public Tuple <IEnumerable <Survey>, int> GetActiveSurveys(int page, int size, bool?isPublic, int?filledUserId, int?authorId, int?favoriteUserId, int?groupUserId, int?groupId, string name, string description, string authorFirstName, string authorLastName, string questionText, List <int> categories, int state)
{
return(repository.GetActiveSurveys(page, size, isPublic, filledUserId, authorId, favoriteUserId, groupUserId, groupId, name, description, authorFirstName,
authorLastName, questionText, categories, state));
}