<%= form_for(@mac) do |f| %>
<% if @mac.errors.any? %>
<%= pluralize(@mac.errors.count, "error") %> prohibited this MAC from being saved:
<% @mac.errors.full_messages.each do |msg| %>
- <%= msg %>
<% end %>
<% end %>
<%= f.label :user_id, "User" %>
<%= collection_select(:mac, :user_id, @users, :id, :name, :include_blank => true) %>
<%= f.label :mac %>
<%= f.text_field :mac, :value => (@mac.mac || @arp || nil) %>
<% if @arp.present? %>
Autodetected from your IP of <%= @ip %><% end %>
<%= f.label :note %>
<%= f.text_field :note %>
<%= f.label :hidden %>
<%= f.check_box :hidden %>
<%= f.submit %>
<% end %>