lib/templates/erb/scaffold/_form.html.erb
<%# frozen_string_literal: true %>
<%%= simple_form_for @<%= singular_table_name %> do |f| %>
<%%= f.error_notification %>
<%%= f.error_notification message: f.object.errors[:base].to_sentence if f.object.errors[:base].present? %>
<%- attributes.each do |attribute| -%>
<%%= f.<%= attribute.reference? ? :association : :input %> :<%= attribute.name %> %>
<%- end -%>
<%%= f.button :submit %>
<%% end %>