Module: DataMapper::Property::Discriminator::Model

Defined in:
lib/dm-core/property/discriminator.rb

Instance Method Summary collapse

Instance Method Details

#inherited(model) ⇒ Object 



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# File 'lib/dm-core/property/discriminator.rb', line 15

def inherited(model)
  super  # setup self.descendants
  set_discriminator_scope_for(model)
end

#new(*args, &block) ⇒ Object 



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# File 'lib/dm-core/property/discriminator.rb', line 20

def new(*args, &block)
  if args.size == 1 && args.first.kind_of?(Hash)
    discriminator = properties(repository_name).discriminator

    if discriminator_value = args.first[discriminator.name]
      model = discriminator.typecast_to_primitive(discriminator_value)

      if model.kind_of?(Model) && !model.equal?(self)
        return model.new(*args, &block)
      end
    end
  end

  super
end