/** * Filter function that generates and embeds Schema.org metadata in the content. */ function amt_add_schemaorg_metadata_content_filter($post_body) { if (apply_filters('amt_exclude_schemaorg_metadata', false)) { return $post_body; } // For AMT timings $t = microtime(true); // Get the options the DB $options = get_option("add_meta_tags_opts"); // Get current post object $post = amt_get_queried_object(); // Caching indicator $is_cached = 'no'; // First, try to get cached metadata. Cache must be cleared if settings have changed. if (absint($options['transient_cache_expiration']) > 0 && apply_filters('amt_enable_metadata_cache_in_content_filter', true)) { $cached_content_metadata_arr = amt_get_transient_cache($post, $options, $where = 'content'); if (!empty($cached_content_metadata_arr)) { $is_cached = 'yes'; // For AMT timings if ($options['enable_timings'] == '1') { array_unshift($cached_content_metadata_arr, sprintf('<!-- Add-Meta-Tags Timings (milliseconds) - Block total time: %.3f msec - Cached: %s -->', (microtime(true) - $t) * 1000, $is_cached)); } // Add our comment if ($options["omit_vendor_html_comments"] == "0") { array_unshift($cached_content_metadata_arr, "<!-- BEGIN Schema.org microdata added by the Add-Meta-Tags WordPress plugin -->"); } array_unshift($cached_content_metadata_arr, ""); // Intentionaly left empty if ($options["omit_vendor_html_comments"] == "0") { array_push($cached_content_metadata_arr, "<!-- END Schema.org microdata added by the Add-Meta-Tags WordPress plugin -->"); } array_push($cached_content_metadata_arr, ""); // Intentionaly left empty // // Non persistent cache for metadata review mode. // // The review mode's content filter should have bigger priority than this // filter (be executed after this one). This one by default has priority 9999 // while the review mode filter has priority of 10000 if (amt_check_run_metadata_review_code($options)) { // What happens here is this: we copy the metadata array and remove the // item that contains the content data, because it is not needed for // metadata review. // Then use non-persistent cache to store this new array. // Metadata Review mode's filtering function should be attached with a // priority bigger than this one, so that it is executed after this one. // There the data is loaded from the non-persistent cache. // This way, the timings are the same as in the source code and also // it is more efficient from a resources perspective. // WARNING: in order to work fine, set correct filter priorities. $metadata_arr_for_review = $cached_content_metadata_arr; if (array_key_exists('content_data', $metadata_arr_for_review)) { $metadata_arr_for_review['content_data'] = ' <!-- The content has been removed from the metadata review. -->'; } wp_cache_add('amt_cache_metadata_block_content_filter', $metadata_arr_for_review, $group = 'add-meta-tags'); unset($metadata_arr_for_review); } // Return cached metadata (contains the post body) return implode(PHP_EOL, $cached_content_metadata_arr); } } $do_auto_schemaorg = $options["auto_schemaorg"] == "1" ? true : false; if (!$do_auto_schemaorg) { return $post_body; } // Check if the microdata or the JSON-LD schema.org generator should be used. if ($options["schemaorg_force_jsonld"] == "1") { return $post_body; } // Check for AMP page https://www.ampproject.org/ // For AMP pages we do not generate Schema.org microdata around the post content, // but enforce the JSON+LD form. if ($do_auto_schemaorg && function_exists('is_amp_endpoint') && is_amp_endpoint()) { return $post_body; } if (is_feed()) { return $post_body; } if (!is_singular() || is_front_page()) { // is_front_page() is used for the case in which a static page is used as the front page. // In this filter function we only deal with content and attachments. return $post_body; } // Additional check to make sure we have a post. if ($post->ID == 0) { // Can happen with some BuddyPress pages (eg member page) return $post_body; } $metadata_arr = array(); // Since this is a function that is hooked to the 'the_content' filter // of WordPress, the post type check has not run, so this happens here. // Check if metadata is supported on this content type. $post_type = get_post_type($post); if (!in_array($post_type, amt_get_supported_post_types())) { return $post_body; } // Get an array containing the attachments $attachments = amt_get_ordered_attachments($post); //var_dump($attachments); // Get an array containing the URLs of the embedded media $embedded_media = amt_get_embedded_media($post); //var_dump($embedded_media); // Custom content override if (amt_is_custom($post, $options)) { // Return metadata with: // add_filter( 'amt_custom_metadata_schemaorg_content_filter', 'my_function', 10, 5 ); // Return an array of meta tags. Array item format: ['key_can_be_whatever'] = '<meta name="foo" content="bar" />' $metadata_arr = apply_filters('amt_custom_metadata_schemaorg_content_filter', $metadata_arr, $post, $options, $attachments, $embedded_media); // Products } elseif (amt_is_product()) { // Scope BEGIN: Product: http://schema.org/Product $metadata_arr[] = '<!-- Scope BEGIN: Product -->'; $metadata_arr[] = '<div itemscope itemtype="http://schema.org/Product"' . amt_get_schemaorg_entity_id_as_itemid('product') . amt_get_schemaorg_itemref('product') . '>'; // URL - Uses amt_get_permalink_for_multipage() $metadata_arr[] = '<meta itemprop="url" content="' . esc_url_raw(amt_get_permalink_for_multipage($post)) . '" />'; // mainEntityOfPage $metadata_arr[] = '<meta itemprop="mainEntityOfPage" content="' . esc_url(amt_get_permalink_for_multipage($post)) . '" />'; // name // Note: Contains multipage information through amt_process_paged() $metadata_arr[] = '<meta itemprop="name" content="' . esc_attr(amt_process_paged(strip_tags(get_the_title($post->ID)))) . '" />'; // headline - contains title information //$metadata_arr['microdata:headline'] = '<meta itemprop="headline" content="' . esc_attr( amt_get_title_for_metadata($options, $post) ) . '" />'; // Description - We use the description defined by Add-Meta-Tags // Note: Contains multipage information through amt_process_paged() $content_desc = amt_get_content_description($post); //if ( empty($content_desc) ) { // // Use the post body as the description. Product objects do not support body text. // $content_desc = sanitize_text_field( amt_sanitize_description( $post_body ) ); //} if (!empty($content_desc)) { $metadata_arr[] = '<meta itemprop="description" content="' . esc_attr(amt_process_paged($content_desc)) . '" />'; } // Dates $metadata_arr[] = '<meta itemprop="releaseDate" content="' . esc_attr(amt_iso8601_date($post->post_date)) . '" />'; // Images // First check if a global image override URL has been entered. // If yes, use this image URL and override all other images. $image_data = amt_get_image_data(amt_get_post_meta_image_url($post->ID)); if (!empty($image_data)) { $image_size = apply_filters('amt_image_size_product', 'full'); $image_meta_tags = amt_get_schemaorg_image_metatags($options, $image_data, $size = $image_size); if (!empty($image_meta_tags)) { $metadata_arr[] = '<!