添加和插入 photo

现在创建一个新的 photo 存到数据库：

  1. import { createConnection } from "typeorm";
  2. import { Photo } from "./entity/Photo";
  4. createConnection(/*...*/)
  5.   .then(connection => {
  6.     let photo = new Photo();
  7.     photo.name = "Me and Bears";
  8.     photo.description = "I am near polar bears";
  9.     photo.filename = "photo-with-bears.jpg";
  10.     photo.views = 1;
  11.     photo.isPublished = true;
  13.     return connection.manager.save(photo).then(photo => {
  14.       console.log("Photo has been saved. Photo id is", photo.id);
  15.     });
  16.   })
  17.   .catch(error => console.log(error));

保存实体后，它将获得新生成的 ID。 save方法返回传递给它的同一对象的实例。但它不是对象的新副本，只是修改了它的”id”并返回它。