addSql('ALTER TABLE user_group CHANGE roles permissions JSON NOT NULL COMMENT \'(DC2Type:json)\''); $this->addSql('CREATE UNIQUE INDEX UNIQ_IDENTIFIER_NAME ON user_group (name)'); } public function down(Schema $schema): void { // this down() migration is auto-generated, please modify it to your needs $this->addSql('DROP INDEX UNIQ_IDENTIFIER_NAME ON user_group'); $this->addSql('ALTER TABLE user_group CHANGE permissions roles JSON NOT NULL COMMENT \'(DC2Type:json)\''); } }