-- Scope BEGIN: ImageObject -->'; $metadata_arr[] = '<span itemprop="image" itemscope itemtype="http://schema.org/ImageObject">'; $metadata_arr = array_merge($metadata_arr, $image_meta_tags); $metadata_arr[] = '</span> <!-- Scope END: ImageObject -->'; } //$global_image_override_url = amt_get_post_meta_image_url($post->ID); //if ( ! empty( $global_image_override_url ) ) { // $metadata_arr[] = '<!-- Scope BEGIN: ImageObject -->'; // $metadata_arr[] = '<span itemprop="image" itemscope itemtype="http://schema.org/ImageObject">'; // $metadata_arr[] = '<meta itemprop="url" content="' . esc_url_raw( $global_image_override_url ) . '" />'; // $metadata_arr[] = '<meta itemprop="contentUrl" content="' . esc_url_raw( $global_image_override_url ) . '" />'; // $metadata_arr[] = '</span> <!-- Scope END: ImageObject -->'; // Further image processing } else { // Set to true if any image attachments are found. Use to finally add the default image // if no image attachments have been found. $has_images = false; // Scope BEGIN: ImageObject: http://schema.org/ImageObject // Image - Featured image is checked first, so that it can be the first associated image. if (function_exists('has_post_thumbnail') && has_post_thumbnail($post->ID)) { // Get the image attachment object $image = get_post(get_post_thumbnail_id($post->ID)); // metadata BEGIN $metadata_arr[] = '<!-- Scope BEGIN: ImageObject -->'; $metadata_arr[] = '<span itemprop="image" itemscope itemtype="http://schema.org/ImageObject">'; // Allow filtering of the image size. $image_size = apply_filters('amt_image_size_product', 'full'); // Get image metatags. $metadata_arr = array_merge($metadata_arr, amt_get_schemaorg_image_metatags($options, $image, $size = $image_size)); // metadata END $metadata_arr[] = '</span> <!-- Scope END: ImageObject -->'; // Images have been found. $has_images = true; } // Scope END: ImageObject // If no images have been found so far use the default image, if set. // Scope BEGIN: ImageObject: http://schema.org/ImageObject if ($has_images === false) { $image_data = amt_get_default_image_data(); if (!empty($image_data)) { $image_size = apply_filters('amt_image_size_product', 'full'); $image_meta_tags = amt_get_schemaorg_image_metatags($options, $image_data, $size = $image_size); if (!empty($image_meta_tags)) { $metadata_arr[] = '<!-- Scope BEGIN: ImageObject -->'; $metadata_arr[] = '<span itemprop="image" itemscope itemtype="http://schema.org/ImageObject">'; $metadata_arr = array_merge($metadata_arr, $image_meta_tags); $metadata_arr[] = '</span> <!-- Scope END: ImageObject -->'; } } //$metadata_arr[] = '<!-- Scope BEGIN: ImageObject -->'; //$metadata_arr[] = '<span itemprop="image" itemscope itemtype="http://schema.org/ImageObject">'; //$metadata_arr[] = '<meta itemprop="url" content="' . esc_url_raw( $options["default_image_url"] ) . '" />'; //$metadata_arr[] = '<meta itemprop="contentUrl" content="' . esc_url_raw( $options["default_image_url"] ) . '" />'; //$metadata_arr[] = '</span> <!-- Scope END: ImageObject -->'; } // Scope END: ImageObject } // Extend the current metadata with properties of the Product object. // See: http://schema.org/Product $metadata_arr = apply_filters('amt_product_data_schemaorg', $metadata_arr, $post); // Scope END: Product $metadata_arr[] = '</div> <!-- Scope END: Product -->'; // Filtering of the generated Schema.org metadata $metadata_arr = apply_filters('amt_schemaorg_metadata_product', $metadata_arr); // Add post body // Remove last closing '</div>' tag, add post body and re-add the closing div afterwards. $closing_product_tag = array_pop($metadata_arr); // Product objects do not support a 'text' itemprop. We just add a div for now // for consistency with Article objects. // TODO: it should allow filtering '<div>' $metadata_arr[] = '<div> <!-- Product text body: BEGIN -->'; $metadata_arr['content_data'] = $post_body; $metadata_arr[] = '</div> <!-- Product text body: END -->'; // Now add closing tag for Article $metadata_arr[] = $closing_product_tag; // Attachemnts } elseif (is_attachment()) { $mime_type = get_post_mime_type($post->ID); //$attachment_type = strstr( $mime_type, '/', true ); // See why we do not use strstr(): http://www.codetrax.org/issues/1091 $attachment_type = preg_replace('#\\/[^\\/]*$#', '', $mime_type); // Early metatags - Scope starts if ('image' == $attachment_type) { // Scope BEGIN: ImageObject: http://schema.org/ImageObject $metadata_arr[] = '<!-- Scope BEGIN: ImageObject -->'; $metadata_arr[] = '<div itemscope itemtype="http://schema.org/ImageObject"' . amt_get_schemaorg_itemref('attachment_image') . '>'; } elseif ('video' == $attachment_type) { // Scope BEGIN: VideoObject: http://schema.org/VideoObject $metadata_arr[] = '<!-- Scope BEGIN: VideoObject -->'; $metadata_arr[] = '<div itemscope itemtype="http://schema.org/VideoObject"' . amt_get_schemaorg_itemref('attachment_video') . '>'; } elseif ('audio' == $attachment_type) { // Scope BEGIN: AudioObject: http://schema.org/AudioObject $metadata_arr[] = '<!-- Scope BEGIN: AudioObject -->'; $metadata_arr[] = '<div itemscope itemtype="http://schema.org/AudioObject"' . amt_get_schemaorg_itemref('attachment_audio') . '>'; } else { // we do not currently support other attachment types, so we stop processing here return $post_body; } // Metadata common to all attachments // Do not add a publisher on personal websites (static front page is source of author profile). if ($options['author_profile_source'] != 'frontpage' || !amt_has_page_on_front()) { // Publisher // Scope BEGIN: Organization: http://schema.org/Organization $metadata_arr[] = '<!