SqlContentEntityStorageSchema::getFieldUniqueKeys

protected SqlContentEntityStorageSchema::getFieldUniqueKeys($field_name, array $field_schema, array $column_mapping)

Gets a unique key schema array for a given field.

Parameters

string $field_name: The name of the field.

array $field_schema: The schema of the field.

string[] $column_mapping: A mapping of field column names to database column names.

Return value

array The schema definition for the unique keys.

File

core/lib/Drupal/Core/Entity/Sql/SqlContentEntityStorageSchema.php, line 657

Class

SqlContentEntityStorageSchema

Defines a schema handler that supports revisionable, translatable entities.

Namespace

Drupal\Core\Entity\Sql

Code

protected function getFieldUniqueKeys($field_name, array $field_schema, array $column_mapping) {
  return $this->getFieldSchemaData($field_name, $field_schema, $column_mapping, 'unique keys');
}