class ActiveRecord::Store::HashAccessor

:nodoc:

def self.prepare(object, attribute) 

def self.prepare(object, attribute)
  object.public_send :"#{attribute}=", {} unless object.send(attribute)
end

def self.read(object, attribute, key)

:nodoc: 
def self.read(object, attribute, key)
  prepare(object, attribute)
  object.public_send(attribute)[key]
end

def self.write(object, attribute, key, value) 

def self.write(object, attribute, key, value)
  prepare(object, attribute)
  object.public_send(attribute)[key] = value if value != read(object, attribute, key)
end