MongoDB-尝试将整个集合的内容传输到另一个集合中的一个“用户对象”

Question

I've been collecting records for myself for some time now, so I have one collection entirely of my own records. Now I'm trying to add multi user capability and want to transfer all my data from that collection to an array within my own user object in another collection.

This is where I'm at.

myRecordsCollection.find({}).forEach(function(err, doc) {
    usersCollection.update(
        {
            "name": "Me"
        },
        {$push:
            {
                'records' : doc
            }
        }
    );
});

But this doesn't work. :(

Answer 1

$push push only one item at a time,But you are trying to push array,You need to use $each with $push.

myRecordsCollection.find({}).forEach(function(err, doc) {
    usersCollection.update(
        {
            "name": "Me"
        },
        {$push:
            {
                'records' : { $each: doc }
            }
        }
    );
});