Question

如何将所有woocommerce产品类别划分为单独的mysql表？

Answer 1

使用此代码。注意：听起来你正试图从同一个表中的不同行获取几个数据。

$sql = "SELECT p.id, p.post_title, p.guid, p.post_type, m.meta_key, m.meta_value, meta_sp.meta_value as sale_price, meta_ap.meta_value as additional_price
        FROM wp_posts p
        INNER JOIN wp_postmeta m
        INNER JOIN wp_postmeta meta_sp ON p.id=meta_sp.post_id 
            AND meta_sp.meta_key='sale_price'
        INNER JOIN wp_postmeta meta_ap ON p.id=meta_ap.post_id 
            AND meta_ap.meta_key='additional_price'
        WHERE p.id=m.post_id
        AND m.meta_key='_rentable' AND m.meta_value='yes'
        ";

Answer 2

我正在使用代码方式bcoz我没有找到任何特定的解决方案与mysql查询，因为它的3级深度类别。它的工作和测试代码。

    $all_categories = get_categories(array("taxonomy" => "product_cat", "parent" => 0, "show_count" => true)); 
        foreach ($all_categories as $cat) {
                $category_id = $cat->term_id;       
                $sub = get_categories(array("taxonomy" => "product_cat", "parent" => $category_id));
                $wpdb->query( $wpdb->prepare( "INSERT INTO product_category(cat_id, cat_name, parent_id)
                VALUES ( %d, %s, %d )", array($category_id, $cat->name, $cat->category_parent)));
                if(!empty($sub)){
                    foreach($sub as $subcat){
                        if($subcat->category_parent != ''){
                            $subcatid = $subcat->term_id; 
                            $wpdb->query( $wpdb->prepare( "INSERT INTO product_category(cat_id, cat_name, parent_id)
                            VALUES ( %d, %s, %d )", array($subcatid, $subcat->name, $subcat->category_parent)));
                        }
                            $thirdlevel = get_categories(array("taxonomy" => "product_cat", "parent" => $subcatid));
                            if(!empty($thirdlevel)){
                                foreach($thirdlevel as $thirdcat){
                                    if($thirdcat->category_parent != ''){
                                        $lastcatid = $thirdcat->term_id;
                                        $thirdarray = array('cat_id'=> $lastcatid, 'cat_name'=>$thirdcat->name, 'parent_id'=> $thirdcat->category_parent);
                                    $wpdb->query( $wpdb->prepare( "INSERT INTO product_category(cat_id, cat_name, parent_id)
                                    VALUES ( %d, %s, %d )", array($lastcatid, $thirdcat->name, $thirdcat->category_parent)));
                                    }
                                }
                            }    
                    }
                }
        }

在这些代码之后，您可以使用此查询从新表中获取所有数据。

SELECT t1.cat_id AS lev1，t1.cat_name AS lev1name，t2.cat_id AS cat2，t2.cat_name AS cat2name，t3.cat_id AS lev3，t3.cat_name AS lev4 FROM product_category AS t1 LEFT JOIN product_category AS t2 ON t2.parent_id = t1.cat_id LEFT JOIN product_category AS t3 ON t3.parent_id = t2.cat_id

Woocommerce产品类别分为mysql中的单独表

2 个答案: