1: # The LearningOnline Network with CAPA
2: # Navigate Maps Handler
3: #
4: # $Id: lonnavmaps.pm,v 1.28 2002/03/15 16:31:10 albertel 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: # (Page Handler
29: #
30: # (TeX Content Handler
31: #
32: # 05/29/00,05/30 Gerd Kortemeyer)
33: # 08/30,08/31,09/06,09/14,09/15,09/16,09/19,09/20,09/21,09/23,
34: # 10/02,10/10,10/14,10/16,10/18,10/19,10/31,11/6,11/14,11/16 Gerd Kortemeyer)
35: #
36: # 3/1/1,6/1,17/1,29/1,30/1,2/8,9/21,9/24,9/25 Gerd Kortemeyer
37: # YEAR=2002
38: # 1/1 Gerd Kortemeyer
39: #
40:
41: package Apache::lonnavmaps;
42:
43: use strict;
44: use Apache::Constants qw(:common :http);
45: use Apache::lonnet();
46: use Apache::loncommon();
47: use HTML::TokeParser;
48: use GDBM_File;
49:
50: # -------------------------------------------------------------- Module Globals
51: my %hash;
52: my @rows;
53:
54: #
55: # These cache hashes need to be independent of user, resource and course
56: # (user and course can/should be in the keys)
57: #
58:
59: my %courserdatas;
60: my %userrdatas;
61:
62: #
63: # These global hashes are dependent on user, course and resource,
64: # and need to be initialized every time when a sheet is calculated
65: #
66: my %courseopt;
67: my %useropt;
68: my %parmhash;
69:
70: # ------------------------------------------------------------------ Euclid gcd
71:
72: sub euclid {
73: my ($e,$f)=@_;
74: my $a; my $b; my $r;
75: if ($e>$f) { $b=$e; $r=$f; } else { $r=$e; $b=$f; }
76: while ($r!=0) {
77: $a=$b; $b=$r;
78: $r=$a%$b;
79: }
80: return $b;
81: }
82:
83: # --------------------------------------------------------------------- Parmval
84:
85: # -------------------------------------------- Figure out a cascading parameter
86: #
87: # For this function to work
88: #
89: # * parmhash needs to be tied
90: # * courseopt and useropt need to be initialized for this user and course
91: #
92:
93: sub parmval {
94: my ($what,$symb)=@_;
95: my $cid=$ENV{'request.course.id'};
96: my $csec=$ENV{'request.course.sec'};
97: my $uname=$ENV{'user.name'};
98: my $udom=$ENV{'user.domain'};
99:
100: unless ($symb) { return ''; }
101: my $result='';
102:
103: my ($mapname,$id,$fn)=split(/\_\_\_/,$symb);
104:
105: # ----------------------------------------------------- Cascading lookup scheme
106: my $rwhat=$what;
107: $what=~s/^parameter\_//;
108: $what=~s/\_/\./;
109:
110: my $symbparm=$symb.'.'.$what;
111: my $mapparm=$mapname.'___(all).'.$what;
112: my $usercourseprefix=$uname.'_'.$udom.'_'.$cid;
113:
114: my $seclevel= $usercourseprefix.'.['.$csec.'].'.$what;
115: my $seclevelr=$usercourseprefix.'.['.$csec.'].'.$symbparm;
116: my $seclevelm=$usercourseprefix.'.['.$csec.'].'.$mapparm;
117:
118: my $courselevel= $usercourseprefix.'.'.$what;
119: my $courselevelr=$usercourseprefix.'.'.$symbparm;
120: my $courselevelm=$usercourseprefix.'.'.$mapparm;
121:
122: # ---------------------------------------------------------- first, check user
123: if ($uname) {
124: if ($useropt{$courselevelr}) { return $useropt{$courselevelr}; }
125: if ($useropt{$courselevelm}) { return $useropt{$courselevelm}; }
126: if ($useropt{$courselevel}) { return $useropt{$courselevel}; }
127: }
128:
129: # ------------------------------------------------------- second, check course
130: if ($csec) {
131: if ($courseopt{$seclevelr}) { return $courseopt{$seclevelr}; }
132: if ($courseopt{$seclevelm}) { return $courseopt{$seclevelm}; }
133: if ($courseopt{$seclevel}) { return $courseopt{$seclevel}; }
134: }
135:
136: if ($courseopt{$courselevelr}) { return $courseopt{$courselevelr}; }
137: if ($courseopt{$courselevelm}) { return $courseopt{$courselevelm}; }
138: if ($courseopt{$courselevel}) { return $courseopt{$courselevel}; }
139:
140: # ----------------------------------------------------- third, check map parms
141:
142: my $thisparm=$parmhash{$symbparm};
143: if ($thisparm) { return $thisparm; }
144:
145: # ----------------------------------------------------- fourth , check default
146:
147: my $default=&Apache::lonnet::metadata($fn,$rwhat.'.default');
148: if ($default) { return $default}
149:
150: # --------------------------------------------------- fifth , cascade up parts
151:
152: my ($space,@qualifier)=split(/\./,$rwhat);
153: my $qualifier=join('.',@qualifier);
154: unless ($space eq '0') {
155: my ($part,$id)=split(/\_/,$space);
156: if ($id) {
157: my $partgeneral=&parmval($part.".$qualifier",$symb);
158: if ($partgeneral) { return $partgeneral; }
159: } else {
160: my $resourcegeneral=&parmval("0.$qualifier",$symb);
161: if ($resourcegeneral) { return $resourcegeneral; }
162: }
163: }
164: return '';
165: }
166:
167:
168:
169: # ------------------------------------------------------------- Find out status
170: # return codes
171: # tcode (timecode)
172: # 1: will open later
173: # 2: is open and not past due yet
174: # 3: is past due date
175: # 4: due in the next 24 hours
176: #
177: # code (curent solved status)
178: # 1: not attempted
179: # 2: attempted but wrong, or incorrect by instructor
180: # 3: solved or correct by instructor
181: # "excused" needs to be supported, but is not yet. Could be code=4.
182: sub astatus {
183: my $rid=shift;
184: my $code=1;
185: my $ctext='';
186: $rid=~/(\d+)\.(\d+)/;
187: my $symb=&Apache::lonnet::declutter($hash{'map_id_'.$1}).'___'.$2.'___'.
188: &Apache::lonnet::declutter($hash{'src_'.$rid});
189: my %duedate=();
190: my %opendate=();
191: my %answerdate=();
192: # need to always check part 0's open/due/answer status
193: foreach (sort(split(/\,/,&Apache::lonnet::metadata($hash{'src_'.$rid},'keys')))) {
194: if ($_=~/^parameter\_(.*)\_opendate$/) {
195: my $part=$1;
196: $duedate{$part}=&parmval($part.'.duedate',$symb);
197: $opendate{$part}=&parmval($part.'.opendate',$symb);
198: $answerdate{$part}=&parmval($part.'.answerdate',$symb);
199: }
200: }
201: my $now=time;
202: my $tcode=0;
203:
204: my %returnhash=&Apache::lonnet::restore($symb);
205:
206: foreach (sort(keys(%opendate))) {
207: my $duedate=$duedate{$_};
208: my $opendate=$opendate{$_};
209: my $answerdate=$answerdate{$_};
210: my $preface='';
211: unless ($_ eq '0') { $preface=' Part: '.$_.' '; }
212: if ($opendate) {
213: if ($now<$duedate || (!$duedate)) {
214: unless ($tcode==4) { $tcode=2; }
215: if ($duedate) {
216: $ctext.=$preface.'Due: '.localtime($duedate);
217: } else {
218: $ctext.=$preface.'No Due Date';
219: }
220: if ($now<$opendate) {
221: unless ($tcode) { $tcode=1; }
222: $ctext.=$preface.'Open: '.localtime($opendate);
223: }
224: if ($duedate && $duedate-$now<86400) {
225: $tcode=4;
226: $ctext.=$preface.'Due: '.localtime($duedate);
227: }
228: } else {
229: unless (($tcode==4) || ($tcode eq 2)) { $tcode=3; }
230: if ($now<$answerdate) {
231: $ctext.='Answer: '.localtime($duedate);
232: }
233: }
234: } else {
235: unless (($tcode==2) || ($tcode==4)) { $tcode=1; }
236: }
237:
238: my $status=$returnhash{'resource.'.$_.'.solved'};
239:
240: if ($status eq 'correct_by_student') {
241: unless ($code==2) { $code=3; }
242: $ctext.=' solved';
243: } elsif ($status eq 'correct_by_override') {
244: unless ($code==2) { $code=3; }
245: $ctext.=' override';
246: } elsif ($status eq 'incorrect_attempted') {
247: $code=2;
248: $ctext.=' ('.
