owncloud / core

			}

			$user = $this->userManager->get($userId);

			$usersGroups = $this->groupManager->getUserGroupIds($user);

			if (!empty($usersGroups)) {

				$remainingGroups = array_diff($usersGroups, $excludedGroups);

				// if the user is only in groups which are disabled for sharing then

				// sharing is also disabled for the user

				if (empty($remainingGroups)) {

					$this->sharingDisabledForUsersCache[$userId] = true;

					return true;

				}

			}

		}

		$this->sharingDisabledForUsersCache[$userId] = false;

				$config->setAppValue('core', 'shareapi_exclude_groups_list', $newValue);

			}

			$usersGroups = $groupManager->getUserGroupIds($user);

			if (!empty($usersGroups)) {

				$remainingGroups = array_diff($usersGroups, $excludedGroups);

				// if the user is only in groups which are disabled for sharing then

				// sharing is also disabled for the user

				if (empty($remainingGroups)) {

					return true;

				}

			}

		}

		return false;

	}