[LRUG] Binding the creation of 2+ objects together

[Matthew Rudy Jacobs]

2008/7/31 Tom Ward <tom at popdog.net>

> On Thu, Jul 31, 2008 at 5:39 PM, Anthony Green <email at acgreen.co.uk>
> wrote:
> >
> > I thought transactions were usually called within a controller ?
>
> I don't think so.  In almost all circumstances, database transactions
> belong in the model.
>
> > What I'm looking for is a solution defined as part of the association
> > declaration thereby enforcing the business rules the objects have.
> >
> > ..or similar
>
> I think if you do something like:
>
> b = Book.new(:title => 'Catch 22')
> b.author.build(:name => 'Joseph Heller')
> b.save
>
> b.save should save the author and the book, both within a transaction
> (so if one fails, they will both fail)
>
> CAUTION: I've not actually tried this....


Verified.


>
> Tom
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