Annotation of loncom/interface/lonnavmaps.pm, revision 1.50
1.2 www 1: # The LearningOnline Network with CAPA
2: # Navigate Maps Handler
1.1 www 3: #
1.50 ! www 4: # $Id: lonnavmaps.pm,v 1.49 2002/09/09 16:40:01 www Exp $
1.20 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.
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: #
1.2 www 28: # (Page Handler
1.1 www 29: #
1.2 www 30: # (TeX Content Handler
1.1 www 31: #
1.2 www 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)
1.1 www 35: #
1.17 www 36: # 3/1/1,6/1,17/1,29/1,30/1,2/8,9/21,9/24,9/25 Gerd Kortemeyer
1.21 www 37: # YEAR=2002
38: # 1/1 Gerd Kortemeyer
39: #
1.2 www 40:
1.1 www 41: package Apache::lonnavmaps;
42:
43: use strict;
1.2 www 44: use Apache::Constants qw(:common :http);
45: use Apache::lonnet();
1.18 albertel 46: use Apache::loncommon();
1.2 www 47: use HTML::TokeParser;
48: use GDBM_File;
49:
50: # -------------------------------------------------------------- Module Globals
51: my %hash;
52: my @rows;
53:
1.10 www 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:
1.47 bowersj2 70: # This parameter keeps track of whether obtaining the user's information
71: # failed, which the colorizer in astatus can use
72: my $networkFailedFlag = 0;
73:
1.2 www 74: # ------------------------------------------------------------------ Euclid gcd
75:
76: sub euclid {
77: my ($e,$f)=@_;
78: my $a; my $b; my $r;
79: if ($e>$f) { $b=$e; $r=$f; } else { $r=$e; $b=$f; }
80: while ($r!=0) {
81: $a=$b; $b=$r;
82: $r=$a%$b;
83: }
84: return $b;
85: }
86:
1.10 www 87: # --------------------------------------------------------------------- Parmval
88:
89: # -------------------------------------------- Figure out a cascading parameter
90: #
91: # For this function to work
92: #
93: # * parmhash needs to be tied
94: # * courseopt and useropt need to be initialized for this user and course
95: #
96:
97: sub parmval {
98: my ($what,$symb)=@_;
99: my $cid=$ENV{'request.course.id'};
100: my $csec=$ENV{'request.course.sec'};
101: my $uname=$ENV{'user.name'};
102: my $udom=$ENV{'user.domain'};
103:
104: unless ($symb) { return ''; }
105: my $result='';
106:
107: my ($mapname,$id,$fn)=split(/\_\_\_/,$symb);
108:
109: # ----------------------------------------------------- Cascading lookup scheme
1.24 albertel 110: my $rwhat=$what;
111: $what=~s/^parameter\_//;
112: $what=~s/\_/\./;
113:
114: my $symbparm=$symb.'.'.$what;
115: my $mapparm=$mapname.'___(all).'.$what;
116: my $usercourseprefix=$uname.'_'.$udom.'_'.$cid;
117:
118: my $seclevel= $usercourseprefix.'.['.$csec.'].'.$what;
119: my $seclevelr=$usercourseprefix.'.['.$csec.'].'.$symbparm;
120: my $seclevelm=$usercourseprefix.'.['.$csec.'].'.$mapparm;
121:
122: my $courselevel= $usercourseprefix.'.'.$what;
123: my $courselevelr=$usercourseprefix.'.'.$symbparm;
124: my $courselevelm=$usercourseprefix.'.'.$mapparm;
125:
126: # ---------------------------------------------------------- first, check user
127: if ($uname) {
128: if ($useropt{$courselevelr}) { return $useropt{$courselevelr}; }
129: if ($useropt{$courselevelm}) { return $useropt{$courselevelm}; }
130: if ($useropt{$courselevel}) { return $useropt{$courselevel}; }
131: }
1.10 www 132:
