1: # The LearningOnline Network with CAPA
2: # Metadata display handler
3: #
4: # $Id: lonmeta.pm,v 1.125 2005/11/11 21:25:50 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 $file_type=shift;
240: my %fields =
241: ('title' => 'Title',
242: 'author' =>'Author(s)',
243: 'authorspace' => 'Author Space',
244: 'modifyinguser' => 'Last Modifying User',
245: 'subject' => 'Subject',
246: 'keywords' => 'Keyword(s)',
247: 'notes' => 'Notes',
248: 'abstract' => 'Abstract',
249: 'lowestgradelevel' => 'Lowest Grade Level',
250: 'highestgradelevel' => 'Highest Grade Level',
251: 'courserestricted' => 'Course Restricting Metadata');
252:
253: if (! defined($file_type) || $file_type ne 'portfolio') {
254: %fields =
255: (%fields,
256: 'domain' => 'Domain',
257: 'standards' => 'Standards',
258: 'mime' => 'MIME Type',
259: 'language' => 'Language',
260: 'creationdate' => 'Creation Date',
261: 'lastrevisiondate' => 'Last Revision Date',
262: 'owner' => 'Publisher/Owner',
263: 'copyright' => 'Copyright/Distribution',
264: 'customdistributionfile' => 'Custom Distribution File',
265: 'sourceavail' => 'Source Available',
266: 'sourcerights' => 'Source Custom Distribution File',
267: 'obsolete' => 'Obsolete',
268: 'obsoletereplacement' => 'Suggested Replacement for Obsolete File',
269: 'count' => 'Network-wide number of accesses (hits)',
270: 'course' => 'Network-wide number of courses using resource',
271: 'course_list' => 'Network-wide courses using resource',
272: 'sequsage' => 'Number of resources using or importing resource',
273: 'sequsage_list' => 'Resources using or importing resource',
274: 'goto' => 'Number of resources that follow this resource in maps',
275: 'goto_list' => 'Resources that follow this resource in maps',
276: 'comefrom' => 'Number of resources that lead up to this resource in maps',
277: 'comefrom_list' => 'Resources that lead up to this resource in maps',
278: 'clear' => 'Material presented in clear way',
279: 'depth' => 'Material covered with sufficient depth',
280: 'helpful' => 'Material is helpful',
281: 'correct' => 'Material appears to be correct',
282: 'technical' => 'Resource is technically correct',
283: 'avetries' => 'Average number of tries till solved',
284: 'stdno' => 'Total number of students who have worked on this problem',
285: 'difficulty' => 'Degree of difficulty',
286: 'disc' => 'Degree of discrimination',
287: 'dependencies' => 'Resources used by this resource',
288: );
289: }
290: return &Apache::lonlocal::texthash(%fields);
291: }
292:
293: sub select_course {
294: my ($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>Course Related Meta-Data</h3><br />');
306: $r->print('<form action="" method="post">');
307: $r->print('Select course restrictions<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="Assign Portfolio Metadata" />');
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: $size = 80;
485: }
486: if (defined($course_key)) {
487: my $stu_add;
488: my $only_one;
489: my $values = $env{$course_key.'.metadata.'.$_.'.values'};
490: if ($env{$course_key.'.metadata.'.$_.'.options'} =~ m/stuadd/) {
491: $stu_add = 'true';
492: }
493: if ($env{$course_key.'.metadata.'.$_.'.options'} =~ m/onlyone/) {
494: $only_one = 'true';
495: }
496: if ($type eq 'author') {
497: return
498: '<input type="text" name="'.$fieldname.'" size="'.$size.'" '.
499: 'value="'.$value.'" />'.
500: &relatedfield(1,$relatedsearchflag,$relatedsep,$fieldname,
501: $relatedvalue);
502:
503: }
504: if ($type eq 'courserestricted') {
505: return ('<input type="hidden" name="new_courserestricted" value="'.$course_key.'" />');
506: }
507: if ($type eq 'authorspace') {
508: }
509: if ($type eq 'modifyinguser') {
510: }
511: if ($type eq 'subject') {
512: }
513: if ($type eq 'keywords') {
514: my %hash;
515: my $def;
516: my @cur_values;
517: foreach (split(/,/,$value)) {
518: $_ =~ s/^\s+//;
519: push(@cur_values,$_);
520: }
521: foreach (split(/,/,$values)) {
522: $_ =~ s/^\s+//;
523: $hash{$_} = $_;
524: }
525: if ($only_one) {
526: return(&Apache::loncommon::select_form($def,'new_keywords',%hash));
527: } else {
528: return (&Apache::loncommon::multiple_select_form('new_keywords',\@cur_values,undef,\%hash));
529: }
530: }
531: if ($type eq 'notes') {
532: }
533: if ($type eq 'abstract') {
534: }
535:
536: if (($type eq 'lowestgradelevel') ||
537: ($type eq 'highestgradelevel')) {
538: return &Apache::loncommon::select_level_form($value,$fieldname).
539: &relatedfield(0,$relatedsearchflag,$relatedsep);
540: }
541: return();
542: }
543: # Language
544: if ($type eq 'language') {
545: return &selectbox($fieldname,
546: $value,
547: \&Apache::loncommon::languagedescription,
548: (&Apache::loncommon::languageids)).
549: &relatedfield(0,$relatedsearchflag,$relatedsep);
550: }
551: # Copyright
552: if ($type eq 'copyright') {
553: return &selectbox($fieldname,
554: $value,
555: \&Apache::loncommon::copyrightdescription,
556: (&Apache::loncommon::copyrightids)).
557: &relatedfield(0,$relatedsearchflag,$relatedsep);
558: }
559: # Source Copyright
560: if ($type eq 'sourceavail') {
561: return &selectbox($fieldname,
562: $value,
563: \&Apache::loncommon::source_copyrightdescription,
564: (&Apache::loncommon::source_copyrightids)).
565: &relatedfield(0,$relatedsearchflag,$relatedsep);
566: }
567: # Gradelevels
568: if (($type eq 'lowestgradelevel') ||
569: ($type eq 'highestgradelevel')) {
570: return &Apache::loncommon::select_level_form($value,$fieldname).
571: &relatedfield(0,$relatedsearchflag,$relatedsep);
572: }
573: # Obsolete
574: if ($type eq 'obsolete') {
575: return '<input type="checkbox" name="'.$fieldname.'"'.
576: ($value?' checked="1"':'').' />'.
577: &relatedfield(0,$relatedsearchflag,$relatedsep);
578: }
579: # Obsolete replacement file
580: if ($type eq 'obsoletereplacement') {
581: return '<input type="text" name="'.$fieldname.
582: '" size="60" value="'.$value.'" /><a href="javascript:openbrowser'.
583: "('".$formname."','".$fieldname."'".
584: ",'')\">".&mt('Select').'</a>'.
585: &relatedfield(0,$relatedsearchflag,$relatedsep);
586: }
587: # Customdistribution file
588: if ($type eq 'customdistributionfile') {
589: return '<input type="text" name="'.$fieldname.
590: '" size="60" value="'.$value.'" /><a href="javascript:openbrowser'.
591: "('".$formname."','".$fieldname."'".
592: ",'rights')\">".&mt('Select').'</a>'.
593: &relatedfield(0,$relatedsearchflag,$relatedsep);
594: }
595: # Source Customdistribution file
596: if ($type eq 'sourcerights') {
597: return '<input type="text" name="'.$fieldname.
598: '" size="60" value="'.$value.'" /><a href="javascript:openbrowser'.
599: "('".$formname."','".$fieldname."'".
600: ",'rights')\">".&mt('Select').'</a>'.
601: &relatedfield(0,$relatedsearchflag,$relatedsep);
602: }
603: # Dates
604: if (($type eq 'creationdate') ||
605: ($type eq 'lastrevisiondate')) {
606: return
607: &Apache::lonhtmlcommon::date_setter($formname,$fieldname,$value).
608: &relatedfield(0,$relatedsearchflag,$relatedsep);
609: }
610: # No pretty input found
611: $value=~s/^\s+//gs;
612: $value=~s/\s+$//gs;
613: $value=~s/\s+/ /gs;
614: $value=~s/\"/\"\;/gs;
615: return
616: '<input type="text" name="'.$fieldname.'" size="'.$size.'" '.
617: 'value="'.$value.'" />'.
618: &relatedfield(1,$relatedsearchflag,$relatedsep,$fieldname,
619: $relatedvalue);
620: }
621:
622: # Main Handler
623: sub handler {
624: my $r=shift;
625: #
626: my $uri=$r->uri;
627: #
628: # Set document type
629: &Apache::loncommon::content_type($r,'text/html');
630: $r->send_http_header;
631: return OK if $r->header_only;
632: #
633: my ($resdomain,$resuser)=
634: (&Apache::lonnet::declutter($uri)=~/^(\w+)\/(\w+)\//);
635: my $html=&Apache::lonxml::xmlbegin();
636: $r->print($html.'<head><title>'.
637: 'Catalog Information'.
638: '</title></head>');
639: if ($uri=~m:/adm/bombs/(.*)$:) {
640: $r->print(&Apache::loncommon::bodytag('Error Messages'));
641: # Looking for all bombs?
642: &report_bombs($r,$uri);
643: } elsif ($uri=~/\/portfolio\//) {
644: ($resdomain,$resuser)=
645: (&Apache::lonnet::declutter($uri)=~m|^(\w+)/(\w+)/portfolio|);
646: $r->print(&Apache::loncommon::bodytag
647: ('Edit Portfolio File Information','','','',$resdomain));
648: &present_editable_metadata($r,$uri,'portfolio');
649: &select_course($r);
650: } elsif ($uri=~/^\/\~/) {
651: # Construction space
652: $r->print(&Apache::loncommon::bodytag
653: ('Edit Catalog Information','','','',$resdomain));
654: &present_editable_metadata($r,$uri);
655: } else {
656: $r->print(&Apache::loncommon::bodytag
657: ('Catalog Information','','','',$resdomain));
658: &present_uneditable_metadata($r,$uri);
659: }
660: $r->print('</body></html>');
661: return OK;
662: }
663:
664: #####################################################
665: #####################################################
666: ### ###
667: ### Report Bombs ###
668: ### ###
669: #####################################################
670: #####################################################
671: sub report_bombs {
672: my ($r,$uri) = @_;
673: # Set document type
674: $uri =~ s:/adm/bombs/::;
675: $uri = &Apache::lonnet::declutter($uri);
676: $r->print('<h1>'.&Apache::lonnet::clutter($uri).'</h1>');
677: my ($domain,$author)=($uri=~/^(\w+)\/(\w+)\//);
678: if (&Apache::loncacc::constructaccess('/~'.$author.'/',$domain)) {
679: if ($env{'form.clearbombs'}) {
680: &Apache::lonmsg::clear_author_res_msg($uri);
681: }
682: my $clear=&mt('Clear all Messages in Subdirectory');
683: $r->print(<<ENDCLEAR);
684: <form method="post">
685: <input type="submit" name="clearbombs" value="$clear" />
686: </form>
687: ENDCLEAR
688: my %brokenurls =
689: &Apache::lonmsg::all_url_author_res_msg($author,$domain);
690: foreach (sort(keys(%brokenurls))) {
691: if ($_=~/^\Q$uri\E/) {
692: $r->print
693: ('<a href="'.&Apache::lonnet::clutter($_).'">'.$_.'</a>'.
694: &Apache::lonmsg::retrieve_author_res_msg($_).
695: '<hr />');
696: }
697: }
698: } else {
699: $r->print(&mt('Not authorized'));
700: }
701: return;
702: }
703:
704: #####################################################
705: #####################################################
706: ### ###
707: ### Uneditable Metadata Display ###
708: ### ###
709: #####################################################
710: #####################################################
711: sub present_uneditable_metadata {
712: my ($r,$uri) = @_;
713: #
714: my %content=();
715: # Read file
716: foreach (split(/\,/,&Apache::lonnet::metadata($uri,'keys'))) {
717: $content{$_}=&Apache::lonnet::metadata($uri,$_);
718: }
719: # Render Output
720: # displayed url
721: my ($thisversion)=($uri=~/\.(\d+)\.(\w+)\.meta$/);
722: $uri=~s/\.meta$//;
723: my $disuri=&Apache::lonnet::clutter($uri);
724: # version
725: my $currentversion=&Apache::lonnet::getversion($disuri);
726: my $versiondisplay='';
727: if ($thisversion) {
728: $versiondisplay=&mt('Version').': '.$thisversion.
729: ' ('.&mt('most recent version').': '.
730: ($currentversion>0 ?
731: $currentversion :
732: &mt('information not available')).')';
733: } else {
734: $versiondisplay='Version: '.$currentversion;
735: }
736: # crumbify displayed URL uri target prefix form size
737: $disuri=&Apache::lonhtmlcommon::crumbs($disuri,undef, undef, undef,'+1');
738: $disuri =~ s:<br />::g;
739: # obsolete
740: my $obsolete=$content{'obsolete'};
741: my $obsoletewarning='';
742: if (($obsolete) && ($env{'user.adv'})) {
743: $obsoletewarning='<p><font color="red">'.
744: &mt('This resource has been marked obsolete by the author(s)').
745: '</font></p>';
746: }
747: #
748: my %lt=&fieldnames();
749: my $table='';
750: my $title = $content{'title'};
751: if (! defined($title)) {
752: $title = 'Untitled Resource';
753: }
754: foreach ('title',
755: 'author',
756: 'subject',
757: 'keywords',
758: 'notes',
759: 'abstract',
760: 'lowestgradelevel',
761: 'highestgradelevel',
762: 'standards',
763: 'mime',
764: 'language',
765: 'creationdate',
766: 'lastrevisiondate',
767: 'owner',
768: 'copyright',
769: 'customdistributionfile',
770: 'sourceavail',
771: 'sourcerights',
772: 'obsolete',
773: 'obsoletereplacement') {
774: $table.='<tr><td bgcolor="#AAAAAA">'.$lt{$_}.
775: '</td><td bgcolor="#CCCCCC">'.
776: &prettyprint($_,$content{$_}).'</td></tr>';
777: delete $content{$_};
778: }
779: #
780: $r->print(<<ENDHEAD);
781: <h2>$title</h2>
782: <p>
783: $disuri<br />
784: $obsoletewarning
785: $versiondisplay
786: </p>
787: <table cellspacing="2" border="0">
788: $table
789: </table>
790: ENDHEAD
791: if ($env{'user.adv'}) {
792: &print_dynamic_metadata($r,$uri,\%content);
793: }
794: return;
795: }
796:
797: sub print_dynamic_metadata {
798: my ($r,$uri,$content) = @_;
799: #
800: my %content = %$content;
801: my %lt=&fieldnames();
802: #
803: my $description = 'Dynamic Metadata (updated periodically)';
804: $r->print('<h3>'.&mt($description).'</h3>'.
805: &mt('Processing'));
806: $r->rflush();
807: my %items=&fieldnames();
808: my %dynmeta=&dynamicmeta($uri);
809: #
810: # General Access and Usage Statistics
811: if (exists($dynmeta{'count'}) ||
812: exists($dynmeta{'sequsage'}) ||
813: exists($dynmeta{'comefrom'}) ||
814: exists($dynmeta{'goto'}) ||
815: exists($dynmeta{'course'})) {
816: $r->print('<h4>'.&mt('Access and Usage Statistics').'</h4>'.
817: '<table cellspacing="2" border="0">');
818: foreach ('count',
819: 'sequsage','sequsage_list',
820: 'comefrom','comefrom_list',
821: 'goto','goto_list',
822: 'course','course_list') {
823: $r->print('<tr><td bgcolor="#AAAAAA">'.$lt{$_}.'</td>'.
824: '<td bgcolor="#CCCCCC">'.
825: &prettyprint($_,$dynmeta{$_})."</td></tr>\n");
826: }
827: $r->print('</table>');
828: } else {
829: $r->print('<h4>'.&mt('No Access or Usages Statistics are available for this resource.').'</h4>');
830: }
831: #
832: # Assessment statistics
833: if ($uri=~/\.(problem|exam|quiz|assess|survey|form)$/) {
834: if (exists($dynmeta{'stdno'}) ||
835: exists($dynmeta{'avetries'}) ||
836: exists($dynmeta{'difficulty'}) ||
837: exists($dynmeta{'disc'})) {
838: # This is an assessment, print assessment data
839: $r->print('<h4>'.
840: &mt('Overall Assessment Statistical Data').
841: '</h4>'.
842: '<table cellspacing="2" border="0">');
843: $r->print('<tr><td bgcolor="#AAAAAA">'.$lt{'stdno'}.'</td>'.
844: '<td bgcolor="#CCCCCC">'.
845: &prettyprint('stdno',$dynmeta{'stdno'}).
846: '</td>'."</tr>\n");
847: foreach ('avetries','difficulty','disc') {
848: $r->print('<tr><td bgcolor="#AAAAAA">'.$lt{$_}.'</td>'.
849: '<td bgcolor="#CCCCCC">'.
850: &prettyprint($_,sprintf('%5.2f',$dynmeta{$_})).
851: '</td>'."</tr>\n");
852: }
853: $r->print('</table>');
854: }
855: if (exists($dynmeta{'stats'})) {
856: #
857: # New assessment statistics
858: $r->print('<h4>'.
859: &mt('Detailed Assessment Statistical Data').
860: '</h4>');
861: my $table = '<table cellspacing="2" border="0">'.
862: '<tr>'.
863: '<th>Course</th>'.
864: '<th>Section(s)</th>'.
865: '<th>Num Students</th>'.
866: '<th>Mean Tries</th>'.
867: '<th>Degree of Difficulty</th>'.
868: '<th>Degree of Discrimination</th>'.
869: '<th>Time of computation</th>'.
870: '</tr>'.$/;
871: foreach my $identifier (sort(keys(%{$dynmeta{'stats'}}))) {
872: my $data = $dynmeta{'stats'}->{$identifier};
873: my $course = $data->{'course'};
874: my %courseinfo = &Apache::lonnet::coursedescription($course);
875: if (! exists($courseinfo{'num'}) || $courseinfo{'num'} eq '') {
876: &Apache::lonnet::logthis('lookup for '.$course.' failed');
877: next;
878: }
879: $table .= '<tr>';
880: $table .=
881: '<td><nobr>'.$courseinfo{'description'}.'</nobr></td>';
882: $table .=
883: '<td align="right">'.$data->{'sections'}.'</td>';
884: $table .=
885: '<td align="right">'.$data->{'stdno'}.'</td>';
886: foreach ('avetries','difficulty','disc') {
887: $table .= '<td align="right">';
888: if (exists($data->{$_})) {
889: $table .= sprintf('%.2f',$data->{$_}).' ';
890: } else {
891: $table .= '';
892: }
893: $table .= '</td>';
894: }
895: $table .=
896: '<td><nobr>'.
897: &Apache::lonlocal::locallocaltime($data->{'timestamp'}).
898: '</nobr></td>';
899: $table .=
900: '</tr>'.$/;
901: }
902: $table .= '</table>'.$/;
903: $r->print($table);
904: } else {
905: $r->print('No new dynamic data found.');
906: }
907: } else {
908: $r->print('<h4>'.
909: &mt('No Assessment Statistical Data is available for this resource').
910: '</h4>');
911: }
912:
913: #
914: #
915: if (exists($dynmeta{'clear'}) ||
916: exists($dynmeta{'depth'}) ||
917: exists($dynmeta{'helpful'}) ||
918: exists($dynmeta{'correct'}) ||
919: exists($dynmeta{'technical'})){
920: $r->print('<h4>'.&mt('Evaluation Data').'</h4>'.
