public async Task UseCoupon(int CouponId)
{
var couponToUpdate = await _discountDbContext.Coupons.Where(c => c.CouponId == CouponId).FirstOrDefaultAsync();
if (couponToUpdate == null)
{
throw new Exception();
}
couponToUpdate.AlreadyUsed = true;
await _discountDbContext.SaveChangesAsync();
}
public async Task UseCoupon(Guid couponId)
{
var couponToUpdate =
await _discountDbContext.Coupons.Where(x => x.CouponId == couponId).FirstOrDefaultAsync();
if (couponToUpdate == null)
throw new Exception();//TODO custom exception
couponToUpdate.AlreadyUsed = true;
await _discountDbContext.SaveChangesAsync();
}
public async Task UseCouponAsync(Guid couponId, CancellationToken cancellationToken = default)
{
var couponToUpdate =
await _discountDbContext.Coupons.Where(x => x.CouponId == couponId)
.FirstOrDefaultAsync(cancellationToken);
if (couponToUpdate == null)
{
throw new Exception($"Coupon not found by id: {couponId}");
}
couponToUpdate.Used();
await _discountDbContext.SaveChangesAsync();
}