具有自定义属性的分层导航-Java 学习之路

我们有一个分层导航（screenshot），允许我们的用户按类别，价格和颜色进行过滤 . 类别和价格工作得很好，因为它们默认为Magento . 尝试按颜色（自定义属性）进行过滤时会出现问题 .

它引发了一个例外 . 我能够追踪堆栈跟踪，但我无法理解它 . 想知道是否有人可以帮我指出正确的方向 . 追踪：https://gist.github.com/4490917

我们正在使用Magento Enterprise v1.12.0.2

2 回答

app/Mage/Catalog/Model/Resource/Layer/Filter/Attribute.php 存在问题

用以下内容换掉你的课程，应该解决它的问题 .

class Mage_Catalog_Model_Resource_Layer_Filter_Attribute extends Mage_Core_Model_Resource_Db_Abstract
{
/**
 * Initialize connection and define main table name
 *
 */
protected function _construct()
{
    $this->_init('catalog/product_index_eav', 'entity_id');
}

/**
 * Apply attribute filter to product collection
 *
 * @param Mage_Catalog_Model_Layer_Filter_Attribute $filter
 * @param int $value
 * @return Mage_Catalog_Model_Resource_Layer_Filter_Attribute
 */
public function applyFilterToCollection($filter, $value)
{

    $filterSingleton = FilterSingleton::singleton();

    if (!isset($filterSingleton->return)) {

        $collection = $filter->getLayer()->getProductCollection();
        $attribute  = $filter->getAttributeModel();
        $connection = $this->_getReadAdapter();
        $tableAlias = $attribute->getAttributeCode() . '_idx';
        $conditions = array(
            "{$tableAlias}.entity_id = e.entity_id",
            $connection->quoteInto("{$tableAlias}.attribute_id = ?", $attribute->getAttributeId()),
            $connection->quoteInto("{$tableAlias}.store_id = ?", $collection->getStoreId()),
            $connection->quoteInto("{$tableAlias}.value = ?", $value)
        );

        $collection->getSelect()->join(
            array($tableAlias => $this->getMainTable()),
            join(' AND ', $conditions),
            array()
        );

        $filterSingleton->return = $this;

        return $this;

    } else {
        return $filterSingleton->return;
    }
}

/**
 * Retrieve array with products counts per attribute option
 *
 * @param Mage_Catalog_Model_Layer_Filter_Attribute $filter
 * @return array
 */
public function getCount($filter)
{
    // clone select from collection with filters
    $select = clone $filter->getLayer()->getProductCollection()->getSelect();
    // reset columns, order and limitation conditions
    $select->reset(Zend_Db_Select::COLUMNS);
    $select->reset(Zend_Db_Select::ORDER);
    $select->reset(Zend_Db_Select::LIMIT_COUNT);
    $select->reset(Zend_Db_Select::LIMIT_OFFSET);

    $connection = $this->_getReadAdapter();
    $attribute  = $filter->getAttributeModel();
    $tableAlias = sprintf('%s_idx', $attribute->getAttributeCode());
    $conditions = array(
        "{$tableAlias}.entity_id = e.entity_id",
        $connection->quoteInto("{$tableAlias}.attribute_id = ?", $attribute->getAttributeId()),
        $connection->quoteInto("{$tableAlias}.store_id = ?", $filter->getStoreId()),
    );

    $select
        ->join(
            array($tableAlias => $this->getMainTable()),
            join(' AND ', $conditions),
            array('value', 'count' => new Zend_Db_Expr("COUNT({$tableAlias}.entity_id)")))
        ->group("{$tableAlias}.value");

    return $connection->fetchPairs($select);
    }
}
class FilterSingleton {

static private $instance;

public $return = null;

    private function __construct() {

}

static public function singleton() {
     if (!isset(self::$instance)) {
        $c = __CLASS__;
        self::$instance = new $c;
    }

    return self::$instance;
}
}

http://aceph.tumblr.com/post/21851233473/magento-you-cannot-define-a-correlation-name

回复于 2024-04-20T03:32:43+08:00

您只需从布局中删除enterprisesearch块，例如下面的catalogsearch.xml：

<catalogsearch_result_index translate="label">
    ...
        <reference name="left">
            <remove name="enterprisesearch.leftnav"/>
        </reference>
        <reference name="right">
            <block type="catalogsearch/layer" name="catalogsearch.rightnav" before="-" template="catalog/layer/view.phtml"/>
        </reference>
    ...
    </catalogsearch_result_index>

发生错误是因为它们是两个块在布局中做同样的事情 . 默认情况下，企业搜索是存在的 .

回复于 2024-04-20T03:32:43+08:00

具有自定义属性的分层导航

2 回答

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