作为可投票vote_registered？

Question

我已经在我的Rails应用中实现了可投票的行为，并且一切顺利。

根据它的git：https://github.com/ryanto/acts_as_votable它说有一种方法叫vote_registered？检查投票是否有效，如果用户以前已投票。

它说：

要检查选票计数，或注册，使用vote_registered？投票后在您的模型上。例如：

@ hat.liked_by @user

@ hat.vote_registered？ ＃=> true

我只是想试一试它的一些帮助。

谢谢。

我已经在我的articles_controller中尝试了这一点，但从操作控制器中获取错误，如丢失模板文章/ upvote，application/upvote with {：locale => [：en]，：formats => [：html]，：variants => []：处理程序=> [：ERB，：建设者，：生，：红宝石，：咖啡：JBuilder中]}

def upvote 
@article.upvote_by current_user 
if @article.vote_registered? 
    flash[:success] = "Successfully liked" 
    respond_to do |format| 
    format.html {redirect_to :back } 
    format.json { render json: { count: @article.get_upvotes.size } } 
    end 
else 
    flash[:danger] = "You have already liked this" 
end 
    end 

从与当前工作的投票我的文章控制器：

def upvote 
    @article.upvote_by current_user 
    flash[:success] = "Successfully liked" 
    respond_to do |format| 
     format.html {redirect_to :back } 
     format.json { render json: { count: @article.get_upvotes.size } } 
    end 
    end 
    def downvote 
    @article.downvote_by current_user 
    flash[:success] = "Successfully disliked" 
    respond_to do |format| 
     format.html {redirect_to :back } 
     format.json { render json: { count: @article.get_downvotes.size } } 
    end 
    end 

产品型号：

class Article < ActiveRecord::Base 
    validates :title, presence: true 
    validates :body, presence: true 

    belongs_to :user 
    acts_as_votable 
    has_many :comments, dependent: :destroy 

    default_scope { order(created_at: :desc)} 
end 

从网页投票时：

<h1 class="article-detail-title"><%= @article.title %></h1> 
    <div class="votes" id="likes-dislikes"> 
     <hr> 
    <%= link_to like_article_path(@article), method: :put, class: 'voting' do %> 
     <i class="fa fa-thumbs-up"></i> 
     <%= @article.get_upvotes.size %> 
    <% end %> 
    <%= link_to dislike_article_path(@article), method: :put, class: 'voting' do %> 
     <i class="fa fa-thumbs-down"></i> 
     <%= @article.get_downvotes.size %> 
    <% end %> 

    <div class="glyphicon glyphicon-calendar" id="article-date"> 
     <%= @article.created_at.strftime("%b %d, %Y") %> 
    </div> 
    <hr> 
    </div> 

路线：

Rails.application.routes.draw do 

    devise_for :users, :controllers => {registrations: "registrations", sessions: "sessions", :omniauth_callbacks => "callbacks"} 
    # The priority is based upon order of creation: first created -> highest priority. 
    # See how all your routes lay out with "rake routes". 

    # You can have the root of your site routed with "root" 
    root to: 'articles#index' 
    resources :articles do 
    member do 
     put "like", to: "articles#upvote" 
     put "dislike", to: "articles#downvote" 
    end 
    resources :comments 
    end 
end 

Answer 1

好吧，我想通了。我很接近，只需要将用户推回到现有页面。

def upvote 
    @article.upvote_by current_user 
    if @article.vote_registered? 
     flash[:success] = "Successfully liked" 
     respond_to do |format| 
     format.html {redirect_to :back } 
     format.json { render json: { count: @article.get_upvotes.size } } 
     end 
    else 
     flash[:danger] = "You have already liked this" 
     respond_to do |format| 
     format.html {redirect_to :back } 
     end 
    end 
    end 
    def downvote 
    @article.downvote_by current_user 
    if @article.vote_registered? 
     flash[:success] = "Successfully disliked" 
     respond_to do |format| 
     format.html {redirect_to :back } 
     format.json { render json: { count: @article.get_downvotes.size } } 
    end 
    else 
     flash[:danger] = "You have already disliked this" 
     respond_to do |format| 
     format.html {redirect_to :back } 
     end 
    end 
    end