--- rat/lonratedt.pm 2002/05/13 14:33:50 1.11 +++ rat/lonratedt.pm 2004/01/14 22:47:46 1.52 @@ -1,7 +1,7 @@ # The LearningOnline Network with CAPA # Edit Handler for RAT Maps # -# $Id: lonratedt.pm,v 1.11 2002/05/13 14:33:50 www Exp $ +# $Id: lonratedt.pm,v 1.52 2004/01/14 22:47:46 www Exp $ # # Copyright Michigan State University Board of Trustees # @@ -32,13 +32,151 @@ package Apache::lonratedt; +=pod + +=head1 NAME + +Apache::lonratedt: advanced resource assembly tool + +=head1 SYNOPSIS + +lonratedt provides the routines and the handler for the Advanced + Resource Assembly Tool (RAT), and ties the various pieces together + with Javascript. + +=head1 OVERVIEW + +=head2 Map Representation + +=begin latex + +% +\begin{figure} +\begin{center}\includegraphics[% + width=0.55\paperwidth,bb = 0 0 200 100, draft, type=eps]{Map_Example}\end{center} + + +\caption{\label{Map_In_Advanced_Editor}Example of a Map in the Advanced Editor} +\end{figure} +% +\begin{figure} +\begin{lyxcode} + + +~~ + +~~~~ + +~~ + +~~~~ + +~~ + +~~~~ + +~~ + +~~~~ + +~~ + +~~~~ + +~~ + +~~~~ + +~~ + +~~ + +~~ + +~~ + +~~ +\end{lyxcode} + +\caption{\label{XML}XML for Map in Figure \ref{Map_In_Advanced_Editor}} +\end{figure} + +=end latex + +Fig. "XML for Map in Figure" shows the XML representation of the +resource map shown in Fig. "Example of a Map in the Advanced Editor", +which is the format in which maps are stored. In the figure, however, +additional graphical map layout information generated by the Advanced +Resource Assembly Tool is not displayed. This graphical information is +optional to re-generate the same graphical layout when the map is +brought up again in the Resource Assembly Tool, and is not needed for +any other system functionality. + +Maps can be generated by tools other than the Resource Assembly +Tool. In particular, an author might have some other representation of +a course sequence, which can be converted into a map using scripts. If +this map then were to be brought up in the Resource Assembly Tool, the +Tool would automatically generate a graphical layout for it. Each +entry of the map (resources, conditions and links) is stored in a +separate tag. + +Resources and conditionsX have to have unique ID +numbers. These numbers are automatically generated by the Resource +Assembly Tool when the entry is first created, or added to the entries +when a map generated outside the Resource Assembly Tool is first +retrieved. They can also be assigned by custom scripts or added in by +hand. + +In the XML example, entry 1 is the start resource of the map. When +this map is accessed, the source (src) URL of this tag will be the +first resource rendered. Entry 2 is the finish resource of this +map. This resource will be the last resource in the sequence of +resources. Entry 6 is a problem resource with the given URL and title, +as well as the priority "mandatory". Entry 19 is a condition, which is +used by the link between entries 6, the problem, and 9, a +sequence. I + +=cut + use strict; use Apache::Constants qw(:common); use Apache::lonnet; use Apache::lonratsrv; +use Apache::lonsequence; +use Apache::loncommon; +use Apache::lonlocal; +use File::Copy; -my @order=(); -my @resources=(); +use vars qw(@order @resources); # Mapread read maps into global arrays @links and @resources, determines status @@ -52,6 +190,8 @@ sub mapread { undef @links; undef @resources; undef @order; + @resources=(''); + @order=(); my ($outtext,$errtext)=&Apache::lonratsrv::loadmap($fn,''); if ($errtext) { return ($errtext,2); } @@ -65,6 +205,9 @@ sub mapread { if ($command eq 'objlinks') { $links[$number]=$content; } + if ($command eq 'objparms') { + return(&mt('Map has resource parameters. Use advanced editor.'),1); + } } # ------------------------------------------------------- Is this a linear map? my @starters=(); @@ -77,26 +220,31 @@ sub mapread { my ($start,$end,$cond)=split(/\:/,$_); if ((defined($starters[$start])) || (defined($endings[$end]))) { return - ('Map has branchings. Use advanced editor.',1); + (&mt('Map has branchings. Use advanced editor.'),1); } $starters[$start]=1; $endings[$end]=1; if ($cond) { return - ('Map has conditions. Use advanced editor.',1); + (&mt('Map has conditions. Use advanced editor.'),1); } } } - for (my $i=0; $i<=$#resources; $i++) { + for (my $i=1; $i<=$#resources; $i++) { if (defined($resources[$i])) { unless (($starters[$i]) || ($endings[$i])) { return - ('Map has unconnected resources. Use advanced editor.',1); + (&mt('Map has unconnected resources. Use advanced editor.'),1); } } } - +# ---------------------------------------------- Did we just read an empty map? + if ($#resources<1) { + undef $resources[0]; + $resources[1]=':::start'; + $resources[2]=':::finish'; + } # -------------------------------------------------- This is a linear map, sort my $startidx=0; @@ -126,6 +274,119 @@ sub mapread { return $errtext; } +# ---------------------------------------------- Read a map as well as possible +# Also used by the sequence handler +# Call lonsequence::attemptread to read from resource space +# +sub attemptread { + my $fn=shift; + + my @links; + undef @links; + my @theseres; + undef @theseres; + + my ($outtext,$errtext)=&Apache::lonratsrv::loadmap($fn,''); + if ($errtext) { return @theseres } + +# -------------------------------------------------------------------- Read map + foreach (split(/\<\&\>/,$outtext)) { + my ($command,$number,$content)=split(/\<\:\>/,$_); + if ($command eq 'objcont') { + $theseres[$number]=$content; + } + if ($command eq 'objlinks') { + $links[$number]=$content; + } + } + +# --------------------------------------------------------------- Sort, sort of + + my @objsort=(); + undef @objsort; + + my @data1=(); + my @data2=(); + undef @data1; + undef @data2; + + my $k; + my $kj; + my $j; + my $ij; + + for ($k=1;$k<=$#theseres;$k++) { + if (defined($theseres[$k])) { + $objsort[$#objsort+1]=$k; + } + } + + for ($k=1;$k<=$#links;$k++) { + if (defined($links[$k])) { + @data1=split(/\:/,$links[$k]); + $kj=-1; + for (my $j=0;$j<=$#objsort;$j++) { + if ((split(/\:/,$objsort[$j]))[0]==$data1[0]) { + $kj=$j; + } + } + if ($kj!=-1) { $objsort[$kj].=':'.$data1[1]; } + } + } + for ($k=0;$k<=$#objsort;$k++) { + for ($j=0;$j<=$#objsort;$j++) { + if ($k!=$j) { + @data1=split(/\:/,$objsort[$k]); + @data2=split(/\:/,$objsort[$j]); + my $dol=$#data1+1; + my $dtl=$#data2+1; + if ($dol+$dtl<1000) { + for ($kj=1;$kj<$dol;$kj++) { + if ($data1[$kj]==$data2[0]) { + for ($ij=1;$ij<$dtl;$ij++) { + $data1[$#data1+1]=$data2[$ij]; + } + } + } + for ($kj=1;$kj<$dtl;$kj++) { + if ($data2[$kj]==$data1[0]) { + for ($ij=1;$ij<$dol;$ij++) { + $data2[$#data2+1]=$data1[$ij]; + } + } + } + $objsort[$k]=join(':',@data1); + $objsort[$j]=join(':',@data2); + } + } + } + } +# ---------------------------------------------------------------- Now sort out + + @objsort=sort { + my @data1=split(/\:/,$a); + my @data2=split(/\:/,$b); + my $rvalue=0; + my $k; + for ($k=1;$k<=$#data1;$k++) { + if ($data1[$k]==$data2[0]) { $rvalue--; } + } + for ($k=1;$k<=$#data2;$k++) { + if ($data2[$k]==$data1[0]) { $rvalue++; } + } + if ($rvalue==0) { $rvalue=$#data2-$#data1; } + $rvalue; + } @objsort; + + my @outres=(); + undef @outres; + + for ($k=0;$k<=$#objsort;$k++) { + $outres[$k]=$theseres[(split(/\:/,$objsort[$k]))[0]]; + } + return @outres; +} + # --------------------------------------------------------- Build up RAT screen sub ratedt { my ($r,$url)=@_; @@ -153,30 +414,124 @@ sub buttons { my $adv=shift; my $output='
'; if ($adv==1) { - $output.=''; + $output.=''. + &Apache::loncommon::help_open_topic('Sequence_Advanced_Editor_Creation');; } else { unless ($adv==2) { - $output.=''; + $output.=''. + &Apache::loncommon::help_open_topic('Sequence_Simple_Editor_Creation'); } - $output.=''; + $output.=''. + &Apache::loncommon::help_open_topic('Sequence_Advanced_Editor_Creation'); } return $output.'

'; } -sub smpedt { - my ($r,$errtext)=@_; - my $buttons=&buttons(2); - my $targetwindow=join("\n",map { - my ($name)=split(/\:/,$resources[$_]); - unless ($name) { $name='UNKNOWN'; } - ''; - } @order); +# ----------------------------------------------------------- Paste into target +# modifies @order, @resources -# ----------------------------------------------------- Start simple RAT screen - $r->print(< - - - +$bodytag $buttons $errtext -
+ + + + - - - + + + + + - -
Import Target
-Group Search -Group Import -   
+
$lt{'ta'} File: $url
+ + +$lt{'as'} +
+ +
+ + + + +
  + + + +$lt{'as'} +
+ + + +
$targetmsg + + + +
+ +$lt{'cs'}

- +


+$lt{'ps'}
+

+


+$lt{'pas'}
+
+
+ + + + +
+ ENDSMPHEAD - - $r->print(''); } # ----------------------------------------------------------------- No such dir @@ -298,23 +1064,32 @@ ENDNODIR # ---------------------------------------------------------------- View Handler sub viewmap { - my ($r,$adv,$errtext)=@_; - $r->print(''.&buttons($adv)); + my ($r,$url,$adv,$errtext)=@_; + $r->print(''. + &Apache::loncommon::bodytag('Edit Content of a Map'). + &buttons($adv)); if ($errtext) { $r->print($errtext.'
'); } - foreach (@resources) { + my $idx=0; + $r->print('

'.$url.'

'); + if ($adv) { + $r->print('

'.&mt('Map contents are not shown in order.').'


'); + } + foreach (&attemptread(&Apache::lonnet::filelocation('',$url))) { if (defined($_)) { + $idx++; my ($title,$url)=split(/\:/,$_); $title=~s/\&colon\;/\:/g; $url=~s/\&colon\;/\:/g; - unless ($title) { $title='Unknown'; } + unless ($title) { $title=(split(/\//,$url))[-1] }; + unless ($title) { $title='Empty'; } if ($url) { $r->print(''); } $r->print(&Apache::lonratsrv::qtescape($title)); if ($url) { $r->print(''); } - $r->print('
'); + $r->print('
'); } } $r->print(''); @@ -324,11 +1099,17 @@ sub viewmap { sub handler { my $r=shift; - $r->content_type('text/html'); + &Apache::loncommon::content_type($r,'text/html'); $r->send_http_header; return OK if $r->header_only; - + my $target = $ENV{'form.grade_target'}; + if ($target eq 'meta') { + &Apache::loncommon::content_type($r,'text/html'); + $r->send_http_header; + return OK; + } + my $url=$r->uri; my $fn=&Apache::lonnet::filelocation('',$url); @@ -363,9 +1144,9 @@ sub handler { if ($ENV{'form.forceadv'}) { &ratedt($r,$url); } elsif ($ENV{'form.forcesmp'}) { - &smpedt($r,$errtext); + &smpedt($r,$url,$errtext); } else { - &viewmap($r,$adv,$errtext); + &viewmap($r,$url,$adv,$errtext); } return OK; }