package db

import (
    "database/sql"
    _ "github.com/go-sql-driver/mysql"
)

func ConnectMySQL(dsn string) (*sql.DB, error) {
    if dsn == "" {
        return sql.Open("mysql", "invalid:invalid@tcp(localhost:3306)/invalid")
    }
    db, err := sql.Open("mysql", dsn)
    if err != nil {
        return nil, err
    }
    return db, nil
}