From 77e0d06620724079caa88c5fdc5cc05e60cefe5a Mon Sep 17 00:00:00 2001
From: Brandon Keepers <brandon@opensoul.org>
Date: Mon, 6 May 2013 13:30:11 -0400
Subject: [PATCH] Accept an array of records

---
 lib/etagger.rb       | 3 ++-
 test/etagger_test.rb | 4 ++++
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/lib/etagger.rb b/lib/etagger.rb
index 56f39f3..0bdb76e 100644
--- a/lib/etagger.rb
+++ b/lib/etagger.rb
@@ -22,7 +22,8 @@ def fresh_when(record_or_options, additional_options = {})
   private
     def revise_etag(options, additional_options = nil)
       if !options.is_a?(Hash)
-        revise_etag({ etag: options, last_modified: options.try(:updated_at) }.merge(additional_options))
+        last_modified = options.respond_to?(:updated_at) ? options.updated_at : nil
+        revise_etag({ etag: options, last_modified: last_modified }.merge(additional_options))
       elsif etag = options[:etag]
         etags = etaggers.map { |etagger| instance_exec &etagger }.compact
         options.merge etag: [etag, *etags]
diff --git a/test/etagger_test.rb b/test/etagger_test.rb
index 229ead0..0ecf148 100644
--- a/test/etagger_test.rb
+++ b/test/etagger_test.rb
@@ -29,4 +29,8 @@ def setup
   def test_revises_etag
     assert_equal ['123', 'ab', :cde, [:f]], @controller.fresh_when(etag: '123')
   end
+
+  def test_updated_at_with_array
+    assert_equal [%w(1 2), 'ab', :cde, [:f]], @controller.fresh_when(%w(1 2))
+  end
 end