Where to put Django rest framework code in a Django project? - django

I'd like to know where/in which file I should put a set of DRF python code in a Django project. Here's why/what happening to me now.
As I'm trying to migrate from the default sqlite database to postgres, I have a trouble;
$ IS_PRODUCTION=true python manage.py showmigrations
..
django.db.utils.ProgrammingError: relation "django_content_type" does not exist
LINE 1: ..."."app_label", "django_content_type"."model" FROM "django_co...
that error tells me relation "django_content_type" does not exist, so I checked the stack trace in the error;
..
File "/root/pg/django/snippetapp/app/urls.py", line 623, in PostViewSet
_content_type_id = ContentType.objects.get_for_model(Post).id
..
It seems that I got the error because I have the set of DRF scripts on ./appname/urls.py,
and I imported/used ContentType, one of core Django classes in the file;
since it seemingly Django loads the top urls.py file in a very early phase, over dealing with ContentType stuff.
So, I guess I got to move the whole set of DRF, so where should I?
But one thing, I guess we have urlpatterns include-ing DRF router urls as such:
router = routers.DefaultRouter()
router.register(r'users', UserViewSet)
router.register(r'posts', PostViewSet)
..
urlpatterns = [
path('api/', include(router.urls)),
..
Then isn't we also need to have DRF scripts "before" the ./appname/urls.py -> urlpatterns...?
So I'd also like to know, when moving them to an another file cannot be an option, how can I solve/workaround the issue I have on importing ContentType in the urls.py?
Thanks.
Edit as requested
Here's the the PostViewSet that contains the imported ContentType in it;
from django.contrib.contenttypes.models import ContentType
..
class PostViewSet(viewsets.ModelViewSet):
"""
default Post viewset
"""
_site_id = settings.SITE_ID
# e.g. 3
_content_type_id = ContentType.objects.get_for_model(Post).id
# e.g. 12
comment_count = Comment.objects.filter(content_type_id=_content_type_id).filter(site_id=_site_id).filter(
object_pk=OuterRef('pk')).order_by().annotate(
count=Func(F('id'), function='COUNT')).values("count")
comments = Comment.objects.filter(content_type_id=_content_type_id).filter(site_id=_site_id).filter(
object_pk=OuterRef('pk'))
queryset = Post.objects.all().annotate(
vote_count=Count('voters'),
comment_count=Count('comments'),
# gets the comment count
comment02_count=Subquery(comment_count),
# gets the last comment
comment_last=Subquery(comments.order_by("-submit_date").values("comment")[:1]),
).all()
serializer_class = PostSerializer
permission_classes = [GeneralUserObjectPerm,]
filter_backends = [filters.OrderingFilter, DynamicSearchFilter,]
pagination_class = StandardResultsSetPagination
The entire stack track in the error
# IS_PRODUCTION=true python manage.py showmigrations
/root/pg/django/snippetapp/venv_linux_v2/lib/python3.7/site-packages/psycopg2/__init__.py:144: UserWarning: The psycopg2 wheel package will be renamed from release 2.8; in order to keep installing from binary please use "pip install psycopg2-binary" instead. For details see: <http://initd.org/psycopg/docs/install.html#binary-install-from-pypi>.
""")
Traceback (most recent call last):
File "/root/pg/django/snippetapp/venv_linux_v2/lib/python3.7/site-packages/django/db/backends/utils.py", line 84, in _execute
return self.cursor.execute(sql, params)
psycopg2.ProgrammingError: relation "django_content_type" does not exist
LINE 1: ..."."app_label", "django_content_type"."model" FROM "django_co...
^
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "manage.py", line 15, in <module>
execute_from_command_line(sys.argv)
File "/root/pg/django/snippetapp/venv_linux_v2/lib/python3.7/site-packages/django/core/management/__init__.py", line 401, in execute_from_command_line
utility.execute()
File "/root/pg/django/snippetapp/venv_linux_v2/lib/python3.7/site-packages/django/core/management/__init__.py", line 395, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/root/pg/django/snippetapp/venv_linux_v2/lib/python3.7/site-packages/django/core/management/base.py", line 330, in run_from_argv
self.execute(*args, **cmd_options)
File "/root/pg/django/snippetapp/venv_linux_v2/lib/python3.7/site-packages/django/core/management/base.py", line 368, in execute
self.check()
File "/root/pg/django/snippetapp/venv_linux_v2/lib/python3.7/site-packages/django/core/management/base.py", line 396, in check
databases=databases,
File "/root/pg/django/snippetapp/venv_linux_v2/lib/python3.7/site-packages/django/core/checks/registry.py", line 70, in run_checks
new_errors = check(app_configs=app_configs, databases=databases)
File "/root/pg/django/snippetapp/venv_linux_v2/lib/python3.7/site-packages/django/core/checks/urls.py", line 13, in check_url_config
return check_resolver(resolver)
File "/root/pg/django/snippetapp/venv_linux_v2/lib/python3.7/site-packages/django/core/checks/urls.py", line 23, in check_resolver
return check_method()
File "/root/pg/django/snippetapp/venv_linux_v2/lib/python3.7/site-packages/django/urls/resolvers.py", line 408, in check
for pattern in self.url_patterns:
File "/root/pg/django/snippetapp/venv_linux_v2/lib/python3.7/site-packages/django/utils/functional.py", line 48, in __get__
res = instance.__dict__[self.name] = self.func(instance)
File "/root/pg/django/snippetapp/venv_linux_v2/lib/python3.7/site-packages/django/urls/resolvers.py", line 589, in url_patterns
patterns = getattr(self.urlconf_module, "urlpatterns", self.urlconf_module)
File "/root/pg/django/snippetapp/venv_linux_v2/lib/python3.7/site-packages/django/utils/functional.py", line 48, in __get__
res = instance.__dict__[self.name] = self.func(instance)
File "/root/pg/django/snippetapp/venv_linux_v2/lib/python3.7/site-packages/django/urls/resolvers.py", line 582, in urlconf_module
return import_module(self.urlconf_name)
File "/root/.pyenv/versions/3.7.6/lib/python3.7/importlib/__init__.py", line 127, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "<frozen importlib._bootstrap>", line 1006, in _gcd_import
File "<frozen importlib._bootstrap>", line 983, in _find_and_load
File "<frozen importlib._bootstrap>", line 967, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 677, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 728, in exec_module
File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
File "/root/pg/django/snippetapp/app/urls.py", line 615, in <module>
class PostViewSet(viewsets.ModelViewSet):
File "/root/pg/django/snippetapp/app/urls.py", line 623, in PostViewSet
_content_type_id = ContentType.objects.get_for_model(Post).id
File "/root/pg/django/snippetapp/venv_linux_v2/lib/python3.7/site-packages/django/contrib/contenttypes/models.py", line 51, in get_for_model
ct = self.get(app_label=opts.app_label, model=opts.model_name)
File "/root/pg/django/snippetapp/venv_linux_v2/lib/python3.7/site-packages/django/db/models/manager.py", line 85, in manager_method
return getattr(self.get_queryset(), name)(*args, **kwargs)
File "/root/pg/django/snippetapp/venv_linux_v2/lib/python3.7/site-packages/django/db/models/query.py", line 425, in get
num = len(clone)
File "/root/pg/django/snippetapp/venv_linux_v2/lib/python3.7/site-packages/django/db/models/query.py", line 269, in __len__
self._fetch_all()
File "/root/pg/django/snippetapp/venv_linux_v2/lib/python3.7/site-packages/django/db/models/query.py", line 1308, in _fetch_all
self._result_cache = list(self._iterable_class(self))
File "/root/pg/django/snippetapp/venv_linux_v2/lib/python3.7/site-packages/django/db/models/query.py", line 53, in __iter__
results = compiler.execute_sql(chunked_fetch=self.chunked_fetch, chunk_size=self.chunk_size)
File "/root/pg/django/snippetapp/venv_linux_v2/lib/python3.7/site-packages/django/db/models/sql/compiler.py", line 1156, in execute_sql
cursor.execute(sql, params)
File "/root/pg/django/snippetapp/venv_linux_v2/lib/python3.7/site-packages/django/db/backends/utils.py", line 66, in execute
return self._execute_with_wrappers(sql, params, many=False, executor=self._execute)
File "/root/pg/django/snippetapp/venv_linux_v2/lib/python3.7/site-packages/django/db/backends/utils.py", line 75, in _execute_with_wrappers
return executor(sql, params, many, context)
File "/root/pg/django/snippetapp/venv_linux_v2/lib/python3.7/site-packages/django/db/backends/utils.py", line 84, in _execute
return self.cursor.execute(sql, params)
File "/root/pg/django/snippetapp/venv_linux_v2/lib/python3.7/site-packages/django/db/utils.py", line 90, in __exit__
raise dj_exc_value.with_traceback(traceback) from exc_value
File "/root/pg/django/snippetapp/venv_linux_v2/lib/python3.7/site-packages/django/db/backends/utils.py", line 84, in _execute
return self.cursor.execute(sql, params)
django.db.utils.ProgrammingError: relation "django_content_type" does not exist
LINE 1: ..."."app_label", "django_content_type"."model" FROM "django_co...
#

Related

Django Migration Problem with URL Configuration

When we started our Django project we created migrations and migrated, but now, when we want to alter the data model and run makemigrations we get a large error message (see below). After tracing back the message I discovered that when I comment the path('', include('quizarchiv.urls')), lie while running migrations everything is fine. So I guess that I got two questions:
Why does this workaround work (at least for creating the migrations)?
How do we adjust our project to work with migrations again?
This is the part of our models.py (it's rather long):
class questioncategory(models.Model):
cat_id = models.AutoField(primary_key=True)
cat_name = models.CharField(max_length=255, unique=True)
class question(models.Model):
q_id = models.AutoField(primary_key=True)
q_title = models.CharField(max_length=255, unique=True)
q_question = models.CharField(max_length=1000)
f_kat = models.ForeignKey(questioncategory, on_delete=models.PROTECT)
Full error message:
COMPUTER:FOLDER USERNAME$ python3 manage.py migrate
Traceback (most recent call last):
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/db/backends/utils.py", line 84, in _execute
return self.cursor.execute(sql, params)
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/db/backends/sqlite3/base.py", line 383, in execute
return Database.Cursor.execute(self, query, params)
sqlite3.OperationalError: no such table: questioncategory
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "manage.py", line 21, in <module>
main()
File "manage.py", line 17, in main
execute_from_command_line(sys.argv)
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/core/management/__init__.py", line 381, in execute_from_command_line
utility.execute()
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/core/management/__init__.py", line 375, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/core/management/base.py", line 323, in run_from_argv
self.execute(*args, **cmd_options)
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/core/management/base.py", line 361, in execute
self.check()
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/core/management/base.py", line 390, in check
include_deployment_checks=include_deployment_checks,
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/core/management/commands/migrate.py", line 65, in _run_checks
issues.extend(super()._run_checks(**kwargs))
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/core/management/base.py", line 377, in _run_checks
return checks.run_checks(**kwargs)
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/core/checks/registry.py", line 72, in run_checks
new_errors = check(app_configs=app_configs)
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/core/checks/urls.py", line 40, in check_url_namespaces_unique
all_namespaces = _load_all_namespaces(resolver)
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/core/checks/urls.py", line 57, in _load_all_namespaces
url_patterns = getattr(resolver, 'url_patterns', [])
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/utils/functional.py", line 80, in __get__
res = instance.__dict__[self.name] = self.func(instance)
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/urls/resolvers.py", line 571, in url_patterns
patterns = getattr(self.urlconf_module, "urlpatterns", self.urlconf_module)
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/utils/functional.py", line 80, in __get__
res = instance.__dict__[self.name] = self.func(instance)
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/urls/resolvers.py", line 564, in urlconf_module
return import_module(self.urlconf_name)
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/importlib/__init__.py", line 127, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "<frozen importlib._bootstrap>", line 1006, in _gcd_import
File "<frozen importlib._bootstrap>", line 983, in _find_and_load
File "<frozen importlib._bootstrap>", line 967, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 677, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 728, in exec_module
File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
File "/Users/USERNAME/PROJECTPATH/web/web/urls.py", line 22, in <module>
path('', include('quiz.urls')),
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/urls/conf.py", line 34, in include
urlconf_module = import_module(urlconf_module)
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/importlib/__init__.py", line 127, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "<frozen importlib._bootstrap>", line 1006, in _gcd_import
File "<frozen importlib._bootstrap>", line 983, in _find_and_load
File "<frozen importlib._bootstrap>", line 967, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 677, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 728, in exec_module
File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
File "/Users/USERNAME/PROJECTPATH/web/quizarchiv/urls.py", line 2, in <module>
from . import views
File "/Users/USERNAME/PROJECTPATH/web/quizarchiv/views.py", line 20, in <module>
from .forms import ErstelleFrage, ErstelleSession, ErstelleAsset, ErstelleHinweis, ErstelleTeam, ErstelleKategorie
File "/Users/USERNAME/PROJECTPATH/web/quizarchiv/forms.py", line 8, in <module>
class ErstelleFrage(forms.Form):
File "/Users/USERNAME/PROJECTPATH/web/quizarchiv/forms.py", line 12, in ErstelleFrage
f_kategorie = forms.ChoiceField(choices=[(kat.kategorie_id, kat.k_name) for kat in FrageKategorie.objects.all()], label="Kategorie")
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/db/models/query.py", line 274, in __iter__
self._fetch_all()
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/db/models/query.py", line 1242, in _fetch_all
self._result_cache = list(self._iterable_class(self))
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/db/models/query.py", line 55, in __iter__
results = compiler.execute_sql(chunked_fetch=self.chunked_fetch, chunk_size=self.chunk_size)
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/db/models/sql/compiler.py", line 1097, in execute_sql
cursor.execute(sql, params)
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/db/backends/utils.py", line 99, in execute
return super().execute(sql, params)
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/db/backends/utils.py", line 67, in execute
return self._execute_with_wrappers(sql, params, many=False, executor=self._execute)
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/db/backends/utils.py", line 76, in _execute_with_wrappers
return executor(sql, params, many, context)
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/db/backends/utils.py", line 84, in _execute
return self.cursor.execute(sql, params)
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/db/utils.py", line 89, in __exit__
raise dj_exc_value.with_traceback(traceback) from exc_value
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/db/backends/utils.py", line 84, in _execute
return self.cursor.execute(sql, params)
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/db/backends/sqlite3/base.py", line 383, in execute
