为什么我的自定义帖子类型无法使用WP_QUERY（） _WordPress开发

我创建了一个相关的post函数, 并将其添加到wordpress functions.php中。

function related_posts($args = array()) { global $post; // default args $args = wp_parse_args($args, array( 'post_id' => !empty($post) ? $post-> ID : '', 'taxonomy' => 'category', 'limit' => 4, 'post_type' => !empty($post) ? $post-> post_type : 'post', 'orderby' => 'date', 'order' => 'DESC' )); // check taxonomy if (!taxonomy_exists($args['taxonomy'])) { return; }// post taxonomies $taxonomies = wp_get_post_terms($args['post_id'], $args['taxonomy'], array('fields' => 'ids')); if (empty($taxonomies)) { return; }// query //$related_posts = get_posts(array( $related_posts = new WP_Query(array( 'post__not_in' => (array) $args['post_id'], 'post_type' => $args['post_type'], 'tax_query' => array( array( 'taxonomy' => $args['taxonomy'], 'field' => 'term_id', 'terms' => $taxonomies ), ), 'posts_per_page' => $args['limit'], 'orderby' => $args['orderby'], 'order' => $args['order'] )); if$related_posts ) { echo 'ok'; } else { echo 'not ok'; } ?> < ?php if (!empty($related_posts)) { ?> < h3 class="widget-title"> < ?php _e('< h5 class="title is-6"> You Might Also Like< /h5> ', 'http://localhost/wordpress_john/wordpress1/'); ?> < /h3> < div class="columns"> < ?php include( locate_template('related-posts-template.php', false, false) ); ?> < /div> < ?php } ?> < ?php wp_reset_postdata(); }// related posts add_action( 'comment_form_before', 'related_posts', 10, 0 ) ;

【为什么我的自定义帖子类型无法使用WP_QUERY（）】我创建了一个自定义帖子(post_type => ’ custom’ )及其模板等, 它们工作正常。但是, 当查看者查看来自single-custom.php的自定义帖子时, 此代码未显示相关帖子。最初, 此代码与get_posts一起使用, 由于代码从get_posts返回空, 所以我将其转换为WP_QUERY, 为什么？ Single.php的帖子按原样显示了相关帖子, 但不显示single-custom.php。然后我将其转换为WP_QUERY, 因为对get_posts进行了一些限制, 然后对WP_QUERY进行了限制, 但自定义帖子(single-custom.php)仍未显示任何相关的帖子, 但此处填充了变量$ related_posts。帮帮我！
#1试试这个工作代码：

< ?php $customTaxonomyTerms = wp_get_object_terms( $post-> ID, 'category', array('fields' => 'ids') ); $args = array( 'post_type' => 'events', 'post_status' => 'publish', 'posts_per_page' => 5, 'orderby' => 'rand', 'tax_query' => array( array( 'taxonomy' => 'category', 'field' => 'id', 'terms' => $customTaxonomyTerms ) ), 'post__not_in' => array ($post-> ID), ); //the query $relatedPosts = new WP_Query( $args ); //loop through query if($relatedPosts-> have_posts()){ echo '< ul> '; while($relatedPosts-> have_posts()){ $relatedPosts-> the_post(); ?> < li> < a href="http://www.srcmini.com/< ?php the_permalink(); ?>"> < ?php the_title(); ?> < /a> < /li> < ?php } echo '< /ul> '; }else{ //no posts found } wp_reset_postdata(); ?>