1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
|
from django.core.management.base import BaseCommand, CommandError
class Command(BaseCommand):
help = "Useless command."
def add_arguments(self, parser):
parser.add_argument(
"args",
metavar="app_label",
nargs="*",
help="Specify the app label(s) to works on.",
)
parser.add_argument("--empty", action="store_true", help="Do nothing.")
def handle(self, *app_labels, **options):
app_labels = set(app_labels)
if options["empty"]:
self.stdout.write()
self.stdout.write("Dave, I can't do that.")
return
if not app_labels:
raise CommandError("I'm sorry Dave, I'm afraid I can't do that.")
# raise an error if some --parameter is flowing from options to args
for app_label in app_labels:
if app_label.startswith("--"):
raise CommandError("Sorry, Dave, I can't let you do that.")
self.stdout.write("Dave, my mind is going. I can feel it. I can feel it.")
|
