tech_spec.rb

class TechSpec < ActiveRecord::Base
  validates :boat_id, presence: true
  validates :tech_spec_name_id, presence: true, uniqueness: { scope: :boat_id }

  belongs_to :boat
  belongs_to :tech_spec_name

  acts_as_list scope: :boat

  def as_json(options = {})
    super(options.merge(methods: [self.name]))
  end

  def name
    self.tech_spec_name.name
  end

  def name=(value)
    tmp_tech_spec_name = TechSpecName.find_or_create(name: value)
    tmp_tech_spec_name.save
    self.tech_spec_name = tmp_tech_spec_name
  end
end