@CreateDateColumn does not auto populate upon insertion.

Issue type:

[x] question [x] bug report [ ] feature request [ ] documentation issue

Database system/driver:

[ ] cordova [ ] mongodb [ ] mssql [x] mysql / mariadb [ ] oracle [ ] postgres [ ] sqlite [ ] sqljs [ ] react-native

TypeORM version:

[ ] latest [ ] @next [x] 0.2.2

Steps to reproduce or a small repository showing the problem:

Sample entity definition.

export class MyEntity {
    @PrimaryGeneratedColumn()
    public id: number;

    @Column({type: "int"})
    public password_reset_id: number;

    @Column({type: "varchar"})
    public password_hash: string;

    @CreateDateColumn()
    public created_at: Date;

    @UpdateDateColumn()
    public updated_at: Date;

    @Column({type: "timestamp"})
    public deleted_at: Date;
}

It would seem that after updating to version 0.2.2 my created_at columns are no longer being populated upon record insertion. Has the @CreateDateColumn() decorator changed in someway? Am I missing something completely obvious?

[mrsauravsahu]

you can try

@CreateDateColumn({ default: () => 'NOW()' })
createdAt: Date

in your entity. This should generate the right migration.

[mrsauravsahu]

you can try

@CreateDateColumn({ default: () => 'NOW()' })
createdAt: Date

in your entity. This should generate the right migration.

i have tried this and it did not work either

Odd, tried this again. I’m still able to generate the right migration.

import { Entity, PrimaryGeneratedColumn, Column, CreateDateColumn } from "typeorm"

@Entity()
export class User {

    @PrimaryGeneratedColumn()
    id: number

    @Column()
    firstName: string

    @Column()
    lastName: string

    @Column()
    age: number

    @CreateDateColumn({ default: () => 'NOW()' })
    createdAt: Date
}

npm run typeorm -- migration:generate src/migration/InitialCreate -d src/data-source.ts

which generated this migration

import { MigrationInterface, QueryRunner } from "typeorm";

export class InitialCreate1657194989813 implements MigrationInterface {
    name = 'InitialCreate1657194989813'

    public async up(queryRunner: QueryRunner): Promise<void> {
        await queryRunner.query(`CREATE TABLE "user" ("id" SERIAL NOT NULL, "firstName" character varying NOT NULL, "lastName" character varying NOT NULL, "age" integer NOT NULL, "createdAt" TIMESTAMP NOT NULL DEFAULT NOW(), CONSTRAINT "PK_cace4a159ff9f2512dd42373760" PRIMARY KEY ("id"))`);
    }

    public async down(queryRunner: QueryRunner): Promise<void> {
        await queryRunner.query(`DROP TABLE "user"`);
    }

}

import "reflect-metadata"
import { AppDataSource } from "./data-source"
import { User } from "./entity/User"

AppDataSource.initialize().then(async () => {

    console.log("Inserting a new user into the database...")
    const user = new User()
    user.firstName = "Saurav"
    user.lastName = "Sahu"
    user.age = 25
    await AppDataSource.manager.save(user)
    console.log("Saved a new user with id: " + user.id)

    console.log("Loading users from the database...")
    const users = await AppDataSource.manager.find(User)
    console.log("Loaded users: ", users)
}).catch(error => console.log(error))

which fills the createdAt property with the current timestamp

└─$ npm start

> repro-postgres-auto-populate-dates@1.0.0 start
> ts-node src/index.ts

Inserting a new user into the database...
Saved a new user with id: 1
Loading users from the database...
Loaded users:  [
  User {
    id: 1,
    firstName: 'Saurav',
    lastName: 'Sahu',
    age: 25,
    createdAt: 2022-07-07T06:27:59.987Z
  }
]