use Config::Any;
use Data::Visitor::Callback;
use Catalyst::Utils ();
+use Devel::InnerPackage ();
+use Hash::Util qw/lock_hash/;
use MooseX::Types::LoadableClass qw/ LoadableClass /;
+use Moose::Util;
use Catalyst::IOC::BlockInjection;
+use Module::Pluggable::Object ();
use namespace::autoclean;
extends 'Bread::Board::Container';
has name => (
is => 'ro',
isa => 'Str',
- default => 'TestApp',
+ default => 'MyApp',
);
has sub_container_class => (
$self->build_controller_subcontainer
);
+ # FIXME - the config should be merged at this point
+ my $config = $self->resolve( service => 'config' );
+ my $default_view = $params->{default_view} || $config->{default_view};
+ my $default_model = $params->{default_model} || $config->{default_model};
+
$self->add_sub_container(
$self->build_view_subcontainer(
- default_component => $params->{default_view},
+ default_component => $default_view,
)
);
$self->add_sub_container(
$self->build_model_subcontainer(
- default_component => $params->{default_model},
+ default_component => $default_model,
)
);
}
my $self = shift;
return Bread::Board::BlockInjection->new(
+ lifecycle => 'Singleton',
name => 'extensions',
block => sub {
return \@{Config::Any->extensions};
my $self = shift;
return Bread::Board::BlockInjection->new(
+ lifecycle => 'Singleton',
name => 'prefix',
block => sub {
return Catalyst::Utils::appprefix( shift->param('name') );
my $self = shift;
return Bread::Board::BlockInjection->new(
+ lifecycle => 'Singleton',
name => 'path',
block => sub {
my $s = shift;
my $self = shift;
return Bread::Board::BlockInjection->new(
+ lifecycle => 'Singleton',
name => 'config',
block => sub {
my $s = shift;
my $self = shift;
return Bread::Board::BlockInjection->new(
+ lifecycle => 'Singleton',
name => 'raw_config',
block => sub {
my $s = shift;
my $self = shift;
return Bread::Board::BlockInjection->new(
+ lifecycle => 'Singleton',
name => 'global_files',
block => sub {
my $s = shift;
my $self = shift;
return Bread::Board::BlockInjection->new(
+ lifecycle => 'Singleton',
name => 'local_files',
block => sub {
my $s = shift;
my $self = shift;
return Bread::Board::BlockInjection->new(
+ lifecycle => 'Singleton',
name => 'global_config',
block => sub {
my $s = shift;
my $self = shift;
return Bread::Board::BlockInjection->new(
+ lifecycle => 'Singleton',
name => 'local_config',
block => sub {
my $s = shift;
my $self = shift;
return Bread::Board::BlockInjection->new(
+ lifecycle => 'Singleton',
name => 'config_path',
block => sub {
my $s = shift;
my $self = shift;
return Bread::Board::BlockInjection->new(
+ lifecycle => 'Singleton',
name => 'config_local_suffix',
block => sub {
my $s = shift;
return $sub_container->get_component( $default, $c, @args )
if $default && $sub_container->has_service( $default );
+ # FIXME - should I be calling $c->log->warn here?
