Question

I have the following code inside a helper in rails:

def custom_options_tag(opts={})
  ['am', 'pm'].each do |meridian|
    ["12", "01", "02", "03", "04", "05", "06", "07", "08", "09", "10", "11"].each do |time|
      if @event.send(opts[:method], opts[:arg]) == time.to_s + meridian
        engine = Haml::Engine.new("%option{:value => human_time, :selected => 'selected'}= human_time")
      else
        engine = Haml::Engine.new("%option{:value => human_time}= human_time")
      end
      engine.render(Object.new, :human_time => time.to_s + meridian)
    end
  end
end

My question is…
How can this code be rendered in my view?
It seems there is no way to render haml code that has gone through a loop inside a helper method.

To simplify things I’ve tried to render a paragraph 3 times…

def some_paragraph_helper
  3.times do
    engine = Haml::Engine.new("%p Some paragraph from helper")
    engine.render
  end
end

When I call the method…

some_paragraph_helper

…it outputs not the text but simply the number “3” without the paragraph tag. Note that it only shows the number “3” once… as if it was not going through the loop.

Thanks for helping.

LP

Answer 1

You need to return result of engine.render

def some_paragraph_helper
  result = ""
  3.times do
    engine = Haml::Engine.new("%p Some paragraph from helper")
    result << engine.render
  end
  result
end