finished the scheme matching and uri_for updates

[catagits/Catalyst-Runtime.git] / lib / Catalyst / ActionChain.pm

diff --git a/lib/Catalyst/ActionChain.pm b/lib/Catalyst/ActionChain.pm
index 692065a..0b58602 100644 (file)
--- a/lib/Catalyst/ActionChain.pm
+++ b/lib/Catalyst/ActionChain.pm
@@ -1,12 +1,9 @@
 package Catalyst::ActionChain;
 
-use MRO::Compat;
-use mro 'c3';
 use Moose;
 extends qw(Catalyst::Action);
 
 has chain => (is => 'rw');
-
 no Moose;
 
 =head1 NAME
@@ -32,11 +29,19 @@ sub dispatch {
     my $last = pop(@chain);
     foreach my $action ( @chain ) {
         my @args;
-        if (my $cap = $action->attributes->{CaptureArgs}) {
-          @args = splice(@captures, 0, $cap->[0]);
+        if (my $cap = $action->number_of_captures) {
+          @args = splice(@captures, 0, $cap);
         }
         local $c->request->{arguments} = \@args;
         $action->dispatch( $c );
+
+        # break the chain if exception occurs in the middle of chain.  We
+        # check the global config flag 'abort_chain_on_error_fix', but this
+        # is now considered true by default, so unless someone explictly sets
+        # it to false we default it to true (if its not defined).
+        my $abort = defined($c->config->{abort_chain_on_error_fix}) ?
+          $c->config->{abort_chain_on_error_fix} : 1;
+        return if ($c->has_errors && $abort);
     }
     $last->dispatch( $c );
 }
@@ -47,6 +52,31 @@ sub from_chain {
     return $self->new({ %$final, chain => $actions });
 }
 
+sub number_of_captures {
+    my ( $self ) = @_;
+    my $chain = $self->chain;
+    my $captures = 0;
+
+    $captures += $_->number_of_captures for @$chain;
+    return $captures;
+}
+
+# the scheme defined at the end of the chain is the one we use
+# but warn if too many.
+
+sub scheme {
+  my $self = shift;
+  my @chain = @{ $self->chain };
+  my ($scheme, @more) = map {
+    exists $_->attributes->{Scheme} ? $_->attributes->{Scheme}[0] : ();
+  } reverse @chain;
+
+  warn "$self is a chain with two many Scheme attributes (only one is allowed)"
+    if @more;
+
+  return $scheme;
+}
+
 __PACKAGE__->meta->make_immutable;
 1;
 
@@ -69,17 +99,25 @@ actions in order.
 Takes a list of Catalyst::Action objects and constructs and returns a
 Catalyst::ActionChain object representing a chain of these actions
 
+=head2 number_of_captures
+
+Returns the total number of captures for the entire chain of actions.
+
+=head2 scheme
+
+Any defined scheme for the actionchain
+
 =head2 meta
 
 Provided by Moose
 
-=head1 AUTHOR
+=head1 AUTHORS
 
-Matt S. Trout
+Catalyst Contributors, see Catalyst.pm
 
 =head1 COPYRIGHT
 
-This program is free software, you can redistribute it and/or modify it under
+This library is free software. You can redistribute it and/or modify it under
 the same terms as Perl itself.
 
 =cut