Form access

Question

Hey guys, Sorry for another newbie question but I have been trying to make a form that will give the user the choice of which other forms they want to view but will also allow them ot select if they want to just have a mode where they can query the data or a password protected mode where they can update, insert etc.
However after many attempts using triggers i'm stuck on how to restrict the data in this way. Any suggestions? Thanks.

Answer 1

You can achieve this easily in the database itself. Depending on the user role, you are granted select or update privileges on certain tables.
You can of course create your own security mechanism in your application, but it is not something to explain in a few words in a forum. This gives you an idea:
if user_update_allowed then
  Set_Block_Property(blk_id,INSERT_ALLOWED,PROPERTY_TRUE);
  Set_Block_Property(blk_id,UPDATE_ALLOWED,PROPERTY_TRUE);
  Set_Block_Property(blk_id,DELETE_ALLOWED,PROPERTY_TRUE);
else
  Set_Block_Property(blk_id,INSERT_ALLOWED,PROPERTY_FALSE);
  Set_Block_Property(blk_id,UPDATE_ALLOWED,PROPERTY_FALSE);
  Set_Block_Property(blk_id,DELETE_ALLOWED,PROPERTY_FALSE);
end if;