--- loncom/interface/lonnavmaps.pm 2001/01/06 13:45:37 1.2 +++ loncom/interface/lonnavmaps.pm 2002/09/09 17:20:14 1.50 @@ -1,6 +1,30 @@ # The LearningOnline Network with CAPA # Navigate Maps Handler # +# $Id: lonnavmaps.pm,v 1.50 2002/09/09 17:20:14 www Exp $ +# +# Copyright Michigan State University Board of Trustees +# +# This file is part of the LearningOnline Network with CAPA (LON-CAPA). +# +# LON-CAPA is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. +# +# LON-CAPA is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with LON-CAPA; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA +# +# /home/httpd/html/adm/gpl.txt +# +# http://www.lon-capa.org/ +# # (Page Handler # # (TeX Content Handler @@ -9,13 +33,17 @@ # 08/30,08/31,09/06,09/14,09/15,09/16,09/19,09/20,09/21,09/23, # 10/02,10/10,10/14,10/16,10/18,10/19,10/31,11/6,11/14,11/16 Gerd Kortemeyer) # -# 3/1/1,6/1 Gerd Kortemeyer +# 3/1/1,6/1,17/1,29/1,30/1,2/8,9/21,9/24,9/25 Gerd Kortemeyer +# YEAR=2002 +# 1/1 Gerd Kortemeyer +# package Apache::lonnavmaps; use strict; use Apache::Constants qw(:common :http); use Apache::lonnet(); +use Apache::loncommon(); use HTML::TokeParser; use GDBM_File; @@ -23,6 +51,26 @@ use GDBM_File; my %hash; my @rows; +# +# These cache hashes need to be independent of user, resource and course +# (user and course can/should be in the keys) +# + +my %courserdatas; +my %userrdatas; + +# +# These global hashes are dependent on user, course and resource, +# and need to be initialized every time when a sheet is calculated +# +my %courseopt; +my %useropt; +my %parmhash; + +# This parameter keeps track of whether obtaining the user's information +# failed, which the colorizer in astatus can use +my $networkFailedFlag = 0; + # ------------------------------------------------------------------ Euclid gcd sub euclid { @@ -36,204 +84,710 @@ sub euclid { return $b; } +# --------------------------------------------------------------------- Parmval + +# -------------------------------------------- Figure out a cascading parameter +# +# For this function to work +# +# * parmhash needs to be tied +# * courseopt and useropt need to be initialized for this user and course +# + +sub parmval { + my ($what,$symb)=@_; + my $cid=$ENV{'request.course.id'}; + my $csec=$ENV{'request.course.sec'}; + my $uname=$ENV{'user.name'}; + my $udom=$ENV{'user.domain'}; + + unless ($symb) { return ''; } + my $result=''; + + my ($mapname,$id,$fn)=split(/\_\_\_/,$symb); + +# ----------------------------------------------------- Cascading lookup scheme + my $rwhat=$what; + $what=~s/^parameter\_//; + $what=~s/\_/\./; + + my $symbparm=$symb.'.'.$what; + my $mapparm=$mapname.'___(all).'.$what; + my $usercourseprefix=$uname.'_'.$udom.'_'.$cid; + + my $seclevel= $usercourseprefix.'.['.$csec.'].'.$what; + my $seclevelr=$usercourseprefix.'.['.$csec.'].'.$symbparm; + my $seclevelm=$usercourseprefix.'.['.$csec.'].'.$mapparm; + + my $courselevel= $usercourseprefix.'.'.$what; + my $courselevelr=$usercourseprefix.'.'.$symbparm; + my $courselevelm=$usercourseprefix.'.'.$mapparm; + +# ---------------------------------------------------------- first, check user + if ($uname) { + if ($useropt{$courselevelr}) { return $useropt{$courselevelr}; } + if ($useropt{$courselevelm}) { return $useropt{$courselevelm}; } + if ($useropt{$courselevel}) { return $useropt{$courselevel}; } + } + +# ------------------------------------------------------- second, check course + if ($csec) { + if ($courseopt{$seclevelr}) { return $courseopt{$seclevelr}; } + if ($courseopt{$seclevelm}) { return $courseopt{$seclevelm}; } + if ($courseopt{$seclevel}) { return $courseopt{$seclevel}; } + } + + if ($courseopt{$courselevelr}) { return $courseopt{$courselevelr}; } + if ($courseopt{$courselevelm}) { return $courseopt{$courselevelm}; } + if ($courseopt{$courselevel}) { return $courseopt{$courselevel}; } + +# ----------------------------------------------------- third, check map parms + + my $thisparm=$parmhash{$symbparm}; + if ($thisparm) { return $thisparm; } + +# ----------------------------------------------------- fourth , check default + + my $default=&Apache::lonnet::metadata($fn,$rwhat.'.default'); + if ($default) { return $default} + +# --------------------------------------------------- fifth , cascade up parts + + my ($space,@qualifier)=split(/\./,$rwhat); + my $qualifier=join('.',@qualifier); + unless ($space eq '0') { + my ($part,$id)=split(/\_/,$space); + if ($id) { + my $partgeneral=&parmval($part.".$qualifier",$symb); + if ($partgeneral) { return $partgeneral; } + } else { + my $resourcegeneral=&parmval("0.$qualifier",$symb); + if ($resourcegeneral) { return $resourcegeneral; } + } + } + return ''; +} + + + +# ------------------------------------------------------------- Find out status +# return codes +# tcode (timecode) +# 1: will open later +# 2: is open and not past due yet +# 3: is past due date +# 4: due in the next 24 hours +# +# code (curent solved status) +# 1: not attempted +# 2: attempted but wrong, or incorrect by instructor +# 3: solved or correct by instructor +# 4: partially correct (one or more parts correct) +# "excused" needs to be supported, but is not yet. +sub astatus { + my $rid=shift; + my $code=0; + my $ctext=''; + $rid=~/(\d+)\.(\d+)/; + my $symb=&Apache::lonnet::declutter($hash{'map_id_'.$1}).'___'.$2.'___'. + &Apache::lonnet::declutter($hash{'src_'.$rid}); + my %duedate=(); + my %opendate=(); + my %answerdate=(); + # need to always check part 0's open/due/answer status + foreach (sort(split(/\,/,&Apache::lonnet::metadata($hash{'src_'.$rid},'allpossiblekeys')))) { + if ($_=~/^parameter\_(.*)\_opendate$/) { + my $part=$1; + $duedate{$part}=&parmval($part.'.duedate',$symb); + $opendate{$part}=&parmval($part.'.opendate',$symb); + $answerdate{$part}=&parmval($part.'.answerdate',$symb); + if (&parmval($part.'.opendate.type',$symb) eq 'date_interval') { + $opendate{$part}=$duedate{$part}-$opendate{$part}; + } + if (&parmval($part.'