我正在尝试使用MongoDB和mongoose作为我的小对话应用程序,其中每个用户都拥有自己的集合,但是在保存新对话时我收到错误:
ERROR: MongoError: insertDocument :: caused by :: 11000 E11000 duplicate key error index: chat.privatemessages.$id dup key: { : ObjectId('54f1a39ff467833f7e794636') }
我的架构:
var chatPrivateMessagesSchema = mongoose.Schema({
user: String,
with:[{
conversation_with: String,
messages:[{
text:String,
created: {type: Date, default: Date.now}
}]
}]
});
var PrivateMessages = mongoose.model('PrivateMessages', chatPrivateMessagesSchema);
保存新会话的方法:
socket.on ('chat', function (from, to, message, callback) {
PrivateMessages.find ({}, function (err, users) {
if (err) throw err;
for (var i = 0; i < users.length; i++) {
if (users[i].user == from) {
var newPrivateMsg = new PrivateMessages ({_id: users[i]._id}, {
with: [{
conversation_with: to, //if conversation with "to" user does not exist create a new entry
messages: [{
text: message, //append a new message
created: {type: Date, default: Date.now}
}]
}]
});
newPrivateMsg.save (function (err) {
if (err) throw err;
});
}
}
});
});
所以基本上我正在寻找的输出应该是这样的?
{
"_id": "some id",
"user": "John",
"with": [{
"conversation_with": "Maria",
"_id": "some id",
"messages": [{
"text": "Hellomyfisrtmessage",
"created": "somedate"
}, {
"text": "Secondmessage ",
"created": "somedate"
}, {
"text": "Thirdmessage",
"created": "somedate"
}, ]
}, {
"conversation_with": "Peter",
"_id": "some id",
"messages": [{
"text": "Hellomyfisrtmessage",
"created": "somedate"
}, {
"text": "Secondmessage ",
"created": "somedate"
}, {
"text": "Third message",
"created": "some date"
},
]
}],
}
我真的在努力学习如何插入一个新条目:(任何人都可以帮忙吗?
1 回答
问题是你要将每个PrivateMessage _id设置为用户的_id,不要这样做!
编辑: