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abstract public function Schema::addUniqueKey in Drupal 9

Same name in this branch
  1. 9 core/lib/Drupal/Core/Database/Schema.php \Drupal\Core\Database\Schema::addUniqueKey()
  2. 9 core/lib/Drupal/Core/Database/Driver/sqlite/Schema.php \Drupal\Core\Database\Driver\sqlite\Schema::addUniqueKey()
  3. 9 core/lib/Drupal/Core/Database/Driver/pgsql/Schema.php \Drupal\Core\Database\Driver\pgsql\Schema::addUniqueKey()
  4. 9 core/lib/Drupal/Core/Database/Driver/mysql/Schema.php \Drupal\Core\Database\Driver\mysql\Schema::addUniqueKey()
  5. 9 core/tests/fixtures/database_drivers/module/corefake/src/Driver/Database/corefakeWithAllCustomClasses/Schema.php \Drupal\corefake\Driver\Database\corefakeWithAllCustomClasses\Schema::addUniqueKey()
Same name and namespace in other branches
  1. 8 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.

4 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.
Schema::addUniqueKey in core/tests/fixtures/database_drivers/module/corefake/src/Driver/Database/corefakeWithAllCustomClasses/Schema.php
Add a unique key.

File

core/lib/Drupal/Core/Database/Schema.php, line 419

Class

Schema
Provides a base implementation for Database Schema.

Namespace

Drupal\Core\Database

Code

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