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@@ -6,9 +6,7 @@
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       @comment.published = !CommentSetting.current.moderation
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       session[:comment_error] = @comment.errors if !@comment.save
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       article = Article[@comment.article_id]
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-      # Expire the main article index, and the article page itself
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-      expire_index
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-      expire_article(article)
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+      expire_all_pages
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       # Send e-mail notification if that setting is enabled
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       if CommentSetting.current.email_notification
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         email_params = { :from => CommentSetting.current.from_email, :to => CommentSetting.current.to_email, :subject => "New comment - RE: #{article.title}" }

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@@ -4,5 +4,13 @@
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   belongs_to :article
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   belongs_to :tag
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+
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+  before_destroy do |tagging|
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+    # If this is the last relevant tagging, reap tag.
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+    unless tagging.tag.taggings.count > 0
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+      tagging.tag.destroy!
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+    end
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+  end
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+
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 end