How do I define relationships between models in Realm using TypeScript?

How do I define relationships between models in Realm using TypeScript?

In Realm, you can define relationships by using properties in your model classes. For example, you can use a property of type Realm.List to create a one-to-many relationship.

Can you show me an example of a one-to-many relationship?

Sure! If you have a User model and a Post model, you can define it like this:

class User extends Realm.Object {
  name!: string;
  posts!: Realm.List<Post>;
}

class Post extends Realm.Object {
  title!: string;
  user!: User;
}

Here, a User can have multiple Post instances.

What about many-to-many relationships?

For many-to-many relationships, you can use a linking object. For instance, if you have Student and Course models, you can create an Enrollment model that links them.

Can you provide a code snippet for that?

Absolutely! Here's how you might define it:

class Student extends Realm.Object {
  name!: string;
  courses!: Realm.List<Enrollment>;
}

class Course extends Realm.Object {
  title!: string;
  students!: Realm.List<Enrollment>;
}

class Enrollment extends Realm.Object {
  student!: Student;
  course!: Course;
}

This way, each Student can enroll in multiple Courses and vice versa.