1: # The LearningOnline Network with CAPA
2: # Metadata display handler
3: #
4: # $Id: lonmeta.pm,v 1.137 2005/12/13 11:52:37 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 $file_type=shift;
240: my %fields =
241: ('title' => 'Title',
242: 'author' =>'Author(s)',
243: 'authorspace' => 'Author Space',
244: 'modifyinguser' => 'Last Modifying User',
245: 'subject' => 'Subject',
246: 'standards' => 'Standards',
247: 'keywords' => 'Keyword(s)',
248: 'notes' => 'Notes',
249: 'abstract' => 'Abstract',
250: 'lowestgradelevel' => 'Lowest Grade Level',
251: 'highestgradelevel' => 'Highest Grade Level',
252: 'courserestricted' => 'Course Restricting Metadata');
253:
254: if (! defined($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 %courses;
295: my $output;
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: $output = '<h3>Associate resource with a course</h3><br />';
306: $output .= '<form action="" method="post">';
307: $output .= 'Select course <br />';
308: $output .= '<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: $output .= '<h3>Portfolio Meta-Data</h3><br />';
314: $output .= '<form action="" method="post">';
315: $output .= 'Select your course<br />';
316: $output .= '<select name="metacourse" >';
317: }
318: $key =~ m/(^.+)\.description$/;
319: $output .= '<option value="'.$1.'">';
320: $output .= $courses{$key};
321: $output .= '</option>';
322: }
323: unless ($meta_not_found) {
324: $output .= '</select><br />';
325: $output .= '<input type="submit" value="Associate" />';
326: $output .= '</form>';
327: }
328: return ($output);
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: } elsif ($uri=~/^\/\~/) {
657: # Construction space
658: $r->print(&Apache::loncommon::bodytag
659: ('Edit Catalog Information','','','',$resdomain));
660: &present_editable_metadata($r,$uri);
661: } else {
662: $r->print(&Apache::loncommon::bodytag
663: ('Catalog Information','','','',$resdomain));
664: &present_uneditable_metadata($r,$uri);
665: }
666: $r->print('</body></html>');
667: return OK;
668: }
669:
670: #####################################################
671: #####################################################
672: ### ###
673: ### Report Bombs ###
674: ### ###
675: #####################################################
676: #####################################################
677: sub report_bombs {
678: my ($r,$uri) = @_;
679: # Set document type
680: $uri =~ s:/adm/bombs/::;
681: $uri = &Apache::lonnet::declutter($uri);
682: $r->print('<h1>'.&Apache::lonnet::clutter($uri).'</h1>');
683: my ($domain,$author)=($uri=~/^(\w+)\/(\w+)\//);
684: if (&Apache::loncacc::constructaccess('/~'.$author.'/',$domain)) {
685: if ($env{'form.clearbombs'}) {
686: &Apache::lonmsg::clear_author_res_msg($uri);
687: }
688: my $clear=&mt('Clear all Messages in Subdirectory');
689: $r->print(<<ENDCLEAR);
690: <form method="post">
691: <input type="submit" name="clearbombs" value="$clear" />
692: </form>
693: ENDCLEAR
694: my %brokenurls =
695: &Apache::lonmsg::all_url_author_res_msg($author,$domain);
696: foreach (sort(keys(%brokenurls))) {
697: if ($_=~/^\Q$uri\E/) {
698: $r->print
699: ('<a href="'.&Apache::lonnet::clutter($_).'">'.$_.'</a>'.
700: &Apache::lonmsg::retrieve_author_res_msg($_).
701: '<hr />');
702: }
703: }
704: } else {
705: $r->print(&mt('Not authorized'));
706: }
707: return;
708: }
709:
710: #####################################################
711: #####################################################
712: ### ###
713: ### Uneditable Metadata Display ###
714: ### ###
715: #####################################################
716: #####################################################
717: sub present_uneditable_metadata {
718: my ($r,$uri) = @_;
719: #
720: my %content=();
721: # Read file
722: foreach (split(/\,/,&Apache::lonnet::metadata($uri,'keys'))) {
723: $content{$_}=&Apache::lonnet::metadata($uri,$_);
724: }
725: # Render Output
726: # displayed url
727: my ($thisversion)=($uri=~/\.(\d+)\.(\w+)\.meta$/);
728: $uri=~s/\.meta$//;
729: my $disuri=&Apache::lonnet::clutter($uri);
730: # version
731: my $currentversion=&Apache::lonnet::getversion($disuri);
732: my $versiondisplay='';
733: if ($thisversion) {
734: $versiondisplay=&mt('Version').': '.$thisversion.
