我正在尝试将一些 python 文件从 Django 1.3 更新到 Django 1.11。在 views.py 文件中，我有一个包含以下行的方法
return object_list(request, queryset=results['flips'], extra_context=context, **kwargs)
我读到 object_list 现在已被弃用，我必须使用 django.views.generic.list 中的 ListView 并使用类 View 来代替它。
我试过这个:
Django 1.3
views.py
def flow(request, **kwargs):
agent = 'default'
lang = request.LANGUAGE_CODE.lower()
cache_key = '%s%s%s' % (request.build_absolute_uri(), request.user.id, lang)
results = cache.get(cache_key)
if results is None:
results = {}
flips = pushitem.visibles.visibles().by_lang(lang=lang)
sort = request.GET.get('sort', '')
if sort == 'popular':
flips = flips.order_by('-votes_total')
else:
flips = flips.order_by('-timestamp')
scope = request.GET.get('scope', '')
if scope:
today = datetime.now()
if scope == 'day':
flips = flips.filter(timestamp__year=today.year, timestamp__month=today.month, timestamp__day=today.day)
if scope == 'month':
flips = flips.filter(timestamp__year=today.year, timestamp__month=today.month)
if scope == 'year':
flips = flips.filter(timestamp__year=today.year)
#Todo use UserProfile instead of User for people and add a searchfield to UserProfile (faster)
query = request.GET.get('q', '')
if query:
people = User.objects.filter(Q(username__contains=query))
people |= User.objects.filter(Q(first_name__contains=query))
people |= User.objects.filter(Q(last_name__contains=query))
flips = flips.filter(Q(searchfield__contains=query))
topics = Tag.objects.filter(Q(name__contains=unidecode(query.lower())))
results['people'] = people
results['topics'] = topics
results['flips'] = flips
cache.set(cache_key, results)
context = {
'title': _('Flipter.com, Ask everything!'),
'description': _('The world\'s largest community of opinions, made with awesome polls.')
}
if results.has_key('people'):
context['people'] = results['people']
if results.has_key('topics'):
context['topics'] = results['topics']
return object_list(request, queryset=results['flips'], extra_context=context, **kwargs)
urls.py
url(r'^$', flow, dict(template_name='flow.html', paginate_by=12,), name='flow'),
Django 1.11
views.py 翻转 View 类( ListView ): 分页依据 = 12 template_name = 'flow.html'
def flow(request, **kwargs):
agent = 'default'
lang = LANGUAGE_CODE.lower()
cache_key = '%s%s%s' % (request.build_absolute_uri(), request.user.id, lang)
results = cache.get(cache_key)
if results is None:
results = {}
flips = pushitem.visibles.visibles()
sort = request.GET.get('sort', '')
if sort == 'popular':
flips = flips.order_by('-votes_total')
else:
flips = flips.order_by('-timestamp')
scope = request.GET.get('scope', '')
if scope:
today = datetime.now()
if scope == 'day':
flips = flips.filter(timestamp__year=today.year, timestamp__month=today.month, timestamp__day=today.day)
if scope == 'month':
flips = flips.filter(timestamp__year=today.year, timestamp__month=today.month)
if scope == 'year':
flips = flips.filter(timestamp__year=today.year)
#Todo use UserProfile instead of User for people and add a searchfield to UserProfile (faster)
query = request.GET.get('q', '')
if query:
people = User.objects.filter(Q(username__contains=query))
people |= User.objects.filter(Q(first_name__contains=query))
people |= User.objects.filter(Q(last_name__contains=query))
flips = flips.filter(Q(searchfield__contains=query))
topics = Tag.objects.filter(Q(name__contains=unidecode(query.lower())))
results['people'] = people
results['topics'] = topics
results['flips'] = flips
cache.set(cache_key, results)
context = {
'title': _('Flipter.com, Ask everything!'),
'description': _('The world\'s largest community of opinions, made with awesome polls.')
}
if 'people' in results:
context['people'] = results['people']
if 'topics' in results:
context['topics'] = results['topics']
return FlipView(queryset=results['flips'], extra_context=context)
urls.py
url(r'^$', views.flow, name='flow'),
但是当我尝试进入该页面时出现以下错误:
'FlipView' object has no attribute 'kwargs'
或
'FlipView' object has no attribute 'status_code'
完整的错误描述:
Environment:
Request Method: GET
Request URL: http://127.0.0.1:8000/
Django Version: 1.11.3
Python Version: 3.6.2
Installed Applications:
['django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.sites',
'django.contrib.sitemaps',
'django.contrib.staticfiles',
'django.contrib.flatpages',
'django_countries',
'django_extensions',
'django_comments',
'sparkty_app',
'widget_tweaks',
'compressor',
'tagging',
'easy_thumbnails',
'social_django',
'registration']
Installed Middleware:
['django.middleware.security.SecurityMiddleware',
'django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.common.CommonMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware',
'django.middleware.clickjacking.XFrameOptionsMiddleware',
'social_django.middleware.SocialAuthExceptionMiddleware',
'django.contrib.flatpages.middleware.FlatpageFallbackMiddleware']
Traceback:
File "C:\Users\darth\AppData\Local\conda\conda\envs\SparktyEnv\lib\site-packages\django\core\handlers\exception.py" in inner
41. response = get_response(request)
File "C:\Users\darth\AppData\Local\conda\conda\envs\SparktyEnv\lib\site-packages\django\utils\deprecation.py" in __call__
142. response = self.process_response(request, response)
File "C:\Users\darth\AppData\Local\conda\conda\envs\SparktyEnv\lib\site-packages\django\middleware\clickjacking.py" in process_response
32. if response.get('X-Frame-Options') is not None:
File "C:\Users\darth\AppData\Local\conda\conda\envs\SparktyEnv\lib\site-packages\django\views\generic\list.py" in get
175. context = self.get_context_data()
File "C:\Users\darth\AppData\Local\conda\conda\envs\SparktyEnv\lib\site-packages\django\views\generic\list.py" in get_context_data
135. paginator, page, queryset, is_paginated = self.paginate_queryset(queryset, page_size)
File "C:\Users\darth\AppData\Local\conda\conda\envs\SparktyEnv\lib\site-packages\django\views\generic\list.py" in paginate_queryset
70. page = self.kwargs.get(page_kwarg) or self.request.GET.get(page_kwarg) or 1
Exception Type: AttributeError at /
Exception Value: 'FlipView' object has no attribute 'kwargs'
请您参考如下方法:
class FlowListView(ListView):
model = Flow # Unsure of this one, probably don't even need it.
def get_queryset(self):
results = cache.get(cache_key)
if results is None:
results = {}
flips = pushitem.visibles.visibles()
sort = request.GET.get('sort', '')
if sort == 'popular':
flips = flips.order_by('-votes_total')
else:
flips = flips.order_by('-timestamp')
scope = request.GET.get('scope', '')
if scope:
today = datetime.now()
if scope == 'day':
flips = flips.filter(timestamp__year=today.year, timestamp__month=today.month, timestamp__day=today.day)
if scope == 'month':
flips = flips.filter(timestamp__year=today.year, timestamp__month=today.month)
if scope == 'year':
flips = flips.filter(timestamp__year=today.year)
# Todo use UserProfile instead of User for people and add a searchfield to UserProfile (faster)
query = request.GET.get('q', '')
if query:
people = User.objects.filter(Q(username__contains=query))
people |= User.objects.filter(Q(first_name__contains=query))
people |= User.objects.filter(Q(last_name__contains=query))
flips = flips.filter(Q(searchfield__contains=query))
topics = Tag.objects.filter(Q(name__contains=unidecode(query.lower())))
results['people'] = people
results['topics'] = topics
results['flips'] = flips
cache.set(cache_key, results)
return results
def get_context_data(self, **kwargs):
context = super(FlowListView, self).get_context_data(**kwargs)
context['title'] = _('Flipter.com, Ask everything!')
context['description'] = _('The world\'s largest community of opinions, made with awesome polls.')
# This is something you'll have to do a bit differently, unsure if it will work
results = kwargs['object_list']
if 'people' in results:
context['people'] = results['people']
if 'topics' in results:
context['topics'] = results['topics']
return context
urls.py
urlpatterns = [
url(r'^$', FlowListView.as_view(), name='flow-list'),
]
