rails @user.deleteはできるが、@user.destroyはできない

Question

初学者です。ユーザーのデータを削除をするため、

 def destroy 
      @user = User.find_by(id: params[:id])
      @user.destroy
      session[:user_id] = nil
      flash[:notice] = "アカウント削除しました"
      redirect_to("/")
  end

という形で処理しようとしましたが、NameError in UsersController#destroy
uninitialized constant User::Message
というエラーがでます。
@user.deleteならエラーはでないのですが原因が分かりません。
rails cでやってみると、

irb(main):001:0> @user = User.find_by(id: 12)         
  User Load (0.5ms)  SELECT  "users".* FROM "users" WHERE "users"."id" = ? LIMIT ?  [["id", 12], ["LIMIT", 1]]
=> #<User id: 12, user_name: "森", password_digest: "$2a$12$5d2VhTxwn7Z1x9tzBO2R0eEpI3ntm9fPO/.g/j09tK7...", email: "[e-mail]", imagename: "default_user.jpg", admin: false, finishcount: 0, point: 0.0, created_at: "2020-01-05 03:26:39", updated_at: "2020-01-05 03:26:39">
irb(main):002:0> @user.destroy
   (0.3ms)  begin transaction
  Post Load (0.3ms)  SELECT "posts".* FROM "posts" WHERE "posts"."user_id" = ?  [["user_id", 12]]
  Post Destroy (2.1ms)  DELETE FROM "posts" WHERE "posts"."id" = ?  [["id", 13]]
  Accept Load (0.3ms)  SELECT "accepts".* FROM "accepts" WHERE "accepts"."user_id" = ?  [["user_id", 12]]
  Accept Destroy (0.3ms)  DELETE FROM "accepts" WHERE "accepts"."id" = ?  [["id", 6]]
  Accept Destroy (0.5ms)  DELETE FROM "accepts" WHERE "accepts"."id" = ?  [["id", 7]]
   (112.7ms)  rollback transaction
Traceback (most recent call last):
        1: from (irb):2
NameError (uninitialized constant User::Message)

こんな感じです。

class User < ApplicationRecord
  # Include default devise modules. Others available are:
  # :confirmable, :lockable, :timeoutable, :trackable and :omniauthable
  # Include default devise modules. Others available are:
  # :confirmable, :lockable, :timeoutable, :trackable and :omniauthable
before_save { self.email = email.downcase }
VALID_EMAIL_REGEX = /\A[\w+\-.]+@[a-z\d\-.]+.[a-z]+\z/i
validates :email,uniqueness:true,presence:true,length: { maximum: 255 },format: { with: VALID_EMAIL_REGEX }

validates :user_name,{presence: true}
validates :user_name,length:{maximum: 40}

validates :password,presence: true,if: Proc.new { |a| a.password.present? }
validates :password,length:{maximum: 18},if: Proc.new { |a| a.password.present? }
validates :password,length:{minimum: 6},if: Proc.new { |a| a.password.present? }


has_many :posts, dependent: :destroy
has_many :accepts, dependent: :destroy
has_secure_password

    
has_many :messages, dependent: :destroy
has_many :entries, dependent: :destroy

def self.search(search)
  if search
     User.where(['user_name LIKE?',"%#{search}%"])
  else
     User.all
  end
end


#devise :database_authenticatable, :registerable,
# :recoverable, :rememberable, :validatable, :confirmable

end

すいません、どなたかご教授をお願いします。

Answer 1

class Message が未定義では無いですか？
class User の　has_many :messages, dependent: :destroy　があるのでdestroyに応じて messagesを削除しようとしたが、messages から求められる Message 定数が未定義、なので、 User::Message を見に行ったがこれもなし

という動きと思われます

Comments

[tori315]

ありがとうございました。
#has_many :messages, dependent: :destroy
#has_many :entries, dependent: :destroy
としたらできました。

[winterboum]

残念、外れたか。
解決良かったです