metamaps--metamaps/db/migrate/20160928022635_rename_node1_id_to_topic1_id_in_synapses.rb

class RenameNode1IdToTopic1IdInSynapses < ActiveRecord::Migration[5.0]
  def change
    rename_column :synapses, :node1_id, :topic1_id
    rename_column :synapses, :node2_id, :topic2_id
  end
end