/** * 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, $metadata_arr); }
function amt_add_metadata_review($post_body) { if (is_singular()) { // Get current post object $post = get_queried_object(); if (is_null($post)) { return $post_body; } // 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; } // Check if Review Mode is enabled $options = get_option("add_meta_tags_opts"); if ($options["review_mode"] == "0") { return $post_body; } // Only administrators can see the review box. if (current_user_can('create_users')) { $post_body = amt_get_metadata_review() . '<br /><br />' . $post_body; } } return $post_body; }
/** * Helper function that returns an array containing the post types * on which the Metadata metabox should be added. * * - post * - page * * And also to ALL public custom post types which have a UI. * * NOTE ABOUT attachments: * The 'attachment' post type does not support saving custom fields like other post types. * See: http://www.codetrax.org/issues/875 */ function amt_get_post_types_for_metabox() { // Get the post types supported by Add-Meta-Tags $supported_builtin_types = amt_get_supported_post_types(); // The 'attachment' post type does not support saving custom fields like // other post types. See: http://www.codetrax.org/issues/875 // So, the 'attachment' type is removed (if exists) so as not to add a metabox there. $attachment_post_type_key = array_search('attachment', $supported_builtin_types); if ($attachment_post_type_key !== false) { // Remove this type from the array unset($supported_builtin_types[$attachment_post_type_key]); } // Get public post types $public_custom_types = get_post_types(array('public' => true, '_builtin' => false, 'show_ui' => true)); $supported_types = array_merge($supported_builtin_types, $public_custom_types); // Allow filtering of the supported content types. $supported_types = apply_filters('amt_metabox_post_types', $supported_types); // Leave this filter out of the documentation for now. return $supported_types; }
function amt_internal_get_title($options, $post, $title_templates, $force_custom_title_if_set = false, $caller_is_metadata_generator = false) { // EARLY PROCESSING // First we check for a custom title whgich may have been inserted in the // relevant Custom Field of the supported types. $custom_title = ''; if (is_singular() || amt_is_static_front_page() || amt_is_static_home()) { if (!is_null($post)) { // 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())) { // Store the custom title. Should be empty for post types which do not support a custom title or which have an empty custom title. $custom_title = amt_get_post_meta_title($post->ID); //$custom_title = str_replace('%title%', $title, $custom_title); // Allow filtering of the custom title $custom_title = apply_filters('amt_custom_title', $custom_title); } } } // Early processing in case advanced title management is TURNED OFF // This early processing takes place only for calls from the 'amt_get_title_for_title_element()' function. // WordPress constructs its own titles for the 'title' HTML element, so we // do not need to do further processing and title guessing here. // This early processing is NOT performed for calls from the 'amt_get_title_for_metadata()' function, // because the metadata generators if (!$caller_is_metadata_generator && array_key_exists('enable_advanced_title_management', $options) && $options['enable_advanced_title_management'] == '0') { if (is_singular() || amt_is_static_front_page() || amt_is_static_home()) { if (!empty($custom_title)) { // Contains paging information return amt_process_paged($custom_title); } } return; } // From now on Add-Meta-Tags generates the title. // TEMPLATE VARIABLES // Set template variable values // #entity_title#, #Entity_title#, #Entity_Title#, #page#, #page_total#, #site_name#, #site_tagline#, #year#, #month#, #month_name#, #day# // Date variables // Credit for the following here: http://wordpress.stackexchange.com/a/109674 // https://developer.wordpress.org/reference/classes/wp_locale/ $var_year = 0; $var_month = 0; $var_month_name = ''; $var_day = 0; if (is_date()) { // On date archives the following have a value. On the default front page are zero $var_year = get_query_var('year'); $var_month = get_query_var('monthnum'); $var_month_name = ''; if ($var_month) { $var_month_name = $GLOBALS['wp_locale']->get_month($var_month); } $var_day = get_query_var('day'); } elseif (is_singular() || amt_is_static_front_page() || amt_is_static_home()) { $var_year = mysql2date('Y', $post->post_date); $var_month = mysql2date('m', $post->post_date); $var_month_name = ''; if ($var_month) { $var_month_name = $GLOBALS['wp_locale']->get_month($var_month); } $var_day = mysql2date('d', $post->post_date); } // #page_total# global $wp_query; $page_total = 1; if (isset($wp_query->max_num_pages)) { $page_total = $wp_query->max_num_pages; } // #page# $page = 1; // For paginated archives or paginated main page with latest posts. if (is_paged()) { $paged = get_query_var('paged'); // paged if ($paged && $paged >= 2) { $page = $paged; } // For a Post or Page that has been divided into pages using the <!