MouseX::AttributeHelpers - Extend your attribute interfaces
package MyClass; use Mouse; use MouseX::AttributeHelpers; has 'mapping' => ( metaclass => 'Collection::Hash', is => 'rw', isa => 'HashRef', default => sub { +{} }, provides => { exists => 'exists_in_mapping', keys => 'ids_in_mapping', get => 'get_mapping', set => 'set_mapping', }, ); package main; my $obj = MyClass->new; $obj->set_quantity(10); # quantity => 10 $obj->set_mapping(4, 'foo'); # 4 => 'foo' $obj->set_mapping(5, 'bar'); # 5 => 'bar' $obj->set_mapping(6, 'baz'); # 6 => 'baz' # prints 'bar' print $obj->get_mapping(5) if $obj->exists_in_mapping(5); # prints '4, 5, 6' print join ', ', $obj->ids_in_mapping;
MouseX::AttributeHelpers provides commonly used attribute helper methods for more specific types of data.
As seen in the "SYNOPSIS", you specify the extension via the metaclass parameter.
metaclass
This points to a hashref that uses provider for the keys and method for the values. The method will be added to the object itself and do what you want.
provider
method
This points to a hashref that uses provider for the keys and has two choices for the value:
You can supply { method => \@args } for the values. The method will be added to the object itself (always using @args as the beginning arguments).
{ method => \@args }
@args
Another approach to curry a method provider is to supply a coderef instead of an arrayref. The code ref takes $self, $body, and any additional arguments passed to the final method.
$self
$body
Methods for incrementing and decrementing a counter attribute.
Common numerical operations.
Common methods for string values.
Common methods for boolean values.
Common list methods for array references.
Common methods for array references.
Common methods for hash references.
Common additional methods for hash references.
Methods for incrementing and decrementing a value of collection.
NAKAGAWA Masaki <masaki@cpan.org>
"AUTHOR" in MooseX::AttributeHelpers
This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
Mouse
MouseX::AttributeHelpers::Counter, MouseX::AttributeHelpers::Number, MouseX::AttributeHelpers::String, MouseX::AttributeHelpers::Bool, MouseX::AttributeHelpers::Collection::List, MouseX::AttributeHelpers::Collection::Array, MouseX::AttributeHelpers::Collection::ImmutableHash, MouseX::AttributeHelpers::Collection::Hash, MouseX::AttributeHelpers::Collection::Bag
MooseX::AttributeHelpers
To install MouseX::AttributeHelpers, copy and paste the appropriate command in to your terminal.
cpanm
cpanm MouseX::AttributeHelpers
CPAN shell
perl -MCPAN -e shell install MouseX::AttributeHelpers
For more information on module installation, please visit the detailed CPAN module installation guide.