On 5 Dec 2012, at 07:33, Chris Withers <ch...@python.org> wrote: > On 04/12/2012 17:46, Menno Smits wrote: >> On 2012-12-04 14:46, Jonathan Hartley wrote: >> >>> I haven't, yet, but I'm thinking of refactoring a vertical slice of our >>> monster Django app into this style, and I'd love to hear if you think >>> it's crazy / brilliant / obvious / old-hat, etc. >> >> Since you mentioned this a few weeks back, I've been thinking about this >> approach a lot and doing a fair bit of background reading on the idea. I >> think it falls in to the brilliantly-obvious category, at least for any >> app of significant size. I plan to start using these ideas for my next >> big work project (not Django however). Previously, I've tended towards >> less flexible, harder-to-test, layered architectures. > > The biggest concern I have with this approach is that it appears to preclude > taking advantage of any features of your storage layer. If your business > objects have to not know or care about their underlying storage, how do you > take advantage of nice relational queries, stand alone text indexing service > or other specific features of the architecture you've chosen?
I guess you still need to provide an abstraction for these features, even if only one backend supports the abstraction. > > There's also the risk that you end up testing each bit (business, views, > storage) in isolation and never get around to doing the automated integration > testing required to ensure artifacts of implementation (*cough* bugs) don't > cause problems across those boundaries... Well, you need integration / acceptance / functional / end to end tests *anyway*. Michael > > That said, I'd love to see a project that's a good example of this, are there > any around online in Python? The closest thing I can think of is the move to > the component architecture that Zope did from v2 to v3; architecturally > brilliant but actually killed off the platform... > > cheers, > > Chris > > -- > Simplistix - Content Management, Batch Processing & Python Consulting > - http://www.simplistix.co.uk > _______________________________________________ > python-uk mailing list > python-uk@python.org > http://mail.python.org/mailman/listinfo/python-uk > -- http://www.voidspace.org.uk/ May you do good and not evil May you find forgiveness for yourself and forgive others May you share freely, never taking more than you give. -- the sqlite blessing http://www.sqlite.org/different.html _______________________________________________ python-uk mailing list python-uk@python.org http://mail.python.org/mailman/listinfo/python-uk
