Check Microsoft Access Form Values before Save - ms-access

Question

I have an Access Form - lets call it "Add Labor" (Access 2007) that saves data into a table.
The table has two columns in particular called "Start Date" and "End Date" (This table stores tasks)
There is also another table called FiscalYears which includes Start and End Dates for Fiscal Years, which is structured as follows
FyID
FYear
StartDate
EndDate
Example Data:
FYId FYear StartDate EndDate
-----------------------------
1 2010 10/1/2009 9/30/2010
2 2011 10/1/2010 9/30/2011
So in My Add Labor Form if someone enters labor that span across two fiscal years I need to enter two labor entries. Here is an example
If a user selects Labor Start Date = 6/30/2009
And End Date 10/2/2010 , it spans two fiscal years
So in my Labor Table I should enter two things
LaborID StartDate EndDate
-----------------------------
1 6/30/2009 9/30/2010
2 10/1/2010 10/2/2010
Basically I need to do a check before I save the record and add two records if they span Fiscal years, right now I'm just blindly doing Save Record on the form (inbuilt), but I guess I need to add some VBA. I've hardly ever used Access so this may be simple(hopefully). I am thinking instead of the event which just calls Save Record, I need it to add custom VBA.

Answer 1

Say you have an unbound form for adding the dates, you can say:
Dim rsFY As DAO.Recordset
Dim rsAL As DAO.Recordset
Dim db As Database
Dim sSQL As String
Set db = CurrentDb
''Select all years from the fiscal years table
sSQL = "SELECT FYear, StartDate, EndDate " _
& "FROM FiscalYears WHERE StartDate>=#" & Format(Me.StartDate, "yyyy/mm/dd") _
& "# Or EndDate <=#" & Format(Me.Enddate, "yyyy/mm/dd") _
& "# ORDER BY FYear"
Set rsFY = db.OpenRecordset(sSQL)
Set rsAL = db.OpenRecordset("AddLabor") ''table
''Populate recordset
rsFY.MoveLast
rsFY.MoveFirst
Do While Not rsFY.EOF
''Add records for each year selected
rsAL.AddNew
If rsFY.AbsolutePosition = 0 Then
rsAL!StartDate = Format(Me.StartDate, "yyyy/mm/dd")
Else
rsAL!StartDate = rsFY!StartDate
End If
If rsFY.AbsolutePosition + 1 = rsFY.RecordCount Then
rsAL!Enddate = Format(Me.Enddate, "yyyy/mm/dd")
Else
rsAL!Enddate = rsFY!Enddate
End If
rsAL.Update
rsFY.MoveNext
Loop
If the code was running in a main form with a subform showing the Addlabor table, you could update the subform to show the new records like so:
Me.Addlabor_subform.Requery

Answer 2

Why do you need a FiscalYears table? If your organization's fiscal years always start on Oct. 1 and end on Sept. 30, you can use a function to determine the fiscal year for a given date.
Public Function Fy(ByVal pDate As Date) As Integer
Dim intYear As Integer
Dim intReturn As Integer
intYear = Year(pDate)
If pDate > DateSerial(intYear, 9, 30) Then
intReturn = intYear + 1
Else
intReturn = intYear
End If
Fy = intReturn
End Function
And simple functions to return the Start and End dates for a given year.
Public Function FyStart(ByVal pYear As Integer) As Date
FyStart = DateSerial(pYear - 1, 10, 1)
End Function
Public Function FyEnd(ByVal pYear As Integer) As Date
FyEnd = DateSerial(pYear, 9, 30)
End Function
You can then determine how many fiscal years are included in a given date range by:
Fy(EndDate) - Fy(StartDate)
But I may be totally off base because you said "Start Date = 6/30/2009 And End Date 10/2/2010" spans two years. However, this expression returns 2 (3 years):
Fy(#10/2/2010#) - Fy(#6/30/2009#)