How to list comment authors in a Rails application?

Question

ORM

There is a standard rails blog. Accordingly, there are posts in it and comments on the posts.
How to display a list of comment authors on a post page and the corresponding number of author comments on a post?

Answer 1

Using JOIN, GROUP, COUNT in a query.
Worth reading
guides.rubyonrails.org/active_record_querying.html...