/**
  * MATRIX based, for supporting the grid-view editor
  *
  * @param Request $request
  * @param Response $response
  * @return int
  */
 public function schemaSavePOST(Request $request, Response $response)
 {
     $this->logger->info(__CLASS__ . '::' . __FUNCTION__);
     $parsed = $request->getParsedBody();
     $this->logger->info(__CLASS__ . '::' . __FUNCTION__ . ': $parsed: ' . json_encode($parsed, JSON_UNESCAPED_SLASHES));
     $schema_id = $parsed['schema_id'];
     $title = $parsed['title'];
     $description = $parsed['description'];
     $mimeType = $parsed['mimeType'];
     $matrix = $parsed['matrix'];
     $service = new SchemaService();
     $this->logger->info(__CLASS__ . '::' . __FUNCTION__ . ': calling service->storeSchema: ' . $schema_id . ', ' . $mimeType . ', ' . $description);
     $resp = $service->storeSchema($schema_id, $mimeType, $description, $title, $matrix);
     $this->logger->info(__CLASS__ . '::' . __FUNCTION__ . ': $resp: ' . json_encode($resp, JSON_UNESCAPED_SLASHES));
     return $response->getBody()->write(json_encode($resp, JSON_UNESCAPED_SLASHES));
 }