Django SingleObjectMixin - django

Question

I try to create simple SingleObjectMixin class, later i will use it with render_json_response() for providing AJAX data streaming. The main goal is basket for online store. So there is simple test class:
class Test(SingleObjectMixin):
model = GoodsDescription
slug_url_kwarg = 'test_id'
slug_field = 'artikul' # pk field in 'GoodsDescription' table
def get(self, request, *args, **kwargs):
self.object = self.get_object()
return render(request, 'temp_code.html', {'msg':self.object.name})
So the mistake is:
Environment:
Request Method: GET
Request URL: http://127.0.0.1:8000/admin/test%3D5/
Django Version: 1.10.5
Python Version: 2.7.12
Installed Applications:
['alexbase',
'django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
'easy_thumbnails']
Installed Middleware:
['django.middleware.security.SecurityMiddleware',
'django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.common.CommonMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware',
'django.middleware.clickjacking.XFrameOptionsMiddleware']
Traceback:
File "/home/user/.local/lib/python2.7/site-packages/django/core/handlers/exception.py" in inner
39. response = get_response(request)
File "/home/user/.local/lib/python2.7/site-packages/django/core/handlers/base.py" in _get_response
187. response = self.process_exception_by_middleware(e, request)
File "/home/user/.local/lib/python2.7/site-packages/django/core/handlers/base.py" in _get_response
185. response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "/home/user/.local/lib/python2.7/site-packages/django/contrib/auth/decorators.py" in _wrapped_view
23. return view_func(request, *args, **kwargs)
Exception Type: TypeError at /admin/test=5/
Exception Value: object() takes no parameters

Answer 1

SingleObjectMixin is, well, a mixin. It's not a full view you can inherit from. You should use DetailView instead.

Answer 2

URL conf string should be right:
url(r'^(?:test=(?P<test_id>\d+))/$', login_required(views.TestAJAXView), name='temp_code'),
Finally, i want to use class like this:
class TestAJAXView(JSONResponseMixin, SingleObjectMixin):
model = GoodsDescription
slug_url_kwarg = 'test_id'
slug_field = 'artikul'
json_dumps_kwargs = {"indent": 2}
def get(self, request, *args, **kwargs):
self.object = self.get_object()
context_dict = {
"category": self.object.category,
"name": self.object.name
}
return self.render_json_response(context_dict)
But exception was raised, so i tried this:
class Test(SingleObjectMixin):
model = GoodsDescription
slug_url_kwarg = 'test_id'
slug_field = 'artikul' # pk field in 'GoodsDescription' table
def get(self, request, *args, **kwargs):
self.object = self.get_object()
return render(request, 'temp_code.html', {'msg':self.object.name})