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我发现这个问题,但并没有看到什么好的答案来:Getting information from Django custom signal receiver如何从特定的django信号接收器获得结果?
这里是我的问题:
内send_signals_and_get_transition_status()函数,我送2个信号,但如果第一信号接收器的check_if_server_connected()响应假我不想执行另一个信号。我如何得到这个特定接收器的响应?我无法在django文档中找到它。
由于响应列表中结果的顺序可能不同,我无法像这样回复[0] [1]。
signals.py:
waiting_for_auto_connect_task = Signal(providing_args=["server_id"])
waiting_for_server_success_tasks = Signal(providing_args=["server_id"])
__init__.py:
def send_signals_and_get_transition_status(server_id):
response = wait_for_auto_connect_task.send(sender=None, server_id=server_id)
logger.debug('First signal response: {}'.format(response))
# Get results from the receiver check_if_server_connected() response
# If response it True only then send another signal
response = waiting_for_server_success_tasks.send(sender=None, server_id=server_id)
# else:
raise CouldNotConnectToTheServerException()
@receiver(wait_for_auto_connect_task)
def check_if_server_connected(sender, **kwargs):
server_id = kwargs["server_id"]
# ...
results = check_if_server_connected_task.apply_async((server_id,))
return results.get()
@receiver(wait_for_auto_connect_task)
def check_if_all_services_are_ready(sender, **kwargs):
server_id = kwargs["server_id"]
# ...
return are_services_ready(server_id)
第一信号响应:
[(<function check_if_server_connected at 0x6875de8>, False), (<function check_if_all_services_are_ready at 0x6875e60>, True)]