How to add a product attribute value by XML in the product design section?

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1

Hello guys,

I need to show an attribute into the product page and I have some difficulties with the “select” attributes. This is the xml that I have written in the product update design configuration:

  <referenceContainer name="product.info.media">

  	<block class="Magento\Catalog\Block\Product\View\Description" name="product.info.compatibility" template="product/view/attribute.phtml" after="-">
  		<arguments>
  			<argument name="at_call" xsi:type="string">getCompatibility</argument>
  			<argument name="at_code" xsi:type="string">compatibility</argument>
  			<argument name="css_class" xsi:type="string">compatibility</argument>
  			<argument name="at_label" translate="true" xsi:type="string">Compatibility</argument>
  			<argument name="add_attribute" xsi:type="string">itemprop="compatibility"</argument>
  		</arguments>
  	</block>
  	
  </referenceContainer>

In this way I get the index of the array and not the values! I have added this row:

  			<argument name="at_type" xsi:type="string">text</argument>

but the result is an error:

Notice: Array to string conversion in /app/code/Magento/Catalog/view/frontend/templates/product/view/attribute.phtml on line 38

thanks

2

Seems that Magento 2 template doesn’t consider the case where the attribute is an array.

I have changed the attribute.phtml in my theme in this way:

<?php
/**
 * Copyright © 2013-2017 Magento, Inc. All rights reserved.
 * See COPYING.txt for license details.
 */

// @codingStandardsIgnoreFile

/**
 * Product view template
 *
 * @see \Magento\Catalog\Block\Product\View\Description
 */
?>
<?php
$_helper = $this->helper('Magento\Catalog\Helper\Output');
$_product = $block->getProduct();
$_call = $block->getAtCall();
$_code = $block->getAtCode();
$_className = $block->getCssClass();
$_attributeLabel = $block->getAtLabel();
$_attributeType = $block->getAtType();
$_attributeAddAttribute = $block->getAddAttribute();

if ($_attributeLabel && $_attributeLabel == 'default') {
    $_attributeLabel = $_product->getResource()->getAttribute($_code)->getFrontendLabel();
}
if ($_attributeType && $_attributeType == 'text') {
    $_attributeValue = ($_helper->productAttribute($_product, $_product->$_call(), $_code)) ? $_product->getAttributeText($_code) : '';
} else {
    $_attributeValue = $_helper->productAttribute($_product, $_product->$_call(), $_code);
}
?>

<?php if ($_attributeValue): ?>
    <div class="product attribute <?php /* @escapeNotVerified */ echo $_className?>">
        <?php if ($_attributeLabel != 'none'): ?><strong class="type"><?php /* @escapeNotVerified */ echo $_attributeLabel?></strong><?php endif; ?>

        <?php if(!is_array($_attributeValue)): ?>
            <div class="value" <?php /* @escapeNotVerified */ echo $_attributeAddAttribute;?>><?php /* @escapeNotVerified */ echo $_attributeValue; ?></div>
        <?php else: ?>
            <?php foreach ($_attributeValue as $value): ?>
                <div class="value" <?php /* @escapeNotVerified */ echo $_attributeAddAttribute;?>><?php /* @escapeNotVerified */ echo $value; ?></div>
            <?php endforeach; ?>
        <?php endif; ?>
    </div>
<?php endif; ?>