Laravel to get db values from session id

问题:

I am trying to create a session and retrieve it and get db values using the session id

(i.e) While on click edit i like to store the data-id in session and from session id i like to retrieve the db values using Eloquent

so far i stored and retrieve the session the only problem i don't know to get db from that session id here is my following code

My ajax call :

    $(document).ready(function(){
     $('.editaction').click(function(){
       var editaction=($(this).attr("data-id"));
       console.log(editaction);
       $.ajaxSetup({
        headers: {
         'X-CSRF-TOKEN': $('meta[name="csrf-token"]').attr('content')
                 }
                });
       $.ajax({
         type:"POST",
         url:"/design_session",
         data:"design_id="+editaction,
         success:function(results){
         window.location.href="/design_edit";
              }
            }); 
        });
    })  

Db controller page :

public function show()
{
    $design_id = $request->session()->get('design_id');
    return view('pages.design_edit')->with('design',$design_id);
}  

so far i am getting redirect to another page successfully but i don't how to invoke or pass the ajax through the function to get db values