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mrkplt/business_object.rb

Last active August 29, 2015 14:12
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A sort of fast mock up of how I think you could implement business logic that would be separated from data layer and controller.
Raw
business_object.rb
class BusinessObject
class LambdaError < StandardError; end;
class NotImplementedError < StandardError; end;
def initialize(lambda_hash = {})
post_init(lambda_hash)
end
def perform
raise NotImplementedError, 'must implement perform.'
end
private
def post_init(lambda_hash)
@success = lambda_hash[:success]
@failure = lambda_hash[:failure]
end
def success
begin
@success.call
rescue NoMethodError
raise LambdaError, 'A lambda for success must be provided'
end
end
def failure
begin
@failure.call
rescue NoMethodError
raise LambdaError, 'A lambda for failure must be provided'
end
end
end
Raw
naive_implementation.rb
class SaveObjekt < BusinessObject
def initialize(objekt, lambdas)
@objekt = objekt
super(lambdas)
end
def perform
[email protected]? ? success : failure
end
end
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