Question

我想将数据放入Excel工作表。

我写了以下代码：

data_dict ={}
data_dict =defaultdict(dict)
def try_to_int(arg):
    try:
        return int(arg)
    except:
        return arg

def main():
    book4 = xlrd.open_workbook('./data/excel1.xlsx')
    sheet4 = book4.sheet_by_index(0)

    tag_list = sheet4.row_values(0)[1:]
    for row_index in range(1, sheet4.nrows):
        row = sheet4.row_values(row_index)[1:]
        row = list(map(try_to_int, row))
        value = dict(zip(tag_list, row))

        data_dict[value['age']].update(value)

        user2 = User.objects.filter(name=data_dict['name'])
        print(user2)
        if user2:
            if data_dict['name'] == 'Tom':
                user2.update(close_rate_under_300_ny = data_dict['300'],
                close_rate_under_700_ny = data_dict['d700'],
                close_rate_upper_700_ny = data_dictt['u700'])
            elif data_dict['name'] == 'John':
                user2.update(close_rate_under_300_eu = data_dict['300'],
                close_rate_under_700_eu = data_dict['d700'],
                close_rate_upper_700_eu = data_dict['u700'])
            elif data_dict['name'] == 'Blear':
                user2.update(close_rate_under_300_uk = data_dict['300'],
                close_rate_under_700_uk = data_dict['d700'],
                close_rate_upper_700_uk = data_dict['u700'])
            else:
                user2.update(close_rate_under_300_ch=data_dict['300'],
                close_rate_under_700_ch = data_dict['d700'],
                close_rate_upper_700_ch = data_dict['u700'])

main()

在print（user2）中，显示了许多<QuerySet []>。所以我想也许用户2无法获得此外，在if data_dict['name'] == 'Tom':的if-else语句中，user2未更新。

我的代码有什么问题？顺便说一下，data_dict正常。

Answer 1

我认为您使用的是自定义用户模型。因此，如果您给出了User类及其方法的定义，那就更清楚了。

根据我的理解，我认为你需要使用

  user2 = User.objects.get(name=data_dict['name'])

而不是：

  user2 = User.objects.filter(name=data_dict['name'])

filter（）返回一个Queryset，其中包含满足指定过滤器的对象。

因此，您需要使用“username”或“id”等用户的唯一属性才能获得单个用户。如果表中有多个具有相同名称的用户，则使用name将返回多个对象。

为了更新用户（因为您没有给出更新的定义），请尝试：

  if user2:
      if data_dict['name'] == 'Tom':
          user2.close_rate_under_300_ny = data_dict['300']
          user2.close_rate_under_700_ny = data_dict['d700']
          user2.close_rate_upper_700_ny = data_dictt['u700']
          user2.save()
      elif data_dict['name'] == 'John':
          user2.close_rate_under_300_eu = data_dict['300']
          user2.close_rate_under_700_eu = data_dict['d700']
          user2.close_rate_upper_700_eu = data_dict['u700']
          user2.save()
      elif data_dict['name'] == 'Blear':
          user2.close_rate_under_300_uk = data_dict['300']
          user2.close_rate_under_700_uk = data_dict['d700']
          user2.close_rate_upper_700_uk = data_dict['u700']
          user2.save()
      else:
          user2.close_rate_under_300_ch=data_dict['300']
          user2.close_rate_under_700_ch = data_dict['d700']
          user2.close_rate_upper_700_ch = data_dict['u700']
          user2.save()

而不是

  if user2:
        if data_dict['name'] == 'Tom':
            user2.update(close_rate_under_300_ny = data_dict['300'],
            close_rate_under_700_ny = data_dict['d700'],
            close_rate_upper_700_ny = data_dictt['u700'])
        elif data_dict['name'] == 'John':
            user2.update(close_rate_under_300_eu = data_dict['300'],
            close_rate_under_700_eu = data_dict['d700'],
            close_rate_upper_700_eu = data_dict['u700'])
        elif data_dict['name'] == 'Blear':
            user2.update(close_rate_under_300_uk = data_dict['300'],
            close_rate_under_700_uk = data_dict['d700'],
            close_rate_upper_700_uk = data_dict['u700'])
        else:
            user2.update(close_rate_under_300_ch=data_dict['300'],
            close_rate_under_700_ch = data_dict['d700'],
            close_rate_upper_700_ch = data_dict['u700'])

模型未更新

1 个答案: