Question

我遇到此错误

param is missing or the value is empty: order

我有Admin::OrdersController和Clients::OrdersController

用户从客户部分创建订单

管理员可以从管理部分更改订单状态

我的订单状态在订单模型中设置如下：

 enum status: [:pending, :paid, :sent, :cancelled, :refunded]

要在我的 admin / orders / show.html.erb

中更新此状态

我添加了一个表格：

  <%= form_tag(@order , url: admin_order_path(@order) )do %>
    <%= hidden_field_tag :status, 2 %>
    <%= hidden_field_tag :sub_total, @order.sub_total %>
    <%= hidden_field_tag :user_id, @order.user.id %>
    <%= hidden_field_tag :token, @order.token %>
    <%= submit_tag "Order sent" , class: "btn btn-success"%>
  <% end %>

admin / orders_controller.rb

class Admin::OrdersController < ApplicationController

    def index
        @orders = Order.all
        @orders = @orders.filter_by_status(params[:status]) if params[:status]
    end

    def show
        @order = Order.find(params[:id])
    end

    def edit 
        @order = Order.find(params[:id])
    end

    def update
        @order = Order.find(params[:id])
        @order.update_attributes(order_params)
        redirect_to @order
    end

    private

    def order_params
        params.require(:order).permit(:status,  :user_id, :token , :sub_total)
    end
end

请求参数：

 Request
Parameters:

{"utf8"=>"✓",
 "_method"=>"patch",
 "authenticity_token"=>"EmHbw3XMNr1hdhQKXGoMeoSQY82kxLty1M9pJZBHngJgnHY5T9I54gW+iwlww+v+WmmdSXSELLOeNRyCwIjgVQ==",
 "status"=>"2",
 "sub_total"=>"30",
 "user_id"=>"1",
 "token"=>"70717163067e1c9d",
 "commit"=>"Order sent",
 "id"=>"7"}

日志

Started PATCH "/admin/orders/7" for 127.0.0.1 at 2019-01-07 16:19:43 +0100
  [1m[36mUser Load (0.4ms)[0m  [1m[34mSELECT  "users".* FROM "users" WHERE "users"."id" = $1 ORDER BY "users"."id" ASC LIMIT $2[0m  [["id", 1], ["LIMIT", 1]]
  ↳ /Users/nellyduclos/.rbenv/versions/2.4.1/lib/ruby/gems/2.4.0/gems/activerecord-5.2.2/lib/active_record/log_subscriber.rb:98
Processing by Admin::OrdersController#update as HTML
  Parameters: {"utf8"=>"✓", "authenticity_token"=>"EmHbw3XMNr1hdhQKXGoMeoSQY82kxLty1M9pJZBHngJgnHY5T9I54gW+iwlww+v+WmmdSXSELLOeNRyCwIjgVQ==", "status"=>"2", "sub_total"=>"30", "user_id"=>"1", "token"=>"70717163067e1c9d", "commit"=>"Order sent", "id"=>"7"}
  [1m[36mOrder Load (0.3ms)[0m  [1m[34mSELECT  "orders".* FROM "orders" WHERE "orders"."id" = $1 LIMIT $2[0m  [["id", 7], ["LIMIT", 1]]
  ↳ app/controllers/admin/orders_controller.rb:17
Completed 400 Bad Request in 1ms (ActiveRecord: 0.3ms)



ActionController::ParameterMissing (param is missing or the value is empty: order):

app/controllers/admin/orders_controller.rb:25:in `order_params'
app/controllers/admin/orders_controller.rb:18:in `update'

Answer 1

您使用的hidden_field_tag不能正确地为参数加上order[...]前缀，因为params[:order]为空。

改为使用f.hidden_field：

  <%= form_tag(@order , url: admin_order_path(@order) )do |f| %>
    <%= f.hidden_field :status, value: 2 %>
    <%= f.hidden_field :sub_total, :sub_total %>
    <%= f.hidden_field :user_id, :id %>
    <%= f.hidden_field :token, :token %>
    <%= f.submit "Order sent" , class: "btn btn-success"%>
  <% end %>

管理员用户更新订单状态

1 个答案: