Michael Schuerig wrote: > On Friday 03 September 2010, Marnen Laibow-Koser wrote: >> > end >> >[...] >> model, all your Article data fields are really in the Version object. >> That's cumbersome, as you're finding out. > > The data model expresses what I need.
Maybe not. If you're finding it this difficult to use, I wonder. > Versions of the same article can > have different titles. It is likely that an older version of an article > is already published whereas the latest version is still in draft state. That doesn't really invalidate my earlier suggestion, I think, or at least a modification of it. > >> Not if you had done Article.all :joins => :versions in the first >> place. > > :joins with a symbol does an inner join. So use an SQL fragment if you need an outer join (which, on reflection, I suppose you do). > When there are several draft > versions, which one would I get? Answer: any. I want a specific one: the > latest. You can specify conditions and sort order on fields from joined tables. That should do the trick. > >> > Now, I know how to deal with this in SQL, with either a correlated >> > sub- select or an even more complicated left outer join. >> >> No way! A simple join should do it. Why do you think you need >> anything more complex? > > Before you claim that I'm wrong, please consider the possibility that > you don't understand what I'm trying to do. Thank you. I did consider that possibility. If you think I'm misunderstanding you, please tell me what I got wrong. > >> Stop overthinking. Stop fighting Rails. Stop trying to use such a >> poor data model. > > Stop being overly confident of your opinion when you don't understand > the situation. If you think my problem statement was not precise enough, > you could have asked for the details you thought were missing. Your problem statement was plenty precise -- precise enough for me to determine that you may have a modeling problem. Now, if you think there's something I don't understand, please tell me what it is and I'll modify my suggestions accordingly. > No need > to start out with bold and unwarranted statements. I don't believe anything I said was unwarranted. You came here looking for advice, right? I gave you the best advice I know how to. You may not like it, but please don't just make nebulous "you don't understand" statements without saying what you think I missed. The best advice is not always the advice you wanted to hear. > > Michael > > -- > Michael Schuerig > mailto:mich...@schuerig.de > http://www.schuerig.de/michael/ Best, -- Marnen Laibow-Koser http://www.marnen.org mar...@marnen.org Sent from my iPhone -- 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 rubyonrails-t...@googlegroups.com. To unsubscribe from this group, send email to rubyonrails-talk+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.
