protected SqlContentEntityStorageSchema::addSharedTableFieldForeignKey(FieldStorageDefinitionInterface $storage_definition, &$schema, $foreign_table, $foreign_column)
Adds a foreign key for the specified field to the given schema definition.
Parameters
\Drupal\Core\Field\FieldStorageDefinitionInterface $storage_definition: The storage definition of the field to which to add a foreign key.
array $schema: A reference to the schema array to be updated.
string $foreign_table: The foreign table.
string $foreign_column: The foreign column.
File
- core/lib/Drupal/Core/Entity/Sql/SqlContentEntityStorageSchema.php, line 1690
Class
- SqlContentEntityStorageSchema
- Defines a schema handler that supports revisionable, translatable entities.
Namespace
Drupal\Core\Entity\Sql
Code
protected function addSharedTableFieldForeignKey(FieldStorageDefinitionInterface $storage_definition, &$schema, $foreign_table, $foreign_column) {
$name = $storage_definition->getName();
$real_key = $this->getFieldSchemaIdentifierName($storage_definition->getTargetEntityTypeId(), $name);
$schema['foreign keys'][$real_key] = array(
'table' => $foreign_table,
'columns' => array($name => $foreign_column),
);
}
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