[ZODB-Dev] Re: [Zope] ZODB.POSException.ReadConflictError

[Christopher N. Deckard]

On Wed, 8 Jan 2003 12:28:11 +0000, Toby Dickenson spoke forth:

> On Wednesday 08 January 2003 12:11 pm, Christopher N. Deckard
> wrote:
> 
> > > Not really. The idea behind ReadConflictErrors is that your
> > > update may have changed some data which the query is then
> > > trying to use, but this may not be consistent which the rest
> > > of the information your query has already used, so the error
> > > is raised.
> >
> > It'd be neat if the old copy of the object and catalog were
> > available until the update transaction was completed.  Then the
> > new ones could be put in.  I don't know the details in how
> > updates are handled in the ZODB though.
> 
> That is planned for the future. For now you can fake it by
> touching every object you need at the start of your transaction.
> That moves a copy into memory, and every access for the rest of
> that transaction will be safe from ReadConflictErrors

So how I do that?  Just make a reference to it somewhere in my code?
 I would assume that it should be doing that already since I do
"touch" things throughout the query.  I only need to touch the
catalog, and I thought that I was doing that.

-Chris