public DefaultTableMapping::getFieldTableName($field_name)
Gets the table name for a given column.
Parameters
string $field_name: The name of the entity field to return the column mapping for.
Return value
string Table name for the given field.
Throws
\Drupal\Core\Entity\Sql\SqlContentEntityStorageException
Overrides TableMappingInterface::getFieldTableName
File
- core/lib/Drupal/Core/Entity/Sql/DefaultTableMapping.php, line 137
Class
- DefaultTableMapping
- Defines a default table mapping class.
Namespace
Drupal\Core\Entity\Sql
Code
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 | public function getFieldTableName($field_name) { $result = NULL; if (isset($this->fieldStorageDefinitions[$field_name])) { // Since a field may be stored in more than one table, we inspect tables // in order of relevance: the data table if present is the main place // where field data is stored, otherwise the base table is responsible for // storing field data. Revision metadata is an exception as it's stored // only in the revision table. // @todo The table mapping itself should know about entity tables. See /** @var \Drupal\Core\Entity\Sql\SqlContentEntityStorage $storage */ $storage = \Drupal::entityManager()->getStorage($this->entityType->id()); $storage_definition = $this->fieldStorageDefinitions[$field_name]; $table_names = array( $storage->getDataTable(), $storage->getBaseTable(), $storage->getRevisionTable(), $this->getDedicatedDataTableName($storage_definition), ); // Collect field columns. $field_columns = array(); foreach (array_keys($storage_definition->getColumns()) as $property_name) { $field_columns[] = $this->getFieldColumnName($storage_definition, $property_name); } foreach (array_filter($table_names) as $table_name) { $columns = $this->getAllColumns($table_name); // We assume finding one field column belonging to the mapping is enough // to identify the field table. if (array_intersect($columns, $field_columns)) { $result = $table_name; break; } } } if (!isset($result)) { throw new SqlContentEntityStorageException("Table information not available for the '$field_name' field."); } return $result;} |
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