Python 保存到db时需要字符串或字节，如对象django

我试图将我的模型保存到db，但我不断得到错误

预期的字符串或字节，如object

。我试着搜索，我发现我正在以元组的形式传递它，但我不知道我在哪里犯了错误

以下是邮政路线的视图：

class PreviousSearchView(View):
def post(self, request):
    if request.method == 'POST':
        searchdomain = request.POST['searchdomain']
        domain = whois.whois(searchdomain) 
        date = datetime.datetime.now()
        domain_name = domain.domain_name
        creation_date = domain.creation_date
        expiration_date = domain.expiration_date
        org = domain.org
        city = domain.city
        state = domain.state
        zipcode = domain.zipcode
        country = domain.country
        search = Search(
            searchdomain = domain_name,
            org = domain.org,
            city = domain.city,
            state = domain.state,
            zipcode = domain.zipcode,
            country = domain.country,
            user = User.objects.get(id = request.user.id),
            date = date,
            creation_date = domain.creation_date,
            expiration_date = domain.expiration_date,
        )
        search.save() ## This is where the error is coming
    return redirect('/')

模型如下：

from django.db import models
from django.contrib.auth.models import AbstractUser

# Create your models here.

class User(AbstractUser):
    pass


class Search(models.Model):
    searchdomain = models.CharField(max_length=50)
    creation_date = models.DateField(null=True)
    expiration_date = models.DateField(null=True)
    org = models.CharField(max_length=80, null=True)
    date = models.DateField(null=True)
    city = models.CharField(max_length=30, null=True)
    state = models.CharField(max_length=30, null=True)
    zipcode = models.IntegerField(null=True)
    country = models.CharField(max_length=30, null=True)
    user = models.ForeignKey(User, on_delete=models.CASCADE)

