Proyectos de Subversion Moodle

<?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;

    }

}