magento 添加customer attribute的方法

http://stackoverflow.com/questions/5961290/adding-attributes-to-customer-entity/5962237#5962237

$installer = $this;
$installer->startSetup();

$setup = new Mage_Eav_Model_Entity_Setup('core_setup');

$entityTypeId     = $setup->getEntityTypeId('customer');
$attributeSetId   = $setup->getDefaultAttributeSetId($entityTypeId);
$attributeGroupId = $setup->getDefaultAttributeGroupId($entityTypeId, $attributeSetId);

$setup->addAttribute('customer', 'your_attribute_code_here', array(
    'input'         => 'text',
//    'type'          => 'int',
    'type'          => 'varchar',
    'label'         => 'Some textual description',
    'visible'       => 1,
    'required'      => 0,
    'user_defined' => 1,
));

$setup->addAttributeToGroup(
 $entityTypeId,
 $attributeSetId,
 $attributeGroupId,
 'your_attribute_code_here',
 '999'  //sort_order
);

$oAttribute = Mage::getSingleton('eav/config')->getAttribute('customer', 'your_attribute_code_here');
$oAttribute->setData('used_in_forms', array('adminhtml_customer'));
$oAttribute->save();

$installer->endSetup();