Function ToApply

migrate.go:772–798

Filter a slice of migrations into ones that should be applied.

(migrations []*Migration, current string, direction MigrationDirection)

// Filter a slice of migrations into ones that should be applied.
func ToApply(migrations []*Migration, current string, direction MigrationDirection) []*Migration {
	index := -1
	if current != "" {
		for index < len(migrations)-1 {
			index++
			if migrations[index].Id == current {
				break
			}
		}
	}

	switch direction {
	case Up:
		return migrations[index+1:]
	case Down:
		if index == -1 {
			return []*Migration{}
		}
		toApply := make([]*Migration, index+1)
		for i := 0; i < index+1; i++ {
			toApply[index-i] = migrations[i]
		}
		return toApply
	}

	panic("Not possible")
}

func ToCatchup(migrations, existingMigrations []*Migration, lastRun *Migration) []*PlannedMigration {
	missing := make([]*PlannedMigration, 0)