wc_fix_rewrite_rules() │ WC 2.2

Various rewrite rule fixes.

No Hooks.

Returns

array.

Usage

wc_fix_rewrite_rules( $rules );

$rules(array) (required)

Rules.

Changelog

wc_fix_rewrite_rules() wc fix rewrite rules code ^{WC 11.2.1}

function wc_fix_rewrite_rules( $rules ) {
	global $wp_rewrite;

	$permalinks = wc_get_permalink_structure();

	// Fix the rewrite rules when the product permalink have %product_cat% flag.
	if ( preg_match( '`/(.+)(/%product_cat%)`', $permalinks['product_rewrite_slug'], $matches ) ) {
		foreach ( $rules as $rule => $rewrite ) {
			if ( preg_match( '`^' . preg_quote( $matches[1], '`' ) . '/\(`', $rule ) && preg_match( '/^(index\.php\?product_cat)(?!(.*product))/', $rewrite ) ) {
				unset( $rules[ $rule ] );
			}
		}
	}

	$shop_page_id      = wc_get_page_id( 'shop' );
	$product_base      = trim( rawurldecode( $permalinks['product_base'] ), '/' );
	$uses_shop_as_base = false;

	// The product base is site-wide, while multilingual extensions can filter the Shop page for the current request.
	$shop_page_ids = array_unique( array( absint( get_option( 'woocommerce_shop_page_id' ) ), $shop_page_id ) );
	foreach ( $shop_page_ids as $candidate_shop_page_id ) {
		$shop_page = $candidate_shop_page_id > 0 ? get_post( $candidate_shop_page_id ) : null;
		$shop_base = $shop_page instanceof WP_Post && 'page' === $shop_page->post_type ? trim( rawurldecode( (string) get_page_uri( $candidate_shop_page_id ) ), '/' ) : '';

		if ( '' !== $shop_base && ( $shop_base === $product_base || 0 === strpos( $product_base, $shop_base . '/' ) ) ) {
			$uses_shop_as_base = true;
			break;
		}
	}

	if ( ! $uses_shop_as_base ) {
		return $rules;
	}

	if ( $shop_page_id ) {
		$page_rewrite_rules = array();
		$subpages           = wc_get_page_children( $shop_page_id );

		// Subpage rules.
		foreach ( $subpages as $subpage ) {
			$uri                                = get_page_uri( $subpage );
			$page_rewrite_rules[ $uri . '/?$' ] = 'index.php?pagename=' . $uri;
			$wp_generated_rewrite_rules         = $wp_rewrite->generate_rewrite_rules( $uri, EP_PAGES, true, true, false, false );
			foreach ( $wp_generated_rewrite_rules as $key => $value ) {
				$wp_generated_rewrite_rules[ $key ] = $value . '&pagename=' . $uri;
			}
			$page_rewrite_rules = array_merge( $page_rewrite_rules, $wp_generated_rewrite_rules );
		}

		// Merge with rules.
		$rules = array_merge( $page_rewrite_rules, $rules );
	}

	return $rules;
}