share method between controllers Laravel 5.2

In several controllers i have to use the same method to show results as table with column sorting functionality:

 public function showSearchResults(Request $req){

        $query=Service::where('title', $req->search);

        // Columns sorting 
        if ($req->has('order')){
            $order= $req->order=='asc' ? 'asc' : 'desc';
            $order_inverse=$req->order=='asc' ? 'desc' : 'asc';
        } else {
            $order='desc';
            $order_inverse='asc';
        }

         ...


        $url=$req->url().'?'.http_build_query($req->except('sortby','order','page'));
        $results=$query->with('type')->paginate(15)->appends($req->all());


        return View::make('services.search_results')
                    ->with('results', $results)
                    ->with('url',$url)
                    ->with('sortby', $sortby)
                    ->with('order', $order)
                    ->with('order_inverse', $order_inverse);

    }

What is the best approach to avoid DRY in such case?

via Chebli Mohamed