondisplay='';
709: if ($thisversion) {
710: $versiondisplay=&mt('Version').': '.$thisversion.
711: ' ('.&mt('most recent version').': '.
712: ($currentversion>0 ?
713: $currentversion :
714: &mt('information not available')).')';
715: } else {
716: $versiondisplay='Version: '.$currentversion;
717: }
718: # crumbify displayed URL uri target prefix form size
719: $disuri=&Apache::lonhtmlcommon::crumbs($disuri,undef, undef, undef,'+1');
720: $disuri =~ s:<br />::g;
721: # obsolete
722: my $obsolete=$content{'obsolete'};
723: my $obsoletewarning='';
724: if (($obsolete) && ($env{'user.adv'})) {
725: $obsoletewarning='<p><font color="red">'.
726: &mt('This resource has been marked obsolete by the author(s)').
727: '</font></p>';
728: }
729: #
730: my %lt=&fieldnames();
731: my $table='';
732: my $title = $content{'title'};
733: if (! defined($title)) {
734: $title = 'Untitled Resource';
735: }
736: foreach ('title',
737: 'author',
738: 'subject',
739: 'keywords',
740: 'notes',
741: 'abstract',
742: 'lowestgradelevel',
743: 'highestgradelevel',
744: 'standards',
745: 'mime',
746: 'language',
747: 'creationdate',
748: 'lastrevisiondate',
749: 'owner',
750: 'copyright',
751: 'customdistributionfile',
752: 'sourceavail',
753: 'sourcerights',
754: 'obsolete',
755: 'obsoletereplacement') {
756: $table.='<tr><td bgcolor="#AAAAAA">'.$lt{$_}.
757: '</td><td bgcolor="#CCCCCC">'.
758: &prettyprint($_,$content{$_}).'</td></tr>';
759: delete $content{$_};
760: }
761: #
762: $r->print(<<ENDHEAD);
763: <h2>$title</h2>
764: <p>
765: $disuri<br />
766: $obsoletewarning
767: $versiondisplay
768: </p>
769: <table cellspacing="2" border="0">
770: $table
771: </table>
772: ENDHEAD
773: if ($env{'user.adv'}) {
774: &print_dynamic_metadata($r,$uri,\%content);
775: }
776: return;
777: }
778:
779: sub print_dynamic_metadata {
780: my ($r,$uri,$content) = @_;
781: #
782: my %content = %$content;
783: my %lt=&fieldnames();
784: #
785: my $description = 'Dynamic Metadata (updated periodically)';
786: $r->print('<h3>'.&mt($description).'</h3>'.
787: &mt('Processing'));
788: $r->rflush();
789: my %items=&fieldnames();
790: my %dynmeta=&dynamicmeta($uri);
791: #
792: # General Access and Usage Statistics
793: if (exists($dynmeta{'count'}) ||
794: exists($dynmeta{'sequsage'}) ||
795: exists($dynmeta{'comefrom'}) ||
796: exists($dynmeta{'goto'}) ||
797: exists($dynmeta{'course'})) {
798: $r->print('<h4>'.&mt('Access and Usage Statistics').'</h4>'.
799: '<table cellspacing="2" border="0">');
800: foreach ('count',
801: 'sequsage','sequsage_list',
802: 'comefrom','comefrom_list',
803: 'goto','goto_list',
804: 'course','course_list') {
805: $r->print('<tr><td bgcolor="#AAAAAA">'.$lt{$_}.'</td>'.
806: '<td bgcolor="#CCCCCC">'.
807: &prettyprint($_,$dynmeta{$_})."</td></tr>\n");
808: }
809: $r->print('</table>');
810: } else {
811: $r->print('<h4>'.&mt('No Access or Usages Statistics are available for this resource.').'</h4>');
812: }
813: #
814: # Assessment statistics
815: if ($uri=~/\.(problem|exam|quiz|assess|survey|form)$/) {
816: if (exists($dynmeta{'stdno'}) ||
817: exists($dynmeta{'avetries'}) ||
818: exists($dynmeta{'difficulty'}) ||
819: exists($dynmeta{'disc'})) {
820: # This is an assessment, print assessment data
821: $r->print('<h4>'.
822: &mt('Overall Assessment Statistical Data').
823: '</h4>'.
824: '<table cellspacing="2" border="0">');
825: $r->print('<tr><td bgcolor="#AAAAAA">'.$lt{'stdno'}.'</td>'.
826: '<td bgcolor="#CCCCCC">'.
827: &prettyprint('stdno',$dynmeta{'stdno'}).
828: '</td>'."</tr>\n");
829: foreach ('avetries','difficulty','disc') {
830: $r->print('<tr><td bgcolor="#AAAAAA">'.$lt{$_}.'</td>'.
831: '<td bgcolor="#CCCCCC">'.
832: &prettyprint($_,sprintf('%5.2f',$dynmeta{$_})).
833: '</td>'."</tr>\n");
834: }
835: $r->print('</table>');
836: }
837: if (exists($dynmeta{'stats'})) {
838: #
839: # New assessment statistics
840: $r->print('<h4>'.
841: &mt('Detailed Assessment Statistical Data').
842: '</h4>');
843: my $table = '<table cellspacing="2" border="0">'.
844: '<tr>'.
845: '<th>Course</th>'.
846: '<th>Section(s)</th>'.
847: '<th>Num Students</th>'.
848: '<th>Mean Tries</th>'.
849: '<th>Degree of Difficulty</th>'.
850: '<th>Degree of Discrimination</th>'.
851: '<th>Time of computation</th>'.
852: '</tr>'.$/;
853: foreach my $identifier (sort(keys(%{$dynmeta{'stats'}}))) {
854: my $data = $dynmeta{'stats'}->{$identifier};
855: my $course = $data->{'course'};
856: my %courseinfo = &Apache::lonnet::coursedescription($course);
857: if (! exists($courseinfo{'num'}) || $courseinfo{'num'} eq '') {
858: &Apache::lonnet::logthis('lookup for '.$course.' failed');
859: next;
860: }
861: $table .= '<tr>';
862: $table .=
863: '<td><nobr>'.$courseinfo{'description'}.'</nobr></td>';
864: $table .=
865: '<td align="right">'.$data->{'sections'}.'</td>';
866: $table .=
867: '<td align="right">'.$data->{'stdno'}.'</td>';
868: foreach ('avetries','difficulty','disc') {
869: $table .= '<td align="right">';
870: if (exists($data->{$_})) {
871: $table .= sprintf('%.2f',$data->{$_}).' ';
872: } else {
873: $table .= '';
874: }
875: $table .= '</td>';
876: }
877: $table .=
878: '<td><nobr>'.
879: &Apache::lonlocal::locallocaltime($data->{'timestamp'}).
880: '</nobr></td>';
881: $table .=
882: '</tr>'.$/;
883: }
884: $table .= '</table>'.$/;
885: $r->print($table);
886: } else {
887: $r->print('No new dynamic data found.');
888: }
889: } else {
890: $r->print('<h4>'.
891: &mt('No Assessment Statistical Data is available for this resource').
892: '</h4>');
893: }
894:
895: #
896: #
897: if (exists($dynmeta{'clear'}) ||
898: exists($dynmeta{'depth'}) ||
899: exists($dynmeta{'helpful'}) ||
900: exists($dynmeta{'correct'}) ||
901: exists($dynmeta{'technical'})){
902: $r->print('<h4>'.&mt('Evaluation Data').'</h4>'.
903: '<table cellspacing="2" border="0">');
904: foreach ('clear','depth','helpful','correct','technical') {
905: $r->print('<tr><td bgcolor="#AAAAAA">'.$lt{$_}.'</td>'.
906: '<td bgcolor="#CCCCCC">'.
907: &prettyprint($_,$dynmeta{$_})."</td></tr>\n");
908: }
909: $r->print('</table>');
910: } else {
911: $r->print('<h4>'.&mt('No Evaluation Data is available for this resource.').'</h4>');
912: }
913: $uri=~/^\/res\/(\w+)\/(\w+)\//;
914: if ((($env{'user.domain'} eq $1) && ($env{'user.name'} eq $2))
915: || ($env{'user.role.ca./'.$1.'/'.$2})) {
916: if (exists($dynmeta{'comments'})) {
917: $r->print('<h4>'.&mt('Evaluation Comments').' ('.
918: &mt('visible to author and co-authors only').
919: ')</h4>'.
920: '<blockquote>'.$dynmeta{'comments'}.'</blockquote>');
921: } else {
922: $r->print('<h4>'.&mt('There are no Evaluation Comments on this resource.').'</h4>');
923: }
924: my $bombs = &Apache::lonmsg::retrieve_author_res_msg($uri);
925: if (defined($bombs) && $bombs ne '') {
926: $r->print('<a name="bombs" /><h4>'.&mt('Error Messages').' ('.
927: &mt('visible to author and co-authors only').')'.
928: '</h4>'.$bombs);
929: } else {
930: $r->print('<h4>'.&mt('There are currently no Error Messages for this resource.').'</h4>');
931: }
932: }
933: #
934: # All other stuff
935: $r->print('<h3>'.
936: &mt('Additional Metadata (non-standard, parameters, exports)').
937: '</h3><table border="0" cellspacing="1">');
938: foreach (sort(keys(%content))) {
939: my $name=$_;
940: if ($name!~/\.display$/) {
941: my $display=&Apache::lonnet::metadata($uri,
942: $name.'.display');
943: if (! $display) {
944: $display=$name;
945: };
946: my $otherinfo='';
947: foreach ('name','part','type','default') {
948: if (defined(&Apache::lonnet::metadata($uri,
949: $name.'.'.$_))) {
950: $otherinfo.=' '.$_.'='.
951: &Apache::lonnet::metadata($uri,
952: $name.'.'.$_).'; ';
953: }
954: }
955: $r->print('<tr><td bgcolor="#bbccbb"><font size="-1" color="#556655">'.$display.'</font></td><td bgcolor="#ccddcc"><font size="-1" color="#556655">'.$content{$name});
956: if ($otherinfo) {
957: $r->print(' ('.$otherinfo.')');
958: }
959: $r->print("</font></td></tr>\n");
960: }
961: }
962: $r->print("</table>");
963: return;
964: }
965:
966:
967:
968: #####################################################
969: #####################################################
970: ### ###
971: ### Editable metadata display ###
972: ### ###
973: #####################################################
974: #####################################################
975: sub present_editable_metadata {
976: my ($r,$uri, $file_type) = @_;
977: # Construction Space Call
978: # Header
979: my $disuri=$uri;
980: my $fn=&Apache::lonnet::filelocation('',$uri);
981: $disuri=~s/^\/\~/\/priv\//;
982: $disuri=~s/\.meta$//;
983: $disuri=~s|^/editupload||;
984: my $target=$uri;
985: $target=~s/^\/\~/\/res\/$env{'request.role.domain'}\//;
986: $target=~s/\.meta$//;
987: my $bombs=&Apache::lonmsg::retrieve_author_res_msg($target);
988: if ($bombs) {
989: my $showdel=1;
990: if ($env{'form.delmsg'}) {
991: if (&Apache::lonmsg::del_url_author_res_msg($target) eq 'ok') {
992: $bombs=&mt('Messages deleted.');
993: $showdel=0;
994: } else {
995: $bombs=&mt('Error deleting messages');
996: }
997: }
998: if ($env{'form.clearmsg'}) {
999: my $cleardir=$target;
1000: $cleardir=~s/\/[^\/]+$/\//;
1001: if (&Apache::lonmsg::clear_author_res_msg($cleardir) eq 'ok') {
1002: $bombs=&mt('Messages cleared.');
1003: $showdel=0;
1004: } else {
1005: $bombs=&mt('Error clearing messages');
1006: }
1007: }
1008: my $del=&mt('Delete Messages for this Resource');
1009: my $clear=&mt('Clear all Messages in Subdirectory');
1010: my $goback=&mt('Back to Source File');
1011: $r->print(<<ENDBOMBS);
1012: <h1>$disuri</h1>
1013: <form method="post" name="defaultmeta">
1014: ENDBOMBS
1015: if ($showdel) {
1016: $r->print(<<ENDDEL);
1017: <input type="submit" name="delmsg" value="$del" />
1018: <input type="submit" name="clearmsg" value="$clear" />
1019: ENDDEL
1020: } else {
1021: $r->print('<a href="'.$disuri.'" />'.$goback.'</a>');
1022: }
1023: $r->print('<br />'.$bombs);
1024: } else {
1025: my $displayfile='Catalog Information for '.$disuri;
1026: if ($disuri=~/\/default$/) {
1027: my $dir=$disuri;
1028: $dir=~s/default$//;
1029: $displayfile=
1030: &mt('Default Cataloging Information for Directory').' '.
1031: $dir;
1032: }
1033: %Apache::lonpublisher::metadatafields=();
1034: %Apache::lonpublisher::metadatakeys=();
1035: my $result=&Apache::lonnet::getfile($fn);
1036: if ($result == -1){
1037: $r->print('Creating new '.$disuri);
1038: } else {
1039: &Apache::lonpublisher::metaeval($result);
1040: }
1041: $r->print(<<ENDEDIT);
1042: <h1>$displayfile</h1>
1043: <form method="post" name="defaultmeta">
1044: ENDEDIT
1045: $r->print('<script language="JavaScript">'.
1046: &Apache::loncommon::browser_and_searcher_javascript().
1047: '</script>');
1048: my %lt=&fieldnames($file_type);
1049: my $output;
1050: my @fields;
1051: if ($file_type eq 'portfolio') {
1052: @fields = ('author','title','subject','keywords','abstract','notes','lowestgradelevel',
1053: 'highestgradelevel');
1054: } else {
1055: @fields = ('author','title','subject','keywords','abstract','notes',
1056: 'copyright','customdistributionfile','language',
1057: 'standards',
1058: 'lowestgradelevel','highestgradelevel','sourceavail','sourcerights',
1059: 'obsolete','obsoletereplacement');
1060: }
1061: foreach (@fields) {
1062: if (defined($env{'form.new_'.$_})) {
1063: $Apache::lonpublisher::metadatafields{$_}=
1064: $env{'form.new_'.$_};
1065: }
1066: if (! $Apache::lonpublisher::metadatafields{'copyright'}) {
1067: $Apache::lonpublisher::metadatafields{'copyright'}=
1068: 'default';
1069: }
1070: if ($env{'form.metacourse'}) {
1071: # handle restrictions here
1072: $env{'form.metacourse'} =~ m/(^.+)\.description$/;
1073: my $key_base = $1;
1074: if ($env{$key_base.'.metadata.'.$_.'.options'} =~ m/active/) {
1075: $output.=('<p>'.$lt{$_}.': '.
1076: &prettyinput($_,
1077: $Apache::lonpublisher::metadatafields{$_},
1078: 'new_'.$_,'defaultmeta',undef,undef,undef,undef,$key_base).'</p>');
1079: }
1080: } else {
1081: $output.=('<p>'.$lt{$_}.': '.
1082: &prettyinput($_,
1083: $Apache::lonpublisher::metadatafields{$_},
1084: 'new_'.$_,'defaultmeta').'</p>');
1085: }
1086: }
1087: if ($env{'form.store'}) {
1088: my $mfh;
1089: my $formname='store';
1090: my $file_content;
1091: foreach my $meta_field (keys %env) {
1092: if (&Apache::loncommon::get_env_multiple('form.keywords')) {
1093: $Apache::lonpublisher::metadatafields{'coursekeyword'} =
1094: join (', ', &Apache::loncommon::get_env_multiple('form.keywords'));
1095: }
1096: }
1097: foreach (sort keys %Apache::lonpublisher::metadatafields) {
1098: next if ($_ =~ /\./);
1099: my $unikey=$_;
1100: $unikey=~/^([A-Za-z]+)/;
1101: my $tag=$1;
1102: $tag=~tr/A-Z/a-z/;
1103: $file_content.= "\n\<$tag";
1104: foreach (split(/\,/,
1105: $Apache::lonpublisher::metadatakeys{$unikey})
1106: ) {
1107: my $value=
1108: $Apache::lonpublisher::metadatafields{$unikey.'.'.$_};
1109: $value=~s/\"/\'\'/g;
1110: $file_content.=' '.$_.'="'.$value.'"' ;
1111: # print $mfh ' '.$_.'="'.$value.'"';
1112: }
1113: $file_content.= '>'.
1114: &HTML::Entities::encode
1115: ($Apache::lonpublisher::metadatafields{$unikey},
1116: '<>&"').
1117: '</'.$tag.'>';
1118: }
1119: if ($fn =~ /\/portfolio\//) {
1120: $fn =~ /\/portfolio\/(.*)$/;
1121: my $new_fn = '/'.$1;
1122: $env{'form.'.$formname}=$file_content;
1123: $env{'form.'.$formname.'.filename'}=$new_fn;
1124: &Apache::lonnet::userfileupload('uploaddoc','',
1125: 'portfolio'.$env{'form.currentpath'});
1126: if (&Apache::lonnet::userfileupload($formname,'','portfolio') eq 'error: no uploaded file') {
1127: $r->print('<p><font color="red">'.
1128: &mt('Could not write metadata').', '.
1129: &mt('FAIL').'</font></p>');
1130: } else {
1131: $r->print('<p><font color="blue">'.&mt('Wrote Metadata').
1132: ' '.&Apache::lonlocal::locallocaltime(time).
1133: '</font></p>');
1134: }
1135: } else {
1136: if (! ($mfh=Apache::File->new('>'.$fn))) {
1137: $r->print('<p><font color="red">'.
1138: &mt('Could not write metadata').', '.
1139: &mt('FAIL').'</font></p>');
1140: } else {
1141: print $mfh $file_content;
1142: $r->print('<p><font color="blue">'.&mt('Wrote Metadata').
1143: ' '.&Apache::lonlocal::locallocaltime(time).
1144: '</font></p>');
1145: }
1146: }
1147: }
1148: $r->print($output.'<br /><input type="submit" name="store" value="'.
1149: &mt('Store Catalog Information').'">');
1150: }
1151: $r->print('</form>');
1152: return;
1153: }
1154:
1155: 1;
1156: __END__
1157:
1158:
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