django.db.utils.IntegrityError: UNIQUE fehlgeschlagen: core_profile.user_id

Question

ich mein erstes Webprojekt mit django Start

-Ich einen APP „Kern“ geschaffen Registrierung zu handhaben und anmelden

-Während die Registrierung i der Benutzer möchte einige zusätzliche Informationen einreichen mit OneToOne ein Benutzerprofil

-I erweiterte Djangos Standard-User-Modell Beziehung

diesen Fehler i bin Gettin zu erstellen wenn ich versuche, Dateien

Traceback zu laden: einige meiner Code

File "C:\Python36\lib\site-packages\django\db\backends\utils.py" in execute 
    65.     return self.cursor.execute(sql, params) 

File "C:\Python36\lib\site-packages\django\db\backends\sqlite3\base.py" in 
execute 
328.   return Database.Cursor.execute(self, query, params) 

The above exception (UNIQUE constraint failed: core_profile.user_id) was the 
direct cause of the following exception: 

File "C:\Python36\lib\site-packages\django\core\handlers\exception.py" in 
inner 
    41.    response = get_response(request) 

File "C:\Python36\lib\site-packages\django\core\handlers\base.py" in 
_get_response 
    187.     response = self.process_exception_by_middleware(e, 
request) 

File "C:\Python36\lib\site-packages\django\core\handlers\base.py" in 
_get_response 
    185.     response = wrapped_callback(request, *callback_args, 
**callback_kwargs) 

File "C:\djangoprojects\mysite\mysite\core\views.py" in upload_files 
    92.     document.save() 

File "C:\Python36\lib\site-packages\django\db\models\base.py" in save 
    806.      force_update=force_update, 
update_fields=update_fields) 

File "C:\Python36\lib\site-packages\django\db\models\base.py" in save_base 
    836.    updated = self._save_table(raw, cls, force_insert, 
force_update, using, update_fields) 

File "C:\Python36\lib\site-packages\django\db\models\base.py" in _save_table 
    922.    result = self._do_insert(cls._base_manager, using, 
fields, update_pk, raw) 

File "C:\Python36\lib\site-packages\django\db\models\base.py" in _do_insert 
    961.        using=using, raw=raw) 

File "C:\Python36\lib\site-packages\django\db\models\manager.py" in 
manager_method 
    85.     return getattr(self.get_queryset(), name)(*args, 
**kwargs) 

File "C:\Python36\lib\site-packages\django\db\models\query.py" in _insert 
    1060.   return 
query.get_compiler(using=using).execute_sql(return_id) 

File "C:\Python36\lib\site-packages\django\db\models\sql\compiler.py" in 
execute_sql 
    1099.     cursor.execute(sql, params) 

File "C:\Python36\lib\site-packages\django\db\backends\utils.py" in execute 
    80.    return super(CursorDebugWrapper, self).execute(sql, 
params) 

File "C:\Python36\lib\site-packages\django\db\backends\utils.py" in execute 
    65.     return self.cursor.execute(sql, params) 

File "C:\Python36\lib\site-packages\django\db\utils.py" in __exit__ 
    94.     six.reraise(dj_exc_type, dj_exc_value, traceback) 

File "C:\Python36\lib\site-packages\django\utils\six.py" in reraise 
    685.    raise value.with_traceback(tb) 

File "C:\Python36\lib\site-packages\django\db\backends\utils.py" in execute 
    65.     return self.cursor.execute(sql, params) 

File "C:\Python36\lib\site-packages\django\db\backends\sqlite3\base.py" in 
execute 
    328.   return Database.Cursor.execute(self, query, params) 

Exception Type: IntegrityError at /core/upload_files/ 
Exception Value: UNIQUE constraint failed: core_profile.user_id 

:

Modelle:

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) 
    profile_completed = models.BooleanField(default=False) 
#DOCUMENTS TO UPLOAD 
    id_card = models.FileField(('Carte Nationale d\'Identité')) 
    drive_licence = models.FileField(('Permis de conduire')) 
    police_record = models.FileField(('Casier judiciaire')) 
    medical_visit = models.FileField(('Visite médicale')) 
    rib = models.FileField(('Relevé d\'Identité Bancaire (RIB)')) 
    uploaded_at = models.DateTimeField(auto_now_add=True) 
    docs_are_checked = models.BooleanField(default=False) 

    def __str__(self): 
    return self.user.username 

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

Formen:

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') 

class DocumentForm(forms.ModelForm): 
    id_card = forms.FileField(('Carte Nationale d\'Identité'), 
    help_text='Required. Recto/Verso.') 
    class Meta: 
    model = Profile 
    fields = ('id_card', 'drive_licence', 
       'police_record', 'medical_visit', 'rib',) 

Ansichten:

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(): 
      profile = form.save(commit=False) 
      profile.profile_completed = True 
      profile.save() 
      return redirect('upload_files') 
    else: 
     form = ProfileForm() 
     return render(request, 'complete_profile.html', {'form': form}) 
else: 
    return redirect('login') 

def upload_files(request): 
if request.user.is_authenticated(): 
    if request.method == 'POST': 
     form = DocumentForm(request.POST, request.FILES) 
     if form.is_valid(): 
      document = form.save(commit=False) 
      document.user = request.user 
      document.save() 
      return render(request, 'home.html') 
    else: 
     form = DocumentForm() 
     return render(request, 'upload_files.html', {'form': form}) 
else: 
    return render(request, 'login.html') 

Answer 1

Ich kann nicht genau erklären, warum Sie den Fehler erhalten. Da Sie jedoch das Profil in Ihrem Signalhandler erstellen, sollten Sie die Instanz an das Formular übergeben. Das bedeutet, dass Sie document.user nicht mehr im if form.is_valid() Block setzen müssen.

Beachten Sie, dass es empfohlen wird, den Benutzer nach einer erfolgreichen Postanforderung umzuleiten, um doppelte Übermittlungen zu verhindern.

if form.is_valid(): 
    document = form.save() 
    return redirect('/')