TypeORM wani ORM ne mai ba da fifiko ga TypeScript don Node.js. Yana dogara da decorators don tsara classes zuwa tebura kuma yana goyon bayan tsarin Active Record da Data Mapper duka biyu. Babbar jan hankalinsa ita ce haɗakar TypeScript mai zurfi; babban haɗarinsa shi ne gefunan da ba su daidaita na query-layer da tarihin kulawa marar daidaituwa.
user.save()) don ƙananan aikace-aikace, ko Data Mapper (repository.save(user)) don code mai gwadawa da rabuwa.@Entity()
class User {
@PrimaryGeneratedColumn() id: number;
@Column({ unique: true }) email: string;
@OneToMany(() => Post, (p) => p.author) posts: Post[];
}
const users = await dataSource
.getRepository(User)
.find({ where: { email: "[email protected]" }, relations: { posts: true } });
find da QueryBuilder suna da nau'i a ɓangare kaɗai; sunan column ɗin da ba daidai ba yakan gaza a runtime, ba a compile time ba.Backends na TypeScript na greenfield (yana haɗuwa ta halitta da NestJS), ƙungiyoyin da suke daraja models bisa decorator kuma suke son entities masu nau'i, da aikace-aikacen da queries ɗinsu galibi CRUD ne tare da amfani da QueryBuilder lokaci-lokaci.
Zaɓar ORM alkawari ne na dogon lokaci wanda yake tsara yadda kowace fasali take taɓa database. Ƙirar TypeScript-na-farko ta TypeORM cin nasara ne na gaskiya na yawan aiki don codebases masu nau'i, amma masu hira suna son jin cewa ka kuma san iyakokinsa — typing na query na ɓangare, ciwon query mai rikitarwa, da tarihin fitarwa mara sanyi — don ka iya yanke shawara yaushe ergonomics ɗinsa ya fi gefunansa marasa daidaituwa nauyi, maimakon amincewa da shi bisa hype.
Ɗakin karatu na tambayoyin hira na IT tare da amsoshi cikakke — daga Junior zuwa Senior.
Ba da Gudummawa