something that would be good is to have SActiveRecord as a trait like in SqueakSave this way no need to change the superclass definition of your domain to save your objects. Stef On May 4, 2011, at 9:01 PM, laurent laffont wrote:

On Wed, May 4, 2011 at 7:00 PM, Ramon Leon <ramon.leon@gmail.com> wrote: My general approach would be this sequence of steps, let's assume his class is called Person in collection var name people.

If Person has an initialize method, rename it to initializeOld. Change superclass of Person to SDActiveRecord. Person warmUp. to setup the store for this new class. people do: [:e | e initialize ] to invoke active records initialize setting up it's necessary inst vars and marking all people as new rename Person>>initializeOld back to Person>>initialize. people do: [:e | e save ]

Migration complete.

Thanks a lot Ramon, I add this to Pharocasts.

Laurent

-- Ramon Leon http://onsmalltalk.com

On Wed, May 4, 2011 at 4:58 AM, laurent laffont <laurent.laffont@gmail.com> wrote:

...

Someone knows ? Laurent

---------- Forwarded message ---------- From: Bernat Romagosa <noreply-comment@blogger.com> Date: Wed, May 4, 2011 at 1:37 PM Subject: [Pharocasts] New comment on SandstoneDb, simple ActiveRecord style persistence.... To: laurent.laffont@gmail.com

Bernat Romagosa has left a new comment on your post "SandstoneDb, simple ActiveRecord style persistence...":

I was trying to migrate a simple image-based persistence app into Sandstone, so I just recompiled my biz objects to be subclasses of SDActiveRecord, but of course the objects I want to save are already created and "floating" in the image, so when I try to save them I get an error as many instvars haven't been initialized upon creating these objects (as they were already there).

Is there a way to automatically do this?

Thanks!

Bernat.

Posted by Bernat Romagosa to Pharocasts at May 4, 2011 4:37 AM