1 files changed, 102 insertions, 0 deletions
diff --git a/codebase/connector/db_sqlsrv.php b/codebase/connector/db_sqlsrv.php
new file mode 100644
index 0000000..1b27020
--- /dev/null
+++ b/codebase/connector/db_sqlsrv.php
@@ -0,0 +1,102 @@
+<?php
+/*
+This software is allowed to use under GPL or you need to obtain Commercial or Enterise License
+to use it in non-GPL project. Please contact sales@dhtmlx.com for details
+*/
+?><?php
+/*
+	@author dhtmlx.com
+	@license GPL, see license.txt
+*/
+require_once("db_common.php");
+/*! MSSQL implementation of DataWrapper
+**/
+class SQLSrvDBDataWrapper extends DBDataWrapper{
+	private $last_id=""; //!< ID of previously inserted record
+	private $insert_operation=false; //!< flag of insert operation
+	private $start_from=false; //!< index of start position
+	
+	public function query($sql){
+		LogMaster::log($sql);
+		if ($this->start_from)
+			$res = sqlsrv_query($this->connection,$sql, array(), array("Scrollable" => SQLSRV_CURSOR_STATIC));
+		else
+			$res = sqlsrv_query($this->connection,$sql);
+		
+		if ($res === false){
+			$errors = sqlsrv_errors();
+			$message = Array();
+			foreach($errors as $error)
+				$message[]=$error["SQLSTATE"].$error["code"].$error["message"];
+			throw new Exception("SQLSrv operation failed\n".implode("\n\n", $message));
+		}
+		
+		if ($this->insert_operation){
+			sqlsrv_next_result($res);
+			$last = sqlsrv_fetch_array($res);
+			$this->last_id = $last["dhx_id"];
+			sqlsrv_free_stmt($res);
+		}
+		if ($this->start_from)
+			$data = sqlsrv_fetch($res, SQLSRV_SCROLL_ABSOLUTE, $this->start_from-1);
+		return $res;
+	}
+	
+	public function get_next($res){
+		$data = sqlsrv_fetch_array($res, SQLSRV_FETCH_ASSOC);
+		if ($data)
+			foreach ($data as $key => $value)
+				if (is_a($value, "DateTime"))
+					$data[$key] = $value->format("Y-m-d H:i");
+		return $data;
+	}
+	
+	public function get_new_id(){
+		/*
+		MSSQL doesn't support identity or auto-increment fields
+		Insert SQL returns new ID value, which stored in last_id field
+		*/
+		return $this->last_id;
+	}
+	
+	protected function insert_query($data,$request){
+		$sql = parent::insert_query($data,$request);
+		$this->insert_operation=true;
+		return $sql.";SELECT SCOPE_IDENTITY() as dhx_id";
+	}		
+	
+	protected function select_query($select,$from,$where,$sort,$start,$count){
+		if (!$from)
+			return $select;
+			
+		$sql="SELECT " ;
+		if ($count)
+			$sql.=" TOP ".($count+$start);
+		$sql.=" ".$select." FROM ".$from;
+		if ($where) $sql.=" WHERE ".$where;
+		if ($sort) $sql.=" ORDER BY ".$sort;
+		if ($start && $count) 
+			$this->start_from=$start;
+		else 
+			$this->start_from=false;
+		return $sql;
+	}
+
+	public function escape($data){
+		/*
+		there is no special escaping method for mssql - use common logic
+		*/
+		return str_replace("'","''",$data);
+	}
+	
+	public function begin_transaction(){
+		sqlsrv_begin_transaction($this->connection);
+	}
+	public function commit_transaction(){
+		sqlsrv_commit($this->connection);
+	}
+	public function rollback_transaction(){
+		sqlsrv_rollback($this->connection);
+	}		
+}
+?>
+\ No newline at end of file