ChallengesController.php

<?php

namespace App\Http\Controllers;

use App\Models\Challenge;
use App\Models\ChallengeApplication;
use App\Rules\GitHubRepositoryExists;
use Illuminate\Contracts\View\View;
use Illuminate\Http\RedirectResponse;
use Illuminate\Http\Request;
use Illuminate\Validation\Rule;
use Orchid\Support\Facades\Toast;

class ChallengesController extends Controller
{
    /**
     * @param \Illuminate\Http\Request $request
     *
     * @return \\Illuminate\Contracts\View\View
     */
    public function index(Request $request)
    {
        $challenge = Challenge::latest()->first();

        $registerApplication = $challenge?->applications()
            ->where('user_id', $request->user()?->id)
            ->first();

        return view('challenges.index', [
            'challenge'           => $challenge,
            'readyApplicationUrl' => $registerApplication?->url(),
        ]);
    }

    /**
     * @return \Illuminate\Contracts\View\View
     */
    public function past()
    {
        $past = Challenge::whereDate('stop_at', '<', now())
            ->orderBy('start_at', 'desc')
            ->simplePaginate(5);

        return view('challenges.past', [
            'past' => $past,
        ]);
    }

    /**
     * Показывает форму регистрации на вызов.
     */
    public function edit(ChallengeApplication $repo): View
    {
        $this->authorize('update', $repo);

        return view('challenges.registration', [
            'repo' => $repo,
        ]);
    }

    /**
     * Обрабатывает заявку на вызов.
     */
    public function update(Request $request, ChallengeApplication $repo): RedirectResponse
    {
        $this->authorize('update', $repo);

        $challenge = Challenge::active()->first();

        $request->validate([
            'github_repository' => [
                'string',
                'required',
                'regex:/^[a-z0-9_\-]+\/[a-z0-9_\-]+$/i',
                new GitHubRepositoryExists(),
                Rule::unique('challenge_applications')->where('challenge_id', $challenge->id)->where('user_id', $request->user()->id),
                Rule::unique('challenge_applications')->where('challenge_id', $challenge->id)->where('github_repository', $request->input('github_repository')),
            ],
        ]);

        $repo->fill($request->all())
            ->challenge()
            ->associate($challenge);

        $request->user()
            ->challengesReapositories()
            ->save($repo);

        Toast::success('Ваша заявка принята.')->disableAutoHide();

        return redirect()->route('challenges');
    }
}