Question

我有一个模型，该模型的子集合仅返回第一条记录。父（userModel）看起来像：

//start running timer in the HTML widget
var runningTimer = new Timer();
runningTimer.start({precision: 'seconds', startValues: {seconds: startSeconds}});
runningTimer.addEventListener('secondsUpdated', function (e) {
  $('#timerDiv').html(timerRun.getTimeValues().toString());
});

//attach event listener to page onDetach event to stop timer
widget.root.getElement().addEventListener("unload", function(){
    runningTimer.stop();
    console.log("Timer stopped");
)};

不能正确补水的模型是UserMember集合。看起来像这样：

 public class User
{

    [Key]
    public int UserID { get; set; }
    public string Username { get; set; }
    [StringLength(50)]
    public string EmailAddress { get; set; }
    public bool IsDeleted{ get; set; }
    [ForeignKey("UserID")]
    public virtual UserInformation UserInformation{ get; set; }
    [ForeignKey("UserID")]
    public virtual IEnumerable<UserMember> UserMember{ get; set; }

}

我正在使用的查询是：

 public class UserMember
{
    [Key]
    public int UserID { get; set; }
    public int GroupID { get; set; }
    public DateTimeOffset Created { get; set; }
    public virtual Group Group { get; set; }
}

它正在给一个UserMember补水，但是我希望看到3个结果。用户-> UserMember。

我尝试将IEnumerable更改为ICollection，但它也不起作用。除了通常的映射等之外，我在上下文中没有任何流畅的语法代码-modelBuilder.Entity（）。ToTable（“ user”，“ info”）;

有什么想法吗？

Answer 1

您没有正确映射外键。您的模型类应如下所示：

public class User
{

    [Key]
    public int UserID { get; set; }
    public string Username { get; set; }
    [StringLength(50)]
    public string EmailAddress { get; set; }
    public bool IsDeleted{ get; set; }

    public virtual UserInformation UserInformation{ get; set; }

    public virtual ICollection<UserMember> UserMembers { get; set; }

}

public class UserMember
{
    [Key]
    [ForeignKey("User")]
    public int UserID { get; set; }
    public int GroupID { get; set; }
    public DateTimeOffset Created { get; set; }
    public virtual Group Group { get; set; }

    public virtual User User {get; set;}
}

然后您的查询应如下：

public IQueryable<User> GetUserByUserSId(Guid userId)
{
        return _freightPortalPreferencesContext.User
                .Include(u => u.UserInformation)
                .Include(u => u.UserMembers)
                .Where(u => u.SID == userId && u.Enabled).AsQueryable();

}

子集合未填充超过1个结果

1 个答案: