public async Task RemoveFromMyConcertsAsync(int concertId, string userId)
{
var userConcert = new UserConcert
{
UserId = userId,
ConcertId = concertId,
};
this.userConcertRepository.Delete(userConcert);
await this.userConcertRepository.SaveChangesAsync();
}
public async Task AddToMyConcertsAsync(int concertId, string userId)
{
if (await this.IsInMyConcertsAsync(concertId, userId))
{
return;
}
var userConcert = new UserConcert
{
UserId = userId,
ConcertId = concertId,
};
await this.userConcertRepository.AddAsync(userConcert);
await this.userConcertRepository.SaveChangesAsync();
}
