def changeanswer(request):
    if 'origin' in request.GET and 'ques' in request.GET:
        orig = request.GET['origin']
        ques = request.GET['ques']
        request.session['questionc'] = ques
        request.session['ans'] = orig
        #return HttpResponse(chan)
        multiple_answer = Answer.objects.get(answer = orig)
        multiple_question = Questionans(question = ques)
        return render_to_response('changeans.html',{'answer':multiple_answer,'question':multiple_question})
    if request.POST:
        ans = request.POST['answer']
        anso = request.session.get('ans')
        multiple_answer = Answer.objects.get(answer = anso)
        ques = request.session.get('questionc')
        questionall = Question.objects.get(question = ques)#
        questionall.answers.remove(multiple_answer)#yichu yuanlai de 
        multiple_question = Questionans(question = ques)
        if (multiple_question):
            multiple_question.answers.remove(multiple_answer)
            #multi_answer = Answer.objects.get(answer = anso)
            #multi_answer.delete()shanchu zhiqian de jiudaan wei
        multiple_answer.answer = ans
        multiple_answer.save()
        multiple_question = Questionans(question = ques)#添加到我的回答中
        multiple_question.save()
        multiple_question.answers.add(multiple_answer)
        questionall.answers.add(multiple_answer)
        usern = request.session.get('username')#baoun
        user1 = User.objects.get(username = usern)
        user1.myanswers.add(multiple_question)
        del request.session['ans']
        del request.session['questionc']
        messa = '答案修改成功'
        return render_to_response('message.html',{'message':messa})
def changeaddanswer(request):#修改增加
    if 'origin' in request.GET and 'ques' in request.GET:
        orig = request.GET['origin']
        ques = request.GET['ques']
        request.session['questionc'] = ques
        request.session['ans'] = orig
        #return HttpResponse(chan)
        multiple_answer = Answer.objects.get(answer = orig)
        multiple_question = Questionans(question = ques)
        return render_to_response('changeaddans.html',{'answer':multiple_answer,'question':multiple_question})
    if request.POST:
        ans = request.POST['answer']
        anso = request.session.get('ans')
        ques = request.session.get('questionc')
        multiple_answer = Answer.objects.get(answer = anso)
        questionall = Question.objects.get(question = ques)#
        multiple_question = Questionans(question = ques)
        if (multiple_question):
            answers = multiple_question.answers.all()
            if multiple_answer in answers:
                multiple_question.answers.remove(multiple_answer)#之前回答过
                multiple_answer.answer = ans
            else:
                multiple_answer = Answer(answer = ans,score = 60)
        else:
            multiple_answer = Answer(answer = ans,score = 60)
        multiple_answer.save()
        multiple_question = Questionans(question = ques)#添加到我的回答中
        multiple_question.save()
        multiple_question.answers.add(multiple_answer)
        questionall.answers.add(multiple_answer)#添加到所有问题中
        usern = request.session.get('username')#baoun
        user1 = User.objects.get(username = usern)
        user1.myanswers.add(multiple_question)
        del request.session['questionc']
        del request.session['ans']
        messa = '答案修改成功'
        return render_to_response('message.html',{'message':messa})
def addanswer(request):
    if 'ques' in request.GET:
        ques = request.GET['ques']
        request.session['questiona'] = ques
        #return HttpResponse(chan)
        multiple_question = Questionans(question = ques)
        return render_to_response('addans.html',{'question':multiple_question})
    if request.POST:
        ans = request.POST['answer']
        multiple_answer = Answer(answer = ans,score = 60)
        multiple_answer.save()
        ques = request.session.get('questiona')
        multiple_question = Questionans(question = ques)
        multiple_question.save()
        multiple_question.answers.add(multiple_answer)
        questionall = Question.objects.get(question = ques)#tianjia jin suoyouwenti 
        questionall.answers.add(multiple_answer)
        usern = request.session.get('username')#baoun
        user1 = User.objects.get(username = usern)
        user1.myanswers.add(multiple_question)
        del request.session['questiona']
        messa = '答案添加成功'
        return render_to_response('message.html',{'message':messa})