pg_search with nested routes

Question

I installed pg_search for the first time and I'm trying to create a search for Books and Chapters. These are nested routes.

routes.rb:

resources :books do
  resources :chapters, except: [:index]
end

pgsearch results display the links to the information but the chapters link shows /chapters/17, when it should display /books/50/chapters/17.

search index view:

<h2>
 <%  @pg_searches.each do |pg_search| %>
  <p> <%= link_to pg_search.searchable.title, pg_search.searchable %> </p>
 <% end %>
<h2>

SearchesController

class SearchesController < ApplicationController

 def index
  @pg_searches = PgSearch.multisearch(params[:query])
 end
end

chapter.rb

include PgSearch
 multisearchable :against => [:title, :body]

book.rb

include PgSearch
 multisearchable :against => [:title, :description]

Here's the error message:

Couldn't find Book without an ID

def show
 **@book = Book.find(params[:book_id])**
 @chapters = Chapter.all
 @chapter = Chapter.find(params[:id])
 @table_of_contents = @chapter.table_of_contents

How do I get the correct routes?

Answer 1

I think your link_to path is missing the parent object in order to form the proper url. Because the router wants a URL of the form books/:id/chapters/:id , we also need to pass link_to for chapter a book object.

Try this:

https://gist.github.com/MichaelCPell/08fb6af5c27b0466366f