Method Keys

structure/list.go:437–460

Keys returns all the keys of the list structure.

(regx string)

// Keys returns all the keys of the list structure.
func (l *ListStructure) Keys(regx string) ([]string, error) {
	toRegexp := convertToRegexp(regx)
	compile, err := regexp.Compile(toRegexp)
	if err != nil {
		return nil, err
	}
	var keys []string
	byteKeys := l.db.GetListKeys()
	for _, key := range byteKeys {
		// match prefix and key
		if compile.MatchString(string(key)) {
			// check if deleted
			db, _, err := l.getListFromDB(string(key), true)
			if err != nil {
				continue
			}
			if db.Length == 0 {
				continue
			}
			keys = append(keys, string(key))
		}
	}
	return keys, nil
}

// RPOPLPUSH removes the last element from one list and pushes it to another list.
// If the source list is empty, an error is returned.