使用 SQL 查询从数据库中获取 WooCommerce 单一产品数据

Question

我正在尝试从 woocommerce 中的 woocommerce_single_product_summary 的数据库中获取原始数据。我需要在外部使用数据，但我无法弄清楚它是如何放置在数据库中的，我可以通过以下方式收集我需要的所有其他信息：

SELECT product.ID as product_id, product.post_title as product_name, replace(product.post_content, '"', "'") as product_content, product_sku.meta_value as product_sku, product_price.meta_value as product_price, product_weight.meta_value as product_weight
FROM clk_692135435d_wp_posts as product
LEFT JOIN clk_692135435d_wp_postmeta as product_sku ON product.ID = product_sku.post_ID
LEFT JOIN clk_692135435d_wp_postmeta as product_price ON product.ID = product_price.post_ID
LEFT JOIN clk_692135435d_wp_postmeta as product_weight ON product.ID = product_weight.post_ID
LEFT JOIN clk_692135435d_wp_postmeta as product_desc ON product.ID = product_weight.post_ID
WHERE (product.post_type = 'product' OR product.post_type = 'product_variation') AND product_sku.meta_key = '_sku' AND product_price.meta_key = '_price' AND product_weight.meta_key = '_weight'
ORDER BY product_id ASC;

Answer 1

要从 wp_postmeta table 获取正确的所需元键，您必须通过 phpMyAdmin 查看数据库中的 wp_postmeta table 给定产品 ID (post_id).

那么你最好使用这种更轻量的 SQL 查询：

SELECT p.`ID`       AS product_id,
   p.`post_title`   AS product_name,
   p.`post_excerpt` AS product_short_description,
   p.`post_content` AS product_description,

   Max(CASE WHEN pm.meta_key = '_sku'            AND p.`ID` = pm.`post_id` THEN pm.`meta_value` END) AS product_sku,
   Max(CASE WHEN pm.meta_key = '_price'          AND p.`ID` = pm.`post_id` THEN pm.`meta_value` END) AS product_price,
   Max(CASE WHEN pm.meta_key = '_stock_status'   AND p.`ID` = pm.`post_id` THEN pm.`meta_value` END) AS product_stock_status,
   Max(CASE WHEN pm.meta_key = '_stock'          AND p.`ID` = pm.`post_id` THEN pm.`meta_value` END) AS product_stock_qty,
   Max(CASE WHEN pm.meta_key = '_weight'         AND p.`ID` = pm.`post_id` THEN pm.`meta_value` END) AS product_weight,
   Max(CASE WHEN pm.meta_key = '_length'         AND p.`ID` = pm.`post_id` THEN pm.`meta_value` END) AS product_length,
   Max(CASE WHEN pm.meta_key = '_width'          AND p.`ID` = pm.`post_id` THEN pm.`meta_value` END) AS product_width,
   Max(CASE WHEN pm.meta_key = '_height'         AND p.`ID` = pm.`post_id` THEN pm.`meta_value` END) AS product_height,
   Max(CASE WHEN pm.meta_key = '_thumbnail_id'   AND p.`ID` = pm.`post_id` THEN pm.`meta_value` END) AS product_image_id

FROM   `clk_692135435d_wp_posts` AS p
   INNER JOIN `clk_692135435d_wp_postmeta` AS pm
   ON  p.`ID` = pm.`post_id`

WHERE  p.`post_type`   = 'product'
   AND p.`post_status` = 'publish'

GROUP  BY p.`ID`
ORDER  BY p.`ID` ASC;

已测试并有效。

因此您需要来自 wp_postmeta table 的每个必需的元数据键/值对，您必须在 SQL 查询 中添加以下行（以逗号分隔）:

Max(CASE WHEN pm.meta_key = '_the_meta_key'   AND p.`ID` = pm.`post_id` THEN pm.`meta_value` END) AS the_column_name

其中 _the_meta_key 是所需的 meta_key，the_column_name 是所需的列名称。

使用 SQL 查询从数据库中获取 WooCommerce 单一产品数据

Get WooCommerce single products data from database with a SQL query

sql

wordpress

product

metadata

woocommerce