Changelog and sed s/website authors/application authors/

[catagits/Catalyst-Runtime.git] / lib / Catalyst / DispatchType / Chained.pm

diff --git a/lib/Catalyst/DispatchType/Chained.pm b/lib/Catalyst/DispatchType/Chained.pm
index a27f6ba..49fad32 100644 (file)
--- a/lib/Catalyst/DispatchType/Chained.pm
+++ b/lib/Catalyst/DispatchType/Chained.pm
@@ -5,6 +5,7 @@ extends 'Catalyst::DispatchType';
 
 use Text::SimpleTable;
 use Catalyst::ActionChain;
+use Catalyst::Utils;
 use URI;
 
 has _endpoints => (
@@ -38,6 +39,8 @@ Catalyst::DispatchType::Chained - Path Part DispatchType
 
 =head1 SYNOPSIS
 
+Path part matching, allowing several actions to sequentially take care of processing a request:
+
   #   root action - captures one argument after it
   sub foo_setup : Chained('/') PathPart('foo') CaptureArgs(1) {
       my ( $self, $c, $foo_arg ) = @_;
@@ -52,7 +55,16 @@ Catalyst::DispatchType::Chained - Path Part DispatchType
 
 =head1 DESCRIPTION
 
-See L</USAGE>.
+Dispatch type managing default behaviour.  For more information on
+dispatch types, see:
+
+=over 4
+
+=item * L<Catalyst::Manual::Intro> for how they affect application authors
+
+=item * L<Catalyst::DispatchType> for implementation information.
+
+=back
 
 =head1 METHODS
 
@@ -67,9 +79,10 @@ sub list {
 
     return unless $self->_endpoints;
 
+    my $column_width = Catalyst::Utils::term_width() - 35 - 9;
     my $paths = Text::SimpleTable->new(
-                    [ 35, 'Path Spec' ], [ 36, 'Private' ]
-                );
+       [ 35, 'Path Spec' ], [ $column_width, 'Private' ],
+    );
 
     my $has_unattached_actions;
     my $unattached_actions = Text::SimpleTable->new(
@@ -256,8 +269,13 @@ sub register {
           "Multiple Chained attributes not supported registering ${action}"
         );
     }
+    my $chained_to = $chained_attr[0];
+
+    Catalyst::Exception->throw(
+      "Actions cannot chain to themselves registering /${action}"
+    ) if ($chained_to eq '/' . $action);
 
-    my $children = ($self->_children_of->{ $chained_attr[0] } ||= {});
+    my $children = ($self->_children_of->{ $chained_to } ||= {});
 
     my @path_part = @{ $action->attributes->{PathPart} || [] };
 
@@ -330,6 +348,14 @@ sub uri_for_action {
    
 }
 
+=head2 $c->expand_action($action)
+
+Return a list of actions that represents a chained action. See 
+L<Catalyst::Dispatcher> for more info. You probably want to
+use the expand_action it provides rather than this directly.
+
+=cut
+
 sub expand_action {
     my ($self, $action) = @_;