Magento: How to show unset attributes as empty not "No" / "N/A"? - magento

Question

Magento has done great job on showing empty attributes as "No" or "N/A", but
I need them to show up as empty table cells.
I know this code hides empty attributes completely:
<?php foreach ($_additional as $_data): ?>
<?php $_attribute = $_product->getResource()->getAttribute($_data['code']);
if (!is_null($_product->getData($_attribute->getAttributeCode())) && ((string)$_attribute->getFrontend()->getValue($_product) != '')) { ?>
<tr>
<th class="label"><?php echo $this->htmlEscape($this->__($_data['label'])) ?></th>
<td class="data"><?php echo $_helper->productAttribute($_product, $_data['value'], $_data['code']) ?></td>
</tr>
<?php } ?>
<?php endforeach; ?>
Source: http://www.magthemes.com/magento-blog/empty-attributes-showing-na-fix/
but as I am new to php, I don't really know how to modify it to show them empty.
I know I could go to core files and modify Attributes.php, but thats a bad practice and I wanted to do it right.
Thanks in advance!

Answer 1

You can write a extension thar rewrites Mage_Catalog_Block_Product_View_Attributes::getAdditionalData. But this requires much more knowledge than is necessary to modify the template.
Modify template. Your code is already done. Only few modifications need
<?php foreach ($_additional as $_data): ?>
<?php
$_attribute = $_product->getResource()->getAttribute($_data['code']);
$_isEmpty = (!is_null($_product->getData($_attribute->getAttributeCode())) &&((string)$_attribute->getFrontend()->getValue($_product) != ''));
?>
<tr>
<th class="label"><?php echo $this->htmlEscape($this->__($_data['label'])) ?></th>
<td class="data"><?php if (!$_isEmpty) { echo $_helper->productAttribute($_product, $_data['value'], $_data['code'])} ?> </td>
</tr>
<?php endforeach; ?>
P.S. Code can contain errors, have not tested :)

Answer 2

ALT+0160
Use the above keyboard shortcut as the attribute value when you edit your product.
How?
On Windows, at least, do the following:
Hold ALT key and type the numbers 0160 on your keypad. Now release the ALT key.
Basically a whitespace character appears that is not a space character. This will register as a non-null value for your product field and the engine will render the character which, fortunately for us humans, is a whitespace that we won't see.
It's not elegant, but it will help those who aren't able to modify template code.

Answer 3

i try with this options to remove "No or N/A" and ok remove this words but don´t remove atribute name. i use this code:
<?php
$_helper = $this->helper('catalog/output');
$_product = $this->getProduct()
?>
<?php if($_additional = $this->getAdditionalData()): ?>
<div class="akordeon-item-head">
<div class="akordeon-item-head-container">
<div class="akordeon-heading">
<?php echo $this->__('Additional Information') ?>
</div>
</div>
</div>
<div class="akordeon-item-body">
<div class="akordeon-item-content">
<table class="data-table" id="product-attribute-specs-table">
<col width="25%" />
<col />
<tbody>
<?php foreach ($_additional as $_data): ?>
<?php
$_attribute = $_product->getResource()->getAttribute($_data['code']);
$_isEmpty = (!is_null($_product->getData($_attribute->getAttributeCode())) &&((string)$_attribute->getFrontend()->getValue($_product) != ''));?>
<tr>
<th class="label"><?php echo $this->htmlEscape($this->__($_data['label'])) ?></th>
<td class="data"><?php if ($_isEmpty) { echo $_helper->productAttribute($_product, $_data['value'], $_data['code']);} ?>
</tr>
<?php endforeach; ?>
</tbody>
</table>
<script type="text/javascript">decorateTable('product-attribute-specs-table')</script>
</div>
</div>
<?php endif;?>

Answer 4

i find this anwerd and work for me
<?php foreach ($_additional as $_data): ?>
<?php if ($_data['value'] == 'No') {continue;} ?>
<tr>
<th class="label"><?php echo $this->htmlEscape($this->__($_data['label'])) ?></th>
<td class="data"><?php echo $_helper->productAttribute($_product, $_data['value'], $_data['code']) ?></td>
</tr>