public function update(Request $request, $id)
 {
     $this->wish = Wish::find($id);
     $this->wish->fill($request->all());
     if (Input::hasFile('picture')) {
         File::delete(public_path('img/wishes/') . $this->wish->picture);
         $this->wish->picture = $this->uploadImage(Input::file('picture'));
     }
     $this->wish->url = Parent::addScheme($request->url);
     $this->wish->save();
     return redirect()->route('wishes.index');
 }