javascript - 清除 session 数据

Question

在我看来，我有一个使用 simple_form gem 的按钮:

  <%= simple_form_for(:place_order, :url => "#{}", html: {id: "place_order" }) do |f|  %>
    <%= f.button :button, "Clear Cart", class: "btn btn-primary clearcart", id: "clear_cart", name: "clear_cart" %>
    <%= f.button :submit, "Continue Shopping", class: "btn btn-success contShop", id: "continue_shopping", name: "continue_shopping" %>
    <%= f.button :submit, "Proceed to Checkout", class: "btn btn-danger checkout", id: "proceed_to_checkout", name: "proceed_to_checkout" %>
  <% end %>

我的CoffeeScript如下:

jQuery ->
  $('button#clear_cart.btn.btn.btn-primary.clearcart').on 'click', (event) ->
    $.post '/shopping/clear_cart'
  $('input#continue_shopping.btn.btn-success.contShop').on 'click', (event) ->
    $('#place_order').attr 'action', '/shopping'
  $('input#proceed_to_checkout.btn.btn-danger.checkout').on 'click', (event) ->
    $('#place_order').attr 'action', '/shopping/place_order'
  $('input#place_an_inquiry.btn.btn-danger.checkout').on 'click', (event) ->
    $('#place_order').attr 'action', '/shopping/review_order'

Controller 的 clear_cart 操作如下:

def clear_cart
  session[:product_quantity] = nil
  redirect_to shopping_index_path
end

单击 clear_cart 按钮时出现 JavaScript 错误，其中 clear_cart 操作不可用，因为我已经将其添加到路由文件中。

  resources :shopping, :only => [:index] do
    collection do
      .....
      get   :clear_cart
      post  :clear_cart
    end
  end

我在这里做错了什么，它没有清除 session 数据并将我返回到正确的区域？

Answer 1

顺便说一下，您应该让 rails 进行清理并通过 JS 重定向。

我会选择这样的东西:

路线

resources :shopping, :only => [:index] do
  collection do
    .....
    post  :clear_cart
  end
end

Controller

def clear_cart
  session.delete(:product_quantity)
  render json: {success: true, url: shopping_index_path}
end

js

$('button#clear_cart.btn.btn.btn-primary.clearcart').on 'click',    (event) ->
  $.post '/shopping/clear_cart'.success(response) ->
    window.location = response.url