1: # The LearningOnline Network with CAPA
2: # Metadata display handler
3: #
4: # $Id: lonmeta.pm,v 1.24 2002/10/25 13:50:48 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: # 10/19,10/21,10/23,11/27,08/09/01,12/22,12/24,12/25 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: use Apache::lonmsg;
41: use Apache::lonpublisher;
42:
43: # ----------------------------------------- Fetch and evaluate dynamic metadata
44:
45: sub dynamicmeta {
46: my $url=&Apache::lonnet::declutter(shift);
47: $url=~s/\.meta$//;
48: my ($adomain,$aauthor)=($url=~/^(\w+)\/(\w+)\//);
49: my $regexp=$url;
50: $regexp=~s/(\W)/\\$1/g;
51: $regexp='___'.$regexp.'___';
52: my %evaldata=&Apache::lonnet::dump('nohist_resevaldata',$adomain,
53: $aauthor,$regexp);
54: my %sum;
55: my %cnt;
56: my %listitems=('count' => 'add',
57: 'course' => 'add',
58: 'avetries' => 'avg',
59: 'stdno' => 'add',
60: 'difficulty' => 'avg',
61: 'clear' => 'avg',
62: 'technical' => 'avg',
63: 'helpful' => 'avg',
64: 'correct' => 'avg',
65: 'depth' => 'avg',
66: 'comments' => 'app',
67: 'usage' => 'cnt'
68: );
69: foreach (keys %evaldata) {
70: $_=~/___(\w+)$/;
71: if (defined($cnt{$1})) { $cnt{$1}++; } else { $cnt{$1}=1; }
72: unless ($listitems{$1} eq 'app') {
73: if (defined($sum{$1})) {
74: $sum{$1}+=$evaldata{$_};
75: } else {
76: $sum{$1}=$evaldata{$_};
77: }
78: } else {
79: if (defined($sum{$1})) {
80: if ($evaldata{$_}) {
81: $sum{$1}.='<hr>'.$evaldata{$_};
82: }
83: } else {
84: $sum{$1}=''.$evaldata{$_};
85: }
86: }
87: }
88: my %returnhash=();
89: foreach (keys %cnt) {
90: if ($listitems{$_} eq 'avg') {
91: $returnhash{$_}=int(($sum{$_}/$cnt{$_})*100.0+0.5)/100.0;
92: } elsif ($listitems{$_} eq 'cnt') {
93: $returnhash{$_}=$cnt{$_};
94: } else {
95: $returnhash{$_}=$sum{$_};
96: }
97: }
98: return %returnhash;
99: }
100:
101: # -------------------------------------------------------------- Pretty display
102:
103: sub evalgraph {
104: my $value=shift;
105: unless ($value) { return ''; }
106: my $val=int($value*10.+0.5)-10;
107: my $output='<table border=0 cellpadding=0 cellspacing=0><tr>';
108: if ($val>=20) {
109: $output.='<td width=20 bgcolor="#555555">  </td>';
110: } else {
111: $output.='<td width='.($val).' bgcolor="#555555"> </td>'.
112: '<td width='.(20-$val).' bgcolor="#FF3333"> </td>';
113: }
114: $output.='<td bgcolor="#FFFF33"> </td>';
115: if ($val>20) {
116: $output.='<td width='.($val-20).' bgcolor="#33FF33"> </td>'.
