[PERSISTANCE] fixed getter methods for underscore-options of unsaved rec...

.gitignore

@@ -11,4 +11,5 @@ examples/*.html
 *.log
 .rvmrc
 .rbenv-version
+.idea/
 tmp/

lib/tire/model/persistence.rb

@@ -45,7 +45,7 @@ def self.included(base)
 
           ['_score', '_type', '_index', '_version', 'sort', 'highlight', '_explanation'].each do |attr|
             define_method("#{attr}=") { |value| @attributes ||= {}; @attributes[attr] = value }
-            define_method("#{attr}")  { @attributes[attr] }
+            define_method("#{attr}")  { @attributes.try(:[], attr) }
           end
 
           def self.search(*args, &block)

lib/tire/version.rb

@@ -1,5 +1,5 @@
 module Tire
-  VERSION   = "0.6.2"
+  VERSION   = "0.6.2.1"
 
   CHANGELOG =<<-END
     IMPORTANT CHANGES LATELY:

test/unit/model_persistence_test.rb

@@ -183,6 +183,10 @@ class << a
             assert_nothing_raised { PersistentArticle.new }
           end
 
+          should "have getter methods for underscore-attributes of unsaved models" do
+            assert_nothing_raised { PersistentArticle.new._version }
+          end
+
           should "have getter methods for attributes" do
             assert_not_nil @article.title
             assert_equal 'Test', @article.title