';
// URL - Uses amt_get_permalink_for_multipage()
$metadata_arr[] = '';
// mainEntityOfPage
$metadata_arr[] = '';
// name
// Note: Contains multipage information through amt_process_paged()
$metadata_arr[] = '';
// headline - contains title information
//$metadata_arr['microdata:headline'] = '';
// 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[] = '';
}
// Dates
$metadata_arr[] = '';
// 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[] = '';
$metadata_arr[] = '';
$metadata_arr = array_merge( $metadata_arr, $image_meta_tags );
$metadata_arr[] = ' ';
}
//$global_image_override_url = amt_get_post_meta_image_url($post->ID);
//if ( ! empty( $global_image_override_url ) ) {
// $metadata_arr[] = '';
// $metadata_arr[] = '';
// $metadata_arr[] = '';
// $metadata_arr[] = '';
// $metadata_arr[] = ' ';
// 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[] = '';
$metadata_arr[] = '';
// 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[] = ' ';
// 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[] = '';
$metadata_arr[] = '';
$metadata_arr = array_merge( $metadata_arr, $image_meta_tags );
$metadata_arr[] = ' ';
}
}
//$metadata_arr[] = '';
//$metadata_arr[] = '';
//$metadata_arr[] = '';
//$metadata_arr[] = '';
//$metadata_arr[] = ' ';
}
// 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[] = '
';
// Filtering of the generated Schema.org metadata
$metadata_arr = apply_filters( 'amt_schemaorg_metadata_product', $metadata_arr );
// Add post body
// Remove last closing '' 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 ''
$metadata_arr[] = '
';
$metadata_arr['content_data'] = $post_body;
$metadata_arr[] = '
';
// 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[] = '';
$metadata_arr[] = '
';
} elseif ( 'video' == $attachment_type ) {
// Scope BEGIN: VideoObject: http://schema.org/VideoObject
$metadata_arr[] = '';
$metadata_arr[] = '
';
} elseif ( 'audio' == $attachment_type ) {
// Scope BEGIN: AudioObject: http://schema.org/AudioObject
$metadata_arr[] = '';
$metadata_arr[] = '
';
} 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[] = '';
$metadata_arr[] = '';
// Get publisher metatags
$metadata_arr = array_merge( $metadata_arr, amt_get_schemaorg_publisher_metatags( $options, $post->post_author ) );
// Scope END: Organization
$metadata_arr[] = ' ';
}
// Author
// Scope BEGIN: Person: http://schema.org/Person
$metadata_arr[] = '';
$metadata_arr[] = '';
// Get author metatags
$metadata_arr = array_merge( $metadata_arr, amt_get_schemaorg_author_metatags( $post->post_author, $options ) );
// Scope END: Person
$metadata_arr[] = ' ';
// name
$metadata_arr[] = '';
// headline - contains title information
$metadata_arr['microdata:headline'] = '';
// Description - We use the description defined by Add-Meta-Tags
$content_desc = amt_get_content_description($post);
if ( ! empty($content_desc) ) {
$metadata_arr[] = '';
}
// Dates
$metadata_arr[] = '';
$metadata_arr[] = '';
$metadata_arr[] = '';
// Language
$metadata_arr[] = '';
// 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[] = '';
// Currently we do not add a full ImageObject for the attachment's featured image.
// TODO: future
}
}
// mainEntityOfPage
$metadata_arr[] = '';
// 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[] = '
';
} elseif ( 'video' == $attachment_type ) {
// Video specific metatags
// URL (links to image file)
//$metadata_arr[] = '
';
$metadata_arr[] = '
';
// sameAs (links to attachment page)
$metadata_arr[] = '
';
$metadata_arr[] = '
';
$metadata_arr[] = '
';
// Required by Google
$metadata_arr[] = '
';
// Add the post body here
$metadata_arr['content_data'] = $post_body;
// Scope END: VideoObject
$metadata_arr[] = '
';
} elseif ( 'audio' == $attachment_type ) {
// Audio specific metatags
// URL (links to image file)
//$metadata_arr[] = '
';
$metadata_arr[] = '
';
// sameAs (links to attachment page)
$metadata_arr[] = '
';
$metadata_arr[] = '
';
$metadata_arr[] = '
';
// Add the post body here
$metadata_arr['content_data'] = $post_body;
// Scope END: AudioObject
$metadata_arr[] = '
';
}
// 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[] = '';
$metadata_arr[] = '
';
// 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[] = '';
$metadata_arr[] = '';
// Get publisher metatags
$metadata_arr = array_merge( $metadata_arr, amt_get_schemaorg_publisher_metatags( $options, $post->post_author ) );
// Scope END: Organization
$metadata_arr[] = ' ';
}
// Author
// Scope BEGIN: Person: http://schema.org/Person
$metadata_arr[] = '';
$metadata_arr[] = '';
// Get publisher metatags
$metadata_arr = array_merge( $metadata_arr, amt_get_schemaorg_author_metatags( $post->post_author, $options ) );
// Scope END: Person
$metadata_arr[] = ' ';
// URL - Uses amt_get_permalink_for_multipage()
$metadata_arr[] = '';
// mainEntityOfPage
$metadata_arr[] = '';
// Dates
$metadata_arr[] = '';
$metadata_arr[] = '';
$metadata_arr[] = '';
// Language
$metadata_arr[] = '';
// name
// Note: Contains multipage information through amt_process_paged()
$metadata_arr[] = '';
// headline - contains title information
$metadata_arr['microdata:headline'] = '';
// 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[] = '';
}
/*
// 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[] = '';
}
*/
// 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[] = '';
}
}
}
// Add review properties if Review
if ( $main_content_object == 'Review' ) {
$metadata_arr[] = '';
$metadata_arr[] = amt_get_review_info_box( $review_data );
$metadata_arr[] = '';
}
// Keywords - We use the keywords defined by Add-Meta-Tags
$keywords = amt_get_content_keywords($post);
if (!empty($keywords)) {
$metadata_arr[] = '';
}
// 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[] = '';
}
}
// 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[] = '';
$metadata_arr[] = '';
$metadata_arr = array_merge( $metadata_arr, $image_meta_tags );
$metadata_arr[] = ' ';
}
//$global_image_override_url = amt_get_post_meta_image_url($post->ID);
//if ( ! empty( $global_image_override_url ) ) {
// $metadata_arr[] = '';
// $metadata_arr[] = '';
// $metadata_arr[] = '';
// $metadata_arr[] = '';
// $metadata_arr[] = ' ';
// 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[] = '';
// 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[] = '';
$metadata_arr[] = '';
// 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[] = ' ';
// 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[] = '';
$metadata_arr[] = '';
// 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[] = ' ';
// 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[] = '';
$metadata_arr[] = '';
// Video specific metatags
// URL (links to image file)
//$metadata_arr[] = '';
$metadata_arr[] = '';
// sameAs (links to attachment page)
$metadata_arr[] = '';
$metadata_arr[] = '';
$metadata_arr[] = '';
// name
$metadata_arr[] = '';
// Description - We use the description defined by Add-Meta-Tags
$content_desc = amt_get_content_description($attachment);
if ( ! empty($content_desc) ) {
$metadata_arr[] = '';
}
// 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[] = '';
// Currently we do not add a full ImageObject for the attachment's featured image.
// TODO: future
}
// uploadDate
$metadata_arr[] = '';
// Scope END: VideoObject
$metadata_arr[] = ' ';
// Increase video counter
$vc++;
} elseif ( 'audio' == $attachment_type && $ac < $audio_limit ) {
// Scope BEGIN: AudioObject: http://schema.org/AudioObject
$metadata_arr[] = '';
$metadata_arr[] = '';
// Audio specific metatags
// URL (links to image file)
//$metadata_arr[] = '';
$metadata_arr[] = '';
// sameAs (links to attachment page)
$metadata_arr[] = '';
$metadata_arr[] = '';
$metadata_arr[] = '';
// name
$metadata_arr[] = '';
// Description - We use the description defined by Add-Meta-Tags
$content_desc = amt_get_content_description($attachment);
if ( ! empty($content_desc) ) {
$metadata_arr[] = '';
}
// 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[] = '';
// Currently we do not add a full ImageObject for the attachment's featured image.
