Which of the following will get information (‘customer_referrer_id’) from a currently logged-in admin user?

Upwork «Magento» Upwork test
1

  • $collection->addAttributeToFilter(‘customer_referrer_id’, $referrer_id);
    $referrer_id = Mage::getSingleton(‘admin/session’)->getUser()->getId();

  • $collection->addAttributeToSelection(‘customer_referrer_id’, $referrer_id);
    $referrer_id = Mage::getSingleton(‘admin/session’)->getUser()->getId();

  • $collection->addAttributeToFilter(‘customer_referrer_id’, $referrer_id);
    $referrer_id = getSingleton(‘admin/session’)->getUser()->getId();

  • None of these.

stackoverflow.com/a/3916368