Django Admin with Parler translations generates IntegrityError - django

I'm using Django Parler 1.9.2 and Django 2.1.
I have a Business Admin Class with inlines to edit the related models (Service and Resource)
class ServiceInline(TranslatableTabularInline):
model = Service
class ResourceInline(TranslatableTabularInline):
model = Resource
#admin.register(Business)
class BusinessAdmin(TranslatableAdmin):
inlines = [ServiceInline, ResourceInline]
When I try edit a Business in Admin it gives me a IntegrityError:
File "/home/vagrant/.virtualenvs/appy/lib/python3.6/site-packages/django/forms/models.py", line 650, in save_existing
return form.save(commit=commit)
File "/home/vagrant/.virtualenvs/appy/lib/python3.6/site-packages/django/forms/models.py", line 458, in save
self.instance.save()
File "/home/vagrant/.virtualenvs/appy/lib/python3.6/site-packages/parler/models.py", line 648, in save
self.save_translations(*args, **kwargs)
File "/home/vagrant/.virtualenvs/appy/lib/python3.6/site-packages/parler/models.py", line 701, in save_translations
self.save_translation(translation, *args, **kwargs)
File "/home/vagrant/.virtualenvs/appy/lib/python3.6/site-packages/parler/models.py", line 728, in save_translation
translation.save(*args, **kwargs)
File "/home/vagrant/.virtualenvs/appy/lib/python3.6/site-packages/django/db/models/base.py", line 717, in save
force_update=force_update, update_fields=update_fields)
File "/home/vagrant/.virtualenvs/appy/lib/python3.6/site-packages/parler/models.py", line 892, in save_base
super(TranslatedFieldsModelMixin, self).save_base(raw=raw, using=using, **kwargs)
File "/home/vagrant/.virtualenvs/appy/lib/python3.6/site-packages/django/db/models/base.py", line 747, in save_base
updated = self._save_table(raw, cls, force_insert, force_update, using, update_fields)
File "/home/vagrant/.virtualenvs/appy/lib/python3.6/site-packages/django/db/models/base.py", line 833, in _save_table
result = self._do_insert(cls._base_manager, using, fields, update_pk, raw)
File "/home/vagrant/.virtualenvs/appy/lib/python3.6/site-packages/django/db/models/base.py", line 872, in _do_insert
using=using, raw=raw)
File "/home/vagrant/.virtualenvs/appy/lib/python3.6/site-packages/django/db/models/manager.py", line 82, in manager_method
return getattr(self.get_queryset(), name)(*args, **kwargs)
File "/home/vagrant/.virtualenvs/appy/lib/python3.6/site-packages/django/db/models/query.py", line 1133, in _insert
return query.get_compiler(using=using).execute_sql(return_id)
File "/home/vagrant/.virtualenvs/appy/lib/python3.6/site-packages/django/db/models/sql/compiler.py", line 1285, in execute_sql
cursor.execute(sql, params)
File "/home/vagrant/.virtualenvs/appy/lib/python3.6/site-packages/django/db/backends/utils.py", line 100, in execute
return super().execute(sql, params)
File "/home/vagrant/.virtualenvs/appy/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/vagrant/.virtualenvs/appy/lib/python3.6/site-packages/django/db/backends/utils.py", line 77, in _execute_with_wrappers
return executor(sql, params, many, context)
File "/home/vagrant/.virtualenvs/appy/lib/python3.6/site-packages/django/db/backends/utils.py", line 85, in _execute
return self.cursor.execute(sql, params)
File "/home/vagrant/.virtualenvs/appy/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/vagrant/.virtualenvs/appy/lib/python3.6/site-packages/django/db/backends/utils.py", line 85, in _execute
return self.cursor.execute(sql, params)
django.db.utils.IntegrityError: duplicate key value violates unique constraint "businesses_resource_tran_language_code_master_id_598f5fae_uniq"
DETAIL: Key (language_code, master_id)=(en, 9) already exists.
Any idea in how to solve this?

It's resolved. A was a database trigger. This trigger created a new entry before the execution of save method but after the object being created. I think it's a Django limitation.