return Database.Cursor.execute(self, query, params)
django.db.utils.OperationalError: no such table: questioncategory
The problem is not your url include. The problem is that in your ErstelleFrage form you are performing a query at class level, which is executed on import; it's just that the include is the thing that is causing that form to be imported.
You should never do queries in field or form definitions like this. In this particular case, you should be using ModelChoiceField with a queryset rather than ChoiceField with an explicitly selected set of choices.

Django Setup: No Such Table auth_user

Every time we set up our Django project in a new environment and try to initiate the server (migrate or runserver) the error message django.db.utils.OperationalError: no such table: auth_user shows (full error message below).
I am assuming this comes from using the user model as a foreign key in some of our models (example seen below) and as a new system is set up (no database created yet) Django tries to create the table for our custom model and fails because of the foreign key -the user table- as it wasn't created yet.
# Model for projects (example)
class Projekt(models.Model):
project_name = models.CharField(max_length=100, unique=True)
project_manager = models.ForeignKey(User, related_name="Manager", on_delete=models.DO_NOTHING)
My question is: is there any best practice on what to do to prevent this? For now, we are just copying the database from our running systems for every new developer we are getting, which works for now, but is not valid for open source distribution of the software.
I tried different stuff like this and this) already, but this didn't work out. I encountered this problem in each and every of my Django projects.
USERNAME$ python3 manage.py migrate
Traceback (most recent call last):
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/db/backends/utils.py", line 85, in _execute
return self.cursor.execute(sql, params)
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/db/backends/sqlite3/base.py", line 296, in execute
return Database.Cursor.execute(self, query, params)
sqlite3.OperationalError: no such table: auth_user
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "manage.py", line 15, in <module>
execute_from_command_line(sys.argv)
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/core/management/__init__.py", line 381, in execute_from_command_line
utility.execute()
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/core/management/__init__.py", line 375, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/core/management/base.py", line 316, in run_from_argv
self.execute(*args, **cmd_options)
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/core/management/base.py", line 350, in execute
self.check()
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/core/management/base.py", line 379, in check
include_deployment_checks=include_deployment_checks,
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/core/management/commands/migrate.py", line 60, in _run_checks
issues.extend(super()._run_checks(**kwargs))
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/core/management/base.py", line 366, in _run_checks
return checks.run_checks(**kwargs)
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/core/checks/registry.py", line 71, in run_checks
new_errors = check(app_configs=app_configs)
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/core/checks/urls.py", line 40, in check_url_namespaces_unique
all_namespaces = _load_all_namespaces(resolver)
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/core/checks/urls.py", line 57, in _load_all_namespaces
url_patterns = getattr(resolver, 'url_patterns', [])
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/utils/functional.py", line 37, in __get__
res = instance.__dict__[self.name] = self.func(instance)
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/urls/resolvers.py", line 533, in url_patterns
patterns = getattr(self.urlconf_module, "urlpatterns", self.urlconf_module)
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/utils/functional.py", line 37, in __get__
res = instance.__dict__[self.name] = self.func(instance)
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/urls/resolvers.py", line 526, in urlconf_module
return import_module(self.urlconf_name)
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/importlib/__init__.py", line 127, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "<frozen importlib._bootstrap>", line 1006, in _gcd_import
File "<frozen importlib._bootstrap>", line 983, in _find_and_load
File "<frozen importlib._bootstrap>", line 967, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 677, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 728, in exec_module
File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
File "/USERNAME/Documents/PROJECTS/PROJECTFOLDER/PROJECT_NAME/urls.py", line 8, in <module>
path('i/', include('APP1.urls')), # Private space/ Development space
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/urls/conf.py", line 34, in include
urlconf_module = import_module(urlconf_module)
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/importlib/__init__.py", line 127, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "<frozen importlib._bootstrap>", line 1006, in _gcd_import
File "<frozen importlib._bootstrap>", line 983, in _find_and_load
File "<frozen importlib._bootstrap>", line 967, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 677, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 728, in exec_module
File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
File "/USERNAME/Documents/PROJECTS/PROJECTFOLDER/APP1/urls.py", line 4, in <module>
from . import views
File "/USERNAME/Documents/PROJECTS/PROJECTFOLDER/APP1/views.py", line 11, in <module>
from .forms import AddProject, AddTicket
File "/USERNAME/Documents/PROJECTS/PROJECTFOLDER/APP1/forms.py", line 5, in <module>
class AddProject(forms.Form):
File "/USERNAME/Documents/PROJECTS/PROJECTFOLDER/APP1/forms.py", line 7, in AddProject
project_manager = forms.ChoiceField(choices=[(user.id, user) for user in User.objects.all()])
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/db/models/query.py", line 268, in __iter__
self._fetch_all()
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/db/models/query.py", line 1186, in _fetch_all
self._result_cache = list(self._iterable_class(self))
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/db/models/query.py", line 54, in __iter__
results = compiler.execute_sql(chunked_fetch=self.chunked_fetch, chunk_size=self.chunk_size)
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/db/models/sql/compiler.py", line 1065, in execute_sql
cursor.execute(sql, params)
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/db/backends/utils.py", line 100, in execute
return super().execute(sql, params)
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/db/backends/utils.py", line 68, in execute
return self._execute_with_wrappers(sql, params, many=False, executor=self._execute)
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/db/backends/utils.py", line 77, in _execute_with_wrappers
return executor(sql, params, many, context)
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/db/backends/utils.py", line 85, in _execute
return self.cursor.execute(sql, params)
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/db/utils.py", line 89, in __exit__
raise dj_exc_value.with_traceback(traceback) from exc_value
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/db/backends/utils.py", line 85, in _execute
return self.cursor.execute(sql, params)
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/db/backends/sqlite3/base.py", line 296, in execute
return Database.Cursor.execute(self, query, params)
django.db.utils.OperationalError: no such table: auth_user
Add migrations folder to git. This contains the information needed to create a new database correctly.
