How are the attributes shown on a frontend product view?

dmitry_fedyuk · March 1, 2016, 7:50pm

magento/magento2/blob/cf7df72/app/code/Magento/Catalog/view/frontend/layout/catalog_product_view.xml#L113-L117


<block class="Magento\Catalog\Block\Product\View\Attributes" name="product.attributes" as="additional" template="product/view/attributes.phtml" group="detailed_info">
    <arguments>
        <argument translate="true" name="title" xsi:type="string">More Information</argument>
    </arguments>
</block>

github.com

magento/magento2/blob/cf7df72/app/code/Magento/Catalog/view/frontend/templates/product/view/attributes.phtml#L19-L33


<?php if ($_additional = $block->getAdditionalData()): ?>
<div class="additional-attributes-wrapper table-wrapper">
    <table class="data table additional-attributes" id="product-attribute-specs-table">
        <caption class="table-caption"><?php /* @escapeNotVerified */ echo __('More Information') ?></caption>
        <tbody>
        <?php foreach ($_additional as $_data): ?>
            <tr>
                <th class="col label" scope="row"><?php echo $block->escapeHtml(__($_data['label'])) ?></th>
                <td class="col data" data-th="<?php echo $block->escapeHtml(__($_data['label'])) ?>"><?php /* @escapeNotVerified */ echo $_helper->productAttribute($_product, $_data['value'], $_data['code']) ?></td>
            </tr>
        <?php endforeach; ?>
        </tbody>
    </table>
</div>
<?php endif;?>

github.com

magento/magento2/blob/cf7df72/app/code/Magento/Catalog/Block/Product/View/Attributes.php#L64-L72


/**
 * $excludeAttr is optional array of attribute codes to
 * exclude them from additional data array
 *
 * @param array $excludeAttr
 * @return array
 * @SuppressWarnings(PHPMD.CyclomaticComplexity)
 */
public function getAdditionalData(array $excludeAttr = [])

github.com

magento/magento2/blob/cf7df72/app/code/Magento/Catalog/Block/Product/View/Attributes.php#L74-L76


$data = [];
$product = $this->getProduct();
$attributes = $product->getAttributes();

github.com

magento/magento2/blob/cf7df72/app/code/Magento/Catalog/Block/Product/View/Attributes.php#L77-L97


foreach ($attributes as $attribute) {
    if ($attribute->getIsVisibleOnFront() && !in_array($attribute->getAttributeCode(), $excludeAttr)) {
        $value = $attribute->getFrontend()->getValue($product);


        if (!$product->hasData($attribute->getAttributeCode())) {
            $value = __('N/A');
        } elseif ((string)$value == '') {
            $value = __('No');
        } elseif ($attribute->getFrontendInput() == 'price' && is_string($value)) {
            $value = $this->priceCurrency->convertAndFormat($value);
        }


        if (is_string($value) && strlen($value)) {
            $data[$attribute->getAttributeCode()] = [
                'label' => __($attribute->getStoreLabel()),
                'value' => $value,
                'code' => $attribute->getAttributeCode(),
            ];
        }
    }
}