如何让laravel在忘记密码进入链接时寻找管理员模式？

public function isAdmin()
{
    return $this->role === 'admin';
}

public function reset(Request $request)
{
    $this->validate($request, $this->rules(), $this->validationErrorMessages());

    $credentials = $request->only(
        'email', 'password', 'password_confirmation', 'token'
    );

    $response = Password::reset($credentials, function ($user, $password) {
        $this->resetPassword($user, $password);
    });

    // 判断用户是否为管理员
    $user = User::where('email', $request->email)->first();
    if ($user && $user->isAdmin()) {
        return redirect()->route('admin.dashboard');
    }

    return $response == Password::PASSWORD_RESET
                ? $this->sendResetResponse($response)
                : $this->sendResetFailedResponse($request, $response);
}