Question

我正在尝试按类别显示相关帖子，但是我想排除特定类别，但是它不起作用，我也不知道该如何解决。

<?php
    $terms = get_the_terms( $post->ID, 'category' );

    if ( empty( $terms ) ) {

        $terms = array();
    }

    $term_list = wp_list_pluck( $terms, 'slug' );

    $related_args = array(
        'post_type' => 'post',
        'posts_per_page' => 5,
        'post_status' => 'publish',
        'post__not_in' => array( $post->ID ),
        'orderby' => 'rand',
        'exclude' => 9,
        'tax_query' => array(
            array(
                'taxonomy' => 'category',
                'field' => 'slug',
                'terms' => $term_list
            )
        )
    );

    $my_query = new WP_Query($related_args);

    if( $my_query->have_posts() ) {

        while ($my_query->have_posts()) : 

            $my_query->the_post();
            the_title();
            echo "<br>";

        endwhile;
    }
    wp_reset_query();
?>

Answer 1

在要排除的猫ID上使用减号（-）

$related_args = array(
    'post_type' => 'post',
    'posts_per_page' => 5,
    'post_status' => 'publish',
    'post__not_in' => array( $post->ID ),
    'orderby' => 'rand',
    'cat' => '-9'
);

检查此链接： https://codex.wordpress.org/Class_Reference/WP_Query

查找：排除属于类别的帖子

See Screenshot

Answer 2

让我们假设您要排除类别ID 9，然后在您的$related_args中添加以下税收查询-

'tax_query' => array(
        'relation' => 'AND',
        array(
            'taxonomy' => 'category',
            'field'    => 'slug',
            'terms'    => $term_list,
        ),
        array(
            'taxonomy' => 'category',
            'field'    => 'term_id',
            'terms'    => array( 9 ),
            'operator' => 'NOT IN',
        ),
    ),

Answer 3

在category.php页面中，只需将这段代码放在循环之前

<?php

if ( have_post() ) {
        if (is_category()){
         $category = get_category(get_query_var('cat'));
         $child_cats = array();
     $child_cats = get_term_children($category, 'category');
     query_posts(array('category__not_in' => $child_cats);
         }
   }


 while (have_posts()) : the_post(); $postcount++; ?>

如何从父类别中排除特定的子类别帖子？

3 个答案: