Ash Framework•3mo ago

Is it possible to list and select the relationship in the Admin resource creation form?

For example: I'd like to list all registered users and select one to associate with the Pet I'm creating. Is there something ready to do this?

11 Replies

schnady•3mo ago

you have pet belongs_to user and user has_many pets ?

JVMartynsOP•3mo ago

Please ignore the fact that they are in different databases.

schnady•3mo ago

Pet create action in resource

  actions do

    create :create do
      accept [:user_id, :age, :name]
    end

  actions do

    create :create do
      accept [:user_id, :age, :name]
    end

in your domain

    resource(MyApp.Ash.Pets) do
      define(:create_pet, action: :create)

    resource(MyApp.Ash.Pets) do
      define(:create_pet, action: :create)

and

  forms do
    form :create_pet, args: [:user_id]

  forms do
    form :create_pet, args: [:user_id]

JVMartynsOP•3mo ago

defmodule JoseValimIsMyHero.Accounts.User do
  use Ash.Resource,
    domain: JoseValimIsMyHero.Accounts,
    data_layer: AshPostgres.DataLayer,
    extensions: [AshGraphql.Resource, AshJsonApi.Resource, AshAdmin.Resource]

  resource do
    base_filter expr(is_nil(deleted_at))
  end

  postgres do
    table "users"
    repo JoseValimIsMyHero.Repo.Postgres
    base_filter_sql "created_at IS NULL"
  end

  graphql do
    type :user
  end

  json_api do
    type "user"
  end

  actions do
    defaults [:read]

    read :list do
      prepare(build(sort: :email))

      pagination do
        required?(false)
        offset?(true)
        keyset?(true)
        countable(true)
      end
    end

    create :create do
      accept [:name, :email, :password]
    end

    update :update do
      accept [:name, :email, :password]
    end

    destroy :destroy do
      change set_attribute(:deleted_at, DateTime.utc_now())
    end
  end

  attributes do
    uuid_primary_key :id
    attribute :name, :string, public?: true

    attribute :email, :string do
      allow_nil? false
      public? true

      constraints match: ~r/^[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]{2,}$/
    end

    attribute :password, :string do
      allow_nil? false
      sensitive? true

      constraints min_length: 8, max_length: 100
    end

    attribute :deleted_at, :datetime, allow_nil?: true
    create_timestamp :created_at, public?: true
    update_timestamp :updated_at, public?: true
  end

  identities do
    # Allow only one user with the same email
    identity :email, [:email]
  end

  relationships do
    has_many :pets, JoseValimIsMyHero.Animals.Pet
  end
end

defmodule JoseValimIsMyHero.Accounts.User do
  use Ash.Resource,
    domain: JoseValimIsMyHero.Accounts,
    data_layer: AshPostgres.DataLayer,
    extensions: [AshGraphql.Resource, AshJsonApi.Resource, AshAdmin.Resource]

  resource do
    base_filter expr(is_nil(deleted_at))
  end

  postgres do
    table "users"
    repo JoseValimIsMyHero.Repo.Postgres
    base_filter_sql "created_at IS NULL"
  end

  graphql do
    type :user
  end

  json_api do
    type "user"
  end

  actions do
    defaults [:read]

    read :list do
      prepare(build(sort: :email))

      pagination do
        required?(false)
        offset?(true)
        keyset?(true)
        countable(true)
      end
    end

    create :create do
      accept [:name, :email, :password]
    end

    update :update do
      accept [:name, :email, :password]
    end

    destroy :destroy do
      change set_attribute(:deleted_at, DateTime.utc_now())
    end
  end

  attributes do
    uuid_primary_key :id
    attribute :name, :string, public?: true

    attribute :email, :string do
      allow_nil? false
      public? true

      constraints match: ~r/^[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]{2,}$/
    end

    attribute :password, :string do
      allow_nil? false
      sensitive? true

      constraints min_length: 8, max_length: 100
    end

    attribute :deleted_at, :datetime, allow_nil?: true
    create_timestamp :created_at, public?: true
    update_timestamp :updated_at, public?: true
  end

  identities do
    # Allow only one user with the same email
    identity :email, [:email]
  end

  relationships do
    has_many :pets, JoseValimIsMyHero.Animals.Pet
  end
end

defmodule JoseValimIsMyHero.Animals.Pet do
  use Ash.Resource,
    domain: JoseValimIsMyHero.Animals,
    data_layer: AshSqlite.DataLayer,
    extensions: [AshGraphql.Resource, AshJsonApi.Resource, AshAdmin.Resource]

  sqlite do
    table "pets"
    repo JoseValimIsMyHero.Repo.Sqlite
  end

  graphql do
    type :pet
  end

  json_api do
    type "pet"
  end

  actions do
    defaults [:read, :destroy]

    create :create do
      accept [:name, :age, :user_id]
    end

    update :update do
      accept [:name, :age, :user_id]
    end
  end

  attributes do
    uuid_primary_key :id
    attribute :name, :string, allow_nil?: false

    attribute :age, :integer do
      constraints min: 0
    end
  end

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

defmodule JoseValimIsMyHero.Animals.Pet do
  use Ash.Resource,
    domain: JoseValimIsMyHero.Animals,
    data_layer: AshSqlite.DataLayer,
    extensions: [AshGraphql.Resource, AshJsonApi.Resource, AshAdmin.Resource]

  sqlite do
    table "pets"
    repo JoseValimIsMyHero.Repo.Sqlite
  end

  graphql do
    type :pet
  end

  json_api do
    type "pet"
  end

  actions do
    defaults [:read, :destroy]

    create :create do
      accept [:name, :age, :user_id]
    end

    update :update do
      accept [:name, :age, :user_id]
    end
  end

  attributes do
    uuid_primary_key :id
    attribute :name, :string, allow_nil?: false

    attribute :age, :integer do
      constraints min: 0
    end
  end

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

schnady•3mo ago

see this you can have the form (for pet creation) have an argument for user than

   form =
      MyApp.Ash.Pet.form_to_create_pet( .... .user.id )

   form =
      MyApp.Ash.Pet.form_to_create_pet( .... .user.id )

ZachDaniel•3mo ago

IIRC if you set this on the target resource you can get multi-select/single select: https://hexdocs.pm/ash_admin/dsl-ashadmin-resource.html#admin-label_field

JVMartynsOP•3mo ago

It's works. Thank you very much.

JVMartynsOP•3mo ago

Is this a bug? 🤔 It turns back into a text field if you disablelabel_field

  admin do
    actor? true
    label_field :email
  end

  admin do
    actor? true
    label_field :email
  end

ZachDaniel•3mo ago

Looks like a bug to me, yes Please open an issue Ideally if you can, reproduce that with the resources in the /dev app In the ash_admin repo You can run that with iex -S mix dev

JVMartynsOP•3mo ago

Okay, I'll try! I chose to post it here in this thread because it's already related to the initial topic.

JVMartynsOP•3mo ago

Apologies for the delay https://github.com/ash-project/ash_admin/issues/341

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Is it possible to list and select the relationship in the Admin resource creation form?

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