我使用Devise进行身份验证,使用cancancan进行授权。现在我想不允许某些页面的视图用户。所以我添加了以下代码。但它为 # 错误抛出未定义的局部变量或方法"current_user"。
我的能力.rb
class Ability
include CanCan::Ability
def initialize(dashboard_user)
current_dashboard_user ||= DashboardUser.new
if current_dashboard_user.CD_DASHBOARD_ADMIN?
can :manage, :all
else
can :read, :summary
can :read, :home
end
.........
end
Application_controller.rb
class ApplicationController < ActionController::Base
protect_from_forgery with: :exception
before_action :configure_permitted_parameters, if: :devise_controller?
before_action :authenticate_dashboard_user!
protected
rescue_from CanCan::AccessDenied do |exception|
redirect_to main_app.root_url, :alert => exception.message
end
....
end
dashboard_user_controller.rb
class DashboardUsersController < ApplicationController
before_action :set_dashboard_user, only: [:show, :edit, :update, :destroy]
load_and_authorize_resource
....
end
Okey,现在就做这个技巧。以某种方式调用了current_user帮助程序方法。因此,最快的解决方案是如果您可以执行以下操作。
在您的application_controller.rb
文件中放置此块:
def current_user
current_dashboard_user
end
# method_alias :current_user=, current_user # you may need this line if required.
helper_method: :current_user
我希望这会有所帮助。