How can I handle errors in Django serialization?

How can I handle errors in Django serialization?

In Django, you can handle errors during serialization by using the validate method in your serializer. This allows you to catch validation errors before the data is saved.

Can you give me an example of how to implement that?

Sure! You can override the validate method in your serializer class like this:

class MySerializer(serializers.Serializer):
    name = serializers.CharField(max_length=100)

    def validate_name(self, value):
        if not value:
            raise serializers.ValidationError('Name cannot be empty.')
        return value

What if I want to handle multiple fields?

You can validate multiple fields by overriding the validate method instead. Here's an example:

class MySerializer(serializers.Serializer):
    name = serializers.CharField(max_length=100)
    age = serializers.IntegerField()

    def validate(self, data):
        if data['age'] < 0:
            raise serializers.ValidationError('Age cannot be negative.')
        return data