Rewrite for Mssql adapter; Oracle adapter added;

Fixed empty ORDER BY; Massive comments review

Html rendering replaced with 'classic' version.
If you want previous 'document.write' version - change '$this->render_html' to 'js'.

php/Adapter/Mssql.php

@@ -1,39 +1,41 @@
 <?php
 /**
-* Mssql adapter for jqGrid
+* Mssql adapter for jqGridPHP
 */
 
 abstract class jqGrid_Adapter_Mssql extends jqGrid
 {
 	protected $do_sort = false;
 	protected $do_limit = false;
-
 	protected $where_empty = '1=1';
 
 	protected function buildFields($cols)
 	{
-		return parent::buildFields($cols) . ', ROW_NUMBER() OVER (' . $this->buildOrderBy($this->sidx, $this->sord) . ') AS _row_number';
-	}
-
-	protected function buildOrderBy($sidx, $sord)
-	{
-		if(!$sidx) $sidx = $this->primary_key;
+		$fields = parent::buildFields($cols);
+		
+		if($this->limit > -1)
+		{
+			$fields .= ', ROW_NUMBER() OVER (' . $this->buildOrderBy($this->sidx, $this->sord) . ') AS _rownum';
+		}
 
-		return parent::buildOrderBy($sidx, $sord);
+		return $fields;
 	}
 
 	protected function buildQueryRows($q)
 	{
 		$query = parent::buildQueryRows($q);
 
-		$offset_min = max($this->page * $this->limit - $this->limit, 0) + 1;
-		$offset_max = $offset_min + $this->limit;
-
-		$query = "
-			SELECT *
-			FROM ($query) a
-			WHERE _row_number BETWEEN $offset_min AND $offset_max
-		";
+		if($this->limit > -1)
+		{
+			$offset_min = max($this->page * $this->limit - $this->limit, 0) + 1;
+			$offset_max = $offset_min + $this->limit;
+
+			$query = "
+				SELECT *
+				FROM ($query) a
+				WHERE _rownum BETWEEN $offset_min AND $offset_max
+			";
+		}
 
 		return $query;
 	}

php/Adapter/Oracle.php

@@ -0,0 +1,41 @@
+<?php
+/**
+* Oracle adapter for jqGridPHP
+*/
+
+abstract class jqGrid_Adapter_Oracle extends jqGrid
+{
+	protected $do_limit = false;
+	protected $where_empty = '1=1';
+
+	protected function buildFields($cols)
+	{
+		$fields = parent::buildFields($cols);
+
+		if($this->limit > -1)
+		{
+			$fields .= ', rownum AS _rownum';
+		}
+
+		return $fields;
+	}
+
+	protected function buildQueryRows($q)
+	{
+		$query = parent::buildQueryRows($q);
+
+		if($this->limit > -1)
+		{
+			$offset_min = max($this->page * $this->limit - $this->limit, 0) + 1;
+			$offset_max = $offset_min + $this->limit;
+
+			$query = "
+				SELECT *
+				FROM ($query) a
+				WHERE _rownum BETWEEN $offset_min AND $offset_max
+			";
+		}
+
+		return $query;
+	}
+}