iluminar/goodwork

use App\Base\Models\Notification;

class Activity
{
    public function getActivitiesForGroup($groupType, $groupId)
    {
        return Notification::where(['group_type' => $groupType, 'group_id' => $groupId])->orderBy('created_at', 'desc')->get()->groupBy('date');
    }
}

use App\Activity\Activity;

class ActivityController extends Controller
{
    public function index()
    {
        $activity = new Activity();
        $activities = $activity->getActivitiesForGroup(request('group_type'), request('group_id'));

        return response()->json([
            'status'     => 'success',
            'activities' => $activities,
        ]);
    }
}