How to create cron for partial invoice of an order - magento

Question

I want to create partial invoice for downloadable product of an order based on release date of that product, I have got so many solutions to create partial invoice but it's create the invoice for all product, not for selected one.

Answer 1

Here is the solution but don't forget to change condition according your requirement.
<?php
require_once '../app/Mage.php';
Mage::app('admin');
CapturePayment::createInvoice();
class CapturePayment {
public static function createInvoice() {
$orders = Mage::getModel('sales/order')->getCollection()
->addFieldToFilter('status', array('processing'));
foreach ($orders as $order) {
$orderId = $order->getIncrementId();
try {
if (!$order->getId() || !$order->canInvoice()) {
echo 'Invoice is not allowed for order=>.' . $orderId . "\n";
continue;
}
$items = $order->getAllItems();
$partial = false;
$qtys = array();
foreach ($items as $item) {
/* Check wheter we can create invoice for this item or not */
if (!CapturePayment::canInvoiceItem($item, array())) {
continue;
}
/* Get product id on the basis of order item id */
$productId = $item->getProductId();
/* If product is tablet then don't create invoice for the same */
/* Put your condition here for items you want to create the invoice e.g.*/
/* Load the product to get the release date */
$productDetails = Mage::getModel('catalog/product')->load($productId);
/* create your $qtys array here like */
$qtys['orderItemId'] = 'quantityOrdered';
/* NOTE: But if you don't want to craete invoice for any particular item then pass the '0' quantity for that item and set the value for $partial = true if some product remain in any order*/
}
/* Prepare the invoice to capture/create the invoice */
$invoice = Mage::getModel('sales/service_order', $order)->prepareInvoice($qtys);
if (!$invoice->getTotalQty()) {
continue;
}
$amount = $invoice->getGrandTotal();
if ($partial) {
$amount = $invoice->getGrandTotal();
$invoice->register()->pay();
$invoice->getOrder()->setIsInProcess(true);
$history = $invoice->getOrder()->addStatusHistoryComment('Partial amount of $' . $amount . ' captured automatically.', false);
$history->setIsCustomerNotified(true);
$invoice->sendEmail(true, '');
$order->save();
Mage::getModel('core/resource_transaction')
->addObject($invoice)
->addObject($invoice->getOrder())
->save();
$invoice->save();
} else {
$invoice->setRequestedCaptureCase(Mage_Sales_Model_Order_Invoice::CAPTURE_ONLINE);
$invoice->register();
$invoice->getOrder()->setCustomerNoteNotify(true);
$invoice->getOrder()->setIsInProcess(false);
$invoice->getOrder()->setData('state', "complete");
$invoice->getOrder()->setStatus("complete");
$invoice->sendEmail(true, '');
$order->save();
Mage::getModel('core/resource_transaction')
->addObject($invoice)
->addObject($invoice->getOrder())
->save();
$invoice->save();
}
} catch (Exception $e) {
echo 'Exception in Order => ' . $orderId . '=>' . $e . "\n";
}
}
}
/* Check the invoice status for an item of an order */
public static function canInvoiceItem($item, $qtys=array()) {
if ($item->getLockedDoInvoice()) {
return false;
}
if ($item->isDummy()) {
if ($item->getHasChildren()) {
foreach ($item->getChildrenItems() as $child) {
if (empty($qtys)) {
if ($child->getQtyToInvoice() > 0) {
return true;
}
} else {
if (isset($qtys[$child->getId()]) && $qtys[$child->getId()] > 0) {
return true;
}
}
}
return false;
} else if ($item->getParentItem()) {
$parent = $item->getParentItem();
if (empty($qtys)) {
return $parent->getQtyToInvoice() > 0;
} else {
return isset($qtys[$parent->getId()]) && $qtys[$parent->getId()] > 0;
}
}
} else {
return $item->getQtyToInvoice() > 0;
}
}
}