1: # The LearningOnline Network with CAPA
2: # Metadata display handler
3: #
4: # $Id: lonmeta.pm,v 1.136 2005/12/09 23:49:45 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 $file_type=shift;
240: my %fields =
241: ('title' => 'Title',
242: 'author' =>'Author(s)',
243: 'authorspace' => 'Author Space',
244: 'modifyinguser' => 'Last Modifying User',
245: 'subject' => 'Subject',
246: 'standards' => 'Standards',
247: 'keywords' => 'Keyword(s)',
248: 'notes' => 'Notes',
249: 'abstract' => 'Abstract',
250: 'lowestgradelevel' => 'Lowest Grade Level',
251: 'highestgradelevel' => 'Highest Grade Level',
252: 'courserestricted' => 'Course Restricting Metadata');
253:
254: if (! defined($file_type) || $file_type ne 'portfolio') {
255: %fields =
256: (%fields,
257: 'domain' => 'Domain',
258: 'mime' => 'MIME Type',
259: 'language' => 'Language',
260: 'creationdate' => 'Creation Date',
261: 'lastrevisiondate' => 'Last Revision Date',
262: 'owner' => 'Publisher/Owner',
263: 'copyright' => 'Copyright/Distribution',
264: 'customdistributionfile' => 'Custom Distribution File',
265: 'sourceavail' => 'Source Available',
266: 'sourcerights' => 'Source Custom Distribution File',
267: 'obsolete' => 'Obsolete',
268: 'obsoletereplacement' => 'Suggested Replacement for Obsolete File',
269: 'count' => 'Network-wide number of accesses (hits)',
270: 'course' => 'Network-wide number of courses using resource',
271: 'course_list' => 'Network-wide courses using resource',
272: 'sequsage' => 'Number of resources using or importing resource',
273: 'sequsage_list' => 'Resources using or importing resource',
274: 'goto' => 'Number of resources that follow this resource in maps',
275: 'goto_list' => 'Resources that follow this resource in maps',
276: 'comefrom' => 'Number of resources that lead up to this resource in maps',
277: 'comefrom_list' => 'Resources that lead up to this resource in maps',
278: 'clear' => 'Material presented in clear way',
279: 'depth' => 'Material covered with sufficient depth',
280: 'helpful' => 'Material is helpful',
281: 'correct' => 'Material appears to be correct',
282: 'technical' => 'Resource is technically correct',
283: 'avetries' => 'Average number of tries till solved',
284: 'stdno' => 'Total number of students who have worked on this problem',
285: 'difficulty' => 'Degree of difficulty',
286: 'disc' => 'Degree of discrimination',
287: 'dependencies' => 'Resources used by this resource',
288: );
289: }
290: return &Apache::lonlocal::texthash(%fields);
291: }
292:
293: sub select_course {
294: my ($r)=@_;
295: my %courses;
296: foreach my $key (keys (%env)) {
297: if ($key =~ m/\.metadata\./) {
298: $key =~ m/^course\.(.+)(\.metadata.+$)/;
299: my $course = $1;
300: my $coursekey = 'course.'.$course.'.description';
301: my $value = $env{$coursekey};
302: $courses{$coursekey} = $value;
303: }
304: }
305: $r->print('<h3>Associate resource with a course</h3><br />');
306: $r->print('<form action="" method="post">');
307: $r->print('Select course <br />');
308: $r->print('<select name="metacourse" >');
309: my $meta_not_found = 1;
310: foreach my $key (keys (%courses)) {
311: if ($meta_not_found) {
312: undef($meta_not_found);
313: $r->print('<h3>Portfolio Meta-Data</h3><br />');
314: $r->print('<form action="" method="post">');
315: $r->print('Select your course<br />');
316: $r->print('<select name="metacourse" >');
317: }
318: $key =~ m/(^.+)\.description$/;
319: $r->print('<option value="'.$1.'">');
320: $r->print($courses{$key});
321: $r->print('</option>');
322: }
323: unless ($meta_not_found) {
324: $r->print('</select><br />');
325: $r->print('<input type="submit" value="Associate" />');
326: $r->print('</form>');
327: }
328: return 'ok';
329: }
330: # Pretty printing of metadata field
331:
332: sub prettyprint {
333: my ($type,$value,$target,$prefix,$form,$noformat)=@_;
334: # $target,$prefix,$form are optional and for filecrumbs only
335: if (! defined($value)) {
336: return ' ';
337: }
338: # Title
339: if ($type eq 'title') {
340: return '<font size="+1" face="arial">'.$value.'</font>';
341: }
342: # Dates
343: if (($type eq 'creationdate') ||
344: ($type eq 'lastrevisiondate')) {
345: return ($value?&Apache::lonlocal::locallocaltime(
346: &Apache::lonmysql::unsqltime($value)):
347: &mt('not available'));
348: }
349: # Language
350: if ($type eq 'language') {
351: return &Apache::loncommon::languagedescription($value);
352: }
353: # Copyright
354: if ($type eq 'copyright') {
355: return &Apache::loncommon::copyrightdescription($value);
356: }
357: # Copyright
358: if ($type eq 'sourceavail') {
359: return &Apache::loncommon::source_copyrightdescription($value);
360: }
361: # MIME
362: if ($type eq 'mime') {
363: return '<img src="'.&Apache::loncommon::icon($value).'" /> '.
364: &Apache::loncommon::filedescription($value);
365: }
366: # Person
367: if (($type eq 'author') ||
368: ($type eq 'owner') ||
369: ($type eq 'modifyinguser') ||
370: ($type eq 'authorspace')) {
371: $value=~s/(\w+)(\:|\@)(\w+)/&authordisplay($1,$3)/gse;
372: return $value;
373: }
374: # Gradelevel
375: if (($type eq 'lowestgradelevel') ||
376: ($type eq 'highestgradelevel')) {
377: return &Apache::loncommon::gradeleveldescription($value);
378: }
379: # Only for advance users below
380: if (! $env{'user.adv'}) {
381: return '<i>- '.&mt('not displayed').' -</i>';
382: }
383: # File
384: if (($type eq 'customdistributionfile') ||
385: ($type eq 'obsoletereplacement') ||
386: ($type eq 'goto_list') ||
387: ($type eq 'comefrom_list') ||
388: ($type eq 'sequsage_list') ||
389: ($type eq 'dependencies')) {
390: return '<ul><font size="-1">'.join("\n",map {
391: my $url = &Apache::lonnet::clutter($_);
392: my $title = &Apache::lonnet::gettitle($url);
393: if ($title eq '') {
394: $title = 'Untitled';
395: if ($url =~ /\.sequence$/) {
396: $title .= ' Sequence';
397: } elsif ($url =~ /\.page$/) {
398: $title .= ' Page';
399: } elsif ($url =~ /\.problem$/) {
400: $title .= ' Problem';
401: } elsif ($url =~ /\.html$/) {
402: $title .= ' HTML document';
403: } elsif ($url =~ m:/syllabus$:) {
404: $title .= ' Syllabus';
405: }
406: }
407: $_ = '<li>'.$title.' '.
408: &Apache::lonhtmlcommon::crumbs($url,$target,$prefix,$form,'-1',$noformat).
409: '</li>'
410: } split(/\s*\,\s*/,$value)).'</ul></font>';
411: }
412: # Evaluations
413: if (($type eq 'clear') ||
414: ($type eq 'depth') ||
415: ($type eq 'helpful') ||
416: ($type eq 'correct') ||
417: ($type eq 'technical')) {
418: return &evalgraph($value);
419: }
420: # Difficulty
421: if ($type eq 'difficulty' || $type eq 'disc') {
422: return &diffgraph($value);
423: }
424: # List of courses
425: if ($type=~/\_list/) {
426: my @Courses = split(/\s*\,\s*/,$value);
427: my $Str;
428: foreach my $course (@Courses) {
429: my %courseinfo = &Apache::lonnet::coursedescription($course);
430: if (! exists($courseinfo{'num'}) || $courseinfo{'num'} eq '') {
431: next;
432: }
433: if ($Str ne '') { $Str .= '<br />'; }
434: $Str .= '<a href="/public/'.$courseinfo{'domain'}.'/'.
435: $courseinfo{'num'}.'/syllabus" target="preview">'.
436: $courseinfo{'description'}.'</a>';
437: }
438: return $Str;
439: }
440: # No pretty print found
441: return $value;
442: }
443:
444: # Pretty input of metadata field
445: sub direct {
446: return shift;
447: }
448:
449: sub selectbox {
450: my ($name,$value,$functionref,@idlist)=@_;
451: if (! defined($functionref)) {
452: $functionref=\&direct;
453: }
454: my $selout='<select name="'.$name.'">';
455: foreach (@idlist) {
456: $selout.='<option value=\''.$_.'\'';
457: if ($_ eq $value) {
458: $selout.=' selected>'.&{$functionref}($_).'</option>';
459: }
460: else {$selout.='>'.&{$functionref}($_).'</option>';}
461: }
462: return $selout.'</select>';
463: }
464:
465: sub relatedfield {
466: my ($show,$relatedsearchflag,$relatedsep,$fieldname,$relatedvalue)=@_;
467: if (! $relatedsearchflag) {
468: return '';
469: }
470: if (! defined($relatedsep)) {
471: $relatedsep=' ';
472: }
473: if (! $show) {
474: return $relatedsep.' ';
475: }
476: return $relatedsep.'<input type="checkbox" name="'.$fieldname.'_related"'.
477: ($relatedvalue?' checked="1"':'').' />';
478: }
479:
480: sub prettyinput {
481: my ($type,$value,$fieldname,$formname,
482: $relatedsearchflag,$relatedsep,$relatedvalue,$size,$course_key)=@_;
483: if (! defined($size)) {
484: $size = 80;
485: }
486: my $output;
487: if (defined($course_key)) {
488: my $stu_add;
489: my $only_one;
490: my %meta_options;
491: my @cur_values_inst;
492: my $cur_values_stu;
493: my $values = $env{$course_key.'.metadata.'.$type.'.values'};
494: if ($env{$course_key.'.metadata.'.$type.'.options'} =~ m/stuadd/) {
495: $stu_add = 'true';
496: }
497: if ($env{$course_key.'.metadata.'.$type.'.options'} =~ m/onlyone/) {
498: $only_one = 'true';
499: }
500: # need to take instructor values out of list where instructor and student
501: # values may be mixed.
502: if ($values) {
503: foreach my $item (split(/,/,$values)) {
504: $item =~ s/^\s+//;
505: $meta_options{$item} = $item;
506: }
507: foreach my $item (split(/,/,$value)) {
508: $item =~ s/^\s+//;
509: if ($meta_options{$item}) {
510: push(@cur_values_inst,$item);
511: } else {
512: $cur_values_stu .= $item.',';
513: }
514: }
515: } else {
516: $cur_values_stu = $value;
517: }
518: if ($type eq 'courserestricted') {
519: return ('<input type="hidden" name="new_courserestricted" value="'.$course_key.'" />');
520: }
521: if (($type eq 'keywords') || ($type eq 'subject')
522: || ($type eq 'author')||($type eq 'notes')
523: || ($type eq 'abstract')|| ($type eq 'title')|| ($type eq 'standards')) {
524: if ($values) {
525: if ($only_one) {
526: $output .= (&Apache::loncommon::select_form($cur_values_inst[0],'new_'.$type,%meta_options));
527: } else {
528: $output .= (&Apache::loncommon::multiple_select_form('new_'.$type,\@cur_values_inst,undef,\%meta_options));
529: }
530: }
531: if ($stu_add) {
532: $output .= '<input type="text" name="'.$fieldname.'" size="'.$size.'" '.
533: 'value="'.$cur_values_stu.'" />'.
534: &relatedfield(1,$relatedsearchflag,$relatedsep,$fieldname,
535: $relatedvalue);
536: }
537: return ($output);
538: }
539: if (($type eq 'lowestgradelevel') ||
540: ($type eq 'highestgradelevel')) {
541: return &Apache::loncommon::select_level_form($value,$fieldname).
542: &relatedfield(0,$relatedsearchflag,$relatedsep);
543: }
544: return();
545: }
546: # Language
547: if ($type eq 'language') {
548: return &selectbox($fieldname,
549: $value,
550: \&Apache::loncommon::languagedescription,
551: (&Apache::loncommon::languageids)).
552: &relatedfield(0,$relatedsearchflag,$relatedsep);
553: }
554: # Copyright
555: if ($type eq 'copyright') {
556: return &selectbox($fieldname,
557: $value,
558: \&Apache::loncommon::copyrightdescription,
559: (&Apache::loncommon::copyrightids)).
560: &relatedfield(0,$relatedsearchflag,$relatedsep);
561: }
562: # Source Copyright
563: if ($type eq 'sourceavail') {
564: return &selectbox($fieldname,
565: $value,
566: \&Apache::loncommon::source_copyrightdescription,
567: (&Apache::loncommon::source_copyrightids)).
568: &relatedfield(0,$relatedsearchflag,$relatedsep);
569: }
570: # Gradelevels
571: if (($type eq 'lowestgradelevel') ||
572: ($type eq 'highestgradelevel')) {
573: return &Apache::loncommon::select_level_form($value,$fieldname).
574: &relatedfield(0,$relatedsearchflag,$relatedsep);
575: }
576: # Obsolete
577: if ($type eq 'obsolete') {
578: return '<input type="checkbox" name="'.$fieldname.'"'.
579: ($value?' checked="1"':'').' />'.
580: &relatedfield(0,$relatedsearchflag,$relatedsep);
581: }
582: # Obsolete replacement file
583: if ($type eq 'obsoletereplacement') {
584: return '<input type="text" name="'.$fieldname.
585: '" size="60" value="'.$value.'" /><a href="javascript:openbrowser'.
586: "('".$formname."','".$fieldname."'".
587: ",'')\">".&mt('Select').'</a>'.
588: &relatedfield(0,$relatedsearchflag,$relatedsep);
589: }
590: # Customdistribution file
591: if ($type eq 'customdistributionfile') {
592: return '<input type="text" name="'.$fieldname.
593: '" size="60" value="'.$value.'" /><a href="javascript:openbrowser'.
594: "('".$formname."','".$fieldname."'".
595: ",'rights')\">".&mt('Select').'</a>'.
596: &relatedfield(0,$relatedsearchflag,$relatedsep);
597: }
598: # Source Customdistribution file
599: if ($type eq 'sourcerights') {
600: return '<input type="text" name="'.$fieldname.
601: '" size="60" value="'.$value.'" /><a href="javascript:openbrowser'.
602: "('".$formname."','".$fieldname."'".
603: ",'rights')\">".&mt('Select').'</a>'.
