A/P Invoice and BaseRef(Purchase Order) as parameter of function

Question

Every time i add row in A/P Invoice need to fire some function using formatted search where one of the parameter is BaseRef(DocNum) of the Purchase Order. So lets say formatted search is connected with Price and looks like this: SELECT dbo.example("BaseRef(DocNum) of Purchase Order")
Which variable is responsible for store Baseref - DocNum of Purchase Order?

Answer 1

Hi Przemek,
Do you mean you wish to retrieve the purchase order number for each line in the purchase invoice ?
The baseref column in the A/P invoice lines refers to the docnum of the base document (baseentry refers to the docentry of the base document), which can be either a goods receipt document or a purchase order document. The basetype document specifies the type of the document in which the baseentry and baseref columns refer to.
There are several ways you could solve this problem, but here's one solution you might want to try:
= = = Formatted search query that calls a user function in  MS SQL Server = = =
select dbo.getOrderNumForPurchaseInvoiceRow($[PCH1.BaseEntry],$[PCH1.BaseLine],$[PCH1.BaseType])
= = = Three user functions that have to be created in MS SQL Server = = =
create function getGoodsReceiptBaseRef(@DocEntry int, @LineNum int)
returns int
as
begin
  return(select baseref from pdn1 where docentry=@DocEntry and linenum=@LineNum)
end
go
create function getPurchaseOrderNum(@docentry int)
returns int
as
begin
  return(select docnum from opor where docentry=@docentry)
end
go
create function getOrderNumForPurchaseInvoiceRow(@baseentry int, @baseline int, @basetype int)
Returns int
as
begin
  declare @result int,
  @baseref int
  /* If basetype is not goods receipt or order, simply return null*/
  if(@basetype not in(20, 22))
    begin
      set @result=null
    end
  else
    begin   
      /* base document is goods receipt */
      if(@basetype=20)
        begin
          /* Retrieve the base reference number of the goods receipt */
          set @result=dbo.getGoodsReceiptBaseRef(@baseentry,@baseline)
        end
      else
        /* Base document is purchase order - simply return the baseref of the invoice itself */
        begin
          set @result=dbo.getPurchaseOrderNum(@baseentry)
        end
    end   
  return @result
end