gistfile1.rb

  # search for feed items that match text and are parented by record_id, 
  # e.g. a specific group or record feed. page_size must be a number between
  # 1 and 100.  This method doesn't handle paging, so in most cases you'll want to also
  # add a page parameter to the query and continue to page even though no posts appear
  # for the searched group in some pages.
  def self.search_feed(user, record_id, text, page_size=100)
    escaped_text = URI.escape(text, Regexp.new("[^#{URI::PATTERN::UNRESERVED}]"))
    items = Session.do_get(user, "/chatter/feed-items?q=#{escaped_text}&pageSize=#{page_size}")
    # filter out items that are not part of the searched group
    output = []
    items['items'].each do |item|
      output << item if item['parent']['id'] == record_id
    end
    output
  end