code: def contain(query_string, options = {:case_sensitive => false})
        do_comparison(query_string) do |comparator, item|
          if options[:case_sensitive]
            item =~ Regexp.new(comparator, Regexp::MULTILINE)
          else
            item =~ Regexp.new(comparator, Regexp::IGNORECASE | Regexp::MULTILINE)
          end
        end
      end
docs: performs a "like" query.
  
   Task.find(:work_group).contain('dev') => ['UI dev', 'Core dev', ...]