updateOrCreateFromFields is made to call updateOrCreateFromKeyName.
updateOrCreateFromFields called self._model.get_or_insert which only creates
new entities but doesn't update the properties if the entity already exists.
So updateOrCreateFromFields is now made to call updateOrCreateFromKeyName
which actually updates the entity properties if entity already exists.
Reviewed by: Lennard de Rijk
from django.db import transaction
class TransactionMiddleware(object):
"""
Transaction middleware. If this is enabled, each view function will be run
with commit_on_response activated - that way a save() doesn't do a direct
commit, the commit is done when a successful response is created. If an
exception happens, the database is rolled back.
"""
def process_request(self, request):
"""Enters transaction management"""
transaction.enter_transaction_management()
transaction.managed(True)
def process_exception(self, request, exception):
"""Rolls back the database and leaves transaction management"""
if transaction.is_dirty():
transaction.rollback()
transaction.leave_transaction_management()
def process_response(self, request, response):
"""Commits and leaves transaction management."""
if transaction.is_managed():
if transaction.is_dirty():
transaction.commit()
transaction.leave_transaction_management()
return response