在mongoose中使用uuid作为objectID

Question

How can i use an UUID generated string, instead of the original mongoose ObjectID string , keeping the objectID methods(ValueOf(), To String(), ....) ?

when i generate UUID and i try to use in my mongoose schema with

in my model:

var uniqueUUID = uuid.v4();
createUser = user({
            'myid': uniqueUUID,
});

in my model/schema:

var userSchema = new mongoose.Schema({

_id: Schema.Types.ObjectId

});

got a validation error.

ValidationError: user validation failed

Answer 1

You are trying to add a key that doesn't exist in the schema. There is no myid key defined in your schema. By default mongoose doesn't allow keys that haven't been pre-defined.

You can change it up to be something like this:

var userSchema = new mongoose.Schema({

_id: {type: String, default: uuid.v4}

});

That automaticly assings the object id with the generated uuid.v4 value.

When creating user use:

var newUser = new user();

That has automaticly assigned the id for the document. Just remeber to save it. :)

If you want to have another id field called myid you can add that to the schema by following how the _id has been added.