Annotation of loncom/interface/lonnavmaps.pm, revision 1.15
1.2 www 1: # The LearningOnline Network with CAPA
2: # Navigate Maps Handler
1.1 www 3: #
1.2 www 4: # (Page Handler
1.1 www 5: #
1.2 www 6: # (TeX Content Handler
1.1 www 7: #
1.2 www 8: # 05/29/00,05/30 Gerd Kortemeyer)
9: # 08/30,08/31,09/06,09/14,09/15,09/16,09/19,09/20,09/21,09/23,
10: # 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 11: #
1.15 ! www 12: # 3/1/1,6/1,17/1,29/1,30/1,2/8,9/21 Gerd Kortemeyer
1.2 www 13:
1.1 www 14: package Apache::lonnavmaps;
15:
16: use strict;
1.2 www 17: use Apache::Constants qw(:common :http);
18: use Apache::lonnet();
19: use HTML::TokeParser;
20: use GDBM_File;
21:
22: # -------------------------------------------------------------- Module Globals
23: my %hash;
24: my @rows;
25:
1.10 www 26: #
27: # These cache hashes need to be independent of user, resource and course
28: # (user and course can/should be in the keys)
29: #
30:
31: my %courserdatas;
32: my %userrdatas;
33:
34: #
35: # These global hashes are dependent on user, course and resource,
36: # and need to be initialized every time when a sheet is calculated
37: #
38: my %courseopt;
39: my %useropt;
40: my %parmhash;
41:
42:
1.2 www 43: # ------------------------------------------------------------------ Euclid gcd
44:
45: sub euclid {
46: my ($e,$f)=@_;
47: my $a; my $b; my $r;
48: if ($e>$f) { $b=$e; $r=$f; } else { $r=$e; $b=$f; }
49: while ($r!=0) {
50: $a=$b; $b=$r;
51: $r=$a%$b;
52: }
53: return $b;
54: }
55:
1.10 www 56: # --------------------------------------------------------------------- Parmval
57:
58: # -------------------------------------------- Figure out a cascading parameter
59: #
60: # For this function to work
61: #
62: # * parmhash needs to be tied
63: # * courseopt and useropt need to be initialized for this user and course
64: #
65:
66: sub parmval {
67: my ($what,$symb)=@_;
68: my $cid=$ENV{'request.course.id'};
69: my $csec=$ENV{'request.course.sec'};
70: my $uname=$ENV{'user.name'};
71: my $udom=$ENV{'user.domain'};
72:
73: unless ($symb) { return ''; }
74: my $result='';
75:
76: my ($mapname,$id,$fn)=split(/\_\_\_/,$symb);
77:
78: # ----------------------------------------------------- Cascading lookup scheme
79: my $rwhat=$what;
80: $what=~s/^parameter\_//;
81: $what=~s/\_/\./;
82:
83: my $symbparm=$symb.'.'.$what;
84: my $mapparm=$mapname.'___(all).'.$what;
85: my $usercourseprefix=$uname.'_'.$udom.'_'.$cid;
86:
87: my $seclevel=
88: $usercourseprefix.'.['.
89: $csec.'].'.$what;
90: my $seclevelr=
91: $usercourseprefix.'.['.
92: $csec.'].'.$symbparm;
93: my $seclevelm=
94: $usercourseprefix.'.['.
95: $csec.'].'.$mapparm;
96:
97: my $courselevel=
98: $usercourseprefix.'.'.$what;
99: my $courselevelr=
100: $usercourseprefix.'.'.$symbparm;
101: my $courselevelm=
102: $usercourseprefix.'.'.$mapparm;
103:
104: # ---------------------------------------------------------- fourth, check user
105:
106: if ($uname) {
107:
108: if ($useropt{$courselevelr}) { return $useropt{$courselevelr}; }
109:
110: if ($useropt{$courselevelm}) { return $useropt{$courselevelm}; }
111:
112: if ($useropt{$courselevel}) { return $useropt{$courselevel}; }
113:
114: }
115:
116: # --------------------------------------------------------- third, check course
117:
118: if ($csec) {
119:
120: if ($courseopt{$seclevelr}) { return $courseopt{$seclevelr}; }
121:
122: if ($courseopt{$seclevelm}) { return $courseopt{$seclevelm}; }
123:
124: if ($courseopt{$seclevel}) { return $courseopt{$seclevel}; }
125:
126: }
127:
128: if ($courseopt{$courselevelr}) { return $courseopt{$courselevelr}; }
129:
130: if ($courseopt{$courselevelm}) { return $courseopt{$courselevelm}; }
131:
132: if ($courseopt{$courselevel}) { return $courseopt{$courselevel}; }
133:
134: # ----------------------------------------------------- second, check map parms
135:
136: my $thisparm=$parmhash{$symbparm};
137: if ($thisparm) { return $thisparm; }
138:
139: # -------------------------------------------------------- first, check default
140:
141: return &Apache::lonnet::metadata($fn,$rwhat.'.default');
142:
143: }
144:
145:
146:
1.9 www 147: # ------------------------------------------------------------- Find out status
148:
149: sub astatus {
150: my $rid=shift;
151: my $code=1;
152: my $ctext='';
153: $rid=~/(\d+)\.(\d+)/;
1.10 www 154: my $symb=&Apache::lonnet::declutter($hash{'map_id_'.$1}).'___'.$2.'___'.
155: &Apache::lonnet::declutter($hash{'src_'.$rid});
1.15 ! www 156:
! 157: my %duedate=();
! 158: my %opendate=();
! 159: my %answerdate=();
! 160: map {
! 161: if ($_=~/^parameter\_(.*)\_opendate$/) {
! 162: my $part=$1;
! 163: $duedate{$part}=&parmval($part.'.duedate',$symb);
! 164: $opendate{$part}=&parmval($part.'.opendate',$symb);
! 165: $answerdate{$part}=&parmval($part.'.answerdate',$symb);
! 166: }
! 167: } sort split(/\,/,&Apache::lonnet::metadata($hash{'src_'.$rid},'keys'));
! 168:
1.10 www 169: my $duedate=&parmval('0.duedate',$symb);
1.11 www 170: my $opendate=&parmval('0.opendate',$symb);
171: my $answerdate=&parmval('0.answerdate',$symb);
172: my $now=time;
173: my $tcode=0;
1.12 www 174: if ($opendate) {
1.11 www 175: if ($now<$duedate) {
176: $tcode=2;
177: $ctext='Due: '.localtime($duedate);
178: if ($now<$opendate) {
179: $tcode=1;
180: $ctext='Open: '.localtime($opendate);
181: }
182: if ($duedate-$now<86400) {
183: $tcode=4;
184: $ctext='Due: '.localtime($duedate);
185: }
186: } else {
187: $tcode=3;
188: if ($now<$answerdate) {
189: $ctext='Answer: '.localtime($duedate);
190: }
1.10 www 191: }
1.12 www 192: } else {
193: $tcode=1;
194: }
1.9 www 195: my $answer=&Apache::lonnet::reply(
196: "restore:$ENV{'user.domain'}:$ENV{'user.name'}:".
1.10 www 197: $ENV{'request.course.id'}.':'.
198: &Apache::lonnet::escape($symb),
1.9 www 199: "$ENV{'user.home'}");
200: my %returnhash=();
201: map {
202: my ($name,$value)=split(/\=/,$_);
203: $returnhash{&Apache::lonnet::unescape($name)}=
204: &Apache::lonnet::unescape($value);
205: } split(/\&/,$answer);
206: if ($returnhash{'version'}) {
207: my $version;
208: for ($version=1;$version<=$returnhash{'version'};$version++) {
209: map {
210: $returnhash{$_}=$returnhash{$version.':'.$_};
211: } split(/\:/,$returnhash{$version.':keys'});
212: }
213: map {
214: if (($_=~/\.(\w+)\.solved$/) && ($_!~/^\d+\:/)) {
215: my $part=$1;
1.10 www 216: if ($ctext) { $ctext.=', '; }
217: if ($part) {
218: $ctext.='Part '.$part.': ';
219: }
1.9 www 220: if ($returnhash{$_} eq 'correct_by_student') {
221: unless ($code==2) { $code=3; }
1.10 www 222: $ctext.='solved';
1.9 www 223: } elsif ($returnhash{$_} eq 'correct_by_override') {
224: unless ($code==2) { $code=3; }
1.10 www 225: $ctext.='override';
1.9 www 226: } elsif ($returnhash{$_} eq 'incorrect_attempted') {
227: $code=2;
1.10 www 228: $ctext.=
1.11 www 229: $returnhash{'resource.'.$part.'.tries'}.'/'.