--nextpage--> QuickTag } else { $paged = get_query_var('page'); // page if ($paged && $paged >= 2) { $page = $paged; } } // #site_name# $site_name = get_bloginfo('name'); // #site_tagline# $site_tagline = get_bloginfo('description'); // MAIN PROCESSING // 1) generate title, 2) determine title template // #entity_title# and $entity_title_template $entity_title = ''; $entity_title_template = ''; // Default front page displaying the latest posts if (amt_is_default_front_page()) { // Entity title // $post is NULL $entity_title = get_bloginfo('name'); // No custom title // Entity title template if (array_key_exists('enable_advanced_title_management', $options) && $options['enable_advanced_title_management'] == '1') { if ($page && $page >= 2 && array_key_exists('front_page_default_paged', $title_templates)) { $entity_title_template = $title_templates['front_page_default_paged']; } elseif (array_key_exists('front_page_default', $title_templates)) { $entity_title_template = $title_templates['front_page_default']; } } // Front page using a static page // Note: might also contain a listing of posts which may be paged, so use amt_process_paged() } elseif (amt_is_static_front_page()) { // Entity title $entity_title = strip_tags(get_the_title($post->ID)); if (!empty($custom_title) && $force_custom_title_if_set) { $custom_title = str_replace('%title%', $entity_title, $custom_title); $entity_title = $custom_title; } // Entity title template if (array_key_exists('enable_advanced_title_management', $options) && $options['enable_advanced_title_management'] == '1') { if ($page && $page >= 2 && array_key_exists('front_page_static_paged', $title_templates)) { $entity_title_template = $title_templates['front_page_static_paged']; } elseif (array_key_exists('front_page_static', $title_templates)) { $entity_title_template = $title_templates['front_page_static']; } } // The posts index page - a static page displaying the latest posts } elseif (amt_is_static_home()) { // Entity title $entity_title = strip_tags(get_the_title($post->ID)); if (!empty($custom_title) && $force_custom_title_if_set) { $custom_title = str_replace('%title%', $entity_title, $custom_title); $entity_title = $custom_title; } // Entity title template if (array_key_exists('enable_advanced_title_management', $options) && $options['enable_advanced_title_management'] == '1') { if ($page && $page >= 2 && array_key_exists('blog_index_static_paged', $title_templates)) { $entity_title_template = $title_templates['blog_index_static_paged']; } elseif (array_key_exists('blog_index_static', $title_templates)) { $entity_title_template = $title_templates['blog_index_static']; } } // Date Archives // Yearly Archive } elseif (is_year()) { // Entity title $entity_title = $var_year; // Entity title template if (array_key_exists('enable_advanced_title_management', $options) && $options['enable_advanced_title_management'] == '1') { if ($page && $page >= 2 && array_key_exists('archive_date_yearly_paged', $title_templates)) { $entity_title_template = $title_templates['archive_date_yearly_paged']; } elseif (array_key_exists('archive_date_yearly', $title_templates)) { $entity_title_template = $title_templates['archive_date_yearly']; } } // Monthly Archive } elseif (is_month()) { // Entity title $entity_title = $var_month_name; // Entity title template if (array_key_exists('enable_advanced_title_management', $options) && $options['enable_advanced_title_management'] == '1') { if ($page && $page >= 2 && array_key_exists('archive_date_monthly_paged', $title_templates)) { $entity_title_template = $title_templates['archive_date_monthly_paged']; } elseif (array_key_exists('archive_date_monthly', $title_templates)) { $entity_title_template = $title_templates['archive_date_monthly']; } } // Daily Archive } elseif (is_day()) { // Entity title $entity_title = $var_day; // Entity title template if (array_key_exists('enable_advanced_title_management', $options) && $options['enable_advanced_title_management'] == '1') { if ($page && $page >= 2 && array_key_exists('archive_date_daily_paged', $title_templates)) { $entity_title_template = $title_templates['archive_date_daily_paged']; } elseif (array_key_exists('archive_date_daily', $title_templates)) { $entity_title_template = $title_templates['archive_date_daily']; } } // Taxonomy Archive // $post is a taxonomy term object } elseif (is_category() || is_tag() || is_tax()) { // Entity title $entity_title = single_term_title($prefix = '', $display = false); // Entity title template $template_name = 'archive_taxonomy_' . $post->taxonomy; if (array_key_exists('enable_advanced_title_management', $options) && $options['enable_advanced_title_management'] == '1') { if ($page && $page >= 2 && array_key_exists($template_name . '_paged', $title_templates)) { $entity_title_template = $title_templates[$template_name . '_paged']; } elseif (array_key_exists($template_name, $title_templates)) { $entity_title_template = $title_templates[$template_name]; } } // Author Archive // $post is an author object } elseif (is_author()) { // Entity title $entity_title = $post->display_name; // Entity title template if (array_key_exists('enable_advanced_title_management', $options) && $options['enable_advanced_title_management'] == '1') { if ($page && $page >= 2 && array_key_exists('archive_author_paged', $title_templates)) { $entity_title_template = $title_templates['archive_author_paged']; } elseif (array_key_exists('archive_author', $title_templates)) { $entity_title_template = $title_templates['archive_author']; } } // Custom Post Type Archive } elseif (is_post_type_archive()) { // Entity title $entity_title = post_type_archive_title($prefix = '', $display = false); // Entity title template // $post is a content type object $template_name = 'archive_posttype_' . $post->name; if (array_key_exists('enable_advanced_title_management', $options) && $options['enable_advanced_title_management'] == '1') { if ($page && $page >= 2 && array_key_exists($template_name . '_paged', $title_templates)) { $entity_title_template = $title_templates[$template_name . '_paged']; } elseif (array_key_exists($template_name, $title_templates)) { $entity_title_template = $title_templates[$template_name]; } } // Content } elseif (is_singular()) { // Entity title // In some cases, like EDD downloads, get_the_title() also returns escaped HTML. Use strip_tags(). $entity_title = strip_tags(get_the_title($post->ID)); // Alternatively, use the_title_attribute(). See: https://codex.wordpress.org/Function_Reference/the_title_attribute //$entity_title = the_title_attribute( array( 'before'=>'', 'after'=>'', 'echo'=>false, $post->ID) ); if (!empty($custom_title) && $force_custom_title_if_set) { $custom_title = str_replace('%title%', $entity_title, $custom_title); $entity_title = $custom_title; } // Attachments if (is_attachment()) { // Attachment type $mime_type = get_post_mime_type($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); $template_name = 'content_attachment'; if (array_key_exists('content_attachment_' . $attachment_type, $title_templates)) { $template_name = 'content_attachment_' . $attachment_type; } // Entity title template if (array_key_exists('enable_advanced_title_management', $options) && $options['enable_advanced_title_management'] == '1') { // No paging info if (array_key_exists($template_name, $title_templates)) { $entity_title_template = $title_templates[$template_name]; } } // Page } elseif (is_page()) { // Entity title template if (array_key_exists('enable_advanced_title_management', $options) && $options['enable_advanced_title_management'] == '1') { if ($page && $page >= 2 && array_key_exists('content_page_paged', $title_templates)) { $entity_title_template = $title_templates['content_page_paged']; } elseif (array_key_exists('content_page', $title_templates)) { $entity_title_template = $title_templates['content_page']; } } // Posts and custom post types (with post format checking) } else { $post_type = get_post_type($post); $post_format = get_post_format($post->ID); $template_name = 'content_' . $post_type; if ($post_format !== false && array_key_exists($template_name . '_' . $post_format, $title_templates)) { $template_name = $template_name . '_' . $post_format; } // Entity title template if (array_key_exists('enable_advanced_title_management', $options) && $options['enable_advanced_title_management'] == '1') { if ($page && $page >= 2 && array_key_exists($template_name . '_paged', $title_templates)) { $entity_title_template = $title_templates[$template_name . '_paged']; } elseif (array_key_exists($template_name, $title_templates)) { $entity_title_template = $title_templates[$template_name]; } } } } // LATE PROCESSING $title = ''; // Late processing in case advanced title management is TURNED OFF // This late processing takes place only for calls from the 'amt_get_title_for_metadata()' function. // The metadata generators do not construct a title, so this has to be done here (above $entity_title). if ($caller_is_metadata_generator && array_key_exists('enable_advanced_title_management', $options) && $options['enable_advanced_title_management'] == '0') { if (!empty($entity_title)) { if ($page && $page >= 2) { $title = amt_process_paged($entity_title); } else { $title = $entity_title; } } else { // TODO: This appears in BuddyPress member pages. Maybe it should just set $title to an empty string. //$title = 'PROGRAMMING ERROR - MISSING TITLE'; $title = ''; } } elseif (empty($entity_title_template)) { // If the caller is a metadata generator, then the title cannot be determined otherwise. // So, if an $entity_title has been found we return it. if ($caller_is_metadata_generator) { // If a metadata generator requested a title, but a template was // not found, return an error message as the title, unless the // $entity_title is not empty, in which case set the title to it as is. if (!empty($entity_title)) { $title = $entity_title; } else { // TODO: Maybe it should just set $title to an empty string. //$title = 'TITLE TEMPLATE NOT FOUND'; $title = ''; } } else { // If the title was requested for the 'title' HTML element, but a template //was not found, return an empty string, so that the default WordPress title is used. // TODO: Check if still required $title = ''; } // If advanced title management is enabled } elseif (array_key_exists('enable_advanced_title_management', $options) && $options['enable_advanced_title_management'] == '1') { $template_vars = array('#year#' => $var_year, '#month#' => $var_month, '#month_name#' => $var_month_name, '#day#' => $var_day, '#page#' => $page, '#page_total#' => $page_total, '#site_name#' => $site_name, '#site_tagline#' => $site_tagline, '#entity_title#' => $entity_title, '#Entity_title#' => ucfirst(strtolower($entity_title)), '#Entity_Title#' => ucwords(strtolower($entity_title))); // Replace variables in the template foreach ($template_vars as $var_name => $var_value) { $entity_title_template = str_replace($var_name, $var_value, $entity_title_template); } $title = $entity_title_template; } return $title; }
/** * Filter function that generates and embeds Schema.org metadata in the content. */ function amt_add_schemaorg_metadata_content_filter($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; } // Get the options the DB $options = get_option("add_meta_tags_opts"); $do_auto_schemaorg = $options["auto_schemaorg"] == "1" ? true : false; if (!$do_auto_schemaorg) { return $post_body; } // Get current post object $post = get_queried_object(); $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); // Products if (amt_is_product()) { // Scope BEGIN: Product: http://schema.org/Product $metadata_arr[] = '<!-- Scope BEGIN: Product -->'; // Construct itemref attribute. Should contain a comma delimited list of IDs. $itemref = apply_filters('amt_schemaorg_itemref_product', ''); if (!empty($itemref)) { $itemref_attrib = ' itemref="' . $itemref . '"'; } else { $itemref_attrib = ''; } $metadata_arr[] = '<div itemscope itemtype="http://schema.org/Product"' . $itemref_attrib . '>'; // URL - Uses amt_get_permalink_for_multipage() $metadata_arr[] = '<meta itemprop="url" content="' . esc_url_raw(amt_get_permalink_for_multipage($post)) . '" />'; // name // Note: Contains multipage information through amt_process_paged() $metadata_arr[] = '<meta itemprop="name" content="' . esc_attr(amt_process_paged(get_the_title($post->ID))) . '" />'; // 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. $global_image_override_url = amt_get_post_meta_image_url($post->ID); if (!empty($global_image_override_url)) { $metadata_arr[] = '<!-- Scope BEGIN: ImageObject -->'; $metadata_arr[] = '<span itemprop="image" itemscope itemtype="http://schema.org/ImageObject">'; $metadata_arr[] = '<meta itemprop="contentUrl" content="' . esc_url_raw($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($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 && !empty($options["default_image_url"])) { $metadata_arr[] = '<!-- Scope BEGIN: ImageObject -->'; $metadata_arr[] = '<span itemprop="image" itemscope itemtype="http://schema.org/ImageObject">'; $metadata_arr[] = '<meta itemprop="contentUrl" content="' . esc_url_raw($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[] = $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 -->'; // Construct itemref attribute. Should contain a comma delimited list of IDs. $itemref = apply_filters('amt_schemaorg_itemref_attachment_image', ''); if (!empty($itemref)) { $itemref_attrib = ' itemref="' . $itemref . '"'; } else { $itemref_attrib = ''; } $metadata_arr[] = '<div itemscope itemtype="http://schema.org/ImageObject"' . $itemref_attrib . '>'; } elseif ('video' == $attachment_type) { // Scope BEGIN: VideoObject: http://schema.org/VideoObject $metadata_arr[] = '<!