Wordpress无wp函数的自定义元查询（wo。wp_query（））

Question

我不得不从wp_query的wordpress数据库中提取标题，描述和附件。我不能让如何在同一时间取两者附件和meta_descriptions ...

这是我的查询看起来像到目前为止

$query="SELECT post_title, meta_value 
FROM wp_posts p JOIN wp_postmeta pm ON p.ID=pm.post_id 
WHERE post_status='publish' 
AND post_type='page' 
AND post_parent=2330 
AND (meta_key='_wpseo_edit_description' OR meta_key='_wp_attached_file') 
ORDER BY post_date DESC"; 

该查询返回“翻番”的结果我有循环

______________________________ 
| post_title | meta_value | 
|------------|---------------| 
| title 1 | 1349   | 
|------------|---------------| 
| title 1 | description 1 | 
|------------|---------------| 
| title 2 | 1348   | 
|------------|---------------| 
| title 2 | description 2 | 
|____________|_______________| 

Answer 1

您wlil需要加入到wp_postmeta表，以获得任何的附加信息，如文件附件或自定义字段中分裂。

的如何做到这一点的一个例子：然后

SELECT p.*, pm2.meta_value AS featured_image, pm3.meta_value AS wpseo_edit_description, pm4.meta_value AS wp_attached_file 
FROM `wp_posts` p 
LEFT JOIN `wp_postmeta` pm2 ON p.ID = pm2.post_id AND pm2.meta_key = 'wp_attached_file' 
LEFT JOIN `wp_postmeta` pm3 ON p.ID = pm3.post_id AND pm3.meta_key = '_wpseo_edit_description' 
LEFT JOIN `wp_postmeta` pm4 ON p.ID = pm4.post_id AND pm4.meta_key = '_wp_attached_file' 
WHERE p.post_status = 'publish' 
AND p.post_type = 'page' 
AND p.post_parent = 2330 

正常后字段（后标题，说明，身份证等）将可用，与featured_image，wp_attached_file和wpseo_edit_description沿。