bradly · April 26, 2013 17:28 · Apr 26, 2013
diff --git a/active_record_singleton.rb b/active_record_singleton.rb
@@ -0,0 +1,31 @@
+module ActiveRecordSingleton
+  def self.included(base)
+    base.class_eval do
+      class << self
+        delegate :attributes, :save, :save!, :update_attribute, :update_attributes, :update_attributes!, :update_column, to: 'instance'
+
+        [:new, :create, :create!, :destroy, :destroy_all, :delete, :delete_all].each do |method_name|
+          undef_method method_name
+        end
+
+        def instance
+          @@singleton ||= self.first_or_create!
+        end
+      end
+
+      [:destroy, :delete, :clone, :dup].each do |method_name|
+        undef_method method_name
+      end
+
+      column_names.each do |column_name|
+        define_singleton_method column_name.to_sym do
+          instance.send(column_name.to_sym)
+        end
+
+        define_singleton_method :"#{column_name}=" do |value|
+          instance.send(:"#{column_name}=", value)
+        end
+      end
+    end
+  end
+end
diff --git a/settings.rb b/settings.rb
@@ -0,0 +1,3 @@
+class Settings < ActiveRecord::Base
+  include ActiveRecordSingleton
+end