Update 'src/ORM/DBInstance.php'

src/ORM/DBInstance.php

@@ -5,9 +5,13 @@ namespace ORM;
 class DBInstance {
 
     private static function addPrefix($sql, $instance = 'default'){
-        $con = Connections::getConnection($instance);
-      	$sql =  preg_replace('/{(.*)}/', "$con->prefix$1", $sql);
-      	$sql =  preg_replace( "/\r|\n/", "", $sql );
+      	//Where is preg_replace when we need it D`:
+      	$sql = str_replace("\n", "", $sql);
+		while(strpos($sql, "  ") > -1){
+    		$sql = str_replace("  ", " ", $sql);
+		}
+		$sql = str_replace("{", "mdl_", $sql);
+		$sql = str_replace("}", "", $sql);        
         return  $sql;
     }