I can successfully display my customer attribute with the following code. Here is the collection setup:
$entityType = 'customer';
$attributeCode = 'myfoo';
$attribute = Mage::getModel('eav/entity_attribute')->loadByCode($entityType, $attributeCode);
$resource = Mage::getSingleton('core/resource');
$ceTable = $resource->getTableName($entityType . '_entity_' . $attribute->getBackendType());
$collection = Mage::getResourceModel($this->_getCollectionClass());
$collection->getSelect()
->join(
array('sfo' => 'sales_flat_order'),
'main_table.order_id = sfo.entity_id',
array('customer_email'))
//join I added to get the boolean customer attribute value
->joinLeft(
array('ce2' => $ceTable),
'ce2.entity_id = sfo.customer_id AND ce2.attribute_id = ' . $attribute->getId(),
array($attributeCode => 'if(ce2.value, "Yes", "No")'));And here's the column display:
$this->addColumn('myfoo', array(
'header' => Mage::helper('sales')->__('My Foo'),
'index' => 'myfoo',
'type' => 'text'
));But how can I enable filtering for that column? The user should be able to type a yes or a no into the text input at the top of the column and filter records that have that value. I've tried to use filter_index and filter_condition_callback but can't get it to work.
