Problem with serialising POST, PUT request in DRF

[onlinejudge95]

Hi Devs,

I am trying to implement a CRUD app(modeling blogs) using Django & DRF. I am using rest_framework.serializers.ModelSerializer for serializing my model. While sending a POST, PUT request the serializer is not saving my data, what am I missing?

terminal

Request data:- {'title': 'title 2', 'body': 'body 2'}
Serialized data:- {'pk': 2, 'title': '', 'body': ''}
[06/Feb/2020 17:19:36] "POST /api/blog/ HTTP/1.1" 201 29
[06/Feb/2020 17:19:44] "GET /api/blog/ HTTP/1.1" 200 168

  

views.py

from blog.models import Blog

from blog.serializers import BlogSerializer

from django.core.paginator import EmptyPage, PageNotAnInteger, Paginator

from rest_framework import status

from rest_framework.decorators import api_view

from rest_framework.response import Response

@api_view(["GET", "POST"])

def blog_collection(request):

"""

API for operations on blogs, handles following operations

1. Fetch(GET) the list of blogs.

2. Create(POST) a new blog entry.

"""

if request.method == "POST":

print(f"Request data:- {request.data}")

if request.data == dict():

return Response(status=status.HTTP_400_BAD_REQUEST)

serializer = BlogSerializer(data=request.data)

if serializer.is_valid():

serializer.save()

print(f"Serialized data:- {serializer.data}")

return Response(serializer.data, status=status.HTTP_201_CREATED)

return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)

serializers.py

from blog.models import Blog

from rest_framework import serializers

class BlogSerializer(serializers.ModelSerializer):

class Meta:

model = Blog

fields = ("pk", "title", "body")

model.py 

from django.db import models

class Blog(models.Model):

_title = models.CharField("Title", max_length=250)

_body = models.TextField("Body")

@property

def title(self):

return self._title

@title.setter

def title(self, value):

self._title = value

@property

def body(self):

return self._body

@body.setter

def body(self, value):

self._body = value

@staticmethod

def get_blogs():

return Blog.objects.all().order_by("id")

@staticmethod

def get_by_pk(pk):

return Blog.objects.get(pk=pk)

@staticmethod

def get_by_attributes(attributes):

return Blog.objects.get(**attributes)

@staticmethod

def create_blog(data):

obj = Blog.objects.create(**data)

obj.save()

return obj

@staticmethod

def update_blog(pk, data):

Blog.objects.filter(pk=pk).update(**data)

@staticmethod

def delete_blog(pk):

Blog.objects.get(pk=pk).delete()

def __str__(self):

return f"<Title:- {self.title[0:50]}>"