belongs_to associations

in episodes and podcasts

lib/radiator/podcasts/episode.ex

@@ -2,17 +2,18 @@ defmodule Radiator.Podcasts.Episode do
   use Ecto.Schema
   import Ecto.Changeset
 
+  alias Radiator.Podcasts.Podcast
+
   schema "episodes" do
     field :title, :string
-    field :podcast_id, :id
-
+    belongs_to :podcast, Podcast
     timestamps(type: :utc_datetime)
   end
 
   @doc false
   def changeset(episode, attrs) do
     episode
-    |> cast(attrs, [:title])
+    |> cast(attrs, [:title, :podcast_id])
     |> validate_required([:title, :podcast_id])
   end
 end

lib/radiator/podcasts/podcast.ex

@@ -1,19 +1,19 @@
 defmodule Radiator.Podcasts.Podcast do
   use Ecto.Schema
   import Ecto.Changeset
+  alias Radiator.Podcasts.Station
 
   schema "podcasts" do
     field :title, :string
     field :hostname, :string
-    field :station_id, :id
-
+    belongs_to :station, Station
     timestamps(type: :utc_datetime)
   end
 
   @doc false
   def changeset(podcast, attrs) do
     podcast
-    |> cast(attrs, [:title, :hostname])
+    |> cast(attrs, [:title, :hostname, :station_id])
     |> validate_required([:title])
   end
 end

test/radiator/podcasts_test.exs

@@ -130,7 +130,8 @@ defmodule Radiator.PodcastsTest do
     end
 
     test "create_episode/1 with valid data creates a episode" do
-      valid_attrs = %{title: "some title"}
+      podcast = podcast_fixture()
+      valid_attrs = %{title: "some title", podcast_id: podcast.id}
 
       assert {:ok, %Episode{} = episode} = Podcasts.create_episode(valid_attrs)
       assert episode.title == "some title"

test/support/fixtures/podcasts_fixtures.ex

@@ -29,7 +29,8 @@ defmodule Radiator.PodcastsFixtures do
       attrs
       |> Enum.into(%{
         hostname: "some hostname",
-        title: "some title"
+        title: "some title",
+        station: station
       })
       |> Podcasts.create_podcast()
 
@@ -40,10 +41,13 @@ defmodule Radiator.PodcastsFixtures do
   Generate a episode.
   """
   def episode_fixture(attrs \\ %{}) do
+    podcast = podcast_fixture()
+
     {:ok, episode} =
       attrs
       |> Enum.into(%{
-        title: "some title"
+        title: "my podcast episode 23",
+        podcast_id: podcast.id
       })
       |> Podcasts.create_episode()