使用Devise with Rails登录用户名4 [英] Logging in with username using Devise with Rails 4

问题描述

我正在使用Rails 4.0和Devise 3.0.0.rc。

我已经使用默认设置（即注册/使用您的电子邮件地址）。但是，我希望用户可以使用用户名而不是其电子邮件地址注册。我已经跟踪轨道交通工具，要改变哪些参数，以及我可以在这里找到可能需要为Rails 4更改的任何建议。但是，每当我尝试创建一个新用户时，我收到错误'电子邮件不能为空白。有人有什么想法是什么导致这个，我该如何解决？谢谢!!

代码：

应用程序控制器：

  class ApplicationController< ActionController :: Base 
＃通过引发异常来防止CSRF攻击。 
＃对于API，您可能需要使用：null_session。 
 protect_from_forgery with：：exception 
 before_filter：configure_permitted_pa​​rameters，如果：：devise_controller？ 
 
 protected 
 
 def configure_permitted_pa​​rameters 
 devise_parameter_sanitizer.for（：sign_up）{| u | u.permit（：username，：password，：password_confirmation）} 
 devise_parameter_sanitizer.for（：sign_in）{| u | u.permit（：username，：password，，remember_me）} 
 end 
 end 
  

登录（注册表格几乎相同）：

 <％= form_for（资源，：as = resource_name，：url => session_path（resource_name））do | f | ％GT; 
< div><％= f.label：username％>< br /> 
<％= f.text_field：username，：autofocus => true％>< / div> 
  

在devise.rb配置中：

  config.authentication_keys = [：username] 
  

users controller： / p>

  private 
＃使用回调在动作之间共享共同的设置或约束。 
 def set_user 
 @user = User.find（params [：id]）
 end 
 
＃永远不要相信来自可怕的互联网的参数，只允许白名单通过。 
 def user_params 
 params.require（：user）.permit（：first_name，：middle_names，：last_name，：date_of_birth，：gender，：line_1，：line_2，：line_3，：town，：county， ：邮政编码：contact_number，电子邮件，用户名，密码，密码确认，：remember_me）
结束
  

user.rb：

  protected 
 
 def self.find_for_database_authentication（warden_conditions）
 conditions = warden_conditions.dup 
 login = conditions.delete（：login）
其中（条件）.where（[lower（username）=：value，{：value => login .downcase}]）。first 
 end 
  

解决方案

从用户模型 devise 部分删除可验证选项验证电子邮件地址的存在，唯一性和格式。不过，您必须手动添加自己的密码存在，确认和长度的验证。

I'm using Rails 4.0 and Devise 3.0.0.rc.

I installed Devise with its defaults - i.e. sign up/in using your email address. However, I'd like the users to be able to sign up with a username instead of their email address. I've followed the railscasts in terms of which parameters to change, plus any advice I can find on here for things I might need to change for Rails 4. However, whenever I try to create a new user, I am getting the error 'email can't be blank'. Does anyone have an idea as to what is causing this, and how I can fix it? Thanks!!

Code:

application controller:

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
  before_filter :configure_permitted_parameters, if: :devise_controller?

  protected

   def configure_permitted_parameters
      devise_parameter_sanitizer.for(:sign_up) { |u| u.permit(:username, :password, :password_confirmation) }
      devise_parameter_sanitizer.for(:sign_in) { |u| u.permit(:username, :password, :remember_me) }
    end
end

Sign in (sign up form is pretty much the same):

<%= form_for(resource, :as => resource_name, :url => session_path(resource_name)) do |f| %>
  <div><%= f.label :username %><br />
  <%= f.text_field :username, :autofocus => true %></div>

In devise.rb config:

config.authentication_keys = [ :username ]

users controller:

private
    # Use callbacks to share common setup or constraints between actions.
    def set_user
      @user = User.find(params[:id])
    end

# Never trust parameters from the scary internet, only allow the white list through.
def user_params
  params.require(:user).permit(:first_name, :middle_names, :last_name, :date_of_birth, :gender, :line_1, :line_2, :line_3, :town, :county, :postcode, :contact_number, :email, :username, :password, :password_confirmation, :remember_me)
end

user.rb:

protected

  def self.find_for_database_authentication(warden_conditions)
    conditions = warden_conditions.dup
    login = conditions.delete(:login)
    where(conditions).where(["lower(username) = :value", { :value => login.downcase }]).first
  end

解决方案

Remove validatable from the User model devise section - this option validates the presence, uniqueness and format of the email address. You'll have to manually add your own validations for password presence, confirmation and length, though.

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