private function dimension_grades_structure($elementname) {

        // create XML elements
        $subplugin = $this->get_subplugin_element(); // virtual optigroup element
        $subpluginwrapper = new backup_nested_element($this->get_recommended_name());
        $subplugingrade = new backup_nested_element($elementname, array('id'), array(
            'dimensionid', 'grade', 'peercomment', 'peercommentformat'));

        // connect XML elements into the tree
        $subplugin->add_child($subpluginwrapper);
        $subpluginwrapper->add_child($subplugingrade);

        // set source to populate the data
        $subplugingrade->set_source_sql(
            "SELECT id, dimensionid, grade, peercomment, peercommentformat
               FROM {workshop_grades}
              WHERE strategy = 'accumulative' AND assessmentid = ?",
              array(backup::VAR_PARENTID));

        return $subplugin;
    }
private function dimension_grades_structure($elementname) {

        // create XML elements
        $subplugin = $this->get_subplugin_element(); // virtual optigroup element
        $subpluginwrapper = new backup_nested_element($this->get_recommended_name());
        $subplugingrade = new backup_nested_element($elementname, array('id'), array(
            'dimensionid', 'grade', 'peercomment', 'peercommentformat'));

        // connect XML elements into the tree
        $subplugin->add_child($subpluginwrapper);
        $subpluginwrapper->add_child($subplugingrade);

        // set source to populate the data
        $subplugingrade->set_source_sql(
            "SELECT id, dimensionid, grade, peercomment, peercommentformat
               FROM {workshop_grades}
              WHERE strategy = 'accumulative' AND assessmentid = ?",
              array(backup::VAR_PARENTID));

        return $subplugin;
    }
private function dimension_grades_structure ( $ elementname ) { // create XML elements $ subplugin = $ this -> get_subplugin_element ( ) ; // virtual optigroup element $ subpluginwrapper = new backup_nested_element ( $ this -> get_recommended_name ( ) ) ; $ subplugingrade = new backup_nested_element ( $ elementname , array ( 'id' ) , array ( 'dimensionid' , 'grade' , 'peercomment' , 'peercommentformat' ) ) ; // connect XML elements into the tree $ subplugin -> add_child ( $ subpluginwrapper ) ; $ subpluginwrapper -> add_child ( $ subplugingrade ) ; // set source to populate the data $ subplugingrade -> set_source_sql ( "SELECT id, dimensionid, grade, peercomment, peercommentformat
               FROM {workshop_grades}
              WHERE strategy = 'accumulative' AND assessmentid = ?" , array ( backup :: VAR_PARENTID ) ) ; return $ subplugin ; }
Returns the structure of dimension grades

@param string first parameter of {@link backup_nested_element} constructor
Returns the structure of dimension grades