1		<?php
			2		/**
			3		* @version      $Id: prerequisites.php 11891 2009-07-01 08:08:17Z alex $
			4		* @package      In-Bulletin
			5		* @copyright    Copyright (C) 1997 - 2009 Intechnic. All rights reserved.
			6		* @license      GNU/GPL
			7		* In-Portal is Open Source software.
			8		* This means that this software may have been modified pursuant
			9		* the GNU General Public License, and as distributed it includes
			10		* or is derivative of works licensed under the GNU General Public License
			11		* or other free or open source software licenses.
			12		* See http://www.in-portal.net/license/ for copyright notices and details.
			13		*/
			14		$prerequisite_class = 'InBulletinPrerequisites';
			15
			16		/**
			17		* Class, that holds all prerequisite scripts for "In-Bulletin" module
			18		*
			19		*/
			20		class InBulletinPrerequisites extends kHelper {
			21
			22		/**
			23		* Install toolkit instance
			24		*
			25		* @var kInstallToolkit
			26		*/
			27		var $_toolkit = null;
			28
			29		/**
			30		* Sets common instance of installator toolkit
			31		*
			32		* @param kInstallToolkit $instance
			33		*/
			34		function setToolkit(&$instance)
			35		{
			36		$this->_toolkit =& $instance;
			37		}
			38
			39		/**
			40		* Checks minimal version, that could be upgradeable
			41		*
			42		* @param string $mode when called mode {install, standalone, upgrade)
			43		*/
			44		function CheckPrerequisites($versions, $mode)
			45		{
			46		$errors = Array ();
			47
			48		if ($mode == 'standalone') {
			49		if (!$this->Application->isModuleEnabled('In-Portal')) {
			50		$errors[] = 'Please install or enable "In-Portal" module first';
			51		}
			52		}
			53
			54		if ($mode == 'upgrade') {
			55		$sql = 'SELECT Version
			56		FROM ' . TABLE_PREFIX . 'Modules
			57		WHERE Name = "In-Portal"';
			58		$inportal_version = $this->Conn->GetOne($sql);
			59
			60		if ($inportal_version === false) {
			61		// only, when In-Portal was installed
			62		return $errors;
			63		}
			64
			65		$min_version = '4.3.1';
			66
			67		$current_version = $this->_toolkit->ConvertModuleVersion($inportal_version);
			68		$needed_version = $this->_toolkit->ConvertModuleVersion($min_version);
			69		if ($current_version < $needed_version) {
			70		$errors[] = 'Please upgrade "In-Portal" to version ' . $min_version;
			71		}
			72		}
			73
			74		return $errors;
			75		}
			76		}
			77
			78		?>