abstract public function Schema::addUniqueKey in Drupal 8

Same name in this branch

1. 8 core/lib/Drupal/Core/Database/Schema.php \Drupal\Core\Database\Schema::addUniqueKey()
2. 8 core/lib/Drupal/Core/Database/Driver/sqlite/Schema.php \Drupal\Core\Database\Driver\sqlite\Schema::addUniqueKey()
3. 8 core/lib/Drupal/Core/Database/Driver/pgsql/Schema.php \Drupal\Core\Database\Driver\pgsql\Schema::addUniqueKey()
4. 8 core/lib/Drupal/Core/Database/Driver/mysql/Schema.php \Drupal\Core\Database\Driver\mysql\Schema::addUniqueKey()

Same name and namespace in other branches

1. 9 core/lib/Drupal/Core/Database/Schema.php \Drupal\Core\Database\Schema::addUniqueKey()

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()

Schema::addUniqueKey in core/lib/Drupal/Core/Database/Driver/sqlite/Schema.php

Add a unique key.

Schema::addUniqueKey in core/lib/Drupal/Core/Database/Driver/pgsql/Schema.php

Add a unique key.

Schema::addUniqueKey in core/lib/Drupal/Core/Database/Driver/mysql/Schema.php

Add a unique key.

File

core/lib/Drupal/Core/Database/Schema.php, line 457

Class

Schema

Provides a base implementation for Database Schema.

Namespace

Drupal\Core\Database

Code

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