Initial commit.

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2025-11-24 21:33:55 +00:00
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<?php
/**
* Migration class for migrating from WPPostMeta to OrderMeta table.
*/
namespace Automattic\WooCommerce\Database\Migrations\CustomOrderTable;
use Automattic\WooCommerce\Database\Migrations\MetaToMetaTableMigrator;
use Automattic\WooCommerce\Internal\DataStores\Orders\OrdersTableDataStore;
/**
* Helper class to migrate records from the WordPress post meta table
* to the custom orders meta table.
*
* @package Automattic\WooCommerce\Database\Migrations\CustomOrderTable
*/
class PostMetaToOrderMetaMigrator extends MetaToMetaTableMigrator {
/**
* List of meta keys to exclude from migration.
*
* @var array
*/
private $excluded_columns;
/**
* PostMetaToOrderMetaMigrator constructor.
*
* @param array $excluded_columns List of meta keys to exclude from migration.
*/
public function __construct( $excluded_columns ) {
$this->excluded_columns = $excluded_columns;
parent::__construct();
}
/**
* Generate config for meta data migration.
*
* @return array Meta data migration config.
*/
protected function get_meta_config(): array {
global $wpdb;
return array(
'source' => array(
'meta' => array(
'table_name' => $wpdb->postmeta,
'entity_id_column' => 'post_id',
'meta_id_column' => 'meta_id',
'meta_key_column' => 'meta_key',
'meta_value_column' => 'meta_value',
),
'entity' => array(
'table_name' => $wpdb->posts,
'source_id_column' => 'ID',
'id_column' => 'ID',
),
'excluded_keys' => $this->excluded_columns,
),
'destination' => array(
'meta' => array(
'table_name' => OrdersTableDataStore::get_meta_table_name(),
'entity_id_column' => 'order_id',
'meta_key_column' => 'meta_key',
'meta_value_column' => 'meta_value',
'entity_id_type' => 'int',
'meta_id_column' => 'id',
),
),
);
}
}

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<?php
/**
* Class for WPPost to wc_order_address table migrator.
*/
namespace Automattic\WooCommerce\Database\Migrations\CustomOrderTable;
use Automattic\WooCommerce\Database\Migrations\MetaToCustomTableMigrator;
use Automattic\WooCommerce\Internal\DataStores\Orders\OrdersTableDataStore;
/**
* Helper class to migrate records from the WordPress post table
* to the custom order addresses table.
*
* @package Automattic\WooCommerce\Database\Migrations\CustomOrderTable
*/
class PostToOrderAddressTableMigrator extends MetaToCustomTableMigrator {
/**
* Type of addresses being migrated; 'billing' or 'shipping'.
*
* @var $type
*/
protected $type;
/**
* PostToOrderAddressTableMigrator constructor.
*
* @param string $type Type of address being migrated; 'billing' or 'shipping'.
*/
public function __construct( $type ) {
$this->type = $type;
parent::__construct();
}
/**
* Get schema config for wp_posts and wc_order_address table.
*
* @return array Config.
*/
protected function get_schema_config(): array {
global $wpdb;
return array(
'source' => array(
'entity' => array(
'table_name' => $wpdb->posts,
'meta_rel_column' => 'ID',
'destination_rel_column' => 'ID',
'primary_key' => 'ID',
),
'meta' => array(
'table_name' => $wpdb->postmeta,
'meta_id_column' => 'meta_id',
'meta_key_column' => 'meta_key',
'meta_value_column' => 'meta_value',
'entity_id_column' => 'post_id',
),
),
'destination' => array(
'table_name' => OrdersTableDataStore::get_addresses_table_name(),
'source_rel_column' => 'order_id',
'primary_key' => 'id',
'primary_key_type' => 'int',
),
);
}
/**
* Get columns config.
*
* @return \string[][] Config.
*/
protected function get_core_column_mapping(): array {
$type = $this->type;
return array(
'ID' => array(
'type' => 'int',
'destination' => 'order_id',
),
'type' => array(
'type' => 'string',
'destination' => 'address_type',
'select_clause' => "'$type'",
),
);
}
/**
* Get meta data config.
*
* @return \string[][] Config.
*/
public function get_meta_column_config(): array {
$type = $this->type;
return array(
"_{$type}_first_name" => array(
'type' => 'string',
'destination' => 'first_name',
),
"_{$type}_last_name" => array(
'type' => 'string',
'destination' => 'last_name',
),
"_{$type}_company" => array(
'type' => 'string',
'destination' => 'company',
),
"_{$type}_address_1" => array(
'type' => 'string',
'destination' => 'address_1',
),
"_{$type}_address_2" => array(
'type' => 'string',
'destination' => 'address_2',
),
"_{$type}_city" => array(
'type' => 'string',
'destination' => 'city',
),
"_{$type}_state" => array(
'type' => 'string',
'destination' => 'state',
),
"_{$type}_postcode" => array(
'type' => 'string',
'destination' => 'postcode',
),
"_{$type}_country" => array(
'type' => 'string',
'destination' => 'country',
),
"_{$type}_email" => array(
'type' => 'string',
'destination' => 'email',
),
"_{$type}_phone" => array(
'type' => 'string',
'destination' => 'phone',
),
);
}
/**
* Additional WHERE clause to only fetch the addresses of the current type.
*
* @param array $entity_ids The ids of the entities being inserted or updated.
* @return string The additional string for the WHERE clause.
*/
protected function get_additional_where_clause_for_get_data_to_insert_or_update( array $entity_ids ): string {
return "AND destination.`address_type` = '{$this->type}'";
}
/**
* Helper function to generate where clause for fetching data for verification.
*
* @param array $source_ids Array of IDs from source table.
*
* @return string WHERE clause.
*/
protected function get_where_clause_for_verification( $source_ids ) {
global $wpdb;
$query = parent::get_where_clause_for_verification( $source_ids );
// phpcs:ignore WordPress.DB.PreparedSQL.InterpolatedNotPrepared -- $query should already be prepared, $schema_config is hardcoded.
return $wpdb->prepare( "$query AND {$this->schema_config['destination']['table_name']}.address_type = %s", $this->type );
}
}

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<?php
/**
* Class for WPPost to wc_order_operational_details migrator.
*/
namespace Automattic\WooCommerce\Database\Migrations\CustomOrderTable;
use Automattic\WooCommerce\Database\Migrations\MetaToCustomTableMigrator;
use Automattic\WooCommerce\Internal\DataStores\Orders\OrdersTableDataStore;
/**
* Helper class to migrate records from the WordPress post table
* to the custom order operations table.
*
* @package Automattic\WooCommerce\Database\Migrations\CustomOrderTable
*/
class PostToOrderOpTableMigrator extends MetaToCustomTableMigrator {
/**
* Get schema config for wp_posts and wc_order_operational_detail table.
*
* @return array Config.
*/
protected function get_schema_config(): array {
global $wpdb;
return array(
'source' => array(
'entity' => array(
'table_name' => $wpdb->posts,
'meta_rel_column' => 'ID',
'destination_rel_column' => 'ID',
'primary_key' => 'ID',
),
'meta' => array(
'table_name' => $wpdb->postmeta,
'meta_id_column' => 'meta_id',
'meta_key_column' => 'meta_key',
'meta_value_column' => 'meta_value',
'entity_id_column' => 'post_id',
),
),
'destination' => array(
'table_name' => OrdersTableDataStore::get_operational_data_table_name(),
'source_rel_column' => 'order_id',
'primary_key' => 'id',
'primary_key_type' => 'int',
),
);
}
/**
* Get columns config.
*
* @return \string[][] Config.
*/
protected function get_core_column_mapping(): array {
return array(
'ID' => array(
'type' => 'int',
'destination' => 'order_id',
),
);
}
/**
* Get meta data config.
*
* @return \string[][] Config.
*/
public function get_meta_column_config(): array {
return array(
'_created_via' => array(
'type' => 'string',
'destination' => 'created_via',
),
'_order_version' => array(
'type' => 'string',
'destination' => 'woocommerce_version',
),
'_prices_include_tax' => array(
'type' => 'bool',
'destination' => 'prices_include_tax',
),
'_recorded_coupon_usage_counts' => array(
'type' => 'bool',
'destination' => 'coupon_usages_are_counted',
),
'_download_permissions_granted' => array(
'type' => 'bool',
'destination' => 'download_permission_granted',
),
'_cart_hash' => array(
'type' => 'string',
'destination' => 'cart_hash',
),
'_new_order_email_sent' => array(
'type' => 'bool',
'destination' => 'new_order_email_sent',
),
'_order_key' => array(
'type' => 'string',
'destination' => 'order_key',
),
'_order_stock_reduced' => array(
'type' => 'bool',
'destination' => 'order_stock_reduced',
),
'_date_paid' => array(
'type' => 'date_epoch',
'destination' => 'date_paid_gmt',
),
'_date_completed' => array(
'type' => 'date_epoch',
'destination' => 'date_completed_gmt',
),
'_order_shipping_tax' => array(
'type' => 'decimal',
'destination' => 'shipping_tax_amount',
),
'_order_shipping' => array(
'type' => 'decimal',
'destination' => 'shipping_total_amount',
),
'_cart_discount_tax' => array(
'type' => 'decimal',
'destination' => 'discount_tax_amount',
),
'_cart_discount' => array(
'type' => 'decimal',
'destination' => 'discount_total_amount',
),
'_recorded_sales' => array(
'type' => 'bool',
'destination' => 'recorded_sales',
),
);
}
}

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<?php
/**
* Class for WPPost To order table migrator.
*/
namespace Automattic\WooCommerce\Database\Migrations\CustomOrderTable;
use Automattic\WooCommerce\Database\Migrations\MetaToCustomTableMigrator;
/**
* Helper class to migrate records from the WordPress post table
* to the custom order table (and only that table - PostsToOrdersMigrationController
* is used for fully migrating orders).
*/
class PostToOrderTableMigrator extends MetaToCustomTableMigrator {
/**
* Get schema config for wp_posts and wc_order table.
*
* @return array Config.
*/
protected function get_schema_config(): array {
global $wpdb;
$table_names = array(
'orders' => $wpdb->prefix . 'wc_orders',
'addresses' => $wpdb->prefix . 'wc_order_addresses',
'op_data' => $wpdb->prefix . 'wc_order_operational_data',
'meta' => $wpdb->prefix . 'wc_orders_meta',
);
return array(
'source' => array(
'entity' => array(
'table_name' => $wpdb->posts,
'meta_rel_column' => 'ID',
'destination_rel_column' => 'ID',
'primary_key' => 'ID',
),
'meta' => array(
'table_name' => $wpdb->postmeta,
'meta_id_column' => 'meta_id',
'meta_key_column' => 'meta_key',
'meta_value_column' => 'meta_value',
'entity_id_column' => 'post_id',
),
),
'destination' => array(
'table_name' => $table_names['orders'],
'source_rel_column' => 'id',
'primary_key' => 'id',
'primary_key_type' => 'int',
),
);
}
/**
* Get columns config.
*
* @return \string[][] Config.
*/
protected function get_core_column_mapping(): array {
return array(
'ID' => array(
'type' => 'int',
'destination' => 'id',
),
'post_status' => array(
'type' => 'string',
'destination' => 'status',
),
'post_date_gmt' => array(
'type' => 'date',
'destination' => 'date_created_gmt',
),
'post_modified_gmt' => array(
'type' => 'date',
'destination' => 'date_updated_gmt',
),
'post_parent' => array(
'type' => 'int',
'destination' => 'parent_order_id',
),
'post_type' => array(
'type' => 'string',
'destination' => 'type',
),
'post_excerpt' => array(
'type' => 'string',
'destination' => 'customer_note',
),
);
}
/**
* Get meta data config.
*
* @return \string[][] Config.
*/
public function get_meta_column_config(): array {
return array(
'_order_currency' => array(
'type' => 'string',
'destination' => 'currency',
),
'_order_tax' => array(
'type' => 'decimal',
'destination' => 'tax_amount',
),
'_order_total' => array(
'type' => 'decimal',
'destination' => 'total_amount',
),
'_customer_user' => array(
'type' => 'int',
'destination' => 'customer_id',
),
'_billing_email' => array(
'type' => 'string',
'destination' => 'billing_email',
),
'_payment_method' => array(
'type' => 'string',
'destination' => 'payment_method',
),
'_payment_method_title' => array(
'type' => 'string',
'destination' => 'payment_method_title',
),
'_customer_ip_address' => array(
'type' => 'string',
'destination' => 'ip_address',
),
'_customer_user_agent' => array(
'type' => 'string',
'destination' => 'user_agent',
),
'_transaction_id' => array(
'type' => 'string',
'destination' => 'transaction_id',
),
);
}
}

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<?php
/**
* Class for implementing migration from wp_posts and wp_postmeta to custom order tables.
*/
namespace Automattic\WooCommerce\Database\Migrations\CustomOrderTable;
use Automattic\WooCommerce\Internal\DataStores\Orders\CustomOrdersTableController;
use Automattic\WooCommerce\Internal\DataStores\Orders\OrdersTableDataStore;
use Automattic\WooCommerce\Utilities\ArrayUtil;
use Automattic\WooCommerce\Utilities\OrderUtil;
/**
* This is the main class used to perform the complete migration of orders
* from the posts table to the custom orders table.
*
* @package Automattic\WooCommerce\Database\Migrations\CustomOrderTable
*/
class PostsToOrdersMigrationController {
/**
* Error logger for migration errors.
*
* @var \WC_Logger
*/
private $error_logger;
/**
* Array of objects used to perform the migration.
*
* @var \Automattic\WooCommerce\Database\Migrations\TableMigrator[]
*/
private $all_migrators;
/**
* The source name to use for logs.
*/
public const LOGS_SOURCE_NAME = 'posts-to-orders-migration';
/**
* PostsToOrdersMigrationController constructor.
*/
public function __construct() {
$this->all_migrators = array();
$this->all_migrators['order'] = new PostToOrderTableMigrator();
$this->all_migrators['order_address_billing'] = new PostToOrderAddressTableMigrator( 'billing' );
$this->all_migrators['order_address_shipping'] = new PostToOrderAddressTableMigrator( 'shipping' );
$this->all_migrators['order_operational_data'] = new PostToOrderOpTableMigrator();
$this->all_migrators['order_meta'] = new PostMetaToOrderMetaMigrator( $this->get_migrated_meta_keys() );
$this->error_logger = wc_get_logger();
}
/**
* Helper method to get migrated keys for all the tables in this controller.
*
* @return string[] Array of meta keys.
*/
public function get_migrated_meta_keys() {
$migrated_meta_keys = array();
foreach ( $this->all_migrators as $name => $migrator ) {
if ( method_exists( $migrator, 'get_meta_column_config' ) ) {
$migrated_meta_keys = array_merge( $migrated_meta_keys, $migrator->get_meta_column_config() );
}
}
return array_keys( $migrated_meta_keys );
}
/**
* Migrates a set of orders from the posts table to the custom orders tables.
*
* @param array $order_post_ids List of post IDs of the orders to migrate.
*/
public function migrate_orders( array $order_post_ids ): void {
$this->error_logger = WC()->call_function( 'wc_get_logger' );
$data = array();
try {
foreach ( $this->all_migrators as $name => $migrator ) {
$data[ $name ] = $migrator->fetch_sanitized_migration_data( $order_post_ids );
if ( ! empty( $data[ $name ]['errors'] ) ) {
$this->handle_migration_error( $order_post_ids, $data[ $name ]['errors'], null, null, $name );
return;
}
}
} catch ( \Exception $e ) {
$this->handle_migration_error( $order_post_ids, $data, $e, null, 'Fetching data' );
return;
}
$using_transactions = $this->maybe_start_transaction();
foreach ( $this->all_migrators as $name => $migrator ) {
$results = $migrator->process_migration_data( $data[ $name ] );
$errors = array_unique( $results['errors'] );
$exception = $results['exception'];
if ( null === $exception && empty( $errors ) ) {
continue;
}
$this->handle_migration_error( $order_post_ids, $errors, $exception, $using_transactions, $name );
return;
}
if ( $using_transactions ) {
$this->commit_transaction();
}
$this->maybe_clear_order_datastore_cache_for_ids( $order_post_ids );
}
/**
* Log migration errors if any.
*
* @param array $order_post_ids List of post IDs of the orders to migrate.
* @param array $errors List of errors to log.
* @param \Exception|null $exception Exception to log.
* @param bool|null $using_transactions Whether transactions were used.
* @param string $name Name of the migrator.
*/
private function handle_migration_error( array $order_post_ids, array $errors, ?\Exception $exception, ?bool $using_transactions, string $name ) {
$batch = ArrayUtil::to_ranges_string( $order_post_ids );
if ( null !== $exception ) {
$exception_class = get_class( $exception );
$this->error_logger->error(
"$name: when processing ids $batch: ($exception_class) {$exception->getMessage()}, {$exception->getTraceAsString()}",
array(
'source' => self::LOGS_SOURCE_NAME,
'ids' => $order_post_ids,
'exception' => $exception,
)
);
}
foreach ( $errors as $error ) {
$this->error_logger->error(
"$name: when processing ids $batch: $error",
array(
'source' => self::LOGS_SOURCE_NAME,
'ids' => $order_post_ids,
'error' => $error,
)
);
}
if ( $using_transactions ) {
$this->rollback_transaction();
} else {
$this->maybe_clear_order_datastore_cache_for_ids( $order_post_ids );
}
}
/**
* Clear the cache of order data for modified orders during migration if cache is enabled.
*
* @param array $order_post_ids List of order IDs of the orders to clear from cache.
*
* @return void
*/
private function maybe_clear_order_datastore_cache_for_ids( array $order_post_ids ) {
if ( OrderUtil::custom_orders_table_datastore_cache_enabled() ) {
$orders_table_datastore = wc_get_container()->get( OrdersTableDataStore::class );
if ( is_callable( array( $orders_table_datastore, 'clear_cached_data' ) ) ) {
$orders_table_datastore->clear_cached_data( $order_post_ids );
}
}
}
/**
* Start a database transaction if the configuration mandates so.
*
* @return bool|null True if transaction started, false if transactions won't be used, null if transaction failed to start.
*
* @throws \Exception If the transaction isolation level is invalid.
*/
private function maybe_start_transaction(): ?bool {
$use_transactions = get_option( CustomOrdersTableController::USE_DB_TRANSACTIONS_OPTION, 'yes' );
if ( 'yes' !== $use_transactions ) {
return null;
}
$transaction_isolation_level = get_option( CustomOrdersTableController::DB_TRANSACTIONS_ISOLATION_LEVEL_OPTION, CustomOrdersTableController::DEFAULT_DB_TRANSACTIONS_ISOLATION_LEVEL );
$valid_transaction_isolation_levels = array( 'READ UNCOMMITTED', 'READ COMMITTED', 'REPEATABLE READ', 'SERIALIZABLE' );
if ( ! in_array( $transaction_isolation_level, $valid_transaction_isolation_levels, true ) ) {
throw new \Exception( "Invalid database transaction isolation level name $transaction_isolation_level" );
}
$set_transaction_isolation_level_command = "SET TRANSACTION ISOLATION LEVEL $transaction_isolation_level";
// We suppress errors in transaction isolation level setting because it's not supported by all DB engines, additionally, this might be executing in context of another transaction with a different isolation level.
if ( ! $this->db_query( $set_transaction_isolation_level_command, true ) ) {
return null;
}
return $this->db_query( 'START TRANSACTION' ) ? true : null;
}
/**
* Commit the current database transaction.
*
* @return bool True on success, false on error.
*/
private function commit_transaction(): bool {
return $this->db_query( 'COMMIT' );
}
/**
* Rollback the current database transaction.
*
* @return bool True on success, false on error.
*/
private function rollback_transaction(): bool {
return $this->db_query( 'ROLLBACK' );
}
/**
* Execute a database query and log any errors.
*
* @param string $query The SQL query to execute.
* @param bool $supress_errors Whether to suppress errors.
*
* @return bool True if the query succeeded, false if there were errors.
*/
private function db_query( string $query, bool $supress_errors = false ): bool {
$wpdb = WC()->get_global( 'wpdb' );
try {
if ( $supress_errors ) {
$suppress = $wpdb->suppress_errors( true );
}
// phpcs:ignore WordPress.DB.PreparedSQL.NotPrepared
$wpdb->query( $query );
if ( $supress_errors ) {
$wpdb->suppress_errors( $suppress );
}
} catch ( \Exception $exception ) {
$exception_class = get_class( $exception );
$this->error_logger->error(
"PostsToOrdersMigrationController: when executing $query: ($exception_class) {$exception->getMessage()}, {$exception->getTraceAsString()}",
array(
'source' => self::LOGS_SOURCE_NAME,
'exception' => $exception,
)
);
return false;
}
$error = $wpdb->last_error;
if ( '' !== $error ) {
$this->error_logger->error(
"PostsToOrdersMigrationController: when executing $query: $error",
array(
'source' => self::LOGS_SOURCE_NAME,
'error' => $error,
)
);
return false;
}
return true;
}
/**
* Verify whether the given order IDs were migrated properly or not.
