Question

我想让Cancan在我的Rails应用程序上使用Devise。我试着按照这里的说明进行设置：

http://www.tonyamoyal.com/2010/07/28/rails-authentication-with-devise-and-cancan-customizing-devise-controllers/

我遇到了以下错误：

用户中的

ArgumentError :: RegistrationsController #new 错误的参数数量（2对1）

app / models / ability.rb：7：initialize' app/controllers/users/registrations_controller.rb:6:in check_permissions'

我的能力.rb内容如下：

class Ability
  include CanCan::Ability

  def initialize(user)
    user ||= User.new # guest user

    if user.role? :super_admin
      can :manage, :all
    elsif user.role? :admin
      can :manage, :all
    elsif user.role? :user
      can :read, :all
      # manage products, assets he owns
      can :manage, Product do |product|
        product.try(:owner) == user
      end
      can :manage, Asset do |asset|
        asset.assetable.try(:owner) == user
      end
    end
  end
end

我的注册控制器上写着：

class Users::RegistrationsController < Devise::RegistrationsController
  before_filter :check_permissions, :only => [:new, :create, :cancel]
  skip_before_filter :require_no_authentication

  def check_permissions
    authorize! :create, resource
  end
end

这仅发生在注册页面上。应用程序中的所有其他页面都正常工作。

Answer 1

使用cancan时，您必须在控制器中使用以下行。

load_and_authorize_resource

Users :: RegistrationsController #new中的ArgumentError

1 个答案: