/**
  * Update the specified resource in storage.
  * PUT /medications/{id}
  *
  * @param  int  $id
  * @return Response
  */
 public function update($id)
 {
     $medication = Medication::findOrFail($id);
     $validator = Validator::make($data = Input::all(), Medication::$rules);
     if ($validator->fails()) {
         return Redirect::back()->withErrors($validator)->withInput();
     }
     $medication->update($data);
     return Redirect::route('patient-chart-get', $medication->patient_id)->with('global', "Medication successfully updated");
 }