X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?p=catagits%2FCatalyst-Runtime.git;a=blobdiff_plain;f=lib%2FCatalyst%2FDispatchType%2FChained.pm;h=5bf3853c10ff68695be34675f15c869124e5d459;hp=4eec17194ad3823fdecfd731cda8ef7c1fdbd18a;hb=f3414019f472b55682ef3af53f761b6db7955887;hpb=837844227499d9317fbb8aad7b433fcb159b4b3a

diff --git a/lib/Catalyst/DispatchType/Chained.pm b/lib/Catalyst/DispatchType/Chained.pm
index 4eec171..5bf3853 100644
--- a/lib/Catalyst/DispatchType/Chained.pm
+++ b/lib/Catalyst/DispatchType/Chained.pm
@@ -1,11 +1,36 @@
 package Catalyst::DispatchType::Chained;
 
-use strict;
-use base qw/Catalyst::DispatchType/;
+use Class::C3;
+use Moose;
+extends 'Catalyst::DispatchType';
+
 use Text::SimpleTable;
 use Catalyst::ActionChain;
 use URI;
 
+has _endpoints => (
+                   is => 'rw',
+                   isa => 'ArrayRef',
+                   required => 1,
+                   default => sub{ [] },
+                  );
+
+has _actions => (
+                 is => 'rw',
+                 isa => 'HashRef',
+                 required => 1,
+                 default => sub{ {} },
+                );
+
+has _children_of => (
+                     is => 'rw',
+                     isa => 'HashRef',
+                     required => 1,
+                     default => sub{ {} },
+                    );
+
+no Moose;
+
 # please don't perltidy this. hairy code within.
 
 =head1 NAME
@@ -41,7 +66,7 @@ Debug output for Path Part dispatch points
 sub list {
     my ( $self, $c ) = @_;
 
-    return unless $self->{endpoints};
+    return unless $self->_endpoints;
 
     my $paths = Text::SimpleTable->new(
                     [ 35, 'Path Spec' ], [ 36, 'Private' ]
@@ -49,7 +74,7 @@ sub list {
 
     ENDPOINT: foreach my $endpoint (
                   sort { $a->reverse cmp $b->reverse }
-                           @{ $self->{endpoints} }
+                           @{ $self->_endpoints }
                   ) {
         my $args = $endpoint->attributes->{Args}->[0];
         my @parts = (defined($args) ? (("*") x $args) : '...');
@@ -65,7 +90,7 @@ sub list {
                     if (defined $pp->[0] && length $pp->[0]);
             }
             $parent = $curr->attributes->{Chained}->[0];
-            $curr = $self->{actions}{$parent};
+            $curr = $self->_actions->{$parent};
             unshift(@parents, $curr) if $curr;
         }
         next ENDPOINT unless $parent eq '/'; # skip dangling action
@@ -97,19 +122,21 @@ Calls C<recurse_match> to see if a chain matches the C<$path>.
 sub match {
     my ( $self, $c, $path ) = @_;
 
-    return 0 if @{$c->req->args};
+    my $request = $c->request;
+    return 0 if @{$request->args};
 
     my @parts = split('/', $path);
 
-    my ($chain, $captures) = $self->recurse_match($c, '/', \@parts);
+    my ($chain, $captures, $parts) = $self->recurse_match($c, '/', \@parts);
+    push @{$request->args}, @$parts if $parts && @$parts;
 
     return 0 unless $chain;
 
     my $action = Catalyst::ActionChain->from_chain($chain);
 
-    $c->req->action("/${action}");
-    $c->req->match("/${action}");
-    $c->req->captures($captures);
+    $request->action("/${action}");
+    $request->match("/${action}");
+    $request->captures($captures);
     $c->action($action);
     $c->namespace( $action->namespace );
 
@@ -124,8 +151,9 @@ Recursive search for a matching chain.
 