Related

django test fail to build foreign key relationship with hidden related_name

I have two models:
class Model1(BaseModel):
hidden = models.ForeignKey(
Model2,
default=10,
related_name='+',
)
class Model2(models.Model):
# model content
so the issue is, when using django test, the test database cannot create the relationship between Model1 and Model2, I suspect it's because of the field related_name='+' . Not sure what is the work around for this without changing the related_name.
the fail info is
File "/app/src/save.py", line 317, in save_app
model1.object.save()
File "/app/venv/lib/python3.7/site-packages/django/db/models/base.py", line 740, in save
force_update=force_update, update_fields=update_fields)
File "/app/venv/lib/python3.7/site-packages/django/db/models/base.py", line 778, in save_base
force_update, using, update_fields,
File "/app/venv/lib/python3.7/site-packages/django/db/models/base.py", line 881, in _save_table
results = self._do_insert(cls._base_manager, using, fields, returning_fields, raw)
File "/app/venv/lib/python3.7/site-packages/django/db/models/base.py", line 921, in _do_insert
using=using, raw=raw,
File "/app/venv/lib/python3.7/site-packages/django/db/models/manager.py", line 85, in manager_method
return getattr(self.get_queryset(), name)(*args, **kwargs)
File "/app/venv/lib/python3.7/site-packages/django/db/models/query.py", line 1270, in _insert
return query.get_compiler(using=using).execute_sql(returning_fields)
File "/app/venv/lib/python3.7/site-packages/django/db/models/sql/compiler.py", line 1416, in execute_sql
cursor.execute(sql, params)
File "/app/venv/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 "/app/venv/lib/python3.7/site-packages/django/db/backends/utils.py", line 75, in _execute_with_wrappers
return executor(sql, params, many, context)
File "/app/venv/lib/python3.7/site-packages/django/db/backends/utils.py", line 84, in _execute
return self.cursor.execute(sql, params)
File "/app/venv/lib/python3.7/site-packages/django/db/utils.py", line 90, in __exit__
raise dj_exc_value.with_traceback(traceback) from exc_value
File "/app/venv/lib/python3.7/site-packages/django/db/backends/utils.py", line 84, in _execute
return self.cursor.execute(sql, params)
django.db.utils.IntegrityError: insert or update on table "Model1" violates foreign key constraint "Model1_hidden_1ba57f04_fk_Model2"
DETAIL: Key (Model1_hidden_id)=(10) is not present in table "Model2".
problem solved by pre-populate the testing database by using the fixture option. related_name="+" is not the real issue. real issue is the database needs to be populated before the test.

