Merge pull request #53 from technologiestiftung/feat/games-with-dice-…

…optional

feat: scope dice to game (for now optionally)

app/models/die.rb

@@ -1,4 +1,5 @@
 class Die < ApplicationRecord
+  belongs_to :game, optional: true
   has_many :sides, dependent: :destroy
   has_many :rolls, through: :sides
 

app/models/game.rb

@@ -0,0 +1,5 @@
+class Game < ApplicationRecord
+  has_many :dice, dependent: :destroy
+
+  validates :title, presence: true
+end

db/migrate/20230804130953_create_games.rb

@@ -0,0 +1,9 @@
+class CreateGames < ActiveRecord::Migration[7.0]
+  def change
+    create_table :games do |t|
+      t.string :title, null: false
+
+      t.timestamps
+    end
+  end
+end

db/migrate/20230804132630_add_game_to_dice.rb

@@ -0,0 +1,5 @@
+class AddGameToDice < ActiveRecord::Migration[7.0]
+  def change
+    add_reference :dice, :game, null: true, foreign_key: true
+  end
+end

db/migrate/20230901084121_remove_foreign_key_from_dice.rb

@@ -0,0 +1,7 @@
+class RemoveForeignKeyFromDice < ActiveRecord::Migration[7.0]
+  def change
+    if foreign_key_exists?(:dice, :games)
+      remove_foreign_key :dice, :games
+    end
+  end
+end

db/migrate/20230901084435_make_game_nullable_on_dice.rb

@@ -0,0 +1,5 @@
+class MakeGameNullableOnDice < ActiveRecord::Migration[7.0]
+  def change
+    change_column_null(:dice, :game_id, true)
+  end
+end

test/fixtures/games.yml

@@ -0,0 +1,5 @@
+summer:
+  title: "My summer dice game"
+
+autumn:
+  title: "My autumn dice game"

test/models/game_test.rb

@@ -0,0 +1,9 @@
+require "test_helper"
+
+class GameTest < ActiveSupport::TestCase
+  test "accepts game with valid attributes" do
+    game = Game.new title: "My game"
+    assert game.valid?
+    assert_empty game.errors
+  end
+end