Question

我的表格很简单：

    <%= form_for(@shop, remote: true, data: { confirm: "You sure?"}) do |fa| %>
      <%= fa.hidden_field :status, :value => 1 %>
      <%= fa.submit "Approve", class: "btn btn-large btn-success" %>
    <% end %>
    <%= form_for(@shop, remote: true, data: { confirm: "You sure?" }) do |fr| %>
      <%= fr.hidden_field :status, :value => 2 %>
      <%= fr.submit "Reject", class: "btn btn-large btn-danger" %>
    <% end %>

我想更新status的属性@shop。按＆＃34;批准＆＃34;应该将其设置为1，＆＃34;拒绝＆＃34; - 分别为2。但是，当我点击按钮（确认除外）时，没有任何反应。我知道我的代码中没有重要且基本的东西，但我无法弄清楚是什么。

另外，有没有办法在一个form_for中写入所有内容？像

<%= form_for(@shop, remote: true, data: { confirm: "You sure?"}) do |fa| %>
  <%= fa.hidden_field :status_a, :value => 1 %>
  <%= fa.hidden_field :status_r, :value => 2 %>
  <%= fa.submit "Approve", class: "btn btn-large btn-success" %>
  <%= fa.submit "Reject", class: "btn btn-large btn-danger" %>
<% end %>

PS：商店控制器有：

  def update
    if @shop.update_attributes(shop_params)
      flash[:success] = "Shop updated"
      redirect_to @shop
    else
      render 'edit'
    end
  end

  def edit
  end
.
.
  private

    def shop_params       
       params.require(:shop).permit(:title, :rating, :pic, :status,
                                    address_attributes: [:country, :state, :city, :street])
    end

按批准按钮时

服务器日志：

Started PATCH "/shops/64" for 127.0.0.1 at 2014-08-12 12:52:36 +0400
Processing by ShopsController#update as JS
  Parameters: {"utf8"=>"✓", "shop"=>{"status"=>"1"}, "commit"=>"Approve", "id"=>"64"}
  User Load (0.6ms)  SELECT  "users".* FROM "users"  WHERE "users"."remember_token" = '5927a9415e68e7b293f8d1e24a709961bc260195' LIMIT 1
Completed 500 Internal Server Error in 18ms

NoMethodError (undefined method `update_attributes' for nil:NilClass):
  app/controllers/shops_controller.rb:35:in `update'


  Rendered /usr/lib/ruby/gems/1.9.1/gems/actionpack-4.1.1/lib/action_dispatch/middleware/templates/rescues/_source.erb (1.1ms)
  Rendered /usr/lib/ruby/gems/1.9.1/gems/actionpack-4.1.1/lib/action_dispatch/middleware/templates/rescues/_trace.text.erb (1.0ms)
  Rendered /usr/lib/ruby/gems/1.9.1/gems/actionpack-4.1.1/lib/action_dispatch/middleware/templates/rescues/_request_and_response.text.erb (1.1ms)
  Rendered /usr/lib/ruby/gems/1.9.1/gems/actionpack-4.1.1/lib/action_dispatch/middleware/templates/rescues/diagnostics.erb (66.5ms)

ShopsController中的第35行是

if @shop.update_attributes(shop_params)

Answer 1

您应该在更新它的属性

之前获取Shop对象

def update
  @shop = Shop.find(params[:id])
  if @shop.update_attributes(shop_params)
    ..

Answer 2

当然，您可以在按钮的onclick操作中指定隐藏的输入值，如下所示：

<%= form_for(@shop, remote: true, data: { confirm: "You sure?"}) do |fa| %>
  <%= fa.hidden_field :status, :value => 1 %>
  <%= fa.submit "Approve", class: "btn btn-large btn-success", onclick: "shop_status.value = '1'" %>
  <%= fa.submit "Reject", class: "btn btn-large btn-danger", onclick: "shop_status.value = '2'" %>
<% end %>

Ruby on Rails批准/拒绝按钮

2 个答案: