Django rest framework Django Rest框架-筛选嵌套序列化程序
一本书可以有许多不同语言的书籍内容。在我的例子中,这本书有两个图书目录,一个是英文的,另一个是中文的 我通过如下指定语言查询集来获取特定语言的书籍及其内容:。当调用这个函数时,它会在views.py中调用BookList get_query,我在其中按语言过滤内容。但是,json结果仍然打印该书的所有BookContent 下面是我的代码 models.pyDjango rest framework Django Rest框架-筛选嵌套序列化程序,django-rest-framework,Django Rest Framework,一本书可以有许多不同语言的书籍内容。在我的例子中,这本书有两个图书目录,一个是英文的,另一个是中文的 我通过如下指定语言查询集来获取特定语言的书籍及其内容:。当调用这个函数时,它会在views.py中调用BookList get_query,我在其中按语言过滤内容。但是,json结果仍然打印该书的所有BookContent 下面是我的代码 models.py class Book(models.Model): id = models.UUIDField(primary_key=True,
class Book(models.Model):
id = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)
title = models.CharField(max_length=255)
class BookContent(models.Model):
id = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)
book = models.ForeignKey(Book, releated_name='content' on_delete=models.CASCADE)
content = models.TextField()
language = models.TextField()
序列化程序.py
class BookContentSerializer(serializers.ModelSerializer):
class Meta:
model = BookContent
fields = ('id', 'content', 'language')
class BookSerializer(serializers.ModelSerializer):
content = BookContentSerializer(many=True, read_only=True)
class Meta:
model = Book
fields = ('id', 'title', 'content')
views.py
class BookList(generics.ListAPIView):
serializer_class = BookSerializer
permission_classes = (permissions.IsAuthenticated,)
def get_queryset(self):
if 'language' in self.request.query_params:
language = self.request.query_params['language']
return Book.objects.filter(content__language=language).distinct().order_by('title')
class BookDetail(generics.RetrieveUpdateDestroyAPIView):
queryset = Book.objects.all()
serializer_class = BookSerializer
permission_classes = (permissions.IsAuthenticated,)
当前Json结果:
{
"results": [
{
"id": "d3e5185a-1b7b-427c-bbe3-030bfa2e3bce",
"title": "My Book Title",
"book_content": [
{
"id": "0fea8027-3ecf-4571-a95f-5a09a93408ec",
"content": "hello content 1",
"language": "english"
},
{
"id": "0fea8027-3ecf-4571-a95f-5a09a93408ed",
"content": "你好",
"language": "chinese"
}
]
}
]
}
{
"results": [
{
"id": "d3e5185a-1b7b-427c-bbe3-030bfa2e3bce",
"title": "My Book Title",
"book_content":
{
"id": "0fea8027-3ecf-4571-a95f-5a09a93408ec",
"content": "hello content 1",
"language": "english"
}
}
]
}
如何仅获取特定语言的书籍列表和BookContent语言
预期Json结果:
{
"results": [
{
"id": "d3e5185a-1b7b-427c-bbe3-030bfa2e3bce",
"title": "My Book Title",
"book_content": [
{
"id": "0fea8027-3ecf-4571-a95f-5a09a93408ec",
"content": "hello content 1",
"language": "english"
},
{
"id": "0fea8027-3ecf-4571-a95f-5a09a93408ed",
"content": "你好",
"language": "chinese"
}
]
}
]
}
{
"results": [
{
"id": "d3e5185a-1b7b-427c-bbe3-030bfa2e3bce",
"title": "My Book Title",
"book_content":
{
"id": "0fea8027-3ecf-4571-a95f-5a09a93408ec",
"content": "hello content 1",
"language": "english"
}
}
]
}
可能重复的查询集在
get\u queryset
中的格式是否正确?