Question

我在ruby中使用acts_as_votable作为我的投票系统。现在我可以投票/ downvote并更新计数器。但我想要的是投票，然后再投票并再次投票，但我只能刷新。如果我投票然后投票，我怎样才能将投票结果更新为＆＃34; -1＆＃34;？

控制器：

UseShellExecute

视图：

  def upvote
    @improvement_action.upvote_from current_user  #, :vote_scope => 'upvote'
    respond_to do |format|
    format.json { render json: { count: @improvement_action.get_upvotes.size } }
    format.html {redirect_to :back}
    end
  end

  def downvote
    @improvement_action.downvote_from current_user#, :vote_scope => 'upvote'

    respond_to do |format|
      format.json { render json: { count: @improvement_action.get_downvotes.size } }
      format.html {redirect_to :back}
    end
  end

和application.js：

<%= link_to like_improvement_action_path(improvement_action), class:"btn btn-default stat-item like", method: :put, remote: true, data: { type: :json } do %>
                        <span class="fa fa-thumbs-up icon" aria-hidden="true"></span>
                        <span class="like_number"> <%= improvement_action.get_upvotes.size %></span>
                    <% end %>

   <%= link_to unlike_improvement_action_path(improvement_action), class:"btn btn-default stat-item downvote", method: :put, remote: true, data: { type: :json } do %>
                        <span class="fa fa-thumbs-down icon" aria-hidden="true"></span>
                        <span class="unlike_number"> <%= improvement_action.get_downvotes.size %></span>
                    <% end %>

Answer 1

您可以通过创建两个文件upvote.js.erb和downvote.js.erb，然后添加您希望在此文件中发生的行为来完成此操作。

js code：

$(document).ready(function() {

   $(document).on('click', '.like', function ( {
        $(this).addClass('loading');
   });

   $(document).on('click', '.downvote' ,function (){
        $(this).addClass('loading');
    });
});

upvote.js.erb :(文件名应与控制器中的方法相同）

$('.like').removeClass('loading');
 //updated the below lines in both upvote.js.erb and downvote.js.erb
$('.like_number').html('<%= @improvement_action.get_upvotes.size %>');
$('.unlike_number').html('<%= @improvement_action.get_downvotes.size %>');

downvote.js.erb：

$('.downvote').removeClass('loading');
$('.like_number').html('<%= @improvement_action.get_upvotes.size %>');
$('.unlike_number').html('<%= @improvement_action.get_downvotes.size %>');

ruby on rails：使用ajax投票/取消投票

1 个答案: