2016-08-13 14:56
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I want to create custom page for category and single page for specifed category with its children .

First , to create custom single page i've used this code

if (in_category('blog')){
include (TEMPLATEPATH . '/single-blog.php');
    include (TEMPLATEPATH . '/single-projects.php');
    include (TEMPLATEPATH . '/single-default.php');

and it work fine just for specifed ctegory in the code and doesn't support the children of category.

fo example : i would like to use single-blog.php for single page of posts that its category is blog or children of blog .

Second , for category page i want to do the same things that i've explained above for list of category's posts .

fo example : i would like to show the list of posts that is related to blog category or its children in category-blog.php.

how can i do it.

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  if(in_category('blog')){\  ninclude(TEMPLATEPATH。'/ single-blog.php'); 
n} elseif(in_category('projects))/
 include(TEMPLATEPATH。'/ single-project.php'); 
else {
}  n include(TEMPLATEPATH。'/ single-default.php'); 

它只适用于代码中指定的ctegory并且不能正常工作 支持类别的孩子。

示例:我想将 single-blog.php 用于其类别 blog的单页帖子 博客的儿童


示例:我想在 category-blog.php 中显示与博客类别或其子项相关的帖子列表。

如何 我能做到吗。

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1条回答 默认 最新

  • donglu2523 2016-08-13 16:33

    For the first part of your question, you're probably looking for cat_is_ancestor_of, so you'd write something like this:

    function is_ancestor_of( $ancestor_category ) {
        $categories = get_the_category(); // array of current post categories
        foreach ( $categories as $category ) {
            if ( cat_is_ancestor_of( $ancestor_category, $category ) ) return true;
        return false;
    $ancestor_category = get_category_by_slug( 'blog' );
    if ( in_category( 'blog' ) || is_ancestor_of( $ancestor_category ) ) {
        // include

    For the second part, I understand that you want to do the same thing but for an archive page. In that case, it's a bit simpler as you won't have an array of categories:

    $archive_category = get_category( get_query_var( 'cat' ) ); // current archive category
    $ancestor_category = get_category_by_slug( 'blog' );
    if ( is_category( 'blog' ) || cat_is_ancestor_of( $ancestor_category, $archive_category ) {
        // include

    Let me know if this works for you,

    EDIT - Here's an alternative option (not tested) that doesn't use --at least directly-- a foreach loop. Not sure if it's higher performance though.

    $ancestor_category = get_category_by_slug( 'blog' );
    $children_categories = get_categories( array ( 'parent' => $ancestor_category->cat_ID ) ); // use 'child_of' instead of 'parent' to get all descendants, not only children
    $categories = get_the_category(); // array of current post categories
    if ( in_category( 'blog' ) || ! empty( array_intersect( $categories, $children_categories ) ) {
        // include
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