[LRUG] Objects and on Hexagonal Rails

[Matthew Ford]

So we've been experimenting with this pattern and had some good success
with internal projects and are slowly introducing it in newer client
projects. I wouldn't go down this route if you're going to have developers
who are new to Rails on your project as it's yet another thing to learn,
but for seasoned developers it shouldn't be much of an issue. It's
certainly better than having a million and one callbacks in a single class.

Regards,
--
Matthew Ford

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On 23 July 2013 14:26, Tom Cartwright <tecartwright at gmail.com> wrote:

> Afternoon all,
>
> I am about to start a new rails project. I have read objects-on-rails and
> watched the Hexagonal rails talk and the techniques make a lot of sense.
> "Great!" thought I, I can build this new app with lots of those patterns
> (service layers, decorators, publish/subscribe (announcer/listener)
> pattern, logic living in a classes with a single responsibility etc).
> Everything will be easier to test and easier to change and develop. Winner.
> However, when I asked a colleague what they thought of these techniques,
> they had concerns about moving away from the rails conventions as it would
> take time to get developers up to speed with the techniques.
> One reason (and I can definitely see their point here) is that intentions
> can get obfuscated when using lots of loosely coupled objects and this can
> lead to confusion. Given lots of developers will be working on the app,
> onboard time is something I need to consider.
> One way to strike a balance would be to develop the app in the canonical
> fashion and then use these techniques as and when. E.g. Use the publish
> subscribe pattern when controllers/models start to get bloated. However, by
> that point it could be a bit too late and I might be reluctant to make
> changes that major. My integration tests would catch most stuff, but I will
> have to be confident that they will catch all the edge cases.
>
> So my question is: Should you strike a balance? If so, how do you strike a
> good balance? What has been your experience of introducing these techniques
> bit-by-bit?
> Thanks in advance for your brain thoughts.
>
> Tom
>
> --
> Tom Cartwright
> tecartwright at gmail.com Portfolio <http://www.tomcartwright.net> · GitHub<http://github.com/tomcartwrightuk>
>
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