/**
* Run a migration to the current version or the given target version.
*
* @param string $to The version to migrate to.
*
* @throws AntiMattr\MongoDB\Migrations\Exception\UnknownVersionException
* @throws AntiMattr\MongoDB\Migrations\Exception\NoMigrationsToExecuteException
*/
public function migrate($to = null)
{
if ($to === null) {
$to = $this->configuration->getLatestVersion();
}
$from = $this->configuration->getCurrentVersion();
$from = (string) $from;
$to = (string) $to;
$migrations = $this->configuration->getMigrations();
if (!isset($migrations[$to]) && $to > 0) {
throw new UnknownVersionException($to);
}
$direction = $from > $to ? 'down' : 'up';
$migrationsToExecute = $this->configuration->getMigrationsToExecute($direction, $to);
if ($from === $to && empty($migrationsToExecute) && $migrations) {
return;
}
$this->outputWriter->write(sprintf('Migrating <info>%s</info> to <comment>%s</comment> from <comment>%s</comment>', $direction, $to, $from));
if (empty($migrationsToExecute)) {
throw new NoMigrationsToExecuteException('Could not find any migrations to execute.');
}
$time = 0;
foreach ($migrationsToExecute as $version) {
$versionSql = $version->execute($direction);
$time += $version->getTime();
}
$this->outputWriter->write("\n <comment>------------------------</comment>\n");
$this->outputWriter->write(sprintf(" <info>++</info> finished in %s", $time));
$this->outputWriter->write(sprintf(" <info>++</info> %s migrations executed", count($migrationsToExecute)));
}
