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所以我四处寻找试图弄清楚这一点,我想我只是错过了一些简单的东西......但我无法完全弄清楚。

使用 Mongoose,我正在查找特定文档,当找到该文档时,我想查看字段 senderDel 是否设置为 true,然后我将进行删除。如果它设置为 false,我会进行更新。

代码:

PMessage.delete = function(msgId, callback)
{
    Message.find({_id: msgId}, function(e, res){
        if (res){
            console.log(res);
            if (res.senderDel == true){
                console.log("sender deleted...call message remove");
                Message.remove({_id: msgId}, callback);
            } else {
                console.log("res.senderDel is not true");
                Message.findByIdAndUpdate(msgId, {$set: {receiverDel: true}}, callback);
            }
        } else {
            console.log("error: " + e); 
            callback; 
        }
    });
};   

console.log(res) 返回:

[ { sender: 50ea4e8198c6770e1e000004,
senderName: 'tester',
receiver: 50ac4ac5bca9f1794b000007,
receiverName: 'admin',
subject: 'a',
body: 'a',
_id: 5101a35a7889727e35000006,
__v: 0,
receiverDel: false,
senderDel: true,
read: false,
sentOn: '01/24/2013 21:10:50' } ]

我会认为我可以用 res.senderDel 引用 senderDel 字段?为什么 res.senderDel 出现未定义,我该如何修改它以使其工作?任何帮助是极大的赞赏!

编辑:添加我的架构:

var messageSchema = new Schema({
    sender: {type: ObjectId, ref: 'User'},
    senderName: String,
    receiver: {type: ObjectId, ref: 'User'},
    receiverName: String,
    subject: String,
    body: String,
    sentOn: {type: String, default: moment().format()},
    read: {type: Boolean, default: false},
    senderDel: {type: Boolean, default: false},
    receiverDel: {type: Boolean, default: false}
});

module.exports = mongoose.model('Message', messageSchema);
4

1 回答 1

1

model.find函数返回一个文档数组,而不是单个文档。如果要查找单个文档,请使用model.findOneor model.findById

PMessage.delete = function(msgId, callback)
{
    Message.findById(msgId, function(e, res){
        if (res){
            console.log(res);
            if (res.senderDel == true){
                console.log("sender deleted...call message remove");
                Message.remove({_id: msgId}, callback);
            } else {
                console.log("res.senderDel is not true");
                Message.findByIdAndUpdate(msgId, {$set: {receiverDel: true}}, callback);
            }
        } else {
            console.log("error: " + e); 
            callback; 
        }
    });
};
于 2013-01-25T06:23:35.063 回答