.answerdate.type',$symb) eq 'date_interval') { + $answerdate{$part}=$duedate{$part}+$answerdate{$part}; + } + } + } + my $now=time; + my $tcode=0; + + my %returnhash=&Apache::lonnet::restore($symb); + + foreach (sort(keys(%opendate))) { + my $duedate=$duedate{$_}; + my $opendate=$opendate{$_}; + my $answerdate=$answerdate{$_}; + my $preface=''; + unless ($_ eq '0') { $preface=' Part: '.$_.' '; } + if ($opendate) { + if ($now<$duedate || (!$duedate)) { + unless ($tcode==4) { $tcode=2; } + if ($duedate) { + $ctext.=$preface.'Due: '.localtime($duedate); + } else { + $ctext.=$preface.'No Due Date'; + } + if ($now<$opendate) { + unless ($tcode) { $tcode=1; } + $ctext.=$preface.'Open: '.localtime($opendate); + } + if ($duedate && $duedate-$now<86400) { + $tcode=4; + $ctext.=$preface.'Due: '.localtime($duedate); + } + } else { + unless (($tcode==4) || ($tcode eq 2)) { $tcode=3; } + if ($now<$answerdate) { + $ctext.='Answer: '.localtime($duedate); + } + } + } else { + unless (($tcode==2) || ($tcode==4)) { $tcode=1; } + } + + my $status=$returnhash{'resource.'.$_.'.solved'}; + + if ($status eq 'correct_by_student') { + if ($code==0||$code==3) { $code=3; } else { $code=4; } + $ctext.=' solved'; + } elsif ($status eq 'correct_by_override') { + if ($code==0||$code==3) { $code=3; } else { $code=4; } + $ctext.=' override'; + } elsif ($status eq 'incorrect_attempted') { + if ($code!=4 && $code!=3) { $code=2; } + if ($code==3) { $code=4; } + $ctext.=' ('. + ($returnhash{'resource.'.$_.'.tries'}? + $returnhash{'resource.'.$_.'.tries'}:'0'); + my $numtries = &parmval($_.'.maxtries',$symb); + if ($numtries) { $ctext.='/'.$numtries.' tries'; } + $ctext.=')'; + } elsif ($status eq 'incorrect_by_override') { + if ($code!=4 && $code!=3) { $code=2; } + if ($code==3) { $code=4; } + $ctext.=' override'; + } elsif ($status eq 'excused') { + if ($code==0||$code==3) { $code=3; } else { $code=4; } + $ctext.=' excused'; + } else { + if ($code==0) { $code=1; } + } + } + + return 'p'.$code.$tcode.'"'.$ctext.'"'; +} + + +sub addresource { + my ($resource,$sofar,$rid,$showtypes,$indent,$linkid)=@_; + if ($showtypes eq 'problems') { + if ($resource!~/\.(problem|exam|quiz|assess|survey|form)$/) { + return; + } + } + my $brepriv=&Apache::lonnet::allowed('bre',$resource); + if ($hash{'src_'.$rid}) { + if (($brepriv eq '2') || ($brepriv eq 'F')) { + my $pprefix=''; + if ($resource=~/\.(problem|exam|quiz|assess|survey|form)$/) { + $pprefix=&astatus($rid); + } + $$sofar++; + if ($indent) { $pprefix='i'.$indent.','.$pprefix; } + if ($linkid) { $pprefix='l'.$linkid.','.$pprefix; } + if (defined($rows[$$sofar])) { + $rows[$$sofar].='&'.$pprefix.$rid; + } else { + $rows[$$sofar]=$pprefix.$rid; + } + } + } +} + +sub followlinks () { + my ($rid,$sofar,$beenhere,$further,$showtypes,$indent,$linkid)=@_; + my $mincond=1; + my $next=''; + foreach (split(/\,/,$hash{'to_'.$rid})) { + my $thiscond= + &Apache::lonnet::directcondval($hash{'condid_'.$hash{'undercond_'.$_}}); + if ($thiscond>=$mincond) { + if ($next) { + $next.=','.$_.':'.$thiscond; + } else { + $next=$_.':'.