Method: ActiveRecord::Migration#migrate

Defined in:
lib/active_record/migration.rb

#migrate(direction) ⇒ Object

Execute this migration in the named direction



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# File 'lib/active_record/migration.rb', line 548

def migrate(direction)
  return unless respond_to?(direction)

  case direction
  when :up   then announce "migrating"
  when :down then announce "reverting"
  end

  time   = nil
  ActiveRecord::Base.connection_pool.with_connection do |conn|
    time = Benchmark.measure do
      exec_migration(conn, direction)
    end
  end

  case direction
  when :up   then announce "migrated (%.4fs)" % time.real; write
  when :down then announce "reverted (%.4fs)" % time.real; write
  end
end