preload urls of nodes for the frontend

Author: electronicbites

lib/radiator/outline/node_repository.ex

@@ -69,6 +69,7 @@ defmodule Radiator.Outline.NodeRepository do
   def list_nodes_by_node_container(outline_node_container_id) do
     Node
     |> where([p], p.outline_node_container_id == ^outline_node_container_id)
+    |> preload(:urls)
     |> Repo.all()
     |> Enum.group_by(& &1.parent_id)
     |> Enum.map(fn {_parent_id, children} -> Radiator.Outline.order_sibling_nodes(children) end)

test/radiator/outline/node_repository_test.exs

@@ -4,6 +4,7 @@ defmodule Radiator.Outline.NodeRepositoryTest do
   alias Radiator.Outline.Node
   alias Radiator.Outline.NodeRepository
   alias Radiator.PodcastFixtures
+  alias Radiator.ResourcesFixtures
 
   import Radiator.OutlineFixtures
   import Ecto.Query, warn: false
@@ -78,6 +79,28 @@ defmodule Radiator.Outline.NodeRepositoryTest do
                node2
              ]
     end
+
+  describe "list_nodes_by_episode/1" do
+    test "returns only nodes of this episode" do
+      node1 = node_fixture()
+      node2 = node_fixture()
+
+      assert NodeRepository.list_nodes_by_episode(node1.episode_id) |> Enum.map(& &1.uuid) == [
+               node1.uuid
+             ]
+
+      assert NodeRepository.list_nodes_by_episode(node2.episode_id) |> Enum.map(& &1.uuid) == [
+               node2.uuid
+             ]
+    end
+
+    test "preloads optional associated URLs" do
+      node = node_fixture()
+      url = ResourcesFixtures.url_fixture(node_id: node.uuid)
+      [loaded_node] = NodeRepository.list_nodes_by_episode(node.episode_id)
+      assert loaded_node.uuid == node.uuid
+      assert loaded_node.urls == [url]
+    end
   end
 
   describe "delete_node/1" do