Re: Problem UserAdmin with GenericStackedInline in Django 1.5c2

Hi maybe you forget this 

    # Re-register UserAdmin  admin.site.unregister(User)  admin.site.register(User, UserAdmin)

https://docs.djangoproject.com/en/1.5/topics/auth/customizing/#extending-the-existing-user-model
    

On Wed, Feb 27, 2013 at 2:35 AM, Witold Greń <witold.gren@gmail.com> wrote:

Hi, I have a problem UserAdmin with GenericStackedInline in Django 1.5c2.

#model.py

from django.contrib.auth.models import BaseUserManager, AbstractBaseUser, PermissionsMixin

from django.conf import settings

#etc...

class Addresses(models.Model):

    """

    Dane adresowe.

    """

    name = models.CharField(max_length=200, verbose_name='Nazwa')

    street = models.CharField(max_length=200, verbose_name='Ulica')

    no_house = models.IntegerField(verbose_name='Numer budynku')

    no_local = models.IntegerField(verbose_name='Numer lokalu', blank=True, null=True)

    postal_code = models.CharField(max_length=200, verbose_name='Kod pocztowy')

    city = models.CharField(max_length=200, verbose_name='Miasto')

    region = models.CharField(max_length=200, verbose_name='Województwo')

    content_type = models.ForeignKey(ContentType,verbose_name='Rodzaj modelu', related_name="content_type_%(class)s",)

    object_id = models.PositiveIntegerField(verbose_name='Rodzaj obiekt', db_index=True)

    content_object = generic.GenericForeignKey('content_type', 'object_id')

class Partners(AbstractBaseUser, PermissionsMixin):

    """

    Użytkownik

    """

    login = models.CharField(max_length=200, verbose_name='Login', help_text=_('Required. 30 characters or fewer. Letters, numbers and @/./+/-/_ characters'), unique=True, db_index=True)

    company = models.BooleanField(verbose_name='Firma/Prywatny')

    company_name = models.CharField(max_length=200, verbose_name='Nazwa firmy', blank=True, null=True)

    www = models.URLField(verbose_name='Strona internetowa', blank=True, null=True)

    name = models.CharField(max_length=200, verbose_name='Imię', blank=True, null=True)

    surname = models.CharField(max_length=200, verbose_name='Nazwisko', blank=True, null=True)

    phone = models.CharField(max_length=200, verbose_name='Telefon', blank=True, null=True)

    email = models.EmailField(verbose_name='Email', blank=True, null=True)

    regulations = models.BooleanField(verbose_name='Regulamin', default=True)

    date_of_birth = models.DateField(verbose_name='Data urodzenia', blank=True, null=True)

    is_staff = models.BooleanField(_('staff status'), default=True, help_text=_('Designates whether the user can log into this admin site.'))

    is_active = models.BooleanField(_('active'), default=True, help_text=_('Designates whether this user should be treated as active. Unselect this instead of deleting accounts.'))

    date_joined = models.DateTimeField(_('date joined'), auto_now_add=True)

    

    objects = PartnersManager()

    USERNAME_FIELD = 'login'

    REQUIRED_FIELDS = []

    def get_full_name(self):

        return '%s %s' % (self.name, self.surname)

    def get_short_name(self):

        return self.login

    def __unicode__(self):

        return self.login

    class Meta:

        verbose_name = "Użytkownik"

        verbose_name_plural = "Użytkownicy"

        ordering = ['id']

        get_latest_by = "id"

#admim.py:

from django.contrib.auth.admin import UserAdmin

from core.forms import PartnersChangeForm, PartnersCreationForm

#etc...

class AddressAdminInline(generic.GenericStackedInline):

    model = Addresses

    ct_field = "content_type"

    ct_fk_field = "object_id"

    extra = 1

    max_num = 1

class PartnersAdmin(UserAdmin):

    form = PartnersChangeForm

    add_form = PartnersCreationForm

    list_display = ('login', 'name', 'surname', 'is_superuser')

    list_filter = ('is_superuser',)

    save_on_top = True

    inlines = [

        AddressAdminInline

    ]

    fieldsets = (

        (None, {

            'fields': ('login', 'password')

        }),

        ('Personal info', {

            'fields': ('email', 'www', 'date_of_birth')

        }),

        ('Personal info 2', {

            'fields': ('company','company_name', 'name', 'surname', 'phone', 'regulations' )

        }),

        ('Permissions', {

            'fields': ('is_superuser', 'is_staff', 'is_active', 'groups', 'user_permissions')

        }),

        ('Important dates', {

            'fields': ('last_login',)

        }),

    )

    add_fieldsets = (

        (None, {

            'classes': ('wide',),

            'fields': ('login', 'password1', 'password2')}

        ),

    )

    search_fields = ('login',)

    ordering = ('login',)

    filter_horizontal = ('groups', 'user_permissions')

admin.site.register(Partners, PartnersAdmin)

admin.site.register(Addresses)

when run server used"./manage.py runserver" and go to User in DjangoAdminPanel i show:

Exception at /admin/core/partners/1/

    <class 'core.models.Addresses'> has more than 1 ForeignKey to <class 'core.models.Partners'>

Request Method:	GET
Request URL:	http://localhost:8000/admin/core/partners/1/
Django Version:	1.5c2
Exception Type:	Exception
Exception Value:	<class 'core.models.Addresses'> has more than 1 ForeignKey to <class 'core.models.Partners'>
Exception Location:	/Library/Python/2.7/site-packages/django/forms/models.py in _get_foreign_key, line 825
Python Executable:	/usr/bin/python
Python Version:	2.7.2

Traceback:

File "/Library/Python/2.7/site-packages/django/core/handlers/base.py" in get_response

  92.                     response = middleware_method(request)

File "/Library/Python/2.7/site-packages/django/utils/importlib.py" in import_module

  35.     __import__(name)

File "/Users/user/projects/project-name/project-name/urls.py" in <module>

  6. admin.autodiscover()

File "/Library/Python/2.7/site-packages/django/contrib/admin/__init__.py" in autodiscover

  29.             import_module('%s.admin' % app)

File "/Library/Python/2.7/site-packages/django/utils/importlib.py" in import_module

  35.     __import__(name)

File "/Users/user/projects/project-name/core/admin.py" in <module>

  125. admin.site.register(Partners, PartnersAdmin)

File "/Library/Python/2.7/site-packages/django/contrib/admin/sites.py" in register

  98.                 validate(admin_class, model)

File "/Library/Python/2.7/site-packages/django/contrib/admin/validation.py" in validate

  189.             validate_inline(inline, cls, model)

File "/Library/Python/2.7/site-packages/django/contrib/admin/validation.py" in validate_inline

  200.     fk = _get_foreign_key(parent_model, cls.model, fk_name=cls.fk_name, can_fail=True)

File "/Library/Python/2.7/site-packages/django/forms/models.py" in _get_foreign_key

  825.             raise Exception("%s has more than 1 ForeignKey to %s" % (model, parent_model))

Exception Type: Exception at /admin/core/partners/1/

Exception Value: <class 'core.models.Addresses'> has more than 1 ForeignKey to <class 'core.models.Partners'

Where is the problem? Please, help... ;)

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