Hi Morten,
There are two ways to subclass products. You can use straightforward
Python subclassing:
e.g.,In your custom Product.. here is an example from Zwiff:
import Products.PythonMethod.Guarded
from Globals import HTMLFile, MessageDialog
from App import Common
manage_addZwiffForm = HTMLFile('addForm',globals())
def manage_addZwiff(self, id, title, params, body, REQUEST=None):
"""Add A Zwiff to a folder just like PythonMethod..
"""
it = Zwiff(id, title, params, body)
self._setObject(id, it)
return self.manage_main(self, REQUEST)
def handleMovieOutput(movie, RESPONSE):
fname = tempfile.mktemp()
movie.save(fname)
f = open(fname)
s = f.read()
f.close()
RESPONSE.setHeader('Content-type', 'application/x-shockwave-flash')
os.remove(fname)
return s
class Zwiff (Products.PythonMethod.PythonMethod.PythonMethod ):
meta_type = 'Zwiff'
def makeFunction(self, compile=0):
from Products.PythonMethod.Guarded import GuardedBlock, safefuncs, theGuard
if compile:
self._checkCBlock(GuardedBlock)
if self.errors:
raise "Python Method Error", string.join(self.errors, '\n')
return self._newfun(compile, {'$guard': theGuard},
__builtins__=mysafebin, _=safefuncs)
So the class Zwiff is a subclass of PythonMethod. Look at Zwiff for the full
source: http://www.zope.org/Members/sspickle/Zwiff
Or you can create a ZClass that subclasses from a 'base class'. To do
this you've got to register the base class with the ZClass machinery
(e.g., here is the code for ZCVSMixin that does this ZCVSMixin
is a base class... CVSFolder is a full blown product that happens
to be a subclass of ZCVSMixin... )
import ZCVSMixin
import CVSFolder
__doc__ = ZCVSMixin.__doc__
__version__ = ZCVSMixin.__version__
def initialize(context):
context.registerClass(
CVSFolder.CVSFolder,
constructors=(CVSFolder.manage_addCVSFolderForm,
CVSFolder.manage_addCVSFolder),
icon='fish.gif',
)
context.registerBaseClass(ZCVSMixin.ZCVSMixin)
does that help?
take care,
-steve
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