diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/zope/pagetemplate/engine.py | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/src/zope/pagetemplate/engine.py b/src/zope/pagetemplate/engine.py index 99634fa..df307e7 100644 --- a/src/zope/pagetemplate/engine.py +++ b/src/zope/pagetemplate/engine.py @@ -22,6 +22,7 @@ import sys from zope import component from zope.interface import implementer from zope.component.interfaces import ComponentLookupError +from zope.proxy import isProxy from zope.traversing.interfaces import IPathAdapter, ITraversable from zope.traversing.interfaces import TraversalError from zope.traversing.adapters import traversePathElement @@ -66,6 +67,8 @@ class ZopeTraverser(object): # special-case dicts for performance reasons if getattr(object, '__class__', None) == dict: object = object[name] + elif isinstance(object, dict) and not isProxy(object): + object = object[name] else: object = traversePathElement(object, name, path_items, request=request) @@ -386,6 +389,25 @@ class ZopeEngine(ZopeBaseEngine): ... KeyError: 'keys' + This special-casing also applies to non-proxied dict subclasses: + + >>> class TraverserDict(dict): + ... def __init__(self): + ... self.item_requested = None + ... def __getitem__(self, item): + ... self.item_requested = item + ... return dict.__getitem__(self, item) + + >>> d = engine.getBaseNames() + >>> foo = TraverserDict() + >>> d['foo'] = foo + >>> foo['bar'] = 'baz' + >>> context = engine.getContext(d) + >>> context.evaluate('foo/bar') + 'baz' + >>> foo.item_requested + 'bar' + >>> tearDown() """ |