Do you want to request a feature or report a bug?

bug

What is the current behavior?

Getters are not being applied correctly to arrays in lean queries. This seems to be have been broken with the release of mongoose@7.5.0 as it is working as expected in mongoose@7.4.5.

If the current behavior is a bug, please provide the steps to reproduce.

import mongoose, { Schema } from "mongoose"; import mongooseLeanGetters from "mongoose-lean-getters"; function upper(value) { return value.toUpperCase(); } const userSchema = new Schema({ name: { type: String, get: upper, }, emails: [ { type: String, get: upper, }, ], }); userSchema.plugin(mongooseLeanGetters); const User = mongoose.model("User", userSchema); const run = async () => { await mongoose.connect("mongodb://localhost:27017/test"); const user = new User({ name: "one", emails: ["two", "three"], }); await user.save(); const foundUser = await User.findById(user._id, { _id: 0, name: 1, emails: 1, }).lean({ getters: true }); console.log(foundUser); // { name: 'ONE', emails: [ 'two', 'three' ] } }; run();

Please notice that the upper getter is not being applied to the emails array field:

{ name: 'ONE', emails: [ 'two', 'three' ] } 

What is the expected behavior?

The upper getter is applied to the emails array field and the above code logs the following:

{ name: 'ONE', emails: [ 'TWO', 'THREE' ] } 

What are the versions of Node.js, mongoose-lean-getters, and Mongoose are you are using? Note that "latest" is not a version.

node: 16.20.2
mongoose: 7.5.2
mongoose-lean-getters: 1.1.0