Cyclic dependency with Postgres - postgresql

Question

I have two entities called User and Ad and the relation is 1:M, when I need to create a new Ad, I need to pass the announcer_id together.
Ad.ts
import {
Entity,
PrimaryGeneratedColumn,
Column,
CreateDateColumn,
UpdateDateColumn,
ManyToOne,
JoinColumn,
} from 'typeorm';
import User from './User';
#Entity('ads')
class Ad {
#PrimaryGeneratedColumn('uuid')
id: string;
#Column()
announcer_id: string;
#ManyToOne(() => User)
#JoinColumn({ name: 'announcer_id' })
announcer: User;
}
export default Ad;
User.ts
import {
Entity,
PrimaryGeneratedColumn,
Column,
CreateDateColumn,
UpdateDateColumn,
} from 'typeorm';
#Entity('users')
class Ad {
#PrimaryGeneratedColumn('uuid')
id: string;
#Column()
name: string;
#Column()
email: string;
#Column()
password: string;
#CreateDateColumn()
created_at: Date;
#UpdateDateColumn()
updated_at: Date;
}
export default Ad;
CreateAdService.ts
import { getCustomRepository } from 'typeorm';
import Ad from '../models/Ad';
import AdsRepository from '../repositories/AdsRepository';
interface IRequest {
announcer_id: string;
title: string;
description: string;
price: number;
n_room: number;
n_bathroom: number;
garage: boolean;
}
class CreateAdService {
public async execute({
announcer_id,
title,
description,
price,
n_room,
n_bathroom,
garage,
}: IRequest): Promise<Ad> {
const adsRepository = getCustomRepository(AdsRepository);
const priceNegative = adsRepository.isNegative(price);
if (priceNegative) {
throw new Error("You can't create an announcement with negative price.");
}
const ad = adsRepository.create({
announcer_id,
title,
description,
price,
n_room,
n_bathroom,
garage,
});
await adsRepository.save(ad);
return ad;
}
}
export default CreateAdService;
The Error
{
"error": "Cyclic dependency: \"Ad\""
}