added support for mongoid

lib/xapit.rb

@@ -119,3 +119,4 @@ def symbolize_keys(arg)
 require 'xapit/client/model_adapters/abstract_model_adapter'
 require 'xapit/client/model_adapters/default_model_adapter'
 require 'xapit/client/model_adapters/active_record_adapter'
+require 'xapit/client/model_adapters/mongoid_adapter'

lib/xapit/client/model_adapters/active_record_adapter.rb

@@ -2,7 +2,7 @@ module Xapit
   module Client
     class ActiveRecordAdapter < AbstractModelAdapter
       def self.for_class?(model_class)
-        model_class <= ActiveRecord::Base
+        defined?(ActiveRecord::Base) && model_class <= ActiveRecord::Base
       end
 
       def setup

lib/xapit/client/model_adapters/mongoid_adapter.rb

@@ -0,0 +1,32 @@
+module Xapit
+  module Client
+    class MongoidAdapter < AbstractModelAdapter
+      def self.for_class?(model_class)
+        defined?(Mongoid::Document) && model_class <= Mongoid::Document
+      end
+
+      def setup
+        @model_class.after_create do |member|
+          member.class.xapit_index_builder.add_document(member) if Xapit.config[:enabled]
+        end
+        @model_class.after_update do |member|
+          member.class.xapit_index_builder.update_document(member) if Xapit.config[:enabled]
+        end
+        @model_class.after_destroy do |member|
+          member.class.xapit_index_builder.remove_document(member) if Xapit.config[:enabled]
+        end
+      end
+
+      def index_all
+        @model_class.all.each do |member|
+          member.class.xapit_index_builder.add_document(member)
+        end
+      end
+    end
+  end
+end
+
+if defined?(Mongoid::Document)
+  Mongoid::Document::ClassMethods.send(:include, Xapit::Client::Membership::ClassMethods)
+end
+