How to override a protected method using PXProtectedAccess? - acumatica

Question

I need to override the Service Contract Schedule's Next Execution Date when a Service Order is generated. This automatically calculated depending on the occurrence setup. The calculation doesn't fit my requirements though so I need to override it.
Looking at the source I found the method that I need to override. Its protected unfortunately.
I found this gem but I'm not getting such luck. Not sure what am I missing here ? My code as follows :
[PXProtectedAccess]
public abstract class ServiceContractInqExt1 : PXGraphExtension<ServiceContractInq>
{
[PXProtectedAccess]
protected abstract void UpdateGeneratedSchedule(int scheduleID, DateTime? toDate, DateTime? lastGeneratedElementDate, FSSchedule fsScheduleRow);
}
public class ServiceContractInqExt2: PXGraphExtension<ServiceContractInqExt1,ServiceContractInq>
{
#region Event Handlers
public static bool IsActive()
{
return true;
}
public delegate void UpdateGeneratedScheduleDelegate(int scheduleID, DateTime? toDate, DateTime? lastGeneratedElementDate, FSSchedule fsScheduleRow);
[PXOverride]
public virtual void UpdateGeneratedSchedule(int scheduleID, DateTime? toDate, DateTime? lastGeneratedElementDate, FSSchedule fsScheduleRow,UpdateGeneratedScheduleDelegate baseMethod)
{
PXTrace.WriteInformation("HIT !");//this is not firing !
baseMethod(scheduleID, toDate, lastGeneratedElementDate, fsScheduleRow);
}
#endregion
}
EDIT :
Following the answer below.
using PX.Data;
using PX.Objects.CR;
using PX.Objects.CS;
using PX.Objects.FS.Scheduler;
using PX.SM;
using System;
using System.Collections;
using System.Collections.Generic;
using PX.Objects.AR;
using PX.Objects;
using PX.Objects.FS;
namespace PX.Objects.FS
{
[PXProtectedAccess]
public abstract class AAServiceContractInqExtension : PXGraphExtension<ServiceContractInq>
{
[PXProtectedAccess]
protected void UpdateGeneratedSchedule(int scheduleID, DateTime? toDate, DateTime? lastGeneratedElementDate, FSSchedule fsScheduleRow)
{
PXTrace.WriteInformation("HIT");
}
}
}
And simply loading the page is raising an error.
My Acumatica build/version

Answer 1

Unfortunately you will be unable to override the method UpdateGeneratedSchedule due to the fact that it is not marked as virtual so even with access to the ContractGenerationEnqBase graph we cannot modify its functionality.
With that in mind I successfully implemented the following solution
public class ServiceContractInqExtension : PXGraphExtension<ServiceContractInq>
{
public delegate void ProcessServiceContractDelegate(PXCache cache, FSContractSchedule fsScheduleRow, DateTime? fromDate, DateTime? toDate);
[PXOverride]
public virtual void processServiceContract(PXCache cache, FSContractSchedule fsScheduleRow, DateTime? fromDate, DateTime? toDate, ProcessServiceContractDelegate del)
{
del?.Invoke(cache, fsScheduleRow, fromDate, toDate);
UpdateGeneratedSchedule(fsScheduleRow.ScheduleID, new DateTime(2023, 3, 11));
}
protected void UpdateGeneratedSchedule(int? scheduleID, DateTime nextExecutionDate)
{
PXUpdate<Set<FSSchedule.nextExecutionDate, Required<FSSchedule.nextExecutionDate>>, FSSchedule,
Where<
FSSchedule.scheduleID, Equal<Required<FSSchedule.scheduleID>>>>
.Update(Base, nextExecutionDate, scheduleID);
}
}
Once the processing method has been completed the custom UpdateGeneratedSchedule will utilize PXUpdate to set the desired field value. PXUpdate being the same call used by the method you originally wanted to override.
Here we can see one of the schedules before processing
After our custom code has been called we can see that the 'Next Execution Date' is the value provided to our custom method.