import "reflect-metadata" import { DataSource, DataSourceOptions } from "../../src/index" import { Category } from "./entity/Category" const options: DataSourceOptions = { type: "mysql", host: "localhost", port: 3306, username: "root", password: "admin", database: "test", synchronize: true, entities: [__dirname + "/entity/*"], } const dataSource = new DataSource(options) dataSource.initialize().then( (dataSource) => { let categoryRepository = dataSource.getRepository(Category) let category1 = new Category() category1.name = "category #1" let mainCategory = new Category() mainCategory.manyCategories = [] mainCategory.name = "main category" mainCategory.oneCategory = category1 mainCategory.manyCategories.push(category1) mainCategory.oneManyCategory = category1 categoryRepository .save(mainCategory) .then((savedCategory) => { console.log("saved category: ", savedCategory) }) .catch((error) => console.log( "Cannot save. Error: ", error.stack ? error.stack : error, ), ) }, (error) => console.log("Cannot connect: ", error.stack ? error.stack : error), )