Rails NoMethodError：未定义的方法`password_digest=

Question

我是 Rails 的新手，并且已经看到了我的问题的所有可能的答案，因为其他开发人员经常问这个问题，但我无法解决它。请看一看。

当我尝试从控制台添加数据时出现此错误

User.create(name: "Michael Hartl", email: "mhartl@example.com", phone: "0123456789", password: "foobar", password_confirmation: "foobar")

错误显示

undefined method `password_digest=' for #<User:0x0000000375c788>
Did you mean?  password=

控制器

 def create
    @candidate = User.new(user_params)
    if @candidate.save
      flash[:notice] = "New Candidate Added Successfully"
      redirect_to(users_path)
    else
      render('new')
    end
  end

  private

    def user_params
      #Whitelisting for strng parameters
      params.require(:user).permit(:name, :email, :password, :password_confirmation, :qualification, :college, :stream, :phone)
    end

移民：

class CreateUsers < ActiveRecord::Migration[5.1]
  def change
    create_table :users do |t|
      t.string :name, null: false
      t.boolean :admin_user, default: false
      t.string :email, null: false
      t.string :password_digest, null: false
      t.string :qualification
      t.string :college
      t.string :stream
      t.string :phone
      t.timestamps
    end
  end
end

模型

require 'bcrypt'
class User < ApplicationRecord
    include BCrypt
    has_many :results, dependent: :destroy
    has_many :exams, through: :results
    accepts_nested_attributes_for :results

    VALID_EMAIL_REGEX = /\A[\w+\-.]+@[a-z\d\-.]+\.[a-z]+\z/i

    before_save { self.email = email.downcase }

    has_secure_password

    validates :email, presence: true
    validates :email, presence: true, length: { maximum: 255 },format: { with: VALID_EMAIL_REGEX },uniqueness: { case_sensitive: false }
    validates :password, presence: true, length: { minimum: 6 }
    validates_confirmation_of :password
    validates_presence_of :password_confirmation
    validates :name, presence: true
    validates :phone, numericality: {only_integer: true}, length: {is: 10 , message: "length should be 10"} 

    scope :visible, lambda { where(:visible => true) }
    scope :invisible, lambda { where(:visible => false) }
    scope :sorted, lambda { order("id ASC") }
    scope :newest_first, lambda { order("created_at DESC") }
    scope :search, lambda {|query| where(["name LIKE ?", "%#{query}%"]) }


end

Answer 1

你检查过这个https://github.com/plataformatec/devise/issues/1845

根据问题中的描述，您将 ActiveModel 的 has_secure_password 与 Devise 一起使用。你不能把两者混在一起。

可能has_secure_password从用户模型中删除将解决您的问题。