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def validate_permalink(attr_name)
    sanitize_permalink(permalink? ? attr_name : permalink)
end

1

@recipients = reply.case.users.map(&:email).delete(reply.created_by.email)*","

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4

  def download
    dl_opts = params[:dl].nil? ?   'attachment' : 'inline'
    dl_img  = params[:type].nil? ? "" : "_#{params[:type]}"
...

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def archive_files(source, glob_mask, destination)
  Dir.glob(File.join(source, glob_mask)) do |file| 
    should_copy_file = true
...