Habits model class

• create an Habits class, a list of Habits. Here we use a RealmSwift List. As there's also now a SwiftUIList, we need to add the namespace RealmSwift.List

/Model/Habits.swift

import RealmSwift

class Habits: Object {
    @Persisted(primaryKey: true) var _id: ObjectId

    @Persisted var habits = RealmSwift.List<Habit>()
}

• if we want to reference from one habit to the list of habits, we'll a group propery to our Habit class:

/Model/Habit.swift

    // backlink
    @Persisted(originProperty: "habits") var group: LinkingObjects<Habits>