Hello there!
I got this neat idea, and I'm not sure if it is supposed to work...
Quick (if you're not interested in the full scenario)
Is it possible to invoke: WSGIController.__call__(self, environ,
start_response) many times during 1 http request to Pylons?
A bit longer description:
My user scenario is:
Browser/user sends request --->
1* server receives and calls some Controller
1* WSGIController.__call__(self, environ, start_response) is
being invoked, which..
1* raises some Exception (database deadlock)
<-- error middleware catches exception, and redirects error page
user gets error page -->
Above is normal situation. I'd like to improve it, so that server
itself tries to handle db exception by restarting the request and
_maybe_ next time DB will unlock tables, so that
still-the-same-request can be processed without an error to the user.
So here is what I do:
Browser/user sends request --->
* server receives and calls some Controller
1* WSGIController.__call__(self, environ, start_response) is
being invoked, which..
1* raises some Exception (database deadlock)
2* I catch the exception and run again:
WSGIController.__call__(self, environ, start_response)
2* still raises some Exception (database deadlock)
3* I catch the exception and run again:
WSGIController.__call__(self, environ, start_response)
* db is now unlocked and requests completes
<-- some Mako page is returned to a user
user SHOULD gets some success page -->
What happens is that returned value from __call__(..) is not quite
HTML string. Rather, it's a concatenation of final HTML with the same
HTML page with tags escaped...
So instead of str("<html>Hello</html>")
I get str("<html>Hello</html><html>Hello</html>") which is wrong...
Should I call sth else before calling __call__ again()
Will it work, can it be done?
Thanks for any response
T.
--
_i______'simplicity_is_the_key'__________tomasz_nazar
_ii____'i_am_concern_oriented'________________JKM-UPR
_iii__'patsystem.sf.net'___________________linux_user
_'aspectized.com'___________________________prevayler
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