1.24 albertel 133: # ------------------------------------------------------- second, check course
134: if ($csec) {
135: if ($courseopt{$seclevelr}) { return $courseopt{$seclevelr}; }
1.25 albertel 136: if ($courseopt{$seclevelm}) { return $courseopt{$seclevelm}; }
1.10 www 137: if ($courseopt{$seclevel}) { return $courseopt{$seclevel}; }
1.24 albertel 138: }
1.10 www 139:
1.24 albertel 140: if ($courseopt{$courselevelr}) { return $courseopt{$courselevelr}; }
141: if ($courseopt{$courselevelm}) { return $courseopt{$courselevelm}; }
142: if ($courseopt{$courselevel}) { return $courseopt{$courselevel}; }
1.10 www 143:
1.24 albertel 144: # ----------------------------------------------------- third, check map parms
1.10 www 145:
1.24 albertel 146: my $thisparm=$parmhash{$symbparm};
147: if ($thisparm) { return $thisparm; }
1.10 www 148:
1.24 albertel 149: # ----------------------------------------------------- fourth , check default
1.10 www 150:
1.25 albertel 151: my $default=&Apache::lonnet::metadata($fn,$rwhat.'.default');
152: if ($default) { return $default}
153:
154: # --------------------------------------------------- fifth , cascade up parts
155:
156: my ($space,@qualifier)=split(/\./,$rwhat);
157: my $qualifier=join('.',@qualifier);
158: unless ($space eq '0') {
159: my ($part,$id)=split(/\_/,$space);
160: if ($id) {
161: my $partgeneral=&parmval($part.".$qualifier",$symb);
162: if ($partgeneral) { return $partgeneral; }
163: } else {
164: my $resourcegeneral=&parmval("0.$qualifier",$symb);
165: if ($resourcegeneral) { return $resourcegeneral; }
166: }
167: }
168: return '';
1.10 www 169: }
170:
171:
172:
1.9 www 173: # ------------------------------------------------------------- Find out status
1.25 albertel 174: # return codes
175: # tcode (timecode)
176: # 1: will open later
177: # 2: is open and not past due yet
178: # 3: is past due date
179: # 4: due in the next 24 hours
180: #
181: # code (curent solved status)
182: # 1: not attempted
183: # 2: attempted but wrong, or incorrect by instructor
184: # 3: solved or correct by instructor
1.29 albertel 185: # 4: partially correct (one or more parts correct)
186: # "excused" needs to be supported, but is not yet.
1.9 www 187: sub astatus {
188: my $rid=shift;
1.29 albertel 189: my $code=0;
1.9 www 190: my $ctext='';
191: $rid=~/(\d+)\.(\d+)/;
1.10 www 192: my $symb=&Apache::lonnet::declutter($hash{'map_id_'.$1}).'___'.$2.'___'.
1.24 albertel 193: &Apache::lonnet::declutter($hash{'src_'.$rid});
1.15 www 194: my %duedate=();
195: my %opendate=();
196: my %answerdate=();
1.25 albertel 197: # need to always check part 0's open/due/answer status
1.49 www 198: foreach (sort(split(/\,/,&Apache::lonnet::metadata($hash{'src_'.$rid},'allpossiblekeys')))) {
1.15 www 199: if ($_=~/^parameter\_(.*)\_opendate$/) {
200: my $part=$1;
201: $duedate{$part}=&parmval($part.'.duedate',$symb);
202: $opendate{$part}=&parmval($part.'.opendate',$symb);
203: $answerdate{$part}=&parmval($part.'.answerdate',$symb);
1.49 www 204: if (&parmval($part.'.opendate.type',$symb) eq 'date_interval') {
205: $opendate{$part}=$duedate{$part}-$opendate{$part};
206: }
1.50 ! www 207: if (&parmval($part.'.answerdate.type',$symb) eq 'date_interval') {
1.49 www 208: $answerdate{$part}=$duedate{$part}+$answerdate{$part};
