def save_model(self, request, obj, form, change):
    obj.user = request.user
    super(BaseUpdateAdmin, self).save_model(request, obj, form, change)
    if (not change):
        async_task(self.task_function, obj, task_name=self.task_name, batch_size=10000)
def save_model(self, request, obj, form, change):
    obj.user = request.user
    super(BaseUpdateAdmin, self).save_model(request, obj, form, change)
    if (not change):
        async_task(self.task_function, obj, task_name=self.task_name, batch_size=10000)