Merge pull request #8 from shamshirz/first-mutation

First mutation

README.md

@@ -9,7 +9,7 @@ Browser games and leaderboards. You play them, you love them, let's make a serve
 To start your Phoenix server:
 
   * Install dependencies with `mix deps.get`
-  * Create and migrate your database with `mix ecto.create && mix ecto.migrate`
+  * Create and migrate your database with `mix ecto.setup`
   * Start Phoenix endpoint with `mix phx.server`
   * Hit it `um…TODO`
 
@@ -134,6 +134,10 @@ TO SELF - Point out verbosity and repeated simple functions of the normal ecto c
 Point out reduced line count, show a PR maybe.
 
 
+### Step 5 - Mutation
+
+Link to this PR.
+
 ## Learn more
 
  Add my own deets here

lib/scoreboard/games/score.ex

@@ -16,7 +16,7 @@ defmodule Scoreboard.Games.Score do
   @doc false
   def changeset(score, attrs) do
     score
-    |> cast(attrs, [:total])
-    |> validate_required([:total])
+    |> cast(attrs, [:total, :player_id, :game_id])
+    |> validate_required([:total, :player_id, :game_id])
   end
 end

lib/scoreboard_web/resolvers/games.ex

@@ -0,0 +1,5 @@
+defmodule ScoreboardWeb.Resolvers.Games do
+
+  def submit_score(args, _res), do: Scoreboard.Games.create_score(args)
+
+end

lib/scoreboard_web/schema.ex

@@ -2,6 +2,7 @@ defmodule ScoreboardWeb.Schema do
   use Absinthe.Schema
   import Absinthe.Resolution.Helpers, only: [dataloader: 1]
   alias Scoreboard.Games
+  alias ScoreboardWeb.Resolvers
 
   def context(ctx) do
     loader =
@@ -53,4 +54,15 @@ defmodule ScoreboardWeb.Schema do
       end)
     end
   end
+
+  mutation do
+    @desc "Submit a score"
+    field :submit_score, type: :score do
+      arg(:game_id, non_null(:id))
+      arg(:player_id, non_null(:id))
+      arg(:total, non_null(:integer))
+
+      resolve(&Resolvers.Games.submit_score/2)
+    end
+  end
 end

test/scoreboard/games/games_test.exs

@@ -124,15 +124,24 @@ defmodule Scoreboard.GamesTest do
   end
 
   describe "scores" do
-    alias Scoreboard.Games.Score
+    alias Scoreboard.Games.{Game, Player, Score}
 
     @valid_attrs %{total: 42}
     @update_attrs %{total: 43}
     @invalid_attrs %{total: nil}
 
+    def game_and_player() do
+      game = Repo.insert!(%Game{name: "Code Simulator '08"})
+      player = Repo.insert!(%Player{name: "Aaron"})
+      %{game: game, player: player}
+    end
+
     def score_fixture(attrs \\ %{}) do
+      %{game: game, player: player} = game_and_player()
+
       {:ok, score} =
         attrs
+        |> Map.merge(%{game_id: game.id, player_id: player.id})
         |> Enum.into(@valid_attrs)
         |> Games.create_score()
 
@@ -150,7 +159,9 @@ defmodule Scoreboard.GamesTest do
     end
 
     test "create_score/1 with valid data creates a score" do
-      assert {:ok, %Score{} = score} = Games.create_score(@valid_attrs)
+      %{game: game, player: player} = game_and_player()
+
+      assert {:ok, %Score{} = score} = Games.create_score(@valid_attrs |> Map.merge(%{game_id: game.id, player_id: player.id}))
       assert score.total == 42
     end
 

test/scoreboard_web/schema_test.exs

@@ -64,4 +64,31 @@ defmodule Scoreboard.SchemaTest do
       assert get_in(data, ["game", "scores", first, "player", "name"]) == context.player.name
     end
   end
+
+  describe("mutation queries") do
+    test("create score", context) do
+      score = 37
+      document = """
+      mutation {
+        submitScore(player_id: "#{context.player.id}", game_id: "#{context.game.id}", total: #{score}) {
+          id
+          total
+          player {
+            name
+          }
+          game {
+            name
+          }
+        }
+      }
+      """
+
+      result = Absinthe.run(document, ScoreboardWeb.Schema)
+
+      assert {:ok, %{data: data}} = result
+      assert get_in(data, ["submitScore", "game", "name"]) == context.game.name
+      assert get_in(data, ["submitScore", "player", "name"]) == context.player.name
+      assert get_in(data, ["submitScore", "total"]) == score
+    end
+  end
 end