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Moose::Cookbook::Extending::Mooseish_MooseSugar - Acting like Moose.pm and providing sugar Moose-style

Authors

       •   Stevan Little <stevan@cpan.org>

       •   Dave Rolsky <autarch@urth.org>

       •   Jesse Luehrs <doy@cpan.org>

       •   Shawn M Moore <sartak@cpan.org>

       •   יובל קוג'מן (Yuval Kogman) <nothingmuch@woobling.org>

       •   Karen Etheridge <ether@cpan.org>

       •   Florian Ragwitz <rafl@debian.org>

       •   Hans Dieter Pearcey <hdp@cpan.org>

       •   Chris Prather <chris@prather.org>

       •   Matt S Trout <mstrout@cpan.org>

Conclusion

       Providing sugar functions can make your extension look much more Moose-ish. See Fey::ORM for a more
       extensive example.

Description

       This recipe expands on the use of Moose::Exporter we saw in Moose::Cookbook::Extending::ExtensionOverview
       and the class metaclass trait we saw in Moose::Cookbook::Meta::Table_MetaclassTrait. 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 Moose::Exporter docs for more details on its API.

Name

       Moose::Cookbook::Extending::Mooseish_MooseSugar - Acting like Moose.pm and providing sugar Moose-style

Synopsis

         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',
         );

Using Myapp::Mooseish

       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 { ... }

Version

       version 2.2207

See Also