Creating a shopping cart price rule in Magento automatically - php

Question

I'd like to create a shopping cart price rule that gives a user 10% off their order when and if they complete a process on my Magento site.
There's a method here that inserts the rule directly to the database. That's a bit invasive for my tastes.
How would I go about this using Magento methods?

Answer 1

As a general principle, you should be able to do anything that the Magento system itself does without writing a single line of SQL. Almost all the Magento data structures use Magento Model classes.
Run the following code somewhere to see what a salesrule/rule model looks like. This assumes you've created a single Shopping Cart Price Rule in the admin with an ID of 1
$coupon = Mage::getModel('salesrule/rule')->load(1);
var_dump($coupon->getData());
Using the dumped data as a guide, we can programatically create a model using the following
$coupon = Mage::getModel('salesrule/rule');
$coupon->setName('test coupon')
->setDescription('this is a description')
->setFromDate('2010-05-09')
->setCouponCode('CODENAME')
->setUsesPerCoupon(1)
->setUsesPerCustomer(1)
->setCustomerGroupIds(array(1)) //an array of customer grou pids
->setIsActive(1)
//serialized conditions. the following examples are empty
->setConditionsSerialized('a:6:{s:4:"type";s:32:"salesrule/rule_condition_combine";s:9:"attribute";N;s:8:"operator";N;s:5:"value";s:1:"1";s:18:"is_value_processed";N;s:10:"aggregator";s:3:"all";}')
->setActionsSerialized('a:6:{s:4:"type";s:40:"salesrule/rule_condition_product_combine";s:9:"attribute";N;s:8:"operator";N;s:5:"value";s:1:"1";s:18:"is_value_processed";N;s:10:"aggregator";s:3:"all";}')
->setStopRulesProcessing(0)
->setIsAdvanced(1)
->setProductIds('')
->setSortOrder(0)
->setSimpleAction('by_percent')
->setDiscountAmount(10)
->setDiscountQty(null)
->setDiscountStep('0')
->setSimpleFreeShipping('0')
->setApplyToShipping('0')
->setIsRss(0)
->setWebsiteIds(array(1));
$coupon->save();
For anyone that's curious, the above is generated code, using the technique discussed here

Answer 2

Have a look at my code.It will add Action condition.
$coupon_rule = Mage::getModel('salesrule/rule');
$coupon_rule->setName($c_data[1])
->setDescription($c_data[2])
->setFromDate($fromDate)
->setToDate($toDate)
->setUsesPerCustomer(0)
->setCustomerGroupIds(array(0,1,2,3)) //an array of customer grou pids
->setIsActive(1)
->setCouponType(2)
->setCouponCode($c_data[0])
->setUsesPerCoupon(1)
//serialized conditions. the following examples are empty
->setConditionsSerialized('')
->setActionsSerialized('')
->setStopRulesProcessing(0)
->setIsAdvanced(1)
->setProductIds('')
->setSortOrder(0)
->setSimpleAction('by_percent')
->setDiscountAmount($c_data[5])
->setDiscountQty(1)
->setDiscountStep('0')
->setSimpleFreeShipping('0')
->setApplyToShipping('1')
->setIsRss(1)
->setWebsiteIds(explode(',',$c_data[6]));
$sku =$c_data[7]; // Put your product SKU here
$skuCond = Mage::getModel('salesrule/rule_condition_product')
->setType('salesrule/rule_condition_product')
->setAttribute('sku')
->setOperator('==')
->setValue($sku);
$coupon_rule->getActions()->addCondition($skuCond);
$coupon_rule->save();
echo "New Coupon was added and its ID is ".$coupon_rule->getId().'<br/>';<br/>
If you want to add Condition for shopping cart price rule then follow this example.
$sku =$c_data[7]; // Put your product SKU here
$found = Mage::getModel('salesrule/rule_condition_product_found')
->setType('salesrule/rule_condition_product_found')
->setValue(1) // 1 == FOUND
->setAggregator('all'); // match ALL conditions
$coupon_rule->getConditions()->addCondition($found);
$skuCond = Mage::getModel('salesrule/rule_condition_product')
->setType('salesrule/rule_condition_product')
->setAttribute('sku')
->setOperator('==')
->setValue($sku);
$found->addCondition($skuCond);
$coupon_rule->save();