abstract public function Schema::addUniqueKey

Same name in this branch

Add a unique key.

Parameters

$table: The table to be altered.

$name: The name of the key.

$fields: An array of field names.

Throws

Drupal\Core\Database\SchemaObjectDoesNotExistException If the specified table doesn't exist.

Drupal\Core\Database\SchemaObjectExistsException If the specified table already has a key by that name.

3 methods override Schema::addUniqueKey()

File

drupal/core/lib/Drupal/Core/Database/Schema.php, line 535
Definition of Drupal\Core\Database\Schema

Class

Schema

Namespace

Drupal\Core\Database

Code

public abstract function addUniqueKey($table, $name, $fields);