Using Repositories Using Repositories Now let’s refactor our code and use Repository instead of EntityManager .Each entity has its own repository which handles all operations ...

隐藏列 隐藏列 如果要查询的模型具有”select：false”的列，则必须使用addSelect 函数来从列中检索信息。 假设你有以下实体： import { Entity , PrimaryGeneratedColumn , Column } from "typeorm" ; @Entity () ex...

从数据库加载 从数据库加载 让我们使用 Repository 尝试更多的加载操作: import { createConnection } from "typeorm" ; import { Photo } from "./entity/Photo" ; createConnection ( /*.....

Creating and inserting a photo into the database Creating and inserting a photo into the database Now let’s create a new photo to save it in the database: import { createCon...

Create a model Create a model Working with a database starts from creating tables.How do you tell TypeORM to create a database table?The answer is - through the models.Your mod...

创建一个模型 创建一个模型 使用数据库从创建表开始。如何告诉 TypeORM 创建数据库表？答案是 - 通过模型。应用程序中的模型即是数据库中的表。 举个例子, 你有一个Photo 模型: export class Photo { id : number ; name : string ; descri...

Column data types Column data types Next, let’s fix our data types. By default, string is mapped to a varchar(255)-like type (depending on the database type).Number is mapped t...

添加和插入 photo 添加和插入 photo 现在创建一个新的 photo 存到数据库： import { createConnection } from "typeorm" ; import { Photo } from "./entity/Photo" ; createConnection ( ...

What is Repository What is Repository Repository is just like EntityManager but its operations are limited to a concrete entity. You can access repository via getRepository(...

Asynchronous providers Injection Example Asynchronous providers At times, the application start should be delayed until one or more asynchronous tasks are completed. For exa...