117: '<td width='.(40-$val).' bgcolor="#555555"> </td>';
118: } else {
119: $output.='<td width=20 bgcolor="#555555">  </td>';
120: }
121: $output.='<td> ('.$value.') </td></tr></table>';
122: return $output;
123: }
124:
125: sub diffgraph {
126: my $value=shift;
127: unless ($value) { return ''; }
128: my $val=int(40.0*$value+0.5);
129: my @colors=('#FF9933','#EEAA33','#DDBB33','#CCCC33',
130: '#BBDD33','#CCCC33','#DDBB33','#EEAA33');
131: my $output='<table border=0 cellpadding=0 cellspacing=0><tr>';
132: for (my $i=0;$i<8;$i++) {
133: if ($val>$i*5) {
134: $output.='<td width=5 bgcolor="'.$colors[$i].'"> </td>';
135: } else {
136: $output.='<td width=5 bgcolor="#555555"> </td>';
137: }
138: }
139: $output.='<td> ('.$value.') </td></tr></table>';
140: return $output;
141: }
142:
143: # ================================================================ Main Handler
144:
145: sub handler {
146: my $r=shift;
147:
148: my $loaderror=&Apache::lonnet::overloaderror($r);
149: if ($loaderror) { return $loaderror; }
150:
151:
152: my $uri=$r->uri;
153:
154: unless ($uri=~/^\/\~/) {
155: # =========================================== This is not in construction space
156: my ($resdomain,$resuser)=
157: (&Apache::lonnet::declutter($uri)=~/^(\w+)\/(\w+)\//);
158:
159: $loaderror=
160: &Apache::lonnet::overloaderror($r,
161: &Apache::lonnet::homeserver($resuser,$resdomain));
162: if ($loaderror) { return $loaderror; }
163:
164: my %content=();
165:
166: # ----------------------------------------------------------- Set document type
167:
168: $r->content_type('text/html');
169: $r->send_http_header;
170:
171: return OK if $r->header_only;
172:
173: # ------------------------------------------------------------------- Read file
174: foreach (split(/\,/,&Apache::lonnet::metadata($uri,'keys'))) {
175: $content{$_}=&Apache::lonnet::metadata($uri,$_);
176: }
177: # ------------------------------------------------------------------ Hide stuff
178:
179: unless ($ENV{'user.adv'}) {
180: foreach ('keywords','notes','abstract','subject') {
181: $content{$_}='<i>- not displayed -</i>';
182: }
183: }
184:
185: # --------------------------------------------------------------- Render Output
186: my ($thisversion)=($uri=~/\.(\d+)\.(\w+)\.meta$/);
187: my $creationdate=localtime(
188: &Apache::loncommon::unsqltime($content{'creationdate'}));
189: my $lastrevisiondate=localtime(
190: &Apache::loncommon::unsqltime($content{'lastrevisiondate'}));
191: my $language=&Apache::loncommon::languagedescription($content{'language'});
192: my $mime=&Apache::loncommon::filedescription($content{'mime'});
193: my $disuri=&Apache::lonnet::declutter($uri);
194: $disuri=~s/\.meta$//;
195: my $currentversion=&Apache::lonnet::getversion($disuri);
196: my $versiondisplay='';
197: if ($thisversion) {
198: $versiondisplay='Version: '.$thisversion.
199: ' (most recent version: '.$currentversion.')';
200: } else {
201: $versiondisplay='Version: '.$currentversion;
202: }
203: my $bodytag=&Apache::loncommon::bodytag
204: ('Catalog Information','','','',$resdomain);
205: $r->print(<<ENDHEAD);
206: <html><head><title>Catalog Information</title></head>
207: $bodytag
208: <h2>$content{'title'}</h2>
209: <h3><tt>$disuri</tt></h3>
210: $versiondisplay<br />
211: <table cellspacing=2 border=0>
212: <tr><td bgcolor='#AAAAAA'>Author(s)</td>
213: <td bgcolor="#CCCCCC">$content{'author'} </td></tr>
214: <tr><td bgcolor='#AAAAAA'>Subject</td>
215: <td bgcolor="#CCCCCC">$content{'subject'} </td></tr>
216: <tr><td bgcolor='#AAAAAA'>Keyword(s)</td>
217: <td bgcolor="#CCCCCC">$content{'keywords'} </td></tr>
218: <tr><td bgcolor='#AAAAAA'>Notes</td>
219: <td bgcolor="#CCCCCC">$content{'notes'} </td></tr>
220: <tr><td bgcolor='#AAAAAA'>Abstract</td>
221: <td bgcolor="#CCCCCC">$content{'abstract'} </td></tr>
