/**
  * Update the specified resource in storage.
  *
  * @param  PositionRequest $request
  * @param  int $id
  * @return \Illuminate\Http\Response
  */
 public function update(PositionRequest $request, $id)
 {
     try {
         $position = Position::findOrFail($id);
         $position->fill($request->all())->save();
     } catch (ModelNotFoundException $ex) {
         Flash::error('No position available' . $ex);
         return redirect()->route('positions.index');
     }
     Flash::success('Position updated successfully');
     return redirect()->route('positions.index');
 }