//MigrateDown reverts an existing schema to the previously know version
func MigrateDown(repo files.IFileRepo,
service versioning.IManageVersions) error {
migFiles, err := repo.FindAll()
if err != nil {
return err
}
currentV, err := service.GetCurrentVersion()
if err != nil {
return err
}
if currentV > 0 {
s := find(currentV, migFiles)
return migrateDown(s, service)
}
return nil
}
//MigrateUp updates the schema to the latest based on available changes
func MigrateUp(repo files.IFileRepo,
service versioning.IManageVersions) error {
migFiles, err := repo.FindAll()
if err != nil {
return err
}
currentV, err := service.GetCurrentVersion()
if err != nil {
return err
}
migratables := getMigratable(currentV, migFiles)
migCnt := len(migratables)
if migCnt > 0 {
fmt.Printf("Migrating %d files...\n", migCnt)
return migrateUp(service, migratables)
}
return nil
}