Update for Mongoid 3:

- Now requires Mongoid 3.0 as minimum version (this is the only version to support Rails 3.2)
- Upgrade specs/helpers for Mongoid 3
- Support Mongoid aliased field names (e.g. field :foo, as: bar, type: String). Includes spec
- Support before_type_cast on Mongoid. No code change was required for this, only a spec change.
- There was one mongoid spec that was previously marked pending. I've found that it now works on Mongoid 3.
- Removed some Mongoid 2.3 and earlier hacks, which simplifies the Mongoid ORM code.

Gemfile

@@ -13,7 +13,7 @@ gem 'appraisal'
 gem 'sqlite3'
 
 group :mongoid do
-  gem 'mongoid', '~> 2.3.0'
+  gem 'mongoid', '>= 3.0'
   gem 'bson_ext'
   gem 'system_timer', :platforms => [:ruby_18]
 end

lib/validates_timeliness/orm/mongoid.rb

@@ -6,7 +6,7 @@ module ValidatesTimeliness
       # It is best to use the plugin parser to avoid errors on a bad
       # field value in Mongoid. Parser will return nil rather than error.
 
-      module ClassMethods 
+      module ClassMethods
         public
 
         # Mongoid has no bulk attribute method definition hook. It defines
@@ -23,7 +23,7 @@ module ValidatesTimeliness
             Date => :date,
             Time => :time,
             DateTime => :datetime
-          }[fields[attr_name.to_s].type] || :datetime
+          }[fields[database_field_name(attr_name)].type] || :datetime
         end
 
         protected
@@ -33,31 +33,17 @@ module ValidatesTimeliness
 
           "#{var_name} = Timeliness::Parser.parse(value, :#{type})"
         end
-
       end
 
-      module Reload
-        def reload(*args)
-          _clear_timeliness_cache
-          super
-        end
+      def reload(*args)
+        _clear_timeliness_cache
+        super
       end
     end
   end
 end
- 
+
 module Mongoid::Document
   include ValidatesTimeliness::AttributeMethods
   include ValidatesTimeliness::ORM::Mongoid
-
-  # Pre-2.3 reload
-  if (instance_methods & ['reload', :reload]).present?
-    def reload_with_timeliness
-      _clear_timeliness_cache
-      reload_without_timeliness
-    end
-    alias_method_chain :reload, :timeliness
-  else
-    include ValidatesTimeliness::ORM::Mongoid::Reload
-  end
 end

spec/validates_timeliness/orm/mongoid_spec.rb

@@ -7,13 +7,13 @@ require 'mongoid'
 require 'validates_timeliness/orm/mongoid'
 
 Mongoid.configure do |config|
-  name = "validates_timeliness_test"
-  host = "localhost"
-  config.master = Mongo::Connection.new.db(name)
-  config.persist_in_safe_mode = false
+  config.connect_to('validates_timeliness_test')
 end
 
 describe ValidatesTimeliness, 'Mongoid' do
+  after(:each) do
+    Mongoid.purge!
+  end
 
   class Article
     include Mongoid::Document
@@ -47,16 +47,6 @@ describe ValidatesTimeliness, 'Mongoid' do
       record.errors[:publish_date].should be_empty
     end
 
-    it "should validate a invalid value string" do
-      begin
-        record.publish_date = 'not a date' 
-      rescue
-      end
-
-      record.valid?
-      record.errors[:publish_date].should_not be_empty
-    end
-
     it "should validate a nil value" do
       record.publish_date = nil
 
@@ -67,6 +57,8 @@ describe ValidatesTimeliness, 'Mongoid' do
 
   it 'should determine type for attribute' do
     Article.timeliness_attribute_type(:publish_date).should == :date
+    Article.timeliness_attribute_type(:publish_time).should == :time
+    Article.timeliness_attribute_type(:publish_datetime).should == :datetime
   end
   
   context "attribute write method" do
@@ -157,7 +149,7 @@ describe ValidatesTimeliness, 'Mongoid' do
           record.publish_datetime.should be_kind_of(DateTime)
         end
 
-        pending 'should parse string as current timezone' do
+        it 'should parse string as current timezone' do
           record.publish_datetime = '2010-06-01 12:00'
 
           record.publish_datetime.utc_offset.should eq Time.zone.utc_offset
@@ -176,8 +168,50 @@ describe ValidatesTimeliness, 'Mongoid' do
   end
 
   context "before_type_cast method" do
-    it 'should not be defined if ORM does not support it' do
-      Article.new.should_not respond_to(:publish_datetime_before_type_cast)
+    let(:record){ Article.new }
+
+    it 'should be defined on class if ORM supports it' do
+      record.should respond_to(:publish_datetime_before_type_cast)
+    end
+
+    it 'should return original value' do
+      record.publish_datetime = date_string = '2010-01-01'
+
+      record.publish_datetime_before_type_cast.should eq date_string
+    end
+
+    it 'should return attribute if no attribute assignment has been made' do
+      time = Time.zone.local(2010,01,01)
+      Article.create(:publish_datetime => time)
+      record = Article.last
+      record.publish_datetime_before_type_cast.should eq time.to_datetime
+    end
+
+    context "with plugin parser" do
+      with_config(:use_plugin_parser, true)
+
+      it 'should return original value' do
+        record.publish_datetime = date_string = '2010-01-31'
+        record.publish_datetime_before_type_cast.should eq date_string
+      end
+    end
+  end
+
+  context "with aliased fields" do
+    class ArticleWithAliasedFields
+      include Mongoid::Document
+      field :pd, as: :publish_date, :type => Date
+      field :pt, as: :publish_time, :type => Time
+      field :pdt, as: :publish_datetime, :type => DateTime
+      validates_date :publish_date, :allow_nil => true
+      validates_time :publish_time, :allow_nil => true
+      validates_datetime :publish_datetime, :allow_nil => true
+    end
+
+    it 'should determine type for attribute' do
+      ArticleWithAliasedFields.timeliness_attribute_type(:publish_date).should == :date
+      ArticleWithAliasedFields.timeliness_attribute_type(:publish_time).should == :time
+      ArticleWithAliasedFields.timeliness_attribute_type(:publish_datetime).should == :datetime
     end
   end
 end