harry Posts - Answer Overflow

harry

•Created by harry on 7/1/2023 in #support

relationship required

Hey! Whats the best way to fix this error?

     %Ash.Error.Changes.Required{
        field: :account,
        type: :relationship,
        resource: nil,
        changeset: nil,
        query: nil,
        error_context: [],
        vars: [],
        path: [],
        stacktrace: #Stacktrace<>,
        class: :invalid
      }

     %Ash.Error.Changes.Required{
        field: :account,
        type: :relationship,
        resource: nil,
        changeset: nil,
        query: nil,
        error_context: [],
        vars: [],
        path: [],
        stacktrace: #Stacktrace<>,
        class: :invalid
      }

I already tried including account_id and account in the changeset, this is what I have currently

                    Vehicle
                   |> Ash.Changeset.for_create(
                     :create,
                     %{
                       account: account,
                       ....
                     }
                   )
                   |> AshApi.create([])

                    Vehicle
                   |> Ash.Changeset.for_create(
                     :create,
                     %{
                       account: account,
                       ....
                     }
                   )
                   |> AshApi.create([])

4 replies

AEAsh Elixir

•Created by harry on 6/5/2023 in #support

Querying JSON fields

I have this query,

SELECT *
FROM users
WHERE settings->>'reminder_day' = 'Monday' -- Replace 'Monday' with your specific day
  AND (settings->>'reminder_enabled')::boolean = true
  AND (settings->>'reminder_time')::time BETWEEN '09:00'::time AND ('09:00'::time + INTERVAL '1 hour');

SELECT *
FROM users
WHERE settings->>'reminder_day' = 'Monday' -- Replace 'Monday' with your specific day
  AND (settings->>'reminder_enabled')::boolean = true
  AND (settings->>'reminder_time')::time BETWEEN '09:00'::time AND ('09:00'::time + INTERVAL '1 hour');

and I'd like to convert it to an Ash query - any suggestions?

# User.ex
    attribute :settings, Proj.Resources.Accounts.UserSettings do
      allow_nil?(false)
       # TODO, can this be improved?!
      default(fn -> %Proj.Resources.Accounts.UserSettings{} end)
    end

# UserSettings.ex
defmodule Proj.Resources.Accounts.UserSettings do
  use Ash.Resource,
    data_layer: :embedded

  attributes do
    attribute :time_zone, :string do
      allow_nil?(false)
      default("Europe/London")
    end

    attribute :reminder_enabled, :boolean do
      allow_nil?(false)
      default(true)
    end

    attribute :reminder_time, :string do
      allow_nil?(false)
      default("09:00")
    end

    attribute :reminder_day, :string do
      allow_nil?(false)
      default("Monday")
    end
  end
end

# User.ex
    attribute :settings, Proj.Resources.Accounts.UserSettings do
      allow_nil?(false)
       # TODO, can this be improved?!
      default(fn -> %Proj.Resources.Accounts.UserSettings{} end)
    end

# UserSettings.ex
defmodule Proj.Resources.Accounts.UserSettings do
  use Ash.Resource,
    data_layer: :embedded

  attributes do
    attribute :time_zone, :string do
      allow_nil?(false)
      default("Europe/London")
    end

    attribute :reminder_enabled, :boolean do
      allow_nil?(false)
      default(true)
    end

    attribute :reminder_time, :string do
      allow_nil?(false)
      default("09:00")
    end

    attribute :reminder_day, :string do
      allow_nil?(false)
      default("Monday")
    end
  end
end

4 replies

AEAsh Elixir

•Created by harry on 5/1/2023 in #support

`many_to_many` error

    ** (RuntimeError) Resource `SwiftEco.Resources.Accounts.UsersCompanies` is not in registry `SwiftEco.Resources.Companies` for autogenerated join relationship: `:users_join_assoc`

Relationship was generated by the `many_to_many` relationship `:users`

If the `through` resource `SwiftEco.Resources.Accounts.UsersCompanies` is not accepted by the same
api as the destination resource `SwiftEco.Resources.Accounts.User`,
then you must define that relationship manually. To define it manually, add the following to your
relationships:

    has_many :users_join_assoc, SwiftEco.Resources.Accounts.UsersCompanies do
      # configure the relationship attributes
      ...
    end

You can use a name other than `:users_join_assoc`, but if you do, make sure to
add that to `:users`, i.e

    many_to_many :users_join_assoc, SwiftEco.Resources.Accounts.UsersCompanies do
      ...
      join_relationship_name :your_new_name
    end

    ** (RuntimeError) Resource `SwiftEco.Resources.Accounts.UsersCompanies` is not in registry `SwiftEco.Resources.Companies` for autogenerated join relationship: `:users_join_assoc`

Relationship was generated by the `many_to_many` relationship `:users`

If the `through` resource `SwiftEco.Resources.Accounts.UsersCompanies` is not accepted by the same
api as the destination resource `SwiftEco.Resources.Accounts.User`,
then you must define that relationship manually. To define it manually, add the following to your
relationships:

    has_many :users_join_assoc, SwiftEco.Resources.Accounts.UsersCompanies do
      # configure the relationship attributes
      ...
    end

You can use a name other than `:users_join_assoc`, but if you do, make sure to
add that to `:users`, i.e

    many_to_many :users_join_assoc, SwiftEco.Resources.Accounts.UsersCompanies do
      ...
      join_relationship_name :your_new_name
    end

Happy to share any code needed just not sure what the actual error means! It was working before and I have just started work on tidying up the codebase and this is now an error that has appeared

11 replies

AEAsh Elixir

•Created by harry on 3/4/2023 in #support

How to run something in the background after action?

Hi, I tried using notifiers but it looks like they block. Is there a way to run something in the background that is triggered by an actions e.g. user_created, etc

6 replies

AEAsh Elixir

•Created by harry on 2/20/2023 in #support

Insert into Database without Form

Is there a way to insert into the database a new entry without a form. i.e. a user does a form action which creates an entity and then I need to update the user to attach them to that new entity.

13 replies

AEAsh Elixir

•Created by harry on 2/16/2023 in #support

Does Ash Auth support Google/Apple OAuth?

I think the title sums it up 😄

6 replies

AEAsh Elixir

•Created by harry on 1/28/2023 in #support

Autogenerated unique short IDs

What is the best way in Ash to generate short IDs e.g. invite codes that are unique and will keep generating till it gets a unique one? Actions?

18 replies

AEAsh Elixir

•Created by harry on 1/28/2023 in #support

Cache & Query Time

Does AshPostgres cache queries?

5 replies

AEAsh Elixir

•Created by harry on 1/22/2023 in #support

Multi-node deployments

How does ash work when deployed with multiple nodes e.g. across AWS regions are the notifiers only called on the node where it occurs or are they distributed?

3 replies

AEAsh Elixir

•Created by harry on 1/21/2023 in #support

Sending emails with Ash

Does Ash have a wrapper for Sending emails or a recommended way to send transactional emails e.g. Confirm Account?

24 replies

AEAsh Elixir

•Created by harry on 1/21/2023 in #support

Cannot use `^variable` outside of match clauses

This error disappears when you add import Ash.Query but then Elixir complains that it is an unneeded import, is there a better way around this?

6 replies

AEAsh Elixir

•Created by harry on 1/21/2023 in #support

How to manage `belongs_to` relations

I have this action in my resource

    create :new_token do
      accept([:nickname, :scopes, :system, :expires_at])

      argument :user, Project.Resources.Accounts.User do
        allow_nil?(false)
      end

      change(manage_relationship(:user, on_match: :relate))

      # ...
  end

    create :new_token do
      accept([:nickname, :scopes, :system, :expires_at])

      argument :user, Project.Resources.Accounts.User do
        allow_nil?(false)
      end

      change(manage_relationship(:user, on_match: :relate))

      # ...
  end

but when I create a new token, the user and user_id are nil

           |> Ash.Changeset.for_create(:new_token, %{
             user: user,
             system: true,
             scopes: ["read", "write"],
             expires_at:
               DateTime.utc_now()
               |> DateTime.add(@max_age, :second)
               |> DateTime.truncate(:second)
           })

           |> Ash.Changeset.for_create(:new_token, %{
             user: user,
             system: true,
             scopes: ["read", "write"],
             expires_at:
               DateTime.utc_now()
               |> DateTime.add(@max_age, :second)
               |> DateTime.truncate(:second)
           })

11 replies

AEAsh Elixir

•Created by harry on 1/21/2023 in #support

`AshPhoenix.Form` not applying changes

I am using forms as below:

  def new(conn, _params) do
    form = AshPhoenix.Form.for_create(Project.User, :new_account, api: Project.Accounts, as: "user")
    render(conn, "new.html", changeset: form)
  end

  def create(conn, %{"user" => user_params} = _params) do
    case AshPhoenix.Form.for_create(Project.User, :new_account, api: Project.Accounts, as: "user")
         |> AshPhoenix.Form.submit(params: user_params) do
      {:ok, user} ->
        conn
        |> put_flash(:info, "User created successfully.")
        |> Project.UserAuth.log_in_user(user)

      {:error, changeset} ->
        render(conn, "new.html", changeset: changeset)
    end
  end

  def new(conn, _params) do
    form = AshPhoenix.Form.for_create(Project.User, :new_account, api: Project.Accounts, as: "user")
    render(conn, "new.html", changeset: form)
  end

  def create(conn, %{"user" => user_params} = _params) do
    case AshPhoenix.Form.for_create(Project.User, :new_account, api: Project.Accounts, as: "user")
         |> AshPhoenix.Form.submit(params: user_params) do
      {:ok, user} ->
        conn
        |> put_flash(:info, "User created successfully.")
        |> Project.UserAuth.log_in_user(user)

      {:error, changeset} ->
        render(conn, "new.html", changeset: changeset)
    end
  end

And the action :new_account is as follows:

    create :new_account do
      accept([:email, :password])

      change(
        {Project.Changes.MaybeHashSecret, changeset_key: :new_password, resource_key: :password}
      )
    end

    create :new_account do
      accept([:email, :password])

      change(
        {Project.Changes.MaybeHashSecret, changeset_key: :new_password, resource_key: :password}
      )
    end

I would expect on submit that my change is hashing the secret however it isn't and the change is running when the form is created. The change is also below

  def change(changeset, opts, _) do
    changeset_key = Keyword.get(opts, :changeset_key, @default_changeset_key)
    resource_key = Keyword.get(opts, :resource_key, @default_resource_key)

    # TODO get working, not hashing secrets
    with secret <- Ash.Changeset.get_argument_or_attribute(changeset, changeset_key),
         true <- is_binary(secret),
         hash <- Argon2.hash_pwd_salt(secret) do
      Ash.Changeset.force_change_attribute(changeset, resource_key, hash)
    else
      _ -> changeset
    end
  end

  def change(changeset, opts, _) do
    changeset_key = Keyword.get(opts, :changeset_key, @default_changeset_key)
    resource_key = Keyword.get(opts, :resource_key, @default_resource_key)

    # TODO get working, not hashing secrets
    with secret <- Ash.Changeset.get_argument_or_attribute(changeset, changeset_key),
         true <- is_binary(secret),
         hash <- Argon2.hash_pwd_salt(secret) do
      Ash.Changeset.force_change_attribute(changeset, resource_key, hash)
    else
      _ -> changeset
    end
  end

Any ideas?

27 replies

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