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if ( $parent && $parent !== 'post' && $this->post_type_helper->has_archive( $parent ) ) {
$static_ancestor = $this->repository->find_for_post_type_archive( $parent );
if ( \is_a( $static_ancestor, Indexable::class ) ) {
$static_ancestors[] = $static_ancestor;
}
}
}
// Get all ancestors of the indexable and append itself to get all indexables in the full crumb.
$indexables = $this->repository->get_ancestors( $context->indexable );
$indexables[] = $context->indexable;
if ( ! empty( $static_ancestors ) ) {
\array_unshift( $indexables, ...$static_ancestors );
}
$indexables = \apply_filters( 'wpseo_breadcrumb_indexables', $indexables, $context );
$indexables = \is_array( $indexables ) ? $indexables : [];
$indexables = \array_filter(
$indexables,
function ( $indexable ) {
return \is_a( $indexable, Indexable::class );
}
);
$callback = function ( Indexable $ancestor ) {
$crumb = [
'url' => $ancestor->permalink,
'text' => $ancestor->breadcrumb_title,
];
switch ( $ancestor->object_type ) {
case 'post':
$crumb = $this->get_post_crumb( $crumb, $ancestor );
break;
case 'post-type-archive':
$crumb = $this->get_post_type_archive_crumb( $crumb, $ancestor );
break;
case 'term':
$crumb = $this->get_term_crumb( $crumb, $ancestor );
break;
case 'system-page':
$crumb = $this->get_system_page_crumb( $crumb, $ancestor );
break;
case 'user':
$crumb = $this->get_user_crumb( $crumb, $ancestor );
break;
case 'date-archive':
$crumb = $this->get_date_archive_crumb( $crumb );
break;
}
return $crumb;
};
$crumbs = \array_map( $callback, $indexables );
if ( $breadcrumbs_home !== '' ) {
$crumbs[0]['text'] = $breadcrumbs_home;
}
$crumbs = $this->add_paged_crumb( $crumbs, $context->indexable );
/**
* Filter: 'wpseo_breadcrumb_links' - Allow the developer to filter the Yoast SEO breadcrumb links, add to them, change order, etc.
*
* @param array $crumbs The crumbs array.
*/
$filtered_crumbs = \apply_filters( 'wpseo_breadcrumb_links', $crumbs );
// Basic check to make sure the filtered crumbs are in an array.
if ( ! \is_array( $filtered_crumbs ) ) {
\_doing_it_wrong(
'Filter: \'wpseo_breadcrumb_links\'',
'The `wpseo_breadcrumb_links` filter should return a multi-dimensional array.',
'YoastSEO v20.0'
);
}
else {
$crumbs = $filtered_crumbs;
}
$filter_callback = static function( $link_info, $index ) use ( $crumbs ) {
/**
* Filter: 'wpseo_breadcrumb_single_link_info' - Allow developers to filter the Yoast SEO Breadcrumb link information.
*
* @api array $link_info The breadcrumb link information.
*
* @param int $index The index of the breadcrumb in the list.
* @param array $crumbs The complete list of breadcrumbs.
*/
return \apply_filters( 'wpseo_breadcrumb_single_link_info', $link_info, $index, $crumbs );
};
return \array_map( $filter_callback, $crumbs, \array_keys( $crumbs ) );
}
/**
* Returns the modified post crumb.
*
* @param array $crumb The crumb.
* @param Indexable $ancestor The indexable.
*
* @return array The crumb.
*/
private function get_post_crumb( $crumb, $ancestor ) {
$crumb['id'] = $ancestor->object_id;
return $crumb;
}
/**
* Returns the modified post type crumb.
*
* @param array $crumb The crumb.
* @param Indexable $ancestor The indexable.
*
* @return array The crumb.
*/
private function get_post_type_archive_crumb( $crumb, $ancestor ) {
$crumb['ptarchive'] = $ancestor->object_sub_type;
return $crumb;
}
/**
* Returns the modified term crumb.
*
* @param array $crumb The crumb.
* @param Indexable $ancestor The indexable.
*
* @return array The crumb.
*/
private function get_term_crumb( $crumb, $ancestor ) {
$crumb['term_id'] = $ancestor->object_id;
$crumb['taxonomy'] = $ancestor->object_sub_type;
return $crumb;
}
/**
* Returns the modified system page crumb.
*
* @param array $crumb The crumb.
* @param Indexable $ancestor The indexable.
*
* @return array The crumb.
*/
private function get_system_page_crumb( $crumb, $ancestor ) {
if ( $ancestor->object_sub_type === 'search-result' ) {
$crumb['text'] = $this->options->get( 'breadcrumbs-searchprefix' ) . ' ' . \esc_html( \get_search_query() );
$crumb['url'] = \get_search_link();
}
elseif ( $ancestor->object_sub_type === '404' ) {
$crumb['text'] = $this->options->get( 'breadcrumbs-404crumb' );
}
return $crumb;
}
/**
* Returns the modified user crumb.
*
* @param array $crumb The crumb.
* @param Indexable $ancestor The indexable.
*
* @return array The crumb.
*/
private function get_user_crumb( $crumb, $ancestor ) {
$display_name = \get_the_author_meta( 'display_name', $ancestor->object_id );
$crumb['text'] = $this->options->get( 'breadcrumbs-archiveprefix' ) . ' ' . $display_name;
return $crumb;
}
/**
* Returns the modified date archive crumb.
*
* @param array $crumb The crumb.
*
* @return array The crumb.
*/
protected function get_date_archive_crumb( $crumb ) {
$home_url = $this->url_helper->home();
$prefix = $this->options->get( 'breadcrumbs-archiveprefix' );
if ( \is_day() ) {
$day = \esc_html( \get_the_date() );
$crumb['url'] = $home_url . \get_the_date( 'Y/m/d' ) . '/';
$crumb['text'] = $prefix . ' ' . $day;
}
elseif ( \is_month() ) {
$month = \esc_html( \trim( \single_month_title( ' ', false ) ) );
$crumb['url'] = $home_url . \get_the_date( 'Y/m' ) . '/';
$crumb['text'] = $prefix . ' ' . $month;
}
elseif ( \is_year() ) {
$year = \get_the_date( 'Y' );
$crumb['url'] = $home_url . $year . '/';
$crumb['text'] = $prefix . ' ' . $year;
}
return $crumb;
}
/**
* Returns whether or not a blog crumb should be added.
*
* @param int $page_for_posts The page for posts ID.
* @param Meta_Tags_Context $context The meta tags context.
*
* @return bool Whether or not a blog crumb should be added.
*/
protected function should_have_blog_crumb( $page_for_posts, $context ) {
// When there is no page configured as blog page.
if ( \get_option( 'show_on_front' ) !== 'page' || ! $page_for_posts ) {
return false;
}
if ( $context->indexable->object_type === 'term' ) {
$parent = $this->get_taxonomy_post_type_parent( $context->indexable->object_sub_type );
return $parent === 'post';
}
if ( $this->options->get( 'breadcrumbs-display-blog-page' ) !== true ) {
return false;
}
// When the current page is the home page, searchpage or isn't a singular post.
if ( \is_home() || \is_search() || ! \is_singular( 'post' ) ) {
return false;
}
return true;
}
/**
* Returns the post type parent of a given taxonomy.
*
* @param string $taxonomy The taxonomy.
*
* @return string|false The parent if it exists, false otherwise.
*/
protected function get_taxonomy_post_type_parent( $taxonomy ) {
$parent = $this->options->get( 'taxonomy-' . $taxonomy . '-ptparent' );
if ( empty( $parent ) || (string) $parent === '0' ) {
return false;
}
return $parent;
}
/**
* Adds a crumb for the current page, if we're on an archive page or paginated post.
*
* @param array $crumbs The array of breadcrumbs.
* @param Indexable $current_indexable The current indexable.
*
* @return array The breadcrumbs.
*/
protected function add_paged_crumb( array $crumbs, $current_indexable ) {
$is_simple_page = $this->current_page_helper->is_simple_page();
// If we're not on a paged page do nothing.
if ( ! $is_simple_page && ! $this->current_page_helper->is_paged() ) {
return $crumbs;
}
// If we're not on a paginated post do nothing.
if ( $is_simple_page && $current_indexable->number_of_pages === null ) {
return $crumbs;
}
$current_page_number = $this->pagination_helper->get_current_page_number();
if ( $current_page_number <= 1 ) {
return $crumbs;
}
$crumbs[] = [
'text' => \sprintf(
/* translators: %s expands to the current page number */
\__( 'Page %s', 'wordpress-seo' ),
$current_page_number
),
];
return $crumbs;
}
}