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1 | package Catalyst::Action; |
2 | |
3 | use strict; |
4 | use base qw/Class::Accessor::Fast/; |
5 | |
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6 | |
7 | =head1 NAME |
8 | |
9 | Catalyst::Action - Catalyst Action |
10 | |
11 | =head1 SYNOPSIS |
12 | |
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13 | <form action="[%c.uri_for(c.action.reverse)%]"> |
14 | |
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15 | =head1 DESCRIPTION |
16 | |
17 | This class represents a Catalyst Action. You can access the object for the |
18 | currently dispatched action via $c->action. See the L<Catalyst::Dispatcher> |
19 | for more information on how actions are dispatched. Actions are defined in |
20 | L<Catalyst::Controller> subclasses. |
21 | |
22 | =cut |
23 | |
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24 | __PACKAGE__->mk_accessors(qw/class namespace reverse attributes name code/); |
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25 | |
26 | use overload ( |
27 | |
28 | # Stringify to reverse for debug output etc. |
29 | q{""} => sub { shift->{reverse} }, |
30 | |
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31 | # Codulate to execute to invoke the encapsulated action coderef |
32 | '&{}' => sub { my $self = shift; sub { $self->execute(@_); }; }, |
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33 | |
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34 | # Make general $stuff still work |
35 | fallback => 1, |
36 | |
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37 | ); |
38 | |
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39 | sub dispatch { # Execute ourselves against a context |
40 | my ( $self, $c ) = @_; |
41 | local $c->namespace = $self->namespace; |
42 | return $c->execute( $self->class, $self ); |
43 | } |
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44 | |
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45 | sub execute { |
46 | my $self = shift; |
47 | $self->{code}->(@_); |
48 | } |
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49 | |
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50 | sub match { |
51 | my ( $self, $c ) = @_; |
52 | return 1 unless exists $self->attributes->{Args}; |
53 | my $args = $self->attributes->{Args}[0]; |
54 | return 1 unless defined($args) && length($args); |
55 | return scalar( @{ $c->req->args } ) == $args; |
56 | } |
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57 | |
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58 | 1; |
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59 | |
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60 | __END__ |
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61 | |
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62 | =head1 METHODS |
63 | |
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64 | =head2 attributes |
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65 | |
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66 | The sub attributes that are set for this action, like Local, Path, Private |
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67 | and so on. This determines how the action is dispatched to. |
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68 | |
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69 | =head2 class |
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70 | |
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71 | Returns the class name where this action is defined. |
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72 | |
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73 | =head2 code |
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74 | |
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75 | Returns a code reference to this action. |
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76 | |
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77 | =head2 dispatch( $c ) |
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78 | |
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79 | Dispatch this action against a context |
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80 | |
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81 | =head2 execute( $controller, $c, @args ) |
82 | |
83 | Execute this action's coderef against a given controller with a given |
84 | context and arguments |
85 | |
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86 | =head2 match( $c ) |
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87 | |
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88 | Check Args attribute, and makes sure number of args matches the setting. |
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89 | Always returns true if Args is omitted. |
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90 | |
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91 | =head2 namespace |
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92 | |
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93 | Returns the private namespace this action lives in. |
94 | |
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95 | =head2 reverse |
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96 | |
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97 | Returns the private path for this action. |
98 | |
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99 | =head2 name |
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100 | |
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101 | returns the sub name of this action. |
102 | |
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103 | =head1 AUTHOR |
104 | |
105 | Matt S. Trout |
106 | |
107 | =head1 COPYRIGHT |
108 | |
109 | This program is free software, you can redistribute it and/or modify it under |
110 | the same terms as Perl itself. |
111 | |
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112 | =cut |