Question

I have a simple association of header and item (1 : 1). when I say

class Header 
include DataMapper::Resource
  property :id, Serial
  property :somedata
  has 1, :item
end

class Item
include DataMapper::Resource
  property :id, Serial
  property :name, String
  attr_accessor: full_name, String
  belongs_to :user
end
Header.get(1).item

I would like to have a hook for item for doing some translation(say some initialization for full_name~updating the attr_accessor fields). This has to be generalized as I don’t want do a before method item on the header ..but hook method the item model. so that however the item is called the translation/initialization happens.

How can this be done?

Answer 1

I figured it myself. wanted to update in case it might be useful other people. just need define a method for that attribute.

def full_name
  "Mr"+full_name
end