ActiveRecord :: RecordNotFound with ajax destroy

Question

我目前正在使用ajax开发一个rails应用程序，并且由于我一直在遇到ActiveRecord::RecordNotFound in ItemsController#destroy错误，因此销毁功能无法正常工作。

有关其他信息，我可以删除项目就好了，但ajax部分无法正常工作，并且该项目只会在刷新页面时消失。

我似乎无法确定问题的主要来源，我目前需要一些帮助。

在此先感谢！

items_controller.rb

class ItemsController < ApplicationController 

    def create 
    @item = current_user.items.build(item_params) 
    if @item.save 
     flash[:notice] = "Item was saved" 
     redirect_to user_path(current_user) 
    else 
     flash[:error] = "There was an error saving the item. Please try again" 
     render :new 

    end 
    end 

    def destroy 
    @items = Item.find(params[:id]) 

    if @items.destroy 
     flash[:notice] = "Item was removed" 
    else 
     flash[:error] = "Item couldn't be deleted.try again!" 
    end 
    end 

    respond_to do |format| 
    format.html 
    format.js 
    end 

    def new 
    @item = Item.new 
    end 

    private 

    def item_params 
    params.require(:item).permit(:name) 
    end 

end 

users_controller.rb

class UsersController < ApplicationController 
before_action :authenticate_user!, except: [:show] 

    def new 
     @user = User.new 
    end 


    def show 
    @user = params[:id].nil? ? current_user : User.find(params[:id]) 
    @items = @user.items 
    end 

    def update 
    if current_user.update_attributes(user_params) 
     flash[:notice] = "User information updated" 
     redirect_to edit_user_registration_path 
    else 
     flash[:error] = "Invalid user information" 
     redirect_to edit_user_registration_path 
     end 
    end 


    private 

    def user_params 
    params.require(:user).permit(:name) 
    end 
end 

_item.html.erb

<p id="items-<%= item.id %>"> 
    <%= link_to "", [current_user, item], method: :delete,remote: true, class: 'glyphicon glyphicon-ok' %> 
    <%= item.name %> 
</p> 

destroy.js.erb

<% if @items.destroyed? %> 
    $('#items' +<%= @items.id %>).hide(); 
<% else %> 
    $('#items' +<%= @items.id %>).prepend("<div class='alert alert-danger'><%= flash[:error] %></div>"); 
<% end %> 

的routes.rb

Rails.application.routes.draw do 


    devise_for :users 
    resources :users, only: [:update, :show, :new, :index] 

    resources :users do 
    resources :items, only: [:create, :new, :destroy] 
    end 


    authenticated :user do 
root to: "users#show", as: :authenticated_root, via: :get 
end 


unauthenticated do 
    root 'welcome#index' 
end 

end 

Answer 1

def destroy 
    @items = Item.find(params[:id]) 

    if @items.destroy 
     flash[:notice] = "Item was removed" 
    else 
     flash[:error] = "Item couldn't be deleted.try again!" 
    end 
    end 

它看起来像你结束重定向/渲染任何东西之前你#destroy方法。

Answer 2

我想你必须解决您的销毁方法到这个：

def destroy 
    @items = Item.find(params[:id]) 

    if @items.destroy 
    flash[:notice] = "Item was removed" 
    else 
    flash[:error] = "Item couldn't be deleted.try again!" 
    end 
    respond_to do |format| 
    format.html 
    format.js 
    end 
end 

我希望这可以帮助您。