Symbols fixup

lib/bitmask_attributes/value_proxy.rb

@@ -13,6 +13,7 @@ def initialize(record, attribute, &extension)
     # = OVERRIDE TO SERIALIZE =
     # =========================
 
+    alias_method :orig_replace, :replace
     %w(push << delete replace reject! select!).each do |override|
       class_eval(<<-EOEVAL)
         def #{override}(*args)
@@ -39,8 +40,13 @@ def validate!
         end
       end
 
+      def symbolize!
+        orig_replace(map(&:to_sym))
+      end
+
       def updated!
         validate!
+        symbolize!
         uniq!
         serialize!
       end

test/bitmask_attributes_test.rb

@@ -34,7 +34,10 @@ class BitmaskAttributesTest < ActiveSupport::TestCase
       assert_stored campaign, :web, :print, :phone
       campaign.medium << :phone
       assert_stored campaign, :web, :print, :phone
+      campaign.medium << "phone"
+      assert_stored campaign, :web, :print, :phone
       assert_equal 1, campaign.medium.select { |value| value == :phone }.size
+      assert_equal 0, campaign.medium.select { |value| value == "phone" }.size
     end
 
     should "can assign new values at once to bitmask" do