構建期間設置的嵌套屬性值未被保存

Question

我正在嘗試構建一些具有特定屬性值的嵌套對象。清單has_many訂單，以及訂單has_many order_events。

理想情況下，創建並保存新列表時，應該創建並保存相關訂單（使用seller_id設置）和order_event（使用狀態設置）。

我遇到了兩個問題：

1. 順序保存，但seller_id不是。

2. order_event根本沒有保存。

在控制器中，我有：

def new                                        
    @listing = Listing.new 

    @order = @listing.orders.build(seller_id: current_user.id) 

    @order_event = @listing.orders.first.order_events.build(state: 'confirmed') 
end 

def create 
    @listing = Listing.new(listing_params) 

    respond_to do |format| 
     if @listing.save 
     format.html { redirect_to manage_path, notice: 'Listing was successfully created.' } 
     format.json { render :show, status: :created, location: @listing } 
     else  
     format.html { render :new } 
     format.json { render json: @listing.errors, status: :unprocessable_entity } 
     end 
    end 
    end 

def listing_params 
    params.require(:listing).permit(:title, :address, :size, :min_lease, :price, :description, :state, space_ids: [], amenity_ids: [], images_files: [], images_attributes: [:id, :_destroy], orders_attributes: [:id, :_destroy, :start, :end, :seller_id, order_events_attributes: [:id, :_destroy, :state]]) 
end 

任何想法？

Answer 1

在您的創建操作中嘗試分配seller_id和@order_event像這樣。

def new                                        
    @listing = Listing.new 

    @order = @listing.orders.build 
    @order_event = @order.order_events.build 
end 

def create 
    @listing = Listing.new(listing_params) 

    @order = @listing.orders.first 
    @order.seller_id = current_user.id 

    @order_event = @order.order_events.build(state: 'confirmed') 

    respond_to do |format| 
    if @listing.save 
     format.html { redirect_to manage_path, notice: 'Listing was successfully created.' } 
     format.json { render :show, status: :created, location: @listing } 
    else  
     format.html { render :new } 
     format.json { render json: @listing.errors, status: :unprocessable_entity } 
    end 
    end 
end