+package Moose::Cookbook::Extending::Recipe4;
-=pod
+# ABSTRACT: Acting like Moose.pm and providing sugar Moose-style
+
+__END__
-=head1 NAME
-Moose::Cookbook::Extending::Recipe4 - Acting like Moose.pm and providing sugar Moose-style
+=pod
=head1 SYNOPSIS
package MyApp::Mooseish;
- use strict;
- use warnings;
-
- use Moose ();
use Moose::Exporter;
Moose::Exporter->setup_import_methods(
- with_caller => ['has_table'],
- also => 'Moose',
+ with_meta => ['has_table'],
+ class_metaroles => {
+ class => ['MyApp::Meta::Class::Trait::HasTable'],
+ },
);
- sub init_meta {
- shift;
- Moose->init_meta( @_, metaclass => 'MyApp::Meta::Class' );
- }
-
sub has_table {
- my $caller = shift;
- $caller->meta()->table(shift);
+ my $meta = shift;
+ $meta->table(shift);
}
+ package MyApp::Meta::Class::Trait::HasTable;
+ use Moose::Role;
+
+ has table => (
+ is => 'rw',
+ isa => 'Str',
+ );
+
=head1 DESCRIPTION
This recipe expands on the use of L<Moose::Exporter> we saw in
-L<Moose::Cookbook::Extending::Recipe1>. Instead of providing our own
-object base class, we provide our own metaclass class, and we also
-export a sugar subroutine C<has_table()>.
+L<Moose::Cookbook::Extending::Recipe1> and the class metaclass trait we saw in
+L<Moose::Cookbook::Meta::Table_MetaclassTrait>. In this example we provide our
+own metaclass trait, and we also export a C<has_table> sugar function.
-Given the above code, you can now replace all instances of C<use
-Moose> with C<use MyApp::Mooseish>. Similarly, C<no Moose> is now
-replaced with C<no MyApp::Mooseish>.
-
-The C<with_caller> parameter specifies a list of functions that should
+The C<with_meta> parameter specifies a list of functions that should
be wrapped before exporting. The wrapper simply ensures that the
-importing package name is the first argument to the function, so we
-can do C<S<my $caller = shift;>>.
+importing package's appropriate metaclass object is the first argument
+to the function, so we can do C<S<my $meta = shift;>>.
See the L<Moose::Exporter> docs for more details on its API.
package MyApp::User;
+ use namespace::autoclean;
+
+ use Moose;
use MyApp::Mooseish;
has_table 'User';
sub login { ... }
- no MyApp::Mooseish;
+=head1 CONCLUSION
+
+Providing sugar functions can make your extension look much more
+Moose-ish. See L<Fey::ORM> for a more extensive example.
+
+=begin testing
+
-All of the normal Moose sugar (C<has()>, C<with()>, etc) is available
-when you C<use MyApp::Mooseish>.
+{
+ package MyApp::User;
-=head1 AUTHOR
+ MyApp::Mooseish->import;
-Dave Rolsky E<lt>autarch@urth.orgE<gt>
+ has_table( 'User' );
-=head1 COPYRIGHT AND LICENSE
+ has( 'username' => ( is => 'ro' ) );
+ has( 'password' => ( is => 'ro' ) );
-Copyright 2006-2008 by Infinity Interactive, Inc.
+ sub login { }
+}
-L<http://www.iinteractive.com>
+isa_ok( MyApp::User->meta, 'MyApp::Meta::Class' );
+is( MyApp::User->meta->table, 'User',
+ 'MyApp::User->meta->table returns User' );
+ok( MyApp::User->can('username'),
+ 'MyApp::User has username method' );
-This library is free software; you can redistribute it and/or modify
-it under the same terms as Perl itself.
+=end testing
=pod