-- Scope BEGIN: Organization -->'; $metadata_arr[] = '<span itemprop="publisher" itemscope itemtype="http://schema.org/Organization"' . amt_get_schemaorg_itemref('organization') . '>'; // Get publisher metatags $metadata_arr = array_merge($metadata_arr, amt_get_schemaorg_publisher_metatags($options, $post->post_author)); // Scope END: Organization $metadata_arr[] = '</span> <!-- Scope END: Organization -->'; } // Author // Scope BEGIN: Person: http://schema.org/Person $metadata_arr[] = '<!-- Scope BEGIN: Person -->'; $metadata_arr[] = '<span itemprop="author" itemscope itemtype="http://schema.org/Person"' . amt_get_schemaorg_itemref('person_author') . '>'; // Get author metatags $metadata_arr = array_merge($metadata_arr, amt_get_schemaorg_author_metatags($post->post_author, $options)); // Scope END: Person $metadata_arr[] = '</span> <!-- Scope END: Person -->'; // name $metadata_arr[] = '<meta itemprop="name" content="' . esc_attr(strip_tags(get_the_title($post->ID))) . '" />'; // headline - contains title information $metadata_arr['microdata:headline'] = '<meta itemprop="headline" content="' . esc_attr(amt_get_title_for_metadata($options, $post)) . '" />'; // Description - We use the description defined by Add-Meta-Tags $content_desc = amt_get_content_description($post); if (!empty($content_desc)) { $metadata_arr[] = '<meta itemprop="description" content="' . esc_attr($content_desc) . '" />'; } // Dates $metadata_arr[] = '<meta itemprop="datePublished" content="' . esc_attr(amt_iso8601_date($post->post_date)) . '" />'; $metadata_arr[] = '<meta itemprop="dateModified" content="' . esc_attr(amt_iso8601_date($post->post_modified)) . '" />'; $metadata_arr[] = '<meta itemprop="copyrightYear" content="' . esc_attr(mysql2date('Y', $post->post_date)) . '" />'; // Language $metadata_arr[] = '<meta itemprop="inLanguage" content="' . esc_attr(str_replace('-', '_', amt_get_language_content($options, $post))) . '" />'; // Thumbnail // A featured image is supported by video and audio attachments. // If one is set, then it is set as the thumbnail of the video/audio object. if ('video' == $attachment_type || 'audio' == $attachment_type) { if (function_exists('has_post_thumbnail') && has_post_thumbnail($post->ID)) { // Thumbnail URL of the featured image $image_size = apply_filters('amt_image_size_attachment', 'full'); $thumbnail_info = wp_get_attachment_image_src(get_post_thumbnail_id($post->ID), $image_size); $metadata_arr[] = '<meta itemprop="thumbnailUrl" content="' . esc_url_raw($thumbnail_info[0]) . '" />'; // Currently we do not add a full ImageObject for the attachment's featured image. // TODO: future } } // mainEntityOfPage $metadata_arr[] = '<meta itemprop="mainEntityOfPage" content="' . esc_url(get_permalink($post->ID)) . '" />'; // Metadata specific to each attachment type if ('image' == $attachment_type) { // Allow filtering of the image size. $image_size = apply_filters('amt_image_size_attachment', 'full'); // Get image metatags. $post is an image object. $metadata_arr = array_merge($metadata_arr, amt_get_schemaorg_image_metatags($options, $post, $size = $image_size, $is_representative = true)); // Add the post body here $metadata_arr['content_data'] = $post_body; // Scope END: ImageObject $metadata_arr[] = '</div> <!-- Scope END: ImageObject -->'; } elseif ('video' == $attachment_type) { // Video specific metatags // URL (links to image file) //$metadata_arr[] = '<meta itemprop="url" content="' . esc_url_raw( get_permalink( $post->ID ) ) . '" />'; $metadata_arr[] = '<meta itemprop="url" content="' . esc_url_raw(wp_get_attachment_url($post->ID)) . '" />'; // sameAs (links to attachment page) $metadata_arr[] = '<meta itemprop="sameAs" content="' . esc_url_raw(get_permalink($post->ID)) . '" />'; $metadata_arr[] = '<meta itemprop="contentUrl" content="' . esc_url_raw(wp_get_attachment_url($post->ID)) . '" />'; $metadata_arr[] = '<meta itemprop="encodingFormat" content="' . esc_attr($mime_type) . '" />'; // Required by Google $metadata_arr[] = '<meta itemprop="uploadDate" content="' . esc_attr(amt_iso8601_date($post->post_date)) . '" />'; // Add the post body here $metadata_arr['content_data'] = $post_body; // Scope END: VideoObject $metadata_arr[] = '</div> <!-- Scope END: VideoObject -->'; } elseif ('audio' == $attachment_type) { // Audio specific metatags // URL (links to image file) //$metadata_arr[] = '<meta itemprop="url" content="' . esc_url_raw( get_permalink( $post->ID ) ) . '" />'; $metadata_arr[] = '<meta itemprop="url" content="' . esc_url_raw(wp_get_attachment_url($post->ID)) . '" />'; // sameAs (links to attachment page) $metadata_arr[] = '<meta itemprop="sameAs" content="' . esc_url_raw(get_permalink($post->ID)) . '" />'; $metadata_arr[] = '<meta itemprop="contentUrl" content="' . esc_url_raw(wp_get_attachment_url($post->ID)) . '" />'; $metadata_arr[] = '<meta itemprop="encodingFormat" content="' . esc_attr($mime_type) . '" />'; // Add the post body here $metadata_arr['content_data'] = $post_body; // Scope END: AudioObject $metadata_arr[] = '</div> <!-- Scope END: AudioObject -->'; } // Filtering of the generated Schema.org metadata $metadata_arr = apply_filters('amt_schemaorg_metadata_attachment', $metadata_arr); // Content } else { // Set main metadata entity. By default this set to Article. $main_content_object = 'Article'; // Check for Page // Main entity is set to WebPage on pages // DEV NOTE: Since many themes already set the WebPage itemscope on the // body element of the web page, set it to WebPage automatically would // result in duplicate entities. So this has to be done manually via // a filtering function. // if ( is_page() ) { // $main_content_object = 'WebPage'; // } // Check for Review $review_data = amt_get_review_data($post); if (!empty($review_data)) { $main_content_object = 'Review'; } // Allow filtering the main metadata object for content. $main_content_object = apply_filters('amt_schemaorg_object_main', $main_content_object); // Scope BEGIN: Article: http://schema.org/Article $metadata_arr[] = '<!-- Scope BEGIN: ' . esc_attr($main_content_object) . ' -->'; $metadata_arr[] = '<div itemscope itemtype="http://schema.org/' . esc_attr($main_content_object) . '"' . amt_get_schemaorg_itemref('content') . '>'; // Do not add a publisher on personal websites (static front page is source of author profile). if ($options['author_profile_source'] != 'frontpage' || !amt_has_page_on_front()) { // Publisher // Scope BEGIN: Organization: http://schema.org/Organization $metadata_arr[] = '<!-- Scope BEGIN: Organization -->'; $metadata_arr[] = '<span itemprop="publisher" itemscope itemtype="http://schema.org/Organization"' . amt_get_schemaorg_itemref('organization') . '>'; // Get publisher metatags $metadata_arr = array_merge($metadata_arr, amt_get_schemaorg_publisher_metatags($options, $post->post_author)); // Scope END: Organization $metadata_arr[] = '</span> <!-- Scope END: Organization -->'; } // Author // Scope BEGIN: Person: http://schema.org/Person $metadata_arr[] = '<!-- Scope BEGIN: Person -->'; $metadata_arr[] = '<span itemprop="author" itemscope itemtype="http://schema.org/Person"' . amt_get_schemaorg_itemref('person_author') . '>'; // Get publisher metatags $metadata_arr = array_merge($metadata_arr, amt_get_schemaorg_author_metatags($post->post_author, $options)); // Scope END: Person $metadata_arr[] = '</span> <!-- Scope END: Person -->'; // URL - Uses amt_get_permalink_for_multipage() $metadata_arr[] = '<meta itemprop="url" content="' . esc_url_raw(amt_get_permalink_for_multipage($post)) . '" />'; // mainEntityOfPage $metadata_arr[] = '<meta itemprop="mainEntityOfPage" content="' . esc_url(amt_get_permalink_for_multipage($post)) . '" />'; // Dates $metadata_arr[] = '<meta itemprop="datePublished" content="' . esc_attr(amt_iso8601_date($post->post_date)) . '" />'; $metadata_arr[] = '<meta itemprop="dateModified" content="' . esc_attr(amt_iso8601_date($post->post_modified)) . '" />'; $metadata_arr[] = '<meta itemprop="copyrightYear" content="' . esc_attr(mysql2date('Y', $post->post_date)) . '" />'; // Language $metadata_arr[] = '<meta itemprop="inLanguage" content="' . esc_attr(str_replace('-', '_', amt_get_language_content($options, $post))) . '" />'; // name // Note: Contains multipage information through amt_process_paged() $metadata_arr[] = '<meta itemprop="name" content="' . esc_attr(amt_process_paged(strip_tags(get_the_title($post->ID)))) . '" />'; // headline - contains title information $metadata_arr['microdata:headline'] = '<meta itemprop="headline" content="' . esc_attr(amt_get_title_for_metadata($options, $post)) . '" />'; // Description - We use the description defined by Add-Meta-Tags // Note: Contains multipage information through amt_process_paged() $content_desc = amt_get_content_description($post); if (!empty($content_desc)) { $metadata_arr[] = '<meta itemprop="description" content="' . esc_attr(amt_process_paged($content_desc)) . '" />'; } /* // Section: We use the first category as the section $first_cat = sanitize_text_field( amt_sanitize_keywords( amt_get_first_category($post) ) ); if (!empty($first_cat)) { $metadata_arr[] = '<meta itemprop="articleSection" content="' . esc_attr( $first_cat ) . '" />'; } */ // Add articleSection in Article object only. if ($main_content_object == 'Article') { $categories = get_the_category($post->ID); $categories = apply_filters('amt_post_categories_for_schemaorg', $categories); foreach ($categories as $cat) { $section = trim($cat->cat_name); if (!empty($section) && $cat->slug != 'uncategorized') { $metadata_arr[] = '<meta itemprop="articleSection" content="' . esc_attr($section) . '" />'; } } } // Add review properties if Review if ($main_content_object == 'Review') { $metadata_arr[] = '<!-- Review Information BEGIN -->'; $metadata_arr[] = amt_get_review_info_box($review_data); $metadata_arr[] = '<!-- Review Information END -->'; } // Keywords - We use the keywords defined by Add-Meta-Tags $keywords = amt_get_content_keywords($post); if (!empty($keywords)) { $metadata_arr[] = '<meta itemprop="keywords" content="' . esc_attr($keywords) . '" />'; } // Referenced Items $referenced_url_list = amt_get_referenced_items($post); foreach ($referenced_url_list as $referenced_url) { $referenced_url = trim($referenced_url); if (!empty($referenced_url)) { $metadata_arr[] = '<meta itemprop="referencedItem" content="' . esc_url_raw($referenced_url) . '" />'; } } // Images // First check if a global image override URL has been entered. // If yes, use this image URL and override all other images. $image_data = amt_get_image_data(amt_get_post_meta_image_url($post->ID)); if (!empty($image_data)) { $image_size = apply_filters('amt_image_size_content', 'full'); $image_meta_tags = amt_get_schemaorg_image_metatags($options, $image_data, $size = $image_size); if (!empty($image_meta_tags)) { $metadata_arr[] = '<!-- Scope BEGIN: ImageObject -->'; $metadata_arr[] = '<span itemprop="image" itemscope itemtype="http://schema.org/ImageObject">'; $metadata_arr = array_merge($metadata_arr, $image_meta_tags); $metadata_arr[] = '</span> <!-- Scope END: ImageObject -->'; } //$global_image_override_url = amt_get_post_meta_image_url($post->ID); //if ( ! empty( $global_image_override_url ) ) { // $metadata_arr[] = '<!-- Scope BEGIN: ImageObject -->'; // $metadata_arr[] = '<span itemprop="image" itemscope itemtype="http://schema.org/ImageObject">'; // $metadata_arr[] = '<meta itemprop="url" content="' . esc_url_raw( $global_image_override_url ) . '" />'; // $metadata_arr[] = '<meta itemprop="contentUrl" content="' . esc_url_raw( $global_image_override_url ) . '" />'; // $metadata_arr[] = '</span> <!-- Scope END: ImageObject -->'; // Further image processing } else { // Media Limits $image_limit = amt_metadata_get_image_limit($options); $video_limit = amt_metadata_get_video_limit($options); $audio_limit = amt_metadata_get_audio_limit($options); // Counters $ic = 0; // image counter $vc = 0; // video counter $ac = 0; // audio counter // We store the featured image ID in this variable so that it can easily be excluded // when all images are parsed from the $attachments array. $featured_image_id = 0; // Set to true if any image attachments are found. Use to finally add the default image // if no image attachments have been found. $has_images = false; // Scope BEGIN: ImageObject: http://schema.org/ImageObject // Image - Featured image is checked first, so that it can be the first associated image. if (function_exists('has_post_thumbnail') && has_post_thumbnail($post->ID)) { // Thumbnail URL // First add the thumbnail URL of the featured image $thumbnail_info = wp_get_attachment_image_src(get_post_thumbnail_id($post->ID), 'thumbnail'); $metadata_arr[] = '<meta itemprop="thumbnailUrl" content="' . esc_url_raw($thumbnail_info[0]) . '" />'; // Add full image object for featured image. // Get the image attachment object $image = get_post(get_post_thumbnail_id($post->ID)); // metadata BEGIN $metadata_arr[] = '<!