Question

每当我希望用户点击应用的通知下拉列表时，我想将通知的status更新为read。

这是控制器代码：

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

以及应该为控制器触发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，它会返回此错误：

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" = $1  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（错误的参数数量（2表示1））：通过AJAX POST更新时

1 个答案: