rename openstruct type and fix test

Signed-off-by: David A. Cuadrado <krawek@gmail.com>

lib/mongoid_ext/paranoia.rb

@@ -86,7 +86,7 @@ def restore
           end
 
           def self.compact!(date = 1.month.ago)
-            self.delete_all(:created_at.lte => date)
+            self.delete_all(:created_at => {:$lte => date.to_time})
           end
 
           private

lib/mongoid_ext/types/open_struct.rb

@@ -1,17 +1,19 @@
 require 'ostruct'
 
-class OpenStruct
-  include Mongoid::Fields::Serializable
+module MongoidExt
+  class OpenStruct < ::OpenStruct
+    include Mongoid::Fields::Serializable
 
-  def serialize(value)
-    value.nil? ? nil : value.to_hash
-  end
+    def serialize(value)
+      value.nil? ? nil : value.to_hash
+    end
 
-  def deserialize(value)
-    value.nil? ? nil : OpenStruct.new(value || {})
-  end
+    def deserialize(value)
+      value.nil? ? nil : OpenStruct.new(value || {})
+    end
 
-  def to_hash
-    send(:table)
+    def to_hash
+      send(:table)
+    end
   end
 end

test/models.rb

@@ -41,7 +41,7 @@ class Avatar # for Storage and File
 
 class UserConfig #for OpenStruct
   include Mongoid::Document
-  field :entries, :type => OpenStruct
+  field :entries, :type => MongoidExt::OpenStruct
 end
 
 class User

test/types/test_open_struct.rb

@@ -11,7 +11,7 @@ def from_db
     end
 
     should "allow to add new keys" do
-      entries = OpenStruct.new()
+      entries = MongoidExt::OpenStruct.new()
       entries.new_key = "my new key"
       @config.entries = entries
       @config.save