While building my API, I didn't think about the logic behind notifications. Please, How do I solve a problem like this on a potentially big project? let us assume I have the code below:
model.py
class Showcase(models.Model):
title = models.CharField(max_length=50)
description = models.TextField(null=True)
skill_type = models.ForeignKey(Skill, on_delete=models.CASCADE)
user = models.ForeignKey(settings.AUTH_USER_MODEL, on_delete=models.DO_NOTHING, related_name="Showcases")
content = models.TextField(null=True)
created_on = models.DateTimeField(auto_now=True)
updated_on = models.DateTimeField(auto_now_add=True)
voters = models.ManyToManyField(settings.AUTH_USER_MODEL, related_name="upvotes")
slug = models.SlugField(max_length=255, unique=True)
serializer.py
class ShowcaseSerializer(serializers.ModelSerializer):
user = serializers.StringRelatedField(read_only=True)
created_on = serializers.SerializerMethodField(read_only=True)
likes_count = serializers.SerializerMethodField(read_only=True)
user_has_voted = serializers.SerializerMethodField(read_only=True)
slug = serializers.SlugField(read_only=True)
comment_count = serializers.SerializerMethodField(read_only=True)
class Meta:
model = Showcase
exclude = ['voters', 'updated_on']
def get_created_on(self, instance):
return instance.created_on.strftime("%d %B %Y")
def get_likes_count(self, instance):
return instance.voters.count()
def get_user_has_voted(self, instance):
request = self.context.get("request")
return instance.voters.filter(pk=request.user.pk).exists()
def get_comment_count(self, instance):
return instance.comments.count()
view.py
# SHOWCASE APIView
class showcaseCreateViewSet(generics.ListCreateAPIView):
'''
Create showcases view. user must be logged in to do this
'''
queryset = Showcase.objects.all()
serializer_class = ShowcaseSerializer
permission_classes = [IsAuthenticatedOrReadOnly]
def perform_create(self, serializer):
serializer.save(user=self.request.user)
class ShowcaseLikeAPIView(APIView):
'''
Can like(post) and unlike(delete) the showcases, must be
authenticated to do this
'''
serializer_class = ShowcaseDetaiedSerializer
permission_classes = [IsAuthenticated]
def delete(self, request, slug):
showcase = get_object_or_404(Showcase, slug=slug)
user = self.request.user
showcase.voters.remove(user)
showcase.save()
serializer_context = {"request": request}
serializer = self.serializer_class(showcase, context=serializer_context)
return Response(serializer.data, status=status.HTTP_200_OK)
def post(self, request, slug):
showcase = get_object_or_404(Showcase, slug=slug)
user = self.request.user
showcase.voters.add(user)
showcase.save()
serializer_context = {"request": request}
serializer = self.serializer_class(showcase, context=serializer_context)
return Response(serializer.data, status=status.HTTP_200_OK)
with the code above that likes a user's post(Showcase), I am trying to figure out how the user can get notified when a user likes his post. and the things I am considering for the notification, the user that gets notified, the user that makes the action, the post(in this case showcase) that is getting the action, the message that gets passed, a boolean field for if it has been read. The method that comes to my head is creating an app for that but after nothing else. please, how do I solve a problem like this, or what is the best/recommended way to solve this?
