<?php
/************************************************************************
 * MXChange v0.2.1                                    Start: 10/11/2004 *
 * ================                             Last change: 10/11/2004 *
 *                                                                      *
 * -------------------------------------------------------------------- *
 * File              : ext-cache.php                                    *
 * -------------------------------------------------------------------- *
 * Short description : Caching system for SQL tables on hard disc       *
 * -------------------------------------------------------------------- *
 * Kurzbeschreibung  : Caching-System zum Auslagern von SQL-Tabellen    *
 *                     auf der Festplatte des Servers                   *
 * -------------------------------------------------------------------- *
 * $Revision::                                                        $ *
 * $Date::                                                            $ *
 * $Tag:: 0.2.1-FINAL                                                 $ *
 * $Author::                                                          $ *
 * Needs to be in all Files and every File needs "svn propset           *
 * svn:keywords Date Revision" (autoprobset!) at least!!!!!!            *
 * -------------------------------------------------------------------- *
 * Copyright (c) 2003 - 2009 by Roland Haeder                           *
 * For more information visit: http://www.mxchange.org                  *
 *                                                                      *
 * This program is free software; you can redistribute it and/or modify *
 * it under the terms of the GNU General Public License as published by *
 * the Free Software Foundation; either version 2 of the License, or    *
 * (at your option) any later version.                                  *
 *                                                                      *
 * This program is distributed in the hope that it will be useful,      *
 * but WITHOUT ANY WARRANTY; without even the implied warranty of       *
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the        *
 * GNU General Public License for more details.                         *
 *                                                                      *
 * You should have received a copy of the GNU General Public License    *
 * along with this program; if not, write to the Free Software          *
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,               *
 * MA  02110-1301  USA                                                  *
 ************************************************************************/

// Some security stuff...
if (!defined('__SECURITY')) {
	die();
} // END - if

// Version number
setThisExtensionVersion('0.2.5');

// Version history array (add more with , '0.1.0' and so on)
setExtensionVersionHistory(array('0.0', '0.0.1', '0.0.2', '0.0.3', '0.0.4', '0.0.5', '0.0.6', '0.0.7', '0.0.8', '0.0.9', '0.1.0', '0.1.1', '0.1.2', '0.1.3', '0.1.4', '0.1.5', '0.1.6', '0.1.7', '0.1.8', '0.1.9', '0.2.0', '0.2.1', '0.2.2', '0.2.3', '0.2.4', '0.2.5'));

// Keep this extension always active!
setExtensionAlwaysActive('Y');

// Which load mode?
switch (getExtensionMode()) {
	case 'register': // Do stuff when installation is running (modules.php?module=admin is called)
		break;

	case 'remove': // Do stuff when removing extension
		// SQL commands to run
		addExtensionSql("DELETE LOW_PRIORITY FROM `{?_MYSQL_PREFIX?}_admin_menu` WHERE `what` IN('cache_stats','config_config')");

		// Unregister all filters
		unregisterFilter('extension_update', 'CACHE_DESTROY_ON_EXT_CHANGE', true, getExtensionDryRun());
		unregisterFilter('post_extension_installed', 'CACHE_DESTROY_ON_EXT_CHANGE', true, getExtensionDryRun());
		unregisterFilter('post_extension_run_sql', 'CACHE_DESTROY_ON_EXT_CHANGE', true, getExtensionDryRun());
		unregisterFilter('post_admin_added', 'CACHE_DESTROY_ON_ADMIN_CHANGE', true, getExtensionDryRun());
		unregisterFilter('post_admin_edited', 'CACHE_DESTROY_ON_ADMIN_CHANGE', true, getExtensionDryRun());
		unregisterFilter('post_admin_deleted', 'CACHE_DESTROY_ON_ADMIN_CHANGE', true, getExtensionDryRun());
		unregisterFilter('post_admin_reset_pass', 'CACHE_DESTROY_ON_ADMIN_CHANGE', true, getExtensionDryRun());
		unregisterFilter('extension_remove', 'CACHE_DESTROY_ALL', true, getExtensionDryRun());
		unregisterFilter('shutdown', 'CACHE_DESTROY_FILTER', true, getExtensionDryRun());
		break;

	case 'activate': // Do stuff when admin activates this extension
		// SQL commands to run
		addExtensionSql('');
		break;

	case 'deactivate': // Do stuff when admin deactivates this extension
		// SQL commands to run
		addExtensionSql('');
		break;

	case 'update': // Update an extension
		// Which version?
		switch (getCurrentExtensionVersion()) {
			case '0.0.1': // SQL queries for v0.0.1
				// Update notes (these will be set as task text!)
				setExtensionUpdateNotes("Es wurde die Zeitmarke der Cache-Datei extensions.cache mit ber&uuml;cksichtigt. Dies hatte die Folge, dass wenn bei einem Gast die Datei aktualisiert wurde, nur aktivierte und nicht die deaktivierten mit geladen wurden. Folglich fiehlen einfach ein paar Erweiterungen aus.");
				break;

