migration = $factory; } public function getMigrations(Updater $updater) { $migrations = []; $migrations[] = $this->migration->db->addColumn('segment', 'hash', 'CHAR(32) NULL', 'definition'); return $migrations; } public function doUpdate(Updater $updater) { $updater->executeMigrations(__FILE__, $this->getMigrations($updater)); } }