在 Flask Socket IO 聊天中设置动态聊天室

Posted 2023-04-18

【中文标题】在 Flask Socket IO 聊天中设置动态聊天室

【英文标题】：Setting up dynamic chat rooms in FlaskSocketIO chat

【发布时间】：2019-12-08 15:58:38

【问题描述】：

我想让我的迷你聊天的用户动态地创建他们的房间。现在我在烧瓶服务器应用程序中得到了 const：

# Predefined rooms for chat
ROOMS = ["Lounge", "news", "games", "coding", "food", "cars"]

并且用户加入/离开路线在烧瓶中：

@socketio.on('join')
def on_join(data):
    username = data["username"]
    room = data["room"]
    join_room(room)
    # Notofication about new user joined room
    send("msg": username + " has joined the " + room + " room.", room=room)

@socketio.on('leave')
def on_leave(data):
    leave_room(data['room'])
    # Notification about leaving users
    send('msg': data['username'] + " has left the " + data['room'], room=data['room'])

在 js 上。喜欢它：

// Select a room
document.querySelectorAll('.select-room').forEach(p => 
    p.onclick = () => 
        let newRoom = p.innerhtml
        // Check if user already in the room
        if (newRoom === room) 
            msg = `You are already in $room room.`;
            printSysMsg(msg);
         else 
            leaveRoom(room);
            joinRoom(newRoom);
            room = newRoom;
        
    ;
);

// Trigger 'join' event
    function joinRoom(room) 
        // Join room
        socket.emit('join', 'username': username, 'room': room);

// Trigger 'leave' event if user was previously on a room
    function leaveRoom(room) 
        socket.emit('leave', 'username': username, 'room': room);

我如何让用户加入他们动态创建的房间？

【问题讨论】：

这是选择自定义房间所需的 javascript UI 更改的问题，还是 Socket.IO 服务器特有的问题？

@Miguel 我认为在两者中，我都不知道如何让用户在两侧创建动态房间

我能回答的部分是Socket.IO端。这很简单，只需使用所需的房间名称即可。房间是在第一次使用时创建的，因此创建房间所需要做的唯一事情就是让某人加入。

我认为你的函数缺少一个右花括号...我希望在你的真实代码中不是这样。

【参考方案1】：

也许你可以为你的服务器端做这样的事情：

@socketio.on('join')
def on_join(data):
    username = data["username"]
    room = data["room"]
    join_room(room)
    # Notofication about new user joined room
    send("msg": username + " has joined the " + room + " room.", room=room)

@socketio.on('leave')
def on_leave(data):
    leave_room(data['room'])
    # Notification about leaving users
    send('msg': data['username'] + " has left the " + data['room'], room=data['room'])

@socketio.on('new_room')
def new_room(data):
    ROOMS.append(data['new_room_name'])
    room = data['new_room_name']
    username = data['username']
    join_room(data['new_room_name'])
    # Notification about new user joined room
    send("msg": username + " has created the " + room + " room.", room=room)

和客户端：

// Select a room
document.querySelectorAll('.select-room').forEach(p => 
    p.onclick = () => 
        let newRoom = p.innerHTML
        // Check if user already in the room
        if (newRoom === room) 
            msg = `You are already in $room room.`;
            printSysMsg(msg);
         else 
            leaveRoom(room);
            joinRoom(newRoom);
            room = newRoom;
        
    ;
);

// Trigger 'join' event
    function joinRoom(room) 
        // Join room
        socket.emit('join', 'username': username, 'room': room);
    

// Trigger 'leave' event if user was previously on a room
    function leaveRoom(room) 
        socket.emit('leave', 'username': username, 'room': room);
    

// Trigger this event when a new room needs to be created
    function newRoom(room) 
        socket.emit('new_room', 'username': username, 'room': room);
    

我没有测试过这段代码，所以如果有语法错误，请原谅我，或者它只是不起作用，但我相信它应该。