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Python 2022-02-24 09:20:08
how to delete all instances of a model in django
from django.shortcuts import render from .models import Car def showthis(request): #deletes all objects from Car database table Car.objects.all().delete() context= {} return render(request, 'Blog/home.html', context) Add solution -
Python 2022-02-02 11:25:09
django queryset to instance
for e in Entry.objects.all(): print(e.headline) Add solution -
Python 2021-11-16 00:05:15
The `.create()` method does not support writable nested fields by default. Write an explicit `.create()` method for serializer `room_api.serializers.roomSerializer`, or set `read_only=True` on nested serializer fields.
class CoreInformation(generics.ListCreateAPIView): queryset = models.CoreInformation.objects.all() serializer_class = CustomCoreInfoSerializer def create(self, request, *args, **kwargs): serializer = self.get_serializer(data=request.d... Add solution -
Python 2021-11-15 02:55:10
django pandas queryset
import pandas as pd import datetime from myapp.models import BlogPost df = pd.DataFrame(list(BlogPost.objects.all().values())) df = pd.DataFrame(list(BlogPost.objects.filter(date__gte=datetime.datetime(2012, 5, 1)).values())) # limit which fields df = p... Add solution -
Python 2021-11-14 19:47:27
django insert data into database foreign key view.py
for i in range(1,10): obj = Count.objects.filter(userId=request.user.id, channelId=cid) if not obj: news_obj = News_Channel.objects.get(id=i) o = Count.objects.create(id=Count.objects.all().count() + 1,userId=reques... Add solution -
Python 2021-11-02 13:18:08
django many to many post update method via rest
class GroupMembershipSerializer(ModelSerializer): class Meta: model = Membership fields = ('person',) class GroupCreateSerializer(ModelSerializer): memberships = GroupMembershipSerializer(many=True, required=False) def creat... Add solution
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