LinkStack/app/Http/Controllers/Auth/RegisteredUserController.php

<?php

namespace App\Http\Controllers\Auth;

use App\Http\Controllers\Controller;
use App\Models\User;
use App\Providers\RouteServiceProvider;
use Illuminate\Auth\Events\Registered;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Auth;
use Illuminate\Support\Facades\Hash;
use Illuminate\Support\Facades\DB;

class RegisteredUserController extends Controller
{
    /**
     * Display the registration view.
     *
     * @return \Illuminate\View\View
     */
    public function create()
    {
        return view('auth.register');
    }

    /**
     * Handle an incoming registration request.
     *
     * @param  \Illuminate\Http\Request  $request
     * @return \Illuminate\Http\RedirectResponse
     *
     * @throws \Illuminate\Validation\ValidationException
     */
    public function store(Request $request)
    {
        $request->validate([
            'name' => 'required|string|max:255|unique:users',
            'email' => 'required|string|email|max:255|unique:users',
            'password' => 'required|string|confirmed|min:8',
        ]);

        $name = $request->input('name');

        if(DB::table('users')->where('littlelink_name', $request->name)->exists())
        {
            Auth::login($user = User::create([
                'name' => $request->name,
                'email' => $request->email,
                'password' => Hash::make($request->password),
                'role' => 'user',
                'block' => 'no',
            ]));
        } else {
            Auth::login($user = User::create([
                'name' => $request->name,
                'email' => $request->email,
                'littlelink_name' => $request->name,
                'password' => Hash::make($request->password),
                'role' => 'user',
                'block' => 'no',
            ]));
        }



        event(new Registered($user));

        return redirect(RouteServiceProvider::HOME);
    }
}