如何解决Django REST API URL 中的 ID 参数
我有两个模型:
我想创建一个端点,如:
{GET} /article/97/comments # get all comments of article (id:97)
{POST} /article/97/comments # create an comment for article (id=97)
但我想使用 GenericViewSet 或 ModelMixins。
你能指导我吗,我该怎么做?
谢谢。
解决方法
使用嵌套路由非常简单:
定义您的文章模型 (models/article.py
):
class Article(models.Model):
name = models.CharField(max_length=100,blank=False,null=False,default='')
...
定义您的评论模型 (models/comment.py
):
class Comment(models.Model):
content = models.CharField(max_length=100,default='')
article = models.ForeignKey(Article,related_name='comments',on_delete=models.CASCADE,blank=True,null=True)
...
定义您的文章视图 (views/article.py
):
class ArticleAPIView(viewsets.ModelViewSet):
serializer_class = ArticleSerializer
....
定义您的评论视图 (views/comment.py
):
class CommentAPIView(viewsets.ModelViewSet):
serializer_class = CommentSerializer
...
定义您的路线 (urls.py
):
from django.urls import path
from app.domain.api import views
from rest_framework_extensions.routers import ExtendedSimpleRouter
urlpatterns: list = []
router: ExtendedSimpleRouter = ExtendedSimpleRouter()
articles_router = router.register('articles',views.ArticleAPIView,basename='articles')
articles_router.register(
'comments',views.CommentAPIView,basename='comments',parents_query_lookups=['article']
)
urlpatterns += router.urls
您将获得以下文章的路线:
{GET} /articles/ -> Get list
{GET} /articles/{id}/ -> Get by id
{POST} /articles/ -> Create
{PUT} /articles/{id}/ -> Update
{PATCH} /articles/{id}/ -> Partial update
{DELETE} /articles/{id}/ -> Delete
最后,您将获得以下评论的路线:
{GET} /articles/{parent_lookup_article}/comments/ -> Get list
{GET} /articles/{parent_lookup_article}/comments/{id}/ -> Get by id
{POST} /articles/{parent_lookup_article}/comments/ -> Create
{PUT} /articles/{parent_lookup_article}/comments/{id}/ -> Update
{PATCH} /articles/{parent_lookup_article}/comments/{id}/ -> Partial update
{DELETE} /articles/{parent_lookup_article}/comments/{id}/ -> Delete
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