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nsommer/medium-post-scope-1.rb

Last active June 6, 2020 14:36
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medium-post-scope-1.rb
class Article < ApplicationRecord
has_many :comments
has_many :tags
scope :draft, -> { where(published_at: nil) }
scope :published, -> { where.not(published_at: nil) }
scope :commented, -> { joins(:comments).distinct }
end
Article.published.count
# => 12
Article.published.commented.count
# => 5
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