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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 classes used for plugin info.
*
* @package core
* @copyright 2011 David Mudrak <david@moodle.com>
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
namespace core\plugininfo;
use moodle_url, core_plugin_manager;
defined('MOODLE_INTERNAL') || die();
/**
* Class for question behaviours.
*/
class qbehaviour extends base {
/**
* Finds all enabled plugins, the result may include missing plugins.
* @return array|null of enabled plugins $pluginname=>$pluginname, null means unknown
*/
public static function get_enabled_plugins() {
$plugins = core_plugin_manager::instance()->get_installed_plugins('qbehaviour');
if (!$plugins) {
return array();
}
if ($disabled = get_config('question', 'disabledbehaviours')) {
$disabled = explode(',', $disabled);
} else {
$disabled = array();
}
$enabled = array();
foreach ($plugins as $plugin => $version) {
if (in_array($plugin, $disabled)) {
continue;
}
$enabled[$plugin] = $plugin;
}
return $enabled;
}
public function is_uninstall_allowed() {
global $DB;
if ($this->name === 'missing') {
// qbehaviour_missing is used by the system. It cannot be uninstalled.
return false;
}
return !$DB->record_exists('question_attempts', array('behaviour' => $this->name));
}
/**
* Pre-uninstall hook.
*
* This is intended for disabling of plugin, some DB table purging, etc.
*
* NOTE: to be called from uninstall_plugin() only.
* @private
*/
public function uninstall_cleanup() {
if ($disabledbehaviours = get_config('question', 'disabledbehaviours')) {
$disabledbehaviours = explode(',', $disabledbehaviours);
$disabledbehaviours = array_unique($disabledbehaviours);
} else {
$disabledbehaviours = array();
}
if (($key = array_search($this->name, $disabledbehaviours)) !== false) {
unset($disabledbehaviours[$key]);
set_config('disabledbehaviours', implode(',', $disabledbehaviours), 'question');
}
if ($behaviourorder = get_config('question', 'behavioursortorder')) {
$behaviourorder = explode(',', $behaviourorder);
$behaviourorder = array_unique($behaviourorder);
} else {
$behaviourorder = array();
}
if (($key = array_search($this->name, $behaviourorder)) !== false) {
unset($behaviourorder[$key]);
set_config('behavioursortorder', implode(',', $behaviourorder), 'question');
}
parent::uninstall_cleanup();
}
/**
* Return URL used for management of plugins of this type.
* @return moodle_url
*/
public static function get_manage_url() {
return new moodle_url('/admin/qbehaviours.php');
}
}