Files
go-admin/common/models/migrate.go

24 lines
870 B
Go

package models
import "time"
type Migration struct {
Version string `gorm:"primaryKey"`
ApplyTime time.Time `gorm:"autoCreateTime"`
// AppCode identifies which app registered this migration. The empty string
// means the framework itself.
//
// NOT NULL DEFAULT '' rather than a nullable column, and the difference is
// not cosmetic: on a nullable column the rows that already exist when
// AutoMigrate adds it hold NULL, and the first SELECT scanning one into
// this string field fails with "converting NULL to string is unsupported".
// The default is what makes "existing history belongs to the framework"
// true without a backfill script anyone could forget to run.
AppCode string `gorm:"type:varchar(64);not null;default:'';index:idx_sys_migration_app_code;comment:AppCode"`
}
func (Migration) TableName() string {
return "sys_migration"
}