我正在使用 django 构建博客。
我的文章模型包含一个显示发布日期的字段:
publish = models.DateTimeField(default = timezone.now)
和一个 get_absolute_url 函数:
def get_absolute_url(self):
return reverse('article:post_detail',
args = [self.publish.year,
self.publish.strftime('%m'),
self.publish.strftime('%d'),
self.slug])
这是我显示文章的 View :
def post_detail(request, year, month, day, post):
post = get_object_or_404(Article, slug = post,
status = 'published',
publish__year = year,
publish__month = month,
publish__day = day)
return render(request, 'post.html', {'post': post})
这是我在博客项目中的网址:
url(r'^article/', include('article.urls', namespace = 'article',app_name = 'article')),
以及项目内文章app的url:
url(r'^(?P<year>\d{4})/(?P<month>\d{2})/(?P<day>\d{2})/(?P<post>[-\w]+)/$',views.post_detail, name = 'post_detail'),
我的预期结果是这样的:当 url 是 article 是 /article/2016/04/18/first-article/ 时，它将首先显示在特定日期发布的文章，并带有 slug -文章，而是显示:
No article matches the given query.
当我使用python manage.py shell 尝试时，我发现问题似乎与发布字段中的月份和日期有关:
>>> Article.objects.get(pk=1).get_absolute_url()
u'/article/2016/04/18/first-article/'
>>> Article.objects.get(pk=1).publish.year
2016
>>> Article.objects.get(pk=1).publish.month
4
>>> Article.objects.get(pk=1).publish.day
18
但是当我搜索这篇文章时:
>>> from django.shortcuts import get_object_or_404
>>> get_object_or_404(Article, publish__year='2016')
<Article: This is the first article>
>>> get_object_or_404(Article, publish__year='2016', slug='first-article', status='published')
<Article: This is the first article>
>>> get_object_or_404(Article, publish__year='2016', publish__month='04')
Traceback (most recent call last):
File "<console>", line 1, in <module>
File "/media/psf/Home/Porject/env/my_blog_new/lib/python2.7/site-packages/django/shortcuts.py", line 157, in get_object_or_404
raise Http404('No %s matches the given query.' % queryset.model._meta.object_name)
Http404: No Article matches the given query.
>>> get_object_or_404(Article, publish__year='2016', publish__day='18')
Traceback (most recent call last):
File "<console>", line 1, in <module>
File "/media/psf/Home/Porject/env/my_blog_new/lib/python2.7/site-packages/django/shortcuts.py", line 157, in get_object_or_404
raise Http404('No %s matches the given query.' % queryset.model._meta.object_name)
Http404: No Article matches the given query.
似乎与月份和日期相关的任何内容都不起作用，但我无法弄清楚原因。
是mysql处理datetime字段的bug？ 我在这个问题上坚持了好几天，感谢任何意见和提示。提前谢谢你。
请您参考如下方法:
