javascript - Dynamically Adding images to Bootstrap Carousel in Rails 4 app -


i'm using active admin upload images app, working fine. want uploaded images displayed in bootstrap carrousel. lack of experience using rails , javascript limits me result want.

the javascript console throws error :

carousel.self-e47323f….js?body=1:148 uncaught typeerror: cannot read property 'offsetwidth' of undefined(…)   carousel.slide @ carousel.self-e47323f….js?body=1:148   carousel.next @ carousel.self-e47323f….js?body=1:110   (anonymous function) @ carousel.self-e47323f….js?body=1:186   each @ jquery.self-bd7ddd3….js?body=1:371   each @ jquery.self-bd7ddd3….js?body=1:138   plugin @ carousel.self-e47323f….js?body=1:178   clickhandler @ carousel.self-e47323f….js?body=1:218   dispatch @ jquery.self-bd7ddd3….js?body=1:5227   elemdata.handle @ jquery.self-bd7ddd3….js?body=1:4879

edit looked @ possible duplicate, can see how might possible duplicate, i´m not sure on how integrate ruby loopinto javascript.

can advise me please. code below

edited updated code

<div id="carousel-example-generic" class="carousel slide" data-ride="carousel"> <!-- indicators --> <ol class="carousel-indicators">   <li data-target="#carousel-example-generic" data-slide-to="0" class="active"></li>   <li data-target="#carousel-example-generic" data-slide-to="1"></li>   <li data-target="#carousel-example-generic" data-slide-to="2"></li> </ol>  <!-- wrapper slides -->   <div class="carousel-inner" role="listbox">    <% @product.photos.each_with_index |photo, index| %>                         <div class="item #{"active" if index.zero? }">   <%= image_tag(photo.image.url(:large)) %>                        </div>   <% end %>     ...   </div>     <!-- controls -->    <a class="left carousel-control" href="#carousel-example-generic" 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="#carousel-example-generic" role="button" data-slide="next">      <span class="glyphicon glyphicon-chevron-right" aria-hidden="true"> </span>      <span class="sr-only">next</span>    </a>  </div>   <script type="text/javascript">    $('.carousel').carousel({    interval: 2000    })  </script>

probably missing class 'active' or class 'active' added items. add class 'active' photo want show first.

below code add class 'active' first image.

<% @product.photos.each_with_index |photo, index| %>                        <div class="item #{"active" if index.zero? }">     <%= image_tag(photo.image.url(:large)) %>                       </div> <% end %>

also please check javascript errors on page.


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