1: # The LearningOnline Network with CAPA
2: # Navigate Maps Handler
3: #
4: # $Id: lonnavmaps.pm,v 1.35 2002/03/26 23:14:39 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: # (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,$indent,$linkid)=@_;
274: if ($showtypes eq 'problems') {
275: if ($resource!~/\.(problem|exam|quiz|assess|survey|form)$/) {
276: return;
277: }
278: }
279: my $brepriv=&Apache::lonnet::allowed('bre',$resource);
280: if ($hash{'src_'.$rid}) {
281: if (($brepriv eq '2') || ($brepriv eq 'F')) {
282: my $pprefix='';
283: if ($resource=~/\.(problem|exam|quiz|assess|survey|form)$/) {
284: $pprefix=&astatus($rid);
285: }
286: $$sofar++;
287: if ($indent) { $pprefix='i'.$indent.','.$pprefix; }
288: if ($linkid) { $pprefix='l'.$linkid.','.$pprefix; }
289: if (defined($rows[$$sofar])) {
290: $rows[$$sofar].='&'.$pprefix.$rid;
291: } else {
292: $rows[$$sofar]=$pprefix.$rid;
293: }
294: }
295: }
296: }
297:
298: sub followlinks () {
299: my ($rid,$sofar,$beenhere,$further,$showtypes,$indent,$linkid)=@_;
300: my $mincond=1;
301: my $next='';
302: foreach (split(/\,/,$hash{'to_'.$rid})) {
303: my $thiscond=
304: &Apache::lonnet::directcondval($hash{'condid_'.$hash{'undercond_'.$_}});
305: if ($thiscond>=$mincond) {
306: if ($next) {
307: $next.=','.$_.':'.$thiscond;
308: } else {
309: $next=$_.':'.$thiscond;
310: }
311: if ($thiscond>$mincond) { $mincond=$thiscond; }
312: }
313: }
314: my $col=0;
315: &Apache::lonxml::debug("following links -$next-");
316: foreach (split(/\,/,$next)) {
317: my ($nextlinkid,$condval)=split(/\:/,$_);
318: if ($condval>=$mincond) {
319: my $now=&tracetable($sofar,$hash{'goesto_'.$nextlinkid},
320: $beenhere,$showtypes,$indent,$linkid);
321: if ($now>$further) {
322: if ($col>0) {
323: my $string;
324: for(my $i=0;$i<$col;$i++) { $string.='&'; }
325: for(my $i=$further+1;$now-1>$i;$i++) {
326: $rows[$i]=$string.$rows[$i];
327: }
328: }
329: $further=$now;
330: }
331: }
332: $col++;
333: }
334: return $further;
335: }
336: # ------------------------------------------------------------ Build page table
337:
338: sub tracetable {
339: my ($sofar,$rid,$beenhere,$showtypes,$indent,$linkid)=@_;
340: my $newshowtypes=$showtypes;
341: my $further=$sofar;
342: #$Apache::lonxml::debug=1;
343: &Apache::lonxml::debug("$rid ; $linkid ; $sofar ; $beenhere ; ".$hash{'src_'.$rid});
344: if ($beenhere=~/\&$rid\&/) { return $further; }
345: $beenhere.=$rid.'&';
346:
347: if (defined($hash{'is_map_'.$rid})) {
348: $sofar++;
349: my $tprefix='';
350: if ($hash{'map_type_'.$hash{'map_pc_'.$hash{'src_'.$rid}}}
351: eq 'sequence') {
352: $tprefix='h';
353: } elsif ($hash{'map_type_'.$hash{'map_pc_'.$hash{'src_'.$rid}}}
354: eq 'page') {
355: $tprefix='j';
356: if ($indent) { $tprefix='i'.$indent.','.$tprefix; }
357: if ($linkid) { $tprefix='l'.$linkid.','.$tprefix; }
358: $newshowtypes='problems';
359: $indent++;
360: #if in a .page continue to link the encompising .page
361: if (!$linkid) { $linkid=$rid; }
362: }
363: if (defined($rows[$sofar])) {
364: $rows[$sofar].='&'.$tprefix.$rid;
365: } else {
366: $rows[$sofar]=$tprefix.$rid;
367: }
