example resource

defmodule AshExample.Ticket do
  use Ash.Resource,
    data_layer: AshPostgres.DataLayer,
    authorizers: [
      AshPolicyAuthorizer.Authorizer
    ],
    extensions: [
      AshJsonApi.Resource
    ]

  policies do
    access_type :filter

    policy do
      name "Here is a name!"

      authorize_if relates_to_actor_via(:reporter)
      authorize_if relates_to_actor_via(:representative)
    end
  end

  postgres do
    table "tickets"
    repo AshExample.Repo
  end

  json_api do
    type "ticket"
    fields [:subject]

    routes do
      base "/tickets"

      get :default
      index :default

      relationship :linked_tickets, :default
      post_to_relationship :linked_tickets, :default
      patch_relationship :linked_tickets, :default
    end
  end

  actions do
    read :default
    create :default
    update :default
  end

  attributes do
    attribute :id, :uuid do
      primary_key?(true)
      default(&Ecto.UUID.generate/0)
    end

    attribute :subject, :string
  end

  relationships do
    belongs_to :reporter, AshExample.User

    belongs_to :representative, AshExample.Representative

    many_to_many :linked_tickets, AshExample.Ticket,
      through: AshExample.TicketLink,
      source_field: :id,
      destination_field: :id,
      source_field_on_join_table: :source_ticket_id,
      destination_field_on_join_table: :destination_ticket_id,
      join_attributes: [:link_type]
  end
end