title: Getting data iterating over wtform fields
body: <p>I've got a form, and number of dynamically adding fields,</p>
  
  <pre><code>class EditBook(Form):
      title = TextField('title', validators = [Required()])
      authors = FieldList(TextField())
  </code></pre>
  
  <p>that's how I append them</p>
  
  <pre><code>$('form').append('&lt;input type="text" class="span4" id="authors-' + FieldCount +'" name="authors-' + FieldCount +'" placeholder="author ' + FieldCount +'"&gt;');
  </code></pre>
  
  <p>I want to get data from theese inputs. how can I iterate over them, using python?</p>
  
  <p>(or how can I send collected data with jquery to server? I'm new to js and jquery)</p>
  
  <p>guess my inputs aren't connected with authors Fieldlist.</p>
  
  <p><strong>UPDATE</strong></p>
  
  <p>my inputs aren't connected with EditBook though I append them to it.</p>
  
  <p>form.data will solve rest of the problem, when I attach my inputs to form. (now I just get keyerror, trying to access form.data['authors-1'])</p>
  
  <p>now I try to add just a single authors field to copy it later.
  but it renders invisible, for unknown reason.
  in blank space should be input, similar to "author-1"</p>
  
  <pre><code>{{form.authors(class="span4", placeholder="author 1")}}
  </code></pre>
  
  <p>what should I add to code to render this field correctly?</p>
  
  <p><img src="https://i.stack.imgur.com/oGIq6.jpg" alt=""></p>