$thiscond; + } + if ($thiscond>$mincond) { $mincond=$thiscond; } + } + } + my $col=0; + &Apache::lonxml::debug("following links -$next-"); + foreach (split(/\,/,$next)) { + my ($nextlinkid,$condval)=split(/\:/,$_); + if ($condval>=$mincond) { + my $now=&tracetable($sofar,$hash{'goesto_'.$nextlinkid}, + $beenhere,$showtypes,$indent,$linkid); + if ($now>$further) { + if ($col>0) { + my $string; + for(my $i=0;$i<$col;$i++) { $string.='&'; } + for(my $i=$further+1;$now-1>$i;$i++) { + $rows[$i]=$string.$rows[$i]; + } + } + $further=$now; + } + } + $col++; + } + return $further; +} # ------------------------------------------------------------ Build page table sub tracetable { - my ($sofar,$rid,$beenhere)=@_; + my ($sofar,$rid,$beenhere,$showtypes,$indent,$linkid)=@_; + my $newshowtypes=$showtypes; my $further=$sofar; - unless ($beenhere=~/\&$rid\&/) { - $beenhere.=$rid.'&'; - - if (defined($hash{'is_map_'.$rid})) { - if ((defined($hash{'map_start_'.$hash{'src_'.$rid}})) && - (defined($hash{'map_finish_'.$hash{'src_'.$rid}}))) { - my $frid=$hash{'map_finish_'.$hash{'src_'.$rid}}; - $sofar= - &tracetable($sofar,$hash{'map_start_'.$hash{'src_'.$rid}}, - '&'.$frid.'&'); - $sofar++; - if ($hash{'src_'.$frid}) { - my $brepriv=&Apache::lonnet::allowed('bre',$hash{'src_'.$frid}); - if (($brepriv eq '2') || ($brepriv eq 'F')) { - if (defined($rows[$sofar])) { - $rows[$sofar].='&'.$frid; - } else { - $rows[$sofar]=$frid; - } - } - } - } - } else { - $sofar++; - if ($hash{'src_'.$rid}) { - my $brepriv=&Apache::lonnet::allowed('bre',$hash{'src_'.$rid}); - if (($brepriv eq '2') || ($brepriv eq 'F')) { - if (defined($rows[$sofar])) { - $rows[$sofar].='&'.$rid; - } else { - $rows[$sofar]=$rid; - } - } - } - } - - if (defined($hash{'to_'.$rid})) { - my $mincond=1; - my $next=''; - map { - my $thiscond= - &Apache::lonnet::directcondval($hash{'condid_'.$hash{'undercond_'.$_}}); - if ($thiscond>=$mincond) { - if ($next) { - $next.=','.$_.':'.$thiscond; - } else { - $next=$_.':'.$thiscond; - } - if ($thiscond>$mincond) { $mincond=$thiscond; } - } - } split(/\,/,$hash{'to_'.$rid}); - map { - my ($linkid,$condval)=split(/\:/,$_); - if ($condval>=$mincond) { - my $now=&tracetable($sofar,$hash{'goesto_'.$linkid},$beenhere); - if ($now>$further) { $further=$now; } - } - } split(/\,/,$next); +# $Apache::lonxml::debug=1; + &Apache::lonxml::debug("$rid ; $linkid ; $sofar ; $beenhere ; ".$hash{'src_'.$rid}); + if ($beenhere=~/\&$rid\&/) { return $further; } + $beenhere.=$rid.'&'; + + if (defined($hash{'is_map_'.$rid})) { + $sofar++; + my $tprefix=''; + if ($hash{'map_type_'.$hash{'map_pc_'.$hash{'src_'.$rid}}} + eq 'sequence') { + $tprefix='h'; + } elsif ($hash{'map_type_'.$hash{'map_pc_'.$hash{'src_'.$rid}}} + eq 'page') { + $tprefix='j'; + if ($indent) { $tprefix='i'.$indent.','.$tprefix; } + if ($linkid) { $tprefix='l'.$linkid.','.$tprefix; } + $newshowtypes='problems'; + $indent++; + #if in a .page continue to link the encompising .page + if (!$linkid) { $linkid=$rid; } + } + if (defined($rows[$sofar])) { + $rows[$sofar].='&'.$tprefix.$rid; + } else { + $rows[$sofar]=$tprefix.