class.arFieldCache.php

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<?php
require_once(dirname(__FILE__) . '/../Fields/class.arFieldList.php');

class arFieldCache {

        protected static $cache = array();


        public static function isCached(ActiveRecord $ar) {
                return in_array(get_class($ar), array_keys(self::$cache));
        }


        public static function store(ActiveRecord $ar) {
                self::$cache[get_class($ar)] = arFieldList::getInstance($ar);
        }


        public static function storeFromStorage($storage_class_name, arStorageInterface $foreign_model) {
                self::$cache[$storage_class_name] = arFieldList::getInstanceFromStorage($foreign_model);
        }


        public static function get(ActiveRecord $ar) {
                if (!self::isCached($ar)) {
                        self::store($ar);
                }

                return self::$cache[get_class($ar)];
        }


        public static function purge(ActiveRecord $ar) {
                unset(self::$cache[get_class($ar)]);
        }


        public static function getPrimaryFieldName(ActiveRecord $ar) {
                return self::get($ar)->getPrimaryFieldName();
        }


        public static function getPrimaryFieldType(ActiveRecord $ar) {
                return self::get($ar)->getPrimaryFieldType();
        }
}

?>