Show custom payment option value at backed order detail page and invoice

Question

I have created some custom options for payment. Like this article has suggested.

http://excellencemagentoblog.com/blog/2011/10/28/magento-create-custom-payment-method/

Now I want to show these custom column values to back-end order detail page and at invoice too.

Please guide How can I do this.

Answer 1

In your payment method you can assign an Info form block with setting (I took the Purchaseorder method as an example):

protected $_infoBlockType = 'payment/info_purchaseorder';

In this block you can assign the template file you want to use (see Mage_Payment_Block_Info_Purchaseorder for complete code):

protected function _construct()
    {
        parent::_construct();
        $this->setTemplate('payment/info/purchaseorder.phtml');
    }

And in this template file you can add info you want to dispay (the fields you added during the checkout):

<ul class="form-list" id="payment_form_<?php echo $this->getMethodCode() ?>" style="display:none;">
    <li>
        <label for="po_number" class="required"><em>*</em><?php echo $this->__('Purchase Order Number') ?></label>
        <div class="input-box">
            <input type="text" id="po_number" name="payment[po_number]" title="<?php echo $this->__('Purchase Order Number') ?>" class="input-text required-entry" value="<?php echo $this->escapeHtml($this->getInfoData('po_number')) ?>" />
        </div>
    </li>
</ul>

This will display the information entered at checkout in the order detail page.