Rails 4 引发 ArgumentError（错误数量的参数（2 为 1））：通过 AJAX POST 更新时

Question

我想在用户单击应用程序的通知下拉菜单时将通知的 status 更新为 read。

控制器代码如下：

class Api::V1::NotificationsController < ApiController
  before_action :authenticate_user!

  def index
    @notifications = Notification.where(user_id: current_user.id).order(created_at: :desc)

    render_success @notifications
  end

  def create
    Notification.update_all({status: "read"}, {user_id: current_user.id})
  end

end

和应该触发控制器 create 方法的 jQuery 代码：

$('.notifications-menu').on('shown.bs.dropdown', function () {
  console.log('Opened notifications');
  $.post('/api/v1/notifications');
})

不幸的是，它 returns 这个错误：

Started POST "/api/v1/notifications" for ::1 at 2017-09-19 16:27:53 +0800
Processing by Api::V1::NotificationsController#create as */*
  User Load (0.6ms)  SELECT  "users".* FROM "users" WHERE "users"."id" =   ORDER BY "users"."id" ASC LIMIT 1  [["id", 13]]
Completed 500 Internal Server Error in 6ms (ActiveRecord: 0.6ms)

ArgumentError (wrong number of arguments (2 for 1)):
  app/controllers/api/v1/notifications_controller.rb:11:in `create'

Answer 1

将您的 create 方法更改为：

def create
  Notification.update_all(status: "read", user_id: current_user.id)
end

Rails 4 引发 ArgumentError（错误数量的参数（2 为 1））：通过 AJAX POST 更新时

Rails 4 raises ArgumentError (wrong number of arguments (2 for 1)): when updating through AJAX POST

ruby

jquery

ruby-on-rails

rails-api

ruby-on-rails-4