1: # The LearningOnline Network with CAPA
2: # Metadata display handler
3: #
4: # $Id: lonmeta.pm,v 1.11 2001/12/24 21:09:08 www 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: # (TeX Content Handler
29: #
30: # 05/29/00,05/30,10/11 Gerd Kortemeyer)
31: #
32: # 10/19,10/21,10/23,11/27,08/09/01,12/22,12/24 Gerd Kortemeyer
33:
34: package Apache::lonmeta;
35:
36: use strict;
37: use Apache::Constants qw(:common);
38: use Apache::lonnet();
39: use Apache::loncommon();
40:
41: # ----------------------------------------- Fetch and evaluate dynamic metadata
42:
43: sub dynamicmeta {
44: my $url=&Apache::lonnet::declutter(shift);
45: $url=~s/\.meta$//;
46: my ($adomain,$aauthor)=($url=~/^(\w+)\/(\w+)\//);
47: my $regexp=&Apache::lonnet::escape($url);
48: $regexp=~s/(\W)/\\$1/g;
49: $regexp='___'.$regexp.'___';
50: my %evaldata=&Apache::lonnet::dump
51: ('resevaldata',$adomain,$aauthor,$regexp);
52: my %sum;
53: my %cnt;
54: my %listitems=('count' => 'add',
55: 'course' => 'add',
56: 'avetries' => 'avg',
57: 'stdno' => 'add',
58: 'difficulty' => 'avg',
59: 'clear' => 'avg',
60: 'technical' => 'avg',
61: 'helpful' => 'avg',
62: 'correct' => 'avg',
63: 'depth' => 'avg',
64: 'comments' => 'app',
65: 'usage' => 'cnt'
66: );
67: foreach (keys %evaldata) {
68: $_=~/___(\w+)$/;
69: if (defined($cnt{$1})) { $cnt{$1}++; } else { $cnt{$1}=1; }
70: unless ($listitems{$1} eq 'app') {
71: if (defined($sum{$1})) {
72: $sum{$1}+=$evaldata{$_};
73: } else {
74: $sum{$1}=$evaldata{$_};
75: }
76: } else {
77: if (defined($sum{$1})) {
78: if ($evaldata{$_}) {
79: $sum{$1}.='<hr>'.$evaldata{$_};
80: }
81: } else {
82: $sum{$1}=''.$evaldata{$_};
83: }
84: }
85: }
86: my %returnhash=();
87: foreach (keys %cnt) {
88: if ($listitems{$_} eq 'avg') {
89: $returnhash{$_}=int(($sum{$_}/$cnt{$_})*100.0+0.5)/100.0;
90: } elsif ($listitems{$_} eq 'cnt') {
91: $returnhash{$_}=$cnt{$_};
92: } else {
93: $returnhash{$_}=$sum{$_};
94: }
95: }
96: return %returnhash;
97: }
98:
99: # ================================================================ Main Handler
100:
101: sub handler {
102: my $r=shift;
103: my %content=();
104:
105: # ----------------------------------------------------------- Set document type
106:
107: $r->content_type('text/html');
108: $r->send_http_header;
109:
110: return OK if $r->header_only;
111:
112: # ------------------------------------------------------------------- Read file
113:
114: my $uri=$r->uri;
115: map {
116: $content{$_}=&Apache::lonnet::metadata($uri,$_);
117: } split(/\,/,&Apache::lonnet::metadata($uri,'keys'));
118:
119: # ------------------------------------------------------------------ Hide stuff
120:
121: unless ($ENV{'user.adv'}) {
122: map {
123: $content{$_}='<i>- not displayed -</i>';
124: } ('keywords','notes','abstract','subject');
125: }
126:
127: # --------------------------------------------------------------- Render Output
128:
129: my $creationdate=localtime($content{'creationdate'});
130: my $lastrevisiondate=localtime($content{'lastrevisiondate'});
131: my $language=&Apache::loncommon::languagedescription($content{'language'});
132: my $mime=&Apache::loncommon::filedescription($content{'mime'});
133: my $disuri=&Apache::lonnet::declutter($uri);
134: $disuri=~s/\.meta$//;
135: $r->print(<<ENDHEAD);
136: <html><head><title>Catalog Information</title></head>
137: <body bgcolor="#FFFFFF">
138: <h1>Catalog Information</h1>
139: <h2>$content{'title'}</h2>
140: <h3><tt>$disuri</tt></h3>
141: <table cellspacing=2 border=0>
142: <tr><td bgcolor='#AAAAAA'>Author(s)</td>
143: <td bgcolor="#CCCCCC">$content{'author'} </td></tr>
144: <tr><td bgcolor='#AAAAAA'>Subject</td>
145: <td bgcolor="#CCCCCC">$content{'subject'} </td></tr>
146: <tr><td bgcolor='#AAAAAA'>Keyword(s)</td>
147: <td bgcolor="#CCCCCC">$content{'keywords'} </td></tr>
148: <tr><td bgcolor='#AAAAAA'>Notes</td>
149: <td bgcolor="#CCCCCC">$content{'notes'} </td></tr>
150: <tr><td bgcolor='#AAAAAA'>Abstract</td>
151: <td bgcolor="#CCCCCC">$content{'abstract'} </td></tr>
152: <tr><td bgcolor='#AAAAAA'>MIME Type</td>
153: <td bgcolor="#CCCCCC">$mime ($content{'mime'}) </td></tr>
154: <tr><td bgcolor='#AAAAAA'>Language</td>
