Update the Ecto associations

README.md

@@ -39,7 +39,26 @@ Let's make sure it works
 
 `mix test`
 
-** Note to self, possibly add Player.games & Game.players as `has_many:through`? **
+This is nice, but I want to have the associations available on my Structs.
+Updating this is pretty easy, we can just replace the foreign binary_ids with the `[has_*, belongs_*] macros.
+
+In `Scoreboard.Games.Score` Replace
+
+```elixir
+field :player_id, :binary_id
+field :game_id, :binary_id
+```
+
+With
+
+```elixir
+belongs_to(:game, Game)
+belongs_to(:player, Player)
+```
+
+I added the associations to the `Game` and `Player` schemas as well.
+
+Test again and make sure everything is still okay `mix test`
 
 
 ### Absinthe

lib/scoreboard/games/game.ex

@@ -1,12 +1,15 @@
 defmodule Scoreboard.Games.Game do
   use Ecto.Schema
   import Ecto.Changeset
-
+  alias Scoreboard.Games.{Player, Score}
 
   @primary_key {:id, :binary_id, autogenerate: true}
   @foreign_key_type :binary_id
   schema "games" do
-    field :name, :string
+    field(:name, :string)
+
+    has_many(:scores, Score)
+    many_to_many(:players, Player, join_through: Score)
 
     timestamps()
   end

lib/scoreboard/games/player.ex

@@ -1,12 +1,15 @@
 defmodule Scoreboard.Games.Player do
   use Ecto.Schema
   import Ecto.Changeset
-
+  alias Scoreboard.Games.{Game, Score}
 
   @primary_key {:id, :binary_id, autogenerate: true}
   @foreign_key_type :binary_id
   schema "players" do
-    field :name, :string
+    field(:name, :string)
+
+    has_many(:scores, Score)
+    many_to_many(:games, Game, join_through: Score)
 
     timestamps()
   end

lib/scoreboard/games/score.ex

@@ -1,14 +1,14 @@
 defmodule Scoreboard.Games.Score do
   use Ecto.Schema
   import Ecto.Changeset
-
+  alias Scoreboard.Games.{Game, Player}
 
   @primary_key {:id, :binary_id, autogenerate: true}
   @foreign_key_type :binary_id
   schema "scores" do
-    field :total, :integer
-    field :player_id, :binary_id
-    field :game_id, :binary_id
+    field(:total, :integer)
+    belongs_to(:game, Game)
+    belongs_to(:player, Player)
 
     timestamps()
   end