problems with haml to html/erb conversion

Question

Hello. I have the following excerpt in haml:

 %a.btn.btn-small.notes_campaign{:role => "button", :data => {:campaign_group_id => campaign_group.id}}
   %i.icon-tasks
   Notes

And drop to pass it to erb. My problem is in that date passage, later used in an ajax request. I’ve tried so many ways.

Someone’s been through it?