$rid; + } + if ((defined($hash{'map_start_'.$hash{'src_'.$rid}})) && + (defined($hash{'map_finish_'.$hash{'src_'.$rid}}))) { + my $frid=$hash{'map_finish_'.$hash{'src_'.$rid}}; + $sofar=&tracetable($sofar,$hash{'map_start_'.$hash{'src_'.$rid}}, + '&'.$frid.'&',$newshowtypes,$indent,$linkid); + &addresource($hash{'src_'.$frid},\$sofar,$frid,$newshowtypes, + $indent,$linkid); + if ($tprefix =~ /j$/) { $indent--; $linkid=''; } + } + } else { + &addresource($hash{'src_'.$rid},\$sofar,$rid,$showtypes, + $indent,$linkid); + } - } + if (defined($hash{'to_'.$rid})) { + $further=&followlinks($rid,$sofar,$beenhere,$further,$showtypes, + $indent,$linkid); } + return $further; } # ================================================================ Main Handler sub handler { - my $r=shift; + my $r=shift; # ------------------------------------------- Set document type for header only - if ($r->header_only) { - if ($ENV{'browser.mathml'}) { - $r->content_type('text/xml'); - } else { - $r->content_type('text/html'); - } - $r->send_http_header; - return OK; - } - - my $requrl=$r->uri; + if ($r->header_only) { + if ($ENV{'browser.mathml'}) { + $r->content_type('text/xml'); + } else { + $r->content_type('text/html'); + } + $r->send_http_header; + return OK; + } + my $requrl=$r->uri; + my $hashtied; # ----------------------------------------------------------------- Tie db file - if ($ENV{'request.course.fn'}) { - my $fn=$ENV{'request.course.fn'}; - if (-e "$fn.db") { - if (tie(%hash,'GDBM_File',"$fn.db",&GDBM_READER,0640)) { + my $fn; + if ($ENV{'request.course.fn'}) { + $fn=$ENV{'request.course.fn'}; + if (-e "$fn.db") { + if ((tie(%hash,'GDBM_File',"$fn.db",&GDBM_READER(),0640)) && + (tie(%parmhash,'GDBM_File', + $ENV{'request.course.fn'}.'_parms.db', + &GDBM_READER(),0640))) { + $hashtied=1; + } + } + } + if (!$hashtied) { + $ENV{'user.error.msg'}="$requrl:bre:0:0:Course not initialized"; + return HTTP_NOT_ACCEPTABLE; + } + # ------------------------------------------------------------------- Hash tied - my $firstres=$hash{'map_start_/res/'.$ENV{'request.course.uri'}}; - my $lastres=$hash{'map_finish_/res/'.$ENV{'request.course.uri'}}; - if (($firstres) && ($lastres)) { + + if ($ENV{'browser.mathml'}) { + $r->content_type('text/xml'); + } else { + $r->content_type('text/html'); + } + &Apache::loncommon::no_cache($r); + $r->send_http_header; + + my $firstres=$hash{'map_start_'. + &Apache::lonnet::clutter($ENV{'request.course.uri'})}; + my $lastres=$hash{'map_finish_'. + &Apache::lonnet::clutter($ENV{'request.course.uri'})}; + if (!(($firstres) && ($lastres))) { + $r->print('Coursemap undefined.'); + } else { + # ----------------------------------------------------------------- Render page +# -------------------------------------------------------------- Set parameters - @rows=(); - &tracetable(0,$firstres,'&'.$lastres.'&'); - if ($hash{'src_'.$lastres}) { - my $brepriv= - &Apache::lonnet::allowed('bre',$hash{'src_'.$lastres}); - if (($brepriv eq '2') || ($brepriv eq 'F')) { - $rows[$#rows+1]=''.