[Zope] Re: Cannot delete Object with wrong metatype

12 May 2000

      Helmut Toplitzer wrote:
...
Hi!
I'm trying to make a website for some weeks now and
yesterday a noticed a real problem for me.
One of the standardfiles index_html (DTML Method)
changed it's metatype to a !Folder!
I've tried to delete it several times with no
success.
Has someone a idea how to make it work again?
Helmut
Hi!

Its me again. I found a solution for the above Problem:

Ist not the wrong metatype (it just looks like)
its of the wrong class (broken product).

I found the folowing solution for this (with a few
deletions on the marked ---> lines becaus i cant patch
the original file. marked lines deleted in original file.)
(Solution from http://classic.zope.org:8080/Collector/1183/view )
After this patch try to delete the object, it should work.
(maybe only in my case)
When it's done, replace with the old file  (lib/python/OFS/.)
and restart, because of no warenties.

                       --- ObjectManager.py    2000/05/11 18:54:14    
1.89
                       +++ ObjectManager.py    2000/05/12 01:19:43
                       @@ -99,9 +99,13 @@
                        import marshal
                        import App.Common
--->                        from AccessControl import getSecurityManager
--->                       +from zLOG import LOG, ERROR
                       +import sys

                        bad_id=ts_regex.compile('[^a-zA-Z0-9-_~\,\.
]').search #TS

                       +class BeforeDeleteException( Exception ): pass #
raise to veto deletion
                       +
                        _marker=[]
                        class ObjectManager(
                            CopySupport.CopyContainer,
                       @@ -271,12 +275,26 @@
                                for object in self.objectValues():
                                    try: s=object._p_changed
                                    except: s=0
                       -            object.manage_beforeDelete(item,
container)
                       +            try:
                       +                
object.manage_beforeDelete(item, container)
---->                       +            except BeforeDeleteException,
ob:
---->                       +                raise
                       +            except:
---->                       +               
LOG('Zope',ERROR,'manage_beforeDelete() threw',
---->                       +                    error=sys.exc_info())
                       +                pass
                                    if s is None: object._p_deactivate()

                            def _delObject(self, id, dp=1):
                                object=self._getOb(id)
                       -        object.manage_beforeDelete(object, self)
                       +        try:
                       +            object.manage_beforeDelete(object,
self)
---->                       +        except BeforeDeleteException, ob:
---->                       +            raise
                       +        except:
---->                       +           
LOG('Zope',ERROR,'manage_beforeDelete() threw',
---->                       +                error=sys.exc_info())
                       +            pass
                                self._objects=tuple(filter(lambda
i,n=id: i['id']!=n, self._objects))
                                self._delOb(id)