604: &relatedfield(0,$relatedsearchflag,$relatedsep);
605: }
606: if ($type eq 'courserestricted') {
607: return ('<input type="hidden" name="new_courserestricted" value="'.$course_key.'" />');
608: }
609:
610: # Dates
611: if (($type eq 'creationdate') ||
612: ($type eq 'lastrevisiondate')) {
613: return
614: &Apache::lonhtmlcommon::date_setter($formname,$fieldname,$value).
615: &relatedfield(0,$relatedsearchflag,$relatedsep);
616: }
617: # No pretty input found
618: $value=~s/^\s+//gs;
619: $value=~s/\s+$//gs;
620: $value=~s/\s+/ /gs;
621: $value=~s/\"/\"\;/gs;
622: return
623: '<input type="text" name="'.$fieldname.'" size="'.$size.'" '.
624: 'value="'.$value.'" />'.
625: &relatedfield(1,$relatedsearchflag,$relatedsep,$fieldname,
626: $relatedvalue);
627: }
628:
629: # Main Handler
630: sub handler {
631: my $r=shift;
632: #
633: my $uri=$r->uri;
634: #
635: # Set document type
636: &Apache::loncommon::content_type($r,'text/html');
637: $r->send_http_header;
638: return OK if $r->header_only;
639: #
640: my ($resdomain,$resuser)=
641: (&Apache::lonnet::declutter($uri)=~/^(\w+)\/(\w+)\//);
642: my $html=&Apache::lonxml::xmlbegin();
643: $r->print($html.'<head><title>'.
644: 'Catalog Information'.
645: '</title></head>');
646: if ($uri=~m:/adm/bombs/(.*)$:) {
647: $r->print(&Apache::loncommon::bodytag('Error Messages'));
648: # Looking for all bombs?
649: &report_bombs($r,$uri);
650: } elsif ($uri=~/\/portfolio\//) {
651: ($resdomain,$resuser)=
652: (&Apache::lonnet::declutter($uri)=~m|^(\w+)/(\w+)/portfolio|);
653: $r->print(&Apache::loncommon::bodytag
654: ('Edit Portfolio File Information','','','',$resdomain));
655: &present_editable_metadata($r,$uri,'portfolio');
656: &select_course($r);
657: } elsif ($uri=~/^\/\~/) {
658: # Construction space
659: $r->print(&Apache::loncommon::bodytag
660: ('Edit Catalog Information','','','',$resdomain));
661: &present_editable_metadata($r,$uri);
662: } else {
663: $r->print(&Apache::loncommon::bodytag
664: ('Catalog Information','','','',$resdomain));
665: &present_uneditable_metadata($r,$uri);
666: }
667: $r->print('</body></html>');
668: return OK;
669: }
670:
671: #####################################################
672: #####################################################
673: ### ###
674: ### Report Bombs ###
675: ### ###
676: #####################################################
677: #####################################################
678: sub report_bombs {
679: my ($r,$uri) = @_;
680: # Set document type
681: $uri =~ s:/adm/bombs/::;
682: $uri = &Apache::lonnet::declutter($uri);
683: $r->print('<h1>'.&Apache::lonnet::clutter($uri).'</h1>');
684: my ($domain,$author)=($uri=~/^(\w+)\/(\w+)\//);
685: if (&Apache::loncacc::constructaccess('/~'.$author.'/',$domain)) {
686: if ($env{'form.clearbombs'}) {
687: &Apache::lonmsg::clear_author_res_msg($uri);
688: }
689: my $clear=&mt('Clear all Messages in Subdirectory');
690: $r->print(<<ENDCLEAR);
691: <form method="post">
692: <input type="submit" name="clearbombs" value="$clear" />
693: </form>
694: ENDCLEAR
695: my %brokenurls =
696: &Apache::lonmsg::all_url_author_res_msg($author,$domain);
697: foreach (sort(keys(%brokenurls))) {
698: if ($_=~/^\Q$uri\E/) {
699: $r->print
700: ('<a href="'.&Apache::lonnet::clutter($_).'">'.$_.'</a>'.
701: &Apache::lonmsg::retrieve_author_res_msg($_).
702: '<hr />');
703: }
704: }
705: } else {
706: $r->print(&mt('Not authorized'));
707: }
708: return;
709: }
710:
711: #####################################################
712: #####################################################
713: ### ###
714: ### Uneditable Metadata Display ###
715: ### ###
716: #####################################################
717: #####################################################
718: sub present_uneditable_metadata {
719: my ($r,$uri) = @_;
720: #
721: my %content=();
722: # Read file
723: foreach (split(/\,/,&Apache::lonnet::metadata($uri,'keys'))) {
724: $content{$_}=&Apache::lonnet::metadata($uri,$_);
725: }
726: # Render Output
727: # displayed url
728: my ($thisversion)=($uri=~/\.(\d+)\.(\w+)\.meta$/);
729: $uri=~s/\.meta$//;
730: my $disuri=&Apache::lonnet::clutter($uri);
731: # version
732: my $currentversion=&Apache::lonnet::getversion($disuri);
733: my $versiondisplay='';
734: if ($thisversion) {
735: $versiondisplay=&mt('Version').': '.$thisversion.
736: ' ('.&mt('most recent version').': '.
737: ($currentversion>0 ?
738: $currentversion :
739: &mt('information not available')).')';
740: } else {
741: $versiondisplay='Version: '.$currentversion;
742: }
743: # crumbify displayed URL uri target prefix form size
744: $disuri=&Apache::lonhtmlcommon::crumbs($disuri,undef, undef, undef,'+1');
745: $disuri =~ s:<br />::g;
746: # obsolete
747: my $obsolete=$content{'obsolete'};
748: my $obsoletewarning='';
749: if (($obsolete) && ($env{'user.adv'})) {
750: $obsoletewarning='<p><font color="red">'.
751: &mt('This resource has been marked obsolete by the author(s)').
752: '</font></p>';
753: }
754: #
755: my %lt=&fieldnames();
756: my $table='';
757: my $title = $content{'title'};
758: if (! defined($title)) {
759: $title = 'Untitled Resource';
760: }
761: foreach ('title',
762: 'author',
763: 'subject',
764: 'keywords',
765: 'notes',
766: 'abstract',
767: 'lowestgradelevel',
768: 'highestgradelevel',
769: 'standards',
770: 'mime',
771: 'language',
772: 'creationdate',
773: 'lastrevisiondate',
774: 'owner',
775: 'copyright',
776: 'customdistributionfile',
777: 'sourceavail',
778: 'sourcerights',
779: 'obsolete',
780: 'obsoletereplacement') {
781: $table.='<tr><td bgcolor="#AAAAAA">'.$lt{$_}.
782: '</td><td bgcolor="#CCCCCC">'.
783: &prettyprint($_,$content{$_}).'</td></tr>';
784: delete $content{$_};
785: }
786: #
787: $r->print(<<ENDHEAD);
788: <h2>$title</h2>
789: <p>
790: $disuri<br />
791: $obsoletewarning
792: $versiondisplay
793: </p>
794: <table cellspacing="2" border="0">
795: $table
796: </table>
797: ENDHEAD
798: if ($env{'user.adv'}) {
799: &print_dynamic_metadata($r,$uri,\%content);
800: }
801: return;
802: }
803:
804: sub print_dynamic_metadata {
805: my ($r,$uri,$content) = @_;
806: #
807: my %content = %$content;
808: my %lt=&fieldnames();
809: #
810: my $description = 'Dynamic Metadata (updated periodically)';
811: $r->print('<h3>'.&mt($description).'</h3>'.
812: &mt('Processing'));
813: $r->rflush();
814: my %items=&fieldnames();
815: my %dynmeta=&dynamicmeta($uri);
816: #
817: # General Access and Usage Statistics
818: if (exists($dynmeta{'count'}) ||
819: exists($dynmeta{'sequsage'}) ||
820: exists($dynmeta{'comefrom'}) ||
821: exists($dynmeta{'goto'}) ||
822: exists($dynmeta{'course'})) {
823: $r->print('<h4>'.&mt('Access and Usage Statistics').'</h4>'.
824: '<table cellspacing="2" border="0">');
825: foreach ('count',
826: 'sequsage','sequsage_list',
827: 'comefrom','comefrom_list',
828: 'goto','goto_list',
829: 'course','course_list') {
830: $r->print('<tr><td bgcolor="#AAAAAA">'.$lt{$_}.'</td>'.
831: '<td bgcolor="#CCCCCC">'.
832: &prettyprint($_,$dynmeta{$_})."</td></tr>\n");
833: }
834: $r->print('</table>');
835: } else {
836: $r->print('<h4>'.&mt('No Access or Usages Statistics are available for this resource.').'</h4>');
837: }
838: #
839: # Assessment statistics
840: if ($uri=~/\.(problem|exam|quiz|assess|survey|form)$/) {
841: if (exists($dynmeta{'stdno'}) ||
842: exists($dynmeta{'avetries'}) ||
843: exists($dynmeta{'difficulty'}) ||
844: exists($dynmeta{'disc'})) {
845: # This is an assessment, print assessment data
846: $r->print('<h4>'.
847: &mt('Overall Assessment Statistical Data').
848: '</h4>'.
849: '<table cellspacing="2" border="0">');
850: $r->print('<tr><td bgcolor="#AAAAAA">'.$lt{'stdno'}.'</td>'.
851: '<td bgcolor="#CCCCCC">'.
852: &prettyprint('stdno',$dynmeta{'stdno'}).
853: '</td>'."</tr>\n");
854: foreach ('avetries','difficulty','disc') {
855: $r->print('<tr><td bgcolor="#AAAAAA">'.$lt{$_}.'</td>'.
856: '<td bgcolor="#CCCCCC">'.
857: &prettyprint($_,sprintf('%5.2f',$dynmeta{$_})).
858: '</td>'."</tr>\n");
859: }
860: $r->print('</table>');
861: }
862: if (exists($dynmeta{'stats'})) {
863: #
864: # New assessment statistics
865: $r->print('<h4>'.
