class Person(models.Model):
    name=models.CharField(max_length=120)
    surname=models.CharField(max_length=100)

class PersonForm(ModelForm):
    class Meta:
        model=Person

def index(request, template='mainpage.html'):
    if request.method=='POST':
        personform=PersonForm(request.POST)
        if personform.is_valid():
            personform.save()
    else:
        personform=PersonForm()
    return render_to_response(template, {'personform': personform})

Forbidden (403)
CSRF verification failed. Request aborted.