I think you want zero=None instead of zero='None', right?
On Dec 9, 5:53 pm, John-Kim Murphy <left...@gmail.com> wrote: > *I figured it out. I needed to add this validator:* > db.inbite.parent.requires = IS_EMPTY_OR(IS_IN_DB(db, 'inbite.id', > zero='None')) > > Otherwise the appadmin insert was inserting rows with parent=0, thus > introducing a reference to a non-existent row. > This also happens with the Web2Py book example for self-reference (person > table with father and mother) > > - note: inserts via the CLI (like in the book) do not cause problems in > the appadmin query page > - only when a row is inserted via the appadmin interface with a default, > blank self-reference field > > Is there a better method for adding a self-referential field that can point > to nothing? > > *Now I get a new error when I click the 'None' reference. This is not such a > big deal, though:* > > ValueError: invalid literal for int() with base 10: 'None' > > John > > On Fri, Dec 10, 2010 at 8:08 AM, Ivan Matveev <imatvee...@gmail.com> wrote: > > Your code works on my 3 weeks old web2py and MySQL. > > I can insert/view the table with db admin. > >
