1 package Catalyst::Action;
5 Catalyst::Action - Catalyst Action
9 <form action="[%c.uri_for(c.action)%]">
13 This class represents a Catalyst Action. You can access the object for the
14 currently dispatched action via $c->action. See the L<Catalyst::Dispatcher>
15 for more information on how actions are dispatched. Actions are defined in
16 L<Catalyst::Controller> subclasses.
21 use Scalar::Util 'looks_like_number';
22 with 'MooseX::Emulate::Class::Accessor::Fast';
23 use namespace::clean -except => 'meta';
25 has class => (is => 'rw');
26 has namespace => (is => 'rw');
27 has 'reverse' => (is => 'rw');
28 has attributes => (is => 'rw');
29 has name => (is => 'rw');
30 has code => (is => 'rw');
34 # Stringify to reverse for debug output etc.
35 q{""} => sub { shift->{reverse} },
37 # Codulate to execute to invoke the encapsulated action coderef
38 '&{}' => sub { my $self = shift; sub { $self->execute(@_); }; },
40 # Which action takes precedence
43 # Make general $stuff still work
50 no warnings 'recursion';
52 #__PACKAGE__->mk_accessors(qw/class namespace reverse attributes name code/);
54 sub dispatch { # Execute ourselves against a context
55 my ( $self, $c ) = @_;
56 return $c->execute( $self->class, $self );
65 my ( $self, $c ) = @_;
66 #would it be unreasonable to store the number of arguments
67 #the action has as its own attribute?
68 #it would basically eliminate the code below. ehhh. small fish
69 return 1 unless exists $self->attributes->{Args};
70 my $args = $self->attributes->{Args}[0];
71 return 1 unless defined($args) && length($args);
72 return scalar( @{ $c->req->args } ) == $args;
78 my ($a1_args) = @{ $a1->attributes->{Args} || [] };
79 my ($a2_args) = @{ $a2->attributes->{Args} || [] };
81 $_ = looks_like_number($_) ? $_ : ~0
82 for $a1_args, $a2_args;
84 return $a1_args <=> $a2_args;
87 __PACKAGE__->meta->make_immutable;
97 The sub attributes that are set for this action, like Local, Path, Private
98 and so on. This determines how the action is dispatched to.
102 Returns the class name where this action is defined.
106 Returns a code reference to this action.
108 =head2 dispatch( $c )
110 Dispatch this action against a context
112 =head2 execute( $controller, $c, @args )
114 Execute this action's coderef against a given controller with a given
115 context and arguments
119 Check Args attribute, and makes sure number of args matches the setting.
120 Always returns true if Args is omitted.
124 Compares 2 actions based on the value of the C<Args> attribute, with no C<Args>
125 having the highest precedence.
129 Returns the private namespace this action lives in.
133 Returns the private path for this action.
137 returns the sub name of this action.
145 Catalyst Contributors, see Catalyst.pm
149 This library is free software. You can redistribute it and/or modify it under
150 the same terms as Perl itself.