命名空间和Simple_Form命中正确的控制器/操作

Question

我在购物车页面上有一个表单来更新line_items。所以我更新需要退出车控制器和输入line_items控制器...我使用以下形式的资源...

<%= simple_form_for shifted_commerce_line_item_path(item), 
:url => {controller: 'line_items', action: 'update'} do |f| %> 

我没有得到任何路由匹配...

No route matches {:action=>"update", :controller=>"shifted_commerce/line_items"} 

事情是...我有控制器中的动作...

我会发布我的路线。

 shifted_commerce_line_items GET /shifted_commerce/line_items(.:format)   shifted_commerce/line_items#index 
           POST /shifted_commerce/line_items(.:format)   shifted_commerce/line_items#create 
    new_shifted_commerce_line_item GET /shifted_commerce/line_items/new(.:format)  shifted_commerce/line_items#new 
edit_shifted_commerce_line_item GET /shifted_commerce/line_items/:id/edit(.:format) shifted_commerce/line_items#edit 
     shifted_commerce_line_item GET /shifted_commerce/line_items/:id(.:format)  shifted_commerce/line_items#show 
           PATCH /shifted_commerce/line_items/:id(.:format)  shifted_commerce/line_items#update 
           PUT /shifted_commerce/line_items/:id(.:format)  shifted_commerce/line_items#update 
           DELETE /shifted_commerce/line_items/:id(.:format)  shifted_commerce/line_items#destroy 

如何获取此表单以在控制器中执行更新操作？

难道我们看不到上述路线吗？既PUT和PATCH比赛/shifted_commerce/Line_items/:id...and我传递的ID与（项目）...

更新1我还要补充一点，我正在这种形式在一个循环中，所以每个line_item都可以被编辑。任何东西都不是我想要传递给ID的路径......另外，我正在使用购物车控制器，在节目中采取行动。不是line_item控制器，请编辑操作。

更新2如果我做了以下simple_form_for：

<%= simple_form_for shifted_commerce_line_item_path(item), :url => {controller: 'line_items', action: 'create'} do |f| %> 

它成功地需要我到line_items控制器的创建操作。但如果我这样做

<%= simple_form_for shifted_commerce_line_item_path(item), :url => {controller: 'line_items', action: 'update'} do |f| %> 

我得到路由错误。这是怎么回事？！ 它为什么适用于创建，但不适用于更新？我有更新的动作在我的控制器......

ShiftedCommerce :: LineItemsController

class ShiftedCommerce::LineItemsController < ApplicationController 
     before_action :set_line_item, only: [:show, :edit, :update, :destroy] 
     before_action :set_line_item_item, only: [:show, :edit, :update, :destroy] 

     # GET /line_items 
     # GET /line_items.json 
     def index 
     @line_items = ShiftedCommerce::LineItem.all 
     end 

     # GET /line_items/1 
     # GET /line_items/1.json 
     def show 
     end 

     # GET /line_items/new 
     def new 
     @line_item = ShiftedCommerce::LineItem.new 
     end 

     # GET /line_items/1/edit 
     def edit 
     end 

     # POST /line_items 
     # POST /line_items.json 
     def create 
     @cart = current_cart 
     # item is built from base_item, after finding associated product 
      @base_item_id = params[:shifted_commerce_line_item][:base_item_id] 
     get_item_id_from_base_item_params 
      build_line_item 

      ## Does a line item with the same itemt_id already exist in cart? 
      if @line_item.exists_in_collect?(current_cart.line_items) 
      #if so, change quantity, check if there's enough stock 
       if current_cart.where_line_item_with(@item_id).update_quantity(@line_item.quantity) == true 
       @line_item.destroy 
       redirect_to shifted_commerce_base_items_path 
       flash[:success] = "Detected item In Cart, Added Your Amount More to Quantity" 
       else #otherwise there's not enough product in stock. 
       redirect_to shifted_commerce_cart_path 
       flash[:failure] = "Cannot Add To Cart, Not Enough In Stock" 
       end 
      else # This product isn't in the cart already let's save it! 
      if @line_item.have_enough_item? == true # if there is enough stock, save 
       if @line_item.save 
       respond_to do |format| 
       format.html { redirect_to shifted_commerce_base_items_path, 
        :notice => "Added to Cart." } 
       format.xml { render :xml => @line_item, 
        :status => :created, :location => @line_item } 
       end 
       else 
       format.xml { render :xml => @line_item.errors, 
        :status => :unprocessable_entity } 
       end 
      else # not enough stock, not saved. 
       redirect_to shifted_commerce_base_items_path 
       if @line_item.item.stock_qty > 0 
       flash[:failure] = "Sorry! We Only Don't Have Enough In Stock" 
       else 
       flash[:failure] = "Sorry! That Item Is Out Stock" 
       end 
      end 
      end 
     end 

