在产品搜索查询中添加挂钩

Question

我正在为我的购物网站开发一个插件。该插件是这样工作的。同一产品的颜色变化在不同的产品页面上。产品连接在一起，如下图所示。

并且在产品页面上以小照片的形式显示为产品的颜色变体。

到目前为止它运行完美。但我在我的网站上使用多供应商插件。 .我希望它在选择产品时只搜索属于作者，用户，即商店的产品。

为此，是否可以向 ajax 请求中的查询添加过滤器并重写查询？

Answer 1

add_filter('woocommerce_product_pre_search_products', 'woocommerce_product_pre_search_products', 10, 6);
function woocommerce_product_pre_search_products( $custom_query=false, $term, $type, $include_variations, $all_statuses, $limit) {
        global $wpdb;

        $post_types   = $include_variations ? array( 'product', 'product_variation' ) : array( 'product' );
        $join_query   = '';
        $type_where   = '';
        $status_where = '';
        $limit_query  = '';

        // When searching variations we should include the parent's meta table for use in searches.
        if ( $include_variations ) {
            $join_query = " LEFT JOIN {$wpdb->wc_product_meta_lookup} parent_wc_product_meta_lookup
             ON posts.post_type = 'product_variation' AND parent_wc_product_meta_lookup.product_id = posts.post_parent ";
        }

        /**
         * Hook woocommerce_search_products_post_statuses.
         *
         * @since 3.7.0
         * @param array $post_statuses List of post statuses.
         */
        $post_statuses = apply_filters(
            'woocommerce_search_products_post_statuses',
            current_user_can( 'edit_private_products' ) ? array( 'private', 'publish' ) : array( 'publish' )
        );

        // See if search term contains OR keywords.
        if ( stristr( $term, ' or ' ) ) {
            $term_groups = preg_split( '/\s+or\s+/i', $term );
        } else {
            $term_groups = array( $term );
        }

        $search_where   = '';
        $search_queries = array();

        foreach ( $term_groups as $term_group ) {

                $search_terms = array( $term_group );
            

            $term_group_query = '';
            $searchand        = '';

            foreach ( $search_terms as $search_term ) {
                $like = '%' . $wpdb->esc_like( $search_term ) . '%';

                // Variations should also search the parent's meta table for fallback fields.
                if ( $include_variations ) {
                    $variation_query = $wpdb->prepare( " OR ( wc_product_meta_lookup.sku = '' AND parent_wc_product_meta_lookup.sku LIKE %s ) ", $like );
                } else {
                    $variation_query = '';
                }

                $term_group_query .= $wpdb->prepare( " {$searchand} ( ( posts.post_title LIKE %s) OR ( posts.post_excerpt LIKE %s) OR ( posts.post_content LIKE %s ) OR ( wc_product_meta_lookup.sku LIKE %s ) $variation_query)", $like, $like, $like, $like ); // phpcs:ignore WordPress.DB.PreparedSQL.InterpolatedNotPrepared
                $searchand         = ' AND ';
            }

            if ( $term_group_query ) {
                $search_queries[] = $term_group_query;
            }
        }

        if ( ! empty( $search_queries ) ) {
            $search_where = ' AND (' . implode( ') OR (', $search_queries ) . ') ';
        }

        if ( ! empty( $include ) && is_array( $include ) ) {
            $search_where .= ' AND posts.ID IN(' . implode( ',', array_map( 'absint', $include ) ) . ') ';
        }

        if ( ! empty( $exclude ) && is_array( $exclude ) ) {
            $search_where .= ' AND posts.ID NOT IN(' . implode( ',', array_map( 'absint', $exclude ) ) . ') ';
        }

        $search_where .= ' AND posts.post_author='. get_current_user_id();
        
        if ( 'virtual' === $type ) {
            $type_where = ' AND ( wc_product_meta_lookup.virtual = 1 ) ';
        } elseif ( 'downloadable' === $type ) {
            $type_where = ' AND ( wc_product_meta_lookup.downloadable = 1 ) ';
        }

        if ( ! $all_statuses ) {
            $status_where = " AND posts.post_status IN ('" . implode( "','", $post_statuses ) . "') ";
        }

        if ( $limit ) {
            $limit_query = $wpdb->prepare( ' LIMIT %d ', $limit );
        }

        // phpcs:ignore WordPress.VIP.DirectDatabaseQuery.DirectQuery
        $search_results = $wpdb->get_results(
            // phpcs:disable
            "SELECT DISTINCT posts.ID as product_id, posts.post_parent as parent_id FROM {$wpdb->posts} posts
             LEFT JOIN {$wpdb->wc_product_meta_lookup} wc_product_meta_lookup ON posts.ID = wc_product_meta_lookup.product_id
             $join_query
            WHERE posts.post_type IN ('" . implode( "','", $post_types ) . "')
            $search_where
            $status_where
            $type_where
            ORDER BY posts.post_parent ASC, posts.post_title ASC
            $limit_query
            "
            // phpcs:enable
        );

        $product_ids = wp_parse_id_list( array_merge( wp_list_pluck( $search_results, 'product_id' ), wp_list_pluck( $search_results, 'parent_id' ) ) );

        if ( is_numeric( $term ) ) {
            $post_id   = absint( $term );
            $post_type = get_post_type( $post_id );

            if ( 'product_variation' === $post_type && $include_variations ) {
                $product_ids[] = $post_id;
            } elseif ( 'product' === $post_type ) {
                $product_ids[] = $post_id;
            }

            $product_ids[] = wp_get_post_parent_id( $post_id );
        }

        return wp_parse_id_list( $product_ids );
    }

在产品搜索查询中添加挂钩

add hook in product search query

php

wordpress

woocommerce

hook-woocommerce

product-variations