Rails: How to use scope to find an element in array of arrays

Question

I have an array of arrays like [[\"2\",\"3\"], [\"3\",\"1\"], [\"6\", \"1\"]]. The first element of each sub-array is the user ID and the second one is the number o

Answer 1

class Event
  scope :mybooking, ->(user_ids) { where(user_id: user_ids) }
end

Now it is possible to do in controller:

reservations = [["2","3"], ["3","1"], ["6", "1"]]
Event.mybooking(reservations.map(&:first))