[Dbix-class] Moose

[Leandro Hermida]

On Sun, Jul 18, 2010 at 7:49 PM, Peter Rabbitson
<rabbit+dbic at rabbit.us<rabbit%2Bdbic at rabbit.us>
> wrote:

> On Sun, Jul 18, 2010 at 02:40:47PM +0200, Leandro Hermida wrote:
> > very good points and makes a lot of sense.  If I can ask a more general
> > question then, why do ORMs exist in the first place and why are they so
> > popular vs using a object persistence mechanism?  There must be some
> serious
> > advantage to using them.
> >
>
> Because there yet does not exist a persistent object store, that can be
> asked to fetch "all objects which have related objects whose attribute X
> is Y", and which will do so by *transparrently* using native SQL methods
> (namely GROUP BY over a joined resultset). Matt Trout is working on the
> foundation of just such a "mapper", but this is a very very hard problem
> to get right, so progress is slow.
>

I know this might sound sacrilegious, but established frameworks like
Hibernate have solved this problem and the code is freely available, I think
it would be easier to see how such complex ORM details are done there as a
starting point and then go from there other than starting from completely
scratch?
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