/**
* Retrieve coupon types
*
* @return array
*/
public function getCouponTypes()
{
if ($this->_couponTypes === null) {
$this->_couponTypes = array(Mage_SalesRule_Model_Rule::COUPON_TYPE_NO_COUPON => Mage::helper('salesrule')->__('No Coupon'), Mage_SalesRule_Model_Rule::COUPON_TYPE_SPECIFIC => Mage::helper('salesrule')->__('Specific Coupon'));
$transport = new Varien_Object(array('coupon_types' => $this->_couponTypes, 'is_coupon_type_auto_visible' => false));
Mage::dispatchEvent('salesrule_rule_get_coupon_types', array('transport' => $transport));
$this->_couponTypes = $transport->getCouponTypes();
if ($transport->getIsCouponTypeAutoVisible()) {
$this->_couponTypes[Mage_SalesRule_Model_Rule::COUPON_TYPE_AUTO] = Mage::helper('salesrule')->__('Auto');
}
}
return $this->_couponTypes;
}
