I have m2m field, lets say it have name \'relations\', so i want to allow user to send as many relations as he wants. I add new input to html with javascript with same name,
You don't need to grab all the raw values, you can just get the specific data by using element name like this:
relations = request.form.getlist('relations')
That will return a list of values in the relations input.
I don't know how to do that with Forms, but if you want to grab the values in the raw way, here's how I'd do:
relations = request.POST.getlist('relations')
this generate a list, you can manipulate in for
request.POST.getlist('relations')