<%= form_tag('./check_availability') do %>
  <p><label for="supplier_id">Supplier: </label>
  <%= select_tag "supplier_id", options_from_collection_for_select(@suppliers, "id", "name", @selected_supplier.try(:id)) %></p>

  <p><label for="codes"> 
    Codes to check:
  </label><br />
  <%= text_area_tag "codes", @codes_to_check, rows: 20, columns: 50 %></p>

  <p><%= submit_tag "Check" %></p>
<% end %>

<div>
<h2> In database: <%= @items.length %>, in file: <%= @codes_to_check_array.length %> </h2>
</div>

<div>
<h2>Not in database (<%= @missing_from_database.length %>): </h2>
<br />
<% @missing_from_database.each do |code| %>
  <%= code %><br /> 
<% end %>

</div>

<div>
<h2>Not in file (<%= @missing_from_codes.length %>): </h2>
<br />
<% @missing_from_codes.each do |code| %>
  <%= code %><br />
<% end %>

</div>

