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我是RoR的新手,並且遇到了這個設計問題。 我想允許用戶使用電子郵件或用戶名登錄(使用用戶名註冊已經可以)。Rails 4 +設計用電子郵件或用戶名和強大的參數登錄
我跟着這些文章: Article 1和Article 2,你可以看到下面的結果:
application_controller.rb
class ApplicationController < ActionController::Base
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, :email, :password) }
devise_parameter_sanitizer.for(:sign_in) { |u| u.permit(:login, :password, :remember_me) }
end
end
user.rb
class User < ActiveRecord::Base
devise :database_authenticatable, :registerable, :recoverable, :rememberable, :trackable, :validatable, :authentication_keys => [:login]
validates_uniqueness_of :username
validates_presence_of :username
validates :username, length: { in: 4..20 }
def self.find_first_by_auth_conditions(warden_conditions)
conditions = warden_conditions.dup
if login = conditions.delete(:login)
where(conditions).where(["lower(username) = :value OR lower(email) = :value", { :value => login.downcase }]).first
else
where(conditions).first
end
end
end
new.html.erb
<%= form_for(resource, :as => resource_name, :url => session_path(resource_name)) do |f| %>
<div><%= f.label :login, "Pseudo ou email" %><br />
<%= f.text_field :login, :autofocus => true %></div>
...
devise.rb
... config.authentication_keys = [:登錄] ...
結果
Showing /home/action/workspace/rchq/app/views/devise/sessions/new.html.erb where line #5 raised:
undefined method `login' for #<User:0x000000033996a0>
我不明白爲什麼它不工作,因爲我指定了「sign_in」許可證:用戶登錄。
非常感謝,只需添加attr_accessor即可使用:login!自從Rails 4以來,我認爲「attr_accessor」已被強參數取代。 – Dragu
nope,attr_accessible已棄用。這裏是更多關於它:http://stackoverflow.com/questions/3136420/difference-between-attr-accessor-and-attr-accessible – rb512
@Dragu'attr_accessible'被強參數所取代。 'attr_accessor'創建setter/getter方法,在這裏是'login'。它也在創建'@ login'的實例變量 – scarver2