Annotation of loncom/interface/lonmeta.pm, revision 1.27
1.1 www 1: # The LearningOnline Network with CAPA
1.8 albertel 2: # Metadata display handler
3: #
1.27 ! www 4: # $Id: lonmeta.pm,v 1.26 2003/02/18 22:39:18 www Exp $
1.8 albertel 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.
1.1 www 14: #
1.8 albertel 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/
1.1 www 27: #
28: # (TeX Content Handler
29: #
30: # 05/29/00,05/30,10/11 Gerd Kortemeyer)
31: #
1.13 www 32: # 10/19,10/21,10/23,11/27,08/09/01,12/22,12/24,12/25 Gerd Kortemeyer
1.1 www 33:
34: package Apache::lonmeta;
35:
36: use strict;
37: use Apache::Constants qw(:common);
1.3 www 38: use Apache::lonnet();
1.10 www 39: use Apache::loncommon();
1.23 www 40: use Apache::lonmsg;
41: use Apache::lonpublisher;
1.1 www 42:
1.9 www 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+)\//);
1.19 www 49: my $regexp=$url;
1.9 www 50: $regexp=~s/(\W)/\\$1/g;
1.10 www 51: $regexp='___'.$regexp.'___';
1.16 albertel 52: my %evaldata=&Apache::lonnet::dump('nohist_resevaldata',$adomain,
53: $aauthor,$regexp);
1.10 www 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{$_};
85: }
86: }
87: }
1.9 www 88: my %returnhash=();
1.10 www 89: foreach (keys %cnt) {
1.11 www 90: if ($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: }
1.9 www 97: }
98: return %returnhash;
1.25 www 99: }
100:
101: # ------------------------------------- Try to make an alt tag if there is none
102:
103: sub alttag {
1.26 www 104: my ($base,$src)=@_;
105: my $fullpath=&Apache::lonnet::hreflocation($base,$src);
106: my $alttag=&Apache::lonnet::metadata($fullpath,'title').' '.
107: &Apache::lonnet::metadata($fullpath,'subject').' '.
108: &Apache::lonnet::metadata($fullpath,'abstract');
109: $alttag=~s/\s+/ /gs;
110: $alttag=~s/\"//gs;
111: $alttag=~s/\'//gs;
112: $alttag=~s/\s+$//gs;
113: $alttag=~s/^\s+//gs;
114: if ($alttag) { return $alttag; } else
115: { return 'No information available'; }
1.9 www 116: }
1.1 www 117:
1.12 www 118: # -------------------------------------------------------------- Pretty display
119:
120: sub evalgraph {
121: my $value=shift;
1.13 www 122: unless ($value) { return ''; }
1.12 www 123: my $val=int($value*10.+0.5)-10;
124: my $output='<table border=0 cellpadding=0 cellspacing=0><tr>';
125: if ($val>=20) {
126: $output.='<td width=20 bgcolor="#555555">  </td>';
127: } else {
128: $output.='<td width='.($val).' bgcolor="#555555"> </td>'.
129: '<td width='.(20-$val).' bgcolor="#FF3333"> </td>';
130: }
131: $output.='<td bgcolor="#FFFF33"> </td>';
132: if ($val>20) {
133: $output.='<td width='.($val-20).' bgcolor="#33FF33"> </td>'.
