WordPress 检测您是否处于单页 POST 页面的最佳方式

问题描述

所以这可能看起来像是一件很美的事情，但是跟着我来。

我试图通过 pre_get_posts 操作添加一些逻辑。这是给我的整个 WP_Query 对象。 (见结尾)

我考虑过的事情是：

• is_single() – 太宽

• is_singular() – 使用起来太早​​，因为 get_queried_object()尚未设置。

• $query->single 属性 – 太宽了。

• $query->get('post_type') – 未设置，因为它使用 name 属性。

name 真的是唯一的指标吗？

WP_Query Object
(
    [query] => Array
        (
            [page] =>
            [name] => abcs-of-mental-health
        )

    [query_vars] => Array
        (
            [page] =>
            [name] => abcs-of-mental-health
            [error] =>
            [m] => 0
            [p] => 0
            [post_parent] =>
            [subpost] =>
            [subpost_id] =>
            [attachment] =>
            [attachment_id] => 0
            [static] =>
            [pagename] =>
            [page_id] => 0
            [second] =>
            [minute] =>
            [hour] =>
            [day] => 0
            [monthnum] => 0
            [year] => 0
            [w] => 0
            [category_name] =>
            [tag] =>
            [cat] =>
            [tag_id] =>
            [author_name] =>
            [feed] =>
            [tb] =>
            [paged] => 0
            [comments_popup] =>
            [meta_key] =>
            [meta_value] =>
            [preview] =>
            [s] =>
            [sentence] =>
            [fields] =>
            [menu_order] =>
            [category__in] => Array
                (
                )

            [category__not_in] => Array
                (
                )

            [category__and] => Array
                (
                )

            [post__in] => Array
                (
                )

            [post__not_in] => Array
                (
                )

            [tag__in] => Array
                (
                )

            [tag__not_in] => Array
                (
                )

            [tag__and] => Array
                (
                )

            [tag_slug__in] => Array
                (
                )

            [tag_slug__and] => Array
                (
                )

            [post_parent__in] => Array
                (
                )

            [post_parent__not_in] => Array
                (
                )

        )

    [tax_query] =>
    [meta_query] =>
    [queried_object] =>
    [queried_object_id] => 0
    [post_count] => 0
    [current_post] => -1
    [in_the_loop] =>
    [comment_count] => 0
    [current_comment] => -1
    [found_posts] => 0
    [max_num_pages] => 0
    [max_num_comment_pages] => 0
    [is_single] => 1
    [is_preview] =>
    [is_page] =>
    [is_archive] =>
    [is_date] =>
    [is_year] =>
    [is_month] =>
    [is_day] =>
    [is_time] =>
    [is_author] =>
    [is_category] =>
    [is_tag] =>
    [is_tax] =>
    [is_search] =>
    [is_feed] =>
    [is_comment_feed] =>
    [is_trackback] =>
    [is_home] =>
    [is_404] =>
    [is_comments_popup] =>
    [is_paged] =>
    [is_admin] =>
    [is_attachment] =>
    [is_singular] => 1
    [is_robots] =>
    [is_posts_page] =>
    [is_post_type_archive] =>
    [query_vars_hash] => f473ebf7f725c2627dc5fd9a1429f626
    [query_vars_changed] =>
    [thumbnails_cached] =>
)

最佳解决方案

为了我自己的目的，我已经尝试将之排除。据我所知

• post_type 没有真正设置为 post 帖子类型的任何地方。

• 对于 page 帖子类型，我只看到 queried_object 中的帖子类型键。

• 对于 CPT 类型，query_vars 中还有一个 post_type 密钥，还有 query 。

• 在这方面，导航菜单看起来像其他 CPT 一样。

数据非常不一致，但是如果您删除页面和 CPT，我相信您可以假设 post 类型。

编辑：@EricHolmes 的工作代码：

add_action( 'pre_get_posts', 'something_for_single_posts_only' ) ;
function something_for_single_posts_only( $query ) {
  if( $query->is_main_query()
    && $query->is_singular()
    && ! $query->get( 'post_type' )
    && ! $query->is_page()
    && ! $query->is_attachment()
  ) {
      // do something for single posts only.
  }
}

我们检查 is_singular，没有帖子类型 (CPT 在 query_vars 中有 post_type)，而不是页面或附件。

参考文献

• Best way to detect if you are in a SINGLE POST page

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