I've updated my Magento environment from to As usual, I stumbled across a few problems. Most of those problems I'm able to fix after a while, but I've discovered a very strange problem that I just can't seem to wrap my head around.

I'm using OnePageCheckout for logged in users to pay their products (OneStepCheckout works fine). I can go through every step, but when I push the "Submit Order" button, nothing happens. I don't have any JavaScript or PHP errors.

At first I thought my form needed a form key, since that's necessary for newer Magento versions. So I added this line of code:

review = new Review('<?php echo $this->getUrl('checkout/onepage/saveOrder', array('form_key' => Mage::getSingleton('core/session')->getFormKey())) ?>', '<?php echo $this->getUrl('checkout/onepage/success') ?>', $('checkout-agreements'));

This didn't fix it.

I tried to echo the saveOrder URL with it's form key and check what happened when I went directly to that URL. The link told me that nothing happened because I didn't check the Terms of Agreements box (which I did). So obviously I wanted to know what would happen when I turned the terms of agreements off in my Magento backend. It gave me the following error:

Fatal error: Call to undefined method Mage_Customer_Helper_Data::getFullCustomerName() in /home/users/tetesftp/xxxxx/app/code/core/Mage/Checkout/Helper/Data.php on line 238

I'm stuck right now. Where do I look? Usually it's a template problem as well, but now all the other templates (like RWD) aren't working either.

I hope someone can help me with this! Thanks in advance!

2 Answers 2


Check whether getFullCustomerName() exist in the helper file. May be the update was not done properly, Since the getFullCustomerName() function is not available in magento, you only have getCustomerName() and that is the undefined function error.

  • I replaced the entire app/code/core/Mage map with the code from the latest downloaded version of Magento and it still shows the same error. Also the getFullCustomerName method does exist. Commented Feb 8, 2016 at 9:04
  • Make sure whether you got a function getFullCustomerName() in the Mage/Customer/HelperData.php file and if so try flushing the cache modules if you use any. Commented Feb 11, 2016 at 10:22
  • The function is there. What do you mean flushing the cache modules? I did flush the Magento cache if that's what you mean. Commented Feb 11, 2016 at 11:16
  • Is it possible that the code is looking for the function in a different way? This is calling the function: 'customer' => Mage::helper('customer')->getFullCustomerName($checkout) which you can find in app/code/core/Checkout/Helper/Data.php and you can find the function itself in app/code/core/Mage/Customer/helper/Data.php Commented Feb 11, 2016 at 11:25

I just figured out that my environment was reading some of my old files, because I still had old files in app/code/local. I simply had to rename the Mage map in this folder.

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