My bad, this is rc-5. Op donderdag 26 mei 2016 20:19:34 UTC+2 schreef José Valim: > > Which RC version? I believe this may have been fixed on more recent RCs. > > > > *José Valim* > www.plataformatec.com.br > Skype: jv.ptec > Founder and Director of R&D > > On Thu, May 26, 2016 at 8:09 PM, <[email protected] <javascript:>> wrote: > >> This is Ecto 2.0.0-rc, through phoenix_ecto 3.0.0-rc.0 >> >> Op donderdag 26 mei 2016 19:51:44 UTC+2 schreef José Valim: >>> >>> Which Ecto version are you using? >>> >>> *José Valim* >>> www.plataformatec.com.br >>> Skype: jv.ptec >>> Founder and Director of R&D >>> >>> On Thu, May 26, 2016 at 6:30 PM, <[email protected]> wrote: >>> >>>> So I have been digging a little deeper and Ecto is issuing the >>>> following query: >>>> >>>> *SELECT r0."id", *snip*, o1."offer_id" FROM "rates" AS r0 INNER JOIN >>>> "offers_rates" AS o1 ON o1."offer_id" = ANY($1) WHERE (o1."rate_id" = >>>> r0."id") ORDER BY o1."offer_id" [[<<163, 3, 242, 94, 74, 2, 77, 110, 159, >>>> 78, 123, 64, 97, 42, 5, 33>>]]* >>>> >>>> >>>> This comes up as an empty association in my code. When I do the >>>> following query in psql however, I do get the result I expect: >>>> >>>> *SELECT * FROM rates INNER JOIN offers_rates ON >>>> offers_rates.offer_id='a303f25e-4a02-4d6e-9f4e-7b40612a0521' WHERE >>>> offers_rates.rate_id = rates.id <http://rates.id>; * >>>> >>>> >>>> Does this offer some more insight? >>>> >>>> Op donderdag 26 mei 2016 18:09:47 UTC+2 schreef [email protected]: >>>> >>>>> Hi José, >>>>> >>>>> Thanks for the fast response. That doesn't seem to do it however. If I >>>>> do not preload anything, I get an error message saying that the offers >>>>> are >>>>> not preloaded. If I preload the offers, it says the rates are not >>>>> preloaded, and if I preload everything, with force set to true, the rates >>>>> are still empty. Is there anything else I can try? >>>>> >>>>> Op donderdag 26 mei 2016 17:07:36 UTC+2 schreef José Valim: >>>>>> >>>>>> Try: >>>>>> >>>>>> *offers = Repo.preload(shipment, [offers: :rates], force: true)* >>>>>> >>>>>> If the association was already loaded, we won't load over it. >>>>>> >>>>>> *José Valim* >>>>>> www.plataformatec.com.br >>>>>> Skype: jv.ptec >>>>>> Founder and Director of R&D >>>>>> >>>>>> On Thu, May 26, 2016 at 5:05 PM, <[email protected]> wrote: >>>>>> >>>>>>> Hello, >>>>>>> >>>>>>> I have a many-to-many relationship defined as follows: >>>>>>> >>>>>>> * schema "rates" do* >>>>>>> * many_to_many :offers, Offer, join_through: "offers_rates"* >>>>>>> * end* >>>>>>> >>>>>>> >>>>>>> * schema "offers" do* >>>>>>> * many_to_many :rates, Rate, join_through: "offers_rates"* >>>>>>> * end * >>>>>>> >>>>>>> >>>>>>> The offers_rates table is simply a table that has a offer_id column, >>>>>>> and a rate_id column. I am saving records as follows: >>>>>>> >>>>>>> * Enum.map rates, fn (rate) ->* >>>>>>> * Offer.changeset(%Offer{rates: [rate]}, %{shipment_id: >>>>>>> rate.shipment_id, percentage: 1.05})* >>>>>>> * |> Repo.insert!()* >>>>>>> * end * >>>>>>> >>>>>>> >>>>>>> For every rate, this is generating an offer. I am association the >>>>>>> rates with the offer in the changeset. This seems to work as I can see >>>>>>> the >>>>>>> join table being filled properly. When I try to fetch them later, the >>>>>>> association is empty however: >>>>>>> >>>>>>> *offers = Repo.preload(shipment, offers: :rates)* >>>>>>> >>>>>>> >>>>>>> * %Offer{rates: []} * >>>>>>> >>>>>>> >>>>>>> Are these the proper ways of association records and fetching them >>>>>>> from the database again? Any push in the right direction is greatly >>>>>>> appreciated. >>>>>>> >>>>>>> Thanks! >>>>>>> >>>>>>> -- >>>>>>> You received this message because you are subscribed to the Google >>>>>>> Groups "elixir-lang-talk" group. >>>>>>> To unsubscribe from this group and stop receiving emails from it, >>>>>>> send an email to [email protected]. >>>>>>> To view this discussion on the web visit >>>>>>> https://groups.google.com/d/msgid/elixir-lang-talk/90e0e96e-a6ca-4111-b4cc-e9d180b99b6b%40googlegroups.com >>>>>>> >>>>>>> <https://groups.google.com/d/msgid/elixir-lang-talk/90e0e96e-a6ca-4111-b4cc-e9d180b99b6b%40googlegroups.com?utm_medium=email&utm_source=footer> >>>>>>> . >>>>>>> For more options, visit https://groups.google.com/d/optout. >>>>>>> >>>>>> >>>>>> -- >>>> You received this message because you are subscribed to the Google >>>> Groups "elixir-lang-talk" group. >>>> To unsubscribe from this group and stop receiving emails from it, send >>>> an email to [email protected]. >>>> To view this discussion on the web visit >>>> https://groups.google.com/d/msgid/elixir-lang-talk/589094f3-2694-4b15-9d39-03d8e4869682%40googlegroups.com >>>> >>>> <https://groups.google.com/d/msgid/elixir-lang-talk/589094f3-2694-4b15-9d39-03d8e4869682%40googlegroups.com?utm_medium=email&utm_source=footer> >>>> . >>>> >>>> For more options, visit https://groups.google.com/d/optout. >>>> >>> >>> >
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