默认 WordPress 仅在首页显示置顶文章,如想在分类档案页面显示该分类置顶文章,可以尝试使用下面的代码。将代码添加到当前主题函数模板 functions.php 中：
- class StickyInCategory {
- /**
- * A reference to an instance of this class.
- */
- private static $instance;
- /**
- * The array of categories that will have sticky posts moved to the top.
- */
- protected $categories;
- /**
- * Returns an instance of this class.
- */
- public static function get_instance() {
- if ( null == self::$instance ) {
- self::$instance = new StickyInCategory();
- }
- return self::$instance;
- }
- /**
- * Initializes the plugin by setting filters and administration functions.
- */
- private function __construct() {
- $this->categories = array();
- // Filter retrieved posts
- add_filter( ‘the_posts’, array( $this, ‘prepend_sticky_posts’ ), 10, 2 );
- // Set the ‘sticky’ class
- add_filter( ‘post_class’, array( $this, ‘set_sticky_post_class’ ), 10, 3 );
- }
- /**
- * Move sticky posts to the top of the archive listing.
- */
- public function prepend_sticky_posts( $posts, $query ) {
- if ( !is_admin() && is_main_query() ) {
- // Hook to initialise the categories if none specified.
- if ( empty( $this->categories ) ) {
- $this->categories = apply_filters( ‘sia_sticky_categories’, $this->categories );
- }
- // Only continue if we are viewing a category archive.
- if ( array_key_exists( ‘category_name’, $query->query_vars ) ) {
- $category_matched = false;
- if ( empty( $this->categories ) ) {
- // If no categories were supplied by the apply_filters() then operate on all categories.
- $category_matched = true;
- }
- else {
- // Check whether the current category is in the list.
- $category_matched = in_array( $query->query_vars[‘category_name’], $this->categories );
- }
- if ( $category_matched ) {
- // Copied from the bottom of WP_Query::get_posts() in wp-includes/class-wp-query.php
- $sticky_posts = get_option( ‘sticky_posts’ );
- $num_posts = count( $posts );
- $sticky_offset = 0;
- // Loop over posts and relocate stickies to the front.
- for ( $i = 0; $i < $num_posts; $i++ ) {
- if ( in_array( $posts[ $i ]->ID, $sticky_posts ) ) {
- $sticky_post = $posts[ $i ];
- // Remove sticky from current position
- array_splice( $posts, $i, 1 );
- // Move to front, after other stickies
- array_splice( $posts, $sticky_offset, 0, array( $sticky_post ) );
- // Increment the sticky offset. The next sticky will be placed at this offset.
- $sticky_offset++;
- // Remove post from sticky posts array
- $offset = array_search( $sticky_post->ID, $sticky_posts );
- unset( $sticky_posts[ $offset ] );
- }
- }
- }
- }
- }
- return $posts;
- }
- /**
- * Set the ‘sticky’ post class. get_post_class() only does it on the home page.
- */
- public function set_sticky_post_class( $classes, $class, $post_ID ) {
- // TODO: Consider whether to reference $this->categories.
- if ( is_archive() && is_sticky( $post_ID ) ) {
- $classes[] = ‘sticky’;
- }
- return $classes;
- }
- }
- add_action( ‘after_setup_theme’, array( ‘StickyInCategory’, ‘get_instance’ ) );
温馨提示：
文章标题：WordPress 分类档案页面显示该分类置顶文章
文章链接：https://www.wuyanshuo.cn/1396.html
更新时间：2022年10月04日
本站资源均为两层压缩，第一层7z（后缀若为wys，请自行修改为7z）有解压密码；第二层zip或cbz，无解压密码，可直接使用漫画类软件程序查看；详情可参考解压教程。
本站大部分内容均收集于网络!若内容若侵犯到您的权益，请发送邮件至：service@wuyanshuo.cn我们将第一时间处理！ 资源所需价格并非资源售卖价格，是收集、整理、编辑详情以及本站运营的适当补贴，并且本站不提供任何免费技术支持。 所有资源仅限于参考和学习，版权归原作者所有，更多请阅读无言说网络服务协议。