Django doesn't create test database when running test

I read in Django document that a blank database will be created for testing. I am new to Django so I barely changed anything in setting.py and currently using Sqlite database. However, when I run python manage.py test, Django keep telling the user has been existed, so I tried changing the username for the created users in TestCase, run the test again and found out that the new users are created in the existing database. The test file is as bellow:
class UserTestCase(unittest.TestCase):
def setUp(self):
admin = User.objects.create(username="admin", password="1")
user1 = User.objects.create(username="user1", password="1")
user2 = User.objects.create(username="user2", password="1")
admin.following.add(user1)
admin.followers.add(user2)
def test_users_count(self):
self.assertEqual(User.objects.count()==3)
My model is as bellow:
class User(AbstractUser):
followers = models.ManyToManyField('self', related_name="following", symmetrical=False, through='Follow', through_fields=('followee', 'follower'))
def __str__(self):
return f"{self.username}"
def serialize(self):
return {
"id": self.id,
"username": self.username,
}
class Follow(models.Model):
followee = models.ForeignKey(
'User',
on_delete=models.CASCADE,
related_name='+'
)
follower = models.ForeignKey(
'User',
on_delete=models.CASCADE,
related_name='+'
)
def clean(self, *args, **kwargs):
if self.follower__id == self.followee__id:
raise ValidationError('Can not follow self.')
return super().clean(*args, **kwargs)
class Meta:
constraints = [
models.UniqueConstraint(fields=['follower', 'followee'], name='follow_once'),
models.CheckConstraint(check=~Q(follower=F('followee')), name='not_follow_self')
]
EDIT: Bellow is the output when I run python manage.py test
(env_web) PS C:\Users\HL94NVT\Programming\web_development\project4> python manage.py test
System check identified no issues (0 silenced).
EE
======================================================================
ERROR: test_following_count (network.tests.UserTestCase)
----------------------------------------------------------------------
Traceback (most recent call last):
File "C:\Users\HL94NVT\Programming\web_development\env_web\lib\site-packages\django\db\backends\utils.py", line 84, in _execute
return self.cursor.execute(sql, params)
File "C:\Users\HL94NVT\Programming\web_development\env_web\lib\site-packages\django\db\backends\sqlite3\base.py", line 413, in execute
return Database.Cursor.execute(self, query, params)
sqlite3.IntegrityError: UNIQUE constraint failed: network_user.username
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "C:\Users\HL94NVT\Programming\web_development\project4\network\tests.py", line 21, in setUp
admin = User.objects.create(username="admin1", password="1")
File "C:\Users\HL94NVT\Programming\web_development\env_web\lib\site-packages\django\db\models\manager.py", line 85, in manager_method
return getattr(self.get_queryset(), name)(*args, **kwargs)
File "C:\Users\HL94NVT\Programming\web_development\env_web\lib\site-packages\django\db\models\query.py", line 447, in create
obj.save(force_insert=True, using=self.db)
File "C:\Users\HL94NVT\Programming\web_development\env_web\lib\site-packages\django\contrib\auth\base_user.py", line 67, in save
super().save(*args, **kwargs)
File "C:\Users\HL94NVT\Programming\web_development\env_web\lib\site-packages\django\db\models\base.py", line 754, in save
force_update=force_update, update_fields=update_fields)
File "C:\Users\HL94NVT\Programming\web_development\env_web\lib\site-packages\django\db\models\base.py", line 792, in save_base
force_update, using, update_fields,
File "C:\Users\HL94NVT\Programming\web_development\env_web\lib\site-packages\django\db\models\base.py", line 895, in _save_table
results = self._do_insert(cls._base_manager, using, fields, returning_fields, raw)
File "C:\Users\HL94NVT\Programming\web_development\env_web\lib\site-packages\django\db\models\base.py", line 935, in _do_insert
using=using, raw=raw,
File "C:\Users\HL94NVT\Programming\web_development\env_web\lib\site-packages\django\db\models\manager.py", line 85, in manager_method
return getattr(self.get_queryset(), name)(*args, **kwargs)
File "C:\Users\HL94NVT\Programming\web_development\env_web\lib\site-packages\django\db\models\query.py", line 1254, in _insert
return query.get_compiler(using=using).execute_sql(returning_fields)
File "C:\Users\HL94NVT\Programming\web_development\env_web\lib\site-packages\django\db\models\sql\compiler.py", line 1397, in execute_sql
cursor.execute(sql, params)
File "C:\Users\HL94NVT\Programming\web_development\env_web\lib\site-packages\django\db\backends\utils.py", line 66, in execute
return self._execute_with_wrappers(sql, params, many=False, executor=self._execute)
File "C:\Users\HL94NVT\Programming\web_development\env_web\lib\site-packages\django\db\backends\utils.py", line 75, in _execute_with_wrappers
return executor(sql, params, many, context)
File "C:\Users\HL94NVT\Programming\web_development\env_web\lib\site-packages\django\db\backends\utils.py", line 84, in _execute
return self.cursor.execute(sql, params)
