显示父级和子级页面的面包屑

时间：2012-03-07 作者：Nick

我们正在尝试为面包屑创建一个函数，该函数不仅显示当前页面的路径，还显示具有相同父页面的其他页面的路径。

例如，在示例上。com/parent1/child3，面包屑将显示Home>parent1>Child1>Child2>child3>Child4，而不仅仅是Home>parent1>child3。

我们使用的是来自http://dimox.net/wordpress-breadcrumbs-without-a-plugin/:

function dimox_breadcrumbs( $args = array() ) {
$defaults = array(
    \'delimiter\'         => \'»\',
    \'home\'              => \'Home\',
    \'before\'            => \'<span class="current">\',
    \'after\'             => \'</span>\',
    \'before_wrapper\'    => \'<div id="crumbs">\',
    \'after_wrapper\'     => \'</div>\',
    \'before_link\'       => \'<li>\',
    \'after_link\'        => \'</li>\'
);

$opts = wp_parse_args( $args, $defaults );

$delimiter = $opts[\'delimiter\'];
$home = $opts[\'home\']; // text for the \'Home\' link
$showCurrent = 0; // 1 - show current post/page title in breadcrumbs, 0 - don\'t show
$before = $opts[\'before\']; // tag before the current crumb
$after = $opts[\'after\']; // tag after the current crumb
$b_link = $opts[\'before_link\'];
$a_link = $opts[\'after_link\'];
$title = \'\';
$sub_title = \'\';

if ( 1 || (!is_home() && !is_front_page()) || is_paged() ) {

    echo $opts[\'before_wrapper\'];

    $out = \'<ul>\';

    global $post;
    $homeLink = get_bloginfo(\'url\');
    $out .= $b_link . \'<a href="\' . $homeLink . \'">\' . $home . \'</a>\' . $a_link . $delimiter;

    if ( is_category() ) {
        global $wp_query;
        $cat_obj = $wp_query->get_queried_object();
        $thisCat = $cat_obj->term_id;
        $thisCat = get_category($thisCat);
        $parentCat = get_category($thisCat->parent);
        if ($thisCat->parent != 0) {
            $out .= $b_link . (get_category_parents($parentCat, TRUE, $delimiter)) . $a_link;        
        }

        $title = __( \'Archive by category "%"\', LANGUAGE_ZONE );
        $sub_title = single_cat_title(\'\', false);
        $title = str_replace( \'%\', $sub_title, $title );

    }elseif ( is_day() ) {
        $out .= $b_link . \'<a href="\' . get_year_link(get_the_time(\'Y\')) . \'">\' . get_the_time(\'Y\') . \'</a>\' . $a_link . $delimiter;
        $out .= $b_link . \'<a href="\' . get_month_link(get_the_time(\'Y\'),get_the_time(\'m\')) . \'">\' . get_the_time(\'F\') . \'</a>\' . $a_link . $delimiter;
        $title = $sub_title = get_the_time(\'d\');

    }elseif ( is_month() ) {
        $out .= $b_link . \'<a href="\' . get_year_link(get_the_time(\'Y\')) . \'">\' . get_the_time(\'Y\') . \'</a>\' . $a_link . $delimiter;
        $title = $sub_title = get_the_time(\'F\');

    }elseif ( is_year() ) {
        $title = $sub_title = get_the_time(\'Y\');

    }elseif ( is_search() ) {
        $title = __( \'Search results for "%"\', LANGUAGE_ZONE );
        $sub_title = get_search_query();
        $title = str_replace( \'%\', $sub_title, $title );

    }elseif ( is_single() && !is_attachment() ) {
        if ( get_post_type() != \'post\' ) {
            $post_type = get_post_type_object(get_post_type());
            $slug = $post_type->rewrite;
//     echo $b_link . $post_type->labels->singular_name . $a_link . $delimiter;
//     echo $b_link . \'<a href="\' . $homeLink . \'/\' . $slug[\'slug\'] . \'/">\' . $post_type->labels->singular_name . \'</a>\' . $a_link . $delimiter;
            $title = $sub_title = get_the_title();
        }else {
// blog and other stuff
            $menu_data = dt_current_menu_item();

//                $cat = get_the_category(); $cat = $cat[0];
//                echo $b_link . get_category_parents($cat, TRUE, \' \' . $delimiter . \' \') . $a_link;
            $out .= $b_link . \'<a href=\' . esc_url($menu_data[\'link\']) . \'>\' . $menu_data[\'title\'] . \'</a>\' . $a_link;
            $title = get_the_title();
            $sub_title = $menu_data[\'title\'];
        }

    }elseif ( !is_single() && !is_page() && get_post_type() != \'post\' && !is_404() ) {
        $post_type = get_post_type_object(get_post_type());
        $title = $sub_title = $post_type->labels->singular_name;

    }elseif ( is_attachment() ) {
        $parent = get_post($post->post_parent);
//            $cat = get_the_category($parent->ID); $cat = $cat[0];
//            $out .= get_category_parents($cat, TRUE, \' \' . $delimiter . \' \');
        $out .= $b_link . \'<a href="\' . get_permalink($parent) . \'">\' . $parent->post_title . \'</a>\'  . $a_link . $delimiter;
        $title = $sub_title = get_the_title();

    }elseif ( is_page() && !$post->post_parent ) {
        $title = $sub_title = get_the_title();

    }elseif ( is_page() && $post->post_parent ) {
        $parent_id  = $post->post_parent;
        $breadcrumbs = array();
        while ($parent_id) {
            $page = get_page($parent_id);
            $breadcrumbs[] = $b_link . \'<a href="\' . get_permalink($page->ID) . \'">\' . get_the_title($page->ID) . \'</a>\' . $a_link;
            $parent_id  = $page->post_parent;
        }
        $breadcrumbs = array_reverse($breadcrumbs);
        foreach ($breadcrumbs as $crumb) $out .= $crumb . $delimiter;
        $title = $sub_title = get_the_title();

    }elseif ( is_tag() ) {
        $title = __( \'Posts tagged "%"\', LANGUAGE_ZONE );
        $sub_title = single_tag_title(\'\', false);
        $title = str_replace( \'%\', $sub_title, $title );

    }elseif ( is_author() ) {
        global $author;
        $userdata = get_userdata($author);
        $title = __( \'Articles posted by %\', LANGUAGE_ZONE );
        $sub_title = $userdata->display_name;
        $title = str_replace( \'%\', $sub_title, $title );

    }elseif ( is_404() ) {
        $title = $sub_title = __( \'Error 404\', LANGUAGE_ZONE );

    }elseif( is_home() ) {
        $title = $sub_title = __( \'Blog\', LANGUAGE_ZONE );

    }

    if( strlen($title) > 50 ) {
        $title = substr( $title, 0, 50 );
        $title .= \'...\';
    }

    $out .= $before . $title . $after;

    if ( get_query_var(\'paged\') ) {
        if( is_category() ||
            is_day() ||
            is_month() ||
            is_year() ||
            is_search() ||
            is_tag() ||
            is_author() )
        {
            $out .= \' (\';
        }

        $out .= \'&nbsp;\' . __(\'Page\', LANGUAGE_ZONE) . \' \' . get_query_var(\'paged\');

        if( is_category() ||
            is_day() ||
            is_month() ||
            is_year() ||
            is_search() ||
            is_tag() ||
            is_author() )
        {
            $out .= \')\';
        }
    }

    $out .= \'</ul>\';

    if( $opts[\'show_trail\'] ) {
        echo $out;
    }

    echo \'<h1>\' . dt_first_letter_filter( $sub_title ) . \'</h1>\';

    echo $opts[\'after_wrapper\'];

}
} // end dimox_breadcrumbs
有什么想法吗？我们真的很感激。

1 个回复
最合适的回答,由SO网友:helgatheviking 整理而成

我想把它放回你的面包屑里。。。从本质上来说，我认为这是有等级的。

但这应该会给您一个页面列表，其中的父页面与您所在的页面（即其同级页面）具有相同的父页面，尽管完全没有样式

global $post;

$args = array(\'child_of\' => $post->post_parent, \'exclude\'=> $post->ID);
if ($post->post_parent) $pages = get_pages($args);

if ($pages) foreach ($pages as $page): 
    echo $page->post_title .\'<br/>\';
endforeach;
如果您列出当前页面，然后列出其同级，那么您可以通过编程方式重新创建所需内容

edit 1: 设置postdata，以便我们可以使用get\\u permalink（）、在“循环”等中获取\\u title（），而不是对象方法。get\\u permalink（）获取循环中当前项的URL

global $post;

$args = array(\'child_of\' => $post->post_parent, \'exclude\'=> $post->ID);
if ($post->post_parent) $pages = get_pages($args);

if ($pages) :

//store the $temp variable
$temp = $post;

$siblings = \'<ul>\';

foreach ($pages as $post): setup_postdata($post); 

    $siblings .= \'<li><a href="\'.get_permalink().\'">\'.get_the_title().\'</a></li>\';
endforeach;

//restore the $post variable
$post = $temp;

$siblings .= \'</ul>\';

echo $siblings;

endif;
args不同，但是http://codex.wordpress.org/Function_Reference/get_posts#Reset_after_Postlists_with_offset是我通常使用的foreach循环。它还可以获取get\\u帖子，但get\\u页面的工作原理相同，只是它只返回页面。

结束
标签： functions   menus   navigation   child-pages   breadcrumb   小码农  

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