--- rat/lonratedt.pm 2002/05/15 19:50:37 1.17
+++ rat/lonratedt.pm 2006/05/23 18:31:13 1.77
@@ -1,7 +1,7 @@
# The LearningOnline Network with CAPA
# Edit Handler for RAT Maps
#
-# $Id: lonratedt.pm,v 1.17 2002/05/15 19:50:37 www Exp $
+# $Id: lonratedt.pm,v 1.77 2006/05/23 18:31:13 albertel Exp $
#
# Copyright Michigan State University Board of Trustees
#
@@ -25,20 +25,155 @@
#
# http://www.lon-capa.org/
#
-# (TeX Content Handler
-#
-# 05/29/00,05/30 Gerd Kortemeyer)
-# 7/1,6/30 Gerd Kortemeyer
+
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::lonlocal;
+use File::Copy;
-my @order=();
-my @resources=();
+use vars qw(@order @resources @resparms @zombies);
# Mapread read maps into global arrays @links and @resources, determines status
@@ -52,6 +187,13 @@ sub mapread {
undef @links;
undef @resources;
undef @order;
+ undef @resparms;
+ undef @zombies;
+
+ @resources=('');
+ @order=();
+ @resparms=();
+ @zombies=();
my ($outtext,$errtext)=&Apache::lonratsrv::loadmap($fn,'');
if ($errtext) { return ($errtext,2); }
@@ -60,11 +202,24 @@ sub mapread {
foreach (split(/\<\&\>/,$outtext)) {
my ($command,$number,$content)=split(/\<\:\>/,$_);
if ($command eq 'objcont') {
- $resources[$number]=$content;
+ my ($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]=$content;
+ }
+ }
}
# ------------------------------------------------------- Is this a linear map?
my @starters=();
@@ -77,26 +232,31 @@ sub mapread {
my ($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;
@@ -127,7 +287,9 @@ sub mapread {
}
# ---------------------------------------------- Read a map as well as possible
-
+# Also used by the sequence handler
+# Call lonsequence::attemptread to read from resource space
+#
sub attemptread {
my $fn=shift;
@@ -143,7 +305,10 @@ sub attemptread {
foreach (split(/\<\&\>/,$outtext)) {
my ($command,$number,$content)=split(/\<\:\>/,$_);
if ($command eq 'objcont') {
- $theseres[$number]=$content;
+ my ($title,$src,$ext,$type)=split(/\:/,$content);
+ unless ($type eq 'zombie') {
+ $theseres[$number]=$content;
+ }
}
if ($command eq 'objlinks') {
$links[$number]=$content;
@@ -240,21 +405,31 @@ sub attemptread {
# --------------------------------------------------------- Build up RAT screen
sub ratedt {
my ($r,$url)=@_;
- $r->print(<
-
-
-
-
-