那些遇到过的问题

无法在产品集合上使用type_id加载和过滤

Seb*_*ien 5 magento

我想覆盖目录/图层模型的函数prepareProductCollection($ collection).

因为,我只想展示简单的产品,所以我想做: 

 public function prepareProductCollection($collection)
    {
        $collection
           ->addAttributeToSelect(Mage::getSingleton('catalog/config')->getProductAttributes())
           ->addMinimalPrice()
           ->addFinalPrice()
           ->addTaxPercents()
           ->addUrlRewrite($this->getCurrentCategory()->getId());

        Mage::getSingleton('catalog/product_status')->addVisibleFilterToCollection($collection);
        Mage::getSingleton('catalog/product_visibility')->addVisibleInCatalogFilterToCollection($collection);

        $collection
         ->addAttributeToSelect('type_id')
         ->addAttributeToFilter('type_id','simple');
       echo $collection->getSelect()->__toString();

    }
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但是当我这样做时,我有这个错误: 

SQLSTATE[42S22]: Column not found: 1054 Unknown column 'e.type_id' in 'where clause'

Trace:
#0 /Users/Ditchou/Documents/ProjetsWeb/lolote/lib/Varien/Db/Statement/Pdo/Mysql.php(110): Zend_Db_Statement_Pdo->_execute(Array)
#1 /Users/Ditchou/Documents/ProjetsWeb/lolote/lib/Zend/Db/Statement.php(300): Varien_Db_Statement_Pdo_Mysql->_execute(Array)
#2 /Users/Ditchou/Documents/ProjetsWeb/lolote/lib/Zend/Db/Adapter/Abstract.php(479): Zend_Db_Statement->execute(Array)
#3 /Users/Ditchou/Documents/ProjetsWeb/lolote/lib/Zend/Db/Adapter/Pdo/Abstract.php(238): Zend_Db_Adapter_Abstract->query('SELECT FLOOR((R...', Array)
#4 /Users/Ditchou/Documents/ProjetsWeb/lolote/lib/Varien/Db/Adapter/Pdo/Mysql.php(419): Zend_Db_Adapter_Pdo_Abstract->query('SELECT FLOOR((R...', Array)
#5 /Users/Ditchou/Documents/ProjetsWeb/lolote/lib/Zend/Db/Adapter/Abstract.php(808): Varien_Db_Adapter_Pdo_Mysql->query(Object(Varien_Db_Select), Array)
#6 /Users/Ditchou/Documents/ProjetsWeb/lolote/app/code/core/Mage/Catalog/Model/Resource/Layer/Filter/Price.php(274): Zend_Db_Adapter_Abstract->fetchPairs(Object(Varien_Db_Select))
#7 /Users/Ditchou/Documents/ProjetsWeb/lolote/app/code/core/Mage/Catalog/Model/Layer/Filter/Price.php(158): Mage_Catalog_Model_Resource_Layer_Filter_Price->getCount(Object(Mage_Catalog_Model_Layer_Filter_Price), 10)
#8 /Users/Ditchou/Documents/ProjetsWeb/lolote/app/code/core/Mage/Catalog/Model/Layer/Filter/Price.php(115): Mage_Catalog_Model_Layer_Filter_Price->getRangeItemCounts(10)
#9 /Users/Ditchou/Documents/ProjetsWeb/lolote/app/code/core/Mage/Catalog/Model/Layer/Filter/Price.php(314): Mage_Catalog_Model_Layer_Filter_Price->getPriceRange()
#10 /Users/Ditchou/Documents/ProjetsWeb/lolote/app/code/core/Mage/Catalog/Model/Layer/Filter/Abstract.php(151): Mage_Catalog_Model_Layer_Filter_Price->_getItemsData()
#11 /Users/Ditchou/Documents/ProjetsWeb/lolote/app/code/core/Mage/Catalog/Model/Layer/Filter/Abstract.php(120): Mage_Catalog_Model_Layer_Filter_Abstract->_initItems()
#12 /Users/Ditchou/Documents/ProjetsWeb/lolote/app/code/core/Mage/Catalog/Model/Layer/Filter/Abstract.php(109): Mage_Catalog_Model_Layer_Filter_Abstract->getItems()
#13 /Users/Ditchou/Documents/ProjetsWeb/lolote/app/code/core/Mage/Catalog/Block/Layer/Filter/Abstract.php(132): Mage_Catalog_Model_Layer_Filter_Abstract->getItemsCount()
#14 /Users/Ditchou/Documents/ProjetsWeb/lolote/app/design/frontend/decostore/default/template/catalog/layer/view.phtml(49): Mage_Catalog_Block_Layer_Filter_Abstract->getItemsCount()
#15 /Users/Ditchou/Documents/ProjetsWeb/lolote/app/code/core/Mage/Core/Block/Template.php(241): include('/Users/Ditchou/...')
#16 /Users/Ditchou/Documents/ProjetsWeb/lolote/app/code/core/Mage/Core/Block/Template.php(272): Mage_Core_Block_Template->fetchView('frontend/decost...')
#17 /Users/Ditchou/Documents/ProjetsWeb/lolote/app/code/core/Mage/Core/Block/Template.php(286): Mage_Core_Block_Template->renderView()
#18 /Users/Ditchou/Documents/ProjetsWeb/lolote/app/code/core/Mage/Core/Block/Abstract.php(863): Mage_Core_Block_Template->_toHtml()
