Add custom lexorank column to ActiveRecord

[richardboehme]

To avoid confusion with the setup of column collations, that is needed to use this gem, it should be as simple as using

class AddRankToPages < ActiveRecord::Migration[7.0]
  def change
    add_column :pages, :rank, :lexorank
    add_index :pages, :rank, unique: true
  end
end

or

$ rails g migration AddRankTo<insert model name here> rank:lexorank:uniq

This can be achieved by adding a custom column type to ActiveRecord. An example can be found in the Money-Rails gem.