Rails - 投票不保存,并创建不提交的按钮?

时间:2015-07-03 23:55:27

标签: ruby-on-rails

所以我试图创建一个视频游戏评论网站进行练习。

游戏有很多评论和投票。这个想法是,为了发表评论,你必须投票"好"或者"坏"首先,然后提交评论。您无需投票即可发布文字评论。

我试图在没有acts_as_voteable gem的情况下这样做......

投票的数据格式是布尔值。 "良好的"是的,"坏"是假的。

如何获得投票保存?下面是我的routes.rb,_review partial,review controller和show page。

非常感谢你们:)

编辑****:我也试图每个用户只投一票。我正在考虑使用一个等于1的令牌变量,当投票时,令牌为-1。这是一个好方法吗?但是投票的数据类型是布尔值,那么如何工作 - 或者我应该将投票的数据类型从布尔值更改为整数?

编辑#2 - 所以我补充说:投票到我的参数。

的routes.rb

upvote_game_review_path 
POST    /games/:game_id/reviews/:id/upvote(.:format)    reviews#upvote

downvote_game_review_path   
POST    /games/:game_id/reviews/:id/downvote(.:format)  reviews#downvote

Rails.application.routes.draw do

  devise_for :users

  root "games#index"

  resources :games do
    resources :news
    resources :reviews, except: [:show, :index] do
        member do
            post "upvote"
            post "downvote"
        end
    end
  end

  resources :platforms
  resources :genres

end

reviews_controller.rb

class ReviewsController < ApplicationController

    before_action :set_review, only: [:show, :update, :edit, :destroy]
    before_action :set_game
    before_action :authenticate_user!

    def new
        @review = Review.new
    end

    def create
        @review = Review.new(review_params)
        @review.user_id = current_user.id
        @review.game_id = @game.id

        if @review.save
            redirect_to @game
        else
            render "review"
        end
    end

    def upvote
        @review.vote.create = true
        redirect_to @game
    end

    def downvote
        @review.vote.create
        @review.vote = false
        redirect_to @game
    end

    def edit
        @review.update(review.params)
    end

    def destroy
        @review.destroy
        redirect_to @game
    end

    private

    def set_review
        @review = Review.find(params[:id])
    end

    def set_game
        @game = Game.find(params[:game_id])
    end

    def review_params
        params.require(:review).permit(:comment, :vote)
    end

end

_review partial&lt; - 创建新评论

<%= form_for [@game, @reviews.new] do |r| %>

    <h3 class="post_review">Review this game</h3>

    <p>
        <%= r.text_area :comment %>
    </p>

    <p>
        <%= button_to "Good", upvote_game_review_path(@game.id, r) %>
    </p>

    <p>
        <%= button_to "Bad", downvote_game_review_path(@game.id, r) %>
    </p>

    <p>
        <%= r.hidden_field :game_id, value: @game.id %>
    <p>

    <%= r.submit %>

<% end %>

show.html.erb

<p><%= link_to "<< Home", games_path %></p>
<span><%= link_to "Edit", edit_game_path(@game) %></span>
<span><%= link_to "Delete", game_path(@game), method: :delete %></span>

<div class="game_summary">
    <h2><%= @game.title %></h2>
    <%= image_tag @game.image %>
    <p>Release Date: <%= @game.release_date %> </p>
        <p>Genre: <%= @game.genre_id %> </p>
    <p>Platforms: <%= @game.platform_id %></p>
</div>


<%= link_to "Add News", new_game_news_path(@game) %>
<h2>News & Articles</h2>
<%= link_to "view all", game_news_index_path(@game) %>
<% @news.each do |n| %>
    <ol>
        <li><%= link_to n.title, game_news_path(@game.id, n.id) %></li>
    </ol>
<% end %>


<div class="game_review submit">
    <%= render "review" %>
</div>

<% @reviews.each do |review| %>
    <p><%= review.comment %></p>
    <p><%= link_to "delete", game_review_path(@game.id, review.id), method: :delete %></p>
<% end %>

1 个答案:

答案 0 :(得分:0)

您没有指定要加载的评论。原因在于:

before_action :set_review, only: [:show, :update, :edit, :destroy]

当您执行其中任何一项操作时,您都无法提取请求的审核实例。此外,它看起来并非实际保存

所以,我推荐两件事:

  • 将这些方法添加到before_action

    before_action :set_review, only: [:show, :update, :edit,
                                      :destroy, :upvote, :downvote]
    
  • (可能没有必要,编写测试来确认这一点!)实际上在您更改其值后保存实体。

    def upvote
      @review.vote.create = true
      @review.save
      redirect_to @game
    end
    
    def downvote
      @review.vote.create unless @review.vote
      @review.vote = false
      @review.save
      redirect_to @game
    end