gistfile1.txt

  def add_headers_and_higher_is_better
    test_ids = @table.keys - self.metadata_names
    tests = Testname.where(:id => test_ids)
    testnames_hash = Hash.new
    testdetails = Testdescription.where(:dashboard_id => @dashboard_id, :testname_id => test_ids)
    testdetails_hash = Hash[testdetails.collect{ |testdetail| [testdetail.testname_id, testdetail] }]
    tests.each do |test|
      if testdetails_hash[test.id]
        self.insert_higher_is_better(testdetails_hash[test.id])
      end
      testnames_hash[test.id] = test.testname
    end
    test_ids.each do |test_id|
      val = @table[test_id]
      @table.delete(test_id)
      testname = testnames_hash[test_id]
      @table[testname] = val
    end
	
    # All to sort the "only testnames" in the hash
    testnames = @table.keys - self.metadata_names
    temp = Hash.new
    self.metadata_names.each do | name |
      temp[name] = @table[name]
    end
    testnames.sort.each do |testname|
      temp[testname] = @table[testname]
    end
    @table = temp
  end  


Trace
RuntimeError (can't modify frozen String):
  app/models/table.rb:250:in `add_headers_and_higher_is_better'
  app/controllers/dashboard_controller.rb:56:in `block in prepare_results'
  app/controllers/dashboard_controller.rb:56:in `prepare_results'
  app/controllers/dashboard_controller.rb:82:in `show'

Line 250 == Line 7