addSql('ALTER TABLE chill_main_workflow_entity_step ALTER transitionat SET NOT NULL'); } public function getDescription(): string { return 'remove not null on transition at'; } public function up(Schema $schema): void { $this->addSql('ALTER TABLE chill_main_workflow_entity_step ALTER transitionat DROP NOT NULL'); $this->addSql('ALTER TABLE chill_main_workflow_entity_step ALTER transitionat SET DEFAULT NULL'); } }