构建期间设置的嵌套属性值未被保存

Question

我正在尝试构建一些具有特定属性值的嵌套对象。清单has_many订单，以及订单has_many order_events。

理想情况下，创建并保存新列表时，应该创建并保存相关订单（使用seller_id设置）和order_event（使用状态设置）。

我遇到了两个问题：

1. 顺序保存，但seller_id不是。

2. order_event根本没有保存。

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

在您的创建操作中尝试分配seller_id和@order_event像这样。

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