[Zope3-Users] object hierarchy

[Ivan Horvath]

Dear All,

i'm really new to zope, but i have learning application, where the
object stru is little bit complex.

App
  |
  +---- Categories
                |
                +------Categ1
                             |
                             +----Type1
                                       |
                                       +-----Article1
                                                  |
                                                  +------Article2
                             +-----Type2

                +------Categ2
+----- Administration
etc

i could manage the administration part and in the categories container
i can add new category objects.
but i cannot add into a category object a type container.
i don't really know how to define an interface which is contained and
container too.

thanks in advance

Ivan