Here I've shown a multi-select attribute named
"brand".
>> In admin Grid.php find the method
"_prepareColumns()" add the following code:
$attribute = Mage::getModel('eav/config')->getAttribute('catalog_product', '
brand'); // attribute code here
foreach ( $attribute->getSource()->getAllOptions(true, true) as $option)
{
if($option['value'] != '')
$valArr[$option['value']] = $option['label'];
}
// above code will use to show the dropdown
$this->addColumn('
brand',
array(
'header'=> Mage::helper('catalog')->__('Brands'),
'width' => '60px',
'index' => '
brand',
'type' => 'options',
'options' => $valArr,
'renderer' => 'Mage_Adminhtml_Block_Catalog_Product_Renderer_Brands', // Will have to create the renderer.
'filter_condition_callback' => array($this, '
_filterBrandCondition')
));
Then in this page you need to define the method
"_filterBrandCondition" to filter with selected item.
protected function _filterBrandCondition($collection, $column)
{
if (!$value = $column->getFilter()->getValue()) {
return;
}
$this->getCollection()->addFieldToFilter('
brand', array('finset' => $value));
}
>> Now create the
Brands.php file in
code/local/Mage/Adminhtml/Block/Catalog/Product/Renderer directory and use the following code:
class Mage_Adminhtml_Block_Catalog_Product_Renderer_Brands extends Mage_Adminhtml_Block_Widget_Grid_Column_Renderer_Abstract
{
public function render(Varien_Object $row)
{
$brands = explode(',',$row->
getBrand());
$html = "";
if(count($brands)>0)
{
$html ="<ul>";
foreach($brands as $value)
{
$_productModel = Mage::getModel('catalog/product');
$attribute = $_productModel->getResource()->getAttribute("
brand");
if ($attribute ->usesSource()) {
$html .= "<li>".$attribute ->getSource()->getOptionText("$value")."</li>";
}
}
$html .= "</ul>";
}
return $html ;
}
}
cheer :-)
