public void AddItem(ChineseTeaShopEntities dbContext, TeaProduct product, decimal finalPrice, int quantity, string userId)
{
//Search whether cart has desired product
ShRecord record = recordCollection.FirstOrDefault(m => m.TeaProduct == product);
if (record == null || record.IsCompleted == true)
{
ShRecord updateRecord = new ShRecord {
ProductId = product.ID, TeaProduct = product, FinalPrice = finalPrice, Quantity = quantity, AddTime = DateTime.Now, UserId = userId
};
//update database
dbContext.ShRecords.Add(updateRecord);
dbContext.SaveChanges();
//update shopping cart
recordCollection.Add(updateRecord);
}
else if (record.IsCompleted == false)
{
record.Quantity += quantity;
record.FinalPrice += finalPrice;
dbContext.Entry(record).State = System.Data.Entity.EntityState.Modified;
dbContext.SaveChanges();
}
}
