NAME¶
MooseX::AttributeHelpers - Extend your attribute interfaces (deprecated)
SYNOPSIS¶
package MyClass;
use Moose;
use MooseX::AttributeHelpers;
has 'mapping' => (
metaclass => 'Collection::Hash',
is => 'rw',
isa => 'HashRef[Str]',
default => sub { {} },
provides => {
exists => 'exists_in_mapping',
keys => 'ids_in_mapping',
get => 'get_mapping',
set => 'set_mapping',
},
curries => {
set => { set_quantity => [ 'quantity' ] }
}
);
# ...
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;
DESCRIPTION¶
This distribution is deprecated. The features it provides have been added
to the Moose core code as Moose::Meta::Attribute::Native. This
distribution should not be used by any new code.
While Moose attributes provide you with a way to name your accessors, readers,
writers, clearers and predicates, this library 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. Available meta classes are:
PARAMETERS¶
provides¶
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.
curries¶
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).
Another approach to curry a method provider is to supply a coderef instead of an
arrayref. The code ref takes $self, $body, and any additional arguments passed
to the final method.
# ...
curries => {
grep => {
times_with_day => sub {
my ($self, $body, $datetime) = @_;
$body->($self, sub { $_->ymd eq $datetime->ymd });
}
}
}
# ...
$obj->times_with_day(DateTime->now); # takes datetime argument, checks day
METHOD PROVIDERS¶
- Number
- Common numerical operations.
- String
- Common methods for string operations.
- Counter
- Methods for incrementing and decrementing a counter attribute.
- Bool
- Common methods for boolean values.
- Collection::Hash
- Common methods for hash references.
- Collection::ImmutableHash
- Common methods for inspecting hash references.
- Collection::Array
- Common methods for array references.
- Collection::List
- Common list methods for array references.
CAVEAT¶
This is an early release of this module. Right now it is in great need of
documentation and tests in the test suite. However, we have used this module
to great success at $work where it has been tested very thoroughly and
deployed into a major production site.
I plan on getting better docs and tests in the next few releases, but until then
please refer to the few tests we do have and feel free email and/or message me
on irc.perl.org if you have any questions.
TODO¶
We need tests and docs badly.
BUGS¶
All complex software has bugs lurking in it, and this module is no exception. If
you find a bug please either email me, or add the bug to cpan-RT.
AUTHOR¶
Stevan Little <stevan@iinteractive.com>
with contributions from:
Robert (rlb3) Boone
Paul (frodwith) Driver
Shawn (Sartak) Moore
Chris (perigrin) Prather
Robert (phaylon) Sedlacek
Tom (dec) Lanyon
Yuval Kogman
Jason May
Cory (gphat) Watson
Florian (rafl) Ragwitz
Evan Carroll
Jesse (doy) Luehrs
COPYRIGHT AND LICENSE¶
Copyright 2007-2009 by Infinity Interactive, Inc.
<
http://www.iinteractive.com>
This library is free software; you can redistribute it and/or modify it under
the same terms as Perl itself.