How to setup has_one relationship

Elixir Framework Forums Ash Forum
,
1

Where User has_one App_Setting and configured as follows, I get the error message
schema does not have the field :user_id used by association :user, please set the :references option accordingly. What am I missing?

user.ex

    has_one :app_setting, MyApp.Accounts.AppSetting

app_setting.ex

  postgres do
    table "app_settings"
    repo MyApp.Repo

    references do
      reference(:user, on_delete: :delete)
    end
  end

  relationships do
    belongs_to :user, MyApp.Accounts.User 
  end

Thanks!

Full stacktrace:

** (ArgumentError) schema does not have the field :user_id used by association :user, please set the :references option accordingly
    (ecto 3.10.3) lib/ecto/association.ex:696: Ecto.Association.Has.struct/3
    (ecto 3.10.3) lib/ecto/schema.ex:1891: Ecto.Schema.association/5
    (ecto 3.10.3) lib/ecto/schema.ex:2044: Ecto.Schema.__has_one__/4
    myapp/accounts/resources/app_setting.ex:1: (file)
    myapp/lib/myapp/accounts/resources/app_setting.ex:1: (file)
    (stdlib 5.0.2) erl_eval.erl:750: :erl_eval.do_apply/7
    (stdlib 5.0.2) erl_eval.erl:136: :erl_eval.exprs/6
    (elixir 1.15.5) lib/enum.ex:2510: Enum."-reduce/3-lists^foldl/2-0-"/3
    (stdlib 5.0.2) erl_eval.erl:750: :erl_eval.do_apply/7
    (stdlib 5.0.2) erl_eval.erl:136: :erl_eval.exprs/6
    (stdlib 5.0.2) erl_eval.erl:1052: :erl_eval.try_clauses/10
    (stdlib 5.0.2) erl_eval.erl:136: :erl_eval.exprs/6
    (stdlib 5.0.2) erl_eval.erl:282: :erl_eval.expr/6
    (stdlib 5.0.2) erl_eval.erl:283: :erl_eval.expr/6
    (spark 1.1.40) myapp/accounts/resources/app_setting.ex:1: Spark.Dsl.__before_compile__/1
2

Hmm…something looks very strange here. If you comment out the has_one relationship does your application compile as expected? I’m wondering if some other error is causing this somehow.

3

There must have been some hiccups somewhere. The error is gone now without me doing anything. Sorry for the false alarm.

1 Like