adds a new user settings system + migration + rake task/worker updates

db/migrate/20130605112109_create_settings.rb

@@ -0,0 +1,17 @@
+class CreateSettings < ActiveRecord::Migration
+  def self.up
+    create_table :settings do |t|
+      t.string :var, null: false
+      t.text   :value, null: true
+      t.integer :thing_id, null: true
+      t.string :thing_type, limit: 30, null: true
+      t.timestamps
+    end
+    
+    add_index :settings, [ :thing_type, :thing_id, :var ], unique: true
+  end
+
+  def self.down
+    drop_table :settings
+  end
+end

db/migrate/20130605235825_migrate_user_settings.rb

@@ -0,0 +1,34 @@
+class MigrateUserSettings < ActiveRecord::Migration
+  def up
+    old_settings = ConfigurableSetting.all
+    
+    old_settings.each do |old_setting|
+      # get target (user)
+      type      = old_setting.configurable_type
+      id        = old_setting.configurable_id
+      user      = type.constantize.find(id)
+      
+      # get the data (settings)
+      name      = old_setting.name
+      namespace = name.split('.')[0]
+      key       = name.split('.')[1].underscore # Camelcase to underscore
+      
+      # prepare value
+      value     = YAML.load(old_setting.value)
+      value     = value.nil? ? false : value
+      
+      # set the settings_attributes (thanks to settings.merge! we can set them one by one)
+      user.settings_attributes = {
+        "#{namespace}" => {
+          "#{key}" => value
+        }
+      }
+      
+      # save the user to apply after_save callback
+      user.save
+    end
+  end
+
+  def down
+  end
+end

db/schema.rb

@@ -11,7 +11,7 @@
 #
 # It's strongly recommended to check this file into your version control system.
 
-ActiveRecord::Schema.define(:version => 20121230142516) do
+ActiveRecord::Schema.define(:version => 20130605235825) do
 
   create_table "article_categories", :force => true do |t|
     t.string "name",        :default => "", :null => false
@@ -268,6 +268,17 @@ ActiveRecord::Schema.define(:version => 20121230142516) do
   add_index "pages", ["permalink"], :name => "index_pages_on_permalink"
   add_index "pages", ["title"], :name => "index_pages_on_title"
 
+  create_table "settings", :force => true do |t|
+    t.string   "var",                      :null => false
+    t.text     "value"
+    t.integer  "thing_id"
+    t.string   "thing_type", :limit => 30
+    t.datetime "created_at",               :null => false
+    t.datetime "updated_at",               :null => false
+  end
+
+  add_index "settings", ["thing_type", "thing_id", "var"], :name => "index_settings_on_thing_type_and_thing_id_and_var", :unique => true
+
   create_table "stock_changes", :force => true do |t|
     t.integer  "delivery_id"
     t.integer  "order_id"