You should add your migrations to version control and deploy them along with the rest of your code base.
If you have a lot of migrations which are now superfluous, you can squash them.
I maybe late to answering this question but same happened to me what i did was, deleted pycache files from my app and related migration files and then also deleted the database file in my case sqlite file
I was using PyCharm and had the working directory set incorrectly in the debug config. Needs to point to the directory with manage.py in it. Probably not the issue for creyD, but might help others.

Initial local Django mysql database

I have joined a team working on a Django project, and I am trying to setup the local mysql database schema. This project has existed for a long time, so there are existing migrations.
I have created the empty database in mysql, but when I try to apply migrations to create the schema, it complains that the tables don't exist yet.
$ ./manage.py migrate
Traceback (most recent call last):
File "/Users/rnapier/.pyenv/versions/api-3.6.6/lib/python3.6/site-packages/django/db/backends/utils.py", line 85, in _execute
return self.cursor.execute(sql, params)
File "/Users/rnapier/.pyenv/versions/api-3.6.6/lib/python3.6/site-packages/django/db/backends/mysql/base.py", line 71, in execute
return self.cursor.execute(query, args)
File "/Users/rnapier/.pyenv/versions/api-3.6.6/lib/python3.6/site-packages/MySQLdb/cursors.py", line 250, in execute
self.errorhandler(self, exc, value)
File "/Users/rnapier/.pyenv/versions/api-3.6.6/lib/python3.6/site-packages/MySQLdb/connections.py", line 50, in defaulterrorhandler
raise errorvalue
File "/Users/rnapier/.pyenv/versions/api-3.6.6/lib/python3.6/site-packages/MySQLdb/cursors.py", line 247, in execute
res = self._query(query)
File "/Users/rnapier/.pyenv/versions/api-3.6.6/lib/python3.6/site-packages/MySQLdb/cursors.py", line 411, in _query
rowcount = self._do_query(q)
File "/Users/rnapier/.pyenv/versions/api-3.6.6/lib/python3.6/site-packages/MySQLdb/cursors.py", line 374, in _do_query
db.query(q)
File "/Users/rnapier/.pyenv/versions/api-3.6.6/lib/python3.6/site-packages/MySQLdb/connections.py", line 277, in query
_mysql.connection.query(self, query)
_mysql_exceptions.ProgrammingError: (1146, "Table 'api_test.headset_product' doesn't exist")
I've also tried syncdb, migrate --run-syncdb, and makemigrations with the same results. I've also tried loaddata with our fixtures, with the same results.
I've read Django : Table doesn't exist, but I didn't drop tables in this case (no tables have ever existed), and I don't want to recreate all the migrations (I'm not the only person on this project).
I have a related project that uses a local postgresql database, and it doesn't seem to have this problem. I can run migrate and it does just what I expect, so it feels that I've run into a problem specific to this codebase, but we aren't certain how to debug it.
"full output of makemigrations, including the full typed command."
$ ./manage.py makemigrations
[WARNING] statsd not configured
[WARNING] SMTP not configured; emails will not be sent
[WARNING] V1 database access not configured
Traceback (most recent call last):
File "/Users/rnapier/.pyenv/versions/api-3.6.6/lib/python3.6/site-packages/django/db/backends/utils.py", line 85, in _execute
return self.cursor.execute(sql, params)
File "/Users/rnapier/.pyenv/versions/api-3.6.6/lib/python3.6/site-packages/django/db/backends/mysql/base.py", line 71, in execute
return self.cursor.execute(query, args)
File "/Users/rnapier/.pyenv/versions/api-3.6.6/lib/python3.6/site-packages/MySQLdb/cursors.py", line 250, in execute
self.errorhandler(self, exc, value)
File "/Users/rnapier/.pyenv/versions/api-3.6.6/lib/python3.6/site-packages/MySQLdb/connections.py", line 50, in defaulterrorhandler
raise errorvalue
File "/Users/rnapier/.pyenv/versions/api-3.6.6/lib/python3.6/site-packages/MySQLdb/cursors.py", line 247, in execute
res = self._query(query)
File "/Users/rnapier/.pyenv/versions/api-3.6.6/lib/python3.6/site-packages/MySQLdb/cursors.py", line 411, in _query
rowcount = self._do_query(q)
File "/Users/rnapier/.pyenv/versions/api-3.6.6/lib/python3.6/site-packages/MySQLdb/cursors.py", line 374, in _do_query
db.query(q)
File "/Users/rnapier/.pyenv/versions/api-3.6.6/lib/python3.6/site-packages/MySQLdb/connections.py", line 277, in query
_mysql.connection.query(self, query)
_mysql_exceptions.ProgrammingError: (1146, "Table 'reign_api_test.headset_product' doesn't exist")
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "./manage.py", line 14, in <module>
execute_from_command_line(sys.argv)
File "/Users/rnapier/.pyenv/versions/api-3.6.6/lib/python3.6/site-packages/django/core/management/__init__.py", line 371, in execute_from_command_line
utility.execute()
File "/Users/rnapier/.pyenv/versions/api-3.6.6/lib/python3.6/site-packages/django/core/management/__init__.py", line 365, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/Users/rnapier/.pyenv/versions/api-3.6.6/lib/python3.6/site-packages/django/core/management/base.py", line 288, in run_from_argv
self.execute(*args, **cmd_options)
File "/Users/rnapier/.pyenv/versions/api-3.6.6/lib/python3.6/site-packages/django/core/management/base.py", line 332, in execute
self.check()
File "/Users/rnapier/.pyenv/versions/api-3.6.6/lib/python3.6/site-packages/django/core/management/base.py", line 364, in check
include_deployment_checks=include_deployment_checks,
File "/Users/rnapier/.pyenv/versions/api-3.6.6/lib/python3.6/site-packages/django/core/management/base.py", line 351, in _run_checks
return checks.run_checks(**kwargs)
File "/Users/rnapier/.pyenv/versions/api-3.6.6/lib/python3.6/site-packages/django/core/checks/registry.py", line 73, in run_checks
new_errors = check(app_configs=app_configs)
File "/Users/rnapier/.pyenv/versions/api-3.6.6/lib/python3.6/site-packages/django/core/checks/urls.py", line 13, in check_url_config
return check_resolver(resolver)
File "/Users/rnapier/.pyenv/versions/api-3.6.6/lib/python3.6/site-packages/django/core/checks/urls.py", line 23, in check_resolver
return check_method()
File "/Users/rnapier/.pyenv/versions/api-3.6.6/lib/python3.6/site-packages/django/urls/resolvers.py", line 397, in check
for pattern in self.url_patterns:
File "/Users/rnapier/.pyenv/versions/api-3.6.6/lib/python3.6/site-packages/django/utils/functional.py", line 36, in __get__
res = instance.__dict__[self.name] = self.func(instance)
File "/Users/rnapier/.pyenv/versions/api-3.6.6/lib/python3.6/site-packages/django/urls/resolvers.py", line 536, in url_patterns
patterns = getattr(self.urlconf_module, "urlpatterns", self.urlconf_module)
File "/Users/rnapier/.pyenv/versions/api-3.6.6/lib/python3.6/site-packages/django/utils/functional.py", line 36, in __get__
res = instance.__dict__[self.name] = self.func(instance)
File "/Users/rnapier/.pyenv/versions/api-3.6.6/lib/python3.6/site-packages/django/urls/resolvers.py", line 529, in urlconf_module
return import_module(self.urlconf_name)
File "/Users/rnapier/.pyenv/versions/3.6.6/lib/python3.6/importlib/__init__.py", line 126, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "<frozen importlib._bootstrap>", line 994, in _gcd_import
File "<frozen importlib._bootstrap>", line 971, in _find_and_load
File "<frozen importlib._bootstrap>", line 955, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 665, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 678, in exec_module
File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
File "/Users/rnapier/clients/Jaybird/Source/reign-api/reign_api/reign_api/urls.py", line 13, in <module>
import newsfeed.urls
File "/Users/rnapier/clients/Jaybird/Source/reign-api/reign_api/newsfeed/urls.py", line 2, in <module>
from newsfeed import views
File "/Users/rnapier/clients/Jaybird/Source/reign-api/reign_api/newsfeed/views.py", line 15, in <module>
from newsfeed import models, serializers
File "/Users/rnapier/clients/Jaybird/Source/reign-api/reign_api/newsfeed/serializers.py", line 27, in <module>
class NewsfeedSubscriptionSerializer(serializers.Serializer):
File "/Users/rnapier/clients/Jaybird/Source/reign-api/reign_api/newsfeed/serializers.py", line 28, in NewsfeedSubscriptionSerializer
PRODUCTS = [f for f in headset.models.Product.objects.values_list("name", flat=True)]
File "/Users/rnapier/.pyenv/versions/api-3.6.6/lib/python3.6/site-packages/django/db/models/query.py", line 272, in __iter__
self._fetch_all()
File "/Users/rnapier/.pyenv/versions/api-3.6.6/lib/python3.6/site-packages/django/db/models/query.py", line 1179, in _fetch_all
self._result_cache = list(self._iterable_class(self))
File "/Users/rnapier/.pyenv/versions/api-3.6.6/lib/python3.6/site-packages/django/db/models/query.py", line 178, in __iter__
for row in compiler.results_iter(chunked_fetch=self.chunked_fetch, chunk_size=self.chunk_size):
File "/Users/rnapier/.pyenv/versions/api-3.6.6/lib/python3.6/site-packages/django/db/models/sql/compiler.py", line 1017, in results_iter
results = self.execute_sql(MULTI, chunked_fetch=chunked_fetch, chunk_size=chunk_size)
File "/Users/rnapier/.pyenv/versions/api-3.6.6/lib/python3.6/site-packages/django/db/models/sql/compiler.py", line 1066, in execute_sql
cursor.execute(sql, params)
File "/Users/rnapier/.pyenv/versions/api-3.6.6/lib/python3.6/site-packages/django/db/backends/utils.py", line 100, in execute
return super().execute(sql, params)
File "/Users/rnapier/.pyenv/versions/api-3.6.6/lib/python3.6/site-packages/django/db/backends/utils.py", line 68, in execute
return self._execute_with_wrappers(sql, params, many=False, executor=self._execute)
File "/Users/rnapier/.pyenv/versions/api-3.6.6/lib/python3.6/site-packages/django/db/backends/utils.py", line 77, in _execute_with_wrappers
return executor(sql, params, many, context)
File "/Users/rnapier/.pyenv/versions/api-3.6.6/lib/python3.6/site-packages/django/db/backends/utils.py", line 85, in _execute
return self.cursor.execute(sql, params)
File "/Users/rnapier/.pyenv/versions/api-3.6.6/lib/python3.6/site-packages/django/db/utils.py", line 89, in __exit__
raise dj_exc_value.with_traceback(traceback) from exc_value
File "/Users/rnapier/.pyenv/versions/api-3.6.6/lib/python3.6/site-packages/django/db/backends/utils.py", line 85, in _execute
return self.cursor.execute(sql, params)
File "/Users/rnapier/.pyenv/versions/api-3.6.6/lib/python3.6/site-packages/django/db/backends/mysql/base.py", line 71, in execute
return self.cursor.execute(query, args)
File "/Users/rnapier/.pyenv/versions/api-3.6.6/lib/python3.6/site-packages/MySQLdb/cursors.py", line 250, in execute
self.errorhandler(self, exc, value)
File "/Users/rnapier/.pyenv/versions/api-3.6.6/lib/python3.6/site-packages/MySQLdb/connections.py", line 50, in defaulterrorhandler
raise errorvalue
File "/Users/rnapier/.pyenv/versions/api-3.6.6/lib/python3.6/site-packages/MySQLdb/cursors.py", line 247, in execute
res = self._query(query)
File "/Users/rnapier/.pyenv/versions/api-3.6.6/lib/python3.6/site-packages/MySQLdb/cursors.py", line 411, in _query
rowcount = self._do_query(q)
File "/Users/rnapier/.pyenv/versions/api-3.6.6/lib/python3.6/site-packages/MySQLdb/cursors.py", line 374, in _do_query
db.query(q)
File "/Users/rnapier/.pyenv/versions/api-3.6.6/lib/python3.6/site-packages/MySQLdb/connections.py", line 277, in query
_mysql.connection.query(self, query)
django.db.utils.ProgrammingError: (1146, "Table 'reign_api_test.headset_product' doesn't exist")
"model structure for headset_product"
class Product(models.Model):
"""
products supported by the Headset API
"""
name = models.CharField(max_length=128, unique=True)
def __str__(self) -> str:
return "<Product {s.id} {s.name}>".format(s=self)
__repr__ = __str__
The problem is in reign_api/newsfeed/serializers.py, which is trying to make a query at class or module level. This should always be avoided in Django, as the query will be run at first import - before the migrations on a new system will have a chance to run. But this will be causing other problems too, in that that query will only be executed once per process, and will therefore not update when new data is added or changed.
Your colleagues should fix this problem, either by refactoring to move the query into a method, or probably better by using a more appropriate serializer field that takes a queryset and does the query when called.

Django Migrations does not apply changes in models

Whenever I add/remove/modify anything in models.py and the following commands the project does not make those changes to the database models.
python manage.py makemigrations
OR
python manage.py makemigrations
OR
Python manage.py migrate
All the above command throws the same error as below:
"
return self.cursor.execute(sql, params)
django.db.utils.ProgrammingError: column
"
Tried deleting the migrate folder (without deleting , running fake migrations , running zero migrations but nothing helped.
Please advise.
Models.py file is saved and includes:
class studentmaster(models.Model):
studentid = models.IntegerField(primary_key=True)
studentname = models.CharField(max_length=30)
isstaff= models.BooleanField(default=False)
when running migrations, the complete trace is provided below:
python manage.py migrate --fake
Traceback (most recent call last):
File "/home/ankit/miniconda3/envs/sswypeenv/lib/python3.6/site-packages/django/db/backends/utils.py", line 85, in _execute
return self.cursor.execute(sql, params)
psycopg2.ProgrammingError: column loginapp_studentmaster.isstaff does not exist
LINE 1: ...udentid", "loginapp_studentmaster"."studentname", "loginapp_...
^
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 "/home/ankit/miniconda3/envs/sswypeenv/lib/python3.6/site-packages/django/core/management/__init__.py", line 371, in execute_from_command_line
utility.execute()
File "/home/ankit/miniconda3/envs/sswypeenv/lib/python3.6/site-packages/django/core/management/__init__.py", line 365, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/home/ankit/miniconda3/envs/sswypeenv/lib/python3.6/site-packages/django/core/management/base.py", line 288, in run_from_argv
self.execute(*args, **cmd_options)
File "/home/ankit/miniconda3/envs/sswypeenv/lib/python3.6/site-packages/django/core/management/base.py", line 332, in execute
self.check()
File "/home/ankit/miniconda3/envs/sswypeenv/lib/python3.6/site-packages/django/core/management/base.py", line 364, in check
include_deployment_checks=include_deployment_checks,
File "/home/ankit/miniconda3/envs/sswypeenv/lib/python3.6/site-packages/django/core/management/commands/migrate.py", line 58, in _run_checks
issues.extend(super()._run_checks(**kwargs))
File "/home/ankit/miniconda3/envs/sswypeenv/lib/python3.6/site-packages/django/core/management/base.py", line 351, in _run_checks
return checks.run_checks(**kwargs)
File "/home/ankit/miniconda3/envs/sswypeenv/lib/python3.6/site-packages/django/core/checks/registry.py", line 73, in run_checks
new_errors = check(app_configs=app_configs)
File "/home/ankit/miniconda3/envs/sswypeenv/lib/python3.6/site-packages/django/core/checks/urls.py", line 13, in check_url_config
return check_resolver(resolver)
File "/home/ankit/miniconda3/envs/sswypeenv/lib/python3.6/site-packages/django/core/checks/urls.py", line 23, in check_resolver
return check_method()
File "/home/ankit/miniconda3/envs/sswypeenv/lib/python3.6/site-packages/django/urls/resolvers.py", line 397, in check
for pattern in self.url_patterns:
File "/home/ankit/miniconda3/envs/sswypeenv/lib/python3.6/site-packages/django/utils/functional.py", line 36, in __get__
res = instance.__dict__[self.name] = self.func(instance)
File "/home/ankit/miniconda3/envs/sswypeenv/lib/python3.6/site-packages/django/urls/resolvers.py", line 536, in url_patterns
patterns = getattr(self.urlconf_module, "urlpatterns", self.urlconf_module)
File "/home/ankit/miniconda3/envs/sswypeenv/lib/python3.6/site-packages/django/utils/functional.py", line 36, in __get__
res = instance.__dict__[self.name] = self.func(instance)
File "/home/ankit/miniconda3/envs/sswypeenv/lib/python3.6/site-packages/django/urls/resolvers.py", line 529, in urlconf_module
return import_module(self.urlconf_name)
File "/home/ankit/miniconda3/envs/sswypeenv/lib/python3.6/importlib/__init__.py", line 126, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "<frozen importlib._bootstrap>", line 994, in _gcd_import
File "<frozen importlib._bootstrap>", line 971, in _find_and_load
File "<frozen importlib._bootstrap>", line 955, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 665, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 678, in exec_module
File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
File "/home/ankit/smartswypetest/smartswypetest/UserLogin/urls.py", line 18, in <module>
from loginapp import views
File "/home/ankit/smartswypetest/smartswypetest/loginapp/views.py", line 10, in <module>
from .forms import *
File "/home/ankit/smartswypetest/smartswypetest/loginapp/forms.py", line 32, in <module>
class AnnForm(forms.Form):
File "/home/ankit/smartswypetest/smartswypetest/loginapp/forms.py", line 42, in AnnForm
choices=[(str(s.studentid), s.studentname)for s in studentmaster.objects.all()],
File "/home/ankit/miniconda3/envs/sswypeenv/lib/python3.6/site-packages/django/db/models/query.py", line 272, in __iter__
self._fetch_all()
File "/home/ankit/miniconda3/envs/sswypeenv/lib/python3.6/site-packages/django/db/models/query.py", line 1179, in _fetch_all
self._result_cache = list(self._iterable_class(self))
File "/home/ankit/miniconda3/envs/sswypeenv/lib/python3.6/site-packages/django/db/models/query.py", line 53, in __iter__
results = compiler.execute_sql(chunked_fetch=self.chunked_fetch, chunk_size=self.chunk_size)
File "/home/ankit/miniconda3/envs/sswypeenv/lib/python3.6/site-packages/django/db/models/sql/compiler.py", line 1066, in execute_sql
cursor.execute(sql, params)
