Which trigger to use for this?

Question

Hello,
I have this code here that should stop the user from creating a new record (therefore not adding it to the tree) if the value of sublevel = 0.
I dont know which trigger I can use to make this kind of validation.
declare
v_group_code varchar(12);     
var number;
begin
v_group_code:= ftree.get_tree_node_property('CONTROL.GROUP_TREE',nvl(:SYSTEM.TRIGGER_NODE,1),FTREE.NODE_VALUE);
:parameter.grup_cd_selected     :=  v_group_code;
select SUB_LEVEL
into var
from pyr_group
where code = v_group_code;
if var = 0 then
          message('You cannot create group here.');
          message('You cannot create group here.');
          RAISE form_trigger_failure;
end if;
end;Thank you

Answer 1

Hi
This code here that should stop the user from creating a new record (therefore not adding it to the tree) if the value of sublevel = 0.Pls try to use WHEN-CREATE-RECORD Trigger
Hope this helps...
Regards,
Abdetu...