Greetings,
I am a mailman3 user and trying to migrate the database from sqlite to
mysql. I did it like here:
https://www.rockandnull.com/django-dumpdata/
Basically I exported the data from sqlite using "dumpdate" and try to
import using "loaddata". I did do "migrate --run-syncdb"
Unfortunatlly I get the error below. I am totally new to django. On the
mailman3 mailing list, folks pointed me here - this seems to be a django
issue?
Thank you inadvance for any help.
Moritz
Mailman Core Version GNU Mailman 3.3.5 (Tom Sawyer)
Mailman Core API Version 3.1
Mailman Core Python Version 3.8.13 (default, May 19 2022, 15:06:19)
[GCC 9.3.1 20200408 (Red Hat 9.3.1-2)]
Traceback (most recent call last):
File
"*/home/daneben/*.local/lib/python3.8/site-packages/django/db/models/fields/related_descriptors.py",
line 173, in __get__
rel_obj = self.field.get_cached_value(instance)
File
"*/home/daneben/*.local/lib/python3.8/site-packages/django/db/models/fields/mixins.py",
line 15, in get_cached_value
return instance._state.fields_cache[cache_name]
KeyError: 'starting_email'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "manage.py", line 10, in <module>
execute_from_command_line(sys.argv)
File
"*/home/daneben/*.local/lib/python3.8/site-packages/django/core/management/__init__.py",
line 419, in execute_from_command_line
utility.execute()
File
"*/home/daneben/*.local/lib/python3.8/site-packages/django/core/management/__init__.py",
line 413, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File
"*/home/daneben/*.local/lib/python3.8/site-packages/django/core/management/base.py",
line 354, in run_from_argv
self.execute(*args, **cmd_options)
File
"*/home/daneben/*.local/lib/python3.8/site-packages/django/core/management/base.py",
line 398, in execute
output = self.handle(*args, **options)
File
"*/home/daneben/*.local/lib/python3.8/site-packages/django/core/management/commands/loaddata.py",
line 78, in handle
self.loaddata(fixture_labels)
File
"*/home/daneben/*.local/lib/python3.8/site-packages/django/core/management/commands/loaddata.py",
line 123, in loaddata
self.load_label(fixture_label)
File
"*/home/daneben/*.local/lib/python3.8/site-packages/django/core/management/commands/loaddata.py",
line 190, in load_label
obj.save(using=self.using)
File
"*/home/daneben/*.local/lib/python3.8/site-packages/django/core/serializers/base.py",
line 223, in save
models.Model.save_base(self.object, using=using, raw=True, **kwargs)
File
"*/home/daneben/*.local/lib/python3.8/site-packages/django/db/models/base.py",
line 763, in save_base
pre_save.send(
File
"*/home/daneben/*.local/lib/python3.8/site-packages/django/dispatch/dispatcher.py",
line 180, in send
return [
File
"*/home/daneben/*.local/lib/python3.8/site-packages/django/dispatch/dispatcher.py",
line 181, in <listcomp>
(receiver, receiver(signal=self, sender=sender, **named))
File
"*/home/daneben/*.local/lib/python3.8/site-packages/hyperkitty/signals.py",
line 96, in Thread_on_pre_save
kwargs["instance"].on_pre_save()
File
"*/home/daneben/*.local/lib/python3.8/site-packages/hyperkitty/models/thread.py",
line 157, in on_pre_save
self.find_starting_email()
File
"*/home/daneben/*.local/lib/python3.8/site-packages/hyperkitty/models/thread.py",
line 149, in find_starting_email
if self.starting_email is not None:
File
"*/home/daneben/*.local/lib/python3.8/site-packages/django/db/models/fields/related_descriptors.py",
line 187, in __get__
rel_obj = self.get_object(instance)
File
"*/home/daneben/*.local/lib/python3.8/site-packages/django/db/models/fields/related_descriptors.py",
line 307, in get_object
return super().get_object(instance)
File
"*/home/daneben/*.local/lib/python3.8/site-packages/django/db/models/fields/related_descriptors.py",
line 154, in get_object
return qs.get(self.field.get_reverse_related_filter(instance))
File
"*/home/daneben/*.local/lib/python3.8/site-packages/django/db/models/query.py",
line 435, in get
raise self.model.DoesNotExist(
hyperkitty.models.email.DoesNotExist: Problem installing fixture
'/home/daneben/mailman-suite/datadump.json': Email matching query does not
exist.
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