I have 10 models and 3 of them need some additional custom methods which happen to be:
has_staged_version?
apply_staged_version
discard_staged_version
I want to define these methods once.
I could create a custom subclass of ActiveRecord:Base, define the methods there, and have my 3 models inherit from it. But is there a more "Ruby/Rails" way to achieve this?
Cheers
Use a module as a mixin.
See http://www.juixe.com/techknow/index.php/2006/06/15/mixins-in-ruby/
e.g.
in /lib have
module StagedVersionStuff
def has_staged_version?
end
def apply_staged_version
end
def discard_staged_version
end
end
and then in the models you want to have these methods you have
include StagedVersionStuff
after the Class declaration
You could create a module and have your classes include it:
module StagedVersionMethods
def has_staged_version?
end
def apply_staged_version
end
def discard_staged_version
end
end
Model.send :include, StagedVersionMethods
What do your classes do? The choice of whether to use a subclass or module is more a question of semantics on the basis of what the classes themselves are.