File "C:\Users\HL94NVT\Programming\web_development\env_web\lib\site-packages\django\db\utils.py", line 90, in __exit__
raise dj_exc_value.with_traceback(traceback) from exc_value
File "C:\Users\HL94NVT\Programming\web_development\env_web\lib\site-packages\django\db\backends\utils.py", line 84, in _execute
return self.cursor.execute(sql, params)
File "C:\Users\HL94NVT\Programming\web_development\env_web\lib\site-packages\django\db\backends\sqlite3\base.py", line 413, in execute
return Database.Cursor.execute(self, query, params)
django.db.utils.IntegrityError: UNIQUE constraint failed: network_user.username
======================================================================
ERROR: test_users_count (network.tests.UserTestCase)
----------------------------------------------------------------------
Traceback (most recent call last):
File "C:\Users\HL94NVT\Programming\web_development\env_web\lib\site-packages\django\db\backends\utils.py", line 84, in _execute
return self.cursor.execute(sql, params)
File "C:\Users\HL94NVT\Programming\web_development\env_web\lib\site-packages\django\db\backends\sqlite3\base.py", line 413, in execute
return Database.Cursor.execute(self, query, params)
sqlite3.IntegrityError: UNIQUE constraint failed: network_user.username
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "C:\Users\HL94NVT\Programming\web_development\project4\network\tests.py", line 21, in setUp
admin = User.objects.create(username="admin1", password="1")
File "C:\Users\HL94NVT\Programming\web_development\env_web\lib\site-packages\django\db\models\manager.py", line 85, in manager_method
return getattr(self.get_queryset(), name)(*args, **kwargs)
File "C:\Users\HL94NVT\Programming\web_development\env_web\lib\site-packages\django\db\models\query.py", line 447, in create
obj.save(force_insert=True, using=self.db)
File "C:\Users\HL94NVT\Programming\web_development\env_web\lib\site-packages\django\contrib\auth\base_user.py", line 67, in save
super().save(*args, **kwargs)
File "C:\Users\HL94NVT\Programming\web_development\env_web\lib\site-packages\django\db\models\base.py", line 754, in save
force_update=force_update, update_fields=update_fields)
File "C:\Users\HL94NVT\Programming\web_development\env_web\lib\site-packages\django\db\models\base.py", line 792, in save_base
force_update, using, update_fields,
File "C:\Users\HL94NVT\Programming\web_development\env_web\lib\site-packages\django\db\models\base.py", line 895, in _save_table
results = self._do_insert(cls._base_manager, using, fields, returning_fields, raw)
File "C:\Users\HL94NVT\Programming\web_development\env_web\lib\site-packages\django\db\models\base.py", line 935, in _do_insert
using=using, raw=raw,
File "C:\Users\HL94NVT\Programming\web_development\env_web\lib\site-packages\django\db\models\manager.py", line 85, in manager_method
return getattr(self.get_queryset(), name)(*args, **kwargs)
File "C:\Users\HL94NVT\Programming\web_development\env_web\lib\site-packages\django\db\models\query.py", line 1254, in _insert
return query.get_compiler(using=using).execute_sql(returning_fields)
File "C:\Users\HL94NVT\Programming\web_development\env_web\lib\site-packages\django\db\models\sql\compiler.py", line 1397, in execute_sql
cursor.execute(sql, params)
File "C:\Users\HL94NVT\Programming\web_development\env_web\lib\site-packages\django\db\backends\utils.py", line 66, in execute
return self._execute_with_wrappers(sql, params, many=False, executor=self._execute)
File "C:\Users\HL94NVT\Programming\web_development\env_web\lib\site-packages\django\db\backends\utils.py", line 75, in _execute_with_wrappers
return executor(sql, params, many, context)
File "C:\Users\HL94NVT\Programming\web_development\env_web\lib\site-packages\django\db\backends\utils.py", line 84, in _execute
return self.cursor.execute(sql, params)
File "C:\Users\HL94NVT\Programming\web_development\env_web\lib\site-packages\django\db\utils.py", line 90, in __exit__
raise dj_exc_value.with_traceback(traceback) from exc_value
File "C:\Users\HL94NVT\Programming\web_development\env_web\lib\site-packages\django\db\backends\utils.py", line 84, in _execute
return self.cursor.execute(sql, params)
File "C:\Users\HL94NVT\Programming\web_development\env_web\lib\site-packages\django\db\backends\sqlite3\base.py", line 413, in execute
return Database.Cursor.execute(self, query, params)
django.db.utils.IntegrityError: UNIQUE constraint failed: network_user.username
----------------------------------------------------------------------
Ran 2 tests in 0.063s
Using django.test.TestCase instead of unittest.TestCase helps according to the document
https://docs.djangoproject.com/en/3.1/topics/testing/overview/
If your tests rely on database access such as creating or querying models, be sure to create your test classes as subclasses of django.test.TestCase rather than unittest.TestCase.
Using unittest.TestCase avoids the cost of running each test in a transaction and flushing the database, but if your tests interact with the database their behavior will vary based on the order that the test runner executes them. This can lead to unit tests that pass when run in isolation but fail when run in a suite.

