Magento - Create shopping cart price rule with a specific coupon code programmatically.

shopping_cart_sales_rule_with_coupon.php

<?php
/**
 * Create Shopping Cart Sales Rule with Specific Coupon Code Programmatically
 */
 
// All customer group ids
$customerGroupIds = Mage::getModel('customer/group')->getCollection()->getAllIds();

// SalesRule Rule model
$rule = Mage::getModel('salesrule/rule');
 
// Rule data
$rule->setName('Rule name')                                             
    ->setDescription('Rule description')
    ->setFromDate('')
    ->setCouponType(Mage_SalesRule_Model_Rule::COUPON_TYPE_SPECIFIC)
    ->setCouponCode('my-coupon-code')
    ->setUsesPerCustomer(1)
    ->setUsesPerCoupon(1)
    ->setCustomerGroupIds($customerGroupIds)
    ->setIsActive(1)
    ->setConditionsSerialized('')
    ->setActionsSerialized('')
    ->setStopRulesProcessing(0)
    ->setIsAdvanced(1)
    ->setProductIds('')
    ->setSortOrder(0)
    ->setSimpleAction(Mage_SalesRule_Model_Rule::BY_FIXED_ACTION)
    ->setDiscountAmount(10)
    ->setDiscountQty(1)
    ->setDiscountStep(0)
    ->setSimpleFreeShipping('0')
    ->setApplyToShipping('0')
    ->setIsRss(0)
    ->setWebsiteIds(array(1))
    ->setStoreLabels(array('My Rule Frontend Label'));
 
// Product found condition type
$productFoundCondition = Mage::getModel('salesrule/rule_condition_product_found')
    ->setType('salesrule/rule_condition_product_found')
    ->setValue(1)               // 0 == not found, 1 == found
    ->setAggregator('all');     // match all conditions
 
// 'Attribute set id 1' product condition
$attributeSetCondition = Mage::getModel('salesrule/rule_condition_product')
    ->setType('salesrule/rule_condition_product')
    ->setAttribute('attribute_set_id')
    ->setOperator('==')
    ->setValue(1);
    
// Bind attribute set condition to product found condition
$productFoundCondition->addCondition($attributeSetCondition);
 
// If a product with 'attribute set id 1' is found in the cart
$rule->getConditions()->addCondition($productFoundCondition);

// Only apply the rule discount to this specific product
$rule->getActions()->addCondition($attributeSetCondition);
 
// Here we go
$rule->save();