/**
* Check if rule can be applied for specific address/quote/customer
*
* @param Mage_SalesRule_Model_Rule $rule
* @param Mage_Sales_Model_Quote_Address $address
* @return bool
*/
protected function _canProcessRule($rule, $address)
{
if (!$rule->hasIsValid()) {
/**
* too many times used in general
*/
if ($rule->getUsesPerCoupon() && $rule->getTimesUsed() >= $rule->getUsesPerCoupon()) {
$rule->setIsValid(false);
return false;
}
/**
* too many times used for this customer
*/
$ruleId = $rule->getId();
if ($ruleId && $rule->getUsesPerCustomer()) {
$customerId = $address->getQuote()->getCustomerId();
$ruleCustomer = Mage::getModel('salesrule/rule_customer');
$ruleCustomer->loadByCustomerRule($customerId, $ruleId);
if ($ruleCustomer->getId()) {
if ($ruleCustomer->getTimesUsed() >= $rule->getUsesPerCustomer()) {
$rule->setIsValid(false);
return false;
}
}
}
$rule->afterLoad();
/**
* quote does not meet rule's conditions
*/
if (!$rule->validate($address)) {
$rule->setIsValid(false);
return false;
}
/**
* passed all validations, remember to be valid
*/
$rule->setIsValid(true);
}
return $rule->getIsValid();
}