File "/home/ankit/miniconda3/envs/sswypeenv/lib/python3.6/site-packages/django/db/backends/utils.py", line 100, in execute
return super().execute(sql, params)
File "/home/ankit/miniconda3/envs/sswypeenv/lib/python3.6/site-packages/django/db/backends/utils.py", line 68, in execute
return self._execute_with_wrappers(sql, params, many=False, executor=self._execute)
File "/home/ankit/miniconda3/envs/sswypeenv/lib/python3.6/site-packages/django/db/backends/utils.py", line 77, in _execute_with_wrappers
return executor(sql, params, many, context)
File "/home/ankit/miniconda3/envs/sswypeenv/lib/python3.6/site-packages/django/db/backends/utils.py", line 85, in _execute
return self.cursor.execute(sql, params)
File "/home/ankit/miniconda3/envs/sswypeenv/lib/python3.6/site-packages/django/db/utils.py", line 89, in __exit__
raise dj_exc_value.with_traceback(traceback) from exc_value
File "/home/ankit/miniconda3/envs/sswypeenv/lib/python3.6/site-packages/django/db/backends/utils.py", line 85, in _execute
return self.cursor.execute(sql, params)
django.db.utils.ProgrammingError: column loginapp_studentmaster.isstaff does not exist
LINE 1: ...udentid", "loginapp_studentmaster"."studentname", "loginapp_...
Your AnnForm is making a query in the class definition, which is executed at import time before the migrations can run.
You shouldn't write forms like this anyway. Use a ModelChoiceField with a queryset.

Django - "Relation Does Not Exist" on Fresh Migrations

I'm trying to deploy my app, but when running migrate.py for the first time, I get an error explaining that a "relation does not exist". Of course it wouldn't, because I haven't been able to migrate yet!
Looking through the traceback, it seems to be getting tripped up in my managers.py file, but I can't understand why my managers would be getting in the way?
pyto(genius) 00:24 ~/genius (master)$ python manage.py migrate
Traceback (most recent call last):
File "/home/cvcexport/.virtualenvs/genius/lib/python3.5/site-packages/django/db/backends/utils.py", line 64, in execute
return self.cursor.execute(sql, params)
psycopg2.ProgrammingError: relation "Inventory_purchase" does not exist
LINE 1: ...entory_purchase"."inr_value") AS "inr_value" FROM "Inventory...
^
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 "/home/cvcexport/.virtualenvs/genius/lib/python3.5/site-packages/django/core/management/__init__.py", line 367, in execute_from_comm
and_line
utility.execute()
File "/home/cvcexport/.virtualenvs/genius/lib/python3.5/site-packages/django/core/management/__init__.py", line 359, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/home/cvcexport/.virtualenvs/genius/lib/python3.5/site-packages/django/core/management/base.py", line 294, in run_from_argv
self.execute(*args, **cmd_options)
File "/home/cvcexport/.virtualenvs/genius/lib/python3.5/site-packages/django/core/management/base.py", line 342, in execute
self.check()
File "/home/cvcexport/.virtualenvs/genius/lib/python3.5/site-packages/django/core/management/base.py", line 374, in check
include_deployment_checks=include_deployment_checks,
File "/home/cvcexport/.virtualenvs/genius/lib/python3.5/site-packages/django/core/management/commands/migrate.py", line 62, in _run_check
s
issues.extend(super(Command, self)._run_checks(**kwargs))
File "/home/cvcexport/.virtualenvs/genius/lib/python3.5/site-packages/django/core/management/base.py", line 361, in _run_checks
return checks.run_checks(**kwargs)
res = instance.__dict__[self.name] = self.func(instance)
File "/home/cvcexport/.virtualenvs/genius/lib/python3.5/site-packages/django/core/checks/registry.py", line 81, in run_checks
new_errors = check(app_configs=app_configs)
File "/home/cvcexport/.virtualenvs/genius/lib/python3.5/site-packages/django/core/checks/urls.py", line 14, in check_url_config
return check_resolver(resolver)
File "/home/cvcexport/.virtualenvs/genius/lib/python3.5/site-packages/django/core/checks/urls.py", line 24, in check_resolver
for pattern in resolver.url_patterns:
File "/home/cvcexport/.virtualenvs/genius/lib/python3.5/site-packages/django/utils/functional.py", line 35, in __get__
res = instance.__dict__[self.name] = self.func(instance)
File "/home/cvcexport/.virtualenvs/genius/lib/python3.5/site-packages/django/urls/resolvers.py", line 313, in url_patterns
patterns = getattr(self.urlconf_module, "urlpatterns", self.urlconf_module)
File "/home/cvcexport/.virtualenvs/genius/lib/python3.5/site-packages/django/utils/functional.py", line 35, in __get__
res = instance.__dict__[self.name] = self.func(instance)
File "/home/cvcexport/.virtualenvs/genius/lib/python3.5/site-packages/django/urls/resolvers.py", line 306, in urlconf_module
return import_module(self.urlconf_name)
File "/home/cvcexport/.virtualenvs/genius/lib/python3.5/importlib/__init__.py", line 126, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "<frozen importlib._bootstrap>", line 986, in _gcd_import
File "<frozen importlib._bootstrap>", line 969, in _find_and_load
File "<frozen importlib._bootstrap>", line 958, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 673, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 665, in exec_module
File "<frozen importlib._bootstrap>", line 222, in _call_with_frames_removed
File "/home/cvcexport/genius/Genius/urls.py", line 12, in <module>
url(r'^', include('Inventory.urls', namespace="Inventory")),
File "/home/cvcexport/.virtualenvs/genius/lib/python3.5/site-packages/django/conf/urls/__init__.py", line 50, in include
urlconf_module = import_module(urlconf_module)
File "/home/cvcexport/.virtualenvs/genius/lib/python3.5/importlib/__init__.py", line 126, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "<frozen importlib._bootstrap>", line 986, in _gcd_import