134: '<td width='.(40-$val).' bgcolor="#555555"> </td>';
135: } else {
136: $output.='<td width=20 bgcolor="#555555">  </td>';
137: }
138: $output.='<td> ('.$value.') </td></tr></table>';
139: return $output;
140: }
141:
142: sub diffgraph {
143: my $value=shift;
1.13 www 144: unless ($value) { return ''; }
1.12 www 145: my $val=int(40.0*$value+0.5);
1.13 www 146: my @colors=('#FF9933','#EEAA33','#DDBB33','#CCCC33',
147: '#BBDD33','#CCCC33','#DDBB33','#EEAA33');
1.12 www 148: my $output='<table border=0 cellpadding=0 cellspacing=0><tr>';
149: for (my $i=0;$i<8;$i++) {
150: if ($val>$i*5) {
151: $output.='<td width=5 bgcolor="'.$colors[$i].'"> </td>';
152: } else {
153: $output.='<td width=5 bgcolor="#555555"> </td>';
154: }
155: }
156: $output.='<td> ('.$value.') </td></tr></table>';
157: return $output;
158: }
159:
1.1 www 160: # ================================================================ Main Handler
161:
162: sub handler {
163: my $r=shift;
1.20 www 164:
165: my $loaderror=&Apache::lonnet::overloaderror($r);
166: if ($loaderror) { return $loaderror; }
167:
168:
169: my $uri=$r->uri;
170:
1.23 www 171: unless ($uri=~/^\/\~/) {
172: # =========================================== This is not in construction space
1.20 www 173: my ($resdomain,$resuser)=
174: (&Apache::lonnet::declutter($uri)=~/^(\w+)\/(\w+)\//);
175:
176: $loaderror=
177: &Apache::lonnet::overloaderror($r,
178: &Apache::lonnet::homeserver($resuser,$resdomain));
179: if ($loaderror) { return $loaderror; }
180:
1.3 www 181: my %content=();
1.1 www 182:
183: # ----------------------------------------------------------- Set document type
184:
185: $r->content_type('text/html');
186: $r->send_http_header;
187:
188: return OK if $r->header_only;
189:
190: # ------------------------------------------------------------------- Read file
1.14 harris41 191: foreach (split(/\,/,&Apache::lonnet::metadata($uri,'keys'))) {
1.3 www 192: $content{$_}=&Apache::lonnet::metadata($uri,$_);
1.14 harris41 193: }
1.6 albertel 194: # ------------------------------------------------------------------ Hide stuff
1.7 www 195:
196: unless ($ENV{'user.adv'}) {
1.14 harris41 197: foreach ('keywords','notes','abstract','subject') {
1.7 www 198: $content{$_}='<i>- not displayed -</i>';
1.14 harris41 199: }
1.6 albertel 200: }
201:
1.1 www 202: # --------------------------------------------------------------- Render Output
1.23 www 203: my ($thisversion)=($uri=~/\.(\d+)\.(\w+)\.meta$/);
1.22 www 204: my $creationdate=localtime(
205: &Apache::loncommon::unsqltime($content{'creationdate'}));
206: my $lastrevisiondate=localtime(
207: &Apache::loncommon::unsqltime($content{'lastrevisiondate'}));
1.10 www 208: my $language=&Apache::loncommon::languagedescription($content{'language'});
209: my $mime=&Apache::loncommon::filedescription($content{'mime'});
1.11 www 210: my $disuri=&Apache::lonnet::declutter($uri);
211: $disuri=~s/\.meta$//;
1.21 www 212: my $currentversion=&Apache::lonnet::getversion($disuri);
213: my $versiondisplay='';
214: if ($thisversion) {
215: $versiondisplay='Version: '.$thisversion.
216: ' (most recent version: '.$currentversion.')';
217: } else {
218: $versiondisplay='Version: '.$currentversion;
219: }
1.17 www 220: my $bodytag=&Apache::loncommon::bodytag
221: ('Catalog Information','','','',$resdomain);
1.1 www 222: $r->print(<<ENDHEAD);
223: <html><head><title>Catalog Information</title></head>
1.17 www 224: $bodytag
1.1 www 225: <h2>$content{'title'}</h2>
1.11 www 226: <h3><tt>$disuri</tt></h3>
1.21 www 227: $versiondisplay<br />
1.11 www 228: <table cellspacing=2 border=0>
229: <tr><td bgcolor='#AAAAAA'>Author(s)</td>
230: <td bgcolor="#CCCCCC">$content{'author'} </td></tr>
231: <tr><td bgcolor='#AAAAAA'>Subject</td>
232: <td bgcolor="#CCCCCC">$content{'subject'} </td></tr>
233: <tr><td bgcolor='#AAAAAA'>Keyword(s)</td>
234: <td bgcolor="#CCCCCC">$content{'keywords'} </td></tr>
235: <tr><td bgcolor='#AAAAAA'>Notes</td>
236: <td bgcolor="#CCCCCC">$content{'notes'} </td></tr>
237: <tr><td bgcolor='#AAAAAA'>Abstract</td>
