[Zope-dev] When should one call Connection.sync?

[Syver Enstad]

I am using ZODB 3.2 in a twisted based web application. I have read
that I need to call sync to keep the connection up to date. When
exactly should I call sync? Are there any drawbacks with calling it
immediately after getting a connection, like this:

# for each http request.
connection = db.open() # (a DB instance)
connection.setLocalTransaction()
connection.sync()

# start using the ZODB here.

# if something needs to be committed
connection.getTransaction().commit()