Re: Call a Normal function inside a Trigger Function

On 4/16/23 11:47, FOUTE K. Jaurès wrote:
> Can I have an example please? Or a link

create table trg_test (id integer, fld_1 varchar, fld_2 boolean);


CREATE OR REPLACE FUNCTION public.child_fnc(token character varying)
  RETURNS void
  LANGUAGE plpgsql
AS $function$
     BEGIN
         IF token = 'yes' THEN
             RAISE NOTICE 'Child';
         END IF;
     END;
$function$
;


CREATE OR REPLACE FUNCTION public.parent_fnc()
  RETURNS trigger
  LANGUAGE plpgsql
AS $function$
     BEGIN
         RAISE NOTICE 'Id is %', NEW.id;
         RAISE NOTICE 'Fld_1 is %', NEW.fld_1;
         RAISE NOTICE 'Parent';
         PERFORM child_fnc('yes');
     RETURN NEW;
     END;
$function$
;

create trigger test_trg before insert on trg_test for each row execute 
function parent_fnc();

insert into trg_test values (1, 'dog', 'f');
NOTICE:  Id is 1
NOTICE:  Fld_1 is dog
NOTICE:  Parent
NOTICE:  Child
INSERT 0 1

> 
> On Sun, 16 Apr 2023, 17:08 Pavel Stehule, <pavel.stehule@gmail.com 
> <mailto:pavel.stehule@gmail.com>> wrote:
> 
>     Hi
> 
> 
>     ne 16. 4. 2023 v 16:15 odesílatel FOUTE K. Jaurès
>     <jauresfoute@gmail.com <mailto:jauresfoute@gmail.com>> napsal:
> 
>         Hello,
> 
>         Is it possible to call a function inside a trigger function ?
>         Any idea or link are welcome. Thanks in advance
> 
> 
>     sure, there is not any limit.
> 
>     Regards
> 
>     Pavel
> 
> 
>         Best Regards
>         -- 
>         Jaurès FOUTE
> 

-- 
Adrian Klaver
adrian.klaver@aklaver.com