reload to clear cached value. Fixes mongoid.

lib/validates_timeliness/orm/mongoid.rb

@@ -32,4 +32,10 @@ module Mongoid::Document
   include ValidatesTimeliness::HelperMethods
   include ValidatesTimeliness::AttributeMethods
   include ValidatesTimeliness::ORM::Mongoid
+
+  def reload_with_timeliness
+    @attributes_cache = {}
+    reload_without_timeliness
+  end
+  alias_method_chain :reload, :timeliness
 end

spec/validates_timeliness/orm/active_record_spec.rb

@@ -58,6 +58,15 @@ describe ValidatesTimeliness, 'ActiveRecord' do
     end
   end
 
+  context "cached value" do
+    it 'should be cleared on reload' do
+      r = Employee.create!
+      r.birth_date = '2010-01-01'
+      r.reload
+      r._timeliness_raw_value_for(:birth_date).should be_nil
+    end
+  end
+
   context "before_type_cast method" do
     it 'should be defined on class if ORM supports it' do
       Employee.instance_methods(false).should include("birth_datetime_before_type_cast")

spec/validates_timeliness/orm/mongoid_spec.rb

@@ -70,6 +70,15 @@ describe ValidatesTimeliness, 'Mongoid' do
     end
   end
 
+  context "cached value" do
+    it 'should be cleared on reload' do
+      r = Article.create!
+      r.publish_date = '2010-01-01'
+      r.reload
+      r._timeliness_raw_value_for(:publish_date).should be_nil
+    end
+  end
+
   context "before_type_cast method" do
     it 'should not be defined if ORM does not support it' do
       Article.instance_methods(false).should_not include("birth_datetime_before_type_cast")