title: Using simple_form to set data-content
body: <p>I'm using Simple_form with Rails 3.2.1</p>
  
  <p>All fine, except that I need to set the 'data-content' attribute for the input_html for bootstrap popover</p>
  
  <p>However, when I use the following Rails/Ruby doesn't like the code as there is a dash in the 'data-content' method:</p>
  
  <pre><code>&lt;%= f.input :first_name, :required =&gt; true, :label =&gt; "First Name", :autofocus =&gt; true, :input_html =&gt; {:rel =&gt; "tooltip", :title =&gt; "Testing!", :data-content =&gt; "Popover content"} 
  </code></pre>
  
  <p>and i get an error:</p>
  
  <pre><code> undefined local variable or method `content'
  </code></pre>
  
  <p>Does anyone know how you can set data-content for input elements using simple_form???</p>
  
  <p>thanks</p>