$lastres; - } - } - -# ------------------------------------------------------------ Add to symb list - - my $i; - my %symbhash=(); - for ($i=0;$i<=$#rows;$i++) { - if ($rows[$i]) { - my @colcont=split(/\&/,$rows[$i]); - map { - $symbhash{$hash{'src_'.$_}}=''; - } @colcont; - } - } - &Apache::lonnet::symblist($requrl,%symbhash); +# ---------------------------- initialize coursedata and userdata for this user + undef %courseopt; + undef %useropt; + + my $uname=$ENV{'user.name'}; + my $udom=$ENV{'user.domain'}; + my $uhome=$ENV{'user.home'}; + my $cid=$ENV{'request.course.id'}; + my $chome=$ENV{'course.'.$cid.'.home'}; + my ($cdom,$cnum)=split(/\_/,$cid); + + my $userprefix=$uname.'_'.$udom.'_'; + + unless ($uhome eq 'no_host') { +# ------------------------------------------------- Get coursedata (if present) + unless ((time-$courserdatas{$cid.'.last_cache'})<240) { + my $reply=&Apache::lonnet::reply('dump:'.$cdom.':'.$cnum. + ':resourcedata',$chome); + if ($reply!~/^error\:/) { + $courserdatas{$cid}=$reply; + $courserdatas{$cid.'.last_cache'}=time; + } + # check to see if network failed + elsif ( $reply=~/no.such.host/i || $reply=~/con.*lost/i ) + { + $networkFailedFlag = 1; + } + } + foreach (split(/\&/,$courserdatas{$cid})) { + my ($name,$value)=split(/\=/,$_); + $courseopt{$userprefix.&Apache::lonnet::unescape($name)}= + &Apache::lonnet::unescape($value); + } +# --------------------------------------------------- Get userdata (if present) + unless ((time-$userrdatas{$uname.'___'.$udom.'.last_cache'})<240) { + my $reply=&Apache::lonnet::reply('dump:'.$udom.':'.$uname.':resourcedata',$uhome); + if ($reply!~/^error\:/) { + $userrdatas{$uname.'___'.$udom}=$reply; + $userrdatas{$uname.'___'.$udom.'.last_cache'}=time; + } + } + foreach (split(/\&/,$userrdatas{$uname.'___'.$udom})) { + my ($name,$value)=split(/\=/,$_); + $useropt{$userprefix.&Apache::lonnet::unescape($name)}= + &Apache::lonnet::unescape($value); + } + } + + @rows=(); + + &tracetable(0,$firstres,'&','',0); # ------------------------------------------------------------------ Page parms - my $j; - my $lcm=1; - my $contents=0; + my $j; + my $i; + my $lcm=1; + my $contents=0; # ---------------------------------------------- Go through table to get layout - for ($i=0;$i<=$#rows;$i++) { - if ($rows[$i]) { - $contents++; - my @colcont=split(/\&/,$rows[$i]); - $lcm*=($#colcont+1)/euclid($lcm,($#colcont+1)); - } - } - - unless ($contents) { - $r->content_type('text/html'); - $r->send_http_header; - $r->print('Empty Map.'); - } else { -# ------------------------------------------------------------------ Build page + for ($i=0;$i<=$#rows;$i++) { + if ($rows[$i]) { + &Apache::lonxml::debug("Row $i is:".$rows[$i]); + $contents++; + my @colcont=split(/\&/,$rows[$i]); + $lcm*=($#colcont+1)/euclid($lcm,($#colcont+1)); + } + } -# ---------------------------------------------------------------- Send headers - $r->content_type('text/html'); - $r->send_http_header; - $r->print( - 'Navigate LON-CAPA Maps'); + unless ($contents) { + $r->print('Empty Map.'); + } else { - $r->print(''. - '

