更新时间:2023-11-30 10:18:52
Mage :: getModel()将始终为给定模型返回一个新的Object:
Mage::getModel() will always return a new Object for the given model:
/**
* Retrieve model object
*
* @link Mage_Core_Model_Config::getModelInstance
* @param string $modelClass
* @param array|object $arguments
* @return Mage_Core_Model_Abstract|false
*/
public static function getModel($modelClass = '', $arguments = array())
{
return self::getConfig()->getModelInstance($modelClass, $arguments);
}
Mage :: getSingleton()将检查给定模型的Object是否已经存在,如果存在,则返回该对象.如果不存在,它将创建给定模型的新对象,并将其存在的注册表中.下次调用不会返回新对象,而是返回现有对象:
Mage::getSingleton() will check whether the Object of the given model already exists and return that if it does. If it doesn't exist, it will create a new object of the given model and put in registry that it already exists. Next call will not return a new object but the existing one:
/**
* Retrieve model object singleton
*
* @param string $modelClass
* @param array $arguments
* @return Mage_Core_Model_Abstract
*/
public static function getSingleton($modelClass='', array $arguments=array())
{
$registryKey = '_singleton/'.$modelClass;
if (!self::registry($registryKey)) {
self::register($registryKey, self::getModel($modelClass, $arguments));
}
return self::registry($registryKey);
}
由于每种产品都是唯一的,因此您总是需要一个全新的Product对象/模型...
In your case you always want a completely new Product object/model since every product is unique...