/**
  * UPDATE /api/Units/{Units}
  * @param Request $request
  * @param Unit $unit
  * @return Response
  */
 public function update(Request $request, Unit $unit)
 {
     // Create an array with the new fields merged
     $data = array_compare($unit->toArray(), $request->only(['name']));
     $unit->update($data);
     $unit = $this->transform($this->createItem($unit, new UnitTransformer()))['data'];
     return response($unit, Response::HTTP_OK);
 }