我正在使用Django頻道與@channel_session_user
裝飾器(用於訪問Django的會話數據)。Django頻道使用者測試:「沒有reply_channel發送給消費者」
@channel_session_user_from_http
def ws_connect(message):
# creates group names like "group-1"
group_kw = get_group_id_for_user(message.user)
Group(group_kw).add(message.reply_channel)
@channel_session_user
def ws_receive(message):
group_kw = get_group_id_for_user(message.user)
payload = json.loads(message.content['text'])
Channel(payload['action']).send(message.content)
@channel_session_user
def ws_disconnect(message):
group_kw = get_group_id_for_user(message.user)
Group(group_kw).discard(message.reply_channel)
工作正常,但測試時出現問題。
以下測試應該在websocket.receive
通道上放置一條消息,然後ws_receive
應該將該消息放在消息的action
值中定義的通道上。最後,我測試它是否真的放在那個頻道上。
def test_send_chat_message_is_used_by_consumer(self):
# Make sure a user is authenticated
self.assertTrue(auth.get_user(self.client).is_authenticated())
payload = {'action': 'chat.receive',
'msg': 'Test message.',
'receiver': self.user2.id}
message = {'text': json.dumps(payload)}
# Send a chat message
Channel('websocket.receive').send(message)
# Receive it and place it on the right channel
ws_receive(self.get_next_message('websocket.receive', require=True))
# Fetch it from the channel
result = self.get_next_message(payload['action'], require=True)
# That should be the message sent
self.assertEqual(result, message)
取而代之,我得到以下錯誤,指向ws_receive()
調用的行。
ValueError: No reply_channel sent to consumer; @channel_session can only be used on messages containing it.
在頻道源的誤差is raised here。
打印reply_channel
返回None
而不是包含正確的答覆通道名稱。
tmp = self.get_next_message('websocket.receive', require=True)
print(tmp.reply_channel) # prints: None
我忽略了一些明顯的東西?