230: &parmval($part.'.maxtries',$symb).' tries';
1.9 www 231: } elsif ($returnhash{$_} eq 'incorrect_by_override') {
232: $code=2;
1.10 www 233: $ctext.='override';
1.9 www 234: } elsif ($returnhash{$_} eq 'excused') {
235: unless ($code==2) { $code=3; }
1.10 www 236: $ctext.='excused';
1.9 www 237: }
238: }
239: } keys %returnhash;
240: }
1.11 www 241: return 'p'.$code.$tcode.'"'.$ctext.'"';
1.9 www 242: }
243:
1.2 www 244: # ------------------------------------------------------------ Build page table
245:
246: sub tracetable {
247: my ($sofar,$rid,$beenhere)=@_;
248: my $further=$sofar;
249: unless ($beenhere=~/\&$rid\&/) {
250: $beenhere.=$rid.'&';
251:
252: if (defined($hash{'is_map_'.$rid})) {
1.7 www 253: $sofar++;
254: my $tprefix='';
255: if ($hash{'map_type_'.$hash{'map_pc_'.$hash{'src_'.$rid}}}
256: eq 'sequence') {
257: $tprefix='h';
258: }
1.6 www 259: if (defined($rows[$sofar])) {
1.7 www 260: $rows[$sofar].='&'.$tprefix.$rid;
1.6 www 261: } else {
1.7 www 262: $rows[$sofar]=$tprefix.$rid;
1.6 www 263: }
1.2 www 264: if ((defined($hash{'map_start_'.$hash{'src_'.$rid}})) &&
1.7 www 265: (defined($hash{'map_finish_'.$hash{'src_'.$rid}})) &&
266: ($tprefix eq 'h')) {
1.2 www 267: my $frid=$hash{'map_finish_'.$hash{'src_'.$rid}};
268: $sofar=
269: &tracetable($sofar,$hash{'map_start_'.$hash{'src_'.$rid}},
270: '&'.$frid.'&');
271: $sofar++;
272: if ($hash{'src_'.$frid}) {
273: my $brepriv=&Apache::lonnet::allowed('bre',$hash{'src_'.$frid});
274: if (($brepriv eq '2') || ($brepriv eq 'F')) {
1.7 www 275: my $pprefix='';
1.9 www 276: if ($hash{'src_'.$frid}=~
277: /\.(problem|exam|quiz|assess|survey|form)$/) {
278: $pprefix=&astatus($frid);
279:
1.7 www 280: }
1.2 www 281: if (defined($rows[$sofar])) {
1.7 www 282: $rows[$sofar].='&'.$pprefix.$frid;
1.2 www 283: } else {
1.7 www 284: $rows[$sofar]=$pprefix.$frid;
1.2 www 285: }
286: }
287: }
288: }
289: } else {
290: $sofar++;
291: if ($hash{'src_'.$rid}) {
292: my $brepriv=&Apache::lonnet::allowed('bre',$hash{'src_'.$rid});
293: if (($brepriv eq '2') || ($brepriv eq 'F')) {
1.7 www 294: my $pprefix='';
1.9 www 295: if ($hash{'src_'.$rid}=~
296: /\.(problem|exam|quiz|assess|survey|form)$/) {
297: $pprefix=&astatus($rid);
1.7 www 298: }
1.2 www 299: if (defined($rows[$sofar])) {
1.7 www 300: $rows[$sofar].='&'.$pprefix.$rid;
1.2 www 301: } else {
1.7 www 302: $rows[$sofar]=$pprefix.$rid;
1.2 www 303: }
304: }
305: }
306: }
307:
308: if (defined($hash{'to_'.$rid})) {
309: my $mincond=1;
310: my $next='';
311: map {
312: my $thiscond=
313: &Apache::lonnet::directcondval($hash{'condid_'.$hash{'undercond_'.$_}});
314: if ($thiscond>=$mincond) {
315: if ($next) {
316: $next.=','.$_.':'.$thiscond;
317: } else {
318: $next=$_.':'.$thiscond;
319: }
320: if ($thiscond>$mincond) { $mincond=$thiscond; }
321: }
322: } split(/\,/,$hash{'to_'.$rid});
323: map {
324: my ($linkid,$condval)=split(/\:/,$_);
325: if ($condval>=$mincond) {
326: my $now=&tracetable($sofar,$hash{'goesto_'.$linkid},$beenhere);
327: if ($now>$further) { $further=$now; }
328: }
329: } split(/\,/,$next);
330:
331: }
332: }
333: return $further;
334: }
335:
336: # ================================================================ Main Handler
1.1 www 337:
338: sub handler {
1.2 www 339: my $r=shift;
340:
341:
342: # ------------------------------------------- Set document type for header only
343:
344: if ($r->header_only) {
345: if ($ENV{'browser.mathml'}) {
346: $r->content_type('text/xml');
347: } else {
348: $r->content_type('text/html');
349: }
350: $r->send_http_header;
351: return OK;
352: }
353:
354: my $requrl=$r->uri;
355: # ----------------------------------------------------------------- Tie db file
356: if ($ENV{'request.course.fn'}) {
357: my $fn=$ENV{'request.course.fn'};
358: if (-e "$fn.db") {
1.10 www 359: if ((tie(%hash,'GDBM_File',"$fn.db",&GDBM_READER,0640)) &&
360: (tie(%parmhash,'GDBM_File',
361: $ENV{'request.course.fn'}.'_parms.db',&GDBM_READER,0640))) {
1.2 www 362: # ------------------------------------------------------------------- Hash tied
363: my $firstres=$hash{'map_start_/res/'.$ENV{'request.course.uri'}};
364: my $lastres=$hash{'map_finish_/res/'.$ENV{'request.course.uri'}};
365: if (($firstres) && ($lastres)) {
366: # ----------------------------------------------------------------- Render page
1.10 www 367: # -------------------------------------------------------------- Set parameters
368:
369:
370: # ---------------------------- initialize coursedata and userdata for this user
371: undef %courseopt;
372: undef %useropt;
373:
374: my $uname=$ENV{'user.name'};
375: my $udom=$ENV{'user.domain'};
376: my $uhome=$ENV{'user.home'};
377: my $cid=$ENV{'request.course.id'};
378: my $chome=$ENV{'course.'.$cid.'.home'};
379: my ($cdom,$cnum)=split(/\_/,$cid);
380:
381: my $userprefix=$uname.'_'.$udom.'_';
382:
383: unless ($uhome eq 'no_host') {
384: # -------------------------------------------------------------- Get coursedata
385: unless
386: ((time-$courserdatas{$cid.'.last_cache'})<240) {
387: my $reply=&Apache::lonnet::reply('dump:'.$cdom.':'.$cnum.