// TODO: future
}
// uploadDate
$metadata_arr[] = '';
// Scope END: AudioObject
$metadata_arr[] = ' ';
// 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[] = '';
$metadata_arr[] = '';
// name (title)
$metadata_arr[] = '';
// caption
$metadata_arr[] = '';
// alt
$metadata_arr[] = '';
// URL (links to image file)
//$metadata_arr[] = '';
$metadata_arr[] = '';
// sameAs (links to attachment page)
$metadata_arr[] = '';
// thumbnail url
$metadata_arr[] = '';
// main image
$metadata_arr[] = '';
if ( apply_filters( 'amt_extended_image_tags', true ) ) {
$metadata_arr[] = '';
$metadata_arr[] = '';
$metadata_arr[] = '';
}
// embedURL
$metadata_arr[] = '';
// Scope END: ImageObject
$metadata_arr[] = ' ';
// 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[] = '';
$metadata_arr[] = '';
// Video Embed URL
$metadata_arr[] = '';
// playerType
$metadata_arr[] = '';
// size
$metadata_arr[] = '';
$metadata_arr[] = '';
// Scope END: VideoObject
$metadata_arr[] = ' ';
// 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[] = '';
$metadata_arr[] = '';
// Audio Embed URL
$metadata_arr[] = '';
// playerType
$metadata_arr[] = '';
// Scope END: AudioObject
$metadata_arr[] = ' ';
// 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[] = '';
$metadata_arr[] = '';
$metadata_arr = array_merge( $metadata_arr, $image_meta_tags );
$metadata_arr[] = ' ';
}
}
//$metadata_arr[] = '';
//$metadata_arr[] = '';
//$metadata_arr[] = '';
//$metadata_arr[] = '';
//$metadata_arr[] = ' ';
}
// 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[] = '
';
// 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 '' 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[] = '
';
$metadata_arr['content_data'] = $post_body;
$metadata_arr[] = '
';
// 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( '', (microtime(true) - $t) * 1000, $is_cached ) );
}
if ( $options["omit_vendor_html_comments"] == "0" ) {
array_unshift( $metadata_arr, "" );
}
array_unshift( $metadata_arr, "" ); // Intentionaly left empty
if ( $options["omit_vendor_html_comments"] == "0" ) {
array_push( $metadata_arr, "" );
}
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'] = ' ';
}
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_filter('the_content', 'amt_add_schemaorg_metadata_content_filter', 500, 1);
// Changed priority to 9999
add_filter('the_content', 'amt_add_schemaorg_metadata_content_filter', 9999, 1);
/**
* Return an array of Schema.org metatags for the provided $image object.
* By default, returns metadata for the 'medium' sized version of the image.
*/
function amt_get_schemaorg_image_metatags( $options, $image_data, $size='medium', $is_representative=false ) {
//
// $image_data can be:
//
// 1. An array with the following data:
//
// 'id' => null, // post ID of attachment
// 'url' => null,
// 'width' => null,
// 'height' => null,
// 'type' => null,
//
// 2. An attachment ID (integer)
//
// 3. An attachment object (post object) (Usually ths is the case in the schema.org generators
//
$metadata_arr = array();
$image = null;
if ( is_array($image_data) && ! is_null($image_data['url']) ) {
// Here we process the image data as retrieved from the special notation of the image's URL.
// No size information is taken into account in this case.
// Image tags
$metadata_arr[] = '
';
$metadata_arr[] = '
';
if ( apply_filters( 'amt_extended_image_tags', true ) ) {
if ( ! is_null($image_data['width']) ) {
$metadata_arr[] = '
';
}
if ( ! is_null($image_data['height']) ) {
$metadata_arr[] = '
';
}
if ( ! is_null($image_data['type']) ) {
$metadata_arr[] = '
';
}
}
return $metadata_arr;
} elseif ( is_array($image_data) && is_numeric($image_data['id']) ) {
// The attachment ID exists in the array's 'id' item.
$image = get_post( absint( $image_data['id'] ) );
} elseif ( is_numeric($image_data) ) {
// Image data is the attachment ID (integer)
$image = get_post( absint( $image_data ) );
} elseif ( is_object($image_data) && isset($image_data->ID) ) {
// Image data is the attachment itself.
$image = $image_data;
}
if ( is_null($image) || ! is_object($image) || ! isset($image->ID) ) {
return $metadata_arr;
}
// Process the image attachment and generate meta tags.
// Get the image object <- Already have it
//$image = get_post( $post_id );
// Data for image attachments
$image_meta = wp_get_attachment_metadata( $image->ID ); // contains info about all sizes
// We use wp_get_attachment_image_src() since it constructs the URLs
$thumbnail_meta = wp_get_attachment_image_src( $image->ID , 'thumbnail' );
$main_size_meta = wp_get_attachment_image_src( $image->ID , $size );
// name (title)
$metadata_arr[] = '
';
// OLD name (title)
//$image_title = sanitize_text_field( $image->post_title );
//if ( ! empty( $image_title ) ) {
// $metadata_arr[] = '
';
//}
// URL (links to image file)
//$metadata_arr[] = '
';
$metadata_arr[] = '
';
// sameAS (links to attachment page)
$metadata_arr[] = '
';
// Description (generated from $image->post_content. See: amt_get_the_excerpt()
$image_description = amt_get_content_description($image);
if ( ! empty( $image_description ) ) {
$metadata_arr[] = '
';
}
// thumbnail url
$metadata_arr[] = '
';
// main image
$metadata_arr[] = '
';
if ( apply_filters( 'amt_extended_image_tags', true ) ) {
$metadata_arr[] = '
';
$metadata_arr[] = '
';
$metadata_arr[] = '
';
}
// caption
// Here we sanitize the provided description for safety
$image_caption = sanitize_text_field( $image->post_excerpt );
if ( ! empty( $image_caption ) ) {
$metadata_arr[] = '
';
}
// alt
// Here we sanitize the provided description for safety
$image_alt = sanitize_text_field( get_post_meta( $image->ID, '_wp_attachment_image_alt', true ) );
if ( ! empty( $image_alt ) ) {
$metadata_arr[] = '
';
}
if ( $is_representative === true ) {
// representativeOfPage - Boolean - Indicates whether this image is representative of the content of the page.
$metadata_arr[] = '
';
}
return $metadata_arr;
}
/**
* Return an array of Schema.org metatags suitable for the publisher object of
* the content. Accepts the $post object as argument.
*/
function amt_get_schemaorg_publisher_metatags( $options, $author_id=null ) {
$metadata_arr = array();
// name
$metadata_arr[] = '
';
// description
// First use the site description from the Add-Meta-Tags settings
$site_description = amt_get_site_description($options);
if ( empty($site_description) ) {
// Alternatively, use the blog description
// Here we sanitize the provided description for safety
$site_description = sanitize_text_field( amt_sanitize_description( get_bloginfo('description') ) );
}
if ( ! empty($site_description) ) {
$metadata_arr[] = '
';
}
// logo
$image_data = amt_get_default_image_data();
if ( ! empty($image_data) ) {
$image_size = apply_filters( 'amt_image_size_index', 'full' );
$image_meta_tags = amt_get_schemaorg_image_metatags( $options, $image_data, $size=$image_size );
if ( ! empty($image_meta_tags) ) {
$metadata_arr[] = '';
$metadata_arr[] = '
';
// name (title)
$metadata_arr[] = '';
// caption
//$metadata_arr[] = '';
// alt
$metadata_arr[] = '';
// URL (links to web page containing the image)
//$metadata_arr[] = '';
// thumbnail url
//$metadata_arr[] = '';
//$metadata_arr[] = '';
$metadata_arr = array_merge( $metadata_arr, $image_meta_tags );
$metadata_arr[] = ' ';
}
}
////$metadata_arr[] = '';
//if ( apply_filters( 'amt_extended_image_tags', true ) ) {
// $metadata_arr[] = '';
// $metadata_arr[] = '';
// $metadata_arr[] = '';
//}
// Scope END: ImageObject
//$metadata_arr[] = ' ';
// url
// The blog url is used by default. Google+, Facebook and Twitter profile URLs are added as sameAs.
$metadata_arr[] = '
';
// sameAs
// Social Profile Links are added as sameAs properties
// By default, those of the Publisher Settings are used.
// WARNING: Publisher profile URLs from the user profile page are now deprecated.
// Google+ Publisher
if ( ! empty($options['social_main_googleplus_publisher_profile_url']) ) {
$metadata_arr[] = '
';
}
// Facebook
if ( ! empty($options['social_main_facebook_publisher_profile_url']) ) {
$metadata_arr[] = '
';
}
// Twitter
if ( ! empty($options['social_main_twitter_publisher_username']) ) {
$metadata_arr[] = '
';
}
// Allow filtering of the Publisher meta tags
$metadata_arr = apply_filters( 'amt_schemaorg_publisher_extra', $metadata_arr );
return $metadata_arr;
}
/**
* Return an array of Schema.org metatags suitable for the author object of
* the content. Accepts the $post object as argument.
