fix $affected while querying an UPDATE

According to http://php.net/mysql_query

For SELECT, SHOW, DESCRIBE, EXPLAIN and other statements returning resultset, mysql_query() returns a resource on success, or FALSE on error.

For other type of SQL statements, INSERT, UPDATE, DELETE, DROP, etc, mysql_query() returns TRUE on success or FALSE on error.

Author: jfcherng

class.MySQL.php

@@ -172,11 +172,10 @@ public function executeSQL($query){
         if($this->result = mysql_query($query, $this->databaseLink)){
             if (gettype($this->result) === 'resource') {
                 $this->records  = @mysql_num_rows($this->result);
-                $this->affected = @mysql_affected_rows($this->databaseLink);
             } else {
                $this->records  = 0;
-               $this->affected = 0;
             }
+            $this->affected = @mysql_affected_rows($this->databaseLink);
 
             if($this->records > 0){
                 $this->arrayResults();
@@ -375,4 +374,4 @@ public function closeConnection(){
             mysql_close($this->databaseLink);
         }
     }
-}
+}