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次のもので埋めたいグリッドがあります。

昨年の毎月のオープンチケットを追跡しています。グリッドは優先度によってフィルタリングされるため、次のようなものがあります。

| Mon | Critical | High | Tot |
| Jan |    5     |  2   |  7  |
| Feb |    2     |  3   |  5  |

これは私のSQL文です：

SELECT
    MONTH(CreateDate),
    DATENAME(MONTH,m.CreateDate) AS 'Month',
    SUM(CASE WHEN (m.PriorityId = 1) THEN 1 ELSE 0 END) AS 'Critical',
    SUM(CASE WHEN (m.PriorityId = 2) THEN 1 ELSE 0 END) AS 'High',
    SUM(CASE WHEN (m.PriorityId = 3) THEN 1 ELSE 0 END) AS 'Normal',
    SUM(CASE WHEN (m.PriorityId = 4) THEN 1 ELSE 0 END) AS 'Low',
    SUM(CASE WHEN (m.PriorityId = 5) THEN 1 ELSE 0 END) AS 'Not Ready',
    Count(m.Id) AS Total
FROM
    [projects].[dbo].[tblMaintenanceTicket] m
INNER JOIN
    [projects].[dbo].[tblPriority] p
ON
    p.Id = m.PriorityId
WHERE
    StatusId = 1
    AND YEAR(CreateDate) = year(getdate())
GROUP BY 
    MONTH(CreateDate),
    DATENAME(MONTH,m.CreateDate)
ORDER BY
    MONTH(CreateDate)

これを VB LINQ で変換しようとしていますが、これが最善の方法かどうかはわかりません。ストアドプロシージャの呼び出しも考えていますが、本当はDBから離れたいです。リポジトリ パターンで MVC 3 を使用しているため、コードを呼び出すと、JSON の出力は次のようになります。

Dim tickets = ticketRepo.GetAll().Include(Function(p) p.Priority).ToArray()

何か援助はありますか？

4

1 に答える 1

2

現在、StatusId が tblMaintenanceTicket テーブルにあると仮定して、できることは次のとおりです。

ビジュアルベーシック:

Module Module1

    Sub Main()

    Dim rand As New Random
    Dim list As New List(Of tblMaintenanceTicket)
    For count = 1 To 100

      Dim newTicket As New tblMaintenanceTicket

      newTicket.CreateDate = Now.AddDays(rand.Next(0, 365) * -1)
      newTicket.PriorityId = rand.Next(1, 6)
      newTicket.StatusId = 1

      list.Add(newTicket)

    Next

    Dim results = From ticket In list _
                  Where ticket.StatusId = 1 And ticket.CreateDate.Year = Now.Year _
                  Group ticket By ticket.CreateDate.Month Into Group _
                  Select New TicketResults With { _
                    .Month = Month,
                    .Critical = Group.Count(Function(t) t.PriorityId = 1),
                    .High = Group.Count(Function(t) t.PriorityId = 2),
                    .Normal = Group.Count(Function(t) t.PriorityId = 3),
                    .Low = Group.Count(Function(t) t.PriorityId = 4),
                    .NotReady = Group.Count(Function(t) t.PriorityId = 5)
                  }


    End Sub

  Public Class tblMaintenanceTicket

    Public CreateDate As Date
    Public PriorityId As Integer
    Public StatusId As Integer

  End Class

  Public Class TicketResults

    Public Month As Integer
    Public Critical As Integer
    Public High As Integer
    Public Normal As Integer
    Public Low As Integer
    Public NotReady As Integer

  End Class

End Module

C#:

  class Program
  {
    static void Main(string[] args)
    {
      //Generate some random data
      var list = new List<tblMaintenanceTicket>();    
      var rand = new Random();    
      for (var count = 0; count < 100; ++count)
      {
        var newTicket = new tblMaintenanceTicket();

        newTicket.CreateDate = DateTime.Now.AddDays(rand.Next(0, 365)* -1);
        newTicket.PriorityId = rand.Next(1, 6);
        newTicket.StatusId = 1;

        list.Add(newTicket);
      }


      var results = from ticket in list
                    where ticket.StatusId == 1 && ticket.CreateDate.Year == DateTime.UtcNow.Year
                    group ticket by ticket.CreateDate.Month into months
                    select new TicketResults
                    {
                      Month = months.Key,
                      Critical = months.Count(m => m.PriorityId == 1),
                      High = months.Count(m => m.PriorityId == 2),
                      Normal = months.Count(m => m.PriorityId == 3),
                      Low = months.Count(m => m.PriorityId == 4),
                      NotReady = months.Count(m => m.PriorityId == 5)
                    };

      System.Diagnostics.Debugger.Break();
    }
  }

  public class TicketResults
  {
    public int Month { get; set; }
    public int Critical { get; set; }
    public int High { get; set; }
    public int Normal { get; set; }
    public int Low { get; set; }
    public int NotReady { get; set; }
  }

  public class tblMaintenanceTicket
  {
    public DateTime CreateDate { get; set; }
    public int PriorityId { get; set; }
    public int StatusId { get; set; }
  }
于 2012-11-08T13:51:56.343 に答える