Reviews

The rating column uses a custom renderer — one partial in your app (_stars.html.erb) named by as: :stars. Search delegates through :book into Book's own search_in (try a publisher name). Your controller assigns @reviews.

crud_structure do
  search_in :reviewer_name, :body, :book   # :book delegates into Book's search_in
  attribute :rating, as: :stars            # → app/views/crud_components/fields/_stars.html.erb
  fieldset :index, %i[book reviewer_name rating body created_at]
end

<%= crud_collection @reviews %>

Read more: Renderers  ·  The like-spec