Django Tastypie Import Error on resources - django

Question

I have something strange going on that I can't seem to crack. I'm building an API with Tastypie and when I issue this call in my browser against localserver, it works fine: localserver/api/v1/userfavorite/?user__username=testowner
However, in my code, I'm getting an error: "int() argument must be a string or a number, not 'SimpleLazyObject'". I realize it has to do with the user being treated as a request.user object, but I can't figure out where/why. I'm very confused why it works when issuing the API call in the browser, but in the code it is not working.
Here is my code:
# views.py
#login_required
def favorites(request):
'''
display a list of posts that a user has marked as favorite
'''
user = request.user
favorites_url = settings.BASE_URL + "/api/v1/userfavorite/?user__username=" + user.username
favorites = get_json(favorites_url)
return render(request, "maincontent/favorites.html", {'favorites':favorites})
# resources.py
class UserFavoriteResource(ModelResource):
'''
manage post favorites by a user. Users can use a favorites list
to easily view posts that they have liked or deemed important.
'''
user = fields.ForeignKey(UserResource, 'user')
post = fields.ForeignKey('blog.api.resources.PostResource', 'post', full=True)
class Meta:
queryset = UserFavorite.objects.all()
allowed_methods = ['get', 'post', 'delete']
authentication = Authentication()
authorization = Authorization()
filtering = {
'user':ALL_WITH_RELATIONS
}
def hydrate_user(self, bundle):
# build the current user to save for the favorite instance
bundle.data['user'] = bundle.request.user
return bundle
def get_object_list(self, request):
# filter results to the current user
return super(UserFavoriteResource, self).get_object_list(request)\
.filter(user=request.user)
# utils.py
def get_json(url):
# return the raw json from a request without any extraction
data = requests.get(url).json()
return data
Some notes:
1. I have the post method working to create the UserFavorite item
2. I can verify that the favorites_url is being generated correctly
3. I have tried hardcoding the favorites_url as well, same error.
EDIT: 4. I am logged in while doing this, and have verified that request.user returns the user

Answer 1

This doesn't work because there is Anonymous user in your request.user. You are using Authentication it does not require user to be logged in. So if you perform requests call that request is not authenticated and request.user is AnonymousUser and that error occurs when you try to save Anonymous user to db. Tastypie documentation advices to not using browsers to testing things up, just curl instead. Browsers stores a lot of data and yours one probably remembered you have been logged to admin panel in localhost:8000 on another tab that's why it worked in browser.
I would prefer something like this:
def hydrate_user(self, bundle):
"""\
Currently logged user is default.
"""
if bundle.request.method in ['POST', 'PUT']:
if not bundle.request.user.is_authenticated():
raise ValidationError('Must be logged in')
bundle.obj.user = bundle.request.user
bundle.data['user'] = \
'/api/v1/userauth/user/{}'.format(bundle.request.user.pk)
return bundle