还使用 SQL 查询获取 WooCommerce 产品类别缩略图 ID

如何解决还使用 SQL 查询获取 WooCommerce 产品类别缩略图 ID

我在 WooCommerce 中使用 WordPress,我编写了以下 SQL 查询,该查询获取产品类别术语 ID 名称和 slug:

SELECT t.term_id AS id,t.name AS post_title,t.slug AS post_url
FROM   wp_terms t 
LEFT JOIN wp_term_taxonomy tt ON t.term_id = tt.term_id
WHERE  tt.taxonomy = 'product_cat'
ORDER  BY name

我应该如何更改此 SQL 查询以获取产品类别缩略图 ID?

注意:我只对 SQL 查询感兴趣,而不对 WP_Query 之类的其他任何东西感兴趣。

解决方法

要在您的 WooCommerce 产品类别术语的 SQL 查询中额外获取缩略图 ID,您可以改用以下内容:

SELECT t.term_id AS id,t.name AS post_title,t.slug AS post_url,tm.meta_value AS thumb_id 
FROM   wp_terms t 
LEFT JOIN wp_term_taxonomy tt ON t.term_id = tt.term_id
LEFT JOIN wp_termmeta tm ON t.term_id = tm.term_id
WHERE  tt.taxonomy = 'product_cat'
AND tm.meta_key = 'thumbnail_id'
ORDER BY t.name

经过测试并有效。

,

我的建议是查看 WooCommerce 提供的 REST API,而不是依赖 MySQL 查询。

根据您的需要,合适的人选是

Get Category API 服务

其中有您期望的详细信息

{
  "id": 9,"name": "Clothing","slug": "clothing","parent": 0,"description": "","display": "default","image": {
    "id": 730,"date_created": "2017-03-23T00:01:07","date_created_gmt": "2017-03-23T03:01:07","date_modified": "2017-03-23T00:01:07","date_modified_gmt": "2017-03-23T03:01:07","src": "https://example.com/wp-content/uploads/2017/03/T_2_front.jpg","name": "","alt": ""
  },"menu_order": 0,"count": 36,"_links": {
    "self": [
      {
        "href": "https://example.com/wp-json/wc/v3/products/categories/9"
      }
    ],"collection": [
      {
        "href": "https://example.com/wp-json/wc/v3/products/categories"
      }
    ]
  }
}

对于多个类别

List all product categories

示例输出如下:

[
  {
    "id": 15,"name": "Albums","slug": "albums","parent": 11,"image": [],"count": 4,"_links": {
      "self": [
        {
          "href": "https://example.com/wp-json/wc/v3/products/categories/15"
        }
      ],"collection": [
        {
          "href": "https://example.com/wp-json/wc/v3/products/categories"
        }
      ],"up": [
        {
          "href": "https://example.com/wp-json/wc/v3/products/categories/11"
        }
      ]
    }
  },{
    "id": 9,"image": {
      "id": 730,"alt": ""
    },"_links": {
      "self": [
        {
          "href": "https://example/wp-json/wc/v3/products/categories/9"
        }
      ],"collection": [
        {
          "href": "https://example/wp-json/wc/v3/products/categories"
        }
      ]
    }
  },{
    "id": 10,"name": "Hoodies","slug": "hoodies","parent": 9,"count": 6,"_links": {
      "self": [
        {
          "href": "https://example.com/wp-json/wc/v3/products/categories/10"
        }
      ],"up": [
        {
          "href": "https://example.com/wp-json/wc/v3/products/categories/9"
        }
      ]
    }
  }
]

All product categories API 上,请检查可用参数,其中一些重要参数是:

  1. 页面
  2. 每页
  3. 搜索
  4. hide_empty

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