2020-11-24 15:15:51 +05:30
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# frozen_string_literal: true
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module IdInOrdered
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extend ActiveSupport::Concern
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included do
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scope :id_in_ordered, -> (ids) do
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2023-04-23 21:23:45 +05:30
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raise ArgumentError, "ids must be an array of integers" unless ids.is_a?(Enumerable) && ids.all?(Integer)
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2020-11-24 15:15:51 +05:30
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# No need to sort if no more than 1 and the sorting code doesn't work
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# with an empty array
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return id_in(ids) unless ids.count > 1
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id_attribute = arel_table[:id]
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id_in(ids)
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.order(
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Arel.sql("array_position(ARRAY[#{ids.join(',')}], #{id_attribute.relation.name}.#{id_attribute.name})"))
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end
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end
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end
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