public function get_item_value($item) {
        if ($this->structure instanceof mod_feedback_completion) {
            return $this->structure->get_item_value($item);
        }
        return null;
    }
public function get_item_value($item) {
        if ($this->structure instanceof mod_feedback_completion) {
            return $this->structure->get_item_value($item);
        }
        return null;
    }
public function get_item_value ( $ item ) { if ( $ this -> structure instanceof mod_feedback_completion ) { return $ this -> structure -> get_item_value ( $ item ) ; } return null ; }
Returns value for this element that is already stored in temporary or permanent table,
usually only available when user clicked "Previous page". Null means no value is stored.

@param stdClass $item
@return string
Returns value for this element that is already stored in temporary or permanent table usually only available when user clicked Previous page . Null means no value is stored .