投稿日:2017/06/13
更新日:2017/06/15
サイトマップにサブタイトル表示<原始的版>のwordpressの機能をもう少し使ってみる版
WordPress既存関数のカスタマイズで
add_filter()、add_action()の他に walker classというのものがあるらしく、これがwp_list_pagesに使えそうとのことで調べてみました。
__setting.php
class My_Walker_Page extends Walker_Page {
public function start_el( &$output, $page, $depth = 0, $args = array(), $current_page = 0 ) {
if ( $depth ) {
$indent = str_repeat( "\t", $depth );
} else {
$indent = '';
}
$css_class = array( 'page_item', 'page-item-' . $page->ID );
if ( isset( $args['pages_with_children'][ $page->ID ] ) ) {
$css_class[] = 'page_item_has_children';
}
if ( ! empty( $current_page ) ) {
$_current_page = get_post( $current_page );
if ( $_current_page && in_array( $page->ID, $_current_page->ancestors ) ) {
$css_class[] = 'current_page_ancestor';
}
if ( $page->ID == $current_page ) {
$css_class[] = 'current_page_item';
} elseif ( $_current_page && $page->ID == $_current_page->post_parent ) {
$css_class[] = 'current_page_parent';
}
} elseif ( $page->ID == get_option('page_for_posts') ) {
$css_class[] = 'current_page_parent';
}
$css_classes = implode( ' ', apply_filters( 'page_css_class', $css_class, $page, $depth, $args, $current_page ) );
if ( '' === $page->post_title ) {
/* translators: %d: ID of a post */
$page->post_title = sprintf( __( '#%d (no title)' ), $page->ID );
}
$args['link_before'] = empty( $args['link_before'] ) ? '' : $args['link_before'];
$args['link_after'] = empty( $args['link_after'] ) ? '' : $args['link_after'];
/* サブタイトル取得 */
$subtitle = get_field('subtitle', $page->ID);
var_dump($indent);
$output .= $indent . sprintf(
'<li class="%s"><a href="%s">%s%s%s%s</a>',
$css_classes,
get_permalink( $page->ID ),
$args['link_before'],
/** This filter is documented in wp-includes/post-template.php */
apply_filters( 'the_title', $page->post_title, $page->ID ),
$indent.'<span>'.$subtitle.'</span>',
$args['link_after']
);
if ( ! empty( $args['show_date'] ) ) {
if ( 'modified' == $args['show_date'] ) {
$time = $page->post_modified;
} else {
$time = $page->post_date;
}
$date_format = empty( $args['date_format'] ) ? '' : $args['date_format'];
$output .= " " . mysql2date( $date_format, $time );
}
}
}
sitemap.php
$mts_walker = new My_Walker_Page();
$args = array(
'title_li' => '',
'exclude' => $pageID,
'echo' => 0,
'walker' => $mts_walker
);
echo wp_list_pages( $args );
サイトマップにサブタイトル表示<原始的版>や、こちらはウィジェットでも使えますので 必要の際は使ってみてください。