Rails ajax：无法加载资源：服务器以状态404（未找到）响应

Question

I'm trying to rewrite some actions in my app with ajax.

items_controller:

...
def add_to_cart
  @cart = Cart.where(id: session[:cart_id]).first
  @cart = Cart.create if @cart.nil?
  session[:cart_id] = @cart.id
  session[:cart_items] = @cart.items
  session[:cart_items] << @item
  redirect_to root_url
end
...

items.js:

jQuery(function($) {
  $(".addtoCart").click( function() {
    var current_item = $(this).parents('tr')[0];
    if(confirm("Add to cart")) {
      $.ajax({
        url: '/items/' + $(current_item).attr('data-item-id') + '/add_to_cart',
        type: 'POST'
      });
    };
  });
});

view file:

%tr{"data-item-id" => "#{i.id}"}
  %td
    %span.addtoCart Add to cart

routes:

Store::Application.routes.draw do

  root 'items#index'

  resources :items

  resources :items do
    get :add_to_cart, on: :member
  end

end

When I click on Add to cart there is an error Failed to load resource: the server responded with a status of 404 (Not Found) and POST http://localhost:3000/items/13/add_to_cart 404 (Not Found) although /items/13 is exists. Where did I made a mistake?

error stacktrace:

Started POST "/items/13/add_to_cart" for 127.0.0.1 at 2014-03-30 02:55:03 +0400

ActionController::RoutingError (No route matches [POST] "/items/13/add_to_cart")

Thanks!

Answer 1

Change your routes as below:

  root 'items#index'

  resources :items do
    post :add_to_cart, on: :member
  end

I converted the add_to_cart request to a post rather than get because you are firing a post request and have defined the route as get . Also, I removed the duplicate route defined resources :items and