Rails:如何重构我的控制器参数代码

def create
  user = User.new(user_params)
  # ...
end

private

def user_params
  params.require(:user).permit(:name, :email, :password)
end

class UserForm
  include ActiveModel::Model

  attr_accessor :name, :email, :password

  validates :name, presence: true
  validates :email, presence: true, format: { with: URI::MailTo::EMAIL_REGEXP }
  validates :password, presence: true

  def save
    return false if invalid?

    user = User.new(name: name, email: email, password: password)
    user.save
  end
end

def create
  user_form = UserForm.new(user_params)
  if user_form.save
    # ...
  else
    # ...
  end
end

private

def user_params
  params.require(:user).permit(:name, :email, :password)
end

class CreateUser
  def initialize(params)
    @params = params
  end

  def call
    user = User.new(user_params)
    if user.save
      # ...
    else
      # ...
    end
  end

  private

  def user_params
    @params.require(:user).permit(:name, :email, :password)
  end
end

def create
  CreateUser.new(params).call
end