Golang Register Examples

Example #1

File: 2_add_id.go Project: Nyarum/migrations

func init() {
	migrations.Register(func(db migrations.DB) error {
		fmt.Println("adding id column...")
		_, err := db.Exec(`ALTER TABLE my_table ADD id serial`)
		return err
	}, func(db migrations.DB) error {
		fmt.Println("dropping id column...")
		_, err := db.Exec(`ALTER TABLE my_table DROP id`)
		return err
	})
}

Example #2

File: 3_seed_data.go Project: Nyarum/migrations

func init() {
	migrations.Register(func(db migrations.DB) error {
		fmt.Println("seeding my_table...")
		_, err := db.Exec(`INSERT INTO my_table VALUES (1)`)
		return err
	}, func(db migrations.DB) error {
		fmt.Println("truncating my_table...")
		_, err := db.Exec(`TRUNCATE my_table`)
		return err
	})
}