protected SqlContentEntityStorageSchema::initializeRevisionTable(ContentEntityTypeInterface $entity_type)
Initializes common information for a revision table.
Parameters
\Drupal\Core\Entity\ContentEntityTypeInterface $entity_type: The entity type.
Return value
array A partial schema array for the revision table.
File
- core/lib/Drupal/Core/Entity/Sql/SqlContentEntityStorageSchema.php, line 878
Class
- SqlContentEntityStorageSchema
- Defines a schema handler that supports revisionable, translatable entities.
Namespace
Drupal\Core\Entity\Sql
Code
protected function initializeRevisionTable(ContentEntityTypeInterface $entity_type) {
$entity_type_id = $entity_type->id();
$id_key = $entity_type->getKey('id');
$revision_key = $entity_type->getKey('revision');
$schema = array(
'description' => "The revision table for $entity_type_id entities.",
'primary key' => array($revision_key),
'indexes' => array(),
'foreign keys' => array(
$entity_type_id . '__revisioned' => array(
'table' => $this->storage->getBaseTable(),
'columns' => array($id_key => $id_key),
),
),
);
$schema['indexes'][$this->getEntityIndexName($entity_type, $id_key)] = array($id_key);
$this->addTableDefaults($schema);
return $schema;
}
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