155: <td bgcolor="#CCCCCC">$language </td></tr>
156: <tr><td bgcolor='#AAAAAA'>Creation Date</td>
157: <td bgcolor="#CCCCCC">$creationdate </td></tr>
158: <tr><td bgcolor='#AAAAAA'>
159: Last Revision Date</td><td bgcolor="#CCCCCC">$lastrevisiondate </td></tr>
160: <tr><td bgcolor='#AAAAAA'>Publisher/Owner</td>
161: <td bgcolor="#CCCCCC">$content{'owner'} </td></tr>
162: <tr><td bgcolor='#AAAAAA'>Copyright/Distribution</td>
163: <td bgcolor="#CCCCCC">$content{'copyright'}
164: </table>
165: ENDHEAD
166: delete($content{'title'});
167: delete($content{'author'});
168: delete($content{'subject'});
169: delete($content{'keywords'});
170: delete($content{'notes'});
171: delete($content{'abstract'});
172: delete($content{'mime'});
173: delete($content{'language'});
174: delete($content{'creationdate'});
175: delete($content{'lastrevisiondate'});
176: delete($content{'owner'});
177: delete($content{'copyright'});
178: if ($ENV{'user.adv'}) {
179: # ------------------------------------------------------------ Dynamic Metadata
180: $r->print('<h3>Dynamic Metadata (updated periodically)</h3>');
181: my %items=(
182: 'count' => 'Network-wide number of accesses (hits)',
183: 'course' => 'Network-wide number of courses using resource',
184: 'usage' => 'Number of resources using or importing resource',
185: 'clear' => 'Material presented in clear way',
186: 'depth' => 'Material covered with sufficient depth',
187: 'helpful' => 'Material is helpful',
188: 'correct' => 'Material appears to be correct',
189: 'technical' => 'Resource is technically correct',
190: 'avetries' => 'Average number of tries till solved',
191: 'stdno' => 'Total number of students who have worked on this problem',
192: 'difficulty' => 'Degree of difficulty');
193: my %dynmeta=&dynamicmeta($uri);
194: $r->print(
195: '</table><h4>Access and Usage Statistics</h4><table cellspacing=2 border=0>');
196: foreach ('count','usage','course') {
197: $r->print(
198: '<tr><td bgcolor="#AAAAAA">'.$items{$_}.'</td><td bgcolor="#CCCCCC">'.
199: $dynmeta{$_}." </td></tr>\n");
200: }
201: $r->print('</table>');
202: if ($uri=~/\.(problem|exam|quiz|assess|survey|form)\.meta$/) {
203: $r->print(
204: '<h4>Assessment Statistical Data</h4><table cellspacing=2 border=0>');
205: foreach ('stdno','avetries','difficulty') {
206: $r->print(
207: '<tr><td bgcolor="#AAAAAA">'.$items{$_}.'</td><td bgcolor="#CCCCCC">'.
208: $dynmeta{$_}." </td></tr>\n");
209: }
210: $r->print('</table>');
211: }
212: $r->print('<h4>Evaluation Data</h4><table cellspacing=2 border=0>');
213: foreach ('clear','depth','helpful','correct','technical') {
214: $r->print(
215: '<tr><td bgcolor="#AAAAAA">'.$items{$_}.'</td><td bgcolor="#CCCCCC">'.
216: $dynmeta{$_}." </td></tr>\n");
217: }
218: $r->print('</table>');
219: $disuri=~/^(\w+)\/(\w+)\//;
220: if ((($ENV{'user.domain'} eq $1) && ($ENV{'user.name'} eq $2))
221: || ($ENV{'user.role.ca./'.$1.'/'.$2})) {
222: $r->print(
223: '<h4>Evaluation Comments (visible to author and co-authors only)</h4>'.
224: '<blockquote>'.$dynmeta{'comments'}.'</blockquote>');
225: }
226: # ------------------------------------------------------------- All other stuff
227: $r->print(
228: '<h3>Additional Metadata (non-standard, parameters, exports)</h3>');
229: foreach (sort keys %content) {
230: my $name=$_;
231: my $display=&Apache::lonnet::metadata($uri,$name.'.display');
232: unless ($display) { $display=$name; };
233: my $otherinfo='';
234: map {
235: if (defined(&Apache::lonnet::metadata($uri,$name.'.'.$_))) {
236: $otherinfo.=' '.$_.'='.
237: &Apache::lonnet::metadata($uri,$name.'.'.$_).'; ';
238: }
239: } ('name','part','type','default');
240: $r->print('<b>'.$display.':</b> '.$content{$name});
241: if ($otherinfo) {
242: $r->print(' ('.$otherinfo.')');
243: }
244: $r->print("<br>\n");
245: }
246: }
247: $r->print('</body></html>');
248: return OK;
249: }
250:
251: 1;
252: __END__
253:
254:
255:
256:
257:
258:
259:
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>
![[BACK]](/icons/back.gif){kind=icon}
Return to lonmeta.pm CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [LON-CAPA] / loncom / interface