Ruby on rails Rails 5错误接受多态中的\u嵌套\u属性\u
我在尝试创建产品时出错:“无法构建关联‘type_data’。是否正在尝试构建多态一对一关联?” 我不知道发生了什么事。我看到了许多使用相同代码的示例,但我的示例不起作用 这里是我的Ruby on rails Rails 5错误接受多态中的\u嵌套\u属性\u,ruby-on-rails,ruby,ruby-on-rails-4,Ruby On Rails,Ruby,Ruby On Rails 4,我在尝试创建产品时出错:“无法构建关联‘type_data’。是否正在尝试构建多态一对一关联?” 我不知道发生了什么事。我看到了许多使用相同代码的示例,但我的示例不起作用 这里是我的product.rb class Product < ApplicationRecord belongs_to :type_data, polymorphic: true accepts_nested_attributes_for :type_data, allow_destroy: true end
product.rb
class Product < ApplicationRecord
belongs_to :type_data, polymorphic: true
accepts_nested_attributes_for :type_data, allow_destroy: true
end
类产品
这是我的酒店房间
class HotelRoom < ApplicationRecord
has_one :product, as: :type_data, dependent: :destroy
has_many :rates
accepts_nested_attributes_for :rates, allow_destroy: true
end
class HotelRoom
我的产品/_form.html.erb
<%= f.fields_for :type_data do |builder| %>
<%= render "edit_hotel_account_fields", f: builder %>
<% end %>
我的产品/\u编辑\u帐户\u字段.heml.erb
<%= f.fields_for :rates do |builder| %>
<%= render 'rate_fields', f: builder %>
<% end %>
<%= link_to_add_fields "Add rate", f, :rates %>
我的产品/_rate_fields.html.erb
<div class="form-group">
<label><%= t('products.new.rates.double_price') %></label>
<%= f.number_field :double_price, step: 0.1, class: 'form-control' %>
</div>
<%= f.hidden_field :_destroy %>
<%= link_to "remove", '#', class: "remove_fields" %>
这是我所有的产品
class ProductsController < ApplicationController
before_action :set_product, only: [:show, :edit, :update, :destroy]
# GET /products
# GET /products.json
def index
@products = Product.all
end
# GET /products/1
# GET /products/1.json
def show
end
# GET /products/new
def new
@product = Product.new
end
# GET /products/1/edit
def edit
end
# POST /products
# POST /products.json
def create
@product = Product.new(product_params)
respond_to do |format|
if @product.save
format.html { redirect_to products_path, notice: 'Product was successfully created.' }
format.json { render :show, status: :created, location: @product }
else
format.html { render :new }
format.json { render json: @product.errors, status: :unprocessable_entity }
end
end
end
# PATCH/PUT /products/1
# PATCH/PUT /products/1.json
def update
respond_to do |format|
if @product.update(product_params)
format.html { redirect_to @product, notice: 'Product was successfully updated.' }
format.json { render :show, status: :ok, location: @product }
else
format.html { render :edit }
format.json { render json: @product.errors, status: :unprocessable_entity }
end
end
end
# DELETE /products/1
# DELETE /products/1.json
def destroy
@product.destroy
respond_to do |format|
format.html { redirect_to products_url, notice: 'Product was successfully destroyed.' }
format.json { head :no_content }
end
end
# AJAX cargas más fechas
def date_range
end
private
# Use callbacks to share common setup or constraints between actions.
def set_product
@product = Product.find(params[:id])
end
# Never trust parameters from the scary internet, only allow the white list through.
def product_params
params.require(:product).permit(:status, :provider_id, :commission, :title, :commercial_title, :title_seo, :description, :seo_description, :slug_web, :slug_redirection, :services, :info, :province, :state, :city, :country, :cancel_conditions, :limit_children_age, :special_alert, :notes, :stock, :iva, :minimum_advance, type_data_attributes: [:room_stock, :room_service, :_destroy, rates_attributes: [:title, :start_date, :end_date, :hotel_room_id, :individual_price, :double_price, :child_bed_price, :adult_bed_price, :adult_breakfast_price, :adult_medium_price, :adult_complete_price, :child_breakfast_price, :child_medium_price, :child_complete_price, :_destroy]], dates: {}, map: {}, address_autocomplete: {})
end
end
class ProductsController
有人知道发生了什么事吗
谢谢!因为酒店模型有一款产品是通过多态的
class HotelRoom < ApplicationRecord
has_one :product, as: :type_data, dependent: :destroy
accepts_nested_attributes_for :product, allow_destroy: true
accepts_nested_attributes_for :rates, allow_destroy: true
....
end
以酒店视图形式显示
<%= form_for(@hotel_room) do |f| %>
....
<%= f.fields_for(:product) do |p| %>
....
<% end %>
<% end %>
....
....
注:
如果您在HotelRoom和Product之间有共同的数据,那么您需要引入另一个模型,如TypeData,并将其设置为多态。您可以发布
products\u controller
代码吗?是的,使用products\u controller.rb中的所有代码进行编辑。请查看此链接,效果非常好!谢谢!!!
<%= form_for(@hotel_room) do |f| %>
....
<%= f.fields_for(:product) do |p| %>
....
<% end %>
<% end %>