Sloppy code bugs

application/models/Logbook_model.php

@@ -443,7 +443,7 @@ class Logbook_model extends CI_Model {
   }
 
   function get_clublog_qsos(){
-    $this->db->where("COL_CLUBLOG_QSO_UPLOAD_STATUS", "");
+    $this->db->where("COL_CLUBLOG_QSO_UPLOAD_STATUS", null);
     $this->db->or_where("COL_CLUBLOG_QSO_UPLOAD_STATUS", "N");
 
     $query = $this->db->get($this->config->item('table_name'));