Question

现在如果按下索引页面上的按钮，按钮会立即将“跟随”更改为“取消跟随”。但是，在展会页面上，什么都不会发生。我该如何解决这个问题？

视图/用户/ show.html.erb

<h1>Users#show</h1>

<p id="notice"><%= notice %></p>

<p>
  <b>User:</b>
  <%= @user.user_profile.user_id %>
</p>

<p>
  <b>Language:</b>
  <%= @user.user_profile.language_id %>
</p>

<p>
  <b>Country:</b>
  <%= @user.user_profile.country_id %>
</p>

<p>
  <b>Prefecture:</b>
  <%= @user.user_profile.prefecture_id %>
</p>

<p>
  <b>Gender:</b>
  <%= @user.user_profile.gender_id %>
</p>

<p>
  <b>Nickname:</b>
  <%= @user.user_profile.nickname %>
</p>

<p>
  <b>Introduction:</b>
  <%= @user.user_profile.introduction %>
</p>

<p>
  <b>Picture url:</b>
  <%= @user.user_profile.picture_url %>
</p>


<p>
  <b>Tag List:</b>
  <% @user.tags.each do |tag| %>
  <span><%= link_to tag.name, {:action=>'index', :tag=>tag.name} %></span>
<% end %>
</p>


<% if user_signed_in? %>
  <div id="follow_user" data-user-id="<%= @user.id %>">
    <%= render :partial => "follow_user", :locals => {:user => @user} %>
  </div>
<% end %>

follows_controller.rb

class FollowsController < ApplicationController

  def create
    @user = User.find(params[:user_id])
    current_user.follow(@user)
    respond_to do |format|
      format.js {render :action=>"create.js"}
      end
  end

  def destroy
    @user = User.find(params[:user_id])
    current_user.stop_following(@user)
    respond_to do |format|
      format.js {render :action=>"destroy.js"}
  end
end

end

视图/用户/ _follow_user.html.erb

<% unless user == current_user %>
    <% if current_user.following?(user) %>
        <%= button_to("Un-Follow", user_follow_path(user.to_param, current_user.get_follow(user).id), 
        :method => :delete, 
        :remote => true, 
        :class => 'btn') %>
    <% else %>
        <%= button_to("Follow", user_follows_path(user.to_param), 
        :remote => true, 
        :class => 'btn btn-primary') %>
    <% end %>
<% end %>

视图/如下/ create.js.erb

$('.follow_user[data-user-id="<%=@user.id%>"]').html('<%= escape_javascript(render :partial => "follow_user", :locals => {:user => @user}) %>');
#jQuery

视图/如下/ destroy.js.erb

$('.follow_user[data-user-id="<%=@user.id%>"]').html('<%= escape_javascript(render :partial => "follow_user", :locals => {:user => @user}) %>');
#jQuery

视图/用户/ index.html.erb

<%- model_class = User.new.class -%>
<div class="page-header">
  <h1><%=t '.title', :default => model_class.model_name.human.pluralize %></h1>
</div>
  <% @from %>
  <h3>tag cloud</h3>
  <% tag_cloud(@tags, %w(css1 css2 css3 css4)) do |tag, css_class| %>
    <%= link_to tag.name, {:action=>'index', :tag=>tag.name}, :class => css_class%>
  <% end %> 


<%= paginate @users %>

<table class="table table-condensed">
  <thead></thead>
    <tbody>
    <% @users.each do |user| %>  
      <div class="memberListBox">
        <div class="memberList">
            <p class="name"><span><%= user.user_profile.nickname %></span>(<%= user.user_profile.age %>)</p>
            <p class="size"><%= user.username %></p>
            <p class="img">
            <% if user.user_profile.user_avatar? %>
            <%= image_tag(user.user_profile.user_avatar.url(:thumb),:height => 100, :width => 100, :class => 'img-polaroid' ) %>
            <% else %>
            <%= image_tag('nophoto.gif',:height => 100, :width => 100, :class => 'img-polaroid' ) %>
            <% end %>
            </p>
            <div class="introduction">
                <%= user.user_profile.introduction %>
            </div>

<% if user_signed_in? && current_user!=user %>          
<div class="follow_user" data-user-id="<%= user.id %>">
  <%= render :partial => "follow_user", :locals => {:user => user} %>
</div>
<% end %>

  <%= link_to sanitize('<i class="icon-pencil icon-white"></i> ') + 'Message', new_messages_path(user.username), :class => 'btn btn-primary'  %>


                <%= link_to sanitize('<i class="icon-user icon-white"></i> ') + 'Profile', show_user_path(:username => user.username, :breadcrumb => @from), :class => 'btn btn-info' %>              

        </div>
    </div>
   <% end %>
  </tbody>  
</table>

Answer 1

视图包含follow_user ID 的DIV。

JS partial试图选择follow_user 类。

# views/users/show.html.erb
<div id="follow_user"...

# views/follows/create.js.erb
$('.follow_user[data-user-id=...

我记得last question follow show部分视图在全站点使用，所以你无法真正改变它们。因此，请将follow_user视图更改为使用# views/users/show.html.erb <div class="follow_user"...类：

{{1}}

为什么Ajax不会反映节目而是索引？

1 个答案: