Or you can create a constrains at backend level specifying that both fields
as to be unique.
The drawback is that you will get web2py ticket in case the insert fails...
Something like :
CREATE TABLE example (
a integer,
b integer,
c integer,
*UNIQUE (a, c)*
);
ALTER TABLE tablename ADD CONSTRAINT constraintname UNIQUE (c1, c2);
On Tue, Nov 29, 2016 at 11:05 AM, Anthony <[email protected]> wrote:
> On Tuesday, November 29, 2016 at 11:00:06 AM UTC-5, Annet wrote:
>>
>> I wonder whether there is a validator on auth_membership user_id and
>> group_id
>>
>> I found that I can add the same membership multiple times which is not
>> what I want.
>>
>
> There are no validators that prevent duplicates, but if you use
> auth.add_membership, it does prevent duplicates.
>
> Anthony
>
> --
> Resources:
> - http://web2py.com
> - http://web2py.com/book (Documentation)
> - http://github.com/web2py/web2py (Source code)
> - https://code.google.com/p/web2py/issues/list (Report Issues)
> ---
> You received this message because you are subscribed to the Google Groups
> "web2py-users" group.
> To unsubscribe from this group and stop receiving emails from it, send an
> email to [email protected].
> For more options, visit https://groups.google.com/d/optout.
>
--
Resources:
- http://web2py.com
- http://web2py.com/book (Documentation)
- http://github.com/web2py/web2py (Source code)
- https://code.google.com/p/web2py/issues/list (Report Issues)
---
You received this message because you are subscribed to the Google Groups
"web2py-users" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
For more options, visit https://groups.google.com/d/optout.
