[Catalyst] Automatic passing of objects to DBIx::Class

Ben van Staveren benvanstaveren at gmail.com
Sun Feb 28 07:21:16 GMT 2010

I've ran into the same issue, but solved it in a bit of a hackish =

fashion. I went the route of the schema objects knowing nothing about =

the outside world, just themselves, and their relations with other =

schema objects.

On top of this sits a separate set of objects that contain all the logic =

necessary to make things "work", using copious amounts of autoload =

voodoo. These objects can basically be used from any other app, be it =

Catalyst or some command line tool, and don't really have to know much =

else. For Catalyst I've got a custom model object that will return the =

appropriate "logic" object, whereas in offline tools they're used directly.

Sort of solves the problem in a cleaner way if you ask me.

Ido Perlmuter wrote:
> Hi everyone.
> I've been racking my brain trying to find a way to automatically pass =

> an object, for the matter the Catalyst::Request object, to DBIx::Class =

> methods. I cannot and will not pass it myself every time I call a =

> method in my schema. While I do believe the model and the app should =

> be completely separated, further information must flow between the two.
> For example, I need to setup an administrative usage log for my app. =

> Whenever a user with proper privileges invokes a schema method that =

> creates, edits or deletes information from the database, I want that =

> action to be automatically recorded in the usage log, with details =

> such as the user ID and the user IP. I'm facing two difficulties: on =

> one hand I believe this should be automatically done by the schema (so =

> recording into the usage log will not be made from the app, but from =

> the schema), but that means I need to pass the
> context object (or the Request object) to every schema method I =

> invoke; on the other hand, if I let the app handle recording into the =

> usage log, my schema loses power. What if I want to write an API to my =

> program in several programming languages, should they do the same too?
> So for a while now I've been trying to find a way to automatically =

> pass objects to the schema. Maybe if DBIx::Class was Moose-based I =

> would have already found one using method modifiers.
> Any thoughts will be appreciated.
> Thanks,
> Ido Perlmuter.
> ------------------------------------------------------------------------
> _______________________________________________
> List: Catalyst at lists.scsys.co.uk
> Listinfo: http://lists.scsys.co.uk/cgi-bin/mailman/listinfo/catalyst
> Searchable archive: http://www.mail-archive.com/catalyst@lists.scsys.co.u=
> Dev site: http://dev.catalyst.perl.org/
>   =

-- =

Ben van Staveren
phone: +62 81 70777529
email: benvanstaveren at gmail.com

-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.scsys.co.uk/pipermail/catalyst/attachments/20100228/4a1f3=

More information about the Catalyst mailing list