921: '<table cellspacing="2" border="0">');
922: foreach ('clear','depth','helpful','correct','technical') {
923: $r->print('<tr><td bgcolor="#AAAAAA">'.$lt{$_}.'</td>'.
924: '<td bgcolor="#CCCCCC">'.
925: &prettyprint($_,$dynmeta{$_})."</td></tr>\n");
926: }
927: $r->print('</table>');
928: } else {
929: $r->print('<h4>'.&mt('No Evaluation Data is available for this resource.').'</h4>');
930: }
931: $uri=~/^\/res\/(\w+)\/(\w+)\//;
932: if ((($env{'user.domain'} eq $1) && ($env{'user.name'} eq $2))
933: || ($env{'user.role.ca./'.$1.'/'.$2})) {
934: if (exists($dynmeta{'comments'})) {
935: $r->print('<h4>'.&mt('Evaluation Comments').' ('.
936: &mt('visible to author and co-authors only').
937: ')</h4>'.
938: '<blockquote>'.$dynmeta{'comments'}.'</blockquote>');
939: } else {
940: $r->print('<h4>'.&mt('There are no Evaluation Comments on this resource.').'</h4>');
941: }
942: my $bombs = &Apache::lonmsg::retrieve_author_res_msg($uri);
943: if (defined($bombs) && $bombs ne '') {
944: $r->print('<a name="bombs" /><h4>'.&mt('Error Messages').' ('.
945: &mt('visible to author and co-authors only').')'.
946: '</h4>'.$bombs);
947: } else {
948: $r->print('<h4>'.&mt('There are currently no Error Messages for this resource.').'</h4>');
949: }
950: }
951: #
952: # All other stuff
953: $r->print('<h3>'.
954: &mt('Additional Metadata (non-standard, parameters, exports)').
955: '</h3><table border="0" cellspacing="1">');
956: foreach (sort(keys(%content))) {
957: my $name=$_;
958: if ($name!~/\.display$/) {
959: my $display=&Apache::lonnet::metadata($uri,
960: $name.'.display');
961: if (! $display) {
962: $display=$name;
963: };
964: my $otherinfo='';
965: foreach ('name','part','type','default') {
966: if (defined(&Apache::lonnet::metadata($uri,
967: $name.'.'.$_))) {
968: $otherinfo.=' '.$_.'='.
969: &Apache::lonnet::metadata($uri,
970: $name.'.'.$_).'; ';
971: }
972: }
973: $r->print('<tr><td bgcolor="#bbccbb"><font size="-1" color="#556655">'.$display.'</font></td><td bgcolor="#ccddcc"><font size="-1" color="#556655">'.$content{$name});
974: if ($otherinfo) {
975: $r->print(' ('.$otherinfo.')');
976: }
977: $r->print("</font></td></tr>\n");
978: }
979: }
980: $r->print("</table>");
981: return;
982: }
983:
984:
985:
986: #####################################################
987: #####################################################
988: ### ###
989: ### Editable metadata display ###
990: ### ###
991: #####################################################
992: #####################################################
993: sub present_editable_metadata {
994: my ($r,$uri, $file_type) = @_;
995: # Construction Space Call
996: # Header
997: my $disuri=$uri;
998: my $fn=&Apache::lonnet::filelocation('',$uri);
999: $disuri=~s/^\/\~/\/priv\//;
1000: $disuri=~s/\.meta$//;
1001: $disuri=~s|^/editupload||;
1002: my $target=$uri;
1003: $target=~s/^\/\~/\/res\/$env{'request.role.domain'}\//;
1004: $target=~s/\.meta$//;
1005: my $bombs=&Apache::lonmsg::retrieve_author_res_msg($target);
1006: if ($bombs) {
1007: my $showdel=1;
1008: if ($env{'form.delmsg'}) {
1009: if (&Apache::lonmsg::del_url_author_res_msg($target) eq 'ok') {
1010: $bombs=&mt('Messages deleted.');
1011: $showdel=0;
1012: } else {
1013: $bombs=&mt('Error deleting messages');
1014: }
1015: }
1016: if ($env{'form.clearmsg'}) {
1017: my $cleardir=$target;