209: }
1.15 www 210: }
1.25 albertel 211: }
1.11 www 212: my $now=time;
213: my $tcode=0;
1.16 www 214:
215: my %returnhash=&Apache::lonnet::restore($symb);
216:
1.25 albertel 217: foreach (sort(keys(%opendate))) {
1.24 albertel 218: my $duedate=$duedate{$_};
219: my $opendate=$opendate{$_};
220: my $answerdate=$answerdate{$_};
221: my $preface='';
222: unless ($_ eq '0') { $preface=' Part: '.$_.' '; }
223: if ($opendate) {
1.25 albertel 224: if ($now<$duedate || (!$duedate)) {
225: unless ($tcode==4) { $tcode=2; }
226: if ($duedate) {
227: $ctext.=$preface.'Due: '.localtime($duedate);
228: } else {
229: $ctext.=$preface.'No Due Date';
230: }
231: if ($now<$opendate) {
232: unless ($tcode) { $tcode=1; }
1.24 albertel 233: $ctext.=$preface.'Open: '.localtime($opendate);
234: }
1.25 albertel 235: if ($duedate && $duedate-$now<86400) {
1.24 albertel 236: $tcode=4;
237: $ctext.=$preface.'Due: '.localtime($duedate);
238: }
239: } else {
240: unless (($tcode==4) || ($tcode eq 2)) { $tcode=3; }
1.25 albertel 241: if ($now<$answerdate) {
1.24 albertel 242: $ctext.='Answer: '.localtime($duedate);
243: }
244: }
245: } else {
246: unless (($tcode==2) || ($tcode==4)) { $tcode=1; }
247: }
248:
249: my $status=$returnhash{'resource.'.$_.'.solved'};
1.25 albertel 250:
1.24 albertel 251: if ($status eq 'correct_by_student') {
1.30 albertel 252: if ($code==0||$code==3) { $code=3; } else { $code=4; }
1.24 albertel 253: $ctext.=' solved';
254: } elsif ($status eq 'correct_by_override') {
1.30 albertel 255: if ($code==0||$code==3) { $code=3; } else { $code=4; }
1.24 albertel 256: $ctext.=' override';
257: } elsif ($status eq 'incorrect_attempted') {
1.29 albertel 258: if ($code!=4 && $code!=3) { $code=2; }
259: if ($code==3) { $code=4; }
1.24 albertel 260: $ctext.=' ('.
261: ($returnhash{'resource.'.$_.'.tries'}?
1.25 albertel 262: $returnhash{'resource.'.$_.'.tries'}:'0');
263: my $numtries = &parmval($_.'.maxtries',$symb);
264: if ($numtries) { $ctext.='/'.$numtries.' tries'; }
265: $ctext.=')';
1.24 albertel 266: } elsif ($status eq 'incorrect_by_override') {
1.29 albertel 267: if ($code!=4 && $code!=3) { $code=2; }
268: if ($code==3) { $code=4; }
1.24 albertel 269: $ctext.=' override';
270: } elsif ($status eq 'excused') {
1.30 albertel 271: if ($code==0||$code==3) { $code=3; } else { $code=4; }
1.24 albertel 272: $ctext.=' excused';
1.29 albertel 273: } else {
274: if ($code==0) { $code=1; }
1.24 albertel 275: }
1.25 albertel 276: }
1.16 www 277:
1.11 www 278: return 'p'.$code.$tcode.'"'.$ctext.'"';
1.9 www 279: }
280:
1.2 www 281:
1.31 albertel 282: sub addresource {
1.32 albertel 283: my ($resource,$sofar,$rid,$showtypes,$indent,$linkid)=@_;
1.31 albertel 284: if ($showtypes eq 'problems') {
285: if ($resource!~/\.(problem|exam|quiz|assess|survey|form)$/) {
286: return;
1.32 albertel 287: }
1.31 albertel 288: }
289: my $brepriv=&Apache::lonnet::allowed('bre',$resource);
290: if ($hash{'src_'.$rid}) {
1.37 www 291: if (($brepriv eq '2') || ($brepriv eq 'F')) {
1.31 albertel 292: my $pprefix='';
293: if ($resource=~/\.(problem|exam|quiz|assess|survey|form)$/) {
294: $pprefix=&astatus($rid);
1.28 albertel 295: }
1.32 albertel 296: $$sofar++;