*/
function amt_get_schemaorg_author_metatags( $author_id, $options ) {
//$author_obj = get_user_by( 'id', $author_id );
$metadata_arr = array();
// name
$display_name = get_the_author_meta('display_name', $author_id);
$metadata_arr[] = '
';
// description
// Here we sanitize the provided description for safety
$author_description = sanitize_text_field( amt_sanitize_description( get_the_author_meta('description', $author_id) ) );
if ( !empty($author_description) ) {
$metadata_arr[] = '
';
}
// Profile Image
// First use the global image override URL
$image_data = amt_get_image_data( amt_get_user_meta_image_url( $author_id ) );
if ( ! empty($image_data) ) {
$image_size = apply_filters( 'amt_image_size_index', 'full' );
$image_meta_tags = amt_get_schemaorg_image_metatags( $options, $image_data, $size=$image_size );
if ( ! empty($image_meta_tags) ) {
$metadata_arr[] = '';
$metadata_arr[] = '
';
$metadata_arr = array_merge( $metadata_arr, $image_meta_tags );
$metadata_arr[] = ' ';
}
} else {
$author_email = sanitize_email( get_the_author_meta('user_email', $author_id) );
$avatar_size = apply_filters( 'amt_avatar_size', 128 );
$avatar_url = '';
// First try to get the avatar link by using get_avatar().
// Important: for this to work the "Show Avatars" option should be enabled in Settings > Discussion.
$avatar_img = get_avatar( get_the_author_meta('ID', $author_id), $avatar_size, '', get_the_author_meta('display_name', $author_id) );
if ( ! empty($avatar_img) ) {
if ( preg_match("#src=['\"]([^'\"]+)['\"]#", $avatar_img, $matches) ) {
$avatar_url = $matches[1];
}
} elseif ( ! empty($author_email) ) {
// If the user has provided an email, we use it to construct a gravatar link.
$avatar_url = "http://www.gravatar.com/avatar/" . md5( $author_email ) . "?s=" . $avatar_size;
}
if ( ! empty($avatar_url) ) {
//$avatar_url = html_entity_decode($avatar_url, ENT_NOQUOTES, 'UTF-8');
//$metadata_arr[] = '
';
$image_data = amt_get_image_data( sprintf('%s,%dx%d', $avatar_url, $avatar_size, $avatar_size) );
if ( ! empty($image_data) ) {
$image_size = apply_filters( 'amt_image_size_index', 'full' );
$image_meta_tags = amt_get_schemaorg_image_metatags( $options, $image_data, $size=$image_size );
if ( ! empty($image_meta_tags) ) {
$metadata_arr[] = '';
$metadata_arr[] = '
';
$metadata_arr = array_merge( $metadata_arr, $image_meta_tags );
$metadata_arr[] = ' ';
}
}
}
}
// url
// The URL to the author archive is added as the url.
//$metadata_arr[] = '
';
$metadata_arr[] = '
';
// sameAs
// Social Profile Links are added as sameAs properties
// Those from the WordPress User Profile page are used.
// Google+ Author
$googleplus_author_url = get_the_author_meta('amt_googleplus_author_profile_url', $author_id);
if ( !empty($googleplus_author_url) ) {
$metadata_arr[] = '
';
}
// Facebook
$facebook_author_url = get_the_author_meta('amt_facebook_author_profile_url', $author_id);
if ( !empty($facebook_author_url) ) {
$metadata_arr[] = '
';
}
// Twitter
$twitter_author_username = get_the_author_meta('amt_twitter_author_username', $author_id);
if ( !empty($twitter_author_username) ) {
$metadata_arr[] = '
';
}
// The User URL as set by the user in the WordPress User Profile page.
$user_url = get_the_author_meta( 'user_url', $author_id );
if ( !empty($user_url) ) {
$metadata_arr[] = '
';
}
// Allow filtering of the Author meta tags
$metadata_arr = apply_filters( 'amt_schemaorg_author_extra', $metadata_arr, $author_id );
return $metadata_arr;
}
// Schema.org metadata generator for comments
// Use with:
// add_filter( 'comment_text', 'wwwmonk_comment_schemaorg_metadata', 99999, 1 );
function amt_add_schemaorg_metadata_comment_filter( $comment_text ) {
global $post, $comment;
$options = amt_get_options();
if ( $options["omit_vendor_html_comments"] == "0" ) {
$metadata_arr[] = '';
}
$metadata_arr[] = '';
$metadata_arr[] = '
';
// Comment Author
$metadata_arr[] = '';
$metadata_arr[] = '
';
// name
$metadata_arr[] = '';
// url
if ( ! empty( $comment->comment_author_url ) ) {
// $metadata_arr[] = '';
}
// gravatar
if ( ! empty( $comment->comment_author_email ) ) {
// Contruct gravatar link
$gravatar_url = "http://www.gravatar.com/avatar/" . md5( $comment->comment_author_email ) . "?s=" . 44;
$metadata_arr[] = '';
}
// END
$metadata_arr[] = ' ';
$metadata_arr[] = '
';
$metadata_arr[] = '
';
$metadata_arr[] = '
';
$metadata_arr[] = '
';
$metadata_arr[] = $comment_text;
$metadata_arr[] = '
';
$metadata_arr[] = '
';
if ( $options["omit_vendor_html_comments"] == "0" ) {
$metadata_arr[] = '';
}
// Allow filtering of the generated metadata
$metadata_arr = apply_filters( 'amt_schemaorg_comments_extra', $metadata_arr, $post, $comment );
return PHP_EOL . implode(PHP_EOL, $metadata_arr) . PHP_EOL . PHP_EOL;
//return implode( '', $metadata_arr );
}
/**
* JSON-LD Schema.org Generator
* ============================
*/
/**
* Add Schema.org Microdata in the footer.
*
* Mainly used to embed microdata to front page, posts index page and archives.
*/
function amt_add_jsonld_schemaorg_metadata_head( $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"] == "0" ) {
// Here we check for AMP page https://www.ampproject.org/
// For AMP pages, if the Schema.org microdata generator has been enabled,
// we enforce the JSON+LD form instead of microdata.
if ( $do_auto_schemaorg && function_exists('is_amp_endpoint') && is_amp_endpoint() ) {
// Do nothing and let it proceed with forced generation of JSON+LD Schema.org metadata.
} else {
return array();
}
}
$metadata_arr = array();
// Context
$metadata_arr['@context'] = 'http://schema.org';
// TODO: Check if this is_paged() check is needed. If removed, make sure that titles and descriptions are passed through multipage function.
if ( is_paged() ) {
//
// Currently we do not support adding Schema.org metadata on
// paged archives, if page number is >=2
//
// NOTE: This refers to an archive or the main page being split up over
// several pages, this does not refer to a Post or Page whose content
// has been divided into pages using the QuickTag.
//
// Multipage content IS processed below.
//
return array();
}
// Custom content override
if ( amt_is_custom($post, $options) ) {
// Return metadata with:
// add_filter( 'amt_custom_metadata_jsonld_schemaorg', 'my_function', 10, 5 );
// Return an array of meta tags. Array item format: ['key_can_be_whatever'] = '
'
$metadata_arr = apply_filters( 'amt_custom_metadata_jsonld_schemaorg', $metadata_arr, $post, $options, $attachments, $embedded_media );
// Default fron tpage displaying the latest posts.
} elseif ( amt_is_default_front_page() ) {
// On the front page we are adding two top level entities, so we remove
// the existing context, as the entities need to be in an array and each
// array item needs its own context.
unset( $metadata_arr['@context'] );
// 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.
//
$organization_arr = array();
// Context
$organization_arr['@context'] = 'http://schema.org';
// ID
$organization_arr['@id'] = amt_get_schemaorg_entity_id('organization');
$organization_arr = array_merge($organization_arr, amt_get_jsonld_schemaorg_publisher_array($options));
// mainEntityOfPage
$organization_arr['mainEntityOfPage'] = esc_url( trailingslashit( get_bloginfo('url') ) );
// Get publisher/mainEntity metatags
// $metadata_arr = array_merge( $metadata_arr, amt_get_schemaorg_publisher_metatags( $options ) );
// WebSite
$website_arr = array();
// Context
$website_arr['@context'] = 'http://schema.org';
// ID
$website_arr['@id'] = amt_get_schemaorg_entity_id('website');
// Type
$website_arr['@type'] = 'WebSite';
// name
$website_arr['name'] = esc_attr( get_bloginfo('name') );
// headline - contains title information
$website_arr['headline'] = esc_attr( amt_get_title_for_metadata($options, $post) );
// alternateName (The WordPress tag line is used.)
// TODO: use tag line. Needs feedback!
// url
$website_arr['url'] = esc_url_raw( trailingslashit( get_bloginfo('url') ) );
// publisher
// $website_arr['publisher'] = array( '@id' => esc_attr(amt_get_schemaorg_entity_id('organization') ) );
// SearchAction
// Scope BEGIN: SearchAction: http://schema.org/SearchAction
// $metadata_arr[] = '';
// $metadata_arr[] = '
';
$website_arr['potentialAction'] = array();
$website_arr['potentialAction']['@type'] = 'SearchAction';
// target
// Scope BEGIN: EntryPoint: http://schema.org/EntryPoint
$website_arr['potentialAction']['target'] = array();
$website_arr['potentialAction']['target']['@type'] = 'EntryPoint';
// urlTemplate
$website_arr['potentialAction']['target']['urlTemplate'] = esc_url_raw( trailingslashit( get_bloginfo('url') ) ) . '?s={search_term}';
// Scope END: EntryPoint
// $metadata_arr[] = ' ';
// query-input
// Scope BEGIN: PropertyValueSpecification: http://schema.org/PropertyValueSpecification
//$metadata_arr[] = '
';
$website_arr['potentialAction']['query-input'] = array();
$website_arr['potentialAction']['query-input']['@type'] = 'PropertyValueSpecification';
// valueRequired
$website_arr['potentialAction']['query-input']['valueRequired'] = 'True';
// valueName
$website_arr['potentialAction']['query-input']['valueName'] = 'search_term';
// Scope END: PropertyValueSpecification
// $metadata_arr[] = ' ';
// Scope END: SearchAction
// $metadata_arr[] = ' ';
// Scope END: WebSite
// $metadata_arr[] = ' ';
$metadata_arr = array( $organization_arr, $website_arr );
// Front page using a static page
} elseif ( amt_is_static_front_page() ) {
// On the front page we are adding two top level entities, so we remove
// the existing context, as the entities need to be in an array and each
// array item needs its own context.
unset( $metadata_arr['@context'] );
$main_entity_arr = array();
// Context
$main_entity_arr['@context'] = 'http://schema.org';
if ( $options['author_profile_source'] == 'frontpage' ) {
// ID
$main_entity_arr['@id'] = amt_get_schemaorg_entity_id('person');
// Author
// Scope BEGIN: Person: http://schema.org/Person
// $metadata_arr[] = '';
// $metadata_arr[] = '
';
// Get author metatags
$main_entity_arr = array_merge($main_entity_arr, amt_get_jsonld_schemaorg_author_array( $post->post_author, $options ));
// mainEntityOfPage
$main_entity_arr['mainEntityOfPage'] = esc_url( trailingslashit( get_bloginfo('url') ) );
// Scope END: Person
// $metadata_arr[] = ' ';
} else {
// ID
$main_entity_arr['@id'] = amt_get_schemaorg_entity_id('organization');
// Organization
$main_entity_arr = array_merge($main_entity_arr, amt_get_jsonld_schemaorg_publisher_array($options));
// mainEntityOfPage
$main_entity_arr['mainEntityOfPage'] = esc_url( trailingslashit( get_bloginfo('url') ) );
// Get publisher/mainEntity metatags
// $metadata_arr = array_merge( $metadata_arr, amt_get_schemaorg_publisher_metatags( $options ) );
}
// WebSite
$website_arr = array();
// Context
$website_arr['@context'] = 'http://schema.org';
// ID
$website_arr['@id'] = amt_get_schemaorg_entity_id('website');
// Type
$website_arr['@type'] = 'WebSite';
// name
$website_arr['name'] = esc_attr( get_bloginfo('name') );
// headline - contains title information
$website_arr['headline'] = esc_attr( amt_get_title_for_metadata($options, $post) );
// alternateName (The WordPress tag line is used.)
// TODO: use tag line. Needs feedback!
// url
$website_arr['url'] = esc_url_raw( trailingslashit( get_bloginfo('url') ) );
// if ( $options['author_profile_source'] == 'frontpage' ) {
// author
//$website_arr['author'] = array( '@id' => esc_attr(amt_get_schemaorg_entity_id('person') ) );
// } else {
// publisher
//$website_arr['publisher'] = array( '@id' => esc_attr(amt_get_schemaorg_entity_id('organization') ) );
// }
// SearchAction
// Scope BEGIN: SearchAction: http://schema.org/SearchAction
// $metadata_arr[] = '';
// $metadata_arr[] = '
';
$website_arr['potentialAction'] = array();
$website_arr['potentialAction']['@type'] = 'SearchAction';
// target
// Scope BEGIN: EntryPoint: http://schema.org/EntryPoint
$website_arr['potentialAction']['target'] = array();
$website_arr['potentialAction']['target']['@type'] = 'EntryPoint';
// urlTemplate
$website_arr['potentialAction']['target']['urlTemplate'] = esc_url_raw( trailingslashit( get_bloginfo('url') ) ) . '?s={search_term}';
// Scope END: EntryPoint
// $metadata_arr[] = ' ';
// query-input
// Scope BEGIN: PropertyValueSpecification: http://schema.org/PropertyValueSpecification
//$metadata_arr[] = '
';
$website_arr['potentialAction']['query-input'] = array();
$website_arr['potentialAction']['query-input']['@type'] = 'PropertyValueSpecification';
// valueRequired
$website_arr['potentialAction']['query-input']['valueRequired'] = 'True';
// valueName
$website_arr['potentialAction']['query-input']['valueName'] = 'search_term';
// Scope END: PropertyValueSpecification
// $metadata_arr[] = ' ';
// Scope END: SearchAction
// $metadata_arr[] = ' ';
// Scope END: WebSite
// $metadata_arr[] = ' ';
$metadata_arr = array( $main_entity_arr, $website_arr );
// Author archive
} elseif ( is_author() ) {
// Author object
// NOTE: Inside the author archives `$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[] = '';
// $metadata_arr[] = '
';
$metadata_arr['@type'] = 'Person';
// headline - contains title information
// NOTE: Not supported for person
//$metadata_arr['headline'] = 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 ) );
$metadata_arr = array_merge( $metadata_arr, amt_get_jsonld_schemaorg_author_array( $author->ID, $options ) );
// mainEntityOfPage
$metadata_arr['mainEntityOfPage'] = esc_url( get_author_posts_url( $author->ID ) );
// Scope END: Person
// $metadata_arr[] = ' ';
}
// Products
elseif ( amt_is_product() ) {
// Scope BEGIN: Product: http://schema.org/Product
// $metadata_arr[] = '';
// $metadata_arr[] = '
';
// Schema.org type
$metadata_arr['@type'] = 'Product';
// ID
$metadata_arr['@id'] = amt_get_schemaorg_entity_id('product');
// URL - Uses amt_get_permalink_for_multipage()
$metadata_arr['url'] = esc_url_raw( amt_get_permalink_for_multipage($post) );
// mainEntityOfPage
$metadata_arr['mainEntityOfPage'] = esc_url( amt_get_permalink_for_multipage($post) );
// name
// Note: Contains multipage information through amt_process_paged()
$metadata_arr['name'] = esc_attr( amt_process_paged( strip_tags( get_the_title($post->ID) ) ) );
// headline - contains title information
//$metadata_arr['headline'] = esc_attr( amt_get_title_for_metadata($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.
// // TODO: ERROR here $post_body var does not exist
// $content_desc = sanitize_text_field( amt_sanitize_description( $post_body ) );
//}
if ( ! empty($content_desc) ) {
$metadata_arr['description'] = esc_attr( amt_process_paged( $content_desc ) );
}
// Dates
$metadata_arr['releaseDate'] = esc_attr( amt_iso8601_date($post->post_date) );
// Images
$metadata_arr['image'] = array();
// 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_array = amt_get_jsonld_schemaorg_image_array( $options, $image_data, $size=$image_size );
if ( ! empty($image_meta_array) ) {
$metadata_arr['image'] = array();
$metadata_arr['image'][] = $image_meta_array;
}
//$global_image_override_url = amt_get_post_meta_image_url($post->ID);
//if ( ! empty( $global_image_override_url ) ) {
// $metadata_arr[] = '';
// $metadata_arr[] = '';
// $current_image_obj = array();
// $current_image_obj['@type'] = 'ImageObject';
// $current_image_obj['url'] = esc_url_raw( $global_image_override_url );
// $current_image_obj['contentUrl'] = esc_url_raw( $global_image_override_url );
// $metadata_arr['image'][] = $current_image_obj;
// $metadata_arr[] = ' ';
// 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[] = '';
// $metadata_arr[] = '';
// Allow filtering of the image size.
$image_size = apply_filters( 'amt_image_size_product', 'full' );
// Get image metatags.
$metadata_arr['image'][] = amt_get_jsonld_schemaorg_image_array( $options, $image, $size=$image_size );
// metadata END
// $metadata_arr[] = ' ';
// 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_array = amt_get_jsonld_schemaorg_image_array( $options, $image_data, $size=$image_size );
if ( ! empty($image_meta_array) ) {
$metadata_arr['image'] = array();
$metadata_arr['image'][] = $image_meta_array;
}
}
// $metadata_arr[] = '';
// $metadata_arr[] = '';
//$current_image_obj = array();
//$current_image_obj['@type'] = 'ImageObject';
//$current_image_obj['url'] = esc_url_raw( $options["default_image_url"] );
//$current_image_obj['contentUrl'] = esc_url_raw( $options["default_image_url"] );
//$metadata_arr['image'][] = $current_image_obj;
// $metadata_arr[] = ' ';
}
// 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_jsonld_schemaorg', $metadata_arr, $post );
// Scope END: Product
// $metadata_arr[] = '
';
// Filtering of the generated Schema.org metadata
$metadata_arr = apply_filters( 'amt_jsonld_schemaorg_metadata_product', $metadata_arr );
// Add post body
// Remove last closing '
'
// $metadata_arr[] = '
';
// $metadata_arr[] = $post_body;
// $metadata_arr[] = '
';
// 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[] = '';
// $metadata_arr[] = '
';
} elseif ( 'video' == $attachment_type ) {
// Scope BEGIN: VideoObject: http://schema.org/VideoObject
// $metadata_arr[] = '';
// $metadata_arr[] = '
';
// Schema.org type
$metadata_arr['@type'] = 'VideoObject';
} elseif ( 'audio' == $attachment_type ) {
// Scope BEGIN: AudioObject: http://schema.org/AudioObject
// $metadata_arr[] = '';
// $metadata_arr[] = '
';
// Schema.org type
$metadata_arr['@type'] = 'AudioObject';
} else {
// we do not currently support other attachment types, so we stop processing here
return array();
}
// 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[] = '';
// $metadata_arr[] = '';
// Get publisher metatags
// $metadata_arr = array_merge( $metadata_arr, amt_get_schemaorg_publisher_metatags( $options, $post->post_author ) );
$metadata_arr['publisher'] = amt_get_jsonld_schemaorg_publisher_array($options, $post->post_author);
// Scope END: Organization
// $metadata_arr[] = ' ';
}
// Author
// Scope BEGIN: Person: http://schema.org/Person
// $metadata_arr[] = '';
// $metadata_arr[] = '';
// Get author metatags
$metadata_arr['author'] = amt_get_jsonld_schemaorg_author_array( $post->post_author, $options );
// Scope END: Person
// $metadata_arr[] = ' ';
// name
$metadata_arr['name'] = esc_attr( strip_tags( get_the_title($post->ID) ) );
// headline - contains title information
$metadata_arr['headline'] = esc_attr( amt_get_title_for_metadata($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['description'] = esc_attr( $content_desc );
}
// Dates
$metadata_arr['datePublished'] = esc_attr( amt_iso8601_date($post->post_date) );
$metadata_arr['dateModified'] = esc_attr( amt_iso8601_date($post->post_modified) );
$metadata_arr['copyrightYear'] = esc_attr( mysql2date('Y', $post->post_date) );
// Language
$metadata_arr['inLanguage'] = esc_attr( str_replace('-', '_', amt_get_language_content($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['thumbnailUrl'] = 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['mainEntityOfPage'] = 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_jsonld_schemaorg_image_array( $options, $post, $size=$image_size, $is_representative=true ) );
// Add the post body here
// $metadata_arr[] = $post_body;
// Scope END: ImageObject
// $metadata_arr[] = '
';
} elseif ( 'video' == $attachment_type ) {
// Video specific metatags
// URL (links to image file)
//$metadata_arr['url'] = esc_url_raw( get_permalink( $post->ID ) );
$metadata_arr['url'] = esc_url_raw( wp_get_attachment_url($post->ID) );
// sameAs (links to attachment page)
$metadata_arr['sameAs'] = esc_url_raw( get_permalink( $post->ID ) );
$metadata_arr['contentUrl'] = esc_url_raw( wp_get_attachment_url($post->ID) );
$metadata_arr['encodingFormat'] = esc_attr( $mime_type );
// Required by Google
$metadata_arr['uploadDate'] = esc_attr( amt_iso8601_date($post->post_date) );
// Add the post body here
// $metadata_arr[] = $post_body;
// Scope END: VideoObject
// $metadata_arr[] = '
';
} elseif ( 'audio' == $attachment_type ) {
// Audio specific metatags
// URL (links to image file)
//$metadata_arr['url'] = esc_url_raw( get_permalink( $post->ID ) );
$metadata_arr['url'] = esc_url_raw( wp_get_attachment_url($post->ID) );
// sameAs (links to attachment page)
$metadata_arr['sameAs'] = esc_url_raw( get_permalink( $post->ID ) );
$metadata_arr['contentUrl'] = esc_url_raw( wp_get_attachment_url($post->ID) );
$metadata_arr['encodingFormat'] = esc_attr( $mime_type );
// Add the post body here
// $metadata_arr[] = $post_body;
// Scope END: AudioObject
// $metadata_arr[] = '
';
}
// Filtering of the generated Schema.org metadata
$metadata_arr = apply_filters( 'amt_jsonld_schemaorg_metadata_attachment', $metadata_arr );
// Content
// Posts, pages, custom content types (attachments excluded, caught in previous clause)
// Note: content might be multipage. Process with amt_process_paged() wherever needed.
} elseif ( is_singular() ) {
// 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[] = '';
// $metadata_arr[] = '
';
// Schema.org type
$metadata_arr['@type'] = esc_attr($main_content_object);
// 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[] = '';
// $metadata_arr[] = '';
// Get publisher metatags
// $metadata_arr = array_merge( $metadata_arr, amt_get_schemaorg_publisher_metatags( $options, $post->post_author ) );
$metadata_arr['publisher'] = amt_get_jsonld_schemaorg_publisher_array($options, $post->post_author);
// Scope END: Organization
// $metadata_arr[] = ' ';
}
// Author
// Scope BEGIN: Person: http://schema.org/Person
// $metadata_arr[] = '';
// $metadata_arr[] = '';
// Get author metatags
// $metadata_arr = array_merge( $metadata_arr, amt_get_schemaorg_author_metatags( $post->post_author, $options ) );
$metadata_arr['author'] = amt_get_jsonld_schemaorg_author_array( $post->post_author, $options );
// Scope END: Person
// $metadata_arr[] = ' ';
// URL - Uses amt_get_permalink_for_multipage()
$metadata_arr['url'] = esc_url_raw( amt_get_permalink_for_multipage($post) );
// mainEntityOfPage
$metadata_arr['mainEntityOfPage'] = esc_url( amt_get_permalink_for_multipage($post) );
// Dates
$metadata_arr['datePublished'] = esc_attr( amt_iso8601_date($post->post_date) );
$metadata_arr['dateModified'] = esc_attr( amt_iso8601_date($post->post_modified) );
$metadata_arr['copyrightYear'] = esc_attr( mysql2date('Y', $post->post_date) );
// Language
$metadata_arr['inLanguage'] = esc_attr( str_replace('-', '_', amt_get_language_content($options, $post)) );
// name
// Note: Contains multipage information through amt_process_paged()
$metadata_arr['name'] = esc_attr( amt_process_paged( strip_tags( get_the_title($post->ID) ) ) );
// headline - contains title information
$metadata_arr['headline'] = esc_attr( amt_get_title_for_metadata($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['description'] = 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[] = '';
}
*/
// 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['articleSection'] = esc_attr( $section );
}
}
}
// Add review properties if Review
if ( $main_content_object == 'Review' ) {
// $metadata_arr[] = '';
// $metadata_arr[] = amt_get_review_info_box( $review_data );
// $metadata_arr[] = '';
// Reviewed Item
$metadata_arr['itemReviewed'] = array();
$metadata_arr['itemReviewed']['@type'] = esc_attr($review_data['object']);
$metadata_arr['itemReviewed']['name'] = esc_attr($review_data['name']);
$metadata_arr['itemReviewed']['sameAs'] = esc_url_raw($review_data['sameAs']);
// Extra properties of reviewed item
foreach ( $review_data['extra'] as $key => $value ) {
if ( is_array($value) ) {
// Add sub entity
// If it is an array, the 'object' property is mandatory
if ( ! array_key_exists( 'object', $value ) ) {
continue;
}
$metadata_arr['itemReviewed'][esc_attr($key)] = array();
$metadata_arr['itemReviewed'][esc_attr($key)]['@type'] = esc_attr($value['object']);
foreach ( $value as $subkey => $subvalue ) {
if ( $subkey != 'object' ) {
if ( in_array( $subkey, array('url', 'sameAs') ) ) {
$metadata_arr['itemReviewed'][esc_attr($key)][esc_attr($subkey)] = esc_url_raw($subvalue);
} else {
$metadata_arr['itemReviewed'][esc_attr($key)][esc_attr($subkey)] = esc_attr($subvalue);
}
}
}
} else {
// Add simple meta element
$metadata_arr['itemReviewed'][esc_attr($key)] = esc_attr($value);
}
}
// Rating
$metadata_arr['reviewRating'] = array();
$metadata_arr['reviewRating']['@type'] = 'Rating';
$metadata_arr['reviewRating']['ratingValue'] = esc_attr($review_data['ratingValue']);
$bestrating = apply_filters( 'amt_schemaorg_review_bestrating', '5' );
$metadata_arr['reviewRating']['bestRating'] = esc_attr($bestrating);
}
// Keywords - We use the keywords defined by Add-Meta-Tags
$keywords = amt_get_content_keywords($post);
if (!empty($keywords)) {
$metadata_arr['keywords'] = esc_attr( $keywords );
}
// Referenced Items
$referenced_url_list = amt_get_referenced_items($post);
if ( ! empty($referenced_url_list) ) {
$metadata_arr['referencedItem'] = array();
foreach ($referenced_url_list as $referenced_url) {
$referenced_url = trim($referenced_url);
if ( ! empty( $referenced_url ) ) {
$metadata_arr['referencedItem'][] = esc_url_raw( $referenced_url );
}
}
}
// Images
$metadata_arr['image'] = array();
// 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_array = amt_get_jsonld_schemaorg_image_array( $options, $image_data, $size=$image_size );
if ( ! empty($image_meta_array) ) {
$metadata_arr['image'] = array();
$metadata_arr['image'][] = $image_meta_array;
}
//$global_image_override_url = amt_get_post_meta_image_url($post->ID);
//if ( ! empty( $global_image_override_url ) ) {
// $metadata_arr[] = '';
// $metadata_arr[] = '';
// $current_image_obj = array();
// $current_image_obj['@type'] = 'ImageObject';
// $current_image_obj['url'] = esc_url_raw( $global_image_override_url );
// $current_image_obj['contentUrl'] = esc_url_raw( $global_image_override_url );
// $metadata_arr['image'][] = $current_image_obj;
// $metadata_arr[] = '';
// $metadata_arr[] = ' ';
// 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['thumbnailUrl'] = 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[] = '';
// $metadata_arr[] = '';
// 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_arr['image'][] = amt_get_jsonld_schemaorg_image_array( $options, $image, $size=$image_size );
// metadata END
// $metadata_arr[] = ' ';
// 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[] = '';
// $metadata_arr[] = '';
// 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_arr['image'][] = amt_get_jsonld_schemaorg_image_array( $options, $attachment, $size=$image_size );
// metadata END
// $metadata_arr[] = ' ';
// 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[] = '';
// $metadata_arr[] = '';
// Video specific metatags
// URL (for attachments: links to attachment page)
$current_video_obj = array();
$current_video_obj['@type'] = 'VideoObject';
// URL (links to image file)
//$current_video_obj['url'] = esc_url_raw( get_permalink( $attachment->ID ) );
$current_video_obj['url'] = esc_url_raw( wp_get_attachment_url($attachment->ID) );
// sameAs (links to attachment page)
$current_video_obj['sameAs'] = esc_url_raw( get_permalink( $attachment->ID ) );
$current_video_obj['contentUrl'] = esc_url_raw( wp_get_attachment_url($attachment->ID) );
$current_video_obj['encodingFormat'] = esc_attr( $mime_type );
// name
$current_video_obj['name'] = esc_attr( strip_tags( get_the_title($attachment->ID) ) );
// Description - We use the description defined by Add-Meta-Tags
$content_desc = amt_get_content_description($attachment);
if ( ! empty($content_desc) ) {
$current_video_obj['description'] = 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 );
$current_video_obj['thumbnailUrl'] = esc_url_raw( $thumbnail_info[0] );
// Currently we do not add a full ImageObject for the attachment's featured image.
// TODO: future
}
// uploadDate
$current_video_obj['uploadDate'] = esc_attr( amt_iso8601_date($attachment->post_date) );
$metadata_arr['video'][] = $current_video_obj;
// Scope END: VideoObject
// $metadata_arr[] = ' ';
// Increase video counter
$vc++;
} elseif ( 'audio' == $attachment_type && $ac < $audio_limit ) {
// Scope BEGIN: AudioObject: http://schema.org/AudioObject
// $metadata_arr[] = '';
// $metadata_arr[] = '';
// Audio specific metatags
// URL (for attachments: links to attachment page)
$current_audio_obj = array();
$current_audio_obj['@type'] = 'AudioObject';
// URL (links to image file)
//$current_audio_obj['url'] = esc_url_raw( get_permalink( $attachment->ID ) );
$current_audio_obj['url'] = esc_url_raw( wp_get_attachment_url($attachment->ID) );
// sameAs (links to attachment page)
$current_audio_obj['sameAs'] = esc_url_raw( get_permalink( $attachment->ID ) );
$current_audio_obj['contentUrl'] = esc_url_raw( wp_get_attachment_url($attachment->ID) );
$current_audio_obj['encodingFormat'] = esc_attr( $mime_type );
// name
$current_audio_obj['name'] = esc_attr( strip_tags( get_the_title($attachment->ID) ) );
// Description - We use the description defined by Add-Meta-Tags
$content_desc = amt_get_content_description($attachment);
if ( ! empty($content_desc) ) {
$current_audio_obj['description'] = 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 );
$current_audio_obj['thumbnailUrl'] = esc_url_raw( $thumbnail_info[0] );
// Currently we do not add a full ImageObject for the attachment's featured image.
