Martijn Pieters wrote:
On 9/15/06, Rob Campbell <[EMAIL PROTECTED]> 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.
Ok, so it can't be done by implementing both IFosterSourceContained and
IFosterGroupContained? I am doing that currently with the following code:
class Foster(Contained):
implements(IFoster, IFosterSourceContained, IFosterGroupContained)
Would I need to create a new IContained interface? Maybe something like
this:
class IFosterSourceOrGroupContained(IContained):
containers(IFosterSourceContainer, IFosterGroupContainer)
and then change Foster to this:
class Foster(IContained):
implements(IFoster, IFosterSourceOrGroupContained)
Thank you for the help.
--
Rob Campbell
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