package database import "database/sql" type CardStorageLocation struct { Id int CardPrintingId int StorageBox string Position int Source string } func GetLastPositionInBox(db *sql.DB, storageBox string) (int, error) { query := "SELECT Position FROM CardStorageLocation WHERE StorageBox = ? ORDER BY Position DESC LIMIT 1" var lastPosition int err := db.QueryRow(query, storageBox).Scan(&lastPosition) if err == sql.ErrNoRows { return 0, nil } else { return 0, err } return lastPosition, nil } func InsertCardStorageLocation(db *sql.DB, location CardStorageLocation) error { query := `INSERT INTO CardStorageLocation (CardPrintingId, StorageBox, Position, Source) VALUES (?, ?, ?, ?);` insert, err := db.Prepare(query) if err != nil { return err } _, err = insert.Exec(location.CardPrintingId, location.StorageBox, location.Position, location.Source) if err != nil { return err } return nil }