How to get product category data from observer

Question

I am using the following to get the complete product data from the observer:

$product = $observer->getProduct()->getData();

But I could not notice any information about the category of the product.

How can I get the data about the product category, such as category id from the observer?

Answer 1

You can use this in your observer:

public function yourMethod(Varien_Event_Observer $observer)
{
    $categoryId = '';
    if ($category = Mage::registry('current_category')) {
        $categoryId = $category->getId();
    }
}

Edit:

Okay first of all why the if statement is needed? Second I tried the code updated and previous and still nothing. When I keep the if statement it returns null and without the if statement it gives the error: Call to a member function getId() on null.

The if-statement is required to check if you view a product within a category. Products can also be viewed without category path ... if $categoryId returns null you are not in a category. Please check URL for the viewed product.

Answer 2

Try this:

$product = $observer->getProduct();
$catIds = $product->getCategoryIds();
//var_dump($catIds);