RenaiApp/src/main/entities/library/site.ts

import { Entity, OneToMany } from 'typeorm';
import { MultiNamed } from './bases/multi-named';
import { Source } from './source';

@Entity()
export class Site extends MultiNamed {
  @OneToMany(() => Source, (source: Source) => source.site, {
    nullable: false,
    onDelete: 'CASCADE',
    onUpdate: 'CASCADE',
  })
  public sources: Promise<Source[]>;
}