-- Scope BEGIN: ImageObject -->'; $metadata_arr[] = '<span itemprop="image" itemscope itemtype="http://schema.org/ImageObject">'; // Allow filtering of the image size. $image_size = apply_filters('amt_image_size_content', 'full'); // Get image metatags. $metadata_arr = array_merge($metadata_arr, amt_get_schemaorg_image_metatags($options, $image, $size = $image_size)); // metadata END $metadata_arr[] = '</span> <!-- Scope END: ImageObject -->'; // Finally, set the $featured_image_id $featured_image_id = get_post_thumbnail_id($post->ID); // Images have been found. $has_images = true; // Increase image counter $ic++; } // Scope END: ImageObject // Process all attachments and add metatags (featured image will be excluded) foreach ($attachments as $attachment) { // Excluded the featured image since if ($attachment->ID != $featured_image_id) { $mime_type = get_post_mime_type($attachment->ID); //$attachment_type = strstr( $mime_type, '/', true ); // See why we do not use strstr(): http://www.codetrax.org/issues/1091 $attachment_type = preg_replace('#\\/[^\\/]*$#', '', $mime_type); if ('image' == $attachment_type && $ic < $image_limit) { // metadata BEGIN $metadata_arr[] = '<!-- Scope BEGIN: ImageObject -->'; $metadata_arr[] = '<span itemprop="image" itemscope itemtype="http://schema.org/ImageObject">'; // Allow filtering of the image size. $image_size = apply_filters('amt_image_size_content', 'full'); // Get image metatags. $metadata_arr = array_merge($metadata_arr, amt_get_schemaorg_image_metatags($options, $attachment, $size = $image_size)); // metadata END $metadata_arr[] = '</span> <!-- Scope END: ImageObject -->'; // Images have been found. $has_images = true; // Increase image counter $ic++; } elseif ('video' == $attachment_type && $vc < $video_limit) { // Scope BEGIN: VideoObject: http://schema.org/VideoObject $metadata_arr[] = '<!-- Scope BEGIN: VideoObject -->'; $metadata_arr[] = '<span itemprop="video" itemscope itemtype="http://schema.org/VideoObject">'; // Video specific metatags // URL (links to image file) //$metadata_arr[] = '<meta itemprop="url" content="' . esc_url_raw( get_permalink( $attachment->ID ) ) . '" />'; $metadata_arr[] = '<meta itemprop="url" content="' . esc_url_raw(wp_get_attachment_url($attachment->ID)) . '" />'; // sameAs (links to attachment page) $metadata_arr[] = '<meta itemprop="sameAs" content="' . esc_url_raw(get_permalink($attachment->ID)) . '" />'; $metadata_arr[] = '<meta itemprop="contentUrl" content="' . esc_url_raw(wp_get_attachment_url($attachment->ID)) . '" />'; $metadata_arr[] = '<meta itemprop="encodingFormat" content="' . esc_attr($mime_type) . '" />'; // name $metadata_arr[] = '<meta itemprop="name" content="' . esc_attr(strip_tags(get_the_title($attachment->ID))) . '" />'; // Description - We use the description defined by Add-Meta-Tags $content_desc = amt_get_content_description($attachment); if (!empty($content_desc)) { $metadata_arr[] = '<meta itemprop="description" content="' . esc_attr($content_desc) . '" />'; } // Thumbnail // A featured image is supported by video and audio attachments. // If one is set, then it is set as the thumbnail of the video/audio object. if (function_exists('has_post_thumbnail') && has_post_thumbnail($attachment->ID)) { // Thumbnail URL of the featured image $image_size = apply_filters('amt_image_size_content', 'full'); $thumbnail_info = wp_get_attachment_image_src(get_post_thumbnail_id($attachment->ID), $image_size); $metadata_arr[] = '<meta itemprop="thumbnailUrl" content="' . esc_url_raw($thumbnail_info[0]) . '" />'; // Currently we do not add a full ImageObject for the attachment's featured image. // TODO: future } // uploadDate $metadata_arr[] = '<meta itemprop="uploadDate" content="' . esc_attr(amt_iso8601_date($attachment->post_date)) . '" />'; // Scope END: VideoObject $metadata_arr[] = '</span> <!-- Scope END: VideoObject -->'; // Increase video counter $vc++; } elseif ('audio' == $attachment_type && $ac < $audio_limit) { // Scope BEGIN: AudioObject: http://schema.org/AudioObject $metadata_arr[] = '<!-- Scope BEGIN: AudioObject -->'; $metadata_arr[] = '<span itemprop="audio" itemscope itemtype="http://schema.org/AudioObject">'; // Audio specific metatags // URL (links to image file) //$metadata_arr[] = '<meta itemprop="url" content="' . esc_url_raw( get_permalink( $attachment->ID ) ) . '" />'; $metadata_arr[] = '<meta itemprop="url" content="' . esc_url_raw(wp_get_attachment_url($attachment->ID)) . '" />'; // sameAs (links to attachment page) $metadata_arr[] = '<meta itemprop="sameAs" content="' . esc_url_raw(get_permalink($attachment->ID)) . '" />'; $metadata_arr[] = '<meta itemprop="contentUrl" content="' . esc_url_raw(wp_get_attachment_url($attachment->ID)) . '" />'; $metadata_arr[] = '<meta itemprop="encodingFormat" content="' . esc_attr($mime_type) . '" />'; // name $metadata_arr[] = '<meta itemprop="name" content="' . esc_attr(strip_tags(get_the_title($attachment->ID))) . '" />'; // Description - We use the description defined by Add-Meta-Tags $content_desc = amt_get_content_description($attachment); if (!empty($content_desc)) { $metadata_arr[] = '<meta itemprop="description" content="' . esc_attr($content_desc) . '" />'; } // Thumbnail // A featured image is supported by video and audio attachments. // If one is set, then it is set as the thumbnail of the video/audio object. if (function_exists('has_post_thumbnail') && has_post_thumbnail($attachment->ID)) { // Thumbnail URL of the featured image $image_size = apply_filters('amt_image_size_content', 'full'); $thumbnail_info = wp_get_attachment_image_src(get_post_thumbnail_id($attachment->ID), $image_size); $metadata_arr[] = '<meta itemprop="thumbnailUrl" content="' . esc_url_raw($thumbnail_info[0]) . '" />'; // Currently we do not add a full ImageObject for the attachment's featured image. // TODO: future } // uploadDate $metadata_arr[] = '<meta itemprop="uploadDate" content="' . esc_attr(amt_iso8601_date($attachment->post_date)) . '" />'; // Scope END: AudioObject $metadata_arr[] = '</span> <!-- Scope END: AudioObject -->'; // Increase audio counter $ac++; } } } // Embedded Media foreach ($embedded_media['images'] as $embedded_item) { if ($ic == $image_limit) { break; } // Scope BEGIN: ImageObject: http://schema.org/ImageObject $metadata_arr[] = '<!