<%= form_for @product, html: { multipart: true } do |f| %> <%= render 'application/errors', model: @product %> <%= f.label :name %> <%= f.text_field :name %> <%= f.label :purchase_price %> <%= f.number_field :purchase_price %> <%= f.label :sale_price %> <%= f.number_field :sale_price %> <%= f.label :avatar %> <%= f.file_field :avatar %> <%= f.submit "Create product", class: "btn btn-primary" %> <% end %>