[Zope] Creating an instance of another class?

[Max M]

You could make it easier for yourself if you wrap it with an external 
method or something. It also makes it easier to do custom stuff on added 
objects. I sometime use a function like this::


def add_portal_type(self, parent, portal_type, id='', title='',
                     REQUEST=None):

     "Adds the content. This is a factory function."

     # generate a general id
     if id == '':
         id = self.ZopeTime().strftime(portal_type + '_%Y%m%d_%H%M%S')

     # set up fast factory lookup
     f = parent.manage_addProduct
     factory_functions = {
         'Folder': f['OFSP'].manage_addFolder
         'PersonalPortrait': f['ots_Image'].manage_addAction_ots_Image
         'Document': f['ots_Document'].manage_addAction_ots_Document
         'Image': f['ots_Image'].manage_addAction_ots_Image
         'File': f['ots_File'].manage_addAction_ots_File
         'User': f['ots_UserBase'].manage_AddAction_ots_UserBase
     }

     # create the object
     factory_functions[portal_type](id)

     # get the newly added content
     obj = getattr(parent, id)
     obj.title = title

     # Optional custom stuff
     if portal_type = 'Document':
         obj.description = 'Add your description here'

     return obj