1: # The LearningOnline Network with CAPA
2: # Navigate Maps Handler
3: #
4: # $Id: lonnavmaps.pm,v 1.31 2002/03/15 23:39:41 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: # 4: partially correct (one or more parts correct)
182: # "excused" needs to be supported, but is not yet.
183: sub astatus {
184: my $rid=shift;
185: my $code=0;
186: my $ctext='';
187: $rid=~/(\d+)\.(\d+)/;
188: my $symb=&Apache::lonnet::declutter($hash{'map_id_'.$1}).'___'.$2.'___'.
189: &Apache::lonnet::declutter($hash{'src_'.$rid});
190: my %duedate=();
191: my %opendate=();
192: my %answerdate=();
193: # need to always check part 0's open/due/answer status
194: foreach (sort(split(/\,/,&Apache::lonnet::metadata($hash{'src_'.$rid},'keys')))) {
195: if ($_=~/^parameter\_(.*)\_opendate$/) {
196: my $part=$1;
197: $duedate{$part}=&parmval($part.'.duedate',$symb);
198: $opendate{$part}=&parmval($part.'.opendate',$symb);
199: $answerdate{$part}=&parmval($part.'.answerdate',$symb);
200: }
201: }
202: my $now=time;
203: my $tcode=0;
204:
205: my %returnhash=&Apache::lonnet::restore($symb);
206:
207: foreach (sort(keys(%opendate))) {
208: my $duedate=$duedate{$_};
209: my $opendate=$opendate{$_};
210: my $answerdate=$answerdate{$_};
211: my $preface='';
212: unless ($_ eq '0') { $preface=' Part: '.$_.' '; }
213: if ($opendate) {
214: if ($now<$duedate || (!$duedate)) {
215: unless ($tcode==4) { $tcode=2; }
216: if ($duedate) {
217: $ctext.=$preface.'Due: '.localtime($duedate);
218: } else {
219: $ctext.=$preface.'No Due Date';
220: }
221: if ($now<$opendate) {
222: unless ($tcode) { $tcode=1; }
223: $ctext.=$preface.'Open: '.localtime($opendate);
224: }
225: if ($duedate && $duedate-$now<86400) {
226: $tcode=4;
227: $ctext.=$preface.'Due: '.localtime($duedate);
228: }
229: } else {
230: unless (($tcode==4) || ($tcode eq 2)) { $tcode=3; }
231: if ($now<$answerdate) {
232: $ctext.='Answer: '.localtime($duedate);
233: }
234: }
235: } else {
236: unless (($tcode==2) || ($tcode==4)) { $tcode=1; }
237: }
238:
239: my $status=$returnhash{'resource.'.$_.'.solved'};
240:
241: if ($status eq 'correct_by_student') {
242: if ($code==0||$code==3) { $code=3; } else { $code=4; }
243: $ctext.=' solved';
244: } elsif ($status eq 'correct_by_override') {
245: if ($code==0||$code==3) { $code=3; } else { $code=4; }
246: $ctext.=' override';
247: } elsif ($status eq 'incorrect_attempted') {
248: if ($code!=4 && $code!=3) { $code=2; }
249: if ($code==3) { $code=4; }
250: $ctext.=' ('.
251: ($returnhash{'resource.'.$_.'.tries'}?
