Re: [ZODB-Dev] Mutating class of an instance

2008-07-02 Thread Jean Jordaan
Any chance I can get zeo to tell the other clients about the new class? Speaking purely as an idiot .. can't you tell ZEO the normal way? I.e. just make it think the instance changed. Edit it, or set _p_changed on it. -- jean . .. //\\\oo///\\

[ZODB-Dev] Locking

2008-07-02 Thread Joseph Turian
How do I lock zodb objects? I want the following process: See if key is present in root. [it's not] Lock key write-access, so that no other client will try to write key. Compute value for key. Write value for key. Unlock key. How do I achieve this? Thanks! Joseph -- Academic:

Re: [ZODB-Dev] Mutating class of an instance

2008-07-02 Thread Marius Gedminas
On Wed, Jul 02, 2008 at 08:07:56AM -0400, Erik Dahl wrote: I have a situation where I want to mutate the class of an instance like this: inst.__class__ = NewClass Is inst a persistent object? Then your only chance to get this to work is to find *all* objects that reference inst and mark

Re: [ZODB-Dev] Locking

2008-07-02 Thread Andreas Jung
--On 2. Juli 2008 16:45:53 -0400 Joseph Turian [EMAIL PROTECTED] wrote: How do I lock zodb objects? Zope provides locking for WebDAV under the hood. Means you can not lock/unlock objects directly through the Zope UI (except the global webdav lock manager in the ZMI for _unlocking_