km = request.POST.get('km')
                km = User.objects.filter(id=km).first()
                pm = request.POST.get('pm')
                pm = User.objects.filter(id=pm).first()
                logist = request.POST.get('logist')
                logist = User.objects.filter(id=logist).first()
                konstryktor = request.POST.get('konstryktor')
                konstryktor = User.objects.filter(id=konstryktor).first()
                chat.participants.add(km, pm, logist, konstryktor)