我開始使用Django構建的項目,我無法弄清楚什麼。Django:make_aware期待一個天真的日期時間
我在settings.py:
TIME_ZONE = 'UTC'
USE_I18N = True
USE_L10N = True
USE_TZ = True
在我的models.py,我有日期字段是這樣的:
#...
date = models.DateTimeField(default=timezone.now)
created_at = models.DateTimeField(auto_now_add=True)
updated_at = models.DateTimeField(auto_now=True)
#...
而且我的網址都是這樣在urls.py定義:
urlpatterns = patterns(
'',
url(r'^api/catalog/', include('catalog.urls')),
url(r'^api/logs/', include('logs.urls')),
url(r'^admin/', include(admin.site.urls)),
)
而在目錄/ urls.py:
router = DefaultRouter(trailing_slash=False)
router.register(r'users', UserViewSet)
# ...
projects_router = NestedSimpleRouter(router, r'projects', lookup='project', trailing_slash=False)
projects_router.register(r'requests', ProjectRequestViewSet, base_name='project-requests')
# ...
requests_router = NestedSimpleRouter(router, r'requests', lookup='request', trailing_slash=False)
requests_router.register(r'statuses', RequestStatusViewSet, base_name='request-statuses')
# ...
urlpatterns = [
url(r'^', include(router.urls)),
url(r'^', include(projects_router.urls)),
url(r'^', include(requests_router.urls)),
url(r'^auth/', include('rest_framework.urls', namespace='rest_framework')),
url(r'^token-auth', views.obtain_auth_token),
]
既然我已經更新到1.9.1 Django的,我有以下警告:
.\env\lib\site-packages\django\template\utils.py:37:
RemovedInDjango110Warning: You haven't defined a TEMPLATES setting. You must do so before upgrading to Django 1.10. Otherwise Django will be unable to load templates. "unable to load templates.", RemovedInDjango110Warning)
.\balrog\urls.py:8: RemovedInDjango110Warning:
django.conf.urls.patterns() is deprecated and will be removed in Django 1.10. Update your urlpatterns to be a list of django.conf.urls.url() instances instead. url(r'^admin/', include(admin.site.urls)),
(這不是這個問題的要點,但任何幫助去除這些警告也表示讚賞。 )
每當我試圖得到一個對象與API的日期字段,我得到以下錯誤:
ValueError: make_aware expects a naive datetime, got 2016-01-15 17:18:44.258843+00:00
所以不會發生,如果這個錯誤設置爲False
但這並不理想,我需要它是True
。
另一種方法消除這種誤差是編輯.\env\Lib\site-packages\django\utils\timezone.py
並更改該make_aware功能:
def make_aware(value, timezone=None, is_dst=None):
"""
Makes a naive datetime.datetime in a given time zone aware.
"""
if timezone is None:
timezone = get_current_timezone()
if hasattr(timezone, 'localize'):
# This method is available for pytz time zones.
return timezone.localize(value, is_dst=is_dst)
else:
# Check that we won't overwrite the timezone of an aware datetime.
if is_aware(value):
raise ValueError(
"make_aware expects a naive datetime, got %s" % value)
# This may be wrong around DST changes!
return value.replace(tzinfo=timezone)
要這樣:
def make_aware(value, timezone=None, is_dst=None):
"""
Makes a naive datetime.datetime in a given time zone aware.
"""
if timezone is None:
timezone = get_current_timezone()
if hasattr(timezone, 'localize'):
# This method is available for pytz time zones.
return timezone.localize(value, is_dst=is_dst)
else:
return value
但是,這並不理想都不是。
爲什麼我的make_aware函數甚至被調用,因爲日期應該已經知道並且不是天真USE_TZ
設置爲True
?
順便說一句,我使用的是在這的有關情況SQLite數據庫(因爲sqlite的使用日期字段作爲字符串據我所知)