使用 woocommerce 在自定义排序中添加 meta_type [英] Add meta_type in custom sorting using woocommerce

问题描述

我正在使用以下代码在 woocommerce 中进行自定义排序.这工作正常.唯一的问题是我必须根据数字进行排序.我使用了 meta_type = UNSIGNED 但这不起作用.

I am using below code for custom sorting in woocommerce. This is working fine. The only thing is that I have to sort according to numbers. I have used meta_type = UNSIGNED but this is not working.

add_filter( 'woocommerce_get_catalog_ordering_args', 'custom_woocommerce_get_catalog_ordering_args' );

function custom_woocommerce_get_catalog_ordering_args( $args ) {
   $orderby_value = isset( $_GET['orderby'] ) ? woocommerce_clean( $_GET['orderby'] ) :    apply_filters( 'woocommerce_default_catalog_orderby', get_option( 'woocommerce_default_catalog_orderby' ) );

 if ( 'timer' == $orderby_value ) {
    $args['meta_key']   = '_auction_dates_to_time';
    $args['meta_type']  = 'UNSIGNED';
    $args['orderby']    = "meta_value";
    $args['order']      = 'ASC';
    $args['paged']      = $paged;
} 
if ( 'timer-desc' == $orderby_value ) {
    $args['meta_key']   = '_auction_dates_to_time';
    $args['meta_type']  = 'UNSIGNED';
    $args['orderby']    = "meta_value";
    $args['order']      = 'DESC';
    $args['paged']      = $paged;
 } 
return $args;
}

add_filter( 'woocommerce_default_catalog_orderby_options', 'custom_woocommerce_catalog_orderby' );
add_filter( 'woocommerce_catalog_orderby', 'custom_woocommerce_catalog_orderby' );

function custom_woocommerce_catalog_orderby( $sortby ) {
   $sortby['timer']   = 'Sort by Bid End Time: low to high';
   $sortby['timer-desc'] = 'Sort by Bid End Time: high to low';
   return $sortby;
}

请帮助我解决这个问题.

Please HELP me on this issue.

谢谢

推荐答案

再次阅读文档和源代码.无论您在查询中将 meta_type 设置为什么(实际上被忽略了，文档中没有这样的参数)，实际数据仍然存储在 wp_postmeta 表中，<具有 LONGTEXT 类型的 code>meta_value 列.对 LONGTEXT 列进行排序应该会给你这些结果.这就是字典顺序的工作方式.

Read the docs and the sources again. Regardless of what you set meta_type to in the query (it's actually ignored, there's no such parameter in the docs), the actual data is still stored in the wp_postmeta table, meta_value column that has a LONGTEXT type. Sorting on a LONGTEXT column is supposed to give you those results. That's the way lexicographic order works.

唯一你能做的就是将该列转换为数字类型，从而告诉数据库它应该进行数字排序.您可以使用自定义 SQL 查询来执行此操作，或使用this 内置 WP_Query 功能:

The only thing you can do is CAST that column to a numeric type thus telling the database it should do a numeric sort. You do that with a custom SQL query, or use this built-in WP_Query feature:

orderby (string | array) - 按参数对检索到的帖子进行排序

orderby (string | array) - Sort retrieved posts by parameter

'meta_value_num' - 按数字元值排序(可用于2.8 版).另请注意，还必须存在meta_key=keyname"在查询中.该值允许进行如上所述的数字排序在元值"中.

'meta_value_num' - Order by numeric meta value (available with Version 2.8). Also note that a 'meta_key=keyname' must also be present in the query. This value allows for numerical sorting as noted above in 'meta_value'.

幸运的是，woocommerce 通过设置:$args['orderby'] = "meta_value_num"; 因为 $args 直接发送到 WP_Query.

Luckily woocommerce exposes exactly that by setting: $args['orderby'] = "meta_value_num"; because $args is directly sent to WP_Query.

这个告诉WP_Query 将 cast meta_value 转换为数字类型(使用 +0):

This tells WP_Query to cast meta_value to a numeric type (using +0):

case 'meta_value_num':
    $orderby = "$wpdb->postmeta.meta_value+0";
    break;

这篇关于使用 woocommerce 在自定义排序中添加 meta_type的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！