app/views/geographic_items/edit.html.erb
<h1>Editing geographic item <%= @geographic_item.id %></h1>
<% if @geographic_item.georeferences.any? %>
<%= tag.p 'May not be used to updated shapes that are used in georeferences.', class: [:feedback, 'feedback-danger'] %>
<% else %>
Used in: <%= @geographic_item.geographic_areas.collect{|g| geographic_area_link(g)}.join(', ').html_safe %>
<br>
<%= form_for(@geographic_item.metamorphosize) do |f| %>
<div class="field">
<%= f.label 'shape' %>
<em>geoJSON format</em>
<br>
<%= f.text_area :shape, size: 60 %>
</div>
<div class="actions">
<%= f.submit %>
</div>
<% end %>
<% end %>
<%= link_to 'Show', @geographic_item.metamorphosize %>