redmine_qbo_lineitems/app/views/items/_form.html.erb

<%= form_with model: @item, local: true do |f| %>

  <% if @item.errors.any? %>
    <div id="errorExplanation">
      <h2><%= pluralize(@item.errors.count, "error") %></h2>
      <ul>
        <% @item.errors.full_messages.each do |msg| %>
          <li><%= msg %></li>
        <% end %>
      </ul>
    </div>
  <% end %>

  <p>
    <%= f.label :name %><br>
    <%= f.text_field :name, required: true %>
  </p>

  <p>
    <%= f.label :sku %><br>
    <%= f.text_field :sku %>
  </p>

  <p>
    <%= f.label :description %><br>
    <%= f.text_area :description, rows: 3 %>
  </p>

  <p>
    <%= f.label :unit_price %><br>
    <%= f.number_field :unit_price, step: 0.01 %>
  </p>

  <p>
    <%= f.label :active %>
    <%= f.check_box :active %>
  </p>

  <p>
    <%= f.submit %>
  </p>

<% end %>