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функция не описана

WC_Admin_List_Table_Products::query_filters() protected WC 1.0

Handle any custom filters.

Это метод класса: WC_Admin_List_Table_Products{}

Хуков нет.

Возвращает

Массив.

Использование

// protected - в коде основоного (родительского) или дочернего класса
$result = $this->query_filters( $query_vars );
$query_vars(массив) (обязательный)
Query vars.

Код WC_Admin_List_Table_Products::query_filters() WC 4.5.2

woocommerce/includes/admin/list-tables/class-wc-admin-list-table-products.php
<?php
protected function query_filters( $query_vars ) {
	$this->remove_ordering_args();
	// Custom order by arguments.
	if ( isset( $query_vars['orderby'] ) ) {
		$orderby = strtolower( $query_vars['orderby'] );
		$order   = isset( $query_vars['order'] ) ? strtoupper( $query_vars['order'] ) : 'DESC';

		if ( 'price' === $orderby ) {
			$callback = 'DESC' === $order ? 'order_by_price_desc_post_clauses' : 'order_by_price_asc_post_clauses';
			add_filter( 'posts_clauses', array( $this, $callback ) );
		}

		if ( 'sku' === $orderby ) {
			$callback = 'DESC' === $order ? 'order_by_sku_desc_post_clauses' : 'order_by_sku_asc_post_clauses';
			add_filter( 'posts_clauses', array( $this, $callback ) );
		}
	}

	// Type filtering.
	if ( isset( $query_vars['product_type'] ) ) {
		if ( 'downloadable' === $query_vars['product_type'] ) {
			$query_vars['product_type'] = '';
			add_filter( 'posts_clauses', array( $this, 'filter_downloadable_post_clauses' ) );
		} elseif ( 'virtual' === $query_vars['product_type'] ) {
			$query_vars['product_type'] = '';
			add_filter( 'posts_clauses', array( $this, 'filter_virtual_post_clauses' ) );
		}
	}

	// Stock status filter.
	if ( ! empty( $_GET['stock_status'] ) ) { // phpcs:ignore WordPress.Security.NonceVerification.Recommended
		add_filter( 'posts_clauses', array( $this, 'filter_stock_status_post_clauses' ) );
	}

	// Shipping class taxonomy.
	if ( ! empty( $_GET['product_shipping_class'] ) ) { // phpcs:ignore WordPress.Security.NonceVerification.Recommended
		$query_vars['tax_query'][] = array(
			'taxonomy' => 'product_shipping_class',
			'field'    => 'slug',
			'terms'    => sanitize_title( wp_unslash( $_GET['product_shipping_class'] ) ),
			'operator' => 'IN',
		);
	}

	// Search using CRUD.
	if ( ! empty( $query_vars['s'] ) ) {
		$data_store                   = WC_Data_Store::load( 'product' );
		$ids                          = $data_store->search_products( wc_clean( wp_unslash( $query_vars['s'] ) ), '', true, true );
		$query_vars['post__in']       = array_merge( $ids, array( 0 ) );
		$query_vars['product_search'] = true;
		unset( $query_vars['s'] );
	}

	return $query_vars;
}