fix __PACKAGE__->config->{foo} = 'bar' for subclassing

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

diff --git a/lib/Catalyst/Component.pm b/lib/Catalyst/Component.pm
index 62ab066..116aa9a 100644 (file)
--- a/lib/Catalyst/Component.pm
+++ b/lib/Catalyst/Component.pm
@@ -87,15 +87,29 @@ sub COMPONENT {
 
 sub config {
     my $self = shift;
-    my $config = $self->_config;
-    unless ($config) {
-        $self->_config( $config = {} );
-    }
+    my $config_sub = $self->can('_config');
+    my $config = $self->$config_sub() || {};
     if (@_) {
         my $newconfig = { %{@_ > 1 ? {@_} : $_[0]} };
         $self->_config(
             $self->merge_config_hashes( $config, $newconfig )
         );
+    } else {
+        # this is a bit of a kludge, required to make
+        # __PACKAGE__->config->{foo} = 'bar';
+        # work in a subclass. Calling the Class::Data::Inheritable setter
+        # will create a new _config method in the current class if it's
+        # currently inherited from the superclass. So, the can() call will
+        # return a different subref in that case and that means we know to
+        # copy and reset the value stored in the class data.
+
+        $self->_config( $config );
+
+        if ((my $config_sub_now = $self->can('_config')) ne $config_sub) {
+
+            $config = $self->merge_config_hashes( $config, {} );
+            $self->$config_sub_now( $config );
+        }
     }
     return $config;
 }