tellesleandro Posts - Answer Overflow

tellesleandro

•Created by tellesleandro on 9/29/2023 in #support

How to use Ash.Transform?

Sorry, I know this forum is archived but I think here I can get help faster than on Elixir Forum. I'm posting here the same question I've just posted there. I need to shift the time_zone of some (DateTime) attributes from a resource. Ideally, I'd like to do it right after records are loaded from db. Is it possible? How?

4 replies

AEAsh Elixir

•Created by tellesleandro on 9/27/2023 in #support

Ash.Query getting started docs

I need some help to figure out how to translate Ecto queries into Ash ones. I've already read the docs, but I'm still stucked on simple "SELECT COUNT(*) FROM table" and "SELECT MIN(field) FROM table". Where do I find such explanation? Thanks in advance.

34 replies

AEAsh Elixir

•Created by tellesleandro on 9/26/2023 in #support

belongs_to does not add _id attributes do resource

The resource with attributes and relationships

attributes do
  uuid_primary_key :id
  create_timestamp :inserted_at
  update_timestamp :updated_at
  attribute :max_estadias_simultaneas, :integer do
    allow_nil? false
    default 1
  end
  attribute :valido_ate, :utc_datetime_usec
  attribute :chaves, {:array, :string} do
    allow_nil? false
    default []
  end
end

relationships do
  belongs_to :plano, Garagem.Operacional.Plano
  belongs_to :pessoa, Garagem.Operacional.Pessoa
end

attributes do
  uuid_primary_key :id
  create_timestamp :inserted_at
  update_timestamp :updated_at
  attribute :max_estadias_simultaneas, :integer do
    allow_nil? false
    default 1
  end
  attribute :valido_ate, :utc_datetime_usec
  attribute :chaves, {:array, :string} do
    allow_nil? false
    default []
  end
end

relationships do
  belongs_to :plano, Garagem.Operacional.Plano
  belongs_to :pessoa, Garagem.Operacional.Pessoa
end

does not have the attributes plano_id and pessoa_id. If I try to insert a record, the insert command does not have the foreign keys:

INSERT INTO "planos_contratos" ("chaves","id","inserted_at","max_estadias_simultaneas","updated_at","valido_ate") VALUES ($1,$2,$3,$4,$5,$6) [[], "a0424503-341b-476d-8522-926f600457c7", ~U[2023-09-26 04:33:13.460031Z], 1, ~U[2023-09-26 04:33:13.460031Z], ~U[2023-09-26 04:33:13.084948Z]]

INSERT INTO "planos_contratos" ("chaves","id","inserted_at","max_estadias_simultaneas","updated_at","valido_ate") VALUES ($1,$2,$3,$4,$5,$6) [[], "a0424503-341b-476d-8522-926f600457c7", ~U[2023-09-26 04:33:13.460031Z], 1, ~U[2023-09-26 04:33:13.460031Z], ~U[2023-09-26 04:33:13.084948Z]]

21 replies

AEAsh Elixir

•Created by tellesleandro on 9/25/2023 in #support

Complex types (postgres)

Is it possible to create (and use) complex types like this

CREATE DOMAIN dow AS integer
      CHECK(
        value BETWEEN 1 and 7
      );

CREATE TYPE week_range as (
        start_dow dow,
        start_time time,
        end_dow dow,
        end_time time,
        limit_in_seconds integer
      );

CREATE DOMAIN dow AS integer
      CHECK(
        value BETWEEN 1 and 7
      );

CREATE TYPE week_range as (
        start_dow dow,
        start_time time,
        end_dow dow,
        end_time time,
        limit_in_seconds integer
      );

22 replies

AEAsh Elixir

•Created by tellesleandro on 9/25/2023 in #support

Postgres' range types

What's the best approach for adding tstzrange type column to a resource?

8 replies

AEAsh Elixir

•Created by tellesleandro on 9/22/2023 in #support

Exception in transformer AshAuthentication.Strategy.Custom.Transformer

Hi there. I got an exception in transformer AshAuthentication.Strategy.Custom.Transformer when following the Authentication guide . Instead of User I set the resource name to Usuario.

== Compilation error in file lib/garagem/seguranca/resources/usuario.ex ==
** (RuntimeError) Exception in transformer AshAuthentication.Strategy.Custom.Transformer on Garagem.Seguranca.Usuario: 

expected a map, got: nil
    (elixir 1.15.4) lib/map.ex:486: Map.take/2
    (ash_authentication 3.11.14) lib/ash_authentication/strategies/password/transformer.ex:78: anonymous fn/2 in AshAuthentication.Strategy.Password.Transformer.transform/2
...

== Compilation error in file lib/garagem/seguranca/resources/usuario.ex ==
** (RuntimeError) Exception in transformer AshAuthentication.Strategy.Custom.Transformer on Garagem.Seguranca.Usuario: 

expected a map, got: nil
    (elixir 1.15.4) lib/map.ex:486: Map.take/2
    (ash_authentication 3.11.14) lib/ash_authentication/strategies/password/transformer.ex:78: anonymous fn/2 in AshAuthentication.Strategy.Password.Transformer.transform/2
...

mix.exs

...
{:ash, "~> 2.14"},
{:ash_postgres, "~> 1.3"},
{:ash_phoenix, "~> 1.2"},
{:ash_authentication, "~> 3.11"},
{:ash_authentication_phoenix, "~> 1.8"}
...

...
{:ash, "~> 2.14"},
{:ash_postgres, "~> 1.3"},
{:ash_phoenix, "~> 1.2"},
{:ash_authentication, "~> 3.11"},
{:ash_authentication_phoenix, "~> 1.8"}
...

Resource file

defmodule Garagem.Seguranca.Usuario do
  use Ash.Resource,
    data_layer: AshPostgres.DataLayer,
    extensions: [AshAuthentication]

  attributes do
    uuid_primary_key :id
    attribute :email, :ci_string, allow_nil?: false
    attribute :hashed_password, :string, allow_nil?: false, sensitive?: true
  end

  authentication do
    api Garagem.Seguranca

    strategies do
      password :password do
        identity_field :email
        sign_in_tokens_enabled? true
      end
    end

    tokens do
      enabled? true
      token_resource Garagem.Seguranca.Token

      signing_secret Garagem.Seguranca.Secrets
    end
  end

  postgres do
    table "usuarios"
    repo Garagem.Repo
  end

  identities do
    identity :unique_email, [:email]
  end
end

defmodule Garagem.Seguranca.Usuario do
  use Ash.Resource,
    data_layer: AshPostgres.DataLayer,
    extensions: [AshAuthentication]

  attributes do
    uuid_primary_key :id
    attribute :email, :ci_string, allow_nil?: false
    attribute :hashed_password, :string, allow_nil?: false, sensitive?: true
  end

  authentication do
    api Garagem.Seguranca

    strategies do
      password :password do
        identity_field :email
        sign_in_tokens_enabled? true
      end
    end

    tokens do
      enabled? true
      token_resource Garagem.Seguranca.Token

      signing_secret Garagem.Seguranca.Secrets
    end
  end

  postgres do
    table "usuarios"
    repo Garagem.Repo
  end

  identities do
    identity :unique_email, [:email]
  end
end

The resettable property of the struct strategy is nil at ash_authentication/strategies/password/transformer.ex:77. I tried to set the property to a function, as shown in the docs (https://hexdocs.pm/ash_authentication/AshAuthentication.Sender.html), but I still get the error. I hope someone can help me. Thanks

38 replies

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