nextcloud / server

	 * @param IUser $user

	 * @param array $data

	 */

	protected function updateExistingUser(IUser $user, $data) {

		$uid = $user->getUID();

		$jsonEncodedData = json_encode($data);

		$query = $this->connection->getQueryBuilder();

		$query->update($this->table)

			->set('data', $query->createNamedParameter($jsonEncodedData))

			->where($query->expr()->eq('uid', $query->createNamedParameter($uid)))

			->execute();

	}

	/**

	 * build default user record in case not data set exists yet

	 * @param string $className

	 * @return bool

	 */

	public function has($table, $className) {

		$query = $this->dbc->getQueryBuilder();

		$query->select('class')

			->from($table)

			->where($query->expr()->eq('class', $query->createNamedParameter($className)))

			->setMaxResults(1);

		$result = $query->execute();

		$row = $result->fetch();

		$result->closeCursor();

		return (bool)$row;

	}

	/**

	 * deletes an settings or admin entry from the given table

		$query->execute();

	}

	public function removeUserStorageMount($storageId, $userId) {

		$builder = $this->connection->getQueryBuilder();

		$query = $builder->delete('mounts')

			->where($builder->expr()->eq('user_id', $builder->createNamedParameter($userId)))

			->andWhere($builder->expr()->eq('storage_id', $builder->createNamedParameter($storageId, IQueryBuilder::PARAM_INT)));

		$query->execute();

	}

	public function remoteStorageMounts($storageId) {

		$builder = $this->connection->getQueryBuilder();