Comment créer un nouvel enregistrement sur has_one pour deux modèles en même temps sur Rails?

Question

Je dois créer un nouvel enregistrement pour deux modèles appartenant au même modèle sur une méthode.

Ceci est mon modèle

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 

Ceci est ma méthode de commande

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 

Puis, quand je soumets la forme i toujours eu cette erreur

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

Sur cette ligne

promotion.build_promotion_eng(promotion_eng_params).build_promotion_thai(promotion_thai_params) 

Comment puis-je résoudre ce genre de problème?

Merci!

Answer 1

C'est parce que build_promotion_eng(promotion_eng_params) renvoie une instance PromotionEng.

Cela devrait fonctionner correctement.

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