레일즈에서 동시에 두 모델의 has_one에 새로운 레코드를 생성하는 방법은 무엇입니까?

Question

한 모델에서 동일한 모델에 속한 두 모델에 대한 새 레코드를 만들어야합니다.

이

내가 제출할 때이 그럼 난 항상이 줄에이 오류

undefined method `build_promotion_thai' for #<PromotionEng:0x007f9fdbcb0250> Did you mean? build_promotion 

에게있어 양식 내 컨트롤러 방법

def create 
    promotion = Promotion.new 
    promotion.build_promotion_eng(promotion_eng_params).build_promotion_thai(promotion_thai_params) 

    if promotion.save 
     flash[:success] = 'Success Created Promotion' 
     redirect_to admins_promotions_path 
    else 
     errors_message = promotion.errors.full_messages.join(', ') 

     redirect_to admins_promotion_new_path, :flash => { :error => errors_message } 
    end 
    end 

내 모델

class Promotion < ApplicationRecord 
    has_one :promotion_thai ,dependent: :destroy 
    has_one :promotion_eng ,dependent: :destroy 
end 

class PromotionThai < ApplicationRecord 
    belongs_to :promotion 

    mount_uploader :long_banner, PromotionImageUploader 
    mount_uploader :square_banner, PromotionImageUploader 
    mount_uploader :details_image, PromotionImageUploader 

    validates :promotion_id, presence: true 
    validates :title, presence: true 
    validates :description, presence: true 

    #validates :long_banner, presence: true 
    #validates :square_banner, presence: true 

end 

class PromotionEng < ApplicationRecord 
    belongs_to :promotion 

    mount_uploader :long_banner, PromotionImageUploader 
    mount_uploader :square_banner, PromotionImageUploader 
    mount_uploader :details_image, PromotionImageUploader 

    validates :promotion_id, presence: true 
    validates :title, presence: true 
    validates :description, presence: true 

    validates :long_banner, presence: true 
    validates :square_banner, presence: true 

end 

입니다

promotion.build_promotion_eng(promotion_eng_params).build_promotion_thai(promotion_thai_params) 

어떻게 이러한 문제를 해결할 수 있습니까?

감사합니다.

Answer 1

build_promotion_eng(promotion_eng_params)이 PromotionEng 인스턴스를 반환하기 때문입니다.

정상적으로 작동합니다.

promotion.build_promotion_eng(promotion_eng_params) 
promotion.build_promotion_thai(promotion_thai_params)