Function does not return a value

Question

CREATE OR REPLACE PACKAGE BODY Promo_Version_Logo_Pkg IS
  FUNCTION Promo_Version_Logo_Rule(Rc IN test.Ot_Rule_Context)
    RETURN Ot_Rule_Activation_Result
   IS
    PRAGMA AUTONOMOUS_TRANSACTION;
    v_Result NUMBER;
    CURSOR Cur_Promo_Logos IS
      SELECT Pvlo.Promo_Id,
             Evt.On_Date,
             Evt.Channel_Id,
             Evt.Start_Time,
             Evt.Duration,
             Pvlo.Logo_Id
        FROM Event                  Evt,
             Event_Technical_Data   Etd,
             Promo_Version_Logo_Opt Pvlo,
             Promo_Timing           Pt
       WHERE Evt.Event_Technical_Data_Id = Etd.Event_Technical_Data_Id
             AND Etd.Promo_Timing_Id = Pt.Promo_Timing_Id
             AND Pt.Promo_Timing_Id = Pvlo.Promo_Timing_Id
             AND Evt.Channel_Id = Rc.Channelid
             AND Evt.On_Date >= Rc.Fromdate
             AND Evt.On_Date <= Rc.Todate
             AND Evt.Day_Type_Id = Rc.Daytype;
  BEGIN
    FOR Each_Record IN Cur_Promo_Logos LOOP
      v_Result := Testing_Pkg.Insert_Event(v_Channel_Id   => Each_Record.Channel_Id,
                                                       v_Tx_Time      => Each_Record.Start_Time,
                                                       v_Tx_Date      => Each_Record.On_Date,
                                                       v_Content_Id   => Each_Record.Logo_Id,
                                                       v_Duration     => Each_Record.Duration,
                                                       v_Event_Type   => Uktv_Tools_Pkg.c_Logo_Kind_Code,
                                                       v_Container_Id => Each_Record.Promo_Id);
      IF v_Result = -1
      THEN
        EXIT;
      END IF;
    END LOOP;
  END Promo_Version_Logo_Rule;
END Promo_Version_Logo_Pkg;why do I get this "Hint: Function 'Promo_Version_Logo_Rule' does not return a value" after I compile it? The Testing_Pkg.Insert_Event should insert some values somewhere...I just want to try to test it before I move on onto the next bit of it, but I do not understand what I am doing wrong...
Thanks

Answer 1

You need something like:
    END LOOP;
    RETURN v_Result;  -- if this is what you are trying to get the function to do
    EXCEPTION
      WHEN OTHERS THEN
      <exception handling/logging - whatever you want>
      RAISE;  --this with then raise an error back to the calling process
  END Promo_Version_Logo_Rule;This way the function either returns a value, or an exception which can be handled in the calling procedure