Why when i try loaddata django_comments data from json|xml file i recieve
error:
django.db.models.fields.related_descriptors.RelatedObjectDoesNotExist:
Problem installing fixture
'/Users/stormy/dev/mezz/_backups/back_generic_django_comments.json':
Comment has no content_type.
Mezzanine 4.3.1
Django 1.11.20
Python 2.7.10
1. first i export data:
(env)Mini:mezz stormy$ python manage.py dumpdata generic django_comments
--format json --indent 4 > _backups/back_generic_django_comments.json
2. then i try loaddata:
(env)Mini:mezz stormy$ python manage.py loaddata
_backups/back_generic_django_comments.json
Traceback (most recent call last):
File "manage.py", line 14, in <module>
execute_from_command_line(sys.argv)
File
"/Users/stormy/dev/mezz/env/lib/python2.7/site-packages/django/core/management/__init__.py"
, line 364, in execute_from_command_line
utility.execute()
File
"/Users/stormy/dev/mezz/env/lib/python2.7/site-packages/django/core/management/__init__.py"
, line 356, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File
"/Users/stormy/dev/mezz/env/lib/python2.7/site-packages/django/core/management/base.py"
, line 283, in run_from_argv
self.execute(*args, **cmd_options)
File
"/Users/stormy/dev/mezz/env/lib/python2.7/site-packages/django/core/management/base.py"
, line 330, in execute
output = self.handle(*args, **options)
File
"/Users/stormy/dev/mezz/env/lib/python2.7/site-packages/django/core/management/commands/loaddata.py"
, line 69, in handle
self.loaddata(fixture_labels)
File
"/Users/stormy/dev/mezz/env/lib/python2.7/site-packages/django/core/management/commands/loaddata.py"
, line 109, in loaddata
self.load_label(fixture_label)
File
"/Users/stormy/dev/mezz/env/lib/python2.7/site-packages/django/core/management/commands/loaddata.py"
, line 175, in load_label
obj.save(using=self.using)
File
"/Users/stormy/dev/mezz/env/lib/python2.7/site-packages/django/core/serializers/base.py"
, line 205, in save
models.Model.save_base(self.object, using=using, raw=True, **kwargs)
File
"/Users/stormy/dev/mezz/env/lib/python2.7/site-packages/django/db/models/base.py"
, line 848, in save_base
update_fields=update_fields, raw=raw, using=using,
File
"/Users/stormy/dev/mezz/env/lib/python2.7/site-packages/django/dispatch/dispatcher.py"
, line 193, in send
for receiver in self._live_receivers(sender)
File
"/Users/stormy/dev/mezz/env/lib/python2.7/site-packages/mezzanine/generic/fields.py"
, line 100, in _related_items_changed
for_model = kwargs["instance"].content_type.model_class()
File
"/Users/stormy/dev/mezz/env/lib/python2.7/site-packages/django/db/models/fields/related_descriptors.py"
, line 194, in __get__
"%s has no %s." % (self.field.model.__name__, self.field.name)
django.db.models.fields.related_descriptors.RelatedObjectDoesNotExist:
Problem installing fixture
'/Users/stormy/dev/mezz/_backups/back_generic_django_comments.json': Comment
has no content_type.
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