WC_Tax::get_matched_tax_rates() │ private static │ WC 1.0

Loop through a set of tax rates and get the matching rates (1 per priority).

Метод класса: WC_Tax{}

Хуки из метода

Возвращает

Массив.

Использование

$result = WC_Tax::get_matched_tax_rates( $country, $state, $postcode, $city, $tax_class );
$country(строка) (обязательный)
Country code to match against.
$state(строка) (обязательный)
State code to match against.
$postcode(строка) (обязательный)
Postcode to match against.
$city(строка) (обязательный)
City to match against.
$tax_class(строка) (обязательный)
Tax class to match against.

Код WC_Tax::get_matched_tax_rates() WC 9.5.1

woocommerce/includes/class-wc-tax.php 
private static function get_matched_tax_rates( $country, $state, $postcode, $city, $tax_class ) {
	global $wpdb;

	// Query criteria - these will be ANDed.
	$criteria   = array();
	$criteria[] = $wpdb->prepare( "tax_rate_country IN ( %s, '' )", strtoupper( $country ) );
	$criteria[] = $wpdb->prepare( "tax_rate_state IN ( %s, '' )", strtoupper( $state ) );
	$criteria[] = $wpdb->prepare( 'tax_rate_class = %s', sanitize_title( $tax_class ) );

	// Pre-query postcode ranges for PHP based matching.
	$postcode_search = wc_get_wildcard_postcodes( $postcode, $country );
	$postcode_ranges = $wpdb->get_results( "SELECT tax_rate_id, location_code FROM {$wpdb->prefix}woocommerce_tax_rate_locations WHERE location_type = 'postcode' AND location_code LIKE '%...%';" );

	if ( $postcode_ranges ) {
		$matches = wc_postcode_location_matcher( $postcode, $postcode_ranges, 'tax_rate_id', 'location_code', $country );
		if ( ! empty( $matches ) ) {
			foreach ( $matches as $matched_postcodes ) {
				$postcode_search = array_merge( $postcode_search, $matched_postcodes );
			}
		}
	}

	$postcode_search = array_unique( $postcode_search );

	/**
	 * Location matching criteria - ORed
	 * Needs to match:
	 * - rates with no postcodes and cities
	 * - rates with a matching postcode and city
	 * - rates with matching postcode, no city
	 * - rates with matching city, no postcode
	 */
	$locations_criteria   = array();
	$locations_criteria[] = 'locations.location_type IS NULL';
	$locations_criteria[] = "
		locations.location_type = 'postcode' AND locations.location_code IN ('" . implode( "','", array_map( 'esc_sql', $postcode_search ) ) . "')
		AND (
			( locations2.location_type = 'city' AND locations2.location_code = '" . esc_sql( strtoupper( $city ) ) . "' )
			OR NOT EXISTS (
				SELECT sub.tax_rate_id FROM {$wpdb->prefix}woocommerce_tax_rate_locations as sub
				WHERE sub.location_type = 'city'
				AND sub.tax_rate_id = tax_rates.tax_rate_id
			)
		)
	";
	$locations_criteria[] = "
		locations.location_type = 'city' AND locations.location_code = '" . esc_sql( strtoupper( $city ) ) . "'
		AND NOT EXISTS (
			SELECT sub.tax_rate_id FROM {$wpdb->prefix}woocommerce_tax_rate_locations as sub
			WHERE sub.location_type = 'postcode'
			AND sub.tax_rate_id = tax_rates.tax_rate_id
		)
	";

	$criteria[] = '( ( ' . implode( ' ) OR ( ', $locations_criteria ) . ' ) )';

	$criteria_string = implode( ' AND ', $criteria );

	// phpcs:disable WordPress.DB.PreparedSQL.NotPrepared, WordPress.DB.PreparedSQL.InterpolatedNotPrepared
	$found_rates = $wpdb->get_results(
		"
		SELECT tax_rates.*, COUNT( locations.location_id ) as postcode_count, COUNT( locations2.location_id ) as city_count
		FROM {$wpdb->prefix}woocommerce_tax_rates as tax_rates
		LEFT OUTER JOIN {$wpdb->prefix}woocommerce_tax_rate_locations as locations ON tax_rates.tax_rate_id = locations.tax_rate_id
		LEFT OUTER JOIN {$wpdb->prefix}woocommerce_tax_rate_locations as locations2 ON tax_rates.tax_rate_id = locations2.tax_rate_id
		WHERE 1=1 AND {$criteria_string}
		GROUP BY tax_rates.tax_rate_id
		ORDER BY tax_rates.tax_rate_priority
		"
	);
	// phpcs:enable

	$found_rates       = self::sort_rates( $found_rates );
	$matched_tax_rates = array();
	$found_priority    = array();

	foreach ( $found_rates as $found_rate ) {
		if ( in_array( $found_rate->tax_rate_priority, $found_priority, true ) ) {
			continue;
		}

		$matched_tax_rates[ $found_rate->tax_rate_id ] = array(
			'rate'     => (float) $found_rate->tax_rate,
			'label'    => $found_rate->tax_rate_name,
			'shipping' => $found_rate->tax_rate_shipping ? 'yes' : 'no',
			'compound' => $found_rate->tax_rate_compound ? 'yes' : 'no',
		);

		$found_priority[] = $found_rate->tax_rate_priority;
	}

	return apply_filters( 'woocommerce_matched_tax_rates', $matched_tax_rates, $country, $state, $postcode, $city, $tax_class );
}