如何在Rails 4中为设计注册添加自定义字段？ [英] How do i add a custom field to a devise registration in Rails 4?

问题描述

我正在尝试添加一个字段到我的注册页面使用devise。我遵循Devise文档中的说明。新领域是角色领域。我已经成功地将其迁移到数据库。我现在正试图让它的注册工作。这是新的应用程序控制器：

I am trying to add one field to my registration page that uses devise. I followed the instructions in the Devise document. The new field is the "role" field. I have already succesfully migrated it to the database. I am now trying to make it so that the signup works. Here is the new applicationcontroller:

class ApplicationController < ActionController::Base
  # Prevent CSRF attacks by raising an exception.
  # For APIs, you may want to use :null_session instead.
  protect_from_forgery with: :exception

    def devise_parameter_sanitizer
        if resource_class == User
          User::ParameterSanitizer.new(User, :user, params)
        else
          super # Use the default one
        end
    end
end

这里是更改的用户模型：

And here is the changed User model:

class User::ParameterSanitizer < Devise::ParameterSanitizer
  # Include default devise modules. Others available are:
  # :confirmable, :lockable, :timeoutable and :omniauthable
  devise :database_authenticatable, :registerable,
         :recoverable, :rememberable, :trackable, :validatable

  def sign_up
    default_params.permit(:email, :role)
  end
end 

一旦我添加了这两个文件，服务器甚至无法加载。如何成功添加角色字段？

Once I added these two files, the server cannot even load. How do I successfully add the role field?

编辑

这是我的routes.rb文件

Here is my routes.rb file

devise_for :users
root 'static_pages#home'
get 'student' => 'static_pages#index'

推荐答案

您还可以使用以下方法在设计用户表中添加自定义字段。

You can also use following approach to add custom field in devise user table.

class ApplicationController < ActionController::Base
  # Prevent CSRF attacks by raising an exception.
  # For APIs, you may want to use :null_session instead.

  before_filter :configure_permitted_parameters, if: :devise_controller?

  def configure_permitted_parameters
   devise_parameter_sanitizer.for(:sign_up) { |u| u.permit(:firstname, :lastname, :email, :password, :password_confirmation) } # The :firstname and :lastname are my custom fields.
  end

  protect_from_forgery with: :exception
end 

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