class.ilBuddySystem.php

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<?php
/* Copyright (c) 1998-2015 ILIAS open source, Extended GPL, see docs/LICENSE */

class ilBuddySystem
{
        protected static $instance;

        protected static $is_enabled;

        protected $settings;

        protected $user;

        protected function __construct()
        {
                global $DIC;

                $this->settings = new ilSetting('buddysystem');
                $this->user     = $DIC['ilUser'];
        }

        public static function getInstance()
        {
                if(!(self::$instance instanceof self))
                {
                        self::$instance = new self();
                }

                return self::$instance;
        }

        public function setSetting($keyword, $value)
        {
                $this->settings->set($keyword, $value);
        }

        public function getSetting($keyword, $default = false)
        {
                return $this->settings->get($keyword, $default);
        }

        public function isEnabled()
        {
                if(self::$is_enabled !== null)
                {
                        return self::$is_enabled;
                }

                if($this->user->isAnonymous())
                {
                        self::$is_enabled = false;
                        return false;
                }

                self::$is_enabled = $this->settings->get('enabled', false);
                return self::$is_enabled;
        }
}