magento event observer (magento1.7) - module

Question

i am trying to implement an simple observer in my module (app/code/local/Foo/Bar).
My objective is to set the product names to '[product name] is cool' when a product is loaded in the frontend.
These are my files:
app/code/local/Foo/Bar/etc/config.xml
<?xml version="1.0" encoding="UTF-8"?>
<config>
<global>
<models>
<foo_bar>
<class>Foo_Bar_Model</class>
</foo_bar>
</models>
</global>
<frontend>
<events>
<catalog_product_load_after>
<observers>
<foo_bar>
<type>model</type>
<class>foo_bar/observer</class>
<method>catalogProductLoadAfter</method>
</foo_bar>
</observers>
</catalog_product_load_after>
</events>
</frontend>
</config>
app/code/local/Foo/Bar/Model/Observer.php
<?php
class Foo_Bar_Model_Observer{
public function catalogProductLoadAfter(Varien_Event_Observer $observer)
{
$product = $observer ->getProduct();
$product ->setName($product.getName().' '.'is cool');
}
}
?>
And i have also configured the module in app/etc/modules/Foo_Bar.xml
<?xml version="1.0" encoding="UTF-8"?>
<config>
<modules>
<Foo_Bar>
<active>true</active>
<codePool>local</codePool>
</Foo_Bar>
</modules>
</config>
But it doenst work, does anyone have any suggestion?

Answer 1

You only need to module name for the model:
<foo_bar>
<type>model</type>
<class>bar/observer</class>
<method>catalogProductLoadAfter</method>
</foo_bar>
you don't need to specify Foo_Bar
also have you an error in your PHP
$product ->setName($product.getName().' '.'is cool');
should be
$product->setName($product->getName().' '.'is cool');