repository - NestJS y TypeORM : InjectRepository undefined

Question

我在使用 nestjs 和 TypeORM 开发的服务中遇到问题

系统使用 docker 运行，在我的电脑上一切正常，但当我在任何其他端运行时它停止工作。

错误说:

TypeError: Cannot read property 'findOne' of undefined

基本资料库:

export abstract class BasicRepository<Entity> {

  constructor(protected readonly repository: Repository<Entity>,
protected readonly request: Request) {
     console.log("basicRepo", this.repository.metadata.givenTableName) 
  }
}

用户资料库:

import { Inject, Injectable, Scope } from '@nestjs/common';
import { Repository } from 'typeorm';
import { InjectRepository } from '@nestjs/typeorm';
import { BasicRepository } from './basic.repository';
import { UserEntity } from '../../shared/entities/user.entity';
import { REQUEST } from '@nestjs/core';
import { Request } from 'express';

@Injectable({ scope: Scope.REQUEST })
export class UserRepository extends BasicRepository<UserEntity> {

  constructor(
    @InjectRepository(UserEntity) public readonly repository: Repository<UserEntity>,
    @Inject(REQUEST) public readonly request: Request,
  ) {
    super(repository, request);
  }
}

点击存储库:

import { Inject, Injectable, Scope } from '@nestjs/common';
import { Repository, FindManyOptions, getConnection, getManager } from 'typeorm';
import { InjectRepository } from '@nestjs/typeorm';
import { BasicRepository } from './basic.repository';
import { TapEntity} from '../../shared/entities/tap.entity';
import { REQUEST } from '@nestjs/core';
import { Request } from 'express';

@Injectable({ scope: Scope.REQUEST })
export class TapRepository extends BasicRepository<TapEntity> {

  constructor(
    @InjectRepository(TapEntity) public readonly repository: Repository<TapEntity>,
    @Inject(REQUEST) public readonly request: Request,
  ) {
    super(repository, request);
  }
}

奇怪的是，在这种情况下，UserRepository 并没有给我错误，而是其他错误。

该系统只能在我的电脑上运行，我通常使用 kubernetes 运行该系统，当我想在 GKE(谷歌)或 EKS(亚马逊)上运行时它会失败。

发生的另一件事是打印存储库表名称的“basicRepo”消息仅使用 UserRepository 类打印。

Answer 1

解决方案很简单，而不是使用 @InjectRepository() 使用 typeorm 中的这个 Connection 来获取这样的存储库并初始化。

export class UserService {
    private userRepository: UserRepository;
    private authRepository: AuthRepository;
    constructor(
        private readonly connection: Connection
    ) {
        this.userRepository = this.connection.getCustomRepository(UserRepository);
        this.authRepository = this.connection.getCustomRepository(AuthRepository);
    }
}

现在它像魅力一样工作:)