Audit Trail for unbound forms/textboxes - ms-access

Question

I have been searching for days for ways on how to implement an audit trail in my access 2010 database. There are plenty of solutions out there that work great when the form is bound, but I have several forms that are unbound and perform certain critical functions I wish to have an audit trail on (they are unbound due to having to edit different tables depending on user input, functions performed through VB and SQL scripting, so binding them to a table would not work). But there seems to be no easy solutions on this type of auditing without doing weeks and weeks worth of custom coding. Does anyone have any ideas on how to do this? Is there a way to audit all activity without having to bind a form? Can't I just have code that monitors a table's changes without having to go though code on the back side of the forms?

Answer 1

I have recently done this!
Each form has code to write changes to a table.
The Audit Trail gets a bit tricky when you lose Screen.ActiveForm.Controls as the reference - which happens if you use a Navigation Form.
It is also using Sharepoint lists so I found that none of the published methods were available.
I (often) use a form in the middle as a display layer and I find it has to fire the Form_Load code in the next forms down the line as well.
Once they are open they need to be self sustaining.
Module Variable;
Dim Deleted() As Variant
Private Sub Form_BeforeUpdate(Cancel As Integer)
'Audit Trail - New Record, Edit Record
Dim rst As Recordset
Dim ctl As Control
Dim strSql As String
Dim strTbl As String
Dim strSub As String
strSub = Me.Caption & " - BeforeUpdate"
If TempVars.Item("AppErrOn") Then
On Error Resume Next 'On Error GoTo Err_Handler
Else
On Error GoTo 0
End If
strTbl = "tbl" & TrimL(Me.Caption, 6)
strSql = "SELECT * FROM tblzzAuditTrail WHERE DateTimeMS = #" & GetTimeUTC & "#;"
Set rst = dbLocal.OpenRecordset(strSql)
For Each ctl In Me.Detail.Controls
If ctl.ControlType = acTextBox Or ctl.ControlType = acComboBox Then
If ctl.Name <> "DateUpdated" Then
If Nz(ctl.Value) <> Nz(ctl.OldValue) Then
If Me.NewRecord Then
With rst
.AddNew
!DateTimeMS = GetTimeUTC()
!UserID = TempVars.Item("CurrentUserID")
!ClientID = TempVars.Item("frmClientOpenID")
!RecordID = Me.Text26
!ActionID = 1
!TableName = strTbl
!FieldName = ctl.ControlSource
!NewValue = ctl.Value
.Update
End With
Else
With rst
.AddNew
!DateTimeMS = GetTimeUTC()
!UserID = TempVars.Item("CurrentUserID")
!ClientID = TempVars.Item("frmClientOpenID")
!RecordID = Me.Text26
!ActionID = 2
!TableName = strTbl
!FieldName = ctl.ControlSource
!NewValue = ctl.Value
!OldValue = ctl.OldValue
.Update
End With
End If
End If
End If
End If
Next ctl
rst.Close
Set rst = Nothing
Exit Sub
Err_Handler:
Select Case Err.Number
Case 3265
Resume Next 'Item not found in recordset
Case Else
'Unexpected Error
MsgBox "The following error has occurred" & vbCrLf & vbCrLf & "Error Number: " & _
Err.Number & vbCrLf & "Error Source: " & strSub & vbCrLf & "Error Description: " & _
Err.Description, vbExclamation, "An Error has Occured!"
End Select
rst.Close
Set rst = Nothing
End Sub
Private Sub Form_Delete(Cancel As Integer)
Dim ctl As Control
Dim i As Integer
Dim strTbl As String
strTbl = "tbl" & TrimL(Me.Caption, 6)
ReDim Deleted(3, 1)
For Each ctl In Me.Detail.Controls
If ctl.ControlType <> acLabel Then
' Debug.Print .Name
If ctl.Name <> "State" And ctl.Name <> "Pcode" Then
If Nz(ctl.Value) <> "" Then
Deleted(0, i) = ctl.ControlSource
Deleted(1, i) = ctl.Value
Deleted(2, i) = Me.Text26
' Debug.Print Deleted(0, i) & ", " & Deleted(1, i)
i = i + 1
ReDim Preserve Deleted(3, i)
End If
End If
End If
Next ctl
End Sub
Private Sub Form_AfterDelConfirm(Status As Integer)
Dim rst As Recordset
Dim ctl As Control
Dim strSql As String
Dim strTbl As String
Dim i As Integer
Dim strSub As String
strSub = Me.Caption & " - AfterDelConfirm"
If TempVars.Item("AppErrOn") Then
On Error Resume Next 'On Error GoTo Err_Handler
Else
On Error GoTo 0
End If
strTbl = "tbl" & TrimL(Me.Caption, 6)
strSql = "SELECT * FROM tblzzAuditTrail WHERE DateTimeMS = #" & GetTimeUTC() & "#;"
Set rst = dbLocal.OpenRecordset(strSql)
'Audit Trail - Deleted Record
If Status = acDeleteOK Then
For i = 0 To UBound(Deleted, 2) - 1
With rst
.AddNew
!DateTimeMS = GetTimeUTC()
!UserID = TempVars.Item("CurrentUserID")
!ClientID = TempVars.Item("frmClientOpenID")
!RecordID = Deleted(2, i)
!ActionID = 3
!TableName = strTbl
!FieldName = Deleted(0, i)
!NewValue = Deleted(1, i)
.Update
End With
Next i
End If
rst.Close
Set rst = Nothing
Exit Sub
Err_Handler:
Select Case Err.Number
Case 3265
Resume Next 'Item not found in recordset
Case Else
'Unexpected Error
MsgBox "The following error has occurred" & vbCrLf & vbCrLf & "Error Number: " & _
Err.Number & vbCrLf & "Error Source: " & strSub & vbCrLf & "Error Description: " & _
Err.Description, vbExclamation, "An Error has Occured!"
End Select
rst.Close
Set rst = Nothing
End Sub