238: <td bgcolor="#CCCCCC">$content{'abstract'} </td></tr>
239: <tr><td bgcolor='#AAAAAA'>MIME Type</td>
240: <td bgcolor="#CCCCCC">$mime ($content{'mime'}) </td></tr>
241: <tr><td bgcolor='#AAAAAA'>Language</td>
242: <td bgcolor="#CCCCCC">$language </td></tr>
243: <tr><td bgcolor='#AAAAAA'>Creation Date</td>
244: <td bgcolor="#CCCCCC">$creationdate </td></tr>
245: <tr><td bgcolor='#AAAAAA'>
246: Last Revision Date</td><td bgcolor="#CCCCCC">$lastrevisiondate </td></tr>
247: <tr><td bgcolor='#AAAAAA'>Publisher/Owner</td>
248: <td bgcolor="#CCCCCC">$content{'owner'} </td></tr>
249: <tr><td bgcolor='#AAAAAA'>Copyright/Distribution</td>
250: <td bgcolor="#CCCCCC">$content{'copyright'}
251: </table>
1.1 www 252: ENDHEAD
253: delete($content{'title'});
254: delete($content{'author'});
255: delete($content{'subject'});
256: delete($content{'keywords'});
257: delete($content{'notes'});
258: delete($content{'abstract'});
259: delete($content{'mime'});
260: delete($content{'language'});
261: delete($content{'creationdate'});
262: delete($content{'lastrevisiondate'});
263: delete($content{'owner'});
264: delete($content{'copyright'});
1.7 www 265: if ($ENV{'user.adv'}) {
1.11 www 266: # ------------------------------------------------------------ Dynamic Metadata
1.15 www 267: $r->print(
268: '<h3>Dynamic Metadata (updated periodically)</h3>Processing ...<br>');
269: $r->rflush();
1.10 www 270: my %items=(
271: 'count' => 'Network-wide number of accesses (hits)',
272: 'course' => 'Network-wide number of courses using resource',
273: 'usage' => 'Number of resources using or importing resource',
1.11 www 274: 'clear' => 'Material presented in clear way',
275: 'depth' => 'Material covered with sufficient depth',
276: 'helpful' => 'Material is helpful',
277: 'correct' => 'Material appears to be correct',
278: 'technical' => 'Resource is technically correct',
1.10 www 279: 'avetries' => 'Average number of tries till solved',
280: 'stdno' => 'Total number of students who have worked on this problem',
281: 'difficulty' => 'Degree of difficulty');
282: my %dynmeta=&dynamicmeta($uri);
1.11 www 283: $r->print(
284: '</table><h4>Access and Usage Statistics</h4><table cellspacing=2 border=0>');
1.10 www 285: foreach ('count','usage','course') {
1.11 www 286: $r->print(
287: '<tr><td bgcolor="#AAAAAA">'.$items{$_}.'</td><td bgcolor="#CCCCCC">'.
288: $dynmeta{$_}." </td></tr>\n");
289: }
290: $r->print('</table>');
1.10 www 291: if ($uri=~/\.(problem|exam|quiz|assess|survey|form)\.meta$/) {
1.11 www 292: $r->print(
293: '<h4>Assessment Statistical Data</h4><table cellspacing=2 border=0>');
1.12 www 294: foreach ('stdno','avetries') {
1.11 www 295: $r->print(
296: '<tr><td bgcolor="#AAAAAA">'.$items{$_}.'</td><td bgcolor="#CCCCCC">'.
297: $dynmeta{$_}." </td></tr>\n");
298: }
1.12 www 299: foreach ('difficulty') {
300: $r->print(
301: '<tr><td bgcolor="#AAAAAA">'.$items{$_}.'</td><td bgcolor="#CCCCCC">'.
302: &diffgraph($dynmeta{$_})."</td></tr>\n");
303: }
1.11 www 304: $r->print('</table>');
1.10 www 305: }
1.11 www 306: $r->print('<h4>Evaluation Data</h4><table cellspacing=2 border=0>');
1.10 www 307: foreach ('clear','depth','helpful','correct','technical') {
1.11 www 308: $r->print(
309: '<tr><td bgcolor="#AAAAAA">'.$items{$_}.'</td><td bgcolor="#CCCCCC">'.
1.12 www 310: &evalgraph($dynmeta{$_})."</td></tr>\n");
1.10 www 311: }
1.11 www 312: $r->print('</table>');
313: $disuri=~/^(\w+)\/(\w+)\//;
1.10 www 314: if ((($ENV{'user.domain'} eq $1) && ($ENV{'user.name'} eq $2))
315: || ($ENV{'user.role.ca./'.$1.'/'.$2})) {
316: $r->print(
317: '<h4>Evaluation Comments (visible to author and co-authors only)</h4>'.
1.23 www 318: '<blockquote>'.$dynmeta{'comments'}.'</blockquote>');
319: $r->print(
320: '<h4>Error Messages (visible to author and co-authors only)</h4>');
321: my %errormsgs=&Apache::lonnet::dump('nohist_res_msgs',$1,$2);
322: foreach (keys %errormsgs) {
323: if ($_=~/^$disuri\_\d+$/) {
324: my %content=&Apache::lonmsg::unpackagemsg($errormsgs{$_});
325: $r->print('<b>'.$content{'time'}.'</b>: '.$content{'message'}.
