使用Django Rest框架的ModelViewSet类APIView渲染表单 [英] Rendering a form with django rest framework's ModelViewSet class insead of APIView
问题描述
我想使用其余框架为django模型创建样板表格。
I want to create boiler-plate forms for my django models using the rest framework.
文档使用APIView进行显示： http://www.django-rest-framework.org/topics/html-and-forms/#rendering-forms 。
Documentation shows it using the APIView: http://www.django-rest-framework.org/topics/html-and-forms/#rendering-forms.
但是我想使用ModelViewSet以避免定义自定义操作方法。
But I want to use the ModelViewSet in order to avoid defining custom action methods.
这可能吗？你可以分享一个例子吗？
Is this possible? Can you share an example?
这是我尝试过的。我的模型：
Here is what I tried. My model:
class Person(AbstractUser):
pass
我的序列化器：
class PersonSerializer(serializers.HyperlinkedModelSerializer):
class Meta:
model = Person
fields = ('first_name', 'last_name', 'email', 'groups')
我的视图：
class PersonViewSet(viewsets.ModelViewSet):
"""
API endpoint that allows persons to be viewed or edited.
"""
queryset = Person.objects.all().order_by('-date_joined')
serializer_class = PersonSerializer
renderer_classes = [TemplateHTMLRenderer]
template_name = 'common/rest_create.html'
这是我的网址：
url(r'person_create_api/$', PersonViewSet.as_view({'get': 'create'}), name='person-create-api'),
我得到的错误是：
IntegrityError at /school/person_create_api/
duplicate key value violates unique constraint "school_person_username_key"
DETAIL: Key (username)=() already exists.
当我将 username 字段添加到序列化程序字段，我得到：
When I add the username field to the serializer fields, I get:
HTTP/1.0 400 Bad Request
Date: Tue, 20 Sep 2016 17:00:22 GMT
Server: WSGIServer/0.2 CPython/3.5.1+
X-Frame-Options: SAMEORIGIN
Vary: Cookie
Allow: GET, HEAD, OPTIONS
Content-Type: text/html; charset=utf-8
我正在使用django 1.9和最新的DRF 3.4.6。
I am using django 1.9 and latest DRF 3.4.6.
推荐答案
首先，让DRF为您创建网址（这样可以防止错误配置网址）：
First thing first, let the DRF create the url's for you (this prevents misconfiguring the urls):
from rest_framework.routers import DefaultRouter
router = DefaultRouter()
router.register(r'snippets', PersonViewSet)
urlpatterns = [
...
url(r'^', include(router.urls)),
]
以下是生成的网址：
^persons/$ [name='person-list']
^persons\.(?P<format>[a-z0-9]+)/?$ [name='person-list']
^persons/blank_form/$ [name='person-blank-form']
^persons/blank_form\.(?P<format>[a-z0-9]+)/?$ [name='person-blank-form']
^persons/(?P<pk>[^/.]+)/$ [name='person-detail']
^persons/(?P<pk>[^/.]+)\.(?P<format>[a-z0-9]+)/?$ [name='person-detail']
模型为与上面相同，这里是视图：
Model is same as above, and here is the view:
class PersonViewSet(viewsets.ModelViewSet):
"""
API endpoint that allows persons to be viewed or edited.
"""
queryset = Person.objects.all().order_by('-date_joined')
serializer_class = PersonSerializer
template_name = 'common/rest_create.html'
@list_route(renderer_classes=[renderers.TemplateHTMLRenderer])
def blank_form(self, request, *args, **kwargs):
serializer = PersonSerializer()
return Response({'serializer': serializer})
注意，TemplateHtmlRenderer设置为方法级别在类中是全局的，以便让它在其他方法/视图中使用其他适当的渲染器。在DRF网站上欺骗本教程， serializer = PersonSerializer（）用于生成
Note, the TemplateHtmlRenderer is set at the method level instead of globally in the class so to let it use other appropriate renderers for other methods/views. Cheating off the tutorial at DRF site, serializer = PersonSerializer() this is used for generating an unbound form.
这是模板：
{% load rest_framework %}
<html><body>
<h1>New Person</h1>
<form action="{% url 'school:person-create' %}" method="POST">
{% csrf_token %}
{% render_form serializer %}
<input type="submit" value="Save">
</form>
</body></html>
您希望ModelViewSet中的其他视图照常工作。
Other views that you expect from a ModelViewSet work as usual.
这篇关于使用Django Rest框架的ModelViewSet类APIView渲染表单的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
