addSql('ALTER TABLE company ADD wallet_config JSON DEFAULT NULL'); $this->addSql("UPDATE company SET wallet_config = '[]' WHERE wallet_config IS NULL"); $this->addSql('ALTER TABLE company MODIFY wallet_config JSON NOT NULL'); } public function down(Schema $schema): void { // this down() migration is auto-generated, please modify it to your needs $this->addSql('ALTER TABLE company DROP wallet_config'); } }