public static function init() { if (is_null(self::$instance)) { self::$instance = new Update_logic(); } return self::$instance; }
private function __construct() { global $wpdb; // load textdomain for translations add_action('plugins_loaded', array($this, 'load_our_textdomain')); if (function_exists('currheap') && is_a($wpdb, 'safe_wpdb')) { // plugin is already configured require_once 'lib/class-alternative-heap.php'; require_once 'lib/class-update-logic.php'; $this->alt_heap = Alternative_Heap::init(); $this->update_logic = Update_Logic::init(); if (false !== currheap()) { add_action('plugins_loaded', array($this, 'make_sure_we_are_first')); } } else { // show a notice to prompt the user to configure WP Safe Updates // @TODO: offer to do this automatically add_action('admin_notices', array($this, 'not_configured_notice')); } // clear all heaps on uninstall register_uninstall_hook(__FILE__, array('Safe_Updates', 'uninstall_cleanup')); }