使用存储库模式，实体框架，MVC的查询过多

Question

我仍然有一个问题，但是在这里人们的帮助下，我越来越接近。

我使用的是EF Profiler，当我加载仪表板控制器时，它正在运行许多查询，这些查询从数据库“实质上”撤回了相同的数据。 这是我的控制器示例：

Public Class DashboardController
    Inherits BaseController

    Private ticketRepo As MaintenanceTicketsRepository

    Public Sub New()
        Me.ticketRepo = New MaintenanceTicketsRepository(New TicketContext)
    End Sub

    Function Chart_OpenItemsByPM() As ActionResult
        Dim tickets As IList(Of MaintenanceTicket) = ticketRepo.GetAll().Include(Function(p) p.Priority).Include(Function(s) s.Status).OrderBy(Function(o) o.PriorityId).ToArray()

        Dim queue As PieChartViewModel() = Mapper.Map(Of MaintenanceTicket(), PieChartViewModel())(tickets)

        Dim ticketCounts = From t In queue _
                           Where t.StatusName = "Open" And _
                           t.PriorityName <> "Not Ready" _
                           Group t By t.PriorityName Into Count() _
                           Select New With {
                               .PriorityName = PriorityName,
                               .Id = Count,
                               .Explosion = If(.PriorityName = "Critical", "True", "False")
                           }

        Return Json(ticketCounts)
    End Function

    Function Grid_OpenItemsByPriority(<DataSourceRequest()> request As DataSourceRequest) As ActionResult
        Dim tickets As IList(Of MaintenanceTicket) = ticketRepo.GetAll().Include(Function(p) p.Priority).Include(Function(s) s.Status).ToArray()

        Dim queue As GridViewModel() = Mapper.Map(Of MaintenanceTicket(), GridViewModel())(tickets)

        Dim ticketCounts = From t In queue _
                           Where _
                           t.StatusId = 1 And _
                           t.CreateDate.Year = Convert.ToDateTime(DateTime.Now).Year _
                           Group t By _
                           Column1 = CType(t.CreateDate.Month, Integer), _
                           Column2 = CType(t.CreateDate.ToString("MMMM"), String) _
                           Into g = Group _
                           Order By Column1 _
                           Select New With {
                               .Id = Column1,
                               .Month = Column2,
                               .Critical = g.Count(Function(t) t.PriorityId = 1),
                               .High = g.Count(Function(t) t.PriorityId = 2),
                               .Normal = g.Count(Function(t) t.PriorityId = 3),
                               .Low = g.Count(Function(t) t.PriorityId = 4),
                               .NotReady = g.Count(Function(t) t.PriorityId = 5),
                               .Total = g.Count(Function(t) t.Id <> Nothing)
                           }

        Return Json(ticketCounts.ToDataSourceResult(request))
    End Function

    Protected Overrides Sub Dispose(disposing As Boolean)
        ticketRepo.Dispose()
        MyBase.Dispose(disposing)
    End Sub
End Class

您将看到有一些函数（通过ajax调用到Kendo Controls中），但是每个函数都填充了存储库，然后将数据映射到我的viewmodel中，然后我需要进行排序并执行实际过程以获取最终输出。 我在每个函数中都执行此操作，并且页面上的加载时间很长，并且使服务器异常繁忙。

关于如何通过一个查询加载仓库的任何想法？

Answer 1

我最终使用存储过程来限制返回到我的存储库的数据，从而加快了数据访问速度。