我目前正在使用 django 2.1 制作一个简单的获取/发布 api。在我运行服务器并转到 .../article/url 后，它返回一个错误
init() takes 1 positional argument but 2 were given
追溯:
Environment:
Request Method: GET
Request URL: http://127.0.0.1:8000/article/
Django Version: 2.1
Python Version: 3.6.5
Installed Applications:
['django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
'rest_framework',
'api.apps.ApiConfig']
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']
Traceback:
File "C:\Users\admin\Miniconda3\lib\site-packages\django-2.1-py3.6.egg\django\core\handlers\exception.py" in inner
34. response = get_response(request)
File "C:\Users\admin\Miniconda3\lib\site-packages\django-2.1-py3.6.egg\django\core\handlers\base.py" in _get_response
126. response = self.process_exception_by_middleware(e, request)
File "C:\Users\admin\Miniconda3\lib\site-packages\django-2.1-py3.6.egg\django\core\handlers\base.py" in _get_response
124. response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "C:\Users\admin\Miniconda3\lib\site-packages\django-2.1-py3.6.egg\django\views\decorators\csrf.py" in wrapped_view
54. return view_func(*args, **kwargs)
File "C:\Users\admin\Miniconda3\lib\site-packages\django-2.1-py3.6.egg\django\views\generic\base.py" in view
68. return self.dispatch(request, *args, **kwargs)
File "C:\Users\admin\Miniconda3\lib\site-packages\rest_framework\views.py" in dispatch
483. response = self.handle_exception(exc)
File "C:\Users\admin\Miniconda3\lib\site-packages\rest_framework\views.py" in handle_exception
443. self.raise_uncaught_exception(exc)
File "C:\Users\admin\Miniconda3\lib\site-packages\rest_framework\views.py" in dispatch
480. response = handler(request, *args, **kwargs)
File "C:\Users\admin\Desktop\crawler\api\views.py" in get
13. article_serializer = ArticleSerializer(article, many=True)
Exception Type: TypeError at /article/
Exception Value: __init__() takes 1 positional argument but 2 were given
我的模型.py
from django.db import models
# Create your models here.
class Article(models.Model):
class Meta:
verbose_name_plural = "Article"
verbose_name = "Article"
id = models.ForeignKey('ArticlePicture', on_delete=models.CASCADE,primary_key=True)
type = models.CharField(max_length=256, null=True)
name = models.CharField(max_length=256, null=True)
title = models.CharField(max_length=256, null=True)
address = models.TextField(null=True)
city = models.CharField(max_length=256, null=True)
price = models.CharField(max_length=256,null=True)
area = models.CharField(max_length=256,null=True)
description = models.TextField(null=True)
sell_date = models.TextField(null=True)
expired_date = models.TextField(null=True)
website = models.ForeignKey('Website', on_delete=models.CASCADE,default=1)
website_uuid = models.CharField(max_length=256, null=True)
seller_name = models.CharField(max_length=256, null=True)
seller_address = models.CharField(max_length=256, null=True)
seller_phone = models.CharField(max_length=256, null=True)
seller_mobile = models.CharField(max_length=256, null=True)
seller_email = models.CharField(max_length=256, null=True)
seller_picture = models.TextField(null=True)
project_name = models.CharField(max_length=256,null=True)
project_investor = models.CharField(max_length=256,null=True)
extended_data = models.TextField(null=True)
def __str__(self):
return self.id
class Website(models.Model):
class Meta:
verbose_name_plural = "Website"
verbose_name = "Website"
id = models.AutoField(primary_key=True)
name = models.CharField(max_length=256,null=True)
url = models.TextField(null=True)
def __str__(self):
return self.id
class ArticlePicture(models.Model):
class Meta:
verbose_name_plural = "ArticlePicture"
verbose_name = "ArticlePicture"
id = models.AutoField(primary_key=True)
article_id = models.ForeignKey(Article, on_delete=models.CASCADE)
url = models.TextField(null=True)
def __str__(self):
return self.id
VIEWS.PY:
from rest_framework import serializers
from rest_framework import serializers, viewsets, status
from rest_framework.response import Response
from django.contrib import admin, auth
from .serializers import ArticleSerializers, ArticlePictureSerializers
from .models import Article, ArticlePicture
from rest_framework.views import APIView
from django.http import Http404
from django.shortcuts import render
class ArticleSerializer(APIView):
def get(self, request):
article = Article.objects.all()
article_serializer = ArticleSerializer(article, many=True)
return Response(article_serializer.data)
def post(self, request):
article_serializers = ArticleSerializer(data = request.data)
if article_serializers.is_valid():
article_serializers.save()
return Response(article_serializers.data, status=status.HTTP_201_CREATED)
return Response(article_serializers.errors, status=status.HTTP_400_BAD_REQUEST)
class ArticlePictureSerializer(APIView):
def get(self, request):
article_picture = ArticlePicture.objects.all()
article_picture_serializer = ArticlePictureSerializers(article, many=True)
return Response(article_picture_serializer.data)
def post(self, request):
article_picture_serializers = ArticlePictureSerializers(data = request.data)
if article_picture_serializers.is_valid():
article_picture_serializers.save()
return Response(article_picture_serializers.data, status=status.HTTP_201_CREATED)
return Response(article_picture_serializers.errors, status=status.HTTP_400_BAD_REQUEST)
序列化器.PY:
from rest_framework import serializers
from .models import Article, ArticlePicture
class ArticleSerializers(serializers.ModelSerializer):
class Meta:
model = Article
fields = '__all__'
class ArticlePictureSerializers(serializers.ModelSerializer):
class Meta:
model = ArticlePicture
fields = '__all__'
和我的 URLS.PY:
from django.contrib import admin
from django.urls import path
from django.conf.urls import url, include
from api import views
from rest_framework.urlpatterns import format_suffix_patterns
from rest_framework import routers
urlpatterns = [
path('admin/', admin.site.urls),
path('article/',views.ArticleSerializer.as_view()),
path('articlepic/',views.ArticlePictureSerializer.as_view()),
]
urlpatterns = format_suffix_patterns(urlpatterns)
我在路径之后添加了 .as_view() 并且它仍然返回，我仍在尝试弄清楚我做错了什么。
请您参考如下方法:
你有相同的 View 和序列化器名称，尝试重命名 View 类，例如:
VIEWS.PY:
...
class ArticleAPI(APIView):
def get(self, request):
article = Article.objects.all()
article_serializer = ArticleSerializer(article, many=True)
...
