[Re: [Re: [Zope] Problem with passing objects from External Methods]]
Chris McDonough
chrism@digicool.com
Wed, 11 Apr 2001 01:03:31 -0400
Jason,
I reported this issue to the Collector (the Zope bug tracking system) and I
hope to get a chance to take a closer look at it tomorrow. Sorry I can't be
more helpful right now...
- C
----- Original Message -----
From: "Jason Joy" <kyroraz@usa.net>
To: "Chris McDonough" <chrism@digicool.com>
Sent: Tuesday, April 10, 2001 8:24 PM
Subject: Re: [Re: [Re: [Zope] Problem with passing objects from External
Methods]]
Yes, there is visible (non-only source) tracebacks available:
Zope Error
Zope has encountered an error while publishing this resource.
Error Type: TypeError
Error Value: call of non-function (type string)
Troubleshooting Suggestions
The URL may be incorrect.
The parameters passed to this resource may be incorrect.
A resource that this resource relies on may be encountering an error.
For more detailed information about the error, please refer to the HTML
source
for this page.
If the error persists please contact the site maintainer. Thank you for your
patience.
File /usr/local/Zope-2.3.0/lib/python/ZPublisher/Publish.py, line 222, in
publish_module
File /usr/local/Zope-2.3.0/lib/python/ZPublisher/Publish.py, line 187, in
publish
File /usr/local/Zope-2.3.0/lib/python/Zope/__init__.py, line 221, in
zpublisher_exception_hook (Object: Traversable)
File /usr/local/Zope-2.3.0/lib/python/ZPublisher/Publish.py, line 171, in
publish
File /usr/local/Zope-2.3.0/lib/python/ZPublisher/mapply.py, line 160, in
mapply (Object: DTMLFILE)
File /usr/local/Zope-2.3.0/lib/python/ZPublisher/Publish.py, line 112, in
call_object (Object: DTMLFILE)
File /usr/local/Zope-2.3.0/lib/python/OFS/DTMLMethod.py, line 189, in
__call__
(Object: DTMLFILE)
File /usr/local/Zope-2.3.0/lib/python/DocumentTemplate/DT_String.py, line
538,
in __call__ (Object: DTMLFILE)
File /usr/local/Zope-2.3.0/lib/python/DocumentTemplate/DT_In.py, line 711,
in
renderwob (Object: passthis(foo))
File /usr/local/Zope-2.3.0/lib/python/DocumentTemplate/DT_Util.py, line 328,
in eval (Object: foo) (Info: foo)
File /usr/local/Zope-2.3.0/lib/python/OFS/DTMLMethod.py, line 261, in
validate
(Object: DTMLFILE)
File /usr/local/Zope-2.3.0/lib/python/AccessControl/SecurityManager.py, line
144, in validate
File /usr/local/Zope-2.3.0/lib/python/AccessControl/ZopeSecurityPolicy.py,
line 164, in validate TypeError: (see above)
Chris McDonough <chrism@digicool.com> wrote:
Hi Jason,
Is there a traceback associated with the error? (If it's not
immediately evident, view the page source).
Jason Joy wrote:
>
> Chris,
>
> I thank you for all your help with this frustrating issue. All your
changes
> have pointed me in the right direction, but I am facing one other issue
with
> it that I was wondering if you could shed some light on.
>
> The <dtml-var foo> within the <dtml-in passthis(bar)> is raising an
> interesting error of:
>
> Error Type: TypeError
> Error Value: call of non-function (type string)
>
> Removing the <dtml-var foo> does not bring up this error, of course. Is
there
> something that I am missing?
>
> Jason
>
> Chris McDonough <chrism@digicool.com> wrote:
> Hi Jason,
>
> This is a stumper. But there's a solution. Rewrite your external
> method to look like this:
>
> import string, regex
> from AccessControl import ClassSecurityInfo
> from Acquisition import Implicit
> import Globals
>
> class element(Implicit):
> security = ClassSecurityInfo()
> security.declareObjectPublic()
> security.setDefaultAccess('allow')
>
> def passthis(passed):
> info = []
> structures = string.split(passed)
> for structure in structures:
> bit = element()
> bit.data = foo
> bit.source = structure
> info.append(bit)
> return(info)
>
> Globals.InitializeClass(element)
>
> For more info on why this is necessary, see
>
http://dev.zope.org/Wikis/DevSite/Projects/DeclarativeSecurity/ZopeSecurityF
orDevelopers
>
> HTH,
>
> - C
>
> > def passthis(passed):
> > class element:
> > pass
> > info = []
> > structures = string.split(passed)
> > for structure in structures:
> > bit = element()
> > ## Get Information here, and store it in foo.
> > bit.data = foo
> > bit.source = structure
> > info.append(bit)
> > return(info)
> >
> > ---
>
> Jason Joy wrote:
> >
> > This one has been driving me a bit crazy and I think there is a simple
> > solution to this. I have written an external method to return a list of
> > objects back to a DTML method which executes the code via a dtml-in.
> >
> > The dtml code looks like:
> >
> > <dtml-in processMethod(passthis)>
> > <dtml-var sequence-index><dtml-var data><BR>
> > </dtml-in>
> >
> > And this is passthis.py:
> >
> > import string, regex
> >
> > def passthis(passed):
> > class element:
> > pass
> > info = []
> > structures = string.split(passed)
> > for structure in structures:
> > bit = element()
> > ## Get Information here, and store it in foo.
> > bit.data = foo
> > bit.source = structure
> > info.append(bit)
> > return(info)
> >
> > ---
> >
> > When I run the code, I get a box that asks me to revalidate my Zope
login
> and
> > nothing works, finally, the system gives up and gives me an error with
this
> at
> > the bottom:
> >
> > File
/usr/local/Zope-2.3.0/lib/python/AccessControl/ZopeSecurityPolicy.py,
> > line 168, in validate
> > Unauthorized: data
> >
> > Does anyone have any advice on this one? This is an example of what I
am
> > doing and I need to pass a list of objects (with about 10 properties on
> each)
> > to be run through a dtml-in.
> >
> > Thanks,
> >
> > Jason
> >
> > ____________________________________________________________________
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> >
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