Reuse of existing packages for saving data?

Question

Hi,
I'm pretty new to APEX so I lack the in-depth know-how how to do certain tasks.
We want to build a simple management application for a customer and reuse as much code as possible to keep the price low. For example, there are procedures in packages which do certain business logic and we don't want (and can't do this) to copy and/or modify all this stuff to fit in APEX. This packages accept some IN-parameters and have some OUT-parameters which indicate if the action was successfull or not.
So lets say we have a (dummy-)procedure
pkg_handleData.p_saveData
with following parameters
- inParam1 IN varchar2,
- outParam1 OUT pls_integer
We want to call this packageprocedure after submitting a form (inParam1 => content of a specific formfield) and we want to define our next step after looking at outParam1.
Is there a way to handle this with APEX - and if yes, how? Is there a tutorial out there which describes "advanced" stuff like this? All I found were basic tutorials for people who just want to view/alter data of a table or forms which rely on procedures (but not packageprocedures).
(After working with APEX for some few days now I have to say APEX is somewhat mighty, I really doubt this isn't possible. :))

Answer 1

You can use conditional branching (PL/SQL Function Returning a boolean), but you have to 'wrap' your existing procedures into a function to use that.
Example:
Funtion p_savedata( inparam ) returning boolean
is
p_out pls_integer;
begin
pkg_handledata( inparam, p_out);
return (p_out > 0);
end;