Greg Donald wrote: [...] > > Umm yeah, well.. I work in genetics research and I can tell you I have > this exact scenario _all the time_.
And you use this sort of data model for it? > Genetic pathways repeat > throughout any genome, human or other. Your assumption that > everyone's data is like your own is illogical. I'm not making any assumptions about other people's data. I am merely talking about what can and can't be modeled effectively with a particular data structure. > > And like I was saying, to avoid the problem I use a join model. > Storing an extra integer column and having an extra class in play > costs very little when compared to the headaches of having to look up > join table records using multiple keys and include limit statements. > It's so much easier to just say Foo.delete( 18176236 ). For your use case, this probably makes sense. For a simple habtm where these features are not needed, I believe it is overkill. > > > -- > Greg Donald > http://destiney.com/ Best, -- Marnen Laibow-Koser http://www.marnen.org [email protected] -- Posted via http://www.ruby-forum.com/. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~----------~----~----~----~------~----~------~--~---
