Version 3.3.4

upload/admin/applications/core/setup/upgradeCheck.php

@@ -0,0 +1,71 @@
+<?php
+/**
+ * <pre>
+ * Invision Power Services
+ * IP.Board - requirements checker
+ * Last Updated: $Date: 2012-06-12 10:14:49 -0400 (Tue, 12 Jun 2012) $
+ * </pre>
+ *
+ * @author 		$Author: bfarber $ (Orginal: Mark)
+ * @copyright	(c) 2010 Invision Power Services, Inc.
+ * @license		http://www.invisionpower.com/company/standards.php#license
+ * @package		IP.Board
+ * @link		http://www.invisionpower.com
+ * @since		8th September 2010
+ * @version		$Revision: 10914 $
+ */
+
+class core_upgradeCheck
+{
+	/**
+	 * Check we can upgrade
+	 *
+	 * @return	mixed	Boolean true or error message
+	 */
+	public function checkForProblems()
+	{
+		//-----------------------------------------
+		// Compatibility check
+		//-----------------------------------------
+		
+		$minAppVersions = array(
+			// 'app' => minVersionNumber
+		);
+		
+		$args = func_get_args();
+		if ( !empty( $args ) )
+		{
+			$errors = array();
+			foreach ( $minAppVersions as $k => $v )
+			{
+				if ( !isset( ipsRegistry::$applications[ $k ] ) or !ipsRegistry::$applications[ $k ]['app_enabled'] )
+				{
+					continue;
+				}
+			
+				$numbers = IPSSetUp::fetchAppVersionNumbers( $k );
+			
+				/* Are we upgrading this app now? */
+				if ( isset( $args[0][ $k ] ) )
+				{
+					$ourVersion = $numbers['latest'][0];
+				}
+				/* No - check installed version */
+				else
+				{
+					$ourVersion = $numbers['current'][0];
+				}
+				
+				if ( $v > $ourVersion )
+				{
+					$appName = ipsRegistry::$applications[ $k ]['app_title'];
+					$allVersions = IPSSetUp::fetchXmlAppVersions( $k );
+					
+					return "The version of {$appName} you have installed will not work with this version of IP.Board. You must upgrade {$appName} to {$allVersions[ $v ]} or higher, or disable it in the Admin CP in order continue.";
+				}
+			}
+		}
+		
+		return TRUE;
+	}
+}