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();
    }
}