[Zope3-Users] Problem with containers

[Martijn Pieters]

On 9/15/06, Rob Campbell <rcampbell at pcwi.net> wrote:
> I just recently started trying out Zope 3.  My first test project is a
> few containers that can contain other containers or an object.  They are
> laid out as follows:
>
> FosterRecord
> -> FosterSource
>      -> Foster
>      -> FosterGroup
>         -> Foster
>
> A FosterRecord is the top level container and can contain a
> FosterSource.  A FosterSource can contain a Foster object or a
> FosterGroup.  And a FosterGroup can contain a Foster object.

You cannot combine multiple contained or container constraints; you'll
have to define a contained contstraint for the Foster implementation
that includes both IFosterSource and IFosterGroup.

-- 
Martijn Pieters