addSql('ALTER TABLE chill_person_household_members ALTER startDate SET NOT NULL'); $this->addSql('ALTER TABLE chill_person_household_members ALTER endDate SET NOT NULL'); } public function getDescription(): string { return 'Household members: allow startdate and enddate to be null'; } public function up(Schema $schema): void { $this->addSql('ALTER TABLE chill_person_household_members ALTER startdate DROP NOT NULL'); $this->addSql('ALTER TABLE chill_person_household_members ALTER enddate DROP NOT NULL'); } }