# File lib/mongo/db.rb, line 613
    def profiling_level=(level)
      oh = BSON::OrderedHash.new
      oh[:profile] = case level
                     when :off
                       0
                     when :slow_only
                       1
                     when :all
                       2
                     else
                       raise "Error: illegal profiling level value #{level}"
                     end
      doc = command(oh, :check_response => false)
      ok?(doc) || raise(MongoDBError, "Error with profile command: #{doc.inspect}")
    end