388: ':resourcedata',$chome);
389: if ($reply!~/^error\:/) {
390: $courserdatas{$cid}=$reply;
391: $courserdatas{$cid.'.last_cache'}=time;
392: }
393: }
394: map {
395: my ($name,$value)=split(/\=/,$_);
396: $courseopt{$userprefix.&Apache::lonnet::unescape($name)}=
397: &Apache::lonnet::unescape($value);
398: } split(/\&/,$courserdatas{$cid});
399: # --------------------------------------------------- Get userdata (if present)
400: unless
401: ((time-$userrdatas{$uname.'___'.$udom.'.last_cache'})<240) {
402: my $reply=
403: &Apache::lonnet::reply('dump:'.$udom.':'.$uname.':resourcedata',$uhome);
404: if ($reply!~/^error\:/) {
405: $userrdatas{$uname.'___'.$udom}=$reply;
406: $userrdatas{$uname.'___'.$udom.'.last_cache'}=time;
407: }
408: }
409: map {
410: my ($name,$value)=split(/\=/,$_);
411: $useropt{$userprefix.&Apache::lonnet::unescape($name)}=
412: &Apache::lonnet::unescape($value);
413: } split(/\&/,$userrdatas{$uname.'___'.$udom});
414: }
1.2 www 415:
416: @rows=();
417:
418: &tracetable(0,$firstres,'&'.$lastres.'&');
419: if ($hash{'src_'.$lastres}) {
420: my $brepriv=
421: &Apache::lonnet::allowed('bre',$hash{'src_'.$lastres});
422: if (($brepriv eq '2') || ($brepriv eq 'F')) {
423: $rows[$#rows+1]=''.$lastres;
424: }
425: }
426:
427: # ------------------------------------------------------------------ Page parms
428:
429: my $j;
1.5 www 430: my $i;
1.2 www 431: my $lcm=1;
432: my $contents=0;
433:
434: # ---------------------------------------------- Go through table to get layout
435:
436: for ($i=0;$i<=$#rows;$i++) {
437: if ($rows[$i]) {
438: $contents++;
439: my @colcont=split(/\&/,$rows[$i]);
440: $lcm*=($#colcont+1)/euclid($lcm,($#colcont+1));
441: }
442: }
1.5 www 443:
1.2 www 444:
445: unless ($contents) {
446: $r->content_type('text/html');
447: $r->send_http_header;
448: $r->print('<html><body>Empty Map.</body></html>');
449: } else {
1.10 www 450:
1.2 www 451: # ------------------------------------------------------------------ Build page
452:
1.13 www 453: my $currenturl=$ENV{'form.postdata'};
454: $currenturl=~s/^http\:\/\///;
455: $currenturl=~s/^[^\/]+//;
456:
1.2 www 457: # ---------------------------------------------------------------- Send headers
458:
459: $r->content_type('text/html');
460: $r->send_http_header;
461: $r->print(
462: '<html><head><title>Navigate LON-CAPA Maps</title></head>');
463:
1.13 www 464: $r->print('<body bgcolor="#FFFFFF"');
1.14 www 465: if (($currenturl=~/^\/res/) &&
466: ($currenturl!~/^\/res\/adm/)) {
1.13 www 467: $r->print(' onLoad="window.location.hash='.
468: "'curloc'".'"');
469: }
470: $r->print('><script>window.focus();</script>'.
1.6 www 471: '<img align=right src=/adm/lonIcons/lonlogos.gif>'.
1.2 www 472: '<h1>Navigate Course Map</h1>');
1.13 www 473: $r->rflush();
1.14 www 474: if (($currenturl=~/^\/res/) &&
475: ($currenturl!~/^\/res\/adm/)) {
1.13 www 476: $r->print('<a href="#curloc">Current Location</a><p>');
477: }
478: # ----------------------------------------------------- The little content list
479: for ($i=0;$i<=$#rows;$i++) {
480: if ($rows[$i]) {
481: my @colcont=split(/\&/,$rows[$i]);
482: my $avespan=$lcm/($#colcont+1);
483: for ($j=0;$j<=$#colcont;$j++) {
484: my $rid=$colcont[$j];
485: if ($rid=~/^h(.+)/) {
486: $rid=$1;
487: $r->print(
488: ' <a href="#'.$rid.'">'.$hash{'title_'.$rid}.'</a><br>');
489: }
490: }
491: }
492: }
