NoReverseMatch error raise when adding a new entry in django admin

[Weifeng Pan]

I got this wired issue. who can help.

Python 3.6

Django Latest 2.0.2

------------following are stack trace---------------

Internal Server Error: /admin/nmm_tokenservice/userprofile/add/ Traceback (most recent call last): File "C:\Python36\lib\site-packages\django\core\handlers\exception.py", line 35, in inner response = get_response(request) File "C:\Python36\lib\site-packages\django\core\handlers\base.py", line 128, in _get_response response = self.process_exception_by_middleware(e, request) File "C:\Python36\lib\site-packages\django\core\handlers\base.py", line 126, in _get_response response = wrapped_callback(request, *callback_args, **callback_kwargs) File "C:\Python36\lib\site-packages\django\contrib\admin\options.py", line 574, in wrapper return self.admin_site.admin_view(view)(*args, **kwargs) File "C:\Python36\lib\site-packages\django\utils\decorators.py", line 142, in _wrapped_view response = view_func(request, *args, **kwargs) File "C:\Python36\lib\site-packages\django\views\decorators\cache.py", line 44, in _wrapped_view_func response = view_func(request, *args, **kwargs) File "C:\Python36\lib\site-packages\django\contrib\admin\sites.py", line 223, in inner return view(request, *args, **kwargs) File "C:\Python36\lib\site-packages\django\contrib\admin\options.py", line 1553, in add_view return self.changeform_view(request, None, form_url, extra_context) File "C:\Python36\lib\site-packages\django\utils\decorators.py", line 62, in _wrapper return bound_func(*args, **kwargs) File "C:\Python36\lib\site-packages\django\utils\decorators.py", line 142, in _wrapped_view response = view_func(request, *args, **kwargs) File "C:\Python36\lib\site-packages\django\utils\decorators.py", line 58, in bound_func return func.__get__(self, type(self))(*args2, **kwargs2) File "C:\Python36\lib\site-packages\django\contrib\admin\options.py", line 1450, in changeform_view return self._changeform_view(request, object_id, form_url, extra_context) File "C:\Python36\lib\site-packages\django\contrib\admin\options.py", line 1495, in _changeform_view return self.response_add(request, new_object) File "C:\Python36\lib\site-packages\django\contrib\admin\options.py", line 1098, in response_add current_app=self.admin_site.name, File "C:\Python36\lib\site-packages\django\urls\base.py", line 88, in reverse return iri_to_uri(resolver._reverse_with_prefix(view, prefix, *args, **kwargs)) File "C:\Python36\lib\site-packages\django\urls\resolvers.py", line 632, in _reverse_with_prefix raise NoReverseMatch(msg) django.urls.exceptions.NoReverseMatch: Reverse for 'nmm_tokenservice_userprofile_change' with arguments '('',)' not found. 1 pattern(s) tried: ['admin/nmm_tokenservice\\/userprofile\\/(?P<object_id>.+)\\/change\\/$']

---------------- here is my model-------------------

class UserProfile(models.Model):

#base information

user = models.OneToOneField(User, on_delete=models.deletion.CASCADE, verbose_name='系统账户', related_name='profile')

uid = UIDField(verbose_name='用户ID', primary_key=True, editable=False, null=False, blank=False)

imuid = UIDField(verbose_name='IM用户ID', editable=False, null=True, blank=True)

nickname = models.CharField(verbose_name='昵称', max_length=20, null=True, blank=True, db_index=True)

tel = models.CharField(verbose_name='手机号码', max_length=20, null=True, blank=False)

#status and level

status = models.CharField(verbose_name='状态', max_length=20, null=False, blank=False, default=USER_STATUS[0][0], choices=USER_STATUS)

level = models.PositiveIntegerField(verbose_name='级别', null=False, blank=False, default=1, db_index=True)

#org information

city = CityCodeField(verbose_name='城市', null=True, blank=False)

org = CodeField(verbose_name='学校或组织机构代码', null=True, blank=True, db_index=True)

textbookcode = LabelCodeField(verbose_name='教材(标签代码)', help_text='请填写标签代码', null=True, blank=True, db_index=True)

gradecode = LabelCodeField(verbose_name='年级/级别(标签代码)', help_text='请填写标签代码', null=True, blank=True, db_index=True)

#role

role = UserRoleField(verbose_name='角色', null=False, blank=False, choices=UserRole_CHOICES, default=UserRole.user.name)

### teacher specific attributes ###

synopsis = models.TextField(verbose_name='个人简介', max_length=500, null=True, blank=True)

workhistory = models.TextField(verbose_name='工作经历', max_length=500, null=True, blank=True)

cert = models.TextField(verbose_name='荣誉证书', max_length=500, null=True, blank=True)

labels = models.CharField(verbose_name='个人标签', max_length=100, null=True, blank=True)

scope = models.CharField(verbose_name='出题范围', help_text='老师的出题范围,仅对老师角色有效', max_length=100, null=True, blank=True)

title = models.PositiveIntegerField(verbose_name='头衔级别', null=False, blank=False, default=1, db_index=True)

### promotion and relation ###

promotioncode = PromotionCodeField(verbose_name='推荐码', help_text='用于推荐其他用户或者老师', null=True, blank=True)

broker_promote = UIDField(verbose_name='推荐者用户ID', null=True, blank=True, db_index=True)

broker_firstserve = UIDField(verbose_name='首服老师用户ID', null=True, blank=True, db_index=True)

class Meta:

verbose_name = '用户信息'

verbose_name_plural = '用户信息'

-----------here is the admin class---------------

class UserProfileAdmin(admin.ModelAdmin):

# list page

list_display = ('date_joined', 'uid', 'user', 'tel', 'imuid', 'nickname', 'role', 'city', 'level', 'title', 'status', 'promotioncode', 'broker_promote', 'broker_firstserve', )

list_display_links = ('uid', )

ordering = ('uid', )

search_fields = [

'=uid',

'=tel',

'nickname',

'user__username',

]

list_filter = ('role', 'city', 'level', 'title', 'status', )

def date_joined(self, obj):

return obj.user.date_joined

date_joined.admin_order_field = 'user__date_joined'

date_joined.short_description = '注册日期'

def save_model(self, request, obj, form, change):

if not obj.broker_promote:

obj.broker_promote = None

if not obj.broker_firstserve:

obj.broker_firstserve = None

super(UserProfileAdmin, self).save_model(request, obj, form, change)

[Etienne Robillard]

Hi Weifeng,

plz show us your urls.py...

Etienne

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[Julio Biason]

Hi Weifeng,

I think the problem is here:

django.urls.exceptions.NoReverseMatch: Reverse for 'nmm_tokenservice_userprofile_change' with arguments '('',)' not found. 1 pattern(s) tried: ['admin/nmm_tokenservice\\/userprofile\\/(?P<object_id>.+)\\/change\\/$']

By all the Django is saying, you're trying to reverse the URL for `mm_tokenservice_userprofile_change` passing an empty string as args; but your regex por it requres an `object_id` that must have at least 1 character (that's what `.+` means). So, because you're passing no parameters, it can't resolve the URL properly.

You *need* to pass the object_id, as per your URL specification, on your reverse.

Hope that helps.

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