學習Django內置的基於類的通用視圖出現的錯誤：OverflowError: Python int too large to convert to C long

學習Django內置的基於類的通用視圖出現的錯誤：OverflowError: Python int too large to convert to C long

項目環境：win10 + python 3.7 + django 2.1

books.models部分代碼：

class Book(models.Model):
    title = models.CharField(max_length=100)
    authors = models.ManyToManyField('Author')
    publisher = models.ForeignKey(Publisher, on_delete=models.CASCADE)
    publication_date = models.DateField()

books.views部分代碼：

class PublisherDetail(DetailView):
    model = Publisher

    def get_context_data(self, **kwargs):
        # Call the base implementation first to get a context
        context = super().get_context_data(**kwargs)
        # Add in a QuerySet of all the books
        context['book_list'] = Book.objects.all()
        return context

接下來啓動項目，訪問時出現如下情況：

Traceback (most recent call last):
  File "D:\python\lib\site-packages\django\core\handlers\exception.py", line 34, in inner
    response = get_response(request)
  File "D:\python\lib\site-packages\django\core\handlers\base.py", line 156, in _get_response
    response = self.process_exception_by_middleware(e, request)
  File "D:\python\lib\site-packages\django\core\handlers\base.py", line 154, in _get_response
    response = response.render()
  File "D:\python\lib\site-packages\django\template\response.py", line 106, in render
    self.content = self.rendered_content
  File "D:\python\lib\site-packages\django\template\response.py", line 83, in rendered_content
    content = template.render(context, self._request)
  File "D:\python\lib\site-packages\django\template\backends\django.py", line 61, in render
    return self.template.render(context)
  File "D:\python\lib\site-packages\django\template\base.py", line 171, in render
    return self._render(context)
  File "D:\python\lib\site-packages\django\template\base.py", line 163, in _render
    return self.nodelist.render(context)
  File "D:\python\lib\site-packages\django\template\base.py", line 937, in render
    bit = node.render_annotated(context)
  File "D:\python\lib\site-packages\django\template\base.py", line 904, in render_annotated
    return self.render(context)
  File "D:\python\lib\site-packages\django\template\defaulttags.py", line 166, in render
    len_values = len(values)
  File "D:\python\lib\site-packages\django\db\models\query.py", line 250, in __len__
    self._fetch_all()
  File "D:\python\lib\site-packages\django\db\models\query.py", line 1186, in _fetch_all
    self._result_cache = list(self._iterable_class(self))
  File "D:\python\lib\site-packages\django\db\models\query.py", line 54, in __iter__
    results = compiler.execute_sql(chunked_fetch=self.chunked_fetch, chunk_size=self.chunk_size)
  File "D:\python\lib\site-packages\django\db\models\sql\compiler.py", line 1065, in execute_sql
    cursor.execute(sql, params)
  File "D:\python\lib\site-packages\django\db\backends\utils.py", line 100, in execute
    return super().execute(sql, params)
  File "D:\python\lib\site-packages\django\db\backends\utils.py", line 68, in execute
    return self._execute_with_wrappers(sql, params, many=False, executor=self._execute)
  File "D:\python\lib\site-packages\django\db\backends\utils.py", line 77, in _execute_with_wrappers
    return executor(sql, params, many, context)
  File "D:\python\lib\site-packages\django\db\backends\utils.py", line 85, in _execute
    return self.cursor.execute(sql, params)
  File "D:\python\lib\site-packages\django\db\backends\sqlite3\base.py", line 298, in execute
    return Database.Cursor.execute(self, query, params)
  File "D:\python\lib\sqlite3\dbapi2.py", line 64, in convert_date
    return datetime.date(*map(int, val.split(b"-")))
OverflowError: Python int too large to convert to C long
[21/Aug/2019 19:15:32] "GET /books/publishers/1 HTTP/1.1" 500 140379

折騰了好久都沒找到原因，然後就試着改了model中Book類中的

publication_date = models.DateField()

改爲：

publication_date = models.DateTimeField(auto_now_add=True)

然後將數據庫中的信息更新一下，重新訪問就可以了。