Pundit 在 Rails 4 应用程序中授权 @user 时出错 [Pundit::NotAuthorizedError in UsersController#destroy]

Question

我在 Rails 4 应用程序中尝试删除用户时遇到以下错误。

Pundit::NotAuthorizedError in UsersController#destroy
not allowed to destroy? this #<User:0x005595f691bd10>
Extracted source (around line #30):    
        @user = User.find(params[:id])
        # debugger
        authorize current_user
        @user.destroy
        redirect_to users_path, :notice => "User deleted."
     end

我正在给 用户控制器 波纹管：

class UsersController < ApplicationController
    before_filter :authenticate_user!


    before_action :set_menu

    def index
        @users = User.all.page(params[:page]).per(8)
        authorize @users
    end

    def show
        @user = User.find(params[:id])
        authorize @user
  end

  def update
        @user = User.find(params[:id])
        #authorize @user
        if @user.update_attributes(secure_params)
          redirect_to users_path, :notice => "User updated."
        else
          redirect_to users_path, :alert => "Unable to update user."
        end
     end

     def destroy
        @user = User.find(params[:id])
        authorize @user
        @user.destroy
        redirect_to users_path, :notice => "User deleted."
     end

     private

     def secure_params
       params.require(:user).permit(:role)
     end

     def set_menu
        store_menu("User")
    end

end

下面是我的用户模型代码

class User < ActiveRecord::Base

  enum role: [:admin,:user]
  after_initialize :set_default_role, :if => :new_record?

  def set_default_role
    self.role ||= :user
  end
  # Include default devise modules. Others available are:
  # :confirmable, :lockable, :timeoutable and :omniauthable
  devise :database_authenticatable, :registerable,
         :recoverable, :rememberable, :trackable, :validatable

  has_one :customer
  # has_one :customer, dependent: :destroy
end

下面是我的用户政策文件

class UserPolicy < ApplicationPolicy
  attr_reader :user, :model

  def initialize(user, model)
    @user = user
    @model = model
  end

  def index?
    @user.admin?
  end
  class Scope < Scope
    def resolve
      scope
    end
  end

end

如何解决特定用户的删除或销毁操作错误？

Answer 1

您应该在 user_policy.rb 中添加删除方法，如下所示

def destroy?
  current_user = @user
end

让销毁工作。