app/views/addresses/_address_form.html.haml
.row
.col-12
%label Addresses
#addresses
= f.fields_for :addresses do |address|
= render 'addresses/address_fields', f: address
.links
= link_to_add_association 'Add address', f,
:addresses, partial: 'addresses/address_fields',
class: 'btn btn-secondary btn-sm'
%br/