Question

When a radio button is checked, the whole form is submitted. The answers_controller (below) does update the result, so everything works, but i get the aforementioned error in the console. I realize that in my update_result.js.erb (below) nothing is assigned to the @answers variable but i have been unable to make adjustments to it for the way i am passing the values.

answers_controller:

  def update_result
    params[:answer].each_pair do |key,value|
      @ans = Answer.find(key.to_i)
      @ans.update_attributes(:score => value)
    end
  end

update_result.js.erb:

$("#answers").html("<%=escape_javascript(render(@answers)) %>");

Thanks!

Answer 1

Change the action like this:

def update_result
  @answers = []

  params[:answer].each_pair do |key,value|
    ans = Answer.find(key.to_i)        
    ans.update_attributes(:score => value)
    @answers << ans
  end
end

Change the update_result.js.erb like this:

$("#answers").html("#{escape_javascript(render(@answers))}");