 sub recurse_match {
     my ( $self, $c, $parent, $path_parts ) = @_;
-    my $children = $self->{children_of}{$parent};
+    my $children = $self->_children_of->{$parent};
     return () unless $children;
+    my $best_action;
     my @captures;
     TRY: foreach my $try_part (sort { length($b) <=> length($a) }
                                    keys %$children) {
@@ -152,22 +180,44 @@ sub recurse_match {
                 push(@captures, splice(@parts, 0, $capture_attr->[0]));
 
                 # try the remaining parts against children of this action
-                my ($actions, $captures) = $self->recurse_match(
+                my ($actions, $captures, $action_parts) = $self->recurse_match(
                                              $c, '/'.$action->reverse, \@parts
                                            );
-                if ($actions) {
-                    return [ $action, @$actions ], [ @captures, @$captures ];
+                if ($actions && (!$best_action || $#$action_parts < $#{$best_action->{parts}})){
+                    $best_action = {
+                        actions => [ $action, @$actions ],
+                        captures=> [ @captures, @$captures ],
+                        parts   => $action_parts
+                        };
                 }
-            } else {
+            }
+            else {
                 {
                     local $c->req->{arguments} = [ @{$c->req->args}, @parts ];
                     next TRY_ACTION unless $action->match($c);
                 }
-                push(@{$c->req->args}, @parts);
-                return [ $action ], [ ];
+                my $args_attr = $action->attributes->{Args}->[0];
+
+                #    No best action currently
+                # OR This one matches with fewer parts left than the current best action,
+                #    And therefore is a better match
+                # OR No parts and this expects 0 
+                #    The current best action might also be Args(0),
+                #    but we couldn't chose between then anyway so we'll take the last seen
+
+                if (!$best_action                       ||
+                    @parts < @{$best_action->{parts}}   ||
+                    (!@parts && $args_attr eq 0)){
+                    $best_action = {
+                        actions => [ $action ],
+                        captures=> [],
+                        parts   => \@parts
+                    }
+                }
             }
         }
     }
+    return @$best_action{qw/actions captures parts/} if $best_action;
     return ();
 }
 
@@ -208,7 +258,7 @@ sub register {
 
     $action->attributes->{Chained} = [ $parent ];
 
-    my $children = ($self->{children_of}{$parent} ||= {});
+    my $children = ($self->_children_of->{$parent} ||= {});
 
     my @path_part = @{ $action->attributes->{PathPart} || [] };
 
@@ -218,13 +268,13 @@ sub register {
         $part = $path_part[0];
     } elsif (@path_part > 1) {
         Catalyst::Exception->throw(
-          "Multiple PathPart attributes not supported registering ${action}"
+          "Multiple PathPart attributes not supported registering " . $action->reverse()
         );
     }
 
     if ($part =~ m(^/)) {
         Catalyst::Exception->throw(
-          "Absolute parameters to PathPart not allowed registering ${action}"
+          "Absolute parameters to PathPart not allowed registering " . $action->reverse()
         );
     }
 
@@ -232,10 +282,10 @@ sub register {
 
     unshift(@{ $children->{$part} ||= [] }, $action);
 
-    ($self->{actions} ||= {})->{'/'.$action->reverse} = $action;
+    $self->_actions->{'/'.$action->reverse} = $action;
 
     unless ($action->attributes->{CaptureArgs}) {
-        unshift(@{ $self->{endpoints} ||= [] }, $action);
+        unshift(@{ $self->_endpoints }, $action);
     }
 
     return 1;
@@ -270,7 +320,7 @@ sub uri_for_action {
                 if (defined($pp->[0]) && length($pp->[0]));
         }
         $parent = $curr->attributes->{Chained}->[0];
-        $curr = $self->{actions}{$parent};
+        $curr = $self->_actions->{$parent};
     }
 
     return undef unless $parent eq '/'; # fail for dangling action
@@ -281,6 +331,8 @@ sub uri_for_action {
    
 }
 
+__PACKAGE__->meta->make_immutable;
+
 =head1 USAGE
 
 =head2 Introduction