Navigate Course Map

'); +# ------------------------------------------------------------------ Build page -# ----------------------------------------------------------------- Start table - $r->print(''); - for ($i=0;$i<=$#rows;$i++) { - if ($rows[$i]) { - $r->print("\n"); - my @colcont=split(/\&/,$rows[$i]); - my $avespan=$lcm/($#colcont+1); - for ($j=0;$j<=$#colcont;$j++) { - my $rid=$colcont[$j]; - $r->print(''); - } - $r->print(''); - } - } - $r->print("\n
'. - $hash{'title_'.$rid}.''); - $r->print('
"); + my $currenturl=$ENV{'form.postdata'}; + $currenturl=~s/^http\:\/\///; + $currenturl=~s/^[^\/]+//; + +# ---------------------------------------------------------------- Send headers - $r->print(''); + my $date=localtime; + my $now=time; +# ----------------------------------------- Get email status and discussiontime + + my %emailstatus=&Apache::lonnet::dump('email_status'); + my $logouttime=$emailstatus{'logout'}; + my $courseleave=$emailstatus{'logout_'.$ENV{'request.course.id'}}; + my $lastcheck=($courseleave>$logouttime?$courseleave:$logouttime); + + my %discussiontimes=&Apache::lonnet::dump('discussiontimes', + $cdom,$cnum); + + my %feedback=(); + my %error=(); + foreach my $msgid (split(/\&/,&Apache::lonnet::reply('keys:'. + $ENV{'user.domain'}.':'. + $ENV{'user.name'}.':nohist_email', + $ENV{'user.home'}))) { + $msgid=&Apache::lonnet::unescape($msgid); + my $plain=&Apache::lonnet::unescape(&Apache::lonnet::unescape($msgid)); + if ($plain=~/(Error|Feedback) \[([^\]]+)\]/) { + my ($what,$url)=($1,$2); + my %status= + &Apache::lonnet::get('email_status',[$msgid]); + if ($status{$msgid}=~/^error\:/) { + $status{$msgid}=''; + } + + if (($status{$msgid} eq 'new') || + (!$status{$msgid})) { + if ($what eq 'Error') { + $error{$url}.=','.$msgid; + } else { + $feedback{$url}.=','.$msgid; + } + } + } + } +# ----------------------------------------------------------- Start Page Output + my $bodytagadd=''; + $r->print( + 'Navigate Course Map'); + if (($currenturl=~/^\/res/) && + ($currenturl!~/^\/res\/adm/)) { + $bodytagadd='onLoad="window.location.hash='."'curloc'".'"'; + } + $r->print(&Apache::loncommon::bodytag('Navigate Course Map','', + $bodytagadd)); + $r->print(''); + my $desc=$ENV{'course.'.$ENV{'request.course.id'}.'.description'}; + if (defined($desc)) { $r->print("

$desc

\n"); } + $r->print("

$date

\n"); + $r->rflush(); + $r->print(' New discussion since '. + localtime($lastcheck). + '
New message (click to open)

'); + if (($currenturl=~/^\/res/) && + ($currenturl!~/^\/res\/adm/)) { + $r->print('Current Location

'); + } + + # Handle a network error + + if ($networkFailedFlag) + { + $r->print('

LON-CAPA network failure.

'."\n"); + $r->print("

LON-CAPA's network is having difficulties, some problem" . + " information, such as due dates, will not be available."); + } +# ----------------------------------------------------- The little content list + for ($i=0;$i<=$#rows;$i++) { + if ($rows[$i]) { + my @colcont=split(/\&/,$rows[$i]); + my $avespan=$lcm/($#colcont+1); + for ($j=0;$j<=$#colcont;$j++) { + my $rid=$colcont[$j]; + if ($rid=~/^h(.+)/) { + $rid=$1; + $r->print('   '.$hash{'title_'.$rid}. + '
'); + } + } + } + } +# ----------------------------------------------------------------- Start table + $r->print('

