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我们首先使用 EF 3.5，数据库。更新视图后，我收到下一条错误消息：

错误 1 ​​错误 3002：从第 866 行开始的映射片段问题：表 vPendingOrders 的键（vPendingOrders.AccountId、vPendingOrders.AccountName、vPendingOrders.ApplicationModeTypeId、vPendingOrders.CampaignWorkflowId、vPendingOrders.EndDate、vPendingOrders.HiddenInGeneralList、vPendingOrders.HiddenInOwnerList、 vPendingOrders.InstanceId、vPendingOrders.OrgId、vPendingOrders.StartDate、vPendingOrders.TotalBudget）：列（vPendingOrders.CampaignWorkflowId、vPendingOrders.InstanceId、vPendingOrders.OrgId、vPendingOrders.AccountId、vPendingOrders.AccountName、vPendingOrders.TotalBudget、vPendingOrders.PendingOrders.D.D. , vPendingOrders.HiddenInGeneralList, vPendingOrders.HiddenInOwnerList, vPendingOrders。ApplicationModeTypeId) 映射到 EntitySet vPendingOrders 的属性 (vPendingOrders.CampaignWorkflowId, vPendingOrders.InstanceId, vPendingOrders.OrgId, vPendingOrders.AccountId, vPendingOrders.AccountName, vPendingOrders.TotalBudget, vPendingOrders.StartDate, vPendingOrders.EndDate, vPendingOrders.HiddenInGeneralList, vPendingOrders.HiddenInGeneralList, vPendingOrders.HiddenInGeneralList. .ApplicationModeTypeId），但它们不构成 EntitySet 的关键属性（vPendingOrders.AccountId、vPendingOrders.AccountName、vPendingOrders.ApplicationModeTypeId、vPendingOrders.CampaignWorkflowId、vPendingOrders.EndDate、vPendingOrders.HiddenInGeneralList、vPendingOrders.HiddenInOwnerList、vPendingOrders.InstanceId、vPendingOrders .OrgId、vPendingOrders.SalesRep、vPendingOrders.StartDate、vPendingOrders。总预算）。

如您所见，没有我的新文件 FullName、Email 和 ContactId

视图如下所示：

CREATE VIEW [dbo].[vPendingOrders]
AS
SELECT     TOP (100) PERCENT wf.CampaignWorkflow.CampaignWorkflowId, wf.CampaignWorkflow.InstanceId, dbo.vCampaigns.OrgId, wf.CampaignWorkflow.CampaignId, 
                  dbo.vCampaigns.AccountId, wf.CampaignWorkflow.HasProposalReview, wf.CampaignWorkflow.HasMediaReview, wf.CampaignWorkflow.HasTraffickingEnabled, 
                  dbo.vCampaigns.AccountName, wf.CampaignWorkflow.HasAuthorizedCreditCard, wf.CampaignWorkflow.HasAppliedForCredit, wf.CampaignWorkflow.HasDrops, 
                  dbo.vCampaigns.TotalBudget, wf.CampaignWorkflow.StateMessage, dbo.vCampaigns.StartDate, dbo.vCampaigns.EndDate, dbo.vCampaigns.OwnerId, 
                  dbo.vCampaigns.OwnerType, dbo.vCampaigns.HiddenInGeneralList, dbo.vCampaigns.HiddenInOwnerList, wf.CampaignWorkflow.ApplicationModeTypeId, 
                  dbo.vCampaigns.SalesRep, dbo.vCampaigns.AdvertiserName,
                   --  new values
                   dbo.vCampaigns.FullName, dbo.vCampaigns.Email, dbo.vCampaigns.ContactId
FROM         wf.CampaignWorkflow INNER JOIN
                  dbo.vCampaigns ON wf.CampaignWorkflow.CampaignId = dbo.vCampaigns.CampaignId
ORDER BY wf.CampaignWorkflow.CampaignWorkflowId DESC

此外，我只是尝试将现有列添加为别名（重复）： dbo.vCampaigns.AdvertiserName 下一个第 24 列 \property 的结果是相同的 - 错误 3002

在该字段的属性中，EntityKey 为 false，Nullable 为 true。

我还在这里添加另一个视图，从中获取我的值：

    SELECT     cam.Campaign.CampaignId, cam.Campaign.OrgId, cam.Campaign.OwnerId,    cam.Campaign.AccountId, 
   -- here they are
   cam.Campaign.ContactId, SalesRep.FullName, SalesRep.Email, 
 cam.Campaign.AgencyId, 
                          cam.Campaign.CampaignName, Advertiser.AccountName, Agency.AccountName AS AgencyName, cam.CampaignStatus.Code AS Type, 
                          cam.Campaign.OwnerType, cam.Campaign.StartDate, cam.Campaign.EndDate, dbo.fnGetCampaignRunStatus(cam.Campaign.CampaignId, NULL) 
                          AS Status, wf.CampaignWorkflow.StateMessage, wf.CampaignWorkflow.CampaignWorkflowId, cam.Campaign.TotalBudget, 
                          cam.Campaign.HiddenInGeneralList, cam.Campaign.HiddenInOwnerList, cam.Campaign.Note, 
                          CASE WHEN wf.CampaignWorkflow.ApplicationModeTypeId = 2 THEN CASE WHEN SalesRep.ContactId IS NULL 
                          THEN Owner.FullName ELSE SalesRep.FullName END ELSE CASE WHEN SalesRep.ContactId IS NULL 
                          THEN 'N/A' ELSE SalesRep.FullName END END AS SalesRep, CASE WHEN wf.CampaignWorkflow.ApplicationModeTypeId IS NULL 
                          THEN 1 ELSE wf.CampaignWorkflow.ApplicationModeTypeId END AS ApplicationModeTypeId, 
                          con.CustomListItem.CustomListItemName AS AdvertiserName, cam.Campaign.ClientOrderId
    FROM         cam.Campaign INNER JOIN
                          org.Account AS Advertiser ON cam.Campaign.AccountId = Advertiser.AccountId INNER JOIN
                          cam.CampaignStatus ON cam.Campaign.CampaignStatusId = cam.CampaignStatus.CampaignStatusId INNER JOIN
                          con.Contact AS Owner ON cam.Campaign.OwnerId = Owner.ContactId LEFT OUTER JOIN
                          con.CustomListItem ON cam.Campaign.AdvertiserId = con.CustomListItem.CustomListItemId LEFT OUTER JOIN
                          wf.CampaignWorkflow ON cam.Campaign.CampaignId = wf.CampaignWorkflow.CampaignId LEFT OUTER JOIN
                          org.Account AS Agency ON cam.Campaign.AgencyId = Agency.AccountId AND cam.Campaign.AgencyId = Agency.AccountId LEFT OUTER JOIN
                          con.Contact AS SalesRep ON cam.Campaign.SalesRepId = SalesRep.ContactId

在此处输入图像描述

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1 回答 1

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原因在于 EF 模型更新操作的奇怪更新结果。视图（数据库）中的 SaleRep 仍然是一个键，但在模型视图中，它已从一组键中（自动）删除。但不是无处不在或其他...所以解决方案 - 将实体键设置为 False 并将 Nullable 设置为 True 不是针对新字段，而是针对 SalesRep

于 2013-09-11T12:28:22.773 回答