フロントエンドプレイアブル

db/migrate/20260211013256_create_participants.rb

@@ -0,0 +1,16 @@
+class CreateParticipants < ActiveRecord::Migration[8.1]
+  def change
+    create_table :participants do |t|
+      t.references :user, null: false, foreign_key: true
+      t.references :game, null: false, foreign_key: true
+      t.string :power, null: true
+      t.boolean :orders_submitted, default: false, null: false
+      t.boolean :is_administrator, default: false, null: false
+
+      t.timestamps
+    end
+    
+    add_index :participants, [:user_id, :game_id], unique: true
+    add_index :participants, [:game_id, :power], unique: true, where: "power IS NOT NULL"
+  end
+end