252: $returnhash{'resource.'.$_.'.tries'}:'0');
253: my $numtries = &parmval($_.'.maxtries',$symb);
254: if ($numtries) { $ctext.='/'.$numtries.' tries'; }
255: $ctext.=')';
256: } elsif ($status eq 'incorrect_by_override') {
257: if ($code!=4 && $code!=3) { $code=2; }
258: if ($code==3) { $code=4; }
259: $ctext.=' override';
260: } elsif ($status eq 'excused') {
261: if ($code==0||$code==3) { $code=3; } else { $code=4; }
262: $ctext.=' excused';
263: } else {
264: if ($code==0) { $code=1; }
265: }
266: }
267:
268: return 'p'.$code.$tcode.'"'.$ctext.'"';
269: }
270:
271:
272: sub addresource {
273: my ($resource,$sofar,$rid,$showtypes)=@_;
274: &Apache::lonxml::debug("Adding $resource allowing $showtypes");
275: if ($showtypes eq 'problems') {
276: if ($resource!~/\.(problem|exam|quiz|assess|survey|form)$/) {
277: &Apache::lonxml::debug("Returning early");
278: return;
279: }
280: }
281: my $brepriv=&Apache::lonnet::allowed('bre',$resource);
282: if ($hash{'src_'.$rid}) {
283: if (($brepriv eq '2') || ($brepriv eq 'F')) {
284: my $pprefix='';
285: if ($resource=~/\.(problem|exam|quiz|assess|survey|form)$/) {
286: $pprefix=&astatus($rid);
287: }
288: if (defined($rows[$sofar])) {
289: $rows[$sofar].='&'.$pprefix.$rid;
290: } else {
291: $rows[$sofar]=$pprefix.$rid;
292: }
293: }
294: }
295: }
296:
297: sub followlinks () {
298: my ($rid,$sofar,$beenhere,$further,$showtypes)=@_;
299: my $mincond=1;
300: my $next='';
301: foreach (split(/\,/,$hash{'to_'.$rid})) {
302: my $thiscond=
303: &Apache::lonnet::directcondval($hash{'condid_'.$hash{'undercond_'.$_}});
304: if ($thiscond>=$mincond) {
305: if ($next) {
306: $next.=','.$_.':'.$thiscond;
307: } else {
308: $next=$_.':'.$thiscond;
309: }
310: if ($thiscond>$mincond) { $mincond=$thiscond; }
311: }
312: }
313: foreach (split(/\,/,$next)) {
314: my ($linkid,$condval)=split(/\:/,$_);
315: if ($condval>=$mincond) {
316: &Apache::lonxml::debug("following link $linkid");
317: my $now=&tracetable($sofar,$hash{'goesto_'.$linkid},
318: $beenhere,$showtypes);
319: if ($now>$further) { $further=$now; }
320: }
321: }
322: return $further;
323: }
324: # ------------------------------------------------------------ Build page table
325:
326: sub tracetable {
327: my ($sofar,$rid,$beenhere,$showtypes)=@_;
328: my $further=$sofar;
329: #$Apache::lonxml::debug=1;
330: &Apache::lonxml::debug("$rid ; $sofar ; $beenhere");
331: if ($beenhere=~/\&$rid\&/) {
332: return $further;
333: }
334: $beenhere.=$rid.'&';
335:
336: if (defined($hash{'is_map_'.$rid})) {
337: $sofar++;
338: my $tprefix='';
339: if ($hash{'map_type_'.$hash{'map_pc_'.$hash{'src_'.$rid}}}
340: eq 'sequence') {
341: $tprefix='h';
342: } elsif ($hash{'map_type_'.$hash{'map_pc_'.$hash{'src_'.$rid}}}
343: eq 'page') {
344: $tprefix='i';
345: $showtypes='problems';
346: }
347: if (defined($rows[$sofar])) {
348: $rows[$sofar].='&'.$tprefix.$rid;
349: } else {
350: $rows[$sofar]=$tprefix.$rid;
351: }
352: if ((defined($hash{'map_start_'.$hash{'src_'.$rid}})) &&
353: (defined($hash{'map_finish_'.$hash{'src_'.$rid}}))) {
354: my $frid=$hash{'map_finish_'.$hash{'src_'.$rid}};
355: $sofar=&tracetable($sofar,
356: $hash{'map_start_'.$hash{'src_'.$rid}},
357: '&'.$frid.'&',$showtypes);
358: $sofar++;
359: &addresource($hash{'src_'.$frid},$sofar,$frid,$showtypes);
360: if ($tprefix eq 'i') { $showtypes=''; }
361: }
362: } else {
363: $sofar++;
364: &addresource($hash{'src_'.$rid},$sofar,$rid,$showtypes);
365: }
366:
367: if (defined($hash{'to_'.$rid})) {
368: $further=&followlinks($rid,$sofar,$beenhere,$further,$showtypes);
369: }
370:
371: return $further;
372: }
373:
374: # ================================================================ Main Handler
375:
376: sub handler {
377: my $r=shift;
378:
379:
380: # ------------------------------------------- Set document type for header only
381:
382: if ($r->header_only) {
383: if ($ENV{'browser.mathml'}) {
384: $r->content_type('text/xml');
385: } else {
386: $r->content_type('text/html');
387: }
388: $r->send_http_header;
389: return OK;
390: }
391: my $requrl=$r->uri;
392: my $hashtied;
393: # ----------------------------------------------------------------- Tie db file
394: my $fn;
395: if ($ENV{'request.course.fn'}) {
396: $fn=$ENV{'request.course.fn'};
397: if (-e "$fn.db") {
398: if ((tie(%hash,'GDBM_File',"$fn.db",&GDBM_READER,0640)) &&
399: (tie(%parmhash,'GDBM_File',
400: $ENV{'request.course.fn'}.'_parms.db',
401: &GDBM_READER,0640))) {
402: $hashtied=1;
403: }
404: }
405: }
406: if (!$hashtied) {
407: $ENV{'user.error.msg'}="$requrl:bre:0:0:Course not initialized";
408: return HTTP_NOT_ACCEPTABLE;
409: }
410:
411: # ------------------------------------------------------------------- Hash tied
412:
413: if ($ENV{'browser.mathml'}) {
414: $r->content_type('text/xml');
415: } else {
416: $r->content_type('text/html');
417: }
418: &Apache::loncommon::no_cache($r);
419: $r->send_http_header;
420:
421: my $firstres=$hash{'map_start_/res/'.$ENV{'request.course.uri'}};
422: my $lastres=$hash{'map_finish_/res/'.$ENV{'request.course.uri'}};
423: if (!(($firstres) && ($lastres))) {
424: $r->print('<html><body>Coursemap undefined.</body></html>');
425: } else {
426:
427: # ----------------------------------------------------------------- Render page
428: # -------------------------------------------------------------- Set parameters
429:
430:
431: # ---------------------------- initialize coursedata and userdata for this user
432: undef %courseopt;
433: undef %useropt;
434:
435: my $uname=$ENV{'user.name'};
436: my $udom=$ENV{'user.domain'};
437: my $uhome=$ENV{'user.home'};
438: my $cid=$ENV{'request.course.id'};
439: my $chome=$ENV{'course.'.$cid.'.home'};
440: my ($cdom,$cnum)=split(/\_/,$cid);
441:
442: my $userprefix=$uname.'_'.$udom.'_';
443:
444: unless ($uhome eq 'no_host') {
445: # -------------------------------------------------------------- Get coursedata
446: unless ((time-$courserdatas{$cid.'.last_cache'})<240) {
447: my $reply=&Apache::lonnet::reply('dump:'.$cdom.':'.$cnum.
448: ':resourcedata',$chome);
449: if ($reply!~/^error\:/) {
450: $courserdatas{$cid}=$reply;
451: $courserdatas{$cid.'.last_cache'}=time;
452: }
453: }
454: foreach (split(/\&/,$courserdatas{$cid})) {
455: my ($name,$value)=split(/\=/,$_);
456: $courseopt{$userprefix.&Apache::lonnet::unescape($name)}=
457: &Apache::lonnet::unescape($value);
458: }
459: # --------------------------------------------------- Get userdata (if present)
460: unless ((time-$userrdatas{$uname.'___'.$udom.'.last_cache'})<240) {
461: my $reply=&Apache::lonnet::reply('dump:'.$udom.':'.$uname.':resourcedata',$uhome);
462: if ($reply!~/^error\:/) {
463: $userrdatas{$uname.'___'.$udom}=$reply;
464: $userrdatas{$uname.'___'.$udom.'.last_cache'}=time;
465: }
466: }
467: foreach (split(/\&/,$userrdatas{$uname.'___'.$udom})) {
468: my ($name,$value)=split(/\=/,$_);
469: $useropt{$userprefix.&Apache::lonnet::unescape($name)}=
470: &Apache::lonnet::unescape($value);
471: }
472: }
473:
474: @rows=();
475:
476: &tracetable(0,$firstres,'&'.$lastres.'&');
477: if ($hash{'src_'.$lastres}) {
478: my $brepriv=&Apache::lonnet::allowed('bre',$hash{'src_'.$lastres});
479: if (($brepriv eq '2') || ($brepriv eq 'F')) {
480: $rows[$#rows+1]=''.$lastres;
481: }
482: }
483:
484: # ------------------------------------------------------------------ Page parms
485:
486: my $j;
487: my $i;
488: my $lcm=1;
489: my $contents=0;
490:
491: # ---------------------------------------------- Go through table to get layout
492:
493: for ($i=0;$i<=$#rows;$i++) {
494: if ($rows[$i]) {
495: &Apache::lonxml::debug($rows[$i]);
496: $contents++;
497: my @colcont=split(/\&/,$rows[$i]);
498: $lcm*=($#colcont+1)/euclid($lcm,($#colcont+1));
499: }
500: }
501:
502:
503: unless ($contents) {
504: $r->print('<html><body>Empty Map.</body></html>');
505: } else {
506:
507: # ------------------------------------------------------------------ Build page
508:
509: my $currenturl=$ENV{'form.postdata'};
510: $currenturl=~s/^http\:\/\///;
511: $currenturl=~s/^[^\/]+//;
512:
513: # ---------------------------------------------------------------- Send headers
514:
515: my $date=localtime;
516: my $now=time;
517: # ----------------------------------------- Get email status and discussiontime
518:
519: my %emailstatus=&Apache::lonnet::dump('email_status');
520: my $logouttime=$emailstatus{'logout'};
521: my $courseleave=$emailstatus{'logout_'.$ENV{'request.course.id'}};
522: my $lastcheck=($courseleave>$logouttime?$courseleave:$logouttime);
523:
524: my %discussiontimes=&Apache::lonnet::dump('discussiontimes',
525: $cdom,$cnum);
526:
527: my %feedback=();
528: my %error=();
529: foreach my $msgid (split(/\&/,&Apache::lonnet::reply('keys:'.
530: $ENV{'user.domain'}.':'.
531: $ENV{'user.name'}.':nohist_email',
532: $ENV{'user.home'}))) {
533: $msgid=&Apache::lonnet::unescape($msgid);
534: my $plain=&Apache::lonnet::unescape(&Apache::lonnet::unescape($msgid));
535: if ($plain=~/(Error|Feedback) \[([^\]]+)\]/) {
536: my ($what,$url)=($1,$2);
537: my %status=
538: &Apache::lonnet::get('email_status',[$msgid]);
539: if ($status{$msgid}=~/^error\:/) {
540: $status{$msgid}='';
541: }
542:
543: if (($status{$msgid} eq 'new') ||
544: (!$status{$msgid})) {
545: if ($what eq 'Error') {
546: $error{$url}.=','.$msgid;
547: } else {
548: $feedback{$url}.=','.$msgid;
549: }
550: }
551: }
552: }
553: # ----------------------------------------------------------- Start Page Output
554: $r->print('<html><head><title>Navigate LON-CAPA Maps</title></head>');
555: $r->print('<body bgcolor="#FFFFFF"');
556: if (($currenturl=~/^\/res/) &&
557: ($currenturl!~/^\/res\/adm/)) {
558: $r->print(' onLoad="window.location.hash='."'curloc'".'"');
559: }
560: $r->print('><script>window.focus();</script>'.
561: '<img align=right src=/adm/lonIcons/lonlogos.gif>'.
562: '<h1>Navigate Course Map</h1>'.
563: "<h3>$date</h3>");
564: $r->rflush();
565: $r->print('<img src="/adm/lonMisc/chat.gif"> New discussion since '.
566: localtime($lastcheck).
567: '<br><img src="/adm/lonMisc/feedback.gif"> New message (click to open)<p>');
568: if (($currenturl=~/^\/res/) &&
569: ($currenturl!~/^\/res\/adm/)) {
570: $r->print('<a href="#curloc">Current Location</a><p>');
571: }
572: # ----------------------------------------------------- The little content list
573: for ($i=0;$i<=$#rows;$i++) {
574: if ($rows[$i]) {
575: my @colcont=split(/\&/,$rows[$i]);
576: my $avespan=$lcm/($#colcont+1);
577: for ($j=0;$j<=$#colcont;$j++) {
578: my $rid=$colcont[$j];
579: if ($rid=~/^h(.+)/) {
580: $rid=$1;
581: $r->print(' <a href="#'.
582: $rid.'">'.$hash{'title_'.$rid}.
583: '</a><br>');
584: }
585: }
586: }
587: }
588: # ----------------------------------------------------------------- Start table
589: $r->print('<hr><table cols="'.$lcm.'" border="0">');
590: for ($i=0;$i<=$#rows;$i++) {
591: if ($rows[$i]) {
592: $r->print("\n<tr>");
593: my @colcont=split(/\&/,$rows[$i]);
594: my $avespan=$lcm/($#colcont+1);
595: for ($j=0;$j<=$#colcont;$j++) {
596: my $rid=$colcont[$j];
597: my $add='<td> ';
598: my $adde='</td>';
599: my $hwk='<font color="#223322">';
600: my $hwke='</font>';
601: if ($rid=~/^h(.+)/) {
602: $rid=$1;
603: $add='<th bgcolor="#AAFF55"><a name="'.$rid.'">';
604: $adde='</th>';
605: }
606: if ($rid=~/^i(.+)/) { $rid=$1; }
607: if ($rid=~/^p(\d)(\d)\"([\w\: \(\)\/\,]*)\"(.+)/) {
608: # sub astatus describes what code/tcode mean
609: my $code=$1;
610: my $tcode=$2;
611: my $ctext=$3;
612: $rid=$4;
613: if ($tcode eq '1') {
614: $add='<td bgcolor="#AAAAAA">';
615: }
616: if ($code eq '3') {
617: $add='<td bgcolor="#AAFFAA">';
618: } elsif ($code eq '4') {
619: $add='<td bgcolor="#E0FFAA">';
620: } else {
621: $add='<td bgcolor="#FFAAAA">';
622: if ($tcode eq '2') {
623: $add='<td bgcolor="#FFFFAA">';
624: }
625: if ($tcode eq '4') {
626: $add='<td bgcolor="#FFFF33">';
627: $adde='</td>';
628: }
629: }
630: $hwk='<font color="#888811"><b>';
631: $hwke='</b></font>';
632: if ($code eq '1') {
633: $hwke='</b> ('.$ctext.')</font>';
634: }
635: if ($code eq '2' || $code eq '4') {
636: $hwk='<font color="#992222"><b>';
637: $hwke='</b> ('.$ctext.')</font>';
638: }
639: if ($code eq '3') {
640: $hwk='<font color="#229922"><b>';
641: $hwke='</b> ('.$ctext.')</font>';
642: }
643: }
644: if ($hash{'src_'.$rid} eq $currenturl) {
645: $add=$add.'<a name="curloc"></a>'.
646: '<font color=red size=+2><b>> </b></font>';
647: $adde=
648: '<font color=red size=+2><b> <</b></font>'.$adde;
649: }
650: my $src=
651: &Apache::lonnet::declutter($hash{'src_'.$rid});
652: $rid=~/^(\d+)\.(\d+)$/;
653: my $symb=
654: &Apache::lonnet::declutter($hash{'map_id_'.$1}).'___'.$2.'___'.$src;
655: if ($discussiontimes{$symb}>$lastcheck) {
656: $adde=
657: '<img border=0 src="/adm/lonMisc/chat.gif">'.
658: $adde;
659: }
660: if ($error{$src}) {
661: foreach (split(/\,/,$error{$src})) {
662: if ($_) {
663: $adde=
664: ' <a href="/adm/email?display='.
665: &Apache::lonnet::escape($_).
666: '"><img src="/adm/lonMisc/bomb.gif" border=0></a>'
667: .$adde;
668: }
669: }
670: }
671: if ($feedback{$src}) {
672: foreach (split(/\,/,$feedback{$src})) {
673: if ($_) {
674: $adde=
675: ' <a href="/adm/email?display='.
676: &Apache::lonnet::escape($_).
677: '"><img src="/adm/lonMisc/feedback.gif" border=0></a>'
678: .$adde;
679: }
680: }
681: }
682: $r->print($add.'<a href="'.$hash{'src_'.$rid}.
683: '">'.$hwk.
684: $hash{'title_'.$rid}.$hwke.'</a>'.$adde);
685: }
686: $r->print('</tr>');
687: }
688: }
689: $r->print("\n</table>");
690: $r->print('</body></html>');
691: # -------------------------------------------------------------------- End page
692: }
693: # ------------------------------------------------------------- End render page
694: }
695: # ------------------------------------------------------------------ Untie hash
696: unless (untie(%hash)) {
697: &Apache::lonnet::logthis("<font color=blue>WARNING: ".
698: "Could not untie coursemap $fn (browse).</font>");
699: }
700: unless (untie(%parmhash)) {
701: &Apache::lonnet::logthis("<font color=blue>WARNING: ".
702: "Could not untie parmhash (browse).</font>");
703: }
704: return OK;
705: }
706:
707: 1;
708: __END__
709:
710:
711:
712:
713:
714:
715:
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