[Zope3-Users] ForbiddenAttribute

Tue May 16 18:29:08 EDT 2006

hi there

I keep running into problems with my Address Book example.  This one  
should be simple but I can't find the problem.  I may have spent too  
much time looking at it.  I get this error after I add an "entry" and  
then try to edit it:

------
2006-05-16T17:09:39 ERROR SiteError http://localhost:8080/Jachin% 
20Rupe/@@edit.html
Traceback (most recent call last):
   File "/usr/local/Zope-3.2.1/lib/python/zope/publisher/publish.py",  
line 138, in publish
     result = publication.callObject(request, object)
   File "/usr/local/Zope-3.2.1/lib/python/zope/app/publication/ 
zopepublication.py", line 161, in callObject
     return mapply(ob, request.getPositionalArguments(), request)
   File "/usr/local/Zope-3.2.1/lib/python/zope/publisher/publish.py",  
line 113, in mapply
     return debug_call(object, args)
   File "/usr/local/Zope-3.2.1/lib/python/zope/publisher/publish.py",  
line 119, in debug_call
     return object(*args)
   File "/usr/local/Zope-3.2.1/lib/python/zope/app/pagetemplate/ 
simpleviewclass.py", line 44, in __call__
     return self.index(*args, **kw)
   File "/usr/local/Zope-3.2.1/lib/python/zope/app/pagetemplate/ 
viewpagetemplatefile.py", line 83, in __call__
     return self.im_func(im_self, *args, **kw)
   File "/usr/local/Zope-3.2.1/lib/python/zope/app/pagetemplate/ 
viewpagetemplatefile.py", line 51, in __call__
     sourceAnnotations=getattr(debug_flags, 'sourceAnnotations', 0),
   File "/usr/local/Zope-3.2.1/lib/python/zope/pagetemplate/ 
pagetemplate.py", line 117, in pt_render
     strictinsert=0, sourceAnnotations=sourceAnnotations)()
   File "/usr/local/Zope-3.2.1/lib/python/zope/tal/ 
talinterpreter.py", line 277, in __call__
     self.interpret(self.program)
   File "/usr/local/Zope-3.2.1/lib/python/zope/tal/ 
talinterpreter.py", line 352, in interpret
     handlers[opcode](self, args)
   File "/usr/local/Zope-3.2.1/lib/python/zope/tal/ 
talinterpreter.py", line 871, in do_condition
     if not self.tal or self.engine.evaluateBoolean(condition):
   File "/usr/local/Zope-3.2.1/lib/python/zope/tales/tales.py", line  
701, in evaluateBoolean
     return not not self.evaluate(expr)
   File "/usr/local/Zope-3.2.1/lib/python/zope/tales/tales.py", line  
696, in evaluate
     return expression(self)
   File "/usr/local/Zope-3.2.1/lib/python/zope/tales/expressions.py",  
line 205, in __call__
     return self._eval(econtext)
   File "/usr/local/Zope-3.2.1/lib/python/zope/tales/expressions.py",  
line 199, in _eval
     return ob()
   File "/usr/local/Zope-3.2.1/lib/python/zope/app/form/browser/ 
editview.py", line 98, in update
     target=content, names=self.fieldNames)
   File "/usr/local/Zope-3.2.1/lib/python/zope/app/form/utility.py",  
line 303, in applyWidgetsChanges
     changed = widget.applyChanges(target) or changed
   File "/usr/local/Zope-3.2.1/lib/python/zope/app/form/browser/ 
objectwidget.py", line 162, in applyChanges
     names=self.names)
   File "/usr/local/Zope-3.2.1/lib/python/zope/app/form/utility.py",  
line 303, in applyWidgetsChanges
     changed = widget.applyChanges(target) or changed
   File "/usr/local/Zope-3.2.1/lib/python/zope/app/form/__init__.py",  
line 86, in applyChanges
     field.set(content, value)
   File "/usr/local/Zope-3.2.1/lib/python/zope/schema/ 
_bootstrapfields.py", line 183, in set
     setattr(object, self.__name__, value)
ForbiddenAttribute: ('street', <simple_abook.entry.ABookEntry  
instance at 0x3afa828>)

-----

No data seems to get saved in the street field when I use the addform  
either.

I'll put the code I'm working with at the bottom.

I have been trying to get a good understanding of ObjectWidget and  
have been have a really hard time.  I got most of the code layout for  
this from here:  http://www.mail-archive.com/zope3-users@zope.org/ 
msg00917.html

I'm using Zope 3.2.1

It seems like since it's a security problem I should be able to fix  
it by changing something in configuration.zcml but I just can not see  
anything I'm missing.  Any help would be appreciated.

thanks.

-jachin

----------------------
configure.zcml
----------------------

<configure
	xmlns="http://namespaces.zope.org/zope"
	xmlns:browser="http://namespaces.zope.org/browser">

	<content class=".entry.StreetAddress">
		<require
			permission="zope.View"
			interface=".interfaces.IStreetAddress"
			/>
		<require
			permission="zope.ManageContent"
			set_schema=".interfaces.IStreetAddress"
			/>
	</content>

	<content class=".entry.ABookEntry">
		<require
			permission="zope.View"
			interface=".interfaces.IABookEntry"
			/>
		<require
			permission="zope.ManageContent"
			set_schema=".interfaces.IABookEntry"
			/>
	</content>

	<browser:editform
		label="Change the entry data"
		name="edit.html"
		schema=".interfaces.IABookEntry"
		class=".widget.ABookEntryEditView"
		menu="zmi_views"
		title="Edit"
		permission="zope.ManageContent"
		/>

	<browser:addform
		label="Add an entry"
		name="AddEntry.html"
		schema=".interfaces.IABookEntry"
		class=".widget.ABookEntryEditView"
		content_factory=".entry.ABookEntry"
		permission="zope.ManageContent"
		/>

	<browser:addMenuItem
		title="ABook Entry"
		class=".entry.ABookEntry"
		permission="zope.ManageContent"
		view="AddEntry.html"
		/>

</configure>

----------------------
interfaces.py
----------------------

from zope.interface import Interface
from zope.schema import TextLine, Int, Object

class IStreetAddress(Interface):

	street = TextLine(
		title=u"street",
		description=u"",
		required=False)

class IABookEntry(Interface):

	streetAddress = Object(
		schema=IStreetAddress,
		title=u"Street Address",
		description=u"",
		required=False)

	firstName = TextLine(
		title=u"First Name",
		description=u"",
		required=False)

----------------------
entry.py
----------------------

from zope.interface import implements
from interfaces import IStreetAddress, IABookEntry
from zope.schema.fieldproperty import FieldProperty

class StreetAddress:
     """The Street Address object."""

     implements(IStreetAddress)

class ABookEntry:
     """The Address Book Entry object."""
     streetAddress = FieldProperty(IABookEntry['streetAddress'])
     implements(IABookEntry)

----------------------
widget.py
----------------------

from zope.app.form.browser.editview import EditView
from zope.app.form import CustomWidgetFactory
from zope.app.form.browser import ObjectWidget

from interfaces import IABookEntry
from entry import StreetAddress, ABookEntry

class ABookEntryEditView(EditView):
     __used_for__ = IABookEntry

     streetAddress_widget = CustomWidgetFactory(ObjectWidget,  
ABookEntry)