How add a custom field to Laravel 5.4 default login. LoginController.php

1README.md

How add a custom field to Laravel 5.4 default login controller.

In this php example (app/Http/Controllers/Auth/LoginController.php) my model is called User and the custom field for login validation is confirmed. ($User->confirmed)

Feel free to customize!

LoginController.php

<?php

namespace App\Http\Controllers\Auth;

use App\User;
use Illuminate\Http\Request;
use App\Http\Controllers\Controller;
use Illuminate\Foundation\Auth\AuthenticatesUsers;

class LoginController extends Controller
{
    /*
    |--------------------------------------------------------------------------
    | Login Controller
    |--------------------------------------------------------------------------
    |
    | This controller handles authenticating users for the application and
    | redirecting them to your home screen. The controller uses a trait
    | to conveniently provide its functionality to your applications.
    |
    */

    use AuthenticatesUsers;

    /**
     * Where to redirect users after login.
     *
     * @var string
     */
    protected $redirectTo = '/home';

    /**
     * Create a new controller instance.
     *
     * @return void
     */
    public function __construct()
    {
        $this->middleware('guest', ['except' => 'logout']);
    }

    /**
     * Handle a login request to the application.
     *
     * @param  \Illuminate\Http\Request  $request
     * @return \Illuminate\Http\RedirectResponse|\Illuminate\Http\Response
     */
    public function login(Request $request)
    {
        $this->validateLogin($request);

        if ($this->hasTooManyLoginAttempts($request)) {
            $this->fireLockoutEvent($request);

            return $this->sendLockoutResponse($request);
        }

        if ($this->attemptLogin($request)) {
            return $this->sendLoginResponse($request);
        }

        $username = $request->get($this->username());
        
        $user = User::where($this->username(), $username)->first();

        $this->incrementLoginAttempts($request);

        // Customization: If client status is inactive (0) return failed_status error.
        if( $user ) {
            if ($user->confirmed == 0) {
                return $this->sendFailedLoginResponse($request, 'You need to confirm your account first. We have sent you an email to confirm your account.');
            }
        }

        return $this->sendFailedLoginResponse($request);
    }

    /**
     * Get the needed authorization credentials from the request.
     *
     * @param  \Illuminate\Http\Request  $request
     * @return array
     */
    protected function credentials(Request $request)
    {
        $credentials = $request->only($this->username(), 'password');
        $credentials['confirmed'] = 1;
        return $credentials;
    }

    /**
     * Get the failed login response instance.
     *
     * @param  \Illuminate\Http\Request  $request
     * @param  string  $field
     * @return \Illuminate\Http\RedirectResponse
     */
    protected function sendFailedLoginResponse(Request $request, $trans = 'auth.failed')
    {
        $errors = [$this->username() => trans($trans)];

        if ($request->expectsJson()) {
            return response()->json($errors, 422);
        }

        return redirect()->back()
            ->withInput($request->only($this->username(), 'remember'))
            ->withErrors($errors);
    }
}