Question

这段代码有点麻烦。问题是，当我从// @desc Process the count form // @route POST /session/create router.post('/session/create', async (req, res) => { req.body.user = req.user.id await Count.save(err, req.body) => { if(err) { next(err); } const itemID = req.body._id; res.redirect('/new-page' + itemID); } });发布消息时，在messages.ejs中MongoDB Collection不会得到更新，一切正常。

profile.ejs

profile.ejs

socket.emit('newMessage', {body: message_text, type: "Single", conv_id: users[0].id + "_" + users[1].id, users: users, author_name: message__author_name.val(), author_avatar: message__author_avatar.val(), author_id: message__author_id.val(), added: message__date});

messages.ejs

我想并不是所有的信息都填充在请求中，所以存在这样的问题，尽管在更新“对话”集合时甚至不应该添加诸如头像，类型，子组之类的字段。

            socket.emit('newMessage', {body: message_text, 
                                        conv_id: urlParams.get('id'),
                                        author_name: '<%= sessionUser.name %>' + ' ' + '<%= sessionUser.lastname %>',
                                        author_avatar: '<%= sessionUser.avatar %>',
                                        author_id: '<%= sessionUser.id %>',
                                        added: message__date});

Answer 1

我已经解决了这个问题。这都是由于我不注意将带有get方法的URL对象放在何处引起的。

在messages.ejs文件中是：

    // When User has clicked send button
    // Sending Message
    let queryString = window.location.search;
    const urlParams = new URLSearchParams(queryString);
    let urlId = urlParams.get('id');

    sendMessage__btn.click(() => {

        ...

        socket.emit('newMessage', {body: message_text, 
                                        conv_id: urlId,
                                        author_name: '<%= sessionUser.name %>' + ' ' + '<%= sessionUser.lastname %>',
                                        author_avatar: '<%= sessionUser.avatar %>',
                                        author_id: '<%= sessionUser.id %>',
                                        added: message__date});

代替：

    sendMessage__btn.click(() => {
        
        // When User has clicked send button
        // Sending Message
        let queryString = window.location.search;
        const urlParams = new URLSearchParams(queryString);
        let urlId = urlParams.get('id');

        ...

        socket.emit('newMessage', {body: message_text, 
                                        conv_id: urlId,
                                        author_name: '<%= sessionUser.name %>' + ' ' + '<%= sessionUser.lastname %>',
                                        author_avatar: '<%= sessionUser.avatar %>',
                                        author_id: '<%= sessionUser.id %>',
                                        added: message__date});

结果，变量urlId未被更新，并且返回null或不正确的id

无法使用$ push更新Mongo DB对话集合

1 个答案: