test:add failing test for loading non multitenant resource through many to many from context multitnancy resource

priv/resource_snapshots/test_repo/tenants/non_multitenant_post_multitenant_links/20251001120813.json

@@ -0,0 +1,124 @@
+{
+  "attributes": [
+    {
+      "allow_nil?": false,
+      "default": "fragment(\"gen_random_uuid()\")",
+      "generated?": false,
+      "precision": null,
+      "primary_key?": true,
+      "references": null,
+      "scale": null,
+      "size": null,
+      "source": "id",
+      "type": "uuid"
+    },
+    {
+      "allow_nil?": true,
+      "default": "\"active\"",
+      "generated?": false,
+      "precision": null,
+      "primary_key?": false,
+      "references": null,
+      "scale": null,
+      "size": null,
+      "source": "state",
+      "type": "text"
+    },
+    {
+      "allow_nil?": false,
+      "default": "nil",
+      "generated?": false,
+      "precision": null,
+      "primary_key?": false,
+      "references": {
+        "deferrable": false,
+        "destination_attribute": "id",
+        "destination_attribute_default": null,
+        "destination_attribute_generated": null,
+        "index?": true,
+        "match_type": null,
+        "match_with": null,
+        "multitenancy": {
+          "attribute": null,
+          "global": false,
+          "strategy": "context"
+        },
+        "name": "non_multitenant_post_multitenant_links_source_id_fkey",
+        "on_delete": "delete",
+        "on_update": null,
+        "primary_key?": true,
+        "schema": "public",
+        "table": "multitenant_posts"
+      },
+      "scale": null,
+      "size": null,
+      "source": "source_id",
+      "type": "uuid"
+    },
+    {
+      "allow_nil?": false,
+      "default": "nil",
+      "generated?": false,
+      "precision": null,
+      "primary_key?": false,
+      "references": {
+        "deferrable": false,
+        "destination_attribute": "id",
+        "destination_attribute_default": null,
+        "destination_attribute_generated": null,
+        "index?": true,
+        "match_type": null,
+        "match_with": null,
+        "multitenancy": {
+          "attribute": null,
+          "global": null,
+          "strategy": null
+        },
+        "name": "non_multitenant_post_multitenant_links_dest_id_fkey",
+        "on_delete": "delete",
+        "on_update": null,
+        "primary_key?": true,
+        "schema": "public",
+        "table": "posts"
+      },
+      "scale": null,
+      "size": null,
+      "source": "dest_id",
+      "type": "uuid"
+    }
+  ],
+  "base_filter": null,
+  "check_constraints": [],
+  "custom_indexes": [],
+  "custom_statements": [],
+  "has_create_action": true,
+  "hash": "F19D22A316D43A64BF2F1E052F545346BD0BCBC660E8EF559D1D4D73D8969A4D",
+  "identities": [
+    {
+      "all_tenants?": false,
+      "base_filter": null,
+      "index_name": "non_multitenant_post_multitenant_links_unique_link_index",
+      "keys": [
+        {
+          "type": "atom",
+          "value": "source_id"
+        },
+        {
+          "type": "atom",
+          "value": "dest_id"
+        }
+      ],
+      "name": "unique_link",
+      "nils_distinct?": true,
+      "where": null
+    }
+  ],
+  "multitenancy": {
+    "attribute": null,
+    "global": false,
+    "strategy": "context"
+  },
+  "repo": "Elixir.AshPostgres.TestRepo",
+  "schema": null,
+  "table": "non_multitenant_post_multitenant_links"
+}

priv/test_repo/tenant_migrations/20251001120813_migrate_resources7.exs

@@ -0,0 +1,78 @@
+defmodule AshPostgres.TestRepo.TenantMigrations.MigrateResources7 do
+  @moduledoc """
+  Updates resources based on their most recent snapshots.
+
+  This file was autogenerated with `mix ash_postgres.generate_migrations`
+  """
+
+  use Ecto.Migration
+
+  def up do
+    create table(:non_multitenant_post_multitenant_links, primary_key: false, prefix: prefix()) do
+      add(:id, :uuid, null: false, default: fragment("gen_random_uuid()"), primary_key: true)
+      add(:state, :text, default: "active")
+
+      add(
+        :source_id,
+        references(:multitenant_posts,
+          column: :id,
+          name: "non_multitenant_post_multitenant_links_source_id_fkey",
+          type: :uuid,
+          prefix: prefix(),
+          on_delete: :delete_all
+        ),
+        null: false
+      )
+
+      add(
+        :dest_id,
+        references(:posts,
+          column: :id,
+          name: "non_multitenant_post_multitenant_links_dest_id_fkey",
+          type: :uuid,
+          prefix: "public",
+          on_delete: :delete_all
+        ),
+        null: false
+      )
+    end
+
+    create(index(:non_multitenant_post_multitenant_links, [:source_id]))
+
+    create(index(:non_multitenant_post_multitenant_links, [:dest_id]))
+
+    create(
+      unique_index(:non_multitenant_post_multitenant_links, [:source_id, :dest_id],
+        name: "non_multitenant_post_multitenant_links_unique_link_index"
+      )
+    )
+  end
+
+  def down do
+    drop_if_exists(
+      unique_index(:non_multitenant_post_multitenant_links, [:source_id, :dest_id],
+        name: "non_multitenant_post_multitenant_links_unique_link_index"
+      )
+    )
+
+    drop_if_exists(index(:non_multitenant_post_multitenant_links, [:dest_id]))
+
+    drop_if_exists(index(:non_multitenant_post_multitenant_links, [:source_id]))
+
+    drop(
+      constraint(
+        :non_multitenant_post_multitenant_links,
+        "non_multitenant_post_multitenant_links_source_id_fkey"
+      )
+    )
+
+    drop(
+      constraint(
+        :non_multitenant_post_multitenant_links,
+        "non_multitenant_post_multitenant_links_dest_id_fkey"
+      )
+    )
+
+    drop(table(:non_multitenant_post_multitenant_links, prefix: prefix()))
+  end
+end

