/
Attribute.php
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/
Attribute.php
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<?php
/**
* Magento
*
* NOTICE OF LICENSE
*
* This source file is subject to the Open Software License (OSL 3.0)
* that is bundled with this package in the file LICENSE.txt.
* It is also available through the world-wide-web at this URL:
* http://opensource.org/licenses/osl-3.0.php
* If you did not receive a copy of the license and are unable to
* obtain it through the world-wide-web, please send an email
* to license@magentocommerce.com so we can send you a copy immediately.
*
* DISCLAIMER
*
* Do not edit or add to this file if you wish to upgrade Magento to newer
* versions in the future. If you wish to customize Magento for your
* needs please refer to http://www.magentocommerce.com for more information.
*
* @category Mage
* @package Mage_Catalog
* @copyright Copyright (c) 2012 Magento Inc. (http://www.magentocommerce.com)
* @license http://opensource.org/licenses/osl-3.0.php Open Software License (OSL 3.0)
*/
/**
* Catalog attribute resource model
*
* @category Mage
* @package Mage_Catalog
* @author Magento Core Team <core@magentocommerce.com>
*/
class Mage_Catalog_Model_Resource_Attribute extends Mage_Eav_Model_Resource_Entity_Attribute
{
/**
* Perform actions before object save
*
* @param Mage_Core_Model_Abstract $object
* @return Mage_Catalog_Model_Resource_Attribute
*/
protected function _beforeSave(Mage_Core_Model_Abstract $object)
{
$applyTo = $object->getApplyTo();
if (is_array($applyTo)) {
$object->setApplyTo(implode(',', $applyTo));
}
return parent::_beforeSave($object);
}
/**
* Perform actions after object save
*
* @param Mage_Core_Model_Abstract $object
* @return Mage_Catalog_Model_Resource_Attribute
*/
protected function _afterSave(Mage_Core_Model_Abstract $object)
{
$this->_clearUselessAttributeValues($object);
return parent::_afterSave($object);
}
/**
* Clear useless attribute values
*
* @param Mage_Core_Model_Abstract $object
* @return Mage_Catalog_Model_Resource_Attribute
*/
protected function _clearUselessAttributeValues(Mage_Core_Model_Abstract $object)
{
$origData = $object->getOrigData();
if ($object->isScopeGlobal()
&& isset($origData['is_global'])
&& Mage_Catalog_Model_Resource_Eav_Attribute::SCOPE_GLOBAL != $origData['is_global']
) {
$attributeStoreIds = array_keys(Mage::app()->getStores());
if (!empty($attributeStoreIds)) {
$delCondition = array(
'entity_type_id=?' => $object->getEntityTypeId(),
'attribute_id = ?' => $object->getId(),
'store_id IN(?)' => $attributeStoreIds
);
$this->_getWriteAdapter()->delete($object->getBackendTable(), $delCondition);
}
}
return $this;
}
/**
* Delete entity
*
* @param Mage_Core_Model_Abstract $object
* @return Mage_Catalog_Model_Resource_Attribute
*/
public function deleteEntity(Mage_Core_Model_Abstract $object)
{
if (!$object->getEntityAttributeId()) {
return $this;
}
$select = $this->_getReadAdapter()->select()
->from($this->getTable('eav/entity_attribute'))
->where('entity_attribute_id = ?', (int)$object->getEntityAttributeId());
$result = $this->_getReadAdapter()->fetchRow($select);
if ($result) {
$attribute = Mage::getSingleton('eav/config')
->getAttribute(Mage_Catalog_Model_Product::ENTITY, $result['attribute_id']);
if ($this->isUsedBySuperProducts($attribute, $result['attribute_set_id'])) {
Mage::throwException(Mage::helper('eav')->__("Attribute '%s' used in configurable products", $attribute->getAttributeCode()));
}
$backendTable = $attribute->getBackend()->getTable();
if ($backendTable) {
$select = $this->_getWriteAdapter()->select()
->from($attribute->getEntity()->getEntityTable(), 'entity_id')
->where('attribute_set_id = ?', $result['attribute_set_id']);
$clearCondition = array(
'entity_type_id =?' => $attribute->getEntityTypeId(),
'attribute_id =?' => $attribute->getId(),
'entity_id IN (?)' => $select
);
$this->_getWriteAdapter()->delete($backendTable, $clearCondition);
}
}
$condition = array('entity_attribute_id = ?' => $object->getEntityAttributeId());
$this->_getWriteAdapter()->delete($this->getTable('entity_attribute'), $condition);
return $this;
}
/**
* Defines is Attribute used by super products
*
* @param Mage_Core_Model_Abstract $object
* @param int $attributeSet
* @return int
*/
public function isUsedBySuperProducts(Mage_Core_Model_Abstract $object, $attributeSet = null)
{
$adapter = $this->_getReadAdapter();
$attrTable = $this->getTable('catalog/product_super_attribute');
$productTable = $this->getTable('catalog/product');
$bind = array('attribute_id' => $object->getAttributeId());
$select = clone $adapter->select();
$select->reset()
->from(array('main_table' => $attrTable), array('psa_count' => 'COUNT(product_super_attribute_id)'))
->join(array('entity' => $productTable), 'main_table.product_id = entity.entity_id')
->where('main_table.attribute_id = :attribute_id')
->group('main_table.attribute_id')
->limit(1);
if ($attributeSet !== null) {
$bind['attribute_set_id'] = $attributeSet;
$select->where('entity.attribute_set_id = :attribute_set_id');
}
$helper = Mage::getResourceHelper('core');
$query = $helper->getQueryUsingAnalyticFunction($select);
return $adapter->fetchOne($query, $bind);
}
}