将woocommerce变体GTIN添加到结构化数据中

Question

如果一个网店有不同的产品，在某些情况下，这些变化有唯一的gtin。在我们的例子中，它是EAN。如何将这些不同的gtin添加到结构化数据中?我编写了一个函数来插入多个"offer"在"offers"中，但这里无法识别GTIN。

功能如下:

//add structured data to the markup
function set_structured_data( $markup, $product ) {
if ($product->is_type('simple')){
$markup['brand'] = array('@type' => 'Brand', 'name' => get_post_meta( $product->get_id(), '_brand', true ) );
$markup['gtin8'] =  get_post_meta( $product->get_id(), '_EAN', true );
}
if ($product->is_type('variable')){

$available_variations = $product->get_available_variations();
foreach ($available_variations as $variation) {
$variation_id = $variation['variation_id'];
$variproduct = wc_get_product($variation_id);
$i++;
$stock = $product->get_stock_status();

$offers[] = array(
'type'                  => 'Offer',
'price'                 => $variproduct->get_price(),
'priceValidUntil'       => $priceuntil,
'priceSpecification'    => array( 
'price'                     => $variproduct->get_price(),
'priceCurrency'             => get_woocommerce_currency(),
'valueAddedTaxIncluded'     => 'http://schema.org/True'
),
'priceCurrency'         => get_woocommerce_currency(),
'availability'          => 'http://schema.org/'.$stock.'',
'url'                   => get_the_permalink(),
'seller'                => array (
'type'                  => 'Organization',
'name'                  => 'HeatPerformance®',
'url'                   => get_the_permalink(),
));
}
$markup['offers'] =  $offers;
$markup['brand'] = array('@type' => 'Brand', 'name' => get_post_meta( $product->get_id(), '_brand', true ) );
}
return $markup;
}
add_filter( 'woocommerce_structured_data_product',  'set_structured_data', 99, 2 );

任何想法?

Answer 1

好了，经过几天的困惑，我找到了一个解决方案的路径:https://support.google.com/merchants/answer/6386198?hl=en

结果是我纠正了woocommerce的标准化方法，使每个变体都是一个独特的产品。

所以首先删除标记的情况下的可变产品，像这样:

function set_structured_data( $markup, $product ) {
if ($product->is_type('variable')) {
$markup = array();
}
return $markup;
}
add_filter( 'woocommerce_structured_data_product',  'set_structured_data', 99, 2 );

然后再次构建ld+json脚本，但随后需要的方式:

function set_structured_data_variable() {
global $product;
if (isset($product)){
if ($product->is_type('variable') && !empty($product)){
$available_variations = $product->get_available_variations();
$date = date("Y-m-d",strtotime(" + 3months"));
$commenttext = '';
$commentauthor = '';
$commentdate = '';
$comments = get_comments(array( 'post_id' => $product->get_id(), 'number' => '1' ));
foreach($comments as $comment) {
$commenttext = $comment->comment_content;
$commentauthor = $comment->comment_author;
$commentdate = $comment->comment_date;
}
foreach ($available_variations as $variation) {
$variation_id = $variation['variation_id'];
$variproduct = wc_get_product($variation_id);
$i++;
$gtin = 0000000000001;
if (!empty(get_post_meta( $variation_id, '_EAN', true ))){
$gtin = get_post_meta( $variation_id, '_EAN', true );
}
$stock = $product->get_stock_status();
$arrays[$i] = array(
'@context'      => 'https://schema.org/',
'@type'             => 'Product',
'sku'           => $variproduct->get_sku(),
'gtin13'        => $gtin,
'image'         => get_the_post_thumbnail_url($product->get_id()),
'name'          => implode(" / ", $variproduct->get_variation_attributes()),
'description'   => wp_strip_all_tags(get_the_excerpt($product->get_id())),
'brand'         => array('@type' => 'Brand', 'name' => get_post_meta( $product->get_id(), '_brand', true ) ),
'review'        => array(
'@type' => 'Review', 
'reviewRating' => array ( 
'@type' => 'Rating', 
'ratingValue' => $product->get_review_count(),
'bestRating' => '5',
'worstRating' => '1',
),
'author' => array(
'@type' => 'person',
'name' => $commentauthor,
'reviewBody' => $commenttext,
'datePublished' => $commentdate,
)),
'aggregateRating' => array (
'@type' => 'AggregateRating',
'ratingValue'=> $product->get_average_rating(),
'reviewCount' => $product->get_rating_count(),
),
'inProductGroupWithID' => $product->get_sku(),
'offers' => array(
'@type'                 => 'Offer',
'price'                 => $variproduct->get_price(),
'priceValidUntil'       => $date,
'priceSpecification'    => array( 
'price'                     => $variproduct->get_price(),
'priceCurrency'             => get_woocommerce_currency(),
'valueAddedTaxIncluded'     => 'http://schema.org/True'
),
'priceCurrency'         => get_woocommerce_currency(),
'availability'          => 'http://schema.org/'.$stock.'',
'url'                   => get_the_permalink(),
'seller'                => array (
'type'                  => 'Organization',
'name'                  => 'HeatPerformance®',
'url'                   => get_the_permalink(),
)));
}
echo '<script type="application/ld+json" class="buronoort">[';
$i = 0;
foreach ($arrays as $array){
$i++;
echo json_encode($array);
if ($i < array_key_last($arrays)){
echo ',';
}
}
echo ']</script>';
}
}
}
add_action('wp_head','set_structured_data_variable', 19);

在结构化数据的测试工具中进行了测试，并且正常工作。有点担心的是产品评论，然而，我必须研究一下在多次评论之后会发生什么。另一个问题是EAN，我已经把它的标准设置为"0000000000001"。因为还没有输入所有的ean。所以这是一个有争议的解决方案，但如果有人有更好的主意，请告诉我。