-- Scope BEGIN: ImageObject -->'; $metadata_arr[] = '<span itemprop="image" itemscope itemtype="http://schema.org/ImageObject">'; // name (title) $metadata_arr[] = '<meta itemprop="name" content="' . esc_attr($embedded_item['alt']) . '" />'; // caption $metadata_arr[] = '<meta itemprop="caption" content="' . esc_attr($embedded_item['alt']) . '" />'; // alt $metadata_arr[] = '<meta itemprop="text" content="' . esc_attr($embedded_item['alt']) . '" />'; // URL (links to image file) //$metadata_arr[] = '<meta itemprop="url" content="' . esc_url_raw( $embedded_item['page'] ) . '" />'; $metadata_arr[] = '<meta itemprop="url" content="' . esc_url_raw($embedded_item['image']) . '" />'; // sameAs (links to attachment page) $metadata_arr[] = '<meta itemprop="sameAs" content="' . esc_url_raw($embedded_item['page']) . '" />'; // thumbnail url $metadata_arr[] = '<meta itemprop="thumbnailUrl" content="' . esc_url_raw($embedded_item['thumbnail']) . '" />'; // main image $metadata_arr[] = '<meta itemprop="contentUrl" content="' . esc_url_raw($embedded_item['image']) . '" />'; if (apply_filters('amt_extended_image_tags', true)) { $metadata_arr[] = '<meta itemprop="width" content="' . esc_attr($embedded_item['width']) . '" />'; $metadata_arr[] = '<meta itemprop="height" content="' . esc_attr($embedded_item['height']) . '" />'; $metadata_arr[] = '<meta itemprop="encodingFormat" content="image/jpeg" />'; } // embedURL $metadata_arr[] = '<meta itemprop="embedURL" content="' . esc_url_raw($embedded_item['player']) . '" />'; // Scope END: ImageObject $metadata_arr[] = '</span> <!-- Scope END: ImageObject -->'; // Images have been found. $has_images = true; // Increase image counter $ic++; } foreach ($embedded_media['videos'] as $embedded_item) { if ($vc == $video_limit) { break; } // Scope BEGIN: VideoObject: http://schema.org/VideoObject // See: http://googlewebmastercentral.blogspot.gr/2012/02/using-schemaorg-markup-for-videos.html // See: https://support.google.com/webmasters/answer/2413309?hl=en $metadata_arr[] = '<!-- Scope BEGIN: VideoObject -->'; $metadata_arr[] = '<span itemprop="video" itemscope itemtype="http://schema.org/VideoObject">'; // Video Embed URL $metadata_arr[] = '<meta itemprop="embedURL" content="' . esc_url_raw($embedded_item['player']) . '" />'; // playerType $metadata_arr[] = '<meta itemprop="playerType" content="application/x-shockwave-flash" />'; // size $metadata_arr[] = '<meta itemprop="width" content="' . esc_attr($embedded_item['width']) . '" />'; $metadata_arr[] = '<meta itemprop="height" content="' . esc_attr($embedded_item['height']) . '" />'; // Scope END: VideoObject $metadata_arr[] = '</span> <!-- Scope END: VideoObject -->'; // Increase video counter $vc++; } foreach ($embedded_media['sounds'] as $embedded_item) { if ($ac == $audio_limit) { break; } // Scope BEGIN: AudioObject: http://schema.org/AudioObject $metadata_arr[] = '<!-- Scope BEGIN: AudioObject -->'; $metadata_arr[] = '<span itemprop="audio" itemscope itemtype="http://schema.org/AudioObject">'; // Audio Embed URL $metadata_arr[] = '<meta itemprop="embedURL" content="' . esc_url_raw($embedded_item['player']) . '" />'; // playerType $metadata_arr[] = '<meta itemprop="playerType" content="application/x-shockwave-flash" />'; // Scope END: AudioObject $metadata_arr[] = '</span> <!-- Scope END: AudioObject -->'; // Increase audio counter $ac++; } // If no images have been found so far use the default image, if set. // Scope BEGIN: ImageObject: http://schema.org/ImageObject if ($has_images === false) { $image_data = amt_get_default_image_data(); if (!empty($image_data)) { $image_size = apply_filters('amt_image_size_content', 'full'); $image_meta_tags = amt_get_schemaorg_image_metatags($options, $image_data, $size = $image_size); if (!empty($image_meta_tags)) { $metadata_arr[] = '<!-- Scope BEGIN: ImageObject -->'; $metadata_arr[] = '<span itemprop="image" itemscope itemtype="http://schema.org/ImageObject">'; $metadata_arr = array_merge($metadata_arr, $image_meta_tags); $metadata_arr[] = '</span> <!-- Scope END: ImageObject -->'; } } //$metadata_arr[] = '<!-- Scope BEGIN: ImageObject -->'; //$metadata_arr[] = '<span itemprop="image" itemscope itemtype="http://schema.org/ImageObject">'; //$metadata_arr[] = '<meta itemprop="url" content="' . esc_url_raw( $options["default_image_url"] ) . '" />'; //$metadata_arr[] = '<meta itemprop="contentUrl" content="' . esc_url_raw( $options["default_image_url"] ) . '" />'; //$metadata_arr[] = '</span> <!-- Scope END: ImageObject -->'; } // Scope END: ImageObject } // Article Body // The article body is added after filtering the generated microdata below. // TODO: also check: comments, contributor, copyrightHolder, , creator, dateCreated, discussionUrl, editor, version (use post revision if possible) // Scope END: Article $metadata_arr[] = '</div> <!-- Scope END: ' . esc_attr($main_content_object) . ' -->'; // Filtering of the generated Schema.org metadata $metadata_arr = apply_filters('amt_schemaorg_metadata_content', $metadata_arr); // Add articleBody to Artice // Now add the article. Remove last closing '</span>' tag, add articleBody and re-add the closing span afterwards. $closing_article_tag = array_pop($metadata_arr); // Use the 'text' itemprop by default for the main text body of the CreativeWork, // so it can be used by more subtypes than Article. // But set it explicitly to 'articleBody if the main entiry is 'Article' // or 'reviewBody' if the main entity is a 'Review'. $main_text_property = 'text'; if ($main_content_object == 'Article') { $main_text_property = 'articleBody'; } elseif ($main_content_object == 'Review') { $main_text_property = 'reviewBody'; } // Allow filtering of the main text property. $main_text_property = apply_filters('amt_schemaorg_property_main_text', $main_text_property); $metadata_arr[] = '<div itemprop="' . esc_attr($main_text_property) . '">'; $metadata_arr['content_data'] = $post_body; $metadata_arr[] = '</div> <!-- Itemprop END: ' . esc_attr($main_text_property) . ' -->'; // Now add closing tag for Article $metadata_arr[] = $closing_article_tag; } // Store transient cache of content metadata if (absint($options['transient_cache_expiration']) > 0 && apply_filters('amt_enable_metadata_cache_in_content_filter', true)) { if (!empty($metadata_arr)) { amt_set_transient_cache($post, $options, $metadata_arr, $where = 'content'); } } // Add our comment if (count($metadata_arr) > 0) { // For AMT timings if ($options['enable_timings'] == '1') { array_unshift($metadata_arr, sprintf('<!-- Add-Meta-Tags Timings (milliseconds) - Block total time: %.3f msec - Cached: %s -->', (microtime(true) - $t) * 1000, $is_cached)); } if ($options["omit_vendor_html_comments"] == "0") { array_unshift($metadata_arr, "<!-- BEGIN Schema.org microdata added by the Add-Meta-Tags WordPress plugin -->"); } array_unshift($metadata_arr, ""); // Intentionaly left empty if ($options["omit_vendor_html_comments"] == "0") { array_push($metadata_arr, "<!-- END Schema.org microdata added by the Add-Meta-Tags WordPress plugin -->"); } array_push($metadata_arr, ""); // Intentionaly left empty } // // Non persistent cache for metadata review mode. // // The review mode's content filter should have bigger priority than this // filter (be executed after this one). This one by default has priority 9999 // while the review mode filter has priority of 10000 if (amt_check_run_metadata_review_code($options)) { // What happens here is this: we copy the metadata array and remove the // item that contains the content data, because it is not needed for // metadata review. // Then use non-persistent cache to store this new array. // Metadata Review mode's filtering function should be attached with a // priority bigger than this one, so that it is executed after this one. // There the data is loaded from the non-persistent cache. // This way, the timings are the same as in the source code and also // it is more efficient from a resources perspective. // WARNING: in order to work fine, set correct filter priorities. $metadata_arr_for_review = $metadata_arr; if (array_key_exists('content_data', $metadata_arr_for_review)) { $metadata_arr_for_review['content_data'] = ' <!-- The content has been removed from the metadata review. -->'; } wp_cache_add('amt_cache_metadata_block_content_filter', $metadata_arr_for_review, $group = 'add-meta-tags'); unset($metadata_arr_for_review); } //return $post_body; return implode(PHP_EOL, $metadata_arr); }
/** * Add Schema.org Microdata in the footer. * * Mainly used to embed microdata to front page, posts index page and archives. */ function amt_add_schemaorg_metadata_footer($post, $attachments, $embedded_media, $options) { if (apply_filters('amt_exclude_schemaorg_metadata', false)) { return array(); } $do_auto_schemaorg = $options["auto_schemaorg"] == "1" ? true : false; if (!$do_auto_schemaorg) { return array(); } // Check if the microdata or the JSON-LD schema.org generator should be used. if ($options["schemaorg_force_jsonld"] == "1") { return array(); } $metadata_arr = array(); if (is_paged()) { // // Currently we do not support adding Schema.org metadata on // paged archives, if page number is >=2 // // NOTE: This refers to an archive or the main page being split up over // several pages, this does not refer to a Post or Page whose content // has been divided into pages using the <!--nextpage--> QuickTag. // // Multipage content IS processed below. // return array(); } // Custom content override if (amt_is_custom($post, $options)) { // Return metadata with: // add_filter( 'amt_custom_metadata_schemaorg_footer', 'my_function', 10, 5 ); // Return an array of meta tags. Array item format: ['key_can_be_whatever'] = '<meta name="foo" content="bar" />' $metadata_arr = apply_filters('amt_custom_metadata_schemaorg_footer', $metadata_arr, $post, $options, $attachments, $embedded_media); return $metadata_arr; // Default fron tpage displaying the latest posts. } elseif (amt_is_default_front_page()) { // Organization // // NOTICE: // Even if the front page has been set as the source of profile, this // this does not work with the default front page with the latest posts. // This is becuase this page does not have an author, which is essential // for the generated metadata on a page that is supposed to be a profile. // Therefore, an Organization object is always generated on the default // front page and it is never treated as a profile page by Add-Meta-Tags. // // Scope BEGIN: Organization: http://schema.org/Organization $metadata_arr[] = '<!-- Scope BEGIN: Organization -->'; //$metadata_arr[] = '<span itemprop="mainEntity" itemscope itemtype="http://schema.org/Organization"' . amt_get_schemaorg_itemref('organization') . '>'; $metadata_arr[] = '<span itemscope itemtype="http://schema.org/Organization"' . amt_get_schemaorg_itemref('organization') . amt_get_schemaorg_entity_id_as_itemid('organization') . '>'; // Get publisher/mainEntity metatags $metadata_arr = array_merge($metadata_arr, amt_get_schemaorg_publisher_metatags($options)); // mainEntityOfPage $metadata_arr[] = '<meta itemprop="mainEntityOfPage" content="' . esc_url_raw(trailingslashit(get_bloginfo('url'))) . '" />'; // Scope END: Organization $metadata_arr[] = '</span> <!-- Scope END: Organization -->'; // WebSite // Scope BEGIN: WebSite: http://schema.org/WebSite $metadata_arr[] = '<!-- Scope BEGIN: WebSite -->'; $metadata_arr[] = '<span itemscope itemtype="http://schema.org/WebSite"' . amt_get_schemaorg_entity_id_as_itemid('website') . '>'; // name $metadata_arr[] = '<meta itemprop="name" content="' . esc_attr(get_bloginfo('name')) . '" />'; // headline - contains title information $metadata_arr['microdata:headline'] = '<meta itemprop="headline" content="' . esc_attr(amt_get_title_for_metadata($options, $post)) . '" />'; // alternateName (The WordPress tag line is used.) // TODO: use tag line. Needs feedback! //$metadata_arr[] = '<meta itemprop="name" content="' . esc_attr( get_bloginfo('name') ) . '" />'; // url $metadata_arr[] = '<meta itemprop="url" content="' . esc_url_raw(trailingslashit(get_bloginfo('url'))) . '" />'; // publisher // $metadata_arr[] = '<link itemprop="publisher" href="' . esc_attr( amt_get_schemaorg_entity_id('organization') ) . '" />'; // SearchAction // Scope BEGIN: SearchAction: http://schema.org/SearchAction $metadata_arr[] = '<!-- Scope BEGIN: SearchAction -->'; $metadata_arr[] = '<span itemprop="potentialAction" itemscope itemtype="http://schema.org/SearchAction">'; // target // Scope BEGIN: EntryPoint: http://schema.org/EntryPoint $metadata_arr[] = '<span itemprop="target" itemscope itemtype="http://schema.org/EntryPoint">'; // urlTemplate $metadata_arr[] = '<meta itemprop="urlTemplate" content="' . esc_url_raw(trailingslashit(get_bloginfo('url'))) . '?s={search_term}" />'; // Scope END: EntryPoint $metadata_arr[] = '</span> <!-- Scope END: EntryPoint -->'; // query-input // Scope BEGIN: PropertyValueSpecification: http://schema.org/PropertyValueSpecification $metadata_arr[] = '<span itemprop="query-input" itemscope itemtype="http://schema.org/PropertyValueSpecification">'; // valueRequired $metadata_arr[] = '<meta itemprop="valueRequired" content="True" />'; // valueName $metadata_arr[] = '<meta itemprop="valueName" content="search_term" />'; // Scope END: PropertyValueSpecification $metadata_arr[] = '</span> <!-- Scope END: PropertyValueSpecification -->'; // Scope END: SearchAction $metadata_arr[] = '</span> <!-- Scope END: SearchAction -->'; // Scope END: WebSite $metadata_arr[] = '</span> <!-- Scope END: WebSite -->'; // Front page using a static page } elseif (amt_is_static_front_page()) { if ($options['author_profile_source'] == 'frontpage') { // Author // Scope BEGIN: Person: http://schema.org/Person $metadata_arr[] = '<!-- Scope BEGIN: Person -->'; $metadata_arr[] = '<span itemprop="author" itemscope itemtype="http://schema.org/Person"' . amt_get_schemaorg_itemref('person_author') . amt_get_schemaorg_entity_id_as_itemid('person') . '>'; // Get author metatags $metadata_arr = array_merge($metadata_arr, amt_get_schemaorg_author_metatags($post->post_author, $options)); // mainEntityOfPage $metadata_arr[] = '<meta itemprop="mainEntityOfPage" content="' . esc_url_raw(trailingslashit(get_bloginfo('url'))) . '" />'; // Scope END: Person $metadata_arr[] = '</span> <!-- Scope END: Person -->'; } else { // Organization // Scope BEGIN: Organization: http://schema.org/Organization $metadata_arr[] = '<!-- Scope BEGIN: Organization -->'; //$metadata_arr[] = '<span itemprop="mainEntity" itemscope itemtype="http://schema.org/Organization"' . amt_get_schemaorg_itemref('organization') . '>'; $metadata_arr[] = '<span itemscope itemtype="http://schema.org/Organization"' . amt_get_schemaorg_itemref('organization') . amt_get_schemaorg_entity_id_as_itemid('organization') . '>'; // Get publisher/mainEntity metatags $metadata_arr = array_merge($metadata_arr, amt_get_schemaorg_publisher_metatags($options)); // mainEntityOfPage $metadata_arr[] = '<meta itemprop="mainEntityOfPage" content="' . esc_url_raw(trailingslashit(get_bloginfo('url'))) . '" />'; // Scope END: Organization $metadata_arr[] = '</span> <!-- Scope END: Organization -->'; } // WebSite // Scope BEGIN: WebSite: http://schema.org/WebSite $metadata_arr[] = '<!-- Scope BEGIN: WebSite -->'; $metadata_arr[] = '<span itemscope itemtype="http://schema.org/WebSite"' . amt_get_schemaorg_entity_id_as_itemid('website') . '>'; // name $metadata_arr[] = '<meta itemprop="name" content="' . esc_attr(get_bloginfo('name')) . '" />'; // headline - contains title information $metadata_arr['microdata:headline'] = '<meta itemprop="headline" content="' . esc_attr(amt_get_title_for_metadata($options, $post)) . '" />'; // alternateName (The WordPress tag line is used.) // TODO: use tag line. Needs feedback! //$metadata_arr[] = '<meta itemprop="name" content="' . esc_attr( get_bloginfo('name') ) . '" />'; // url $metadata_arr[] = '<meta itemprop="url" content="' . esc_url_raw(trailingslashit(get_bloginfo('url'))) . '" />'; // if ( $options['author_profile_source'] == 'frontpage' ) { // author // $metadata_arr[] = '<link itemprop="author" href="' . esc_attr( amt_get_schemaorg_entity_id('person') ) . '" />'; // } else { // publisher // $metadata_arr[] = '<link itemprop="publisher" href="' . esc_attr( amt_get_schemaorg_entity_id('organization') ) . '" />'; // } // SearchAction // Scope BEGIN: SearchAction: http://schema.org/SearchAction $metadata_arr[] = '<!-- Scope BEGIN: SearchAction -->'; $metadata_arr[] = '<span itemprop="potentialAction" itemscope itemtype="http://schema.org/SearchAction">'; // target // Scope BEGIN: EntryPoint: http://schema.org/EntryPoint $metadata_arr[] = '<span itemprop="target" itemscope itemtype="http://schema.org/EntryPoint">'; // urlTemplate $metadata_arr[] = '<meta itemprop="urlTemplate" content="' . esc_url_raw(trailingslashit(get_bloginfo('url'))) . '?s={search_term}" />'; // Scope END: EntryPoint $metadata_arr[] = '</span> <!-- Scope END: EntryPoint -->'; // query-input // Scope BEGIN: PropertyValueSpecification: http://schema.org/PropertyValueSpecification $metadata_arr[] = '<span itemprop="query-input" itemscope itemtype="http://schema.org/PropertyValueSpecification">'; // valueRequired $metadata_arr[] = '<meta itemprop="valueRequired" content="True" />'; // valueName $metadata_arr[] = '<meta itemprop="valueName" content="search_term" />'; // Scope END: PropertyValueSpecification $metadata_arr[] = '</span> <!-- Scope END: PropertyValueSpecification -->'; // Scope END: SearchAction $metadata_arr[] = '</span> <!-- Scope END: SearchAction -->'; // Scope END: WebSite $metadata_arr[] = '</span> <!-- Scope END: WebSite -->'; // Author archive } elseif (is_author()) { // Author object // NOTE: Inside the author archives `$post->post_author` does not contain the author object. // In this case the $post (get_queried_object()) contains the author object itself. // We also can get the author object with the following code. Slug is what WP uses to construct urls. // $author = get_user_by( 'slug', get_query_var( 'author_name' ) ); // Also, ``get_the_author_meta('....', $author)`` returns nothing under author archives. // Access user meta with: $author->description, $author->user_email, etc // $author = get_queried_object(); $author = $post; // Person // Scope BEGIN: Person: http://schema.org/Person $metadata_arr[] = '<!-- Scope BEGIN: Person -->'; $metadata_arr[] = '<span itemscope itemtype="http://schema.org/Person"' . amt_get_schemaorg_itemref('person_author') . '>'; // headline - contains title information $metadata_arr['microdata:headline'] = '<meta itemprop="headline" content="' . esc_attr(amt_get_title_for_metadata($options, $author)) . '" />'; // Get author metatags $metadata_arr = array_merge($metadata_arr, amt_get_schemaorg_author_metatags($author->ID, $options)); // mainEntityOfPage $metadata_arr[] = '<meta itemprop="mainEntityOfPage" content="' . esc_url(get_author_posts_url($author->ID)) . '" />'; // Scope END: Person $metadata_arr[] = '</span> <!-- Scope END: Person -->'; } // Filtering of the generated microdata for footer $metadata_arr = apply_filters('amt_schemaorg_metadata_footer', $metadata_arr); return $metadata_arr; }