<?php
declare(strict_types=1);
/**
* CakePHP(tm) : Rapid Development Framework (https://cakephp.org)
* Copyright (c) Cake Software Foundation, Inc. (https://cakefoundation.org)
*
* Licensed under The MIT License
* For full copyright and license information, please see the LICENSE.txt
* Redistributions of files must retain the above copyright notice.
*
* @copyright Copyright (c) Cake Software Foundation, Inc. (https://cakefoundation.org)
* @link https://cakephp.org CakePHP(tm) Project
* @since 4.0.0
* @license https://opensource.org/licenses/mit-license.php MIT License
*/
namespace Cake\Database;
use Cake\Datasource\ConnectionInterface;
/**
* Defines the interface for a fixture that needs to manage constraints.
*
* If an implementation of `Cake\Datasource\FixtureInterface` also implements
* this interface, the FixtureManager will use these methods to manage
* a fixtures constraints.
*/
interface ConstraintsInterface
{
/**
* Build and execute SQL queries necessary to create the constraints for the
* fixture
*
* @param \Cake\Datasource\ConnectionInterface $connection An instance of the database
* into which the constraints will be created.
* @return bool on success or if there are no constraints to create, or false on failure
*/
public function createConstraints(ConnectionInterface $connection): bool;
/**
* Build and execute SQL queries necessary to drop the constraints for the
* fixture
*
* @param \Cake\Datasource\ConnectionInterface $connection An instance of the database
* into which the constraints will be dropped.
* @return bool on success or if there are no constraints to drop, or false on failure
*/
public function dropConstraints(ConnectionInterface $connection): bool;
}