Here’s a snippet of how it look like:
package main
import (
"log"
"gopkg.in/gormigrate.v1"
"github.com/jinzhu/gorm"
_ "github.com/jinzhu/gorm/dialects/sqlite"
)
type Person struct {
gorm.Model
Name string
}
type Pet struct {
gorm.Model
Name string
PersonID int
}
func main() {
db, err := gorm.Open("sqlite3", "mydb.sqlite3")
if err != nil {
log.Fatal(err)
}
if err = db.DB().Ping(); err != nil {
log.Fatal(err)
}
db.LogMode(true)
m := gormigrate.New(db, gormigrate.DefaultOptions, []*gormigrate.Migration{
{
ID: "201608301400",
Migrate: func(tx *gorm.DB) error {
return tx.AutoMigrate(&Person{}).Error
},
Rollback: func(tx *gorm.DB) error {
return tx.DropTable("people").Error
},
},
{
ID: "201608301430",
Migrate: func(tx *gorm.DB) error {
return tx.AutoMigrate(&Pet{}).Error
},
Rollback: func(tx *gorm.DB) error {
return tx.DropTable("pets").Error
},
},
})
err = m.Migrate()
if err == nil {
log.Printf("Migration did run successfully")
} else {
log.Printf("Could not migrate: %v", err)
}
}