module ApplicationHelper
  
  def link_to_add_fields(name, f, association, classes = '')
    new_object = f.object.send(association).klass.new    
    id = new_object.object_id    
    fields = f.fields_for(association, new_object, child_index: id) do |builder|      
      render(association.to_s.singularize + "_form", f: builder)    
    end    
    link_to(name, '', class: "add_fields " + classes.to_s, data: {id: id, fields: fields.gsub("\n", "")})  
  end
  
end