2️⃣ `update`: 直接修改实体,不会先进行 SELECT 查询。3️⃣ `insert`: 直接插入实体,不涉及 SELECT 查询。4️⃣ `delete`: 通过 ID 删除实体。5️⃣ `remove`: 通过实体对象删除实体。6️⃣ `find`: 查找多条记录,支持 WHERE 和 ORDER BY 等条件。7️⃣ `findBy`: 查找多条记...
Entityis your model decorated by an@Entitydecorator. A database table will be created for such models. You work with entities everywhere in TypeORM. You can load/insert/update/remove and perform other operations with them. Let's make ourPhotomodel an entity: import{Entity}from"typeorm"@Entity...
import {createConnection} from "typeorm";import {Photo} from "./entity/Photo";createConnection(/*...*/).then(async connection => { /*...*/ let photoToUpdate = await photoRepository.findOneById(1); photoToUpdate.name = "Me, my friends and polar bears"; await photoReposito...
Now let's load a single photo from the database, update it and save it:import { Photo } from "./entity/Photo" import { AppDataSource } from "./index" const photoRepository = AppDataSource.getRepository(Photo) const photoToUpdate = await photoRepository.findOneBy({ id: 1, }) photo...
update goods set count = count - 10 where id = 1; 1. 2、在typeorm中写法方式一 // 使用mysql的乐观锁实现 async goods(): Promise<string> { const num = 90; const goodsInfo: Pick<GoodsEntity, 'count' | 'version'> = await this.goodsRepository.findOne({ ...
id: "users_admins", milisseconds: 25000 } }); // 清理缓存 await connection.queryResultCache.remove(["users_admins"]); 懒加载 关联对象查询,有两种类型:直接加载、延迟加载(懒加载) 直接加载:执行完对主加载对象的 select 语句,马上执行对关联对象的 select 查询 ...
可以直接从数据库中得到包含数据的实体对象,并且可以通过实体进行数据库表的insert/update/remove。 来看看这个modelentity/Photo.ts: exportclassPhoto{id:number;name:string;description:string;fileName:string;views:number; } 创建实体 现在把Model变成实体: ...
可以直接从数据库中得到包含数据的实体对象,并且可以通过实体进行数据库表的insert/update/remove。 来看看这个modelentity/Photo.ts: exportclassPhoto{id:number;name:string;description:string;fileName:string;views:number; } 创建实体 现在把Model变成实体: ...
Now let's load a single photo from the database, update it and save it:import { Photo } from "./entity/Photo" import { AppDataSource } from "./index" const photoRepository = AppDataSource.getRepository(Photo) const photoToUpdate = await photoRepository.findOneBy({ id: 1, }) photo...
You can load/insert/update/remove and perform other operations with them.Let's make our Photo model an entity:import { Entity } from "typeorm" @Entity() export class Photo { id: number name: string description: string filename: string views: number isPublished: boolean }...