how customer_logged_in / out works?

Question

I can't figure out how customer_logged_in and customer_logged_out work

<customer_logged_out>
...
</customer_logged_out>

where are they defined, how are they called?

---

EDIT

 <events>
    <controller_action_layout_load_before>
        <observers>
            <customer_is_logged_in_observer>
                <class>customer/observer</class>
                <method>beforeLoadLayout</method>
            </customer_is_logged_in_observer>
        </observers>
    </controller_action_layout_load_before>

I found out how this is triggered but i can't find the controller_action_layout_load_before event dispatcher

I have searched the project as a text but it doesn't show up in any file. Please shed some light on this.

thanks

Answer 1

Hi @static how are you?,

The idea it's very simple. Using You have the possibility to show/hide information for customer logged or not. That handles are executed in a observer, so for example in top menu to display log in or my account links are using that handle.

Let me know if you need more technical information. I glad to help you.

Best, ALejandro.

Answer 2

following events are used for customer login and customer logout

for customer login

customer_login event observer will be called. this function will be called the moment the customer logs in.you can see in the following Mage_Customer_Model_Session where the customer_login event has been called

public function setCustomerAsLoggedIn($customer)
{
    $this->setCustomer($customer);
    $this->renewSession();
    Mage::dispatchEvent('customer_login', array('customer'=>$customer));
    return $this;
}

for customer logout

customer_logout event observer will be called. this function will be called the moment the customer logs out.you can see in the following Mage_Customer_Model_Session where the customer_logout event has been called

public function logout()
{
    if ($this->isLoggedIn()) {
        Mage::dispatchEvent('customer_logout', array('customer' => $this->getCustomer()) );
        $this->_logout();
    }
    return $this;
}