Question

所以我有一个应用程序，有点像meetup.com，用户可以创建事件，评论事件，通过GPS半径搜索事件。但是，我想让用户点击'参加'按钮，然后在events / show.html.erb页面上显示哪些用户正在参加...

我该怎么做？

当前事件show.html.erb

<%= render 'shared/header' %>                                                                                                                                 

<div class="container">                                                                                                                                       
  <div class="row">                                                                                                                                           
    <div class="span3">                                                                                                                                       
      <%= render 'sidebar' %>                                                                                                                                 
    </div>                                                                                                                                                    
    <div class="span5">                                                                                                                                       
      <div class="new_event_form">                                                                                                                            
        <div class="line1"><h4>Create event</h4></div>                                                                                                        
        <%= form_for current_user.events.new, remote: true do |f| %>                                                                                          
          <h5>Event title:</h5>                                                                                                                               
          <div><%= f.text_field :title, placeholder: "Event title", required: true, autocomplete: :off %></div>                                               
          <h5>Event description:</h5>                                                                                                                         
          <div><%= f.text_area :description, placeholder: "Event description", required: true, autocomplete: :off %></div>                                    
          <h5>Event date:</h5>                                                                                                                                
          <div><%= f.text_field :date  %></div>                                                                                                               
          <h5>Event location:</h5>                                                                                                                            
          <div><%= f.text_field :location, placeholder: "Event location", required: true, autocomplete: :off %></div>                                         
          <div>                                                                                                                                               
            <%= f.submit "Create event", class: 'btn btn-primary' %>                                                                                          
            <%= link_to "Cancel", '#', class: 'btn cancel_event' %>                                                                                           
          </div><br />                                                                                                                                        
        <% end %>                                                                                                                                             
      </div>                                                                                                                                                  
      <div class="events_list">                                                                                                                               
        <!-- look in events/event.hmlt.erb -->                                                                                                                
        <h4><%= @event.title %> at <%= @event.location %></h4>                                                                                                
        <p><%= @event.description %></p>                                                                                                                      
        <h5><i class="fa fa-calendar-o"></i> <%= @event.date.strftime("%A, %B %d, %Y") %></h5>                                                                
        <h5><i class="fa fa-clock-o"></i> <%= @event.time %></h5>                                                                                             
        <h5><i class="fa fa-map-marker"></i> <%= @event.location %></h5>                                                                                      
      </div>                                                                                                                                                  
      <div class="name"></div>                                                                                                                                

            <%= form_for [@commentable, @comment], remote: true do |f| %> 
...........and so on...

先谢谢！

Answer 1

您需要在routes.rb和事件控制器中定义“出席”操作，然后为其创建attend.html.erb表单。

编辑：在routes.rb

中

 resources :events do
   post 'attend', on: :member
 end

在events_controller中

def attend
  @event.attendees << current_user
  @event.save
end

show.html.erb中的

 <%= button_to 'Attend', attend_event_path(@event), method: :post, confirm: 'really?' %>

并制作一个很好的attend.html.erb来表示“感谢您注册”

如何让用户参加活动？

1 个答案: