How does \Magento\Framework\EntityManager\MetadataPool::getMetadata() work?

dmitry_fedyuk · April 23, 2016, 9:52pm

Context:

magento/magento2/blob/958164/lib/internal/Magento/Framework/EntityManager/MetadataPool.php#L82-L87


/**
 * @param string $entityType
 * @return EntityMetadataInterface
 * @throws \Exception
 */
public function getMetadata($entityType)

github.com

magento/magento2/blob/958164/lib/internal/Magento/Framework/EntityManager/MetadataPool.php#L88-L97


{
    if (!isset($this->metadata[$entityType])) {
        throw new \Exception(sprintf('Unknown entity type: %s requested', $entityType));
    }
    if (!isset($this->registry[$entityType])) {


        $this->registry[$entityType] = $this->createMetadata($entityType);
    }
    return $this->registry[$entityType];
}

github.com

magento/magento2/blob/958164/lib/internal/Magento/Framework/EntityManager/MetadataPool.php#L53-L57


/**
 * @param string $entityType
 * @return EntityMetadataInterface
 */
private function createMetadata($entityType)

github.com

magento/magento2/blob/958164/lib/internal/Magento/Framework/EntityManager/MetadataPool.php#L59-L62


//@todo: use ID as default if , check is type has EAV attributes
$connectionName = isset($this->metadata[$entityType]['connectionName'])
    ? $this->metadata[$entityType]['connectionName']
    : 'default';

github.com

magento/magento2/blob/958164/lib/internal/Magento/Framework/EntityManager/MetadataPool.php#L63-L65


$eavEntityType = isset($this->metadata[$entityType]['eavEntityType'])
    ? $this->metadata[$entityType]['eavEntityType']
    : null;

github.com

magento/magento2/blob/958164/lib/internal/Magento/Framework/EntityManager/MetadataPool.php#L66-L68


$entityContext = isset($this->metadata[$entityType]['entityContext'])
    ? $this->metadata[$entityType]['entityContext']
    : [];

github.com

magento/magento2/blob/958164/lib/internal/Magento/Framework/EntityManager/MetadataPool.php#L69-L79


return $this->objectManager->create(
    EntityMetadataInterface::class,
    [
        'entityTableName' => $this->metadata[$entityType]['entityTableName'],
        'eavEntityType' => $eavEntityType,
        'connectionName' => $connectionName,
        'identifierField' => $this->metadata[$entityType]['identifierField'],
        'sequence' => $this->sequenceFactory->create($entityType, $this->metadata),
        'entityContext' => $entityContext
    ]
);

github.com

magento/magento2/blob/958164/app/etc/di.xml#L10-L10


<preference for="Magento\Framework\EntityManager\EntityMetadataInterface" type="Magento\Framework\EntityManager\EntityMetadata" />

dmitry_fedyuk · April 23, 2016, 9:53pm