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# frozen_string_literal: true
module IdInOrdered
extend ActiveSupport::Concern
included do
scope :id_in_ordered, ->(ids) do
raise ArgumentError, "ids must be an array of integers" unless ids.is_a?(Enumerable) && ids.all?(Integer)
# No need to sort if no more than 1 and the sorting code doesn't work
# with an empty array
return id_in(ids) unless ids.count > 1
id_attribute = arel_table[:id]
id_in(ids)
.order(
Arel.sql("array_position(ARRAY[#{ids.join(',')}], #{id_attribute.relation.name}.#{id_attribute.name})"))
end
end
end
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