CODEWITHSUNDEEP
djangopython-2.7django-modelsdjango-rest-framework
Piyush S. Wanare
Piyush S. Wanare

Reputation: 4933

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='[email protected]',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

Upvotes: 1

Views: 703

Answers (2)

zaidfazil
zaidfazil

Reputation: 9245

Try this,

team = UniservedTeam.objects.create(user__id=user.id, Role=['Vendor Co-ordinator'],ContactNumber='862339798167')

Upvotes: 0

Matt Cremeens
Matt Cremeens

Reputation: 5151

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')

Upvotes: 2

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