Module: SimpleValue::Model

Defined in:
lib/simple_value/model.rb

Instance Method Summary collapse

Instance Method Details

#value_object(attr_name, value_class, validate: false, value: :value) ⇒ Object



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# File 'lib/simple_value/model.rb', line 3

def value_object(attr_name, value_class, validate: false, value: :value)
  attr_reader "#{attr_name}_object"

  object_writer = "#{attr_name}_object=".to_sym
  instance_reader = "@#{attr_name}_object".to_sym

  define_method "#{attr_name}_object=" do |val|
    instance_variable_set instance_reader, val
    self[attr_name] = val.send value
  end

  define_method "#{attr_name}=" do |val|
    send object_writer, value_class.new(val)
  end

  after_initialize do
    send object_writer, value_class.new(self[attr_name])
  end

  return unless validate

  validates_with Validator, "#{attr_name}_object".to_sym => attr_name
end