django-constance/constance/management/commands/constance.py
2017-01-31 18:08:04 +01:00

67 lines
2.4 KiB
Python

# -*- coding: utf-8 -*-
from __future__ import unicode_literals
from django.core.exceptions import ValidationError
from django.core.management import BaseCommand, CommandError
from django.utils.translation import ugettext as _
from ... import config
from ...admin import ConstanceForm, get_values
def _set_constance_value(key, value):
"""
Parses and sets a Constance value from a string
:param key:
:param value:
:return:
"""
form = ConstanceForm(initial=get_values())
field = form.fields[key]
clean_value = field.clean(field.to_python(value))
setattr(config, key, clean_value)
class Command(BaseCommand):
help = _('Get/Set In-database config settings handled by Constance')
def add_arguments(self, parser):
subparsers = parser.add_subparsers(dest='command')
parser_list = subparsers.add_parser('list', cmd=self, help='list all Constance keys and their values')
parser_get = subparsers.add_parser('get', cmd=self, help='get the value of a Constance key')
parser_get.add_argument('key', help='name of the key to get', metavar='KEY')
parser_set = subparsers.add_parser('set', cmd=self, help='set the value of a Constance key')
parser_set.add_argument('key', help='name of the key to get', metavar='KEY')
# use nargs='+' so that we pass a list to MultiValueField (eg SplitDateTimeField)
parser_set.add_argument('value', help='value to set', metavar='VALUE', nargs='+')
def handle(self, command, key=None, value=None, *args, **options):
if command == 'get':
try:
self.stdout.write("{}".format(getattr(config, key)), ending="\n")
except AttributeError as e:
raise CommandError(key + " is not defined in settings.CONSTANCE_CONFIG")
elif command == 'set':
try:
if len(value) == 1:
# assume that if a single argument was passed, the field doesn't expect a list
value = value[0]
_set_constance_value(key, value)
except KeyError as e:
raise CommandError(key + " is not defined in settings.CONSTANCE_CONFIG")
except ValidationError as e:
raise CommandError(", ".join(e))
elif command == 'list':
for k, v in get_values().items():
self.stdout.write("{}\t{}".format(k, v), ending="\n")