Re: [Zope] Re: [Zope3-Users] Cannot view the instances after I refresh the product in ZMI

Peter Bengtsson, you are right, my class is subclassing the product Folder,
because I need the features of Folder.

My code is followed:

from OFS.Folder import Folder
from Globals import  DTMLFile
from Acquisition import Implicit

manage_addNewPageForm = DTMLFile("dtml/manage_addNewPageForm", globals())

def manage_addNewPage(self, id, note, REQUEST):
    """ A method to create object
    """
    newObject = MMPage(id, note)
    self._setObject(id, newObject)
    if REQUEST:
        return self.manage_main(self, REQUEST)

class MMPage(Folder):
    meta_type = "MM Page"

    def __init__(self, id, note):
        # Set private fields
        self._note = note
        self.PageData = {}

        Folder.__init__(self, id)

    #def index_html(self, Context = None, REQUEST = None):
    def index_html(self, REQUEST = None):
        """ render content to client
        """
        # invoke onLoad method
        if "onLoad" in self.objectIds("Script (Python)"):
            self["onLoad"]()

        # Render HTML
        return self._render(REQUEST)

    def _render(self, REQUEST):
        """ Render HTML to browser
        """
        self.page = self.getPageTemplate()
        return self.page(REQUEST, **self.PageData)

    def getPageTemplate(self):
        return DTMLFile("/home/alex/zope2/Products/MMPage/dtml/template",
globals())

    def sayLove(self):
        """
        """
        return "How do I love thee? Let's count the ways---for testing3"




2007/2/28, Peter Bengtsson <peter-mMftuLXk/[email protected]>:
>
> You're most likely getting that error because your product is
> subclassing another product that has been refreshed.
> Suppose you do this in MyAProduct.py
>
> from Products.AnotherProduct.Foo import SomeClass
> class ThisProduct(SomeClass):
>    bla bla bla
>
>
> If you refresh AnotherProduct, the MyAProduct will break and you'll get
> the error you mentioned.
>
>
> David Johnson wrote:
> > Paste the code here. :)
> >
> > On Feb 27, 2007, at 6:16 AM, Alex Cheng wrote:
> >
> >> Hello,
> >>
> >> I have modified my product code and click refresh in ZMI to update the
> >> product. Unfortunately when I view its instance in zope. The error
> >> message is follows:
> >>
> >> Error Type: TypeError
> >> Error Value: 'NoneType' object is not callable
> >>
> >> Could you help me?
> >>
> >> Thanks.
> >> --powered by python
> >> _______________________________________________
> >> Zope3-users mailing list
> >> [email protected]
> >> http://mail.zope.org/mailman/listinfo/zope3-users
> >
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> >
>
> --
> Peter Bengtsson,
> work www.fry-it.com
> home www.peterbe.com
> hobby www.issuetrackerproduct.com
>



-- 
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