Catalyst::Controller::BindLex man page on Pidora

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Catalyst::Controller::UserLContributed Perl DoCatalyst::Controller::BindLex(3)

NAME
       Catalyst::Controller::BindLex - Unmaintained, dangerous proof of
       concept

SYNOPSIS
	   package MyApp::Controller::Moose;
	   use base qw/Catalyst::Controller::BindLex/;

	   sub bar : Local {
	       my ( $self, $c ) = @_;

	       my $x : Stashed;
	       my %y : Stashed;

	       $x = 100;

	       do_something( $c->stash->{x} ); # 100

	       $c->forward( "gorch" );
	   }

	   sub gorch : Private {
	       my ( $self, $c ) = @_;
	       my $x : Stashed;

	       do_something( $x ); # still 100
	   }

	   sub counter : Local {
	       my ( $self, $c ) = @_;
	       my $count : Session;
	       $c->res->body( "request number " . ++$count );
	   }

WARNING
       Catalyst::Controller::BindLex does some fairly nasty magic - the
       attribute wrapping tricks are complex and will break if you declare the
       same lexical name twice in the same method, and the approach to get $c
       out of the call stack is hacky and fragile.

       It was designed as a PROOF OF CONCEPT ONLY and should not be considered
       for use in production. The authors no longer consider it a viable
       implementation plan and THIS MODULE IS NOT SUPPORTED AND WILL NOT BE
       MAINTAINED.

       If you really want to use it, please read the source code and be sure
       you understand it well enough to fix anything that goes wrong, then set

	   __PACKAGE__->config->{unsafe_bindlex_ok} = 1;

       in your controller class to suppress the startup warning.

DESCRIPTION
       This plugin lets you put your lexicals on the stash and elsewhere very
       easily.

       It uses some funky modules to get its job done:	PadWalker,
       Array::RefElem, Devel::Caller, Devel::LexAlias, and attributes. In some
       people's opinion this hurts this plugin's reputation ;-).

       If you use the same name for two variables with the same storage
       binding attribute they will be aliased to each other, so you can use
       this for reading as well as writing values across controller subs. This
       is almost like sharing your lexical scope.

WHY ISN'T THIS A PLUGIN?
       The way attributes are handled this can't be a plugin - the
       MODIFY_SCALAR_ATTRIBUTES methods and friends need to be in the class
       where the lexical is attributed, and this is typically a controller.

CONFIGURATION
       You can add attributes to the configaration by mapping attributes to
       handlers.

       Handlers are either strings of methods to be called on $c with no
       arguments, which are expected to return a hash reference (like "stash",
       "session", etc), or code references invoked with $c, a reference to the
       variable we're binding, and the name of the variable we're binding,
       also expected to return a hash reference.

DEFAULT ATTRIBUTES
       Some default attributes are pre-configured:

       Stash, Stashed
       Session, Sessioned
       Flash, Flashed
	   Bind the variable to a key in "stash", "session", or "flash"
	   respectively.

	   The latter two require the use of a session; see
	   Catalyst::Plugin::Session.

METHODS
   bindlex_default_config( )
   MODIFY_ARRAY_ATTRIBUTES( )
   MODIFY_HASH_ATTRIBUTES( )
   MODIFY_SCALAR_ATTRIBUTES( )
RECIPES
       Param
	   To get

	       my $username : Param;

	   add

	       __PACKAGE__->config->{bindlex}{Param} = sub { $_[0]->req->params };

AUTHORS
       Matt S. Trout

       Yuval Kogman

SEE ALSO
       PadWalker, Array::RefElem, Devel::Caller, Devel::LexAlias,
       Sub::Parameters

COPYRIGHT & LICENSE
	       Copyright (c) 2005 the aforementioned authors. All rights
	       reserved. This program is free software; you can redistribute
	       it and/or modify it under the same terms as Perl itself.

perl v5.14.1			  2008-05-27  Catalyst::Controller::BindLex(3)
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