Question

我已经在Nitrous.io上使用Active Admin创建了一个rails应用程序，并且所有人都在该开发环境中工作。我正在使用Devise / CanCanCan进行身份验证/授权

当我推送到heroku并尝试访问Active Admin时，我收到以下错误：

Started GET "/admin" for 91.226.23.198 at 2014-09-06 21:15:49 +0000                                                                                                                                                            
Processing by Admin::ProductsController#index as HTML                                                                                                                                                                          
NoMethodError (undefined method `include?' for nil:NilClass):                                                                                                                                                                  
app/models/user.rb:8:in `role?'                                                                                                                                                                                              
app/models/ability.rb:6:in `initialize'

我的用户模型是这样的：

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

  def role?(r)
      role.include? r.to_s
    end
end

Ability.rb

class Ability
  include CanCan::Ability

  def initialize(user)
    user ||= User.new # guest user (not logged in)
      if user.role? :administrator
        can :manage, :all
      elsif user.role? :moderator
          can :manage, Product
          can :manage, User, :id => user.id
              cannot :destroy, User
          #can :read, ActiveAdmin::Page, :name => "Dashboard"
          can :read, ActiveAdmin::Page, :name => "Contact Us"
          can :read, ActiveAdmin::Page, :name => "About x"
          can :read, ActiveAdmin::Page, :name => "FAQ"
          #can :manage, [Page, Unit, Category, News]
    else
        can :read, Product
        can :manage, User, :id => user.id
            cannot :destroy, User
        #can :read, ActiveAdmin::Page, :name => "Dashboard"
        can :read, ActiveAdmin::Page, :name => "Contact Us"
        can :read, ActiveAdmin::Page, :name => "About x"
        can :read, ActiveAdmin::Page, :name => "FAQ"
    end
end
end

我做错了什么？

我已尝试多次重启heroku服务器。

感谢您的帮助。

干杯！

Answer 1

好的，终于找到了解决这个问题的方法。问题是Active Admin创建的默认用户没有包含角色，所以我为一个用户设置了一个角色='管理员'，并且能够使用该用户登录并且一切正常。

感谢您的帮助。

部署rails应用程序到Heroku不工作

1 个答案: