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126 .IX Title "Catalyst::Controller::ActionRole 3"
127 .TH Catalyst::Controller::ActionRole 3 "2010-05-02" "perl v5.8.8" "User Contributed Perl Documentation"
128 .\" For nroff, turn off justification. Always turn off hyphenation; it makes
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133 Catalyst::Controller::ActionRole \- Apply roles to action instances
138 .IX Header "SYNOPSIS"
140 \& package MyApp::Controller::Foo;
142 \& use parent qw/Catalyst::Controller::ActionRole/;
144 \& sub bar : Local Does(\*(AqMoo\*(Aq) { ... }
147 .IX Header "DESCRIPTION"
148 This module allows to apply roles to the \f(CW\*(C`Catalyst::Action\*(C'\fRs for different
151 For that a \f(CW\*(C`Does\*(C'\fR attribute is provided. That attribute takes an argument,
152 that determines the role, which is going to be applied. If that argument is
153 prefixed with \f(CW\*(C`+\*(C'\fR, it is assumed to be the full name of the role. If it's
154 prefixed with \f(CW\*(C`~\*(C'\fR, the name of your application followed by
155 \&\f(CW\*(C`::ActionRole::\*(C'\fR is prepended. If it isn't prefixed with \f(CW\*(C`+\*(C'\fR or \f(CW\*(C`~\*(C'\fR,
156 the role name will be searched for in \f(CW@INC\fR according to the rules for
157 role prefix searching.
159 Additionally it's possible to to apply roles to \fBall\fR actions of a controller
160 without specifying the \f(CW\*(C`Does\*(C'\fR keyword in every action definition:
163 \& package MyApp::Controller::Bar
165 \& use parent qw/Catalyst::Controller::ActionRole/;
167 \& _\|_PACKAGE_\|_\->config(
168 \& action_roles => [\*(AqFoo\*(Aq, \*(Aq~Bar\*(Aq],
171 \& # has Catalyst::ActionRole::Foo and MyApp::ActionRole::Bar applied
172 \& # if MyApp::ActionRole::Foo exists and is loadable, it will take
173 \& # precedence over Catalyst::ActionRole::Foo
174 \& sub moo : Local { ... }
177 .IX Header "ATTRIBUTES"
178 .SS "_action_role_prefix"
179 .IX Subsection "_action_role_prefix"
180 This class attribute stores an array reference of role prefixes to search for
181 role names in if they aren't prefixed with \f(CW\*(C`+\*(C'\fR or \f(CW\*(C`~\*(C'\fR. It defaults to
182 \&\f(CW\*(C`[ \*(AqCatalyst::ActionRole::\*(Aq ]\*(C'\fR. See \*(L"role prefix searching\*(R".
184 .IX Subsection "_action_roles"
185 This attribute stores an array reference of role names that will be applied to
186 every action of this controller. It can be set by passing a \f(CW\*(C`action_roles\*(C'\fR
187 argument to the constructor. The same expansions as for \f(CW\*(C`Does\*(C'\fR will be
189 .SH "ROLE PREFIX SEARCHING"
190 .IX Header "ROLE PREFIX SEARCHING"
191 Roles specified with no prefix are looked up under a set of role prefixes. The
192 first prefix is always \f(CW\*(C`MyApp::ActionRole::\*(C'\fR (with \f(CW\*(C`MyApp\*(C'\fR replaced as
193 appropriate for your application); the following prefixes are taken from the
194 \&\f(CW\*(C`_action_role_prefix\*(C'\fR attribute.
198 \& Florian Ragwitz <rafl@debian.org>
199 \& Hans Dieter Pearcey <hdp@weftsoar.net>
201 .SH "COPYRIGHT AND LICENSE"
202 .IX Header "COPYRIGHT AND LICENSE"
203 This software is copyright (c) 2010 by Florian Ragwitz.
205 This is free software; you can redistribute it and/or modify it under
206 the same terms as the Perl 5 programming language system itself.