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我的项目中有供应商模型和用户模型，每个供应商都有几个用户
供应商模型

public class SupplierRow
{
    public Guid Id { get; set; }
    public string FullName { get; set; }
    public bool Subscribed { get; set; }

    public bool Active { get; set; }
    public int Visits { get; set; }

    public bool AllUsersInactive { get; set; }
}

和用户模型 

public class UserRow
{
    public Guid Id { get; set; }
    public string FullName { get; set; }
    public string Name { get; set; }
    public string Email { get; set; }
    public int Status { get; set; }
    public int Role { get; set; }

    public Guid SupplierId { get; set; }
    public bool SupplierIsInactive { get; set; }
}

在供应商的控制器中，我检查每个供应商的所有用户是否都没有激活状态

    public ActionResult Grid(bool? active)
    {
        var suppliers = Context.Suppliers.AsNoTracking()
            .WhereIf(active != null, e => e.Active == active)
            .Select(e => new SupplierRow
                            {
                                Id = e.Id,
                                FullName = e.FullName,
                                Active = e.Active,
                                Visits = e.Visits,
                            })
                            .ToList();

        var supplierIds = suppliers.Select(s => s.Id).ToList();
        var suppliersActivityMap = Context.Users.AsNoTracking()
            .Where(e => supplierIds.Contains(e.SupplierId.Value))
            .Select(e => new 
            {
                Status = e.Status,
                SupplierId = e.SupplierId.Value
            })
            .ToList()
            .GroupBy(u => u.SupplierId)
            .Select(x => new 
                { 
                    SuplierId = x.Key, 
                    AllInactive = x.All(u => u.Status != UserStatus.Active) 
                })
            .ToDictionary(x => x.SuplierId);

        foreach (var supplier in suppliers)
        {
            supplier.AllUsersInactive = suppliersActivityMap.ContainsKey(supplier.Id) 
                ? suppliersActivityMap[supplier.Id].AllInactive
                : true;
        }

        return PartialView("_Grid", suppliers);
    }

UPD和我有用户控制器

public ActionResult Index(Guid id)
    {
        var supplierOfUser = Context.Suppliers.AsNoTracking()
            //.Include(e => e.Supplier)
            .FirstOrDefault(e => e.Id == id);


        ViewData.Add("id", id);
        ViewData.Add("SupplierFullName", supplierOfUser.FullName);
        return View();
    }

我需要在这里添加检查供应商的用户是否处于非活动状态，但我不知道如何进行查询。

4

1 回答 1

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这是没有真实对象的硬编码，我希望这是正确的：

public ActionResult Grid(int? status, Pager pager, Guid? supplierId)
{

    var sActive = Context.Suppliers.AsNoTracking()
       .WhereIf(o=> o.Id == supplierId)
       .Select(o=> o.Active).FirstOrDefault();

    var page = Context.Users.AsNoTracking()
        .Where(e => e.SupplierId == supplierId)
        .WhereIf(status != null, e => (e.Status == status))
        .Select(e => new UserRow
        {
            Id = e.Id,
            FullName = e.FullName,
            Email = e.Email,
            Name = e.Name,
            Status = e.Status,
            Role = e.Role,
            SupplierIsInactive = !sActive
        })
        .GetPage(pager, Sorter.Asc<UserRow, string>(e => e.FullName));

    return PartialView("_Grid", page);
}
于 2013-06-13T07:07:44.620 回答