NAME

       CGI::Application::Plugin::ActionDispatch - Perl extension

SYNOPSIS

         # In "WebApp.pm"...
         package WebApp;

         use base 'CGI::Application';
         use CGI::Application::Plugin::ActionDispatch;

         sub do_stuff : Path('do/stuff') { ... }
         sub do_more_stuff : Regex('^/do/more/stuff\/?$') { ... }
         sub do_something_else : Regex('do/something/else/(\w+)/(\d+)$') { ... }

DESCRIPTION

       CGI::Application::Plugin::ActionDispatch adds attribute based support for parsing the PATH_INFO of the
       incoming request. For those who are familiar with Catalyst. The interface works very similar.

       This plugin is plug and play and shouldn't interrupt the default behavior of CGI::Application.

CAVEATS

       Be aware though, this plugin will not likely work with other modules that use attributes.

       This module should work with mod_perl. It however has not be thoroughly tested as such. If you have used
       it with mod_perl please e-mail me with your experience.

METHODS

       action_args()
           If using capturing parentheses in a Regex action. The captured values are accessible using this
           method.

             sub addElement : Regex('add/(\d+)/(\d+)') {
               my $self = shift;
               my($column, $row) = $self->action_args();
               ...
             }

           The Path action will store everything after the matched path into the action args.

             # http://example.com/state/pa/philadelphia
             sub find_state_and_city : Path('state/') {
               my $self = shift;
               my($state, $city) = $self->action_args();
                   # $state == pa, $city == philadelphia
               ...
             }

ACTIONS

       Regex
           Regex action is used for regular expression matching against PATH_INFO. If capturing parentheses are
           used; the matched parameters are accesssible using the action_args() method.

             Regex('^blah/foo');

           The Regex action either matches or it doesn't. There are no secrets to it.

           It is important to note Regex action takes priority. It is assumed if a Path and Regex action both
           match. The Regex action will take priority, which may not always be the outcome of least suprise, for
           instance:

           # http://example.com/music/the_clash sub clash : Path('/music/the_clash') {} # This is an exact
           match, BUT.  sub the_class : Regex('/music/the_clash') {} # This takes priority. Beware.

       Path
           The Path action is basically a shortcut for a commonly used Regex action.

             # http://example.com/products/movies/2
             sub show_product : Path('products/') {
               my $self = shift;
               my($category, $id) = $self->action_args();
               ....
             }

           Is basically the same thing as.

             sub show_product : Regex('^/products/(\w+)/(\d+)') {
               my $self = shift;
               my($category, $id) = $self->action_args();
               ...
             }

           For those that care, the Path('products/') will be converted to the regular expression
           "^/products\/?(\/.*)$"; then split('/') is run on the captured value and stored in action_args().

       Runmode
           This action will take the method name and run a match on that.

           # http://example.com/foobar

           sub foobar : Runmode {}

       Default
           The default run mode if no match is found. Essentially the equivalent of the start_mode() method.

           sub default_mode : Default {}

EXAMPLE

       In CGI::Application module:

         package WebApp;

         use base 'CGI::Application';
         use CGI::Application::Plugin::ActionDispatch;
         use strict;

         sub setup {
           my $self = shift;
           self->mode_param('test_rm');
           $self->run_modes(
             basic_runmode => 'basic_runmode'
           );
         }

         # Regular runmodes should work.
         sub basic_runmode {
           my $self = shift
         }

       The product() runmode will match anything starting with "/products" in the PATH_INFO.

         # http://example.com/myapp.cgi/products/this/is/optional/and/stored/in/action_args/
         sub product : Path('products/') {
           my $self = shift;
           my($category, $product) = $self->action_args();
         }

       The music() runmode will match anything starting with "/products/music" in the PATH_INFO. The product()
       runmode also matches "/products/music". However since this runmode matches closer it takes priority over
       product().

         # http://example.com/myapp.cgi/products/music/product/
         sub music : Path('products/music/') {
           my $self = shift;
           my $product = $self->action_args();
           ...
         }

       This beatles() runmode will match ONLY "/product/music/beatles" or "/product/music/beatles/". Regex takes
       priority over Path so the previous runmodes which match this PATH_INFO are not run.

         # http://example.com/myapp.cgi/products/music/beatles/
         sub beatles : Regex('^/products/music/beatles\/?')  {
           my $self = shift;
           ...
         }

SEE ALSO

       CGI::Application, CGI::Application::Dispatch

       http://github.com/jaywhy/cgi-application-plugin-actiondispatch

AUTHOR

       Jason Yates, <jaywhy@gmail.com>

COPYRIGHT AND LICENSE

       Copyright (C) 2006-2008 by Jason Yates

       This library is free software; you can redistribute it and/or modify it under the same terms as Perl
       itself, either Perl version 5.8.7 or, at your option, any later version of Perl 5 you may have available.