Clash Royale CLAN TAG#URR8PPP

Django custom command object ID not found

SOLVED:

The try - catch was finding something at a later step in the process

I moved these steps outside of the try - catch and resolved those issues

I'm trying to build a custom Django command which can be run against individual model objects

When I check in shell I see the object fine

>>> Obj.objects.get(id=1)
<Obj: the object I'm looking for>


My custom command however looks like the below:

# app/management/update.py
class Command(BaseCommand):
def add_arguments(self, parser):
parser.add_argument('--id')

def handle(self, *args, **options):
if options['id']:
try:
obj = Obj.objects.get(id=options['id'])
# do things
except:
raise CommandError('no object with ID: "%s"' % options['id'])
else:
# do other things


Running this I get the error message

>>> python manage.py update --id 1
CommandError: no object with ID: "1"


Any help appreciated.

Thanks

ID=1

ID=2

except

1 Answer
1

Id should be an integer, not a string.

parser.add_argument('--id', type=int)


By default, ArgumentParser objects read command-line arguments in as
simple strings. However, quite often the command-line string should
instead be interpreted as another type, like a float or int. The type
keyword argument of add_argument() allows any necessary type-checking
and type conversions to be performed.

ArgumentParser

float

int

type

add_argument()

https://docs.python.org/3/library/argparse.html#type

1

'1'

By clicking "Post Your Answer", you acknowledge that you have read our updated terms of service, privacy policy and cookie policy, and that your continued use of the website is subject to these policies.