--- rat/lonratedt.pm 2002/05/10 18:58:04 1.8 +++ rat/lonratedt.pm 2002/05/13 14:33:50 1.11 @@ -1,7 +1,7 @@ # The LearningOnline Network with CAPA # Edit Handler for RAT Maps # -# $Id: lonratedt.pm,v 1.8 2002/05/10 18:58:04 www Exp $ +# $Id: lonratedt.pm,v 1.11 2002/05/13 14:33:50 www Exp $ # # Copyright Michigan State University Board of Trustees # @@ -37,39 +37,92 @@ use Apache::Constants qw(:common); use Apache::lonnet; use Apache::lonratsrv; -my @links=(); +my @order=(); my @resources=(); # Mapread read maps into global arrays @links and @resources, determines status - +# sets @order - pointer to resources in right order +# sets @resources - array with the resources with correct idx +# sub mapread { my $fn=shift; + my @links; undef @links; undef @resources; + undef @order; my ($outtext,$errtext)=&Apache::lonratsrv::loadmap($fn,''); if ($errtext) { return ($errtext,2); } +# -------------------------------------------------------------------- Read map foreach (split(/\<\&\>/,$outtext)) { - my ($command,$parms)=split(/\<\:\>/,$_); - my @item=split(/\:/,$parms); + my ($command,$number,$content)=split(/\<\:\>/,$_); if ($command eq 'objcont') { + $resources[$number]=$content; } if ($command eq 'objlinks') { - if (defined($links[$item[0]])) { + $links[$number]=$content; + } + } +# ------------------------------------------------------- Is this a linear map? + my @starters=(); + my @endings=(); + undef @starters; + undef @endings; + + foreach (@links) { + if (defined($_)) { + my ($start,$end,$cond)=split(/\:/,$_); + if ((defined($starters[$start])) || (defined($endings[$end]))) { return - ('Map too complex, has branchings. Use advanced editor.',1); + ('Map has branchings. Use advanced editor.',1); } - if ($links[$item[2]]) { + $starters[$start]=1; + $endings[$end]=1; + if ($cond) { return - ('Map too complex, has conditions. Use advanced editor.',1); + ('Map has conditions. Use advanced editor.',1); } - $links[$item[0]]=$item[1]; } } + for (my $i=0; $i<=$#resources; $i++) { + if (defined($resources[$i])) { + unless (($starters[$i]) || ($endings[$i])) { + return + ('Map has unconnected resources. Use advanced editor.',1); + } + } + } + +# -------------------------------------------------- This is a linear map, sort + + my $startidx=0; + my $endidx=0; + for (my $i=0; $i<=$#resources; $i++) { + if (defined($resources[$i])) { + my ($title,$url,$ext,$type)=split(/\:/,$resources[$i]); + if ($type eq 'start') { $startidx=$i; } + if ($type eq 'finish') { $endidx=$i; } + } + } + my $k=0; + my $currentidx=$startidx; + $order[$k]=$currentidx; + for (my $i=0; $i<=$#resources; $i++) { + foreach (@links) { + my ($start,$end)=split(/\:/,$_); + if ($start==$currentidx) { + $currentidx=$end; + $k++; + $order[$k]=$currentidx; + last; + } + } + if ($currentidx==$endidx) { last; } + } return $errtext; } @@ -113,6 +166,12 @@ sub buttons { sub smpedt { my ($r,$errtext)=@_; my $buttons=&buttons(2); + my $targetwindow=join("\n",map { + my ($name)=split(/\:/,$resources[$_]); + unless ($name) { $name='UNKNOWN'; } + ''; + } @order); + # ----------------------------------------------------- Start simple RAT screen $r->print(< @@ -201,15 +260,29 @@ function idxcheck(mode) { $buttons $errtext +
+ + + + + + +
Import Target
Group Search Group Import - +   
+ +

+ +

 ENDSMPHEAD - $r->print( - ''); + $r->print('
'); } +# ----------------------------------------------------------------- No such dir sub nodir { my ($r,$dir)=@_; $dir=~s/^\/home\/\w+\/public\_html//; @@ -225,9 +298,25 @@ ENDNODIR # ---------------------------------------------------------------- View Handler sub viewmap { - my ($r,$adv)=@_; + my ($r,$adv,$errtext)=@_; $r->print(''.&buttons($adv)); - + if ($errtext) { + $r->print($errtext.'
'); + } + foreach (@resources) { + if (defined($_)) { + my ($title,$url)=split(/\:/,$_); + $title=~s/\&colon\;/\:/g; + $url=~s/\&colon\;/\:/g; + unless ($title) { $title='Unknown'; } + if ($url) { + $r->print(''); + } + $r->print(&Apache::lonratsrv::qtescape($title)); + if ($url) { $r->print(''); } + $r->print('
'); + } + } $r->print(''); } @@ -276,7 +365,7 @@ sub handler { } elsif ($ENV{'form.forcesmp'}) { &smpedt($r,$errtext); } else { - &viewmap($r,$adv); + &viewmap($r,$adv,$errtext); } return OK; }