QuerySet.latest will raise an error if the criteria isn't met. This doesn't sound like what we want. If we have an empty database, there's just no last date the job run, so we should fetch all available records from Box.
$ python manage.py harvestPatrolLog
Traceback (most recent call last):
File "manage.py", line 22, in <module>
execute_from_command_line(sys.argv)
File "/home/adborden/.pyenv/versions/OakCrime/lib/python3.6/site-packages/django/core/management/__init__.py", line 364, in execute_from_command_line
utility.execute()
File "/home/adborden/.pyenv/versions/OakCrime/lib/python3.6/site-packages/django/core/management/__init__.py", line 356, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/home/adborden/.pyenv/versions/OakCrime/lib/python3.6/site-packages/django/core/management/base.py", line 283, in run_from_argv
self.execute(*args, **cmd_options)
File "/home/adborden/.pyenv/versions/OakCrime/lib/python3.6/site-packages/django/core/management/base.py", line 330, in execute
output = self.handle(*args, **options)
File "/home/adborden/projects/brigade/OakCrime/showCrime/dailyIncid/management/commands/harvestPatrolLog.py", line 389, in handle
lastDLogOC = OakCrime.objects.filter(source__contains='DLog_').latest('lastModDateTime')
File "/home/adborden/.pyenv/versions/OakCrime/lib/python3.6/site-packages/django/db/models/query.py", line 561, in latest
return self._earliest_or_latest(field_name=field_name, direction="-")
File "/home/adborden/.pyenv/versions/OakCrime/lib/python3.6/site-packages/django/db/models/query.py", line 555, in _earliest_or_latest
return obj.get()
File "/home/adborden/.pyenv/versions/OakCrime/lib/python3.6/site-packages/django/db/models/query.py", line 380, in get
self.model._meta.object_name
dailyIncid.models.DoesNotExist: OakCrime matching query does not exist.
QuerySet.latest will raise an error if the criteria isn't met. This doesn't sound like what we want. If we have an empty database, there's just no last date the job run, so we should fetch all available records from Box.