Question about Django rest framework Serializers and Views working principles

Question

I’m trying to build REST api with Django Rest Framework and kind a having diffuculty to understand how things connected each other in terms of when we need to use the custom functions.

I have views.py like this

class myAPIView(viewsets.ModelViewSet):
    queryset = myTable.objects.all()
    serializer_class = mySerializer

this is my serializer.py

class myserializer(serializers.ModelSerializer):
    
    class Meta:
        model = myTable
        fields = "__all__"

    def create(self, validated_data):
        #doing some operation here and save validated data

    def update(self, instance, validated_data):    
        #doing some operation here and save validated data

I want to add some custom function to do let’s say sending emails with processed data.
so when I add my_email_sender function to nothing happens (nothing prints to terminal).

class myAPIView(viewsets.ModelViewSet):
        queryset = myTable.objects.all()
        serializer_class = mySerializer
    
    def my_email_func():
       print("Hey I'm email function")
       my_email_sender()

OTH, when do do this inside of the serializer its printing to the screen.

I actually really don’t know this my_email_func should be inside of views.py some sort of CRUD operation function like def create(), def update() etc..
I also don’t know why we cannot call it from views.py ?
Thank for your answer in advance!

Asked By: Alexander

||

Source

Answer 1

You just have to create a get function, and call your function inside of it

it should be something like this:

class myAPIView(viewsets.ModelViewSet):
        queryset = myTable.objects.all()
        serializer_class = mySerializer
    
    def my_email_func():
       print("Hey I'm email function")
       my_email_sender()
  
    def get(self, request, *args, **kwargs):
       my_email_func()
       return Response(status=status.HTTP_200_OK)

and then create a URL in the urls.py that references this view and call the endpoint with get method form postman or the browser.

Answered By: Ahmad Othman

Question about Django rest framework Serializers and Views working principles

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