app/views/items/_collection_ui.html.erb
<%= turbo_frame_tag 'collection-management' do %>
<% if response_message %>
<div class="alert alert-info"><%= response_message %></div>
<% end %>
<% unless @collection_list.empty? %>
<div class='panel panel-default'>
<div class='panel-heading'>
<h3 class="panel-title">Remove existing collections</h3>
</div>
<div class='panel-body'>
<ul class='list-group'>
<% @collection_list.each do |collection| %>
<%= render 'collection_ui_line_item', collection_label: collection.label,
collection_id: collection.externalIdentifier,
item_id: @cocina.externalIdentifier %>
<% end %>
</div>
</div>
<% end %>
<div class='panel panel-default'>
<div class='panel-heading'>
<h3 class="panel-title">Add a collection</h3>
</div>
<div class='panel-body'>
<%= form_tag add_collection_item_path(@cocina.externalIdentifier) do %>
<div class='mb-3'>
<%= select_tag :collection, options_for_select(current_user.permitted_collections), class: 'form-select' %>
</div>
<button class='btn btn-primary'>Add Collection</button>
<% end %>
</div>
</div>
<% end %>