How to get the customer attribute value?

Question

What I want

• add customer attribute
• show the new attribute in front(dashboard) page

Problem

I have created customer attribute with this code below:

<?php
define('MAGENTO', realpath(dirname(__FILE__)));

require_once MAGENTO . '/app/Mage.php';

Mage::app();

$installer = new Mage_Customer_Model_Entity_Setup('core_setup');

$installer->startSetup();

$vCustomerEntityType = $installer->getEntityTypeId('customer');
$vCustAttributeSetId = $installer->getDefaultAttributeSetId($vCustomerEntityType);
$vCustAttributeGroupId = $installer->getDefaultAttributeGroupId($vCustomerEntityType, $vCustAttributeSetId);

$installer->addAttribute('customer', 'manager', array(
        'label' => 'Account Manager',
        'input' => 'text',
        'type'  => 'varchar',
        'forms' => array('customer_account_edit','customer_account_create','adminhtml_customer','checkout_register'),
            'visible' => true,
            'global' => true,
            'visible_on_front' => 1,
        'required' => false,
        'default_value' => 'default',
        'user_defined' => true,
));

$installer->addAttributeToGroup($vCustomerEntityType, $vCustAttributeSetId, $vCustAttributeGroupId, 'manager', 0);

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


echo "DONE";
exit;

And then, this part was normally works. I can find new form in backend and I can update the form with new data. That was good so far but I couldn't get the data in front page section.

When I have searched this problem, the below code seems to normally working but it wasn't work for me.

I put below code in /app/design/frontend/<Theme>/default/template/customer/account/dashboard.phtml.

$attr = $this->getCustomer()->getAttribute('manager')->getData($customer);
// not working

$customer = Mage::getSingleton('customer/session')->getCustomer();
$attr = $customer->getAttribute('manager')->getData($customer);
// not working

$_customerModel = Mage::getModel('customer/customer');
$_customer = $customerModel->load($this->getCustomer()->getId());
$attr = $_customer->getAttribute('manager')->getData($_customer);
// Yeah, still not working

$attr = $this->getCustomer()->getAttribute('manager')->getData('manager');
// not working but getData('firstname') is working

I think the custom attribute was not fully loaded when the customer loaded. Also it seems to be problem with new version of magento. I couldn't find same problem anywhere.

Can I get the data by force such as connecting to database directly or am I missing something in this code?