/**
* Push trackEcommerceOrder to tracker on checkout success page
*
* @param \Magento\Framework\Event\Observer $observer
* @return \Henhed\Piwik\Observer\CheckoutSuccessObserver
*/
public function execute(\Magento\Framework\Event\Observer $observer)
{
$orderIds = $observer->getEvent()->getOrderIds();
if (!$this->_dataHelper->isTrackingEnabled() || empty($orderIds) || !is_array($orderIds)) {
return $this;
}
$collection = $this->_orderCollectionFactory->create();
$collection->addFieldToFilter('entity_id', ['in' => $orderIds]);
// Group order items by SKU since Piwik doesn't seem to handle multiple
// `addEcommerceItem' with the same SKU.
$piwikItems = [];
// Aggregate all placed orders into one since Piwik seems to only
// register one `trackEcommerceOrder' per request. (For multishipping)
$piwikOrder = [];
foreach ($collection as $order) {
/* @var $order \Magento\Sales\Model\Order */
foreach ($order->getAllVisibleItems() as $item) {
/* @var $item \Magento\Sales\Model\Order\Item */
$sku = $item->getSku();
$name = $item->getName();
$price = (double) $item->getBasePriceInclTax();
$qty = (double) $item->getQtyOrdered();
if (!isset($piwikItems[$sku])) {
$piwikItems[$sku] = [$sku, $name, $price * $qty, $qty];
} else {
// Aggregate row total instead of unit price in case there
// are different prices for the same SKU.
$piwikItems[$sku][2] += $price * $qty;
$piwikItems[$sku][3] += $qty;
}
}
$orderId = $order->getIncrementId();
$grandTotal = (double) $order->getBaseGrandTotal();
$subTotal = (double) $order->getBaseSubtotalInclTax();
$tax = (double) $order->getBaseTaxAmount();
$shipping = (double) $order->getBaseShippingInclTax();
$discount = abs((double) $order->getBaseDiscountAmount());
if (empty($piwikOrder)) {
$piwikOrder = [$orderId, $grandTotal, $subTotal, $tax, $shipping, $discount];
} else {
$piwikOrder[0] .= ', ' . $orderId;
$piwikOrder[1] += $grandTotal;
$piwikOrder[2] += $subTotal;
$piwikOrder[3] += $tax;
$piwikOrder[4] += $shipping;
$piwikOrder[5] += $discount;
}
}
// Push `addEcommerceItem'
foreach ($piwikItems as $piwikItem) {
list($sku, $name, $rowTotal, $qty) = $piwikItem;
$this->_piwikTracker->addEcommerceItem($sku, $name, false, $qty > 0 ? $rowTotal / $qty : 0, $qty);
}
// Push `trackEcommerceOrder'
if (!empty($piwikOrder)) {
list($orderId, $grandTotal, $subTotal, $tax, $shipping, $discount) = $piwikOrder;
$this->_piwikTracker->trackEcommerceOrder($orderId, $grandTotal, $subTotal, $tax, $shipping, $discount > 0 ? $discount : false);
}
return $this;
}
