Form helper for collection boxes

checkboxes

<%= form_for(@post) do |f| %>
    <%= f.label :name %><br>
    <%= f.text_field :name %><br>
    <%= f.label :content %><br>
    <%= f.text_area :content %><br>
    Tags:
    <%= f.collection_check_boxes :tag_ids, Tag.all, :id, :name %><br>
    <%= f.submit %>
<% end %>