326: '<br />');
327: }
328: }
1.10 www 329: }
1.11 www 330: # ------------------------------------------------------------- All other stuff
1.10 www 331: $r->print(
332: '<h3>Additional Metadata (non-standard, parameters, exports)</h3>');
333: foreach (sort keys %content) {
1.3 www 334: my $name=$_;
335: my $display=&Apache::lonnet::metadata($uri,$name.'.display');
1.5 www 336: unless ($display) { $display=$name; };
337: my $otherinfo='';
1.14 harris41 338: foreach ('name','part','type','default') {
1.5 www 339: if (defined(&Apache::lonnet::metadata($uri,$name.'.'.$_))) {
340: $otherinfo.=' '.$_.'='.
341: &Apache::lonnet::metadata($uri,$name.'.'.$_).'; ';
342: }
1.14 harris41 343: }
1.5 www 344: $r->print('<b>'.$display.':</b> '.$content{$name});
345: if ($otherinfo) {
346: $r->print(' ('.$otherinfo.')');
347: }
348: $r->print("<br>\n");
1.10 www 349: }
1.7 www 350: }
1.23 www 351: # ===================================================== End Resource Space Call
352: } else {
353: # ===================================================== Construction Space Call
354:
355: # ----------------------------------------------------------- Set document type
356:
357: $r->content_type('text/html');
358: $r->send_http_header;
359:
360: return OK if $r->header_only;
361: # ---------------------------------------------------------------------- Header
362: my $bodytag=&Apache::loncommon::bodytag('Edit Catalog Information');
363: my $disuri=$uri;
364: my $fn=&Apache::lonnet::filelocation('',$uri);
365: $disuri=~s/^\/\~\w+//;
366: $disuri=~s/\.meta$//;
367: my $displayfile='Catalog Information for '.$disuri;
368: if ($disuri=~/\/default$/) {
369: my $dir=$disuri;
370: $dir=~s/default$//;
371: $displayfile='Default Cataloging Information for Directory '.$dir;
372: }
373: %Apache::lonpublisher::metadatafields=();
374: %Apache::lonpublisher::metadatakeys=();
375: &Apache::lonpublisher::metaeval(&Apache::lonnet::getfile($fn));
376: $r->print(<<ENDEDIT);
377: <html><head><title>Edit Catalog Information</title></head>
378: $bodytag
379: <h1>$displayfile</h1>
1.24 www 380: <form method="post">
1.23 www 381: ENDEDIT
1.24 www 382: foreach ('author','title','subject','keywords','abstract','notes',
1.27 ! www 383: 'copyright','customdistributionfile','language') {
1.24 www 384: if ($ENV{'form.new_'.$_}) {
385: $Apache::lonpublisher::metadatafields{$_}=$ENV{'form.new_'.$_};
386: }
387: $r->print(
388: &Apache::lonpublisher::textfield($_,'new_'.$_,
389: $Apache::lonpublisher::metadatafields{$_}));
1.23 www 390: }
1.24 www 391: if ($ENV{'form.store'}) {
392: my $mfh;
393: unless ($mfh=Apache::File->new('>'.$fn)) {
394: $r->print(
395: '<p><font color=red>Could not write metadata, FAIL</font>');
396: } else {
397: foreach (sort keys %Apache::lonpublisher::metadatafields) {
398: unless ($_=~/\./) {
399: my $unikey=$_;
400: $unikey=~/^([A-Za-z]+)/;
401: my $tag=$1;
402: $tag=~tr/A-Z/a-z/;
403: print $mfh "\n\<$tag";
404: foreach
405: (split(/\,/,$Apache::lonpublisher::metadatakeys{$unikey})) {
406: my $value=
407: $Apache::lonpublisher::metadatafields{$unikey.'.'.$_};
408: $value=~s/\"/\'\'/g;
409: print $mfh ' '.$_.'="'.$value.'"';
410: }
411: print $mfh '>'.
412: &HTML::Entities::encode($Apache::lonpublisher::metadatafields{$unikey})
413: .'</'.$tag.'>';
414: }
415: }
416: $r->print('<p>Wrote Metadata');
417: }
418: }
419: $r->print(
420: '<br /><input type="submit" name="store" value="Store Catalog Information"></form></body></html>');
421: return OK;
422: }
1.1 www 423: }
424:
425: 1;
426: __END__
427:
428:
429:
430:
431:
432:
433:
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