Added db wrapper for codeigniter version 3.

Author: EgorLazarovich

codebase/db_phpci.php

@@ -44,16 +44,24 @@ public function escape_name($data){
 }
 
 class PHPCIResultSet{
+    private $is_result_done = false;
 	private $res;
 	private $start;
 	private $count;
 
 	public function __construct($res){
+        if(is_bool($res)) {
+            $this->$is_result_done = true;
+            return $this;
+        }
 		$this->res = $res;
 		$this->start = $res->current_row;
-		$this->count = $res->num_rows;
+		$this->count = $res->num_rows();
 	}
 	public function next(){
+        if($this->is_result_done)
+            return null;
+
 		if ($this->start != $this->count){
 			return $this->res->row($this->start++,'array');
 		} else {

codebase/db_phpci2.php

@@ -0,0 +1,65 @@
+<?php
+/*
+	@author dhtmlx.com
+	@license GPL, see license.txt
+*/
+require_once("db_common.php");
+
+/*! Implementation of DataWrapper for PDO
+
+if you plan to use it for Oracle - use Oracle connection type instead
+**/
+class PHPCIDBDataWrapper extends DBDataWrapper{
+	private $last_result;//!< store result or last operation
+	
+	public function query($sql){
+		LogMaster::log($sql);
+
+		$res=$this->connection->query($sql);		
+		if ($res===false) {
+			throw new Exception("CI - sql execution failed");
+		}
+
+		if (is_object($res))
+			return new PHPCIResultSet($res);
+		return new ArrayQueryWrapper(array());
+	}
+		
+	public function get_next($res){
+		$data = $res->next();
+		return $data;
+	}
+	
+	public function get_new_id(){
+		return $this->connection->insert_id();
+	}
+	
+	public function escape($str){
+		return $this->connection->escape_str($str);
+	}
+
+	public function escape_name($data){
+		return $this->connection->protect_identifiers($data);	
+	}
+}
+
+class PHPCIResultSet{
+	private $res;
+	private $start;
+	private $count;
+
+	public function __construct($res){
+		$this->res = $res;
+		$this->start = $res->current_row;
+		$this->count = $res->num_rows;
+	}
+	public function next(){
+		if ($this->start != $this->count){
+			return $this->res->row($this->start++,'array');
+		} else {
+			$this->res->free_result();
+			return null;
+		}
+	}	
+}
+?>