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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_theme_plugin class
*
* @package core_backup
* @subpackage moodle2
* @category backup
* @copyright 2011 onwards The Open University
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
defined('MOODLE_INTERNAL') || die();
/**
* Base class for theme backup plugins.
*
* NOTE: When you back up a course, it runs backup for ALL themes - not just
* the currently selected one.
*
* That means that if, for example, a course was once in theme A, and theme A
* had some data settings, but it is then changed to theme B, the data settings
* will still be included in the backup and restore. With the restored course,
* if you ever change it back to theme A, the settings will be ready.
*
* It also means that other themes which are not the one set up for the course,
* but might be seen by some users (eg user themes, session themes, mnet themes)
* can store data.
*
* If this behaviour is not desired for a particular theme's data, the subclass
* can call is_current_theme('myname') to check.
*/
abstract class backup_theme_plugin extends backup_plugin {
/**
* @var string Current theme for course (may not be the same as plugin).
*/
protected $coursetheme;
/**
* @param string $plugintype Plugin type (always 'theme')
* @param string $pluginname Plugin name (name of theme)
* @param backup_optigroup $optigroup Group that will contain this data
* @param backup_course_structure_step $step Backup step that this is part of
*/
public function __construct($plugintype, $pluginname, $optigroup, $step) {
parent::__construct($plugintype, $pluginname, $optigroup, $step);
$this->coursetheme = backup_plan_dbops::get_theme_from_courseid(
$this->task->get_courseid());
}
/**
* Return condition for whether this theme should be backed up (= if it
* is the same theme as the one used in this course). This condition has
* the theme used in the course. It will be compared against the name
* of the theme, by use of third parameter in get_plugin_element; in
* subclass, you should do:
* $plugin = $this->get_plugin_element(null, $this->get_theme_condition(), 'mytheme');
*/
protected function get_theme_condition() {
return array('sqlparam' => $this->coursetheme);
}
}