Good article.

I have a question: I have created a Payment Method what Consume a Web Service of Gateway called SafetyPay, i need to include and display \"HTML Code\" on the confirmation page (which shows the Order Number) without changing the template manually.

Location of template:
/app/design/frontend/default/default/template/checkout/

Currently this is the Confirmation Message Content in success.phtml:
<code>
====================================================================
Your order has been received

Thank you for your purchase!

Your order # is: 100000026.
You will receive an order confirmation email with details of your order and a link to track its progress.
Click here to print a copy of your order confirmation.
====================================================================
</code>

I need change the template adding information from payment method:
<code>
====================================================================
Your order has been received

Thank you for your purchase!

Your order # is: 100000026.
You will receive an order confirmation email with details of your order and a link to track its progress.
Click here to print a copy of your order confirmation.

To complete payment of this transaction, please go to your Online Banking, and use the following information:
Your Transaction ID is: 11611
Your Purchase Amount is: 41.27 Euro (EUR)

You can [Click here] to go directly to SAFETYPAY Default Bank.

IMPORTANT: This Transaction will expire in 2 hours.
====================================================================
</code>

Is it possible to do this using layouts?

I have my XML File Layout in:
<code>
<?xml version=\"1.0\"?>
<layout version=\"0.1.0\">
<default>
</default>

<checkout_onepage_success>
<reference name=\"root\">
<action method=\"setTemplate\"><template>page/2columns-right.phtml</template></action>
</reference>
<reference name=\"before_body_end\">
<block name=\"checkout.success.safetypay\" template=\"safetypay/confirmation.phtml\" type=\"safetypay/confirmation\" />
</reference>

<reference name=\"content\">
<block name=\"checkout.success\" template=\"checkout/success.phtml\" type=\"checkout/onepage_success\" />
<block name=\"checkout.success.safetypay\" template=\"safetypay/confirmation.phtml\" type=\"safetypay/confirmation\" />
</reference>
</checkout_onepage_success>
</layout>
<code>

The content of file: confirmation.phtml
<code>
<?php
/**
* Magento Confirm Message
?>
To complete payment of this transaction, please go to your Online Banking, and use the following information:
Your Transaction ID is: <?php echo $this->getTransactionID; ?>
Your Purchase Amount is: <?php echo $this->getPurchaseAmount; ?>

You can [Click here] to go directly to <?php echo $this->getBankName; ?>.

IMPORTANT: This Transaction will expire in <?php echo $this->getTimeExpire; ?>.
</code>

I have read that this also can be performed by Code… I hope your support….