Function getEntityManager

packages/decorators/src/utils.ts:23–45

(caller: { orm?: MikroORM; em?: EntityManager }, context: unknown)

    ) => MaybePromise<MikroORM | EntityManager | EntityRepository<any> | { getEntityManager(): EntityManager }>);

function getEntityManager(caller: { orm?: MikroORM; em?: EntityManager }, context: unknown): EntityManager | undefined {
  if (context instanceof EntityManager) {
    return context;
  }

  if (context instanceof EntityRepository) {
    return context.getEntityManager();
  }

  if (context instanceof MikroORM) {
    return context.em;
  }

  if (caller.em instanceof EntityManager) {
    return caller.em;
  }

  if (caller.orm instanceof MikroORM) {
    return caller.orm.em;
  }

  return undefined;
}

/**
 * Find `EntityManager` in provided context, or else in instance's `orm` or `em` properties.