Dyanmic actions causing recursion issue

Question

Hi all,
I've got two dynamic actions on two date fields (start/end). The dynamic actions are SQL functions that ultimately change the end date, if the start date is after the end date, and the start date if the end date is before the start date.
My issue now is that the dynamic actions are fired on item change. When one of the dates is changed, it triggers the other dynamic action...and the loop begins.
Here's the code for the start date action (reversed fields for end date):
DECLARE
  v_start_date DATE := to_date(:P1_START_DATE, 'dd-Mon-yy');
  v_end_date DATE   := to_date(:P1_END_DATE, 'dd-Mon-yy');
BEGIN
  IF v_start_date > v_end_date THEN
    RETURN TO_CHAR(v_start_date,'dd-Mon-YY');
  END IF;
    RETURN TO_char(v_end_date, 'dd-Mon-YY');
END;I know the issue lies with the last return, as this is executing every time the action is fired. Although when I remove that return statement, I get a ajax/server error "invalid month for set value" (or something like that).
Any ideas on how to stop this from happening?

Answer 1

Hi djston,
You can get around this by using a 'proxy' hidden field that holds the value set by the 'Set Value' action, then adding another action that copies that value over to your date items (without causing recursion). I described this technique in my response to a similar thread, Re: Dynamic Action infinite loop.
Hope it helps.
Anthony.