Magento catalog price rule disappears at night

Question

I have developed the online store on magento platform. Everything works fine except the Catalog price rule for sale. I have created the simple rule that applies 15% discount

Answer 1

I used a shell script instead of the (huge) AOE page @Lakshin Karunaratne suggested.

require_once 'abstract.php';

class X043_Shell_PriceRuleSetter extends Mage_Shell_Abstract
{
    public function run()
    {
        // stuff and thingies
        umask(0);
        Mage::app()->setCurrentStore(Mage_Core_Model_App::ADMIN_STORE_ID);
        setlocale(LC_ALL, 'en_US.UTF-8'); 

        try {
            Mage::getModel('catalogrule/rule')->applyAll();
            Mage::getModel('catalogrule/flag')->loadSelf()
                ->setState(0)
                ->save();
        } catch (Mage_Core_Exception $e) {
            Mage::logException($e);
        } catch (Exception $e) {
            Mage::logException($e);
        }

        return $this;
    }
}

$shell = new X043_Shell_PriceRuleSetter();
$shell->run();