title: Is there any way to combine CreateView and UpdateView?
body: <p>I want to show the form present in <code>CreateView</code> if there was no item exists inside a model. Else I need to show the form exists in the <code>UpdateView</code>. So that it would load the already saved values. Later I should save the data to db by calling <a href="https://docs.djangoproject.com/en/1.8/ref/models/querysets/#update-or-create" rel="noreferrer"><code>update_or_create</code></a> method. </p>
  
  <p>Is this possible?</p>