X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2FCatalyst%2FBase.pm;h=65f3120e4864da536822d3745875d771c9202287;hb=7a7ac23cbfaba1c66a454132313ceb7e885ab98b;hp=6bda121cc85a68260f1867cbaf775435d5788418;hpb=ba599d1c7a0c3219cd3825264c44d22362ed179a;p=catagits%2FCatalyst-Runtime.git diff --git a/lib/Catalyst/Base.pm b/lib/Catalyst/Base.pm index 6bda121..65f3120 100644 --- a/lib/Catalyst/Base.pm +++ b/lib/Catalyst/Base.pm @@ -1,167 +1,307 @@ package Catalyst::Base; use strict; -use base qw/Catalyst::AttrContainer Class::Accessor::Fast/; +use base qw/Catalyst::Component Catalyst::AttrContainer Class::Accessor::Fast/; use Catalyst::Exception; +use Catalyst::Utils; +use Class::Inspector; use NEXT; -__PACKAGE__->mk_classdata($_) for qw/_config/; +__PACKAGE__->mk_classdata($_) for qw/_dispatch_steps _action_class/; -sub _DISPATCH :Private { +__PACKAGE__->_dispatch_steps( [qw/_BEGIN _AUTO _ACTION/] ); +__PACKAGE__->_action_class('Catalyst::Action'); + +sub _DISPATCH : Private { my ( $self, $c ) = @_; - my @containers = $c->dispatcher->get_containers( $c->namespace ); - my %actions; - foreach my $name (qw/begin auto end/) { - - # Go down the container list representing each part of the - # current namespace inheritance tree, grabbing the actions hash - # of the ActionContainer object and looking for actions of the - # appropriate name registered to the namespace - - $actions{$name} = [ - map { $_->{$name} } - grep { exists $_->{$name} } - map { $_->actions } @containers - ]; + + foreach my $disp ( @{ $self->_dispatch_steps } ) { + last unless $c->forward($disp); } - # Errors break the normal flow and the end action is instantly run - my $error = 0; + $c->forward('_END'); +} - # Execute last begin - $c->state(1); - if ( my $begin = @{ $actions{begin} }[-1] ) { - $begin->execute($c); - $error++ if scalar @{ $c->error }; - } +sub _BEGIN : Private { + my ( $self, $c ) = @_; + my $begin = ( $c->get_actions( 'begin', $c->namespace ) )[-1]; + return 1 unless $begin; + $begin->dispatch( $c ); + return !@{ $c->error }; +} - # Execute the auto chain - my $autorun = 0; - for my $auto ( @{ $actions{auto} } ) { - last if $error; - $autorun++; - $auto->execute($c); - $error++ if scalar @{ $c->error }; - last unless $c->state; +sub _AUTO : Private { + my ( $self, $c ) = @_; + my @auto = $c->get_actions( 'auto', $c->namespace ); + foreach my $auto (@auto) { + $auto->dispatch( $c ); + return 0 unless $c->state; } + return 1; +} - # Execute the action or last default - my $mkay = $autorun ? $c->state ? 1 : 0 : 1; - if ($mkay) { - unless ($error) { - $c->action->execute($c); - $error++ if scalar @{ $c->error }; - } +sub _ACTION : Private { + my ( $self, $c ) = @_; + if ( ref $c->action + && $c->action->can('execute') + && $c->req->action ) + { + $c->action->dispatch( $c ); } + return !@{ $c->error }; +} - # Execute last end - if ( my $end = @{ $actions{end} }[-1] ) { - $end->execute($c); - } +sub _END : Private { + my ( $self, $c ) = @_; + my $end = ( $c->get_actions( 'end', $c->namespace ) )[-1]; + return 1 unless $end; + $end->dispatch( $c ); + return !