func FindOneTo(db *reform.Querier,
	str reform.Struct, column string, arg interface{}) error {
	if err := db.FindOneTo(str, column, arg); err != nil {
		return fmt.Errorf("failed to find %T by '%s' column: %s",
			str, column, err)
	}
	return nil
}
func FindOneTo(db *reform.Querier,
	str reform.Struct, column string, arg interface{}) error {
	if err := db.FindOneTo(str, column, arg); err != nil {
		return fmt.Errorf("failed to find %T by '%s' column: %s",
			str, column, err)
	}
	return nil
}
// FindOneTo calls db.FindOneTo() returning more descriptive error.