Question

我有以下查询，将我所有在“帖子”上匹配的子弹移动到自定义帖子类型：

UPDATE `wp_posts` p 
    LEFT OUTER JOIN wp_term_relationships r ON r.object_id = p.ID
    LEFT OUTER JOIN wp_term_taxonomy x ON x.term_taxonomy_id = r.term_taxonomy_id
    LEFT OUTER JOIN wp_terms t ON t.term_id = x.term_id
    SET p.post_type =  'recipe'
    WHERE p.post_type = 'post' AND x.taxonomy = 'category'
    AND t.slug = 'cocktails'
    OR t.slug = 'breakfast'
    OR t.slug = 'cookies-recipes'
    OR t.slug = 'desserts'
    OR t.slug = 'main-course'
    OR t.slug = 'sides'
    OR t.slug = 'soups'
    OR t.slug = 'starters'

问题是，AND x.taxonomy='category'对我不起作用，它会将与“类别”和“ post_tag”相关联的所有子弹都移动了，我如何才能使其仅在寻找“类别”的地方使用呢？只是移到那儿？

Answer 1

也许您正在寻找类似这样的东西...

UPDATE wp_posts p 
  JOIN wp_term_relationships r 
    ON r.object_id = p.ID
  JOIN wp_term_taxonomy x 
    ON x.term_taxonomy_id = r.term_taxonomy_id
  JOIN wp_terms t 
    ON t.term_id = x.term_id
   SET p.post_type = 'recipe'
 WHERE p.post_type = 'post' 
   AND x.taxonomy = 'category'
   AND t.slug IN('cocktails',
                 'breakfast',
                 'cookies-recipes',
                 'desserts',
                 'main-course',
                 'sides',
                 'soups',
                 'starters')

有关更多帮助，请参见：Why should I provide an MCRE for what seems to me to be a very simple SQL query?

如果分类法是“类别”，则移动帖子

1 个答案: