Method getRoleIDsUsingIndex

db/database.go:1356–1438

getRoleIDsUsingIndex returns names of all roles. includDeleted toggles whether or not to include deleted roles.

(ctx context.Context, includeDeleted bool)

// getRoleIDsUsingIndex returns names of all roles. includDeleted toggles whether or not to include deleted roles.
func (db *DatabaseContext) getRoleIDsUsingIndex(ctx context.Context, includeDeleted bool) (roles []string, err error) {

	dbRoleIDPrefix := db.MetadataKeys.RoleKeyPrefix()

	roleRe, err := regexp.Compile(`^` + dbRoleIDPrefix + `[^:]*$`)
	if err != nil {
		return nil, err
	}
	startKey := dbRoleIDPrefix
	limit := db.Options.QueryPaginationLimit
	if limit == 0 {
		limit = DefaultQueryPaginationLimit
	}

	roles = []string{}

outerLoop:
	for {
		var results sgbucket.QueryResultIterator
		var err error
		if includeDeleted {
			results, err = db.QueryAllRoles(ctx, startKey, limit)
		} else {
			results, err = db.QueryRoles(ctx, startKey, limit)
		}
		if err != nil {
			return nil, err
		}

		var roleName string
		lenRoleKeyPrefix := len(dbRoleIDPrefix)

		resultCount := 0

		for {
			// startKey is inclusive for views, so need to skip first result if using non-empty startKey, as this results in an overlapping result
			var skipAddition bool
			if resultCount == 0 && startKey != dbRoleIDPrefix {
				skipAddition = true
			}

			var queryRow principalRow
			found := results.Next(ctx, &queryRow)
			if !found {
				break
			}
			if len(queryRow.Id) < lenRoleKeyPrefix {
				continue
			}
			if !strings.HasPrefix(queryRow.Id, dbRoleIDPrefix) {
				break
			}
			if !db.UseViews() {
				roleName = queryRow.Name
			} else {
				roleName = queryRow.Id[lenRoleKeyPrefix:]

			}