[Twisted-web] problem with missing data in nevow
Eric Faurot
eric.faurot at gmail.com
Thu Sep 1 06:15:57 MDT 2005
The following example result in an endless (actually until python runs out
of mem) loop. The problem is that the data passed to render_heading is
actually a stan tree displaying an error message (from rend.DataFactory.child).
If the data is not found, the render should not be called at all.
8<-----------
from nevow import rend, static, tags as t, loaders
from nevow.appserver import NevowSite
from twisted.application import service, internet
class Page(rend.Page):
docFactory = loaders.stan(
t.html[
t.head[
t.title[ 'title' ]
],
t.body[
t.h1(render=t.directive('heading'), data=t.directive('hdata'))
]
])
def render_heading(self, ctx, data):
return ctx.tag[data]
#def data_hdata(self, ctx, data):
# return 'Hey'
application = service.Application('Test')
internet.TCPServer(8080,
NevowSite(Page())
).setServiceParent(application)
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