Thanks for the reply Bruno. I tryied both ways, and works perfectly. But, if the book says that IS_NULL_OR is deprecated, don't you think, it will be better to show a "un-deprecated" example? IMHO will be less confusing.
bye. PS: sorry again for my bad english. On 7 sep, 10:43, Bruno Rocha <[email protected]> wrote: > Both will work. > > http://zerp.ly/rochacbruno > Em 07/09/2011 10:36, "juanduke" <[email protected]> escreveu: > > > > > > > > > Hi! > > Reading the validators section, it says: > > > IS_NULL_OR > > Deprecated, an alias for IS_EMPTY_OR described below. > > > IS_EMPTY_OR > > Sometimes you need to allow empty values on a field along with other > > requirements. For example a field may be a date but it can also be > > empty. The IS_EMPTY_OR validator allows this: > > > requires = IS_NULL_OR(IS_DATE()) > > > I think the last sentence must be: > > requires = IS_EMPTY_OR(IS_DATE()) > > > Or please tell me if I'm wrong. > > > Bye. > > > PS: Sorry for my bad english

