Python Django-view没有';t返回HttpResponse对象
我面临着这个异常错误,对此我感到困惑,因为这个方法在类似的系统中工作,非常感谢任何帮助或指点。非常感谢 异常值:view Project.qna.views.add_投票未返回HttpResponse对象Python Django-view没有';t返回HttpResponse对象,python,django,Python,Django,我面临着这个异常错误,对此我感到困惑,因为这个方法在类似的系统中工作,非常感谢任何帮助或指点。非常感谢 异常值:view Project.qna.views.add_投票未返回HttpResponse对象 def add_vote(request): if request.method == "POST": q_id = request.POST['vote_form_q_id'] a_id = request.POST['vote_form_a_id'] vote_v
def add_vote(request):
if request.method == "POST":
q_id = request.POST['vote_form_q_id']
a_id = request.POST['vote_form_a_id']
vote_value = request.POST['vote_form_value']
ok = False
vote_num = None
name = None
if q_id:
try:
question = Question.objects.get(id=q_id)
question.num_vote += int(vote_value)
question.save()
vote_num = question.num_vote
name = 'Question_'+str(q_id)
ok = True
except Question.DoesNotExist:
pass
elif a_id:
try:
answer = Answer.objects.get(id=a_id)
answer.num_vote += int(vote_value)
answer.save()
vote_num = answer.num_vote
name = 'Answer_'+str(a_id)
ok = True
except Answer.DoesNotExist:
pass
if ok and request.is_ajax:
result = simplejson.dumps({
"vote_num": vote_num,
}, cls=LazyEncoder)
response = HttpResponse(result, mimetype='application/javascript')
response.set_cookie(name, datetime.now)
return response
请修改您的缩进,而且您似乎有很多可以简化的变通方法
每个django视图都应该返回一个HttpResponse对象,您似乎有很多地方不是这样的。要缩小您的问题范围,请将每个
pass
更改为print
语句,以查看代码实际失败的地方。如果你能展示你的帖子数据,那将非常有帮助。如果不看你对视图提出了什么样的请求,很难判断。但是你是在发邮件吗?因为您不以任何方式处理GET请求。压痕也是错误的。但这可能只是剪切和粘贴出错 这是未经测试的,但它是一种更干净、更健壮的设计,我相信它符合您的逻辑,并强调了返回HttpResponse
是必要的:
def add_vote(request):
if not (request.method == 'POST' and request.is_ajax):
return # Some suitable response here
try:
vote_value = int(request.POST.get('vote_form_value',''))
except ValueError as e:
pass # Some suitable response here
def saveobj(model, key, val): # helper function to reduce code repetition
item = model.objects.get(id=key)
item.num_vote += val
item.save()
return item.num_vote, '%s_%s' % (model.__class__.__name__, key)
for model, key in [(Question, 'vote_form_q_id'), (Answer, 'vote_form_a_id')]):
try:
new_vote_value, name = saveobj(model, request.POST[key], vote_value)
break
except (KeyError, ObjectDoesNotExist) as e:
continue # or error out
else:
pass # neither question or answer found - so suitable response here
# return ajax response here....
好。如果缩进在实际文件中是相同的,那么它将不起作用,因为这是错误的开始。提示:如果上次的
失败,会发生什么?