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ðŸ“„ CLIRunner.php(45.51 KB)
ðŸ“„ PostMetaToOrderMetaMigrator.php(1.88 KB)
ðŸ“„ PostToOrderAddressTableMigrator.php(4.4 KB)
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ðŸ“„ PostToOrderTableMigrator.php(3.6 KB)
ðŸ“„ PostsToOrdersMigrationController.php(8.46 KB)

Editing: PostsToOrdersMigrationController.php

<?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\Utilities\ArrayUtil;

/**
 * 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 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();
		}

}

/**
	 * 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();
		}
	}

/**
	 * 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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