if err == nil {
		n.Valid = true
	}
	return err
}

func (DeletedAt) QueryClauses(f *schema.Field) []clause.Interface {
	return []clause.Interface{SoftDeleteQueryClause{Field: f, ZeroValue: parseZeroValueTag(f)}}
}

func parseZeroValueTag(f *schema.Field) sql.NullString {
	if v, ok := f.TagSettings["ZEROVALUE"]; ok {
		if _, err := now.Parse(v); err == nil {
			return sql.NullString{String: v, Valid: true}
		}
	}