Mutliple forms in flask

template.html

<!-- put Forms here -->

<input type="submit" name="button" value="Save">
<input type="submit" name="button" value="Cancel">

views.py

# Source: http://flask.pocoo.org/mailinglist/archive/2010/9/12/flask-wtf-multiple-form-per-view/#d8cfeff63b89d028919d4617ed642d15

form1 = FormA(prefix="form1")
form2 = FormB(prefix="form2")
form3 = FormC(prefix="form3")

"""
Then, add a hidden field (or just check a submit field):

The prefix arg will ensure that each form has unique field names - so
form1's submit will be called "form1_submit".
"""

if request.form['button'] == 'Save':
    if form1.validate_on_submit() and form1.submit.data:
        do_save_form_1()
else:
    do_cancel()