Ash Framework•4mo ago

Error Loading 3 `no_attributes?: true` nested relationships

I'm running into an error that's very similar to one I encountered before. The structure is Grandpappy > has_many > Parent > has_many > Child > has_many Toy Grandparent also has_many :grandchild_toys via a no_attributes?: true relationship:

      has_many :grandchild_toys, ErrorDemo.Demo.Toy do
        no_attributes? true
        public? true
        filter expr(child.parent.grandpappy_id == parent(id))
      end

      has_many :grandchild_toys, ErrorDemo.Demo.Toy do
        no_attributes? true
        public? true
        filter expr(child.parent.grandpappy_id == parent(id))
      end

When I add three calculations (:foo, :bar and :baz) to Child, and all three need to load the grandchild toys like so...

    @impl true
    def load(_, _, _) do
      [
        parent: [grandpappy: [:grandchild_toys]]
      ]
    end

    @impl true
    def load(_, _, _) do
      [
        parent: [grandpappy: [:grandchild_toys]]
      ]
    end

... the following code results in an exception:

    child |> Ash.load([:foo, :bar, :baz])

    # raises: 

    %Ash.Error.Unknown.UnknownError{
      error: "** (KeyError) key :grandpappy not found in: %ErrorDemo.Demo.Child
     ...
    }

    child |> Ash.load([:foo, :bar, :baz])

    # raises: 

    %Ash.Error.Unknown.UnknownError{
      error: "** (KeyError) key :grandpappy not found in: %ErrorDemo.Demo.Child
     ...
    }

However, the following code works:

  child = child |> Ash.load!([:foo, :bar]) |> Ash.load!(:baz)

  child = child |> Ash.load!([:foo, :bar]) |> Ash.load!(:baz)

So it only seems to happen when loading all three in one go. https://github.com/enoonan/error_demo

GitHub

GitHub - enoonan/error_demo: Demos an error I'm getting loading com...

Demos an error I'm getting loading complex relationships / calculations - enoonan/error_demo

6 Replies

ZachDaniel•4mo ago

latest versions of everything?

⿻ eileenOP•4mo ago

Yup Using Elixir 1.18.2 and Erlang/OTP 27.

  defp deps do
    [
      {:sourceror, "~> 1.8", only: [:dev, :test]},
      {:ash_postgres, "~> 2.0"},
      {:ash, "~> 3.0"},
      {:igniter, "~> 0.6", only: [:dev, :test]}
    ]
  end

  defp deps do
    [
      {:sourceror, "~> 1.8", only: [:dev, :test]},
      {:ash_postgres, "~> 2.0"},
      {:ash, "~> 3.0"},
      {:igniter, "~> 0.6", only: [:dev, :test]}
    ]
  end

From mix.lock:

%{
  "ash": {:hex, :ash, "3.5.17", ...},
  "ash_postgres": {:hex, :ash_postgres, "2.6.6", ...
  ...
}

%{
  "ash": {:hex, :ash, "3.5.17", ...},
  "ash_postgres": {:hex, :ash_postgres, "2.6.6", ...
  ...
}

The readme on the github repo is a bit more fleshed out

ZachDaniel•4mo ago

😠 my least favorite kind of bug lol

⿻ eileenOP•4mo ago

Sorryyyyyyyyy

ZachDaniel•4mo ago

please open an issue on Ash and include that reproduction

⿻ eileenOP•4mo ago

Oky doke Done!

Gaming

Programming

Error Loading 3 `no_attributes?: true` nested relationships

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