/**
* Reserve order ID for specified quote and start checkout on PayPal
*
* @param string $returnUrl
* @param string $cancelUrl
* @return mixed
*/
public function start($returnUrl, $cancelUrl)
{
$this->_quote->collectTotals();
if (!$this->_quote->getGrandTotal() && !$this->_quote->hasNominalItems()) {
Mage::throwException(Mage::helper('paypal')->__('PayPal does not support processing orders with zero amount. To complete your purchase, proceed to the standard checkout process.'));
}
$this->_quote->reserveOrderId()->save();
// prepare API
$this->_getApi();
$this->_api->setAmount($this->_quote->getBaseGrandTotal())->setCurrencyCode($this->_quote->getBaseCurrencyCode())->setInvNum($this->_quote->getReservedOrderId())->setReturnUrl($returnUrl)->setCancelUrl($cancelUrl)->setSolutionType($this->_config->solutionType)->setPaymentAction($this->_config->paymentAction);
if ($this->_giropayUrls) {
list($successUrl, $cancelUrl, $pendingUrl) = $this->_giropayUrls;
$this->_api->addData(array('giropay_cancel_url' => $cancelUrl, 'giropay_success_url' => $successUrl, 'giropay_bank_txn_pending_url' => $pendingUrl));
}
$this->_setBillingAgreementRequest();
if ($this->_config->requireBillingAddress == Mage_Paypal_Model_Config::REQUIRE_BILLING_ADDRESS_ALL) {
$this->_api->setRequireBillingAddress(1);
}
// supress or export shipping address
if ($this->_quote->getIsVirtual()) {
if ($this->_config->requireBillingAddress == Mage_Paypal_Model_Config::REQUIRE_BILLING_ADDRESS_VIRTUAL) {
$this->_api->setRequireBillingAddress(1);
}
$this->_api->setSuppressShipping(true);
} else {
$address = $this->_quote->getShippingAddress();
$isOverriden = 0;
if (true === $address->validate()) {
$isOverriden = 1;
$this->_api->setAddress($address);
}
$this->_quote->getPayment()->setAdditionalInformation(self::PAYMENT_INFO_TRANSPORT_SHIPPING_OVERRIDEN, $isOverriden);
$this->_quote->getPayment()->save();
}
// add line items
$paypalCart = Mage::getModel('paypal/cart', array($this->_quote));
$this->_api->setPaypalCart($paypalCart)->setIsLineItemsEnabled($this->_config->lineItemsEnabled);
// add shipping options if needed and line items are available
if ($this->_config->lineItemsEnabled && $this->_config->transferShippingOptions && $paypalCart->getItems()) {
if (!$this->_quote->getIsVirtual() && !$this->_quote->hasNominalItems()) {
if ($options = $this->_prepareShippingOptions($address, true)) {
$this->_api->setShippingOptionsCallbackUrl(Mage::getUrl('*/*/shippingOptionsCallback', array('quote_id' => $this->_quote->getId())))->setShippingOptions($options);
}
}
}
// add recurring payment profiles information
if ($profiles = $this->_quote->prepareRecurringPaymentProfiles()) {
foreach ($profiles as $profile) {
$profile->setMethodCode(Mage_Paypal_Model_Config::METHOD_WPP_EXPRESS);
if (!$profile->isValid()) {
Mage::throwException($profile->getValidationErrors(true, true));
}
}
$this->_api->addRecurringPaymentProfiles($profiles);
}
$this->_config->exportExpressCheckoutStyleSettings($this->_api);
// call API and redirect with token
$this->_api->callSetExpressCheckout();
$token = $this->_api->getToken();
$this->_redirectUrl = $this->_config->getExpressCheckoutStartUrl($token);
$this->_quote->getPayment()->unsAdditionalInformation(self::PAYMENT_INFO_TRANSPORT_BILLING_AGREEMENT);
$this->_quote->getPayment()->save();
return $token;
}