public SqlContentEntityStorageSchema::onFieldStorageDefinitionDelete(FieldStorageDefinitionInterface $storage_definition)
Reacts to the deletion of a field storage definition.
Parameters
\Drupal\Core\Field\FieldStorageDefinitionInterface $storage_definition: The field being deleted.
Overrides FieldStorageDefinitionListenerInterface::onFieldStorageDefinitionDelete
File
- core/lib/Drupal/Core/Entity/Sql/SqlContentEntityStorageSchema.php, line 404
Class
- SqlContentEntityStorageSchema
- Defines a schema handler that supports revisionable, translatable entities.
Namespace
Drupal\Core\Entity\Sql
Code
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 | public function onFieldStorageDefinitionDelete(FieldStorageDefinitionInterface $storage_definition) { // Only configurable fields currently support purging, so prevent deletion // of ones we can't purge if they have existing data. // @todo Add purging to all fields: https://www.drupal.org/node/2282119. try { if (!($storage_definition instanceof FieldStorageConfigInterface) && $this->storage->countFieldData($storage_definition, TRUE)) { throw new FieldStorageDefinitionUpdateForbiddenException('Unable to delete a field (' . $storage_definition->getName() . ' in ' . $storage_definition->getTargetEntityTypeId() . ' entity) with data that cannot be purged.'); } } catch (DatabaseException $e) { // This may happen when changing field storage schema, since we are not // able to use a table mapping matching the passed storage definition. // @todo Revisit this once we are able to instantiate the table mapping // properly. See https://www.drupal.org/node/2274017. return; } // Retrieve a table mapping which contains the deleted field still. $table_mapping = $this->storage->getTableMapping( $this->entityManager->getLastInstalledFieldStorageDefinitions($this->entityType->id()) ); if ($table_mapping->requiresDedicatedTableStorage($storage_definition)) { // Move the table to a unique name while the table contents are being // deleted. $table = $table_mapping->getDedicatedDataTableName($storage_definition); $new_table = $table_mapping->getDedicatedDataTableName($storage_definition, TRUE); $this->database->schema()->renameTable($table, $new_table); if ($this->entityType->isRevisionable()) { $revision_table = $table_mapping->getDedicatedRevisionTableName($storage_definition); $revision_new_table = $table_mapping->getDedicatedRevisionTableName($storage_definition, TRUE); $this->database->schema()->renameTable($revision_table, $revision_new_table); } } // @todo Remove when finalizePurge() is invoked from the outside for all // fields: https://www.drupal.org/node/2282119. if (!($storage_definition instanceof FieldStorageConfigInterface)) { $this->performFieldSchemaOperation('delete', $storage_definition); }} |
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