models.User.objects.filter()和models.User.objects.get()的区别

models.User.objects.filter()
返回一个列表,获取元素需要进行切片处理.
models.User.objects.get()返回一个元素

解释一下这段代码def price(request): if request.method == "GET": contact_list = models.zufang.objects.values_list().order_by('id') contact_list = [i for i in contact_list] new_contact_list = random.sample(contact_list, 3) user_name = models.Collection.objects.get(name=request.session.get('user_name')) if user_name.count > 0: collection = user_name.collection collection = collection.split(",") collection = [int(i) for i in collection] find_index = [] for item in collection: find_index.append(models.zufang.objects.values_list().filter(id=item)[0]) find_index = [i for i in find_index] else: collection = [] find_index = [] if request.GET.get("update_item") == "ok": return JsonResponse({"new_contact_list": new_contact_list, "find_index": find_index}, safe=False) return render(request, 'price.html', locals()) else: user_name = models.Collection.objects.get(name=request.session.get('user_name')) count = user_name.count if user_name.count > 0: collection = user_name.collection collection = collection.split(",") else: collection = [] if request.POST.get("new") == "true": count += 1 new_collection = request.POST.get("data_id") collection.append(new_collection) collection = ','.join(collection) new = models.Collection.objects.get(name=request.session.get('user_name')) new.collection = collection new.count = count new.save() else: count -= 1 new_collection = request.POST.get("data_id") collection.remove(new_collection) collection = ','.join(collection) new = models.Collection.objects.get(name=request.session.get('user_name')) new.collection = collection new.count = count new.save() return JsonResponse({}, safe=False)
04-19
评论
添加红包

请填写红包祝福语或标题

红包个数最小为10个

红包金额最低5元

当前余额3.43前往充值 >
需支付:10.00
成就一亿技术人!
领取后你会自动成为博主和红包主的粉丝 规则
hope_wisdom
发出的红包
实付
使用余额支付
点击重新获取
扫码支付
钱包余额 0

抵扣说明:

1.余额是钱包充值的虚拟货币,按照1:1的比例进行支付金额的抵扣。
2.余额无法直接购买下载,可以购买VIP、付费专栏及课程。

余额充值