1 package Catalyst::IOC::ConstructorInjection;
3 use Catalyst::Utils ();
4 extends 'Bread::Board::ConstructorInjection';
6 with 'Bread::Board::Service::WithClass',
7 'Bread::Board::Service::WithParameters',
8 'Bread::Board::Service::WithDependencies';
16 sub _build_config_key { Catalyst::Utils::class2classsuffix( shift->class ) }
18 sub _build_constructor_name { 'COMPONENT' }
23 my $constructor = $self->constructor_name;
24 my $component = $self->class;
25 my $config = $self->param('config')->{ $self->config_key } || {};
26 # FIXME - Is depending on the application name to pass into constructors here a good idea?
27 # This makes app/ctx split harder I think.. Need to think more here, but I think
28 # we want to pass the application in as a parameter when building the service
29 # rather than depending on the app name, so that later, when the app becomes an instance
30 # then it'll get passed in, and components can stash themselves 'per app instance'
31 my $app_name = $self->param('application_name');
33 # Stash catalyst_component_name in the config here, so that custom COMPONENT
34 # methods also pass it. local to avoid pointlessly shitting in config
35 # for the debug screen, as $component is already the key name.
36 local $config->{catalyst_component_name} = $component;
38 unless ( $component->can( $constructor ) ) {
39 # FIXME - make some deprecation warnings
43 my $instance = eval { $component->$constructor( $app_name, $config ) };
45 if ( my $error = $@ ) {
47 Catalyst::Exception->throw(
48 message => qq/Couldn't instantiate component "$component", "$error"/
51 elsif (!blessed $instance) {
52 my $metaclass = Moose::Util::find_meta($component);
53 my $method_meta = $metaclass->find_method_by_name($constructor);
54 my $component_method_from = $method_meta->associated_metaclass->name;
55 my $value = defined($instance) ? $instance : 'undef';
56 Catalyst::Exception->throw(
58 qq/Couldn't instantiate component "$component", $constructor() method (from $component_method_from) didn't return an object-like value (value was $value)./
65 __PACKAGE__->meta->make_immutable;
75 Catalyst::IOC::ConstructorInjection
83 Catalyst Contributors, see Catalyst.pm
87 This library is free software. You can redistribute it and/or modify it under
88 the same terms as Perl itself.