222: <tr><td bgcolor='#AAAAAA'>MIME Type</td>
223: <td bgcolor="#CCCCCC">$mime ($content{'mime'}) </td></tr>
224: <tr><td bgcolor='#AAAAAA'>Language</td>
225: <td bgcolor="#CCCCCC">$language </td></tr>
226: <tr><td bgcolor='#AAAAAA'>Creation Date</td>
227: <td bgcolor="#CCCCCC">$creationdate </td></tr>
228: <tr><td bgcolor='#AAAAAA'>
229: Last Revision Date</td><td bgcolor="#CCCCCC">$lastrevisiondate </td></tr>
230: <tr><td bgcolor='#AAAAAA'>Publisher/Owner</td>
231: <td bgcolor="#CCCCCC">$content{'owner'} </td></tr>
232: <tr><td bgcolor='#AAAAAA'>Copyright/Distribution</td>
233: <td bgcolor="#CCCCCC">$content{'copyright'}
234: </table>
235: ENDHEAD
236: delete($content{'title'});
237: delete($content{'author'});
238: delete($content{'subject'});
239: delete($content{'keywords'});
240: delete($content{'notes'});
241: delete($content{'abstract'});
242: delete($content{'mime'});
243: delete($content{'language'});
244: delete($content{'creationdate'});
245: delete($content{'lastrevisiondate'});
246: delete($content{'owner'});
247: delete($content{'copyright'});
248: if ($ENV{'user.adv'}) {
249: # ------------------------------------------------------------ Dynamic Metadata
250: $r->print(
251: '<h3>Dynamic Metadata (updated periodically)</h3>Processing ...<br>');
252: $r->rflush();
253: my %items=(
254: 'count' => 'Network-wide number of accesses (hits)',
255: 'course' => 'Network-wide number of courses using resource',
256: 'usage' => 'Number of resources using or importing resource',
257: 'clear' => 'Material presented in clear way',
258: 'depth' => 'Material covered with sufficient depth',
259: 'helpful' => 'Material is helpful',
260: 'correct' => 'Material appears to be correct',
261: 'technical' => 'Resource is technically correct',
262: 'avetries' => 'Average number of tries till solved',
263: 'stdno' => 'Total number of students who have worked on this problem',
264: 'difficulty' => 'Degree of difficulty');
265: my %dynmeta=&dynamicmeta($uri);
266: $r->print(
267: '</table><h4>Access and Usage Statistics</h4><table cellspacing=2 border=0>');
268: foreach ('count','usage','course') {
269: $r->print(
270: '<tr><td bgcolor="#AAAAAA">'.$items{$_}.'</td><td bgcolor="#CCCCCC">'.
271: $dynmeta{$_}." </td></tr>\n");
272: }
273: $r->print('</table>');
274: if ($uri=~/\.(problem|exam|quiz|assess|survey|form)\.meta$/) {
275: $r->print(
276: '<h4>Assessment Statistical Data</h4><table cellspacing=2 border=0>');
277: foreach ('stdno','avetries') {
278: $r->print(
279: '<tr><td bgcolor="#AAAAAA">'.$items{$_}.'</td><td bgcolor="#CCCCCC">'.
280: $dynmeta{$_}." </td></tr>\n");
281: }
282: foreach ('difficulty') {
283: $r->print(
284: '<tr><td bgcolor="#AAAAAA">'.$items{$_}.'</td><td bgcolor="#CCCCCC">'.
285: &diffgraph($dynmeta{$_})."</td></tr>\n");
286: }
287: $r->print('</table>');
288: }
289: $r->print('<h4>Evaluation Data</h4><table cellspacing=2 border=0>');
290: foreach ('clear','depth','helpful','correct','technical') {
291: $r->print(
292: '<tr><td bgcolor="#AAAAAA">'.$items{$_}.'</td><td bgcolor="#CCCCCC">'.
293: &evalgraph($dynmeta{$_})."</td></tr>\n");
294: }
295: $r->print('</table>');
296: $disuri=~/^(\w+)\/(\w+)\//;
297: if ((($ENV{'user.domain'} eq $1) && ($ENV{'user.name'} eq $2))
298: || ($ENV{'user.role.ca./'.$1.'/'.$2})) {
299: $r->print(
300: '<h4>Evaluation Comments (visible to author and co-authors only)</h4>'.
301: '<blockquote>'.$dynmeta{'comments'}.'</blockquote>');
302: $r->print(
303: '<h4>Error Messages (visible to author and co-authors only)</h4>');
304: my %errormsgs=&Apache::lonnet::dump('nohist_res_msgs',$1,$2);
305: foreach (keys %errormsgs) {
306: if ($_=~/^$disuri\_\d+$/) {
307: my %content=&Apache::lonmsg::unpackagemsg($errormsgs{$_});
308: $r->print('<b>'.$content{'time'}.'</b>: '.$content{'message'}.
