Ramm

$offers = Offer::where(function($query) {
    $query->where('is_active', true)->orWhere('is_archive', true);
})->where('category_id',$activeCat->id)->get();

Route::group(['prefix' => 'user'], function () {
    Auth::routes();
});

$items = Items::with(['order' => function($q){
   $q->with('invoice');
}])->get();

$table->foreign('author_id')->references('id')->on('users');