Hi I have the following abstract TreeEntity

@Tree('closure-table')
@Entity()
export abstract class TreeNodeEntity<T extends TreeNodeEntity<T>> {
  @PrimaryGeneratedColumn('uuid')
  id: string;

  @CreateDateColumn()
  createdAt: Date;

  @UpdateDateColumn()
  updatedAt: Date;

  @DeleteDateColumn()
  deletedAt: Date;

  @Column({ type: 'enum', enum: TreeNodeType, default: null })
  type: TreeNodeType;

  @Column()
  name: string;

  @Column({ unique: true, default: null })
  slug: string;

  @Column({ default: 0 })
  order: number;

  @Column({ default: null })
  content: string;

  @Column({ nullable: true })
  parentId?: string;

  @TreeParent()
  parent?: T;

  @TreeChildren()
  children?: T[];

  constructor(partial: Partial<TreeNodeEntity<T>>) {
    Object.assign(this, partial);
  }
}

And here is my CourseNodeEntity that inherits it:

@Entity()
export class CourseNodeEntity extends TreeNodeEntity<CourseNodeEntity> {
  @Column({ default: false })
  isFree: boolean;

  @OneToMany(() => FileEntity, (attachment) => attachment.courseNodeAttachments)
  attachments?: FileEntity[];

  @OneToOne(() => FileEntity)
  @JoinColumn()
  video?: FileEntity;

  @ManyToOne(() => CourseEntity, (target) => target.nodes)
  target: CourseEntity;

  @Column({ default: 0 })
  homeworksCount: number;

  constructor(partial: Partial<CourseNodeEntity>) {
    super(partial);
    Object.assign(this, partial);
  }
}

Unfortunately there is an error when I’m trying to add a CourseNode with non-null parentId (
inserting or modifying on table 'course_node_entity' foreign key violation 'FK_15887c4f37b41f4b23d5bc6ac2b'):

Any ideas how to make it works or inheritance will not work with Tree entities and relations in general?