Rails 5 accepts_nested_attributes_for unpermitted parameter 错误? (反应前端)

Rails 5 accepts_nested_attributes_for unpermitted parameter error? (React front end)

我在 accepts_nested_attributes here and here 上查看了以前的 SO 解决方案,但我仍然遇到错误。我使用 React 作为前端和 Rails 后端。我正在尝试创建一个发送到计划的请求,并从那里填充给工作人员。

我正在使用 Rails 5.0.2。我有 schedule, worker, roster 个模型。

//Schedule
  has_many :workers, through: :rosters, dependent: :destroy
  has_many :rosters
  accepts_nested_attributes_for :workers #implement accept_nested_attributes here

//Roster
  belongs_to :schedule
  belongs_to :worker

//Worker
  has_many :schedules, through: :rosters
  has_many :rosters

这是我的日程控制器:

  def create
    @schedule = Schedule.new(schedule_params)
    if @schedule.save
      render json: @schedule
    else
      render json: @schedule, status: :unprocessable_entity
    end
  end
  ...


private

  def schedule_params
    params.permit(:date, :user_id, :workers_attributes => [:worker_id, :name, :phone])
  end

这是我得到的错误:

app/controllers/schedules_controller.rb:13:in `create'
Started POST "/api/schedules" for 127.0.0.1 at 2017-05-23 10:30:38 -0700
Processing by SchedulesController#create as */*
  Parameters: {"date"=>"2017-05-25T02:00:00.000Z", "user_id"=>1, "workers_attributes"=>{"name"=>"Iggy Test", "phone"=>"1
23-456-7890"}, "schedule"=>{"date"=>"2017-05-25T02:00:00.000Z", "user_id"=>1}}
Unpermitted parameter: schedule
Completed 500 Internal Server Error in 15ms (ActiveRecord: 0.0ms)



TypeError (no implicit conversion of Symbol into Integer):

app/controllers/schedules_controller.rb:13:in `create'

为什么我的请求显示 Unpermitted parameter schedule?如果我删除 workers_attributes 而只有 params.permit(:date, :user_id),它就可以工作。我想不通为什么错误指向 schedule。我怎样才能成功 POST nested_attributes 请求 rails?

我正在使用 fetch 来执行来自反应端的 POST 请求:

...
return fetch(`api/schedules`, {
    method: 'POST',
    headers: {
      'Content-Type': 'application/json',
    },
    body: JSON.stringify({
      date: date,
      user_id: 1,
      workers_attributes: {name: "Iggy Test", phone: "123-456-7890"}
    })

编辑:

按照@gabrielhilal 的回答,我添加了 require()params.require(:schedule).permit(:date, :user_id, :workers_attributes => [:id, :name, :phone]),并在 React 的末端编辑了提取 POST 以包含对象数组而不是普通对象:workers_attributes: [{name: "Iggy Test", phone: "123-456-7890"}]。它不再抱怨,并且 确实 注册了新的时间表。然而,新工人都是nil:

#Worker.last shows:
 #<Worker id: 32, name: nil, phone: nil, created_at: "2017-05-23 19:36:09", updated_at: "2017-05-23 19:36:09">

抱歉,不是要创建嵌套问题,但有人知道为什么它是 nil 吗?

编辑 2:

我让它工作了,有点。

如果我有

def create
    @schedule = Schedule.new(schedule_params)
    @workers = @schedule.rosters.build.build_worker
...

//schedule_params
params.permit(:date, :user_id, :workers_attributes => [:id, :name, :pho

没有])

我能够显示 "Iggy Test",但它会立即创建另一个 nil worker。

日志:

Started POST "/api/schedules" for 127.0.0.1 at 2017-05-23 20:42:38 -0700
Processing by SchedulesController#create as */*
  Parameters: {"date"=>"2017-05-26T02:00:00.000Z", "user_id"=>1, "workers_attributes"=>[{"name"=>"Iggy Test", "phone"=>"
123-456-7890"}], "schedule"=>{"date"=>"2017-05-26T02:00:00.000Z", "user_id"=>1}}
Unpermitted parameter: schedule
   (0.1ms)  begin transaction
  User Load (0.3ms)  SELECT  "users".* FROM "users" WHERE "users"."id" = ? LIMIT ?  [["id", 1], ["LIMIT", 1]]
  SQL (1.1ms)  INSERT INTO "schedules" ("date", "created_at", "updated_at", "user_id") VALUES (?, ?, ?, ?)  [["date", 20
17-05-26 02:00:00 UTC], ["created_at", 2017-05-24 03:42:38 UTC], ["updated_at", 2017-05-24 03:42:38 UTC], ["user_id", 1]
]
  SQL (0.2ms)  INSERT INTO "workers" ("name", "phone", "created_at", "updated_at") VALUES (?, ?, ?, ?)  [["name", "Iggy
Test"], ["phone", "123-456-7890"], ["created_at", 2017-05-24 03:42:38 UTC], ["updated_at", 2017-05-24 03:42:38 UTC]]
  SQL (0.2ms)  INSERT INTO "rosters" ("worker_id", "created_at", "updated_at") VALUES (?, ?, ?)  [["worker_id", 56], ["c
reated_at", 2017-05-24 03:42:38 UTC], ["updated_at", 2017-05-24 03:42:38 UTC]]

  SQL (0.1ms)  INSERT INTO "workers" ("created_at", "updated_at") VALUES (?, ?)  [["created_at", 2017-05-24 03:42:38 UTC
], ["updated_at", 2017-05-24 03:42:38 UTC]]
  SQL (0.6ms)  INSERT INTO "rosters" ("schedule_id", "worker_id", "created_at", "updated_at") VALUES (?, ?, ?, ?)  [["sc
hedule_id", 52], ["worker_id", 57], ["created_at", 2017-05-24 03:42:38 UTC], ["updated_at", 2017-05-24 03:42:38 UTC]]
  SQL (0.4ms)  UPDATE "rosters" SET "schedule_id" = ?, "updated_at" = ? WHERE "rosters"."id" = ?  [["schedule_id", 52],
["updated_at", 2017-05-24 03:42:38 UTC], ["id", 52]]
   (5.6ms)  commit transaction
Completed 200 OK in 417ms (Views: 6.9ms | ActiveRecord: 14.7ms)

如果我将参数修改为具有 require(:schedule)

params.require(:schedule).permit(:date, :user_id, :workers_attributes => [:id, :name, :phone])

它只创建一个 nil 工人。

日志:

Started POST "/api/schedules" for 127.0.0.1 at 2017-05-23 20:45:03 -0700
Processing by SchedulesController#create as */*
  Parameters: {"date"=>"2017-05-26T02:00:00.000Z", "user_id"=>1, "workers_attributes"=>[{"name"=>"Iggy Test", "phone"=>"
123-456-7890"}], "schedule"=>{"date"=>"2017-05-26T02:00:00.000Z", "user_id"=>1}}
   (0.1ms)  begin transaction
  User Load (0.3ms)  SELECT  "users".* FROM "users" WHERE "users"."id" = ? LIMIT ?  [["id", 1], ["LIMIT", 1]]
  SQL (0.4ms)  INSERT INTO "schedules" ("date", "created_at", "updated_at", "user_id") VALUES (?, ?, ?, ?)  [["date", 20
17-05-26 02:00:00 UTC], ["created_at", 2017-05-24 03:45:03 UTC], ["updated_at", 2017-05-24 03:45:03 UTC], ["user_id", 1]
]
  SQL (0.2ms)  INSERT INTO "workers" ("created_at", "updated_at") VALUES (?, ?)  [["created_at", 2017-05-24 03:45:03 UTC
], ["updated_at", 2017-05-24 03:45:03 UTC]]

  SQL (0.3ms)  INSERT INTO "rosters" ("schedule_id", "worker_id", "created_at", "updated_at") VALUES (?, ?, ?, ?)  [["sc
hedule_id", 53], ["worker_id", 58], ["created_at", 2017-05-24 03:45:03 UTC], ["updated_at", 2017-05-24 03:45:03 UTC]]
   (2.4ms)  commit transaction
Completed 200 OK in 81ms (Views: 1.3ms | ActiveRecord: 8.3ms)

你的post:

{
  "date"=>"2017-05-25T02:00:00.000Z",
  "user_id"=>1,
  "workers_attributes"=>{
    "name"=>"Iggy Test",
    "phone"=>"123-456-7890"
  },
  "schedule"=> {
    "date"=>"2017-05-25T02:00:00.000Z",
    "user_id"=>1
  }
}

您有两个问题:

  • schedule 是不允许的(这就是您在日志中看到该消息的原因),但它无论如何都会被忽略(不会引发任何错误)。
  • workers_attributes 应该是工作人员的集合而不是简单的散列,所以这就是您遇到错误的原因。

您应该在 post 请求中得到如下内容:

{
  "date"=>"2017-05-25T02:00:00.000Z",
  "user_id"=>1,
  "workers_attributes"=>{
    "0" => {
      "name"=>"Iggy Test",
      "phone"=>"123-456-7890"
    }
  }
}