ruby-on-rails - 无法在 Rails 4 中检索 attr_accessor

Question

我正在做一个 Ruby on Rails 项目，我有两个模型:

<强>1。用户

<强>2。商家

他们的关系是:

用户 has_one :merchant

Merchant belongs_to :user

然后在我的 user.rb

attr_accessor :merchant_name
after_create :create_merchant

def create_merchant
  create_merchant(name: merchant_name)
end

在我的用户表单中:

= form_for @user do |f|
  = f.text_field :merchant_name
  = f.text_field :email
  = f.text_field :password

问题是用户和商家已经创建但是商家的名字是nil

在我的Account::RegistrationsController

class Account::RegistrationsController < Devise::RegistrationsController

  protected
  def after_sign_up_path_for(resource)
    account_users_path
  end


  private

  def registration_params
    params.require(:user).permit(:merchant_name)
  end

end

我收到这个错误:

  Processing by Account::RegistrationsController#create as HTML
      Parameters: {"utf8"=>"✓", "authenticity_token"=>"ht8vHG8I4bz2ylt+mtLC7hilQnK3VnYtcHgSNv8nSeg=", "user"=>{"merchant_name"=>"Zara 123", "email"=>"allen.chun@hotmail.com", 
"password"=>"[FILTERED]", 
"password_confirmation"=>"[FILTERED]"}, "commit"=>"Sign Up"}

    Unpermitted parameters: merchant_name

Answer 1

如果我是你，我不会重写 create_merchant 方法，试试这样的方法:

after_create -> { create_merchant!(:name => self.merchant_name) }

并确保您的 merchant_name 在用户 Controller 中是允许的，如下所示:

def create
  @user = User.new(user_params)
  if @user.save
    redirect_to @user
  else
    render :new
  end
end

private

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