public async Task RemoveProduct(int productId)
{
Product rProduct = db.Products.SingleOrDefault(c => c.Id == productId);
if (rProduct == null)
{
throw new Exception("Product Not Found");
}
db.Entry(rProduct).State = EntityState.Deleted;
await db.SaveChangesAsync();
}
public async Task RemoveCategory(int categoryId)
{
Category rCategory = db.Categories.SingleOrDefault(c => c.Id == categoryId);
if (rCategory == null)
{
throw new Exception("Category Not Found");
}
db.Entry(rCategory).State = EntityState.Deleted;
await db.SaveChangesAsync();
}
public async Task RemoveUser(int userId)
{
User rUser = db.Users.SingleOrDefault(c => c.Id == userId);
if (rUser == null)
{
throw new Exception("User Not Found");
}
db.Entry(rUser).State = EntityState.Deleted;
await db.SaveChangesAsync();
}
public async Task BuyProducts(int userId, List <Product> products)
{
products.ForEach(p =>
{
db.Factors.Add(new Factor
{
ProductId = p.Id,
UserId = userId,
Date = DateTime.Now
});
});
products = products.Distinct().ToList();
products.ForEach(p =>
{
db.Entry(p).State = EntityState.Modified;
});
await db.SaveChangesAsync();
}
