X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2FCatalyst%2FAction.pm;h=1649f35f725b2acb5da6d1b28fc18556a53b414e;hb=4dcffe42e2dc781d2942bd4935cb1d3c96ce6464;hp=ce587ac95b808879e852fadcbd68431bd31b3a75;hpb=b8f669f3c51dab87bfe9387dbaac0c07027abcfd;p=catagits%2FCatalyst-Runtime.git diff --git a/lib/Catalyst/Action.pm b/lib/Catalyst/Action.pm index ce587ac..1649f35 100644 --- a/lib/Catalyst/Action.pm +++ b/lib/Catalyst/Action.pm @@ -1,9 +1,33 @@ package Catalyst::Action; -use strict; -use base qw/Class::Accessor::Fast/; +=head1 NAME + +Catalyst::Action - Catalyst Action + +=head1 SYNOPSIS + +
+ +=head1 DESCRIPTION -__PACKAGE__->mk_accessors(qw/class namespace reverse attributes name code/); +This class represents a Catalyst Action. You can access the object for the +currently dispatched action via $c->action. See the L +for more information on how actions are dispatched. Actions are defined in +L subclasses. + +=cut + +use Moose; +use Scalar::Util 'looks_like_number'; +with 'MooseX::Emulate::Class::Accessor::Fast'; +use namespace::clean -except => 'meta'; + +has class => (is => 'rw'); +has namespace => (is => 'rw'); +has 'reverse' => (is => 'rw'); +has attributes => (is => 'rw'); +has name => (is => 'rw'); +has code => (is => 'rw'); use overload ( @@ -13,74 +37,94 @@ use overload ( # Codulate to execute to invoke the encapsulated action coderef '&{}' => sub { my $self = shift; sub { $self->execute(@_); }; }, + # Which action takes precedence + '<=>' => 'compare', + # Make general $stuff still work fallback => 1, ); -=head1 NAME -Catalyst::Action - Catalyst Action -=head1 SYNOPSIS +no warnings 'recursion'; -See L. +#__PACKAGE__->mk_accessors(qw/class namespace reverse attributes name code/); -=head1 DESCRIPTION +sub dispatch { # Execute ourselves against a context + my ( $self, $c ) = @_; + return $c->execute( $self->class, $self ); +} + +sub execute { + my $self = shift; + $self->code->(@_); +} + +sub match { + my ( $self, $c ) = @_; + #would it be unreasonable to store the number of arguments + #the action has as its own attribute? + #it would basically eliminate the code below. ehhh. small fish + return 1 unless exists $self->attributes->{Args}; + my $args = $self->attributes->{Args}[0]; + return 1 unless defined($args) && length($args); + return scalar( @{ $c->req->args } ) == $args; +} + +sub compare { + my ($a1, $a2) = @_; -This class represents a Catalyst Action. You can access the object for the -currently dispatched action via $c->action + my ($a1_args) = @{ $a1->attributes->{Args} || [] }; + my ($a2_args) = @{ $a2->attributes->{Args} || [] }; + + $_ = looks_like_number($_) ? $_ : ~0 + for $a1_args, $a2_args; + + return $a1_args <=> $a2_args; +} + +__PACKAGE__->meta->make_immutable; + +1; + +__END__ =head1 METHODS =head2 attributes The sub attributes that are set for this action, like Local, Path, Private -and so on. +and so on. This determines how the action is dispatched to. =head2 class -Returns the class name of this action +Returns the class name where this action is defined. =head2 code -Returns a code reference to this action +Returns a code reference to this action. =head2 dispatch( $c ) Dispatch this action against a context -=cut - -sub dispatch { # Execute ourselves against a context - my ( $self, $c ) = @_; - local $c->namespace = $self->namespace; - return $c->execute( $self->class, $self ); -} - =head2 execute( $controller, $c, @args ) Execute this action's coderef against a given controller with a given context and arguments -=cut - -sub execute { - my $self = shift; - $self->{code}->(@_); -} - =head2 match( $c ) Check Args attribute, and makes sure number of args matches the setting. +Always returns true if Args is omitted. -=cut +=head2 compare -sub match { - my ( $self, $c ) = @_; - return 1 unless exists $self->attributes->{Args}; - return scalar( @{ $c->req->args } ) == $self->attributes->{Args}[0]; -} +Compares 2 actions based on the value of the C attribute, with no C +having the highest precedence. + +C<< <=> >> is overloaded to use this method. =head2 namespace @@ -94,15 +138,17 @@ Returns the private path for this action. returns the sub name of this action. -=head1 AUTHOR +=head2 meta + +Provided by Moose -Matt S. Trout +=head1 AUTHORS + +Catalyst Contributors, see Catalyst.pm =head1 COPYRIGHT -This program is free software, you can redistribute it and/or modify it under +This library is free software. You can redistribute it and/or modify it under the same terms as Perl itself. =cut - -1;