I tried to get the price after a rule/rules were applied without any special price or something. What i tried to do is to avoid the special price in the price calculation, for this i use calcProductPriceRule function.

Even for all my products, I have a Catalog Rule applied, this returns me empty. Does anyone know why? or is something else that I can use for the same purpose?

This is my code

foreach($  collection as $  product) {                  //load product by id                 $  product = Mage::getModel('catalog/product')->load($  product->getId());                 $  price_rule = Mage::getModel('catalogrule/rule')->calcProductPriceRule($  product,$  product->getPrice());  .... {