     # PATCH/PUT /line_items/1 
     # PATCH/PUT /line_items/1.json 
     def update 
     @line_item = ShiftedCommerce::LineItem.find(params[:id]) 
     raise 
     @line_item.attributes = line_item_params 
      if @line_item.over_order_cap? #is the quantity over maximum? 
      flash[:error] = "Contact Us For Orders of This Size -- Quantity Set To Max" 
      redirect_to cart_path 
      else # quantity to change to not over maximum. 
      if @line_item.have_enough_item? == true 
       @line_item.update(line_item_params) 
       #did they update quantity to 0? 
       if @line_item.quantity <= 0 
        @line_item.destroy 
         flash[:success] = "Item Removed" 
         redirect_to :back 
       else 
         flash[:success] = "Itemed Updated" 
         redirect_to cart_path 
       end 
      else 
       redirect_to cart_path 
       flash[:failure] = "We Don't Have Enough In Stock. Update Failed" 
      end 
      end 
     end 

     # DELETE /line_items/1 
     # DELETE /line_items/1.json 
     def destroy 
     @line_item.destroy 
     respond_to do |format| 
      format.html { redirect_to line_items_url } 
      format.json { head :no_content } 
     end 
     end 

     private 
     # Use callbacks to share common setup or constraints between actions. 
     def set_line_item 
      @line_item = LineItem.find(params[:id]) 
     end 
     def set_line_item_item 
      @line_item_name = @line_item.item.base_item 
     end 

     # Never trust parameters from the scary internet, only allow the white list through. 
     def line_item_params 
      params.fetch(:shifted_commerce_line_item, {}).permit(:item_id, :cart_id, :order_id, :quantity, :weight, :units) 
     end 
     def build_line_item 
      @line_item = @cart.line_items.build(
      :item_id => @item_id, 
      :order_id => nil, 
      :weight => params[:shifted_commerce_line_item][:weight], 
      :quantity => params[:shifted_commerce_line_item][:quantity] 
      ) 
     end 
     def get_item_id_from_base_item_params 

      @item_id = ShiftedCommerce::Item.where(:base_item_id => @base_item_id).where(:size_id => params[:shifted_commerce_line_item][:size]).first.id 
     end 
    end 

line_item.rb

class ShiftedCommerce::LineItem < ActiveRecord::Base 
     belongs_to :item 
     belongs_to :cart 
     after_create :set_order_weight#, :set_package_dimentions 
     after_update :set_order_weight#, :set_package_dimentions 
     #max capactiy here 
     def have_enough_item? 
      if self.item.stock_qty >= self.quantity 
      return true 
      else 
      if self.quantity_was == nil 
       return false 
      else 
      self.quantity = self.quantity_was 
      self.save 
      return false 
      end 
      end 
     end 
     def set_order_weight 
     if 
      self.cart.nil? 
     else 
      self.cart.total_weight = self.cart.line_items.to_a.sum {|item| (item.weight)*(item.quantity)} 
      self.cart.save 
     end 
     end 
     def over_order_cap? 
      if self.quantity > 5 
      self.quantity = 5 
      self.save 
      return true 
      end 
      return false 
     end 
     def update_quantity(qty) 
      self.quantity += qty 
      if self.have_enough_item? == true 
      self.save 
      end 
     end 
     def exists_in_collect?(items) 
      items.each do |item| 
      return true if self.item_id == item.item_id 
      end 
      return false 
     end 
     def set_order_total_units 
      if 
      self.cart.nil? 
      else 
      self.set_cart_units 
      self.cart.total_units = self.cart.total_units 
      self.cart.save 
      end 
     end 
     def total_price 
      item.base_item.price * quantity 
     end 
    end 

的routes.rb

namespace :shifted_commerce do 
    resources :line_items 
    resources :items 
    resources :base_items 
    resource :cart, only: [:show, :update, :destroy] do 
      resource :order, only: [:show, :create, :update, :edit, :new] 
     end 
end 

Answer 1

改变这一点，尝试：

<%= simple_form_for item, url: shifted_commerce_line_items_path(item), method: :put do |f| %> 

按照你路线

更新：

对不起它必须是post但不put这样的：

<%= simple_form_for item, url: shifted_commerce_line_item_path(item), method: :post do |f| %> 

Answer 2

尝试使用<%= simple_form_for ([:shifted_commerce, item]) do |f| %>或 <%= simple_form_for item, :url => shifted_commerce_line_item_path do |f| %>