Uploading multiple images into django rest framework/react - django

Question

Trying to do a fairly simple project where I can upload multiple images to my server with just a few other fields. I tried to follow this post but wasn't able to get anywhere on it. I know I am going to need to break my models into two with 'PostImage' having a ForeignKey that relates to Post. And I know I will need to modify the serializer in order to allow an array of image files. Any help would be greatly appreciated.
models.py:
from django.db import models
class Post(models.Model):
title = models.CharField(max_length = 100)
content = models.TextField()
image = models.ImageField(upload_to='post_images')
def __str__(self):
return self.title
serializers.py:
from rest_framework import serializers
from .models import Post
class PostSerializer(serializers.ModelSerializer):
class Meta:
model = Post
fields = '__all__'
views.py:
from django.shortcuts import render
# Create your views here.
from .serializers import PostSerializer
from .models import Post
from rest_framework.views import APIView
from rest_framework.parsers import MultiPartParser, FormParser
from rest_framework.response import Response
from rest_framework import status
# Create your views here.
class PostView(APIView):
parser_classes = (MultiPartParser, FormParser)
def get(self, request, *args, **kwargs):
posts = Post.objects.all()
serializer = PostSerializer(posts, many=True)
return Response(serializer.data)
def post(self, request, *args, **kwargs):
posts_serializer = PostSerializer(data=request.data)
if posts_serializer.is_valid():
posts_serializer.save()
return Response(posts_serializer.data, status=status.HTTP_201_CREATED)
else:
print('error', posts_serializer.errors)
return Response(posts_serializer.errors, status=status.HTTP_400_BAD_REQUEST)

Answer 1

You need to have the ForeignKey relation with the Post Model. You can do like this:
models.py
from django.db import models
class Media(models.Model):
detail = models.CharField(max_length=200, default='', null=True, blank=True)
user = models.ForeignKey(to=MyUser, related_name='user_media')
type = models.CharField(max_length=20, choices=Constant.model.MEDIA_TYPE, default='other')
media = models.FileField(max_length=10000, upload_to=upload_media_file, blank=True, null=True)
class Post(models.Model):
title = models.CharField(max_length = 100)
content = models.TextField()
media = models.ForeignKey(Media, related_name='posts')
def __str__(self):
return self.title
serializer.py
from rest_framework import serializers
from .models import Post
class PostSerializer(serializers.ModelSerializer):
media = serializers.ListField(write_only=True,
child=serializers.FileField(max_length=10000000,
allow_empty_file=True,
use_url=False)
class Meta:
model = Post
fields = '__all__'
def is_valid(self, raise_exception=False):
if len(data.getlist('media')) > 5:
raise 'some error'