File "<frozen importlib._bootstrap>", line 969, in _find_and_load
File "<frozen importlib._bootstrap>", line 958, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 673, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 665, in exec_module
File "<frozen importlib._bootstrap>", line 222, in _call_with_frames_removed
File "/home/cvcexport/genius/Inventory/urls.py", line 3, in <module>
from Inventory import views
File "/home/cvcexport/genius/Inventory/views.py", line 67, in <module>
class SummaryView(InventoryView):
File "/home/cvcexport/genius/Inventory/views.py", line 70, in SummaryView
summary_table = build_summary_table()
File "/home/cvcexport/genius/Inventory/views.py", line 62, in build_summary_table
table_query = Purchase.inventory.current_summary_data(**kwargs)
File "/home/cvcexport/genius/Inventory/managers.py", line 31, in current_summary_data
for item in totals:
File "/home/cvcexport/.virtualenvs/genius/lib/python3.5/site-packages/django/db/models/query.py", line 256, in __iter__
self._fetch_all()
File "/home/cvcexport/.virtualenvs/genius/lib/python3.5/site-packages/django/db/models/query.py", line 1087, in _fetch_all
self._result_cache = list(self.iterator())
File "/home/cvcexport/.virtualenvs/genius/lib/python3.5/site-packages/django/db/models/query.py", line 109, in __iter__
for row in compiler.results_iter():
File "/home/cvcexport/.virtualenvs/genius/lib/python3.5/site-packages/django/db/models/sql/compiler.py", line 789, in results_iter
results = self.execute_sql(MULTI)
File "/home/cvcexport/.virtualenvs/genius/lib/python3.5/site-packages/django/db/models/sql/compiler.py", line 835, in execute_sql
cursor.execute(sql, params)
File "/home/cvcexport/.virtualenvs/genius/lib/python3.5/site-packages/django/db/backends/utils.py", line 79, in execute
return super(CursorDebugWrapper, self).execute(sql, params)
File "/home/cvcexport/.virtualenvs/genius/lib/python3.5/site-packages/django/db/backends/utils.py", line 64, in execute
return self.cursor.execute(sql, params)
File "/home/cvcexport/.virtualenvs/genius/lib/python3.5/site-packages/django/db/utils.py", line 94, in __exit__
six.reraise(dj_exc_type, dj_exc_value, traceback)
File "/home/cvcexport/.virtualenvs/genius/lib/python3.5/site-packages/django/utils/six.py", line 685, in reraise
raise value.with_traceback(tb)
File "/home/cvcexport/.virtualenvs/genius/lib/python3.5/site-packages/django/db/backends/utils.py", line 64, in execute
return self.cursor.execute(sql, params)
django.db.utils.ProgrammingError: relation "Inventory_purchase" does not exist
LINE 1: ...entory_purchase"."inr_value") AS "inr_value" FROM "Inventory...
My files are kinda bulky, but this is the Manager that is tripping it up:
class EntryManager(Manager):
def user_create(self, request):
type = request.POST.get('type', None)
label = request.POST.get('label', None)
details = request.POST.get('details', None)
date_added = date.today()
sequence = 1 + self.model.objects.filter(type=type, active=True).count()
label = type + str(sequence) + "- " + label
entry = self.model.objects.create(
type=type,
label=label,
details=details,
date_added=date_added,
sequence=sequence,
user=request.user
)
return entry
def user_update(self, request, pk):
entry = self.model.objects.get(id=pk)
entry.label = entry.type + str(entry.sequence) + "- " + request.POST.get("label")
entry.details = request.POST.get("details")
entry.user = request.user
entry.save()
return entry
def user_delete(self, pk):
entry = self.model.objects.get(id=pk)
successors = self.model.objects.filter(type=entry.type, active=True, sequence__gt=entry.sequence)
for obj in successors:
obj.sequence -= 1
obj.label = obj.label.split(" ", 1)[1]
obj.label = obj.type + str(obj.sequence) + "- " + obj.label
obj.save()
key = entry.id
entry.delete()
return key
def get_entry_set(self, request):
"""
Builds selection lists allowing users to link SWOT entries to strategies. Used in swot-matrix.js with
setStratEntries method.
Args:
Request Delivers two relevant variables:
s_or_w: Indicates "Y-axis" (strength or weakness) requirement.
o_or_t: Indicates "X-axis" (opportunity or threat) requirement.
Returns:
All active entries that match each requested type, packaged in dictionaries and ready for JSON delivery.
"""
# Build Dictionary of active Strengths or Weaknesses
s_or_w = request.GET.get("s_or_w")
strengths_or_weaknesses = self.model.objects.filter(type=s_or_w, active=True)
s_or_w_data = []
for entry in strengths_or_weaknesses:
s_or_w_data.append({
"id": entry.id,
"label": entry.label
})
# Build Dictionary of active Opportunities or Threats
o_or_t = request.GET.get("o_or_t")
opportunities_or_threats = self.model.objects.filter(type=o_or_t, active=True)
o_or_t_data = []
for entry in opportunities_or_threats:
o_or_t_data.append({
"id": entry.id,
"label": entry.label,
})
# Combine for for JSON delivery.
data = {
"s_or_w": s_or_w_data,
"o_or_t": o_or_t_data
}
return data
This is the associated model:
class Entry(GenericObject):
type = models.CharField(max_length=1, choices=choices.ENTRY_CHOICES)
sequence = models.IntegerField()
label = models.CharField(max_length=124)
actions = managers.EntryManager()
objects = models.Manager()
class Meta:
ordering = ["id"]
Am I breaking the rules somewhere? Why is migrate.py complaining about missing columns on a brand new postgres database?
first migrate that particular app. python manage.py migrate app_name. Which will resolve the dependency.
I never figured out what was wrong. The error would trip at different points in my managers here and there, but would always be triggered first in the views. I simply commented out all of the views and urlpatterns, ran the migrations and then reverted the files.