Question

当固定资产中的自定义字段“企业帐户位置”更改时，我试图在视图中插入历史记录“ ProspectiveAccountLocationHistory”。因此，每次用户在该字段中进行更改时，都会添加一条新记录。我正在尝试做与固定资产中的位置记录完全相同的操作。因此，我的新DAC与DAC'FALocationHistory'非常相似。

因此，为此，我添加了一个数据库表名称“ ProspectiveAccountLocationHistory”。我在表中有CompanyID，AssetID和RevisionID的组合键。

并基于该数据库表生成DAC。

using System;
using PX.Data;
using PX.Objects.FA;
using PX.Objects.CR;

namespace ProspectBusinessAccountInFixedAsset
{
    [Serializable]
    public class ProspectiveAccountLocationHistory : IBqlTable
    {
        #region AssetID
        [PXDBInt(IsKey = true)]
        [PXUIField(Visible=false, Visibility =PXUIVisibility.Invisible)]
        [PXParent(typeof(Select<FixedAsset, Where<FixedAsset.assetID, Equal<Current<ProspectiveAccountLocationHistory.assetID>>>>))]
        [PXDBLiteDefault(typeof(FixedAsset.assetID))]
        public virtual int? AssetID { get; set; }
        public abstract class assetID : PX.Data.BQL.BqlInt.Field<assetID> { }
        #endregion

        #region RevisionID
        [PXDBInt(IsKey = true)]
        [PXDefault(0)]
        public virtual int? RevisionID { get; set; }
        public abstract class revisionID : PX.Data.BQL.BqlInt.Field<revisionID> { }
        #endregion

        #region AccountID
        [PXDBInt()]
        [PXUIField(DisplayName = "Account")]
        [PXDefault(typeof(Search<BAccount.bAccountID, Where<BAccount.bAccountID,Equal<Current<ProspectiveAccountLocationHistory.accountID>>>>))]
        [PXSelector(typeof(BAccount.bAccountID), DescriptionField =typeof(BAccount.acctName))]
        public virtual int? AccountID { get; set; }
        public abstract class accountID : PX.Data.BQL.BqlInt.Field<accountID> { }
        #endregion

        #region LocationID
        [PXDBInt()]
        [PXUIField(DisplayName = "Location")]
        [PXDefault(typeof(Search<Location.locationID, Where<Location.locationID, Equal<Current<ProspectiveAccountLocationHistory.locationID>>>>))]
        [PXSelector(typeof(Location.locationID), DescriptionField = typeof(Location.locationCD))]
        public virtual int? LocationID { get; set; }
        public abstract class locationID : PX.Data.BQL.BqlInt.Field<locationID> { }
        #endregion

        #region Tstamps
        [PXDBTimestamp()]
        [PXUIField(DisplayName = "Tstamps")]
        public virtual byte[] Tstamp { get; set; }
        public abstract class tstamp : PX.Data.BQL.BqlByteArray.Field<tstamp> { }
        #endregion

        #region CreatedByID
        [PXDBCreatedByID()]
        public virtual Guid? CreatedByID { get; set; }
        public abstract class createdByID : PX.Data.BQL.BqlGuid.Field<createdByID> { }
        #endregion

        #region CreatedByScreenID
        [PXDBCreatedByScreenID()]
        public virtual string CreatedByScreenID { get; set; }
        public abstract class createdByScreenID : PX.Data.BQL.BqlString.Field<createdByScreenID> { }
        #endregion

        #region CreatedDateTime
        [PXDBCreatedDateTime()]
        [PXUIField(DisplayName = "Created Date Time")]
        public virtual DateTime? CreatedDateTime { get; set; }
        public abstract class createdDateTime : PX.Data.BQL.BqlDateTime.Field<createdDateTime> { }
        #endregion

        #region LastModifiedByID
        [PXDBLastModifiedByID()]
        public virtual Guid? LastModifiedByID { get; set; }
        public abstract class lastModifiedByID : PX.Data.BQL.BqlGuid.Field<lastModifiedByID> { }
        #endregion

        #region LastModifiedByScreenID
        [PXDBLastModifiedByScreenID()]
        public virtual string LastModifiedByScreenID { get; set; }
        public abstract class lastModifiedByScreenID : PX.Data.BQL.BqlString.Field<lastModifiedByScreenID> { }
        #endregion

        #region LastModifiedDateTime
        [PXDBLastModifiedDateTime()]
        [PXUIField(DisplayName = "Last Modified Date Time")]
        public virtual DateTime? LastModifiedDateTime { get; set; }
        public abstract class lastModifiedDateTime : PX.Data.BQL.BqlDateTime.Field<lastModifiedDateTime> { }
        #endregion
    }
}

然后我首先使用以下视图为AssetMaint创建了图形扩展。

public PXSelect<ProspectiveAccountLocationHistory, Where<ProspectiveAccountLocationHistory.assetID, Equal<Current<FixedAsset.assetID>>>> ProspectiveAccountLocationHistories;

并添加了一个带有带有DataMember ProspectiveAccountLocationHistories的网格的选项卡。

首先，我尝试覆盖persist方法，因此在下面编写了代码。

[PXOverride]
public void Persist(Action del)
{
    using (var scope = new PXTransactionScope())
    {
        var row = Base.LocationHistory.Current;
        FALocationHistory assetLocation = Base.AssetLocation.Current;
        var assetLocationExt = row.GetExtension<FALocationHistoryExt>();
        var item = new ProspectiveAccountLocationHistory()
        {
            AssetID = Base.Asset.Current.AssetID,
            AccountID = assetLocationExt.UsrLHBusinessAccount,
            LocationID = assetLocationExt.UsrLHBusinessAccountLocation,
            RevisionID = 1
        };
        ProspectiveAccountLocationHistories.Cache.Insert(item);
        ProspectiveAccountLocationHistories.Cache.Persist(PXDBOperation.Insert);
        ProspectiveAccountLocationHistories.Cache.Clear();
        scope.Complete();
    }
    del();
}

但是，我一直收到运行时错误，因此以为我可能在自定义字段更新时尝试将记录保存到View Cache。最终，无论如何执行保存，它将在以后保存在数据库中。因此，我在图形扩展中添加了以下事件。

protected void FALocationHistory_UsrLHBusinessAccountLocation_FieldUpdated(PXCache cache, PXFieldUpdatedEventArgs e)
        {
            try
            {
                var row = (FALocationHistory)e.Row;
                FALocationHistory assetLocation = Base.AssetLocation.Current;
                var assetLocationExt = row.GetExtension<FALocationHistoryExt>();
                var item = new ProspectiveAccountLocationHistory()
                {
                    AccountID = assetLocationExt.UsrLHBusinessAccount,
                    LocationID = assetLocationExt.UsrLHBusinessAccountLocation,
                    RevisionID = 1
                };
                var t = (ProspectiveAccountLocationHistory)cache.Graph.Caches[typeof(ProspectiveAccountLocationHistory)].Insert(item);
            }
            catch (Exception ex)
            {
                PXTrace.WriteError(ex.Message);
            }

        }

但是在那种情况下，我也会遇到以下相同的运行时错误。

我也检查了其他图形的源代码，并且似乎可以在Field Updated事件中更新缓存。但是，它不起作用。该视图也尽可能简单。我很难找到我在这里缺少的东西。

在udpated字段上插入DAC以查看缓存

0 个答案: