Commit 75c6484a by Őry Máté

common: add SubOperationMixin

parent 8f6b93ba
......@@ -26,6 +26,16 @@ from .models import activity_context, has_suffix, humanize_exception
logger = getLogger(__name__)
class SubOperationMixin(object):
def create_activity(self, parent, user, kwargs):
if not parent:
raise TypeError("SubOperation can only be called with "
"parent_activity specified.")
return super(SubOperationMixin, self).create_activity(
parent, user, kwargs)
class Operation(object):
"""Base class for VM operations.
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