小编Ala*_*air的帖子

我知道根据文档,以下字段不采取allow_blank=True和allow_null=True

BooleanField()
IntegerField()

我需要允许客户端不指定g或d(如下所示)并将值存储在DB中None.

g = serializers.BooleanField()
d = serializers.IntegerField()

有任何想法吗 ？

当我尝试运行此测试时：

from django.test import TestCase
from django.core.urlresolvers import reverse
from django.test import Client

class StatisticTest(TestCase):
    def setUp(self):
        self.client = Client()

    def test_schedule_view(self):
        url = reverse('schedule')
        response = self.client.get(url)
        self.assertEqual(response.status_code, 200)
        self.assertTemplateUsed(response, 'schedule.html')

我得到AssertionError：没有用于呈现响应的模板。

我的看法是：

class Schedule(View):
    def get(self, request):
        games = add_team_info(query.get_current_schedule())
        if games is not []:
             available_schedules = generate_schedule_list(games[0]["season_type"], games[0]["week"])
             is_available = True
        else:
             available_schedules = []
             is_available = False
        return render_to_response("schedule.html", 
                              {"games": games, "available_schedules": available_schedules, "is_available": is_available})

和urls.py：

url(r'^schedule/$', views.Schedule.as_view(), name='schedule'),

在模型形式中,我可以覆盖表单字段

class waypointForm(forms.ModelForm):
    def __init__(self, user, *args, **kwargs):
        super(waypointForm, self).__init__(*args, **kwargs)
        self.fields['waypoints'] = forms.ModelChoiceField(queryset=Waypoint.objects.filter(user=user))

如何在基于类的视图中使用相同的功能CreateView,以便我可以覆盖表单字段？

我试过get_form_kwargs和get_form,但一切都是徒劳.我需要创建一个模型表单吗？

我想在我的系统中实现用户.我知道Django已经有了一个身份验证系统,我一直在阅读文档.但我不知道它们之间的区别

from django.contrib.auth.models import User 
class Profile(User):
    # others fields

和

from django.contrib.auth.models import User 
class Profile(models.Model):
    user = models.OneToOneField(User)
    # others fields 

我不想知道为什么要使用这一个或另一个,但是在引擎盖下会发生什么.有什么不同？

我正在尝试设置Django API(POST API端点).我希望有相同的URL路径指向同一个处理不同的函数,因为它是POST或GET.因此,我使用了这样的方法

def handle_post(request):

    dict = {}
    dict['email'] = "test"

    if request.method == "POST":
        return HttpResponse(json.dumps(dict), content_type="application/json")

在url.py中,我有以下代码

router = routers.DefaultRouter()
router.register(r'notes', UsernotesViewSet)
urlpatterns = patterns('',
url(r'^', include(router.urls)),
url(r'^admin/', include(admin_site.urls)),
url(r'^api-auth/', include('rest_framework.urls', namespace='rest_framework')),
url(r'^docs/', include('rest_framework_swagger.urls')),
url(r'^example/postrequest', handle_post),
)

但是当我在URL http://127.0.0.1:8000/example/postrequest?requestid=abc&starthour=10上执行POST时,我无法完成这项工作 .我没有发布任何内容,只是在httpclient上将方法从GET更改为POST以尝试此API.如果我没有将任何内容发布到URL,这样可以吗？

我收到403错误,如下所示:

禁止(403)
CSRF验证失败.请求中止.
您看到此消息是因为此站点在提交表单时需要CSRF cookie.出于安全原因,需要此cookie,以确保您的浏览器不会被第三方劫持.如果您已将浏览器配置为禁用cookie,请重新启用它们,至少对于此站点或"同源"请求.

感谢任何帮助.

我正在尝试向我的base.html添加一个haystack搜索,以便在我的网站上全局包含它.当我提交搜索时,它会出错

我正进入(状态:

Django-Haystack:'NoneType'对象没有属性'_default_manager'

我已将其添加到INSTALLED_APPS和我的urls.py. ./manage.py rebuild_index运行正常.

models.py:

class Site(models.Model):
    site_name = models.CharField(max_length=100, blank=False, null=False)
    site_manager = models.CharField(max_length=100, blank=False, null=False)
    address_1 = models.CharField(max_length=100, blank=False, null=False)
    address_2 = models.CharField(max_length=100, blank=True, null=True)
    address_3 = models.CharField(max_length=100, blank=True, null=True)
    town_city = models.CharField(max_length=100, verbose_name='Town/City')
    county = models.CharField(max_length=100, blank=False, null=False)
    postcode = models.CharField(max_length=100, blank=False, null=False)
    region = models.CharField(max_length=100, blank=True, null=True)
    tel = models.CharField(max_length=100, blank=False, null=False)
    email = models.EmailField(max_length=100, blank=False, null=False)

    creation = models.DateField(auto_now_add=True)
    last_modified = models.DateField(auto_now=True)

    def __unicode__(self):
        return self.site_name

SiteIndex.py:

class SiteIndex(indexes.SearchIndex, indexes.Indexable):
    text = indexes.CharField(document=True, …

我正在尝试使用__init__参数将变量传递给 ModelForm clean 方法，但到目前为止还没有成功 - 我查看了 StackOverflow 上的各种帖子，但似乎没有一个有帮助。

我的代码如下：

forms.py

class property_booking_form(forms.ModelForm):
    check_in_date = forms.DateField(widget=SelectDateWidget)
    check_out_date = forms.DateField(widget=SelectDateWidget)

    class Meta:
        model = Properties_bookings
        fields = ['check_in_date', 'check_out_date']

    def __init__(self, property_id):
        self.property_id = property_id
        super(property_booking_form, self).__init__(self, property_id)

    def clean(self):
        check_in_date = self.cleaned_data.get('check_in_date')
        check_out_date = self.cleaned_data.get('check_out_date')
        property_min_nights = Properties.objects.get(id=self.property_id).property_minimum_nights
        ...

views.py

def view(request):
    ...
    if request.method == 'POST':
        booking_form = property_booking_form(request.POST, property_id=property_id)
        if booking_form.is_valid():
            ...
    else:
        booking_form = property_booking_form(property_id=property_id)
    return render(...)

这会引发以下错误：“property_booking_form”对象没有属性“get”

根据错误描述，这似乎与小部件有关：

异常位置：

/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/django/forms/widgets.py in value_from_datadict, line 1058

该表单在没有覆盖的情况下工作正常 …

我已经阅读了每一篇文章，并在过去的 4 个小时里用谷歌搜索，试图找到解决这个错误的方法。

我没有运行虚拟环境，该服务器仅用于 django。
服务器：Ubuntu 16.04
蟒蛇：3.5.2

我收到此错误

django.core.exceptions.ImproperlyConfigured: Error loading MySQLdb module.
Did you install mysqlclient?

尝试安装 mysqlclient

sudo -H pip3 install mysqlclient
Requirement already satisfied: mysqlclient in /usr/local/lib/python3.5/dist-packages (1.3.12)

使用 ubuntu

sudo apt-get install -y python3-mysqldb
Reading package lists... Done
Building dependency tree
Reading state information... Done
python3-mysqldb is already the newest version (1.3.7-1build2).
0 upgraded, 0 newly installed, 0 to remove and 3 not upgraded.

任何帮助是极大的赞赏

我收到这些错误

不支持在 include() 中指定命名空间而不提供 app_name。在包含的模块中设置 app_name 属性，或者传递包含模式列表和 app_name 的 2 元组。

我的代码如下所示

项目名称.urls

from django.contrib import admin
from django.urls import path,include

urlpatterns = [
    path('admin/', admin.site.urls),
    path('',include('learning.urls',namespace='learning')),
  ]

应用程序名称.url

from django.urls import path
from learning.views import SendEmail

urlpatterns = [
   path('',SendEmail.as_view(),name='home')
]

我正在尝试访问我的项目（本地），并且收到此回溯：

追溯

Page not found (404)
Request Method:
GET
Request URL:
http://127.0.0.1:8000/account/login/
Using the URLconf defined in tutorial.urls, Django tried these URL patterns, in this order: 
[name='login_redirect'] 
admin/ 
account/ ^$ 
account/ ^login$ 
account/ ^logout$ 
account/ ^register$ [name='register'] 
account/ ^profile$ [name='view_profile'] 
account/ ^profile/edit$ [name='edit_profile'] 
account/ ^change-password$ [name='change_password'] 
account/ ^reset-password$ [name='reset_password'] 
account/ ^reset-password/done$ [name='password_reset_done'] 
account/ ^reset-password/confirm(?P<uidb64>[0-9A-Za-z_\-]+)/(?P<token>[0-9A- Za-z]{1,13}-[0-9A-Za-z]{1,23})/$ [name='password_reset_confirm'] 
account/ ^reset-password/complete$ [name='password_reset_complete'] 
The current path, account/login/, didn't match any of these. 

主/urls.py

from django.contrib import admin
from django.urls import path, re_path, include
from …