Price filter with fixed price in magento

Question

I am trying to filter products with price. But getting some issue with my requirement. Like in default magento price filter is working with range. When we need with fixed price filter.

1. $0.00 - $10.00
2. $100.00 - $200.00
3. $300.00 - $400.00

Above is how it comes in default magento. When i click on 2nd filter i can see url like ?price=2-10 and it is filtering products between $10 to $20.

Now in our case we have only three fixed product price in store. So we dont need range filter but instead should be with fixed price filter.

1. $10
2. $25
3. $45

and when i click on 2nd filter, url should be like ?price=25

Thanks,

Answer 1

@Hardik If you can have filter like ?price=25-25 instead of ?price=25 then it will filter products having price 25.

Answer 2

simply rewrite the model Mage/Catalog/Model/Layer/Filter/Price.php

in this apply function add this code

    public function apply(Zend_Controller_Request_Abstract $request, $filterBlock)
{

    $filter = $request->getParam($this->getRequestVar());
    if (!$filter) {
        return $this;
    }
     $select =  $this->getLayer()->getProductCollection();
                 $select->addAttributeToFilter('price', array('eq' => $filter));
  $state = $this->_createItem(
        $stateLabel, $filter
    )->setVar($this->_requestVar);
    /* @var $state Mage_Catalog_Model_Layer_Filter_Item */

    $this->getLayer()->getState()->addFilter($state);
    return $this;
}