<% invitations.each_slice(4) do |invitation_group| %> <% invitation_group.each do |invitation| %> <% end %>

<%= image_tag(RQRCode::QRCode.new(invitation.url).as_png( bit_depth: 1, border_modules: 4, color_mode: ChunkyPNG::COLOR_GRAYSCALE, color: "black", file: nil, fill: "white", module_px_size: 6, resize_exactly_to: false, resize_gte_to: false, size: 250 ).to_data_url) %>

<% invitation.guests.each do |guest| %> <%= content_tag(:li, guest.name) %> <% end %>

<% end %>