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Migrations Events

The migrations library emits a series of events during the migration process.

  • onMigrationsMigrating: fired immediately before starting to execute versions. This does not fire if there are no versions to be executed.
  • onMigrationsVersionExecuting: fired before a single version executes.
  • onMigrationsVersionExecuted: fired after a single version executes.
  • onMigrationsVersionSkipped: fired when a single version is skipped.
  • onMigrationsMigrated: fired when all versions have been executed.

All of these events are emitted via the connection's event manager. Here's an example event subscriber that listens for all possible migrations events.

<?phpuse Doctrine\Common\EventSubscriber;use Doctrine\DBAL\Migrations\Event\MigrationsEventArgs;use Doctrine\DBAL\Migrations\Event\MigrationsVersionEventArgs;class MigrationsListener implements EventSubscriber{    public function getSubscribedEvents()    {        return [            Events::onMigrationsMigrating,            Events::onMigrationsMigrated,            Events::onMigrationsVersionExecuting,            Events::onMigrationsVersionExecuted,            Events::onMigrationsVersionSkipped,        ];    }    public function onMigrationsMigrating(MigrationsEventArgs $args)    {        // ...    }    public function onMigrationsMigrated(MigrationsEventArgs $args)    {        // ...    }    public function onMigrationsVersionExecuting(MigrationsVersionEventArgs $args)    {        // ...    }    public function onMigrationsVersionExecuted(MigrationsVersionEventArgs $args)    {        // ...    }    public function onMigrationsVersionSkipped(MigrationsVersionEventArgs $args)    {        // ...    }}

To hook a migrations event subscriber into a connection, use its event manager. This might go in the cli-config.php file or somewhere in a frameworks container or dependency injection configuration.

<?phpuse Doctrine\DBAL\DriverManager;$conn = DriverManager::getConnection([  // ...]);$conn->getEventManager()->addEventSubscriber(new MigrationsListener());// rest of the cli set up...