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]> 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. >>> >> >> -- 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/CAGnRm4%2BQGNoDJXKqsov0P5PyjFanEJVynvxeAEEF2DyiYPnWsw%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
