def check_empty(data, model, id):
    res = []
    if not data or (data[0].id == id and len(data) == 1):
        res = model.objects.values_list('id', flat=True)
    else:
        for c in data:
            res += c.get_self_and_childrens_ids()
    #res = list(set(res))
    return res