'); + for ($i=0;$i<=$#rows;$i++) { + if ($rows[$i]) { + $r->print("\n"); + my @colcont=split(/\&/,$rows[$i]); + my $avespan=$lcm/($#colcont+1); + + # for each item I wish to print on this row... + for ($j=0;$j<=$#colcont;$j++) { + my $indent;my $indentstr; + my $linkid; + my $rid=$colcont[$j]; + $rid=~/(\d+)\.(\d+)$/; + my $src= + &Apache::lonnet::declutter($hash{'src_'.$1.'.'.$2}); + my $symb= + &Apache::lonnet::declutter($hash{'map_id_'.$1}).'___'.$2.'___'.$src; + my $add=''; + my $hwk=''; + my $hwke=''; + if ($rid=~/^l(\d+\.\d+),(.+)/) { $linkid=$1; $rid=$2; } + if ($rid=~/^i(\d+),(.+)/) { $indent=$1; $rid=$2; } + if ($rid=~/^h(.+)/) { + $rid=$1; + $add=''; + if (($ENV{'user.adv'}) && + ($parmhash{$symb.'.0.parameter_randompick'})) { + $adde=' (randomly select '. + $parmhash{$symb.'.0.parameter_randompick'}. + ')'; + } + } + if ($rid=~/^j(.+)/) { $rid=$1; } + if ($rid=~/^p(\d)(\d)\"([\w\: \(\)\/\,]*)\"(.+)/) { + # sub astatus describes what code/tcode mean + my $code=$1; + my $tcode=$2; + my $ctext=$3; + $rid=$4; + + # will open later + if ($tcode eq '1') { + $add=''; + } + } + $hwk=''; + $hwke=''; + if ($code eq '1') { + $hwke=' ('.$ctext.')'; + } + if ($code eq '2' || $code eq '4') { + $hwk=''; + $hwke=' ('.$ctext.')'; + } + if ($code eq '3') { + $hwk=''; + $hwke=' ('.$ctext.')'; + } + if ($networkFailedFlag) + { + $hwke=' (status unavailable)'; + } + } + if ($rid && $hash{'src_'.$rid} eq $currenturl) { + $add=$add.''. + '> '; + $adde= + ' <'.$adde; + } + if ($discussiontimes{$symb}>$lastcheck) { + $adde= + ''. + $adde; + } + if ($error{$src}) { + foreach (split(/\,/,$error{$src})) { + if ($_) { + $adde= + ' ' + .$adde; + } + } + } + if ($feedback{$src}) { + foreach (split(/\,/,$feedback{$src})) { + if ($_) { + $adde= + ' ' + .$adde; + } + } + } + if ($indent) { + my $is="  "; + for(my $i=-1;$i<$indent;$i++) { $indentstr.=$is; } + } + if (!$linkid) { $linkid=$rid; } + if ($hash{'randomout_'.$rid}) { + $adde=' (hidden)'.$adde; + } + $r->print($add.$indentstr); + if ($rid) { + $r->print(''. + $hwk.$hash{'title_'.$rid}.$hwke.''); + } + $r->print($adde); + } + $r->print(''); + } + } + $r->print("\n
'; + my $adde=''; + $adde=''; + } + + # solved/correct + if ($code eq '3') { + $add=''; + } elsif ($code eq '4') { # partially correct + $add=''; + } else { + # not attempted + + # we end up here on network failure, so pick a neutral + # color if the network failed instead of bright red. + if ( $networkFailedFlag ) + { + $add = ''; + } + else + { + $add=''; + } + + if ($tcode eq '2') { # open, not past due + $add=''; + } + + if ($tcode eq '4') { # due in next 24 hours + $add=''; + $adde='
"); + $r->print(''); # -------------------------------------------------------------------- End page - } + } # ------------------------------------------------------------- End render page - } else { - $r->content_type('text/html'); - $r->send_http_header; - $r->print('Coursemap undefined.'); - } + } # ------------------------------------------------------------------ Untie hash - unless (untie(%hash)) { - &Apache::lonnet::logthis("WARNING: ". - "Could not untie coursemap $fn (browse)."); - } -# -------------------------------------------------------------------- All done - return OK; -# ----------------------------------------------- Errors, hash could no be tied - } - } - } - $ENV{'user.error.msg'}="$requrl:bre:0:0:Course not initialized"; - return HTTP_NOT_ACCEPTABLE; + unless (untie(%hash)) { + &Apache::lonnet::logthis("WARNING: ". + "Could not untie coursemap $fn (browse)."); + } + unless (untie(%parmhash)) { + &Apache::lonnet::logthis("WARNING: ". + "Could not untie parmhash (browse)."); + } + return OK; } 1; 500 Internal Server Error

Internal Server Error

The server encountered an internal error or misconfiguration and was unable to complete your request.

Please contact the server administrator at root@localhost to inform them of the time this error occurred, and the actions you performed just before this error.

More information about this error may be available in the server error log.