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функция не описана

WC_Install::create_tables() private WC 1.0

Set up the database tables which the plugin needs to function. WARNING: If you are modifying this method, make sure that its safe to call regardless of the state of database.

This is called from install method and is executed in-sync when WC is installed or updated. This can also be called optionally from verify_base_tables.

TODO: Add all crucial tables that we have created from workers in the past.


woocommerce_attribute_taxonomies - Table for storing attribute taxonomies - these are user defined
woocommerce_downloadable_product_permissions - Table for storing user and guest download permissions.
	KEY(order_id, product_id, download_id) used for organizing downloads on the My Account page
woocommerce_order_items - Order line items are stored in a table to make them easily queryable for reports
woocommerce_order_itemmeta - Order line item meta is stored in a table for storing extra data.
woocommerce_tax_rates - Tax Rates are stored inside 2 tables making tax queries simple and efficient.
woocommerce_tax_rate_locations - Each rate can be applied to more than one postcode/city hence the second table.

{} Это метод класса: WC_Install{}

Хуков нет.


Null. Ничего.


$result = WC_Install::create_tables();

Код WC_Install::create_tables() WC 5.0.0

private static function create_tables() {
	global $wpdb;


	require_once ABSPATH . 'wp-admin/includes/upgrade.php';

	 * Before updating with DBDELTA, remove any primary keys which could be
	 * modified due to schema updates.
	if ( $wpdb->get_var( "SHOW TABLES LIKE '{$wpdb->prefix}woocommerce_downloadable_product_permissions';" ) ) {
		if ( ! $wpdb->get_var( "SHOW COLUMNS FROM `{$wpdb->prefix}woocommerce_downloadable_product_permissions` LIKE 'permission_id';" ) ) {
			$wpdb->query( "ALTER TABLE {$wpdb->prefix}woocommerce_downloadable_product_permissions DROP PRIMARY KEY, ADD `permission_id` BIGINT UNSIGNED NOT NULL PRIMARY KEY AUTO_INCREMENT;" );

	 * Change wp_woocommerce_sessions schema to use a bigint auto increment field instead of char(32) field as
	 * the primary key as it is not a good practice to use a char(32) field as the primary key of a table and as
	 * there were reports of issues with this table (see https://github.com/woocommerce/woocommerce/issues/20912).
	 * This query needs to run before dbDelta() as this WP function is not able to handle primary key changes
	 * (see https://github.com/woocommerce/woocommerce/issues/21534 and https://core.trac.wordpress.org/ticket/40357).
	if ( $wpdb->get_var( "SHOW TABLES LIKE '{$wpdb->prefix}woocommerce_sessions'" ) ) {
		if ( ! $wpdb->get_var( "SHOW KEYS FROM {$wpdb->prefix}woocommerce_sessions WHERE Key_name = 'PRIMARY' AND Column_name = 'session_id'" ) ) {
				"ALTER TABLE `{$wpdb->prefix}woocommerce_sessions` DROP PRIMARY KEY, DROP KEY `session_id`, ADD PRIMARY KEY(`session_id`), ADD UNIQUE KEY(`session_key`)"

	dbDelta( self::get_schema() );

	$index_exists = $wpdb->get_row( "SHOW INDEX FROM {$wpdb->comments} WHERE column_name = 'comment_type' and key_name = 'woo_idx_comment_type'" );

	if ( is_null( $index_exists ) ) {
		// Add an index to the field comment_type to improve the response time of the query
		// used by WC_Comments::wp_count_comments() to get the number of comments by type.
		$wpdb->query( "ALTER TABLE {$wpdb->comments} ADD INDEX woo_idx_comment_type (comment_type)" );

	// Get tables data types and check it matches before adding constraint.
	$download_log_columns     = $wpdb->get_results( "SHOW COLUMNS FROM {$wpdb->prefix}wc_download_log WHERE Field = 'permission_id'", ARRAY_A );
	$download_log_column_type = '';
	if ( isset( $download_log_columns[0]['Type'] ) ) {
		$download_log_column_type = $download_log_columns[0]['Type'];

	$download_permissions_columns     = $wpdb->get_results( "SHOW COLUMNS FROM {$wpdb->prefix}woocommerce_downloadable_product_permissions WHERE Field = 'permission_id'", ARRAY_A );
	$download_permissions_column_type = '';
	if ( isset( $download_permissions_columns[0]['Type'] ) ) {
		$download_permissions_column_type = $download_permissions_columns[0]['Type'];

	// Add constraint to download logs if the columns matches.
	if ( ! empty( $download_permissions_column_type ) && ! empty( $download_log_column_type ) && $download_permissions_column_type === $download_log_column_type ) {
		$fk_result = $wpdb->get_row( "SHOW CREATE TABLE {$wpdb->prefix}wc_download_log" );
		if ( false === strpos( $fk_result->{'Create Table'}, "fk_{$wpdb->prefix}wc_download_log_permission_id" ) ) {
				"ALTER TABLE `{$wpdb->prefix}wc_download_log`
				ADD CONSTRAINT `fk_{$wpdb->prefix}wc_download_log_permission_id`
				FOREIGN KEY (`permission_id`)
				REFERENCES `{$wpdb->prefix}woocommerce_downloadable_product_permissions` (`permission_id`) ON DELETE CASCADE;"

	// Clear table caches.
	delete_transient( 'wc_attribute_taxonomies' );