866: &mt('Detailed Assessment Statistical Data').
867: '</h4>');
868: my $table = '<table cellspacing="2" border="0">'.
869: '<tr>'.
870: '<th>Course</th>'.
871: '<th>Section(s)</th>'.
872: '<th>Num Students</th>'.
873: '<th>Mean Tries</th>'.
874: '<th>Degree of Difficulty</th>'.
875: '<th>Degree of Discrimination</th>'.
876: '<th>Time of computation</th>'.
877: '</tr>'.$/;
878: foreach my $identifier (sort(keys(%{$dynmeta{'stats'}}))) {
879: my $data = $dynmeta{'stats'}->{$identifier};
880: my $course = $data->{'course'};
881: my %courseinfo = &Apache::lonnet::coursedescription($course);
882: if (! exists($courseinfo{'num'}) || $courseinfo{'num'} eq '') {
883: &Apache::lonnet::logthis('lookup for '.$course.' failed');
884: next;
885: }
886: $table .= '<tr>';
887: $table .=
888: '<td><nobr>'.$courseinfo{'description'}.'</nobr></td>';
889: $table .=
890: '<td align="right">'.$data->{'sections'}.'</td>';
891: $table .=
892: '<td align="right">'.$data->{'stdno'}.'</td>';
893: foreach ('avetries','difficulty','disc') {
894: $table .= '<td align="right">';
895: if (exists($data->{$_})) {
896: $table .= sprintf('%.2f',$data->{$_}).' ';
897: } else {
898: $table .= '';
899: }
900: $table .= '</td>';
901: }
902: $table .=
903: '<td><nobr>'.
904: &Apache::lonlocal::locallocaltime($data->{'timestamp'}).
905: '</nobr></td>';
906: $table .=
907: '</tr>'.$/;
908: }
909: $table .= '</table>'.$/;
910: $r->print($table);
911: } else {
912: $r->print('No new dynamic data found.');
913: }
914: } else {
915: $r->print('<h4>'.
916: &mt('No Assessment Statistical Data is available for this resource').
917: '</h4>');
918: }
919:
920: #
921: #
922: if (exists($dynmeta{'clear'}) ||
923: exists($dynmeta{'depth'}) ||
924: exists($dynmeta{'helpful'}) ||
925: exists($dynmeta{'correct'}) ||
926: exists($dynmeta{'technical'})){
927: $r->print('<h4>'.&mt('Evaluation Data').'</h4>'.
928: '<table cellspacing="2" border="0">');
929: foreach ('clear','depth','helpful','correct','technical') {
930: $r->print('<tr><td bgcolor="#AAAAAA">'.$lt{$_}.'</td>'.
931: '<td bgcolor="#CCCCCC">'.
932: &prettyprint($_,$dynmeta{$_})."</td></tr>\n");
933: }
934: $r->print('</table>');
935: } else {
936: $r->print('<h4>'.&mt('No Evaluation Data is available for this resource.').'</h4>');
937: }
938: $uri=~/^\/res\/(\w+)\/(\w+)\//;
939: if ((($env{'user.domain'} eq $1) && ($env{'user.name'} eq $2))
940: || ($env{'user.role.ca./'.$1.'/'.$2})) {
941: if (exists($dynmeta{'comments'})) {
942: $r->print('<h4>'.&mt('Evaluation Comments').' ('.
943: &mt('visible to author and co-authors only').
944: ')</h4>'.
945: '<blockquote>'.$dynmeta{'comments'}.'</blockquote>');
946: } else {
947: $r->print('<h4>'.&mt('There are no Evaluation Comments on this resource.').'</h4>');
948: }
949: my $bombs = &Apache::lonmsg::retrieve_author_res_msg($uri);
950: if (defined($bombs) && $bombs ne '') {
951: $r->print('<a name="bombs" /><h4>'.&mt('Error Messages').' ('.
952: &mt('visible to author and co-authors only').')'.
953: '</h4>'.$bombs);
954: } else {
955: $r->print('<h4>'.&mt('There are currently no Error Messages for this resource.').'</h4>');
956: }
957: }
958: #
959: # All other stuff
960: $r->print('<h3>'.
961: &mt('Additional Metadata (non-standard, parameters, exports)').
962: '</h3><table border="0" cellspacing="1">');
963: foreach (sort(keys(%content))) {
964: my $name=$_;
965: if ($name!~/\.display$/) {
966: my $display=&Apache::lonnet::metadata($uri,
967: $name.'.display');
968: if (! $display) {
969: $display=$name;
970: };
971: my $otherinfo='';
972: foreach ('name','part','type','default') {
973: if (defined(&Apache::lonnet::metadata($uri,
974: $name.'.'.$_))) {
975: $otherinfo.=' '.$_.'='.