test/multitenancy_test.exs

@@ -2,7 +2,7 @@
   use AshPostgres.RepoCase, async: false
 
   require Ash.Query
-  alias AshPostgres.MultitenancyTest.{CompositeKeyPost, NamedOrg, Org, Post, User}
+  alias AshPostgres.MultitenancyTest.{CompositeKeyPost, NamedOrg, Org, Post, User, NonMultitenantPostMultitenantLink}
   alias AshPostgres.Test.Post, as: GlobalPost
 
   setup do
@@ -226,6 +226,24 @@
              )
   end
 
+  test "loading non multitenant resource across a many_to_many works", %{org1: org1} do
+    post = Post
+      |> Ash.Changeset.for_create(:create, %{name: "foo"})
+      |> Ash.Changeset.set_tenant(org1)
+      |> Ash.create!()
+
+    GlobalPost
+      |> Ash.Changeset.for_create(:create, %{title: "fred"})
+      |> Ash.create!()
+
+    NonMultitenantPostMultitenantLink
+      |> Ash.Changeset.for_create(:create, %{source_id: post.id, dest_id: global_post.id}, tenant: org1)
+      |> Ash.create!()
+
+    post |> Ash.load!([:linked_non_multitenant_posts_through_multitenant_link], tenant: org1) |> IO.inspect()
+  end
+
+
   test "manage_relationship from context multitenant resource to attribute multitenant resource doesn't raise an error" do
     org = Org |> Ash.Changeset.new() |> Ash.create!()
     user = User |> Ash.Changeset.new() |> Ash.create!()

test/support/multitenancy/domain.ex

@@ -12,6 +12,7 @@ defmodule AshPostgres.MultitenancyTest.Domain do
     resource(AshPostgres.MultitenancyTest.NonMultitenantPostLink)
     resource(AshPostgres.MultitenancyTest.CrossTenantPostLink)
     resource(AshPostgres.MultitenancyTest.CompositeKeyPost)
+    resource(AshPostgres.MultitenancyTest.NonMultitenantPostMultitenantLink)
   end
 
   authorization do

test/support/multitenancy/resources/non_multitenant_post_multitenant_link.ex

@@ -0,0 +1,52 @@
+defmodule AshPostgres.MultitenancyTest.NonMultitenantPostMultitenantLink do
+  @moduledoc false
+  use Ash.Resource,
+    domain: AshPostgres.MultitenancyTest.Domain,
+    data_layer: AshPostgres.DataLayer
+
+  postgres do
+    table "non_multitenant_post_multitenant_links"
+    repo AshPostgres.TestRepo
+
+    references do
+      reference :source, on_delete: :delete, index?: true
+      reference :dest, on_delete: :delete, index?: true
+    end
+  end
+
+  multitenancy do
+    strategy(:context)
+  end
+
+  actions do
+    default_accept(:*)
+
+    defaults([:create, :read, :update, :destroy])
+  end
+
+  identities do
+    identity(:unique_link, [:source_id, :dest_id])
+  end
+
+  attributes do
+    uuid_primary_key :id
+
+    attribute :state, :atom do
+      public?(true)
+      constraints(one_of: [:active, :archived])
+      default(:active)
+    end
+  end
+
+  relationships do
+    belongs_to :source, AshPostgres.MultitenancyTest.Post do
+      public? true
+      allow_nil? false
+    end
+
+    belongs_to :dest, AshPostgres.Test.Post do
+      public? true
+      allow_nil? false
+    end
+  end
+end

test/support/multitenancy/resources/post.ex

@@ -59,12 +59,23 @@ defmodule AshPostgres.MultitenancyTest.Post do
 
     # has_many(:non_multitenant_post_links, AshPostgres.MultitenancyTest.NonMultitenantPostLink)
 
+    has_many :non_multitenant_post_multitenant_links, AshPostgres.MultitenancyTest.NonMultitenantPostMultitenantLink do
+      destination_attribute :source_id
+    end
+
     many_to_many :linked_non_multitenant_posts, AshPostgres.Test.Post do
       through(AshPostgres.MultitenancyTest.NonMultitenantPostLink)
       join_relationship(:non_multitenant_post_links)
       source_attribute_on_join_resource(:source_id)
       destination_attribute_on_join_resource(:dest_id)
     end
+
+    many_to_many :linked_non_multitenant_posts_through_multitenant_link, AshPostgres.Test.Post do
+      through(AshPostgres.MultitenancyTest.NonMultitenantPostMultitenantLink)
+      join_relationship(:non_multitenant_post_links_through_multitenant_link)
+      source_attribute_on_join_resource(:source_id)
+      destination_attribute_on_join_resource(:dest_id)
+    end
   end
 
   calculations do