Django - ApiDetailView - django

Question

I am following this solution on how to get specific fields from a django model:
Select specific fields in Django get_object_or_404
from django.core import serializers as djangoserializer # module 'rest_framework.serializers' has no attribute 'serialize'
class ProjectDetailApiView(APIView):
authentication_classes = (authentication.SessionAuthentication,)
permission_classes = (permissions.IsAuthenticated,)
def get(self, request, slug=None, format=None):
project_instance = get_object_or_404(Project.objects.only('project_title', 'project_post'), slug=slug)
data = djangoserializer.serialize('json', [ project_instance, ], fields=('project_title','project_post'))
user = self.request.user
updated = False
viewed = False
if not user in project_instance.project_views.all():
viewed = True
project_instance.project_views.add(user)
updated = True
data = {
"project": data,
"updated":updated,
"viewed":viewed
}
return Response(data)
Output:
{
"project": "[{\"model\": \"webdata.project\", \"pk\": 4, \"fields\": {\"project_title\": \"Project 4\", \"project_post\": \"Blabla\"}}]",
"updated": true,
"viewed": false
}
Desired Output:
{
"project_title": "Project 4",
"project_post": "Blabla",
"updated": true,
"viewed": false
}
Thank you

Answer 1

Use DRF's Serializer instead of Django's built-in serializer.
# serializers.py
from rest_framework import serializers
class ProjectSerializer(serializers.ModelSerializer):
class Meta:
model = Project
fields = ('project_title', 'project_post', 'updated', 'viewed')
# views.py
class ProjectDetailApiView(APIView):
authentication_classes = (authentication.SessionAuthentication,)
permission_classes = (permissions.IsAuthenticated,)
def get(self, request, slug=None, format=None):
project_instance = get_object_or_404(Project, slug=slug)
serializer = ProjectSerializer(project_instance)
return Response(serializer.data)

Answer 2

The serialization of regular dictionaries is very good in python.
So instead of configuring the serializer - why not just create a python dictionary with the desired data? (That's how I do it for simple things that I need only in one place.)
data = {
"project_title": project_instance.project_title,
"project_post": project_instance.project_post,
"updated":updated,
"viewed":viewed
}
return JSONResponse(data)
You haven't posted the Project model, I'm just supposing from the serializer config that the fields are named project_title and project_post.
This will return a response with status 200, mimetype application/json and the data dict as valid JSON.