c.l.w.d.LaunchpadDatabasePolicy(BaseDatabasePolicy) : class documentation

Part of canonical.launchpad.webapp.dbpolicy View In Hierarchy

Default database policy for web requests.

Selects the DEFAULT_FLAVOR based on the request.

Method __init__ Undocumented
Method install See IDatabasePolicy.
Method uninstall See IDatabasePolicy.
Method getReplicationLag Return the replication lag on the MAIN_STORE slave.
Method _hasSession Is there is already a session cookie hanging around?

Inherited from BaseDatabasePolicy:

Method getStore See IDatabasePolicy.
Method __enter__ See IDatabasePolicy.
Method __exit__ See IDatabasePolicy.
def __init__(self, request):
overrides canonical.launchpad.webapp.dbpolicy.BaseDatabasePolicy.__init__
Undocumented
def _hasSession(self):
Is there is already a session cookie hanging around?
def install(self):
from canonical.launchpad.webapp.interfaces.IDatabasePolicy
overrides canonical.launchpad.webapp.dbpolicy.BaseDatabasePolicy.install
See IDatabasePolicy.
def uninstall(self):
from canonical.launchpad.webapp.interfaces.IDatabasePolicy
overrides canonical.launchpad.webapp.dbpolicy.BaseDatabasePolicy.uninstall
See IDatabasePolicy.

If the request just handled was not read_only, we need to store this fact and the timestamp in the session. Subsequent requests can then keep using the master until they are sure any changes made have been propagated.

def getReplicationLag(self):
Return the replication lag on the MAIN_STORE slave.

Lag to other replication sets is currently ignored.

Returnstimedelta, or None if this isn't a replicated environment,
API Documentation for Launchpad, generated by pydoctor at 2010-09-27 00:00:11.