Laravel 5.4 Additional Login Conditions - Add custom error message.

LoginController.php

<?php


// This is code to return custom error message
//      for Youtube tutorial: Laravel 5.4 Additional Login Conditions 
//      https://www.youtube.com/watch?v=Z8s6uhhD1Pk


namespace App\Http\Controllers\Auth;

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

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']);
    }

    /**
     * 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['active'] = 1;

        return $credentials;
    }

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

        // Load user from database
        $user = \App\User::where($this->username(), $request->{$this->username()})->first();

        // Check if user was successfully loaded, that the password matches
        // and active is not 1. If so, override the default error message.
        if ($user && \Hash::check($request->password, $user->password) && $user->active != 1) {
            $errors = [$this->username() => 'Your account is not active.'];
        }

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

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