# this is never a controller, so this is safe
$c->log->warn( "Calling \$c->$sub_container_name() is not supported unless you specify one of:" );
$c->log->warn( "* \$c->config(default_$sub_container_name => 'the name of the default $sub_container_name to use')" );
return;
}
+sub find_component {
+ my ( $self, $component, $c, @args ) = @_;
+ my ( $type, $name ) = _get_component_type_name($component);
+ my @result;
+
+ return $self->get_component_from_sub_container(
+ $type, $name, $c, @args
+ ) if $type;
+
+ my $query = ref $component
+ ? $component
+ : qr{^$component$}
+ ;
+
+ for my $subcontainer_name (qw/model view controller/) {
+ my $subcontainer = $self->get_sub_container( $subcontainer_name );
+ my @components = $subcontainer->get_service_list;
+ @result = grep { m{$component} } @components;
+
+ return map { $subcontainer->get_component( $_, $c, @args ) } @result
+ if @result;
+ }
+
+ # FIXME - I guess I shouldn't be calling $c->components here
+ # one last search for things like $c->comp(qr/::M::/)
+ @result = $self->find_component_regexp(
+ $c->components, $component, $c, @args
+ ) if !@result and ref $component;
+
+ # it expects an empty list on failed searches
+ return @result;
+}
+
+sub find_component_regexp {
+ my ( $self, $components, $component, @args ) = @_;
+ my @result;
+
+ my @components = grep { m{$component} } keys %{ $components };
+
+ for (@components) {
+ my ($type, $name) = _get_component_type_name($_);
+
+ push @result, $self->get_component_from_sub_container(
+ $type, $name, @args
+ ) if $type;
+ }
+
+ return @result;
+}
+
+# FIXME sorry for the name again :)
+sub get_components_types {
+ my ( $self ) = @_;
+ my @comps_types;
+
+ for my $sub_container_name (qw/model view controller/) {
+ my $sub_container = $self->get_sub_container($sub_container_name);
+ for my $service ( $sub_container->get_service_list ) {
+ my $comp = $self->resolve(service => $service);
+ my $compname = ref $comp || $comp;
+ my $type = ref $comp ? 'instance' : 'class';
+ push @comps_types, [ $compname, $type ];
+ }
+ }
+
+ return @comps_types;
+}
+
+sub get_all_components {
+ my $self = shift;
+ my %components;
+
+ my $containers = {
+ map { $_ => $self->get_sub_container($_) } qw(model view controller)
+ };
+
+ for my $container (keys %$containers) {
+ for my $component ($containers->{$container}->get_service_list) {
+ my $comp = $containers->{$container}->resolve(
+ service => $component
+ );
+ my $comp_name = ref $comp || $comp;
+ $components{$comp_name} = $comp;
+ }
+ }
+
+ return lock_hash %components;
+}
+
+sub add_component {
+ my ( $self, $component, $class ) = @_;
+ my ( $type, $name ) = _get_component_type_name($component);
+
+ return unless $type;
+
+ $self->get_sub_container($type)->add_service(
+ Catalyst::IOC::BlockInjection->new(
+ lifecycle => 'Singleton', # FIXME?
+ name => $name,
+ block => sub { $self->setup_component( $component, $class ) },
+ )
+ );
+}
+
+# FIXME: should this sub exist?
+# should it be moved to Catalyst::Utils,
+# or replaced by something already existing there?
+sub _get_component_type_name {
+ my ( $component ) = @_;
+
+ my @parts = split /::/, $component;
+
+ while (my $type = shift @parts) {
+ return ('controller', join '::', @parts)
+ if $type =~ /^(c|controller)$/i;
+
+ return ('model', join '::', @parts)
+ if $type =~ /^(m|model)$/i;
+
+ return ('view', join '::', @parts)
+ if $type =~ /^(v|view)$/i;
+ }
+
+ return (undef, $component);
+}
+
+# FIXME ugly and temporary
+# Just moved it here the way it was, so we can work on it here in the container
+sub setup_component {
+ my ( $self, $component, $class ) = @_;
+
+ unless ( $component->can( 'COMPONENT' ) ) {
+ return $component;
+ }
+
+ # FIXME I know this isn't the "Dependency Injection" way of doing things,
+ # its just temporary
+ my $suffix = Catalyst::Utils::class2classsuffix( $component );
+ my $config = $self->resolve(service => 'config')->{ $suffix } || {};
+
+ # Stash catalyst_component_name in the config here, so that custom COMPONENT
+ # methods also pass it. local to avoid pointlessly shitting in config
+ # for the debug screen, as $component is already the key name.
+ local $config->{catalyst_component_name} = $component;
+
+ my $instance = eval { $component->COMPONENT( $class, $config ); };
+
+ if ( my $error = $@ ) {
+ chomp $error;
+ Catalyst::Exception->throw(
+ message => qq/Couldn't instantiate component "$component", "$error"/
+ );
+ }
+ elsif (!blessed $instance) {
+ my $metaclass = Moose::Util::find_meta($component);
+ my $method_meta = $metaclass->find_method_by_name('COMPONENT');
+ my $component_method_from = $method_meta->associated_metaclass->name;
+ my $value = defined($instance) ? $instance : 'undef';
+ Catalyst::Exception->throw(
+ message =>
+ qq/Couldn't instantiate component "$component", COMPONENT() method (from $component_method_from) didn't return an object-like value (value was $value)./
+ );
+ }
+
+ return $instance;
+}
+
+sub expand_component_module {
+ my ( $class, $module ) = @_;
+ return Devel::InnerPackage::list_packages( $module );
+}
+
+sub locate_components {
+ my ( $self, $class, $config ) = @_;
+
+ my @paths = qw( ::Controller ::C ::Model ::M ::View ::V );
+
+ my $locator = Module::Pluggable::Object->new(
+ search_path => [ map { s/^(?=::)/$class/; $_; } @paths ],
+ %$config
+ );
+
+ # XXX think about ditching this sort entirely
+ my @comps = sort { length $a <=> length $b } $locator->plugins;
+
+ return @comps;
+}
+
+sub setup_components {
+ my ( $self, $class ) = @_;
+
+ # FIXME - should I get config as an argument, and throw the exception in
+ # Catalyst.pm?
+ my $config = $self->resolve(service => 'config')->{ setup_components };
+
+ Catalyst::Exception->throw(
+ qq{You are using search_extra config option. That option is\n} .
+ qq{deprecated, please refer to the documentation for\n} .
+ qq{other ways of achieving the same results.\n}
+ ) if delete $config->{ search_extra };
+
+ my @comps = $self->locate_components( $class, $config );
+ my %comps = map { $_ => 1 } @comps;
+
+ my $deprecatedcatalyst_component_names = grep { /::[CMV]::/ } @comps;
+ $class->log->warn(qq{Your application is using the deprecated ::[MVC]:: type naming scheme.\n}.
+ qq{Please switch your class names to ::Model::, ::View:: and ::Controller: as appropriate.\n}
+ ) if $deprecatedcatalyst_component_names;
+
+ for my $component ( @comps ) {
+
+ # We pass ignore_loaded here so that overlay files for (e.g.)
+ # Model::DBI::Schema sub-classes are loaded - if it's in @comps
+ # we know M::P::O found a file on disk so this is safe
+
+ Catalyst::Utils::ensure_class_loaded( $component, { ignore_loaded => 1 } );
+ }
+
+ for my $component (@comps) {
+ $self->add_component( $component, $class );
+ # FIXME - $instance->expand_modules() is broken
+ my @expanded_components = $self->expand_component_module( $component );
+ for my $component (@expanded_components) {
+ next if $comps{$component};
+
+ # FIXME - Why is it inside the for loop? It makes no sense
+ $deprecatedcatalyst_component_names = grep { /::[CMV]::/ } @expanded_components;
+
+ # FIXME - should I be calling warn here?
+ $class->log->warn(qq{Your application is using the deprecated ::[MVC]:: type naming scheme.\n}.
+ qq{Please switch your class names to ::Model::, ::View:: and ::Controller: as appropriate.\n}
+ ) if $deprecatedcatalyst_component_names;
+
+ $self->add_component( $component, $class );
+ }
+ }
+
+ $self->get_sub_container('model')->make_single_default;
+ $self->get_sub_container('view')->make_single_default;
+}
+
1;
__END__
Catalyst::Container - IOC for Catalyst components
+=head1 SYNOPSIS
+
+=head1 DESCRIPTION
+
=head1 METHODS
+=head1 Containers
+
=head2 build_model_subcontainer
+Container that stores all models.
+
=head2 build_view_subcontainer
+Container that stores all views.
+
=head2 build_controller_subcontainer
+Container that stores all controllers.
+
+=head1 Services
+
=head2 build_name_service
+Name of the application.
+
=head2 build_driver_service
+Config options passed directly to the driver being used.
+
=head2 build_file_service
+?
+
=head2 build_substitutions_service
+Executes all the substitutions in config. See L</_config_substitutions> method.
+
=head2 build_extensions_service
=head2 build_prefix_service
=head2 build_config_local_suffix_service
-=head2 get_component_from_sub_container
+Determines the suffix of files used to override the main config. By default
+this value is C<local>, which will load C<myapp_local.conf>. The suffix can
+be specified in the following order of preference:
+
+=over
+
+=item * C<$ENV{ MYAPP_CONFIG_LOCAL_SUFFIX }>
+
+=item * C<$ENV{ CATALYST_CONFIG_LOCAL_SUFFIX }>
+
+=back
+
+The first one of these values found replaces the default of C<local> in the
+name of the local config file to be loaded.
+
+For example, if C< $ENV{ MYAPP_CONFIG_LOCAL_SUFFIX }> is set to C<testing>,
+ConfigLoader will try and load C<myapp_testing.conf> instead of
+C<myapp_local.conf>.
+
+=head2 get_component_from_sub_container($sub_container, $name, $c, @args)
+
+Looks for components in a given subcontainer (such as controller, model or view), and returns the searched component. If $name is undef, it returns the default component (such as default_view, if $sub_container is 'view'). If $name is a regexp, it returns an array of matching components. Otherwise, it looks for the component with name $name.
+
+=head2 get_components_types
+
+=head2 get_all_components
+
+Fetches all the components, in each of the sub_containers model, view and controller, and returns a readonly hash. The keys are the class names, and the values are the blessed objects. This is what is returned by $c->components.
+
+=head2 add_component
+
+Adds a component to the appropriate subcontainer. The subcontainer is guessed by the component name given.
+
+=head2 find_component
+
+Searches for components in all containers. If $component is the full class name, the subcontainer is guessed, and it gets the searched component in there. Otherwise, it looks for a component with that name in all subcontainers. If $component is a regexp, it calls the method below, find_component_regexp, and matches all components against that regexp.
+
+=head2 find_component_regexp
+
+Finds components that match a given regexp. Used internally, by find_component.
+
+=head2 setup_component
=head2 _fix_syntax
=head2 _config_substitutions
+This method substitutes macros found with calls to a function. There are a
+number of default macros:
+
+=over
+
+=item * C<__HOME__> - replaced with C<$c-E<gt>path_to('')>
+
+=item * C<__ENV(foo)__> - replaced with the value of C<$ENV{foo}>
+
+=item * C<__path_to(foo/bar)__> - replaced with C<$c-E<gt>path_to('foo/bar')>
+
+=item * C<__literal(__FOO__)__> - leaves __FOO__ alone (allows you to use
+C<__DATA__> as a config value, for example)
+
+=back
+
+The parameter list is split on comma (C<,>). You can override this method to
+do your own string munging, or you can define your own macros in
+C<MyApp-E<gt>config-E<gt>{ 'Plugin::ConfigLoader' }-E<gt>{ substitutions }>.
+Example:
+
+ MyApp->config->{ 'Plugin::ConfigLoader' }->{ substitutions } = {
+ baz => sub { my $c = shift; qux( @_ ); }
+ }
+
+The above will respond to C<__baz(x,y)__> in config strings.
+
+=head2 $c->expand_component_module( $component, $setup_component_config )
+
+Components found by C<locate_components> will be passed to this method, which
+is expected to return a list of component (package) names to be set up.
+
+=head2 locate_components( $setup_component_config )
+
+This method is meant to provide a list of component modules that should be
+setup for the application. By default, it will use L<Module::Pluggable>.
+
+Specify a C<setup_components> config option to pass additional options directly
+to L<Module::Pluggable>.
+
=head1 AUTHORS
Catalyst Contributors, see Catalyst.pm
projects / catagits/Catalyst-Runtime.git / blobdiff