django_celery_beat - "no such table: main.django_celery_beat_solarschedule__old" while updating "django_celery_beat_periodictask"

I'm using django + celery, when running django devserver I'm getting exception
django.db.utils.OperationalError: no such table: main.django_celery_beat_solarschedule__old
and callstack tells that it occured while doing insert into table django_celery_beat_periodictask
Database is sqlite3. Python version is 3.5.6. All migrations were applied and django_celery_beat was added to settings
Calling code:
def register_task(task, interval=DEFAULT_TASK_INTERVAL):
logger.info("Registering periodic task %s with interval %s", task, interval)
name = "Default {}".format(task)
schedule, _ = IntervalSchedule.objects.update_or_create(
every=interval, period=IntervalSchedule.SECONDS)
PeriodicTask.objects.update_or_create(
name=name, defaults={
"interval": schedule,
"task": task
})
Actual traceback:
File "/home/zab/Git/overview-server/overview-server/src/basis/tasks/shedule.py", line 21, in register_task
"task": task
File "/home/zab/venv/overview/lib/python3.5/site-packages/django/db/models/manager.py", line 82, in manager_method
return getattr(self.get_queryset(), name)(*args, **kwargs)
File "/home/zab/venv/overview/lib/python3.5/site-packages/django_celery_beat/managers.py", line 14, in update_or_create
obj, created = self.get_or_create(defaults=defaults, **kwargs)
File "/home/zab/venv/overview/lib/python3.5/site-packages/django/db/models/query.py", line 489, in get_or_create
return self._create_object_from_params(lookup, params)
File "/home/zab/venv/overview/lib/python3.5/site-packages/django/db/models/query.py", line 521, in _create_object_from_params
obj = self.create(**params)
File "/home/zab/venv/overview/lib/python3.5/site-packages/django/db/models/query.py", line 417, in create
obj.save(force_insert=True, using=self.db)
File "/home/zab/venv/overview/lib/python3.5/site-packages/django_celery_beat/models.py", line 316, in save
super(PeriodicTask, self).save(*args, **kwargs)
File "/home/zab/venv/overview/lib/python3.5/site-packages/django/db/models/base.py", line 729, in save
force_update=force_update, update_fields=update_fields)
File "/home/zab/venv/overview/lib/python3.5/site-packages/django/db/models/base.py", line 759, in save_base
updated = self._save_table(raw, cls, force_insert, force_update, using, update_fields)
File "/home/zab/venv/overview/lib/python3.5/site-packages/django/db/models/base.py", line 842, in _save_table
result = self._do_insert(cls._base_manager, using, fields, update_pk, raw)
File "/home/zab/venv/overview/lib/python3.5/site-packages/django/db/models/base.py", line 880, in _do_insert
using=using, raw=raw)
File "/home/zab/venv/overview/lib/python3.5/site-packages/django/db/models/manager.py", line 82, in manager_method
return getattr(self.get_queryset(), name)(*args, **kwargs)
File "/home/zab/venv/overview/lib/python3.5/site-packages/django/db/models/query.py", line 1125, in _insert
return query.get_compiler(using=using).execute_sql(return_id)
File "/home/zab/venv/overview/lib/python3.5/site-packages/django/db/models/sql/compiler.py", line 1285, in execute_sql
cursor.execute(sql, params)
File "/home/zab/venv/overview/lib/python3.5/site-packages/django/db/backends/utils.py", line 100, in execute
return super().execute(sql, params)
File "/home/zab/venv/overview/lib/python3.5/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/zab/venv/overview/lib/python3.5/site-packages/django/db/backends/utils.py", line 77, in _execute_with_wrappers
return executor(sql, params, many, context)
File "/home/zab/venv/overview/lib/python3.5/site-packages/django/db/backends/utils.py", line 85, in _execute
return self.cursor.execute(sql, params)
File "/home/zab/venv/overview/lib/python3.5/site-packages/django/db/utils.py", line 89, in __exit__
raise dj_exc_value.with_traceback(traceback) from exc_value
File "/home/zab/venv/overview/lib/python3.5/site-packages/django/db/backends/utils.py", line 85, in _execute
return self.cursor.execute(sql, params)
File "/home/zab/venv/overview/lib/python3.5/site-packages/django/db/backends/sqlite3/base.py", line 303, in execute
return Database.Cursor.execute(self, query, params)
django.db.utils.OperationalError: no such table: main.django_celery_beat_solarschedule__old
I suppose you didn't run migrate and as result those tables were not created.
Run
python manage.py migrate
And make sure you added it to INSTALLED_APPS
INSTALLED_APPS = (
...,
'django_celery_beat',
)
The problem was in Django. Migrations were broken for new sqlite.
https://code.djangoproject.com/ticket/29182
Bumping for recent answer. I was using the tables before they were migrated. So I commented out all the code involving beat (except installed apps), ran python manage.py migrate fresh, then uncommented the code

Django Rest Framework - IntegrityError: null value in column "user_id" violates not-null constraint

I am new to Django, want to create custom user models as follows:
from django.contrib.auth.models import User
from django.db.models.signals import post_save
from django.dispatch import receiver
from django.db import models
class UniservedTeam(models.Model):
user = models.OneToOneField(User, on_delete=models.CASCADE)
Role = ArrayField(models.CharField(max_length=1000), blank=True,null=True)
ContactNumber = models.CharField(max_length=100)
In shell I am trying to create an user :
>>> user = User.objects.create(email='piyush#uniserved.com',password='Piyush#123',username='Piyush#24',last_name='Wanare',first_name='Piyush',is_active=True)
>>> user
<User: Piyush#24>
>>> user.id
1
>>> team = UniservedTeam.objects.create(id=user.id,Role=['Vendor Co-ordinator'],ContactNumber='862339798167')
Getting Error as follows:
Traceback (most recent call last):
File "<console>", line 1, in <module>
File "/home/piyush/.environments/awsd/local/lib/python2.7/site-packages/django/db/models/manager.py", line 122, in manager_method
return getattr(self.get_queryset(), name)(*args, **kwargs)
File "/home/piyush/.environments/awsd/local/lib/python2.7/site-packages/django/db/models/query.py", line 401, in create
obj.save(force_insert=True, using=self.db)
File "/home/piyush/.environments/awsd/local/lib/python2.7/site-packages/django/db/models/base.py", line 700, in save
force_update=force_update, update_fields=update_fields)
File "/home/piyush/.environments/awsd/local/lib/python2.7/site-packages/django/db/models/base.py", line 728, in save_base
updated = self._save_table(raw, cls, force_insert, force_update, using, update_fields)
File "/home/piyush/.environments/awsd/local/lib/python2.7/site-packages/django/db/models/base.py", line 812, in _save_table
result = self._do_insert(cls._base_manager, using, fields, update_pk, raw)
File "/home/piyush/.environments/awsd/local/lib/python2.7/site-packages/django/db/models/base.py", line 851, in _do_insert
using=using, raw=raw)
File "/home/piyush/.environments/awsd/local/lib/python2.7/site-packages/django/db/models/manager.py", line 122, in manager_method
return getattr(self.get_queryset(), name)(*args, **kwargs)
File "/home/piyush/.environments/awsd/local/lib/python2.7/site-packages/django/db/models/query.py", line 1039, in _insert
return query.get_compiler(using=using).execute_sql(return_id)
File "/home/piyush/.environments/awsd/local/lib/python2.7/site-packages/django/db/models/sql/compiler.py", line 1060, in execute_sql
cursor.execute(sql, params)
File "/home/piyush/.environments/awsd/local/lib/python2.7/site-packages/django/db/backends/utils.py", line 79, in execute
return super(CursorDebugWrapper, self).execute(sql, params)
File "/home/piyush/.environments/awsd/local/lib/python2.7/site-packages/django/db/backends/utils.py", line 64, in execute
return self.cursor.execute(sql, params)
File "/home/piyush/.environments/awsd/local/lib/python2.7/site-packages/django/db/utils.py", line 95, in __exit__
six.reraise(dj_exc_type, dj_exc_value, traceback)
File "/home/piyush/.environments/awsd/local/lib/python2.7/site-packages/django/db/backends/utils.py", line 64, in execute
return self.cursor.execute(sql, params)
IntegrityError: null value in column "user_id" violates not-null constraint
I think what you want instead after you make your user is this
team = UniservedTeam.objects.create(user=user,Role=['Vendor Co-ordinator'],ContactNumber='862339798167')
Try this,
team = UniservedTeam.objects.create(user__id=user.id, Role=['Vendor Co-ordinator'],ContactNumber='862339798167')

IntegrityError when saving Django inherited model with custom ID field

I get an error when saving the model with custom primary key - id field.
My model:
class TestZ(models.Model):
id = models.CharField(primary_key=True, max_length=7)
field0 = models.CharField(max_length=10)
class Meta:
abstract = True
class TestX(TestZ):
field1 = models.CharField(max_length=10)
class TestA(TestX):
field2 = models.CharField(max_length=10)
class TestB(TestX):
pass
Error:
>>> TestB.objects.create(pk='aa', field0='0', field1='1')
Traceback (most recent call last):
File "<input>", line 1, in <module>
File "/usr/local/lib/python2.7/dist-packages/django/db/models/manager.py", line 157, in create
return self.get_queryset().create(**kwargs)
File "/usr/local/lib/python2.7/dist-packages/django/db/models/query.py", line 322, in create
obj.save(force_insert=True, using=self.db)
File "/usr/local/lib/python2.7/dist-packages/django/db/models/base.py", line 545, in save
force_update=force_update, update_fields=update_fields)
File "/usr/local/lib/python2.7/dist-packages/django/db/models/base.py", line 573, in save_base
updated = self._save_table(raw, cls, force_insert, force_update, using, update_fields)
File "/usr/local/lib/python2.7/dist-packages/django/db/models/base.py", line 654, in _save_table
result = self._do_insert(cls._base_manager, using, fields, update_pk, raw)
File "/usr/local/lib/python2.7/dist-packages/django/db/models/base.py", line 687, in _do_insert
using=using, raw=raw)
File "/usr/local/lib/python2.7/dist-packages/django/db/models/manager.py", line 232, in _insert
return insert_query(self.model, objs, fields, **kwargs)
File "/usr/local/lib/python2.7/dist-packages/django/db/models/query.py", line 1514, in insert_query
return query.get_compiler(using=using).execute_sql(return_id)
File "/usr/local/lib/python2.7/dist-packages/django/db/models/sql/compiler.py", line 903, in execute_sql
cursor.execute(sql, params)
File "/usr/local/lib/python2.7/dist-packages/django/db/backends/util.py", line 69, in execute
return super(CursorDebugWrapper, self).execute(sql, params)
File "/usr/local/lib/python2.7/dist-packages/django/db/backends/util.py", line 53, in execute
return self.cursor.execute(sql, params)
File "/usr/local/lib/python2.7/dist-packages/django/db/utils.py", line 99, in __exit__
six.reraise(dj_exc_type, dj_exc_value, traceback)
File "/usr/local/lib/python2.7/dist-packages/django/db/backends/util.py", line 53, in execute
return self.cursor.execute(sql, params)
File "/usr/local/lib/python2.7/dist-packages/django/db/backends/sqlite3/base.py", line 451, in execute
return Database.Cursor.execute(self, query, params)
IntegrityError: NOT NULL constraint failed: myapp_testb.testx_ptr_id
Without custom pk field in TestZ I can save objects.
From admin page I can add an objects, there are no errors.
Django==1.6.5
You need to reference the custom id field when creating the model object. I tested this out and it works --> TestB.objects.create(id='aa', field0='0', field1='1')