管理条件In Devise with Rails 5

Question

give adminにブール値を追加して管理者ユーザーを作成しました。問題は、私が管理者になるようにユーザーを設定したときに、投稿の表示ページに条件を設定したにもかかわらず、アプリケーションで投稿を削除または編集できないことです。私はユーザー認証のためにDeivse gemを使用しています。ここに私のコードです：

BurgersController.rb

class BurgersController < ApplicationController 
    before_action :authenticate_user! , except: [:index,:show,:search] 
    before_action :set_burger, only: [:show, :edit, :update, :destroy,:upvote] 
    before_action :check_user , only: [:edit,:update,:destroy] 


    # GET /burgers 
    # GET /burgers.json 

    def search 
    if params[:search].present? 
    @burgers = Burger.search(params[:search]) 
    else 
    @burgers = Burger.all 
    end 
    end 
    def index 
    if params[:tag] 
     @burgers = Burger.tagged_with(params[:tag]) 
    else 
     @burgers = Burger.all 
    end 
    end 

    # GET /burgers/1 
    # GET /burgers/1.json 
    def show 
    end 

    # GET /burgers/new 
def new 
    @burger = Burger.new 
    end 

    # GET /burgers/1/edit 
    def edit 
    end 

    # POST /burgers 
    # POST /burgers.json 
    def create 
    @burger = Burger.new(burger_params) 
    @burger.user_id = current_user.id 

    respond_to do |format| 
     if @burger.save 
     format.html { redirect_to @burger, notice: 'Burger was successfully created.' } 
     format.json { render :show, status: :created, location: @burger } 
     else 
     format.html { render :new } 
     format.json { render json: @burger.errors, status: :unprocessable_entity } 
     end 
    end 
    end 

    # PATCH/PUT /burgers/1 
    # PATCH/PUT /burgers/1.json 
    def update 
    respond_to do |format| 
     if @burger.update(burger_params) 
     format.html { redirect_to @burger, notice: 'Burger was successfully updated.' } 
     format.json { render :show, status: :ok, location: @burger } 
     else 
     format.html { render :edit } 
     format.json { render json: @burger.errors, status: :unprocessable_entity } 
     end 
    end 
    end 

    # DELETE /burgers/1 
    # DELETE /burgers/1.json 
    def destroy 
    @burger.destroy 
    respond_to do |format| 
     format.html { redirect_to burgers_url, notice: 'Burger was successfully destroyed.' } 
     format.json { head :no_content } 
    end 
    end 

    def upvote 
     @burger.upvote_by current_user 
    redirect_to :back 
    end 

    private 
    # Use callbacks to share common setup or constraints between actions. 
    def set_burger 
     @burger = Burger.find(params[:id]) 
    end 

    # Never trust parameters from the scary internet, only allow the white list through. 
    def burger_params 
     params.require(:burger).permit(:name, :resturant, :place, :price,:image,:tag_list) 
    end 

    def check_user 
     unless @burger.user == current_user || current_user.admin? 
     redirect_to root_url , alert: "Sorry this listing belongs to someone else" 
     end 
    end 

end 

ビュー/ハンバーガー/ show.html.erb

<div class="row"> 
     <div class="col-md-12"> 
     <div class="thumbnail"> 
      <%= image_tag @burger.image_url.to_s, class: 'center-block'%> 
     </div> 

     </div> 
     <div class="col-md-6"> 
      <h2><%= @burger.name %><br></h2> 
      <%= @burger.resturant %><br> 
      <%= @burger.place %><br> 
      <%= number_to_currency(@burger.price, raise: true) %><br> 
      <p>Tags: <%= @burger.tag_list %></p> 
     </div> 



     </div> 
    <% if user_signed_in? && current_user == @burger.user || current_user.try(:admin?) %> 
     <%= link_to 'Edit', edit_burger_path(@burger) %> | 
     <%= link_to 'Back', burgers_path %> 
     <%= link_to 'Delete', @burger, method: :delete, data: {confirm: "Are you Sure ?"} %> 
     <%end%> 

    </div> 

</div> 

schema.rb

create_table "users", force: :cascade do |t| 
    t.string "email",     default: "", null: false 
    t.string "encrypted_password",  default: "", null: false 
    t.string "reset_password_token" 
    t.datetime "reset_password_sent_at" 
    t.datetime "remember_created_at" 
    t.integer "sign_in_count",   default: 0,  null: false 
    t.datetime "current_sign_in_at" 
    t.datetime "last_sign_in_at" 
    t.string "current_sign_in_ip" 
    t.string "last_sign_in_ip" 
    t.datetime "created_at",        null: false 
    t.datetime "updated_at",        null: false 
    t.string "name" 
    t.boolean "admin",     default: false 
    t.index ["email"], name: "index_users_on_email", unique: true 
    t.index ["reset_password_token"], name: "index_users_on_reset_password_token", unique: true 
    end 

Answer 1

どうすれば

if (user_signed_in? && current_user == @burger.user) || current_user.admin?