Laravel select optgroup and separated values from database - laravel

Question

I write form to send values to database:
{!! Form::model($product, ['method'=>'PATCH','class'=>'form-horizontal','action'=>['ProductsController#updatechangeStatus', $product->id]]) !!}
{{ Form::select('userstan_id', array(
'Użytkownicy' => array($userList),
'Magazyny' => array($warehouseList),
), null, ['class' => 'form-control'])}}
{!! Form::submit('Tak, przenieś', ['class' => 'btn btn-primary']) !!}
{!! link_to('warehouse/'. $product->id, $title = 'Anuluj', ['class' => 'btn btn-danger']) !!}
{!! Form::close() !!}
public function changestatus($id){
$product = Product::find($id);
$userList = User::lists('name', 'id');
$warehouseList = warehouse::lists('name_warehouse', 'id');
return view('pages.changestatus', compact('userList', 'product', 'warehouseList'));
}
Laravel returned values in Form::select like this: http://iv.pl/images/97320689105137896288.png
but I want to return a result like this:
http://iv.pl/images/48707724105931389272.png
How can I do to be returned only name user and name warehouse and value was id number in Laravel (I tring with foreach, but in array foreach not working), like this:
<select>
<optgroup label="Użytkownicy">
<option value="1">michal</option>
<option value="2">mateusz</option>
</optgroup>
<optgroup label="Magazyny">
<option value="1">kosz</option>
<option value="2">zaginione</option>
</optgroup>
</select>

Answer 1

OK I write this: (now Laravel returned records correct look: klik!)
<select name="userstan_id" class="form-control">
<optgroup label="Użytkownicy">
#foreach($userListName as $user)
<option value="{{ $user->id }}">{{ $user->name }}</option>
#endforeach
</optgroup>
<optgroup label="Magazyny">
#foreach($warehouseList as $warehouse)
<option value="{{ $warehouse->id }}">{{ $warehouse->name_warehouse }}</option>
#endforeach
</optgroup>
</select>
Where name="userstan_id" is name of column where you want save or update record ;)