9.5/_registry_8php_source.html

<?php

namespace ‪TYPO3\CMS\Core;


/*

 * This file is part of the TYPO3 CMS project.

 *

 * It is free software; you can redistribute it and/or modify it under

 * the terms of the GNU General Public License, either version 2

 * of the License, or any later version.

 *

 * For the full copyright and license information, please read the

 * LICENSE.txt file that was distributed with this source code.

 *

 * The TYPO3 project - inspiring people to share!

 */


use ‪TYPO3\CMS\Core\Database\Connection;

use ‪TYPO3\CMS\Core\Database\ConnectionPool;

use ‪TYPO3\CMS\Core\Utility\GeneralUtility;


class ‪Registry implements ‪SingletonInterface

{

    protected ‪$entries = [];


    protected ‪$loadedNamespaces = [];


    public function get($namespace, $key, $defaultValue = null)

    {

        $this->‪validateNamespace($namespace);

        if (!$this->‪isNamespaceLoaded($namespace)) {

            $this->‪loadEntriesByNamespace($namespace);

        }

        return $this->entries[$namespace][$key] ?? $defaultValue;

    }


    public function set($namespace, $key, $value)

    {

        $this->‪validateNamespace($namespace);

        if (!$this->‪isNamespaceLoaded($namespace)) {

            $this->‪loadEntriesByNamespace($namespace);

        }

        $serializedValue = serialize($value);

        $connection = GeneralUtility::makeInstance(ConnectionPool::class)

            ->getConnectionForTable('sys_registry');

        $rowCount = $connection->count(

            '*',

            'sys_registry',

            ['entry_namespace' => $namespace, 'entry_key' => $key]

        );

        if ((int)$rowCount < 1) {

            $connection->insert(

                'sys_registry',

                ['entry_namespace' => $namespace, 'entry_key' => $key, 'entry_value' => $serializedValue],

                ['entry_value' => ‪Connection::PARAM_LOB]

            );

        } else {

            $connection->update(

                'sys_registry',

                ['entry_value' => $serializedValue],

                ['entry_namespace' => $namespace, 'entry_key' => $key],

                ['entry_value' => ‪Connection::PARAM_LOB]

            );

        }

        $this->entries[$namespace][$key] = $value;

    }


    public function remove($namespace, $key)

    {

        $this->‪validateNamespace($namespace);

        GeneralUtility::makeInstance(ConnectionPool::class)

            ->getConnectionForTable('sys_registry')

            ->delete(

                'sys_registry',

                ['entry_namespace' => $namespace, 'entry_key' => $key]

            );

        unset($this->entries[$namespace][$key]);

    }


    public function ‪removeAllByNamespace($namespace)

    {

        $this->‪validateNamespace($namespace);

        GeneralUtility::makeInstance(ConnectionPool::class)

            ->getConnectionForTable('sys_registry')

            ->delete(

                'sys_registry',

                ['entry_namespace' => $namespace]

            );

        unset($this->entries[$namespace]);

    }


    protected function ‪isNamespaceLoaded($namespace)

    {

        return isset($this->loadedNamespaces[$namespace]);

    }


    protected function ‪loadEntriesByNamespace($namespace)

    {

        $this->‪validateNamespace($namespace);

        $this->entries[$namespace] = [];

        $result = GeneralUtility::makeInstance(ConnectionPool::class)

            ->getConnectionForTable('sys_registry')

            ->select(

                ['entry_key', 'entry_value'],

                'sys_registry',

                ['entry_namespace' => $namespace]

            );

        while ($row = $result->fetch()) {

            $this->entries[$namespace][$row['entry_key']] = unserialize($row['entry_value']);

        }

        $this->loadedNamespaces[$namespace] = true;

    }


    protected function ‪validateNamespace($namespace)

    {

        if (strlen($namespace) < 2) {

            throw new \InvalidArgumentException('Given namespace must be longer than two characters.', 1249755131);

        }

    }

}