% define_template "extent", jsonmodel_definition(:extent) do |form| %>
<%= form.label_and_select("portion", form.possible_options_for("portion", true)) %>
<%= form.label_and_textfield("number") %>
<%= form.label_and_select("extent_type", form.possible_options_for("extent_type", true)) %>
<%= form.label_and_textarea("container_summary") %>
<%= form.label_and_textarea("physical_details") %>
<%= form.label_and_textarea("dimensions") %>
<% end %>