test: regression tests for bulk manage_relationship rollback bug

priv/resource_snapshots/test_repo/rollback_children/20260225131409.json

@@ -0,0 +1,75 @@
+{
+  "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?": false,
+      "default": "nil",
+      "generated?": false,
+      "precision": null,
+      "primary_key?": false,
+      "references": null,
+      "scale": null,
+      "size": null,
+      "source": "title",
+      "type": "text"
+    },
+    {
+      "allow_nil?": true,
+      "default": "nil",
+      "generated?": false,
+      "precision": null,
+      "primary_key?": false,
+      "references": {
+        "deferrable": false,
+        "destination_attribute": "id",
+        "destination_attribute_default": null,
+        "destination_attribute_generated": null,
+        "index?": false,
+        "match_type": null,
+        "match_with": null,
+        "multitenancy": {
+          "attribute": null,
+          "global": null,
+          "strategy": null
+        },
+        "name": "rollback_children_rollback_parent_id_fkey",
+        "on_delete": "delete",
+        "on_update": null,
+        "primary_key?": true,
+        "schema": "public",
+        "table": "rollback_parents"
+      },
+      "scale": null,
+      "size": null,
+      "source": "rollback_parent_id",
+      "type": "uuid"
+    }
+  ],
+  "base_filter": null,
+  "check_constraints": [],
+  "create_table_options": null,
+  "custom_indexes": [],
+  "custom_statements": [],
+  "has_create_action": true,
+  "hash": "84B94C6E7E9C2B15D35A96914F1F125C3B8188FDD1F8C4835F9B95E3B2C205A9",
+  "identities": [],
+  "multitenancy": {
+    "attribute": null,
+    "global": null,
+    "strategy": null
+  },
+  "repo": "Elixir.AshPostgres.TestRepo",
+  "schema": null,
+  "table": "rollback_children"
+}

priv/resource_snapshots/test_repo/rollback_parents/20260225131408.json

@@ -0,0 +1,44 @@
+{
+  "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?": false,
+      "default": "nil",
+      "generated?": false,
+      "precision": null,
+      "primary_key?": false,
+      "references": null,
+      "scale": null,
+      "size": null,
+      "source": "name",
+      "type": "text"
+    }
+  ],
+  "base_filter": null,
+  "check_constraints": [],
+  "create_table_options": null,
+  "custom_indexes": [],
+  "custom_statements": [],
+  "has_create_action": true,
+  "hash": "D48EF295250D00CBF79C15D7D2F283C68ED48B0E20E618B0490E81D735BBB2A0",
+  "identities": [],
+  "multitenancy": {
+    "attribute": null,
+    "global": null,
+    "strategy": null
+  },
+  "repo": "Elixir.AshPostgres.TestRepo",
+  "schema": null,
+  "table": "rollback_parents"
+}

priv/resource_snapshots/test_repo/rollback_parents/20260226084406.json

@@ -0,0 +1,59 @@
+{
+  "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?": false,
+      "default": "nil",
+      "generated?": false,
+      "precision": null,
+      "primary_key?": false,
+      "references": null,
+      "scale": null,
+      "size": null,
+      "source": "name",
+      "type": "text"
+    }
+  ],
+  "base_filter": null,
+  "check_constraints": [],
+  "create_table_options": null,
+  "custom_indexes": [],
+  "custom_statements": [],
+  "has_create_action": true,
+  "hash": "4A01DCA3229485184855683251C5175BBB828A8299B247C9F6F19972863040F8",
+  "identities": [
+    {
+      "all_tenants?": false,
+      "base_filter": null,
+      "index_name": "rollback_parents_unique_name_index",
+      "keys": [
+        {
+          "type": "atom",
+          "value": "name"
+        }
+      ],
+      "name": "unique_name",
+      "nils_distinct?": true,
+      "where": null
+    }
+  ],
+  "multitenancy": {
+    "attribute": null,
+    "global": null,
+    "strategy": null
+  },
+  "repo": "Elixir.AshPostgres.TestRepo",
+  "schema": null,
+  "table": "rollback_parents"
+}

priv/test_repo/migrations/20260225131407_migrate_resources70.exs

@@ -0,0 +1,54 @@
+defmodule AshPostgres.TestRepo.Migrations.MigrateResources70 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(:rollback_children, primary_key: false) do
+      add(:id, :uuid, null: false, default: fragment("gen_random_uuid()"), primary_key: true)
+      add(:title, :text, null: false)
+      add(:rollback_parent_id, :uuid)
+    end
+
+    create table(:rollback_parents, primary_key: false) do
+      add(:id, :uuid, null: false, default: fragment("gen_random_uuid()"), primary_key: true)
+    end
+
+    alter table(:rollback_children) do
+      modify(
+        :rollback_parent_id,
+        references(:rollback_parents,
+          column: :id,
+          name: "rollback_children_rollback_parent_id_fkey",
+          type: :uuid,
+          prefix: "public",
+          on_delete: :delete_all
+        )
+      )
+    end
+
+    alter table(:rollback_parents) do
+      add(:name, :text, null: false)
+    end
+  end
+
+  def down do
+    alter table(:rollback_parents) do
+      remove(:name)
+    end
+
+    drop(constraint(:rollback_children, "rollback_children_rollback_parent_id_fkey"))
+
+    alter table(:rollback_children) do
+      modify(:rollback_parent_id, :uuid)
+    end
+
+    drop(table(:rollback_parents))
+
+    drop(table(:rollback_children))
+  end
+end

priv/test_repo/migrations/20260226084405_migrate_resources71.exs

@@ -0,0 +1,19 @@
+defmodule AshPostgres.TestRepo.Migrations.MigrateResources71 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(unique_index(:rollback_parents, [:name], name: "rollback_parents_unique_name_index"))
+  end
+
+  def down do
+    drop_if_exists(
+      unique_index(:rollback_parents, [:name], name: "rollback_parents_unique_name_index")
+    )
+  end
+end