sms-pager/app/views/parents/show.html.haml

%h2= @parent.name
%p= link_to 'edit', edit_parent_path(@parent)
%p Email: #{mail_to(@parent.email, nil, encode: 'hex')}
%p Phone: #{number_to_phone @parent.phone} #{page_link(@parent)}

- unless @parent.children.empty?
  %p Children:
  %ul
    - @parent.children.each do |child|
      %li
        = child.name
        = link_to 'remove', del_parenthood_path(@parent, child), method: :delete

%p Add Child:
:ruby
  select_options = options_from_collection_for_select(@more_children, :id, :name)
  html_options = {
    include_blank: false,
    prompt: 'Add a child to parent'
  }
= select_tag(:child, select_options, html_options)