EFはまったく新しいので、基本的にこのSQLクエリを変換したいと思います。
SELECT
PSKU.ProductSKUID,
PSKU.ProductSKUName,
W.WarehouseID,
W.WarehouseName,
SA.SystemAreaName,
COUNT(SLI.ProductSKUID) AS QTY
FROM dbo.StockLineItem AS SLI INNER JOIN
dbo.ProductSKU AS PSKU ON PSKU.ProductSKUID = SLI.ProductSKUID INNER JOIN
dbo.Warehouse AS W ON W.WarehouseID = SLI.WarehouseID INNER JOIN
dbo.SystemArea AS SA ON SA.SystemAreaID = SLI.SystemAreaID
WHERE (SA.SystemAreaID = 1)
AND W.WarehouseID = @WarehouseID
GROUP BY PSKU.ProductSKUID, PSKU.ProductSKUName, W.WarehouseName, SA.SystemAreaName, W.WarehouseID
効果的なEFステートメントへ。これは私がこれまでに持っているもの、私のモデルクラスとメソッドです:
[Serializable]
public class StockReturnMethod
{
public int ProductSKUID { get; set; }
public int WarehouseID { get; set; }
public int LotID { get; set; }
public string LotName { get; set; }
public int AreaID { get; set; }
public string AreaName { get; set; }
public int BinID { get; set; }
public string BinName { get; set; }
}
public class DALStockMovement
{
scmEntitiesPrimaryCon entities = new scmEntitiesPrimaryCon();
public List<AvailibleStock> AvailibleStockQty(int warehouseID)
{
var rows = (from PLA in entities.ProductLocationAssignments
from W in entities.Warehouses
from SLI in entities.StockLineItems
from SA in entities.SystemAreas
from PSKU in entities.ProductSKUs
where W.WarehouseID == warehouseID
select new AvailibleStock() { WarehouseID = W.WarehouseID, ProductSKUID = PSKU.ProductSKUID, ProductSKUName = PSKU.ProductSKUName, WarehouseName = W.WarehouseName, Status = SA.SystemAreaName, QtyUnassigned = SLI.ProductSKUID }).ToList();
return rows;
}
これを効果的なEFステートメントにするためのアドバイスをいただければ幸いです。