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@@ -2,8 +2,14 @@ class CommentSweeper < ActionController::Caching::Sweeper
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   include Mephisto::SweeperMethods
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   observe Comment
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-  def after_update(record)
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-    return if controller.nil?
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+  # only sweep updates, not creations
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+  # tagged 'lame hack'
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+  def before_save(record)
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+    @new = record.new_record?
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+  end
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+
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+  def after_save(record)
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+    return if controller.nil? || (@new && !record.approved?)
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     expire_overview_feed!
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     pages = CachedPage.find_by_reference(record.article)
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     expire_cached_pages "Expired pages referenced by #{record.class} ##{record.id}", *pages

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@@ -98,6 +98,17 @@ class CachingTest < ActionController::IntegrationTest
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     assert_cached contents(:welcome).full_permalink
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   end
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+  def test_should_expire_cache_on_new_comment_if_approved
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+    visitor = visit
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+    assert_caches_page contents(:welcome).full_permalink do
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+      visitor.read contents(:welcome)
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+    end
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+    
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+    visitor.comment_on contents(:welcome), :author => 'approved bob', :body => 'what a wonderful post.'
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+    
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+    assert_not_cached contents(:welcome).full_permalink
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+  end
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+
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   def test_should_expire_cache_when_comment_is_approved
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     visitor = visit
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     assert_caches_page contents(:welcome).full_permalink do