Hi,
Based on Chameleon documentation, I'm trying to write a custom "provider:"
TALES expression which will allow to load another content provider
template, based on a registered named adapter.
The code is as follow:
class ProviderExpression(object):
"""provider: TALES expression"""
def __init__(self, expression):
self.expression = expression
def __call__(self, target, engine):
request = get_current_request()
registry = request.registry
provider = registry.queryMultiAdapter((request.context, request,
request.annotations['view']),
IContentProvider,
name=self.expression)
if provider is None:
raise ContentProviderLookupError(self.expression)
provider.update()
value = ast.Str(provider.render())
return [ast.Assign(targets=[target], value=value)]
PageTemplateFile.expression_types['provider'] = ProviderExpression
My problem with this is simple: when the main template is loaded for the
first time, everything is OK. But afterwards, the output of the content
provider is cached and the dynamic elements are not executed anymore!
What is the way to handle this?
Best regards,
Thierry
--
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