{% form_theme formNewTicketPrinter 'bootstrap_3_layout.html.twig' %} {{ form_start(formNewTicketPrinter) }} {{ form_errors(formNewTicketPrinter) }} {{ form_row(formNewTicketPrinter.name) }} {{ form_row(formNewTicketPrinter.ticketWidth) }} {{ form_end(formNewTicketPrinter) }}