app/views/spree/favorite_products/_cart_form.html.erb
<%= form_for :order, url: populate_orders_path do |f| %>
<div class="row" id="inside-product-cart-form" data-hook="inside_product_cart_form" itemprop="offers" itemscope itemtype="https://schema.org/Offer">
<% if type == "product" %>
<%= hidden_field_tag "variant_id", item.master.id %>
<% else %>
<%= hidden_field_tag "variant_id", item.id %>
<% end %>
<% if item.price_in(current_currency) && !item.price.nil? %>
<div data-hook="product_price" class="col-md-5">
<div id="product-price">
<h6 class="product-section-title"><%= Spree.t(:price) %></h6>
<div>
<span class="lead price selling" itemprop="price" content="<%= item.price_in(current_currency).amount.to_d %>">
<%= display_price(item) %>
</span>
<span itemprop="priceCurrency" content="<%= current_currency %>"></span>
</div>
<% if (type == "product" && item.master.can_supply?) || ((type == "variant" && item.can_supply?)) %>
<link itemprop="availability" href="https://schema.org/InStock" />
<% else %>
<span class="out-of-stock"><%= Spree.t(:out_of_stock) %></span>
<% end %>
</div>
<% if item.can_supply? %>
<div class="add-to-cart">
<br />
<div class="input-group">
<%= hidden_field_tag :quantity, 1 %>
<span class="input-group-btn">
<%= button_tag class: 'btn btn-success', id: 'add-to-cart-button', type: :submit do %>
<%= Spree.t(:add_to_cart) %>
<% end %>
</span>
</div>
</div>
<% end %>
</div>
<% else %>
<div id="product-price">
<br />
<div>
<span class="price selling" itemprop="price">
<%= Spree.t('product_not_available_in_this_currency') %>
</span>
</div>
</div>
<% end %>
</div>
<% end %>