Test-Laravel-Eloquent-Basics/app/Observers/ProjectObserver.php

<?php

namespace App\Observers;

use App\Models\Project;
use App\Models\Stat;

class ProjectObserver
{
    /**
     * Handle the Project "created" event.
     */
    public function creating(Project $project): void
    {

        Stat::first()->increment('projects_count');
    }

    /**
     * Handle the Project "updated" event.
     */
    public function updated(Project $project): void
    {
        //
    }

    /**
     * Handle the Project "deleted" event.
     */
    public function deleted(Project $project): void
    {
        //
    }

    /**
     * Handle the Project "restored" event.
     */
    public function restored(Project $project): void
    {
        //
    }

    /**
     * Handle the Project "force deleted" event.
     */
    public function forceDeleted(Project $project): void
    {
        //
    }
}