976: &Apache::lonnet::metadata($uri,
977: $name.'.'.$_).'; ';
978: }
979: }
980: $r->print('<tr><td bgcolor="#bbccbb"><font size="-1" color="#556655">'.$display.'</font></td><td bgcolor="#ccddcc"><font size="-1" color="#556655">'.$content{$name});
981: if ($otherinfo) {
982: $r->print(' ('.$otherinfo.')');
983: }
984: $r->print("</font></td></tr>\n");
985: }
986: }
987: $r->print("</table>");
988: return;
989: }
990:
991:
992:
993: #####################################################
994: #####################################################
995: ### ###
996: ### Editable metadata display ###
997: ### ###
998: #####################################################
999: #####################################################
1000: sub present_editable_metadata {
1001: my ($r,$uri, $file_type) = @_;
1002: # Construction Space Call
1003: # Header
1004: my $disuri=$uri;
1005: my $fn=&Apache::lonnet::filelocation('',$uri);
1006: $disuri=~s/^\/\~/\/priv\//;
1007: $disuri=~s/\.meta$//;
1008: $disuri=~s|^/editupload||;
1009: my $target=$uri;
1010: $target=~s/^\/\~/\/res\/$env{'request.role.domain'}\//;
1011: $target=~s/\.meta$//;
1012: my $bombs=&Apache::lonmsg::retrieve_author_res_msg($target);
1013: if ($bombs) {
1014: my $showdel=1;
1015: if ($env{'form.delmsg'}) {
1016: if (&Apache::lonmsg::del_url_author_res_msg($target) eq 'ok') {
1017: $bombs=&mt('Messages deleted.');
1018: $showdel=0;
1019: } else {
1020: $bombs=&mt('Error deleting messages');
1021: }
1022: }
1023: if ($env{'form.clearmsg'}) {
1024: my $cleardir=$target;
1025: $cleardir=~s/\/[^\/]+$/\//;
1026: if (&Apache::lonmsg::clear_author_res_msg($cleardir) eq 'ok') {
1027: $bombs=&mt('Messages cleared.');
1028: $showdel=0;
1029: } else {
1030: $bombs=&mt('Error clearing messages');
1031: }
1032: }
1033: my $del=&mt('Delete Messages for this Resource');
1034: my $clear=&mt('Clear all Messages in Subdirectory');
1035: my $goback=&mt('Back to Source File');
1036: $r->print(<<ENDBOMBS);
1037: <h1>$disuri</h1>
1038: <form method="post" name="defaultmeta">
1039: ENDBOMBS
1040: if ($showdel) {
1041: $r->print(<<ENDDEL);
1042: <input type="submit" name="delmsg" value="$del" />
1043: <input type="submit" name="clearmsg" value="$clear" />
1044: ENDDEL
1045: } else {
1046: $r->print('<a href="'.$disuri.'" />'.$goback.'</a>');
1047: }
1048: $r->print('<br />'.$bombs);
1049: } else {
1050: my $displayfile='Catalog Information for '.$disuri;
1051: if ($disuri=~/\/default$/) {
1052: my $dir=$disuri;
1053: $dir=~s/default$//;
1054: $displayfile=
1055: &mt('Default Cataloging Information for Directory').' '.
1056: $dir;
1057: }
1058: %Apache::lonpublisher::metadatafields=();
1059: %Apache::lonpublisher::metadatakeys=();
1060: my $result=&Apache::lonnet::getfile($fn);
1061: if ($result == -1){
1062: $r->print('Creating new '.$disuri);
1063: } else {
1064: &Apache::lonpublisher::metaeval($result);
1065: }
1066: $r->print(<<ENDEDIT);
1067: <h1>$displayfile</h1>
1068: <form method="post" name="defaultmeta">
1069: ENDEDIT
1070: $r->print('<script language="JavaScript">'.
1071: &Apache::loncommon::browser_and_searcher_javascript().
1072: '</script>');
1073: my %lt=&fieldnames($file_type);
1074: my $output;
1075: my @fields;
1076: if ($file_type eq 'portfolio') {
1077: @fields = ('author','title','subject','keywords','abstract','notes','lowestgradelevel',
1078: 'highestgradelevel','standards','courserestricted');
1079: } else {
1080: @fields = ('author','title','subject','keywords','abstract','notes',
1081: 'copyright','customdistributionfile','language',
1082: 'standards',
1083: 'lowestgradelevel','highestgradelevel','sourceavail','sourcerights',
1084: 'obsolete','obsoletereplacement');
1085: }
1086: my $metacourse;
1087: if ($env{'form.metacourse'} ) {
1088: $Apache::lonpublisher::metadatafields{'courserestricted'} = $env{'form.metacourse'};
1089: $metacourse = $env{'form.metacourse'};
1090: } else {
1091: if (! $Apache::lonpublisher::metadatafields{'courserestricted'}) {
1092: $Apache::lonpublisher::metadatafields{'courserestricted'}=
1093: 'none';
1094: $metacourse = 'none';
1095: } else {
1096: $metacourse = $Apache::lonpublisher::metadatafields{'courserestricted'};
1097: }
1098: }
1099: if (! $Apache::lonpublisher::metadatafields{'copyright'}) {
1100: $Apache::lonpublisher::metadatafields{'copyright'}=
1101: 'default';
1102: }
1103: if ($metacourse ne 'none') {
1104: $r->print('Using: <strong> '.$env{$metacourse.".description"}."</strong> metadata framework<br />");
1105: }
1106: foreach my $field_name(@fields) {
1107:
1108: if (defined($env{'form.new_'.$field_name})) {
1109: $Apache::lonpublisher::metadatafields{$field_name}=
1110: join(',',&Apache::loncommon::get_env_multiple('form.new_'.$field_name));
1111: }
1112: if ($metacourse ne 'none') {
1113: # handle restrictions here
1114: if ($env{$metacourse.'.metadata.'.$field_name.'.options'} =~ m/active/){
1115: $output.=('<p>'.$lt{$field_name}.': '.
1116: &prettyinput($field_name,
1117: $Apache::lonpublisher::metadatafields{$field_name},
1118: 'new_'.$field_name,'defaultmeta',undef,undef,undef,undef,$metacourse).'</p>');
1119: } elsif ($field_name eq 'courserestricted') {
1120: $output.=(
1121: &prettyinput($field_name,
1122: $Apache::lonpublisher::metadatafields{$field_name},
1123: 'new_'.$field_name,'defaultmeta',undef,undef,undef,undef,$metacourse));
1124: }
1125: } else {
1126: if ($field_name ne 'courserestricted') {
1127: $output.=('<p>'.$lt{$field_name}.': '.
1128: &prettyinput($field_name,
1129: $Apache::lonpublisher::metadatafields{$field_name},
1130: 'new_'.$field_name,'defaultmeta').'</p>');
1131: } else {
1132: $output.=&prettyinput($field_name,
1133: $Apache::lonpublisher::metadatafields{$field_name},
1134: 'new_'.$field_name,'defaultmeta');
1135: }
1136: }
1137: }
1138: if ($env{'form.store'}) {
1139: my $mfh;
1140: my $formname='store';
1141: my $file_content;
1142: foreach my $meta_field (keys %env) {
1143: if (&Apache::loncommon::get_env_multiple('form.new_keywords')) {
1144: $Apache::lonpublisher::metadatafields{'keywords'} =
1145: join (',', &Apache::loncommon::get_env_multiple('form.new_keywords'));
1146: }
1147: }
1148: foreach (sort keys %Apache::lonpublisher::metadatafields) {
1149: next if ($_ =~ /\./);
1150: my $unikey=$_;
1151: $unikey=~/^([A-Za-z]+)/;
1152: my $tag=$1;
1153: $tag=~tr/A-Z/a-z/;
1154: $file_content.= "\n\<$tag";
1155: foreach (split(/\,/,
1156: $Apache::lonpublisher::metadatakeys{$unikey})
1157: ) {
1158: my $value=
1159: $Apache::lonpublisher::metadatafields{$unikey.'.'.$_};
1160: $value=~s/\"/\'\'/g;
1161: $file_content.=' '.$_.'="'.$value.'"' ;
1162: # print $mfh ' '.$_.'="'.$value.'"';
1163: }
1164: $file_content.= '>'.
1165: &HTML::Entities::encode
1166: ($Apache::lonpublisher::metadatafields{$unikey},
1167: '<>&"').
1168: '</'.$tag.'>';
1169: }
1170: if ($fn =~ /\/portfolio\//) {
1171: $fn =~ /\/portfolio\/(.*)$/;
1172: my $new_fn = '/'.$1;
1173: $env{'form.'.$formname}=$file_content."\n";
1174: $env{'form.'.$formname.'.filename'}=$new_fn;
1175: &Apache::lonnet::userfileupload('uploaddoc','',
1176: 'portfolio'.$env{'form.currentpath'});
1177: if (&Apache::lonnet::userfileupload($formname,'','portfolio') eq 'error: no uploaded file') {
1178: $r->print('<p><font color="red">'.
1179: &mt('Could not write metadata').', '.
1180: &mt('FAIL').'</font></p>');
1181: } else {
1182: $r->print('<p><font color="blue">'.&mt('Wrote Metadata').
1183: ' '.&Apache::lonlocal::locallocaltime(time).
1184: '</font></p>');
1185: }
1186: } else {
1187: if (! ($mfh=Apache::File->new('>'.$fn))) {
1188: $r->print('<p><font color="red">'.
1189: &mt('Could not write metadata').', '.
1190: &mt('FAIL').'</font></p>');
1191: } else {
1192: print $mfh $file_content;
1193: $r->print('<p><font color="blue">'.&mt('Wrote Metadata').
1194: ' '.&Apache::lonlocal::locallocaltime(time).
1195: '</font></p>');
1196: }
1197: }
1198: }
1199: $r->print($output.'<br /><input type="submit" name="store" value="'.
1200: &mt('Store Catalog Information').'">');
1201: }
1202: $r->print('</form>');
1203: return;
1204: }
1205:
1206: 1;
1207: __END__
1208:
1209:
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