249: ($returnhash{'resource.'.$_.'.tries'}?
250: $returnhash{'resource.'.$_.'.tries'}:'0');
251: my $numtries = &parmval($_.'.maxtries',$symb);
252: if ($numtries) { $ctext.='/'.$numtries.' tries'; }
253: $ctext.=')';
254: } elsif ($status eq 'incorrect_by_override') {
255: $code=2;
256: $ctext.=' override';
257: } elsif ($status eq 'excused') {
258: unless ($code==2) { $code=3; }
259: $ctext.=' excused';
260: }
261: }
262:
263: return 'p'.$code.$tcode.'"'.$ctext.'"';
264: }
265:
266: # ------------------------------------------------------------ Build page table
267:
268: sub tracetable {
269: my ($sofar,$rid,$beenhere)=@_;
270: my $further=$sofar;
271: unless ($beenhere=~/\&$rid\&/) {
272: $beenhere.=$rid.'&';
273:
274: if (defined($hash{'is_map_'.$rid})) {
275: $sofar++;
276: my $tprefix='';
277: if ($hash{'map_type_'.$hash{'map_pc_'.$hash{'src_'.$rid}}}
278: eq 'sequence') {
279: $tprefix='h';
280: }
281: if (defined($rows[$sofar])) {
282: $rows[$sofar].='&'.$tprefix.$rid;
283: } else {
284: $rows[$sofar]=$tprefix.$rid;
285: }
286: if ((defined($hash{'map_start_'.$hash{'src_'.$rid}})) &&
287: (defined($hash{'map_finish_'.$hash{'src_'.$rid}})) &&
288: ($tprefix eq 'h')) {
289: my $frid=$hash{'map_finish_'.$hash{'src_'.$rid}};
290: $sofar=
291: &tracetable($sofar,$hash{'map_start_'.$hash{'src_'.$rid}},
292: '&'.$frid.'&');
293: $sofar++;
294: if ($hash{'src_'.$frid}) {
295: my $brepriv=&Apache::lonnet::allowed('bre',$hash{'src_'.$frid});
296: if (($brepriv eq '2') || ($brepriv eq 'F')) {
297: my $pprefix='';
298: if ($hash{'src_'.$frid}=~
299: /\.(problem|exam|quiz|assess|survey|form)$/) {
300: $pprefix=&astatus($frid);
301:
302: }
303: if (defined($rows[$sofar])) {
304: $rows[$sofar].='&'.$pprefix.$frid;
305: } else {
306: $rows[$sofar]=$pprefix.$frid;
307: }
308: }
309: }
310: }
311: } else {
312: $sofar++;
313: if ($hash{'src_'.$rid}) {
314: my $brepriv=&Apache::lonnet::allowed('bre',$hash{'src_'.$rid});
315: if (($brepriv eq '2') || ($brepriv eq 'F')) {
316: my $pprefix='';
317: if ($hash{'src_'.$rid}=~
318: /\.(problem|exam|quiz|assess|survey|form)$/) {
319: $pprefix=&astatus($rid);
320: }
321: if (defined($rows[$sofar])) {
322: $rows[$sofar].='&'.$pprefix.$rid;
323: } else {
324: $rows[$sofar]=$pprefix.$rid;
325: }
326: }
327: }
328: }
329:
330: if (defined($hash{'to_'.$rid})) {
331: my $mincond=1;
332: my $next='';
333: foreach (split(/\,/,$hash{'to_'.$rid})) {
334: my $thiscond=
335: &Apache::lonnet::directcondval($hash{'condid_'.$hash{'undercond_'.$_}});
336: if ($thiscond>=$mincond) {
337: if ($next) {
338: $next.=','.$_.':'.$thiscond;
339: } else {
340: $next=$_.':'.$thiscond;
341: }
342: if ($thiscond>$mincond) { $mincond=$thiscond; }
343: }
344: }
345: foreach (split(/\,/,$next)) {
346: my ($linkid,$condval)=split(/\:/,$_);
347: if ($condval>=$mincond) {
348: my $now=&tracetable($sofar,$hash{'goesto_'.$linkid},$beenhere);
349: if ($now>$further) { $further=$now; }
350: }
351: }
352: }
353: }
354: return $further;
355: }
356:
357: # ================================================================ Main Handler
358:
359: sub handler {
360: my $r=shift;
361:
362:
363: # ------------------------------------------- Set document type for header only
364:
365: if ($r->header_only) {
366: if ($ENV{'browser.mathml'}) {
367: $r->content_type('text/xml');
368: } else {
369: $r->content_type('text/html');
370: }
371: $r->send_http_header;
372: return OK;
373: }
374: my $requrl=$r->uri;
375: my $hashtied;
376: # ----------------------------------------------------------------- Tie db file
377: my $fn;
378: if ($ENV{'request.course.fn'}) {
379: $fn=$ENV{'request.course.fn'};
380: if (-e "$fn.db") {
381: if ((tie(%hash,'GDBM_File',"$fn.db",&GDBM_READER,0640)) &&
382: (tie(%parmhash,'GDBM_File',
383: $ENV{'request.course.fn'}.'_parms.db',
384: &GDBM_READER,0640))) {
385: $hashtied=1;
386: }
387: }
388: }
389: if (!$hashtied) {
390: $ENV{'user.error.msg'}="$requrl:bre:0:0:Course not initialized";
391: return HTTP_NOT_ACCEPTABLE;
392: }
393:
394: # ------------------------------------------------------------------- Hash tied
395:
396: if ($ENV{'browser.mathml'}) {
397: $r->content_type('text/xml');
398: } else {
399: $r->content_type('text/html');
400: }
401: &Apache::loncommon::no_cache($r);
402: $r->send_http_header;
403:
404: my $firstres=$hash{'map_start_/res/'.$ENV{'request.course.uri'}};
405: my $lastres=$hash{'map_finish_/res/'.$ENV{'request.course.uri'}};
406: if (!(($firstres) && ($lastres))) {
407: $r->print('<html><body>Coursemap undefined.</body></html>');
408: } else {
409:
410: # ----------------------------------------------------------------- Render page
411: # -------------------------------------------------------------- Set parameters
412:
413:
414: # ---------------------------- initialize coursedata and userdata for this user
415: undef %courseopt;
416: undef %useropt;
417:
418: my $uname=$ENV{'user.name'};
419: my $udom=$ENV{'user.domain'};
420: my $uhome=$ENV{'user.home'};
421: my $cid=$ENV{'request.course.id'};
422: my $chome=$ENV{'course.'.$cid.'.home'};
423: my ($cdom,$cnum)=split(/\_/,$cid);
424:
425: my $userprefix=$uname.'_'.$udom.'_';
426:
427: unless ($uhome eq 'no_host') {
428: # -------------------------------------------------------------- Get coursedata
429: unless ((time-$courserdatas{$cid.'.last_cache'})<240) {
430: my $reply=&Apache::lonnet::reply('dump:'.$cdom.':'.$cnum.
431: ':resourcedata',$chome);
432: if ($reply!~/^error\:/) {
433: $courserdatas{$cid}=$reply;
434: $courserdatas{$cid.'.last_cache'}=time;
435: }
436: }
437: foreach (split(/\&/,$courserdatas{$cid})) {
438: my ($name,$value)=split(/\=/,$_);
439: $courseopt{$userprefix.&Apache::lonnet::unescape($name)}=
440: &Apache::lonnet::unescape($value);
441: }
442: # --------------------------------------------------- Get userdata (if present)
443: unless ((time-$userrdatas{$uname.'___'.$udom.'.last_cache'})<240) {
444: my $reply=&Apache::lonnet::reply('dump:'.$udom.':'.$uname.':resourcedata',$uhome);
445: if ($reply!~/^error\:/) {
446: $userrdatas{$uname.'___'.$udom}=$reply;
447: $userrdatas{$uname.'___'.$udom.'.last_cache'}=time;
448: }
449: }
450: foreach (split(/\&/,$userrdatas{$uname.'___'.$udom})) {
451: my ($name,$value)=split(/\=/,$_);
452: $useropt{$userprefix.&Apache::lonnet::unescape($name)}=
453: &Apache::lonnet::unescape($value);
454: }
455: }
456:
457: @rows=();
458:
459: &tracetable(0,$firstres,'&'.$lastres.'&');
460: if ($hash{'src_'.$lastres}) {
461: my $brepriv=&Apache::lonnet::allowed('bre',$hash{'src_'.$lastres});
462: if (($brepriv eq '2') || ($brepriv eq 'F')) {
463: $rows[$#rows+1]=''.$lastres;
464: }
465: }
466:
467: # ------------------------------------------------------------------ Page parms
468:
469: my $j;
470: my $i;
471: my $lcm=1;
472: my $contents=0;
473:
474: # ---------------------------------------------- Go through table to get layout
475:
476: for ($i=0;$i<=$#rows;$i++) {
477: if ($rows[$i]) {
478: $contents++;
479: my @colcont=split(/\&/,$rows[$i]);
480: $lcm*=($#colcont+1)/euclid($lcm,($#colcont+1));
481: }
482: }
483:
484:
485: unless ($contents) {
486: $r->print('<html><body>Empty Map.</body></html>');
487: } else {
488:
489: # ------------------------------------------------------------------ Build page
490:
491: my $currenturl=$ENV{'form.postdata'};
492: $currenturl=~s/^http\:\/\///;
493: $currenturl=~s/^[^\/]+//;
494:
495: # ---------------------------------------------------------------- Send headers
496:
497: my $date=localtime;
498: my $now=time;
499: # ----------------------------------------- Get email status and discussiontime
500:
501: my %emailstatus=&Apache::lonnet::dump('email_status');
502: my $logouttime=$emailstatus{'logout'};
503: my $courseleave=$emailstatus{'logout_'.$ENV{'request.course.id'}};
504: my $lastcheck=($courseleave>$logouttime?$courseleave:$logouttime);
505:
506: my %discussiontimes=&Apache::lonnet::dump('discussiontimes',
507: $cdom,$cnum);
508:
509: my %feedback=();
510: my %error=();
511: foreach my $msgid (split(/\&/,&Apache::lonnet::reply('keys:'.
512: $ENV{'user.domain'}.':'.
513: $ENV{'user.name'}.':nohist_email',
514: $ENV{'user.home'}))) {
515: $msgid=&Apache::lonnet::unescape($msgid);
516: my $plain=&Apache::lonnet::unescape(&Apache::lonnet::unescape($msgid));
517: if ($plain=~/(Error|Feedback) \[([^\]]+)\]/) {
518: my ($what,$url)=($1,$2);
519: my %status=
520: &Apache::lonnet::get('email_status',[$msgid]);
521: if ($status{$msgid}=~/^error\:/) {
522: $status{$msgid}='';
523: }
524:
525: if (($status{$msgid} eq 'new') ||
526: (!$status{$msgid})) {
527: if ($what eq 'Error') {
528: $error{$url}.=','.$msgid;
529: } else {
530: $feedback{$url}.=','.$msgid;
531: }
532: }
533: }
534: }
535: # ----------------------------------------------------------- Start Page Output
536: $r->print('<html><head><title>Navigate LON-CAPA Maps</title></head>');
537: $r->print('<body bgcolor="#FFFFFF"');
538: if (($currenturl=~/^\/res/) &&
539: ($currenturl!~/^\/res\/adm/)) {
540: $r->print(' onLoad="window.location.hash='."'curloc'".'"');
541: }
542: $r->print('><script>window.focus();</script>'.
543: '<img align=right src=/adm/lonIcons/lonlogos.gif>'.
544: '<h1>Navigate Course Map</h1>'.
545: "<h3>$date</h3>");
546: $r->rflush();
547: $r->print('<img src="/adm/lonMisc/chat.gif"> New discussion since '.
548: localtime($lastcheck).
549: '<br><img src="/adm/lonMisc/feedback.gif"> New message (click to open)<p>');
550: if (($currenturl=~/^\/res/) &&
551: ($currenturl!~/^\/res\/adm/)) {
552: $r->print('<a href="#curloc">Current Location</a><p>');
553: }
554: # ----------------------------------------------------- The little content list
555: for ($i=0;$i<=$#rows;$i++) {
556: if ($rows[$i]) {
557: my @colcont=split(/\&/,$rows[$i]);
558: my $avespan=$lcm/($#colcont+1);
559: for ($j=0;$j<=$#colcont;$j++) {
560: my $rid=$colcont[$j];
561: if ($rid=~/^h(.+)/) {
562: $rid=$1;
563: $r->print(' <a href="#'.
564: $rid.'">'.$hash{'title_'.$rid}.
565: '</a><br>');
566: }
567: }
568: }
569: }
570: # ----------------------------------------------------------------- Start table
571: $r->print('<hr><table cols="'.$lcm.'" border="0">');
572: for ($i=0;$i<=$#rows;$i++) {
573: if ($rows[$i]) {
574: $r->print("\n<tr>");
575: my @colcont=split(/\&/,$rows[$i]);
576: my $avespan=$lcm/($#colcont+1);
577: for ($j=0;$j<=$#colcont;$j++) {
578: my $rid=$colcont[$j];
579: my $add='<td> ';
580: my $adde='</td>';
581: my $hwk='<font color="#223322">';
582: my $hwke='</font>';
583: if ($rid=~/^h(.+)/) {
584: $rid=$1;
585: $add='<th bgcolor="#AAFF55"><a name="'.$rid.'">';
586: $adde='</th>';
587: }
588: if ($rid=~/^p(\d)(\d)\"([\w\: \(\)\/\,]*)\"(.+)/) {
589: # sub astatus describes what code/tcode mean
590: my $code=$1;
591: my $tcode=$2;
592: my $ctext=$3;
593: $rid=$4;
594: if ($tcode eq '1') {
595: $add='<td bgcolor="#AAAAAA">';
596: }
597: if ($code eq '3') {
598: $add='<td bgcolor="#AAFFAA">';
599: } else {
600: $add='<td bgcolor="#FFAAAA">';
601: if ($tcode eq '2') {
602: $add='<td bgcolor="#FFFFAA">';
603: }
604: if ($tcode eq '4') {
605: $add='<td bgcolor="#FFFF33">';
606: $adde='</td>';
607: }
608: }
609: $hwk='<font color="#888811"><b>';
610: $hwke='</b></font>';
611: if ($code eq '1') {
612: $hwke='</b> ('.$ctext.')</font>';
613: }
614: if ($code eq '2') {
615: $hwk='<font color="#992222"><b>';
616: $hwke='</b> ('.$ctext.')</font>';
617: }
618: if ($code eq '3') {
619: $hwk='<font color="#229922"><b>';
620: $hwke='</b> ('.$ctext.')</font>';
621: }
622: }
623: if ($hash{'src_'.$rid} eq $currenturl) {
624: $add=$add.'<a name="curloc"></a>'.
625: '<font color=red size=+2><b>> </b></font>';
626: $adde=
627: '<font color=red size=+2><b> <</b></font>'.$adde;
628: }
629: my $src=
630: &Apache::lonnet::declutter($hash{'src_'.$rid});
631: $rid=~/^(\d+)\.(\d+)$/;
632: my $symb=
633: &Apache::lonnet::declutter($hash{'map_id_'.$1}).'___'.$2.'___'.$src;
634: if ($discussiontimes{$symb}>$lastcheck) {
635: $adde=
636: '<img border=0 src="/adm/lonMisc/chat.gif">'.
637: $adde;
638: }
639: if ($error{$src}) {
640: foreach (split(/\,/,$error{$src})) {
641: if ($_) {
642: $adde=
643: ' <a href="/adm/email?display='.
644: &Apache::lonnet::escape($_).
645: '"><img src="/adm/lonMisc/bomb.gif" border=0></a>'
646: .$adde;
647: }
648: }
649: }
650: if ($feedback{$src}) {
651: foreach (split(/\,/,$feedback{$src})) {
652: if ($_) {
653: $adde=
654: ' <a href="/adm/email?display='.
655: &Apache::lonnet::escape($_).
656: '"><img src="/adm/lonMisc/feedback.gif" border=0></a>'
657: .$adde;
658: }
659: }
660: }
661: $r->print($add.'<a href="'.$hash{'src_'.$rid}.
662: '">'.$hwk.
663: $hash{'title_'.$rid}.$hwke.'</a>'.$adde);
664: }
665: $r->print('</tr>');
666: }
667: }
668: $r->print("\n</table>");
669: $r->print('</body></html>');
670: # -------------------------------------------------------------------- End page
671: }
672: # ------------------------------------------------------------- End render page
673: }
674: # ------------------------------------------------------------------ Untie hash
675: unless (untie(%hash)) {
676: &Apache::lonnet::logthis("<font color=blue>WARNING: ".
677: "Could not untie coursemap $fn (browse).</font>");
678: }
679: unless (untie(%parmhash)) {
680: &Apache::lonnet::logthis("<font color=blue>WARNING: ".
681: "Could not untie parmhash (browse).</font>");
682: }
683: return OK;
684: }
685:
686: 1;
687: __END__
688:
689:
690:
691:
692:
693:
694:
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