368: if ((defined($hash{'map_start_'.$hash{'src_'.$rid}})) &&
369: (defined($hash{'map_finish_'.$hash{'src_'.$rid}}))) {
370: my $frid=$hash{'map_finish_'.$hash{'src_'.$rid}};
371: $sofar=&tracetable($sofar,$hash{'map_start_'.$hash{'src_'.$rid}},
372: '&'.$frid.'&',$newshowtypes,$indent,$linkid);
373: &addresource($hash{'src_'.$frid},\$sofar,$frid,$newshowtypes,
374: $indent,$linkid);
375: if ($tprefix =~ /j$/) { $indent--; $linkid=''; }
376: }
377: } else {
378: &addresource($hash{'src_'.$rid},\$sofar,$rid,$showtypes,
379: $indent,$linkid);
380: }
381:
382: if (defined($hash{'to_'.$rid})) {
383: $further=&followlinks($rid,$sofar,$beenhere,$further,$showtypes,
384: $indent,$linkid);
385: }
386:
387: return $further;
388: }
389:
390: # ================================================================ Main Handler
391:
392: sub handler {
393: my $r=shift;
394:
395:
396: # ------------------------------------------- Set document type for header only
397:
398: if ($r->header_only) {
399: if ($ENV{'browser.mathml'}) {
400: $r->content_type('text/xml');
401: } else {
402: $r->content_type('text/html');
403: }
404: $r->send_http_header;
405: return OK;
406: }
407: my $requrl=$r->uri;
408: my $hashtied;
409: # ----------------------------------------------------------------- Tie db file
410: my $fn;
411: if ($ENV{'request.course.fn'}) {
412: $fn=$ENV{'request.course.fn'};
413: if (-e "$fn.db") {
414: if ((tie(%hash,'GDBM_File',"$fn.db",&GDBM_READER,0640)) &&
415: (tie(%parmhash,'GDBM_File',
416: $ENV{'request.course.fn'}.'_parms.db',
417: &GDBM_READER,0640))) {
418: $hashtied=1;
419: }
420: }
421: }
422: if (!$hashtied) {
423: $ENV{'user.error.msg'}="$requrl:bre:0:0:Course not initialized";
424: return HTTP_NOT_ACCEPTABLE;
425: }
426:
427: # ------------------------------------------------------------------- Hash tied
428:
429: if ($ENV{'browser.mathml'}) {
430: $r->content_type('text/xml');
431: } else {
432: $r->content_type('text/html');
433: }
434: &Apache::loncommon::no_cache($r);
435: $r->send_http_header;
436:
437: my $firstres=$hash{'map_start_/res/'.$ENV{'request.course.uri'}};
438: my $lastres=$hash{'map_finish_/res/'.$ENV{'request.course.uri'}};
439: if (!(($firstres) && ($lastres))) {
440: $r->print('<html><body>Coursemap undefined.</body></html>');
441: } else {
442:
443: # ----------------------------------------------------------------- Render page
444: # -------------------------------------------------------------- Set parameters
445:
446:
447: # ---------------------------- initialize coursedata and userdata for this user
448: undef %courseopt;
449: undef %useropt;
450:
451: my $uname=$ENV{'user.name'};
452: my $udom=$ENV{'user.domain'};
453: my $uhome=$ENV{'user.home'};
454: my $cid=$ENV{'request.course.id'};
455: my $chome=$ENV{'course.'.$cid.'.home'};
456: my ($cdom,$cnum)=split(/\_/,$cid);
457:
458: my $userprefix=$uname.'_'.$udom.'_';
459:
460: unless ($uhome eq 'no_host') {
461: # -------------------------------------------------------------- Get coursedata
462: unless ((time-$courserdatas{$cid.'.last_cache'})<240) {
463: my $reply=&Apache::lonnet::reply('dump:'.$cdom.':'.$cnum.
464: ':resourcedata',$chome);
465: if ($reply!~/^error\:/) {
466: $courserdatas{$cid}=$reply;
467: $courserdatas{$cid.'.last_cache'}=time;
468: }
469: }
470: foreach (split(/\&/,$courserdatas{$cid})) {
471: my ($name,$value)=split(/\=/,$_);
472: $courseopt{$userprefix.&Apache::lonnet::unescape($name)}=
473: &Apache::lonnet::unescape($value);
474: }
475: # --------------------------------------------------- Get userdata (if present)
476: unless ((time-$userrdatas{$uname.'___'.$udom.'.last_cache'})<240) {
477: my $reply=&Apache::lonnet::reply('dump:'.$udom.':'.$uname.':resourcedata',$uhome);
478: if ($reply!~/^error\:/) {
479: $userrdatas{$uname.'___'.$udom}=$reply;
480: $userrdatas{$uname.'___'.$udom.'.last_cache'}=time;
481: }
482: }
483: foreach (split(/\&/,$userrdatas{$uname.'___'.$udom})) {
484: my ($name,$value)=split(/\=/,$_);
485: $useropt{$userprefix.&Apache::lonnet::unescape($name)}=
486: &Apache::lonnet::unescape($value);
487: }
488: }
489:
490: @rows=();
491:
492: &tracetable(0,$firstres,'&'.$lastres.'&','',0);
493: if ($hash{'src_'.$lastres}) {
494: my $brepriv=&Apache::lonnet::allowed('bre',$hash{'src_'.$lastres});
495: if (($brepriv eq '2') || ($brepriv eq 'F')) {
496: $rows[$#rows+1]=''.$lastres;
497: }
498: }
499:
500: # ------------------------------------------------------------------ Page parms
501:
502: my $j;
503: my $i;
504: my $lcm=1;
505: my $contents=0;
506:
507: # ---------------------------------------------- Go through table to get layout
508:
509: for ($i=0;$i<=$#rows;$i++) {
510: if ($rows[$i]) {
511: &Apache::lonxml::debug("Row $i is:".$rows[$i]);
512: $contents++;
513: my @colcont=split(/\&/,$rows[$i]);
514: $lcm*=($#colcont+1)/euclid($lcm,($#colcont+1));
515: }
516: }
517:
518:
519: unless ($contents) {
520: $r->print('<html><body>Empty Map.</body></html>');
521: } else {
522:
523: # ------------------------------------------------------------------ Build page
524:
525: my $currenturl=$ENV{'form.postdata'};
526: $currenturl=~s/^http\:\/\///;
527: $currenturl=~s/^[^\/]+//;
528:
529: # ---------------------------------------------------------------- Send headers
530:
531: my $date=localtime;
532: my $now=time;
533: # ----------------------------------------- Get email status and discussiontime
534:
535: my %emailstatus=&Apache::lonnet::dump('email_status');
536: my $logouttime=$emailstatus{'logout'};
537: my $courseleave=$emailstatus{'logout_'.$ENV{'request.course.id'}};
538: my $lastcheck=($courseleave>$logouttime?$courseleave:$logouttime);
539:
540: my %discussiontimes=&Apache::lonnet::dump('discussiontimes',
541: $cdom,$cnum);
542:
543: my %feedback=();
544: my %error=();
545: foreach my $msgid (split(/\&/,&Apache::lonnet::reply('keys:'.
546: $ENV{'user.domain'}.':'.
