[Zope] object creation in a specific folder...

[J Cameron Cooper]

Rushabh Mehta wrote:
> hello all,
> 
> this is my first zope app... i am trying to figure out how to create
> an object in a particular folder via script, when my current object
> may not be in the right tree...
> 
> I tried to do a 'change folder' via restrictedTraverse (eg 
> context.getRestrictedTraverse('/myapp/myfolder'), and then create the
> object using manage_addProduct... but it dosnt seem to work. any tips?

The manage_addProduct method creates an object in the context in which 
is was called. Which is to say, the object it is called on. If you say 
context.manage_addProduct(...) you're creating an object on the current 
object (or the current object's container.)

The restrictedTraverse method gets and returns some object; it does not 
"change folders". (The API note reads: "Return the object obtained by 
traversing the given path from the object on which the method was 
called, performing security checks along the way.") You're thinking 
file-system-wise, and that doesn't work here. Think objects.

(Note: I don't think 'getRestrictedTraverse' exists. 
'restrictedTraverse' on the other hand, definitely does.)

What you want to do, then, is call manage_addProduct on the object 
returned by restrictedTraverse::

   context.restrictedTraverse('/wherever/a').manage_addProduct(...)

Of course, you can also get a certain folder via acquisition::

   context.wherever.a.manager_addProduct(...)

unless you're getting paths dynamically.

		--jcc