How to use in nestjs?

[bashleigh]

How to use in nestjs?

[echoNeuro]

Some question

[solanamonk]

I've managed to connect it with the latest version of @nestjs/typeorm (10.0.2) like this:

import { Injectable } from '@nestjs/common';
import { InjectDataSource } from '@nestjs/typeorm';
import { Organization} from './organization.entity';
import { DataSource } from 'typeorm';
import { AbstractPolymorphicRepository } from 'typeorm-polymorphic';
import { OrganizationRepository } from './organization.repository';

@Injectable()
export class OrganizationService {
  private organizationRepository: OrganizationRepository;

  constructor(
    @InjectDataSource()
    private dataSource: DataSource,
  ) {
    this.organizationRepository = AbstractPolymorphicRepository.createRepository(
      dataSource,
      OrganizationRepository,
    )
  }

  async getOrganizations(): Promise<Organization[]> {
    return await this.organizationRepository.find();
  }
}

OrganizationRepository is the standard one from the README:

import { AbstractPolymorphicRepository, PolymorphicRepository } from 'typeorm-polymorphic';
import { Organization } from './organization.entity';

@PolymorphicRepository(Organization)
export class OrganizationRepository extends AbstractPolymorphicRepository<Organization> {}

[karl-dessol]

Hi.

Try something like this:

@Injectable()
export class MediumService {
  constructor(
    @InjectRepository(MediumEntity)
    protected repository: AbstractPolymorphicRepository<MediumEntity>,
  ) {
    this.repository = new class extends AbstractPolymorphicRepository<MediumEntity> {}(
      this.repository.target, this.repository.manager
    )
  }
}

If you don't use the find methods from the repository (and instead use a builder or similar), you'll need to hydrate your response which will fill them with the necessary data, such as:

let response = await this.repository.createQueryBuilder().getMany()

response = await this.repository.hydrateMany(response);

[nizarfadlan]

Hi.

Try something like this:

@Injectable()
export class MediumService {
  constructor(
    @InjectRepository(MediumEntity)
    protected repository: AbstractPolymorphicRepository<MediumEntity>,
  ) {
    this.repository = new class extends AbstractPolymorphicRepository<MediumEntity> {}(
      this.repository.target, this.repository.manager
    )
  }
}

If you don't use the find methods from the repository (and instead use a builder or similar), you'll need to hydrate your response which will fill them with the necessary data, such as:

let response = await this.repository.createQueryBuilder().getMany()

response = await this.repository.hydrateMany(response);

How to insert data?