如何在rails4视图中从application.js调用js函数

时间:2013-10-12 14:00:36

标签: javascript ruby-on-rails ruby-on-rails-4

我试图在我的一个视图中调用我在application.js中编写的js函数,但由于某种原因,我这样做的方式不起作用

我的视图是一个带有引导模式的表单。我的模态有一个输入字段,我想使用ruby数组作为源

执行自动完成
 <div>
  <%@users = User.all.pluck(:email)%>
  <script> 
        <%= "autoFill(@users)" %>
  </script>

  <% @users.each do |user| %>
  <p><%= user%></p>
  <% end %>

 </div>
<div class="row">

<%= form_for(@note) do |f| %>
  <% if @note.errors.any? %>
    <div id="error_explanation">
      <h2><%= pluralize(@note.errors.count, "error") %> prohibited this note from being saved:</h2>

      <ul>
      <% @note.errors.full_messages.each do |msg| %>
        <li><%= msg %></li>
      <% end %>
      </ul>
    </div>
  <% end %>

  <div class="field">
    <%= f.label :title %><br>
    <%= f.text_field :title %>
  </div>
  <div class="field">
    <%= f.label :content %><br>
    <%= f.text_area :content %>
  </div>
  <div class="actions">
    <%= f.submit  %>
  </div>
  <button type="button" data-toggle="modal" data-target="#myModal">Launch modal</button>

<% end %>

<a href="#myModal" role="button" class="btn" data-toggle="modal">Launch demo modal</a>

<!-- Modal -->
<div id="myModal" class="modal hide fade" tabindex="-1" role="dialog" aria-labelledby="myModalLabel" aria-hidden="true">
  <div class="modal-header">
    <button type="button" class="close" data-dismiss="modal" aria-hidden="true">×</button>
    <h3 id="myModalLabel">Modal header</h3>
  </div>
  <div class="modal-body">
 <input id="emails"></input>
   </div>
  <div class="modal-footer">
    <button class="btn" data-dismiss="modal" aria-hidden="true">Close</button>
    <button class="btn btn-primary">Save changes</button>
  </div>
</div>


</div>

我在application.js中的方法是(目前应该自动完成)

var autoFill = function(emailsList){

  var listOfKeys = emailsList;

    $("#emails").autocomplete({
        minLength: 2,
        source: listOfKeys,
        select: function(event,ui) { 
        if (event.keyCode ==13){ // prevent the trigger of the enter listner from the autocomplete selection.
            return false; // clear the field and cancel the focus on the autocomplete.
        }
        return false; // clear the field and cancel the focus on the autocomplete.
         }
        });
    // set enter listner
    $("#emails").keyup(function(event) {
        if (event.keyCode == 13) {
        $(emails).autocomplete("close");
        }   
    });
};

我尝试按照以下方式将视图添加到方法中,这是我在这里的几个帖子中找到的

 <script> 
        <%= "autoFill(@users)" %>
  </script>

1 个答案:

答案 0 :(得分:0)

确保您的视图/布局中包含您的application.js。 检查Chrome / Firefox控制台也是一个好主意 - 您是否已下载此文件以及该文件的内容是什么?

如果您看到浏览器已加载此文件和函数,请尝试在JS控制台中调用。如果它工作正常,那么也许你认为太早调用这个函数。在这些情况下,最简单的修复是(确保首先加载DOM):

 <script> 
   $(function() { autoFill(<%= @users %>) });
  </script>