如何使 "coupon amount" 列在 WooCommerce 中可排序

Question

与以下教程不同：“Columns in WooCommerce”，目的是使 优惠券金额 列可根据金额排序。

使用我已经编写的代码使其可排序似乎是成功的。然而，排序规则出错了。

我之前尝试过几种方法，但点击后排序代码没有应用，

谁愿意仔细看看？

目前我用过的：

add_filter('manage_edit-shop_coupon_sortable_columns', 'misha_sortable');
function misha_sortable( $sortable_columns ){
    $sortable_columns['amount'] = 'amount';

    return $sortable_columns;
}

add_action( 'pre_get_posts', 'misha_filter' );
 
function misha_filter( $query ) {
    // if it is not admin area, exit the filter immediately
    if ( ! is_admin() ) return;
 
    if( empty( $_GET['orderby'] ) || empty( $_GET['order'] ) ) return;
 
    if( $_GET['orderby'] == 'amount' ) {
        $query->set('meta_key', 'amount' );
        $query->set('orderby', 'meta_value'); // or meta_value_num
        $query->set('order', $_GET['order'] );
    }
 
    return $query;
 
}

Answer 1

正确的元键是 coupon_amount 而不是 amount

所以这应该足够了

// Make column sortable
function filter_manage_edit_shop_coupon_sortable_columns( $columns ) {
    $columns['amount'] = 'amount';

    return $columns;
}
add_filter( 'manage_edit-shop_coupon_sortable_columns', 'filter_manage_edit_shop_coupon_sortable_columns', 10, 1 );

// Fires after the query variable object is created, but before the actual query is run.
function action_pre_get_posts( $query ) {
    // If it is not admin area, exit the filter immediately
    if( ! is_admin() ) return;

    // Get orderby
    $orderby = $query->get( 'orderby' );

    // Set query
    if( $orderby == 'amount' ) {
        $query->set( 'meta_key', 'coupon_amount' );
        $query->set( 'orderby', 'meta_value_num' );
    }
}
add_action( 'pre_get_posts', 'action_pre_get_posts', 10, 1 );

如何使 "coupon amount" 列在 WooCommerce 中可排序

How to make the "coupon amount" column sortable in WooCommerce

php

wordpress

coupon

woocommerce

hook-woocommerce