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method

invert_remove_index

Importance_0
invert_remove_index(args) private

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# File activerecord/lib/active_record/migration/command_recorder.rb, line 172
        def invert_remove_index(args)
          table, options_or_column = *args
          if (options = options_or_column).is_a?(Hash)
            unless options[:column]
              raise ActiveRecord::IrreversibleMigration, "remove_index is only reversible if given a :column option."
            end
            options = options.dup
            [:add_index, [table, options.delete(:column), options]]
          elsif (column = options_or_column).present?
            [:add_index, [table, column]]
          end
        end
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