Use of application Item with conditional validation

Question

Apex 3.2
On a form, I have two lists :
- Items TYPE contains A B C and D.
- Item MANAGEMENT contains NULL, 1, 2 and 3.
I want to validate that MANAGEMENT is not null only when the value in TYPE are A, B or C.
I am using the condition "Value of Item in Expression 1 Is Contained within Colon Delimited List in Expression 2"
I dont want to hard code these values (A B C) so I put them in an Application Item (I also need them somewhere else).
If I use my application Item in the condition, the validation is not performed (I dont see it listed in debug mode.). If I use the real values (A B C), its working.
Here's what I put in the Exp2 when using the application item :
F126_CONST_BUSINESS_CASE:F126_CONST_PROJ_NON_PLANIFIE:F126_CONST_PROJ_PLANIFIE
I also tried with the form v('F126_CONST_BUSINESS_CASE'): ...
Any Idea ?
Thanks in advance.

Answer 1

Hi Amelie,
You should consider centralizing your validations inside a package. It will make your code much more readable. In many cases, you won't have to modify your application to modify a validation.
If your validations are required across different pages, consider having a main package or build package a package for each module (page or page groups).
The following condition for a validation is easier to understand than "Value of Item in Expression 1 Is Contained within Colon Delimited List in Expression 2".
Condition Type PL/SQL Expression:
p1_valdt_pkg.is_item_mangm_mandt(:P1_ITEM_TYPE,:P1_ITEM_MANAGEMENT)
create or replace function is_item_mangm_mandt (pva_item_type in varchar2,
pva_item_mangm in varchar2)
return boolean is
vbo_valdt boolean default true;
vva_const_business_case varchar2 (30) default v ('F126_CONST_BUSINESS_CASE');
vva_const_proj_non_planifie varchar2 (30) default v ('F126_CONST_PROJ_NON_PLANIFIE');
vva_const_proj_planifie varchar2 (30) default v ('F126_CONST_PROJ_PLANIFIE');
begin
if pva_item_mangm is null
and pva_item_type in (vva_const_business_case, vva_const_proj_non_planifie, vva_const_proj_planifie) then
vbo_valdt := false;
end if;
return vbo_valdt;
exception
when others then
return false;
end;
Louis-Guillaume Carrier-Bédard
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