if request.method == 'POST': # If the form has been submitted...
form = SandwichForm(request.POST, request.FILES) # A form bound to the POST data
if form.is_valid(): # All validation rules pass
if request.method == 'POST': # If the form has been submitted...
form = SandwichForm(request.POST, request.FILES) # A form bound to the POST data
if form.is_valid(): # All validation rules pass