protected function _prepareCollection()
{
$this->prepareCacheData();
$collection = Mage::helper('M2ePro/Component_Buy')->getCollection('Listing_Other');
$collection->getSelect()->group(array('account_id', 'marketplace_id'));
// Set collection to grid
$this->setCollection($collection);
return parent::_prepareCollection();
}
protected function _prepareColumns()
{
$this->addColumnAfter('marketplace', array('header' => Mage::helper('M2ePro')->__('Marketplace'), 'align' => 'left', 'type' => 'text', 'sortable' => false, 'frame_callback' => array($this, 'callbackColumnMarketplace')), 'account');
return parent::_prepareColumns();
}
