ruby/datamapper: Refactor class methods to module
- by DeSchleib
Hello,
i've the following code and tried the whole day to refactor the class methods to a sperate module to share the functionality with all of my model classes.
Code (http://pastie.org/974847):
class Merchant
include DataMapper::Resource
property :id, Serial
[...]
class << self
@allowed_properties = [:id,:vendor_id, :identifier]
alias_method :old_get, :get
def get *args
[...]
end
def first_or_create_or_update attr_hash
[...]
end
end
end
I'd like to archive something like:
class Merchant
include DataMapper::Resource
include MyClassFunctions
[...]
end
module MyClassFunctions
def get [...]
def first_or_create_or_update[...]
end
=> Merchant.allowed_properties = [:id]
=> Merchant.get( :id=> 1 )
But unfortunately, my ruby skills are to bad. I read a lot of stuff (e.g. here) and now i'm even more confused. I stumbled over the following two points:
alias_method will fail, because it will dynamically defined in the DataMapper::Resource module.
How to get a class method allowed_properties due including a module?
What's the ruby way to go?
Many thanks in advance.
