Rails includes with scope

Question

I have a model called Author. An author has many Articles. Articles have a scope called .published that does: where(published: true).

I want to load the author, with the

Answer 1

Using:

class Articles < ActiveRecord::Base 
    scope :published, -> { where(articles: {published: true}) }
end

Define a scope on Autor

class Author < ActiveRecord::Base 
    scope :with_published_articles, -> { joins(:articles).merge(Articles.published) }
end

Or

Author.joins(:articles).merge(Articles.published).find(params[:author_id])