method

in_order_of

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in_order_of(key, series, filter: true) public

Returns a new Array where the order has been set to that provided in the series, based on the key of the objects in the original enumerable.

[ Person.find(5), Person.find(3), Person.find(1) ].in_order_of(:id, [ 1, 5, 3 ])
# => [ Person.find(1), Person.find(5), Person.find(3) ]

If the series include keys that have no corresponding element in the Enumerable, these are ignored. If the Enumerable has additional elements that aren’t named in the series, these are not included in the result, unless the filter option is set to false.

Show source

# File activesupport/lib/active_support/core_ext/enumerable.rb, line 197
  def in_order_of(key, series, filter: true)
    if filter
      group_by(&key).values_at(*series).flatten(1).compact
    else
      sort_by { |v| series.index(v.public_send(key)) || series.size }.compact
    end
  end

in_order_of

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