Rails中的Bootstrap Carousel

Question

我正在处理一个文件夹里面有几个图像的项目.我有Bootstrap正在处理我的项目,并试图使用本教程在旋转木马上工作.它似乎非常适合我的需求,但我很难将它混合到我的Ruby视图中.这是我到目前为止所得到的:

<div id="myCarousel" class="carousel slide" data-ride="carousel">
  <!-- Indicators -->
  <ol class="carousel-indicators">
    <% @patient.images.each do |image| %>
    <li data-target="#myCarousel" data-slide-to="0" class="active"></li>
    <% end %>
  </ol>

  <!-- Wrapper for slides -->

      <div class="carousel-inner" role="listbox">
       <div class="item active">
        <% @patient.images.each do |image| %>
        <%= image_tag image.image_file.url %>
        <% end %>
        </div>
      </div>


<!-- Left and right controls -->
  <a class="left carousel-control" href="#myCarousel" role="button" data-slide="prev">
    <span class="glyphicon glyphicon-chevron-left" aria-hidden="true"></span>
    <span class="sr-only">Previous</span>
  </a>
  <a class="right carousel-control" href="#myCarousel" role="button" data-slide="next">
    <span class="glyphicon glyphicon-chevron-right" aria-hidden="true"></span>
    <span class="sr-only">Next</span>
  </a>
</div>
</div>

我想我的语法/顺序问题我的div和我的图像标签所在,但移动它们不会改变任何东西.我要做的是为每个图像分别绘制一张幻灯片,但是使用当前代码似乎想要将所有图像放在一张幻灯片中.

Answer 1

这部分:

<ol class="carousel-indicators">
  <% @patient.images.each do |image| %>
    <li data-target="#myCarousel" data-slide-to="0" class="active"></li>
  <% end %>
</ol>

需要改为:

<ol class="carousel-indicators">
  <% @patient.images.each_with_index do |image, index| %>
    <li data-target="#myCarousel" data-slide-to="<%= index %>" class="<%= index == 0 ? 'active' : '' %>"></li>
  <% end %>
</ol>

而这部分:

<div class="carousel-inner" role="listbox">
 <div class="item active">
  <% @patient.images.each do |image| %>
    <%= image_tag image.image_file.url %>
  <% end %>
 </div>
</div>

需要像这样:

<div class="carousel-inner" role="listbox">
  <% @patient.images.each_with_index do |image, index| %>     
    <div class="item <%= index == 0 ? 'active' : '' %>">
      <%= image_tag image.image_file.url %>
    <end>
  <% end %>
</div>

请让我知道这对你有没有用.

Answer 2

我就是这样做的：

<ol class="carousel-indicators">
   <% @patient.images.each_with_index do |photo, n| %>
     <li data-target='#MyCarousel' data-slide-to="#{n}" class="#{'active' if n == 0}"></li>
   <% end %>
</ol>

<div class="carousel-inner" role="listbox">
  <div class="item active">
    <%= image_tag @patient.images.first.image_file.url %>
  </div>
  <% @patient.images.drop(1).each do |photo| %>
     <div class="item">
       <%= image_tag photo.image_file.url %>
     </div>
  <% end %>
</div>