apollo/app/views/subscriptions/_form.html.haml

= form_for @subscription do |f|
  %h2 Add a feed

  -if @subscription.errors.any?
    #error_explanation
      %h2= "#{pluralize(@subscription.errors.count, "error")} prohibited this feed from being saved:"
      %ul
        - @subscription.errors.full_messages.each do |msg|
          %li= msg

  .field
    = f.label "URL"
    = f.text_field :feed_url, :size => 120
    = f.hidden_field :layer_id, :value => @subscription.layer.id
    = f.submit 'Save', :id => 'submit'
  .actions