#19 /Users/Ditchou/Documents/ProjetsWeb/lolote/app/code/core/Mage/Core/Block/Text/List.php(43): Mage_Core_Block_Abstract->toHtml()
#20 /Users/Ditchou/Documents/ProjetsWeb/lolote/app/code/core/Mage/Core/Block/Abstract.php(863): Mage_Core_Block_Text_List->_toHtml()
#21 /Users/Ditchou/Documents/ProjetsWeb/lolote/app/code/core/Mage/Core/Block/Abstract.php(582): Mage_Core_Block_Abstract->toHtml()
#22 /Users/Ditchou/Documents/ProjetsWeb/lolote/app/code/core/Mage/Core/Block/Abstract.php(526): Mage_Core_Block_Abstract->_getChildHtml('left', true)
#23 /Users/Ditchou/Documents/ProjetsWeb/lolote/app/design/frontend/decostore/default/template/page/2columns-left.phtml(19): Mage_Core_Block_Abstract->getChildHtml('left')
#24 /Users/Ditchou/Documents/ProjetsWeb/lolote/app/code/core/Mage/Core/Block/Template.php(241): include('/Users/Ditchou/...')
#25 /Users/Ditchou/Documents/ProjetsWeb/lolote/app/code/core/Mage/Core/Block/Template.php(272): Mage_Core_Block_Template->fetchView('frontend/decost...')
#26 /Users/Ditchou/Documents/ProjetsWeb/lolote/app/code/core/Mage/Core/Block/Template.php(286): Mage_Core_Block_Template->renderView()
#27 /Users/Ditchou/Documents/ProjetsWeb/lolote/app/code/core/Mage/Core/Block/Abstract.php(863): Mage_Core_Block_Template->_toHtml()
#28 /Users/Ditchou/Documents/ProjetsWeb/lolote/app/code/core/Mage/Core/Model/Layout.php(555): Mage_Core_Block_Abstract->toHtml()
#29 /Users/Ditchou/Documents/ProjetsWeb/lolote/app/code/core/Mage/Core/Controller/Varien/Action.php(390): Mage_Core_Model_Layout->getOutput()
#30 /Users/Ditchou/Documents/ProjetsWeb/lolote/app/code/core/Mage/Catalog/controllers/CategoryController.php(159): Mage_Core_Controller_Varien_Action->renderLayout()
#31 /Users/Ditchou/Documents/ProjetsWeb/lolote/app/code/core/Mage/Core/Controller/Varien/Action.php(419): Mage_Catalog_CategoryController->viewAction()
#32 /Users/Ditchou/Documents/ProjetsWeb/lolote/app/code/core/Mage/Core/Controller/Varien/Router/Standard.php(250): Mage_Core_Controller_Varien_Action->dispatch('view')
#33 /Users/Ditchou/Documents/ProjetsWeb/lolote/app/code/core/Mage/Core/Controller/Varien/Front.php(176): Mage_Core_Controller_Varien_Router_Standard->match(Object(Mage_Core_Controller_Request_Http))
#34 /Users/Ditchou/Documents/ProjetsWeb/lolote/app/code/core/Mage/Core/Model/App.php(354): Mage_Core_Controller_Varien_Front->dispatch()
#35 /Users/Ditchou/Documents/ProjetsWeb/lolote/app/Mage.php(683): Mage_Core_Model_App->run(Array)
#36 /Users/Ditchou/Documents/ProjetsWeb/lolote/index.php(87): Mage::run('', 'store')
#37 {main}
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错误似乎发生在这里:#6 /Users/Ditchou/Documents/ProjetsWeb/lolote/app/code/core/Mage/Catalog/Model/Resource/Layer/Filter/Price.php(274):Zend_Db_Adapter_Abstract-> fetchPairs(对象(Varien_Db_Select))

我不明白,因为我只是这样做 

$collectionSimple = Mage::getResourceModel('catalog/product_collection')
     ->addAttributeToFilter('type_id', array('eq' => 'simple'));
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sql请求的回显给了我: 

SELECT `e`.*, `cat_index`.`position` AS `cat_index_position`, `price_index`.`price`, `price_index`.`tax_class_id`, `price_index`.`final_price`, IF(price_index.tier_price IS NOT NULL, LEAST(price_index.min_price, price_index.tier_price), price_index.min_price) AS `minimal_price`, `price_index`.`min_price`, `price_index`.`max_price`, `price_index`.`tier_price` FROM `catalog_product_entity` AS `e` INNER JOIN `catalog_category_product_index` AS `cat_index` ON cat_index.product_id=e.entity_id AND cat_index.store_id=1 AND cat_index.visibility IN(2, 4) AND cat_index.category_id='3' INNER JOIN `catalog_product_index_price` AS `price_index` ON price_index.entity_id = e.entity_id AND price_index.website_id = '1' AND price_index.customer_group_id = 0 WHERE (`e`.`type_id` = 'simple')
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有用.

