public async Task Delete(string promoId)
{
if (!await this.db.PromoDiscounts.AnyAsync(p => p.Id == promoId))
{
throw new ArgumentException("Cannot find promo in DB");
}
IList <ProductPromoDiscount> productPromoDiscounts = await this.db.ProductPromoDiscounts
.Where(p => p.PromoDiscountId == promoId)
.ToListAsync();
this.db.ProductPromoDiscounts.RemoveRange(productPromoDiscounts);
await this.db.SaveChangesAsync();
PromoDiscount promo = await this.db.PromoDiscounts.FirstOrDefaultAsync(p => p.Id == promoId);
this.db.PromoDiscounts.Remove(promo);
await this.db.SaveChangesAsync();
}
public async Task Edit(string promoId, PromoDiscountCreateModel data)
{
if (data.Discount < 0 || data.Discount > 100)
{
throw new ArgumentException("Discount must be between 0 and 100");
}
if (!await this.db.PromoDiscounts.AnyAsync(p => p.Id == promoId))
{
throw new ArgumentException("Cannot find promo in DB");
}
PromoDiscount promo = await this.db.PromoDiscounts.FirstOrDefaultAsync(p => p.Id == promoId);
promo.Name = data.Name;
promo.Discount = data.Discount;
promo.EndDate = data.EndDate;
promo.StartDate = data.StartDate;
await this.db.SaveChangesAsync();
}
public async Task <string> Create(PromoDiscountCreateModel data)
{
if (data.Discount < 0 || data.Discount > 100)
{
throw new ArgumentException("Discount must be between 0 and 100");
}
PromoDiscount discount = new PromoDiscount
{
Name = data.Name,
Discount = data.Discount,
StartDate = data.StartDate,
EndDate = data.EndDate
};
await this.db.PromoDiscounts
.AddAsync(discount);
await this.db.SaveChangesAsync();
return(discount.Id);
}
