Customize Laravel 8 Passport methods - laravel

Question

The login validation I use is not Laravel's default. How do I customize Passport methods?
The following code I use to validate with web middleware.
$username = $request->username;
$password = strtoupper(md5($request->password));
$system = env("CODE_SYSTEM", 12);
$sql = "SELECT user.validate( '$system' , '$username', '$password')";
$stmt = DB::select(DB::raw($sql));
$result = $stmt[0]->validation;
if ($result == "ok") {
$user = new User();
$id = DB::table('users')->select('id')
->where('username' , $username)->first();
$user = User::find($id->id);
return $user;
}

Answer 1

To customize you need add the validateForPassportPasswordGrant() at User method, example:
public function validateForPassportPasswordGrant($password)
{
$password = strtoupper(md5($request->password));
$system = env("CODE_SYSTEM", 12);
$sql = "SELECT user.validate( '$system' , '$this->username', '$password')";
$stmt = DB::select(DB::raw($sql));
$result = $stmt[0]->validation;
if ($result == "ok") {
return true;
}
return false;
}
If you need to change the user column name where the passport search username:
public function findForPassport($username)
{
return $this->where('the_username_column', $username)->first();
}