fetchIntegrationIdOfAssociatedApp example

$integrationId = $this->getIntegrationId($context);
        $violationList = new ConstraintViolationList();

        foreach ($event->getCommands() as $command) {
            if (
                !($command->getDefinition() instanceof CustomFieldSetDefinition)
                || $command instanceof InsertCommand
            ) {
                continue;
            }

            $appIntegrationId = $this->fetchIntegrationIdOfAssociatedApp($command);
            if (!$appIntegrationId) {
                continue;
            }

            if ($integrationId !== $appIntegrationId) {
                $this->addViolation($violationList, $command);
            }
        }
        if ($violationList->count() > 0) {
            $event->getExceptions()->add(new WriteConstraintViolationException($violationList));
        }
    }