Creating Irreversible Migrations in Rails
Jul 25, 2014
This is not something I do very often (or that I recommend at all), but when you need to mark a migration as irreversible, this is how you would do it.
class Example < ActiveRecord::Migration
def up
# Make your change
end
def down
raise ActiveRecord::IrreversibleMigration
end
end
Again, use with care. Happy coding.