我最近(昨天其实)不得不在同一个网格上添加一个列.部分原因是因为实践不好,主要是因为另一个模块已经使用它自己的覆盖,我不想完全替换或覆盖该类.相反,这里是通过事件修改产品网格的干净方法.
应用程序/代码/地方/我的/模块的/ etc / config.xml中
<config>
<adminhtml>
<events>
<adminhtml_block_html_before>
<observers>
<mymodule>
<!-- Add column to catalog product grid -->
<class>mymodule/adminhtml_observer</class>
<method>onBlockHtmlBefore</method>
</mymodule>
</observers>
</adminhtml_block_html_before>
<eav_collection_abstract_load_before>
<observers>
<mymodule>
<!-- Add column to product list -->
<class>mymodule/adminhtml_observer</class>
<method>onEavLoadBefore</method>
</mymodule>
</observers>
</eav_collection_abstract_load_before>
</events>
</adminhtml>
</config>
应用程序/代码/地方/我的/模块/型号/ Adminhtml /观察员
class My_Module_Model_Adminhtml_Observer
{
public function onBlockHtmlBefore(Varien_Event_Observer $observer) {
$block = $observer->getBlock();
if (!isset($block)) return;
switch ($block->getType()) {
case 'adminhtml/catalog_product_grid':
/* @var $block Mage_Adminhtml_Block_Catalog_Product_Grid */
$block->addColumn('COLUMN_ID',array(
'header' => Mage::helper('mymodule')->__('COLUMN HEADER'),'index' => 'COLUMN_ID',));
break;
}
}
public function onEavLoadBefore(Varien_Event_Observer $observer) {
$collection = $observer->getCollection();
if (!isset($collection)) return;
if (is_a($collection,'Mage_Catalog_Model_Resource_Eav_MysqL4_Product_Collection')) {
/* @var $collection Mage_Catalog_Model_Resource_Eav_MysqL4_Product_Collection */
// Manipulate $collection here to add a COLUMN_ID column
$collection->addExpressionAttributeToSelect('COLUMN_ID','...Some sql goes here...');
}
}
}
