public function store(Requests\ProductRequest $request)
 {
     if ($request->hasFile('photo')) {
         $photoName = $request->file('photo')->getClientOriginalName();
         $request->file('photo')->move(public_path() . '/uploads', $photoName);
         $data = $request->all();
         $data['photoName'] = '/uploads/' . $photoName;
         $request->replace($data);
     }
     $this->productRep->store($request->all(), $request->categories);
     return redirect('/product');
 }