X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2FCatalyst%2FComponent.pm;h=9926298d2fef92d0c59a8f41a9d4c927786a4b32;hb=7f3c573653fa9589cde849547116ccd915c12a68;hp=b38361e2daa9c4951070fa454a4ca0e1bde95cf2;hpb=baf6a3dbf99be93d8e8bd9b986a95ad1d81a61ca;p=catagits%2FCatalyst-Runtime.git diff --git a/lib/Catalyst/Component.pm b/lib/Catalyst/Component.pm index b38361e..9926298 100644 --- a/lib/Catalyst/Component.pm +++ b/lib/Catalyst/Component.pm @@ -3,8 +3,8 @@ package Catalyst::Component; use strict; use base qw/Class::Accessor::Fast Class::Data::Inheritable/; use NEXT; +use Catalyst::Utils; -__PACKAGE__->mk_classdata($_) for qw/_config _plugins/; =head1 NAME @@ -41,20 +41,17 @@ Catalyst::Component - Catalyst Component Base Class =head1 DESCRIPTION -This is the universal base class for Catalyst components +This is the universal base class for Catalyst components (Model/View/Controller). It provides you with a generic new() for instantiation through Catalyst's component loader with config() support and a process() method placeholder. -=head1 METHODS +=cut -=head2 new($c, $arguments) +__PACKAGE__->mk_classdata($_) for qw/_config _plugins/; -Called by COMPONENT to instantiate the component; should return an object -to be stored in the application's component hash. -=cut sub new { my ( $self, $c ) = @_; @@ -62,21 +59,10 @@ sub new { # Temporary fix, some components does not pass context to constructor my $arguments = ( ref( $_[-1] ) eq 'HASH' ) ? $_[-1] : {}; - return $self->NEXT::new( $self->merge_config_hashes( $self->config, $arguments ) ); + return $self->NEXT::new( + $self->merge_config_hashes( $self->config, $arguments ) ); } -=head2 COMPONENT($c, $arguments) - -If this method is present (as it is on all Catalyst::Component subclasses, -it is called by Catalyst during setup_components with the application class -as $c and any config entry on the application for this component (for example, -in the case of MyApp::Controller::Foo this would be -MyApp->config->{'Controller::Foo'}). The arguments are expected to be a hashref -and are merged with the __PACKAGE__->config hashref before calling ->new to -instantiate the component. - -=cut - sub COMPONENT { my ( $self, $c ) = @_; @@ -92,23 +78,13 @@ sub COMPONENT { } else { my $class = ref $self || $self; - my $new = $self->merge_config_hashes( $self->config, $arguments ); + my $new = $self->merge_config_hashes( + $self->config, $arguments ); return bless $new, $class; } } } -# remember to leave blank lines between the consecutive =head2's -# otherwise the pod tools don't recognize the subsequent =head2s - -=head2 $c->config - -=head2 $c->config($hashref) - -=head2 $c->config($key, $value, ...) - -=cut - sub config { my $self = shift; my $config = $self->_config; @@ -124,9 +100,11 @@ sub config { return $config; } -=head2 $c->process() +sub merge_config_hashes { + my ( $self, $lefthash, $righthash ) = @_; -=cut + return Catalyst::Utils::merge_hashes( $lefthash, $righthash ); +} sub process { @@ -134,31 +112,48 @@ sub process { . " did not override Catalyst::Component::process" ); } -=head2 $c->merge_hash_config( $hashref, $hashref ) +1; -Merges two hashes together recursively, giving right-hand precedence. +__END__ -=cut +=head1 METHODS -sub merge_config_hashes { - my ( $self, $lefthash, $righthash ) = @_; +=head2 new($c, $arguments) - my %merged = %$lefthash; - for my $key ( keys %$righthash ) { - my $right_ref = ( ref $righthash->{ $key } || '' ) eq 'HASH'; - my $left_ref = ( ( exists $lefthash->{ $key } && ref $lefthash->{ $key } ) || '' ) eq 'HASH'; - if( $right_ref and $left_ref ) { - $merged{ $key } = $self->merge_config_hashes( - $lefthash->{ $key }, $righthash->{ $key } - ); - } - else { - $merged{ $key } = $righthash->{ $key }; - } - } - - return \%merged; -} +Called by COMPONENT to instantiate the component; should return an object +to be stored in the application's component hash. + +=head2 COMPONENT($c, $arguments) + +If this method is present (as it is on all Catalyst::Component subclasses, +it is called by Catalyst during setup_components with the application class +as $c and any config entry on the application for this component (for example, +in the case of MyApp::Controller::Foo this would be +MyApp->config->{'Controller::Foo'}). The arguments are expected to be a +hashref and are merged with the __PACKAGE__->config hashref before calling +->new to instantiate the component. + +=head2 $c->config + +=head2 $c->config($hashref) + +=head2 $c->config($key, $value, ...) + +Accessor for this component's config hash. Config values can be set as +key value pair, or you can specify a hashref. In either case the keys +will be merged with any existing config settings. Each component in +a Catalyst application has it's own config hash. + +=head2 $c->process() + +This is the default method called on a Catalyst component in the dispatcher. +For instance, Views implement this action to render the response body +when you forward to them. The default is an abstract method. + +=head2 $c->merge_config_hashes( $hashref, $hashref ) + +Merges two hashes together recursively, giving right-hand precedence. +Alias for the method in L. =head1 OPTIONAL METHODS @@ -189,6 +184,4 @@ Matt S Trout, C This program is free software, you can redistribute it and/or modify it under the same terms as Perl itself. -=cut - -1; +=cut \ No newline at end of file