1.2 www 493: # ----------------------------------------------------------------- Start table
1.14 www 494: $r->print('<hr><table cols="'.$lcm.'" border="0">');
1.2 www 495: for ($i=0;$i<=$#rows;$i++) {
496: if ($rows[$i]) {
497: $r->print("\n<tr>");
498: my @colcont=split(/\&/,$rows[$i]);
499: my $avespan=$lcm/($#colcont+1);
500: for ($j=0;$j<=$#colcont;$j++) {
501: my $rid=$colcont[$j];
1.6 www 502: my $add='<td> ';
1.7 www 503: my $adde='</td>';
504: my $hwk='<font color="#223322">';
505: my $hwke='</font>';
1.6 www 506: if ($rid=~/^h(.+)/) {
507: $rid=$1;
1.13 www 508: $add=
509: '<th bgcolor="#AAFF55"><a name="'.$rid.'">';
1.7 www 510: $adde='</th>';
511: }
1.11 www 512: if ($rid=~/^p(\d)(\d)\"([\w\: \(\)\/\,]*)\"(.+)/) {
1.7 www 513: my $code=$1;
1.11 www 514: my $tcode=$2;
515: my $ctext=$3;
516: $rid=$4;
517: if ($tcode eq '1') {
518: $add='<td bgcolor="#AAAAAA">';
519: }
520: if ($code eq '3') {
521: $add='<td bgcolor="#AAFFAA">';
522: } else {
523: $add='<td bgcolor="#FFAAAA">';
524: if ($tcode eq '2') {
525: $add='<td bgcolor="#FFFFAA">';
526: }
527: if ($tcode eq '4') {
528: $add='<td bgcolor="#FFFF33"><blink>';
529: $adde='</blink></td>';
530: }
531: }
1.9 www 532: $hwk='<font color="#888811"><b>';
533: $hwke='</b></font>';
1.10 www 534: if ($code eq '1') {
535: $hwke='</b> ('.$ctext.')</font>';
536: }
1.7 www 537: if ($code eq '2') {
1.9 www 538: $hwk='<font color="#992222"><b>';
539: $hwke='</b> ('.$ctext.')</font>';
1.7 www 540: }
541: if ($code eq '3') {
1.9 www 542: $hwk='<font color="#229922"><b>';
543: $hwke='</b> ('.$ctext.')</font>';
1.7 www 544: }
1.6 www 545: }
1.13 www 546: if ($hash{'src_'.$rid} eq $currenturl) {
547: $add=$add.'<a name="curloc"></a>'.
548: '<font color=red><b>-> </b></font>';
549: $adde=
550: '<font color=red><b> <-</b></font>'.$adde;
551: }
1.7 www 552: $r->print($add.'<a href="'.$hash{'src_'.$rid}.
553: '">'.$hwk.
554: $hash{'title_'.$rid}.$hwke.'</a>'.$adde);
1.2 www 555: }
556: $r->print('</tr>');
557: }
558: }
559: $r->print("\n</table>");
560: $r->print('</body></html>');
561: # -------------------------------------------------------------------- End page
562: }
563: # ------------------------------------------------------------- End render page
564: } else {
565: $r->content_type('text/html');
566: $r->send_http_header;
567: $r->print('<html><body>Coursemap undefined.</body></html>');
568: }
569: # ------------------------------------------------------------------ Untie hash
570: unless (untie(%hash)) {
571: &Apache::lonnet::logthis("<font color=blue>WARNING: ".
572: "Could not untie coursemap $fn (browse).</font>");
1.10 www 573: }
574: unless (untie(%parmhash)) {
575: &Apache::lonnet::logthis("<font color=blue>WARNING: ".
576: "Could not untie parmhash (browse).</font>");
1.2 www 577: }
578: # -------------------------------------------------------------------- All done
579: return OK;
580: # ----------------------------------------------- Errors, hash could no be tied
581: }
582: }
583: }
1.3 www 584:
1.2 www 585: $ENV{'user.error.msg'}="$requrl:bre:0:0:Course not initialized";
586: return HTTP_NOT_ACCEPTABLE;
587: }
1.1 www 588:
589: 1;
590: __END__
1.2 www 591:
592:
593:
594:
595:
596:
597:
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>
![[BACK]](/icons/back.gif){kind=icon}
Return to lonnavmaps.pm CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [LON-CAPA] / loncom / interface