def vote(request,image_id,value):
cookie_key = "image_%s"%image_id
days_expire = 1
if request.is_ajax and not request.COOKIES.get(cookie_key):
try:
user_ip = get_client_ip(request)
time_ago = datetime.datetime.now()-datetime.timedelta(days=days_expire)
Vote.objects.get(user_ip=user_ip,created__gt=time_ago,image_id=image_id)
except ObjectDoesNotExist:
response = HttpResponse()
try:
image = Image.objects.get(pk=image_id)
except ObjectDoesNotExist:
return response
vote = Vote()
vote.value = 1 if value=='up' else -1
vote.user_ip = user_ip
vote.image = image
vote.created = datetime.datetime.now()
vote.save()
image.rating = Vote.objects.filter(image=image)\
.aggregate(sum=Sum('value')).get('sum')
image.save()
recalc_sizes(image.miracle)
image =Image.objects.get(id=image.pk)
new_data = {'rating':image.rating,'id':image.pk,'size':image.size}
new_data_encoded = json.dumps(new_data)
response.write(new_data_encoded)
set_cookie(response,cookie_key,True,days_expire)
return response
return HttpResponse()
def vote(request, tid):
"""
用户给某个主题投票
"""
tp = get_object_or_404(Topic, pk=tid)
comment = request.POST.get('comment', ' ')
try:
Vote.objects.get(topic=tp, member=request.user)
except Vote.DoesNotExist:
vote = Vote(topic=tp, member=request.user, comment=comment)
vote.save()
return HttpResponseRedirect('/topic/%s/' % tid)