用户注册初始化购物车异常

来源：12-3 【应用】获得当前用户的购物车

帅帅的小明

2021-05-18

用户注册初始化购物车异常： INSERT 语句与 FOREIGN KEY 约束"FK_ShoppingCarts_AspNetUsers_UserId"冲突。该冲突发生于数据库"Mybatadase"，表"dbo.AspNetUsers", column ‘Id’。

   //初始化购物车
        var shoppingcar = new ShoppingCart() 
        {
            Id=Guid.NewGuid(),
            UserId= user.Id
        };
        _shoppingCartRepository.CreateShoppingCart(shoppingcar);
        _shoppingCartRepository.Sava();

public class ShoppingCart
{
    [Key]
    /// <summary>
    /// 主键
    /// </summary>
    public Guid Id { get; set; }

    /// <summary>
    /// 用户信息
    /// </summary>
    public string UserId { get; set; }
    public IdentityUser User { get; set; }

    /// <summary>
    /// 商品信息
    /// </summary>
    public ICollection<LineItem>  ShoppingCartItems { get; set; }
}

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