I have not explained very well, I will not prevent the value of a and
b are equal, I want to avoid the insertion of identical records, for
example:
Record 1 -> a: 4 b: 5
Record 2 -> a: 4 b: 5
This is what I want to avoid
Sorry for my words, I'm Spanish, not fluent in English.
On 28 mar, 20:40, luifran <lbernalhernan...@yahoo.es> wrote:
> Thanks, I'll try that way
>
> On Mar 28, 8:59 am, Massimo Di Pierro <massimo.dipie...@gmail.com>
> wrote:
>
>
>
>
>
>
>
> > db.define_table ('t', Field ('a'), Field ('b',requires=IS_EXPR('value!=
> > %s'% repr(request.vars.a)))
>
> > On Mar 28, 10:37 am, luifran <lbernalhernan...@yahoo.es> wrote:
>
> > > I have the following table, for example:
> > > db.define_table ('t', Field ('a '), Field ('b'))
> > > I want to impose the following restriction, to avoid insertion of
> > > duplicate records
> > > not allow insertion of a pair of identical values (a y b).
> > > How I can do this?, I know how to restrict a single field, but not
> > > both at once.
