sidebar_position: 2

title: Advanced Mode

“Advanced” searches Rails’s nested attributes functionality in order to
generate complex queries with nested AND/OR groupings, etc. This takes a bit
more work but can generate some pretty cool search interfaces that put a lot of
power in the hands of your users.

A notable drawback with these searches is
that the increased size of the parameter string will typically force you to use
the HTTP POST method instead of GET.

Tweak your routes

resources :people do
  collection do
    match 'search' => 'people#search', via: [:get, :post], as: :search
  end
end

Add a controller action

def search
  index
  render :index
end

Update your form

<%= search_form_for @q, url: search_people_path,
                        html: { method: :post } do |f| %>

Once you’ve done so, you can make use of the helpers in Ransack::Helpers::FormBuilder to
construct much more complex search forms, such as the one on the
demo app
(source code here).