Index: kernel/db/db_connection.php
===================================================================
--- kernel/db/db_connection.php	(revision 15906)
+++ kernel/db/db_connection.php	(working copy)
@@ -18,7 +18,7 @@
 	 * Multi database connection class
 	 *
 	 */
-	class kDBConnection extends kBase {
+	class kDBConnection extends kBase implements IDBConnection {
 
 		/**
 		 * Current database type
@@ -744,8 +744,6 @@
 			return !$this->hasError();
 		}
 
-
-
 		/**
 		 * Returns auto increment field value from
 		 * insert like operation if any, zero otherwise
Index: kernel/db/db_load_balancer.php
===================================================================
--- kernel/db/db_load_balancer.php	(revision 15906)
+++ kernel/db/db_load_balancer.php	(working copy)
@@ -14,7 +14,7 @@
 
 defined('FULL_PATH') or die('restricted access!');
 
-class kDBLoadBalancer extends kBase {
+class kDBLoadBalancer extends kBase implements IDBConnection {
 
 	/**
 	 * Current database type
@@ -599,6 +599,48 @@
 	}
 
 	/**
+	 * Returns auto increment field value from
+	 * insert like operation if any, zero otherwise
+	 *
+	 * @return int
+	 * @access public
+	 */
+	public function getInsertID()
+	{
+		$conn =& $this->openConnection($this->lastUsedIndex);
+
+		return $conn->getInsertID();
+	}
+
+	/**
+	 * Returns row count affected by last query
+	 *
+	 * @return int
+	 * @access public
+	 */
+	public function getAffectedRows()
+	{
+		$conn =& $this->openConnection($this->lastUsedIndex);
+
+		return $conn->getAffectedRows();
+	}
+
+	/**
+	 * Returns LIMIT sql clause part for specific db
+	 *
+	 * @param int $offset
+	 * @param int $rows
+	 * @return string
+	 * @access public
+	 */
+	public function getLimitClause($offset, $rows)
+	{
+		$conn =& $this->openConnection($this->lastUsedIndex);
+
+		return $conn->getLimitClause($offset, $rows);
+	}
+
+	/**
 	 * If it's a string, adds quotes and backslashes (only work since PHP 4.3.0)
 	 * Otherwise returns as-is
 	 *
@@ -628,6 +670,46 @@
 	}
 
 	/**
+	 * Escapes strings (only work since PHP 4.3.0)
+	 *
+	 * @param mixed $string
+	 * @return string
+	 * @access public
+	 */
+	public function escape($string)
+	{
+		$conn =& $this->openConnection($this->lastUsedIndex);
+
+		return $conn->escape($string);
+	}
+
+	/**
+	 * Returns last error code occurred
+	 *
+	 * @return int
+	 * @access public
+	 */
+	public function getErrorCode()
+	{
+		$conn =& $this->openConnection($this->lastUsedIndex);
+
+		return $conn->getErrorCode();
+	}
+
+	/**
+	 * Returns last error message
+	 *
+	 * @return string
+	 * @access public
+	 */
+	public function getErrorMsg()
+	{
+		$conn =& $this->openConnection($this->lastUsedIndex);
+
+		return $conn->getErrorMsg();
+	}
+
+	/**
 	 * Performs insert of given data (useful with small number of queries)
 	 * or stores it to perform multiple insert later (useful with large number of queries)
 	 *
@@ -662,6 +744,48 @@
 	}
 
 	/**
+	 * Allows to detect table's presence in database
+	 *
+	 * @param string $table_name
+	 * @param bool $force
+	 * @return bool
+	 * @access public
+	 */
+	public function TableFound($table_name, $force = false)
+	{
+		$conn =& $this->openConnection($this->lastUsedIndex);
+
+		return $conn->TableFound($table_name, $force);
+	}
+
+	/**
+	 * Returns query processing statistics
+	 *
+	 * @return Array
+	 * @access public
+	 */
+	public function getQueryStatistics()
+	{
+		$conn =& $this->openConnection($this->lastUsedIndex);
+
+		return $conn->getQueryStatistics();
+	}
+
+	/**
+	 * Get status information from SHOW STATUS in an associative array
+	 *
+	 * @param string $which
+	 * @return Array
+	 * @access public
+	 */
+	public function getStatus($which = '%')
+	{
+		$conn =& $this->openConnection($this->lastUsedIndex);
+
+		return $conn->getStatus($which);
+	}
+
+	/**
 	 * When undefined method is called, then send it directly to last used slave server connection
 	 *
 	 * @param string $name
@@ -705,4 +829,17 @@
 
 		return $conn;
     }
+
+	/**
+	 * Get slave replication lag. It will only work if the DB user has the PROCESS privilege.
+	 *
+	 * @return int
+	 * @access public
+	 */
+	public function getSlaveLag()
+	{
+		$conn =& $this->openConnection($this->lastUsedIndex);
+
+		return $conn->getSlaveLag();
+	}
 }
Index: kernel/db/i_db_connection.php
===================================================================
--- kernel/db/i_db_connection.php	(revision 0)
+++ kernel/db/i_db_connection.php	(revision 0)
@@ -0,0 +1,37 @@
+<?php
+/**
+* @version	$Id: db_connection.php 15904 2013-07-17 18:52:50Z erik $
+* @package	In-Portal
+* @copyright	Copyright (C) 1997 - 2013 Intechnic. All rights reserved.
+* @license      GNU/GPL
+* In-Portal is Open Source software.
+* This means that this software may have been modified pursuant
+* the GNU General Public License, and as distributed it includes
+* or is derivative of works licensed under the GNU General Public License
+* or other free or open source software licenses.
+* See http://www.in-portal.org/license for copyright notices and details.
+*/
+
+	defined('FULL_PATH') or die('restricted access!');
+
+	/**
+	 * Database connection interface
+	 *
+	 */
+	interface IDBConnection {
+		public function ChangeQuery($sql);
+		public function getInsertID();
+		public function getAffectedRows();
+		public function getLimitClause($offset, $rows);
+		public function qstr($string);
+		public function qstrArray($array, $function = 'qstr');
+		public function escape($string);
+		public function getErrorCode();
+		public function getErrorMsg();
+		public function doInsert($fields_hash, $table, $type = 'INSERT', $insert_now = true);
+		public function doUpdate($fields_hash, $table, $key_clause);
+		public function TableFound($table_name, $force = false);
+		public function getQueryStatistics();
+		public function getStatus($which = '%');
+		public function getSlaveLag();
+	}

Property changes on: kernel\db\i_db_connection.php
___________________________________________________________________
Added: svn:eol-style
   + LF

Index: kernel/startup.php
===================================================================
--- kernel/startup.php	(revision 15906)
+++ kernel/startup.php	(working copy)
@@ -175,6 +175,7 @@
 			KERNEL_PATH . '/application.php',
 			FULL_PATH . APPLICATION_PATH,
 			KERNEL_PATH . "/kbase.php",
+			KERNEL_PATH . '/db/i_db_connection.php',
 			KERNEL_PATH . '/db/db_connection.php',
 			KERNEL_PATH . '/db/db_load_balancer.php',
 			KERNEL_PATH . '/utility/event.php',