如何在另一个视图中调用DjangoRestFramework的DetailAPIView？

我有一个DRF的DetailAPIView（PlaceDetailAPIView），外部通过浏览器、curl等访问http://localhost:8000/api/place/6873947/可正常返回复杂序列化JSON响应，对应的URL配置为：

path('place/<int:pk>/', views.PlaceDetailAPIView.as_view(), name='place-detail'),

需要在另一个函数视图中调用该APIView，尝试了多种方法均失败：

尝试1：使用rest_framework.test.APIClient #

from rest_framework.test import APIClient
from django.urls import reverse
client = APIClient()
url = '/api/place/6873947/'
res = client.get(url)

结果：返回空响应。

尝试2：使用django.test.Client #

from django.test import Client
c=Client()

尝试两种调用方式：

• res = c.get('/api/place?pk=6873947')
• res = c.get('/api/place/', {'pk': 6873947})
  结果：均报错 as_view() takes 1 positional argument but 2 were given。

尝试3：直接调用视图类 #

from api.views import PlaceDetailAPIView
pid = 6873947
from django.test import Client
from django.http import HttpRequest
from places.models import Place
request = HttpRequest()
request.method='GET'
request.GET = {"pk": pid}

尝试三种调用方式：

• res = PlaceDetailAPIView.as_view({"pk": pid})：报错 as_view() takes 1 positional argument but 2 were given
• res = PlaceDetailAPIView.as_view()(request=request)：报错 Expected view PlaceDetailAPIView to be called with a URL keyword argument named "pk". Fix your URL conf, or set the .lookup_field attribute on the view correctly
• res = PlaceDetailAPIView.as_view()(request=request._request)：报错 HttpRequest' object has no attribute '_request

使用django.test.Client直接调用符合URL配置的路径即可（虽然调用的是DRF APIView，但此方法可行）：

from django.test import Client
client = Client()
result = client.get('/api/place/6873947')
print(result.json())

注：核心问题是之前的请求路径不符合URL配置规则，正确路径需匹配place/<int:pk>/的格式，而非通过查询参数传递pk。

内容的提问来源于stack exchange，提问作者kgeo