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class Ship < ActiveRecord::Base
self.record_timestamps = false
belongs_to :pirate
belongs_to :update_only_pirate, class_name: "Pirate"
belongs_to :developer, dependent: :destroy
has_many :parts, class_name: "ShipPart"
has_many :treasures
accepts_nested_attributes_for :parts, allow_destroy: true
accepts_nested_attributes_for :pirate, allow_destroy: true, reject_if: proc(&:empty?)
accepts_nested_attributes_for :update_only_pirate, update_only: true
validates_presence_of :name
attr_accessor :cancel_save_from_callback
before_save :cancel_save_callback_method, if: :cancel_save_from_callback
def cancel_save_callback_method
throw(:abort)
end
end
class ShipWithoutNestedAttributes < ActiveRecord::Base
self.table_name = "ships"
has_many :prisoners, inverse_of: :ship, foreign_key: :ship_id
has_many :parts, class_name: "ShipPart", foreign_key: :ship_id
validates :name, presence: true
end
class Prisoner < ActiveRecord::Base
belongs_to :ship, autosave: true, class_name: "ShipWithoutNestedAttributes", inverse_of: :prisoners
end
class FamousShip < ActiveRecord::Base
self.table_name = "ships"
belongs_to :famous_pirate
validates_presence_of :name, on: :conference
end
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