[Zope-dev] broken selection property support in z2.2

[Scott Parish]

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OIC, thanks for the clerification on that.

sRp

Thus spake Brian Lloyd (Brian@digicool.com):

> > I tried creating a zclass that had a property sheet with a=20
> > selection type,
> > which i had reference a property of a given name.  I then went to the=
=20
> > root folder in zope and created that property as a lines type.  When
> > i created an instance of my zclass though, it said "no value=20
> > for given_name".
> > To fix this i changed the OFS/properties.dtml file to use the=20
> > same syntax
> > as the properties.dtml in z2.1:
> >=20
> >   <dtml-elif "type=3D=3D'selection'">
> >     <dtml-if "_.has_key(select_variable)">
> >     <select name=3D"<dtml-var id>">
> >       <dtml-in "_[select_variable]">
> >=20
> > It used to use hasProperty and getProperty methods.  I'm not=20
> > entirely sure
> > why they were used, or what they are suppose to do differently, but it
> > doesn't seem to work.
>=20
> Scott,
>=20
> The 'selection' and 'multiple selection' properties are=20
> really built with the idea that you use another property=20
> *of the same object* (rather than an acquired value) to=20
> bind the selection to. Your change works for your case,=20
> but if you try to bind to another property of the same=20
> ZClass you'll find that in your management screens that=20
> your selection property will fail (because it is looking=20
> in '_' for the value, which is the wrong place to look=20
> if you are expecting to find the value as another property=20
> of the same object.
>=20
> Brian Lloyd        brian@digicool.com
> Software Engineer  540.371.6909             =20
> Digital Creations  http://www.digicool.com=20
>=20
>=20

--=20
Scott Parish
http://srparish.net

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