Question

Is there any way to force will_paginate plugin to use counter_cache instead of using
SELECT count(*) query? I’ve heard that Model.count is using by default counter caches. So will_paginate must use size method. How I can change the way it gathers amount of objects to be paginated?

Answer 1

Assuming two models, Author and Comment, where Author has_many Comments using counter cache, you should be able to pass an option :total_entries to the paginate-method like this:

author = Author.first
posts  = author.posts.paginate :total_entries => author.posts_count

See more here: https://github.com/mislav/will_paginate/blob/master/lib/will_paginate/active_record.rb#L128