func()

in server/datasource/etcd/kv/kv_dao.go [189:211]

• 23 lines of code
• 6 McCabe index (conditional complexity)

func (s *Dao) Exist(ctx context.Context, key, project, domain string, options ...datasource.FindOption) (bool, error) {
	opts := datasource.FindOptions{Key: key}
	for _, o := range options {
		o(&opts)
	}
	kvs, err := s.listNoAuth(ctx, project, domain,
		datasource.WithExactLabels(),
		datasource.WithLabels(opts.Labels),
		datasource.WithLabelFormat(opts.LabelFormat),
		datasource.WithKey(key),
		datasource.WithCaseSensitive())
	if err != nil {
		openlog.Error("check kv exist: " + err.Error())
		return false, err
	}
	if IsUniqueFind(opts) && len(kvs.Data) == 0 {
		return false, nil
	}
	if len(kvs.Data) != 1 {
		return false, datasource.ErrTooMany
	}
	return true, nil
}