On Sat, 2008-12-13 at 20:39 +0300, Oleg Broytmann wrote:
> On Sat, Dec 13, 2008 at 07:26:14PM +0200, Iwan Vosloo wrote:
> When the connection calls self.queryOne() - is 'self' the connection or
> the transaction? Transaction overrides queryOne method to pass the existing
> connection instead of creating a new one, but from you exploration it seems
> the overridden method is not called, instead the connection calls original
> queryOne and creates a new low-level connection.
Self is the connection.
What happens is this line (dbconnection.py):
755 attr = getattr(self._dbConnection, attr)
is called while self is still the Transaction, for attr
'server_version'.
This returns the server_version (bound) method on the connection, and
calls that with self == the connection. Inside there is where the
self.queryOne is called:
304 server_version = self.queryOne("SELECT version()")[0]
Maybe a simple workaround would be to implement a server_version method
on the Transaction too? (Or to just set it to a value.)
- Iwan
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