private function assign_related_properties()
 {
     $listing_type_id = wpl_request::getVar('listing_type_id');
     $select_id = wpl_request::getVar('select_id');
     $j = wpl_property::update_properties('listing', $listing_type_id, $select_id);
     $this->remove_listing_type($listing_type_id, 1);
 }
 private function assign_related_properties()
 {
     $property_type_id = wpl_request::getVar('property_type_id');
     $select_id = wpl_request::getVar('select_id');
     $j = wpl_property::update_properties('property_type', $property_type_id, $select_id);
     self::remove_property_type($property_type_id, 1);
 }