Fragen, ob jemand anderes frustrierendes Verhalten bei Django-Migrationen erlebt. Ich habe einige verwandte Beiträge zu SO angeschaut, aber ich habe nichts gefunden, was dies spezifisch angeht.Django-Migrationen mit neuer Datenbank fehlgeschlagen
Das passiert mir immer, und es muss ein häufiges Szenario sein, also was fehlt mir?
Mein Szenario:
- Liste item
- ich eine Django-Anwendung erstellt haben, mit SQLite auf meinem lokalen Rechner Iterieren
- ich jetzt auf eine Produktion Postgresql db (AWS oder anderswo bereitstellen möchten)
- ich meine neue Datenbank eingerichtet, es auf meine Einstellungen hinzufügen und
python manage.py migrate
- ich einen SQL-Fehler mir zu sagen, laufen, dass einer meiner Modell Tabellen existiert nicht. Duh! Deshalb laufe ich migrieren.
- ich am Ende mit Tabellen von Hand zu machen, tun seltsame Dinge wie
python manage.py migrate <app_name> --fake
, die mit Paketen weitere Probleme schafft wiesimple_history
Ich bin sicher, es muss eine offensichtliche Antwort sein - was soll ich tun, um Datenbankschema in einer brandneuen, sauberen Datenbank einrichten?
EDIT: Traceback der Fehler Ich erhalte:
Wenn ich python manage.py migrate
auf einer leeren Datenbank ausführen, ich folgende Fehlermeldung erhalten:
(banzai-platform-django) ➜ src git:(master) ✗ ./manage.py migrate
Traceback (most recent call last):
File "/Users/joedavy/Dropbox/Apps/banzai-platform-django/lib/python3.6/site-packages/django/db/backends/utils.py", line 65, in execute
return self.cursor.execute(sql, params)
psycopg2.ProgrammingError: relation "events_event" does not exist
LINE 1: ...ents_event"."created", "events_event"."slug" FROM "events_ev...
^
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "./manage.py", line 22, in <module>
execute_from_command_line(sys.argv)
File "/Users/joedavy/Dropbox/Apps/banzai-platform-django/lib/python3.6/site-packages/django/core/management/__init__.py", line 363, in execute_from_command_line
utility.execute()
File "/Users/joedavy/Dropbox/Apps/banzai-platform-django/lib/python3.6/site-packages/django/core/management/__init__.py", line 355, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/Users/joedavy/Dropbox/Apps/banzai-platform-django/lib/python3.6/site-packages/django/core/management/base.py", line 283, in run_from_argv
self.execute(*args, **cmd_options)
File "/Users/joedavy/Dropbox/Apps/banzai-platform-django/lib/python3.6/site-packages/django/core/management/base.py", line 327, in execute
self.check()
File "/Users/joedavy/Dropbox/Apps/banzai-platform-django/lib/python3.6/site-packages/django/core/management/base.py", line 359, in check
include_deployment_checks=include_deployment_checks,
File "/Users/joedavy/Dropbox/Apps/banzai-platform-django/lib/python3.6/site-packages/django/core/management/commands/migrate.py", line 62, in _run_checks
issues.extend(super(Command, self)._run_checks(**kwargs))
File "/Users/joedavy/Dropbox/Apps/banzai-platform-django/lib/python3.6/site-packages/django/core/management/base.py", line 346, in _run_checks
return checks.run_checks(**kwargs)
File "/Users/joedavy/Dropbox/Apps/banzai-platform-django/lib/python3.6/site-packages/django/core/checks/registry.py", line 81, in run_checks
new_errors = check(app_configs=app_configs)
File "/Users/joedavy/Dropbox/Apps/banzai-platform-django/lib/python3.6/site-packages/django/core/checks/urls.py", line 16, in check_url_config
return check_resolver(resolver)
File "/Users/joedavy/Dropbox/Apps/banzai-platform-django/lib/python3.6/site-packages/django/core/checks/urls.py", line 26, in check_resolver
return check_method()
File "/Users/joedavy/Dropbox/Apps/banzai-platform-django/lib/python3.6/site-packages/django/urls/resolvers.py", line 254, in check
for pattern in self.url_patterns:
File "/Users/joedavy/Dropbox/Apps/banzai-platform-django/lib/python3.6/site-packages/django/utils/functional.py", line 35, in __get__
res = instance.__dict__[self.name] = self.func(instance)
File "/Users/joedavy/Dropbox/Apps/banzai-platform-django/lib/python3.6/site-packages/django/urls/resolvers.py", line 405, in url_patterns
patterns = getattr(self.urlconf_module, "urlpatterns", self.urlconf_module)
File "/Users/joedavy/Dropbox/Apps/banzai-platform-django/lib/python3.6/site-packages/django/utils/functional.py", line 35, in __get__
res = instance.__dict__[self.name] = self.func(instance)
File "/Users/joedavy/Dropbox/Apps/banzai-platform-django/lib/python3.6/site-packages/django/urls/resolvers.py", line 398, in urlconf_module
return import_module(self.urlconf_name)
File "/Users/joedavy/Dropbox/Apps/banzai-platform-django/lib/python3.6/importlib/__init__.py", line 126, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "<frozen importlib._bootstrap>", line 978, in _gcd_import
File "<frozen importlib._bootstrap>", line 961, in _find_and_load
File "<frozen importlib._bootstrap>", line 950, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 655, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 678, in exec_module
File "<frozen importlib._bootstrap>", line 205, in _call_with_frames_removed
File "/Users/joedavy/Dropbox/Apps/banzai-platform-django/src/banzai_platform/urls.py", line 67, in <module>
url(r'^registrations/', include('registrations.urls')),
File "/Users/joedavy/Dropbox/Apps/banzai-platform-django/lib/python3.6/site-packages/django/conf/urls/__init__.py", line 50, in include
urlconf_module = import_module(urlconf_module)
File "/Users/joedavy/Dropbox/Apps/banzai-platform-django/lib/python3.6/importlib/__init__.py", line 126, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "<frozen importlib._bootstrap>", line 978, in _gcd_import
File "<frozen importlib._bootstrap>", line 961, in _find_and_load
File "<frozen importlib._bootstrap>", line 950, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 655, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 678, in exec_module
File "<frozen importlib._bootstrap>", line 205, in _call_with_frames_removed
File "/Users/joedavy/Dropbox/Apps/banzai-platform-django/src/registrations/urls.py", line 3, in <module>
from .views import (
File "/Users/joedavy/Dropbox/Apps/banzai-platform-django/src/registrations/views.py", line 160, in <module>
class ConfirmEventListView(ListView):
File "/Users/joedavy/Dropbox/Apps/banzai-platform-django/src/registrations/views.py", line 164, in ConfirmEventListView
queryset = [obj for obj in events if obj.need_confirmation > 0]
File "/Users/joedavy/Dropbox/Apps/banzai-platform-django/lib/python3.6/site-packages/django/db/models/query.py", line 250, in __iter__
self._fetch_all()
File "/Users/joedavy/Dropbox/Apps/banzai-platform-django/lib/python3.6/site-packages/django/db/models/query.py", line 1118, in _fetch_all
self._result_cache = list(self._iterable_class(self))
File "/Users/joedavy/Dropbox/Apps/banzai-platform-django/lib/python3.6/site-packages/django/db/models/query.py", line 53, in __iter__
results = compiler.execute_sql(chunked_fetch=self.chunked_fetch)
File "/Users/joedavy/Dropbox/Apps/banzai-platform-django/lib/python3.6/site-packages/django/db/models/sql/compiler.py", line 894, in execute_sql
raise original_exception
File "/Users/joedavy/Dropbox/Apps/banzai-platform-django/lib/python3.6/site-packages/django/db/models/sql/compiler.py", line 884, in execute_sql
cursor.execute(sql, params)
File "/Users/joedavy/Dropbox/Apps/banzai-platform-django/lib/python3.6/site-packages/django/db/backends/utils.py", line 80, in execute
return super(CursorDebugWrapper, self).execute(sql, params)
File "/Users/joedavy/Dropbox/Apps/banzai-platform-django/lib/python3.6/site-packages/django/db/backends/utils.py", line 65, in execute
return self.cursor.execute(sql, params)
File "/Users/joedavy/Dropbox/Apps/banzai-platform-django/lib/python3.6/site-packages/django/db/utils.py", line 94, in __exit__
six.reraise(dj_exc_type, dj_exc_value, traceback)
File "/Users/joedavy/Dropbox/Apps/banzai-platform-django/lib/python3.6/site-packages/django/utils/six.py", line 685, in reraise
raise value.with_traceback(tb)
File "/Users/joedavy/Dropbox/Apps/banzai-platform-django/lib/python3.6/site-packages/django/db/backends/utils.py", line 65, in execute
return self.cursor.execute(sql, params)
django.db.utils.ProgrammingError: relation "events_event" does not exist
LINE 1: ...ents_event"."created", "events_event"."slug" FROM "events_ev...
Sie sollten beim Deployment keine Makemigrationen ausführen. Sie führen Makemigrationen aus, wenn Sie sich entwickeln. –
Wenn Sie jedoch einen Fehler erhalten, sollten Sie ihn zusammen mit dem vollständigen Traceback * posten. –
@DanielRoseman - um zu klären, mein erster Gedanke war es, manage.py zu migrieren, aber das gibt den gleichen Fehler. Ich habe den Fehler + traceback dem Beitrag hinzugefügt, falls das hilfreich ist. –