    def __str__(self):
        return self.searchdomain

以下是完整的回溯：

Traceback (most recent call last):
  File "C:\Users\indianLeo\.virtualenvs\whois_app-4Kx6o2xE\lib\site-packages\django\core\handlers\exception.py", line 47, in inner
    response = get_response(request)
  File "C:\Users\indianLeo\.virtualenvs\whois_app-4Kx6o2xE\lib\site-packages\django\core\handlers\base.py", line 181, in _get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
  File "C:\Users\indianLeo\.virtualenvs\whois_app-4Kx6o2xE\lib\site-packages\django\views\generic\base.py", line 70, in view
    return self.dispatch(request, *args, **kwargs)
  File "C:\Users\indianLeo\.virtualenvs\whois_app-4Kx6o2xE\lib\site-packages\django\views\generic\base.py", line 98, in dispatch
    return handler(request, *args, **kwargs)
  File "E:\whois_app\whois_app\search\views.py", line 45, in post
    search.save()
  File "C:\Users\indianLeo\.virtualenvs\whois_app-4Kx6o2xE\lib\site-packages\django\db\models\base.py", line 753, in save
    self.save_base(using=using, force_insert=force_insert,
  File "C:\Users\indianLeo\.virtualenvs\whois_app-4Kx6o2xE\lib\site-packages\django\db\models\base.py", line 790, in save_base
    updated = self._save_table(
  File "C:\Users\indianLeo\.virtualenvs\whois_app-4Kx6o2xE\lib\site-packages\django\db\models\base.py", line 895, in _save_table
    results = self._do_insert(cls._base_manager, using, fields, returning_fields, raw)
  File "C:\Users\indianLeo\.virtualenvs\whois_app-4Kx6o2xE\lib\site-packages\django\db\models\base.py", line 933, in _do_insert
    return manager._insert(
  File "C:\Users\indianLeo\.virtualenvs\whois_app-4Kx6o2xE\lib\site-packages\django\db\models\manager.py", line 85, in manager_method
    return getattr(self.get_queryset(), name)(*args, **kwargs)
  File "C:\Users\indianLeo\.virtualenvs\whois_app-4Kx6o2xE\lib\site-packages\django\db\models\query.py", line 1254, in _insert
    return query.get_compiler(using=using).execute_sql(returning_fields)
  File "C:\Users\indianLeo\.virtualenvs\whois_app-4Kx6o2xE\lib\site-packages\django\db\models\sql\compiler.py", line 1396, in execute_sql
    for sql, params in self.as_sql():
  File "C:\Users\indianLeo\.virtualenvs\whois_app-4Kx6o2xE\lib\site-packages\django\db\models\sql\compiler.py", line 1339, in as_sql
    value_rows = [
  File "C:\Users\indianLeo\.virtualenvs\whois_app-4Kx6o2xE\lib\site-packages\django\db\models\sql\compiler.py", line 1340, in <listcomp>
    [self.prepare_value(field, self.pre_save_val(field, obj)) for field in fields]
  File "C:\Users\indianLeo\.virtualenvs\whois_app-4Kx6o2xE\lib\site-packages\django\db\models\sql\compiler.py", line 1340, in <listcomp>
    [self.prepare_value(field, self.pre_save_val(field, obj)) for field in fields]
  File "C:\Users\indianLeo\.virtualenvs\whois_app-4Kx6o2xE\lib\site-packages\django\db\models\sql\compiler.py", line 1281, in prepare_value
    value = field.get_db_prep_save(value, connection=self.connection)
  File "C:\Users\indianLeo\.virtualenvs\whois_app-4Kx6o2xE\lib\site-packages\django\db\models\fields\__init__.py", line 823, in get_db_prep_save
    return self.get_db_prep_value(value, connection=connection, prepared=False)
  File "C:\Users\indianLeo\.virtualenvs\whois_app-4Kx6o2xE\lib\site-packages\django\db\models\fields\__init__.py", line 1222, in get_db_prep_value
    value = self.get_prep_value(value)
  File "C:\Users\indianLeo\.virtualenvs\whois_app-4Kx6o2xE\lib\site-packages\django\db\models\fields\__init__.py", line 1217, in get_prep_value
    return self.to_python(value)
  File "C:\Users\indianLeo\.virtualenvs\whois_app-4Kx6o2xE\lib\site-packages\django\db\models\fields\__init__.py", line 1179, in to_python
    parsed = parse_date(value)
  File "C:\Users\indianLeo\.virtualenvs\whois_app-4Kx6o2xE\lib\site-packages\django\utils\dateparse.py", line 75, in parse_date
    match = date_re.match(value)
TypeError: expected string or bytes-like object

---

我不能在自己的环境中复制这个确切的错误，但我倾向于它与数据库引擎有关。我在过去的数据库以及json请求/响应中也看到过类似的错误

要理解

TypeError:expected string或bytes like object

，它基本上告诉您，如果您熟悉的话，它正在查找类似于

json.dumps（）

输出结果的内容。在本例中，它获取了一个datetime.datetime对象，但通过回溯的外观，它不知道如何处理它

尝试使用此方法，如果不起作用，请确保可以使用本节中讨论的其他方法将该类型强制转换为str（）：

date=str（datetime.datetime.now（））

date=date（）

也许吧？如果没有代码的其余部分，很难判断。请包含完整的错误/堆栈跟踪，以便人们能够理解代码中错误的来源。什么是

Search

？Search是@JohnGordon模型。我已经添加了回溯以及表单和views@markwalker_The问题在于

“创建日期”：[“1997-11-11 05:00:00”，“1997-11-10 21:00:00-08:00”，“到期日”：[“2021-11-10 05:00:00”，“2021-11-09 00:00-08:00”]，

class SearchForm(forms.ModelForm):
    class Meta:
        model = Search
        fields = '__all__'
        exclude = ('date', 'user', 'city', 'state', 'country', 'zipcode', 'expiration_date', 'creation_date', 'org')