Magento - show order comments on a phtml - php

Question

i have bought a POS for magento.
My magento is running on magento 1.8.1 CE.
The POS produces a receipt through a phtml.
And than it will be printed. (on a 80 mm receipt printer)
But now i would like to add the ordercomments to the phtml
The base of the order is already loaded to the phtml:
$info_order = Mage::getSingleton('adminhtml/session')->getInfoOrder();
$entity_id = $info_order['entity_id'];
$order_id = Mage::getSingleton('adminhtml/session')->getOrderViewDetail();
$data = Mage::getModel('sales/order')->load($order_id);
But i can't get the comments loaded.
tried already (among a lot of other code found here):
$ordercomment = $data->getData('comment');
and in the body op the phtml
<?php echo $ordercomment ?>
But that doesn't work. The order which i am trying it on has a ordercomment.
Who can help me with this?
UPDATE 9-11-2014 16:46 PM (W-European time)
I tried the solution from jQuery Angry Bird:
<?php $orders = Mage::getModel('sales/order')
->getCollection()
->addFieldToFilter('status',array('pending','processing'));
foreach ($orders as $order) {
$orderComments = $order->getAllStatusHistory();
foreach ($orderComments as $comment) {
$body = $comment->getData('comment');
echo $body;
}
}
And try to call it by using:
<?php echo $orderComments ?>
I now get all tranaction data from all the pending/processing orders.
But this order is already in the state shipped.
And i want only the comment which the customer has added to the order. Not the transaction history.
What am i missing?

Answer 1

Use following approach
$orders = Mage::getModel('sales/order')
->getCollection()
->addFieldToFilter('status',array('pending','processing'));
foreach ($orders as $order) {
$orderComments = $order->getAllStatusHistory();
foreach ($orderComments as $comment) {
$body = $comment->getData('comment');
echo $body;
}
}