--- rat/lonratedt.pm 2005/06/10 21:45:46 1.74
+++ rat/lonratedt.pm 2012/05/01 23:00:29 1.105.2.1
@@ -1,7 +1,7 @@
# The LearningOnline Network with CAPA
# Edit Handler for RAT Maps
#
-# $Id: lonratedt.pm,v 1.74 2005/06/10 21:45:46 www Exp $
+# $Id: lonratedt.pm,v 1.105.2.1 2012/05/01 23:00:29 raeburn Exp $
#
# Copyright Michigan State University Board of Trustees
#
@@ -29,401 +29,46 @@
package Apache::lonratedt;
-=pod
-
-=head1 NAME
-
-Apache::lonratedt: simple 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::lonsequence();
+use Apache::loncommon();
use Apache::lonlocal;
+use LONCAPA::map();
use File::Copy;
-
-use vars qw(@order @resources @resparms @zombies);
-
-
-# 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 $fn=shift;
-
- my @links;
- undef @links;
- undef @resources;
- undef @order;
- undef @resparms;
- undef @zombies;
-
- @resources=('');
- @order=();
- @resparms=();
- @zombies=();
-
- my ($outtext,$errtext)=&Apache::lonratsrv::loadmap($fn,'');
- if ($errtext) { return ($errtext,2); }
-
-# -------------------------------------------------------------------- Read map
- foreach (split(/\<\&\>/,$outtext)) {
- my ($command,$number,$content)=split(/\<\:\>/,$_);
- if ($command eq 'objcont') {
- my ($title,$src,$ext,$type)=split(/\:/,$content);
- if ($ext eq 'cond') { next; }
- if ($type ne 'zombie') {
- $resources[$number]=$content;
- } else {
- $zombies[$number]=$content;
- }
- }
- if ($command eq 'objlinks') {
- $links[$number]=$content;
- }
- if ($command eq 'objparms') {
- if ($resparms[$number]) {
- $resparms[$number].='&&&'.$content;
- } else {
- $resparms[$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
- (&mt('Map has branchings. Use advanced editor.'),1);
- }
- $starters[$start]=1;
- $endings[$end]=1;
- if ($cond) {
- return
- (&mt('Map has conditions. Use advanced editor.'),1);
- }
- }
-
- }
- for (my $i=1; $i<=$#resources; $i++) {
- if (defined($resources[$i])) {
- unless (($starters[$i]) || ($endings[$i])) {
- return
- (&mt('Map has unconnected resources. Use advanced editor.'),1);
- }
- }
- }
-# ---------------------------------------------- Did we just read an empty map?
- if ($#resources<1) {
- undef $resources[0];
- $resources[1]=':::start';
- $resources[2]=':::finish';
- }
-# -------------------------------------------------- This is a linear map, sort
-
- my $startidx=0;
- 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;
-}
-
-# ---------------------------------------------- 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 ($command eq 'objcont') {
- my ($title,$src,$ext,$type)=split(/\:/,$content);
- unless ($type eq 'zombie') {
- $theseres[$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[$k]))[0]];
- }
- return @outres;
-}
+use LONCAPA;
+use HTML::Entities();
# --------------------------------------------------------- Build up RAT screen
sub ratedt {
my ($r,$url)=@_;
- my $frameset = '