I think these are interesting hooks, but don't offer a lot in the way
of capabilities. I think if we were to pass in the controller
instance to these hooks they would be a lot more valuable.
What I would like to be able to do is override a template on a per-
controller-instance basis. This means I need access to the controller
instance in the before_render and after_render decorators. I imagine
something like this:
class MyCrazyController(TGController):
def __init__(self, is_shouting=False):
self.is_shouting = is_shouting
self.default_engine = self.index.decoration.engine['text/
html']
def shouting(self, *args, **kw):
current_engine = self.index.decoration.engine['text/html']
self.index.decoration.engine['text/html'] =
['genshi','shouting_template'].extend(current_engine[:2])
self.default_engine = current_engine
def default_voice(self, *args, **kw):
self.index.decoration.engine['text/html'] =
self.default_engine
@before_render(shouting)
@after_render(default_voice)
@expose('genshi:regular_template')
def index(self, *args, **kw):
return dict(john_wayne="you got that right, kid")
This should not require a major change to controllers.py, but I wanted
some second opinions before I implement it.
cheers.
-chris
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