WordPress搜索过滤器仅适用于带有孩子的孩子的孩子的页面

Question

WordPress搜索过滤器仅适用于带有孩子的孩子的孩子的页面

- 1
- 1590 2011-11-03
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浏览该网站的问题后,我找到了解决方法:

function SearchFilter($query) { if ($query->is_search) { global $post; $query->set( 'post_parent', 21 ); } return $query; } add_filter('pre_get_posts','SearchFilter');

当我这样做时,其唯一的搜索对象是父母21的孩子,而不是父母21的孩子.

此外,query_vars仅接受post_parent的单个值.

对此的任何解决方案都将受到高度赞赏.

谢谢
after browsing question from this site I found the workaround for this:

function SearchFilter($query) { if ($query->is_search) { global $post; $query->set( 'post_parent', 21 ); } return $query; } add_filter('pre_get_posts','SearchFilter');

When I do this, its only search child of parent 21 not child of child of parent 21.

Also, query_vars only accept single value for post_parent.

any solution for this is highly appreciated.

thanks
query-posts search query filters

1 个回答

投票数

Yoav Aner · Answer 1 · 2012-01-22

2

2012-01-22

您可能可以执行以下操作.它的效率可能较低,但是应该找到给定页面的所有后代,而不仅仅是直接子代.

 function find_descendants($post_id) {
    $descendant_ids = array();
    $pages = get_pages("child_of=$post_id");
    foreach ($pages as $page) { array_push($descendant_ids, $page->ID); }
    return $descendant_ids;
}

function SearchFilter($query) {

    if ($query->is_search) {
        $query->set ( 'post__in', find_descendants(21) );
    }
    return $query;
}
add_filter('pre_get_posts','SearchFilter');

You can probably do something like this. It's probably less efficient, but should find all descendants of a given page rather than just direct children.

function find_descendants($post_id) {
    $descendant_ids = array();
    $pages = get_pages("child_of=$post_id");
    foreach ($pages as $page) { array_push($descendant_ids, $page->ID); }
    return $descendant_ids;
}

function SearchFilter($query) {

    if ($query->is_search) {
        $query->set ( 'post__in', find_descendants(21) );
    }
    return $query;
}
add_filter('pre_get_posts','SearchFilter');