Multiple forms in a single page using flask and WTForms -

i have multiple form on same page send post request same handler in flask.

i generating forms using wtforms.

what best way identify form submitted ?

i using action="?form=oneform". think there should better method achieve same?

i've been using combination of 2 flask snippets. the first adds prefix form , check prefix validate_on_submit(). i use louis roché's template determine buttons pushed in form.

to quote dan jacob:

example:

form1 = forma(prefix="form1") form2 = formb(prefix="form2") form3 = formc(prefix="form3") 

then, add hidden field (or check submit field):

if form1.validate_on_submit() , form1.submit.data: 

to quote louis roché's:

i have in template :

<input type="submit" name="btn" value="save"> <input type="submit" name="btn" value="cancel"> 

and figure out button passed server side have in views.py file:

if request.form['btn'] == 'save':     something0 else:     something1