735: ' ('.&mt('most recent version').': '.
736: ($currentversion>0 ?
737: $currentversion :
738: &mt('information not available')).')';
739: } else {
740: $versiondisplay='Version: '.$currentversion;
741: }
742: # crumbify displayed URL uri target prefix form size
743: $disuri=&Apache::lonhtmlcommon::crumbs($disuri,undef, undef, undef,'+1');
744: $disuri =~ s:<br />::g;
745: # obsolete
746: my $obsolete=$content{'obsolete'};
747: my $obsoletewarning='';
748: if (($obsolete) && ($env{'user.adv'})) {
749: $obsoletewarning='<p><font color="red">'.
750: &mt('This resource has been marked obsolete by the author(s)').
751: '</font></p>';
752: }
753: #
754: my %lt=&fieldnames();
755: my $table='';
756: my $title = $content{'title'};
757: if (! defined($title)) {
758: $title = 'Untitled Resource';
759: }
760: foreach ('title',
761: 'author',
762: 'subject',
763: 'keywords',
764: 'notes',
765: 'abstract',
766: 'lowestgradelevel',
767: 'highestgradelevel',
768: 'standards',
769: 'mime',
770: 'language',
771: 'creationdate',
772: 'lastrevisiondate',
773: 'owner',
774: 'copyright',
775: 'customdistributionfile',
776: 'sourceavail',
777: 'sourcerights',
778: 'obsolete',
779: 'obsoletereplacement') {
780: $table.='<tr><td bgcolor="#AAAAAA">'.$lt{$_}.
781: '</td><td bgcolor="#CCCCCC">'.
782: &prettyprint($_,$content{$_}).'</td></tr>';
783: delete $content{$_};
784: }
785: #
786: $r->print(<<ENDHEAD);
787: <h2>$title</h2>
788: <p>
789: $disuri<br />
790: $obsoletewarning
791: $versiondisplay
792: </p>
793: <table cellspacing="2" border="0">
794: $table
795: </table>
796: ENDHEAD
797: if ($env{'user.adv'}) {
798: &print_dynamic_metadata($r,$uri,\%content);
799: }
800: return;
801: }
802:
803: sub print_dynamic_metadata {
804: my ($r,$uri,$content) = @_;
805: #
806: my %content = %$content;
807: my %lt=&fieldnames();
808: #
809: my $description = 'Dynamic Metadata (updated periodically)';
810: $r->print('<h3>'.&mt($description).'</h3>'.
811: &mt('Processing'));
812: $r->rflush();
813: my %items=&fieldnames();
814: my %dynmeta=&dynamicmeta($uri);
815: #
816: # General Access and Usage Statistics
817: if (exists($dynmeta{'count'}) ||
818: exists($dynmeta{'sequsage'}) ||
819: exists($dynmeta{'comefrom'}) ||
820: exists($dynmeta{'goto'}) ||
821: exists($dynmeta{'course'})) {
822: $r->print('<h4>'.&mt('Access and Usage Statistics').'</h4>'.
823: '<table cellspacing="2" border="0">');
824: foreach ('count',
825: 'sequsage','sequsage_list',
826: 'comefrom','comefrom_list',
827: 'goto','goto_list',
828: 'course','course_list') {
829: $r->print('<tr><td bgcolor="#AAAAAA">'.$lt{$_}.'</td>'.
830: '<td bgcolor="#CCCCCC">'.
831: &prettyprint($_,$dynmeta{$_})."</td></tr>\n");
832: }
833: $r->print('</table>');
834: } else {
835: $r->print('<h4>'.&mt('No Access or Usages Statistics are available for this resource.').'</h4>');
836: }
837: #
838: # Assessment statistics
839: if ($uri=~/\.(problem|exam|quiz|assess|survey|form)$/) {
840: if (exists($dynmeta{'stdno'}) ||
841: exists($dynmeta{'avetries'}) ||
842: exists($dynmeta{'difficulty'}) ||
843: exists($dynmeta{'disc'})) {
844: # This is an assessment, print assessment data
845: $r->print('<h4>'.
846: &mt('Overall Assessment Statistical Data').
847: '</h4>'.
848: '<table cellspacing="2" border="0">');
849: $r->print('<tr><td bgcolor="#AAAAAA">'.$lt{'stdno'}.'</td>'.
850: '<td bgcolor="#CCCCCC">'.
851: &prettyprint('stdno',$dynmeta{'stdno'}).
852: '</td>'."</tr>\n");
853: foreach ('avetries','difficulty','disc') {
854: $r->print('<tr><td bgcolor="#AAAAAA">'.$lt{$_}.'</td>'.
855: '<td bgcolor="#CCCCCC">'.
856: &prettyprint($_,sprintf('%5.2f',$dynmeta{$_})).
857: '</td>'."</tr>\n");
858: }
859: $r->print('</table>');
860: }
861: if (exists($dynmeta{'stats'})) {
862: #
863: # New assessment statistics
864: $r->print('<h4>'.
865: &mt('Detailed Assessment Statistical Data').
866: '</h4>');
867: my $table = '<table cellspacing="2" border="0">'.
868: '<tr>'.
869: '<th>Course</th>'.
870: '<th>Section(s)</th>'.
871: '<th>Num Students</th>'.
872: '<th>Mean Tries</th>'.
873: '<th>Degree of Difficulty</th>'.
874: '<th>Degree of Discrimination</th>'.
875: '<th>Time of computation</th>'.
876: '</tr>'.$/;
877: foreach my $identifier (sort(keys(%{$dynmeta{'stats'}}))) {
878: my $data = $dynmeta{'stats'}->{$identifier};
879: my $course = $data->{'course'};
880: my %courseinfo = &Apache::lonnet::coursedescription($course);
881: if (! exists($courseinfo{'num'}) || $courseinfo{'num'} eq '') {
882: &Apache::lonnet::logthis('lookup for '.$course.' failed');
883: next;
884: }
885: $table .= '<tr>';
886: $table .=
887: '<td><nobr>'.$courseinfo{'description'}.'</nobr></td>';
888: $table .=
889: '<td align="right">'.$data->{'sections'}.'</td>';
890: $table .=
891: '<td align="right">'.$data->{'stdno'}.'</td>';
892: foreach ('avetries','difficulty','disc') {
893: $table .= '<td align="right">';
894: if (exists($data->{$_})) {
895: $table .= sprintf('%.2f',$data->{$_}).' ';
896: } else {
897: $table .= '';
898: }
899: $table .= '</td>';
900: }
901: $table .=
902: '<td><nobr>'.
903: &Apache::lonlocal::locallocaltime($data->{'timestamp'}).
904: '</nobr></td>';
905: $table .=
906: '</tr>'.$/;
907: }
908: $table .= '</table>'.$/;
909: $r->print($table);
910: } else {
911: $r->print('No new dynamic data found.');
912: }
913: } else {
914: $r->print('<h4>'.
915: &mt('No Assessment Statistical Data is available for this resource').
916: '</h4>');
917: }
918:
919: #
920: #
921: if (exists($dynmeta{'clear'}) ||
922: exists($dynmeta{'depth'}) ||
923: exists($dynmeta{'helpful'}) ||
924: exists($dynmeta{'correct'}) ||
925: exists($dynmeta{'technical'})){
926: $r->print('<h4>'.&mt('Evaluation Data').'</h4>'.
927: '<table cellspacing="2" border="0">');
928: foreach ('clear','depth','helpful','correct','technical') {
929: $r->print('<tr><td bgcolor="#AAAAAA">'.$lt{$_}.'</td>'.
930: '<td bgcolor="#CCCCCC">'.
931: &prettyprint($_,$dynmeta{$_})."</td></tr>\n");
932: }
933: $r->print('</table>');
934: } else {
935: $r->print('<h4>'.&mt('No Evaluation Data is available for this resource.').'</h4>');
936: }
937: $uri=~/^\/res\/(\w+)\/(\w+)\//;
938: if ((($env{'user.domain'} eq $1) && ($env{'user.name'} eq $2))
939: || ($env{'user.role.ca./'.$1.'/'.$2})) {
940: if (exists($dynmeta{'comments'})) {
941: $r->print('<h4>'.&mt('Evaluation Comments').' ('.
942: &mt('visible to author and co-authors only').
943: ')</h4>'.
944: '<blockquote>'.$dynmeta{'comments'}.'</blockquote>');
945: } else {
946: $r->print('<h4>'.&mt('There are no Evaluation Comments on this resource.').'</h4>');
947: }
948: my $bombs = &Apache::lonmsg::retrieve_author_res_msg($uri);
949: if (defined($bombs) && $bombs ne '') {
950: $r->print('<a name="bombs" /><h4>'.&mt('Error Messages').' ('.
951: &mt('visible to author and co-authors only').')'.
952: '</h4>'.$bombs);
953: } else {
954: $r->print('<h4>'.&mt('There are currently no Error Messages for this resource.').'</h4>');
955: }
956: }
957: #
958: # All other stuff
959: $r->print('<h3>'.
960: &mt('Additional Metadata (non-standard, parameters, exports)').
961: '</h3><table border="0" cellspacing="1">');
962: foreach (sort(keys(%content))) {
963: my $name=$_;
964: if ($name!~/\.display$/) {
965: my $display=&Apache::lonnet::metadata($uri,
966: $name.'.display');
967: if (! $display) {
968: $display=$name;
969: };
970: my $otherinfo='';
971: foreach ('name','part','type','default') {
972: if (defined(&Apache::lonnet::metadata($uri,
973: $name.'.'.$_))) {
974: $otherinfo.=' '.$_.'='.
975: &Apache::lonnet::metadata($uri,
976: $name.'.'.$_).'; ';
977: }
978: }
979: $r->print('<tr><td bgcolor="#bbccbb"><font size="-1" color="#556655">'.$display.'</font></td><td bgcolor="#ccddcc"><font size="-1" color="#556655">'.$content{$name});
980: if ($otherinfo) {
981: $r->print(' ('.$otherinfo.')');
982: }
983: $r->print("</font></td></tr>\n");
984: }
985: }
986: $r->print("</table>");
987: return;
988: }
989:
990:
991:
992: #####################################################
993: #####################################################
994: ### ###
995: ### Editable metadata display ###
996: ### ###
997: #####################################################
998: #####################################################
999: sub present_editable_metadata {
1000: my ($r,$uri, $file_type) = @_;
1001: # Construction Space Call
1002: # Header
1003: my $disuri=$uri;
1004: my $fn=&Apache::lonnet::filelocation('',$uri);
1005: my $metacourse;
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: if ($env{'form.metacourse'} ) {
1087: $Apache::lonpublisher::metadatafields{'courserestricted'} = $env{'form.metacourse'};
1088: $metacourse = $env{'form.metacourse'};
1089: } else {
1090: if (! $Apache::lonpublisher::metadatafields{'courserestricted'}) {
1091: $Apache::lonpublisher::metadatafields{'courserestricted'}=
1092: 'none';
1093: $metacourse = 'none';
1094: } else {
1095: $metacourse = $Apache::lonpublisher::metadatafields{'courserestricted'};
1096: }
1097: }
1098: if (! $Apache::lonpublisher::metadatafields{'copyright'}) {
1099: $Apache::lonpublisher::metadatafields{'copyright'}=
1100: 'default';
1101: }
1102: if ($metacourse ne 'none') {
1103: $r->print('Using: <strong> '.$env{$metacourse.".description"}.
1104: "</strong> metadata framework<br />");
1105: } else {
1106: $r->print("This resources is not associated with a metadata framework<br />");
1107: }
1108: foreach my $field_name(@fields) {
1109:
1110: if (defined($env{'form.new_'.$field_name})) {
1111: $Apache::lonpublisher::metadatafields{$field_name}=
1112: join(',',&Apache::loncommon::get_env_multiple('form.new_'.$field_name));
1113: }
1114: if ($metacourse ne 'none') {
1115: # handle restrictions here
1116: if ($env{$metacourse.'.metadata.'.$field_name.'.options'} =~ m/active/){
1117: $output.=('<p>'.$lt{$field_name}.': '.
1118: &prettyinput($field_name,
1119: $Apache::lonpublisher::metadatafields{$field_name},
1120: 'new_'.$field_name,'defaultmeta',undef,undef,undef,undef,$metacourse).'</p>');
1121: } elsif ($field_name eq 'courserestricted') {
1122: $output.=(
1123: &prettyinput($field_name,
1124: $Apache::lonpublisher::metadatafields{$field_name},
1125: 'new_'.$field_name,'defaultmeta',undef,undef,undef,undef,$metacourse));
1126: }
1127: } else {
1128: if ($field_name ne 'courserestricted') {
1129: $output.=('<p>'.$lt{$field_name}.': '.
1130: &prettyinput($field_name,
1131: $Apache::lonpublisher::metadatafields{$field_name},
1132: 'new_'.$field_name,'defaultmeta').'</p>');
1133: } else {
1134: $output.=&prettyinput($field_name,
1135: $Apache::lonpublisher::metadatafields{$field_name},
1136: 'new_'.$field_name,'defaultmeta');
1137: }
1138: }
1139: }
1140:
1141: if ($env{'form.store'}) {
1142: my $mfh;
1143: my $formname='store';
1144: my $file_content;
1145: foreach my $meta_field (keys %env) {
1146: if (&Apache::loncommon::get_env_multiple('form.new_keywords')) {
1147: $Apache::lonpublisher::metadatafields{'keywords'} =
1148: join (',', &Apache::loncommon::get_env_multiple('form.new_keywords'));
1149: }
1150: }
1151: foreach (sort keys %Apache::lonpublisher::metadatafields) {
1152: next if ($_ =~ /\./);
1153: my $unikey=$_;
1154: $unikey=~/^([A-Za-z]+)/;
1155: my $tag=$1;
1156: $tag=~tr/A-Z/a-z/;
1157: $file_content.= "\n\<$tag";
1158: foreach (split(/\,/,
1159: $Apache::lonpublisher::metadatakeys{$unikey})
1160: ) {
1161: my $value=
1162: $Apache::lonpublisher::metadatafields{$unikey.'.'.$_};
1163: $value=~s/\"/\'\'/g;
1164: $file_content.=' '.$_.'="'.$value.'"' ;
1165: # print $mfh ' '.$_.'="'.$value.'"';
1166: }
1167: $file_content.= '>'.
1168: &HTML::Entities::encode
1169: ($Apache::lonpublisher::metadatafields{$unikey},
1170: '<>&"').
1171: '</'.$tag.'>';
1172: }
1173: if ($fn =~ /\/portfolio\//) {
1174: $fn =~ /\/portfolio\/(.*)$/;
1175: my $new_fn = '/'.$1;
1176: $env{'form.'.$formname}=$file_content."\n";
1177: $env{'form.'.$formname.'.filename'}=$new_fn;
1178: &Apache::lonnet::userfileupload('uploaddoc','',
1179: 'portfolio'.$env{'form.currentpath'});
1180: if (&Apache::lonnet::userfileupload($formname,'','portfolio') eq 'error: no uploaded file') {
1181: $r->print('<p><font color="red">'.
1182: &mt('Could not write metadata').', '.
1183: &mt('FAIL').'</font></p>');
1184: } else {
1185: $r->print('<p><font color="blue">'.&mt('Wrote Metadata').
1186: ' '.&Apache::lonlocal::locallocaltime(time).
1187: '</font></p>');
1188: }
1189: } else {
1190: if (! ($mfh=Apache::File->new('>'.$fn))) {
1191: $r->print('<p><font color="red">'.
1192: &mt('Could not write metadata').', '.
1193: &mt('FAIL').'</font></p>');
1194: } else {
1195: print $mfh $file_content;
1196: $r->print('<p><font color="blue">'.&mt('Wrote Metadata').
1197: ' '.&Apache::lonlocal::locallocaltime(time).
1198: '</font></p>');
1199: }
1200: }
1201: }
1202: $r->print($output.'<br /><input type="submit" name="store" value="'.
1203: &mt('Store Catalog Information').'">');
1204:
1205: }
1206: $r->print('</form>');
1207: if ($metacourse eq 'none') {
1208: $r->print(&select_course());
1209: }
1210: return;
1211: }
1212:
1213: 1;
1214: __END__
1215:
1216:
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