fixes #1257

app/controllers/admin/users_controller.rb

@@ -10,10 +10,7 @@ module Admin
     def update
       @user = User.find(params[:id])
       sanitize_params!
-      @user.level = params[:user][:level]
-      @user.inviter_id = CurrentUser.id
-      TransactionLogItem.record_account_upgrade(@user)
-      @user.save
+      @user.promote_to!(params[:user][:level])
       redirect_to edit_admin_user_path(@user), :notice => "User updated"
     end
 

app/models/user.rb

@@ -242,8 +242,23 @@ class User < ActiveRecord::Base
       end
     end
 
-    def promote_to(level)
-      update_attributes({:level => level}, :as => :admin)
+    def promote_to!(new_level)
+      self.level = new_level
+      self.inviter_id = CurrentUser.user.id
+      TransactionLogItem.record_account_upgrade(self)
+      if level > level_was
+        body_prefix = "Promoted"
+      elsif level < level_was
+        body_prefix = "Demoted"
+      else
+        body_prefix = ""
+      end
+
+      feedback.create(
+        :category => "neutral",
+        :body => "#{body_prefix} by #{inviter.name} from #{level_string(level_was)} to #{level_string(level)}"
+      )
+      save
     end
 
     def promote_to_admin_if_first_user

test/unit/user_test.rb

@@ -13,6 +13,26 @@ class UserTest < ActiveSupport::TestCase
       CurrentUser.user = nil
       CurrentUser.ip_addr = nil
     end
+    
+    context "promoting a user" do
+      setup do
+        CurrentUser.user = FactoryGirl.create(:moderator_user)
+      end
+
+      should "create a transaction log item" do
+        assert_difference("TransactionLogItem.count") do
+          @user.promote_to!(User::Levels::GOLD)
+        end
+      end
+
+      should "create a neutral feedback" do
+        assert_difference("UserFeedback.count") do
+          @user.promote_to!(User::Levels::GOLD)
+        end
+
+        assert_equal("Promoted by #{CurrentUser.user.name} from Member to Gold", @user.feedback.last.body)
+      end
+    end
 
     context "favoriting a post" do
       setup do