为什么图层模型的集合不同？

Ala*_*orm 8

你确定这是你得到的错误吗？在Magento 1.7.x中,当我用prepareProductCollection上面提供的方法体替换方法体时,我收到此错误

SQLSTATE[42S22]: Column not found: 1054 Unknown column 'e.min_price' in 'where clause'
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那是因为我prepareProductCollection没有设置与原版相同的属性.对于初学者,请确保你的.如果您使用基于配置的重写执行此操作,请调用

parent::prepareProductCollection($collection);
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在你的方法的开头.如果您正在使用local或community代码池覆盖,则需要复制/粘贴core文件中的代码.在1.7.1中,这将是这样的

    $collection
        ->addAttributeToSelect(Mage::getSingleton('catalog/config')->getProductAttributes())
        ->addMinimalPrice()
        ->addFinalPrice()
        ->addTaxPercents()
        ->addUrlRewrite($this->getCurrentCategory()->getId());

    Mage::getSingleton('catalog/product_status')->addVisibleFilterToCollection($collection);
    Mage::getSingleton('catalog/product_visibility')->addVisibleInCatalogFilterToCollection($collection);

    $collection
        ->addAttributeToSelect('type_id')
        ->addAttributeToFilter('type_id','simple');
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如果这对您没有帮助,请跟踪您的callstack - 如果您的错误真的是1054 Unknown column 'e.type_id' in 'where clause'那么我的猜测是您有一些自定义代码运行某处将集合的过滤器复制到另一个集合.

此外,您可以使用获取集合的主SQL查询

echo $collection->getSelect()->__toString();
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这应该可以为您提供足够的调试信息.

更新:好的,根据上面的新信息,这似乎只有在有价格过滤器和/或索引处于特定状态时才会启动.

这是你的问题.看一下这个调用堆栈行

#7 app/code/core/Mage/Catalog/Model/Layer/Filter/Price.php(158):    Mage_Catalog_Model_Resource_Layer_Filter_Price->getCount(Object(Mage_Catalog_Model_Layer_Filter_Price), 10)
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如果你跳转到该getCount方法,你会看到一个电话_getSelect

#File: app/code/core/Mage/Catalog/Model/Resource/Layer/Filter/Price.php 
public function getCount($filter, $range)
{
    $select = $this->_getSelect($filter);
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如果看一下定义_getSelect,

#partial method reproduction
#File: app/code/core/Mage/Catalog/Model/Resource/Layer/Filter/Price.php
protected function _getSelect($filter)
{    
    $collection = $filter->getLayer()->getProductCollection();
    $collection->addPriceData($filter->getCustomerGroupId(), $filter->getWebsiteId());
    if (!is_null($collection->getCatalogPreparedSelect())) {
        $select = clone $collection->getCatalogPreparedSelect();
    } else {
        $select = clone $collection->getSelect();
    }
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你会看到Magento正在从集合中克隆 select,然后修改它以从索引表中进行选择

    // processing FROM part
    $priceIndexJoinPart = $fromPart[Mage_Catalog_Model_Resource_Product_Collection::INDEX_TABLE_ALIAS];
    $priceIndexJoinConditions = explode('AND', $priceIndexJoinPart['joinCondition']);
    $priceIndexJoinPart['joinType'] = Zend_Db_Select::FROM;
    $priceIndexJoinPart['joinCondition'] = null;
    $fromPart[Mage_Catalog_Model_Resource_Product_Collection::MAIN_TABLE_ALIAS] = $priceIndexJoinPart;
    unset($fromPart[Mage_Catalog_Model_Resource_Product_Collection::INDEX_TABLE_ALIAS]);
    $select->setPart(Zend_Db_Select::FROM, $fromPart);
    foreach ($fromPart as $key => $fromJoinItem) {
        $fromPart[$key]['joinCondition'] = $this->_replaceTableAlias($fromJoinItem['joinCondition']);
    }
    $select->setPart(Zend_Db_Select::FROM, $fromPart);
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由于索引表没有 type_id列,因此上述库存Magento代码与您的更改不兼容.如果我要继续这个,我会

  1. 转向基于重写的方法

  2. 创建一个重写,添加您的type_id过滤器来代替您的覆盖

  3. 在_getSelect上面的方法上创建第二次重写,检查type_id过滤器的选择,如果找到它,则将其删除

或者,您可以尝试找到一种不同的方法来重写您更接近其使用位置的集合对象.

祝好运!

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