announce(message) Instance Public methods

new(name = self.class.name, version = nil) Class Public methods

migrate(direction) Class Public methods

load_schema_if_pending!() Class Public methods

disable_ddl_transaction!() Class Public methods Disable DDL transactions for this migration.

check_pending!(connection = Base.connection) Class Public methods

revert() Instance Public methods While executing the given block, the recorded will be in reverting mode. All commands recorded will end up being recorded reverted and in reverse order. For example: recorder.revert{ recorder.record(:rename_table, [:old, :new]) } # same effect as recorder.record(:rename_table, [:new, :old])

record(*command, &block) Instance Public methods record command. command should be a method name and arguments. For example: recorder.record(:method_name, [:arg1, :arg2])

inverse_of(command, args, &block) Instance Public methods Returns the inverse of the given command. For example: recorder.inverse_of(:rename_table, [:old, :new]) # => [:rename_table, [:new, :old]] This method will raise an IrreversibleMigration exception if it cannot invert the command.

change_table(table_name, options = {}) Instance Public methods