How does \Magento\Framework\Model\ResourceModel\Db\VersionControl\Snapshot::registerSnapshot() work?

dmitry_fedyuk (Dmitrii Fediuk) April 26, 2016, 4:03pm 1

Context:

github.com

magento/magento2/blob/958164/lib/internal/Magento/Framework/Model/ResourceModel/Db/VersionControl/Snapshot.php#L36-L43


/**
 * Register snapshot of entity data, for tracking changes
 *
 * @param \Magento\Framework\DataObject $entity
 * @return void
 * @SuppressWarnings(PHPMD.UnusedLocalVariable)
 */
public function registerSnapshot(\Magento\Framework\DataObject $entity)

github.com

magento/magento2/blob/958164/lib/internal/Magento/Framework/Model/ResourceModel/Db/VersionControl/Snapshot.php#L45-L45


$metaData = $this->metadata->getFields($entity);

Details: How does \Magento\Framework\Model\ResourceModel\Db\VersionControl\Metadata::getFields() work?

github.com

magento/magento2/blob/958164/lib/internal/Magento/Framework/Model/ResourceModel/Db/VersionControl/Snapshot.php#L46-L46


$filteredData = array_intersect_key($entity->getData(), $metaData);

github.com

magento/magento2/blob/958164/lib/internal/Magento/Framework/Model/ResourceModel/Db/VersionControl/Snapshot.php#L47-L47


$data = array_merge($metaData, $filteredData);

github.com

magento/magento2/blob/958164/lib/internal/Magento/Framework/Model/ResourceModel/Db/VersionControl/Snapshot.php#L48-L48


$this->snapshotData[get_class($entity)][$entity->getId()] = $data;

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