@{ $c->error }; +} + +sub new { + my $self = shift; + my $app = $_[0]; + my $new = $self->NEXT::new(@_); + $new->{application} = $app; + return $new; } =head1 NAME -Catalyst::Base - Catalyst Universal Base Class +Catalyst::Base - Catalyst Base Class =head1 SYNOPSIS - # lib/MyApp/Model/Something.pm - package MyApp::Model::Something; +See L - use base 'Catalyst::Base'; +=head1 DESCRIPTION - __PACKAGE__->config( foo => 'bar' ); +Catalyst Base Class - sub test { - my $self = shift; - return $self->{foo}; - } +This is the base class for all Catalyst components. It also handles +dispatch of actions for controllers. - sub forward_to_me { - my ( $self, $c ) = @_; - $c->response->output( $self->{foo} ); - } - - 1; +=head1 METHODS - # Methods can be a request step - $c->forward(qw/MyApp::Model::Something forward_to_me/); +=head2 $self->action_for('name') - # Or just methods - print $c->comp('MyApp::Model::Something')->test; +Returns the Catalyst::Action object (if any) for a given method name in +this component. - print $c->comp('MyApp::Model::Something')->{foo}; +=cut -=head1 DESCRIPTION +sub action_for { + my ( $self, $name ) = @_; + my $app = ($self->isa('Catalyst') ? $self : $self->{application}); + return $app->dispatcher->get_action($name, $self->action_namespace); +} -This is the universal base class for Catalyst components -(Model/View/Controller). +=head2 $self->action_namespace($c) -It provides you with a generic new() for instantiation through Catalyst's -component loader with config() support and a process() method placeholder. +Returns the private namespace for actions in this component. Defaults to a value +from the controller name (for e.g. MyApp::Controller::Foo::Bar becomes +"foo/bar") or can be overriden from the "namespace" config key. -=head1 METHODS +=cut -=over 4 +sub action_namespace { + my ( $self, $c ) = @_; + unless ( $c ) { + $c = ($self->isa('Catalyst') ? $self : $self->{application}); + } + my $hash = (ref $self ? $self : $self->config); # hate app-is-class + return $hash->{namespace} if exists $hash->{namespace}; + return Catalyst::Utils::class2prefix( ref($self) || $self, + $c->config->{case_sensitive} ) + || ''; +} -=item new($c) +=head2 $self->path_prefix($c) + +Returns the default path prefix for :Local, :LocalRegex and relative :Path +actions in this component. Defaults to the action_namespace or can be +overriden from the "path" config key. =cut -sub new { +sub path_prefix { my ( $self, $c ) = @_; - - # Temporary fix, some components does not pass context to constructor - my $arguments = ( ref( $_[-1] ) eq 'HASH' ) ? $_[-1] : {}; - - return $self->NEXT::new( { %{ $self->config }, %{ $arguments } } ); + unless ( $c ) { + $c = ($self->isa('Catalyst') ? $self : $self->{application}); + } + my $hash = (ref $self ? $self : $self->config); # hate app-is-class + return $hash->{path} if exists $hash->{path}; + return shift->action_namespace(@_); } -# remember to leave blank lines between the consecutive =item's -# otherwise the pod tools don't recognize the subsequent =items +=head2 $self->register_actions($c) -=item $c->config +register all actions for this component based on a given context. -=item $c->config($hashref) +=cut -=item $c->config($key, $value, ...) +sub register_actions { + my ( $self, $c ) = @_; + my $class = ref $self || $self; + my $namespace = $self->action_namespace($c); + my %methods; + $methods{ $self->can($_) } = $_ + for @{ Class::Inspector->methods($class) || [] }; + + # Advanced inheritance support for plugins and the like + my @action_cache; + { + no strict 'refs'; + for my $isa ( @{"$class\::ISA"}, $class ) { + push @action_cache, @{ $isa->_action_cache } + if $isa->can('_action_cache'); + } + } -=cut + foreach my $cache (@action_cache) { + my $code = $cache->[0]; + my $method = delete $methods{$code}; # avoid dupe registers + next unless $method; + my $attrs = $self->_parse_attrs( $c, $method, @{ $cache->[1] } ); + if ( $attrs->{Private} && ( keys %$attrs > 1 ) ) { + $c->log->debug( 'Bad action definition "' + . join( ' ', @{ $cache->[1] } ) + . qq/" for "$class->$method"/ ) + if $c->debug; + next; + } + my $reverse = $namespace ? "$namespace/$method" : $method; + my $action = $self->create_action( + name => $method, + code => $code, + reverse => $reverse, + namespace => $namespace, + class => $class, + attributes => $attrs, + ); + + $c->dispatcher->register( $c, $action ); + } +} -sub config { +sub create_action { my $self = shift; - $self->_config( {} ) unless $self->_config; - if (@_) { - my $config = @_ > 1 ? {@_} : $_[0]; - while ( my ( $key, $val ) = each %$config ) { - $self->_config->{$key} = $val; + my %args = @_; + + my $class = (exists $args{attributes}{ActionClass} + ? $args{attributes}{ActionClass}[0] + : $self->_action_class); + + unless ( Class::Inspector->loaded($class) ) { + require Class::Inspector->filename($class); + } + + return $class->new( \%args ); +} + +sub _parse_attrs { + my ( $self, $c, $name, @attrs ) = @_; + + my %raw_attributes; + + foreach my $attr (@attrs) { + + # Parse out :Foo(bar) into Foo => bar etc (and arrayify) + + if ( my ( $key, $value ) = ( $attr =~ /^(.*?)(?:\(\s*(.+?)\s*\))?$/ ) ) + { + + if ( defined $value ) { + ( $value =~ s/^'(.*)'$/$1/ ) || ( $value =~ s/^"(.*)"/$1/ ); + } + push( @{ $raw_attributes{$key} }, $value ); + } + } + + my $hash = (ref $self ? $self : $self->config); # hate app-is-class + + if (exists $hash->{actions} || exists $hash->{action}) { + my $a = $hash->{actions} || $hash->{action}; + %raw_attributes = ((exists $a->{'*'} ? %{$a->{'*'}} : ()), + %raw_attributes, + (exists $a->{$name} ? %{$a->{$name}} : ())); + } + + my %final_attributes; + + foreach my $key (keys %raw_attributes) { + + my $raw = $raw_attributes{$key}; + + foreach my $value (ref($raw) ? @$raw : $raw) { + + my $meth = "_parse_${key}_attr"; + if ( $self->can($meth) ) { + ( $key, $value ) = $self->$meth( $c, $name, $value ); + } + push( @{ $final_attributes{$key} }, $value ); } } - return $self->_config; + + return \%final_attributes; } -=item $c->process() +sub _parse_Global_attr { + my ( $self, $c, $name, $value ) = @_; + return $self->_parse_Path_attr( $c, $name, "/$name" ); +} -=cut +sub _parse_Absolute_attr { shift->_parse_Global_attr(@_); } + +sub _parse_Local_attr { + my ( $self, $c, $name, $value ) = @_; + return $self->_parse_Path_attr( $c, $name, $name ); +} -sub process { +sub _parse_Relative_attr { shift->_parse_Local_attr(@_); } - Catalyst::Exception->throw( - message => ( ref $_[0] || $_[0] ) . " did not override Catalyst::Base::process" - ); +sub _parse_Path_attr { + my ( $self, $c, $name, $value ) = @_; + $value ||= ''; + if ( $value =~ m!^/! ) { + return ( 'Path', $value ); + } + elsif ( length $value ) { + return ( 'Path', join( '/', $self->path_prefix($c), $value ) ); + } + else { + return ( 'Path', $self->path_prefix($c) ); + } } -=item FETCH_CODE_ATTRIBUTES +sub _parse_Regex_attr { + my ( $self, $c, $name, $value ) = @_; + return ( 'Regex', $value ); +} -=item MODIFY_CODE_ATTRIBUTES +sub _parse_Regexp_attr { shift->_parse_Regex_attr(@_); } -=back +sub _parse_LocalRegex_attr { + my ( $self, $c, $name, $value ) = @_; + unless ( $value =~ s/^\^// ) { $value = "(?:.*?)$value"; } + return ( 'Regex', '^' . $self->path_prefix($c) . "/${value}" ); +} + +sub _parse_LocalRegexp_attr { shift->_parse_LocalRegex_attr(@_); } + +sub _parse_ActionClass_attr { + my ( $self, $c, $name, $value ) = @_; + unless ( $value =~ s/^\+// ) { + $value = join('::', $self->_action_class, $value ); + } + return ( 'ActionClass', $value ); +} =head1 SEE ALSO -L. +L, L. =head1 AUTHOR