This is not a list:reference field, just a regular reference. On Monday, March 4, 2013 9:07:35 AM UTC-5, Richard wrote: > > There is a issue open for this by me and Massimo try a couple of time to > solve it, but it seems it still there... > > Richard > > > On Mon, Mar 4, 2013 at 8:34 AM, Anthony <abas...@gmail.com > <javascript:>>wrote: > >> db.category.parent.requires = IS_EMPTY_OR(IS_IN_DB(db, >> 'category.category')) >> >> On Sunday, March 3, 2013 9:34:59 PM UTC-5, 黄祥 wrote: >>> >>> a, thank you so much for your detail explaination anthony. it's work >>> fine now by add : >>> >>> db.category.parent.requires=**IS_IN_DB(db, 'category.category') >>> >>> btw, with this, i still have a problem for input the parent category. >>> because in form there is not allowed to put an empty value. i have 2 ideas >>> for this problem : >>> 1. put the parent category directly to database via database input >>> command >>> 2. create the root category above parent category : >>> for example >>> root category >>> | >>> parent category >>> | >>> child category >>> >>> do you have better idea or suggestion about this? >>> >>> thanks a lot before >>> >> -- >> >> --- >> 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 web2py+un...@googlegroups.com <javascript:>. >> For more options, visit https://groups.google.com/groups/opt_out. >> >> >> > >
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