Nextras\Orm\Mapper\Memory\ArrayMapper::initializeData PHP Метод

    protected function initializeData()
    {
        if ($this->data !== null) {
            return;
        }
        $repository = $this->getRepository();
        $data = $this->readEntityData();
        $this->data = [];
        foreach ($data as $row) {
            if ($row === null) {
                // auto increment placeholder
                continue;
            }
            $entity = $repository->hydrateEntity($row);
            $this->data[implode(',', (array) $entity->getPersistedId())] = $entity;
        }
    }