根据分配的分类术语按商店经理过滤 WooCommerce 订单

Question

我想将带有特定产品标签的订单分配给后端的特定商店经理并隐藏其余订单。

我目前正在使用Order Splitter for WooCommerce 免费插件将订单按项目（产品）拆分为单独的订单。

我发现了一个非常好的解决方案，可以使用产品类型来过滤订单：Filter orders by product post type in WooCommerce admin orders list page，我尝试对其进行编辑以仅显示特定的产品标签，但是没有成功。我做错了什么？

产品标签名为“brand1”，店长账号ID为7。

add_action( 'restrict_manage_posts', 'admin_shop_order_by_product_type_filter' );    
function admin_shop_order_by_product_type_filter(){
    global $pagenow, $post_type;
    $whoisin = get_current_user_id();
    if( 'shop_order' === $post_type && 'edit.php' === $pagenow && ($whoisin == 7) ) {
        $domain     = 'woocommerce';
        $filter_id  = 'brand1';
        $current    = isset($_GET[$filter_id])? $_GET[$filter_id] : '';
        $query_args = ['taxonomy' => 'product_tag', 'fields' => 'names', 'orderby' => 'order'];



        echo '<select name="'.$filter_id.'">
        <option value="">' . __('Filter by Product Tag', $domain) . '</option>';

        foreach ( get_terms($query_args) as $term_name ) {
            printf( '<option value="%s"%s>%s</option>', $term_name,
                $term_name === $current ? '" selected="selected"' : '', ucfirst($term_name) );
        }
        echo '</select>';
    }
} 


add_action( 'pre_get_posts','process_admin_shop_order_product_type_filter' );
function process_admin_shop_order_product_type_filter( $query ) { 
    global $pagenow, $post_type, $wpdb;

    $filter_id = 'brand1';
    $whoisin = get_current_user_id();

    if ( $query->is_admin && 'edit.php' === $pagenow && 'shop_order' === $post_type
         && isset( $_GET[$filter_id] ) && $_GET[$filter_id] != '' && ($whoisin == 7)) {

        $order_ids = $wpdb->get_col( "
            SELECT DISTINCT o.ID
            FROM {$wpdb->prefix}posts o
            INNER JOIN {$wpdb->prefix}woocommerce_order_items oi
                ON oi.order_id = o.ID
            INNER JOIN {$wpdb->prefix}woocommerce_order_itemmeta oim
                ON oi.order_item_id = oim.order_item_id
            INNER JOIN {$wpdb->prefix}term_relationships tr
                ON oim.meta_value = tr.object_id
            INNER JOIN {$wpdb->prefix}term_taxonomy tt
                ON tr.term_taxonomy_id = tt.term_taxonomy_id
            INNER JOIN {$wpdb->prefix}terms t
                ON tt.term_id = t.term_id
            WHERE o.post_type = '$post_type'
            AND oim.meta_key = '_product_id'
            AND tt.taxonomy = 'product_tag'
            AND t.name = '{$_GET[$filter_id]}'
        ");

        $query->set( 'post__in', $order_ids ); // Set the new "meta query"

        $query->set( 'posts_per_page', 25 ); // Set "posts per page"

        $query->set( 'paged', ( get_query_var('paged') ? get_query_var('paged') : 1 ) ); // Set "paged"
    }                                                                                           
}

Answer 1

以下更改后的代码将根据分配给商店经理（用户 ID）的相关产品标签显示订单。

在第一个函数中，您将按商店经理（用户 ID）分配产品标签。然后将为每个商店经理过滤不同的订单，仅显示他们分配的订单。只有定义的用户 ID 才会过滤订单。

代码：

// Settings function
function orders_by_shop_manager_settings(){// Your settings below
    // Your settings below
    return array(
        // Terms field type (can be 'name', 'slug' or 'term_id')
        'field'     => 'slug',
        // The taxonomy for product tags (brands)
        'taxonomy'  => 'product_tag',
        // Manager ID / product tags terms pairs (set the correct term field type as defined before)
        'assignments' => array(
            '7'     => array('brand1','brand7', 'brand9'),
            '12'    => array('brand3','brand5', 'brand6', 'brand8'),
            '189'   => array('brand2','brand4'),
        )
    );
}

// Filtering orders by shop manager based on items product tag(s)
add_action( 'pre_get_posts','filter_orders_by_shop_manager' );
function filter_orders_by_shop_manager( $query ) {
    global $pagenow, $typenow, $wpdb;

    if ( $query->is_admin && 'edit.php' === $pagenow && 'shop_order' === $typenow ) {
        // Loading settings data
        $data    = orders_by_shop_manager_settings();
        $user_id = get_current_user_id();
    }

    if( isset($data) && isset($data['assignments'][$user_id]) ) {
        $taxonomy   = $data['taxonomy'];
        $field      = $data['field'];
        $terms      = $data['assignments'][$user_id];

        $order_ids = $wpdb->get_col( "
            SELECT DISTINCT o.ID
            FROM {$wpdb->prefix}posts o
            INNER JOIN {$wpdb->prefix}woocommerce_order_items oi
                ON oi.order_id = o.ID
            INNER JOIN {$wpdb->prefix}woocommerce_order_itemmeta oim
                ON oi.order_item_id = oim.order_item_id
            INNER JOIN {$wpdb->prefix}term_relationships tr
                ON oim.meta_value = tr.object_id
            INNER JOIN {$wpdb->prefix}term_taxonomy tt
                ON tr.term_taxonomy_id = tt.term_taxonomy_id
            INNER JOIN {$wpdb->prefix}terms t
                ON tt.term_id = t.term_id
            WHERE o.post_type = '$typenow'
            AND oim.meta_key IN ( '_product_id','_variation_id' )
            AND tt.taxonomy = '$taxonomy'
            AND t.$field IN ( '" . implode( "','", $terms ) . "' )
        ");

        if ( count($order_ids) > 0 ) {
            $query->set( 'post__in', $order_ids ); // Set the new "meta query"
            $query->set( 'posts_per_page', 25 );
        } else {
            $query->set( 'author__in', 99999999 );
        }
    }
}

代码在您的活动子主题（或活动主题）的functions.php 文件中。经过测试和工作。