Question

这是我目前从wordpress wp_post表中获取热门帖子的代码。如何排除3或4类别中的那些？

$popularposts = "SELECT ID,post_title FROM {$wpdb->prefix}posts WHERE post_status = 'publish' AND post_type = 'post' ORDER BY comment_count DESC LIMIT 0,".$pop_posts;
$posts = $wpdb->get_results($popularposts);

Answer 1

在'发布'之后添加（假设类别的字段是类别）

and categorie not in ('3', '4')

或者，如果类别是数字：

and (categorie < 3 or categeorie > 4)

Answer 2

通过网络和stackoverflow挖掘，几乎解决了问题。我还需要添加

ORDER BY comment_count DESC LIMIT 0,".$pop_posts

以下代码中的某处。

$popularposts  = "SELECT * FROM $wpdb->posts 
INNER JOIN $wpdb->term_relationships ON($wpdb->posts.ID = $wpdb->term_relationships.object_id)  
INNER JOIN $wpdb->term_taxonomy ON($wpdb->term_relationships.term_taxonomy_id = $wpdb->term_taxonomy.term_taxonomy_id)  

WHERE ($wpdb->term_taxonomy.term_id <> 3  
   AND $wpdb->term_taxonomy.term_id <> 4  
   AND $wpdb->term_taxonomy.taxonomy = 'category'   
   AND $wpdb->posts.post_type = 'post'  
   AND $wpdb->posts.post_status = 'publish')";

如何在SQL语句中排除某些类别

2 个答案: