function ambil_berdasar_kode($kode) { $klausa = "WHERE " . kolom(self::tabel(), "kode") . " = '{$kode}'"; return $this->ambil_data($klausa); }
function ambil_berdasar_id($id) { $klausa = "WHERE " . kolom(self::tabel(), self::pk()) . " = '{$id}'"; return $this->ambil_data($klausa); }
function ambil_berdasar_username($username) { $klausa = "WHERE " . kolom(self::tabel(), "username") . " = '{$username}'"; return $this->ambil_data($klausa); }