public async Task <int> AddSongThemeUserAsync(int songThemeId, string userId) { try { return(await _themeRepository.AddSongThemeUserAsync(new SongThemeUser { SongThemeId = songThemeId, ApplicationUserId = userId, CreatedById = userId, LastModifiedById = userId, DateCreated = DateTime.Now, DateLastModified = DateTime.Now, })); } catch (Exception ex) { return(-1); } }