/**
  * Overrides the delete method, to include the custom models and tables.
  */
 public function delete()
 {
     $this->includeCustomTables();
     parent::delete();
 }
 /**
  * Overrides the delete method, to include the custom models and tables.
  */
 public function delete()
 {
     $this->includeCustomModel('ShippingRates');
     $this->includeCustomTables();
     parent::delete();
 }