Subject RE: Re[2]: [IBO] problem with permissions
Author Alan McDonald
> Hello Helen,
> At 27.04.2005 14:27, you wrote:
> > At 01:46 PM 27/04/2005 +0600, you wrote:
> >>Hi All,
> >>
> >>I have users with read only permission on some tables by PUBLIC user.
> >>
> >>And I have users with full access to table.
> >>(OPERATORS is a role)
> >>
> >>When read-only user execute statement for example "select
> >>from any database tool it's ok! Whey allow him to select records from
> >>the table and just disallow to edit or insert the table.
> >>
> >>With IBO I found little problem.
> >>Wnen statement "select MYTABLE_ID from MYTABLE" assigned to IB_Query
> >>and EditSQL property present with my custom update statement
> >>i recieve "no permission for update/write access to column MYTABLE_ID"
> >>on IB_Query.Open.
> >>No one try to edit any records.
> >>When I clear EditSQL before IB_Query.Open it's work fine.
> >>RequestLive, ReadOnly and PreventEditing properties can't help in this
> >>case.
> >>
> >>I understand I, can leave out what problem by clearing EditSQL property
> >>in all my IB_Queries when user role is not OPERATORS.
> >>But I think it isn't best way.
> >>
> >>Please consider this strange behavior.
> > It is not strange behaviour at all. By making a dataset "live" you are
> > telling the system that the logged-in user is to have the
> rights to write
> > to the table. IBO correctly refuses to allow the non-privileged user to
> > access the set as a live set.
> > You can safely put your custom EditSQL, InsertSQL and DeleteSQL
> back. What
> > you should do instead is to check the user privileges at
> connect time and
> > set a flag indicating whether the role has the needed
> privileges. When the
> > dataset is created, check this flag and set RequestLive accordingly. If
> > RequestLive is False, the I/U/D buttons on the UpdateBar will
> be disabled
> > automatically.
> > Helen
> I wrote:
> "RequestLive, ReadOnly and PreventEditing properties can't help
> in this case."
> RequestLive is False
> ReadOnly is True
> PreventEditing is True
> Any values combination all of them gives error, if assigned
> EditSQL and user
> don't has permission.
> What's the problem!
> Anyway, let suppose what user has permission to delete records
> but hasn't permission to edit them.
> RequestLive I MUST set to True.
> Why I get "no permission for update/write access to column ......"
> error when I even don't dare to edit something.
> Ramil

Yes - I know this issue well. You have to clear the custom update SQL. IBO
tries to prepare the statements even when requestlive of false.. Clear them
and it's fine