Moose::Cookbook::Extending::Mooseish_MooseSugar - Acting like Moose.pm and providing sugar Moose-style |
Moose::Cookbook::Extending::Mooseish_MooseSugar - Acting like Moose.pm and providing sugar Moose-style
version 2.1605
package MyApp::Mooseish;
use Moose::Exporter;
Moose::Exporter->setup_import_methods( with_meta => ['has_table'], class_metaroles => { class => ['MyApp::Meta::Class::Trait::HasTable'], }, );
sub has_table { my $meta = shift; $meta->table(shift); }
package MyApp::Meta::Class::Trait::HasTable; use Moose::Role;
has table => ( is => 'rw', isa => 'Str', );
This recipe expands on the use of the Moose::Exporter manpage we saw in
the Moose::Cookbook::Extending::ExtensionOverview manpage and the class metaclass trait
we saw in the Moose::Cookbook::Meta::Table_MetaclassTrait manpage. In this example we
provide our own metaclass trait, and we also export a has_table
sugar
function.
The with_meta
parameter specifies a list of functions that should
be wrapped before exporting. The wrapper simply ensures that the
importing package's appropriate metaclass object is the first argument
to the function, so we can do my $meta = shift;
.
See the the Moose::Exporter manpage docs for more details on its API.
The purpose of all this code is to provide a Moose-like interface. Here's what it would look like in actual use:
package MyApp::User;
use namespace::autoclean;
use Moose; use MyApp::Mooseish;
has_table 'User';
has 'username' => ( is => 'ro' ); has 'password' => ( is => 'ro' );
sub login { ... }
Providing sugar functions can make your extension look much more Moose-ish. See the Fey::ORM manpage for a more extensive example.
This software is copyright (c) 2006 by Infinity Interactive, Inc.
This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.
Moose::Cookbook::Extending::Mooseish_MooseSugar - Acting like Moose.pm and providing sugar Moose-style |