/**
  * Store a newly created resource in storage.
  *
  * @param  \Illuminate\Http\Request $request
  * @param Vendor $vendor
  * @return \Illuminate\Http\Response
  */
 public function store(Request $request, Vendor $vendor)
 {
     $this->validate($request, ['name' => 'required|unique:categories', 'slug' => 'required|unique:categories']);
     $input = $request->except(['_token']);
     $vendor->fill($input)->save();
     return redirect('vendors')->with('success', 'Vendor successfully added.');
 }