// TODO: future
}
// uploadDate
$current_audio_obj['uploadDate'] = esc_attr( amt_iso8601_date($attachment->post_date) );
$metadata_arr['audio'][] = $current_audio_obj;
// Scope END: AudioObject
// $metadata_arr[] = ' ';
// 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[] = '';
// $metadata_arr[] = '';
$current_image_obj = array();
$current_image_obj['@type'] = 'ImageObject';
// name (title)
$current_image_obj['name'] = esc_attr( $embedded_item['alt'] );
// caption
$current_image_obj['caption'] = esc_attr( $embedded_item['alt'] );
// alt
$current_image_obj['text'] = esc_attr( $embedded_item['alt'] );
// URL (links to image file)
//$current_image_obj['url'] = esc_url_raw( $embedded_item['page'] );
$current_image_obj['url'] = esc_url_raw( $embedded_item['image'] );
// sameAs (links to attachment page)
$current_image_obj['sameAs'] = esc_url_raw( $embedded_item['page'] );
// thumbnail url
$current_image_obj['thumbnailUrl'] = esc_url_raw( $embedded_item['thumbnail'] );
// main image
$current_image_obj['contentUrl'] = esc_url_raw( $embedded_item['image'] );
if ( apply_filters( 'amt_extended_image_tags', true ) ) {
$current_image_obj['width'] = esc_attr( $embedded_item['width'] );
$current_image_obj['height'] = esc_attr( $embedded_item['height'] );
$current_image_obj['encodingFormat'] = 'image/jpeg';
}
// embedURL
$current_image_obj['embedURL'] = esc_url_raw( $embedded_item['player'] );
$metadata_arr['image'][] = $current_image_obj;
// Scope END: ImageObject
// $metadata_arr[] = ' ';
// 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[] = '';
// $metadata_arr[] = '';
$current_video_obj = array();
// Video Embed URL
$current_video_obj['embedURL'] = esc_url_raw( $embedded_item['player'] );
// playerType
$current_video_obj['playerType'] = 'application/x-shockwave-flash';
// size
$current_video_obj['width'] = esc_attr( $embedded_item['width'] );
$current_video_obj['height'] = esc_attr( $embedded_item['height'] );
$metadata_arr['video'][] = $current_video_obj;
// Scope END: VideoObject
// $metadata_arr[] = ' ';
// 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[] = '';
// $metadata_arr[] = '';
$current_audio_obj = array();
// Audio Embed URL
$current_audio_obj['embedURL'] = esc_url_raw( $embedded_item['player'] );
// playerType
$current_audio_obj['playerType'] = 'application/x-shockwave-flash';
$metadata_arr['audio'][] = $current_audio_obj;
// Scope END: AudioObject
// $metadata_arr[] = ' ';
// 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_array = amt_get_jsonld_schemaorg_image_array( $options, $image_data, $size=$image_size );
if ( ! empty($image_meta_array) ) {
$metadata_arr['image'] = array();
$metadata_arr['image'][] = $image_meta_array;
}
}
// $metadata_arr[] = '';
// $metadata_arr[] = '';
$current_image_obj = array();
$current_image_obj['@type'] = 'ImageObject';
$current_image_obj['url'] = esc_url_raw( $options["default_image_url"] );
$current_image_obj['contentUrl'] = esc_url_raw( $options["default_image_url"] );
$metadata_arr['image'][] = $current_image_obj;
// $metadata_arr[] = '';
// $metadata_arr[] = ' ';
}
// 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[] = '
';
// Filtering of the generated Schema.org metadata
$metadata_arr = apply_filters( 'amt_jsonld_schemaorg_metadata_content', $metadata_arr );
// Add articleBody to Artice
// Now add the article. Remove last closing '' 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 );
// $metadata_arr[] = '
';
// Add main content
//$metadata_arr[ esc_attr($main_text_property) ] = $post->post_content;
// $metadata_arr[] = $post_body;
// $metadata_arr[] = '
';
// Now add closing tag for Article
// $metadata_arr[] = $closing_article_tag;
}
// Add our comment
// if ( count( $metadata_arr ) > 0 ) {
// array_unshift( $metadata_arr, "" );
// array_unshift( $metadata_arr, "" ); // Intentionaly left empty
// array_push( $metadata_arr, "" );
// array_push( $metadata_arr, "" ); // Intentionaly left empty
// }
//return $post_body;
// return implode( PHP_EOL, $metadata_arr );
// Filtering of the generated microdata for footer
$metadata_arr = apply_filters( 'amt_jsonld_schemaorg_metadata_head', $metadata_arr );
// if ( count( $metadata_arr ) > 0 ) {
// array_unshift( $metadata_arr, '' );
// array_push( $metadata_arr, "" ); // Intentionaly left empty
// }
// return $metadata_arr;
if ( count( $metadata_arr ) > 1 ) {
// contains @context by default
return array('');
} else {
return array();
}
}
/**
* Return an array of Schema.org metatags for the provided $image object.
* By default, returns metadata for the 'medium' sized version of the image.
*/
function amt_get_jsonld_schemaorg_image_array( $options, $image_data, $size='medium', $is_representative=false ) {
//
// $image_data can be:
//
// 1. An array with the following data:
//
// 'id' => null, // post ID of attachment
// 'url' => null,
// 'width' => null,
// 'height' => null,
// 'type' => null,
//
// 2. An attachment ID (integer)
//
// 3. An attachment object (post object) (Usually ths is the case in the schema.org generators
//
//var_dump($image_data);
$metadata_arr = array();
$image = null;
if ( is_array($image_data) && ! is_null($image_data['url']) ) {
// Here we process the image data as retrieved from the special notation of the image's URL.
// No size information is taken into account in this case.
// Schema.org type
$metadata_arr['@type'] = 'ImageObject';
// Image tags
$metadata_arr['url'] = esc_url( $image_data['url'] );
$metadata_arr['contentUrl'] = esc_url( $image_data['url'] );
if ( apply_filters( 'amt_extended_image_tags', true ) ) {
if ( ! is_null($image_data['width']) ) {
$metadata_arr['width'] = esc_attr( $image_data['width'] );
}
if ( ! is_null($image_data['height']) ) {
$metadata_arr['height'] = esc_attr( $image_data['height'] );
}
if ( ! is_null($image_data['type']) ) {
$metadata_arr['encodingFormat'] = esc_attr( $image_data['type'] );
}
}
return $metadata_arr;
} elseif ( is_array($image_data) && is_numeric($image_data['id']) ) {
// The attachment ID exists in the array's 'id' item.
$image = get_post( absint( $image_data['id'] ) );
} elseif ( is_numeric($image_data) ) {
// Image data is the attachment ID (integer)
$image = get_post( absint( $image_data ) );
} elseif ( is_object($image_data) && isset($image_data->ID) ) {
// Image data is the attachment itself.
$image = $image_data;
}
if ( is_null($image) || ! is_object($image) || ! isset($image->ID) ) {
return $metadata_arr;
}
// Process the image attachment and generate meta tags.
// Schema.org type
$metadata_arr['@type'] = 'ImageObject';
// Get the image object <- Already have it
//$image = get_post( $post_id );
// Data for image attachments
$image_meta = wp_get_attachment_metadata( $image->ID ); // contains info about all sizes
// We use wp_get_attachment_image_src() since it constructs the URLs
$thumbnail_meta = wp_get_attachment_image_src( $image->ID , 'thumbnail' );
$main_size_meta = wp_get_attachment_image_src( $image->ID , $size );
// name (title)
$metadata_arr['name'] = esc_attr( strip_tags( get_the_title( $image->ID ) ) );
// OLD name (title)
//$image_title = sanitize_text_field( $image->post_title );
//if ( ! empty( $image_title ) ) {
// $metadata_arr[] = '
';
//}
// URL (links to image file)
//$metadata_arr['url'] = esc_url_raw( get_permalink( $image->ID ) );
$metadata_arr['url'] = esc_url_raw( $main_size_meta[0] );
// sameAS (links to attachment page)
$metadata_arr['sameAs'] = esc_url_raw( get_permalink( $image->ID ) );
// Description (generated from $image->post_content. See: amt_get_the_excerpt()
$image_description = amt_get_content_description($image);
if ( ! empty( $image_description ) ) {
$metadata_arr['description'] = esc_attr( $image_description );
}
// thumbnail url
$metadata_arr['thumbnailUrl'] = esc_url_raw( $thumbnail_meta[0] );
// main image
$metadata_arr['contentUrl'] = esc_url_raw( $main_size_meta[0] );
if ( apply_filters( 'amt_extended_image_tags', true ) ) {
$metadata_arr['width'] = esc_attr( $main_size_meta[1] );
$metadata_arr['height'] = esc_attr( $main_size_meta[2] );
$metadata_arr['encodingFormat'] = esc_attr( get_post_mime_type( $image->ID ) );
}
// caption
// Here we sanitize the provided description for safety
$image_caption = sanitize_text_field( $image->post_excerpt );
if ( ! empty( $image_caption ) ) {
$metadata_arr['caption'] = esc_attr( $image_caption );
}
// alt
// Here we sanitize the provided description for safety
$image_alt = sanitize_text_field( get_post_meta( $image->ID, '_wp_attachment_image_alt', true ) );
if ( ! empty( $image_alt ) ) {
$metadata_arr['text'] = esc_attr( $image_alt );
}
if ( $is_representative === true ) {
// representativeOfPage - Boolean - Indicates whether this image is representative of the content of the page.
$metadata_arr['representativeOfPage'] = 'True';
}
return $metadata_arr;
}
/**
* Return an array of Schema.org metatags suitable for the publisher object of
* the content. Accepts the $post object as argument.
