我是 Django 新手,对如何做到这一点有一些疑问。我已经安装了一个名为 Django-voting 的 APP,https://github.com/jezdez/django-voting/
这个APP允许用户对自己的对象进行投票。我需要否认这一点,但不知道该怎么做。我如何知道对象的所有者?
我要覆盖的代码是这个视图:
def vote_on_object(request, model, direction, post_vote_redirect=None,
object_id=None, slug=None, slug_field=None, template_name=None,
template_loader=loader, extra_context=None, context_processors=None,
template_object_name='object', allow_xmlhttprequest=False):
"""
Generic object vote function.
The given template will be used to confirm the vote if this view is
fetched using GET; vote registration will only be performed if this
view is POSTed.
If ``allow_xmlhttprequest`` is ``True`` and an XMLHttpRequest is
detected by examining the ``HTTP_X_REQUESTED_WITH`` header, the
``xmlhttp_vote_on_object`` view will be used to process the
request - this makes it trivial to implement voting via
XMLHttpRequest with a fallback for users who don't have JavaScript
enabled.
Templates:``<app_label>/<model_name>_confirm_vote.html``
Context:
object
The object being voted on.
direction
The type of vote which will be registered for the object.
"""
if allow_xmlhttprequest and request.is_ajax():
return xmlhttprequest_vote_on_object(request, model, direction,
object_id=object_id, slug=slug,
slug_field=slug_field)
if extra_context is None:
extra_context = {}
if not request.user.is_authenticated():
return redirect_to_login(request.path)
try:
vote = dict(VOTE_DIRECTIONS)[direction]
except KeyError:
raise AttributeError("'%s' is not a valid vote type." % direction)
# Look up the object to be voted on
lookup_kwargs = {}
if object_id:
lookup_kwargs['%s__exact' % model._meta.pk.name] = object_id
elif slug and slug_field:
lookup_kwargs['%s__exact' % slug_field] = slug
else:
raise AttributeError('Generic vote view must be called with either '
'object_id or slug and slug_field.')
try:
obj = model._default_manager.get(**lookup_kwargs)
except ObjectDoesNotExist:
raise Http404('No %s found for %s.' %
(model._meta.app_label, lookup_kwargs))
if request.method == 'POST':
if post_vote_redirect is not None:
next = post_vote_redirect
elif 'next' in request.REQUEST:
next = request.REQUEST['next']
elif hasattr(obj, 'get_absolute_url'):
if callable(getattr(obj, 'get_absolute_url')):
next = obj.get_absolute_url()
else:
next = obj.get_absolute_url
else:
raise AttributeError('Generic vote view must be called with either '
'post_vote_redirect, a "next" parameter in '
'the request, or the object being voted on '
'must define a get_absolute_url method or '
'property.')
Vote.objects.record_vote(obj, request.user, vote)
return HttpResponseRedirect(next)
else:
if not template_name:
template_name = '%s/%s_confirm_vote.html' % (
model._meta.app_label, model._meta.object_name.lower())
t = template_loader.get_template(template_name)
c = RequestContext(request, {
template_object_name: obj,
'direction': direction,
}, context_processors)
for key, value in extra_context.items():
if callable(value):
c[key] = value()
else:
c[key] = value
response = HttpResponse(t.render(c))
return response
我想我必须在这里添加某种验证,
Vote.objects.record_vote(obj, request.user, vote)
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最好的祝福,