def test_preprocessorCollection(self):
"""
Test that preprocessors from all the base classes of an instance are
found, and that a preprocessor instance attribute overrides all of
these.
"""
a, b, c = object(), object(), object()
class Base(object):
preprocessors = [a]
class OtherBase(object):
preprocessors = [b]
class Derived(Base, OtherBase):
preprocessors = [c]
inst = Derived()
self.assertEqual(
rend._getPreprocessors(inst),
[a, b, c])
d = object()
inst.preprocessors = [d]
self.assertEqual(
rend._getPreprocessors(inst),
[d])
def rend(self, context, data):
"""
Backwards compatibility stub. This is only here so that derived
classes can upcall to it. It is not otherwise used in the rendering
process.
"""
context.remember(_OldRendererFactory(self), IRendererFactory)
docFactory = self.docFactory
if docFactory is None:
raise MissingDocumentFactory(self)
return docFactory.load(None, _getPreprocessors(self))
def rend(self, context, data):
"""
Backwards compatibility stub. This is only here so that derived
classes can upcall to it. It is not otherwise used in the rendering
process.
"""
context.remember(_OldRendererFactory(self), IRendererFactory)
docFactory = self.docFactory
if docFactory is None:
raise MissingDocumentFactory(self)
return docFactory.load(None, _getPreprocessors(self))
def render(self, request):
"""
Load and return C{self.docFactory}.
"""
rend = self.rend
if rend.im_func is not Element.__dict__['rend']:
context = _ctxForRequest(request, [], self, False)
return rend(context, None)
docFactory = self.docFactory
if docFactory is None:
raise MissingDocumentFactory(self)
return docFactory.load(None, _getPreprocessors(self))
def render(self, request):
"""
Load and return C{self.docFactory}.
"""
rend = self.rend
if rend.im_func is not Element.__dict__['rend']:
context = _ctxForRequest(request, [], self, False)
return rend(context, None)
docFactory = self.docFactory
if docFactory is None:
raise MissingDocumentFactory(self)
return docFactory.load(None, _getPreprocessors(self))
def rend(self, ctx, data):
# Unfortunately, we still need a context to make the rest of the
# rendering process work. A goal should be to elimate this completely.
context = WovenContext()
if self.docFactory is None:
raise MissingDocumentFactory(self)
preprocessors = _getPreprocessors(self)
doc = self.docFactory.load(context, preprocessors)
context.remember(self, IData)
context.remember(self, IRenderer)
context.remember(self, IRendererFactory)
context.tag = invisible[doc]
return context