-- Scope BEGIN: VideoObject -->'; // Construct itemref attribute. Should contain a comma delimited list of IDs. $itemref = apply_filters('amt_schemaorg_itemref_attachment_video', ''); if (!empty($itemref)) { $itemref_attrib = ' itemref="' . $itemref . '"'; } else { $itemref_attrib = ''; } $metadata_arr[] = '<div itemscope itemtype="http://schema.org/VideoObject"' . $itemref_attrib . '>'; } elseif ('audio' == $attachment_type) { // Scope BEGIN: AudioObject: http://schema.org/AudioObject $metadata_arr[] = '<!-- Scope BEGIN: AudioObject -->'; // Construct itemref attribute. Should contain a comma delimited list of IDs. $itemref = apply_filters('amt_schemaorg_itemref_attachment_audio', ''); if (!empty($itemref)) { $itemref_attrib = ' itemref="' . $itemref . '"'; } else { $itemref_attrib = ''; } $metadata_arr[] = '<div itemscope itemtype="http://schema.org/AudioObject"' . $itemref_attrib . '>'; } else { // we do not currently support other attachment types, so we stop processing here return $post_body; } // Metadata commong to all attachments // Publisher // Scope BEGIN: Organization: http://schema.org/Organization $metadata_arr[] = '<!-- Scope BEGIN: Organization -->'; $metadata_arr[] = '<span itemprop="publisher" itemscope itemtype="http://schema.org/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">'; // Get author metatags $metadata_arr = array_merge($metadata_arr, amt_get_schemaorg_author_metatags($post->post_author)); // Scope END: Person $metadata_arr[] = '</span> <!-- Scope END: Person -->'; // 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))) . '" />'; // 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($post, $size = $image_size, $is_representative = true)); // Add the post body here $metadata_arr[] = $post_body; // Scope END: ImageObject $metadata_arr[] = '</div> <!-- Scope END: ImageObject -->'; } elseif ('video' == $attachment_type) { // Video specific metatags // URL (for attachments: links to attachment page) $metadata_arr[] = '<meta itemprop="url" content="' . esc_url_raw(get_permalink($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[] = $post_body; // Scope END: VideoObject $metadata_arr[] = '</div> <!-- Scope END: VideoObject -->'; } elseif ('audio' == $attachment_type) { // Audio specific metatags // URL (for attachments: links to attachment page) $metadata_arr[] = '<meta itemprop="url" content="' . esc_url_raw(get_permalink($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[] = $post_body; // Scope END: AudioObject $metadata_arr[] = '</div> <!-- Scope END: AudioObject -->'; } // 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 $express_review_field_data = amt_get_post_meta_express_review($post->ID); $review_data = array(); if (!empty($express_review_field_data)) { $review_data = amt_get_review_data($express_review_field_data); 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) . ' -->'; // Construct itemref attribute. Should contain a comma delimited list of IDs. $itemref = apply_filters('amt_schemaorg_itemref_content', ''); if (!empty($itemref)) { $itemref_attrib = ' itemref="' . $itemref . '"'; } else { $itemref_attrib = ''; } $metadata_arr[] = '<div itemscope itemtype="http://schema.org/' . esc_attr($main_content_object) . '"' . $itemref_attrib . '>'; // Publisher // Scope BEGIN: Organization: http://schema.org/Organization $metadata_arr[] = '<!-- Scope BEGIN: Organization -->'; $metadata_arr[] = '<span itemprop="publisher" itemscope itemtype="http://schema.org/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">'; // Get publisher metatags $metadata_arr = array_merge($metadata_arr, amt_get_schemaorg_author_metatags($post->post_author)); // 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)) . '" />'; // 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))) . '" />'; // name // Note: Contains multipage information through amt_process_paged() $metadata_arr[] = '<meta itemprop="name" content="' . esc_attr(amt_process_paged(get_the_title($post->ID))) . '" />'; // headline $metadata_arr[] = '<meta itemprop="headline" content="' . esc_attr(get_the_title($post->ID)) . '" />'; // 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. $global_image_override_url = amt_get_post_meta_image_url($post->ID); if (!empty($global_image_override_url)) { $metadata_arr[] = '<!-- Scope BEGIN: ImageObject -->'; $metadata_arr[] = '<span itemprop="image" itemscope itemtype="http://schema.org/ImageObject">'; $metadata_arr[] = '<meta itemprop="contentUrl" content="' . esc_url_raw($global_image_override_url) . '" />'; $metadata_arr[] = '</span> <!-- Scope END: ImageObject -->'; // Further image processing } else { // 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="associatedMedia" 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($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. $has_images = true; } // Scope END: ImageObject // Process all attachments and add metatags (featured image will be excluded) foreach ($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) { // metadata BEGIN $metadata_arr[] = '<!-- Scope BEGIN: ImageObject -->'; $metadata_arr[] = '<span itemprop="associatedMedia" 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($attachment, $size = $image_size)); // metadata END $metadata_arr[] = '</span> <!-- Scope END: ImageObject -->'; // Images have been found. $has_images = true; } elseif ('video' == $attachment_type) { // Scope BEGIN: VideoObject: http://schema.org/VideoObject $metadata_arr[] = '<!-- Scope BEGIN: VideoObject -->'; $metadata_arr[] = '<span itemprop="associatedMedia" itemscope itemtype="http://schema.org/VideoObject">'; // Video specific metatags // URL (for attachments: links to attachment page) $metadata_arr[] = '<meta itemprop="url" content="' . esc_url_raw(get_permalink($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) . '" />'; // Scope END: VideoObject $metadata_arr[] = '</span> <!-- Scope END: VideoObject -->'; } elseif ('audio' == $attachment_type) { // Scope BEGIN: AudioObject: http://schema.org/AudioObject $metadata_arr[] = '<!-- Scope BEGIN: AudioObject -->'; $metadata_arr[] = '<span itemprop="associatedMedia" itemscope itemtype="http://schema.org/AudioObject">'; // Audio specific metatags // URL (for attachments: links to attachment page) $metadata_arr[] = '<meta itemprop="url" content="' . esc_url_raw(get_permalink($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) . '" />'; // Scope END: AudioObject $metadata_arr[] = '</span> <!-- Scope END: AudioObject -->'; } } } // Embedded Media foreach ($embedded_media['images'] as $embedded_item) { // Scope BEGIN: ImageObject: http://schema.org/ImageObject $metadata_arr[] = '<!-- Scope BEGIN: ImageObject -->'; $metadata_arr[] = '<span itemprop="associatedMedia" 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 web page containing the image) $metadata_arr[] = '<meta itemprop="url" content="' . esc_url_raw($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. $has_images = true; } foreach ($embedded_media['videos'] as $embedded_item) { // 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 $metadata_arr[] = '</span> <!-- Scope END: VideoObject -->'; } foreach ($embedded_media['sounds'] as $embedded_item) { // 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 $metadata_arr[] = '</span> <!-- Scope END: AudioObject -->'; } // If no images have been found so far use the default image, if set. // Scope BEGIN: ImageObject: http://schema.org/ImageObject if ($has_images === false && !empty($options["default_image_url"])) { $metadata_arr[] = '<!-- Scope BEGIN: ImageObject -->'; $metadata_arr[] = '<span itemprop="associatedMedia" itemscope itemtype="http://schema.org/ImageObject">'; $metadata_arr[] = '<meta itemprop="contentUrl" content="' . esc_url_raw($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[] = $post_body; $metadata_arr[] = '</div> <!-- Itemprop END: ' . esc_attr($main_text_property) . ' -->'; // Now add closing tag for Article $metadata_arr[] = $closing_article_tag; } // Add our comment if (count($metadata_arr) > 0) { array_unshift($metadata_arr, "<!-- BEGIN Schema.org microdata added by Add-Meta-Tags WordPress plugin -->"); array_unshift($metadata_arr, ""); // Intentionaly left empty array_push($metadata_arr, "<!-- END Schema.org microdata added by Add-Meta-Tags WordPress plugin -->"); array_push($metadata_arr, ""); // Intentionaly left empty } //return $post_body; return implode(PHP_EOL, $metadata_arr); }
function amt_add_metadata_review($post_body) { // Only works in content pages if (!is_singular()) { return $post_body; } $options = get_option("add_meta_tags_opts"); // Only administrators can see the review box if is_singular() is true. if (amt_check_run_metadata_review_code($options)) { if (!apply_filters('amt_metadata_review_mode_enable_alternative', false)) { return $post_body; } // Get current post object $post = amt_get_queried_object(); if (is_null($post)) { return $post_body; } // 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; } $post_body = amt_get_metadata_review($options) . '<br /><br />' . $post_body; } return $post_body; }