1018: $cleardir=~s/\/[^\/]+$/\//;
1019: if (&Apache::lonmsg::clear_author_res_msg($cleardir) eq 'ok') {
1020: $bombs=&mt('Messages cleared.');
1021: $showdel=0;
1022: } else {
1023: $bombs=&mt('Error clearing messages');
1024: }
1025: }
1026: my $del=&mt('Delete Messages for this Resource');
1027: my $clear=&mt('Clear all Messages in Subdirectory');
1028: my $goback=&mt('Back to Source File');
1029: $r->print(<<ENDBOMBS);
1030: <h1>$disuri</h1>
1031: <form method="post" name="defaultmeta">
1032: ENDBOMBS
1033: if ($showdel) {
1034: $r->print(<<ENDDEL);
1035: <input type="submit" name="delmsg" value="$del" />
1036: <input type="submit" name="clearmsg" value="$clear" />
1037: ENDDEL
1038: } else {
1039: $r->print('<a href="'.$disuri.'" />'.$goback.'</a>');
1040: }
1041: $r->print('<br />'.$bombs);
1042: } else {
1043: my $displayfile='Catalog Information for '.$disuri;
1044: if ($disuri=~/\/default$/) {
1045: my $dir=$disuri;
1046: $dir=~s/default$//;
1047: $displayfile=
1048: &mt('Default Cataloging Information for Directory').' '.
1049: $dir;
1050: }
1051: %Apache::lonpublisher::metadatafields=();
1052: %Apache::lonpublisher::metadatakeys=();
1053: my $result=&Apache::lonnet::getfile($fn);
1054: if ($result == -1){
1055: $r->print('Creating new '.$disuri);
1056: } else {
1057: &Apache::lonpublisher::metaeval($result);
1058: }
1059: $r->print(<<ENDEDIT);
1060: <h1>$displayfile</h1>
1061: <form method="post" name="defaultmeta">
1062: ENDEDIT
1063: $r->print('<script language="JavaScript">'.
1064: &Apache::loncommon::browser_and_searcher_javascript().
1065: '</script>');
1066: my %lt=&fieldnames($file_type);
1067: my $output;
1068: my @fields;
1069: if ($file_type eq 'portfolio') {
1070: @fields = ('author','title','subject','keywords','abstract','notes','lowestgradelevel',
1071: 'highestgradelevel','courserestricted');
1072: } else {
1073: @fields = ('author','title','subject','keywords','abstract','notes',
1074: 'copyright','customdistributionfile','language',
1075: 'standards',
1076: 'lowestgradelevel','highestgradelevel','sourceavail','sourcerights',
1077: 'obsolete','obsoletereplacement');
1078: }
1079: my $metacourse;
1080: if ($env{'form.metacourse'} ) {
1081: $Apache::lonpublisher::metadatafields{'courserestricted'} = $env{'form.metacourse'};
1082: $metacourse = $env{'form.metacourse'};
1083: } else {
1084: if (! $Apache::lonpublisher::metadatafields{'courserestricted'}) {
1085: $Apache::lonpublisher::metadatafields{'courserestricted'}=
1086: 'none';
1087: $metacourse = 'none';
1088: } else {
1089: $metacourse = $Apache::lonpublisher::metadatafields{'courserestricted'};
1090: }
1091: }
1092: if (! $Apache::lonpublisher::metadatafields{'copyright'}) {
1093: $Apache::lonpublisher::metadatafields{'copyright'}=
1094: 'default';
1095: }
1096: if ($metacourse ne 'none') {
1097: $r->print('Document metadata restricted by :<strong> '.$env{$metacourse.".description"}."</strong><br />");
1098: }
1099:
1100: foreach (@fields) {
1101: if (defined($env{'form.new_'.$_})) {
1102: $Apache::lonpublisher::metadatafields{$_}=
1103: join(',',&Apache::loncommon::get_env_multiple('form.new_'.$_));
1104: }
1105: if ($metacourse ne 'none') {
1106: # handle restrictions here
1107: if (($env{$metacourse.'.metadata.'.$_.'.options'} =~ m/active/)||
1108: ($_ eq 'courserestricted')) {
1109: $output.=('<p>'.$lt{$_}.': '.
1110: &prettyinput($_,
1111: $Apache::lonpublisher::metadatafields{$_},
1112: 'new_'.$_,'defaultmeta',undef,undef,undef,undef,$metacourse).'</p>');
1113: }
1114: } else {
1115: $output.=('<p>'.$lt{$_}.': '.
1116: &prettyinput($_,
1117: $Apache::lonpublisher::metadatafields{$_},
1118: 'new_'.$_,'defaultmeta').'</p>');
1119: }
1120: }
1121: if ($env{'form.store'}) {
1122: my $mfh;
1123: my $formname='store';
1124: my $file_content;
1125: foreach my $meta_field (keys %env) {
1126: if (&Apache::loncommon::get_env_multiple('form.new_keywords')) {
1127: $Apache::lonpublisher::metadatafields{'keywords'} =
1128: join (',', &Apache::loncommon::get_env_multiple('form.new_keywords'));
1129: }
1130: }
1131: foreach (sort keys %Apache::lonpublisher::metadatafields) {
1132: next if ($_ =~ /\./);
1133: my $unikey=$_;
1134: $unikey=~/^([A-Za-z]+)/;
1135: my $tag=$1;
1136: $tag=~tr/A-Z/a-z/;
1137: $file_content.= "\n\<$tag";
1138: foreach (split(/\,/,
1139: $Apache::lonpublisher::metadatakeys{$unikey})
1140: ) {
1141: my $value=
1142: $Apache::lonpublisher::metadatafields{$unikey.'.'.$_};
1143: $value=~s/\"/\'\'/g;
1144: $file_content.=' '.$_.'="'.$value.'"' ;
1145: # print $mfh ' '.$_.'="'.$value.'"';
1146: }
1147: $file_content.= '>'.
1148: &HTML::Entities::encode
1149: ($Apache::lonpublisher::metadatafields{$unikey},
1150: '<>&"').
1151: '</'.$tag.'>';
1152: }
1153: if ($fn =~ /\/portfolio\//) {
1154: $fn =~ /\/portfolio\/(.*)$/;
1155: my $new_fn = '/'.$1;
1156: $env{'form.'.$formname}=$file_content;
1157: $env{'form.'.$formname.'.filename'}=$new_fn;
1158: &Apache::lonnet::userfileupload('uploaddoc','',
1159: 'portfolio'.$env{'form.currentpath'});
1160: if (&Apache::lonnet::userfileupload($formname,'','portfolio') eq 'error: no uploaded file') {
1161: $r->print('<p><font color="red">'.
1162: &mt('Could not write metadata').', '.
1163: &mt('FAIL').'</font></p>');
1164: } else {
1165: $r->print('<p><font color="blue">'.&mt('Wrote Metadata').
1166: ' '.&Apache::lonlocal::locallocaltime(time).
1167: '</font></p>');
1168: }
1169: } else {
1170: if (! ($mfh=Apache::File->new('>'.$fn))) {
1171: $r->print('<p><font color="red">'.
1172: &mt('Could not write metadata').', '.
1173: &mt('FAIL').'</font></p>');
1174: } else {
1175: print $mfh $file_content;
1176: $r->print('<p><font color="blue">'.&mt('Wrote Metadata').
1177: ' '.&Apache::lonlocal::locallocaltime(time).
1178: '</font></p>');
1179: }
1180: }
1181: }
1182: $r->print($output.'<br /><input type="submit" name="store" value="'.
1183: &mt('Store Catalog Information').'">');
1184: }
1185: $r->print('</form>');
1186: return;
1187: }
1188:
1189: 1;
1190: __END__
1191:
1192:
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