friendly id, fix some db

config/environment.rb

@@ -38,6 +38,7 @@
   config.gem "giraffesoft-is_taggable", :lib => "is_taggable"
   config.gem "nofxx-formtastic", :lib => "formtastic"
   config.gem "nofxx-money", :lib => "money"
+  config.gem "friendly_id"
 
   # config.load_paths += %W( #{RAILS_ROOT}/extras )
   # config.plugins = [ :exception_notification, :ssl_requirement, :all ]

db/migrate/20090319011550_create_provinces.rb

@@ -2,10 +2,14 @@ class CreateProvinces < ActiveRecord::Migration
   def self.up
     create_table :provinces do |t|
       t.references :country
-      t.string :name
+      t.string :name, :null => false
+      t.string :abbr, :limit => 3
 
       t.timestamps
     end
+
+    add_index :provinces, :name, :unique => true
+    add_index :provinces, :abbr, :unique => true
   end
 
   def self.down

db/migrate/20090319011615_create_countries.rb

@@ -1,13 +1,14 @@
 class CreateCountries < ActiveRecord::Migration
   def self.up
     create_table :countries do |t|
-      t.string :name
-      t.string :abbr
+      t.string :name, :null => false
+      t.string :abbr, :limit => 3
 
       t.timestamps
     end
 
-    add_index :countries, :name
+    add_index :countries, :name, :unique => true
+    add_index :countries, :abbr, :unique => true
   end
 
   def self.down