Question

我有链接访问玩家的load_player视图以访问属于current_user的玩家。那么我如何限制对没有归属俱乐部或俱乐部属于其他用户的current_user的load_player方法的访问。注意我想限制访问load_player页面。

routes.rb

get 'player/load_player/:id' => "player#load_player", as: :player

player_controller.rb

class PlayerController < ApplicationController

  before_action :authenticate_user!
  authorize_resource :class => false

  layout "player"

  def load_player
    @club_hash = Club.where({:id =>   params[:id]}).pluck(:club_hash).first
  end
end

ability.rb

class Ability
  include CanCan::Ability
  def initialize(user)
    user ||= User.new # guest user (not logged in)

    if user.is?(:admin)
      can :manage, :all
    elsif user.is?(:owner)
      can :read, all: { except: [UploadedSong]}
      can :manage, Club, user_id: user.id
      can :read, :load_player, id: user.id
    elsif user.is?(:user)
      can :read, all: { except: [UploadedSong]}
    end    
  end
end

Answer 1

current_user.clubs.where(id: params[:id]).pluck(:club_hash).try(:first)

# or add user_id inside where clause

Club.where(id: params[:id], user_id: current_user.id).pluck(:club_hash).try(:first)

希望这能解决你的问题：）

使用cancancan授权特定的控制器操作

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