APRegisterExt not saving data on APInvoiceEntry - acumatica

Question

Build 18.203.0006
Page: AP301000
Good day, I have extended the APRegister Class by adding 2 new checkbox fields. I want to iterate through al the APTran transactions and look for suIDs that start with FBL and GAS. If I find them the new tick boxes should tick.
Currently, the fields(tick boxes) do not save to the database. I am not sure how to tell Acumatica the APRegisterExt has updated.
APInvoiceEntry_Extension:
namespace PX.Objects.AP
{
public class APRegisterExt : PXCacheExtension<PX.Objects.AP.APRegister>
{
#region UsrGroupAEmail
[PXDBBool]
[PXUIField(DisplayName="GroupA Email")]
public virtual bool? UsrGroupAEmail { get; set; }
public abstract class usrGroupAEmail : IBqlField { }
#endregion
#region UsrGroupBEmail
[PXDBBool]
[PXUIField(DisplayName="GroupB Email")]
public virtual bool? UsrGroupBEmail { get; set; }
public abstract class usrGroupBEmail : IBqlField { }
#endregion
}
}
APInvoiceEntry_Extension:
namespace PX.Objects.AP
{
public class APInvoiceEntry_Extension : PXGraphExtension<APInvoiceEntry>
{
#region Event Handlers
protected void APInvoice_RowSelected(PXCache cache, PXRowSelectedEventArgs e)
{
APInvoice invoice = e.Row as APInvoice;
if (invoice == null) return;
var apRX = invoice.GetExtension<APRegisterExt>();
PXResultset<APTran> Tlist = PXSelectJoin<APTran,
LeftJoin<POReceiptLine,
On<POReceiptLine.receiptNbr, Equal<APTran.receiptNbr>,
And<POReceiptLine.lineNbr, Equal<APTran.receiptLineNbr>>>>,
Where<
APTran.tranType, Equal<Current<APInvoice.docType>>,
And<APTran.refNbr, Equal<Current<APInvoice.refNbr>>>>,
OrderBy<
Asc<APTran.tranType,
Asc<APTran.refNbr,
Asc<APTran.lineNbr>>>>>.Select(Base);
apRX.UsrGroupBEmail = false;
apRX.UsrGroupAEmail = false;
foreach (APTran item in Tlist)
{
if (item.SubID.Value.ToString().StartsWith("FBL") || item.SubID.Value.ToString().StartsWith("GAS"))
{
apRX.UsrGroupBEmail = true;
cache.SetValue<APRegisterExt.usrGroupBEmail>(e.Row, true);
}
else
{
apRX.UsrGroupAEmail = true;
}
}
}
#endregion
}
}
Can someone please show me the correct way of saving the data to the new tick boxes so that cache updates.

Answer 1

Consider moving the logic to APRegister_RowPersisting.
Importantly, APTran.subID is an Int dataType.
Read instead the Sub table/DAC during a For Loop of
Base.Transactions.Select() to detect SubCD startsWith FBL or GAS.
foreach(APTran item in Base.Transaction.Select())
{
Sub sub = PXSelect<Sub,
Where<Sub.subID, Equal<Required<Sub.subID>>>>
.Select(graph, item.SubID);
if (item.SubCD.StartsWith("FBL") ||
item.SubCD.StartsWith("GAS"))
{
apRX.UsrGroupBEmail = true;
}
else
{
apRX.UsrGroupAEmail = true;
}
}
To be complete, you may also need to reset both flags during APTran_SubID_FieldUpdated regardless of the changed value:
protected void APTran_SubID_FieldUpdated(PXCache sender,
PXFieldUpdatedEventArgs e, PXFieldUpdated del)
{
del?.Invoke(sender,e);
var apRX = Base.Document.Current.GetExtension<APRegisterExt>();
apRX.UsrGroupBEmail = false;
apRX.UsrGroupAEmail = false;
}