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<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
/**
* Defines backup_subplugin class
* @package core_backup
* @subpackage moodle2
* @category backup
* @copyright 2010 onwards Eloy Lafuente (stronk7) {@link http://stronk7.com}
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
defined('MOODLE_INTERNAL') || die();
/**
* Class implementing the subplugins support for moodle2 backups
*
* TODO: Finish phpdocs
* TODO: Make this subclass of backup_plugin
*/
abstract class backup_subplugin {
protected $subplugintype;
protected $subpluginname;
protected $connectionpoint;
protected $optigroup; // Optigroup, parent of all optigroup elements
protected $step;
protected $task;
public function __construct($subplugintype, $subpluginname, $optigroup, $step) {
$this->subplugintype = $subplugintype;
$this->subpluginname = $subpluginname;
$this->optigroup = $optigroup;
$this->connectionpoint = '';
$this->step = $step;
$this->task = $step->get_task();
}
public function define_subplugin_structure($connectionpoint) {
$this->connectionpoint = $connectionpoint;
$methodname = 'define_' . $connectionpoint . '_subplugin_structure';
if (method_exists($this, $methodname)) {
$this->$methodname();
}
}
// Protected API starts here
// backup_step/structure_step/task wrappers
/**
* Returns the value of one (task/plan) setting
*/
protected function get_setting_value($name) {
if (is_null($this->task)) {
throw new backup_step_exception('not_specified_backup_task');
}
return $this->task->get_setting_value($name);
}
// end of backup_step/structure_step/task wrappers
/**
* Factory method that will return one backup_subplugin_element (backup_optigroup_element)
* with its name automatically calculated, based one the subplugin being handled (type, name)
*/
protected function get_subplugin_element($final_elements = null, $conditionparam = null, $conditionvalue = null) {
// Something exclusive for this backup_subplugin_element (backup_optigroup_element)
// because it hasn't XML representation
$name = 'optigroup_' . $this->subplugintype . '_' . $this->subpluginname . '_' . $this->connectionpoint;
$optigroup_element = new backup_subplugin_element($name, $final_elements, $conditionparam, $conditionvalue);
$this->optigroup->add_child($optigroup_element); // Add optigroup_element to stay connected since beginning
return $optigroup_element;
}
/**
* Simple helper function that suggests one name for the main nested element in subplugins
* It's not mandatory to use it but recommended ;-)
*/
protected function get_recommended_name() {
return 'subplugin_' . $this->subplugintype . '_' . $this->subpluginname . '_' . $this->connectionpoint;
}
}