Destroy a state when leaving a game.

Fixed #111

app/controllers/states_controller.rb

@@ -1,7 +1,7 @@
 class StatesController < ApplicationController
   before_filter :login_required
   before_filter :game_required
-  before_filter :find_state, :only => [:show, :edit, :update]
+  before_filter :find_state, :only => [:show, :edit, :update, :destroy]
 
   respond_to :json, :except => [:new, :edit]
   respond_to :html
@@ -22,6 +22,12 @@ def create
     respond_with @state
   end
 
+  def destroy
+    game = @state.game
+    @state.destroy
+    redirect_to game
+  end
+
   def show
     respond_with @state
   end

app/views/games/_game.html.haml

@@ -8,6 +8,7 @@
   %p
     You are playing in this game.
     %a{:href => games_url} Leave this game
+    = button_to "Leave this game", {:id => current_state.id}, :method => :delete, :confirm => "Are you sure?"
 
 %h2 States
 

config/routes.rb

@@ -7,7 +7,8 @@
     resources :cities, :only => [:index, :show]
   end
 
-  resources :states, :only => [:index, :show, :update, :create, :edit] do
+  resources :states,
+      :only => [:index, :show, :update, :create, :edit, :destroy] do
     resources :cities, :only => [:index, :show]
     resources "interstate-lines", :controller => :interstate_lines,
         :as => :interstate_lines,