Getting typed results from ActiveRecord raw SQL

Question

In Sequel, I can do:

irb(main):003:0> DB[\"select false\"].get
=> false

Which returns a false boolean. I\'d like to be able to do so

Answer 1

In Rails 6, Person.connection.select_all(sql_query).to_a

...will return an array of hashes whose values are type-casted. Example:

[{"id"=>12, "name"=>"John Doe", "vip_client"=>false, "foo"=> nil, "created_at"=>2018-01-24 23:55:58 UTC}]

If you prefer an OpenStruct, use Mike's suggestion:

Person.connection.select_all(sql_query).to_a.map {|r| OpenStruct.new(r) }

If you prefer symbols as keys, call map(&:symbolize_keys) after to_a.