python - django.db.utils.IntegrityError : NOT NULL constraint failed 错误

Question

我正在尝试为我的站点建立自定义注册，因此我使用的是使用配置文件模型注册。

回溯:

Traceback (most recent call last):
File "C:\Python36\lib\site-packages\django\core\handlers\exception.py", line 
 41, in inner
 response = get_response(request)
File "C:\Python36\lib\site-packages\django\core\handlers\base.py", line 187, 
 in _get_response
 response = self.process_exception_by_middleware(e, request)
File "C:\Python36\lib\site-packages\django\core\handlers\base.py", line 185, 
 in _get_response
 response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "C:\Users\admin\Desktop\dev1\mysite\mysite\core\views.py", line 74, in 
 complete_profile
 form.save()
File "C:\Python36\lib\site-packages\django\forms\models.py", line 451, in 
 save
 self.instance.save()
File "C:\Python36\lib\site-packages\django\db\models\base.py", line 806, in 
 save
force_update=force_update, update_fields=update_fields)
File "C:\Python36\lib\site-packages\django\db\models\base.py", line 836, in 
 save_base
 updated = self._save_table(raw, cls, force_insert, force_update, using, 
 update_fields)
File "C:\Python36\lib\site-packages\django\db\models\base.py", line 922, in    
 _save_table
 result = self._do_insert(cls._base_manager, using, fields, update_pk, raw)
File "C:\Python36\lib\site-packages\django\db\models\base.py", line 961, in 
 _do_insert
 using=using, raw=raw)
File "C:\Python36\lib\site-packages\django\db\models\manager.py", line 85, 
 in manager_method
 return getattr(self.get_queryset(), name)(*args, **kwargs)
File "C:\Python36\lib\site-packages\django\db\models\query.py", line 1060, 
 in _insert
 return query.get_compiler(using=using).execute_sql(return_id)
File "C:\Python36\lib\site-packages\django\db\models\sql\compiler.py", line 
 1099, in execute_sql
 cursor.execute(sql, params)
File "C:\Python36\lib\site-packages\django\db\backends\utils.py", line 80, 
 in execute
 return super(CursorDebugWrapper, self).execute(sql, params)
File "C:\Python36\lib\site-packages\django\db\backends\utils.py", line 65, 
 in execute
 return self.cursor.execute(sql, params)
File "C:\Python36\lib\site-packages\django\db\utils.py", line 94, in 
 __exit__
 six.reraise(dj_exc_type, dj_exc_value, traceback)
File "C:\Python36\lib\site-packages\django\utils\six.py", line 685, in 
 reraise
 raise value.with_traceback(tb)
File "C:\Python36\lib\site-packages\django\db\backends\utils.py", line 65, 
 in execute
 return self.cursor.execute(sql, params)
File "C:\Python36\lib\site-packages\django\db\backends\sqlite3\base.py",   
 line 328, in execute
 return Database.Cursor.execute(self, query, params)
django.db.utils.IntegrityError: NOT NULL constraint failed: 
core_profile.user_id

我在提交表单后遇到此错误，该表单是我为让用户在注册电子邮件确认后完成个人资料信息而制作的。看这张图

我的一些代码:

模型.py

from django.db import models
from django.contrib.auth.models import User
from django.db.models.signals import post_save
from django.dispatch import receiver

class Profile(models.Model):
  user = models.OneToOneField(User, on_delete=models.CASCADE)
  birth_date = models.DateField(null=True, blank=True)
  birth_place = models.CharField(max_length=80, verbose_name= ("Lieu de 
    Naissance"))
  email_confirmed = models.BooleanField(default=False)
  adress = models.CharField(max_length=80, verbose_name=("Adresse"))
  adress_complement = models.CharField(max_length=80, verbose_name=
    ("Complément d'Adresse"))
  city = models.CharField(max_length=80, verbose_name=("Ville"))
  zip_code = models.IntegerField(null=True, blank=True)
  drive_licence_num = models.CharField(max_length=80, verbose_name=("N° du 
     Permis de conduire"))
  social_secu_num = models.IntegerField(null=True, blank=True)
  phone_number = models.IntegerField(null=True, blank=True)

  @receiver(post_save, sender=User)
  def update_user_profile(sender, instance, created, **kwargs):
     if created:
     Profile.objects.create(user=instance)
     instance.profile.save()

表单.py

from django import forms
from django.contrib.auth.forms import UserCreationForm
from django.contrib.auth.models import User
from mysite.core.models import Profile

class SignUpForm(UserCreationForm):
  email = forms.EmailField(max_length=254, help_text='Required. Inform a 
          valid email address.')
  class Meta:
      model = User
      fields = ('first_name', 'last_name', 'email', 'username', 'password1', 
                'password2',)

class ProfileForm(forms.ModelForm):
  class Meta:
    model = Profile
    fields = ('birth_date','birth_place', 'adress', 'adress_complement',
              'city', 'zip_code', 'drive_licence_num', 'social_secu_num', 
              'phone_number')

views.py(complete_profile View )

def complete_profile(request):
  #if email_confirmed == True:
  if request.user.is_authenticated():
      if request.method == 'POST':

          form = ProfileForm(request.POST)
          if form.is_valid():
              form.save()

              return render(request, 'home.html')
      else:
          form = ProfileForm()
          return render(request, 'complete_profile.html', {'form': form})
  else:
      return render(request, 'login.html')

Answer 1

您可能需要将实例 request.user.profile 传递给表单。

def complete_profile(request):
    if request.user.is_authenticated():
        if request.method == 'POST':
            form = ProfileForm(request.POST, instance=request.user.profile)
            if form.is_valid():
                #form.instance.user = request.user
                form.save()
            return render(request, 'home.html')
        else:
            form = ProfileForm()
            return render(request, 'complete_profile.html', {'form': form})
    else:
        return render(request, 'login.html')