Where to find the validation for table

Question

Hi Friends,
I'm new to HRMS. This is my senario. USers entering the Leave. When entering the leave, it is validating the leave days , and throws error. If they entering for the same person, same from date and same to date, it will show error that *'Record already exist'*. Otherwise , it will accept the new records. My situation is, if the person applied for 5 days. but he returned back into 4 days. So, when they tried to update those records also , it showing same error, *'Record already exist'*.
These validation they have done in fast formula..
IF(PFC_IN_CHECK_ABSENCE_OVERLAP(ASG_NUMBER,date_start,date_end)<>0) THEN
duration='FAILED'
invalid_msg='Your absence days are overlapping with an existing absence'
Procedure called in Fast Formula,
FUNCTION pfc_in_check_absence_overlap (p_employee_number VARCHAR2, p_start_date DATE, p_end_date DATE)
RETURN NUMBER
IS
CURSOR c_count
IS
SELECT 1
FROM per_absence_attendances absence,
per_absence_attendance_types absence_types,
per_all_people_f person
WHERE person.person_id = absence.person_id
AND absence.absence_attendance_type_id = absence_types.absence_attendance_type_id
AND TRUNC (SYSDATE) BETWEEN person.effective_start_date AND person.effective_end_date
AND person.employee_number = p_employee_number
AND ( (p_start_date BETWEEN absence.date_start AND absence.date_end)
OR (p_end_date BETWEEN absence.date_start AND absence.date_end)
l_count NUMBER := 0;
l_dummy c_count%ROWTYPE;
BEGIN
OPEN c_count;
FETCH c_count
INTO l_dummy;
IF c_count%FOUND
THEN
l_count := l_count + 1;
ELSE
l_count := 0;
END IF;
CLOSE c_count;
RETURN l_count;
END;
I need to change that, it should permit to update the records. Please let me know, how to do that, where to change and where to check.
Pl. help. This is little bit urgent.
Thanks in ADvance.
Mano

Answer 1

Can I confirm I understand your requirement correctly. Is this right:
* You have overlapping absence validation at the moment
* This errors whenever you try and create/update an absence where any day of this absence overlaps with an existing absence (ie, it starts between an existing absence, or ends between an existing absence)
* The problem with this validation in the case of update is that its validating against itself
Is that right?
If so, what you'd usually do in this case is get the cursor to ignore the absence being updated. For example:
FUNCTION pfc_in_check_absence_overlap (p_employee_number VARCHAR2, p_start_date DATE, p_end_date DATE, p_absence_attendance_id number default null)
RETURN NUMBER
IS
CURSOR c_count
IS
SELECT 1
FROM per_absence_attendances absence,
per_absence_attendance_types absence_types,
per_all_people_f person
WHERE person.person_id = absence.person_id
AND absence.absence_attendance_type_id = absence_types.absence_attendance_type_id
AND absence.absence_attendance_id <> nvl(p_absence_attendance_id, -1)
AND TRUNC (SYSDATE) BETWEEN person.effective_start_date AND person.effective_end_date
AND person.employee_number = p_employee_number
AND ( (p_start_date BETWEEN absence.date_start AND absence.date_end)
OR (p_end_date BETWEEN absence.date_start AND absence.date_end)
However, the problem here is getting hold of the absence_attendance_id. This isn't available to the Fast Formula, although I think if you're on release 12.1.3 it might be.
So with your current solution there's no way of getting the cursor to ignore the absence being updated. An alternative solution would be to implement this logic in API User Hooks on create_person_absence and update_person_absence. These hooks can pass in p_absence_attendance_id, which means you can then stop it erroring on itself.
If you moved to API User Hooks could you keep the same PLSQL as above (the version I modified). For more details on implement API User Hooks please see:
Understanding and Using Application Program Interface (API) User Hooks in Oracle HRMS [ID 73170.1]