Nestjs仓库模式配置挑战

Question

我正在努力弄清楚Nest中TypeOrm的“存储库模式”是如何工作的。我希望有一个resources文件，其中一个local和一个远程文件包含不同的实体、控制器、模块等。请参见屏幕截图。

当应用程序正在构建时，我遇到了以下错误：

[Nest] 3186   - 11/19/2018, 10:44:43 PM   [ExceptionHandler] No repository for "Project" was found. Looks like this entity is not registered in current "default" connection? +1ms

从Nest和TypeORM文档中，我可以推断出，我需要告诉应用程序它可以在哪里找到实体，或者至少我认为错误信息是在试图告诉我这个。 我正在使用.env来获取TypeORM的配置：

TYPEORM_CONNECTION = postgres
TYPEORM_HOST = localhost
TYPEORM_USERNAME = xyz
TYPEORM_PASSWORD = xyz
TYPEORM_DATABASE = xyz
TYPEORM_PORT = 5432
TYPEORM_SYNCHRONIZE = true
TYPEORM_LOGGING = true
TYPEORM_ENTITIES = src/server/**/**.entity{.ts,.js}

app.module.ts

import { Module } from '@nestjs/common';
import { TypeOrmModule } from '@nestjs/typeorm';
import { AngularUniversalModule } from './modules/angular-universal/angular-universal.module';
import { JiraService } from './services/jira.service'
// modules
import { ProjectModule } from './resources/local/project/project.module'
// sync
import {ProjectsSync} from './sync/projects.sync'

@Module({
  imports: [
    ProjectModule,
    TypeOrmModule.forRoot(),
    AngularUniversalModule.forRoot(),
  ],
  controllers: [],
  providers:[JiraService, ProjectsSync],
})
export class ApplicationModule {}

project.module.ts

import { Module } from '@nestjs/common';
import { TypeOrmModule } from '@nestjs/typeorm';
import { ProjectService } from './project.service';
import { ProjectController } from './project.controller';
import { Project } from './project.entity';

@Module({
  imports: [TypeOrmModule.forFeature([Project])],
  providers: [ProjectService],
  controllers: [ProjectController],
})
export class ProjectModule {}

project.service.ts

import { Injectable, Inject } from '@nestjs/common';
import { InjectRepository } from '@nestjs/typeorm';
import { Repository } from 'typeorm';
import { Project } from './project.entity';

@Injectable()
export class ProjectService {
  constructor(
    @InjectRepository(Project)
    private readonly projectRepository: Repository<Project>,
  ) {}

  async findAll(): Promise<Project[]> {
    return await this.projectRepository.find();
  }
}

project.entity.ts

import { Entity, Column, PrimaryGeneratedColumn } from 'typeorm';

@Entity()
export class Project {
  @PrimaryGeneratedColumn()
  id: number;

  @Column({ length: 500 })
  name: string;
}

project.controller.ts

import { Controller, Get } from '@nestjs/common';
import { ProjectService } from './project.service';
import { Project } from './project.entity';

@Controller('project')
export class ProjectController {
  constructor(private readonly projectService: ProjectService) {}

  @Get()
  findAll(): Promise<Project[]> {
    return this.projectService.findAll();
  }
}

- Tino

---

你不能使用node（而不是ts-node）正确运行，因为你需要在dist而不是src中解析实体。个人而言，我更喜欢使用工厂方法来实例化TypeOrm连接，这样我就可以根据环境更改此路径（并在代码中解析其他属性文件）。 - zenbeni

Answer 1

只是一个猜测，你尝试过了吗：

TYPEORM_ENTITIES = ./server/**/**.entity{.ts,.js}

或者在app.module.ts中切换导入，将TypeOrmModule放在首位：

@Module({
  imports: [
    TypeOrmModule.forRoot(),
    ProjectModule,
    AngularUniversalModule.forRoot(),
  ],
  controllers: [],
  providers:[JiraService, ProjectsSync],
})
export class ApplicationModule {}

- Lewsmith

Answer 2

在您的 .env 文件中更改： TYPEORM_ENTITIES = src/server/**/**.entity{.ts,.js} 为 TYPEORM_ENTITIES = /../**/*.entity.{js,ts} 在您的 app.module 中使用：

const typeOrmConfig: TypeOrmModuleOptions = {
    type: process.env.TYPEORM_CONNECTION,
    host: process.env.TYPEORM_HOST,
    port: process.env.TYPEORM_PORT,
    username: process.env.TYPEORM_USERNAME,
    password: process.env.TYPEORM_PASSWORD,
    database: process.env.TYPEORM_DATABASE,
    synchronize: process.env.TYPEORM_SYNCHRONIZE,
    logging: process.env.TYPEORM_LOGGING,
    entities: [__dirname + process.env.TYPEORM_ENTITIES]
}

@Module({
  imports: [
    TypeOrmModule.forRoot(typeOrmConfig),
    ProjectModule,
    AngularUniversalModule.forRoot(),
  ],
  controllers: [],
  providers:[JiraService, ProjectsSync],
})
export class ApplicationModule {}

- forhas