Re: [SQLObject] Defer creating/updating objects in the database

[Ian B. <ia...@co...>]

Peter Butler wrote:
> I'm just getting to grips with SQLObject so please pardon me if this
> is a question that has been asked before.
> 
> Is it possible to defer the insert/update so that the object can be
> validated before the changes are written to the database?
> 
> I would like to be able to do the following:
> 
> object = MyObject() 
 > object.field1 = someValue
 > object.field2 = someValue
 > object.validate() object.save()
> 
> With similar logic for objects that already exist in the database.
> 
> From looking through the tutorial and source the philosophy seems
> to be to write all object changes to the database as they occur.
> This makes sense to me as it simplifies everything.

You can also set several keys at once using .set(); you might require 
that the object be valid for each call to .set().  You can also delay 
saves to the database with _lazyUpdate = True, then you can override the 
.syncUpdate() method to do validation.  Hmm... apparently I haven't 
included lazyUpdate in the docs, but it is noted in the News.

-- 
Ian Bicking  /  ia...@co...  /  http://blog.ianbicking.org