48 lines
1.8 KiB
Python
48 lines
1.8 KiB
Python
from django.core.management.base import BaseCommand, CommandError
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from django.core import serializers
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from optparse import make_option
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class Command(BaseCommand):
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option_list = BaseCommand.option_list + (
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make_option('--format', default='json', dest='format',
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help='Specifies the output serialization format for fixtures.'),
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make_option('--indent', default=None, dest='indent', type='int',
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help='Specifies the indent level to use when pretty-printing output'),
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)
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help = 'Output the contents of the database as a fixture of the given format.'
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args = '[appname ...]'
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def handle(self, *app_labels, **options):
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from django.db.models import get_app, get_apps, get_models
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format = options.get('format', 'json')
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indent = options.get('indent', None)
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show_traceback = options.get('traceback', False)
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if len(app_labels) == 0:
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app_list = get_apps()
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else:
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app_list = [get_app(app_label) for app_label in app_labels]
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# Check that the serialization format exists; this is a shortcut to
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# avoid collating all the objects and _then_ failing.
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if format not in serializers.get_public_serializer_formats():
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raise CommandError("Unknown serialization format: %s" % format)
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try:
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serializers.get_serializer(format)
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except KeyError:
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raise CommandError("Unknown serialization format: %s" % format)
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objects = []
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for app in app_list:
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for model in get_models(app):
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objects.extend(model._default_manager.all())
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try:
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return serializers.serialize(format, objects, indent=indent)
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except Exception, e:
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if show_traceback:
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raise
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raise CommandError("Unable to serialize database: %s" % e)
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