309: '<br />');
310: }
311: }
312: }
313: # ------------------------------------------------------------- All other stuff
314: $r->print(
315: '<h3>Additional Metadata (non-standard, parameters, exports)</h3>');
316: foreach (sort keys %content) {
317: my $name=$_;
318: my $display=&Apache::lonnet::metadata($uri,$name.'.display');
319: unless ($display) { $display=$name; };
320: my $otherinfo='';
321: foreach ('name','part','type','default') {
322: if (defined(&Apache::lonnet::metadata($uri,$name.'.'.$_))) {
323: $otherinfo.=' '.$_.'='.
324: &Apache::lonnet::metadata($uri,$name.'.'.$_).'; ';
325: }
326: }
327: $r->print('<b>'.$display.':</b> '.$content{$name});
328: if ($otherinfo) {
329: $r->print(' ('.$otherinfo.')');
330: }
331: $r->print("<br>\n");
332: }
333: }
334: # ===================================================== End Resource Space Call
335: } else {
336: # ===================================================== Construction Space Call
337:
338: # ----------------------------------------------------------- Set document type
339:
340: $r->content_type('text/html');
341: $r->send_http_header;
342:
343: return OK if $r->header_only;
344: # ---------------------------------------------------------------------- Header
345: my $bodytag=&Apache::loncommon::bodytag('Edit Catalog Information');
346: my $disuri=$uri;
347: my $fn=&Apache::lonnet::filelocation('',$uri);
348: $disuri=~s/^\/\~\w+//;
349: $disuri=~s/\.meta$//;
350: my $displayfile='Catalog Information for '.$disuri;
351: if ($disuri=~/\/default$/) {
352: my $dir=$disuri;
353: $dir=~s/default$//;
354: $displayfile='Default Cataloging Information for Directory '.$dir;
355: }
356: %Apache::lonpublisher::metadatafields=();
357: %Apache::lonpublisher::metadatakeys=();
358: &Apache::lonpublisher::metaeval(&Apache::lonnet::getfile($fn));
359: $r->print(<<ENDEDIT);
360: <html><head><title>Edit Catalog Information</title></head>
361: $bodytag
362: <h1>$displayfile</h1>
363: <form method="post">
364: ENDEDIT
365: foreach ('author','title','subject','keywords','abstract','notes',
366: 'copyright','language') {
367: if ($ENV{'form.new_'.$_}) {
368: $Apache::lonpublisher::metadatafields{$_}=$ENV{'form.new_'.$_};
369: }
370: $r->print(
371: &Apache::lonpublisher::textfield($_,'new_'.$_,
372: $Apache::lonpublisher::metadatafields{$_}));
373: }
374: if ($ENV{'form.store'}) {
375: my $mfh;
376: unless ($mfh=Apache::File->new('>'.$fn)) {
377: $r->print(
378: '<p><font color=red>Could not write metadata, FAIL</font>');
379: } else {
380: foreach (sort keys %Apache::lonpublisher::metadatafields) {
381: unless ($_=~/\./) {
382: my $unikey=$_;
383: $unikey=~/^([A-Za-z]+)/;
384: my $tag=$1;
385: $tag=~tr/A-Z/a-z/;
386: print $mfh "\n\<$tag";
387: foreach
388: (split(/\,/,$Apache::lonpublisher::metadatakeys{$unikey})) {
389: my $value=
390: $Apache::lonpublisher::metadatafields{$unikey.'.'.$_};
391: $value=~s/\"/\'\'/g;
392: print $mfh ' '.$_.'="'.$value.'"';
393: }
394: print $mfh '>'.
395: &HTML::Entities::encode($Apache::lonpublisher::metadatafields{$unikey})
396: .'</'.$tag.'>';
397: }
398: }
399: $r->print('<p>Wrote Metadata');
400: }
401: }
402: $r->print(
403: '<br /><input type="submit" name="store" value="Store Catalog Information"></form></body></html>');
404: return OK;
405: }
406: }
407:
408: 1;
409: __END__
410:
411:
412:
413:
414:
415:
416:
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