547: $ENV{'user.name'}.':nohist_email',
548: $ENV{'user.home'}))) {
549: $msgid=&Apache::lonnet::unescape($msgid);
550: my $plain=&Apache::lonnet::unescape(&Apache::lonnet::unescape($msgid));
551: if ($plain=~/(Error|Feedback) \[([^\]]+)\]/) {
552: my ($what,$url)=($1,$2);
553: my %status=
554: &Apache::lonnet::get('email_status',[$msgid]);
555: if ($status{$msgid}=~/^error\:/) {
556: $status{$msgid}='';
557: }
558:
559: if (($status{$msgid} eq 'new') ||
560: (!$status{$msgid})) {
561: if ($what eq 'Error') {
562: $error{$url}.=','.$msgid;
563: } else {
564: $feedback{$url}.=','.$msgid;
565: }
566: }
567: }
568: }
569: # ----------------------------------------------------------- Start Page Output
570: $r->print('<html><head><title>Navigate LON-CAPA Maps</title></head>');
571: $r->print('<body bgcolor="#FFFFFF"');
572: if (($currenturl=~/^\/res/) &&
573: ($currenturl!~/^\/res\/adm/)) {
574: $r->print(' onLoad="window.location.hash='."'curloc'".'"');
575: }
576: $r->print('><script>window.focus();</script>'.
577: '<img align=right src=/adm/lonIcons/lonlogos.gif>'.
578: '<h1>Navigate Course Map</h1>'.
579: "<h3>$date</h3>");
580: $r->rflush();
581: $r->print('<img src="/adm/lonMisc/chat.gif"> New discussion since '.
582: localtime($lastcheck).
583: '<br><img src="/adm/lonMisc/feedback.gif"> New message (click to open)<p>');
584: if (($currenturl=~/^\/res/) &&
585: ($currenturl!~/^\/res\/adm/)) {
586: $r->print('<a href="#curloc">Current Location</a><p>');
587: }
588: # ----------------------------------------------------- The little content list
589: for ($i=0;$i<=$#rows;$i++) {
590: if ($rows[$i]) {
591: my @colcont=split(/\&/,$rows[$i]);
592: my $avespan=$lcm/($#colcont+1);
593: for ($j=0;$j<=$#colcont;$j++) {
594: my $rid=$colcont[$j];
595: if ($rid=~/^h(.+)/) {
596: $rid=$1;
597: $r->print(' <a href="#'.
598: $rid.'">'.$hash{'title_'.$rid}.
599: '</a><br>');
600: }
601: }
602: }
603: }
604: # ----------------------------------------------------------------- Start table
605: $r->print('<hr><table cols="'.$lcm.'" border="0">');
606: for ($i=0;$i<=$#rows;$i++) {
607: if ($rows[$i]) {
608: $r->print("\n<tr>");
609: my @colcont=split(/\&/,$rows[$i]);
610: my $avespan=$lcm/($#colcont+1);
611: for ($j=0;$j<=$#colcont;$j++) {
612: my $indent;my $indentstr;
613: my $linkid;
614: my $rid=$colcont[$j];
615: my $add='<td>';
616: my $adde='</td>';
617: my $hwk='<font color="#223322">';
618: my $hwke='</font>';
619: if ($rid=~/^l(\d+\.\d+),(.+)/) { $linkid=$1; $rid=$2; }
620: if ($rid=~/^i(\d+),(.+)/) { $indent=$1; $rid=$2; }
621: if ($rid=~/^h(.+)/) {
622: $rid=$1;
623: $add='<th bgcolor="#AAFF55"><a name="'.$rid.'">';
624: $adde='</th>';
625: }
626: if ($rid=~/^j(.+)/) { $rid=$1; }
627: if ($rid=~/^p(\d)(\d)\"([\w\: \(\)\/\,]*)\"(.+)/) {
628: # sub astatus describes what code/tcode mean
629: my $code=$1;
630: my $tcode=$2;
631: my $ctext=$3;
632: $rid=$4;
633: if ($tcode eq '1') {
634: $add='<td bgcolor="#AAAAAA">';
635: }
636: if ($code eq '3') {
637: $add='<td bgcolor="#AAFFAA">';
638: } elsif ($code eq '4') {
639: $add='<td bgcolor="#E0FFAA">';
640: } else {
641: $add='<td bgcolor="#FFAAAA">';
642: if ($tcode eq '2') {
643: $add='<td bgcolor="#FFFFAA">';
644: }
645: if ($tcode eq '4') {
646: $add='<td bgcolor="#FFFF33">';
647: $adde='</td>';
648: }
649: }
650: $hwk='<font color="#888811"><b>';
651: $hwke='</b></font>';
652: if ($code eq '1') {
653: $hwke='</b> ('.$ctext.')</font>';
654: }
655: if ($code eq '2' || $code eq '4') {
656: $hwk='<font color="#992222"><b>';
657: $hwke='</b> ('.$ctext.')</font>';
658: }
659: if ($code eq '3') {
660: $hwk='<font color="#229922"><b>';
661: $hwke='</b> ('.$ctext.')</font>';
662: }
663: }
664: if ($rid && $hash{'src_'.$rid} eq $currenturl) {
665: $add=$add.'<a name="curloc"></a>'.
666: '<font color=red size=+2><b>> </b></font>';
667: $adde=
668: '<font color=red size=+2><b> <</b></font>'.$adde;
669: }
670: my $src=
671: &Apache::lonnet::declutter($hash{'src_'.$rid});
672: $rid=~/^(\d+)\.(\d+)$/;
673: my $symb=
674: &Apache::lonnet::declutter($hash{'map_id_'.$1}).'___'.$2.'___'.$src;
675: if ($discussiontimes{$symb}>$lastcheck) {
676: $adde=
677: '<img border=0 src="/adm/lonMisc/chat.gif">'.
678: $adde;
679: }
680: if ($error{$src}) {
681: foreach (split(/\,/,$error{$src})) {
682: if ($_) {
683: $adde=
684: ' <a href="/adm/email?display='.
685: &Apache::lonnet::escape($_).
686: '"><img src="/adm/lonMisc/bomb.gif" border=0></a>'
687: .$adde;
688: }
689: }
690: }
691: if ($feedback{$src}) {
692: foreach (split(/\,/,$feedback{$src})) {
693: if ($_) {
694: $adde=
695: ' <a href="/adm/email?display='.
696: &Apache::lonnet::escape($_).
697: '"><img src="/adm/lonMisc/feedback.gif" border=0></a>'
698: .$adde;
699: }
700: }
701: }
702: if ($indent) {
703: my $is=" ";
704: for(my $i=-1;$i<$indent;$i++) { $indentstr.=$is; }
705: }
706: if (!$linkid) { $linkid=$rid; }
707: $r->print($add.$indentstr);
708: if ($rid) {
709: $r->print('<a href="'.$hash{'src_'.$linkid}.
710: '?symb='.&Apache::lonnet::escape($symb)
711: .'">'.
712: $hwk.$hash{'title_'.$rid}.$hwke.'</a>');
713: }
714: $r->print($adde);
715: }
716: $r->print('</tr>');
717: }
718: }
719: $r->print("\n</table>");
720: $r->print('</body></html>');
721: # -------------------------------------------------------------------- End page
722: }
723: # ------------------------------------------------------------- End render page
724: }
725: # ------------------------------------------------------------------ Untie hash
726: unless (untie(%hash)) {
727: &Apache::lonnet::logthis("<font color=blue>WARNING: ".
728: "Could not untie coursemap $fn (browse).</font>");
729: }
730: unless (untie(%parmhash)) {
731: &Apache::lonnet::logthis("<font color=blue>WARNING: ".
732: "Could not untie parmhash (browse).</font>");
733: }
734: return OK;
735: }
736:
737: 1;
738: __END__
739:
740:
741:
742:
743:
744:
745:
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