Olivier Migeon wrote:
To the best of my knowledge (correct me if I'm wrong), you can't rely on
instances variables to store persistent-accross-requests variables : the
instance may or may be not reused, may or not be cached.
true.
I though that storing the result of my query in a class variable would
solve the problem, but it doesn't.
My code looks like this:
(...)
So, my questions are :
1) why doesn't it work ? It's not a caching issue because my
CacheServletClasses is set to 0 in my Application.config file.
i may be wrong but this setting means that at *every* page
request your MyPage class will be recreated from scratch.
2) what is the best way to make persistent variables accross requests
and sessions ?
i use to compile-once cheetah templates and store them in
a dictionary stored in SitePage class var, like you do your
code. see below:
class SitePage(Page):
# master page template
HTML = 'site.html'
# ... other code ...
_cache = {} # master page template objects
def writeHTML(self):
if self.HTML in SitePage._cache:
t = SitePage._cache[self.HTML]
else:
app = self.application()
path = app.serverSidePath('www/t/%s' % self.HTML)
# if file changes reload app
modloader.watchFile(path)
t = Template(file=path, filter=Latin1Encoder)
SitePage._cache[self.HTML] = t
# access to self with $s in template
t.s = self
self.write(str(t))
but CacheServletClasses must be set to 1 if I want that webware
caches servlet classes, hence page templates.
cheers,
deelan.
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