* import of php connector v1.2

1 files changed, 70 insertions, 0 deletions

diff --git a/codebase/db_mssql.php b/codebase/db_mssql.php
new file mode 100644
index 0000000..e082c03
--- /dev/null
+++ b/codebase/db_mssql.php
@@ -0,0 +1,70 @@
+<?php
+/*
+	@author dhtmlx.com
+	@license GPL, see license.txt
+*/
+require_once("db_common.php");
+/*! MSSQL implementation of DataWrapper
+**/
+class MsSQLDBDataWrapper 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);
+		$res = mssql_query($sql,$this->connection);
+		if ($this->insert_operation){
+			$last = mssql_fetch_assoc($res);
+			$this->last_id = $last["dhx_id"];
+			mssql_free_result($res);
+		}
+		if ($this->start_from)
+			mssql_data_seek($res,$this->start_from);
+		return $res;
+	}
+	
+	public function get_next($res){
+		return mssql_fetch_assoc($res);
+	}
+	
+	protected 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 $sql.";SELECT @@IDENTITY AS dhx_id";
+	}		
+	
+	protected function select_query($select,$from,$where,$sort,$start,$count){
+		$sql="SELECT " ;
+		if ($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(){
+		$this->query("BEGIN TRAN");
+	}
+}
+?>
\ No newline at end of file