Catalyst::Component - Catalyst Component Base Class # lib/MyApp/Model/Something.pm package MyApp::Model::Something; use base 'Catalyst::Component'; __PACKAGE__->config( foo => 'bar' ); sub test { my $self = shift; return $self->{foo}; } sub forward_to_me { my ( $self, $c ) = @_; $c->response->output( $self->{foo} ); } 1; # Methods can be a request step $c->forward(qw/MyApp::Model::Something forward_to_me/); # Or just methods print $c->comp('MyApp::Model::Something')->test; print $c->comp('MyApp::Model::Something')->{foo}; 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.

new($c, $arguments)
Called by COMPONENT to instantiate the component; should return an object to be stored in the application's component hash.

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.

$c->config

$c->config($hashref)

$c->config($key, $value, ...)

$c->process()

$c->merge_config_hashes( $hashref, $hashref )
Merges two hashes together recursively, giving right-hand precedence.

ACCEPT_CONTEXT($c, @args)
Catalyst components are normally initalized during server startup, either as a Class or a Instance. However, some components require information about the current request. To do so, they can implement an ACCEPT_CONTEXT method. If this method is present, it is called during $c->comp/controller/model/view with the current $c and any additional args (e.g. $c->model('Foo', qw/bar baz/) would cause your MyApp::Model::Foo instance's ACCEPT_CONTEXT to be called with ($c, 'bar', 'baz')) and the return value of this method is returned to the calling code in the application rather than the component itself. Catalyst, Catalyst::Model, Catalyst::View, Catalyst::Controller. Sebastian Riedel, "sri@cpan.org" Marcus Ramberg, "mramberg@cpan.org" Matt S Trout, "mst@shadowcatsystems.co.uk" This program is free software, you can redistribute it and/or modify it under the same terms as Perl itself.