try to appease the angry Oracle

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@5808 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

activerecord/lib/active_record/base.rb

@@ -1979,7 +1979,7 @@ def query_attribute(attr_name)
         else
           column = self.class.columns_hash[attr_name]
           if column.nil?
-            if value !~ /[^0-9]/
+            if Numeric === value || value !~ /[^0-9]/
               !value.to_i.zero?
             else
               !value.blank?

activerecord/test/base_test.rb

@@ -314,7 +314,7 @@ def test_query_attribute_with_custom_fields
     object.string_value = "  "
     assert !object.string_value?
 
-    assert_equal "1", object.int_value
+    assert_equal 1, object.int_value.to_i
     assert object.int_value?
 
     object.int_value = "0"