Ruby on rails rails未初始化常量控制器参数

我向模型添加了一个属性

：roleid

我已经运行了迁移并确认它在数据库中。控制器中正在发生错误

仅当我在表单中输入值时，它抛出错误：

uninitialized constant User:：Roleid

它突出显示创建操作中的行

@user=user.new（用户参数）

：

用户参数

定义如下：

params.require(:user).permit(:id, :email, :encrypted_password, :fname, :lname, :roleid)

如您所见，

roleid

存在：

mysql> DESCRIBE users;
+------------------------+--------------+------+-----+---------+----------------+
| Field                  | Type         | Null | Key | Default | Extra          |
+------------------------+--------------+------+-----+---------+----------------+
| id                     | int(11)      | NO   | PRI | NULL    | auto_increment |
| email                  | varchar(255) | NO   | UNI |         |                |
| encrypted_password     | varchar(255) | NO   |     |         |                |
| reset_password_token   | varchar(255) | YES  | UNI | NULL    |                |
| reset_password_sent_at | datetime     | YES  |     | NULL    |                |
| remember_created_at    | datetime     | YES  |     | NULL    |                |
| sign_in_count          | int(11)      | NO   |     | 0       |                |
| current_sign_in_at     | datetime     | YES  |     | NULL    |                |
| last_sign_in_at        | datetime     | YES  |     | NULL    |                |
| current_sign_in_ip     | varchar(255) | YES  |     | NULL    |                |
| last_sign_in_ip        | varchar(255) | YES  |     | NULL    |                |
| created_at             | datetime     | NO   |     | NULL    |                |
| updated_at             | datetime     | NO   |     | NULL    |                |
| fname                  | varchar(255) | YES  |     | NULL    |                |
| lname                  | varchar(255) | YES  |     | NULL    |                |
| roleid                 | int(11)      | YES  |     | NULL    |                |
+------------------------+--------------+------+-----+---------+----------------+

错误全文如下：

Started POST "/users" for ::1 at 2016-03-17 17:23:31 -0400
Processing by UsersController#create as HTML
  Parameters: {"utf8"=>"✓", "authenticity_token"=>"48xz8D0jngCGOnL7qn4A93X2qeOcmvcE8QjXah7cjsxusA7FrPK8JhmVjRNa2nflkg4qfLs5cnL2oL9cHn/iUQ==", "user"=>{"id"=>"4", "email"=>"wlrg", "encrypted_password"=>"[FILTERED]", "fname"=>"flh", "lname"=>"wflh", "roleid"=>"4"}, "commit"=>"Create User"}
Completed 500 Internal Server Error in 5ms (ActiveRecord: 0.0ms)

NameError (uninitialized constant User::Roleid):
  app/controllers/users_controller.rb:27:in `create'

控制器代码如下所示：

  def create
    @user = User.new(user_params)

    respond_to do |format|
      if @user.save
        format.html { redirect_to @user, notice: 'User was successfully created.' }
        format.json { render :show, status: :created, location: @user }
      else
        format.html { render :new }
        format.json { render json: @user.errors, status: :unprocessable_entity }
      end
    end
  end

---

你是否有

属于
用户定义的关联？@spickermann你怎么知道的？天才！那就是你的
是否属于
用户定义的
关联？@spickermann你怎么知道的？天才！就这样