/**
  * Store a newly created resource in storage.
  *
  * @param  \Illuminate\Http\Request  $request
  * @return \Illuminate\Http\Response
  */
 public function store(Request $request)
 {
     $validator = Validator::make($request->all(), ['name' => 'required|unique:product_sub_categories']);
     if ($validator->fails()) {
         return redirect()->back()->withErrors($validator)->withInput();
     }
     $productSubCategory = new ProductSubCategory();
     $productSubCategory->name = $request->get('name');
     $productSubCategory->slug = str_slug($productSubCategory->name);
     $productSubCategory->product_category_id = $request->get('product_category_id');
     $productSubCategory->save();
     return redirect('/productsubcategory');
 }