def raise_on_error(iris, status):
if status and status[0] != "1":
message = iris.classMethodValue("%SYSTEM.Status", "GetErrorText", status)
raise Exception(message)
class transaction:
def __init__(self, iris):
self.iris = iris
def __enter__(self):
self.iris.tStart()
def __exit__(self, exc_type, exc_value, traceback):
if exc_type:
self.iris.tRollback()
else:
self.iris.tCommit()