是否可以在不加载模型的情况下更新模型? [英] Is it possible to update a model without loading it?

问题描述

我想在不实际加载整个客户模型的情况下更新客户.这是我当前的代码:

I would like to update a customer without actually loading the entire customer model. Here is my current code:

$customer = Mage::getModel('customer/customer')->load($customerId, 'entity_id');
$customer->setEmail('[e-mail]');
$customer->save();

是否可以在不首先加载模型的情况下进行更新?

Is it possible to update the model without first loading it?

推荐答案

只要定义了模型的ID，下面的代码就可以正常工作，但是它将丢失对象先前拥有的数据.

The code bellow should work fine as long as the model's ID is defined, it will however loose the previous data the object had.

$customer = Mage::getModel('customer/customer');
$customer->setEmail('[e-mail]');
$customer->save();
// will create a customer with an email set to `[e-mail]`
// everything else will either be default or null

具有水合作用的更新

$customer = Mage::getModel('customer/customer')->load($customerId, 'entity_id');
// this step is also known as `hydration` because the model is like
// a sponge in the watter, it sucks in the values
$customer->setEmail('[e-mail]');
$customer->save();
// will update a customer and only ovewrite its email to `[e-mail]`
// everything else will be as it was before the save

没有水合的更新

$customer = Mage::getModel('customer/customer');
$customer->setId($customerId);
$customer->setEmail('[e-mail]');
$customer->save();
// will replace all of the values present on the initial customer with
// an email set to `[e-mail]`and everything else set to be default or null

更新单个属性

原则是您可以通过指定entity_id，attribute_code/attribute_id和值来设置属性值.

UPDATE single attribute

The principle is the fact that you can set an attribute value by specifying the entity_id, attribute_code/attribute_id and the value.

/* still looking for a usage snippet */

/* defined in `Mage_Eav_Model_Entity_Abstract` */
protected function _setAttributeValue($object, $valueRow)
{
    $attribute = $this->getAttribute($valueRow['attribute_id']);
    if($attribute) {
        $attributeCode = $attribute->getAttributeCode();
        $object->setData($attributeCode, $valueRow['value']);
        $attribute->getBackend()->setEntityValueId($object, $valueRow['value_id']);
    }

    return $this;
}

这显然没有上述负面影响.

This obviously does not have the aforementioned negative side-effect.

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