*
* @param array $order_post_ids Order IDs.
*
* @return array Array of failed IDs along with columns.
*/
public function verify_migrated_orders( array $order_post_ids ): array {
$errors = array();
foreach ( $this->all_migrators as $migrator ) {
if ( method_exists( $migrator, 'verify_migrated_data' ) ) {
$errors = $errors + $migrator->verify_migrated_data( $order_post_ids );
}
}
return $errors;
}
/**
* Migrates an order from the posts table to the custom orders tables.
*
* @param int $order_post_id Post ID of the order to migrate.
*/
public function migrate_order( int $order_post_id ): void {
$this->migrate_orders( array( $order_post_id ) );
}
}

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<?php
/**
* Generic migration class to move any entity, entity_meta table combination to custom table.
*/
namespace Automattic\WooCommerce\Database\Migrations;
/**
* Base class for implementing migrations from the standard WordPress meta table
* to custom structured tables.
*
* @package Automattic\WooCommerce\Database\Migrations
*/
abstract class MetaToCustomTableMigrator extends TableMigrator {
/**
* Config for tables being migrated and migrated from. See __construct() for detailed config.
*
* @var array
*/
protected $schema_config;
/**
* Meta config, see __construct for detailed config.
*
* @var array
*/
protected $meta_column_mapping;
/**
* Column mapping from source table to destination custom table. See __construct for detailed config.
*
* @var array
*/
protected $core_column_mapping;
/**
* MetaToCustomTableMigrator constructor.
*/
public function __construct() {
$this->schema_config = MigrationHelper::escape_schema_for_backtick( $this->get_schema_config() );
$this->meta_column_mapping = $this->get_meta_column_config();
$this->core_column_mapping = $this->get_core_column_mapping();
}
/**
* Specify schema config the source and destination table.
*
* @return array Schema, must of the form:
* array(
'source' => array(
'entity' => array(
'table_name' => $source_table_name,
'meta_rel_column' => $column_meta, Name of column in source table which is referenced by meta table.
'destination_rel_column' => $column_dest, Name of column in source table which is refenced by destination table,
'primary_key' => $primary_key, Primary key of the source table
),
'meta' => array(
'table' => $meta_table_name,
'meta_key_column' => $meta_key_column_name,
'meta_value_column' => $meta_value_column_name,
'entity_id_column' => $entity_id_column, Name of the column having entity IDs.
),
),
'destination' => array(
'table_name' => $table_name, Name of destination table,
'source_rel_column' => $column_source_id, Name of the column in destination table which is referenced by source table.
'primary_key' => $table_primary_key,
'primary_key_type' => $type bool|int|string|decimal
)
*/
abstract protected function get_schema_config(): array;
/**
* Specify column config from the source table.
*
* @return array Config, must be of the form:
* array(
* '$source_column_name_1' => array( // $source_column_name_1 is column name in source table, or a select statement.
* 'type' => 'type of value, could be string/int/date/float.',
* 'destination' => 'name of the column in column name where this data should be inserted in.',
* ),
* '$source_column_name_2' => array(
* ......
* ),
* ....
* ).
*/
abstract protected function get_core_column_mapping(): array;
/**
* Specify meta keys config from source meta table.
*
* @return array Config, must be of the form.
* array(
* '$meta_key_1' => array( // $meta_key_1 is the name of meta_key in source meta table.
* 'type' => 'type of value, could be string/int/date/float',
* 'destination' => 'name of the column in column name where this data should be inserted in.',
* ),
* '$meta_key_2' => array(
* ......
* ),
* ....
* ).
*/
abstract protected function get_meta_column_config(): array;
/**
* Generate SQL for data insertion.
*
* @param array $batch Data to generate queries for. Will be 'data' array returned by `$this->fetch_data_for_migration_for_ids()` method.
*
* @return string Generated queries for insertion for this batch, would be of the form:
* INSERT IGNORE INTO $table_name ($columns) values
* ($value for row 1)
* ($value for row 2)
* ...
*/
private function generate_insert_sql_for_batch( array $batch ): string {
$table = $this->schema_config['destination']['table_name'];
list( $value_sql, $column_sql ) = $this->generate_column_clauses( array_merge( $this->core_column_mapping, $this->meta_column_mapping ), $batch );
return "INSERT INTO $table (`$column_sql`) VALUES $value_sql;"; // phpcs:ignore WordPress.DB.PreparedSQL.InterpolatedNotPrepared, -- $insert_query is hardcoded, $value_sql is already escaped.
}
/**
* Generate SQL for data updating.
*
* @param array $batch Data to generate queries for. Will be `data` array returned by fetch_data_for_migration_for_ids() method.
*
* @param array $entity_row_mapping Maps rows to update data with their original IDs. Will be returned by `generate_update_sql_for_batch`.
*
* @return string Generated queries for batch update. Would be of the form:
* INSERT INTO $table ( $columns ) VALUES
* ($value for row 1)
* ($value for row 2)
* ...
* ON DUPLICATE KEY UPDATE
* $column1 = VALUES($column1)
* $column2 = VALUES($column2)
* ...
*/
private function generate_update_sql_for_batch( array $batch, array $entity_row_mapping ): string {
$table = $this->schema_config['destination']['table_name'];
$destination_primary_id_schema = $this->get_destination_table_primary_id_schema();
foreach ( $batch as $entity_id => $row ) {
$batch[ $entity_id ][ $destination_primary_id_schema['destination_primary_key']['destination'] ] = $entity_row_mapping[ $entity_id ]->destination_id;
}
list( $value_sql, $column_sql, $columns ) = $this->generate_column_clauses(
array_merge( $destination_primary_id_schema, $this->core_column_mapping, $this->meta_column_mapping ),
$batch
);
$duplicate_update_key_statement = MigrationHelper::generate_on_duplicate_statement_clause( $columns );
return "INSERT INTO $table (`$column_sql`) VALUES $value_sql $duplicate_update_key_statement;";
}
/**
* Generate schema for primary ID column of destination table.
*
* @return array[] Schema for primary ID column.
*/
private function get_destination_table_primary_id_schema(): array {
return array(
'destination_primary_key' => array(
'destination' => $this->schema_config['destination']['primary_key'],
'type' => $this->schema_config['destination']['primary_key_type'],
),
);
}
/**
* Generate values and columns clauses to be used in INSERT and INSERT..ON DUPLICATE KEY UPDATE statements.
*
* @param array $columns_schema Columns config for destination table.
* @param array $batch Actual data to migrate as returned by `data` in `fetch_data_for_migration_for_ids` method.
*
* @return array SQL clause for values, columns placeholders, and columns.
*/
private function generate_column_clauses( array $columns_schema, array $batch ): array {
global $wpdb;
$columns = array();
$placeholders = array();
foreach ( $columns_schema as $prev_column => $schema ) {
if ( in_array( $schema['destination'], $columns, true ) ) {
continue;
}
$columns[] = $schema['destination'];
$placeholders[] = MigrationHelper::get_wpdb_placeholder_for_type( $schema['type'] );
}
$values = array();
foreach ( array_values( $batch ) as $row ) {
$row_values = array();
foreach ( $columns as $index => $column ) {
if ( ! isset( $row[ $column ] ) || is_null( $row[ $column ] ) ) {
$row_values[] = 'NULL';
} else {
// phpcs:ignore WordPress.DB.PreparedSQL.NotPrepared, WordPress.DB.PreparedSQL.NotPrepared -- $placeholders is a placeholder.
$row_values[] = $wpdb->prepare( $placeholders[ $index ], $row[ $column ] );
}
}
$value_string = '(' . implode( ',', $row_values ) . ')';
$values[] = $value_string;
}
$value_sql = implode( ',', $values );
$column_sql = implode( '`, `', $columns );
return array( $value_sql, $column_sql, $columns );
}
/**
* Return data to be migrated for a batch of entities.
*
* @param array $entity_ids Ids of entities to migrate.
*
* @return array[] Data to be migrated. Would be of the form: array( 'data' => array( ... ), 'errors' => array( ... ) ).
*/
public function fetch_sanitized_migration_data( $entity_ids ) {
$this->clear_errors();
$data = $this->fetch_data_for_migration_for_ids( $entity_ids );
foreach ( $data['errors'] as $entity_id => $errors ) {
foreach ( $errors as $column_name => $error_message ) {
$this->add_error( "Error importing data for post with id $entity_id: column $column_name: $error_message" );
}
}
return array(
'data' => $data['data'],
'errors' => $this->get_errors(),
);
}
/**
* Migrate a batch of entities from the posts table to the corresponding table.
*
* @param array $entity_ids Ids of entities to migrate.
*
* @return void
*/
protected function process_migration_batch_for_ids_core( array $entity_ids ): void {
$data = $this->fetch_sanitized_migration_data( $entity_ids );
$this->process_migration_data( $data );
}
/**
* Process migration data for a batch of entities.
*
* @param array $data Data to be migrated. Should be of the form: array( 'data' => array( ... ) ) as returned by the `fetch_sanitized_migration_data` method.
*
* @return array Array of errors and exception if any.
*/
public function process_migration_data( array $data ) {
$this->clear_errors();
$exception = null;
if ( ! isset( $data['data'] ) || ! is_array( $data['data'] ) || count( $data['data'] ) === 0 ) {
return array(
'errors' => $this->get_errors(),
'exception' => null,
);
}
try {
$entity_ids = array_keys( $data['data'] );
$existing_records = $this->get_already_existing_records( $entity_ids );
$to_insert = array_diff_key( $data['data'], $existing_records );
$this->process_insert_batch( $to_insert );
$to_update = array_intersect_key( $data['data'], $existing_records );
$this->process_update_batch( $to_update, $existing_records );
} catch ( \Exception $e ) {
$exception = $e;
}
return array(
'errors' => $this->get_errors(),
'exception' => $exception,
);
}
/**
* Process batch for insertion into destination table.
*
* @param array $batch Data to insert, will be of the form as returned by `data` in `fetch_data_for_migration_for_ids`.
*/
private function process_insert_batch( array $batch ): void {
if ( 0 === count( $batch ) ) {
return;
}
$queries = $this->generate_insert_sql_for_batch( $batch );
// phpcs:ignore WordPress.DB.PreparedSQL.NotPrepared -- Queries should already be prepared.
$processed_rows_count = $this->db_query( $queries );
$this->maybe_add_insert_or_update_error( 'insert', $processed_rows_count );
}
/**
* Process batch for update into destination table.
*
* @param array $batch Data to insert, will be of the form as returned by `data` in `fetch_data_for_migration_for_ids`.
* @param array $ids_mapping Maps rows to update data with their original IDs.
*/
private function process_update_batch( array $batch, array $ids_mapping ): void {
if ( 0 === count( $batch ) ) {
return;
}
$queries = $this->generate_update_sql_for_batch( $batch, $ids_mapping );
// phpcs:ignore WordPress.DB.PreparedSQL.NotPrepared -- Queries should already be prepared.
$processed_rows_count = $this->db_query( $queries ) / 2;
$this->maybe_add_insert_or_update_error( 'update', $processed_rows_count );
}
/**
* Fetch data for migration.
*
* @param array $entity_ids Entity IDs to fetch data for.
*
* @return array[] Data along with errors (if any), will of the form:
* array(
* 'data' => array(
* 'id_1' => array( 'column1' => value1, 'column2' => value2, ...),
* ...,
* ),
* 'errors' => array(
* 'id_1' => array( 'column1' => error1, 'column2' => value2, ...),
* ...,
* )
*/
private function fetch_data_for_migration_for_ids( array $entity_ids ): array {
if ( empty( $entity_ids ) ) {
return array(
'data' => array(),
'errors' => array(),
);
}
$entity_table_query = $this->build_entity_table_query( $entity_ids );
// phpcs:ignore WordPress.DB.PreparedSQL.NotPrepared -- Output of $this->build_entity_table_query is already prepared.
$entity_data = $this->db_get_results( $entity_table_query );
if ( empty( $entity_data ) ) {
return array(
'data' => array(),
'errors' => array(),
);
}
$entity_meta_rel_ids = array_column( $entity_data, 'entity_meta_rel_id' );
$meta_table_query = $this->build_meta_data_query( $entity_meta_rel_ids );
// phpcs:ignore WordPress.DB.PreparedSQL.NotPrepared -- Output of $this->build_meta_data_query is already prepared.
$meta_data = $this->db_get_results( $meta_table_query );
return $this->process_and_sanitize_data( $entity_data, $meta_data );
}
/**
* Fetch id mappings for records that are already inserted in the destination table.
*
* @param array $entity_ids List of entity IDs to verify.
*
* @return array Already migrated entities, would be of the form
* array(
* '$source_id1' => array(
* 'source_id' => $source_id1,
* 'destination_id' => $destination_id1
* 'modified' => 0 if it can be determined that the row doesn't need update, 1 otherwise
* ),
* ...
* )
*/
protected function get_already_existing_records( array $entity_ids ): array {
global $wpdb;
$source_table = $this->schema_config['source']['entity']['table_name'];
$source_destination_join_column = $this->schema_config['source']['entity']['destination_rel_column'];
$source_primary_key_column = $this->schema_config['source']['entity']['primary_key'];
$destination_table = $this->schema_config['destination']['table_name'];
$destination_source_join_column = $this->schema_config['destination']['source_rel_column'];
$destination_primary_key_column = $this->schema_config['destination']['primary_key'];
$entity_id_placeholder = implode( ',', array_fill( 0, count( $entity_ids ), '%d' ) );
$additional_where = $this->get_additional_where_clause_for_get_data_to_insert_or_update( $entity_ids );
$already_migrated_entity_ids = $this->db_get_results(
$wpdb->prepare(
// phpcs:disable WordPress.DB.PreparedSQL.InterpolatedNotPrepared, WordPress.DB.PreparedSQLPlaceholders.UnfinishedPrepare -- All columns and table names are hardcoded.
"
SELECT source.`$source_primary_key_column` as source_id, destination.`$destination_primary_key_column` as destination_id
FROM `$destination_table` destination
JOIN `$source_table` source ON source.`$source_destination_join_column` = destination.`$destination_source_join_column`
WHERE source.`$source_primary_key_column` IN ( $entity_id_placeholder ) $additional_where
",
$entity_ids
)
// phpcs:enable
);
return array_column( $already_migrated_entity_ids, null, 'source_id' );
}
/**
* Get additional string to be appended to the WHERE clause of the SQL query used by get_data_to_insert_or_update.
*
* @param array $entity_ids The ids of the entities being inserted or updated.
* @return string Additional string for the WHERE clause, must either be empty or start with "AND" or "OR".
*/
protected function get_additional_where_clause_for_get_data_to_insert_or_update( array $entity_ids ): string {
return '';
}
/**
* Helper method to build query used to fetch data from core source table.
*
* @param array $entity_ids List of entity IDs to fetch.
*
* @return string Query that can be used to fetch data.
*/
private function build_entity_table_query( array $entity_ids ): string {
global $wpdb;
$source_entity_table = $this->schema_config['source']['entity']['table_name'];
$source_meta_rel_id_column = "`$source_entity_table`.`{$this->schema_config['source']['entity']['meta_rel_column']}`";
$source_primary_key_column = "`$source_entity_table`.`{$this->schema_config['source']['entity']['primary_key']}`";
$where_clause = "$source_primary_key_column IN (" . implode( ',', array_fill( 0, count( $entity_ids ), '%d' ) ) . ')';
$entity_keys = array();
foreach ( $this->core_column_mapping as $column_name => $column_schema ) {
if ( isset( $column_schema['select_clause'] ) ) {
$select_clause = $column_schema['select_clause'];
$entity_keys[] = "$select_clause AS $column_name";
} else {
$entity_keys[] = "$source_entity_table.$column_name";
}
}
$entity_column_string = implode( ', ', $entity_keys );
// phpcs:disable WordPress.DB.PreparedSQL.InterpolatedNotPrepared, WordPress.DB.PreparedSQLPlaceholders.UnfinishedPrepare -- $source_meta_rel_id_column, $source_destination_rel_id_column etc is escaped for backticks. $where clause and $order_by should already be escaped.
$query = $wpdb->prepare(
"
SELECT
$source_meta_rel_id_column as entity_meta_rel_id,
$source_primary_key_column as primary_key_id,
$entity_column_string
FROM `$source_entity_table`
WHERE $where_clause;
",
$entity_ids
);
// phpcs:enable
return $query;
}
/**
* Helper method to build query that will be used to fetch data from source meta table.
*
* @param array $entity_ids List of IDs to fetch metadata for.
*
* @return string Query for fetching meta data.
*/
private function build_meta_data_query( array $entity_ids ): string {
global $wpdb;
$meta_table = $this->schema_config['source']['meta']['table_name'];
$meta_keys = array_keys( $this->meta_column_mapping );
$meta_key_column = $this->schema_config['source']['meta']['meta_key_column'];
$meta_value_column = $this->schema_config['source']['meta']['meta_value_column'];
$meta_table_relational_key = $this->schema_config['source']['meta']['entity_id_column'];
$meta_column_string = implode( ', ', array_fill( 0, count( $meta_keys ), '%s' ) );
$entity_id_string = implode( ', ', array_fill( 0, count( $entity_ids ), '%d' ) );
// phpcs:disable WordPress.DB.PreparedSQL.InterpolatedNotPrepared, WordPress.DB.PreparedSQLPlaceholders.UnfinishedPrepare -- $meta_table_relational_key, $meta_key_column, $meta_value_column and $meta_table is escaped for backticks. $entity_id_string and $meta_column_string are placeholders.
$query = $wpdb->prepare(
"
SELECT `$meta_table_relational_key` as entity_id, `$meta_key_column` as meta_key, `$meta_value_column` as meta_value
FROM `$meta_table`
WHERE
`$meta_table_relational_key` IN ( $entity_id_string )
AND `$meta_key_column` IN ( $meta_column_string );
",
array_merge(
$entity_ids,
$meta_keys
)
);
// phpcs:enable
return $query;
}
/**
* Helper function to validate and combine data before we try to insert.
*
* @param array $entity_data Data from source table.
* @param array $meta_data Data from meta table.
*
* @return array[] Validated and combined data with errors.
*/
private function process_and_sanitize_data( array $entity_data, array $meta_data ): array {
$sanitized_entity_data = array();
$error_records = array();
$this->process_and_sanitize_entity_data( $sanitized_entity_data, $error_records, $entity_data );
$this->processs_and_sanitize_meta_data( $sanitized_entity_data, $error_records, $meta_data );
return array(
'data' => $sanitized_entity_data,
'errors' => $error_records,
);
}
/**
* Helper method to sanitize core source table.
*
* @param array $sanitized_entity_data Array containing sanitized data for insertion.
* @param array $error_records Error records.
* @param array $entity_data Original source data.
*/
private function process_and_sanitize_entity_data( array &$sanitized_entity_data, array &$error_records, array $entity_data ): void {
foreach ( $entity_data as $entity ) {
$row_data = array();
foreach ( $this->core_column_mapping as $column_name => $schema ) {
$custom_table_column_name = $schema['destination'] ?? $column_name;
$value = $entity->$column_name;
$value = $this->validate_data( $value, $schema['type'] );
if ( is_wp_error( $value ) ) {
$error_records[ $entity->primary_key_id ][ $custom_table_column_name ] = $value->get_error_code();
} else {
$row_data[ $custom_table_column_name ] = $value;
}
}
$sanitized_entity_data[ $entity->entity_meta_rel_id ] = $row_data;
}
}
/**
* Helper method to sanitize soure meta data.
*
* @param array $sanitized_entity_data Array containing sanitized data for insertion.
* @param array $error_records Error records.
* @param array $meta_data Original source data.
*/
private function processs_and_sanitize_meta_data( array &$sanitized_entity_data, array &$error_records, array $meta_data ): void {
foreach ( $meta_data as $datum ) {
$column_schema = $this->meta_column_mapping[ $datum->meta_key ];
if ( isset( $sanitized_entity_data[ $datum->entity_id ][ $column_schema['destination'] ] ) ) {
// We pick only the first meta if there are duplicates for a flat column, to be consistent with WP core behavior in handing duplicate meta which are marked as unique.
continue;
}
$value = $this->validate_data( $datum->meta_value, $column_schema['type'] );
if ( is_wp_error( $value ) ) {
$error_records[ $datum->entity_id ][ $column_schema['destination'] ] = "{$value->get_error_code()}: {$value->get_error_message()}";
} else {
$sanitized_entity_data[ $datum->entity_id ][ $column_schema['destination'] ] = $value;
}
}
}
/**
* Validate and transform data so that we catch as many errors as possible before inserting.
*
* @param mixed $value Actual data value.
* @param string $type Type of data, could be decimal, int, date, string.
