javascript - django channel 不工作 它是如何工作的 我已阅读文档

Question

我尝试使用 channel 但不起作用这是consumer.py

def ws_connect(message, cat_id):
    try:
        cat = Categories.objects.get(pk=cat_id)
    except Categories.DoesNotExist:
        pass
    Group('cat-1').add(message.reply_channel)


def ws_diconnect(message, cat_id):
    try:
        cat = Categories.objects.get(pk=cat_id)

    except Categories.DoesNotExist:
        pass
    Group('cat-1').discard(message.reply_channel)

这是routing.py:

channel_routing = [
    route('websocket.receive', ws_connect, path=r'^/liveupdate/(?P<cat_id>\d+)/'),
    route("websocket.disconnect", ws_diconnect, path=r'^/liveupdate/(?P<cat_id>\d+)/'),
]

这是信号.py:

@receiver(post_save, sender=Tender)
def send_update(sender, instance, created, raw, using, **kwargs):
    print '>>>>>>>>>>>>>>>>>>>>>>>>>>>>', instance, '2', raw, '3', using, '4', kwargs
    data = json.dumps(
        {'ministry': 'hisham',})
    Group('cat-1').send({'tender': data,})
    print 'Done'

这里是 JavaScript :

<script type="application/javascript">
    var ws_scheme = window.location.protocol == "https:" ? "wss" : "ws";
    alert(ws_scheme +"://" + window.location.host + "/liveupdate/1/");
    var socket = new WebSocket(ws_scheme +"://" + window.location.host + "/liveupdate/1/");
    socket.onmessage = function(e) {
    alert(e.data);
};
    socket.onopen = function() {
        console.log("Connected to  socket");
    };
    socket.onclose = function() { console.log("Disconnected to  socket"); }

</script>

当我试图保存招标信号火但浏览器中没有任何内容时即没有数据警报我的代码有什么问题任何想法

这是我的文件夹:

Answer 1

使用websocket.connect代替websocket.receive。当客户端向服务器发送数据时使用接收。

route('websocket.connect', ws_connect, path=r'^/liveupdate/(?P<cat_id>\d+)/'),

何时使用文本作为 key 发送数据而不是投标。

Group('cat-1').send({'text': data,})