<%= f.text_field :login %>
<%= f.text_field :email %>
<%= f.password_field :password %>
<%= f.password_field :password_confirmation %>
<%# f.hidden_field :admin_id, :value => '1' %>
<% unless current_user.nil? %>
<% if current_user.admin_id == 1 || current_user.admin_id == 2 %>
<%= collection_select 'user', 'admin_id', Admin.find(:all), 'id', 'name' %>
<% end %>
<% end %>
<% if User.find_by_id(1).nil? %>
<%= collection_select 'user', 'admin_id', Admin.find(:all), 'id', 'name' %>
<% end %>
<%= submit_tag 'Sign up' %>
<% end -%>