func()

in server/datasource/mongo/kv/kv_dao.go [330:360]

• 29 lines of code
• 7 McCabe index (conditional complexity)

func (s *Dao) Exist(ctx context.Context, key, project, domain string, options ...datasource.FindOption) (bool, error) {
	opts := datasource.FindOptions{}
	for _, o := range options {
		o(&opts)
	}
	if opts.LabelFormat != "" {
		_, err := findKVByLabel(ctx, domain, opts.LabelFormat, key, project)
		if err != nil {
			if err == datasource.ErrKeyNotExists {
				return false, nil
			}
			openlog.Error(err.Error())
			return false, err
		}
		return true, nil
	}
	kvs, err := s.List(ctx, domain, project,
		datasource.WithExactLabels(),
		datasource.WithLabels(opts.Labels),
		datasource.WithKey(key))
	if err != nil {
		openlog.Error("check kv exist: " + err.Error())
		return false, err
	}
	if len(kvs.Data) != 1 {
		return false, datasource.ErrTooMany
	}

	return true, nil

}