<%= twitter_bootstrap_form_for @collection, remote: true, html: { modal: true } do |f| %>
  <%= f.text_field :name, class: 'span5' %>
  <%= f.text_area :description, rows: 3, class: 'span5'  %>
  <%= f.select(:unit, "Unit", Admin::Collection.units) %>
    <%= f.submit class: 'btn btn-primary btn-stateful-loading', data: {loading_text: 'Saving...'} %>
    <a href="#" data-dismiss="modal" aria-hidden="true" class="btn">Cancel</a>
<% end %>

<%= twitter_bootstrap_form_for @collection, remote: true, html: { modal: true } do |f| %>
  <%= f.text_field :name, class: 'span5' %>
  <%= f.text_area :description, rows: 3, class: 'span5'  %>
	<% if can? :update_unit, @collection %>
		<%= f.select(:unit, "Unit", Admin::Collection.units) %>
	<% end %>	
	<%= f.submit class: 'btn btn-primary btn-stateful-loading', data: {loading_text: 'Saving...'} %>
	<a href="#" data-dismiss="modal" aria-hidden="true" class="btn">Cancel</a>
<% end %>

Remove unit drop-down from edit collections as editor
Remove unit drop-down from edit collections as editor

When logged in as an editor the unit select drop-down menu item will not appear.