*/
function amt_get_jsonld_schemaorg_publisher_array( $options, $author_id=null ) {
$metadata_arr = array();
// Schema.org type
$metadata_arr['@type'] = 'Organization';
// name
$metadata_arr['name'] = esc_attr( get_bloginfo('name') );
// description
// First use the site description from the Add-Meta-Tags settings
$site_description = amt_get_site_description($options);
if ( empty($site_description) ) {
// Alternatively, use the blog description
// Here we sanitize the provided description for safety
$site_description = sanitize_text_field( amt_sanitize_description( get_bloginfo('description') ) );
}
if ( ! empty($site_description) ) {
$metadata_arr['description'] = esc_attr( $site_description );
}
// logo
$image_data = amt_get_default_image_data();
if ( ! empty($image_data) ) {
$image_size = apply_filters( 'amt_image_size_content', 'full' );
$image_meta_array = amt_get_jsonld_schemaorg_image_array( $options, $image_data, $size=$image_size );
if ( ! empty($image_meta_array) ) {
$metadata_arr['logo'] = array();
$logo_obj = array();
// Type
$logo_obj['@type'] = 'ImageObject';
// name (title)
$logo_obj['name'] = esc_attr( get_bloginfo('name') ) . ' ' . __('logo', 'add-meta-tags');
// caption
//$logo_obj['caption'] = esc_attr( rtrim(get_bloginfo('description'), '.') ) . '.';
// alt
$logo_obj['text'] = esc_attr( get_bloginfo('name') ) . ' ' . __('logo', 'add-meta-tags');
// Image URL & attributes
$logo_obj = array_merge( $logo_obj, $image_meta_array );
// URL (links to web page containing the image)
//$logo_obj['url'] = esc_url( $options["default_image_url"] );
// thumbnail url
//$logo_obj['thumbnailUrl'] = esc_url( ... );
// main image
//$logo_obj['contentUrl'] = esc_url( $options["default_image_url"] );
//if ( apply_filters( 'amt_extended_image_tags', true ) ) {
// $metadata_arr[] = '
';
// $metadata_arr[] = '
';
// $metadata_arr[] = '
';
//}
// Add logo entity to metadata
$metadata_arr['logo'][] = $logo_obj;
}
}
////if ( ! empty($options["default_image_url"]) ) {
////$metadata_arr['logo'] = array();
////$logo_obj = array();
// Type
////$logo_obj['@type'] = 'ImageObject';
// name (title)
////$logo_obj['name'] = esc_attr( get_bloginfo('name') ) . ' ' . __('logo', 'add-meta-tags');
// caption
//$logo_obj['caption'] = esc_attr( rtrim(get_bloginfo('description'), '.') ) . '.';
// alt
////$logo_obj['text'] = esc_attr( get_bloginfo('name') ) . ' ' . __('logo', 'add-meta-tags');
// URL (links to web page containing the image)
////$logo_obj['url'] = esc_url( $options["default_image_url"] );
// thumbnail url
//$logo_obj['thumbnailUrl'] = esc_url( ... );
// main image
////$logo_obj['contentUrl'] = esc_url( $options["default_image_url"] );
//if ( apply_filters( 'amt_extended_image_tags', true ) ) {
// $metadata_arr[] = '
';
// $metadata_arr[] = '
';
// $metadata_arr[] = '
';
//}
// Add logo entity to metadata
////$metadata_arr['logo'][] = $logo_obj;
////}
// url
// The blog url is used by default. Google+, Facebook and Twitter profile URLs are added as sameAs.
$metadata_arr['url'] = esc_url_raw( trailingslashit( get_bloginfo('url') ) );
// sameAs
$metadata_arr['sameAs'] = array();
// Social Profile Links are added as sameAs properties
// By default, those of the Publisher Settings are used.
// WARNING: Publisher profile URLs from the user profile page are now deprecated.
// Google+ Publisher
if ( ! empty($options['social_main_googleplus_publisher_profile_url']) ) {
$metadata_arr['sameAs'][] = esc_url_raw( $options['social_main_googleplus_publisher_profile_url'], array('http', 'https') );
}
// Facebook
if ( ! empty($options['social_main_facebook_publisher_profile_url']) ) {
$metadata_arr['sameAs'][] = esc_url_raw( $options['social_main_facebook_publisher_profile_url'], array('http', 'https') );
}
// Twitter
if ( ! empty($options['social_main_twitter_publisher_username']) ) {
$metadata_arr['sameAs'][] = 'https://twitter.com/' . esc_attr( $options['social_main_twitter_publisher_username'] );
}
// Allow filtering of the Publisher meta tags
$metadata_arr = apply_filters( 'amt_jsonld_schemaorg_publisher_extra', $metadata_arr );
return $metadata_arr;
}
/**
* Return an array of Schema.org metatags suitable for the author object of
* the content. Accepts the $post object as argument.
*/
function amt_get_jsonld_schemaorg_author_array( $author_id, $options ) {
//$author_obj = get_user_by( 'id', $author_id );
$metadata_arr = array();
// Schema.org type
$metadata_arr['@type'] = 'Person';
// name
$display_name = get_the_author_meta('display_name', $author_id);
$metadata_arr['name'] = esc_attr( $display_name );
// description
// Here we sanitize the provided description for safety
$author_description = sanitize_text_field( amt_sanitize_description( get_the_author_meta('description', $author_id) ) );
if ( !empty($author_description) ) {
$metadata_arr['description'] = esc_attr( $author_description );
}
// Profile Image
// First use the global image override URL
$image_data = amt_get_image_data( amt_get_user_meta_image_url( $author_id ) );
if ( ! empty($image_data) ) {
$image_size = apply_filters( 'amt_image_size_index', 'full' );
$image_meta_array = amt_get_jsonld_schemaorg_image_array( $options, $image_data, $size=$image_size );
if ( ! empty($image_meta_array) ) {
$metadata_arr['image'] = array();
$metadata_arr['image'][] = $image_meta_array;
}
} else {
$author_email = sanitize_email( get_the_author_meta('user_email', $author_id) );
$avatar_size = apply_filters( 'amt_avatar_size', 128 );
$avatar_url = '';
// First try to get the avatar link by using get_avatar().
// Important: for this to work the "Show Avatars" option should be enabled in Settings > Discussion.
$avatar_img = get_avatar( get_the_author_meta('ID', $author_id), $avatar_size, '', get_the_author_meta('display_name', $author_id) );
if ( ! empty($avatar_img) ) {
if ( preg_match("#src=['\"]([^'\"]+)['\"]#", $avatar_img, $matches) ) {
$avatar_url = $matches[1];
}
} elseif ( ! empty($author_email) ) {
// If the user has provided an email, we use it to construct a gravatar link.
$avatar_url = "http://www.gravatar.com/avatar/" . md5( $author_email ) . "?s=" . $avatar_size;
}
if ( ! empty($avatar_url) ) {
//$avatar_url = html_entity_decode($avatar_url, ENT_NOQUOTES, 'UTF-8');
//$metadata_arr['image'] = esc_url_raw( $avatar_url );
$image_data = amt_get_image_data( sprintf('%s,%dx%d', $avatar_url, $avatar_size, $avatar_size) );
if ( ! empty($image_data) ) {
$image_meta_array = amt_get_jsonld_schemaorg_image_array( $options, $image_data );
if ( ! empty($image_meta_array) ) {
$metadata_arr['image'] = array();
$metadata_arr['image'][] = $image_meta_array;
}
}
}
}
// url
// The URL to the author archive is added as the url.
//$metadata_arr['url'] = esc_url_raw( get_author_posts_url( $author_id ) );
$metadata_arr['url'] = esc_url_raw( amt_get_local_author_profile_url( $author_id, $options ) );
// sameAs
$metadata_arr['sameAs'] = array();
// Social Profile Links are added as sameAs properties
// Those from the WordPress User Profile page are used.
// Google+ Author
$googleplus_author_url = get_the_author_meta('amt_googleplus_author_profile_url', $author_id);
if ( !empty($googleplus_author_url) ) {
$metadata_arr['sameAs'][] = esc_url_raw( $googleplus_author_url, array('http', 'https') );
}
// Facebook
$facebook_author_url = get_the_author_meta('amt_facebook_author_profile_url', $author_id);
if ( !empty($facebook_author_url) ) {
$metadata_arr['sameAs'][] = esc_url_raw( $facebook_author_url, array('http', 'https') );
}
// Twitter
$twitter_author_username = get_the_author_meta('amt_twitter_author_username', $author_id);
if ( !empty($twitter_author_username) ) {
$metadata_arr['sameAs'][] = 'https://twitter.com/' . esc_attr( $twitter_author_username );
}
// The User URL as set by the user in the WordPress User Profile page.
$user_url = get_the_author_meta( 'user_url', $author_id );
if ( !empty($user_url) ) {
$metadata_arr['sameAs'][] = esc_url_raw( $user_url, array('http', 'https') );
}
// Check if empty
if ( empty($metadata_arr['sameAs']) ) {
unset($metadata_arr['sameAs']);
}
// Allow filtering of the Author meta tags
$metadata_arr = apply_filters( 'amt_jsonld_schemaorg_author_extra', $metadata_arr, $author_id );
return $metadata_arr;
}