Sunspot solr doesn't indexing all models - ruby-on-rails

Question

I have a model Post. Also I have STI model Review. Here is search config for Post:
searchable do
text :title, :content
text :username do
user.try(:username)
end
text :user_full_name do
user.try(:full_name_with_username)
end
text :user_full_name_with_username do
user.try(:full_name_with_username)
end
end
The problem is, that not all models were indexed even if I add certain model through Sunspot.index(Review.find(id)) and Sunspot.commit
After indexing, I trying to find some reviews by username :
reviews_ids = Review.search do
fulltext params[:titles_search] do
fields(:username)
end
end.results.map(&:id)
and there are not all reviews in results.
What could it be? How to debug it?

Answer 1

The search results from Solr are always paginated so I suspect that you're not seeing all the results from your search. By default, I believe the results are paginated to 20 results per page.
To see all the search results at once you could do something like:
search = Review.search do
fulltext params[:titles_search] do
fields(:username)
end
paginate page: 1, per_page: Review.count
end
This sets the "number of elements per page" equal to the number of total Reviews. So this should allow you to see all the search results without paging. Obviously if you have a large number of Review objects, this is going to be a huge memory hog.
A better way to do it is to work with the pagination behavior, so if you rewrite your search like this:
def search_reviews(opts = {})
options = {
page: nil,
per_page: 20,
}.merge(opts)
Review.search do
fulltext params[:titles_search] do
fields(:username)
end
paginate page: options[:page] if options[:page].present?
paginate per_page: options[:per_page] if options[:per_page].present?
end.results
end
You can call it successively with different page numbers to get all your results.