Wrapping multiple similar calls so that error handling code is reduced.

Better error handling

type WriteDB struct {
  Conn *sql.DB
  Err  error
}

func (db *WriteDB) Do( 
  update,
  title,
  updated_at,
  updated_by,
  titleString,
) {
  if db.Err != nil {
    return
  }
  _, db.Err = db.Conn.Exec(update, title, updated_at, updated_by, titleString)
}

func main() {
  var db WriteDB
  db.Conn, db.Err = readDB.Begin()
  db.Do(stmtUpdateSettings, title, updated_at, updated_by, "title")
  db.Do(stmtUpdateSettings, logo, updated_at, updated_by, "logo")

  if db.Err != nil {
    db.Conn.Rollback()
  }
  return db.Conn.Commit()
}