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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.
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| 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 |
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| def SaveObjekt < BusinessObject | |
| def intialize(some_objekt, lambda_hash) | |
| @objekt = some_objekt | |
| super(lambda_hash) | |
| end | |
| def perform | |
| @objekt.action ? success : failure | |
| end | |
| end |
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