Add migrations to setup categories

priv/repo/migrations/20180108185020_remove_category_name_string_from_game_matches.exs

@@ -0,0 +1,9 @@
+defmodule Eliscore.Repo.Migrations.RemoveCategoryNameStringFromGameMatches do
+  use Ecto.Migration
+
+  def change do
+    alter table(:game_matches) do
+      remove :category
+    end
+  end
+end

priv/repo/migrations/20180108195020_create_categories.exs

@@ -0,0 +1,12 @@
+defmodule Eliscore.Repo.Migrations.CreateCategories do
+  use Ecto.Migration
+
+  def change do
+    create table(:categories) do
+      add :name, :string
+
+      timestamps()
+    end
+
+  end
+end

priv/repo/migrations/20180108200411_game_match_belongs_to_category.exs

@@ -0,0 +1,9 @@
+defmodule Eliscore.Repo.Migrations.GameMatchBelongsToCategory do
+  use Ecto.Migration
+
+  def change do
+    alter table(:game_matches) do
+      add :category_id, references(:categories)
+    end
+  end
+end