def get(serial_number, internal=False):
res = None
installation = Installations_dao.get(serial_number)
if installation:
if internal or authentication.allow_viewing(installation.get('customer')):
res = installation
return res
def get_by_customer(customer_id):
res = None
if authentication.allow_viewing(customer_id):
res = Installations_dao.get_all(customer_id)
return res
