我使用Django Restful Api，我想在一段时间内发布记录（多个记录！），模型，序列化，视图集如下
有人有什么建议吗？谢谢你的推荐！
模型
class Brand(models.Model):
Company_Group = models.ManyToManyField(Company)
Brand_Group = models.CharField(u'Brand Group',max_length=255, default="")
Pref_Brand_Name_Flg = models.CharField(u'Preferred Brand Name Flag',max_length=255, default="")
Pref_Brand_Name = models.CharField(u'Preferred Brand Name',max_length=255, default="")
PrimaryContact = models.ForeignKey(UserRole, null=True, blank=True) #primarybroker
Protect_period = models.CharField(u'Protect period',max_length=255, default="")
# Pref_Brand_Name = models.CharField(u'Preferred Brand Name',max_length=255, default="")
Brand_Name = models.CharField(u'Brand Name',max_length=255, default="")
Brand_Name_SC = models.CharField(u'Brand Name in Local Language',max_length=255, default="")
Year_Enter_Market = models.CharField(u'Entered Market in (Year)',max_length=255, default="")
Category_Display = models.CharField(u'Category Display',max_length=255, default="")
Category_1_Code = models.CharField(u'Category',max_length=255, default="")
Category_2_Code = models.CharField(u'Sub Category',max_length=255, default="")
Price_Low = models.CharField(u'Price Range - Low',max_length=255, default="")
Price_High = models.CharField(u'Price Range - High',max_length=255, default="")
Size_Low = models.CharField(u'Typical Store Size - Low',max_length=255, default="")
Size_High = models.CharField(u'Typical Store Size - High',max_length=255, default="")
Headerquater = models.CharField(u'Headerquater',max_length=255, default="")
Status = models.CharField(u'Status',max_length=255, default="")
Created_On = models.DateField(u'Created On',auto_now_add=True)
Created_By = models.CharField(u'Created By',max_length=255, default="")
Modified_On = models.DateField(u'Modified On', auto_now=True)
Modified_By = models.CharField(u'Modified By',max_length=255, default="")
Agreement_InPlace_Flg = models.CharField(u'TR Agreement in place?',max_length=20, default="")
Web_Site = models.CharField(u'Web Site',max_length=20, default="")
Comment = models.CharField(u'Comment',max_length=20, default="")
viewset
class BrandViewSet(viewsets.ModelViewSet):
queryset = Brand.objects.all()
serializer_class = BrandSerializer
串行
class BrandSerializer(serializers.HyperlinkedModelSerializer):
PrimaryContact_id = serializers.ReadOnlyField(source='PrimaryContact.id', read_only=True)
def __init__(self, *args, **kwargs):
many = kwargs.pop('many', True)
super(BrandSerializer, self).__init__(many=many, *args, **kwargs)
class Meta:
model = Brand
fields = data_export_setting.Brand_form_stand # +options ??
#Brand_detail = serializers
“myTest code”：a.py
item = [{"id":"2","PrimaryContact_id":"00000","Pref_Brand_Name_Flg":"00000","Protect_period":"test_for_Protect_period_1","Pref_Brand_Name":"Test","Brand_Name":"Chanel Group","Brand_Name_SC":"test","Year_Enter_Market":"test","Category_Display":"test","Category_1_Code":"api","Category_2_Code":"api","Price_Low":"test","Price_High":"test","Size_High":"test","Headerquater":"test","Status":"test","Created_On":"2017-06-14","Modified_By":"2017-07-08","Modified_On":"000"},{"id":"3","PrimaryContact_id":"1111","Pref_Brand_Name_Flg":"11111","Protect_period":"ppppp","Pref_Brand_Name":"Test","Brand_Name":"Chanel Group 2","Brand_Name_SC":"test","Year_Enter_Market":"test","Category_Display":"test","Category_1_Code":"api","Category_2_Code":"api","Price_Low":"test","Price_High":"test","Size_High":"test","Headerquater":"test","Status":"test","Created_On":"2017-06-14","Modified_By":"2017-07-08","Modified_On":"000"}]
data=json.dumps(item)
def test_get_user_list_3():
resp = requests.post(urlname,auth=AUTH,data=data,headers={ "Content-Type":"application/json","Accept": "application/json"})
test_get_user_list_3()
如果项目是一条记录，则可以
item ={"id":"1","PrimaryContact_id":"00000","Pref_Brand_Name_Flg":"00000","Protect_period":"test_for_Protect_period_1","Pref_Brand_Name":"Test","Brand_Name":"Chanel Group","Brand_Name_SC":"test","Year_Enter_Market":"test","Category_Display":"test","Category_1_Code":"api","Category_2_Code":"api","Price_Low":"test","Price_High":"test","Size_High":"test",Headerquater":"test","Status":"test","Created_On":"2017-06-14","Modified_By":"2017-07-08","Modified_On":"000"},
答案 0 :(得分：0)
如DRF documentation所示，您可以使用ListSerializer创建模型的多个实例。
最好的办法是使用您自己的自定义ListSerializer方法创建单独的序列化程序（.create()），以创建模型的多个实例。然后在您的视图中，您编写一些业务逻辑来检查它是单个对象还是多个对象的列表，并将它们发送到适当的序列化程序以进行创建。请务必查看ListSerializer以及如何使用many=True。
您可以使用自己的自定义.create()方法使用相同的序列化程序，并在其中包含业务逻辑，但请查看文档并查看创建多个对象实例的推荐方法。
答案 1 :(得分：0)
好的，我花了相当多的时间来尝试这项工作。下面是我用来制作批量创建的代码。
get_serializer默认使用的ModelViewSet方法在没有many=True的数据中传递，因此您必须覆盖它并确保检查列表而不是字典的请求
这是能够从列表中批量创建项目所需的唯一更改。
models.py
class Brand(models.Model):
# ------------------------------------------
# Relations
# ------------------------------------------
Company_Group = models.ManyToManyField(Company)
PrimaryContact = models.ForeignKey(User, null=True, blank=True)
# ------------------------------------------
# Attributes
# ------------------------------------------
# Brand attrs
Brand_Name = models.CharField(u'Brand Name',max_length=255, blank=True)
Brand_Group = models.CharField(u'Brand Group',max_length=255, blank=True)
Pref_Brand_Name = models.CharField(u'Preferred Brand Name',max_length=255, blank=True)
Brand_Name_SC = models.CharField(u'Brand Name in Local Language',max_length=255, blank=True)
Pref_Brand_Name_Flg = models.CharField(u'Preferred Brand Name Flag',max_length=255, blank=True)
# Record management attrs
Modified_On = models.DateField(u'Modified On', auto_now=True)
Created_On = models.DateField(u'Created On', auto_now_add=True)
Created_By = models.CharField(u'Created By', max_length=255, blank=True)
Modified_By = models.CharField(u'Modified By', max_length=255, blank=True)
# Category attrs
Category_1_Code = models.CharField(u'Category', max_length=255, blank=True)
Category_2_Code = models.CharField(u'Sub Category', max_length=255, blank=True)
Category_Display = models.CharField(u'Category Display',max_length=255, blank=True)
# Pricing attrs
Price_Low = models.CharField(u'Price Range - Low', max_length=255, blank=True)
Price_High = models.CharField(u'Price Range - High', max_length=255, blank=True)
# Store attrs
Size_Low = models.CharField(u'Typical Store Size - Low', max_length=255, blank=True)
Size_High = models.CharField(u'Typical Store Size - High', max_length=255, blank=True)
# Company attrs
Status = models.CharField(u'Status', max_length=255, blank=True)
Comment = models.CharField(u'Comment', max_length=20, blank=True)
Web_Site = models.CharField(u'Web Site', max_length=20, blank=True)
Headerquater = models.CharField(u'Headerquater', max_length=255, blank=True)
Protect_period = models.CharField(u'Protect period', max_length=255, blank=True)
Year_Enter_Market = models.CharField(u'Entered Market in (Year)', max_length=255, blank=True)
Agreement_InPlace_Flg = models.CharField(u'TR Agreement in place?', max_length=20, blank=True)
def __str__(self):
return self.Brand_Name
class Meta:
db_table = 'brand'
serializers.py
class BrandSerializer(serializers.ModelSerializer):
class Meta:
model = Brand
fields = '__all__'
views.py
class BrandViewSet(viewsets.ModelViewSet):
model = Brand
serializer_class = BrandSerializer
queryset = Brand.objects.all()
def get_serializer(self, *args, **kwargs):
if 'data' in kwargs:
data = kwargs['data']
if isinstance(data, list):
kwargs['many'] = True
return super().get_serializer(*args, **kwargs)
urls.py
from rest_framework.routers import DefaultRouter
from .views import BrandViewSet
router = DefaultRouter()
router.register(r'brand', BrandViewSet)
urlpatterns = router.urls
我使用postman以这种格式发送数据（JSON）：
[
{
"Brand_Name":"",
"Brand_Group":"",
"Pref_Brand_Name":"",
"Brand_Name_SC":"",
"Pref_Brand_Name_Flg":"",
"Created_By":"",
"Modified_By":"",
"Category_1_Code":"",
"Category_2_Code":"",
"Category_Display":"",
"Price_Low":"",
"Price_High":"",
"Size_Low":"",
"Size_High":"",
"Status":"",
"Comment":"",
"Web_Site":"",
"Headerquater":"",
"Protect_period":"",
"Year_Enter_Market":"",
"Agreement_InPlace_Flg":"",
"PrimaryContact":null,
"Company_Group":[
1
]
},
{
"Brand_Name":"",
"Brand_Group":"",
"Pref_Brand_Name":"",
"Brand_Name_SC":"",
"Pref_Brand_Name_Flg":"",
"Created_By":"",
"Modified_By":"",
"Category_1_Code":"",
"Category_2_Code":"",
"Category_Display":"",
"Price_Low":"",
"Price_High":"",
"Size_Low":"",
"Size_High":"",
"Status":"",
"Comment":"",
"Web_Site":"",
"Headerquater":"",
"Protect_period":"",
"Year_Enter_Market":"",
"Agreement_InPlace_Flg":"",
"PrimaryContact":null,
"Company_Group":[
1
]
}
]