297: if ($indent) { $pprefix='i'.$indent.','.$pprefix; }
298: if ($linkid) { $pprefix='l'.$linkid.','.$pprefix; }
299: if (defined($rows[$$sofar])) {
300: $rows[$$sofar].='&'.$pprefix.$rid;
1.28 albertel 301: } else {
1.32 albertel 302: $rows[$$sofar]=$pprefix.$rid;
1.28 albertel 303: }
1.31 albertel 304: }
305: }
306: }
307:
308: sub followlinks () {
1.32 albertel 309: my ($rid,$sofar,$beenhere,$further,$showtypes,$indent,$linkid)=@_;
1.31 albertel 310: my $mincond=1;
311: my $next='';
312: foreach (split(/\,/,$hash{'to_'.$rid})) {
313: my $thiscond=
314: &Apache::lonnet::directcondval($hash{'condid_'.$hash{'undercond_'.$_}});
315: if ($thiscond>=$mincond) {
316: if ($next) {
317: $next.=','.$_.':'.$thiscond;
318: } else {
319: $next=$_.':'.$thiscond;
1.28 albertel 320: }
1.31 albertel 321: if ($thiscond>$mincond) { $mincond=$thiscond; }
322: }
323: }
1.32 albertel 324: my $col=0;
325: &Apache::lonxml::debug("following links -$next-");
1.31 albertel 326: foreach (split(/\,/,$next)) {
1.32 albertel 327: my ($nextlinkid,$condval)=split(/\:/,$_);
1.31 albertel 328: if ($condval>=$mincond) {
1.32 albertel 329: my $now=&tracetable($sofar,$hash{'goesto_'.$nextlinkid},
330: $beenhere,$showtypes,$indent,$linkid);
331: if ($now>$further) {
332: if ($col>0) {
333: my $string;
334: for(my $i=0;$i<$col;$i++) { $string.='&'; }
335: for(my $i=$further+1;$now-1>$i;$i++) {
336: $rows[$i]=$string.$rows[$i];
337: }
338: }
339: $further=$now;
340: }
1.31 albertel 341: }
1.32 albertel 342: $col++;
1.31 albertel 343: }
344: return $further;
345: }
346: # ------------------------------------------------------------ Build page table
347:
348: sub tracetable {
1.32 albertel 349: my ($sofar,$rid,$beenhere,$showtypes,$indent,$linkid)=@_;
350: my $newshowtypes=$showtypes;
1.31 albertel 351: my $further=$sofar;
1.44 www 352: # $Apache::lonxml::debug=1;
1.32 albertel 353: &Apache::lonxml::debug("$rid ; $linkid ; $sofar ; $beenhere ; ".$hash{'src_'.$rid});
354: if ($beenhere=~/\&$rid\&/) { return $further; }
355: $beenhere.=$rid.'&';
1.31 albertel 356:
357: if (defined($hash{'is_map_'.$rid})) {
358: $sofar++;
359: my $tprefix='';
360: if ($hash{'map_type_'.$hash{'map_pc_'.$hash{'src_'.$rid}}}
361: eq 'sequence') {
362: $tprefix='h';
363: } elsif ($hash{'map_type_'.$hash{'map_pc_'.$hash{'src_'.$rid}}}
364: eq 'page') {
1.32 albertel 365: $tprefix='j';
366: if ($indent) { $tprefix='i'.$indent.','.$tprefix; }
1.33 albertel 367: if ($linkid) { $tprefix='l'.$linkid.','.$tprefix; }
1.32 albertel 368: $newshowtypes='problems';
369: $indent++;
1.33 albertel 370: #if in a .page continue to link the encompising .page
371: if (!$linkid) { $linkid=$rid; }
1.31 albertel 372: }
373: if (defined($rows[$sofar])) {
374: $rows[$sofar].='&'.$tprefix.$rid;
1.28 albertel 375: } else {
1.31 albertel 376: $rows[$sofar]=$tprefix.$rid;
377: }
378: if ((defined($hash{'map_start_'.$hash{'src_'.$rid}})) &&
379: (defined($hash{'map_finish_'.$hash{'src_'.$rid}}))) {
380: my $frid=$hash{'map_finish_'.$hash{'src_'.$rid}};
1.32 albertel 381: $sofar=&tracetable($sofar,$hash{'map_start_'.$hash{'src_'.$rid}},
1.33 albertel 382: '&'.$frid.'&',$newshowtypes,$indent,$linkid);
1.32 albertel 383: &addresource($hash{'src_'.$frid},\$sofar,$frid,$newshowtypes,
1.33 albertel 384: $indent,$linkid);
385: if ($tprefix =~ /j$/) { $indent--; $linkid=''; }
1.28 albertel 386: }
1.31 albertel 387: } else {
1.32 albertel 388: &addresource($hash{'src_'.$rid},\$sofar,$rid,$showtypes,
389: $indent,$linkid);
1.31 albertel 390: }
391:
392: if (defined($hash{'to_'.$rid})) {
1.32 albertel 393: $further=&followlinks($rid,$sofar,$beenhere,$further,$showtypes,
394: $indent,$linkid);
1.2 www 395: }
1.31 albertel 396:
1.2 www 397: return $further;
398: }
399:
400: # ================================================================ Main Handler
1.1 www 401:
402: sub handler {
1.28 albertel 403: my $r=shift;
1.2 www 404:
405:
406: # ------------------------------------------- Set document type for header only
407:
1.28 albertel 408: if ($r->header_only) {
409: if ($ENV{'browser.mathml'}) {
410: $r->content_type('text/xml');
411: } else {
412: $r->content_type('text/html');
413: }
414: $r->send_http_header;
415: return OK;
416: }
417: my $requrl=$r->uri;
418: my $hashtied;
1.2 www 419: # ----------------------------------------------------------------- Tie db file
1.28 albertel 420: my $fn;
421: if ($ENV{'request.course.fn'}) {
422: $fn=$ENV{'request.course.fn'};
423: if (-e "$fn.db") {
1.40 albertel 424: if ((tie(%hash,'GDBM_File',"$fn.db",&GDBM_READER(),0640)) &&
1.28 albertel 425: (tie(%parmhash,'GDBM_File',
426: $ENV{'request.course.fn'}.'_parms.db',
1.40 albertel 427: &GDBM_READER(),0640))) {
1.28 albertel 428: $hashtied=1;
429: }
430: }
431: }
432: if (!$hashtied) {
433: $ENV{'user.error.msg'}="$requrl:bre:0:0:Course not initialized";
434: return HTTP_NOT_ACCEPTABLE;
435: }
436:
1.2 www 437: # ------------------------------------------------------------------- Hash tied
1.28 albertel 438:
439: if ($ENV{'browser.mathml'}) {
440: $r->content_type('text/xml');
441: } else {
442: $r->content_type('text/html');
443: }
444: &Apache::loncommon::no_cache($r);
445: $r->send_http_header;
446:
1.42 www 447: my $firstres=$hash{'map_start_'.
448: &Apache::lonnet::clutter($ENV{'request.course.uri'})};
449: my $lastres=$hash{'map_finish_'.
450: &Apache::lonnet::clutter($ENV{'request.course.uri'})};
1.28 albertel 451: if (!(($firstres) && ($lastres))) {
452: $r->print('<html><body>Coursemap undefined.</body></html>');
453: } else {
454:
1.2 www 455: # ----------------------------------------------------------------- Render page
1.10 www 456: # -------------------------------------------------------------- Set parameters
457:
458:
459: # ---------------------------- initialize coursedata and userdata for this user
1.28 albertel 460: undef %courseopt;
461: undef %useropt;
1.10 www 462:
1.28 albertel 463: my $uname=$ENV{'user.name'};
464: my $udom=$ENV{'user.domain'};
465: my $uhome=$ENV{'user.home'};
466: my $cid=$ENV{'request.course.id'};
467: my $chome=$ENV{'course.'.$cid.'.home'};
468: my ($cdom,$cnum)=split(/\_/,$cid);
1.10 www 469:
1.28 albertel 470: my $userprefix=$uname.'_'.$udom.'_';
1.47 bowersj2 471:
1.28 albertel 472: unless ($uhome eq 'no_host') {
1.48 bowersj2 473: # ------------------------------------------------- Get coursedata (if present)
1.28 albertel 474: unless ((time-$courserdatas{$cid.'.last_cache'})<240) {
475: my $reply=&Apache::lonnet::reply('dump:'.$cdom.':'.$cnum.
476: ':resourcedata',$chome);
477: if ($reply!~/^error\:/) {
478: $courserdatas{$cid}=$reply;
479: $courserdatas{$cid.'.last_cache'}=time;
480: }
1.48 bowersj2 481: # check to see if network failed
482: elsif ( $reply=~/no.such.host/i || $reply=~/con.*lost/i )
1.47 bowersj2 483: {
484: $networkFailedFlag = 1;
485: }
1.28 albertel 486: }
487: foreach (split(/\&/,$courserdatas{$cid})) {
488: my ($name,$value)=split(/\=/,$_);
489: $courseopt{$userprefix.&Apache::lonnet::unescape($name)}=
490: &Apache::lonnet::unescape($value);
491: }
1.10 www 492: # --------------------------------------------------- Get userdata (if present)
1.28 albertel 493: unless ((time-$userrdatas{$uname.'___'.$udom.'.last_cache'})<240) {
494: my $reply=&Apache::lonnet::reply('dump:'.$udom.':'.$uname.':resourcedata',$uhome);
495: if ($reply!~/^error\:/) {
496: $userrdatas{$uname.'___'.$udom}=$reply;
497: $userrdatas{$uname.'___'.$udom.'.last_cache'}=time;
498: }
499: }
500: foreach (split(/\&/,$userrdatas{$uname.'___'.$udom})) {
501: my ($name,$value)=split(/\=/,$_);
502: $useropt{$userprefix.&Apache::lonnet::unescape($name)}=
503: &Apache::lonnet::unescape($value);
504: }
505: }
506:
507: @rows=();
508:
1.44 www 509: &tracetable(0,$firstres,'&','',0);
1.2 www 510:
511: # ------------------------------------------------------------------ Page parms
512:
1.28 albertel 513: my $j;
514: my $i;
515: my $lcm=1;
516: my $contents=0;
1.2 www 517:
518: # ---------------------------------------------- Go through table to get layout
519:
1.28 albertel 520: for ($i=0;$i<=$#rows;$i++) {
521: if ($rows[$i]) {
1.32 albertel 522: &Apache::lonxml::debug("Row $i is:".$rows[$i]);
1.28 albertel 523: $contents++;
524: my @colcont=split(/\&/,$rows[$i]);
525: $lcm*=($#colcont+1)/euclid($lcm,($#colcont+1));
526: }
527: }
1.5 www 528:
1.2 www 529:
1.28 albertel 530: unless ($contents) {
531: $r->print('<html><body>Empty Map.</body></html>');
532: } else {
1.10 www 533:
1.2 www 534: # ------------------------------------------------------------------ Build page
535:
1.28 albertel 536: my $currenturl=$ENV{'form.postdata'};
537: $currenturl=~s/^http\:\/\///;
538: $currenturl=~s/^[^\/]+//;
1.13 www 539:
1.2 www 540: # ---------------------------------------------------------------- Send headers
541:
1.28 albertel 542: my $date=localtime;
543: my $now=time;
1.21 www 544: # ----------------------------------------- Get email status and discussiontime
545:
1.28 albertel 546: my %emailstatus=&Apache::lonnet::dump('email_status');
547: my $logouttime=$emailstatus{'logout'};
548: my $courseleave=$emailstatus{'logout_'.$ENV{'request.course.id'}};
549: my $lastcheck=($courseleave>$logouttime?$courseleave:$logouttime);
550:
551: my %discussiontimes=&Apache::lonnet::dump('discussiontimes',
552: $cdom,$cnum);
553:
554: my %feedback=();
555: my %error=();
556: foreach my $msgid (split(/\&/,&Apache::lonnet::reply('keys:'.
557: $ENV{'user.domain'}.':'.
558: $ENV{'user.name'}.':nohist_email',
559: $ENV{'user.home'}))) {
560: $msgid=&Apache::lonnet::unescape($msgid);
561: my $plain=&Apache::lonnet::unescape(&Apache::lonnet::unescape($msgid));
562: if ($plain=~/(Error|Feedback) \[([^\]]+)\]/) {
563: my ($what,$url)=($1,$2);
564: my %status=
565: &Apache::lonnet::get('email_status',[$msgid]);
566: if ($status{$msgid}=~/^error\:/) {
567: $status{$msgid}='';
568: }
569:
570: if (($status{$msgid} eq 'new') ||
571: (!$status{$msgid})) {
572: if ($what eq 'Error') {
573: $error{$url}.=','.$msgid;
574: } else {
575: $feedback{$url}.=','.$msgid;
576: }
577: }
578: }
579: }
1.22 www 580: # ----------------------------------------------------------- Start Page Output
1.43 www 581: my $bodytagadd='';
582: $r->print(
583: '<html><head><title>Navigate Course Map</title></head>');
1.28 albertel 584: if (($currenturl=~/^\/res/) &&
585: ($currenturl!~/^\/res\/adm/)) {
1.43 www 586: $bodytagadd='onLoad="window.location.hash='."'curloc'".'"';
1.28 albertel 587: }
1.43 www 588: $r->print(&Apache::loncommon::bodytag('Navigate Course Map','',
589: $bodytagadd));
590: $r->print('<script>window.focus();</script>');
1.41 albertel 591: my $desc=$ENV{'course.'.$ENV{'request.course.id'}.'.description'};
592: if (defined($desc)) { $r->print("<h2>$desc</h2>\n"); }
593: $r->print("<h3>$date</h3>\n");
1.28 albertel 594: $r->rflush();
595: $r->print('<img src="/adm/lonMisc/chat.gif"> New discussion since '.
596: localtime($lastcheck).
597: '<br><img src="/adm/lonMisc/feedback.gif"> New message (click to open)<p>');
598: if (($currenturl=~/^\/res/) &&
599: ($currenturl!~/^\/res\/adm/)) {
600: $r->print('<a href="#curloc">Current Location</a><p>');
601: }
1.47 bowersj2 602:
603: # Handle a network error
604:
605: if ($networkFailedFlag)
606: {
607: $r->print('<H2>LON-CAPA network failure.</H2>'."\n");
608: $r->print("<p>LON-CAPA's network is having difficulties, some problem" .
609: " information, such as due dates, will not be available.");
610: }
1.13 www 611: # ----------------------------------------------------- The little content list
1.28 albertel 612: for ($i=0;$i<=$#rows;$i++) {
613: if ($rows[$i]) {
614: my @colcont=split(/\&/,$rows[$i]);
615: my $avespan=$lcm/($#colcont+1);
616: for ($j=0;$j<=$#colcont;$j++) {
617: my $rid=$colcont[$j];
618: if ($rid=~/^h(.+)/) {
619: $rid=$1;
620: $r->print(' <a href="#'.
621: $rid.'">'.$hash{'title_'.$rid}.
622: '</a><br>');
623: }
624: }
625: }
626: }
1.2 www 627: # ----------------------------------------------------------------- Start table
1.28 albertel 628: $r->print('<hr><table cols="'.$lcm.'" border="0">');
629: for ($i=0;$i<=$#rows;$i++) {
630: if ($rows[$i]) {
631: $r->print("\n<tr>");
632: my @colcont=split(/\&/,$rows[$i]);
633: my $avespan=$lcm/($#colcont+1);
1.45 bowersj2 634:
635: # for each item I wish to print on this row...
1.28 albertel 636: for ($j=0;$j<=$#colcont;$j++) {
1.32 albertel 637: my $indent;my $indentstr;
638: my $linkid;
1.28 albertel 639: my $rid=$colcont[$j];
1.36 www 640: $rid=~/(\d+)\.(\d+)$/;
641: my $src=
642: &Apache::lonnet::declutter($hash{'src_'.$1.'.'.$2});
643: my $symb=
644: &Apache::lonnet::declutter($hash{'map_id_'.$1}).'___'.$2.'___'.$src;
1.32 albertel 645: my $add='<td>';
1.28 albertel 646: my $adde='</td>';
647: my $hwk='<font color="#223322">';
648: my $hwke='</font>';
1.32 albertel 649: if ($rid=~/^l(\d+\.\d+),(.+)/) { $linkid=$1; $rid=$2; }
650: if ($rid=~/^i(\d+),(.+)/) { $indent=$1; $rid=$2; }
1.28 albertel 651: if ($rid=~/^h(.+)/) {
652: $rid=$1;
653: $add='<th bgcolor="#AAFF55"><a name="'.$rid.'">';
654: $adde='</th>';
1.36 www 655: if (($ENV{'user.adv'}) &&
656: ($parmhash{$symb.'.0.parameter_randompick'})) {
657: $adde=' (randomly select '.
658: $parmhash{$symb.'.0.parameter_randompick'}.
659: ')</th>';
660: }
1.28 albertel 661: }
1.32 albertel 662: if ($rid=~/^j(.+)/) { $rid=$1; }
1.28 albertel 663: if ($rid=~/^p(\d)(\d)\"([\w\: \(\)\/\,]*)\"(.+)/) {
664: # sub astatus describes what code/tcode mean
665: my $code=$1;
666: my $tcode=$2;
667: my $ctext=$3;
668: $rid=$4;
1.47 bowersj2 669:
670: # will open later
671: if ($tcode eq '1') {
1.28 albertel 672: $add='<td bgcolor="#AAAAAA">';
673: }
1.47 bowersj2 674:
675: # solved/correct
1.28 albertel 676: if ($code eq '3') {
677: $add='<td bgcolor="#AAFFAA">';
1.47 bowersj2 678: } elsif ($code eq '4') { # partially correct
1.30 albertel 679: $add='<td bgcolor="#E0FFAA">';
1.28 albertel 680: } else {
1.47 bowersj2 681: # not attempted
682:
683: # we end up here on network failure, so pick a neutral
684: # color if the network failed instead of bright red.
685: if ( $networkFailedFlag )
686: {
687: $add = '<td bgcolor="#AAAAAA">';
688: }
689: else
690: {
691: $add='<td bgcolor="#FFAAAA">';
692: }
693:
694: if ($tcode eq '2') { # open, not past due
1.28 albertel 695: $add='<td bgcolor="#FFFFAA">';
696: }
1.47 bowersj2 697:
698: if ($tcode eq '4') { # due in next 24 hours
1.28 albertel 699: $add='<td bgcolor="#FFFF33">';
700: $adde='</td>';
701: }
702: }
703: $hwk='<font color="#888811"><b>';
704: $hwke='</b></font>';
705: if ($code eq '1') {
706: $hwke='</b> ('.$ctext.')</font>';
707: }
1.30 albertel 708: if ($code eq '2' || $code eq '4') {
1.28 albertel 709: $hwk='<font color="#992222"><b>';
710: $hwke='</b> ('.$ctext.')</font>';
711: }
712: if ($code eq '3') {
713: $hwk='<font color="#229922"><b>';
714: $hwke='</b> ('.$ctext.')</font>';
1.47 bowersj2 715: }
716: if ($networkFailedFlag)
717: {
718: $hwke='</b> (status unavailable)</font>';
1.28 albertel 719: }
720: }
1.33 albertel 721: if ($rid && $hash{'src_'.$rid} eq $currenturl) {
1.28 albertel 722: $add=$add.'<a name="curloc"></a>'.
723: '<font color=red size=+2><b>> </b></font>';
724: $adde=
725: '<font color=red size=+2><b> <</b></font>'.$adde;
726: }
727: if ($discussiontimes{$symb}>$lastcheck) {
728: $adde=
729: '<img border=0 src="/adm/lonMisc/chat.gif">'.
730: $adde;
731: }
732: if ($error{$src}) {
733: foreach (split(/\,/,$error{$src})) {
734: if ($_) {
735: $adde=
736: ' <a href="/adm/email?display='.
737: &Apache::lonnet::escape($_).
738: '"><img src="/adm/lonMisc/bomb.gif" border=0></a>'
739: .$adde;
740: }
741: }
742: }
743: if ($feedback{$src}) {
744: foreach (split(/\,/,$feedback{$src})) {
745: if ($_) {
746: $adde=
747: ' <a href="/adm/email?display='.
748: &Apache::lonnet::escape($_).
749: '"><img src="/adm/lonMisc/feedback.gif" border=0></a>'
750: .$adde;
751: }
752: }
753: }
1.32 albertel 754: if ($indent) {
755: my $is=" ";
756: for(my $i=-1;$i<$indent;$i++) { $indentstr.=$is; }
757: }
758: if (!$linkid) { $linkid=$rid; }
1.38 www 759: if ($hash{'randomout_'.$rid}) {
760: $adde=' <i>(hidden)</i>'.$adde;
761: }
1.33 albertel 762: $r->print($add.$indentstr);
763: if ($rid) {
1.34 www 764: $r->print('<a href="'.$hash{'src_'.$linkid}.
1.39 www 765: (($hash{'src_'.$linkid}=~/\?/)?'&':'?').
766: 'symb='.&Apache::lonnet::escape($symb)
1.35 www 767: .'">'.
1.33 albertel 768: $hwk.$hash{'title_'.$rid}.$hwke.'</a>');
769: }
770: $r->print($adde);
1.28 albertel 771: }
772: $r->print('</tr>');
773: }
774: }
775: $r->print("\n</table>");
776: $r->print('</body></html>');
1.2 www 777: # -------------------------------------------------------------------- End page
1.28 albertel 778: }
1.2 www 779: # ------------------------------------------------------------- End render page
1.28 albertel 780: }
1.2 www 781: # ------------------------------------------------------------------ Untie hash
1.28 albertel 782: unless (untie(%hash)) {
783: &Apache::lonnet::logthis("<font color=blue>WARNING: ".
784: "Could not untie coursemap $fn (browse).</font>");
785: }
786: unless (untie(%parmhash)) {
787: &Apache::lonnet::logthis("<font color=blue>WARNING: ".
788: "Could not untie parmhash (browse).</font>");
789: }
790: return OK;
1.2 www 791: }
1.1 www 792:
793: 1;
794: __END__
1.2 www 795:
796:
797:
798:
799:
800:
801:
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