Module: Stannum::Entities::Constraints

Included in:
Stannum::Entity, Struct
Defined in:
lib/stannum/entities/constraints.rb

Overview

Methods for defining and accessing entity constraints.

Defined Under Namespace

Modules: AttributesMethods, ClassMethods

Class Method Summary collapse

Class Method Details

.apply(other) ⇒ Object

Generates a Contract for the class.

Creates a new Stannum::Contract and sets it as the class’s :Contract constant. If the superclass is an entity class (and already defines its own Contract, concatenates the superclass Contract into the class Contract).

Parameters:

  • other (Class) —

    the class to which attributes are added.



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# File 'lib/stannum/entities/constraints.rb', line 144

def apply(other)
  return unless other.is_a?(Class)

  return if entity_class?(other)

  contract = Stannum::Contract.new

  other.const_set(:Contract, contract)

  return unless entity_class?(other.superclass)

  contract.concat(other.superclass::Contract)
end