(self)
return result
Perform an SQL `ROLLBACK`
Perform an SQL `ROLLBACK`
Perform an SQL ROLLBACK
def rollback(self):
        """ Perform an SQL `ROLLBACK` """
        self.clear()
        self.postcommit.clear()
        self.prerollback.run()
        result = self._cnx.rollback()
        self._now = None
        self.postrollback.run()
        return result
def rollback ( self ) : self . clear ( ) self . postcommit . clear ( ) self . prerollback . run ( ) result = self . _cnx . rollback ( ) self . _now = None self . postrollback . run ( ) return result