[RUBY] Run raw sql in Hanami to get results not in columns

read and map

class UserRepository < Hanami::Repository
  def join_posts
    query = "SELECT users.id, posts.id as post_id FROM users JOINS posts"
    users.read(query).map.to_a
  end

  def age_average
    query = "SELECT avg(age) as age_average FROM users"
    users.read(query).map.first
  end
end


repo = UserRepository.new

repo.join_posts
=> [{:id=>1, :post_id=>2},
    {:id=>2, :post_id=>3}]
  
repo.age_average
=> {:age_average=>33}
   

This will throw a complex query I was addicted to it

reference

https://github.com/hanami/model/issues/477