[Zope] MVC pattern

[Steve Hunter]

Hello,
 Does a template exist for implementing an MVC (VisualWorks Smalltalk) like
structure  for
Products. The Product example I have shows inheriting Zope class info and
DTML info
into the "domain object". I'd like a pattern where the Python objects remain
clean, are
wrapped by a value model, and linked via the value model with a presentation
scheme (DTML). Some
code is presented below to the idea across but is not a suggested
implementation.

class DomainWrapper(
	OFS.SimpleItem.Item,
	Persistent,
	Acquisition.Implicit,
	AccessControl.Role.RoleManager,
	):

	# Specify definitions for tabs:
    manage_options=(
	{'label':'Properties', 'action':'manage_main'},
	{'label':'View',       'action':''},
	{'label':'Security',   'action':'manage_access'},
	)

    # Specify how individual operations add up to "permissions":
    __ac_permissions__=(
	('View management screens', ('manage_tabs','manage_main')),
	('Change permissions',      ('manage_access',)           ),
	('Change Persons',         ('manage_edit',)),
	('View',                    ('','manage_self_edit')      ),
	)

	_domainObj = ''
	index_html = HTMLFile('blank',globals())

	def for(self,aDomainObject)
		_domainObj = aDomainObject

	def defaultHTML(self, aDTMLFile)
		index_html = HTMLFile(aDTMLFile)
#end class DomainWrapper

class DomainObj:
#end class DomainObj

class Person(DomainObj):
	_lname = ''
	_fname = ''
	_ssn = ''

	def _init_(self, lastname, firstname,ssn ):
		_lname = lastname
		_fname = firstname
		_ssn = ssn
#end class Person

p = Person(John,Smith,1112223333)
pdw = DomainWrapper.for(p)
pdw.defaultHTML('person.dtml')







regards,
 Steve