title: Multiple forms in a single page using flask and WTForms
body: <p>I have multiple form on the same page that send post request to same handler
  in flask.</p>
  
  <p>I am generating forms using wtforms.</p>
  
  <p>what is the best way to identify which form is submitted ?</p>
  
  <p>I am currently using <code>action="?form=oneform"</code>. I think there should be some better method 
  to achieve the same? </p>