[英]how to add data in my db for using django and DRF
I'm producing an API that uses DRF to receive Arduino's data and send it to Android.我正在生产一个 API,它使用 DRF 接收 Arduino 的数据并将其发送到 Android。 First of all, we succeeded in creating an API that shows the values stored in DB.首先,我们成功创建了一个 API,它显示了存储在 DB 中的值。 However, there is a problem in producing an API that sends Arduino's data to DB.但是,在生产将 Arduino 的数据发送到 DB 的 API 时存在问题。 Data is normally input, but this data is not stored.通常输入数据,但不存储该数据。 Can you tell me the problem of my code?你能告诉我我的代码的问题吗? here is my codes这是我的代码
views.py视图.py
from .models import arduino
from .serializers import arduinoSerializers
from rest_framework.viewsets import ViewSet, ModelViewSet
from rest_framework.response import Response
class arduinoToAndroidViewSet (ViewSet) :
def dataSend (self, request) :
user = self.request.user
queryset = arduino.objects.filter(name=user)
serializer = arduinoSerializers(queryset, many=True)
return Response(serializer.data)
class arduinoToDatabaseViewSet (ModelViewSet) :
serializer_class = arduinoSerializers
def get_queryset(self) :
user = self.request.user
return arduino.objects.filter(name=user)
def dataReceive(self, request) :
queryset = get_queryset()
serializer = arduinoSerializers(queryset, many=True)
serializer.save()
return Response(serializer.data)
serializers.py序列化程序.py
from rest_framework import serializers
from .models import arduino
class arduinoSerializers (serializers.ModelSerializer) :
name = serializers.CharField(source='name.username', read_only=True)
class Meta :
model = arduino
fields = ('name', 'temp', 'humi')
models.py模型.py
from django.db import models
from django.contrib.auth.models import User
class arduino (models.Model) :
name = models.ForeignKey(User, related_name='Username', on_delete=models.CASCADE, null=True)
temp = models.FloatField()
humi = models.FloatField()
def __str__ (self) :
return self.name.username
If you are referring to the problem that your dataReceive(self, request)
method is not saving data despite of having a valid queryset
(could not understand why you are querying and saving the save object again), is because you have to always call is_valid()
before attempting to save.如果您指的是尽管有有效的查询集但您的queryset
dataReceive(self, request)
方法没有保存数据的问题(不明白为什么要再次查询并保存保存 object),是因为您必须始终调用is_valid()
在尝试保存之前。 so it should be所以应该是
def dataReceive(self, request) :
queryset = get_queryset()
serializer = arduinoSerializers(queryset, many=True)
if serializer.is_valid():
serializer.save()
return Response(serializer.data)
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