public async Task <OperationResult> Create(int id, string userid, PromotionEnum type, DateTime start, DateTime end)
{
if (await IsPromotionExists(userid, type))
{
return(OperationResult.FailureResult("Promotion failure contact with support !"));
}
var promo = new Promotion
{
Id = id,
UserId = userid,
Type = type,
StartTime = start,
EndTime = end
};
return(await _promotionRepository.AddAsync(promo));
}
private async Task <bool> IsPromotionExists(string userId, PromotionEnum promotion)
{
return(await _promotionRepository.Set().AsNoTracking().AnyAsync(x => (x.UserId == userId) && (x.Type == promotion)));
}
