Ogen with sql scanner

scanners.go

package oasapi

import (
	"database/sql"
	"fmt"
	"time"

	"github.com/google/uuid"
)

func (s *OptString) Scan(src interface{}) error {
	switch value := src.(type) {
	case string:
		s.Value = value
		s.Set = true
	case nil:
	default:
		return fmt.Errorf("incompatible type %T for OptString", src)
	}
	return nil
}

func (s *OptDateTime) Scan(src interface{}) error {
	switch value := src.(type) {
	case time.Time:
		s.Value = value
		s.Set = true
	case nil:
	default:
		return fmt.Errorf("incompatible type %T for OptDateTime", src)
	}
	return nil
}

func (s *OptUUID) Scan(src interface{}) error {
	switch value := src.(type) {
	case uuid.UUID:
		s.Value = value
		s.Set = true
	case nil:
	default:
		return fmt.Errorf("incompatible type %T for OptUUID", src)
	}
	return nil
}

func (s OptString) Sql() sql.NullString {
	return sql.NullString{
		String: s.Value,
		Valid:  s.Set,
	}
}