*
* @return float|int|mixed|string|\WP_Error
*/
private function validate_data( $value, string $type ) {
switch ( $type ) {
case 'decimal':
$value = wc_format_decimal( floatval( $value ), false, true );
break;
case 'int':
$value = (int) $value;
break;
case 'bool':
$value = wc_string_to_bool( $value );
break;
case 'date':
try {
if ( '' === $value ) {
$value = null;
} else {
$value = ( new \DateTime( $value ) )->format( 'Y-m-d H:i:s' );
}
} catch ( \Exception $e ) {
return new \WP_Error( $e->getMessage() );
}
break;
case 'date_epoch':
try {
if ( '' === $value ) {
$value = null;
} else {
$value = ( new \DateTime( "@$value" ) )->format( 'Y-m-d H:i:s' );
}
} catch ( \Exception $e ) {
return new \WP_Error( $e->getMessage() );
}
break;
}
return $value;
}
/**
* Verify whether data was migrated properly for given IDs.
*
* @param array $source_ids List of source IDs.
*
* @return array List of IDs along with columns that failed to migrate.
*/
public function verify_migrated_data( array $source_ids ) : array {
global $wpdb;
$query = $this->build_verification_query( $source_ids );
// phpcs:ignore WordPress.DB.PreparedSQL.NotPrepared -- $query should already be prepared.
$results = $wpdb->get_results( $query, ARRAY_A );
$results = $this->fill_source_metadata( $results, $source_ids );
return $this->verify_data( $results );
}
/**
* Generate query to fetch data from both source and destination tables. Use the results in `verify_data` to verify if data was migrated properly.
*
* @param array $source_ids Array of IDs in source table.
*
* @return string SELECT statement.
*/
protected function build_verification_query( $source_ids ) {
$source_table = $this->schema_config['source']['entity']['table_name'];
$destination_table = $this->schema_config['destination']['table_name'];
$destination_source_rel_column = $this->schema_config['destination']['source_rel_column'];
$source_destination_rel_column = $this->schema_config['source']['entity']['destination_rel_column'];
$source_destination_join_clause = "$destination_table ON $destination_table.$destination_source_rel_column = $source_table.$source_destination_rel_column";
$meta_select_clauses = array();
$source_select_clauses = array();
$destination_select_clauses = array();
foreach ( $this->core_column_mapping as $column_name => $schema ) {
$source_select_column = isset( $schema['select_clause'] ) ? $schema['select_clause'] : "$source_table.$column_name";
$source_select_clauses[] = "$source_select_column as {$source_table}_{$column_name}";
$destination_select_clauses[] = "$destination_table.{$schema['destination']} as {$destination_table}_{$schema['destination']}";
}
foreach ( $this->meta_column_mapping as $meta_key => $schema ) {
$destination_select_clauses[] = "$destination_table.{$schema['destination']} as {$destination_table}_{$schema['destination']}";
}
$select_clause = implode( ', ', array_merge( $source_select_clauses, $meta_select_clauses, $destination_select_clauses ) );
$where_clause = $this->get_where_clause_for_verification( $source_ids );
return "
SELECT $select_clause
FROM $source_table
LEFT JOIN $source_destination_join_clause
WHERE $where_clause
";
}
/**
* Fill source metadata for given IDs for verification. This will return filled data in following format:
* [
* {
* $source_table_$source_column: $value,
* ...,
* $destination_table_$destination_column: $value,
* ...
* meta_source_{$destination_column_name1}: $meta_value,
* ...
* },
* ...
* ]
*
* @param array $results Entity data from both source and destination table.
* @param array $source_ids List of source IDs.
*
* @return array Filled $results param with source metadata.
*/
private function fill_source_metadata( $results, $source_ids ) {
global $wpdb;
$meta_table = $this->schema_config['source']['meta']['table_name'];
$meta_entity_id_column = $this->schema_config['source']['meta']['entity_id_column'];
$meta_key_column = $this->schema_config['source']['meta']['meta_key_column'];
$meta_value_column = $this->schema_config['source']['meta']['meta_value_column'];
$meta_id_column = $this->schema_config['source']['meta']['meta_id_column'];
$meta_columns = array_keys( $this->meta_column_mapping );
$meta_columns_placeholder = implode( ', ', array_fill( 0, count( $meta_columns ), '%s' ) );
$source_ids_placeholder = implode( ', ', array_fill( 0, count( $source_ids ), '%d' ) );
$query = $wpdb->prepare(
// phpcs:disable WordPress.DB.PreparedSQL.InterpolatedNotPrepared, WordPress.DB.PreparedSQLPlaceholders.UnfinishedPrepare
"SELECT $meta_entity_id_column as entity_id, $meta_key_column as meta_key, $meta_value_column as meta_value
FROM $meta_table
WHERE $meta_entity_id_column IN ($source_ids_placeholder)
AND $meta_key_column IN ($meta_columns_placeholder)
ORDER BY $meta_id_column ASC",
array_merge( $source_ids, $meta_columns )
);
//phpcs:enable
// phpcs:ignore WordPress.DB.PreparedSQL.NotPrepared
$meta_data = $wpdb->get_results( $query, ARRAY_A );
$source_metadata_rows = array();
foreach ( $meta_data as $meta_datum ) {
if ( ! isset( $source_metadata_rows[ $meta_datum['entity_id'] ] ) ) {
$source_metadata_rows[ $meta_datum['entity_id'] ] = array();
}
$destination_column = $this->meta_column_mapping[ $meta_datum['meta_key'] ]['destination'];
$alias = "meta_source_{$destination_column}";
if ( isset( $source_metadata_rows[ $meta_datum['entity_id'] ][ $alias ] ) ) {
// Only process first value, duplicate values mapping to flat columns are ignored to be consistent with WP core.
continue;
}
$source_metadata_rows[ $meta_datum['entity_id'] ][ $alias ] = $meta_datum['meta_value'];
}
foreach ( $results as $index => $result_row ) {
$source_id = $result_row[ $this->schema_config['source']['entity']['table_name'] . '_' . $this->schema_config['source']['entity']['primary_key'] ];
$results[ $index ] = array_merge( $result_row, ( $source_metadata_rows[ $source_id ] ?? array() ) );
}
return $results;
}
/**
* Helper function to generate where clause for fetching data for verification.
*
* @param array $source_ids Array of IDs from source table.
*
* @return string WHERE clause.
*/
protected function get_where_clause_for_verification( $source_ids ) {
global $wpdb;
$source_primary_id_column = $this->schema_config['source']['entity']['primary_key'];
$source_table = $this->schema_config['source']['entity']['table_name'];
$source_ids_placeholder = implode( ', ', array_fill( 0, count( $source_ids ), '%d' ) );
return $wpdb->prepare(
// phpcs:ignore WordPress.DB.PreparedSQL.InterpolatedNotPrepared, WordPress.DB.PreparedSQLPlaceholders.UnfinishedPrepare
"$source_table.$source_primary_id_column IN ($source_ids_placeholder)",
$source_ids
);
}
/**
* Verify data from both source and destination tables and check if they were migrated properly.
*
* @param array $collected_data Collected data in array format, should be in same structure as returned from query in `$this->build_verification_query`.
*
* @return array Array of failed IDs if any, along with columns/meta_key names.
*/
protected function verify_data( $collected_data ) {
$failed_ids = array();
foreach ( $collected_data as $row ) {
$failed_ids = $this->verify_entity_columns( $row, $failed_ids );
$failed_ids = $this->verify_meta_columns( $row, $failed_ids );
}
return $failed_ids;
}
/**
* Helper method to verify and compare core columns.
*
* @param array $row Both migrated and source data for a single row.
* @param array $failed_ids Array of failed IDs.
*
* @return array Array of failed IDs if any, along with columns/meta_key names.
*/
private function verify_entity_columns( $row, $failed_ids ) {
$primary_key_column = "{$this->schema_config['source']['entity']['table_name']}_{$this->schema_config['source']['entity']['primary_key']}";
foreach ( $this->core_column_mapping as $column_name => $schema ) {
$source_alias = "{$this->schema_config['source']['entity']['table_name']}_$column_name";
$destination_alias = "{$this->schema_config['destination']['table_name']}_{$schema['destination']}";
$row = $this->pre_process_row( $row, $schema, $source_alias, $destination_alias );
if ( $row[ $source_alias ] !== $row[ $destination_alias ] ) {
if ( ! isset( $failed_ids[ $row[ $primary_key_column ] ] ) ) {
$failed_ids[ $row[ $primary_key_column ] ] = array();
}
$failed_ids[ $row[ $primary_key_column ] ][] = array(
'column' => $column_name,
'original_value' => $row[ $source_alias ],
'new_value' => $row[ $destination_alias ],
);
}
}
return $failed_ids;
}
/**
* Helper method to verify meta columns.
*
* @param array $row Both migrated and source data for a single row.
* @param array $failed_ids Array of failed IDs.
*
* @return array Array of failed IDs if any, along with columns/meta_key names.
*/
private function verify_meta_columns( $row, $failed_ids ) {
$primary_key_column = "{$this->schema_config['source']['entity']['table_name']}_{$this->schema_config['source']['entity']['primary_key']}";
foreach ( $this->meta_column_mapping as $meta_key => $schema ) {
$meta_alias = "meta_source_{$schema['destination']}";
$destination_alias = "{$this->schema_config['destination']['table_name']}_{$schema['destination']}";
$row = $this->pre_process_row( $row, $schema, $meta_alias, $destination_alias );
if ( $row[ $meta_alias ] !== $row[ $destination_alias ] ) {
if ( ! isset( $failed_ids[ $row[ $primary_key_column ] ] ) ) {
$failed_ids[ $row[ $primary_key_column ] ] = array();
}
$failed_ids[ $row[ $primary_key_column ] ][] = array(
'column' => $meta_key,
'original_value' => $row[ $meta_alias ],
'new_value' => $row[ $destination_alias ],
);
}
}
return $failed_ids;
}
/**
* Helper method to pre-process rows to make sure we parse the correct type.
*
* @param array $row Both migrated and source data for a single row.
* @param array $schema Column schema.
* @param string $alias Name of source column.
* @param string $destination_alias Name of destination column.
*
* @return array Processed row.
*/
private function pre_process_row( $row, $schema, $alias, $destination_alias ) {
if ( ! isset( $row[ $alias ] ) ) {
$row[ $alias ] = $this->get_type_defaults( $schema['type'] );
}
if ( is_null( $row[ $destination_alias ] ) ) {
$row[ $destination_alias ] = $this->get_type_defaults( $schema['type'] );
}
if ( in_array( $schema['type'], array( 'int', 'decimal', 'float' ), true ) ) {
if ( '' === $row[ $alias ] || null === $row[ $alias ] ) {
$row[ $alias ] = 0; // $wpdb->prepare forces empty values to 0.
}
$row[ $alias ] = wc_format_decimal( floatval( $row[ $alias ] ), false, true );
$row[ $destination_alias ] = wc_format_decimal( floatval( $row[ $destination_alias ] ), false, true );
}
if ( 'bool' === $schema['type'] ) {
$row[ $alias ] = wc_string_to_bool( $row[ $alias ] );
$row[ $destination_alias ] = wc_string_to_bool( $row[ $destination_alias ] );
}
if ( 'date_epoch' === $schema['type'] ) {
if ( '' === $row[ $alias ] || null === $row[ $alias ] ) {
$row[ $alias ] = null;
} else {
$row[ $alias ] = ( new \DateTime( "@{$row[ $alias ]}" ) )->format( 'Y-m-d H:i:s' );
}
if ( '0000-00-00 00:00:00' === $row[ $destination_alias ] ) {
$row[ $destination_alias ] = null;
}
}
return $row;
}
/**
* Helper method to get default value of a type.
*
* @param string $type Type.
*
* @return mixed Default value.
*/
private function get_type_defaults( $type ) {
switch ( $type ) {
case 'float':
case 'int':
case 'decimal':
return 0;
case 'string':
return '';
}
}
}

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<?php
/**
* Generic Migration class to move any meta data associated to an entity, to a different meta table associated with a custom entity table.
*/
namespace Automattic\WooCommerce\Database\Migrations;
/**
* Base class for implementing migrations from the standard WordPress meta table
* to custom meta (key-value pairs) tables.
*
* @package Automattic\WooCommerce\Database\Migrations
*/
abstract class MetaToMetaTableMigrator extends TableMigrator {
/**
* Schema config, see __construct for more details.
*
* @var array
*/
private $schema_config;
/**
* Returns config for the migration.
*
* @return array Meta config, must be in following format:
* array(
* 'source' => array(
* 'meta' => array(
* 'table_name' => source_meta_table_name,
* 'entity_id_column' => entity_id column name in source meta table,
* 'meta_key_column' => meta_key column',
* 'meta_value_column' => meta_value column',
* ),
* 'entity' => array(
* 'table_name' => entity table name for the meta table,
* 'source_id_column' => column name in entity table which maps to meta table,
* 'id_column' => id column in entity table,
* ),
* 'excluded_keys' => array of keys to exclude,
* ),
* 'destination' => array(
* 'meta' => array(
* 'table_name' => destination meta table name,
* 'entity_id_column' => entity_id column in meta table,
* 'meta_key_column' => meta key column,
* 'meta_value_column' => meta_value column,
* 'entity_id_type' => data type of entity id,
* 'meta_id_column' => id column in meta table,
* ),
* ),
* )
*/
abstract protected function get_meta_config(): array;
/**
* MetaToMetaTableMigrator constructor.
*/
public function __construct() {
$this->schema_config = $this->get_meta_config();
}
/**
* Return data to be migrated for a batch of entities.
*
* @param array $entity_ids Ids of entities to migrate.
*
* @return array[] Data to be migrated. Would be of the form: array( 'data' => array( ... ), 'errors' => array( ... ) ).
*/
public function fetch_sanitized_migration_data( $entity_ids ) {
$this->clear_errors();
$to_migrate = $this->fetch_data_for_migration_for_ids( $entity_ids );
if ( empty( $to_migrate ) ) {
return array(
'data' => array(),
'errors' => array(),
);
}
$already_migrated = $this->get_already_migrated_records( array_keys( $to_migrate ) );
return array(
'data' => $this->classify_update_insert_records( $to_migrate, $already_migrated ),
'errors' => $this->get_errors(),
);
}
/**
* Migrate a batch of entities from the posts table to the corresponding table.
*
* @param array $entity_ids Ids of entities ro migrate.
*/
protected function process_migration_batch_for_ids_core( array $entity_ids ): void {
$sanitized_data = $this->fetch_sanitized_migration_data( $entity_ids );
$this->process_migration_data( $sanitized_data );
}
/**
* Process migration data for a batch of entities.
*
* @param array $data Data to be migrated. Should be of the form: array( 'data' => array( ... ) ) as returned by the `fetch_sanitized_migration_data` method.
*
* @return array Array of errors and exception if any.
*/
public function process_migration_data( array $data ) {
if ( isset( $data['data'] ) ) {
$data = $data['data'];
}
$this->clear_errors();
$exception = null;
$to_insert = $data[0];
$to_update = $data[1];
try {
if ( ! empty( $to_insert ) ) {
$insert_queries = $this->generate_insert_sql_for_batch( $to_insert );
$processed_rows_count = $this->db_query( $insert_queries );
$this->maybe_add_insert_or_update_error( 'insert', $processed_rows_count );
}
if ( ! empty( $to_update ) ) {
$update_queries = $this->generate_update_sql_for_batch( $to_update );
$processed_rows_count = $this->db_query( $update_queries );
$this->maybe_add_insert_or_update_error( 'update', $processed_rows_count );
}
} catch ( \Exception $e ) {
$exception = $e;
}
return array(
'errors' => $this->get_errors(),
'exception' => $exception,
);
}
/**
* Generate update SQL for given batch.
*
* @param array $batch List of data to generate update SQL for. Should be in same format as output of $this->fetch_data_for_migration_for_ids.
*
* @return string Query to update batch records.
*/
private function generate_update_sql_for_batch( array $batch ): string {
global $wpdb;
$table = $this->schema_config['destination']['meta']['table_name'];
$meta_id_column = $this->schema_config['destination']['meta']['meta_id_column'];
$meta_key_column = $this->schema_config['destination']['meta']['meta_key_column'];
$meta_value_column = $this->schema_config['destination']['meta']['meta_value_column'];
$entity_id_column = $this->schema_config['destination']['meta']['entity_id_column'];
$columns = array( $meta_id_column, $entity_id_column, $meta_key_column, $meta_value_column );
$columns_sql = implode( '`, `', $columns );
$entity_id_column_placeholder = MigrationHelper::get_wpdb_placeholder_for_type( $this->schema_config['destination']['meta']['entity_id_type'] );
$placeholder_string = "%d, $entity_id_column_placeholder, %s, %s";
$values = array();
foreach ( $batch as $entity_id => $rows ) {
foreach ( $rows as $meta_key => $meta_details ) {
// phpcs:disable WordPress.DB.PreparedSQL, WordPress.DB.PreparedSQLPlaceholders
$values[] = $wpdb->prepare(
"( $placeholder_string )",
array( $meta_details['id'], $entity_id, $meta_key, $meta_details['meta_value'] )
);
// phpcs:enable
}
}
$value_sql = implode( ',', $values );
$on_duplicate_key_clause = MigrationHelper::generate_on_duplicate_statement_clause( $columns );
return "INSERT INTO $table ( `$columns_sql` ) VALUES $value_sql $on_duplicate_key_clause";
}
/**
* Generate insert sql queries for batches.
*
* @param array $batch Data to generate queries for.
*
* @return string Insert SQL query.
*/
private function generate_insert_sql_for_batch( array $batch ): string {
global $wpdb;
$table = $this->schema_config['destination']['meta']['table_name'];
$meta_key_column = $this->schema_config['destination']['meta']['meta_key_column'];
$meta_value_column = $this->schema_config['destination']['meta']['meta_value_column'];
$entity_id_column = $this->schema_config['destination']['meta']['entity_id_column'];
$column_sql = "(`$entity_id_column`, `$meta_key_column`, `$meta_value_column`)";
$entity_id_column_placeholder = MigrationHelper::get_wpdb_placeholder_for_type( $this->schema_config['destination']['meta']['entity_id_type'] );
$placeholder_string = "$entity_id_column_placeholder, %s, %s";
$values = array();
foreach ( $batch as $entity_id => $rows ) {
foreach ( $rows as $meta_key => $meta_values ) {
foreach ( $meta_values as $meta_value ) {
$query_params = array(
$entity_id,
$meta_key,
$meta_value,
);
// phpcs:ignore WordPress.DB.PreparedSQL.InterpolatedNotPrepared, WordPress.DB.PreparedSQLPlaceholders
$value_sql = $wpdb->prepare( "$placeholder_string", $query_params );
$values[] = $value_sql;
}
}
}
$values_sql = implode( '), (', $values );
return "INSERT IGNORE INTO $table $column_sql VALUES ($values_sql)";
}
/**
* Fetch data for migration.
*
* @param array $entity_ids Array of IDs to fetch data for.
*
* @return array[] Data, will of the form:
* array(
* 'id_1' => array( 'column1' => array( value1_1, value1_2...), 'column2' => array(value2_1, value2_2...), ...),
* ...,
* )
*/
public function fetch_data_for_migration_for_ids( array $entity_ids ): array {
if ( empty( $entity_ids ) ) {
return array();
}
$meta_query = $this->build_meta_table_query( $entity_ids );
$meta_data_rows = $this->db_get_results( $meta_query );
if ( ! is_array( $meta_data_rows ) || empty( $meta_data_rows ) ) {
return array();
}
foreach ( $meta_data_rows as $migrate_row ) {
if ( ! isset( $to_migrate[ $migrate_row->entity_id ] ) ) {
$to_migrate[ $migrate_row->entity_id ] = array();
}
if ( ! isset( $to_migrate[ $migrate_row->entity_id ][ $migrate_row->meta_key ] ) ) {
// phpcs:ignore WordPress.DB.SlowDBQuery.slow_db_query_meta_key
$to_migrate[ $migrate_row->entity_id ][ $migrate_row->meta_key ] = array();
}
$to_migrate[ $migrate_row->entity_id ][ $migrate_row->meta_key ][] = $migrate_row->meta_value;
}
return $to_migrate;
}
/**
* Helper method to get already migrated records. Will be used to find prevent migration of already migrated records.
*
* @param array $entity_ids List of entity ids to check for.
*
* @return array Already migrated records.
*/
private function get_already_migrated_records( array $entity_ids ): array {
global $wpdb;
$destination_table_name = $this->schema_config['destination']['meta']['table_name'];
$destination_id_column = $this->schema_config['destination']['meta']['meta_id_column'];
$destination_entity_id_column = $this->schema_config['destination']['meta']['entity_id_column'];
$destination_meta_key_column = $this->schema_config['destination']['meta']['meta_key_column'];
$destination_meta_value_column = $this->schema_config['destination']['meta']['meta_value_column'];
$entity_id_type_placeholder = MigrationHelper::get_wpdb_placeholder_for_type( $this->schema_config['destination']['meta']['entity_id_type'] );
$entity_ids_placeholder = implode( ',', array_fill( 0, count( $entity_ids ), $entity_id_type_placeholder ) );
// phpcs:disable WordPress.DB.PreparedSQL.InterpolatedNotPrepared, WordPress.DB.PreparedSQLPlaceholders.UnfinishedPrepare
$data_already_migrated = $this->db_get_results(
$wpdb->prepare(
"
SELECT
$destination_id_column meta_id,
$destination_entity_id_column entity_id,
$destination_meta_key_column meta_key,
$destination_meta_value_column meta_value
FROM $destination_table_name destination
WHERE destination.$destination_entity_id_column in ( $entity_ids_placeholder ) ORDER BY destination.$destination_entity_id_column
",
$entity_ids
)
);
// phpcs:enable
$already_migrated = array();
foreach ( $data_already_migrated as $migrate_row ) {
if ( ! isset( $already_migrated[ $migrate_row->entity_id ] ) ) {
$already_migrated[ $migrate_row->entity_id ] = array();
}
// phpcs:disable WordPress.DB.SlowDBQuery.slow_db_query_meta_key, WordPress.DB.SlowDBQuery.slow_db_query_meta_value
if ( ! isset( $already_migrated[ $migrate_row->entity_id ][ $migrate_row->meta_key ] ) ) {
$already_migrated[ $migrate_row->entity_id ][ $migrate_row->meta_key ] = array();
}
$already_migrated[ $migrate_row->entity_id ][ $migrate_row->meta_key ][] = array(
'id' => $migrate_row->meta_id,
'meta_value' => $migrate_row->meta_value,
);
// phpcs:enable
}
return $already_migrated;
}
/**
* Classify each record on whether to migrate or update.
*
* @param array $to_migrate Records to migrate.
* @param array $already_migrated Records already migrated.
*
* @return array[] Returns two arrays, first for records to migrate, and second for records to upgrade.
*/
private function classify_update_insert_records( array $to_migrate, array $already_migrated ): array {
$to_update = array();
$to_insert = array();
foreach ( $to_migrate as $entity_id => $rows ) {
foreach ( $rows as $meta_key => $meta_values ) {
// If there is no corresponding record in the destination table then insert.
// If there is single value in both already migrated and current then update.
// If there are multiple values in either already_migrated records or in to_migrate_records, then insert instead of updating.
if ( ! isset( $already_migrated[ $entity_id ][ $meta_key ] ) ) {
if ( ! isset( $to_insert[ $entity_id ] ) ) {
$to_insert[ $entity_id ] = array();
}
$to_insert[ $entity_id ][ $meta_key ] = $meta_values;
} else {
if ( 1 === count( $meta_values ) && 1 === count( $already_migrated[ $entity_id ][ $meta_key ] ) ) {
if ( $meta_values[0] === $already_migrated[ $entity_id ][ $meta_key ][0]['meta_value'] ) {
continue;
}
if ( ! isset( $to_update[ $entity_id ] ) ) {
$to_update[ $entity_id ] = array();
}
$to_update[ $entity_id ][ $meta_key ] = array(
'id' => $already_migrated[ $entity_id ][ $meta_key ][0]['id'],
// phpcs:ignore WordPress.DB.SlowDBQuery.slow_db_query_meta_value
'meta_value' => $meta_values[0],
);
continue;
}
// There are multiple meta entries, let's find the unique entries and insert.
$unique_meta_values = array_diff( $meta_values, array_column( $already_migrated[ $entity_id ][ $meta_key ], 'meta_value' ) );
if ( 0 === count( $unique_meta_values ) ) {
continue;
}
if ( ! isset( $to_insert[ $entity_id ] ) ) {
$to_insert[ $entity_id ] = array();
}
$to_insert[ $entity_id ][ $meta_key ] = $unique_meta_values;
}
}
}
return array( $to_insert, $to_update );
}
/**
* Helper method to build query used to fetch data from source meta table.
*
* @param array $entity_ids List of entity IDs to build meta query for.
*
* @return string Query that can be used to fetch data.
*/
private function build_meta_table_query( array $entity_ids ): string {
global $wpdb;
$source_meta_table = $this->schema_config['source']['meta']['table_name'];
$source_meta_key_column = $this->schema_config['source']['meta']['meta_key_column'];
$source_meta_value_column = $this->schema_config['source']['meta']['meta_value_column'];
$source_entity_id_column = $this->schema_config['source']['meta']['entity_id_column'];
$order_by = "source.$source_entity_id_column ASC";
$where_clause = "source.`$source_entity_id_column` IN (" . implode( ', ', array_fill( 0, count( $entity_ids ), '%d' ) ) . ')';
$entity_table = $this->schema_config['source']['entity']['table_name'];
$entity_id_column = $this->schema_config['source']['entity']['id_column'];
$entity_meta_id_mapping_column = $this->schema_config['source']['entity']['source_id_column'];
if ( isset( $this->schema_config['source']['excluded_keys'] ) && is_array( $this->schema_config['source']['excluded_keys'] ) ) {
$key_placeholder = implode( ',', array_fill( 0, count( $this->schema_config['source']['excluded_keys'] ), '%s' ) );
// phpcs:ignore WordPress.DB.PreparedSQL.InterpolatedNotPrepared, WordPress.DB.PreparedSQLPlaceholders.UnfinishedPrepare -- $source_meta_key_column is escaped for backticks, $key_placeholder is hardcoded.
$exclude_clause = $wpdb->prepare( "source.$source_meta_key_column NOT IN ( $key_placeholder )", $this->schema_config['source']['excluded_keys'] );
$where_clause = "$where_clause AND $exclude_clause";
}
// phpcs:disable WordPress.DB.PreparedSQL.InterpolatedNotPrepared, WordPress.DB.PreparedSQLPlaceholders.UnfinishedPrepare
return $wpdb->prepare(
"
SELECT
source.`$source_entity_id_column` as source_entity_id,
entity.`$entity_id_column` as entity_id,
source.`$source_meta_key_column` as meta_key,
source.`$source_meta_value_column` as meta_value
FROM `$source_meta_table` source
JOIN `$entity_table` entity ON entity.`$entity_meta_id_mapping_column` = source.`$source_entity_id_column`
WHERE $where_clause ORDER BY $order_by
",
$entity_ids
);
// phpcs:enable
}
}

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<?php
/**
* Helper class with utility functions for migrations.
*/
namespace Automattic\WooCommerce\Database\Migrations;
use Automattic\WooCommerce\Internal\DataStores\Orders\DataSynchronizer;
use Automattic\WooCommerce\Internal\Utilities\DatabaseUtil;
use Automattic\WooCommerce\Utilities\ArrayUtil;
use Automattic\WooCommerce\Utilities\StringUtil;
/**
* Helper class to assist with migration related operations.
*/
class MigrationHelper {
/**
* Placeholders that we will use in building $wpdb queries.
*
* @var string[]
*/
private static $wpdb_placeholder_for_type = array(
'int' => '%d',
'decimal' => '%f',
'string' => '%s',
'date' => '%s',
'date_epoch' => '%s',
'bool' => '%d',
);
/**
* Helper method to escape backtick in various schema fields.
*
* @param array $schema_config Schema config.
*
* @return array Schema config escaped for backtick.
*/
public static function escape_schema_for_backtick( array $schema_config ): array {
array_walk( $schema_config['source']['entity'], array( self::class, 'escape_and_add_backtick' ) );
array_walk( $schema_config['source']['meta'], array( self::class, 'escape_and_add_backtick' ) );
array_walk( $schema_config['destination'], array( self::class, 'escape_and_add_backtick' ) );
return $schema_config;
}
/**
* Helper method to escape backtick in column and table names.
* WP does not provide a method to escape table/columns names yet, but hopefully soon in @link https://core.trac.wordpress.org/ticket/52506
*
* @param string|array $identifier Column or table name.
*
* @return array|string|string[] Escaped identifier.
*/
public static function escape_and_add_backtick( $identifier ) {
return '`' . str_replace( '`', '``', $identifier ) . '`';
}
/**
* Return $wpdb->prepare placeholder for data type.
*
* @param string $type Data type.
*
* @return string $wpdb placeholder.
*/
public static function get_wpdb_placeholder_for_type( string $type ): string {
return self::$wpdb_placeholder_for_type[ $type ];
}
/**
* Generates ON DUPLICATE KEY UPDATE clause to be used in migration.
*
* @param array $columns List of column names.
*
* @return string SQL clause for INSERT...ON DUPLICATE KEY UPDATE
*/
public static function generate_on_duplicate_statement_clause( array $columns ): string {
$db_util = wc_get_container()->get( DatabaseUtil::class );
return $db_util->generate_on_duplicate_statement_clause( $columns );
}
/**
* Migrate state codes in all the required places in the database, needed after they change for a given country.
*
* @param string $country_code The country that has the states for which the migration is needed.
* @param array $old_to_new_states_mapping An associative array where keys are the old state codes and values are the new state codes.
* @return bool True if there are more records that need to be migrated, false otherwise.
*/
public static function migrate_country_states( string $country_code, array $old_to_new_states_mapping ): bool {
$more_remaining = self::migrate_country_states_for_orders( $country_code, $old_to_new_states_mapping );
if ( ! $more_remaining ) {
self::migrate_country_states_for_misc_data( $country_code, $old_to_new_states_mapping );
}
return $more_remaining;
}
/**
* Migrate state codes in all the required places in the database (except orders).
*
* @param string $country_code The country that has the states for which the migration is needed.
* @param array $old_to_new_states_mapping An associative array where keys are the old state codes and values are the new state codes.
* @return void
*/
private static function migrate_country_states_for_misc_data( string $country_code, array $old_to_new_states_mapping ): void {
self::migrate_country_states_for_shipping_locations( $country_code, $old_to_new_states_mapping );
self::migrate_country_states_for_tax_rates( $country_code, $old_to_new_states_mapping );
self::migrate_country_states_for_store_location( $country_code, $old_to_new_states_mapping );
}
/**
* Migrate state codes in the shipping locations table.
*
* @param string $country_code The country that has the states for which the migration is needed.
* @param array $old_to_new_states_mapping An associative array where keys are the old state codes and values are the new state codes.
* @return void
*/
private static function migrate_country_states_for_shipping_locations( string $country_code, array $old_to_new_states_mapping ): void {
global $wpdb;
// phpcs:disable WordPress.DB.PreparedSQL.NotPrepared
$sql = "SELECT location_id, location_code FROM {$wpdb->prefix}woocommerce_shipping_zone_locations WHERE location_code LIKE '{$country_code}:%'";
$locations_data = $wpdb->get_results( $sql, ARRAY_A );
foreach ( $locations_data as $location_data ) {
$old_state_code = substr( $location_data['location_code'], 3 );
if ( array_key_exists( $old_state_code, $old_to_new_states_mapping ) ) {
$new_location_code = "{$country_code}:{$old_to_new_states_mapping[$old_state_code]}";
$update_query = $wpdb->prepare(
"UPDATE {$wpdb->prefix}woocommerce_shipping_zone_locations SET location_code=%s WHERE location_id=%d",
$new_location_code,
$location_data['location_id']
);
$wpdb->query( $update_query );
}
}
// phpcs:enable WordPress.DB.PreparedSQL.NotPrepared
}
/**
* Migrate the state code for the store location.
*
* @param string $country_code The country that has the states for which the migration is needed.
* @param array $old_to_new_states_mapping An associative array where keys are the old state codes and values are the new state codes.
* @return void
*/
private static function migrate_country_states_for_store_location( string $country_code, array $old_to_new_states_mapping ): void {
$store_location = get_option( 'woocommerce_default_country', '' );
if ( StringUtil::starts_with( $store_location, "{$country_code}:" ) ) {
$old_location_code = substr( $store_location, 3 );
if ( array_key_exists( $old_location_code, $old_to_new_states_mapping ) ) {
$new_location_code = "{$country_code}:{$old_to_new_states_mapping[$old_location_code]}";
update_option( 'woocommerce_default_country', $new_location_code );
}
}
}
/**
* Migrate state codes for orders in the orders table and in the posts table.
* It will migrate only N*2*(number of states) records, being N equal to 100 by default
* but this number can be modified via the woocommerce_migrate_country_states_for_orders_batch_size filter.
*
* @param string $country_code The country that has the states for which the migration is needed.
* @param array $old_to_new_states_mapping An associative array where keys are the old state codes and values are the new state codes.
* @return bool True if there are more records that need to be migrated, false otherwise.
*/
private static function migrate_country_states_for_orders( string $country_code, array $old_to_new_states_mapping ): bool {
global $wpdb;
/**
* Filters the value of N, where the maximum count of database records that will be updated in one single run of migrate_country_states_for_orders
* is N*2*count($old_to_new_states_mapping) if the woocommerce_orders table exists, or N*count($old_to_new_states_mapping) otherwise.
*
* @param int $batch_size Default value for the count of records to update.
* @param string $country_code Country code for the update.
* @param array $old_to_new_states_mapping Associative array of old to new state codes.
*
* @since 7.2.0
*/
$limit = apply_filters( 'woocommerce_migrate_country_states_for_orders_batch_size', 100, $country_code, $old_to_new_states_mapping );
$cot_exists = wc_get_container()->get( DataSynchronizer::class )->check_orders_table_exists();
// phpcs:disable WordPress.DB.PreparedSQL.NotPrepared, WordPress.DB.PreparedSQL.InterpolatedNotPrepared
foreach ( $old_to_new_states_mapping as $old_state => $new_state ) {
if ( $cot_exists ) {
$update_query = $wpdb->prepare(
"UPDATE {$wpdb->prefix}wc_order_addresses SET state=%s WHERE country=%s AND state=%s LIMIT %d",
$new_state,
$country_code,
$old_state,
$limit
);
$wpdb->query( $update_query );
}
// We need to split the update query for the postmeta table in two, select + update,
// because MySQL doesn't support the LIMIT keyword in multi-table UPDATE statements.
$select_meta_ids_query = $wpdb->prepare(
"SELECT meta_id FROM {$wpdb->prefix}postmeta,
(SELECT DISTINCT post_id FROM {$wpdb->prefix}postmeta
WHERE (meta_key = '_billing_country' OR meta_key='_shipping_country') AND meta_value=%s)
AS states_in_country
WHERE (meta_key='_billing_state' OR meta_key='_shipping_state')
AND meta_value=%s
AND {$wpdb->postmeta}.post_id = states_in_country.post_id
LIMIT %d",
$country_code,
$old_state,
$limit
);
$meta_ids = $wpdb->get_results( $select_meta_ids_query, ARRAY_A );
if ( ! empty( $meta_ids ) ) {
$meta_ids = ArrayUtil::select( $meta_ids, 'meta_id' );
$meta_ids_as_comma_separated = '(' . join( ',', $meta_ids ) . ')';
$update_query = $wpdb->prepare(
"UPDATE {$wpdb->prefix}postmeta
SET meta_value=%s
WHERE meta_id IN {$meta_ids_as_comma_separated}",
$new_state
);
$wpdb->query( $update_query );
}
}
$states_as_comma_separated = "('" . join( "','", array_keys( $old_to_new_states_mapping ) ) . "')";
$posts_exist_query = $wpdb->prepare(
"
SELECT 1 FROM {$wpdb->prefix}postmeta
WHERE (meta_key='_billing_state' OR meta_key='_shipping_state')
AND meta_value IN {$states_as_comma_separated}
AND post_id IN (
SELECT post_id FROM {$wpdb->prefix}postmeta WHERE
(meta_key = '_billing_country' OR meta_key='_shipping_country')
AND meta_value=%s
)",
$country_code
);
if ( $cot_exists ) {
$more_exist_query = $wpdb->prepare(
"
SELECT EXISTS(
SELECT 1 FROM {$wpdb->prefix}wc_order_addresses
WHERE country=%s AND state IN {$states_as_comma_separated}
)
OR EXISTS (
{$posts_exist_query}
)",
$country_code
);
} else {
$more_exist_query = "SELECT EXISTS ({$posts_exist_query})";
}
return (int) ( $wpdb->get_var( $more_exist_query ) ) !== 0;
// phpcs:enable WordPress.DB.PreparedSQL.NotPrepared, WordPress.DB.PreparedSQL.InterpolatedNotPrepared
}
/**
* Migrate state codes in the tax rates table.
*
* @param string $country_code The country that has the states for which the migration is needed.
* @param array $old_to_new_states_mapping An associative array where keys are the old state codes and values are the new state codes.
* @return void
*/
private static function migrate_country_states_for_tax_rates( string $country_code, array $old_to_new_states_mapping ): void {
global $wpdb;
foreach ( $old_to_new_states_mapping as $old_state_code => $new_state_code ) {
$wpdb->query(
$wpdb->prepare(
"UPDATE {$wpdb->prefix}woocommerce_tax_rates SET tax_rate_state=%s WHERE tax_rate_country=%s AND tax_rate_state=%s",
$new_state_code,
$country_code,
$old_state_code
)
);
}
}
}

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<?php
/**
* Base class for all the WP posts to order table migrator.
*/
namespace Automattic\WooCommerce\Database\Migrations;
/**
* Base class for implementing WP posts to order tables migrations handlers.
* It mainly contains methods to deal with error handling.
*
* @package Automattic\WooCommerce\Database\Migrations
*/
abstract class TableMigrator {
/**
* An array of cumulated error messages.
*
* @var array
*/
private $errors;
/**
* Clear the error messages list.
*
* @return void
*/
protected function clear_errors(): void {
$this->errors = array();
}
/**
* Add an error message to the errors list unless it's there already.
*
* @param string $error The error message to add.
* @return void
*/
protected function add_error( string $error ): void {
if ( is_null( $this->errors ) ) {
$this->errors = array();
}
if ( ! in_array( $error, $this->errors, true ) ) {
$this->errors[] = $error;
}
}
/**
* Get the list of error messages added.
*
* @return array
*/
protected function get_errors(): array {
return $this->errors;
}
/**
* Run $wpdb->query and add the error, if any, to the errors list.
*
* @param string $query The SQL query to run.
* @return mixed Whatever $wpdb->query returns.
*/
protected function db_query( string $query ) {
$wpdb = WC()->get_global( 'wpdb' );
// phpcs:ignore WordPress.DB.PreparedSQL.NotPrepared
$result = $wpdb->query( $query );
if ( '' !== $wpdb->last_error ) {
$this->add_error( $wpdb->last_error );
}
return $result;
}
/**
* Run $wpdb->get_results and add the error, if any, to the errors list.
*
* @param string|null $query The SQL query to run.
* @param string $output Any of ARRAY_A | ARRAY_N | OBJECT | OBJECT_K constants.
* @return mixed Whatever $wpdb->get_results returns.
*/
protected function db_get_results( ?string $query = null, string $output = OBJECT ) {
$wpdb = WC()->get_global( 'wpdb' );
// phpcs:ignore WordPress.DB.PreparedSQL.NotPrepared
$result = $wpdb->get_results( $query, $output );
if ( '' !== $wpdb->last_error ) {
$this->add_error( $wpdb->last_error );
}
return $result;
}
/**
* Migrate a batch of orders, logging any database error that could arise and the exception thrown if any.
*
* @param array $entity_ids Order ids to migrate.
* @return array An array containing the keys 'errors' (array of strings) and 'exception' (exception object or null).
*
* @deprecated 8.0.0 Use `fetch_sanitized_migration_data` and `process_migration_data` instead.
*/
public function process_migration_batch_for_ids( array $entity_ids ): array {
$this->clear_errors();
$exception = null;
try {
$this->process_migration_batch_for_ids_core( $entity_ids );
} catch ( \Exception $ex ) {
$exception = $ex;
}
return array(
'errors' => $this->get_errors(),
'exception' => $exception,
);
}
// phpcs:disable Squiz.Commenting.FunctionComment.InvalidNoReturn, Squiz.Commenting.FunctionCommentThrowTag.Missing -- Methods are not marked abstract for back compat.
/**
* Return data to be migrated for a batch of entities.
*
* @param array $entity_ids Ids of entities to migrate.
*
* @return array[] Data to be migrated. Would be of the form: array( 'data' => array( ... ), 'errors' => array( ... ) ).
*/
public function fetch_sanitized_migration_data( array $entity_ids ) {
throw new \Exception( 'Not implemented' );
}
/**
* Process migration data for a batch of entities.
*
* @param array $data Data to be migrated. Should be of the form: array( 'data' => array( ... ) ) as returned by the `fetch_sanitized_migration_data` method.
*
* @return array Array of errors and exception if any.
*/
public function process_migration_data( array $data ) {
throw new \Exception( 'Not implemented' );
}
// phpcs:enable
/**
* The core method that actually performs the migration for the supplied batch of order ids.
* It doesn't need to deal with database errors nor with exceptions.
*
* @param array $entity_ids Order ids to migrate.
* @return void
*
* @deprecated 8.0.0 Use `fetch_sanitized_migration_data` and `process_migration_data` instead.
*/
abstract protected function process_migration_batch_for_ids_core( array $entity_ids ): void;
/**
* Check if the amount of processed database rows matches the amount of orders to process, and log an error if not.
*
* @param string $operation Operation performed, 'insert' or 'update'.
* @param array|bool $received_rows_count Value returned by @wpdb after executing the query.
* @return void
*/
protected function maybe_add_insert_or_update_error( string $operation, $received_rows_count ) {
if ( false === $received_rows_count ) {
$this->add_error( "$operation operation didn't complete, the database query failed" );
}
}
}