/**
  * Update the specified resource in storage.
  *
  * @param \Veterinaria\Http\Requests\ProviderRequest $request
  * @param  int $id
  * @return \Illuminate\Http\Response
  */
 public function update(ProviderRequest $request, $id)
 {
     $provider = Provider::find($id);
     $provider->fill($request->all());
     if (UtilsController::validateRut($provider->rut, $provider->verifying_digit)) {
         $provider->save();
         Session::flash('message', 'Proveedor editado correctamente');
         return Redirect::to('/provider');
     } else {
         Session::flash('message-error', 'El RUT no es correcto');
         return view('provider.edit', compact('provider'));
     }
 }