			case '0.0.2': // SQL queries for v0.0.2
				// Update notes (these will be set as task text!)
				setExtensionUpdateNotes("Fehler beseitigt, wenn error_reporting=E_ALL gesetzt ist.");
				break;

			case '0.0.3': // SQL queries for v0.0.3
				// Update notes (these will be set as task text!)
				setExtensionUpdateNotes("Cache-Update repariert.");
				break;

			case '0.0.4': // SQL queries for v0.0.4
				// Is the cache extension itself there?
				if (isExtensionActive('cache')) {
					// Check for cache when extension is already installed
					if ($GLOBALS['cache_instance']->loadCacheFile('extension')) $GLOBALS['cache_instance']->removeCacheFile();
				} // END - if

				// Update notes (these will be set as task text!)
				setExtensionUpdateNotes("Spalte &quot;keep_active&quot; ist hinzugef&uuml;gt. Cache wurde reinitialisiert.");
				break;

			case '0.0.5': // SQL queries for v0.0.5
				// Update notes (these will be set as task text!)
				setExtensionUpdateNotes("Registrierung der Cache-Erweiterung repariert");
				break;

			case '0.0.6': // SQL queries for v0.0.6
				// Update notes (these will be set as task text!)
				setExtensionUpdateNotes("Validierung der Cache-Datei admins.cache integriert.");
				break;

			case '0.0.7': // SQL queries for v0.0.7
				addExtensionSql("ALTER TABLE `{?_MYSQL_PREFIX?}_config` ADD db_hits BIGINT(20) UNSIGNED NOT NULL DEFAULT 0");
				addExtensionSql("ALTER TABLE `{?_MYSQL_PREFIX?}_config` ADD cache_hits BIGINT(20) UNSIGNED NOT NULL DEFAULT 0");
				addAdminMenuSql('stats','cache_stats','DB-Cache','Auf Cache und gesamte Datenbank registrierte Anfragen anzeigen.', 4);

				// Update notes (these will be set as task text!)
				setExtensionUpdateNotes("Hits auf den Cache werden gez&auml;hlt.");
				break;

			case '0.0.8': // SQL queries for v0.0.8
				// Update notes (these will be set as task text!)
				setExtensionUpdateNotes("Das Umschreiben der Cache-Daten hat eine Fehlermeldung <strong>Falsches Passwort!</strong> im Admin-Bereich verursacht.");
				break;

			case '0.0.9': // SQL queries for v0.0.9
				// Update notes (these will be set as task text!)
				setExtensionUpdateNotes("Interne Datenfeld-Management korregiert und Cache-Statistiken korregiert.");
				break;

			case '0.1.0': // SQL queries for v0.2.1
				// Update notes (these will be set as task text!)
				setExtensionUpdateNotes("Problem mit fehlender admins-Erweiterung beseitigt.");
				break;

			case '0.1.1': // SQL queries for v0.1.1
				// Update notes (these will be set as task text!)
				setExtensionUpdateNotes("Fehler <strong>Division durch 0</strong> repariert in den DB-Cache Statistiken.");
				break;

			case '0.1.2': // SQL queries for v0.1.2
				// Update notes (these will be set as task text!)
				setExtensionUpdateNotes("Die Tabelen <strong>{?_MYSQL_PREFIX?}_config</strong>, <strong>{?_MYSQL_PREFIX?}_refsystem</strong>, <strong>{?_MYSQL_PREFIX?}_refdepths</strong> und <strong>{?_MYSQL_PREFIX?}_mod_reg</strong> werden nun auch ausgelagert.");
				break;

			case '0.1.3': // SQL queries for v0.1.3
				// Update notes (these will be set as task text!)
				setExtensionUpdateNotes("Ung&uuml;ltiges Update.");
				break;

			case '0.1.4': // SQL queries for v0.1.4
				// Update notes (these will be set as task text!)
				setExtensionUpdateNotes("Fehler <strong>Division durch 0</strong> repariert in <strong>inc/load_cache.php</strong>.");
				break;

			case '0.1.5': // SQL queries for v0.1.5
				// Update notes (these will be set as task text!)
				setExtensionUpdateNotes("Weitere Fehler im System beseitigt.");
				break;

			case '0.1.6': // SQL queries for v0.1.6
				// Update notes (these will be set as task text!)
				setExtensionUpdateNotes("Probleme w&auml;hrend des Installationsvorganges beseitigt.");
				break;

			case '0.1.7': // SQL queries for v0.1.7
				// Update notes (these will be set as task text!)
				setExtensionUpdateNotes("CSS-Klassenname gefixt in Templates.");
				break;

			case '0.1.8': // SQL queries for v0.1.8
				// Update notes (these will be set as task text!)
				setExtensionUpdateNotes("Daten von installierten Themes werden nun gecacht.");
				break;

			case '0.1.9': // SQL queries for v0.1.9
				// Update notes (these will be set as task text!)
				setExtensionUpdateNotes("Update nicht mehr g&uuml;ltig.");
				break;

			case '0.2.0': // SQL queries for v0.2.0
				// This update depends on sql_patches
				addExtensionUpdateDependency('sql_patches');

				// Update notes (these will be set as task text!)
				setExtensionUpdateNotes("Die Erweiterung h&auml;ngt nun von der <strong>sql_patches</strong> ab.");
				break;

			case '0.2.1': // SQL queries for v0.2.1
				// Register the new filter
				registerFilter('extension_update', 'CACHE_DESTROY_ON_EXT_CHANGE', false, true, getExtensionDryRun());
				registerFilter('post_extension_installed', 'CACHE_DESTROY_ON_EXT_CHANGE', false, true, getExtensionDryRun());
				registerFilter('post_extension_run_sql', 'CACHE_DESTROY_ON_EXT_CHANGE', false, true, getExtensionDryRun());
				registerFilter('post_admin_added', 'CACHE_DESTROY_ON_ADMIN_CHANGE', false, true, getExtensionDryRun());
				registerFilter('post_admin_edited', 'CACHE_DESTROY_ON_ADMIN_CHANGE', false, true, getExtensionDryRun());
				registerFilter('post_admin_deleted', 'CACHE_DESTROY_ON_ADMIN_CHANGE', false, true, getExtensionDryRun());
				registerFilter('post_admin_reset_pass', 'CACHE_DESTROY_ON_ADMIN_CHANGE', false, true, getExtensionDryRun());
				registerFilter('extension_remove', 'CACHE_DESTROY_ALL', false, true, getExtensionDryRun());

				// Update notes (these will be set as task text!)
				setExtensionUpdateNotes("Filter f&uuml;r Erweiterungsmanagement hinzugef&uuml;gt.");
				break;

			case '0.2.2': // SQL queries for v0.2.2
				// Update notes (these will be set as task text!)
				setExtensionUpdateNotes("Update nicht mehr g&uuml;ltig.");
				break;

			case '0.2.3': // SQL queries for v0.2.3
				addExtensionSql("ALTER TABLE `{?_MYSQL_PREFIX?}_config` ADD cache_filter ENUM('Y','N') NOT NULL DEFAULT 'Y'");

				// Update notes (these will be set as task text!)
				setExtensionUpdateNotes("Cachen von Filtern hinzugef&uuml;gt.");

				// Register a new filter
				registerFilter('shutdown', 'CACHE_DESTROY_FILTER', false, true, getExtensionDryRun());
				break;

			case '0.2.4': // SQL queries for v0.2.4
				// SQL commands to run
				addExtensionSql("DELETE LOW_PRIORITY FROM `{?_MYSQL_PREFIX?}_admin_menu` WHERE `what` IN('config_cache')");

				// Remove config entries
				addExtensionSql("ALTER TABLE `{?_MYSQL_PREFIX?}_config` DROP `cache_themes`");
				addExtensionSql("ALTER TABLE `{?_MYSQL_PREFIX?}_config` DROP `cache_admins`");
				addExtensionSql("ALTER TABLE `{?_MYSQL_PREFIX?}_config` DROP `cache_acls`");
				addExtensionSql("ALTER TABLE `{?_MYSQL_PREFIX?}_config` DROP `cache_exts`");
				addExtensionSql("ALTER TABLE `{?_MYSQL_PREFIX?}_config` DROP `cache_config`");
				addExtensionSql("ALTER TABLE `{?_MYSQL_PREFIX?}_config` DROP `cache_modreg`");
				addExtensionSql("ALTER TABLE `{?_MYSQL_PREFIX?}_config` DROP `cache_refdepth`");
				addExtensionSql("ALTER TABLE `{?_MYSQL_PREFIX?}_config` DROP `cache_refsys`");

				// Update notes (these will be set as task text!)
				setExtensionUpdateNotes("Der Cache hat keine Konfiguration mehr.");
				break;

			case '0.2.5': // SQL queries for v0.2.5
				// Update notes (these will be set as task text!)
				setExtensionUpdateNotes("Daten von gefundenen Sprachdateien werden zu den Erweiterungen gecacht.");
				break;
		}
		break;

	case 'modify': // When the extension got modified
		break;

	case 'test': // For testing purposes. For details see file inc/modules/admin/what-extensions.php, arround line 305.
		break;

	case 'init': // Do stuff when extension is initialized
		break;

	default: // Unknown extension mode
		DEBUG_LOG(__FILE__, __LINE__, sprintf("Unknown extension mode %s detected.", getExtensionMode()));
		break;
}

// [EOF]
?>