如何从用户的Magento得到客户群

Question

如你所知，在数据库中，newsletter_subscriber表已经CUSTOMER_ID列

在管理通讯用户的网格，我加列客户群这样

$this->addColumn('customer_group', array(
     'header' => Mage::helper('newsletter')->__('Customer Group'), 
     'index'  => 'customer_group' 

    )); 

因此，如何能从订户中的customer_id获取客户组？

THKS

Answer 1

修改最后几行中protected function _prepareCollection()方法

$collection->getSelect()->join(array('ce'=>'customer_entity'),'ce.entity_id=main_table.customer_id',array('ce.group_id')); 
$collection->getSelect()->join(array('cg'=>'customer_group'),'cg.customer_group_id=ce.group_id',array('cg.customer_group_code')); 
$this->setCollection($collection); 

然后添加字段这样

$this->addColumn('customer_group_code', array(
     'header' => Mage::helper('newsletter')->__('Customer Group'), 
     'index'  => 'customer_group_code' 
    ));