On 7/10/07, psnively <[EMAIL PROTECTED]> wrote: > > > Actually what you suggest is *not* consistent with the rest of Elixir, > > as other relationship types all imply clearly if they point to one or > > several entities. > > That's a fair point, especially in the current HEAD where it's now > been made more clear that the "uselist" keyword argument is not > actually available for use.
That change was not meant to discourage using uselist. It was meant to make it possible to inherit from has_and_belongs_to_many and override uselist. > Personally, I would prefer that there not > be distinct statements for the different cardinalities and that the > use of "uselist" be left to the client. That is, you'd have "has," > "belongs_to," and "has_and_belongs_to," all nicely orthogonal, and > with "has" and "has_and_belongs_to" taking "uselist," which would be > nicely consistent with SQLAlchemy. > > But it's true that that would be a backward-incompatible change, so I > find the introduction of "has_and_belongs_to_one" an acceptable > compromise. > > > Honestly, your reluctance to include "has_and_belongs_to_one" in > Elixir seems to stem entirely from your belief that it is not > semantically different from has_one/belongs_to, which is false, as I > explained in my other reply. I hope, on that basis, that you'll > reconsider. Well, I finally understood what you meant. There is indeed a different semantic to it. Sorry for not getting it earlier... Besides, I forgot to tell you I made a change a few days ago which should allow you to do _almost_ what you'd like: now keywords passed to the relationship override those computed (or precoded) by Elixir. It means you should be able to declare your relationship as: has_and_belongs_to_many(..., uselist=False) As for the has_and_belongs_to_one, if you provide a patch (with documentation similar to the other relationship types), I'll include it. -- Gaëtan de Menten http://openhex.org --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "SQLElixir" 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/sqlelixir?hl=en -~----------~----~----~----~------~----~------~--~---
