[Answered ]-How can i make signals in django which can differentiate between put and post method?

by

1👍

✅

The post_save signal sends an argument called created which is

A boolean; True if a new record was created.

You can use this to differentiate between if a new record is created or just updated.

More info in the docs

👤Sagar Ramachandrappa

1👍

Suppose you use serializer for DRF view so you could override create() method of your User serializer. 

class UserSerializer(serializer.ModelSerializer):
    ...
    def create(self, validated_data):
        user = User.objects.create(**validated_data)
        Notification.objects.create( # fill your fields here )
        return user

But more clear solution is writing custom manager and override create method there which will accept both fields for User and for Notification models: 

class UserManager(models.Manager):
    ...
    def create(self, gender, role ... type #and so on):
        user = User(
            gender=gender
            role=role
            ...
            # other fields               
            )
        user.save()
        notification = Notification(
                           type=type 
                           ..  
                           # other fields
                           )      
        notification.save()         
        return user

class User(models.Model):
    ....
    objects = UserManager()

serializers: 

    class UserSerializer(serializer.ModelSerializer):
        ...
        def create(self, validated_data):
            return User.objects.create(
                   gender=validated_data.get('gender')
                   role=validated_data.get('role')
                   ....
                   type = validated_data.get('type')
👤Ivan Semochkin

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