Unique class

Indicates that a field or a combination of fields must be unique.

When applied to a field, that field alone will have a unique constraint. When applied to a class, specify the columns that form a composite unique constraint.

Example (Field):

@Entity()
class User {
  @Unique()
  @Column()
  late String email;
}

Example (Class - Composite):

@Entity()
@Unique(name: 'uidx_name_org', columns: ['name', 'orgId'])
class Person {
  @Column()
  late String name;
  @Column()
  late int orgId;
}