Python Django rest框架,使用Django hvad转换模型
我有型号Python Django rest框架,使用Django hvad转换模型,python,django,django-rest-framework,django-hvad,Python,Django,Django Rest Framework,Django Hvad,我有型号产品: class Product(TranslatableModel): name = models.CharField(max_length=255, unique=True) translations = TranslatedFields( description=models.TextField(), ) 在产品详细信息的管理中,我有带有语言的选项卡。例如,选项卡EN、CZ,每个选项卡都包括disctiption。所以PUT请求看起来像
产品
:
class Product(TranslatableModel):
name = models.CharField(max_length=255, unique=True)
translations = TranslatedFields(
description=models.TextField(),
)
在产品详细信息的管理中,我有带有语言的选项卡。例如,选项卡EN、CZ,每个选项卡都包括disctiption
。所以PUT请求看起来像:
{
'product': '1',
'id': 1,
'name': 'Name',
'translations': {
'cz': {'desctiption': 'Description cz'},
'en': {'desctiption': 'Description en'}
}
}
我建立在一个允许我做这个请求的地方
在序列化程序中,我有:
class ProductTranslationSerializer(serializers.ModelSerializer):
class Meta:
exclude = ['description']
class ProductSerializer(TranslationsMixin, serializers.ModelSerializer):
class Meta:
model = Product
translations_serializer = ProductTranslationSerializer
fields = (
'name',
'description',
)
问题是ModelViewSet将如何处理此请求?我是否可以选择“language_code=en”这样的语言,过滤该查询并获得如下结果:
[
{
id: 1
name: "name"
descritpion: "descritpion"
},
....
]
谢谢大家! 我最可能实现的方式是: models.py
class Product(TranslatableModel):
category = models.ForeignKey('product.ProductCategory',
related_name='product_category',
null=True,
on_delete=models.SET_NULL,
verbose_name=u'category')
cover = models.ImageField(upload_to=product_cover,
null=True,
verbose_name=u'cover')
translations = TranslatedFields(
title=models.CharField(max_length=100,
null=True,
verbose_name=u'title'),
summary=models.TextField(null=True,
verbose_name=u'summary'),
model=models.CharField(max_length=255,
null=True,
blank=True,
verbose_name=u'model'),
price=models.DecimalField(default=0.00,
max_digits=10,
decimal_places=2,
blank=True,
validators=[MinValueValidator(0)],
verbose_name=u'price'),
content=models.TextField(verbose_name=u'content'),
publish_time=models.DateTimeField(default=timezone.now,
verbose_name=u'发布publish_time')
)
view_times = models.IntegerField(default=0,
verbose_name=u'view_times ')
views.py
class ProductViewSet(ModelViewSet):
serializer_class = ProductListSerializer
def get_queryset(self):
if 'language_code' in self.request.GET:
language_code = self.request.GET.get('language_code')
queryset = Product.objects.language(language_code).order_by('-id')
else:
queryset = Product.objects.language().order_by('-id')
return queryset
序列化程序.py
class ProductCategorySerializer(TranslatableModelSerializer):
class Meta:
model = ProductCategory
fields = '__all__'
class ProductListSerializer(TranslatableModelSerializer):
category = ProductCategorySerializer(read_only=True)
class Meta:
model = Product
exclude = ['is_abandon', 'content', ]
url.py
from rest_framework import routers
router = routers.DefaultRouter()
router.register(r'product', ProductViewSet, base_name='api-product')
...
结果:
你会得到:
你会得到:
{
"count": 1,
"page_num": 1,
"page_no": 1,
"next": "",
"previous": "",
"results": [
{
"id": 2,
"category": {
"id": 2,
"create_time": "2017-08-10 16:49:41",
"update_time": "2017-08-18 08:56:02",
"name": "测试",
"language_code": "zh-hans"
},
"create_time": "2017-08-18 08:53:46",
"update_time": "2017-08-18 08:56:28",
"cover": "http://192.168.1.108/media/product/20170818-085346-518_59.jpg",
"view_times": 0,
"title": "标题",
"summary": "简介",
"model": null,
"price": "90.00",
"publish_time": "2017-08-18 08:53:00",
"language_code": "zh-hans"
}
]
}
{
"count": 1,
"page_num": 1,
"page_no": 1,
"next": "",
"previous": "",
"results": [
{
"id": 2,
"category": {
"id": 2,
"create_time": "2017-08-10 16:49:41",
"update_time": "2017-08-18 08:56:02",
"name": "测试",
"language_code": "zh-hans"
},
"create_time": "2017-08-18 08:53:46",
"update_time": "2017-08-18 09:00:23",
"cover": "http://192.168.1.108/media/product/20170818-085346-518_59.jpg",
"view_times": 0,
"title": "title",
"summary": "summary",
"model": "model",
"price": "91.00",
"publish_time": "2017-08-18 08:56:04",
"language_code": "en"
}
]
}
这样fk将不会更改语言,如果您希望fk也更改语言,请使用:
url.py
改变语言
http://192.168.1.108/zh-hans/api/product/
到
您将获得:
{
"count": 1,
"page_num": 1,
"page_no": 1,
"next": "",
"previous": "",
"results": [
{
"id": 2,
"category": {
"id": 2,
"create_time": "2017-08-10 16:49:41",
"update_time": "2017-08-18 08:56:02",
"name": "test",
"language_code": "en"
},
"create_time": "2017-08-18 08:53:46",
"update_time": "2017-08-18 09:00:23",
"cover": "http://192.168.1.108/media/product/20170818-085346-518_59.jpg",
"view_times": 0,
"title": "title",
"summary": "summary",
"model": "model",
"price": "91.00",
"publish_time": "2017-08-18 08:56:04",
"language_code": "en"
}
]
}
django hvad github repo@spectras所有者的答复: 如果我理解得很好,您希望为集合端点和项端点使用不同的序列化表单。也就是说,GET-1、PUT、POST将使用mixin,而GET-many将不使用。 为此,您需要两个不同的序列化程序:
类ProductItemSerializer(TranslateableModelSerializer):
class SomeModelViewSet(ModelViewSet):
# serializer_class = not needed, we use the method instead
def get_serializer_class(self):
if self.action == 'list':
return ProductItemSerializer
return ProductSerializer
另一种可能更容易在Javascript端使用的方法是为产品模型创建两个视图集,一个读写视图集支持翻译(使用ProductSerializer),另一个只读视图集不支持翻译(使用ProductItemSerializer)
同样,我通常只有不知道翻译的序列化程序,并添加一个知道翻译的/api/product/details/endpoint。这样,在客户端进入编辑/详细模式时,我只需处理dict对象的复杂性。Hi!谢谢你提供有用的信息!
{
"count": 1,
"page_num": 1,
"page_no": 1,
"next": "",
"previous": "",
"results": [
{
"id": 2,
"category": {
"id": 2,
"create_time": "2017-08-10 16:49:41",
"update_time": "2017-08-18 08:56:02",
"name": "test",
"language_code": "en"
},
"create_time": "2017-08-18 08:53:46",
"update_time": "2017-08-18 09:00:23",
"cover": "http://192.168.1.108/media/product/20170818-085346-518_59.jpg",
"view_times": 0,
"title": "title",
"summary": "summary",
"model": "model",
"price": "91.00",
"publish_time": "2017-08-18 08:56:04",
"language_code": "en"
}
]
}
class SomeModelViewSet(ModelViewSet):
# serializer_class = not needed, we use the method instead
def get_serializer_class(self):
if self.action == 'list':
return ProductItemSerializer
return ProductSerializer